kernel: Rollback the kernel to old version. [1/1]
PD#SWPL-158414
Problem:
Rollback the kernel to v10.2.1.
Solution:
Rollback the kernel to v10.2.1.
Verify:
N/A
Change-Id: I8caee3e8cf24db649f5bf431e760d0b27f2f0ae3
Signed-off-by: xiaohu.huang <xiaohu.huang@amlogic.com>
diff --git a/tasks.c b/tasks.c
index 3ef0ec5..fa60af3 100644
--- a/tasks.c
+++ b/tasks.c
@@ -1,8 +1,6 @@
/*
- * FreeRTOS Kernel V10.5.1
- * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
- *
- * SPDX-License-Identifier: MIT
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
@@ -21,9 +19,10 @@
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
- * https://www.FreeRTOS.org
- * https://github.com/FreeRTOS
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
*
+ * 1 tab == 4 spaces!
*/
/* Standard includes. */
@@ -31,8 +30,8 @@
#include <string.h>
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
- * all the API functions to use the MPU wrappers. That should only be done when
- * task.h is included from an application file. */
+all the API functions to use the MPU wrappers. That should only be done when
+task.h is included from an application file. */
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
/* FreeRTOS includes. */
@@ -45,175 +44,173 @@
#endif
/* Lint e9021, e961 and e750 are suppressed as a MISRA exception justified
- * because the MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined
- * for the header files above, but not in this file, in order to generate the
- * correct privileged Vs unprivileged linkage and placement. */
+because the MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined
+for the header files above, but not in this file, in order to generate the
+correct privileged Vs unprivileged linkage and placement. */
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE /*lint !e961 !e750 !e9021. */
/* Set configUSE_STATS_FORMATTING_FUNCTIONS to 2 to include the stats formatting
- * functions but without including stdio.h here. */
+functions but without including stdio.h here. */
#if ( configUSE_STATS_FORMATTING_FUNCTIONS == 1 )
-
-/* At the bottom of this file are two optional functions that can be used
- * to generate human readable text from the raw data generated by the
- * uxTaskGetSystemState() function. Note the formatting functions are provided
- * for convenience only, and are NOT considered part of the kernel. */
- #include <stdio.h>
+ /* At the bottom of this file are two optional functions that can be used
+ to generate human readable text from the raw data generated by the
+ uxTaskGetSystemState() function. Note the formatting functions are provided
+ for convenience only, and are NOT considered part of the kernel. */
+ #include <stdio.h>
#endif /* configUSE_STATS_FORMATTING_FUNCTIONS == 1 ) */
-#if ( configUSE_PREEMPTION == 0 )
-
-/* If the cooperative scheduler is being used then a yield should not be
- * performed just because a higher priority task has been woken. */
- #define taskYIELD_IF_USING_PREEMPTION()
+#if( configUSE_PREEMPTION == 0 )
+ /* If the cooperative scheduler is being used then a yield should not be
+ performed just because a higher priority task has been woken. */
+ #define taskYIELD_IF_USING_PREEMPTION()
#else
- #define taskYIELD_IF_USING_PREEMPTION() portYIELD_WITHIN_API()
+ #define taskYIELD_IF_USING_PREEMPTION() portYIELD_WITHIN_API()
#endif
/* Values that can be assigned to the ucNotifyState member of the TCB. */
-#define taskNOT_WAITING_NOTIFICATION ( ( uint8_t ) 0 ) /* Must be zero as it is the initialised value. */
-#define taskWAITING_NOTIFICATION ( ( uint8_t ) 1 )
-#define taskNOTIFICATION_RECEIVED ( ( uint8_t ) 2 )
+#define taskNOT_WAITING_NOTIFICATION ( ( uint8_t ) 0 )
+#define taskWAITING_NOTIFICATION ( ( uint8_t ) 1 )
+#define taskNOTIFICATION_RECEIVED ( ( uint8_t ) 2 )
/*
* The value used to fill the stack of a task when the task is created. This
* is used purely for checking the high water mark for tasks.
*/
-#define tskSTACK_FILL_BYTE ( 0xa5U )
+#define tskSTACK_FILL_BYTE ( 0xa5U )
-/* Bits used to record how a task's stack and TCB were allocated. */
-#define tskDYNAMICALLY_ALLOCATED_STACK_AND_TCB ( ( uint8_t ) 0 )
-#define tskSTATICALLY_ALLOCATED_STACK_ONLY ( ( uint8_t ) 1 )
-#define tskSTATICALLY_ALLOCATED_STACK_AND_TCB ( ( uint8_t ) 2 )
+/* Bits used to recored how a task's stack and TCB were allocated. */
+#define tskDYNAMICALLY_ALLOCATED_STACK_AND_TCB ( ( uint8_t ) 0 )
+#define tskSTATICALLY_ALLOCATED_STACK_ONLY ( ( uint8_t ) 1 )
+#define tskSTATICALLY_ALLOCATED_STACK_AND_TCB ( ( uint8_t ) 2 )
/* If any of the following are set then task stacks are filled with a known
- * value so the high water mark can be determined. If none of the following are
- * set then don't fill the stack so there is no unnecessary dependency on memset. */
-#if ( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) || ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark2 == 1 ) )
- #define tskSET_NEW_STACKS_TO_KNOWN_VALUE 1
+value so the high water mark can be determined. If none of the following are
+set then don't fill the stack so there is no unnecessary dependency on memset. */
+#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) || ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark2 == 1 ) )
+ #define tskSET_NEW_STACKS_TO_KNOWN_VALUE 1
#else
- #define tskSET_NEW_STACKS_TO_KNOWN_VALUE 0
+ #define tskSET_NEW_STACKS_TO_KNOWN_VALUE 0
#endif
/*
* Macros used by vListTask to indicate which state a task is in.
*/
-#define tskRUNNING_CHAR ( 'X' )
-#define tskBLOCKED_CHAR ( 'B' )
-#define tskREADY_CHAR ( 'R' )
-#define tskDELETED_CHAR ( 'D' )
-#define tskSUSPENDED_CHAR ( 'S' )
+#define tskRUNNING_CHAR ( 'X' )
+#define tskBLOCKED_CHAR ( 'B' )
+#define tskREADY_CHAR ( 'R' )
+#define tskDELETED_CHAR ( 'D' )
+#define tskSUSPENDED_CHAR ( 'S' )
/*
- * Some kernel aware debuggers require the data the debugger needs access to to
- * be global, rather than file scope.
+ * Some kernel aware debuggers require the data the debugger needs access to be
+ * global, rather than file scope.
*/
#ifdef portREMOVE_STATIC_QUALIFIER
- #define static
+ #define static
#endif
/* The name allocated to the Idle task. This can be overridden by defining
- * configIDLE_TASK_NAME in FreeRTOSConfig.h. */
+configIDLE_TASK_NAME in FreeRTOSConfig.h. */
#ifndef configIDLE_TASK_NAME
- #define configIDLE_TASK_NAME "IDLE"
+ #define configIDLE_TASK_NAME "IDLE"
#endif
#if ( configUSE_PORT_OPTIMISED_TASK_SELECTION == 0 )
-/* If configUSE_PORT_OPTIMISED_TASK_SELECTION is 0 then task selection is
- * performed in a generic way that is not optimised to any particular
- * microcontroller architecture. */
+ /* If configUSE_PORT_OPTIMISED_TASK_SELECTION is 0 then task selection is
+ performed in a generic way that is not optimised to any particular
+ microcontroller architecture. */
-/* uxTopReadyPriority holds the priority of the highest priority ready
- * state task. */
- #define taskRECORD_READY_PRIORITY( uxPriority ) \
- { \
- if( ( uxPriority ) > uxTopReadyPriority ) \
- { \
- uxTopReadyPriority = ( uxPriority ); \
- } \
- } /* taskRECORD_READY_PRIORITY */
+ /* uxTopReadyPriority holds the priority of the highest priority ready
+ state task. */
+ #define taskRECORD_READY_PRIORITY( uxPriority ) \
+ { \
+ if( ( uxPriority ) > uxTopReadyPriority ) \
+ { \
+ uxTopReadyPriority = ( uxPriority ); \
+ } \
+ } /* taskRECORD_READY_PRIORITY */
-/*-----------------------------------------------------------*/
+ /*-----------------------------------------------------------*/
- #define taskSELECT_HIGHEST_PRIORITY_TASK() \
- { \
- UBaseType_t uxTopPriority = uxTopReadyPriority; \
- \
- /* Find the highest priority queue that contains ready tasks. */ \
- while( listLIST_IS_EMPTY( &( pxReadyTasksLists[ uxTopPriority ] ) ) ) \
- { \
- configASSERT( uxTopPriority ); \
- --uxTopPriority; \
- } \
- \
- /* listGET_OWNER_OF_NEXT_ENTRY indexes through the list, so the tasks of \
- * the same priority get an equal share of the processor time. */ \
- listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopPriority ] ) ); \
- uxTopReadyPriority = uxTopPriority; \
- } /* taskSELECT_HIGHEST_PRIORITY_TASK */
+ #define taskSELECT_HIGHEST_PRIORITY_TASK() \
+ { \
+ UBaseType_t uxTopPriority = uxTopReadyPriority; \
+ \
+ /* Find the highest priority queue that contains ready tasks. */ \
+ while( listLIST_IS_EMPTY( &( pxReadyTasksLists[ uxTopPriority ] ) ) ) \
+ { \
+ configASSERT( uxTopPriority ); \
+ --uxTopPriority; \
+ } \
+ \
+ /* listGET_OWNER_OF_NEXT_ENTRY indexes through the list, so the tasks of \
+ the same priority get an equal share of the processor time. */ \
+ listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopPriority ] ) ); \
+ uxTopReadyPriority = uxTopPriority; \
+ } /* taskSELECT_HIGHEST_PRIORITY_TASK */
-/*-----------------------------------------------------------*/
+ /*-----------------------------------------------------------*/
-/* Define away taskRESET_READY_PRIORITY() and portRESET_READY_PRIORITY() as
- * they are only required when a port optimised method of task selection is
- * being used. */
- #define taskRESET_READY_PRIORITY( uxPriority )
- #define portRESET_READY_PRIORITY( uxPriority, uxTopReadyPriority )
+ /* Define away taskRESET_READY_PRIORITY() and portRESET_READY_PRIORITY() as
+ they are only required when a port optimised method of task selection is
+ being used. */
+ #define taskRESET_READY_PRIORITY( uxPriority )
+ #define portRESET_READY_PRIORITY( uxPriority, uxTopReadyPriority )
#else /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
-/* If configUSE_PORT_OPTIMISED_TASK_SELECTION is 1 then task selection is
- * performed in a way that is tailored to the particular microcontroller
- * architecture being used. */
+ /* If configUSE_PORT_OPTIMISED_TASK_SELECTION is 1 then task selection is
+ performed in a way that is tailored to the particular microcontroller
+ architecture being used. */
-/* A port optimised version is provided. Call the port defined macros. */
- #define taskRECORD_READY_PRIORITY( uxPriority ) portRECORD_READY_PRIORITY( ( uxPriority ), uxTopReadyPriority )
+ /* A port optimised version is provided. Call the port defined macros. */
+ #define taskRECORD_READY_PRIORITY( uxPriority ) portRECORD_READY_PRIORITY( uxPriority, uxTopReadyPriority )
-/*-----------------------------------------------------------*/
+ /*-----------------------------------------------------------*/
- #define taskSELECT_HIGHEST_PRIORITY_TASK() \
- { \
- UBaseType_t uxTopPriority; \
- \
- /* Find the highest priority list that contains ready tasks. */ \
- portGET_HIGHEST_PRIORITY( uxTopPriority, uxTopReadyPriority ); \
- configASSERT( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ uxTopPriority ] ) ) > 0 ); \
- listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopPriority ] ) ); \
- } /* taskSELECT_HIGHEST_PRIORITY_TASK() */
+ #define taskSELECT_HIGHEST_PRIORITY_TASK() \
+ { \
+ UBaseType_t uxTopPriority; \
+ \
+ /* Find the highest priority list that contains ready tasks. */ \
+ portGET_HIGHEST_PRIORITY( uxTopPriority, uxTopReadyPriority ); \
+ configASSERT( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ uxTopPriority ] ) ) > 0 ); \
+ listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopPriority ] ) ); \
+ } /* taskSELECT_HIGHEST_PRIORITY_TASK() */
-/*-----------------------------------------------------------*/
+ /*-----------------------------------------------------------*/
-/* A port optimised version is provided, call it only if the TCB being reset
- * is being referenced from a ready list. If it is referenced from a delayed
- * or suspended list then it won't be in a ready list. */
- #define taskRESET_READY_PRIORITY( uxPriority ) \
- { \
- if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ ( uxPriority ) ] ) ) == ( UBaseType_t ) 0 ) \
- { \
- portRESET_READY_PRIORITY( ( uxPriority ), ( uxTopReadyPriority ) ); \
- } \
- }
+ /* A port optimised version is provided, call it only if the TCB being reset
+ is being referenced from a ready list. If it is referenced from a delayed
+ or suspended list then it won't be in a ready list. */
+ #define taskRESET_READY_PRIORITY( uxPriority ) \
+ { \
+ if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ ( uxPriority ) ] ) ) == ( UBaseType_t ) 0 ) \
+ { \
+ portRESET_READY_PRIORITY( ( uxPriority ), ( uxTopReadyPriority ) ); \
+ } \
+ }
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
/*-----------------------------------------------------------*/
/* pxDelayedTaskList and pxOverflowDelayedTaskList are switched when the tick
- * count overflows. */
-#define taskSWITCH_DELAYED_LISTS() \
- { \
- List_t * pxTemp; \
- \
- /* The delayed tasks list should be empty when the lists are switched. */ \
- configASSERT( ( listLIST_IS_EMPTY( pxDelayedTaskList ) ) ); \
- \
- pxTemp = pxDelayedTaskList; \
- pxDelayedTaskList = pxOverflowDelayedTaskList; \
- pxOverflowDelayedTaskList = pxTemp; \
- xNumOfOverflows++; \
- prvResetNextTaskUnblockTime(); \
- }
+count overflows. */
+#define taskSWITCH_DELAYED_LISTS() \
+{ \
+ List_t *pxTemp; \
+ \
+ /* The delayed tasks list should be empty when the lists are switched. */ \
+ configASSERT( ( listLIST_IS_EMPTY( pxDelayedTaskList ) ) ); \
+ \
+ pxTemp = pxDelayedTaskList; \
+ pxDelayedTaskList = pxOverflowDelayedTaskList; \
+ pxOverflowDelayedTaskList = pxTemp; \
+ xNumOfOverflows++; \
+ prvResetNextTaskUnblockTime(); \
+}
/*-----------------------------------------------------------*/
@@ -221,33 +218,33 @@
* Place the task represented by pxTCB into the appropriate ready list for
* the task. It is inserted at the end of the list.
*/
-#define prvAddTaskToReadyList( pxTCB ) \
- traceMOVED_TASK_TO_READY_STATE( pxTCB ); \
- taskRECORD_READY_PRIORITY( ( pxTCB )->uxPriority ); \
- listINSERT_END( &( pxReadyTasksLists[ ( pxTCB )->uxPriority ] ), &( ( pxTCB )->xStateListItem ) ); \
- tracePOST_MOVED_TASK_TO_READY_STATE( pxTCB )
+#define prvAddTaskToReadyList( pxTCB ) \
+ traceMOVED_TASK_TO_READY_STATE( pxTCB ); \
+ taskRECORD_READY_PRIORITY( ( pxTCB )->uxPriority ); \
+ vListInsertEnd( &( pxReadyTasksLists[ ( pxTCB )->uxPriority ] ), &( ( pxTCB )->xStateListItem ) ); \
+ tracePOST_MOVED_TASK_TO_READY_STATE( pxTCB )
/*-----------------------------------------------------------*/
/*
- * Several functions take a TaskHandle_t parameter that can optionally be NULL,
+ * Several functions take an TaskHandle_t parameter that can optionally be NULL,
* where NULL is used to indicate that the handle of the currently executing
* task should be used in place of the parameter. This macro simply checks to
* see if the parameter is NULL and returns a pointer to the appropriate TCB.
*/
-#define prvGetTCBFromHandle( pxHandle ) ( ( ( pxHandle ) == NULL ) ? pxCurrentTCB : ( pxHandle ) )
+#define prvGetTCBFromHandle( pxHandle ) ( ( ( pxHandle ) == NULL ) ? pxCurrentTCB : ( pxHandle ) )
/* The item value of the event list item is normally used to hold the priority
- * of the task to which it belongs (coded to allow it to be held in reverse
- * priority order). However, it is occasionally borrowed for other purposes. It
- * is important its value is not updated due to a task priority change while it is
- * being used for another purpose. The following bit definition is used to inform
- * the scheduler that the value should not be changed - in which case it is the
- * responsibility of whichever module is using the value to ensure it gets set back
- * to its original value when it is released. */
-#if ( configUSE_16_BIT_TICKS == 1 )
- #define taskEVENT_LIST_ITEM_VALUE_IN_USE 0x8000U
+of the task to which it belongs (coded to allow it to be held in reverse
+priority order). However, it is occasionally borrowed for other purposes. It
+is important its value is not updated due to a task priority change while it is
+being used for another purpose. The following bit definition is used to inform
+the scheduler that the value should not be changed - in which case it is the
+responsibility of whichever module is using the value to ensure it gets set back
+to its original value when it is released. */
+#if( configUSE_16_BIT_TICKS == 1 )
+ #define taskEVENT_LIST_ITEM_VALUE_IN_USE 0x8000U
#else
- #define taskEVENT_LIST_ITEM_VALUE_IN_USE 0x80000000UL
+ #define taskEVENT_LIST_ITEM_VALUE_IN_USE 0x80000000UL
#endif
/*
@@ -255,146 +252,155 @@
* and stores task state information, including a pointer to the task's context
* (the task's run time environment, including register values)
*/
-typedef struct tskTaskControlBlock /* The old naming convention is used to prevent breaking kernel aware debuggers. */
+typedef struct tskTaskControlBlock /* The old naming convention is used to prevent breaking kernel aware debuggers. */
{
- volatile StackType_t * pxTopOfStack; /*< Points to the location of the last item placed on the tasks stack. THIS MUST BE THE FIRST MEMBER OF THE TCB STRUCT. */
+ volatile StackType_t *pxTopOfStack; /*< Points to the location of the last item placed on the tasks stack. THIS MUST BE THE FIRST MEMBER OF THE TCB STRUCT. */
- #if ( portUSING_MPU_WRAPPERS == 1 )
- xMPU_SETTINGS xMPUSettings; /*< The MPU settings are defined as part of the port layer. THIS MUST BE THE SECOND MEMBER OF THE TCB STRUCT. */
- #endif
+ #if ( portUSING_MPU_WRAPPERS == 1 )
+ xMPU_SETTINGS xMPUSettings; /*< The MPU settings are defined as part of the port layer. THIS MUST BE THE SECOND MEMBER OF THE TCB STRUCT. */
+ #endif
- ListItem_t xStateListItem; /*< The list that the state list item of a task is reference from denotes the state of that task (Ready, Blocked, Suspended ). */
- ListItem_t xEventListItem; /*< Used to reference a task from an event list. */
- UBaseType_t uxPriority; /*< The priority of the task. 0 is the lowest priority. */
- StackType_t * pxStack; /*< Points to the start of the stack. */
- configSTACK_DEPTH_TYPE xStackDepth; /* AML add the member and add dummy member to xSTATIC_TCB in FreeRTOS.h */
- char pcTaskName[ configMAX_TASK_NAME_LEN ]; /*< Descriptive name given to the task when created. Facilitates debugging only. */ /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+ ListItem_t xStateListItem; /*< The list that the state list item of a task is reference from denotes the state of that task (Ready, Blocked, Suspended ). */
+ ListItem_t xEventListItem; /*< Used to reference a task from an event list. */
+ UBaseType_t uxPriority; /*< The priority of the task. 0 is the lowest priority. */
+ StackType_t *pxStack; /*< Points to the start of the stack. */
+ StackType_t uStackDepth;
+ char pcTaskName[ configMAX_TASK_NAME_LEN ];/*< Descriptive name given to the task when created. Facilitates debugging only. */ /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
- #if ( ( portSTACK_GROWTH > 0 ) || ( configRECORD_STACK_HIGH_ADDRESS == 1 ) )
- StackType_t * pxEndOfStack; /*< Points to the highest valid address for the stack. */
- #endif
+ #if ( ( portSTACK_GROWTH > 0 ) || ( configRECORD_STACK_HIGH_ADDRESS == 1 ) )
+ StackType_t *pxEndOfStack; /*< Points to the highest valid address for the stack. */
+ #endif
- #if ( portCRITICAL_NESTING_IN_TCB == 1 )
- UBaseType_t uxCriticalNesting; /*< Holds the critical section nesting depth for ports that do not maintain their own count in the port layer. */
- #endif
+ #if ( portCRITICAL_NESTING_IN_TCB == 1 )
+ UBaseType_t uxCriticalNesting; /*< Holds the critical section nesting depth for ports that do not maintain their own count in the port layer. */
+ #endif
- #if ( configUSE_TRACE_FACILITY == 1 )
- UBaseType_t uxTCBNumber; /*< Stores a number that increments each time a TCB is created. It allows debuggers to determine when a task has been deleted and then recreated. */
- UBaseType_t uxTaskNumber; /*< Stores a number specifically for use by third party trace code. */
- #endif
+ #if ( configUSE_TRACE_FACILITY == 1 )
+ UBaseType_t uxTCBNumber; /*< Stores a number that increments each time a TCB is created. It allows debuggers to determine when a task has been deleted and then recreated. */
+ UBaseType_t uxTaskNumber; /*< Stores a number specifically for use by third party trace code. */
+ #endif
- #if ( configUSE_MUTEXES == 1 )
- UBaseType_t uxBasePriority; /*< The priority last assigned to the task - used by the priority inheritance mechanism. */
- UBaseType_t uxMutexesHeld;
- #endif
+ #if ( configUSE_MUTEXES == 1 )
+ UBaseType_t uxBasePriority; /*< The priority last assigned to the task - used by the priority inheritance mechanism. */
+ UBaseType_t uxMutexesHeld;
+ #endif
- #if ( configUSE_APPLICATION_TASK_TAG == 1 )
- TaskHookFunction_t pxTaskTag;
- #endif
+ #if ( configUSE_APPLICATION_TASK_TAG == 1 )
+ TaskHookFunction_t pxTaskTag;
+ #endif
- #if ( configNUM_THREAD_LOCAL_STORAGE_POINTERS > 0 )
- void * pvThreadLocalStoragePointers[ configNUM_THREAD_LOCAL_STORAGE_POINTERS ];
- #endif
+ #if( configNUM_THREAD_LOCAL_STORAGE_POINTERS > 0 )
+ void *pvThreadLocalStoragePointers[ configNUM_THREAD_LOCAL_STORAGE_POINTERS ];
+ #endif
- #if ( configGENERATE_RUN_TIME_STATS == 1 )
- configRUN_TIME_COUNTER_TYPE ulRunTimeCounter; /*< Stores the amount of time the task has spent in the Running state. */
- #endif
+ #if( configGENERATE_RUN_TIME_STATS == 1 )
+ uint32_t ulRunTimeCounter; /*< Stores the amount of time the task has spent in the Running state. */
+ #endif
- #if ( ( configUSE_NEWLIB_REENTRANT == 1 ) || ( configUSE_C_RUNTIME_TLS_SUPPORT == 1 ) )
- configTLS_BLOCK_TYPE xTLSBlock; /*< Memory block used as Thread Local Storage (TLS) Block for the task. */
- #endif
+ #if ( configUSE_NEWLIB_REENTRANT == 1 )
+ /* Allocate a Newlib reent structure that is specific to this task.
+ Note Newlib support has been included by popular demand, but is not
+ used by the FreeRTOS maintainers themselves. FreeRTOS is not
+ responsible for resulting newlib operation. User must be familiar with
+ newlib and must provide system-wide implementations of the necessary
+ stubs. Be warned that (at the time of writing) the current newlib design
+ implements a system-wide malloc() that must be provided with locks. */
+ struct _reent xNewLib_reent;
+ #endif
- #if ( configUSE_TASK_NOTIFICATIONS == 1 )
- volatile uint32_t ulNotifiedValue[ configTASK_NOTIFICATION_ARRAY_ENTRIES ];
- volatile uint8_t ucNotifyState[ configTASK_NOTIFICATION_ARRAY_ENTRIES ];
- #endif
+ #if( configUSE_TASK_NOTIFICATIONS == 1 )
+ volatile uint32_t ulNotifiedValue;
+ volatile uint8_t ucNotifyState;
+ #endif
- /* See the comments in FreeRTOS.h with the definition of
- * tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE. */
- #if ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
- uint8_t ucStaticallyAllocated; /*< Set to pdTRUE if the task is a statically allocated to ensure no attempt is made to free the memory. */
- #endif
+ /* See the comments in FreeRTOS.h with the definition of
+ tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE. */
+ #if( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
+ uint8_t ucStaticallyAllocated; /*< Set to pdTRUE if the task is a statically allocated to ensure no attempt is made to free the memory. */
+ #endif
- #if ( INCLUDE_xTaskAbortDelay == 1 )
- uint8_t ucDelayAborted;
- #endif
+ #if( INCLUDE_xTaskAbortDelay == 1 )
+ uint8_t ucDelayAborted;
+ #endif
- #if ( configUSE_POSIX_ERRNO == 1 )
- int iTaskErrno;
- #endif
+ #if( configUSE_POSIX_ERRNO == 1 )
+ int iTaskErrno;
+ #endif
+ #if ( configUSE_TASK_START_HOOK == 1 )
+ void *pxTaskFun;
+ void *pxTaskPara;
+ #endif
+ #if ENABLE_KASAN
+ int kasan_depth;
+ #endif
} tskTCB;
/* The old tskTCB name is maintained above then typedefed to the new TCB_t name
- * below to enable the use of older kernel aware debuggers. */
+below to enable the use of older kernel aware debuggers. */
typedef tskTCB TCB_t;
/*lint -save -e956 A manual analysis and inspection has been used to determine
- * which static variables must be declared volatile. */
-portDONT_DISCARD PRIVILEGED_DATA TCB_t * volatile pxCurrentTCB = NULL;
+which static variables must be declared volatile. */
+PRIVILEGED_DATA TCB_t * volatile pxCurrentTCB = NULL;
/* Lists for ready and blocked tasks. --------------------
- * xDelayedTaskList1 and xDelayedTaskList2 could be moved to function scope but
- * doing so breaks some kernel aware debuggers and debuggers that rely on removing
- * the static qualifier. */
-PRIVILEGED_DATA static List_t pxReadyTasksLists[ configMAX_PRIORITIES ]; /*< Prioritised ready tasks. */
-PRIVILEGED_DATA static List_t xDelayedTaskList1; /*< Delayed tasks. */
-PRIVILEGED_DATA static List_t xDelayedTaskList2; /*< Delayed tasks (two lists are used - one for delays that have overflowed the current tick count. */
-PRIVILEGED_DATA static List_t * volatile pxDelayedTaskList; /*< Points to the delayed task list currently being used. */
-PRIVILEGED_DATA static List_t * volatile pxOverflowDelayedTaskList; /*< Points to the delayed task list currently being used to hold tasks that have overflowed the current tick count. */
-PRIVILEGED_DATA static List_t xPendingReadyList; /*< Tasks that have been readied while the scheduler was suspended. They will be moved to the ready list when the scheduler is resumed. */
+xDelayedTaskList1 and xDelayedTaskList2 could be move to function scople but
+doing so breaks some kernel aware debuggers and debuggers that rely on removing
+the static qualifier. */
+PRIVILEGED_DATA static List_t pxReadyTasksLists[ configMAX_PRIORITIES ];/*< Prioritised ready tasks. */
+PRIVILEGED_DATA static List_t xDelayedTaskList1; /*< Delayed tasks. */
+PRIVILEGED_DATA static List_t xDelayedTaskList2; /*< Delayed tasks (two lists are used - one for delays that have overflowed the current tick count. */
+PRIVILEGED_DATA static List_t * volatile pxDelayedTaskList; /*< Points to the delayed task list currently being used. */
+PRIVILEGED_DATA static List_t * volatile pxOverflowDelayedTaskList; /*< Points to the delayed task list currently being used to hold tasks that have overflowed the current tick count. */
+PRIVILEGED_DATA static List_t xPendingReadyList; /*< Tasks that have been readied while the scheduler was suspended. They will be moved to the ready list when the scheduler is resumed. */
-#if ( INCLUDE_vTaskDelete == 1 )
+#if( INCLUDE_vTaskDelete == 1 )
- PRIVILEGED_DATA static List_t xTasksWaitingTermination; /*< Tasks that have been deleted - but their memory not yet freed. */
- PRIVILEGED_DATA static volatile UBaseType_t uxDeletedTasksWaitingCleanUp = ( UBaseType_t ) 0U;
+ PRIVILEGED_DATA static List_t xTasksWaitingTermination; /*< Tasks that have been deleted - but their memory not yet freed. */
+ PRIVILEGED_DATA static volatile UBaseType_t uxDeletedTasksWaitingCleanUp = ( UBaseType_t ) 0U;
#endif
#if ( INCLUDE_vTaskSuspend == 1 )
- PRIVILEGED_DATA static List_t xSuspendedTaskList; /*< Tasks that are currently suspended. */
+ PRIVILEGED_DATA static List_t xSuspendedTaskList; /*< Tasks that are currently suspended. */
#endif
/* Global POSIX errno. Its value is changed upon context switching to match
- * the errno of the currently running task. */
+the errno of the currently running task. */
#if ( configUSE_POSIX_ERRNO == 1 )
- int FreeRTOS_errno = 0;
+ int FreeRTOS_errno = 0;
#endif
/* Other file private variables. --------------------------------*/
-PRIVILEGED_DATA static volatile UBaseType_t uxCurrentNumberOfTasks = ( UBaseType_t ) 0U;
-PRIVILEGED_DATA static volatile TickType_t xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
-PRIVILEGED_DATA static volatile UBaseType_t uxTopReadyPriority = tskIDLE_PRIORITY;
-PRIVILEGED_DATA static volatile BaseType_t xSchedulerRunning = pdFALSE;
-PRIVILEGED_DATA static volatile TickType_t xPendedTicks = ( TickType_t ) 0U;
-PRIVILEGED_DATA static volatile BaseType_t xYieldPending = pdFALSE;
-PRIVILEGED_DATA static volatile BaseType_t xNumOfOverflows = ( BaseType_t ) 0;
-PRIVILEGED_DATA static UBaseType_t uxTaskNumber = ( UBaseType_t ) 0U;
-PRIVILEGED_DATA static volatile TickType_t xNextTaskUnblockTime = ( TickType_t ) 0U; /* Initialised to portMAX_DELAY before the scheduler starts. */
-PRIVILEGED_DATA static TaskHandle_t xIdleTaskHandle = NULL; /*< Holds the handle of the idle task. The idle task is created automatically when the scheduler is started. */
-
-/* Improve support for OpenOCD. The kernel tracks Ready tasks via priority lists.
- * For tracking the state of remote threads, OpenOCD uses uxTopUsedPriority
- * to determine the number of priority lists to read back from the remote target. */
-const volatile UBaseType_t uxTopUsedPriority = configMAX_PRIORITIES - 1U;
+PRIVILEGED_DATA static volatile UBaseType_t uxCurrentNumberOfTasks = ( UBaseType_t ) 0U;
+PRIVILEGED_DATA static volatile TickType_t xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
+PRIVILEGED_DATA static volatile UBaseType_t uxTopReadyPriority = tskIDLE_PRIORITY;
+PRIVILEGED_DATA static volatile BaseType_t xSchedulerRunning = pdFALSE;
+PRIVILEGED_DATA static volatile UBaseType_t uxPendedTicks = ( UBaseType_t ) 0U;
+PRIVILEGED_DATA static volatile BaseType_t xYieldPending = pdFALSE;
+PRIVILEGED_DATA static volatile BaseType_t xNumOfOverflows = ( BaseType_t ) 0;
+PRIVILEGED_DATA static UBaseType_t uxTaskNumber = ( UBaseType_t ) 0U;
+PRIVILEGED_DATA static volatile TickType_t xNextTaskUnblockTime = ( TickType_t ) 0U; /* Initialised to portMAX_DELAY before the scheduler starts. */
+PRIVILEGED_DATA static TaskHandle_t xIdleTaskHandle = NULL; /*< Holds the handle of the idle task. The idle task is created automatically when the scheduler is started. */
/* Context switches are held pending while the scheduler is suspended. Also,
- * interrupts must not manipulate the xStateListItem of a TCB, or any of the
- * lists the xStateListItem can be referenced from, if the scheduler is suspended.
- * If an interrupt needs to unblock a task while the scheduler is suspended then it
- * moves the task's event list item into the xPendingReadyList, ready for the
- * kernel to move the task from the pending ready list into the real ready list
- * when the scheduler is unsuspended. The pending ready list itself can only be
- * accessed from a critical section. */
-PRIVILEGED_DATA static volatile UBaseType_t uxSchedulerSuspended = ( UBaseType_t ) pdFALSE;
+interrupts must not manipulate the xStateListItem of a TCB, or any of the
+lists the xStateListItem can be referenced from, if the scheduler is suspended.
+If an interrupt needs to unblock a task while the scheduler is suspended then it
+moves the task's event list item into the xPendingReadyList, ready for the
+kernel to move the task from the pending ready list into the real ready list
+when the scheduler is unsuspended. The pending ready list itself can only be
+accessed from a critical section. */
+PRIVILEGED_DATA static volatile UBaseType_t uxSchedulerSuspended = ( UBaseType_t ) pdFALSE;
#if ( configGENERATE_RUN_TIME_STATS == 1 )
-/* Do not move these variables to function scope as doing so prevents the
- * code working with debuggers that need to remove the static qualifier. */
- PRIVILEGED_DATA static configRUN_TIME_COUNTER_TYPE ulTaskSwitchedInTime = 0UL; /*< Holds the value of a timer/counter the last time a task was switched in. */
- PRIVILEGED_DATA static volatile configRUN_TIME_COUNTER_TYPE ulTotalRunTime = 0UL; /*< Holds the total amount of execution time as defined by the run time counter clock. */
+ /* Do not move these variables to function scope as doing so prevents the
+ code working with debuggers that need to remove the static qualifier. */
+ PRIVILEGED_DATA static uint32_t ulTaskSwitchedInTime = 0UL; /*< Holds the value of a timer/counter the last time a task was switched in. */
+ PRIVILEGED_DATA static uint32_t ulTotalRunTime = 0UL; /*< Holds the total amount of execution time as defined by the run time counter clock. */
#endif
@@ -402,6 +408,25 @@
/*-----------------------------------------------------------*/
+/* Callback function prototypes. --------------------------*/
+#if( configCHECK_FOR_STACK_OVERFLOW > 0 )
+
+ extern void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName );
+
+#endif
+
+#if( configUSE_TICK_HOOK > 0 )
+
+ extern void vApplicationTickHook( void ); /*lint !e526 Symbol not defined as it is an application callback. */
+
+#endif
+
+#if( configSUPPORT_STATIC_ALLOCATION == 1 )
+
+ extern void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, configSTACK_DEPTH_TYPE *pulIdleTaskStackSize ); /*lint !e526 Symbol not defined as it is an application callback. */
+
+#endif
+
/* File private functions. --------------------------------*/
/**
@@ -411,7 +436,7 @@
*/
#if ( INCLUDE_vTaskSuspend == 1 )
- static BaseType_t prvTaskIsTaskSuspended( const TaskHandle_t xTask ) PRIVILEGED_FUNCTION;
+ static BaseType_t prvTaskIsTaskSuspended( const TaskHandle_t xTask ) PRIVILEGED_FUNCTION;
#endif /* INCLUDE_vTaskSuspend */
@@ -432,7 +457,7 @@
* void prvIdleTask( void *pvParameters );
*
*/
-static portTASK_FUNCTION_PROTO( prvIdleTask, pvParameters ) PRIVILEGED_FUNCTION;
+static portTASK_FUNCTION_PROTO( prvIdleTask, pvParameters );
/*
* Utility to free all memory allocated by the scheduler to hold a TCB,
@@ -443,7 +468,7 @@
*/
#if ( INCLUDE_vTaskDelete == 1 )
- static void prvDeleteTCB( TCB_t * pxTCB ) PRIVILEGED_FUNCTION;
+ static void prvDeleteTCB( TCB_t *pxTCB ) PRIVILEGED_FUNCTION;
#endif
@@ -458,8 +483,7 @@
* The currently executing task is entering the Blocked state. Add the task to
* either the current or the overflow delayed task list.
*/
-static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait,
- const BaseType_t xCanBlockIndefinitely ) PRIVILEGED_FUNCTION;
+static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait, const BaseType_t xCanBlockIndefinitely ) PRIVILEGED_FUNCTION;
/*
* Fills an TaskStatus_t structure with information on each task that is
@@ -471,9 +495,7 @@
*/
#if ( configUSE_TRACE_FACILITY == 1 )
- static UBaseType_t prvListTasksWithinSingleList( TaskStatus_t * pxTaskStatusArray,
- List_t * pxList,
- eTaskState eState ) PRIVILEGED_FUNCTION;
+ static UBaseType_t prvListTasksWithinSingleList( TaskStatus_t *pxTaskStatusArray, List_t *pxList, eTaskState eState ) PRIVILEGED_FUNCTION;
#endif
@@ -483,8 +505,7 @@
*/
#if ( INCLUDE_xTaskGetHandle == 1 )
- static TCB_t * prvSearchForNameWithinSingleList( List_t * pxList,
- const char pcNameToQuery[] ) PRIVILEGED_FUNCTION;
+ static TCB_t *prvSearchForNameWithinSingleList( List_t *pxList, const char pcNameToQuery[] ) PRIVILEGED_FUNCTION;
#endif
@@ -495,7 +516,7 @@
*/
#if ( ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark2 == 1 ) )
- static configSTACK_DEPTH_TYPE prvTaskCheckFreeStackSpace( const uint8_t * pucStackByte ) PRIVILEGED_FUNCTION;
+ static configSTACK_DEPTH_TYPE prvTaskCheckFreeStackSpace( const uint8_t * pucStackByte ) PRIVILEGED_FUNCTION;
#endif
@@ -510,7 +531,7 @@
*/
#if ( configUSE_TICKLESS_IDLE != 0 )
- static TickType_t prvGetExpectedIdleTime( void ) PRIVILEGED_FUNCTION;
+ static TickType_t prvGetExpectedIdleTime( void ) PRIVILEGED_FUNCTION;
#endif
@@ -518,16 +539,15 @@
* Set xNextTaskUnblockTime to the time at which the next Blocked state task
* will exit the Blocked state.
*/
-static void prvResetNextTaskUnblockTime( void ) PRIVILEGED_FUNCTION;
+static void prvResetNextTaskUnblockTime( void );
-#if ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 )
+#if ( ( configUSE_TRACE_FACILITY == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) )
-/*
- * Helper function used to pad task names with spaces when printing out
- * human readable tables of task information.
- */
- static char * prvWriteNameToBuffer( char * pcBuffer,
- const char * pcTaskName ) PRIVILEGED_FUNCTION;
+ /*
+ * Helper function used to pad task names with spaces when printing out
+ * human readable tables of task information.
+ */
+ static char *prvWriteNameToBuffer( char *pcBuffer, const char *pcTaskName ) PRIVILEGED_FUNCTION;
#endif
@@ -535,20 +555,20 @@
* Called after a Task_t structure has been allocated either statically or
* dynamically to fill in the structure's members.
*/
-static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
- const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
- const configSTACK_DEPTH_TYPE ulStackDepth,
- void * const pvParameters,
- UBaseType_t uxPriority,
- TaskHandle_t * const pxCreatedTask,
- TCB_t * pxNewTCB,
- const MemoryRegion_t * const xRegions ) PRIVILEGED_FUNCTION;
+static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
+ const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+ const uint32_t ulStackDepth,
+ void * pvParameters,
+ UBaseType_t uxPriority,
+ TaskHandle_t * const pxCreatedTask,
+ TCB_t *pxNewTCB,
+ const MemoryRegion_t * const xRegions ) PRIVILEGED_FUNCTION;
/*
* Called after a new task has been created and initialised to place the task
* under the control of the scheduler.
*/
-static void prvAddNewTaskToReadyList( TCB_t * pxNewTCB ) PRIVILEGED_FUNCTION;
+static void prvAddNewTaskToReadyList( TCB_t *pxNewTCB ) PRIVILEGED_FUNCTION;
/*
* freertos_tasks_c_additions_init() should only be called if the user definable
@@ -557,1324 +577,1354 @@
*/
#ifdef FREERTOS_TASKS_C_ADDITIONS_INIT
- static void freertos_tasks_c_additions_init( void ) PRIVILEGED_FUNCTION;
+ static void freertos_tasks_c_additions_init( void ) PRIVILEGED_FUNCTION;
#endif
/*-----------------------------------------------------------*/
-#if ( configSUPPORT_STATIC_ALLOCATION == 1 )
+#if( configSUPPORT_STATIC_ALLOCATION == 1 )
- TaskHandle_t xTaskCreateStatic( TaskFunction_t pxTaskCode,
- const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
- const configSTACK_DEPTH_TYPE ulStackDepth,
- void * const pvParameters,
- UBaseType_t uxPriority,
- StackType_t * const puxStackBuffer,
- StaticTask_t * const pxTaskBuffer )
- {
- TCB_t * pxNewTCB;
- TaskHandle_t xReturn;
+ TaskHandle_t xTaskCreateStatic( TaskFunction_t pxTaskCode,
+ const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+ const uint32_t ulStackDepth,
+ void * const pvParameters,
+ UBaseType_t uxPriority,
+ StackType_t * const puxStackBuffer,
+ StaticTask_t * const pxTaskBuffer )
+ {
+ TCB_t *pxNewTCB;
+ TaskHandle_t xReturn;
- configASSERT( puxStackBuffer != NULL );
- configASSERT( pxTaskBuffer != NULL );
+ configASSERT( puxStackBuffer != NULL );
+ configASSERT( pxTaskBuffer != NULL );
- #if ( configASSERT_DEFINED == 1 )
- {
- /* Sanity check that the size of the structure used to declare a
- * variable of type StaticTask_t equals the size of the real task
- * structure. */
- volatile size_t xSize = sizeof( StaticTask_t );
- configASSERT( xSize == sizeof( TCB_t ) );
- ( void ) xSize; /* Prevent lint warning when configASSERT() is not used. */
- }
- #endif /* configASSERT_DEFINED */
+ #if( configASSERT_DEFINED == 1 )
+ {
+ /* Sanity check that the size of the structure used to declare a
+ variable of type StaticTask_t equals the size of the real task
+ structure. */
+ volatile size_t xSize = sizeof( StaticTask_t );
+ configASSERT( xSize == sizeof( TCB_t ) );
+ ( void ) xSize; /* Prevent lint warning when configASSERT() is not used. */
+ }
+ #endif /* configASSERT_DEFINED */
- if( ( pxTaskBuffer != NULL ) && ( puxStackBuffer != NULL ) )
- {
- /* The memory used for the task's TCB and stack are passed into this
- * function - use them. */
- pxNewTCB = ( TCB_t * ) pxTaskBuffer; /*lint !e740 !e9087 Unusual cast is ok as the structures are designed to have the same alignment, and the size is checked by an assert. */
- memset( ( void * ) pxNewTCB, 0x00, sizeof( TCB_t ) );
- pxNewTCB->pxStack = ( StackType_t * ) puxStackBuffer;
- #if ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
- {
- /* Tasks can be created statically or dynamically, so note this
- * task was created statically in case the task is later deleted. */
- pxNewTCB->ucStaticallyAllocated = tskSTATICALLY_ALLOCATED_STACK_AND_TCB;
- }
- #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
+ if( ( pxTaskBuffer != NULL ) && ( puxStackBuffer != NULL ) )
+ {
+ /* The memory used for the task's TCB and stack are passed into this
+ function - use them. */
+ pxNewTCB = ( TCB_t * ) pxTaskBuffer; /*lint !e740 !e9087 Unusual cast is ok as the structures are designed to have the same alignment, and the size is checked by an assert. */
+ pxNewTCB->pxStack = ( StackType_t * ) puxStackBuffer;
- prvInitialiseNewTask( pxTaskCode, pcName, ulStackDepth, pvParameters, uxPriority, &xReturn, pxNewTCB, NULL );
- prvAddNewTaskToReadyList( pxNewTCB );
- }
- else
- {
- xReturn = NULL;
- }
+ #if( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
+ {
+ /* Tasks can be created statically or dynamically, so note this
+ task was created statically in case the task is later deleted. */
+ pxNewTCB->ucStaticallyAllocated = tskSTATICALLY_ALLOCATED_STACK_AND_TCB;
+ }
+ #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
- return xReturn;
- }
+ prvInitialiseNewTask( pxTaskCode, pcName, ulStackDepth, pvParameters, uxPriority, &xReturn, pxNewTCB, NULL );
+ prvAddNewTaskToReadyList( pxNewTCB );
+ }
+ else
+ {
+ xReturn = NULL;
+ }
+
+ return xReturn;
+ }
#endif /* SUPPORT_STATIC_ALLOCATION */
/*-----------------------------------------------------------*/
-#if ( ( portUSING_MPU_WRAPPERS == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) )
+#if( ( portUSING_MPU_WRAPPERS == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) )
- BaseType_t xTaskCreateRestrictedStatic( const TaskParameters_t * const pxTaskDefinition,
- TaskHandle_t * pxCreatedTask )
- {
- TCB_t * pxNewTCB;
- BaseType_t xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;
+ BaseType_t xTaskCreateRestrictedStatic( const TaskParameters_t * const pxTaskDefinition, TaskHandle_t *pxCreatedTask )
+ {
+ TCB_t *pxNewTCB;
+ BaseType_t xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;
- configASSERT( pxTaskDefinition->puxStackBuffer != NULL );
- configASSERT( pxTaskDefinition->pxTaskBuffer != NULL );
+ configASSERT( pxTaskDefinition->puxStackBuffer != NULL );
+ configASSERT( pxTaskDefinition->pxTaskBuffer != NULL );
- if( ( pxTaskDefinition->puxStackBuffer != NULL ) && ( pxTaskDefinition->pxTaskBuffer != NULL ) )
- {
- /* Allocate space for the TCB. Where the memory comes from depends
- * on the implementation of the port malloc function and whether or
- * not static allocation is being used. */
- pxNewTCB = ( TCB_t * ) pxTaskDefinition->pxTaskBuffer;
- memset( ( void * ) pxNewTCB, 0x00, sizeof( TCB_t ) );
+ if( ( pxTaskDefinition->puxStackBuffer != NULL ) && ( pxTaskDefinition->pxTaskBuffer != NULL ) )
+ {
+ /* Allocate space for the TCB. Where the memory comes from depends
+ on the implementation of the port malloc function and whether or
+ not static allocation is being used. */
+ pxNewTCB = ( TCB_t * ) pxTaskDefinition->pxTaskBuffer;
- /* Store the stack location in the TCB. */
- pxNewTCB->pxStack = pxTaskDefinition->puxStackBuffer;
+ /* Store the stack location in the TCB. */
+ pxNewTCB->pxStack = pxTaskDefinition->puxStackBuffer;
- #if ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 )
- {
- /* Tasks can be created statically or dynamically, so note this
- * task was created statically in case the task is later deleted. */
- pxNewTCB->ucStaticallyAllocated = tskSTATICALLY_ALLOCATED_STACK_AND_TCB;
- }
- #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
+ #if( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 )
+ {
+ /* Tasks can be created statically or dynamically, so note this
+ task was created statically in case the task is later deleted. */
+ pxNewTCB->ucStaticallyAllocated = tskSTATICALLY_ALLOCATED_STACK_AND_TCB;
+ }
+ #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
- prvInitialiseNewTask( pxTaskDefinition->pvTaskCode,
- pxTaskDefinition->pcName,
- ( configSTACK_DEPTH_TYPE ) pxTaskDefinition->usStackDepth,
- pxTaskDefinition->pvParameters,
- pxTaskDefinition->uxPriority,
- pxCreatedTask, pxNewTCB,
- pxTaskDefinition->xRegions );
+ prvInitialiseNewTask( pxTaskDefinition->pvTaskCode,
+ pxTaskDefinition->pcName,
+ ( uint32_t ) pxTaskDefinition->usStackDepth,
+ pxTaskDefinition->pvParameters,
+ pxTaskDefinition->uxPriority,
+ pxCreatedTask, pxNewTCB,
+ pxTaskDefinition->xRegions );
- prvAddNewTaskToReadyList( pxNewTCB );
- xReturn = pdPASS;
- }
+ prvAddNewTaskToReadyList( pxNewTCB );
+ xReturn = pdPASS;
+ }
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* ( portUSING_MPU_WRAPPERS == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
/*-----------------------------------------------------------*/
-#if ( ( portUSING_MPU_WRAPPERS == 1 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
+#if( ( portUSING_MPU_WRAPPERS == 1 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
- BaseType_t xTaskCreateRestricted( const TaskParameters_t * const pxTaskDefinition,
- TaskHandle_t * pxCreatedTask )
- {
- TCB_t * pxNewTCB;
- BaseType_t xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;
+ BaseType_t xTaskCreateRestricted( const TaskParameters_t * const pxTaskDefinition, TaskHandle_t *pxCreatedTask )
+ {
+ TCB_t *pxNewTCB;
+ BaseType_t xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;
- configASSERT( pxTaskDefinition->puxStackBuffer );
+ configASSERT( pxTaskDefinition->puxStackBuffer );
- if( pxTaskDefinition->puxStackBuffer != NULL )
- {
- /* Allocate space for the TCB. Where the memory comes from depends
- * on the implementation of the port malloc function and whether or
- * not static allocation is being used. */
- pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) );
+ if( pxTaskDefinition->puxStackBuffer != NULL )
+ {
+ /* Allocate space for the TCB. Where the memory comes from depends
+ on the implementation of the port malloc function and whether or
+ not static allocation is being used. */
+ pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) );
- if( pxNewTCB != NULL )
- {
- memset( ( void * ) pxNewTCB, 0x00, sizeof( TCB_t ) );
+ if( pxNewTCB != NULL )
+ {
+ /* Store the stack location in the TCB. */
+ pxNewTCB->pxStack = pxTaskDefinition->puxStackBuffer;
- /* Store the stack location in the TCB. */
- pxNewTCB->pxStack = pxTaskDefinition->puxStackBuffer;
+ #if( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 )
+ {
+ /* Tasks can be created statically or dynamically, so note
+ this task had a statically allocated stack in case it is
+ later deleted. The TCB was allocated dynamically. */
+ pxNewTCB->ucStaticallyAllocated = tskSTATICALLY_ALLOCATED_STACK_ONLY;
+ }
+ #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
- #if ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 )
- {
- /* Tasks can be created statically or dynamically, so note
- * this task had a statically allocated stack in case it is
- * later deleted. The TCB was allocated dynamically. */
- pxNewTCB->ucStaticallyAllocated = tskSTATICALLY_ALLOCATED_STACK_ONLY;
- }
- #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
+ prvInitialiseNewTask( pxTaskDefinition->pvTaskCode,
+ pxTaskDefinition->pcName,
+ ( uint32_t ) pxTaskDefinition->usStackDepth,
+ pxTaskDefinition->pvParameters,
+ pxTaskDefinition->uxPriority,
+ pxCreatedTask, pxNewTCB,
+ pxTaskDefinition->xRegions );
- prvInitialiseNewTask( pxTaskDefinition->pvTaskCode,
- pxTaskDefinition->pcName,
- ( configSTACK_DEPTH_TYPE ) pxTaskDefinition->usStackDepth,
- pxTaskDefinition->pvParameters,
- pxTaskDefinition->uxPriority,
- pxCreatedTask, pxNewTCB,
- pxTaskDefinition->xRegions );
+ prvAddNewTaskToReadyList( pxNewTCB );
+ xReturn = pdPASS;
+ }
+ }
- prvAddNewTaskToReadyList( pxNewTCB );
- xReturn = pdPASS;
- }
- }
-
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* portUSING_MPU_WRAPPERS */
/*-----------------------------------------------------------*/
-#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
+#if( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
- BaseType_t xTaskCreate( TaskFunction_t pxTaskCode,
- const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
- const configSTACK_DEPTH_TYPE usStackDepth,
- void * const pvParameters,
- UBaseType_t uxPriority,
- TaskHandle_t * const pxCreatedTask )
- {
- TCB_t * pxNewTCB;
- BaseType_t xReturn;
+ BaseType_t xTaskCreate( TaskFunction_t pxTaskCode,
+ const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+ const configSTACK_DEPTH_TYPE usStackDepth,
+ void * const pvParameters,
+ UBaseType_t uxPriority,
+ TaskHandle_t * const pxCreatedTask )
+ {
+ TCB_t *pxNewTCB;
+ BaseType_t xReturn;
- /* If the stack grows down then allocate the stack then the TCB so the stack
- * does not grow into the TCB. Likewise if the stack grows up then allocate
- * the TCB then the stack. */
- #if ( portSTACK_GROWTH > 0 )
- {
- /* Allocate space for the TCB. Where the memory comes from depends on
- * the implementation of the port malloc function and whether or not static
- * allocation is being used. */
- pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) );
- if( pxNewTCB != NULL )
- {
- memset( ( void * ) pxNewTCB, 0x00, sizeof( TCB_t ) );
+ /* If the stack grows down then allocate the stack then the TCB so the stack
+ does not grow into the TCB. Likewise if the stack grows up then allocate
+ the TCB then the stack. */
+ #if( portSTACK_GROWTH > 0 )
+ {
+ /* Allocate space for the TCB. Where the memory comes from depends on
+ the implementation of the port malloc function and whether or not static
+ allocation is being used. */
+ pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) );
- /* Allocate space for the stack used by the task being created.
- * The base of the stack memory stored in the TCB so the task can
- * be deleted later if required. */
- pxNewTCB->pxStack = ( StackType_t * ) pvPortMallocStack( ( ( ( size_t ) usStackDepth ) * sizeof( StackType_t ) ) ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ if( pxNewTCB != NULL )
+ {
+ /* Allocate space for the stack used by the task being created.
+ The base of the stack memory stored in the TCB so the task can
+ be deleted later if required. */
+ pxNewTCB->pxStack = ( StackType_t * ) pvPortMalloc( ( ( ( size_t ) usStackDepth ) * sizeof( StackType_t ) ) ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- if( pxNewTCB->pxStack == NULL )
- {
- /* Could not allocate the stack. Delete the allocated TCB. */
- vPortFree( pxNewTCB );
- pxNewTCB = NULL;
- }
- }
- }
- #else /* portSTACK_GROWTH */
- {
- StackType_t * pxStack;
+ if( pxNewTCB->pxStack == NULL )
+ {
+ /* Could not allocate the stack. Delete the allocated TCB. */
+ vPortFree( pxNewTCB );
+ pxNewTCB = NULL;
+ }
+ }
+ }
+ #else /* portSTACK_GROWTH */
+ {
+ StackType_t *pxStack;
- /* Allocate space for the stack used by the task being created. */
- pxStack = pvPortMallocStack( ( ( ( size_t ) usStackDepth ) * sizeof( StackType_t ) ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation is the stack. */
+ /* Allocate space for the stack used by the task being created. */
+ pxStack = pvPortMalloc( ( ( ( size_t ) usStackDepth ) * sizeof( StackType_t ) ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation is the stack. */
- if( pxStack != NULL )
- {
- /* Allocate space for the TCB. */
- pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) ); /*lint !e9087 !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack, and the first member of TCB_t is always a pointer to the task's stack. */
+ if( pxStack != NULL )
+ {
+ /* Allocate space for the TCB. */
+ pxNewTCB = ( TCB_t * ) pvPortMalloc( sizeof( TCB_t ) ); /*lint !e9087 !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack, and the first member of TCB_t is always a pointer to the task's stack. */
- if( pxNewTCB != NULL )
- {
- memset( ( void * ) pxNewTCB, 0x00, sizeof( TCB_t ) );
+ if( pxNewTCB != NULL )
+ {
+ /* Store the stack location in the TCB. */
+ pxNewTCB->pxStack = pxStack;
+ }
+ else
+ {
+ /* The stack cannot be used as the TCB was not created. Free
+ it again. */
+ vPortFree( pxStack );
+ }
+ }
+ else
+ {
+ pxNewTCB = NULL;
+ }
+ }
+ #endif /* portSTACK_GROWTH */
- /* Store the stack location in the TCB. */
- pxNewTCB->pxStack = pxStack;
- }
- else
- {
- /* The stack cannot be used as the TCB was not created. Free
- * it again. */
- vPortFreeStack( pxStack );
- }
- }
- else
- {
- pxNewTCB = NULL;
- }
- }
- #endif /* portSTACK_GROWTH */
+ if( pxNewTCB != NULL )
+ {
+ #if( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e9029 !e731 Macro has been consolidated for readability reasons. */
+ {
+ /* Tasks can be created statically or dynamically, so note this
+ task was created dynamically in case it is later deleted. */
+ pxNewTCB->ucStaticallyAllocated = tskDYNAMICALLY_ALLOCATED_STACK_AND_TCB;
+ }
+ #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
- if( pxNewTCB != NULL )
- {
- #if ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e9029 !e731 Macro has been consolidated for readability reasons. */
- {
- /* Tasks can be created statically or dynamically, so note this
- * task was created dynamically in case it is later deleted. */
- pxNewTCB->ucStaticallyAllocated = tskDYNAMICALLY_ALLOCATED_STACK_AND_TCB;
- }
- #endif /* tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE */
+ prvInitialiseNewTask( pxTaskCode, pcName, ( uint32_t ) usStackDepth, pvParameters, uxPriority, pxCreatedTask, pxNewTCB, NULL );
+ prvAddNewTaskToReadyList( pxNewTCB );
+ xReturn = pdPASS;
+ }
+ else
+ {
+ xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;
+ }
- prvInitialiseNewTask( pxTaskCode, pcName, ( configSTACK_DEPTH_TYPE ) usStackDepth, pvParameters, uxPriority, pxCreatedTask, pxNewTCB, NULL );
- prvAddNewTaskToReadyList( pxNewTCB );
- xReturn = pdPASS;
- }
- else
- {
- xReturn = errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY;
- }
-
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
/*-----------------------------------------------------------*/
-
-static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
- const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
- const configSTACK_DEPTH_TYPE ulStackDepth,
- void * const pvParameters,
- UBaseType_t uxPriority,
- TaskHandle_t * const pxCreatedTask,
- TCB_t * pxNewTCB,
- const MemoryRegion_t * const xRegions )
+#if ( configUSE_TASK_START_HOOK == 1 )
+static void prvTaskFunWrp( void *para)
{
- StackType_t * pxTopOfStack;
- UBaseType_t x;
+ TCB_t *pxNewTCB = (TCB_t *)para;
+ {
- #if ( portUSING_MPU_WRAPPERS == 1 )
- /* Should the task be created in privileged mode? */
- BaseType_t xRunPrivileged;
+ extern void vApplicationTaskStartHook( void );
+ vApplicationTaskStartHook();
+ }
+ ((TaskFunction_t)pxNewTCB->pxTaskFun)(pxNewTCB->pxTaskPara);
+}
+#endif
+static void prvInitialiseNewTask( TaskFunction_t pxTaskCode,
+ const char * const pcName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+ const uint32_t ulStackDepth,
+ void * pvParameters,
+ UBaseType_t uxPriority,
+ TaskHandle_t * const pxCreatedTask,
+ TCB_t *pxNewTCB,
+ const MemoryRegion_t * const xRegions )
+{
+StackType_t *pxTopOfStack;
+UBaseType_t x;
- if( ( uxPriority & portPRIVILEGE_BIT ) != 0U )
- {
- xRunPrivileged = pdTRUE;
- }
- else
- {
- xRunPrivileged = pdFALSE;
- }
- uxPriority &= ~portPRIVILEGE_BIT;
- #endif /* portUSING_MPU_WRAPPERS == 1 */
+ #if( portUSING_MPU_WRAPPERS == 1 )
+ /* Should the task be created in privileged mode? */
+ BaseType_t xRunPrivileged;
+ if( ( uxPriority & portPRIVILEGE_BIT ) != 0U )
+ {
+ xRunPrivileged = pdTRUE;
+ }
+ else
+ {
+ xRunPrivileged = pdFALSE;
+ }
+ uxPriority &= ~portPRIVILEGE_BIT;
+ #endif /* portUSING_MPU_WRAPPERS == 1 */
- pxNewTCB->xStackDepth = ulStackDepth;
+ #if ENABLE_KASAN
+ pxNewTCB->kasan_depth = 0;
+ #endif
- /* Avoid dependency on memset() if it is not required. */
- #if ( tskSET_NEW_STACKS_TO_KNOWN_VALUE == 1 )
- {
- /* Fill the stack with a known value to assist debugging. */
- ( void ) memset( pxNewTCB->pxStack, ( int ) tskSTACK_FILL_BYTE, ( size_t ) ulStackDepth * sizeof( StackType_t ) );
- }
- #endif /* tskSET_NEW_STACKS_TO_KNOWN_VALUE */
+ #if ( configUSE_TASK_START_HOOK == 1 )
+ pxNewTCB->pxTaskFun = pxTaskCode;
+ pxNewTCB->pxTaskPara = pvParameters;
+ pxTaskCode = prvTaskFunWrp;
+ pvParameters = pxNewTCB;
+ #endif
- /* Calculate the top of stack address. This depends on whether the stack
- * grows from high memory to low (as per the 80x86) or vice versa.
- * portSTACK_GROWTH is used to make the result positive or negative as required
- * by the port. */
- #if ( portSTACK_GROWTH < 0 )
- {
- pxTopOfStack = &( pxNewTCB->pxStack[ ulStackDepth - ( configSTACK_DEPTH_TYPE ) 1 ] );
- pxTopOfStack = ( StackType_t * ) ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) ); /*lint !e923 !e9033 !e9078 MISRA exception. Avoiding casts between pointers and integers is not practical. Size differences accounted for using portPOINTER_SIZE_TYPE type. Checked by assert(). */
+ pxNewTCB->uStackDepth = ulStackDepth;
+ /* Avoid dependency on memset() if it is not required. */
+ #if( tskSET_NEW_STACKS_TO_KNOWN_VALUE == 1 )
+ {
+ /* Fill the stack with a known value to assist debugging. */
+ ( void ) memset( pxNewTCB->pxStack, ( int ) tskSTACK_FILL_BYTE, ( size_t ) ulStackDepth * sizeof( StackType_t ) );
+ }
+ #endif /* tskSET_NEW_STACKS_TO_KNOWN_VALUE */
- /* Check the alignment of the calculated top of stack is correct. */
- configASSERT( ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack & ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );
+ /* Calculate the top of stack address. This depends on whether the stack
+ grows from high memory to low (as per the 80x86) or vice versa.
+ portSTACK_GROWTH is used to make the result positive or negative as required
+ by the port. */
+ #if( portSTACK_GROWTH < 0 )
+ {
+ pxTopOfStack = &( pxNewTCB->pxStack[ ulStackDepth - ( uint32_t ) 1 ] );
+ pxTopOfStack = ( StackType_t * ) ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) ); /*lint !e923 !e9033 !e9078 MISRA exception. Avoiding casts between pointers and integers is not practical. Size differences accounted for using portPOINTER_SIZE_TYPE type. Checked by assert(). */
- #if ( configRECORD_STACK_HIGH_ADDRESS == 1 )
- {
- /* Also record the stack's high address, which may assist
- * debugging. */
- pxNewTCB->pxEndOfStack = pxTopOfStack;
- }
- #endif /* configRECORD_STACK_HIGH_ADDRESS */
- }
- #else /* portSTACK_GROWTH */
- {
- pxTopOfStack = pxNewTCB->pxStack;
+ /* Check the alignment of the calculated top of stack is correct. */
+ configASSERT( ( ( ( portPOINTER_SIZE_TYPE ) pxTopOfStack & ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );
- /* Check the alignment of the stack buffer is correct. */
- configASSERT( ( ( ( portPOINTER_SIZE_TYPE ) pxNewTCB->pxStack & ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );
+ #if( configRECORD_STACK_HIGH_ADDRESS == 1 )
+ {
+ /* Also record the stack's high address, which may assist
+ debugging. */
+ pxNewTCB->pxEndOfStack = pxTopOfStack;
+ }
+ #endif /* configRECORD_STACK_HIGH_ADDRESS */
+ }
+ #else /* portSTACK_GROWTH */
+ {
+ pxTopOfStack = pxNewTCB->pxStack;
- /* The other extreme of the stack space is required if stack checking is
- * performed. */
- pxNewTCB->pxEndOfStack = pxNewTCB->pxStack + ( ulStackDepth - ( configSTACK_DEPTH_TYPE ) 1 );
- }
- #endif /* portSTACK_GROWTH */
+ /* Check the alignment of the stack buffer is correct. */
+ configASSERT( ( ( ( portPOINTER_SIZE_TYPE ) pxNewTCB->pxStack & ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) == 0UL ) );
- /* Store the task name in the TCB. */
- if( pcName != NULL )
- {
- for( x = ( UBaseType_t ) 0; x < ( UBaseType_t ) configMAX_TASK_NAME_LEN; x++ )
- {
- pxNewTCB->pcTaskName[ x ] = pcName[ x ];
+ /* The other extreme of the stack space is required if stack checking is
+ performed. */
+ pxNewTCB->pxEndOfStack = pxNewTCB->pxStack + ( ulStackDepth - ( uint32_t ) 1 );
+ }
+ #endif /* portSTACK_GROWTH */
- /* Don't copy all configMAX_TASK_NAME_LEN if the string is shorter than
- * configMAX_TASK_NAME_LEN characters just in case the memory after the
- * string is not accessible (extremely unlikely). */
- if( pcName[ x ] == ( char ) 0x00 )
- {
- break;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ /* Store the task name in the TCB. */
+ if( pcName != NULL )
+ {
+ for( x = ( UBaseType_t ) 0; x < ( UBaseType_t ) configMAX_TASK_NAME_LEN; x++ )
+ {
+ pxNewTCB->pcTaskName[ x ] = pcName[ x ];
- /* Ensure the name string is terminated in the case that the string length
- * was greater or equal to configMAX_TASK_NAME_LEN. */
- pxNewTCB->pcTaskName[ configMAX_TASK_NAME_LEN - 1 ] = '\0';
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Don't copy all configMAX_TASK_NAME_LEN if the string is shorter than
+ configMAX_TASK_NAME_LEN characters just in case the memory after the
+ string is not accessible (extremely unlikely). */
+ if( pcName[ x ] == ( char ) 0x00 )
+ {
+ break;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- /* This is used as an array index so must ensure it's not too large. */
- configASSERT( uxPriority < configMAX_PRIORITIES );
+ /* Ensure the name string is terminated in the case that the string length
+ was greater or equal to configMAX_TASK_NAME_LEN. */
+ pxNewTCB->pcTaskName[ configMAX_TASK_NAME_LEN - 1 ] = '\0';
+ }
+ else
+ {
+ /* The task has not been given a name, so just ensure there is a NULL
+ terminator when it is read out. */
+ pxNewTCB->pcTaskName[ 0 ] = 0x00;
+ }
- if( uxPriority >= ( UBaseType_t ) configMAX_PRIORITIES )
- {
- uxPriority = ( UBaseType_t ) configMAX_PRIORITIES - ( UBaseType_t ) 1U;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* This is used as an array index so must ensure it's not too large. First
+ remove the privilege bit if one is present. */
+ if( uxPriority >= ( UBaseType_t ) configMAX_PRIORITIES )
+ {
+ uxPriority = ( UBaseType_t ) configMAX_PRIORITIES - ( UBaseType_t ) 1U;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- pxNewTCB->uxPriority = uxPriority;
- #if ( configUSE_MUTEXES == 1 )
- {
- pxNewTCB->uxBasePriority = uxPriority;
- }
- #endif /* configUSE_MUTEXES */
+ pxNewTCB->uxPriority = uxPriority;
+ #if ( configUSE_MUTEXES == 1 )
+ {
+ pxNewTCB->uxBasePriority = uxPriority;
+ pxNewTCB->uxMutexesHeld = 0;
+ }
+ #endif /* configUSE_MUTEXES */
- vListInitialiseItem( &( pxNewTCB->xStateListItem ) );
- vListInitialiseItem( &( pxNewTCB->xEventListItem ) );
+ vListInitialiseItem( &( pxNewTCB->xStateListItem ) );
+ vListInitialiseItem( &( pxNewTCB->xEventListItem ) );
- /* Set the pxNewTCB as a link back from the ListItem_t. This is so we can get
- * back to the containing TCB from a generic item in a list. */
- listSET_LIST_ITEM_OWNER( &( pxNewTCB->xStateListItem ), pxNewTCB );
+ /* Set the pxNewTCB as a link back from the ListItem_t. This is so we can get
+ back to the containing TCB from a generic item in a list. */
+ listSET_LIST_ITEM_OWNER( &( pxNewTCB->xStateListItem ), pxNewTCB );
- /* Event lists are always in priority order. */
- listSET_LIST_ITEM_VALUE( &( pxNewTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) uxPriority ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- listSET_LIST_ITEM_OWNER( &( pxNewTCB->xEventListItem ), pxNewTCB );
+ /* Event lists are always in priority order. */
+ listSET_LIST_ITEM_VALUE( &( pxNewTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) uxPriority ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ listSET_LIST_ITEM_OWNER( &( pxNewTCB->xEventListItem ), pxNewTCB );
- #if ( portUSING_MPU_WRAPPERS == 1 )
- {
- vPortStoreTaskMPUSettings( &( pxNewTCB->xMPUSettings ), xRegions, pxNewTCB->pxStack, ulStackDepth );
- }
- #else
- {
- /* Avoid compiler warning about unreferenced parameter. */
- ( void ) xRegions;
- }
- #endif
+ #if ( portCRITICAL_NESTING_IN_TCB == 1 )
+ {
+ pxNewTCB->uxCriticalNesting = ( UBaseType_t ) 0U;
+ }
+ #endif /* portCRITICAL_NESTING_IN_TCB */
- #if ( ( configUSE_NEWLIB_REENTRANT == 1 ) || ( configUSE_C_RUNTIME_TLS_SUPPORT == 1 ) )
- {
- /* Allocate and initialize memory for the task's TLS Block. */
- configINIT_TLS_BLOCK( pxNewTCB->xTLSBlock );
- }
- #endif
+ #if ( configUSE_APPLICATION_TASK_TAG == 1 )
+ {
+ pxNewTCB->pxTaskTag = NULL;
+ }
+ #endif /* configUSE_APPLICATION_TASK_TAG */
- /* Initialize the TCB stack to look as if the task was already running,
- * but had been interrupted by the scheduler. The return address is set
- * to the start of the task function. Once the stack has been initialised
- * the top of stack variable is updated. */
- #if ( portUSING_MPU_WRAPPERS == 1 )
- {
- /* If the port has capability to detect stack overflow,
- * pass the stack end address to the stack initialization
- * function as well. */
- #if ( portHAS_STACK_OVERFLOW_CHECKING == 1 )
- {
- #if ( portSTACK_GROWTH < 0 )
- {
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxStack, pxTaskCode, pvParameters, xRunPrivileged );
- }
- #else /* portSTACK_GROWTH */
- {
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxEndOfStack, pxTaskCode, pvParameters, xRunPrivileged );
- }
- #endif /* portSTACK_GROWTH */
- }
- #else /* portHAS_STACK_OVERFLOW_CHECKING */
- {
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters, xRunPrivileged );
- }
- #endif /* portHAS_STACK_OVERFLOW_CHECKING */
- }
- #else /* portUSING_MPU_WRAPPERS */
- {
- /* If the port has capability to detect stack overflow,
- * pass the stack end address to the stack initialization
- * function as well. */
- #if ( portHAS_STACK_OVERFLOW_CHECKING == 1 )
- {
- #if ( portSTACK_GROWTH < 0 )
- {
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxStack, pxTaskCode, pvParameters );
- }
- #else /* portSTACK_GROWTH */
- {
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxEndOfStack, pxTaskCode, pvParameters );
- }
- #endif /* portSTACK_GROWTH */
- }
- #else /* portHAS_STACK_OVERFLOW_CHECKING */
- {
- pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters );
- }
- #endif /* portHAS_STACK_OVERFLOW_CHECKING */
- }
- #endif /* portUSING_MPU_WRAPPERS */
+ #if ( configGENERATE_RUN_TIME_STATS == 1 )
+ {
+ pxNewTCB->ulRunTimeCounter = 0UL;
+ }
+ #endif /* configGENERATE_RUN_TIME_STATS */
- if( pxCreatedTask != NULL )
- {
- /* Pass the handle out in an anonymous way. The handle can be used to
- * change the created task's priority, delete the created task, etc.*/
- *pxCreatedTask = ( TaskHandle_t ) pxNewTCB;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ #if ( portUSING_MPU_WRAPPERS == 1 )
+ {
+ vPortStoreTaskMPUSettings( &( pxNewTCB->xMPUSettings ), xRegions, pxNewTCB->pxStack, ulStackDepth );
+ }
+ #else
+ {
+ /* Avoid compiler warning about unreferenced parameter. */
+ ( void ) xRegions;
+ }
+ #endif
+
+ #if( configNUM_THREAD_LOCAL_STORAGE_POINTERS != 0 )
+ {
+ for( x = 0; x < ( UBaseType_t ) configNUM_THREAD_LOCAL_STORAGE_POINTERS; x++ )
+ {
+ pxNewTCB->pvThreadLocalStoragePointers[ x ] = NULL;
+ }
+ }
+ #endif
+
+ #if ( configUSE_TASK_NOTIFICATIONS == 1 )
+ {
+ pxNewTCB->ulNotifiedValue = 0;
+ pxNewTCB->ucNotifyState = taskNOT_WAITING_NOTIFICATION;
+ }
+ #endif
+
+ #if ( configUSE_NEWLIB_REENTRANT == 1 )
+ {
+ /* Initialise this task's Newlib reent structure. */
+ _REENT_INIT_PTR( ( &( pxNewTCB->xNewLib_reent ) ) );
+ }
+ #endif
+
+ #if( INCLUDE_xTaskAbortDelay == 1 )
+ {
+ pxNewTCB->ucDelayAborted = pdFALSE;
+ }
+ #endif
+
+ /* Initialize the TCB stack to look as if the task was already running,
+ but had been interrupted by the scheduler. The return address is set
+ to the start of the task function. Once the stack has been initialised
+ the top of stack variable is updated. */
+ #if( portUSING_MPU_WRAPPERS == 1 )
+ {
+ /* If the port has capability to detect stack overflow,
+ pass the stack end address to the stack initialization
+ function as well. */
+ #if( portHAS_STACK_OVERFLOW_CHECKING == 1 )
+ {
+ #if( portSTACK_GROWTH < 0 )
+ {
+ pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxStack, pxTaskCode, pvParameters, xRunPrivileged );
+ }
+ #else /* portSTACK_GROWTH */
+ {
+ pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxEndOfStack, pxTaskCode, pvParameters, xRunPrivileged );
+ }
+ #endif /* portSTACK_GROWTH */
+ }
+ #else /* portHAS_STACK_OVERFLOW_CHECKING */
+ {
+ pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters, xRunPrivileged );
+ }
+ #endif /* portHAS_STACK_OVERFLOW_CHECKING */
+ }
+ #else /* portUSING_MPU_WRAPPERS */
+ {
+ /* If the port has capability to detect stack overflow,
+ pass the stack end address to the stack initialization
+ function as well. */
+ #if( portHAS_STACK_OVERFLOW_CHECKING == 1 )
+ {
+ #if( portSTACK_GROWTH < 0 )
+ {
+ pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxStack, pxTaskCode, pvParameters );
+ }
+ #else /* portSTACK_GROWTH */
+ {
+ pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxNewTCB->pxEndOfStack, pxTaskCode, pvParameters );
+ }
+ #endif /* portSTACK_GROWTH */
+ }
+ #else /* portHAS_STACK_OVERFLOW_CHECKING */
+ {
+ pxNewTCB->pxTopOfStack = pxPortInitialiseStack( pxTopOfStack, pxTaskCode, pvParameters );
+ }
+ #endif /* portHAS_STACK_OVERFLOW_CHECKING */
+ }
+ #endif /* portUSING_MPU_WRAPPERS */
+
+ if( pxCreatedTask != NULL )
+ {
+ /* Pass the handle out in an anonymous way. The handle can be used to
+ change the created task's priority, delete the created task, etc.*/
+ *pxCreatedTask = ( TaskHandle_t ) pxNewTCB;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
}
/*-----------------------------------------------------------*/
-static void prvAddNewTaskToReadyList( TCB_t * pxNewTCB )
+static void prvAddNewTaskToReadyList( TCB_t *pxNewTCB )
{
- /* Ensure interrupts don't access the task lists while the lists are being
- * updated. */
- taskENTER_CRITICAL();
- {
- uxCurrentNumberOfTasks++;
+ /* Ensure interrupts don't access the task lists while the lists are being
+ updated. */
+ taskENTER_CRITICAL();
+ {
+ uxCurrentNumberOfTasks++;
+ if( pxCurrentTCB == NULL )
+ {
+ /* There are no other tasks, or all the other tasks are in
+ the suspended state - make this the current task. */
+ pxCurrentTCB = pxNewTCB;
- if( pxCurrentTCB == NULL )
- {
- /* There are no other tasks, or all the other tasks are in
- * the suspended state - make this the current task. */
- pxCurrentTCB = pxNewTCB;
+ if( uxCurrentNumberOfTasks == ( UBaseType_t ) 1 )
+ {
+ /* This is the first task to be created so do the preliminary
+ initialisation required. We will not recover if this call
+ fails, but we will report the failure. */
+ prvInitialiseTaskLists();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ /* If the scheduler is not already running, make this task the
+ current task if it is the highest priority task to be created
+ so far. */
+ if( xSchedulerRunning == pdFALSE )
+ {
+ if( pxCurrentTCB->uxPriority <= pxNewTCB->uxPriority )
+ {
+ pxCurrentTCB = pxNewTCB;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- if( uxCurrentNumberOfTasks == ( UBaseType_t ) 1 )
- {
- /* This is the first task to be created so do the preliminary
- * initialisation required. We will not recover if this call
- * fails, but we will report the failure. */
- prvInitialiseTaskLists();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- /* If the scheduler is not already running, make this task the
- * current task if it is the highest priority task to be created
- * so far. */
- if( xSchedulerRunning == pdFALSE )
- {
- if( pxCurrentTCB->uxPriority <= pxNewTCB->uxPriority )
- {
- pxCurrentTCB = pxNewTCB;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ uxTaskNumber++;
- uxTaskNumber++;
+ #if ( configUSE_TRACE_FACILITY == 1 )
+ {
+ /* Add a counter into the TCB for tracing only. */
+ pxNewTCB->uxTCBNumber = uxTaskNumber;
+ }
+ #endif /* configUSE_TRACE_FACILITY */
+ traceTASK_CREATE( pxNewTCB );
- #if ( configUSE_TRACE_FACILITY == 1 )
- {
- /* Add a counter into the TCB for tracing only. */
- pxNewTCB->uxTCBNumber = uxTaskNumber;
- }
- #endif /* configUSE_TRACE_FACILITY */
- traceTASK_CREATE( pxNewTCB );
+ prvAddTaskToReadyList( pxNewTCB );
- prvAddTaskToReadyList( pxNewTCB );
+ portSETUP_TCB( pxNewTCB );
+ }
+ taskEXIT_CRITICAL();
- portSETUP_TCB( pxNewTCB );
- }
- taskEXIT_CRITICAL();
-
- if( xSchedulerRunning != pdFALSE )
- {
- /* If the created task is of a higher priority than the current task
- * then it should run now. */
- if( pxCurrentTCB->uxPriority < pxNewTCB->uxPriority )
- {
- taskYIELD_IF_USING_PREEMPTION();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ if( xSchedulerRunning != pdFALSE )
+ {
+ /* If the created task is of a higher priority than the current task
+ then it should run now. */
+ if( pxCurrentTCB->uxPriority < pxNewTCB->uxPriority )
+ {
+ taskYIELD_IF_USING_PREEMPTION();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
}
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskDelete == 1 )
- void vTaskDelete( TaskHandle_t xTaskToDelete )
- {
- TCB_t * pxTCB;
+ void vTaskDelete( TaskHandle_t xTaskToDelete )
+ {
+ TCB_t *pxTCB;
- taskENTER_CRITICAL();
- {
- /* If null is passed in here then it is the calling task that is
- * being deleted. */
- pxTCB = prvGetTCBFromHandle( xTaskToDelete );
+ taskENTER_CRITICAL();
+ {
+ /* If null is passed in here then it is the calling task that is
+ being deleted. */
+ pxTCB = prvGetTCBFromHandle( xTaskToDelete );
- /* Remove task from the ready/delayed list. */
- if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- taskRESET_READY_PRIORITY( pxTCB->uxPriority );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Remove task from the ready list. */
+ if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ taskRESET_READY_PRIORITY( pxTCB->uxPriority );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Is the task waiting on an event also? */
- if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
- {
- ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Is the task waiting on an event also? */
+ if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
+ {
+ ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Increment the uxTaskNumber also so kernel aware debuggers can
- * detect that the task lists need re-generating. This is done before
- * portPRE_TASK_DELETE_HOOK() as in the Windows port that macro will
- * not return. */
- uxTaskNumber++;
+ /* Increment the uxTaskNumber also so kernel aware debuggers can
+ detect that the task lists need re-generating. This is done before
+ portPRE_TASK_DELETE_HOOK() as in the Windows port that macro will
+ not return. */
+ uxTaskNumber++;
- if( pxTCB == pxCurrentTCB )
- {
- /* A task is deleting itself. This cannot complete within the
- * task itself, as a context switch to another task is required.
- * Place the task in the termination list. The idle task will
- * check the termination list and free up any memory allocated by
- * the scheduler for the TCB and stack of the deleted task. */
- vListInsertEnd( &xTasksWaitingTermination, &( pxTCB->xStateListItem ) );
+ if( pxTCB == pxCurrentTCB )
+ {
+ /* A task is deleting itself. This cannot complete within the
+ task itself, as a context switch to another task is required.
+ Place the task in the termination list. The idle task will
+ check the termination list and free up any memory allocated by
+ the scheduler for the TCB and stack of the deleted task. */
+ vListInsertEnd( &xTasksWaitingTermination, &( pxTCB->xStateListItem ) );
- /* Increment the ucTasksDeleted variable so the idle task knows
- * there is a task that has been deleted and that it should therefore
- * check the xTasksWaitingTermination list. */
- ++uxDeletedTasksWaitingCleanUp;
+ /* Increment the ucTasksDeleted variable so the idle task knows
+ there is a task that has been deleted and that it should therefore
+ check the xTasksWaitingTermination list. */
+ ++uxDeletedTasksWaitingCleanUp;
- /* Call the delete hook before portPRE_TASK_DELETE_HOOK() as
- * portPRE_TASK_DELETE_HOOK() does not return in the Win32 port. */
- traceTASK_DELETE( pxTCB );
+ /* The pre-delete hook is primarily for the Windows simulator,
+ in which Windows specific clean up operations are performed,
+ after which it is not possible to yield away from this task -
+ hence xYieldPending is used to latch that a context switch is
+ required. */
+ portPRE_TASK_DELETE_HOOK( pxTCB, &xYieldPending );
+ }
+ else
+ {
+ --uxCurrentNumberOfTasks;
+ prvDeleteTCB( pxTCB );
- /* The pre-delete hook is primarily for the Windows simulator,
- * in which Windows specific clean up operations are performed,
- * after which it is not possible to yield away from this task -
- * hence xYieldPending is used to latch that a context switch is
- * required. */
- portPRE_TASK_DELETE_HOOK( pxTCB, &xYieldPending );
- }
- else
- {
- --uxCurrentNumberOfTasks;
- traceTASK_DELETE( pxTCB );
+ /* Reset the next expected unblock time in case it referred to
+ the task that has just been deleted. */
+ prvResetNextTaskUnblockTime();
+ }
- /* Reset the next expected unblock time in case it referred to
- * the task that has just been deleted. */
- prvResetNextTaskUnblockTime();
- }
- }
- taskEXIT_CRITICAL();
+ traceTASK_DELETE( pxTCB );
- /* If the task is not deleting itself, call prvDeleteTCB from outside of
- * critical section. If a task deletes itself, prvDeleteTCB is called
- * from prvCheckTasksWaitingTermination which is called from Idle task. */
- if( pxTCB != pxCurrentTCB )
- {
- prvDeleteTCB( pxTCB );
- }
+#ifdef CONFIG_DMALLOC
+ xClearSpecDmallocNode(pxTCB->uxTCBNumber);
+#endif
+ }
+ taskEXIT_CRITICAL();
- /* Force a reschedule if it is the currently running task that has just
- * been deleted. */
- if( xSchedulerRunning != pdFALSE )
- {
- if( pxTCB == pxCurrentTCB )
- {
- configASSERT( uxSchedulerSuspended == 0 );
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- }
+ /* Force a reschedule if it is the currently running task that has just
+ been deleted. */
+ if( xSchedulerRunning != pdFALSE )
+ {
+ if( pxTCB == pxCurrentTCB )
+ {
+ configASSERT( uxSchedulerSuspended == 0 );
+ portYIELD_WITHIN_API();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ }
#endif /* INCLUDE_vTaskDelete */
/*-----------------------------------------------------------*/
-#if ( INCLUDE_xTaskDelayUntil == 1 )
+#if ( INCLUDE_vTaskDelayUntil == 1 )
- BaseType_t xTaskDelayUntil( TickType_t * const pxPreviousWakeTime,
- const TickType_t xTimeIncrement )
- {
- TickType_t xTimeToWake;
- BaseType_t xAlreadyYielded, xShouldDelay = pdFALSE;
+ void vTaskDelayUntil( TickType_t * const pxPreviousWakeTime, const TickType_t xTimeIncrement )
+ {
+ TickType_t xTimeToWake;
+ BaseType_t xAlreadyYielded, xShouldDelay = pdFALSE;
- configASSERT( pxPreviousWakeTime );
- configASSERT( ( xTimeIncrement > 0U ) );
- configASSERT( uxSchedulerSuspended == 0 );
+ configASSERT( pxPreviousWakeTime );
+ configASSERT( ( xTimeIncrement > 0U ) );
+ configASSERT( uxSchedulerSuspended == 0 );
- vTaskSuspendAll();
- {
- /* Minor optimisation. The tick count cannot change in this
- * block. */
- const TickType_t xConstTickCount = xTickCount;
+ vTaskSuspendAll();
+ {
+ /* Minor optimisation. The tick count cannot change in this
+ block. */
+ const TickType_t xConstTickCount = xTickCount;
- /* Generate the tick time at which the task wants to wake. */
- xTimeToWake = *pxPreviousWakeTime + xTimeIncrement;
+ /* Generate the tick time at which the task wants to wake. */
+ xTimeToWake = *pxPreviousWakeTime + xTimeIncrement;
- if( xConstTickCount < *pxPreviousWakeTime )
- {
- /* The tick count has overflowed since this function was
- * lasted called. In this case the only time we should ever
- * actually delay is if the wake time has also overflowed,
- * and the wake time is greater than the tick time. When this
- * is the case it is as if neither time had overflowed. */
- if( ( xTimeToWake < *pxPreviousWakeTime ) && ( xTimeToWake > xConstTickCount ) )
- {
- xShouldDelay = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- /* The tick time has not overflowed. In this case we will
- * delay if either the wake time has overflowed, and/or the
- * tick time is less than the wake time. */
- if( ( xTimeToWake < *pxPreviousWakeTime ) || ( xTimeToWake > xConstTickCount ) )
- {
- xShouldDelay = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ if( xConstTickCount < *pxPreviousWakeTime )
+ {
+ /* The tick count has overflowed since this function was
+ lasted called. In this case the only time we should ever
+ actually delay is if the wake time has also overflowed,
+ and the wake time is greater than the tick time. When this
+ is the case it is as if neither time had overflowed. */
+ if( ( xTimeToWake < *pxPreviousWakeTime ) && ( xTimeToWake > xConstTickCount ) )
+ {
+ xShouldDelay = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ /* The tick time has not overflowed. In this case we will
+ delay if either the wake time has overflowed, and/or the
+ tick time is less than the wake time. */
+ if( ( xTimeToWake < *pxPreviousWakeTime ) || ( xTimeToWake > xConstTickCount ) )
+ {
+ xShouldDelay = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- /* Update the wake time ready for the next call. */
- *pxPreviousWakeTime = xTimeToWake;
+ /* Update the wake time ready for the next call. */
+ *pxPreviousWakeTime = xTimeToWake;
- if( xShouldDelay != pdFALSE )
- {
- traceTASK_DELAY_UNTIL( xTimeToWake );
+ if( xShouldDelay != pdFALSE )
+ {
+ traceTASK_DELAY_UNTIL( xTimeToWake );
- /* prvAddCurrentTaskToDelayedList() needs the block time, not
- * the time to wake, so subtract the current tick count. */
- prvAddCurrentTaskToDelayedList( xTimeToWake - xConstTickCount, pdFALSE );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- xAlreadyYielded = xTaskResumeAll();
+ /* prvAddCurrentTaskToDelayedList() needs the block time, not
+ the time to wake, so subtract the current tick count. */
+ prvAddCurrentTaskToDelayedList( xTimeToWake - xConstTickCount, pdFALSE );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ xAlreadyYielded = xTaskResumeAll();
- /* Force a reschedule if xTaskResumeAll has not already done so, we may
- * have put ourselves to sleep. */
- if( xAlreadyYielded == pdFALSE )
- {
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Force a reschedule if xTaskResumeAll has not already done so, we may
+ have put ourselves to sleep. */
+ if( xAlreadyYielded == pdFALSE )
+ {
+ portYIELD_WITHIN_API();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- return xShouldDelay;
- }
-
-#endif /* INCLUDE_xTaskDelayUntil */
+#endif /* INCLUDE_vTaskDelayUntil */
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskDelay == 1 )
- void vTaskDelay( const TickType_t xTicksToDelay )
- {
- BaseType_t xAlreadyYielded = pdFALSE;
+ void vTaskDelay( const TickType_t xTicksToDelay )
+ {
+ BaseType_t xAlreadyYielded = pdFALSE;
- /* A delay time of zero just forces a reschedule. */
- if( xTicksToDelay > ( TickType_t ) 0U )
- {
- configASSERT( uxSchedulerSuspended == 0 );
- vTaskSuspendAll();
- {
- traceTASK_DELAY();
+ /* A delay time of zero just forces a reschedule. */
+ if( xTicksToDelay > ( TickType_t ) 0U )
+ {
+ configASSERT( uxSchedulerSuspended == 0 );
+ vTaskSuspendAll();
+ {
+ traceTASK_DELAY();
- /* A task that is removed from the event list while the
- * scheduler is suspended will not get placed in the ready
- * list or removed from the blocked list until the scheduler
- * is resumed.
- *
- * This task cannot be in an event list as it is the currently
- * executing task. */
- prvAddCurrentTaskToDelayedList( xTicksToDelay, pdFALSE );
- }
- xAlreadyYielded = xTaskResumeAll();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* A task that is removed from the event list while the
+ scheduler is suspended will not get placed in the ready
+ list or removed from the blocked list until the scheduler
+ is resumed.
- /* Force a reschedule if xTaskResumeAll has not already done so, we may
- * have put ourselves to sleep. */
- if( xAlreadyYielded == pdFALSE )
- {
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ This task cannot be in an event list as it is the currently
+ executing task. */
+ prvAddCurrentTaskToDelayedList( xTicksToDelay, pdFALSE );
+ }
+ xAlreadyYielded = xTaskResumeAll();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+
+ /* Force a reschedule if xTaskResumeAll has not already done so, we may
+ have put ourselves to sleep. */
+ if( xAlreadyYielded == pdFALSE )
+ {
+ portYIELD_WITHIN_API();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
#endif /* INCLUDE_vTaskDelay */
/*-----------------------------------------------------------*/
-#if ( ( INCLUDE_eTaskGetState == 1 ) || ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_xTaskAbortDelay == 1 ) )
+#if( ( INCLUDE_eTaskGetState == 1 ) || ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_xTaskAbortDelay == 1 ) )
- eTaskState eTaskGetState( TaskHandle_t xTask )
- {
- eTaskState eReturn;
- List_t const * pxStateList;
- List_t const * pxDelayedList;
- List_t const * pxOverflowedDelayedList;
- const TCB_t * const pxTCB = xTask;
+ eTaskState eTaskGetState( TaskHandle_t xTask )
+ {
+ eTaskState eReturn;
+ List_t const * pxStateList, *pxDelayedList, *pxOverflowedDelayedList;
+ const TCB_t * const pxTCB = xTask;
- configASSERT( pxTCB );
+ configASSERT( pxTCB );
- if( pxTCB == pxCurrentTCB )
- {
- /* The task calling this function is querying its own state. */
- eReturn = eRunning;
- }
- else
- {
- taskENTER_CRITICAL();
- {
- pxStateList = listLIST_ITEM_CONTAINER( &( pxTCB->xStateListItem ) );
- pxDelayedList = pxDelayedTaskList;
- pxOverflowedDelayedList = pxOverflowDelayedTaskList;
- }
- taskEXIT_CRITICAL();
+ if( pxTCB == pxCurrentTCB )
+ {
+ /* The task calling this function is querying its own state. */
+ eReturn = eRunning;
+ }
+ else
+ {
+ taskENTER_CRITICAL();
+ {
+ pxStateList = listLIST_ITEM_CONTAINER( &( pxTCB->xStateListItem ) );
+ pxDelayedList = pxDelayedTaskList;
+ pxOverflowedDelayedList = pxOverflowDelayedTaskList;
+ }
+ taskEXIT_CRITICAL();
- if( ( pxStateList == pxDelayedList ) || ( pxStateList == pxOverflowedDelayedList ) )
- {
- /* The task being queried is referenced from one of the Blocked
- * lists. */
- eReturn = eBlocked;
- }
+ if( ( pxStateList == pxDelayedList ) || ( pxStateList == pxOverflowedDelayedList ) )
+ {
+ /* The task being queried is referenced from one of the Blocked
+ lists. */
+ eReturn = eBlocked;
+ }
- #if ( INCLUDE_vTaskSuspend == 1 )
- else if( pxStateList == &xSuspendedTaskList )
- {
- /* The task being queried is referenced from the suspended
- * list. Is it genuinely suspended or is it blocked
- * indefinitely? */
- if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL )
- {
- #if ( configUSE_TASK_NOTIFICATIONS == 1 )
- {
- BaseType_t x;
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ else if( pxStateList == &xSuspendedTaskList )
+ {
+ /* The task being queried is referenced from the suspended
+ list. Is it genuinely suspended or is it blocked
+ indefinitely? */
+ if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL )
+ {
+ #if( configUSE_TASK_NOTIFICATIONS == 1 )
+ {
+ /* The task does not appear on the event list item of
+ and of the RTOS objects, but could still be in the
+ blocked state if it is waiting on its notification
+ rather than waiting on an object. */
+ if( pxTCB->ucNotifyState == taskWAITING_NOTIFICATION )
+ {
+ eReturn = eBlocked;
+ }
+ else
+ {
+ eReturn = eSuspended;
+ }
+ }
+ #else
+ {
+ eReturn = eSuspended;
+ }
+ #endif
+ }
+ else
+ {
+ eReturn = eBlocked;
+ }
+ }
+ #endif
- /* The task does not appear on the event list item of
- * and of the RTOS objects, but could still be in the
- * blocked state if it is waiting on its notification
- * rather than waiting on an object. If not, is
- * suspended. */
- eReturn = eSuspended;
+ #if ( INCLUDE_vTaskDelete == 1 )
+ else if( ( pxStateList == &xTasksWaitingTermination ) || ( pxStateList == NULL ) )
+ {
+ /* The task being queried is referenced from the deleted
+ tasks list, or it is not referenced from any lists at
+ all. */
+ eReturn = eDeleted;
+ }
+ #endif
- for( x = 0; x < configTASK_NOTIFICATION_ARRAY_ENTRIES; x++ )
- {
- if( pxTCB->ucNotifyState[ x ] == taskWAITING_NOTIFICATION )
- {
- eReturn = eBlocked;
- break;
- }
- }
- }
- #else /* if ( configUSE_TASK_NOTIFICATIONS == 1 ) */
- {
- eReturn = eSuspended;
- }
- #endif /* if ( configUSE_TASK_NOTIFICATIONS == 1 ) */
- }
- else
- {
- eReturn = eBlocked;
- }
- }
- #endif /* if ( INCLUDE_vTaskSuspend == 1 ) */
+ else /*lint !e525 Negative indentation is intended to make use of pre-processor clearer. */
+ {
+ /* If the task is not in any other state, it must be in the
+ Ready (including pending ready) state. */
+ eReturn = eReady;
+ }
+ }
- #if ( INCLUDE_vTaskDelete == 1 )
- else if( ( pxStateList == &xTasksWaitingTermination ) || ( pxStateList == NULL ) )
- {
- /* The task being queried is referenced from the deleted
- * tasks list, or it is not referenced from any lists at
- * all. */
- eReturn = eDeleted;
- }
- #endif
-
- else /*lint !e525 Negative indentation is intended to make use of pre-processor clearer. */
- {
- /* If the task is not in any other state, it must be in the
- * Ready (including pending ready) state. */
- eReturn = eReady;
- }
- }
-
- return eReturn;
- } /*lint !e818 xTask cannot be a pointer to const because it is a typedef. */
+ return eReturn;
+ } /*lint !e818 xTask cannot be a pointer to const because it is a typedef. */
#endif /* INCLUDE_eTaskGetState */
/*-----------------------------------------------------------*/
#if ( INCLUDE_uxTaskPriorityGet == 1 )
- UBaseType_t uxTaskPriorityGet( const TaskHandle_t xTask )
- {
- TCB_t const * pxTCB;
- UBaseType_t uxReturn;
+ UBaseType_t uxTaskPriorityGet( const TaskHandle_t xTask )
+ {
+ TCB_t const *pxTCB;
+ UBaseType_t uxReturn;
- taskENTER_CRITICAL();
- {
- /* If null is passed in here then it is the priority of the task
- * that called uxTaskPriorityGet() that is being queried. */
- pxTCB = prvGetTCBFromHandle( xTask );
- uxReturn = pxTCB->uxPriority;
- }
- taskEXIT_CRITICAL();
+ taskENTER_CRITICAL();
+ {
+ /* If null is passed in here then it is the priority of the task
+ that called uxTaskPriorityGet() that is being queried. */
+ pxTCB = prvGetTCBFromHandle( xTask );
+ uxReturn = pxTCB->uxPriority;
+ }
+ taskEXIT_CRITICAL();
- return uxReturn;
- }
+ return uxReturn;
+ }
#endif /* INCLUDE_uxTaskPriorityGet */
/*-----------------------------------------------------------*/
#if ( INCLUDE_uxTaskPriorityGet == 1 )
- UBaseType_t uxTaskPriorityGetFromISR( const TaskHandle_t xTask )
- {
- TCB_t const * pxTCB;
- UBaseType_t uxReturn, uxSavedInterruptState;
+ UBaseType_t uxTaskPriorityGetFromISR( const TaskHandle_t xTask )
+ {
+ TCB_t const *pxTCB;
+ UBaseType_t uxReturn, uxSavedInterruptState;
- /* RTOS ports that support interrupt nesting have the concept of a
- * maximum system call (or maximum API call) interrupt priority.
- * Interrupts that are above the maximum system call priority are keep
- * permanently enabled, even when the RTOS kernel is in a critical section,
- * but cannot make any calls to FreeRTOS API functions. If configASSERT()
- * is defined in FreeRTOSConfig.h then
- * portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
- * failure if a FreeRTOS API function is called from an interrupt that has
- * been assigned a priority above the configured maximum system call
- * priority. Only FreeRTOS functions that end in FromISR can be called
- * from interrupts that have been assigned a priority at or (logically)
- * below the maximum system call interrupt priority. FreeRTOS maintains a
- * separate interrupt safe API to ensure interrupt entry is as fast and as
- * simple as possible. More information (albeit Cortex-M specific) is
- * provided on the following link:
- * https://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html */
- portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
+ /* RTOS ports that support interrupt nesting have the concept of a
+ maximum system call (or maximum API call) interrupt priority.
+ Interrupts that are above the maximum system call priority are keep
+ permanently enabled, even when the RTOS kernel is in a critical section,
+ but cannot make any calls to FreeRTOS API functions. If configASSERT()
+ is defined in FreeRTOSConfig.h then
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
+ failure if a FreeRTOS API function is called from an interrupt that has
+ been assigned a priority above the configured maximum system call
+ priority. Only FreeRTOS functions that end in FromISR can be called
+ from interrupts that have been assigned a priority at or (logically)
+ below the maximum system call interrupt priority. FreeRTOS maintains a
+ separate interrupt safe API to ensure interrupt entry is as fast and as
+ simple as possible. More information (albeit Cortex-M specific) is
+ provided on the following link:
+ https://www.freertos.org/RTOS-Cortex-M3-M4.html */
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
- uxSavedInterruptState = portSET_INTERRUPT_MASK_FROM_ISR();
- {
- /* If null is passed in here then it is the priority of the calling
- * task that is being queried. */
- pxTCB = prvGetTCBFromHandle( xTask );
- uxReturn = pxTCB->uxPriority;
- }
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptState );
+ uxSavedInterruptState = portSET_INTERRUPT_MASK_FROM_ISR();
+ {
+ /* If null is passed in here then it is the priority of the calling
+ task that is being queried. */
+ pxTCB = prvGetTCBFromHandle( xTask );
+ uxReturn = pxTCB->uxPriority;
+ }
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptState );
- return uxReturn;
- }
+ return uxReturn;
+ }
#endif /* INCLUDE_uxTaskPriorityGet */
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskPrioritySet == 1 )
- void vTaskPrioritySet( TaskHandle_t xTask,
- UBaseType_t uxNewPriority )
- {
- TCB_t * pxTCB;
- UBaseType_t uxCurrentBasePriority, uxPriorityUsedOnEntry;
- BaseType_t xYieldRequired = pdFALSE;
+ void vTaskPrioritySet( TaskHandle_t xTask, UBaseType_t uxNewPriority )
+ {
+ TCB_t *pxTCB;
+ UBaseType_t uxCurrentBasePriority, uxPriorityUsedOnEntry;
+ BaseType_t xYieldRequired = pdFALSE;
- configASSERT( uxNewPriority < configMAX_PRIORITIES );
+ configASSERT( ( uxNewPriority < configMAX_PRIORITIES ) );
- /* Ensure the new priority is valid. */
- if( uxNewPriority >= ( UBaseType_t ) configMAX_PRIORITIES )
- {
- uxNewPriority = ( UBaseType_t ) configMAX_PRIORITIES - ( UBaseType_t ) 1U;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Ensure the new priority is valid. */
+ if( uxNewPriority >= ( UBaseType_t ) configMAX_PRIORITIES )
+ {
+ uxNewPriority = ( UBaseType_t ) configMAX_PRIORITIES - ( UBaseType_t ) 1U;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- taskENTER_CRITICAL();
- {
- /* If null is passed in here then it is the priority of the calling
- * task that is being changed. */
- pxTCB = prvGetTCBFromHandle( xTask );
+ taskENTER_CRITICAL();
+ {
+ /* If null is passed in here then it is the priority of the calling
+ task that is being changed. */
+ pxTCB = prvGetTCBFromHandle( xTask );
- traceTASK_PRIORITY_SET( pxTCB, uxNewPriority );
+ traceTASK_PRIORITY_SET( pxTCB, uxNewPriority );
- #if ( configUSE_MUTEXES == 1 )
- {
- uxCurrentBasePriority = pxTCB->uxBasePriority;
- }
- #else
- {
- uxCurrentBasePriority = pxTCB->uxPriority;
- }
- #endif
+ #if ( configUSE_MUTEXES == 1 )
+ {
+ uxCurrentBasePriority = pxTCB->uxBasePriority;
+ }
+ #else
+ {
+ uxCurrentBasePriority = pxTCB->uxPriority;
+ }
+ #endif
- if( uxCurrentBasePriority != uxNewPriority )
- {
- /* The priority change may have readied a task of higher
- * priority than the calling task. */
- if( uxNewPriority > uxCurrentBasePriority )
- {
- if( pxTCB != pxCurrentTCB )
- {
- /* The priority of a task other than the currently
- * running task is being raised. Is the priority being
- * raised above that of the running task? */
- if( uxNewPriority >= pxCurrentTCB->uxPriority )
- {
- xYieldRequired = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- /* The priority of the running task is being raised,
- * but the running task must already be the highest
- * priority task able to run so no yield is required. */
- }
- }
- else if( pxTCB == pxCurrentTCB )
- {
- /* Setting the priority of the running task down means
- * there may now be another task of higher priority that
- * is ready to execute. */
- xYieldRequired = pdTRUE;
- }
- else
- {
- /* Setting the priority of any other task down does not
- * require a yield as the running task must be above the
- * new priority of the task being modified. */
- }
+ if( uxCurrentBasePriority != uxNewPriority )
+ {
+ /* The priority change may have readied a task of higher
+ priority than the calling task. */
+ if( uxNewPriority > uxCurrentBasePriority )
+ {
+ if( pxTCB != pxCurrentTCB )
+ {
+ /* The priority of a task other than the currently
+ running task is being raised. Is the priority being
+ raised above that of the running task? */
+ if( uxNewPriority >= pxCurrentTCB->uxPriority )
+ {
+ xYieldRequired = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ /* The priority of the running task is being raised,
+ but the running task must already be the highest
+ priority task able to run so no yield is required. */
+ }
+ }
+ else if( pxTCB == pxCurrentTCB )
+ {
+ /* Setting the priority of the running task down means
+ there may now be another task of higher priority that
+ is ready to execute. */
+ xYieldRequired = pdTRUE;
+ }
+ else
+ {
+ /* Setting the priority of any other task down does not
+ require a yield as the running task must be above the
+ new priority of the task being modified. */
+ }
- /* Remember the ready list the task might be referenced from
- * before its uxPriority member is changed so the
- * taskRESET_READY_PRIORITY() macro can function correctly. */
- uxPriorityUsedOnEntry = pxTCB->uxPriority;
+ /* Remember the ready list the task might be referenced from
+ before its uxPriority member is changed so the
+ taskRESET_READY_PRIORITY() macro can function correctly. */
+ uxPriorityUsedOnEntry = pxTCB->uxPriority;
- #if ( configUSE_MUTEXES == 1 )
- {
- /* Only change the priority being used if the task is not
- * currently using an inherited priority. */
- if( pxTCB->uxBasePriority == pxTCB->uxPriority )
- {
- pxTCB->uxPriority = uxNewPriority;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ #if ( configUSE_MUTEXES == 1 )
+ {
+ /* Only change the priority being used if the task is not
+ currently using an inherited priority. */
+ if( pxTCB->uxBasePriority == pxTCB->uxPriority )
+ {
+ pxTCB->uxPriority = uxNewPriority;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* The base priority gets set whatever. */
- pxTCB->uxBasePriority = uxNewPriority;
- }
- #else /* if ( configUSE_MUTEXES == 1 ) */
- {
- pxTCB->uxPriority = uxNewPriority;
- }
- #endif /* if ( configUSE_MUTEXES == 1 ) */
+ /* The base priority gets set whatever. */
+ pxTCB->uxBasePriority = uxNewPriority;
+ }
+ #else
+ {
+ pxTCB->uxPriority = uxNewPriority;
+ }
+ #endif
- /* Only reset the event list item value if the value is not
- * being used for anything else. */
- if( ( listGET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ) ) & taskEVENT_LIST_ITEM_VALUE_IN_USE ) == 0UL )
- {
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) uxNewPriority ) ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Only reset the event list item value if the value is not
+ being used for anything else. */
+ if( ( listGET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ) ) & taskEVENT_LIST_ITEM_VALUE_IN_USE ) == 0UL )
+ {
+ listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) uxNewPriority ) ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* If the task is in the blocked or suspended list we need do
- * nothing more than change its priority variable. However, if
- * the task is in a ready list it needs to be removed and placed
- * in the list appropriate to its new priority. */
- if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ uxPriorityUsedOnEntry ] ), &( pxTCB->xStateListItem ) ) != pdFALSE )
- {
- /* The task is currently in its ready list - remove before
- * adding it to its new ready list. As we are in a critical
- * section we can do this even if the scheduler is suspended. */
- if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- /* It is known that the task is in its ready list so
- * there is no need to check again and the port level
- * reset macro can be called directly. */
- portRESET_READY_PRIORITY( uxPriorityUsedOnEntry, uxTopReadyPriority );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* If the task is in the blocked or suspended list we need do
+ nothing more than change its priority variable. However, if
+ the task is in a ready list it needs to be removed and placed
+ in the list appropriate to its new priority. */
+ if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ uxPriorityUsedOnEntry ] ), &( pxTCB->xStateListItem ) ) != pdFALSE )
+ {
+ /* The task is currently in its ready list - remove before
+ adding it to it's new ready list. As we are in a critical
+ section we can do this even if the scheduler is suspended. */
+ if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ /* It is known that the task is in its ready list so
+ there is no need to check again and the port level
+ reset macro can be called directly. */
+ portRESET_READY_PRIORITY( uxPriorityUsedOnEntry, uxTopReadyPriority );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ prvAddTaskToReadyList( pxTCB );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- prvAddTaskToReadyList( pxTCB );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ if( xYieldRequired != pdFALSE )
+ {
+ taskYIELD_IF_USING_PREEMPTION();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- if( xYieldRequired != pdFALSE )
- {
- taskYIELD_IF_USING_PREEMPTION();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
-
- /* Remove compiler warning about unused variables when the port
- * optimised task selection is not being used. */
- ( void ) uxPriorityUsedOnEntry;
- }
- }
- taskEXIT_CRITICAL();
- }
+ /* Remove compiler warning about unused variables when the port
+ optimised task selection is not being used. */
+ ( void ) uxPriorityUsedOnEntry;
+ }
+ }
+ taskEXIT_CRITICAL();
+ }
#endif /* INCLUDE_vTaskPrioritySet */
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskSuspend == 1 )
- void vTaskSuspend( TaskHandle_t xTaskToSuspend )
- {
- TCB_t * pxTCB;
+ void vTaskSuspend( TaskHandle_t xTaskToSuspend )
+ {
+ TCB_t *pxTCB;
- taskENTER_CRITICAL();
- {
- /* If null is passed in here then it is the running task that is
- * being suspended. */
- pxTCB = prvGetTCBFromHandle( xTaskToSuspend );
+ taskENTER_CRITICAL();
+ {
+ /* If null is passed in here then it is the running task that is
+ being suspended. */
+ pxTCB = prvGetTCBFromHandle( xTaskToSuspend );
- traceTASK_SUSPEND( pxTCB );
+ traceTASK_SUSPEND( pxTCB );
- /* Remove task from the ready/delayed list and place in the
- * suspended list. */
- if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- taskRESET_READY_PRIORITY( pxTCB->uxPriority );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Remove task from the ready/delayed list and place in the
+ suspended list. */
+ if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ taskRESET_READY_PRIORITY( pxTCB->uxPriority );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Is the task waiting on an event also? */
- if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
- {
- ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Is the task waiting on an event also? */
+ if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
+ {
+ ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- vListInsertEnd( &xSuspendedTaskList, &( pxTCB->xStateListItem ) );
+ vListInsertEnd( &xSuspendedTaskList, &( pxTCB->xStateListItem ) );
- #if ( configUSE_TASK_NOTIFICATIONS == 1 )
- {
- BaseType_t x;
+ #if( configUSE_TASK_NOTIFICATIONS == 1 )
+ {
+ if( pxTCB->ucNotifyState == taskWAITING_NOTIFICATION )
+ {
+ /* The task was blocked to wait for a notification, but is
+ now suspended, so no notification was received. */
+ pxTCB->ucNotifyState = taskNOT_WAITING_NOTIFICATION;
+ }
+ }
+ #endif
+ }
+ taskEXIT_CRITICAL();
- for( x = 0; x < configTASK_NOTIFICATION_ARRAY_ENTRIES; x++ )
- {
- if( pxTCB->ucNotifyState[ x ] == taskWAITING_NOTIFICATION )
- {
- /* The task was blocked to wait for a notification, but is
- * now suspended, so no notification was received. */
- pxTCB->ucNotifyState[ x ] = taskNOT_WAITING_NOTIFICATION;
- }
- }
- }
- #endif /* if ( configUSE_TASK_NOTIFICATIONS == 1 ) */
- }
- taskEXIT_CRITICAL();
+ if( xSchedulerRunning != pdFALSE )
+ {
+ /* Reset the next expected unblock time in case it referred to the
+ task that is now in the Suspended state. */
+ taskENTER_CRITICAL();
+ {
+ prvResetNextTaskUnblockTime();
+ }
+ taskEXIT_CRITICAL();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- if( xSchedulerRunning != pdFALSE )
- {
- /* Reset the next expected unblock time in case it referred to the
- * task that is now in the Suspended state. */
- taskENTER_CRITICAL();
- {
- prvResetNextTaskUnblockTime();
- }
- taskEXIT_CRITICAL();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
-
- if( pxTCB == pxCurrentTCB )
- {
- if( xSchedulerRunning != pdFALSE )
- {
- /* The current task has just been suspended. */
- configASSERT( uxSchedulerSuspended == 0 );
- portYIELD_WITHIN_API();
- }
- else
- {
- /* The scheduler is not running, but the task that was pointed
- * to by pxCurrentTCB has just been suspended and pxCurrentTCB
- * must be adjusted to point to a different task. */
- if( listCURRENT_LIST_LENGTH( &xSuspendedTaskList ) == uxCurrentNumberOfTasks ) /*lint !e931 Right has no side effect, just volatile. */
- {
- /* No other tasks are ready, so set pxCurrentTCB back to
- * NULL so when the next task is created pxCurrentTCB will
- * be set to point to it no matter what its relative priority
- * is. */
- pxCurrentTCB = NULL;
- }
- else
- {
- vTaskSwitchContext();
- }
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ if( pxTCB == pxCurrentTCB )
+ {
+ if( xSchedulerRunning != pdFALSE )
+ {
+ /* The current task has just been suspended. */
+ configASSERT( uxSchedulerSuspended == 0 );
+ portYIELD_WITHIN_API();
+ }
+ else
+ {
+ /* The scheduler is not running, but the task that was pointed
+ to by pxCurrentTCB has just been suspended and pxCurrentTCB
+ must be adjusted to point to a different task. */
+ if( listCURRENT_LIST_LENGTH( &xSuspendedTaskList ) == uxCurrentNumberOfTasks ) /*lint !e931 Right has no side effect, just volatile. */
+ {
+ /* No other tasks are ready, so set pxCurrentTCB back to
+ NULL so when the next task is created pxCurrentTCB will
+ be set to point to it no matter what its relative priority
+ is. */
+ pxCurrentTCB = NULL;
+ }
+ else
+ {
+ vTaskSwitchContext();
+ }
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
#endif /* INCLUDE_vTaskSuspend */
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskSuspend == 1 )
- static BaseType_t prvTaskIsTaskSuspended( const TaskHandle_t xTask )
- {
- BaseType_t xReturn = pdFALSE;
- const TCB_t * const pxTCB = xTask;
+ static BaseType_t prvTaskIsTaskSuspended( const TaskHandle_t xTask )
+ {
+ BaseType_t xReturn = pdFALSE;
+ const TCB_t * const pxTCB = xTask;
- /* Accesses xPendingReadyList so must be called from a critical
- * section. */
+ /* Accesses xPendingReadyList so must be called from a critical
+ section. */
- /* It does not make sense to check if the calling task is suspended. */
- configASSERT( xTask );
+ /* It does not make sense to check if the calling task is suspended. */
+ configASSERT( xTask );
- /* Is the task being resumed actually in the suspended list? */
- if( listIS_CONTAINED_WITHIN( &xSuspendedTaskList, &( pxTCB->xStateListItem ) ) != pdFALSE )
- {
- /* Has the task already been resumed from within an ISR? */
- if( listIS_CONTAINED_WITHIN( &xPendingReadyList, &( pxTCB->xEventListItem ) ) == pdFALSE )
- {
- /* Is it in the suspended list because it is in the Suspended
- * state, or because is is blocked with no timeout? */
- if( listIS_CONTAINED_WITHIN( NULL, &( pxTCB->xEventListItem ) ) != pdFALSE ) /*lint !e961. The cast is only redundant when NULL is used. */
- {
- xReturn = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Is the task being resumed actually in the suspended list? */
+ if( listIS_CONTAINED_WITHIN( &xSuspendedTaskList, &( pxTCB->xStateListItem ) ) != pdFALSE )
+ {
+ /* Has the task already been resumed from within an ISR? */
+ if( listIS_CONTAINED_WITHIN( &xPendingReadyList, &( pxTCB->xEventListItem ) ) == pdFALSE )
+ {
+ /* Is it in the suspended list because it is in the Suspended
+ state, or because is is blocked with no timeout? */
+ if( listIS_CONTAINED_WITHIN( NULL, &( pxTCB->xEventListItem ) ) != pdFALSE ) /*lint !e961. The cast is only redundant when NULL is used. */
+ {
+ xReturn = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- return xReturn;
- } /*lint !e818 xTask cannot be a pointer to const because it is a typedef. */
+ return xReturn;
+ } /*lint !e818 xTask cannot be a pointer to const because it is a typedef. */
#endif /* INCLUDE_vTaskSuspend */
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskSuspend == 1 )
- void vTaskResume( TaskHandle_t xTaskToResume )
- {
- TCB_t * const pxTCB = xTaskToResume;
+ void vTaskResume( TaskHandle_t xTaskToResume )
+ {
+ TCB_t * const pxTCB = xTaskToResume;
- /* It does not make sense to resume the calling task. */
- configASSERT( xTaskToResume );
+ /* It does not make sense to resume the calling task. */
+ configASSERT( xTaskToResume );
- /* The parameter cannot be NULL as it is impossible to resume the
- * currently executing task. */
- if( ( pxTCB != pxCurrentTCB ) && ( pxTCB != NULL ) )
- {
- taskENTER_CRITICAL();
- {
- if( prvTaskIsTaskSuspended( pxTCB ) != pdFALSE )
- {
- traceTASK_RESUME( pxTCB );
+ /* The parameter cannot be NULL as it is impossible to resume the
+ currently executing task. */
+ if( ( pxTCB != pxCurrentTCB ) && ( pxTCB != NULL ) )
+ {
+ taskENTER_CRITICAL();
+ {
+ if( prvTaskIsTaskSuspended( pxTCB ) != pdFALSE )
+ {
+ traceTASK_RESUME( pxTCB );
- /* The ready list can be accessed even if the scheduler is
- * suspended because this is inside a critical section. */
- ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxTCB );
+ /* The ready list can be accessed even if the scheduler is
+ suspended because this is inside a critical section. */
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxTCB );
- /* A higher priority task may have just been resumed. */
- if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
- {
- /* This yield may not cause the task just resumed to run,
- * but will leave the lists in the correct state for the
- * next yield. */
- taskYIELD_IF_USING_PREEMPTION();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ /* A higher priority task may have just been resumed. */
+ if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
+ {
+ /* This yield may not cause the task just resumed to run,
+ but will leave the lists in the correct state for the
+ next yield. */
+ taskYIELD_IF_USING_PREEMPTION();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ taskEXIT_CRITICAL();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
#endif /* INCLUDE_vTaskSuspend */
@@ -1882,1543 +1932,1436 @@
#if ( ( INCLUDE_xTaskResumeFromISR == 1 ) && ( INCLUDE_vTaskSuspend == 1 ) )
- BaseType_t xTaskResumeFromISR( TaskHandle_t xTaskToResume )
- {
- BaseType_t xYieldRequired = pdFALSE;
- TCB_t * const pxTCB = xTaskToResume;
- UBaseType_t uxSavedInterruptStatus;
+ BaseType_t xTaskResumeFromISR( TaskHandle_t xTaskToResume )
+ {
+ BaseType_t xYieldRequired = pdFALSE;
+ TCB_t * const pxTCB = xTaskToResume;
+ UBaseType_t uxSavedInterruptStatus;
- configASSERT( xTaskToResume );
+ configASSERT( xTaskToResume );
- /* RTOS ports that support interrupt nesting have the concept of a
- * maximum system call (or maximum API call) interrupt priority.
- * Interrupts that are above the maximum system call priority are keep
- * permanently enabled, even when the RTOS kernel is in a critical section,
- * but cannot make any calls to FreeRTOS API functions. If configASSERT()
- * is defined in FreeRTOSConfig.h then
- * portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
- * failure if a FreeRTOS API function is called from an interrupt that has
- * been assigned a priority above the configured maximum system call
- * priority. Only FreeRTOS functions that end in FromISR can be called
- * from interrupts that have been assigned a priority at or (logically)
- * below the maximum system call interrupt priority. FreeRTOS maintains a
- * separate interrupt safe API to ensure interrupt entry is as fast and as
- * simple as possible. More information (albeit Cortex-M specific) is
- * provided on the following link:
- * https://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html */
- portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
+ /* RTOS ports that support interrupt nesting have the concept of a
+ maximum system call (or maximum API call) interrupt priority.
+ Interrupts that are above the maximum system call priority are keep
+ permanently enabled, even when the RTOS kernel is in a critical section,
+ but cannot make any calls to FreeRTOS API functions. If configASSERT()
+ is defined in FreeRTOSConfig.h then
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
+ failure if a FreeRTOS API function is called from an interrupt that has
+ been assigned a priority above the configured maximum system call
+ priority. Only FreeRTOS functions that end in FromISR can be called
+ from interrupts that have been assigned a priority at or (logically)
+ below the maximum system call interrupt priority. FreeRTOS maintains a
+ separate interrupt safe API to ensure interrupt entry is as fast and as
+ simple as possible. More information (albeit Cortex-M specific) is
+ provided on the following link:
+ https://www.freertos.org/RTOS-Cortex-M3-M4.html */
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
- {
- if( prvTaskIsTaskSuspended( pxTCB ) != pdFALSE )
- {
- traceTASK_RESUME_FROM_ISR( pxTCB );
+ uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
+ {
+ if( prvTaskIsTaskSuspended( pxTCB ) != pdFALSE )
+ {
+ traceTASK_RESUME_FROM_ISR( pxTCB );
- /* Check the ready lists can be accessed. */
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- /* Ready lists can be accessed so move the task from the
- * suspended list to the ready list directly. */
- if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
- {
- xYieldRequired = pdTRUE;
+ /* Check the ready lists can be accessed. */
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ /* Ready lists can be accessed so move the task from the
+ suspended list to the ready list directly. */
+ if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
+ {
+ xYieldRequired = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Mark that a yield is pending in case the user is not
- * using the return value to initiate a context switch
- * from the ISR using portYIELD_FROM_ISR. */
- xYieldPending = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxTCB );
+ }
+ else
+ {
+ /* The delayed or ready lists cannot be accessed so the task
+ is held in the pending ready list until the scheduler is
+ unsuspended. */
+ vListInsertEnd( &( xPendingReadyList ), &( pxTCB->xEventListItem ) );
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
- ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxTCB );
- }
- else
- {
- /* The delayed or ready lists cannot be accessed so the task
- * is held in the pending ready list until the scheduler is
- * unsuspended. */
- vListInsertEnd( &( xPendingReadyList ), &( pxTCB->xEventListItem ) );
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
-
- return xYieldRequired;
- }
+ return xYieldRequired;
+ }
#endif /* ( ( INCLUDE_xTaskResumeFromISR == 1 ) && ( INCLUDE_vTaskSuspend == 1 ) ) */
/*-----------------------------------------------------------*/
void vTaskStartScheduler( void )
{
- BaseType_t xReturn;
+BaseType_t xReturn;
- /* Add the idle task at the lowest priority. */
- #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
- {
- StaticTask_t * pxIdleTaskTCBBuffer = NULL;
- StackType_t * pxIdleTaskStackBuffer = NULL;
- configSTACK_DEPTH_TYPE ulIdleTaskStackSize;
+ /* Add the idle task at the lowest priority. */
+ #if( configSUPPORT_STATIC_ALLOCATION == 1 )
+ {
+ StaticTask_t *pxIdleTaskTCBBuffer = NULL;
+ StackType_t *pxIdleTaskStackBuffer = NULL;
+ configSTACK_DEPTH_TYPE ulIdleTaskStackSize;
- /* The Idle task is created using user provided RAM - obtain the
- * address of the RAM then create the idle task. */
- vApplicationGetIdleTaskMemory( &pxIdleTaskTCBBuffer, &pxIdleTaskStackBuffer, &ulIdleTaskStackSize );
- xIdleTaskHandle = xTaskCreateStatic( prvIdleTask,
- configIDLE_TASK_NAME,
- ulIdleTaskStackSize,
- ( void * ) NULL, /*lint !e961. The cast is not redundant for all compilers. */
- portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
- pxIdleTaskStackBuffer,
- pxIdleTaskTCBBuffer ); /*lint !e961 MISRA exception, justified as it is not a redundant explicit cast to all supported compilers. */
+ /* The Idle task is created using user provided RAM - obtain the
+ address of the RAM then create the idle task. */
+ vApplicationGetIdleTaskMemory( &pxIdleTaskTCBBuffer, &pxIdleTaskStackBuffer, &ulIdleTaskStackSize );
+ xIdleTaskHandle = xTaskCreateStatic( prvIdleTask,
+ configIDLE_TASK_NAME,
+ ulIdleTaskStackSize,
+ ( void * ) NULL, /*lint !e961. The cast is not redundant for all compilers. */
+ portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
+ pxIdleTaskStackBuffer,
+ pxIdleTaskTCBBuffer ); /*lint !e961 MISRA exception, justified as it is not a redundant explicit cast to all supported compilers. */
- if( xIdleTaskHandle != NULL )
- {
- xReturn = pdPASS;
- }
- else
- {
- xReturn = pdFAIL;
- }
- }
- #else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
- {
- /* The Idle task is being created using dynamically allocated RAM. */
- xReturn = xTaskCreate( prvIdleTask,
- configIDLE_TASK_NAME,
- configMINIMAL_STACK_SIZE,
- ( void * ) NULL,
- portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
- &xIdleTaskHandle ); /*lint !e961 MISRA exception, justified as it is not a redundant explicit cast to all supported compilers. */
- }
- #endif /* configSUPPORT_STATIC_ALLOCATION */
+ if( xIdleTaskHandle != NULL )
+ {
+ xReturn = pdPASS;
+ }
+ else
+ {
+ xReturn = pdFAIL;
+ }
+ }
+ #else
+ {
+ /* The Idle task is being created using dynamically allocated RAM. */
+ xReturn = xTaskCreate( prvIdleTask,
+ configIDLE_TASK_NAME,
+ configMINIMAL_STACK_SIZE,
+ ( void * ) NULL,
+ portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
+ &xIdleTaskHandle ); /*lint !e961 MISRA exception, justified as it is not a redundant explicit cast to all supported compilers. */
+ }
+ #endif /* configSUPPORT_STATIC_ALLOCATION */
- #if ( configUSE_TIMERS == 1 )
- {
- if( xReturn == pdPASS )
- {
- xReturn = xTimerCreateTimerTask();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configUSE_TIMERS */
+ #if ( configUSE_TIMERS == 1 )
+ {
+ if( xReturn == pdPASS )
+ {
+ xReturn = xTimerCreateTimerTask();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configUSE_TIMERS */
- if( xReturn == pdPASS )
- {
- /* freertos_tasks_c_additions_init() should only be called if the user
- * definable macro FREERTOS_TASKS_C_ADDITIONS_INIT() is defined, as that is
- * the only macro called by the function. */
- #ifdef FREERTOS_TASKS_C_ADDITIONS_INIT
- {
- freertos_tasks_c_additions_init();
- }
- #endif
+ if( xReturn == pdPASS )
+ {
+ /* freertos_tasks_c_additions_init() should only be called if the user
+ definable macro FREERTOS_TASKS_C_ADDITIONS_INIT() is defined, as that is
+ the only macro called by the function. */
+ #ifdef FREERTOS_TASKS_C_ADDITIONS_INIT
+ {
+ freertos_tasks_c_additions_init();
+ }
+ #endif
- /* Interrupts are turned off here, to ensure a tick does not occur
- * before or during the call to xPortStartScheduler(). The stacks of
- * the created tasks contain a status word with interrupts switched on
- * so interrupts will automatically get re-enabled when the first task
- * starts to run. */
- portDISABLE_INTERRUPTS();
+ /* Interrupts are turned off here, to ensure a tick does not occur
+ before or during the call to xPortStartScheduler(). The stacks of
+ the created tasks contain a status word with interrupts switched on
+ so interrupts will automatically get re-enabled when the first task
+ starts to run. */
+ portDISABLE_INTERRUPTS();
- #if ( ( configUSE_NEWLIB_REENTRANT == 1 ) || ( configUSE_C_RUNTIME_TLS_SUPPORT == 1 ) )
- {
- /* Switch C-Runtime's TLS Block to point to the TLS
- * block specific to the task that will run first. */
- configSET_TLS_BLOCK( pxCurrentTCB->xTLSBlock );
- }
- #endif
+ #if ( configUSE_NEWLIB_REENTRANT == 1 )
+ {
+ /* Switch Newlib's _impure_ptr variable to point to the _reent
+ structure specific to the task that will run first. */
+ _impure_ptr = &( pxCurrentTCB->xNewLib_reent );
+ }
+ #endif /* configUSE_NEWLIB_REENTRANT */
- xNextTaskUnblockTime = portMAX_DELAY;
- xSchedulerRunning = pdTRUE;
- xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
+ xNextTaskUnblockTime = portMAX_DELAY;
+ xSchedulerRunning = pdTRUE;
+ xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
- /* If configGENERATE_RUN_TIME_STATS is defined then the following
- * macro must be defined to configure the timer/counter used to generate
- * the run time counter time base. NOTE: If configGENERATE_RUN_TIME_STATS
- * is set to 0 and the following line fails to build then ensure you do not
- * have portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() defined in your
- * FreeRTOSConfig.h file. */
- portCONFIGURE_TIMER_FOR_RUN_TIME_STATS();
+ /* If configGENERATE_RUN_TIME_STATS is defined then the following
+ macro must be defined to configure the timer/counter used to generate
+ the run time counter time base. NOTE: If configGENERATE_RUN_TIME_STATS
+ is set to 0 and the following line fails to build then ensure you do not
+ have portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() defined in your
+ FreeRTOSConfig.h file. */
+ portCONFIGURE_TIMER_FOR_RUN_TIME_STATS();
- traceTASK_SWITCHED_IN();
+ traceTASK_SWITCHED_IN();
- /* Setting up the timer tick is hardware specific and thus in the
- * portable interface. */
- xPortStartScheduler();
+ /* Setting up the timer tick is hardware specific and thus in the
+ portable interface. */
+ if( xPortStartScheduler() != pdFALSE )
+ {
+ /* Should not reach here as if the scheduler is running the
+ function will not return. */
+ }
+ else
+ {
+ /* Should only reach here if a task calls xTaskEndScheduler(). */
+ }
+ }
+ else
+ {
+ /* This line will only be reached if the kernel could not be started,
+ because there was not enough FreeRTOS heap to create the idle task
+ or the timer task. */
+ configASSERT( xReturn != errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY );
+ }
- /* In most cases, xPortStartScheduler() will not return. If it
- * returns pdTRUE then there was not enough heap memory available
- * to create either the Idle or the Timer task. If it returned
- * pdFALSE, then the application called xTaskEndScheduler().
- * Most ports don't implement xTaskEndScheduler() as there is
- * nothing to return to. */
- }
- else
- {
- /* This line will only be reached if the kernel could not be started,
- * because there was not enough FreeRTOS heap to create the idle task
- * or the timer task. */
- configASSERT( xReturn != errCOULD_NOT_ALLOCATE_REQUIRED_MEMORY );
- }
-
- /* Prevent compiler warnings if INCLUDE_xTaskGetIdleTaskHandle is set to 0,
- * meaning xIdleTaskHandle is not used anywhere else. */
- ( void ) xIdleTaskHandle;
-
- /* OpenOCD makes use of uxTopUsedPriority for thread debugging. Prevent uxTopUsedPriority
- * from getting optimized out as it is no longer used by the kernel. */
- ( void ) uxTopUsedPriority;
+ /* Prevent compiler warnings if INCLUDE_xTaskGetIdleTaskHandle is set to 0,
+ meaning xIdleTaskHandle is not used anywhere else. */
+ ( void ) xIdleTaskHandle;
}
/*-----------------------------------------------------------*/
void vTaskEndScheduler( void )
{
- /* Stop the scheduler interrupts and call the portable scheduler end
- * routine so the original ISRs can be restored if necessary. The port
- * layer must ensure interrupts enable bit is left in the correct state. */
- portDISABLE_INTERRUPTS();
- xSchedulerRunning = pdFALSE;
- vPortEndScheduler();
+ /* Stop the scheduler interrupts and call the portable scheduler end
+ routine so the original ISRs can be restored if necessary. The port
+ layer must ensure interrupts enable bit is left in the correct state. */
+ portDISABLE_INTERRUPTS();
+ xSchedulerRunning = pdFALSE;
+ vPortEndScheduler();
}
/*----------------------------------------------------------*/
void vTaskSuspendAll( void )
{
- /* A critical section is not required as the variable is of type
- * BaseType_t. Please read Richard Barry's reply in the following link to a
- * post in the FreeRTOS support forum before reporting this as a bug! -
- * https://goo.gl/wu4acr */
-
- /* portSOFTWARE_BARRIER() is only implemented for emulated/simulated ports that
- * do not otherwise exhibit real time behaviour. */
- portSOFTWARE_BARRIER();
-
- /* The scheduler is suspended if uxSchedulerSuspended is non-zero. An increment
- * is used to allow calls to vTaskSuspendAll() to nest. */
- ++uxSchedulerSuspended;
-
- /* Enforces ordering for ports and optimised compilers that may otherwise place
- * the above increment elsewhere. */
- portMEMORY_BARRIER();
+ /* A critical section is not required as the variable is of type
+ BaseType_t. Please read Richard Barry's reply in the following link to a
+ post in the FreeRTOS support forum before reporting this as a bug! -
+ http://goo.gl/wu4acr */
+ ++uxSchedulerSuspended;
+ portMEMORY_BARRIER();
}
/*----------------------------------------------------------*/
#if ( configUSE_TICKLESS_IDLE != 0 )
- static TickType_t prvGetExpectedIdleTime( void )
- {
- TickType_t xReturn;
- UBaseType_t uxHigherPriorityReadyTasks = pdFALSE;
+ static TickType_t prvGetExpectedIdleTime( void )
+ {
+ TickType_t xReturn;
+ UBaseType_t uxHigherPriorityReadyTasks = pdFALSE;
- /* uxHigherPriorityReadyTasks takes care of the case where
- * configUSE_PREEMPTION is 0, so there may be tasks above the idle priority
- * task that are in the Ready state, even though the idle task is
- * running. */
- #if ( configUSE_PORT_OPTIMISED_TASK_SELECTION == 0 )
- {
- if( uxTopReadyPriority > tskIDLE_PRIORITY )
- {
- uxHigherPriorityReadyTasks = pdTRUE;
- }
- }
- #else
- {
- const UBaseType_t uxLeastSignificantBit = ( UBaseType_t ) 0x01;
+ /* uxHigherPriorityReadyTasks takes care of the case where
+ configUSE_PREEMPTION is 0, so there may be tasks above the idle priority
+ task that are in the Ready state, even though the idle task is
+ running. */
+ #if( configUSE_PORT_OPTIMISED_TASK_SELECTION == 0 )
+ {
+ if( uxTopReadyPriority > tskIDLE_PRIORITY )
+ {
+ uxHigherPriorityReadyTasks = pdTRUE;
+ }
+ }
+ #else
+ {
+ const UBaseType_t uxLeastSignificantBit = ( UBaseType_t ) 0x01;
- /* When port optimised task selection is used the uxTopReadyPriority
- * variable is used as a bit map. If bits other than the least
- * significant bit are set then there are tasks that have a priority
- * above the idle priority that are in the Ready state. This takes
- * care of the case where the co-operative scheduler is in use. */
- if( uxTopReadyPriority > uxLeastSignificantBit )
- {
- uxHigherPriorityReadyTasks = pdTRUE;
- }
- }
- #endif /* if ( configUSE_PORT_OPTIMISED_TASK_SELECTION == 0 ) */
+ /* When port optimised task selection is used the uxTopReadyPriority
+ variable is used as a bit map. If bits other than the least
+ significant bit are set then there are tasks that have a priority
+ above the idle priority that are in the Ready state. This takes
+ care of the case where the co-operative scheduler is in use. */
+ if( uxTopReadyPriority > uxLeastSignificantBit )
+ {
+ uxHigherPriorityReadyTasks = pdTRUE;
+ }
+ }
+ #endif
- if( pxCurrentTCB->uxPriority > tskIDLE_PRIORITY )
- {
- xReturn = 0;
- }
- else if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ tskIDLE_PRIORITY ] ) ) > 1 )
- {
- /* There are other idle priority tasks in the ready state. If
- * time slicing is used then the very next tick interrupt must be
- * processed. */
- xReturn = 0;
- }
- else if( uxHigherPriorityReadyTasks != pdFALSE )
- {
- /* There are tasks in the Ready state that have a priority above the
- * idle priority. This path can only be reached if
- * configUSE_PREEMPTION is 0. */
- xReturn = 0;
- }
- else
- {
- xReturn = xNextTaskUnblockTime - xTickCount;
- }
+ if( pxCurrentTCB->uxPriority > tskIDLE_PRIORITY )
+ {
+ xReturn = 0;
+ }
+ else if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ tskIDLE_PRIORITY ] ) ) > 1 )
+ {
+ /* There are other idle priority tasks in the ready state. If
+ time slicing is used then the very next tick interrupt must be
+ processed. */
+ xReturn = 0;
+ }
+ else if( uxHigherPriorityReadyTasks != pdFALSE )
+ {
+ /* There are tasks in the Ready state that have a priority above the
+ idle priority. This path can only be reached if
+ configUSE_PREEMPTION is 0. */
+ xReturn = 0;
+ }
+ else
+ {
+ xReturn = xNextTaskUnblockTime - xTickCount;
+ }
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_TICKLESS_IDLE */
/*----------------------------------------------------------*/
BaseType_t xTaskResumeAll( void )
{
- TCB_t * pxTCB = NULL;
- BaseType_t xAlreadyYielded = pdFALSE;
+TCB_t *pxTCB = NULL;
+BaseType_t xAlreadyYielded = pdFALSE;
- /* If uxSchedulerSuspended is zero then this function does not match a
- * previous call to vTaskSuspendAll(). */
- configASSERT( uxSchedulerSuspended );
+ /* If uxSchedulerSuspended is zero then this function does not match a
+ previous call to vTaskSuspendAll(). */
+ configASSERT( uxSchedulerSuspended );
- /* It is possible that an ISR caused a task to be removed from an event
- * list while the scheduler was suspended. If this was the case then the
- * removed task will have been added to the xPendingReadyList. Once the
- * scheduler has been resumed it is safe to move all the pending ready
- * tasks from this list into their appropriate ready list. */
- taskENTER_CRITICAL();
- {
- --uxSchedulerSuspended;
+ /* It is possible that an ISR caused a task to be removed from an event
+ list while the scheduler was suspended. If this was the case then the
+ removed task will have been added to the xPendingReadyList. Once the
+ scheduler has been resumed it is safe to move all the pending ready
+ tasks from this list into their appropriate ready list. */
+ taskENTER_CRITICAL();
+ {
+ --uxSchedulerSuspended;
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- if( uxCurrentNumberOfTasks > ( UBaseType_t ) 0U )
- {
- /* Move any readied tasks from the pending list into the
- * appropriate ready list. */
- while( listLIST_IS_EMPTY( &xPendingReadyList ) == pdFALSE )
- {
- pxTCB = listGET_OWNER_OF_HEAD_ENTRY( ( &xPendingReadyList ) ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- listREMOVE_ITEM( &( pxTCB->xEventListItem ) );
- portMEMORY_BARRIER();
- listREMOVE_ITEM( &( pxTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxTCB );
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ if( uxCurrentNumberOfTasks > ( UBaseType_t ) 0U )
+ {
+ /* Move any readied tasks from the pending list into the
+ appropriate ready list. */
+ while( listLIST_IS_EMPTY( &xPendingReadyList ) == pdFALSE )
+ {
+ pxTCB = listGET_OWNER_OF_HEAD_ENTRY( ( &xPendingReadyList ) ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxTCB );
- /* If the moved task has a priority higher than or equal to
- * the current task then a yield must be performed. */
- if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
- {
- xYieldPending = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ /* If the moved task has a priority higher than the current
+ task then a yield must be performed. */
+ if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
+ {
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- if( pxTCB != NULL )
- {
- /* A task was unblocked while the scheduler was suspended,
- * which may have prevented the next unblock time from being
- * re-calculated, in which case re-calculate it now. Mainly
- * important for low power tickless implementations, where
- * this can prevent an unnecessary exit from low power
- * state. */
- prvResetNextTaskUnblockTime();
- }
+ if( pxTCB != NULL )
+ {
+ /* A task was unblocked while the scheduler was suspended,
+ which may have prevented the next unblock time from being
+ re-calculated, in which case re-calculate it now. Mainly
+ important for low power tickless implementations, where
+ this can prevent an unnecessary exit from low power
+ state. */
+ prvResetNextTaskUnblockTime();
+ }
- /* If any ticks occurred while the scheduler was suspended then
- * they should be processed now. This ensures the tick count does
- * not slip, and that any delayed tasks are resumed at the correct
- * time. */
- {
- TickType_t xPendedCounts = xPendedTicks; /* Non-volatile copy. */
+ /* If any ticks occurred while the scheduler was suspended then
+ they should be processed now. This ensures the tick count does
+ not slip, and that any delayed tasks are resumed at the correct
+ time. */
+ {
+ UBaseType_t uxPendedCounts = uxPendedTicks; /* Non-volatile copy. */
- if( xPendedCounts > ( TickType_t ) 0U )
- {
- do
- {
- if( xTaskIncrementTick() != pdFALSE )
- {
- xYieldPending = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ if( uxPendedCounts > ( UBaseType_t ) 0U )
+ {
+ do
+ {
+ if( xTaskIncrementTick() != pdFALSE )
+ {
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ --uxPendedCounts;
+ } while( uxPendedCounts > ( UBaseType_t ) 0U );
- --xPendedCounts;
- } while( xPendedCounts > ( TickType_t ) 0U );
+ uxPendedTicks = 0;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- xPendedTicks = 0;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ if( xYieldPending != pdFALSE )
+ {
+ #if( configUSE_PREEMPTION != 0 )
+ {
+ xAlreadyYielded = pdTRUE;
+ }
+ #endif
+ taskYIELD_IF_USING_PREEMPTION();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ taskEXIT_CRITICAL();
- if( xYieldPending != pdFALSE )
- {
- #if ( configUSE_PREEMPTION != 0 )
- {
- xAlreadyYielded = pdTRUE;
- }
- #endif
- taskYIELD_IF_USING_PREEMPTION();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
-
- return xAlreadyYielded;
+ return xAlreadyYielded;
}
/*-----------------------------------------------------------*/
TickType_t xTaskGetTickCount( void )
{
- TickType_t xTicks;
+TickType_t xTicks;
- /* Critical section required if running on a 16 bit processor. */
- portTICK_TYPE_ENTER_CRITICAL();
- {
- xTicks = xTickCount;
- }
- portTICK_TYPE_EXIT_CRITICAL();
+ /* Critical section required if running on a 16 bit processor. */
+ portTICK_TYPE_ENTER_CRITICAL();
+ {
+ xTicks = xTickCount;
+ }
+ portTICK_TYPE_EXIT_CRITICAL();
- return xTicks;
+ return xTicks;
}
/*-----------------------------------------------------------*/
TickType_t xTaskGetTickCountFromISR( void )
{
- TickType_t xReturn;
- UBaseType_t uxSavedInterruptStatus;
+TickType_t xReturn;
+UBaseType_t uxSavedInterruptStatus;
- /* RTOS ports that support interrupt nesting have the concept of a maximum
- * system call (or maximum API call) interrupt priority. Interrupts that are
- * above the maximum system call priority are kept permanently enabled, even
- * when the RTOS kernel is in a critical section, but cannot make any calls to
- * FreeRTOS API functions. If configASSERT() is defined in FreeRTOSConfig.h
- * then portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
- * failure if a FreeRTOS API function is called from an interrupt that has been
- * assigned a priority above the configured maximum system call priority.
- * Only FreeRTOS functions that end in FromISR can be called from interrupts
- * that have been assigned a priority at or (logically) below the maximum
- * system call interrupt priority. FreeRTOS maintains a separate interrupt
- * safe API to ensure interrupt entry is as fast and as simple as possible.
- * More information (albeit Cortex-M specific) is provided on the following
- * link: https://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html */
- portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
+ /* RTOS ports that support interrupt nesting have the concept of a maximum
+ system call (or maximum API call) interrupt priority. Interrupts that are
+ above the maximum system call priority are kept permanently enabled, even
+ when the RTOS kernel is in a critical section, but cannot make any calls to
+ FreeRTOS API functions. If configASSERT() is defined in FreeRTOSConfig.h
+ then portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
+ failure if a FreeRTOS API function is called from an interrupt that has been
+ assigned a priority above the configured maximum system call priority.
+ Only FreeRTOS functions that end in FromISR can be called from interrupts
+ that have been assigned a priority at or (logically) below the maximum
+ system call interrupt priority. FreeRTOS maintains a separate interrupt
+ safe API to ensure interrupt entry is as fast and as simple as possible.
+ More information (albeit Cortex-M specific) is provided on the following
+ link: https://www.freertos.org/RTOS-Cortex-M3-M4.html */
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
- uxSavedInterruptStatus = portTICK_TYPE_SET_INTERRUPT_MASK_FROM_ISR();
- {
- xReturn = xTickCount;
- }
- portTICK_TYPE_CLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
+ uxSavedInterruptStatus = portTICK_TYPE_SET_INTERRUPT_MASK_FROM_ISR();
+ {
+ xReturn = xTickCount;
+ }
+ portTICK_TYPE_CLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
- return xReturn;
+ return xReturn;
}
/*-----------------------------------------------------------*/
UBaseType_t uxTaskGetNumberOfTasks( void )
{
- /* A critical section is not required because the variables are of type
- * BaseType_t. */
- return uxCurrentNumberOfTasks;
+ /* A critical section is not required because the variables are of type
+ BaseType_t. */
+ return uxCurrentNumberOfTasks;
}
/*-----------------------------------------------------------*/
-char * pcTaskGetName( TaskHandle_t xTaskToQuery ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+char *pcTaskGetName( TaskHandle_t xTaskToQuery ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
{
- TCB_t * pxTCB;
+TCB_t *pxTCB;
- /* If null is passed in here then the name of the calling task is being
- * queried. */
- pxTCB = prvGetTCBFromHandle( xTaskToQuery );
- configASSERT( pxTCB );
- return &( pxTCB->pcTaskName[ 0 ] );
+ /* If null is passed in here then the name of the calling task is being
+ queried. */
+ pxTCB = prvGetTCBFromHandle( xTaskToQuery );
+#ifdef CONFIG_DMALLOC
+ if (pxTCB == NULL)
+ return NULL;
+#else
+ configASSERT( pxTCB );
+#endif
+ return &( pxTCB->pcTaskName[ 0 ] );
}
-/*-----------------------------------------------------------*/
#if ( INCLUDE_xTaskGetHandle == 1 )
- static TCB_t * prvSearchForNameWithinSingleList( List_t * pxList,
- const char pcNameToQuery[] )
- {
- TCB_t * pxNextTCB;
- TCB_t * pxFirstTCB;
- TCB_t * pxReturn = NULL;
- UBaseType_t x;
- char cNextChar;
- BaseType_t xBreakLoop;
+ static TCB_t *prvSearchForNameWithinSingleList( List_t *pxList, const char pcNameToQuery[] )
+ {
+ TCB_t *pxNextTCB, *pxFirstTCB, *pxReturn = NULL;
+ UBaseType_t x;
+ char cNextChar;
+ BaseType_t xBreakLoop;
- /* This function is called with the scheduler suspended. */
+ /* This function is called with the scheduler suspended. */
- if( listCURRENT_LIST_LENGTH( pxList ) > ( UBaseType_t ) 0 )
- {
- listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ if( listCURRENT_LIST_LENGTH( pxList ) > ( UBaseType_t ) 0 )
+ {
+ listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- do
- {
- listGET_OWNER_OF_NEXT_ENTRY( pxNextTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ do
+ {
+ listGET_OWNER_OF_NEXT_ENTRY( pxNextTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- /* Check each character in the name looking for a match or
- * mismatch. */
- xBreakLoop = pdFALSE;
+ /* Check each character in the name looking for a match or
+ mismatch. */
+ xBreakLoop = pdFALSE;
+ for( x = ( UBaseType_t ) 0; x < ( UBaseType_t ) configMAX_TASK_NAME_LEN; x++ )
+ {
+ cNextChar = pxNextTCB->pcTaskName[ x ];
- for( x = ( UBaseType_t ) 0; x < ( UBaseType_t ) configMAX_TASK_NAME_LEN; x++ )
- {
- cNextChar = pxNextTCB->pcTaskName[ x ];
+ if( cNextChar != pcNameToQuery[ x ] )
+ {
+ /* Characters didn't match. */
+ xBreakLoop = pdTRUE;
+ }
+ else if( cNextChar == ( char ) 0x00 )
+ {
+ /* Both strings terminated, a match must have been
+ found. */
+ pxReturn = pxNextTCB;
+ xBreakLoop = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- if( cNextChar != pcNameToQuery[ x ] )
- {
- /* Characters didn't match. */
- xBreakLoop = pdTRUE;
- }
- else if( cNextChar == ( char ) 0x00 )
- {
- /* Both strings terminated, a match must have been
- * found. */
- pxReturn = pxNextTCB;
- xBreakLoop = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ if( xBreakLoop != pdFALSE )
+ {
+ break;
+ }
+ }
- if( xBreakLoop != pdFALSE )
- {
- break;
- }
- }
+ if( pxReturn != NULL )
+ {
+ /* The handle has been found. */
+ break;
+ }
- if( pxReturn != NULL )
- {
- /* The handle has been found. */
- break;
- }
- } while( pxNextTCB != pxFirstTCB );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ } while( pxNextTCB != pxFirstTCB );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- return pxReturn;
- }
+ return pxReturn;
+ }
#endif /* INCLUDE_xTaskGetHandle */
/*-----------------------------------------------------------*/
#if ( INCLUDE_xTaskGetHandle == 1 )
- TaskHandle_t xTaskGetHandle( const char * pcNameToQuery ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
- {
- UBaseType_t uxQueue = configMAX_PRIORITIES;
- TCB_t * pxTCB;
+ TaskHandle_t xTaskGetHandle( const char *pcNameToQuery ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+ {
+ UBaseType_t uxQueue = configMAX_PRIORITIES;
+ TCB_t* pxTCB;
- /* Task names will be truncated to configMAX_TASK_NAME_LEN - 1 bytes. */
- configASSERT( strlen( pcNameToQuery ) < configMAX_TASK_NAME_LEN );
+ /* Task names will be truncated to configMAX_TASK_NAME_LEN - 1 bytes. */
+ configASSERT( strlen( pcNameToQuery ) < configMAX_TASK_NAME_LEN );
- vTaskSuspendAll();
- {
- /* Search the ready lists. */
- do
- {
- uxQueue--;
- pxTCB = prvSearchForNameWithinSingleList( ( List_t * ) &( pxReadyTasksLists[ uxQueue ] ), pcNameToQuery );
+ vTaskSuspendAll();
+ {
+ /* Search the ready lists. */
+ do
+ {
+ uxQueue--;
+ pxTCB = prvSearchForNameWithinSingleList( ( List_t * ) &( pxReadyTasksLists[ uxQueue ] ), pcNameToQuery );
- if( pxTCB != NULL )
- {
- /* Found the handle. */
- break;
- }
- } while( uxQueue > ( UBaseType_t ) tskIDLE_PRIORITY ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ if( pxTCB != NULL )
+ {
+ /* Found the handle. */
+ break;
+ }
- /* Search the delayed lists. */
- if( pxTCB == NULL )
- {
- pxTCB = prvSearchForNameWithinSingleList( ( List_t * ) pxDelayedTaskList, pcNameToQuery );
- }
+ } while( uxQueue > ( UBaseType_t ) tskIDLE_PRIORITY ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- if( pxTCB == NULL )
- {
- pxTCB = prvSearchForNameWithinSingleList( ( List_t * ) pxOverflowDelayedTaskList, pcNameToQuery );
- }
+ /* Search the delayed lists. */
+ if( pxTCB == NULL )
+ {
+ pxTCB = prvSearchForNameWithinSingleList( ( List_t * ) pxDelayedTaskList, pcNameToQuery );
+ }
- #if ( INCLUDE_vTaskSuspend == 1 )
- {
- if( pxTCB == NULL )
- {
- /* Search the suspended list. */
- pxTCB = prvSearchForNameWithinSingleList( &xSuspendedTaskList, pcNameToQuery );
- }
- }
- #endif
+ if( pxTCB == NULL )
+ {
+ pxTCB = prvSearchForNameWithinSingleList( ( List_t * ) pxOverflowDelayedTaskList, pcNameToQuery );
+ }
- #if ( INCLUDE_vTaskDelete == 1 )
- {
- if( pxTCB == NULL )
- {
- /* Search the deleted list. */
- pxTCB = prvSearchForNameWithinSingleList( &xTasksWaitingTermination, pcNameToQuery );
- }
- }
- #endif
- }
- ( void ) xTaskResumeAll();
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ {
+ if( pxTCB == NULL )
+ {
+ /* Search the suspended list. */
+ pxTCB = prvSearchForNameWithinSingleList( &xSuspendedTaskList, pcNameToQuery );
+ }
+ }
+ #endif
- return pxTCB;
- }
+ #if( INCLUDE_vTaskDelete == 1 )
+ {
+ if( pxTCB == NULL )
+ {
+ /* Search the deleted list. */
+ pxTCB = prvSearchForNameWithinSingleList( &xTasksWaitingTermination, pcNameToQuery );
+ }
+ }
+ #endif
+ }
+ ( void ) xTaskResumeAll();
+
+ return pxTCB;
+ }
#endif /* INCLUDE_xTaskGetHandle */
/*-----------------------------------------------------------*/
#if ( configUSE_TRACE_FACILITY == 1 )
- UBaseType_t uxTaskGetSystemState( TaskStatus_t * const pxTaskStatusArray,
- const UBaseType_t uxArraySize,
- configRUN_TIME_COUNTER_TYPE * const pulTotalRunTime )
- {
- UBaseType_t uxTask = 0, uxQueue = configMAX_PRIORITIES;
+ UBaseType_t uxTaskGetSystemState( TaskStatus_t * const pxTaskStatusArray, const UBaseType_t uxArraySize, uint32_t * const pulTotalRunTime )
+ {
+ UBaseType_t uxTask = 0, uxQueue = configMAX_PRIORITIES;
- vTaskSuspendAll();
- {
- /* Is there a space in the array for each task in the system? */
- if( uxArraySize >= uxCurrentNumberOfTasks )
- {
- /* Fill in an TaskStatus_t structure with information on each
- * task in the Ready state. */
- do
- {
- uxQueue--;
- uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &( pxReadyTasksLists[ uxQueue ] ), eReady );
- } while( uxQueue > ( UBaseType_t ) tskIDLE_PRIORITY ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ vTaskSuspendAll();
+ {
+ /* Is there a space in the array for each task in the system? */
+ if( uxArraySize >= uxCurrentNumberOfTasks )
+ {
+ /* Fill in an TaskStatus_t structure with information on each
+ task in the Ready state. */
+ do
+ {
+ uxQueue--;
+ uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &( pxReadyTasksLists[ uxQueue ] ), eReady );
- /* Fill in an TaskStatus_t structure with information on each
- * task in the Blocked state. */
- uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), ( List_t * ) pxDelayedTaskList, eBlocked );
- uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), ( List_t * ) pxOverflowDelayedTaskList, eBlocked );
+ } while( uxQueue > ( UBaseType_t ) tskIDLE_PRIORITY ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- #if ( INCLUDE_vTaskDelete == 1 )
- {
- /* Fill in an TaskStatus_t structure with information on
- * each task that has been deleted but not yet cleaned up. */
- uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &xTasksWaitingTermination, eDeleted );
- }
- #endif
+ /* Fill in an TaskStatus_t structure with information on each
+ task in the Blocked state. */
+ uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), ( List_t * ) pxDelayedTaskList, eBlocked );
+ uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), ( List_t * ) pxOverflowDelayedTaskList, eBlocked );
- #if ( INCLUDE_vTaskSuspend == 1 )
- {
- /* Fill in an TaskStatus_t structure with information on
- * each task in the Suspended state. */
- uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &xSuspendedTaskList, eSuspended );
- }
- #endif
+ #if( INCLUDE_vTaskDelete == 1 )
+ {
+ /* Fill in an TaskStatus_t structure with information on
+ each task that has been deleted but not yet cleaned up. */
+ uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &xTasksWaitingTermination, eDeleted );
+ }
+ #endif
- #if ( configGENERATE_RUN_TIME_STATS == 1 )
- {
- if( pulTotalRunTime != NULL )
- {
- #ifdef portALT_GET_RUN_TIME_COUNTER_VALUE
- portALT_GET_RUN_TIME_COUNTER_VALUE( ( *pulTotalRunTime ) );
- #else
- *pulTotalRunTime = portGET_RUN_TIME_COUNTER_VALUE();
- #endif
- }
- }
- #else /* if ( configGENERATE_RUN_TIME_STATS == 1 ) */
- {
- if( pulTotalRunTime != NULL )
- {
- *pulTotalRunTime = 0;
- }
- }
- #endif /* if ( configGENERATE_RUN_TIME_STATS == 1 ) */
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- ( void ) xTaskResumeAll();
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ {
+ /* Fill in an TaskStatus_t structure with information on
+ each task in the Suspended state. */
+ uxTask += prvListTasksWithinSingleList( &( pxTaskStatusArray[ uxTask ] ), &xSuspendedTaskList, eSuspended );
+ }
+ #endif
- return uxTask;
- }
+ #if ( configGENERATE_RUN_TIME_STATS == 1)
+ {
+ if( pulTotalRunTime != NULL )
+ {
+ #ifdef portALT_GET_RUN_TIME_COUNTER_VALUE
+ portALT_GET_RUN_TIME_COUNTER_VALUE( ( *pulTotalRunTime ) );
+ #else
+ *pulTotalRunTime = (uint32_t)portGET_RUN_TIME_COUNTER_VALUE();
+ #endif
+ }
+ }
+ #else
+ {
+ if( pulTotalRunTime != NULL )
+ {
+ *pulTotalRunTime = 0;
+ }
+ }
+ #endif
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ ( void ) xTaskResumeAll();
+
+ return uxTask;
+ }
#endif /* configUSE_TRACE_FACILITY */
/*----------------------------------------------------------*/
#if ( INCLUDE_xTaskGetIdleTaskHandle == 1 )
- TaskHandle_t xTaskGetIdleTaskHandle( void )
- {
- /* If xTaskGetIdleTaskHandle() is called before the scheduler has been
- * started, then xIdleTaskHandle will be NULL. */
- configASSERT( ( xIdleTaskHandle != NULL ) );
- return xIdleTaskHandle;
- }
+ TaskHandle_t xTaskGetIdleTaskHandle( void )
+ {
+ /* If xTaskGetIdleTaskHandle() is called before the scheduler has been
+ started, then xIdleTaskHandle will be NULL. */
+ configASSERT( ( xIdleTaskHandle != NULL ) );
+ return xIdleTaskHandle;
+ }
#endif /* INCLUDE_xTaskGetIdleTaskHandle */
/*----------------------------------------------------------*/
/* This conditional compilation should use inequality to 0, not equality to 1.
- * This is to ensure vTaskStepTick() is available when user defined low power mode
- * implementations require configUSE_TICKLESS_IDLE to be set to a value other than
- * 1. */
+This is to ensure vTaskStepTick() is available when user defined low power mode
+implementations require configUSE_TICKLESS_IDLE to be set to a value other than
+1. */
#if ( configUSE_TICKLESS_IDLE != 0 )
- void vTaskStepTick( TickType_t xTicksToJump )
- {
- /* Correct the tick count value after a period during which the tick
- * was suppressed. Note this does *not* call the tick hook function for
- * each stepped tick. */
- configASSERT( ( xTickCount + xTicksToJump ) <= xNextTaskUnblockTime );
-
- if( ( xTickCount + xTicksToJump ) == xNextTaskUnblockTime )
- {
- /* Arrange for xTickCount to reach xNextTaskUnblockTime in
- * xTaskIncrementTick() when the scheduler resumes. This ensures
- * that any delayed tasks are resumed at the correct time. */
- configASSERT( uxSchedulerSuspended );
- configASSERT( xTicksToJump != ( TickType_t ) 0 );
-
- /* Prevent the tick interrupt modifying xPendedTicks simultaneously. */
- taskENTER_CRITICAL();
- {
- xPendedTicks++;
- }
- taskEXIT_CRITICAL();
- xTicksToJump--;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
-
- xTickCount += xTicksToJump;
- traceINCREASE_TICK_COUNT( xTicksToJump );
- }
+ void vTaskStepTick( const TickType_t xTicksToJump )
+ {
+ /* Correct the tick count value after a period during which the tick
+ was suppressed. Note this does *not* call the tick hook function for
+ each stepped tick. */
+ configASSERT( ( xTickCount + xTicksToJump ) <= xNextTaskUnblockTime );
+ xTickCount += xTicksToJump;
+ traceINCREASE_TICK_COUNT( xTicksToJump );
+ }
#endif /* configUSE_TICKLESS_IDLE */
/*----------------------------------------------------------*/
-BaseType_t xTaskCatchUpTicks( TickType_t xTicksToCatchUp )
-{
- BaseType_t xYieldOccurred;
-
- /* Must not be called with the scheduler suspended as the implementation
- * relies on xPendedTicks being wound down to 0 in xTaskResumeAll(). */
- configASSERT( uxSchedulerSuspended == 0 );
-
- /* Use xPendedTicks to mimic xTicksToCatchUp number of ticks occurring when
- * the scheduler is suspended so the ticks are executed in xTaskResumeAll(). */
- vTaskSuspendAll();
-
- /* Prevent the tick interrupt modifying xPendedTicks simultaneously. */
- taskENTER_CRITICAL();
- {
- xPendedTicks += xTicksToCatchUp;
- }
- taskEXIT_CRITICAL();
- xYieldOccurred = xTaskResumeAll();
-
- return xYieldOccurred;
-}
-/*----------------------------------------------------------*/
-
#if ( INCLUDE_xTaskAbortDelay == 1 )
- BaseType_t xTaskAbortDelay( TaskHandle_t xTask )
- {
- TCB_t * pxTCB = xTask;
- BaseType_t xReturn;
+ BaseType_t xTaskAbortDelay( TaskHandle_t xTask )
+ {
+ TCB_t *pxTCB = xTask;
+ BaseType_t xReturn;
- configASSERT( pxTCB );
+ configASSERT( pxTCB );
- vTaskSuspendAll();
- {
- /* A task can only be prematurely removed from the Blocked state if
- * it is actually in the Blocked state. */
- if( eTaskGetState( xTask ) == eBlocked )
- {
- xReturn = pdPASS;
+ vTaskSuspendAll();
+ {
+ /* A task can only be prematurely removed from the Blocked state if
+ it is actually in the Blocked state. */
+ if( eTaskGetState( xTask ) == eBlocked )
+ {
+ xReturn = pdPASS;
- /* Remove the reference to the task from the blocked list. An
- * interrupt won't touch the xStateListItem because the
- * scheduler is suspended. */
- ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ /* Remove the reference to the task from the blocked list. An
+ interrupt won't touch the xStateListItem because the
+ scheduler is suspended. */
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
- /* Is the task waiting on an event also? If so remove it from
- * the event list too. Interrupts can touch the event list item,
- * even though the scheduler is suspended, so a critical section
- * is used. */
- taskENTER_CRITICAL();
- {
- if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
- {
- ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
+ /* Is the task waiting on an event also? If so remove it from
+ the event list too. Interrupts can touch the event list item,
+ even though the scheduler is suspended, so a critical section
+ is used. */
+ taskENTER_CRITICAL();
+ {
+ if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
+ {
+ ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
+ pxTCB->ucDelayAborted = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ taskEXIT_CRITICAL();
- /* This lets the task know it was forcibly removed from the
- * blocked state so it should not re-evaluate its block time and
- * then block again. */
- pxTCB->ucDelayAborted = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
+ /* Place the unblocked task into the appropriate ready list. */
+ prvAddTaskToReadyList( pxTCB );
- /* Place the unblocked task into the appropriate ready list. */
- prvAddTaskToReadyList( pxTCB );
+ /* A task being unblocked cannot cause an immediate context
+ switch if preemption is turned off. */
+ #if ( configUSE_PREEMPTION == 1 )
+ {
+ /* Preemption is on, but a context switch should only be
+ performed if the unblocked task has a priority that is
+ equal to or higher than the currently executing task. */
+ if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
+ {
+ /* Pend the yield to be performed when the scheduler
+ is unsuspended. */
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configUSE_PREEMPTION */
+ }
+ else
+ {
+ xReturn = pdFAIL;
+ }
+ }
+ ( void ) xTaskResumeAll();
- /* A task being unblocked cannot cause an immediate context
- * switch if preemption is turned off. */
- #if ( configUSE_PREEMPTION == 1 )
- {
- /* Preemption is on, but a context switch should only be
- * performed if the unblocked task has a priority that is
- * higher than the currently executing task. */
- if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- /* Pend the yield to be performed when the scheduler
- * is unsuspended. */
- xYieldPending = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configUSE_PREEMPTION */
- }
- else
- {
- xReturn = pdFAIL;
- }
- }
- ( void ) xTaskResumeAll();
-
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* INCLUDE_xTaskAbortDelay */
/*----------------------------------------------------------*/
BaseType_t xTaskIncrementTick( void )
{
- TCB_t * pxTCB;
- TickType_t xItemValue;
- BaseType_t xSwitchRequired = pdFALSE;
+TCB_t * pxTCB;
+TickType_t xItemValue;
+BaseType_t xSwitchRequired = pdFALSE;
- /* Called by the portable layer each time a tick interrupt occurs.
- * Increments the tick then checks to see if the new tick value will cause any
- * tasks to be unblocked. */
- traceTASK_INCREMENT_TICK( xTickCount );
+ /* Called by the portable layer each time a tick interrupt occurs.
+ Increments the tick then checks to see if the new tick value will cause any
+ tasks to be unblocked. */
+ traceTASK_INCREMENT_TICK( xTickCount );
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ /* Minor optimisation. The tick count cannot change in this
+ block. */
+ const TickType_t xConstTickCount = xTickCount + ( TickType_t ) 1;
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- /* Minor optimisation. The tick count cannot change in this
- * block. */
- const TickType_t xConstTickCount = xTickCount + ( TickType_t ) 1;
+ /* Increment the RTOS tick, switching the delayed and overflowed
+ delayed lists if it wraps to 0. */
+ xTickCount = xConstTickCount;
- /* Increment the RTOS tick, switching the delayed and overflowed
- * delayed lists if it wraps to 0. */
- xTickCount = xConstTickCount;
+ if( xConstTickCount == ( TickType_t ) 0U ) /*lint !e774 'if' does not always evaluate to false as it is looking for an overflow. */
+ {
+ taskSWITCH_DELAYED_LISTS();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- if( xConstTickCount == ( TickType_t ) 0U ) /*lint !e774 'if' does not always evaluate to false as it is looking for an overflow. */
- {
- taskSWITCH_DELAYED_LISTS();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* See if this tick has made a timeout expire. Tasks are stored in
+ the queue in the order of their wake time - meaning once one task
+ has been found whose block time has not expired there is no need to
+ look any further down the list. */
+ if( xConstTickCount >= xNextTaskUnblockTime )
+ {
+ for( ;; )
+ {
+ if( listLIST_IS_EMPTY( pxDelayedTaskList ) != pdFALSE )
+ {
+ /* The delayed list is empty. Set xNextTaskUnblockTime
+ to the maximum possible value so it is extremely
+ unlikely that the
+ if( xTickCount >= xNextTaskUnblockTime ) test will pass
+ next time through. */
+ xNextTaskUnblockTime = portMAX_DELAY; /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ break;
+ }
+ else
+ {
+ /* The delayed list is not empty, get the value of the
+ item at the head of the delayed list. This is the time
+ at which the task at the head of the delayed list must
+ be removed from the Blocked state. */
+ pxTCB = listGET_OWNER_OF_HEAD_ENTRY( pxDelayedTaskList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ xItemValue = listGET_LIST_ITEM_VALUE( &( pxTCB->xStateListItem ) );
- /* See if this tick has made a timeout expire. Tasks are stored in
- * the queue in the order of their wake time - meaning once one task
- * has been found whose block time has not expired there is no need to
- * look any further down the list. */
- if( xConstTickCount >= xNextTaskUnblockTime )
- {
- for( ; ; )
- {
- if( listLIST_IS_EMPTY( pxDelayedTaskList ) != pdFALSE )
- {
- /* The delayed list is empty. Set xNextTaskUnblockTime
- * to the maximum possible value so it is extremely
- * unlikely that the
- * if( xTickCount >= xNextTaskUnblockTime ) test will pass
- * next time through. */
- xNextTaskUnblockTime = portMAX_DELAY; /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- break;
- }
- else
- {
- /* The delayed list is not empty, get the value of the
- * item at the head of the delayed list. This is the time
- * at which the task at the head of the delayed list must
- * be removed from the Blocked state. */
- pxTCB = listGET_OWNER_OF_HEAD_ENTRY( pxDelayedTaskList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- xItemValue = listGET_LIST_ITEM_VALUE( &( pxTCB->xStateListItem ) );
+ if( xConstTickCount < xItemValue )
+ {
+ /* It is not time to unblock this item yet, but the
+ item value is the time at which the task at the head
+ of the blocked list must be removed from the Blocked
+ state - so record the item value in
+ xNextTaskUnblockTime. */
+ xNextTaskUnblockTime = xItemValue;
+ break; /*lint !e9011 Code structure here is deedmed easier to understand with multiple breaks. */
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- if( xConstTickCount < xItemValue )
- {
- /* It is not time to unblock this item yet, but the
- * item value is the time at which the task at the head
- * of the blocked list must be removed from the Blocked
- * state - so record the item value in
- * xNextTaskUnblockTime. */
- xNextTaskUnblockTime = xItemValue;
- break; /*lint !e9011 Code structure here is deemed easier to understand with multiple breaks. */
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* It is time to remove the item from the Blocked state. */
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
- /* It is time to remove the item from the Blocked state. */
- listREMOVE_ITEM( &( pxTCB->xStateListItem ) );
+ /* Is the task waiting on an event also? If so remove
+ it from the event list. */
+ if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
+ {
+ ( void ) uxListRemove( &( pxTCB->xEventListItem ) );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Is the task waiting on an event also? If so remove
- * it from the event list. */
- if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
- {
- listREMOVE_ITEM( &( pxTCB->xEventListItem ) );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Place the unblocked task into the appropriate ready
+ list. */
+ prvAddTaskToReadyList( pxTCB );
- /* Place the unblocked task into the appropriate ready
- * list. */
- prvAddTaskToReadyList( pxTCB );
+ /* A task being unblocked cannot cause an immediate
+ context switch if preemption is turned off. */
+ #if ( configUSE_PREEMPTION == 1 )
+ {
+ /* Preemption is on, but a context switch should
+ only be performed if the unblocked task has a
+ priority that is equal to or higher than the
+ currently executing task. */
+ if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
+ {
+ xSwitchRequired = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configUSE_PREEMPTION */
+ }
+ }
+ }
- /* A task being unblocked cannot cause an immediate
- * context switch if preemption is turned off. */
- #if ( configUSE_PREEMPTION == 1 )
- {
- /* Preemption is on, but a context switch should
- * only be performed if the unblocked task's
- * priority is higher than the currently executing
- * task.
- * The case of equal priority tasks sharing
- * processing time (which happens when both
- * preemption and time slicing are on) is
- * handled below.*/
- if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- xSwitchRequired = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configUSE_PREEMPTION */
- }
- }
- }
+ /* Tasks of equal priority to the currently running task will share
+ processing time (time slice) if preemption is on, and the application
+ writer has not explicitly turned time slicing off. */
+ #if ( ( configUSE_PREEMPTION == 1 ) && ( configUSE_TIME_SLICING == 1 ) )
+ {
+ if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ pxCurrentTCB->uxPriority ] ) ) > ( UBaseType_t ) 1 )
+ {
+ xSwitchRequired = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* ( ( configUSE_PREEMPTION == 1 ) && ( configUSE_TIME_SLICING == 1 ) ) */
- /* Tasks of equal priority to the currently running task will share
- * processing time (time slice) if preemption is on, and the application
- * writer has not explicitly turned time slicing off. */
- #if ( ( configUSE_PREEMPTION == 1 ) && ( configUSE_TIME_SLICING == 1 ) )
- {
- if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ pxCurrentTCB->uxPriority ] ) ) > ( UBaseType_t ) 1 )
- {
- xSwitchRequired = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* ( ( configUSE_PREEMPTION == 1 ) && ( configUSE_TIME_SLICING == 1 ) ) */
+ #if ( configUSE_TICK_HOOK == 1 )
+ {
+ /* Guard against the tick hook being called when the pended tick
+ count is being unwound (when the scheduler is being unlocked). */
+ if( uxPendedTicks == ( UBaseType_t ) 0U )
+ {
+ vApplicationTickHook();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configUSE_TICK_HOOK */
+ }
+ else
+ {
+ ++uxPendedTicks;
- #if ( configUSE_TICK_HOOK == 1 )
- {
- /* Guard against the tick hook being called when the pended tick
- * count is being unwound (when the scheduler is being unlocked). */
- if( xPendedTicks == ( TickType_t ) 0 )
- {
- vApplicationTickHook();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configUSE_TICK_HOOK */
+ /* The tick hook gets called at regular intervals, even if the
+ scheduler is locked. */
+ #if ( configUSE_TICK_HOOK == 1 )
+ {
+ vApplicationTickHook();
+ }
+ #endif
+ }
- #if ( configUSE_PREEMPTION == 1 )
- {
- if( xYieldPending != pdFALSE )
- {
- xSwitchRequired = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configUSE_PREEMPTION */
- }
- else
- {
- ++xPendedTicks;
+ #if ( configUSE_PREEMPTION == 1 )
+ {
+ if( xYieldPending != pdFALSE )
+ {
+ xSwitchRequired = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configUSE_PREEMPTION */
- /* The tick hook gets called at regular intervals, even if the
- * scheduler is locked. */
- #if ( configUSE_TICK_HOOK == 1 )
- {
- vApplicationTickHook();
- }
- #endif
- }
-
- return xSwitchRequired;
+ return xSwitchRequired;
}
/*-----------------------------------------------------------*/
#if ( configUSE_APPLICATION_TASK_TAG == 1 )
- void vTaskSetApplicationTaskTag( TaskHandle_t xTask,
- TaskHookFunction_t pxHookFunction )
- {
- TCB_t * xTCB;
+ void vTaskSetApplicationTaskTag( TaskHandle_t xTask, TaskHookFunction_t pxHookFunction )
+ {
+ TCB_t *xTCB;
- /* If xTask is NULL then it is the task hook of the calling task that is
- * getting set. */
- if( xTask == NULL )
- {
- xTCB = ( TCB_t * ) pxCurrentTCB;
- }
- else
- {
- xTCB = xTask;
- }
+ /* If xTask is NULL then it is the task hook of the calling task that is
+ getting set. */
+ if( xTask == NULL )
+ {
+ xTCB = ( TCB_t * ) pxCurrentTCB;
+ }
+ else
+ {
+ xTCB = xTask;
+ }
- /* Save the hook function in the TCB. A critical section is required as
- * the value can be accessed from an interrupt. */
- taskENTER_CRITICAL();
- {
- xTCB->pxTaskTag = pxHookFunction;
- }
- taskEXIT_CRITICAL();
- }
+ /* Save the hook function in the TCB. A critical section is required as
+ the value can be accessed from an interrupt. */
+ taskENTER_CRITICAL();
+ {
+ xTCB->pxTaskTag = pxHookFunction;
+ }
+ taskEXIT_CRITICAL();
+ }
#endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/
#if ( configUSE_APPLICATION_TASK_TAG == 1 )
- TaskHookFunction_t xTaskGetApplicationTaskTag( TaskHandle_t xTask )
- {
- TCB_t * pxTCB;
- TaskHookFunction_t xReturn;
+ TaskHookFunction_t xTaskGetApplicationTaskTag( TaskHandle_t xTask )
+ {
+ TCB_t *pxTCB;
+ TaskHookFunction_t xReturn;
- /* If xTask is NULL then set the calling task's hook. */
- pxTCB = prvGetTCBFromHandle( xTask );
+ /* If xTask is NULL then set the calling task's hook. */
+ pxTCB = prvGetTCBFromHandle( xTask );
- /* Save the hook function in the TCB. A critical section is required as
- * the value can be accessed from an interrupt. */
- taskENTER_CRITICAL();
- {
- xReturn = pxTCB->pxTaskTag;
- }
- taskEXIT_CRITICAL();
+ /* Save the hook function in the TCB. A critical section is required as
+ the value can be accessed from an interrupt. */
+ taskENTER_CRITICAL();
+ {
+ xReturn = pxTCB->pxTaskTag;
+ }
+ taskEXIT_CRITICAL();
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/
#if ( configUSE_APPLICATION_TASK_TAG == 1 )
- TaskHookFunction_t xTaskGetApplicationTaskTagFromISR( TaskHandle_t xTask )
- {
- TCB_t * pxTCB;
- TaskHookFunction_t xReturn;
- UBaseType_t uxSavedInterruptStatus;
+ TaskHookFunction_t xTaskGetApplicationTaskTagFromISR( TaskHandle_t xTask )
+ {
+ TCB_t *pxTCB;
+ TaskHookFunction_t xReturn;
+ UBaseType_t uxSavedInterruptStatus;
- /* If xTask is NULL then set the calling task's hook. */
- pxTCB = prvGetTCBFromHandle( xTask );
+ /* If xTask is NULL then set the calling task's hook. */
+ pxTCB = prvGetTCBFromHandle( xTask );
- /* Save the hook function in the TCB. A critical section is required as
- * the value can be accessed from an interrupt. */
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
- {
- xReturn = pxTCB->pxTaskTag;
- }
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
+ /* Save the hook function in the TCB. A critical section is required as
+ the value can be accessed from an interrupt. */
+ uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
+ {
+ xReturn = pxTCB->pxTaskTag;
+ }
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/
#if ( configUSE_APPLICATION_TASK_TAG == 1 )
- BaseType_t xTaskCallApplicationTaskHook( TaskHandle_t xTask,
- void * pvParameter )
- {
- TCB_t * xTCB;
- BaseType_t xReturn;
+ BaseType_t xTaskCallApplicationTaskHook( TaskHandle_t xTask, void *pvParameter )
+ {
+ TCB_t *xTCB;
+ BaseType_t xReturn;
- /* If xTask is NULL then we are calling our own task hook. */
- if( xTask == NULL )
- {
- xTCB = pxCurrentTCB;
- }
- else
- {
- xTCB = xTask;
- }
+ /* If xTask is NULL then we are calling our own task hook. */
+ if( xTask == NULL )
+ {
+ xTCB = pxCurrentTCB;
+ }
+ else
+ {
+ xTCB = xTask;
+ }
- if( xTCB->pxTaskTag != NULL )
- {
- xReturn = xTCB->pxTaskTag( pvParameter );
- }
- else
- {
- xReturn = pdFAIL;
- }
+ if( xTCB->pxTaskTag != NULL )
+ {
+ xReturn = xTCB->pxTaskTag( pvParameter );
+ }
+ else
+ {
+ xReturn = pdFAIL;
+ }
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/
void vTaskSwitchContext( void )
{
- if( uxSchedulerSuspended != ( UBaseType_t ) pdFALSE )
- {
- /* The scheduler is currently suspended - do not allow a context
- * switch. */
- xYieldPending = pdTRUE;
- }
- else
- {
- xYieldPending = pdFALSE;
- traceTASK_SWITCHED_OUT();
+ if( uxSchedulerSuspended != ( UBaseType_t ) pdFALSE )
+ {
+ /* The scheduler is currently suspended - do not allow a context
+ switch. */
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ xYieldPending = pdFALSE;
+ traceTASK_SWITCHED_OUT();
- #if ( configGENERATE_RUN_TIME_STATS == 1 )
- {
- #ifdef portALT_GET_RUN_TIME_COUNTER_VALUE
- portALT_GET_RUN_TIME_COUNTER_VALUE( ulTotalRunTime );
- #else
- ulTotalRunTime = portGET_RUN_TIME_COUNTER_VALUE();
- #endif
+ #if ( configGENERATE_RUN_TIME_STATS == 1 )
+ {
+ #ifdef portALT_GET_RUN_TIME_COUNTER_VALUE
+ portALT_GET_RUN_TIME_COUNTER_VALUE( ulTotalRunTime );
+ #else
+ ulTotalRunTime = (uint32_t)portGET_RUN_TIME_COUNTER_VALUE();
+ #endif
- /* Add the amount of time the task has been running to the
- * accumulated time so far. The time the task started running was
- * stored in ulTaskSwitchedInTime. Note that there is no overflow
- * protection here so count values are only valid until the timer
- * overflows. The guard against negative values is to protect
- * against suspect run time stat counter implementations - which
- * are provided by the application, not the kernel. */
- if( ulTotalRunTime > ulTaskSwitchedInTime )
- {
- pxCurrentTCB->ulRunTimeCounter += ( ulTotalRunTime - ulTaskSwitchedInTime );
+ /* Add the amount of time the task has been running to the
+ accumulated time so far. The time the task started running was
+ stored in ulTaskSwitchedInTime. Note that there is no overflow
+ protection here so count values are only valid until the timer
+ overflows. The guard against negative values is to protect
+ against suspect run time stat counter implementations - which
+ are provided by the application, not the kernel. */
+ if( ulTotalRunTime > ulTaskSwitchedInTime )
+ {
+ pxCurrentTCB->ulRunTimeCounter += ( ulTotalRunTime - ulTaskSwitchedInTime );
#if CONFIG_FTRACE
vTraceSwitchContext((uint32_t)pxCurrentTCB->uxTCBNumber);
#endif
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ ulTaskSwitchedInTime = ulTotalRunTime;
+ }
+ #endif /* configGENERATE_RUN_TIME_STATS */
- ulTaskSwitchedInTime = ulTotalRunTime;
- }
- #endif /* configGENERATE_RUN_TIME_STATS */
+ /* Check for stack overflow, if configured. */
+ taskCHECK_FOR_STACK_OVERFLOW();
- /* Check for stack overflow, if configured. */
- taskCHECK_FOR_STACK_OVERFLOW();
+ /* Before the currently running task is switched out, save its errno. */
+ #if( configUSE_POSIX_ERRNO == 1 )
+ {
+ pxCurrentTCB->iTaskErrno = FreeRTOS_errno;
+ }
+ #endif
- /* Before the currently running task is switched out, save its errno. */
- #if ( configUSE_POSIX_ERRNO == 1 )
- {
- pxCurrentTCB->iTaskErrno = FreeRTOS_errno;
- }
- #endif
+ /* Select a new task to run using either the generic C or port
+ optimised asm code. */
+ taskSELECT_HIGHEST_PRIORITY_TASK(); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ traceTASK_SWITCHED_IN();
- /* Select a new task to run using either the generic C or port
- * optimised asm code. */
- taskSELECT_HIGHEST_PRIORITY_TASK(); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- traceTASK_SWITCHED_IN();
+ /* After the new task is switched in, update the global errno. */
+ #if( configUSE_POSIX_ERRNO == 1 )
+ {
+ FreeRTOS_errno = pxCurrentTCB->iTaskErrno;
+ }
+ #endif
- /* After the new task is switched in, update the global errno. */
- #if ( configUSE_POSIX_ERRNO == 1 )
- {
- FreeRTOS_errno = pxCurrentTCB->iTaskErrno;
- }
- #endif
-
- #if ( ( configUSE_NEWLIB_REENTRANT == 1 ) || ( configUSE_C_RUNTIME_TLS_SUPPORT == 1 ) )
- {
- /* Switch C-Runtime's TLS Block to point to the TLS
- * Block specific to this task. */
- configSET_TLS_BLOCK( pxCurrentTCB->xTLSBlock );
- }
- #endif
- }
+ #if ( configUSE_NEWLIB_REENTRANT == 1 )
+ {
+ /* Switch Newlib's _impure_ptr variable to point to the _reent
+ structure specific to this task. */
+ _impure_ptr = &( pxCurrentTCB->xNewLib_reent );
+ }
+ #endif /* configUSE_NEWLIB_REENTRANT */
+ }
}
/*-----------------------------------------------------------*/
-void vTaskPlaceOnEventList( List_t * const pxEventList,
- const TickType_t xTicksToWait )
+void vTaskPlaceOnEventList( List_t * const pxEventList, const TickType_t xTicksToWait )
{
- configASSERT( pxEventList );
+ configASSERT( pxEventList );
- /* THIS FUNCTION MUST BE CALLED WITH EITHER INTERRUPTS DISABLED OR THE
- * SCHEDULER SUSPENDED AND THE QUEUE BEING ACCESSED LOCKED. */
+ /* THIS FUNCTION MUST BE CALLED WITH EITHER INTERRUPTS DISABLED OR THE
+ SCHEDULER SUSPENDED AND THE QUEUE BEING ACCESSED LOCKED. */
- /* Place the event list item of the TCB in the appropriate event list.
- * This is placed in the list in priority order so the highest priority task
- * is the first to be woken by the event.
- *
- * Note: Lists are sorted in ascending order by ListItem_t.xItemValue.
- * Normally, the xItemValue of a TCB's ListItem_t members is:
- * xItemValue = ( configMAX_PRIORITIES - uxPriority )
- * Therefore, the event list is sorted in descending priority order.
- *
- * The queue that contains the event list is locked, preventing
- * simultaneous access from interrupts. */
- vListInsert( pxEventList, &( pxCurrentTCB->xEventListItem ) );
+ /* Place the event list item of the TCB in the appropriate event list.
+ This is placed in the list in priority order so the highest priority task
+ is the first to be woken by the event. The queue that contains the event
+ list is locked, preventing simultaneous access from interrupts. */
+ vListInsert( pxEventList, &( pxCurrentTCB->xEventListItem ) );
- prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
+ prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
}
/*-----------------------------------------------------------*/
-void vTaskPlaceOnUnorderedEventList( List_t * pxEventList,
- const TickType_t xItemValue,
- const TickType_t xTicksToWait )
+void vTaskPlaceOnUnorderedEventList( List_t * pxEventList, const TickType_t xItemValue, const TickType_t xTicksToWait )
{
- configASSERT( pxEventList );
+ configASSERT( pxEventList );
- /* THIS FUNCTION MUST BE CALLED WITH THE SCHEDULER SUSPENDED. It is used by
- * the event groups implementation. */
- configASSERT( uxSchedulerSuspended != 0 );
+ /* THIS FUNCTION MUST BE CALLED WITH THE SCHEDULER SUSPENDED. It is used by
+ the event groups implementation. */
+ configASSERT( uxSchedulerSuspended != 0 );
- /* Store the item value in the event list item. It is safe to access the
- * event list item here as interrupts won't access the event list item of a
- * task that is not in the Blocked state. */
- listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xEventListItem ), xItemValue | taskEVENT_LIST_ITEM_VALUE_IN_USE );
+ /* Store the item value in the event list item. It is safe to access the
+ event list item here as interrupts won't access the event list item of a
+ task that is not in the Blocked state. */
+ listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xEventListItem ), xItemValue | taskEVENT_LIST_ITEM_VALUE_IN_USE );
- /* Place the event list item of the TCB at the end of the appropriate event
- * list. It is safe to access the event list here because it is part of an
- * event group implementation - and interrupts don't access event groups
- * directly (instead they access them indirectly by pending function calls to
- * the task level). */
- listINSERT_END( pxEventList, &( pxCurrentTCB->xEventListItem ) );
+ /* Place the event list item of the TCB at the end of the appropriate event
+ list. It is safe to access the event list here because it is part of an
+ event group implementation - and interrupts don't access event groups
+ directly (instead they access them indirectly by pending function calls to
+ the task level). */
+ vListInsertEnd( pxEventList, &( pxCurrentTCB->xEventListItem ) );
- prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
+ prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
}
/*-----------------------------------------------------------*/
-#if ( configUSE_TIMERS == 1 )
+#if( configUSE_TIMERS == 1 )
- void vTaskPlaceOnEventListRestricted( List_t * const pxEventList,
- TickType_t xTicksToWait,
- const BaseType_t xWaitIndefinitely )
- {
- configASSERT( pxEventList );
+ void vTaskPlaceOnEventListRestricted( List_t * const pxEventList, TickType_t xTicksToWait, const BaseType_t xWaitIndefinitely )
+ {
+ configASSERT( pxEventList );
- /* This function should not be called by application code hence the
- * 'Restricted' in its name. It is not part of the public API. It is
- * designed for use by kernel code, and has special calling requirements -
- * it should be called with the scheduler suspended. */
+ /* This function should not be called by application code hence the
+ 'Restricted' in its name. It is not part of the public API. It is
+ designed for use by kernel code, and has special calling requirements -
+ it should be called with the scheduler suspended. */
- /* Place the event list item of the TCB in the appropriate event list.
- * In this case it is assume that this is the only task that is going to
- * be waiting on this event list, so the faster vListInsertEnd() function
- * can be used in place of vListInsert. */
- listINSERT_END( pxEventList, &( pxCurrentTCB->xEventListItem ) );
+ /* Place the event list item of the TCB in the appropriate event list.
+ In this case it is assume that this is the only task that is going to
+ be waiting on this event list, so the faster vListInsertEnd() function
+ can be used in place of vListInsert. */
+ vListInsertEnd( pxEventList, &( pxCurrentTCB->xEventListItem ) );
- /* If the task should block indefinitely then set the block time to a
- * value that will be recognised as an indefinite delay inside the
- * prvAddCurrentTaskToDelayedList() function. */
- if( xWaitIndefinitely != pdFALSE )
- {
- xTicksToWait = portMAX_DELAY;
- }
+ /* If the task should block indefinitely then set the block time to a
+ value that will be recognised as an indefinite delay inside the
+ prvAddCurrentTaskToDelayedList() function. */
+ if( xWaitIndefinitely != pdFALSE )
+ {
+ xTicksToWait = portMAX_DELAY;
+ }
- traceTASK_DELAY_UNTIL( ( xTickCount + xTicksToWait ) );
- prvAddCurrentTaskToDelayedList( xTicksToWait, xWaitIndefinitely );
- }
+ traceTASK_DELAY_UNTIL( ( xTickCount + xTicksToWait ) );
+ prvAddCurrentTaskToDelayedList( xTicksToWait, xWaitIndefinitely );
+ }
#endif /* configUSE_TIMERS */
/*-----------------------------------------------------------*/
BaseType_t xTaskRemoveFromEventList( const List_t * const pxEventList )
{
- TCB_t * pxUnblockedTCB;
- BaseType_t xReturn;
+TCB_t *pxUnblockedTCB;
+BaseType_t xReturn;
- /* THIS FUNCTION MUST BE CALLED FROM A CRITICAL SECTION. It can also be
- * called from a critical section within an ISR. */
+ /* THIS FUNCTION MUST BE CALLED FROM A CRITICAL SECTION. It can also be
+ called from a critical section within an ISR. */
- /* The event list is sorted in priority order, so the first in the list can
- * be removed as it is known to be the highest priority. Remove the TCB from
- * the delayed list, and add it to the ready list.
- *
- * If an event is for a queue that is locked then this function will never
- * get called - the lock count on the queue will get modified instead. This
- * means exclusive access to the event list is guaranteed here.
- *
- * This function assumes that a check has already been made to ensure that
- * pxEventList is not empty. */
- pxUnblockedTCB = listGET_OWNER_OF_HEAD_ENTRY( pxEventList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- configASSERT( pxUnblockedTCB );
- listREMOVE_ITEM( &( pxUnblockedTCB->xEventListItem ) );
+ /* The event list is sorted in priority order, so the first in the list can
+ be removed as it is known to be the highest priority. Remove the TCB from
+ the delayed list, and add it to the ready list.
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- listREMOVE_ITEM( &( pxUnblockedTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxUnblockedTCB );
+ If an event is for a queue that is locked then this function will never
+ get called - the lock count on the queue will get modified instead. This
+ means exclusive access to the event list is guaranteed here.
- #if ( configUSE_TICKLESS_IDLE != 0 )
- {
- /* If a task is blocked on a kernel object then xNextTaskUnblockTime
- * might be set to the blocked task's time out time. If the task is
- * unblocked for a reason other than a timeout xNextTaskUnblockTime is
- * normally left unchanged, because it is automatically reset to a new
- * value when the tick count equals xNextTaskUnblockTime. However if
- * tickless idling is used it might be more important to enter sleep mode
- * at the earliest possible time - so reset xNextTaskUnblockTime here to
- * ensure it is updated at the earliest possible time. */
- prvResetNextTaskUnblockTime();
- }
- #endif
- }
- else
- {
- /* The delayed and ready lists cannot be accessed, so hold this task
- * pending until the scheduler is resumed. */
- listINSERT_END( &( xPendingReadyList ), &( pxUnblockedTCB->xEventListItem ) );
- }
+ This function assumes that a check has already been made to ensure that
+ pxEventList is not empty. */
+ pxUnblockedTCB = listGET_OWNER_OF_HEAD_ENTRY( pxEventList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ configASSERT( pxUnblockedTCB );
+ ( void ) uxListRemove( &( pxUnblockedTCB->xEventListItem ) );
- if( pxUnblockedTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- /* Return true if the task removed from the event list has a higher
- * priority than the calling task. This allows the calling task to know if
- * it should force a context switch now. */
- xReturn = pdTRUE;
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ ( void ) uxListRemove( &( pxUnblockedTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxUnblockedTCB );
- /* Mark that a yield is pending in case the user is not using the
- * "xHigherPriorityTaskWoken" parameter to an ISR safe FreeRTOS function. */
- xYieldPending = pdTRUE;
- }
- else
- {
- xReturn = pdFALSE;
- }
+ #if( configUSE_TICKLESS_IDLE != 0 )
+ {
+ /* If a task is blocked on a kernel object then xNextTaskUnblockTime
+ might be set to the blocked task's time out time. If the task is
+ unblocked for a reason other than a timeout xNextTaskUnblockTime is
+ normally left unchanged, because it is automatically reset to a new
+ value when the tick count equals xNextTaskUnblockTime. However if
+ tickless idling is used it might be more important to enter sleep mode
+ at the earliest possible time - so reset xNextTaskUnblockTime here to
+ ensure it is updated at the earliest possible time. */
+ prvResetNextTaskUnblockTime();
+ }
+ #endif
+ }
+ else
+ {
+ /* The delayed and ready lists cannot be accessed, so hold this task
+ pending until the scheduler is resumed. */
+ vListInsertEnd( &( xPendingReadyList ), &( pxUnblockedTCB->xEventListItem ) );
+ }
- return xReturn;
+ if( pxUnblockedTCB->uxPriority > pxCurrentTCB->uxPriority )
+ {
+ /* Return true if the task removed from the event list has a higher
+ priority than the calling task. This allows the calling task to know if
+ it should force a context switch now. */
+ xReturn = pdTRUE;
+
+ /* Mark that a yield is pending in case the user is not using the
+ "xHigherPriorityTaskWoken" parameter to an ISR safe FreeRTOS function. */
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ xReturn = pdFALSE;
+ }
+
+ return xReturn;
}
/*-----------------------------------------------------------*/
-void vTaskRemoveFromUnorderedEventList( ListItem_t * pxEventListItem,
- const TickType_t xItemValue )
+void vTaskRemoveFromUnorderedEventList( ListItem_t * pxEventListItem, const TickType_t xItemValue )
{
- TCB_t * pxUnblockedTCB;
+TCB_t *pxUnblockedTCB;
- /* THIS FUNCTION MUST BE CALLED WITH THE SCHEDULER SUSPENDED. It is used by
- * the event flags implementation. */
- configASSERT( uxSchedulerSuspended != pdFALSE );
+ /* THIS FUNCTION MUST BE CALLED WITH THE SCHEDULER SUSPENDED. It is used by
+ the event flags implementation. */
+ configASSERT( uxSchedulerSuspended != pdFALSE );
- /* Store the new item value in the event list. */
- listSET_LIST_ITEM_VALUE( pxEventListItem, xItemValue | taskEVENT_LIST_ITEM_VALUE_IN_USE );
+ /* Store the new item value in the event list. */
+ listSET_LIST_ITEM_VALUE( pxEventListItem, xItemValue | taskEVENT_LIST_ITEM_VALUE_IN_USE );
- /* Remove the event list form the event flag. Interrupts do not access
- * event flags. */
- pxUnblockedTCB = listGET_LIST_ITEM_OWNER( pxEventListItem ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- configASSERT( pxUnblockedTCB );
- listREMOVE_ITEM( pxEventListItem );
+ /* Remove the event list form the event flag. Interrupts do not access
+ event flags. */
+ pxUnblockedTCB = listGET_LIST_ITEM_OWNER( pxEventListItem ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ configASSERT( pxUnblockedTCB );
+ ( void ) uxListRemove( pxEventListItem );
- #if ( configUSE_TICKLESS_IDLE != 0 )
- {
- /* If a task is blocked on a kernel object then xNextTaskUnblockTime
- * might be set to the blocked task's time out time. If the task is
- * unblocked for a reason other than a timeout xNextTaskUnblockTime is
- * normally left unchanged, because it is automatically reset to a new
- * value when the tick count equals xNextTaskUnblockTime. However if
- * tickless idling is used it might be more important to enter sleep mode
- * at the earliest possible time - so reset xNextTaskUnblockTime here to
- * ensure it is updated at the earliest possible time. */
- prvResetNextTaskUnblockTime();
- }
- #endif
+ /* Remove the task from the delayed list and add it to the ready list. The
+ scheduler is suspended so interrupts will not be accessing the ready
+ lists. */
+ ( void ) uxListRemove( &( pxUnblockedTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxUnblockedTCB );
- /* Remove the task from the delayed list and add it to the ready list. The
- * scheduler is suspended so interrupts will not be accessing the ready
- * lists. */
- listREMOVE_ITEM( &( pxUnblockedTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxUnblockedTCB );
-
- if( pxUnblockedTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- /* The unblocked task has a priority above that of the calling task, so
- * a context switch is required. This function is called with the
- * scheduler suspended so xYieldPending is set so the context switch
- * occurs immediately that the scheduler is resumed (unsuspended). */
- xYieldPending = pdTRUE;
- }
+ if( pxUnblockedTCB->uxPriority > pxCurrentTCB->uxPriority )
+ {
+ /* The unblocked task has a priority above that of the calling task, so
+ a context switch is required. This function is called with the
+ scheduler suspended so xYieldPending is set so the context switch
+ occurs immediately that the scheduler is resumed (unsuspended). */
+ xYieldPending = pdTRUE;
+ }
}
/*-----------------------------------------------------------*/
void vTaskSetTimeOutState( TimeOut_t * const pxTimeOut )
{
- configASSERT( pxTimeOut );
- taskENTER_CRITICAL();
- {
- pxTimeOut->xOverflowCount = xNumOfOverflows;
- pxTimeOut->xTimeOnEntering = xTickCount;
- }
- taskEXIT_CRITICAL();
+ configASSERT( pxTimeOut );
+ taskENTER_CRITICAL();
+ {
+ pxTimeOut->xOverflowCount = xNumOfOverflows;
+ pxTimeOut->xTimeOnEntering = xTickCount;
+ }
+ taskEXIT_CRITICAL();
}
/*-----------------------------------------------------------*/
void vTaskInternalSetTimeOutState( TimeOut_t * const pxTimeOut )
{
- /* For internal use only as it does not use a critical section. */
- pxTimeOut->xOverflowCount = xNumOfOverflows;
- pxTimeOut->xTimeOnEntering = xTickCount;
+ /* For internal use only as it does not use a critical section. */
+ pxTimeOut->xOverflowCount = xNumOfOverflows;
+ pxTimeOut->xTimeOnEntering = xTickCount;
}
/*-----------------------------------------------------------*/
-BaseType_t xTaskCheckForTimeOut( TimeOut_t * const pxTimeOut,
- TickType_t * const pxTicksToWait )
+BaseType_t xTaskCheckForTimeOut( TimeOut_t * const pxTimeOut, TickType_t * const pxTicksToWait )
{
- BaseType_t xReturn;
+BaseType_t xReturn;
- configASSERT( pxTimeOut );
- configASSERT( pxTicksToWait );
+ configASSERT( pxTimeOut );
+ configASSERT( pxTicksToWait );
- taskENTER_CRITICAL();
- {
- /* Minor optimisation. The tick count cannot change in this block. */
- const TickType_t xConstTickCount = xTickCount;
- const TickType_t xElapsedTime = xConstTickCount - pxTimeOut->xTimeOnEntering;
+ taskENTER_CRITICAL();
+ {
+ /* Minor optimisation. The tick count cannot change in this block. */
+ const TickType_t xConstTickCount = xTickCount;
+ const TickType_t xElapsedTime = xConstTickCount - pxTimeOut->xTimeOnEntering;
- #if ( INCLUDE_xTaskAbortDelay == 1 )
- if( pxCurrentTCB->ucDelayAborted != ( uint8_t ) pdFALSE )
- {
- /* The delay was aborted, which is not the same as a time out,
- * but has the same result. */
- pxCurrentTCB->ucDelayAborted = pdFALSE;
- xReturn = pdTRUE;
- }
- else
- #endif
+ #if( INCLUDE_xTaskAbortDelay == 1 )
+ if( pxCurrentTCB->ucDelayAborted != ( uint8_t ) pdFALSE )
+ {
+ /* The delay was aborted, which is not the same as a time out,
+ but has the same result. */
+ pxCurrentTCB->ucDelayAborted = pdFALSE;
+ xReturn = pdTRUE;
+ }
+ else
+ #endif
- #if ( INCLUDE_vTaskSuspend == 1 )
- if( *pxTicksToWait == portMAX_DELAY )
- {
- /* If INCLUDE_vTaskSuspend is set to 1 and the block time
- * specified is the maximum block time then the task should block
- * indefinitely, and therefore never time out. */
- xReturn = pdFALSE;
- }
- else
- #endif
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ if( *pxTicksToWait == portMAX_DELAY )
+ {
+ /* If INCLUDE_vTaskSuspend is set to 1 and the block time
+ specified is the maximum block time then the task should block
+ indefinitely, and therefore never time out. */
+ xReturn = pdFALSE;
+ }
+ else
+ #endif
- if( ( xNumOfOverflows != pxTimeOut->xOverflowCount ) && ( xConstTickCount >= pxTimeOut->xTimeOnEntering ) ) /*lint !e525 Indentation preferred as is to make code within pre-processor directives clearer. */
- {
- /* The tick count is greater than the time at which
- * vTaskSetTimeout() was called, but has also overflowed since
- * vTaskSetTimeOut() was called. It must have wrapped all the way
- * around and gone past again. This passed since vTaskSetTimeout()
- * was called. */
- xReturn = pdTRUE;
- *pxTicksToWait = ( TickType_t ) 0;
- }
- else if( xElapsedTime < *pxTicksToWait ) /*lint !e961 Explicit casting is only redundant with some compilers, whereas others require it to prevent integer conversion errors. */
- {
- /* Not a genuine timeout. Adjust parameters for time remaining. */
- *pxTicksToWait -= xElapsedTime;
- vTaskInternalSetTimeOutState( pxTimeOut );
- xReturn = pdFALSE;
- }
- else
- {
- *pxTicksToWait = ( TickType_t ) 0;
- xReturn = pdTRUE;
- }
- }
- taskEXIT_CRITICAL();
+ if( ( xNumOfOverflows != pxTimeOut->xOverflowCount ) && ( xConstTickCount >= pxTimeOut->xTimeOnEntering ) ) /*lint !e525 Indentation preferred as is to make code within pre-processor directives clearer. */
+ {
+ /* The tick count is greater than the time at which
+ vTaskSetTimeout() was called, but has also overflowed since
+ vTaskSetTimeOut() was called. It must have wrapped all the way
+ around and gone past again. This passed since vTaskSetTimeout()
+ was called. */
+ xReturn = pdTRUE;
+ }
+ else if( xElapsedTime < *pxTicksToWait ) /*lint !e961 Explicit casting is only redundant with some compilers, whereas others require it to prevent integer conversion errors. */
+ {
+ /* Not a genuine timeout. Adjust parameters for time remaining. */
+ *pxTicksToWait -= xElapsedTime;
+ vTaskInternalSetTimeOutState( pxTimeOut );
+ xReturn = pdFALSE;
+ }
+ else
+ {
+ *pxTicksToWait = 0;
+ xReturn = pdTRUE;
+ }
+ }
+ taskEXIT_CRITICAL();
- return xReturn;
+ return xReturn;
}
/*-----------------------------------------------------------*/
void vTaskMissedYield( void )
{
- xYieldPending = pdTRUE;
+ xYieldPending = pdTRUE;
}
/*-----------------------------------------------------------*/
#if ( configUSE_TRACE_FACILITY == 1 )
- UBaseType_t uxTaskGetTaskNumber( TaskHandle_t xTask )
- {
- UBaseType_t uxReturn;
- TCB_t const * pxTCB;
+ UBaseType_t uxTaskGetTaskNumber( TaskHandle_t xTask )
+ {
+ UBaseType_t uxReturn;
+ TCB_t const *pxTCB;
- if( xTask != NULL )
- {
- pxTCB = xTask;
- uxReturn = pxTCB->uxTaskNumber;
- }
- else
- {
- uxReturn = 0U;
- }
+ if( xTask != NULL )
+ {
+ pxTCB = xTask;
+ uxReturn = pxTCB->uxTCBNumber;
+ }
+ else
+ {
+ uxReturn = 0U;
+ }
- return uxReturn;
- }
+ return uxReturn;
+ }
#endif /* configUSE_TRACE_FACILITY */
/*-----------------------------------------------------------*/
#if ( configUSE_TRACE_FACILITY == 1 )
- void vTaskSetTaskNumber( TaskHandle_t xTask,
- const UBaseType_t uxHandle )
- {
- TCB_t * pxTCB;
+ void vTaskSetTaskNumber( TaskHandle_t xTask, const UBaseType_t uxHandle )
+ {
+ TCB_t * pxTCB;
- if( xTask != NULL )
- {
- pxTCB = xTask;
- pxTCB->uxTaskNumber = uxHandle;
- }
- }
+ if( xTask != NULL )
+ {
+ pxTCB = xTask;
+ pxTCB->uxTaskNumber = uxHandle;
+ }
+ }
#endif /* configUSE_TRACE_FACILITY */
@@ -3435,2007 +3378,1917 @@
*/
static portTASK_FUNCTION( prvIdleTask, pvParameters )
{
- /* Stop warnings. */
- ( void ) pvParameters;
+ /* Stop warnings. */
+ ( void ) pvParameters;
- /** THIS IS THE RTOS IDLE TASK - WHICH IS CREATED AUTOMATICALLY WHEN THE
- * SCHEDULER IS STARTED. **/
+ /** THIS IS THE RTOS IDLE TASK - WHICH IS CREATED AUTOMATICALLY WHEN THE
+ SCHEDULER IS STARTED. **/
- /* In case a task that has a secure context deletes itself, in which case
- * the idle task is responsible for deleting the task's secure context, if
- * any. */
- portALLOCATE_SECURE_CONTEXT( configMINIMAL_SECURE_STACK_SIZE );
+ /* In case a task that has a secure context deletes itself, in which case
+ the idle task is responsible for deleting the task's secure context, if
+ any. */
+ portALLOCATE_SECURE_CONTEXT( configMINIMAL_SECURE_STACK_SIZE );
- for( ; ; )
- {
- /* See if any tasks have deleted themselves - if so then the idle task
- * is responsible for freeing the deleted task's TCB and stack. */
- prvCheckTasksWaitingTermination();
+ for( ;; )
+ {
+ /* See if any tasks have deleted themselves - if so then the idle task
+ is responsible for freeing the deleted task's TCB and stack. */
+ prvCheckTasksWaitingTermination();
- #if ( configUSE_PREEMPTION == 0 )
- {
- /* If we are not using preemption we keep forcing a task switch to
- * see if any other task has become available. If we are using
- * preemption we don't need to do this as any task becoming available
- * will automatically get the processor anyway. */
- taskYIELD();
- }
- #endif /* configUSE_PREEMPTION */
+ #if ( configUSE_PREEMPTION == 0 )
+ {
+ /* If we are not using preemption we keep forcing a task switch to
+ see if any other task has become available. If we are using
+ preemption we don't need to do this as any task becoming available
+ will automatically get the processor anyway. */
+ taskYIELD();
+ }
+ #endif /* configUSE_PREEMPTION */
- #if ( ( configUSE_PREEMPTION == 1 ) && ( configIDLE_SHOULD_YIELD == 1 ) )
- {
- /* When using preemption tasks of equal priority will be
- * timesliced. If a task that is sharing the idle priority is ready
- * to run then the idle task should yield before the end of the
- * timeslice.
- *
- * A critical region is not required here as we are just reading from
- * the list, and an occasional incorrect value will not matter. If
- * the ready list at the idle priority contains more than one task
- * then a task other than the idle task is ready to execute. */
- if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ tskIDLE_PRIORITY ] ) ) > ( UBaseType_t ) 1 )
- {
- taskYIELD();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* ( ( configUSE_PREEMPTION == 1 ) && ( configIDLE_SHOULD_YIELD == 1 ) ) */
+ #if ( ( configUSE_PREEMPTION == 1 ) && ( configIDLE_SHOULD_YIELD == 1 ) )
+ {
+ /* When using preemption tasks of equal priority will be
+ timesliced. If a task that is sharing the idle priority is ready
+ to run then the idle task should yield before the end of the
+ timeslice.
- #if ( configUSE_IDLE_HOOK == 1 )
- {
- extern void vApplicationIdleHook( void );
+ A critical region is not required here as we are just reading from
+ the list, and an occasional incorrect value will not matter. If
+ the ready list at the idle priority contains more than one task
+ then a task other than the idle task is ready to execute. */
+ if( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ tskIDLE_PRIORITY ] ) ) > ( UBaseType_t ) 1 )
+ {
+ taskYIELD();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* ( ( configUSE_PREEMPTION == 1 ) && ( configIDLE_SHOULD_YIELD == 1 ) ) */
- /* Call the user defined function from within the idle task. This
- * allows the application designer to add background functionality
- * without the overhead of a separate task.
- * NOTE: vApplicationIdleHook() MUST NOT, UNDER ANY CIRCUMSTANCES,
- * CALL A FUNCTION THAT MIGHT BLOCK. */
- vApplicationIdleHook();
- }
- #endif /* configUSE_IDLE_HOOK */
+ #if ( configUSE_IDLE_HOOK == 1 )
+ {
+ extern void vApplicationIdleHook( void );
- /* This conditional compilation should use inequality to 0, not equality
- * to 1. This is to ensure portSUPPRESS_TICKS_AND_SLEEP() is called when
- * user defined low power mode implementations require
- * configUSE_TICKLESS_IDLE to be set to a value other than 1. */
- #if ( configUSE_TICKLESS_IDLE != 0 )
- {
- TickType_t xExpectedIdleTime;
+ /* Call the user defined function from within the idle task. This
+ allows the application designer to add background functionality
+ without the overhead of a separate task.
+ NOTE: vApplicationIdleHook() MUST NOT, UNDER ANY CIRCUMSTANCES,
+ CALL A FUNCTION THAT MIGHT BLOCK. */
+ vApplicationIdleHook();
+ }
+ #endif /* configUSE_IDLE_HOOK */
- /* It is not desirable to suspend then resume the scheduler on
- * each iteration of the idle task. Therefore, a preliminary
- * test of the expected idle time is performed without the
- * scheduler suspended. The result here is not necessarily
- * valid. */
- xExpectedIdleTime = prvGetExpectedIdleTime();
+ /* This conditional compilation should use inequality to 0, not equality
+ to 1. This is to ensure portSUPPRESS_TICKS_AND_SLEEP() is called when
+ user defined low power mode implementations require
+ configUSE_TICKLESS_IDLE to be set to a value other than 1. */
+ #if ( configUSE_TICKLESS_IDLE != 0 )
+ {
+ TickType_t xExpectedIdleTime;
- if( xExpectedIdleTime >= configEXPECTED_IDLE_TIME_BEFORE_SLEEP )
- {
- vTaskSuspendAll();
- {
- /* Now the scheduler is suspended, the expected idle
- * time can be sampled again, and this time its value can
- * be used. */
- configASSERT( xNextTaskUnblockTime >= xTickCount );
- xExpectedIdleTime = prvGetExpectedIdleTime();
+ /* It is not desirable to suspend then resume the scheduler on
+ each iteration of the idle task. Therefore, a preliminary
+ test of the expected idle time is performed without the
+ scheduler suspended. The result here is not necessarily
+ valid. */
+ xExpectedIdleTime = prvGetExpectedIdleTime();
- /* Define the following macro to set xExpectedIdleTime to 0
- * if the application does not want
- * portSUPPRESS_TICKS_AND_SLEEP() to be called. */
- configPRE_SUPPRESS_TICKS_AND_SLEEP_PROCESSING( xExpectedIdleTime );
+ if( xExpectedIdleTime >= configEXPECTED_IDLE_TIME_BEFORE_SLEEP )
+ {
+ vTaskSuspendAll();
+ {
+ /* Now the scheduler is suspended, the expected idle
+ time can be sampled again, and this time its value can
+ be used. */
+ configASSERT( xNextTaskUnblockTime >= xTickCount );
+ xExpectedIdleTime = prvGetExpectedIdleTime();
- if( xExpectedIdleTime >= configEXPECTED_IDLE_TIME_BEFORE_SLEEP )
- {
- traceLOW_POWER_IDLE_BEGIN();
- portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime );
- traceLOW_POWER_IDLE_END();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- ( void ) xTaskResumeAll();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configUSE_TICKLESS_IDLE */
- }
+ /* Define the following macro to set xExpectedIdleTime to 0
+ if the application does not want
+ portSUPPRESS_TICKS_AND_SLEEP() to be called. */
+ configPRE_SUPPRESS_TICKS_AND_SLEEP_PROCESSING( xExpectedIdleTime );
+
+ if( xExpectedIdleTime >= configEXPECTED_IDLE_TIME_BEFORE_SLEEP )
+ {
+ traceLOW_POWER_IDLE_BEGIN();
+ portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime );
+ traceLOW_POWER_IDLE_END();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ ( void ) xTaskResumeAll();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configUSE_TICKLESS_IDLE */
+ }
}
/*-----------------------------------------------------------*/
-#if ( configUSE_TICKLESS_IDLE != 0 )
+#if( configUSE_TICKLESS_IDLE != 0 )
- eSleepModeStatus eTaskConfirmSleepModeStatus( void )
- {
- #if ( INCLUDE_vTaskSuspend == 1 )
- /* The idle task exists in addition to the application tasks. */
- const UBaseType_t uxNonApplicationTasks = 1;
- #endif /* INCLUDE_vTaskSuspend */
+ eSleepModeStatus eTaskConfirmSleepModeStatus( void )
+ {
+ /* The idle task exists in addition to the application tasks. */
+ const UBaseType_t uxNonApplicationTasks = 1;
+ eSleepModeStatus eReturn = eStandardSleep;
- eSleepModeStatus eReturn = eStandardSleep;
+ if( listCURRENT_LIST_LENGTH( &xPendingReadyList ) != 0 )
+ {
+ /* A task was made ready while the scheduler was suspended. */
+ eReturn = eAbortSleep;
+ }
+ else if( xYieldPending != pdFALSE )
+ {
+ /* A yield was pended while the scheduler was suspended. */
+ eReturn = eAbortSleep;
+ }
+ else
+ {
+ /* If all the tasks are in the suspended list (which might mean they
+ have an infinite block time rather than actually being suspended)
+ then it is safe to turn all clocks off and just wait for external
+ interrupts. */
+ if( listCURRENT_LIST_LENGTH( &xSuspendedTaskList ) == ( uxCurrentNumberOfTasks - uxNonApplicationTasks ) )
+ {
+ eReturn = eNoTasksWaitingTimeout;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- /* This function must be called from a critical section. */
-
- if( listCURRENT_LIST_LENGTH( &xPendingReadyList ) != 0 )
- {
- /* A task was made ready while the scheduler was suspended. */
- eReturn = eAbortSleep;
- }
- else if( xYieldPending != pdFALSE )
- {
- /* A yield was pended while the scheduler was suspended. */
- eReturn = eAbortSleep;
- }
- else if( xPendedTicks != 0 )
- {
- /* A tick interrupt has already occurred but was held pending
- * because the scheduler is suspended. */
- eReturn = eAbortSleep;
- }
-
- #if ( INCLUDE_vTaskSuspend == 1 )
- else if( listCURRENT_LIST_LENGTH( &xSuspendedTaskList ) == ( uxCurrentNumberOfTasks - uxNonApplicationTasks ) )
- {
- /* If all the tasks are in the suspended list (which might mean they
- * have an infinite block time rather than actually being suspended)
- * then it is safe to turn all clocks off and just wait for external
- * interrupts. */
- eReturn = eNoTasksWaitingTimeout;
- }
- #endif /* INCLUDE_vTaskSuspend */
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
-
- return eReturn;
- }
+ return eReturn;
+ }
#endif /* configUSE_TICKLESS_IDLE */
/*-----------------------------------------------------------*/
#if ( configNUM_THREAD_LOCAL_STORAGE_POINTERS != 0 )
- void vTaskSetThreadLocalStoragePointer( TaskHandle_t xTaskToSet,
- BaseType_t xIndex,
- void * pvValue )
- {
- TCB_t * pxTCB;
+ void vTaskSetThreadLocalStoragePointer( TaskHandle_t xTaskToSet, BaseType_t xIndex, void *pvValue )
+ {
+ TCB_t *pxTCB;
- if( ( xIndex >= 0 ) &&
- ( xIndex < configNUM_THREAD_LOCAL_STORAGE_POINTERS ) )
- {
- pxTCB = prvGetTCBFromHandle( xTaskToSet );
- configASSERT( pxTCB != NULL );
- pxTCB->pvThreadLocalStoragePointers[ xIndex ] = pvValue;
- }
- }
+ if( xIndex < configNUM_THREAD_LOCAL_STORAGE_POINTERS )
+ {
+ pxTCB = prvGetTCBFromHandle( xTaskToSet );
+ pxTCB->pvThreadLocalStoragePointers[ xIndex ] = pvValue;
+ }
+ }
#endif /* configNUM_THREAD_LOCAL_STORAGE_POINTERS */
/*-----------------------------------------------------------*/
#if ( configNUM_THREAD_LOCAL_STORAGE_POINTERS != 0 )
- void * pvTaskGetThreadLocalStoragePointer( TaskHandle_t xTaskToQuery,
- BaseType_t xIndex )
- {
- void * pvReturn = NULL;
- TCB_t * pxTCB;
+ void *pvTaskGetThreadLocalStoragePointer( TaskHandle_t xTaskToQuery, BaseType_t xIndex )
+ {
+ void *pvReturn = NULL;
+ TCB_t *pxTCB;
- if( ( xIndex >= 0 ) &&
- ( xIndex < configNUM_THREAD_LOCAL_STORAGE_POINTERS ) )
- {
- pxTCB = prvGetTCBFromHandle( xTaskToQuery );
- pvReturn = pxTCB->pvThreadLocalStoragePointers[ xIndex ];
- }
- else
- {
- pvReturn = NULL;
- }
+ if( xIndex < configNUM_THREAD_LOCAL_STORAGE_POINTERS )
+ {
+ pxTCB = prvGetTCBFromHandle( xTaskToQuery );
+ pvReturn = pxTCB->pvThreadLocalStoragePointers[ xIndex ];
+ }
+ else
+ {
+ pvReturn = NULL;
+ }
- return pvReturn;
- }
+ return pvReturn;
+ }
#endif /* configNUM_THREAD_LOCAL_STORAGE_POINTERS */
/*-----------------------------------------------------------*/
#if ( portUSING_MPU_WRAPPERS == 1 )
- void vTaskAllocateMPURegions( TaskHandle_t xTaskToModify,
- const MemoryRegion_t * const xRegions )
- {
- TCB_t * pxTCB;
+ void vTaskAllocateMPURegions( TaskHandle_t xTaskToModify, const MemoryRegion_t * const xRegions )
+ {
+ TCB_t *pxTCB;
- /* If null is passed in here then we are modifying the MPU settings of
- * the calling task. */
- pxTCB = prvGetTCBFromHandle( xTaskToModify );
+ /* If null is passed in here then we are modifying the MPU settings of
+ the calling task. */
+ pxTCB = prvGetTCBFromHandle( xTaskToModify );
- vPortStoreTaskMPUSettings( &( pxTCB->xMPUSettings ), xRegions, NULL, 0 );
- }
+ vPortStoreTaskMPUSettings( &( pxTCB->xMPUSettings ), xRegions, NULL, 0 );
+ }
#endif /* portUSING_MPU_WRAPPERS */
/*-----------------------------------------------------------*/
static void prvInitialiseTaskLists( void )
{
- UBaseType_t uxPriority;
+UBaseType_t uxPriority;
- for( uxPriority = ( UBaseType_t ) 0U; uxPriority < ( UBaseType_t ) configMAX_PRIORITIES; uxPriority++ )
- {
- vListInitialise( &( pxReadyTasksLists[ uxPriority ] ) );
- }
+ for( uxPriority = ( UBaseType_t ) 0U; uxPriority < ( UBaseType_t ) configMAX_PRIORITIES; uxPriority++ )
+ {
+ vListInitialise( &( pxReadyTasksLists[ uxPriority ] ) );
+ }
- vListInitialise( &xDelayedTaskList1 );
- vListInitialise( &xDelayedTaskList2 );
- vListInitialise( &xPendingReadyList );
+ vListInitialise( &xDelayedTaskList1 );
+ vListInitialise( &xDelayedTaskList2 );
+ vListInitialise( &xPendingReadyList );
- #if ( INCLUDE_vTaskDelete == 1 )
- {
- vListInitialise( &xTasksWaitingTermination );
- }
- #endif /* INCLUDE_vTaskDelete */
+ #if ( INCLUDE_vTaskDelete == 1 )
+ {
+ vListInitialise( &xTasksWaitingTermination );
+ }
+ #endif /* INCLUDE_vTaskDelete */
- #if ( INCLUDE_vTaskSuspend == 1 )
- {
- vListInitialise( &xSuspendedTaskList );
- }
- #endif /* INCLUDE_vTaskSuspend */
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ {
+ vListInitialise( &xSuspendedTaskList );
+ }
+ #endif /* INCLUDE_vTaskSuspend */
- /* Start with pxDelayedTaskList using list1 and the pxOverflowDelayedTaskList
- * using list2. */
- pxDelayedTaskList = &xDelayedTaskList1;
- pxOverflowDelayedTaskList = &xDelayedTaskList2;
+ /* Start with pxDelayedTaskList using list1 and the pxOverflowDelayedTaskList
+ using list2. */
+ pxDelayedTaskList = &xDelayedTaskList1;
+ pxOverflowDelayedTaskList = &xDelayedTaskList2;
}
/*-----------------------------------------------------------*/
static void prvCheckTasksWaitingTermination( void )
{
- /** THIS FUNCTION IS CALLED FROM THE RTOS IDLE TASK **/
- #if ( INCLUDE_vTaskDelete == 1 )
- {
- TCB_t * pxTCB;
+ /** THIS FUNCTION IS CALLED FROM THE RTOS IDLE TASK **/
- /* uxDeletedTasksWaitingCleanUp is used to prevent taskENTER_CRITICAL()
- * being called too often in the idle task. */
- while( uxDeletedTasksWaitingCleanUp > ( UBaseType_t ) 0U )
- {
- taskENTER_CRITICAL();
- {
- pxTCB = listGET_OWNER_OF_HEAD_ENTRY( ( &xTasksWaitingTermination ) ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
- --uxCurrentNumberOfTasks;
- --uxDeletedTasksWaitingCleanUp;
- }
- taskEXIT_CRITICAL();
+ #if ( INCLUDE_vTaskDelete == 1 )
+ {
+ TCB_t *pxTCB;
- prvDeleteTCB( pxTCB );
- }
- }
- #endif /* INCLUDE_vTaskDelete */
+ /* uxDeletedTasksWaitingCleanUp is used to prevent taskENTER_CRITICAL()
+ being called too often in the idle task. */
+ while( uxDeletedTasksWaitingCleanUp > ( UBaseType_t ) 0U )
+ {
+ taskENTER_CRITICAL();
+ {
+ pxTCB = listGET_OWNER_OF_HEAD_ENTRY( ( &xTasksWaitingTermination ) ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ --uxCurrentNumberOfTasks;
+ --uxDeletedTasksWaitingCleanUp;
+ }
+ taskEXIT_CRITICAL();
+
+ prvDeleteTCB( pxTCB );
+ }
+ }
+ #endif /* INCLUDE_vTaskDelete */
}
/*-----------------------------------------------------------*/
-#if ( configUSE_TRACE_FACILITY == 1 )
+#if( configUSE_TRACE_FACILITY == 1 )
- void vTaskGetInfo( TaskHandle_t xTask,
- TaskStatus_t * pxTaskStatus,
- BaseType_t xGetFreeStackSpace,
- eTaskState eState )
- {
- TCB_t * pxTCB;
+ void vTaskGetInfo( TaskHandle_t xTask, TaskStatus_t *pxTaskStatus, BaseType_t xGetFreeStackSpace, eTaskState eState )
+ {
+ TCB_t *pxTCB;
- /* xTask is NULL then get the state of the calling task. */
- pxTCB = prvGetTCBFromHandle( xTask );
+ /* xTask is NULL then get the state of the calling task. */
+ pxTCB = prvGetTCBFromHandle( xTask );
- pxTaskStatus->xHandle = ( TaskHandle_t ) pxTCB;
- pxTaskStatus->pcTaskName = ( const char * ) &( pxTCB->pcTaskName[ 0 ] );
- pxTaskStatus->uxCurrentPriority = pxTCB->uxPriority;
- pxTaskStatus->pxStackBase = pxTCB->pxStack;
- #if ( ( portSTACK_GROWTH > 0 ) && ( configRECORD_STACK_HIGH_ADDRESS == 1 ) )
- pxTaskStatus->pxTopOfStack = pxTCB->pxTopOfStack;
- pxTaskStatus->pxEndOfStack = pxTCB->pxEndOfStack;
- #endif
- pxTaskStatus->xTaskNumber = pxTCB->uxTCBNumber;
+ pxTaskStatus->xHandle = ( TaskHandle_t ) pxTCB;
+ pxTaskStatus->pcTaskName = ( const char * ) &( pxTCB->pcTaskName [ 0 ] );
+ pxTaskStatus->uxCurrentPriority = pxTCB->uxPriority;
+ pxTaskStatus->pxStackBase = pxTCB->pxStack;
+ pxTaskStatus->xTaskNumber = pxTCB->uxTCBNumber;
+ pxTaskStatus->uStackTotal = pxTCB->uStackDepth;
- #if ( configUSE_MUTEXES == 1 )
- {
- pxTaskStatus->uxBasePriority = pxTCB->uxBasePriority;
- }
- #else
- {
- pxTaskStatus->uxBasePriority = 0;
- }
- #endif
+ #if ( configUSE_MUTEXES == 1 )
+ {
+ pxTaskStatus->uxBasePriority = pxTCB->uxBasePriority;
+ }
+ #else
+ {
+ pxTaskStatus->uxBasePriority = 0;
+ }
+ #endif
- #if ( configGENERATE_RUN_TIME_STATS == 1 )
- {
- pxTaskStatus->ulRunTimeCounter = pxTCB->ulRunTimeCounter;
- }
- #else
- {
- pxTaskStatus->ulRunTimeCounter = ( configRUN_TIME_COUNTER_TYPE ) 0;
- }
- #endif
+ #if ( configGENERATE_RUN_TIME_STATS == 1 )
+ {
+ pxTaskStatus->ulRunTimeCounter = pxTCB->ulRunTimeCounter;
+ }
+ #else
+ {
+ pxTaskStatus->ulRunTimeCounter = 0;
+ }
+ #endif
- /* Obtaining the task state is a little fiddly, so is only done if the
- * value of eState passed into this function is eInvalid - otherwise the
- * state is just set to whatever is passed in. */
- if( eState != eInvalid )
- {
- if( pxTCB == pxCurrentTCB )
- {
- pxTaskStatus->eCurrentState = eRunning;
- }
- else
- {
- pxTaskStatus->eCurrentState = eState;
+ /* Obtaining the task state is a little fiddly, so is only done if the
+ value of eState passed into this function is eInvalid - otherwise the
+ state is just set to whatever is passed in. */
+ if( eState != eInvalid )
+ {
+ if( pxTCB == pxCurrentTCB )
+ {
+ pxTaskStatus->eCurrentState = eRunning;
+ }
+ else
+ {
+ pxTaskStatus->eCurrentState = eState;
- #if ( INCLUDE_vTaskSuspend == 1 )
- {
- /* If the task is in the suspended list then there is a
- * chance it is actually just blocked indefinitely - so really
- * it should be reported as being in the Blocked state. */
- if( eState == eSuspended )
- {
- vTaskSuspendAll();
- {
- if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
- {
- pxTaskStatus->eCurrentState = eBlocked;
- }
- }
- ( void ) xTaskResumeAll();
- }
- }
- #endif /* INCLUDE_vTaskSuspend */
- }
- }
- else
- {
- pxTaskStatus->eCurrentState = eTaskGetState( pxTCB );
- }
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ {
+ /* If the task is in the suspended list then there is a
+ chance it is actually just blocked indefinitely - so really
+ it should be reported as being in the Blocked state. */
+ if( eState == eSuspended )
+ {
+ vTaskSuspendAll();
+ {
+ if( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) != NULL )
+ {
+ pxTaskStatus->eCurrentState = eBlocked;
+ }
+ }
+ ( void ) xTaskResumeAll();
+ }
+ }
+ #endif /* INCLUDE_vTaskSuspend */
+ }
+ }
+ else
+ {
+ pxTaskStatus->eCurrentState = eTaskGetState( pxTCB );
+ }
- /* Obtaining the stack space takes some time, so the xGetFreeStackSpace
- * parameter is provided to allow it to be skipped. */
- if( xGetFreeStackSpace != pdFALSE )
- {
- #if ( portSTACK_GROWTH > 0 )
- {
- pxTaskStatus->usStackHighWaterMark = prvTaskCheckFreeStackSpace( ( uint8_t * ) pxTCB->pxEndOfStack );
- }
- #else
- {
- pxTaskStatus->usStackHighWaterMark = prvTaskCheckFreeStackSpace( ( uint8_t * ) pxTCB->pxStack );
- }
- #endif
- }
- else
- {
- pxTaskStatus->usStackHighWaterMark = 0;
- }
- }
+ /* Obtaining the stack space takes some time, so the xGetFreeStackSpace
+ parameter is provided to allow it to be skipped. */
+ if( xGetFreeStackSpace != pdFALSE )
+ {
+ #if ( portSTACK_GROWTH > 0 )
+ {
+ pxTaskStatus->usStackHighWaterMark = prvTaskCheckFreeStackSpace( ( uint8_t * ) pxTCB->pxEndOfStack );
+ }
+ #else
+ {
+ pxTaskStatus->usStackHighWaterMark = prvTaskCheckFreeStackSpace( ( uint8_t * ) pxTCB->pxStack );
+ }
+ #endif
+ }
+ else
+ {
+ pxTaskStatus->usStackHighWaterMark = 0;
+ }
+ }
#endif /* configUSE_TRACE_FACILITY */
/*-----------------------------------------------------------*/
#if ( configUSE_TRACE_FACILITY == 1 )
- static UBaseType_t prvListTasksWithinSingleList( TaskStatus_t * pxTaskStatusArray,
- List_t * pxList,
- eTaskState eState )
- {
- configLIST_VOLATILE TCB_t * pxNextTCB;
- configLIST_VOLATILE TCB_t * pxFirstTCB;
- UBaseType_t uxTask = 0;
+ static UBaseType_t prvListTasksWithinSingleList( TaskStatus_t *pxTaskStatusArray, List_t *pxList, eTaskState eState )
+ {
+ configLIST_VOLATILE TCB_t *pxNextTCB, *pxFirstTCB;
+ UBaseType_t uxTask = 0;
- if( listCURRENT_LIST_LENGTH( pxList ) > ( UBaseType_t ) 0 )
- {
- listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ if( listCURRENT_LIST_LENGTH( pxList ) > ( UBaseType_t ) 0 )
+ {
+ listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- /* Populate an TaskStatus_t structure within the
- * pxTaskStatusArray array for each task that is referenced from
- * pxList. See the definition of TaskStatus_t in task.h for the
- * meaning of each TaskStatus_t structure member. */
- do
- {
- listGET_OWNER_OF_NEXT_ENTRY( pxNextTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
- vTaskGetInfo( ( TaskHandle_t ) pxNextTCB, &( pxTaskStatusArray[ uxTask ] ), pdTRUE, eState );
- uxTask++;
- } while( pxNextTCB != pxFirstTCB );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Populate an TaskStatus_t structure within the
+ pxTaskStatusArray array for each task that is referenced from
+ pxList. See the definition of TaskStatus_t in task.h for the
+ meaning of each TaskStatus_t structure member. */
+ do
+ {
+ listGET_OWNER_OF_NEXT_ENTRY( pxNextTCB, pxList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ vTaskGetInfo( ( TaskHandle_t ) pxNextTCB, &( pxTaskStatusArray[ uxTask ] ), pdTRUE, eState );
+ uxTask++;
+ } while( pxNextTCB != pxFirstTCB );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- return uxTask;
- }
+ return uxTask;
+ }
#endif /* configUSE_TRACE_FACILITY */
/*-----------------------------------------------------------*/
#if ( ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark2 == 1 ) )
- static configSTACK_DEPTH_TYPE prvTaskCheckFreeStackSpace( const uint8_t * pucStackByte )
- {
- uint32_t ulCount = 0U;
+ static configSTACK_DEPTH_TYPE prvTaskCheckFreeStackSpace( const uint8_t * pucStackByte )
+ {
+ uint32_t ulCount = 0U;
- while( *pucStackByte == ( uint8_t ) tskSTACK_FILL_BYTE )
- {
- pucStackByte -= portSTACK_GROWTH;
- ulCount++;
- }
+ while( *pucStackByte == ( uint8_t ) tskSTACK_FILL_BYTE )
+ {
+ pucStackByte -= portSTACK_GROWTH;
+ ulCount++;
+ }
- ulCount /= ( uint32_t ) sizeof( StackType_t ); /*lint !e961 Casting is not redundant on smaller architectures. */
+ ulCount /= ( uint32_t ) sizeof( StackType_t ); /*lint !e961 Casting is not redundant on smaller architectures. */
- return ( configSTACK_DEPTH_TYPE ) ulCount;
- }
+ return ( configSTACK_DEPTH_TYPE ) ulCount;
+ }
#endif /* ( ( configUSE_TRACE_FACILITY == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark == 1 ) || ( INCLUDE_uxTaskGetStackHighWaterMark2 == 1 ) ) */
/*-----------------------------------------------------------*/
#if ( INCLUDE_uxTaskGetStackHighWaterMark2 == 1 )
-/* uxTaskGetStackHighWaterMark() and uxTaskGetStackHighWaterMark2() are the
- * same except for their return type. Using configSTACK_DEPTH_TYPE allows the
- * user to determine the return type. It gets around the problem of the value
- * overflowing on 8-bit types without breaking backward compatibility for
- * applications that expect an 8-bit return type. */
- configSTACK_DEPTH_TYPE uxTaskGetStackHighWaterMark2( TaskHandle_t xTask )
- {
- TCB_t * pxTCB;
- uint8_t * pucEndOfStack;
- configSTACK_DEPTH_TYPE uxReturn;
+ /* uxTaskGetStackHighWaterMark() and uxTaskGetStackHighWaterMark2() are the
+ same except for their return type. Using configSTACK_DEPTH_TYPE allows the
+ user to determine the return type. It gets around the problem of the value
+ overflowing on 8-bit types without breaking backward compatibility for
+ applications that expect an 8-bit return type. */
+ configSTACK_DEPTH_TYPE uxTaskGetStackHighWaterMark2( TaskHandle_t xTask )
+ {
+ TCB_t *pxTCB;
+ uint8_t *pucEndOfStack;
+ configSTACK_DEPTH_TYPE uxReturn;
- /* uxTaskGetStackHighWaterMark() and uxTaskGetStackHighWaterMark2() are
- * the same except for their return type. Using configSTACK_DEPTH_TYPE
- * allows the user to determine the return type. It gets around the
- * problem of the value overflowing on 8-bit types without breaking
- * backward compatibility for applications that expect an 8-bit return
- * type. */
+ /* uxTaskGetStackHighWaterMark() and uxTaskGetStackHighWaterMark2() are
+ the same except for their return type. Using configSTACK_DEPTH_TYPE
+ allows the user to determine the return type. It gets around the
+ problem of the value overflowing on 8-bit types without breaking
+ backward compatibility for applications that expect an 8-bit return
+ type. */
- pxTCB = prvGetTCBFromHandle( xTask );
+ pxTCB = prvGetTCBFromHandle( xTask );
- #if portSTACK_GROWTH < 0
- {
- pucEndOfStack = ( uint8_t * ) pxTCB->pxStack;
- }
- #else
- {
- pucEndOfStack = ( uint8_t * ) pxTCB->pxEndOfStack;
- }
- #endif
+ #if portSTACK_GROWTH < 0
+ {
+ pucEndOfStack = ( uint8_t * ) pxTCB->pxStack;
+ }
+ #else
+ {
+ pucEndOfStack = ( uint8_t * ) pxTCB->pxEndOfStack;
+ }
+ #endif
- uxReturn = prvTaskCheckFreeStackSpace( pucEndOfStack );
+ uxReturn = prvTaskCheckFreeStackSpace( pucEndOfStack );
- return uxReturn;
- }
+ return uxReturn;
+ }
#endif /* INCLUDE_uxTaskGetStackHighWaterMark2 */
/*-----------------------------------------------------------*/
#if ( INCLUDE_uxTaskGetStackHighWaterMark == 1 )
- UBaseType_t uxTaskGetStackHighWaterMark( TaskHandle_t xTask )
- {
- TCB_t * pxTCB;
- uint8_t * pucEndOfStack;
- UBaseType_t uxReturn;
+ UBaseType_t uxTaskGetStackHighWaterMark( TaskHandle_t xTask )
+ {
+ TCB_t *pxTCB;
+ uint8_t *pucEndOfStack;
+ UBaseType_t uxReturn;
- pxTCB = prvGetTCBFromHandle( xTask );
+ pxTCB = prvGetTCBFromHandle( xTask );
- #if portSTACK_GROWTH < 0
- {
- pucEndOfStack = ( uint8_t * ) pxTCB->pxStack;
- }
- #else
- {
- pucEndOfStack = ( uint8_t * ) pxTCB->pxEndOfStack;
- }
- #endif
+ #if portSTACK_GROWTH < 0
+ {
+ pucEndOfStack = ( uint8_t * ) pxTCB->pxStack;
+ }
+ #else
+ {
+ pucEndOfStack = ( uint8_t * ) pxTCB->pxEndOfStack;
+ }
+ #endif
- uxReturn = ( UBaseType_t ) prvTaskCheckFreeStackSpace( pucEndOfStack );
+ uxReturn = ( UBaseType_t ) prvTaskCheckFreeStackSpace( pucEndOfStack );
- return uxReturn;
- }
+ return uxReturn;
+ }
#endif /* INCLUDE_uxTaskGetStackHighWaterMark */
/*-----------------------------------------------------------*/
#if ( INCLUDE_vTaskDelete == 1 )
- static void prvDeleteTCB( TCB_t * pxTCB )
- {
- /* This call is required specifically for the TriCore port. It must be
- * above the vPortFree() calls. The call is also used by ports/demos that
- * want to allocate and clean RAM statically. */
- portCLEAN_UP_TCB( pxTCB );
+ static void prvDeleteTCB( TCB_t *pxTCB )
+ {
+ /* This call is required specifically for the TriCore port. It must be
+ above the vPortFree() calls. The call is also used by ports/demos that
+ want to allocate and clean RAM statically. */
+ portCLEAN_UP_TCB( pxTCB );
- #if ( ( configUSE_NEWLIB_REENTRANT == 1 ) || ( configUSE_C_RUNTIME_TLS_SUPPORT == 1 ) )
- {
- /* Free up the memory allocated for the task's TLS Block. */
- configDEINIT_TLS_BLOCK( pxCurrentTCB->xTLSBlock );
- }
- #endif
+ /* Free up the memory allocated by the scheduler for the task. It is up
+ to the task to free any memory allocated at the application level. */
+ #if ( configUSE_NEWLIB_REENTRANT == 1 )
+ {
+ _reclaim_reent( &( pxTCB->xNewLib_reent ) );
+ }
+ #endif /* configUSE_NEWLIB_REENTRANT */
- #if ( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 0 ) && ( portUSING_MPU_WRAPPERS == 0 ) )
- {
- /* The task can only have been allocated dynamically - free both
- * the stack and TCB. */
- vPortFreeStack( pxTCB->pxStack );
- vPortFree( pxTCB );
- }
- #elif ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
- {
- /* The task could have been allocated statically or dynamically, so
- * check what was statically allocated before trying to free the
- * memory. */
- if( pxTCB->ucStaticallyAllocated == tskDYNAMICALLY_ALLOCATED_STACK_AND_TCB )
- {
- /* Both the stack and TCB were allocated dynamically, so both
- * must be freed. */
- vPortFreeStack( pxTCB->pxStack );
- vPortFree( pxTCB );
- }
- else if( pxTCB->ucStaticallyAllocated == tskSTATICALLY_ALLOCATED_STACK_ONLY )
- {
- /* Only the stack was statically allocated, so the TCB is the
- * only memory that must be freed. */
- vPortFree( pxTCB );
- }
- else
- {
- /* Neither the stack nor the TCB were allocated dynamically, so
- * nothing needs to be freed. */
- configASSERT( pxTCB->ucStaticallyAllocated == tskSTATICALLY_ALLOCATED_STACK_AND_TCB );
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
- }
+ #if( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 0 ) && ( portUSING_MPU_WRAPPERS == 0 ) )
+ {
+ /* The task can only have been allocated dynamically - free both
+ the stack and TCB. */
+ vPortFree( pxTCB->pxStack );
+ vPortFree( pxTCB );
+ }
+ #elif( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
+ {
+ /* The task could have been allocated statically or dynamically, so
+ check what was statically allocated before trying to free the
+ memory. */
+ if( pxTCB->ucStaticallyAllocated == tskDYNAMICALLY_ALLOCATED_STACK_AND_TCB )
+ {
+ /* Both the stack and TCB were allocated dynamically, so both
+ must be freed. */
+ vPortFree( pxTCB->pxStack );
+ vPortFree( pxTCB );
+ }
+ else if( pxTCB->ucStaticallyAllocated == tskSTATICALLY_ALLOCATED_STACK_ONLY )
+ {
+ /* Only the stack was statically allocated, so the TCB is the
+ only memory that must be freed. */
+ vPortFree( pxTCB );
+ }
+ else
+ {
+ /* Neither the stack nor the TCB were allocated dynamically, so
+ nothing needs to be freed. */
+ configASSERT( pxTCB->ucStaticallyAllocated == tskSTATICALLY_ALLOCATED_STACK_AND_TCB );
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
+ }
#endif /* INCLUDE_vTaskDelete */
/*-----------------------------------------------------------*/
static void prvResetNextTaskUnblockTime( void )
{
- if( listLIST_IS_EMPTY( pxDelayedTaskList ) != pdFALSE )
- {
- /* The new current delayed list is empty. Set xNextTaskUnblockTime to
- * the maximum possible value so it is extremely unlikely that the
- * if( xTickCount >= xNextTaskUnblockTime ) test will pass until
- * there is an item in the delayed list. */
- xNextTaskUnblockTime = portMAX_DELAY;
- }
- else
- {
- /* The new current delayed list is not empty, get the value of
- * the item at the head of the delayed list. This is the time at
- * which the task at the head of the delayed list should be removed
- * from the Blocked state. */
- xNextTaskUnblockTime = listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxDelayedTaskList );
- }
+TCB_t *pxTCB;
+
+ if( listLIST_IS_EMPTY( pxDelayedTaskList ) != pdFALSE )
+ {
+ /* The new current delayed list is empty. Set xNextTaskUnblockTime to
+ the maximum possible value so it is extremely unlikely that the
+ if( xTickCount >= xNextTaskUnblockTime ) test will pass until
+ there is an item in the delayed list. */
+ xNextTaskUnblockTime = portMAX_DELAY;
+ }
+ else
+ {
+ /* The new current delayed list is not empty, get the value of
+ the item at the head of the delayed list. This is the time at
+ which the task at the head of the delayed list should be removed
+ from the Blocked state. */
+ ( pxTCB ) = listGET_OWNER_OF_HEAD_ENTRY( pxDelayedTaskList ); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
+ xNextTaskUnblockTime = listGET_LIST_ITEM_VALUE( &( ( pxTCB )->xStateListItem ) );
+ }
}
/*-----------------------------------------------------------*/
#if ( ( INCLUDE_xTaskGetCurrentTaskHandle == 1 ) || ( configUSE_MUTEXES == 1 ) )
- TaskHandle_t xTaskGetCurrentTaskHandle( void )
- {
- TaskHandle_t xReturn;
+ TaskHandle_t xTaskGetCurrentTaskHandle( void )
+ {
+ TaskHandle_t xReturn;
- /* A critical section is not required as this is not called from
- * an interrupt and the current TCB will always be the same for any
- * individual execution thread. */
- xReturn = pxCurrentTCB;
+ /* A critical section is not required as this is not called from
+ an interrupt and the current TCB will always be the same for any
+ individual execution thread. */
+ xReturn = pxCurrentTCB;
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* ( ( INCLUDE_xTaskGetCurrentTaskHandle == 1 ) || ( configUSE_MUTEXES == 1 ) ) */
/*-----------------------------------------------------------*/
#if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
- BaseType_t xTaskGetSchedulerState( void )
- {
- BaseType_t xReturn;
+ BaseType_t xTaskGetSchedulerState( void )
+ {
+ BaseType_t xReturn;
- if( xSchedulerRunning == pdFALSE )
- {
- xReturn = taskSCHEDULER_NOT_STARTED;
- }
- else
- {
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- xReturn = taskSCHEDULER_RUNNING;
- }
- else
- {
- xReturn = taskSCHEDULER_SUSPENDED;
- }
- }
+ if( xSchedulerRunning == pdFALSE )
+ {
+ xReturn = taskSCHEDULER_NOT_STARTED;
+ }
+ else
+ {
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ xReturn = taskSCHEDULER_RUNNING;
+ }
+ else
+ {
+ xReturn = taskSCHEDULER_SUSPENDED;
+ }
+ }
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) ) */
/*-----------------------------------------------------------*/
#if ( configUSE_MUTEXES == 1 )
- BaseType_t xTaskPriorityInherit( TaskHandle_t const pxMutexHolder )
- {
- TCB_t * const pxMutexHolderTCB = pxMutexHolder;
- BaseType_t xReturn = pdFALSE;
+ BaseType_t xTaskPriorityInherit( TaskHandle_t const pxMutexHolder )
+ {
+ TCB_t * const pxMutexHolderTCB = pxMutexHolder;
+ BaseType_t xReturn = pdFALSE;
- /* If the mutex was given back by an interrupt while the queue was
- * locked then the mutex holder might now be NULL. _RB_ Is this still
- * needed as interrupts can no longer use mutexes? */
- if( pxMutexHolder != NULL )
- {
- /* If the holder of the mutex has a priority below the priority of
- * the task attempting to obtain the mutex then it will temporarily
- * inherit the priority of the task attempting to obtain the mutex. */
- if( pxMutexHolderTCB->uxPriority < pxCurrentTCB->uxPriority )
- {
- /* Adjust the mutex holder state to account for its new
- * priority. Only reset the event list item value if the value is
- * not being used for anything else. */
- if( ( listGET_LIST_ITEM_VALUE( &( pxMutexHolderTCB->xEventListItem ) ) & taskEVENT_LIST_ITEM_VALUE_IN_USE ) == 0UL )
- {
- listSET_LIST_ITEM_VALUE( &( pxMutexHolderTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) pxCurrentTCB->uxPriority ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* If the mutex was given back by an interrupt while the queue was
+ locked then the mutex holder might now be NULL. _RB_ Is this still
+ needed as interrupts can no longer use mutexes? */
+ if( pxMutexHolder != NULL )
+ {
+ /* If the holder of the mutex has a priority below the priority of
+ the task attempting to obtain the mutex then it will temporarily
+ inherit the priority of the task attempting to obtain the mutex. */
+ if( pxMutexHolderTCB->uxPriority < pxCurrentTCB->uxPriority )
+ {
+ /* Adjust the mutex holder state to account for its new
+ priority. Only reset the event list item value if the value is
+ not being used for anything else. */
+ if( ( listGET_LIST_ITEM_VALUE( &( pxMutexHolderTCB->xEventListItem ) ) & taskEVENT_LIST_ITEM_VALUE_IN_USE ) == 0UL )
+ {
+ listSET_LIST_ITEM_VALUE( &( pxMutexHolderTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) pxCurrentTCB->uxPriority ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* If the task being modified is in the ready state it will need
- * to be moved into a new list. */
- if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ pxMutexHolderTCB->uxPriority ] ), &( pxMutexHolderTCB->xStateListItem ) ) != pdFALSE )
- {
- if( uxListRemove( &( pxMutexHolderTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- /* It is known that the task is in its ready list so
- * there is no need to check again and the port level
- * reset macro can be called directly. */
- portRESET_READY_PRIORITY( pxMutexHolderTCB->uxPriority, uxTopReadyPriority );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* If the task being modified is in the ready state it will need
+ to be moved into a new list. */
+ if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ pxMutexHolderTCB->uxPriority ] ), &( pxMutexHolderTCB->xStateListItem ) ) != pdFALSE )
+ {
+ if( uxListRemove( &( pxMutexHolderTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ taskRESET_READY_PRIORITY( pxMutexHolderTCB->uxPriority );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Inherit the priority before being moved into the new list. */
- pxMutexHolderTCB->uxPriority = pxCurrentTCB->uxPriority;
- prvAddTaskToReadyList( pxMutexHolderTCB );
- }
- else
- {
- /* Just inherit the priority. */
- pxMutexHolderTCB->uxPriority = pxCurrentTCB->uxPriority;
- }
+ /* Inherit the priority before being moved into the new list. */
+ pxMutexHolderTCB->uxPriority = pxCurrentTCB->uxPriority;
+ prvAddTaskToReadyList( pxMutexHolderTCB );
+ }
+ else
+ {
+ /* Just inherit the priority. */
+ pxMutexHolderTCB->uxPriority = pxCurrentTCB->uxPriority;
+ }
- traceTASK_PRIORITY_INHERIT( pxMutexHolderTCB, pxCurrentTCB->uxPriority );
+ traceTASK_PRIORITY_INHERIT( pxMutexHolderTCB, pxCurrentTCB->uxPriority );
- /* Inheritance occurred. */
- xReturn = pdTRUE;
- }
- else
- {
- if( pxMutexHolderTCB->uxBasePriority < pxCurrentTCB->uxPriority )
- {
- /* The base priority of the mutex holder is lower than the
- * priority of the task attempting to take the mutex, but the
- * current priority of the mutex holder is not lower than the
- * priority of the task attempting to take the mutex.
- * Therefore the mutex holder must have already inherited a
- * priority, but inheritance would have occurred if that had
- * not been the case. */
- xReturn = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Inheritance occurred. */
+ xReturn = pdTRUE;
+ }
+ else
+ {
+ if( pxMutexHolderTCB->uxBasePriority < pxCurrentTCB->uxPriority )
+ {
+ /* The base priority of the mutex holder is lower than the
+ priority of the task attempting to take the mutex, but the
+ current priority of the mutex holder is not lower than the
+ priority of the task attempting to take the mutex.
+ Therefore the mutex holder must have already inherited a
+ priority, but inheritance would have occurred if that had
+ not been the case. */
+ xReturn = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_MUTEXES */
/*-----------------------------------------------------------*/
#if ( configUSE_MUTEXES == 1 )
- BaseType_t xTaskPriorityDisinherit( TaskHandle_t const pxMutexHolder )
- {
- TCB_t * const pxTCB = pxMutexHolder;
- BaseType_t xReturn = pdFALSE;
+ BaseType_t xTaskPriorityDisinherit( TaskHandle_t const pxMutexHolder )
+ {
+ TCB_t * const pxTCB = pxMutexHolder;
+ BaseType_t xReturn = pdFALSE;
- if( pxMutexHolder != NULL )
- {
- /* A task can only have an inherited priority if it holds the mutex.
- * If the mutex is held by a task then it cannot be given from an
- * interrupt, and if a mutex is given by the holding task then it must
- * be the running state task. */
- configASSERT( pxTCB == pxCurrentTCB );
- configASSERT( pxTCB->uxMutexesHeld );
- ( pxTCB->uxMutexesHeld )--;
+ if( pxMutexHolder != NULL )
+ {
+ /* A task can only have an inherited priority if it holds the mutex.
+ If the mutex is held by a task then it cannot be given from an
+ interrupt, and if a mutex is given by the holding task then it must
+ be the running state task. */
+ configASSERT( pxTCB == pxCurrentTCB );
+ configASSERT( pxTCB->uxMutexesHeld );
+ ( pxTCB->uxMutexesHeld )--;
- /* Has the holder of the mutex inherited the priority of another
- * task? */
- if( pxTCB->uxPriority != pxTCB->uxBasePriority )
- {
- /* Only disinherit if no other mutexes are held. */
- if( pxTCB->uxMutexesHeld == ( UBaseType_t ) 0 )
- {
- /* A task can only have an inherited priority if it holds
- * the mutex. If the mutex is held by a task then it cannot be
- * given from an interrupt, and if a mutex is given by the
- * holding task then it must be the running state task. Remove
- * the holding task from the ready list. */
- if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- portRESET_READY_PRIORITY( pxTCB->uxPriority, uxTopReadyPriority );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Has the holder of the mutex inherited the priority of another
+ task? */
+ if( pxTCB->uxPriority != pxTCB->uxBasePriority )
+ {
+ /* Only disinherit if no other mutexes are held. */
+ if( pxTCB->uxMutexesHeld == ( UBaseType_t ) 0 )
+ {
+ /* A task can only have an inherited priority if it holds
+ the mutex. If the mutex is held by a task then it cannot be
+ given from an interrupt, and if a mutex is given by the
+ holding task then it must be the running state task. Remove
+ the holding task from the ready list. */
+ if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ taskRESET_READY_PRIORITY( pxTCB->uxPriority );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* Disinherit the priority before adding the task into the
- * new ready list. */
- traceTASK_PRIORITY_DISINHERIT( pxTCB, pxTCB->uxBasePriority );
- pxTCB->uxPriority = pxTCB->uxBasePriority;
+ /* Disinherit the priority before adding the task into the
+ new ready list. */
+ traceTASK_PRIORITY_DISINHERIT( pxTCB, pxTCB->uxBasePriority );
+ pxTCB->uxPriority = pxTCB->uxBasePriority;
- /* Reset the event list item value. It cannot be in use for
- * any other purpose if this task is running, and it must be
- * running to give back the mutex. */
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) pxTCB->uxPriority ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- prvAddTaskToReadyList( pxTCB );
+ /* Reset the event list item value. It cannot be in use for
+ any other purpose if this task is running, and it must be
+ running to give back the mutex. */
+ listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) pxTCB->uxPriority ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ prvAddTaskToReadyList( pxTCB );
- /* Return true to indicate that a context switch is required.
- * This is only actually required in the corner case whereby
- * multiple mutexes were held and the mutexes were given back
- * in an order different to that in which they were taken.
- * If a context switch did not occur when the first mutex was
- * returned, even if a task was waiting on it, then a context
- * switch should occur when the last mutex is returned whether
- * a task is waiting on it or not. */
- xReturn = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Return true to indicate that a context switch is required.
+ This is only actually required in the corner case whereby
+ multiple mutexes were held and the mutexes were given back
+ in an order different to that in which they were taken.
+ If a context switch did not occur when the first mutex was
+ returned, even if a task was waiting on it, then a context
+ switch should occur when the last mutex is returned whether
+ a task is waiting on it or not. */
+ xReturn = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_MUTEXES */
/*-----------------------------------------------------------*/
#if ( configUSE_MUTEXES == 1 )
- void vTaskPriorityDisinheritAfterTimeout( TaskHandle_t const pxMutexHolder,
- UBaseType_t uxHighestPriorityWaitingTask )
- {
- TCB_t * const pxTCB = pxMutexHolder;
- UBaseType_t uxPriorityUsedOnEntry, uxPriorityToUse;
- const UBaseType_t uxOnlyOneMutexHeld = ( UBaseType_t ) 1;
+ void vTaskPriorityDisinheritAfterTimeout( TaskHandle_t const pxMutexHolder, UBaseType_t uxHighestPriorityWaitingTask )
+ {
+ TCB_t * const pxTCB = pxMutexHolder;
+ UBaseType_t uxPriorityUsedOnEntry, uxPriorityToUse;
+ const UBaseType_t uxOnlyOneMutexHeld = ( UBaseType_t ) 1;
- if( pxMutexHolder != NULL )
- {
- /* If pxMutexHolder is not NULL then the holder must hold at least
- * one mutex. */
- configASSERT( pxTCB->uxMutexesHeld );
+ if( pxMutexHolder != NULL )
+ {
+ /* If pxMutexHolder is not NULL then the holder must hold at least
+ one mutex. */
+ configASSERT( pxTCB->uxMutexesHeld );
- /* Determine the priority to which the priority of the task that
- * holds the mutex should be set. This will be the greater of the
- * holding task's base priority and the priority of the highest
- * priority task that is waiting to obtain the mutex. */
- if( pxTCB->uxBasePriority < uxHighestPriorityWaitingTask )
- {
- uxPriorityToUse = uxHighestPriorityWaitingTask;
- }
- else
- {
- uxPriorityToUse = pxTCB->uxBasePriority;
- }
+ /* Determine the priority to which the priority of the task that
+ holds the mutex should be set. This will be the greater of the
+ holding task's base priority and the priority of the highest
+ priority task that is waiting to obtain the mutex. */
+ if( pxTCB->uxBasePriority < uxHighestPriorityWaitingTask )
+ {
+ uxPriorityToUse = uxHighestPriorityWaitingTask;
+ }
+ else
+ {
+ uxPriorityToUse = pxTCB->uxBasePriority;
+ }
- /* Does the priority need to change? */
- if( pxTCB->uxPriority != uxPriorityToUse )
- {
- /* Only disinherit if no other mutexes are held. This is a
- * simplification in the priority inheritance implementation. If
- * the task that holds the mutex is also holding other mutexes then
- * the other mutexes may have caused the priority inheritance. */
- if( pxTCB->uxMutexesHeld == uxOnlyOneMutexHeld )
- {
- /* If a task has timed out because it already holds the
- * mutex it was trying to obtain then it cannot of inherited
- * its own priority. */
- configASSERT( pxTCB != pxCurrentTCB );
+ /* Does the priority need to change? */
+ if( pxTCB->uxPriority != uxPriorityToUse )
+ {
+ /* Only disinherit if no other mutexes are held. This is a
+ simplification in the priority inheritance implementation. If
+ the task that holds the mutex is also holding other mutexes then
+ the other mutexes may have caused the priority inheritance. */
+ if( pxTCB->uxMutexesHeld == uxOnlyOneMutexHeld )
+ {
+ /* If a task has timed out because it already holds the
+ mutex it was trying to obtain then it cannot of inherited
+ its own priority. */
+ configASSERT( pxTCB != pxCurrentTCB );
- /* Disinherit the priority, remembering the previous
- * priority to facilitate determining the subject task's
- * state. */
- traceTASK_PRIORITY_DISINHERIT( pxTCB, uxPriorityToUse );
- uxPriorityUsedOnEntry = pxTCB->uxPriority;
- pxTCB->uxPriority = uxPriorityToUse;
+ /* Disinherit the priority, remembering the previous
+ priority to facilitate determining the subject task's
+ state. */
+ traceTASK_PRIORITY_DISINHERIT( pxTCB, pxTCB->uxBasePriority );
+ uxPriorityUsedOnEntry = pxTCB->uxPriority;
+ pxTCB->uxPriority = uxPriorityToUse;
- /* Only reset the event list item value if the value is not
- * being used for anything else. */
- if( ( listGET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ) ) & taskEVENT_LIST_ITEM_VALUE_IN_USE ) == 0UL )
- {
- listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) uxPriorityToUse ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Only reset the event list item value if the value is not
+ being used for anything else. */
+ if( ( listGET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ) ) & taskEVENT_LIST_ITEM_VALUE_IN_USE ) == 0UL )
+ {
+ listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) uxPriorityToUse ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- /* If the running task is not the task that holds the mutex
- * then the task that holds the mutex could be in either the
- * Ready, Blocked or Suspended states. Only remove the task
- * from its current state list if it is in the Ready state as
- * the task's priority is going to change and there is one
- * Ready list per priority. */
- if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ uxPriorityUsedOnEntry ] ), &( pxTCB->xStateListItem ) ) != pdFALSE )
- {
- if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- /* It is known that the task is in its ready list so
- * there is no need to check again and the port level
- * reset macro can be called directly. */
- portRESET_READY_PRIORITY( pxTCB->uxPriority, uxTopReadyPriority );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* If the running task is not the task that holds the mutex
+ then the task that holds the mutex could be in either the
+ Ready, Blocked or Suspended states. Only remove the task
+ from its current state list if it is in the Ready state as
+ the task's priority is going to change and there is one
+ Ready list per priority. */
+ if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ uxPriorityUsedOnEntry ] ), &( pxTCB->xStateListItem ) ) != pdFALSE )
+ {
+ if( uxListRemove( &( pxTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ taskRESET_READY_PRIORITY( pxTCB->uxPriority );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- prvAddTaskToReadyList( pxTCB );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ prvAddTaskToReadyList( pxTCB );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
#endif /* configUSE_MUTEXES */
/*-----------------------------------------------------------*/
#if ( portCRITICAL_NESTING_IN_TCB == 1 )
- void vTaskEnterCritical( void )
- {
- portDISABLE_INTERRUPTS();
+ void vTaskEnterCritical( void )
+ {
+ portDISABLE_INTERRUPTS();
- if( xSchedulerRunning != pdFALSE )
- {
- ( pxCurrentTCB->uxCriticalNesting )++;
+ if( xSchedulerRunning != pdFALSE )
+ {
+ ( pxCurrentTCB->uxCriticalNesting )++;
- /* This is not the interrupt safe version of the enter critical
- * function so assert() if it is being called from an interrupt
- * context. Only API functions that end in "FromISR" can be used in an
- * interrupt. Only assert if the critical nesting count is 1 to
- * protect against recursive calls if the assert function also uses a
- * critical section. */
- if( pxCurrentTCB->uxCriticalNesting == 1 )
- {
- portASSERT_IF_IN_ISR();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ /* This is not the interrupt safe version of the enter critical
+ function so assert() if it is being called from an interrupt
+ context. Only API functions that end in "FromISR" can be used in an
+ interrupt. Only assert if the critical nesting count is 1 to
+ protect against recursive calls if the assert function also uses a
+ critical section. */
+ if( pxCurrentTCB->uxCriticalNesting == 1 )
+ {
+ portASSERT_IF_IN_ISR();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
#endif /* portCRITICAL_NESTING_IN_TCB */
/*-----------------------------------------------------------*/
#if ( portCRITICAL_NESTING_IN_TCB == 1 )
- void vTaskExitCritical( void )
- {
- if( xSchedulerRunning != pdFALSE )
- {
- if( pxCurrentTCB->uxCriticalNesting > 0U )
- {
- ( pxCurrentTCB->uxCriticalNesting )--;
+ void vTaskExitCritical( void )
+ {
+ if( xSchedulerRunning != pdFALSE )
+ {
+ if( pxCurrentTCB->uxCriticalNesting > 0U )
+ {
+ ( pxCurrentTCB->uxCriticalNesting )--;
- if( pxCurrentTCB->uxCriticalNesting == 0U )
- {
- portENABLE_INTERRUPTS();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ if( pxCurrentTCB->uxCriticalNesting == 0U )
+ {
+ portENABLE_INTERRUPTS();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
#endif /* portCRITICAL_NESTING_IN_TCB */
/*-----------------------------------------------------------*/
-#if ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 )
-
- static char * prvWriteNameToBuffer( char * pcBuffer,
- const char * pcTaskName )
- {
- size_t x;
-
- /* Start by copying the entire string. */
- strcpy( pcBuffer, pcTaskName );
-
- /* Pad the end of the string with spaces to ensure columns line up when
- * printed out. */
- for( x = strlen( pcBuffer ); x < ( size_t ) ( configMAX_TASK_NAME_LEN - 1 ); x++ )
- {
- pcBuffer[ x ] = ' ';
- }
-
- /* Terminate. */
- pcBuffer[ x ] = ( char ) 0x00;
-
- /* Return the new end of string. */
- return &( pcBuffer[ x ] );
- }
-
-#endif /* ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) */
-/*-----------------------------------------------------------*/
-
#if ( ( configUSE_TRACE_FACILITY == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) )
- void vTaskList( char * pcWriteBuffer )
- {
- TaskStatus_t * pxTaskStatusArray;
- UBaseType_t uxArraySize, x;
- char cStatus;
+ static char *prvWriteNameToBuffer( char *pcBuffer, const char *pcTaskName )
+ {
+ size_t x;
- /*
- * PLEASE NOTE:
- *
- * This function is provided for convenience only, and is used by many
- * of the demo applications. Do not consider it to be part of the
- * scheduler.
- *
- * vTaskList() calls uxTaskGetSystemState(), then formats part of the
- * uxTaskGetSystemState() output into a human readable table that
- * displays task: names, states, priority, stack usage and task number.
- * Stack usage specified as the number of unused StackType_t words stack can hold
- * on top of stack - not the number of bytes.
- *
- * vTaskList() has a dependency on the sprintf() C library function that
- * might bloat the code size, use a lot of stack, and provide different
- * results on different platforms. An alternative, tiny, third party,
- * and limited functionality implementation of sprintf() is provided in
- * many of the FreeRTOS/Demo sub-directories in a file called
- * printf-stdarg.c (note printf-stdarg.c does not provide a full
- * snprintf() implementation!).
- *
- * It is recommended that production systems call uxTaskGetSystemState()
- * directly to get access to raw stats data, rather than indirectly
- * through a call to vTaskList().
- */
+ /* Start by copying the entire string. */
+ strcpy( pcBuffer, pcTaskName );
+
+ /* Pad the end of the string with spaces to ensure columns line up when
+ printed out. */
+ for( x = strlen( pcBuffer ); x < ( size_t ) ( configMAX_TASK_NAME_LEN - 1 ); x++ )
+ {
+ pcBuffer[ x ] = ' ';
+ }
+
+ /* Terminate. */
+ pcBuffer[ x ] = ( char ) 0x00;
+
+ /* Return the new end of string. */
+ return &( pcBuffer[ x ] );
+ }
+
+#endif /* ( configUSE_TRACE_FACILITY == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) */
+/*-----------------------------------------------------------*/
+
+#if ( ( configUSE_TRACE_FACILITY == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
+
+ void vTaskList( char * pcWriteBuffer )
+ {
+ TaskStatus_t *pxTaskStatusArray;
+ UBaseType_t uxArraySize, x;
+ char cStatus;
+ uint32_t ulTotalTime, ulStatsAsPercentage;
- /* Make sure the write buffer does not contain a string. */
- *pcWriteBuffer = ( char ) 0x00;
+ /*
+ * PLEASE NOTE:
+ *
+ * This function is provided for convenience only, and is used by many
+ * of the demo applications. Do not consider it to be part of the
+ * scheduler.
+ *
+ * vTaskList() calls uxTaskGetSystemState(), then formats part of the
+ * uxTaskGetSystemState() output into a human readable table that
+ * displays task names, states and stack usage.
+ *
+ * vTaskList() has a dependency on the sprintf() C library function that
+ * might bloat the code size, use a lot of stack, and provide different
+ * results on different platforms. An alternative, tiny, third party,
+ * and limited functionality implementation of sprintf() is provided in
+ * many of the FreeRTOS/Demo sub-directories in a file called
+ * printf-stdarg.c (note printf-stdarg.c does not provide a full
+ * snprintf() implementation!).
+ *
+ * It is recommended that production systems call uxTaskGetSystemState()
+ * directly to get access to raw stats data, rather than indirectly
+ * through a call to vTaskList().
+ */
- /* Take a snapshot of the number of tasks in case it changes while this
- * function is executing. */
- uxArraySize = uxCurrentNumberOfTasks;
- /* Allocate an array index for each task. NOTE! if
- * configSUPPORT_DYNAMIC_ALLOCATION is set to 0 then pvPortMalloc() will
- * equate to NULL. */
- pxTaskStatusArray = pvPortMalloc( uxCurrentNumberOfTasks * sizeof( TaskStatus_t ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation allocates a struct that has the alignment requirements of a pointer. */
+ /* Make sure the write buffer does not contain a string. */
+ *pcWriteBuffer = ( char ) 0x00;
- if( pxTaskStatusArray != NULL )
- {
- /* Generate the (binary) data. */
- uxArraySize = uxTaskGetSystemState( pxTaskStatusArray, uxArraySize, NULL );
+ /* Take a snapshot of the number of tasks in case it changes while this
+ function is executing. */
+ uxArraySize = uxCurrentNumberOfTasks;
- /* Create a human readable table from the binary data. */
- for( x = 0; x < uxArraySize; x++ )
- {
- switch( pxTaskStatusArray[ x ].eCurrentState )
- {
- case eRunning:
- cStatus = tskRUNNING_CHAR;
- break;
+ /* Allocate an array index for each task. NOTE! if
+ configSUPPORT_DYNAMIC_ALLOCATION is set to 0 then pvPortMalloc() will
+ equate to NULL. */
+ pxTaskStatusArray = pvPortMalloc( uxCurrentNumberOfTasks * sizeof( TaskStatus_t ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation allocates a struct that has the alignment requirements of a pointer. */
- case eReady:
- cStatus = tskREADY_CHAR;
- break;
+ if( pxTaskStatusArray != NULL )
+ {
+ /* Generate the (binary) data. */
+ uxArraySize = uxTaskGetSystemState( pxTaskStatusArray, uxArraySize, &ulTotalTime );
+ ulTotalTime /= 100UL;
- case eBlocked:
- cStatus = tskBLOCKED_CHAR;
- break;
+ /* Create a human readable table from the binary data. */
+ for( x = 0; x < uxArraySize; x++ )
+ {
+ switch( pxTaskStatusArray[ x ].eCurrentState )
+ {
+ case eRunning: cStatus = tskRUNNING_CHAR;
+ break;
- case eSuspended:
- cStatus = tskSUSPENDED_CHAR;
- break;
+ case eReady: cStatus = tskREADY_CHAR;
+ break;
- case eDeleted:
- cStatus = tskDELETED_CHAR;
- break;
+ case eBlocked: cStatus = tskBLOCKED_CHAR;
+ break;
- case eInvalid: /* Fall through. */
- default: /* Should not get here, but it is included
- * to prevent static checking errors. */
- cStatus = ( char ) 0x00;
- break;
- }
+ case eSuspended: cStatus = tskSUSPENDED_CHAR;
+ break;
- /* Write the task name to the string, padding with spaces so it
- * can be printed in tabular form more easily. */
- pcWriteBuffer = prvWriteNameToBuffer( pcWriteBuffer, pxTaskStatusArray[ x ].pcTaskName );
+ case eDeleted: cStatus = tskDELETED_CHAR;
+ break;
- /* Write the rest of the string. */
- sprintf( pcWriteBuffer, "\t%c\t%u\t%u\t%u\r\n", cStatus, ( unsigned int ) pxTaskStatusArray[ x ].uxCurrentPriority, ( unsigned int ) pxTaskStatusArray[ x ].usStackHighWaterMark, ( unsigned int ) pxTaskStatusArray[ x ].xTaskNumber ); /*lint !e586 sprintf() allowed as this is compiled with many compilers and this is a utility function only - not part of the core kernel implementation. */
- pcWriteBuffer += strlen( pcWriteBuffer ); /*lint !e9016 Pointer arithmetic ok on char pointers especially as in this case where it best denotes the intent of the code. */
- }
+ case eInvalid: /* Fall through. */
+ default: /* Should not get here, but it is included
+ to prevent static checking errors. */
+ cStatus = ( char ) 0x00;
+ break;
+ }
- /* Free the array again. NOTE! If configSUPPORT_DYNAMIC_ALLOCATION
- * is 0 then vPortFree() will be #defined to nothing. */
- vPortFree( pxTaskStatusArray );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ /* Write the task name to the string, padding with spaces so it
+ can be printed in tabular form more easily. */
+ pcWriteBuffer = prvWriteNameToBuffer( pcWriteBuffer, pxTaskStatusArray[ x ].pcTaskName );
-#endif /* ( ( configUSE_TRACE_FACILITY == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) ) */
+
+ ulStatsAsPercentage = ulTotalTime == 0 ? 0 : pxTaskStatusArray[ x ].ulRunTimeCounter / ulTotalTime;
+ /* Write the rest of the string. */
+ sprintf( pcWriteBuffer, "\t%u\t%c\t%u\t\t%u\t\t%u\t\t%u\t%u\t\r\n",
+ ( unsigned int ) pxTaskStatusArray[ x ].xTaskNumber,
+ cStatus,
+ ( unsigned int ) pxTaskStatusArray[ x ].uxCurrentPriority,
+ ( unsigned int ) pxTaskStatusArray[ x ].uStackTotal,
+ ( unsigned int ) pxTaskStatusArray[ x ].usStackHighWaterMark,
+ ( unsigned int ) pxTaskStatusArray[ x ].ulRunTimeCounter,
+ ( unsigned int ) ulStatsAsPercentage);
+ pcWriteBuffer += strlen( pcWriteBuffer ); /*lint !e9016 Pointer arithmetic ok on char pointers especially as in this case where it best denotes the intent of the code. */
+ }
+
+ /* Free the array again. NOTE! If configSUPPORT_DYNAMIC_ALLOCATION
+ is 0 then vPortFree() will be #defined to nothing. */
+ vPortFree( pxTaskStatusArray );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+
+#endif /* ( ( configUSE_TRACE_FACILITY == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) ) */
/*----------------------------------------------------------*/
-#if ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) && ( configUSE_TRACE_FACILITY == 1 ) )
+#if ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
- void vTaskGetRunTimeStats( char * pcWriteBuffer )
- {
- TaskStatus_t * pxTaskStatusArray;
- UBaseType_t uxArraySize, x;
- configRUN_TIME_COUNTER_TYPE ulTotalTime, ulStatsAsPercentage;
+ void vTaskGetRunTimeStats( char *pcWriteBuffer )
+ {
+ TaskStatus_t *pxTaskStatusArray;
+ UBaseType_t uxArraySize, x;
+ uint32_t ulTotalTime, ulStatsAsPercentage;
- /*
- * PLEASE NOTE:
- *
- * This function is provided for convenience only, and is used by many
- * of the demo applications. Do not consider it to be part of the
- * scheduler.
- *
- * vTaskGetRunTimeStats() calls uxTaskGetSystemState(), then formats part
- * of the uxTaskGetSystemState() output into a human readable table that
- * displays the amount of time each task has spent in the Running state
- * in both absolute and percentage terms.
- *
- * vTaskGetRunTimeStats() has a dependency on the sprintf() C library
- * function that might bloat the code size, use a lot of stack, and
- * provide different results on different platforms. An alternative,
- * tiny, third party, and limited functionality implementation of
- * sprintf() is provided in many of the FreeRTOS/Demo sub-directories in
- * a file called printf-stdarg.c (note printf-stdarg.c does not provide
- * a full snprintf() implementation!).
- *
- * It is recommended that production systems call uxTaskGetSystemState()
- * directly to get access to raw stats data, rather than indirectly
- * through a call to vTaskGetRunTimeStats().
- */
+ #if( configUSE_TRACE_FACILITY != 1 )
+ {
+ #error configUSE_TRACE_FACILITY must also be set to 1 in FreeRTOSConfig.h to use vTaskGetRunTimeStats().
+ }
+ #endif
- /* Make sure the write buffer does not contain a string. */
- *pcWriteBuffer = ( char ) 0x00;
+ /*
+ * PLEASE NOTE:
+ *
+ * This function is provided for convenience only, and is used by many
+ * of the demo applications. Do not consider it to be part of the
+ * scheduler.
+ *
+ * vTaskGetRunTimeStats() calls uxTaskGetSystemState(), then formats part
+ * of the uxTaskGetSystemState() output into a human readable table that
+ * displays the amount of time each task has spent in the Running state
+ * in both absolute and percentage terms.
+ *
+ * vTaskGetRunTimeStats() has a dependency on the sprintf() C library
+ * function that might bloat the code size, use a lot of stack, and
+ * provide different results on different platforms. An alternative,
+ * tiny, third party, and limited functionality implementation of
+ * sprintf() is provided in many of the FreeRTOS/Demo sub-directories in
+ * a file called printf-stdarg.c (note printf-stdarg.c does not provide
+ * a full snprintf() implementation!).
+ *
+ * It is recommended that production systems call uxTaskGetSystemState()
+ * directly to get access to raw stats data, rather than indirectly
+ * through a call to vTaskGetRunTimeStats().
+ */
- /* Take a snapshot of the number of tasks in case it changes while this
- * function is executing. */
- uxArraySize = uxCurrentNumberOfTasks;
+ /* Make sure the write buffer does not contain a string. */
+ *pcWriteBuffer = ( char ) 0x00;
- /* Allocate an array index for each task. NOTE! If
- * configSUPPORT_DYNAMIC_ALLOCATION is set to 0 then pvPortMalloc() will
- * equate to NULL. */
- pxTaskStatusArray = pvPortMalloc( uxCurrentNumberOfTasks * sizeof( TaskStatus_t ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation allocates a struct that has the alignment requirements of a pointer. */
+ /* Take a snapshot of the number of tasks in case it changes while this
+ function is executing. */
+ uxArraySize = uxCurrentNumberOfTasks;
- if( pxTaskStatusArray != NULL )
- {
- /* Generate the (binary) data. */
- uxArraySize = uxTaskGetSystemState( pxTaskStatusArray, uxArraySize, &ulTotalTime );
+ /* Allocate an array index for each task. NOTE! If
+ configSUPPORT_DYNAMIC_ALLOCATION is set to 0 then pvPortMalloc() will
+ equate to NULL. */
+ pxTaskStatusArray = pvPortMalloc( uxCurrentNumberOfTasks * sizeof( TaskStatus_t ) ); /*lint !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack and this allocation allocates a struct that has the alignment requirements of a pointer. */
- /* For percentage calculations. */
- ulTotalTime /= 100UL;
+ if( pxTaskStatusArray != NULL )
+ {
+ /* Generate the (binary) data. */
+ uxArraySize = uxTaskGetSystemState( pxTaskStatusArray, uxArraySize, &ulTotalTime );
- /* Avoid divide by zero errors. */
- if( ulTotalTime > 0UL )
- {
- /* Create a human readable table from the binary data. */
- for( x = 0; x < uxArraySize; x++ )
- {
- /* What percentage of the total run time has the task used?
- * This will always be rounded down to the nearest integer.
- * ulTotalRunTime has already been divided by 100. */
- ulStatsAsPercentage = pxTaskStatusArray[ x ].ulRunTimeCounter / ulTotalTime;
+ /* For percentage calculations. */
+ ulTotalTime /= 100UL;
- /* Write the task name to the string, padding with
- * spaces so it can be printed in tabular form more
- * easily. */
- pcWriteBuffer = prvWriteNameToBuffer( pcWriteBuffer, pxTaskStatusArray[ x ].pcTaskName );
+ /* Avoid divide by zero errors. */
+ if( ulTotalTime > 0UL )
+ {
+ /* Create a human readable table from the binary data. */
+ for( x = 0; x < uxArraySize; x++ )
+ {
+ /* What percentage of the total run time has the task used?
+ This will always be rounded down to the nearest integer.
+ ulTotalRunTimeDiv100 has already been divided by 100. */
+ ulStatsAsPercentage = pxTaskStatusArray[ x ].ulRunTimeCounter / ulTotalTime;
- if( ulStatsAsPercentage > 0UL )
- {
- #ifdef portLU_PRINTF_SPECIFIER_REQUIRED
- {
- sprintf( pcWriteBuffer, "\t%lu\t\t%lu%%\r\n", pxTaskStatusArray[ x ].ulRunTimeCounter, ulStatsAsPercentage );
- }
- #else
- {
- /* sizeof( int ) == sizeof( long ) so a smaller
- * printf() library can be used. */
- sprintf( pcWriteBuffer, "\t%u\t\t%u%%\r\n", ( unsigned int ) pxTaskStatusArray[ x ].ulRunTimeCounter, ( unsigned int ) ulStatsAsPercentage ); /*lint !e586 sprintf() allowed as this is compiled with many compilers and this is a utility function only - not part of the core kernel implementation. */
- }
- #endif
- }
- else
- {
- /* If the percentage is zero here then the task has
- * consumed less than 1% of the total run time. */
- #ifdef portLU_PRINTF_SPECIFIER_REQUIRED
- {
- sprintf( pcWriteBuffer, "\t%lu\t\t<1%%\r\n", pxTaskStatusArray[ x ].ulRunTimeCounter );
- }
- #else
- {
- /* sizeof( int ) == sizeof( long ) so a smaller
- * printf() library can be used. */
- sprintf( pcWriteBuffer, "\t%u\t\t<1%%\r\n", ( unsigned int ) pxTaskStatusArray[ x ].ulRunTimeCounter ); /*lint !e586 sprintf() allowed as this is compiled with many compilers and this is a utility function only - not part of the core kernel implementation. */
- }
- #endif
- }
+ /* Write the task name to the string, padding with
+ spaces so it can be printed in tabular form more
+ easily. */
+ pcWriteBuffer = prvWriteNameToBuffer( pcWriteBuffer, pxTaskStatusArray[ x ].pcTaskName );
- pcWriteBuffer += strlen( pcWriteBuffer ); /*lint !e9016 Pointer arithmetic ok on char pointers especially as in this case where it best denotes the intent of the code. */
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ if( ulStatsAsPercentage > 0UL )
+ {
+ #ifdef portLU_PRINTF_SPECIFIER_REQUIRED
+ {
+ sprintf( pcWriteBuffer, "\t%lu\t\t%lu%%\r\n", pxTaskStatusArray[ x ].ulRunTimeCounter, ulStatsAsPercentage );
+ }
+ #else
+ {
+ /* sizeof( int ) == sizeof( long ) so a smaller
+ printf() library can be used. */
+ sprintf( pcWriteBuffer, "\t%u\t\t%u%%\r\n", ( unsigned int ) pxTaskStatusArray[ x ].ulRunTimeCounter, ( unsigned int ) ulStatsAsPercentage ); /*lint !e586 sprintf() allowed as this is compiled with many compilers and this is a utility function only - not part of the core kernel implementation. */
+ }
+ #endif
+ }
+ else
+ {
+ /* If the percentage is zero here then the task has
+ consumed less than 1% of the total run time. */
+ #ifdef portLU_PRINTF_SPECIFIER_REQUIRED
+ {
+ sprintf( pcWriteBuffer, "\t%lu\t\t<1%%\r\n", pxTaskStatusArray[ x ].ulRunTimeCounter );
+ }
+ #else
+ {
+ /* sizeof( int ) == sizeof( long ) so a smaller
+ printf() library can be used. */
+ sprintf( pcWriteBuffer, "\t%u\t\t<1%%\r\n", ( unsigned int ) pxTaskStatusArray[ x ].ulRunTimeCounter ); /*lint !e586 sprintf() allowed as this is compiled with many compilers and this is a utility function only - not part of the core kernel implementation. */
+ }
+ #endif
+ }
- /* Free the array again. NOTE! If configSUPPORT_DYNAMIC_ALLOCATION
- * is 0 then vPortFree() will be #defined to nothing. */
- vPortFree( pxTaskStatusArray );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ pcWriteBuffer += strlen( pcWriteBuffer ); /*lint !e9016 Pointer arithmetic ok on char pointers especially as in this case where it best denotes the intent of the code. */
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
-#endif /* ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) ) */
+ /* Free the array again. NOTE! If configSUPPORT_DYNAMIC_ALLOCATION
+ is 0 then vPortFree() will be #defined to nothing. */
+ vPortFree( pxTaskStatusArray );
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+
+#endif /* ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) ) */
/*-----------------------------------------------------------*/
TickType_t uxTaskResetEventItemValue( void )
{
- TickType_t uxReturn;
+TickType_t uxReturn;
- uxReturn = listGET_LIST_ITEM_VALUE( &( pxCurrentTCB->xEventListItem ) );
+ uxReturn = listGET_LIST_ITEM_VALUE( &( pxCurrentTCB->xEventListItem ) );
- /* Reset the event list item to its normal value - so it can be used with
- * queues and semaphores. */
- listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xEventListItem ), ( ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) pxCurrentTCB->uxPriority ) ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
+ /* Reset the event list item to its normal value - so it can be used with
+ queues and semaphores. */
+ listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xEventListItem ), ( ( TickType_t ) configMAX_PRIORITIES - ( TickType_t ) pxCurrentTCB->uxPriority ) ); /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
- return uxReturn;
+ return uxReturn;
}
/*-----------------------------------------------------------*/
#if ( configUSE_MUTEXES == 1 )
- TaskHandle_t pvTaskIncrementMutexHeldCount( void )
- {
- /* If xSemaphoreCreateMutex() is called before any tasks have been created
- * then pxCurrentTCB will be NULL. */
- if( pxCurrentTCB != NULL )
- {
- ( pxCurrentTCB->uxMutexesHeld )++;
- }
+ TaskHandle_t pvTaskIncrementMutexHeldCount( void )
+ {
+ /* If xSemaphoreCreateMutex() is called before any tasks have been created
+ then pxCurrentTCB will be NULL. */
+ if( pxCurrentTCB != NULL )
+ {
+ ( pxCurrentTCB->uxMutexesHeld )++;
+ }
- return pxCurrentTCB;
- }
+ return pxCurrentTCB;
+ }
#endif /* configUSE_MUTEXES */
/*-----------------------------------------------------------*/
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
+#if( configUSE_TASK_NOTIFICATIONS == 1 )
- uint32_t ulTaskGenericNotifyTake( UBaseType_t uxIndexToWait,
- BaseType_t xClearCountOnExit,
- TickType_t xTicksToWait )
- {
- uint32_t ulReturn;
+ uint32_t ulTaskNotifyTake( BaseType_t xClearCountOnExit, TickType_t xTicksToWait )
+ {
+ uint32_t ulReturn;
- configASSERT( uxIndexToWait < configTASK_NOTIFICATION_ARRAY_ENTRIES );
+ taskENTER_CRITICAL();
+ {
+ /* Only block if the notification count is not already non-zero. */
+ if( pxCurrentTCB->ulNotifiedValue == 0UL )
+ {
+ /* Mark this task as waiting for a notification. */
+ pxCurrentTCB->ucNotifyState = taskWAITING_NOTIFICATION;
- taskENTER_CRITICAL();
- {
- /* Only block if the notification count is not already non-zero. */
- if( pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ] == 0UL )
- {
- /* Mark this task as waiting for a notification. */
- pxCurrentTCB->ucNotifyState[ uxIndexToWait ] = taskWAITING_NOTIFICATION;
+ if( xTicksToWait > ( TickType_t ) 0 )
+ {
+ prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
+ traceTASK_NOTIFY_TAKE_BLOCK();
- if( xTicksToWait > ( TickType_t ) 0 )
- {
- prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
- traceTASK_NOTIFY_TAKE_BLOCK( uxIndexToWait );
+ /* All ports are written to allow a yield in a critical
+ section (some will yield immediately, others wait until the
+ critical section exits) - but it is not something that
+ application code should ever do. */
+ portYIELD_WITHIN_API();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ taskEXIT_CRITICAL();
- /* All ports are written to allow a yield in a critical
- * section (some will yield immediately, others wait until the
- * critical section exits) - but it is not something that
- * application code should ever do. */
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
+ taskENTER_CRITICAL();
+ {
+ traceTASK_NOTIFY_TAKE();
+ ulReturn = pxCurrentTCB->ulNotifiedValue;
- taskENTER_CRITICAL();
- {
- traceTASK_NOTIFY_TAKE( uxIndexToWait );
- ulReturn = pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ];
+ if( ulReturn != 0UL )
+ {
+ if( xClearCountOnExit != pdFALSE )
+ {
+ pxCurrentTCB->ulNotifiedValue = 0UL;
+ }
+ else
+ {
+ pxCurrentTCB->ulNotifiedValue = ulReturn - ( uint32_t ) 1;
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- if( ulReturn != 0UL )
- {
- if( xClearCountOnExit != pdFALSE )
- {
- pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ] = 0UL;
- }
- else
- {
- pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ] = ulReturn - ( uint32_t ) 1;
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ pxCurrentTCB->ucNotifyState = taskNOT_WAITING_NOTIFICATION;
+ }
+ taskEXIT_CRITICAL();
- pxCurrentTCB->ucNotifyState[ uxIndexToWait ] = taskNOT_WAITING_NOTIFICATION;
- }
- taskEXIT_CRITICAL();
-
- return ulReturn;
- }
+ return ulReturn;
+ }
#endif /* configUSE_TASK_NOTIFICATIONS */
/*-----------------------------------------------------------*/
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
+#if( configUSE_TASK_NOTIFICATIONS == 1 )
- BaseType_t xTaskGenericNotifyWait( UBaseType_t uxIndexToWait,
- uint32_t ulBitsToClearOnEntry,
- uint32_t ulBitsToClearOnExit,
- uint32_t * pulNotificationValue,
- TickType_t xTicksToWait )
- {
- BaseType_t xReturn;
+ BaseType_t xTaskNotifyWait( uint32_t ulBitsToClearOnEntry, uint32_t ulBitsToClearOnExit, uint32_t *pulNotificationValue, TickType_t xTicksToWait )
+ {
+ BaseType_t xReturn;
- configASSERT( uxIndexToWait < configTASK_NOTIFICATION_ARRAY_ENTRIES );
+ taskENTER_CRITICAL();
+ {
+ /* Only block if a notification is not already pending. */
+ if( pxCurrentTCB->ucNotifyState != taskNOTIFICATION_RECEIVED )
+ {
+ /* Clear bits in the task's notification value as bits may get
+ set by the notifying task or interrupt. This can be used to
+ clear the value to zero. */
+ pxCurrentTCB->ulNotifiedValue &= ~ulBitsToClearOnEntry;
- taskENTER_CRITICAL();
- {
- /* Only block if a notification is not already pending. */
- if( pxCurrentTCB->ucNotifyState[ uxIndexToWait ] != taskNOTIFICATION_RECEIVED )
- {
- /* Clear bits in the task's notification value as bits may get
- * set by the notifying task or interrupt. This can be used to
- * clear the value to zero. */
- pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ] &= ~ulBitsToClearOnEntry;
+ /* Mark this task as waiting for a notification. */
+ pxCurrentTCB->ucNotifyState = taskWAITING_NOTIFICATION;
- /* Mark this task as waiting for a notification. */
- pxCurrentTCB->ucNotifyState[ uxIndexToWait ] = taskWAITING_NOTIFICATION;
+ if( xTicksToWait > ( TickType_t ) 0 )
+ {
+ prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
+ traceTASK_NOTIFY_WAIT_BLOCK();
- if( xTicksToWait > ( TickType_t ) 0 )
- {
- prvAddCurrentTaskToDelayedList( xTicksToWait, pdTRUE );
- traceTASK_NOTIFY_WAIT_BLOCK( uxIndexToWait );
+ /* All ports are written to allow a yield in a critical
+ section (some will yield immediately, others wait until the
+ critical section exits) - but it is not something that
+ application code should ever do. */
+ portYIELD_WITHIN_API();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ taskEXIT_CRITICAL();
- /* All ports are written to allow a yield in a critical
- * section (some will yield immediately, others wait until the
- * critical section exits) - but it is not something that
- * application code should ever do. */
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
+ taskENTER_CRITICAL();
+ {
+ traceTASK_NOTIFY_WAIT();
- taskENTER_CRITICAL();
- {
- traceTASK_NOTIFY_WAIT( uxIndexToWait );
+ if( pulNotificationValue != NULL )
+ {
+ /* Output the current notification value, which may or may not
+ have changed. */
+ *pulNotificationValue = pxCurrentTCB->ulNotifiedValue;
+ }
- if( pulNotificationValue != NULL )
- {
- /* Output the current notification value, which may or may not
- * have changed. */
- *pulNotificationValue = pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ];
- }
+ /* If ucNotifyValue is set then either the task never entered the
+ blocked state (because a notification was already pending) or the
+ task unblocked because of a notification. Otherwise the task
+ unblocked because of a timeout. */
+ if( pxCurrentTCB->ucNotifyState != taskNOTIFICATION_RECEIVED )
+ {
+ /* A notification was not received. */
+ xReturn = pdFALSE;
+ }
+ else
+ {
+ /* A notification was already pending or a notification was
+ received while the task was waiting. */
+ pxCurrentTCB->ulNotifiedValue &= ~ulBitsToClearOnExit;
+ xReturn = pdTRUE;
+ }
- /* If ucNotifyValue is set then either the task never entered the
- * blocked state (because a notification was already pending) or the
- * task unblocked because of a notification. Otherwise the task
- * unblocked because of a timeout. */
- if( pxCurrentTCB->ucNotifyState[ uxIndexToWait ] != taskNOTIFICATION_RECEIVED )
- {
- /* A notification was not received. */
- xReturn = pdFALSE;
- }
- else
- {
- /* A notification was already pending or a notification was
- * received while the task was waiting. */
- pxCurrentTCB->ulNotifiedValue[ uxIndexToWait ] &= ~ulBitsToClearOnExit;
- xReturn = pdTRUE;
- }
+ pxCurrentTCB->ucNotifyState = taskNOT_WAITING_NOTIFICATION;
+ }
+ taskEXIT_CRITICAL();
- pxCurrentTCB->ucNotifyState[ uxIndexToWait ] = taskNOT_WAITING_NOTIFICATION;
- }
- taskEXIT_CRITICAL();
-
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_TASK_NOTIFICATIONS */
/*-----------------------------------------------------------*/
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
+#if( configUSE_TASK_NOTIFICATIONS == 1 )
- BaseType_t xTaskGenericNotify( TaskHandle_t xTaskToNotify,
- UBaseType_t uxIndexToNotify,
- uint32_t ulValue,
- eNotifyAction eAction,
- uint32_t * pulPreviousNotificationValue )
- {
- TCB_t * pxTCB;
- BaseType_t xReturn = pdPASS;
- uint8_t ucOriginalNotifyState;
+ BaseType_t xTaskGenericNotify( TaskHandle_t xTaskToNotify, uint32_t ulValue, eNotifyAction eAction, uint32_t *pulPreviousNotificationValue )
+ {
+ TCB_t * pxTCB;
+ BaseType_t xReturn = pdPASS;
+ uint8_t ucOriginalNotifyState;
- configASSERT( uxIndexToNotify < configTASK_NOTIFICATION_ARRAY_ENTRIES );
- configASSERT( xTaskToNotify );
- pxTCB = xTaskToNotify;
+ configASSERT( xTaskToNotify );
+ pxTCB = xTaskToNotify;
- taskENTER_CRITICAL();
- {
- if( pulPreviousNotificationValue != NULL )
- {
- *pulPreviousNotificationValue = pxTCB->ulNotifiedValue[ uxIndexToNotify ];
- }
+ taskENTER_CRITICAL();
+ {
+ if( pulPreviousNotificationValue != NULL )
+ {
+ *pulPreviousNotificationValue = pxTCB->ulNotifiedValue;
+ }
- ucOriginalNotifyState = pxTCB->ucNotifyState[ uxIndexToNotify ];
+ ucOriginalNotifyState = pxTCB->ucNotifyState;
- pxTCB->ucNotifyState[ uxIndexToNotify ] = taskNOTIFICATION_RECEIVED;
+ pxTCB->ucNotifyState = taskNOTIFICATION_RECEIVED;
- switch( eAction )
- {
- case eSetBits:
- pxTCB->ulNotifiedValue[ uxIndexToNotify ] |= ulValue;
- break;
+ switch( eAction )
+ {
+ case eSetBits :
+ pxTCB->ulNotifiedValue |= ulValue;
+ break;
- case eIncrement:
- ( pxTCB->ulNotifiedValue[ uxIndexToNotify ] )++;
- break;
+ case eIncrement :
+ ( pxTCB->ulNotifiedValue )++;
+ break;
- case eSetValueWithOverwrite:
- pxTCB->ulNotifiedValue[ uxIndexToNotify ] = ulValue;
- break;
+ case eSetValueWithOverwrite :
+ pxTCB->ulNotifiedValue = ulValue;
+ break;
- case eSetValueWithoutOverwrite:
+ case eSetValueWithoutOverwrite :
+ if( ucOriginalNotifyState != taskNOTIFICATION_RECEIVED )
+ {
+ pxTCB->ulNotifiedValue = ulValue;
+ }
+ else
+ {
+ /* The value could not be written to the task. */
+ xReturn = pdFAIL;
+ }
+ break;
- if( ucOriginalNotifyState != taskNOTIFICATION_RECEIVED )
- {
- pxTCB->ulNotifiedValue[ uxIndexToNotify ] = ulValue;
- }
- else
- {
- /* The value could not be written to the task. */
- xReturn = pdFAIL;
- }
+ case eNoAction:
+ /* The task is being notified without its notify value being
+ updated. */
+ break;
- break;
+ default:
+ /* Should not get here if all enums are handled.
+ Artificially force an assert by testing a value the
+ compiler can't assume is const. */
+ configASSERT( pxTCB->ulNotifiedValue == ~0U );
- case eNoAction:
+ break;
+ }
- /* The task is being notified without its notify value being
- * updated. */
- break;
+ traceTASK_NOTIFY();
- default:
+ /* If the task is in the blocked state specifically to wait for a
+ notification then unblock it now. */
+ if( ucOriginalNotifyState == taskWAITING_NOTIFICATION )
+ {
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxTCB );
- /* Should not get here if all enums are handled.
- * Artificially force an assert by testing a value the
- * compiler can't assume is const. */
- configASSERT( xTickCount == ( TickType_t ) 0 );
+ /* The task should not have been on an event list. */
+ configASSERT( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL );
- break;
- }
+ #if( configUSE_TICKLESS_IDLE != 0 )
+ {
+ /* If a task is blocked waiting for a notification then
+ xNextTaskUnblockTime might be set to the blocked task's time
+ out time. If the task is unblocked for a reason other than
+ a timeout xNextTaskUnblockTime is normally left unchanged,
+ because it will automatically get reset to a new value when
+ the tick count equals xNextTaskUnblockTime. However if
+ tickless idling is used it might be more important to enter
+ sleep mode at the earliest possible time - so reset
+ xNextTaskUnblockTime here to ensure it is updated at the
+ earliest possible time. */
+ prvResetNextTaskUnblockTime();
+ }
+ #endif
- traceTASK_NOTIFY( uxIndexToNotify );
+ if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
+ {
+ /* The notified task has a priority above the currently
+ executing task so a yield is required. */
+ taskYIELD_IF_USING_PREEMPTION();
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ taskEXIT_CRITICAL();
- /* If the task is in the blocked state specifically to wait for a
- * notification then unblock it now. */
- if( ucOriginalNotifyState == taskWAITING_NOTIFICATION )
- {
- listREMOVE_ITEM( &( pxTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxTCB );
-
- /* The task should not have been on an event list. */
- configASSERT( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL );
-
- #if ( configUSE_TICKLESS_IDLE != 0 )
- {
- /* If a task is blocked waiting for a notification then
- * xNextTaskUnblockTime might be set to the blocked task's time
- * out time. If the task is unblocked for a reason other than
- * a timeout xNextTaskUnblockTime is normally left unchanged,
- * because it will automatically get reset to a new value when
- * the tick count equals xNextTaskUnblockTime. However if
- * tickless idling is used it might be more important to enter
- * sleep mode at the earliest possible time - so reset
- * xNextTaskUnblockTime here to ensure it is updated at the
- * earliest possible time. */
- prvResetNextTaskUnblockTime();
- }
- #endif
-
- if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- /* The notified task has a priority above the currently
- * executing task so a yield is required. */
- taskYIELD_IF_USING_PREEMPTION();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
-
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_TASK_NOTIFICATIONS */
/*-----------------------------------------------------------*/
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
+#if( configUSE_TASK_NOTIFICATIONS == 1 )
- BaseType_t xTaskGenericNotifyFromISR( TaskHandle_t xTaskToNotify,
- UBaseType_t uxIndexToNotify,
- uint32_t ulValue,
- eNotifyAction eAction,
- uint32_t * pulPreviousNotificationValue,
- BaseType_t * pxHigherPriorityTaskWoken )
- {
- TCB_t * pxTCB;
- uint8_t ucOriginalNotifyState;
- BaseType_t xReturn = pdPASS;
- UBaseType_t uxSavedInterruptStatus;
+ BaseType_t xTaskGenericNotifyFromISR( TaskHandle_t xTaskToNotify, uint32_t ulValue, eNotifyAction eAction, uint32_t *pulPreviousNotificationValue, BaseType_t *pxHigherPriorityTaskWoken )
+ {
+ TCB_t * pxTCB;
+ uint8_t ucOriginalNotifyState;
+ BaseType_t xReturn = pdPASS;
+ UBaseType_t uxSavedInterruptStatus;
- configASSERT( xTaskToNotify );
- configASSERT( uxIndexToNotify < configTASK_NOTIFICATION_ARRAY_ENTRIES );
+ configASSERT( xTaskToNotify );
- /* RTOS ports that support interrupt nesting have the concept of a
- * maximum system call (or maximum API call) interrupt priority.
- * Interrupts that are above the maximum system call priority are keep
- * permanently enabled, even when the RTOS kernel is in a critical section,
- * but cannot make any calls to FreeRTOS API functions. If configASSERT()
- * is defined in FreeRTOSConfig.h then
- * portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
- * failure if a FreeRTOS API function is called from an interrupt that has
- * been assigned a priority above the configured maximum system call
- * priority. Only FreeRTOS functions that end in FromISR can be called
- * from interrupts that have been assigned a priority at or (logically)
- * below the maximum system call interrupt priority. FreeRTOS maintains a
- * separate interrupt safe API to ensure interrupt entry is as fast and as
- * simple as possible. More information (albeit Cortex-M specific) is
- * provided on the following link:
- * https://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html */
- portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
+ /* RTOS ports that support interrupt nesting have the concept of a
+ maximum system call (or maximum API call) interrupt priority.
+ Interrupts that are above the maximum system call priority are keep
+ permanently enabled, even when the RTOS kernel is in a critical section,
+ but cannot make any calls to FreeRTOS API functions. If configASSERT()
+ is defined in FreeRTOSConfig.h then
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
+ failure if a FreeRTOS API function is called from an interrupt that has
+ been assigned a priority above the configured maximum system call
+ priority. Only FreeRTOS functions that end in FromISR can be called
+ from interrupts that have been assigned a priority at or (logically)
+ below the maximum system call interrupt priority. FreeRTOS maintains a
+ separate interrupt safe API to ensure interrupt entry is as fast and as
+ simple as possible. More information (albeit Cortex-M specific) is
+ provided on the following link:
+ http://www.freertos.org/RTOS-Cortex-M3-M4.html */
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
- pxTCB = xTaskToNotify;
+ pxTCB = xTaskToNotify;
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
- {
- if( pulPreviousNotificationValue != NULL )
- {
- *pulPreviousNotificationValue = pxTCB->ulNotifiedValue[ uxIndexToNotify ];
- }
+ uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
+ {
+ if( pulPreviousNotificationValue != NULL )
+ {
+ *pulPreviousNotificationValue = pxTCB->ulNotifiedValue;
+ }
- ucOriginalNotifyState = pxTCB->ucNotifyState[ uxIndexToNotify ];
- pxTCB->ucNotifyState[ uxIndexToNotify ] = taskNOTIFICATION_RECEIVED;
+ ucOriginalNotifyState = pxTCB->ucNotifyState;
+ pxTCB->ucNotifyState = taskNOTIFICATION_RECEIVED;
- switch( eAction )
- {
- case eSetBits:
- pxTCB->ulNotifiedValue[ uxIndexToNotify ] |= ulValue;
- break;
+ switch( eAction )
+ {
+ case eSetBits :
+ pxTCB->ulNotifiedValue |= ulValue;
+ break;
- case eIncrement:
- ( pxTCB->ulNotifiedValue[ uxIndexToNotify ] )++;
- break;
+ case eIncrement :
+ ( pxTCB->ulNotifiedValue )++;
+ break;
- case eSetValueWithOverwrite:
- pxTCB->ulNotifiedValue[ uxIndexToNotify ] = ulValue;
- break;
+ case eSetValueWithOverwrite :
+ pxTCB->ulNotifiedValue = ulValue;
+ break;
- case eSetValueWithoutOverwrite:
+ case eSetValueWithoutOverwrite :
+ if( ucOriginalNotifyState != taskNOTIFICATION_RECEIVED )
+ {
+ pxTCB->ulNotifiedValue = ulValue;
+ }
+ else
+ {
+ /* The value could not be written to the task. */
+ xReturn = pdFAIL;
+ }
+ break;
- if( ucOriginalNotifyState != taskNOTIFICATION_RECEIVED )
- {
- pxTCB->ulNotifiedValue[ uxIndexToNotify ] = ulValue;
- }
- else
- {
- /* The value could not be written to the task. */
- xReturn = pdFAIL;
- }
+ case eNoAction :
+ /* The task is being notified without its notify value being
+ updated. */
+ break;
- break;
+ default:
+ /* Should not get here if all enums are handled.
+ Artificially force an assert by testing a value the
+ compiler can't assume is const. */
+ configASSERT( pxTCB->ulNotifiedValue == ~0U );
+ break;
+ }
- case eNoAction:
+ traceTASK_NOTIFY_FROM_ISR();
- /* The task is being notified without its notify value being
- * updated. */
- break;
+ /* If the task is in the blocked state specifically to wait for a
+ notification then unblock it now. */
+ if( ucOriginalNotifyState == taskWAITING_NOTIFICATION )
+ {
+ /* The task should not have been on an event list. */
+ configASSERT( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL );
- default:
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxTCB );
+ }
+ else
+ {
+ /* The delayed and ready lists cannot be accessed, so hold
+ this task pending until the scheduler is resumed. */
+ vListInsertEnd( &( xPendingReadyList ), &( pxTCB->xEventListItem ) );
+ }
- /* Should not get here if all enums are handled.
- * Artificially force an assert by testing a value the
- * compiler can't assume is const. */
- configASSERT( xTickCount == ( TickType_t ) 0 );
- break;
- }
+ if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
+ {
+ /* The notified task has a priority above the currently
+ executing task so a yield is required. */
+ if( pxHigherPriorityTaskWoken != NULL )
+ {
+ *pxHigherPriorityTaskWoken = pdTRUE;
+ }
- traceTASK_NOTIFY_FROM_ISR( uxIndexToNotify );
+ /* Mark that a yield is pending in case the user is not
+ using the "xHigherPriorityTaskWoken" parameter to an ISR
+ safe FreeRTOS function. */
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ }
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
- /* If the task is in the blocked state specifically to wait for a
- * notification then unblock it now. */
- if( ucOriginalNotifyState == taskWAITING_NOTIFICATION )
- {
- /* The task should not have been on an event list. */
- configASSERT( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL );
-
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- listREMOVE_ITEM( &( pxTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxTCB );
- }
- else
- {
- /* The delayed and ready lists cannot be accessed, so hold
- * this task pending until the scheduler is resumed. */
- listINSERT_END( &( xPendingReadyList ), &( pxTCB->xEventListItem ) );
- }
-
- if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- /* The notified task has a priority above the currently
- * executing task so a yield is required. */
- if( pxHigherPriorityTaskWoken != NULL )
- {
- *pxHigherPriorityTaskWoken = pdTRUE;
- }
-
- /* Mark that a yield is pending in case the user is not
- * using the "xHigherPriorityTaskWoken" parameter to an ISR
- * safe FreeRTOS function. */
- xYieldPending = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- }
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
-
- return xReturn;
- }
+ return xReturn;
+ }
#endif /* configUSE_TASK_NOTIFICATIONS */
/*-----------------------------------------------------------*/
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
+#if( configUSE_TASK_NOTIFICATIONS == 1 )
- void vTaskGenericNotifyGiveFromISR( TaskHandle_t xTaskToNotify,
- UBaseType_t uxIndexToNotify,
- BaseType_t * pxHigherPriorityTaskWoken )
- {
- TCB_t * pxTCB;
- uint8_t ucOriginalNotifyState;
- UBaseType_t uxSavedInterruptStatus;
+ void vTaskNotifyGiveFromISR( TaskHandle_t xTaskToNotify, BaseType_t *pxHigherPriorityTaskWoken )
+ {
+ TCB_t * pxTCB;
+ uint8_t ucOriginalNotifyState;
+ UBaseType_t uxSavedInterruptStatus;
- configASSERT( xTaskToNotify );
- configASSERT( uxIndexToNotify < configTASK_NOTIFICATION_ARRAY_ENTRIES );
+ configASSERT( xTaskToNotify );
- /* RTOS ports that support interrupt nesting have the concept of a
- * maximum system call (or maximum API call) interrupt priority.
- * Interrupts that are above the maximum system call priority are keep
- * permanently enabled, even when the RTOS kernel is in a critical section,
- * but cannot make any calls to FreeRTOS API functions. If configASSERT()
- * is defined in FreeRTOSConfig.h then
- * portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
- * failure if a FreeRTOS API function is called from an interrupt that has
- * been assigned a priority above the configured maximum system call
- * priority. Only FreeRTOS functions that end in FromISR can be called
- * from interrupts that have been assigned a priority at or (logically)
- * below the maximum system call interrupt priority. FreeRTOS maintains a
- * separate interrupt safe API to ensure interrupt entry is as fast and as
- * simple as possible. More information (albeit Cortex-M specific) is
- * provided on the following link:
- * https://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html */
- portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
+ /* RTOS ports that support interrupt nesting have the concept of a
+ maximum system call (or maximum API call) interrupt priority.
+ Interrupts that are above the maximum system call priority are keep
+ permanently enabled, even when the RTOS kernel is in a critical section,
+ but cannot make any calls to FreeRTOS API functions. If configASSERT()
+ is defined in FreeRTOSConfig.h then
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID() will result in an assertion
+ failure if a FreeRTOS API function is called from an interrupt that has
+ been assigned a priority above the configured maximum system call
+ priority. Only FreeRTOS functions that end in FromISR can be called
+ from interrupts that have been assigned a priority at or (logically)
+ below the maximum system call interrupt priority. FreeRTOS maintains a
+ separate interrupt safe API to ensure interrupt entry is as fast and as
+ simple as possible. More information (albeit Cortex-M specific) is
+ provided on the following link:
+ http://www.freertos.org/RTOS-Cortex-M3-M4.html */
+ portASSERT_IF_INTERRUPT_PRIORITY_INVALID();
- pxTCB = xTaskToNotify;
+ pxTCB = xTaskToNotify;
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
- {
- ucOriginalNotifyState = pxTCB->ucNotifyState[ uxIndexToNotify ];
- pxTCB->ucNotifyState[ uxIndexToNotify ] = taskNOTIFICATION_RECEIVED;
+ uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
+ {
+ ucOriginalNotifyState = pxTCB->ucNotifyState;
+ pxTCB->ucNotifyState = taskNOTIFICATION_RECEIVED;
- /* 'Giving' is equivalent to incrementing a count in a counting
- * semaphore. */
- ( pxTCB->ulNotifiedValue[ uxIndexToNotify ] )++;
+ /* 'Giving' is equivalent to incrementing a count in a counting
+ semaphore. */
+ ( pxTCB->ulNotifiedValue )++;
- traceTASK_NOTIFY_GIVE_FROM_ISR( uxIndexToNotify );
+ traceTASK_NOTIFY_GIVE_FROM_ISR();
- /* If the task is in the blocked state specifically to wait for a
- * notification then unblock it now. */
- if( ucOriginalNotifyState == taskWAITING_NOTIFICATION )
- {
- /* The task should not have been on an event list. */
- configASSERT( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL );
+ /* If the task is in the blocked state specifically to wait for a
+ notification then unblock it now. */
+ if( ucOriginalNotifyState == taskWAITING_NOTIFICATION )
+ {
+ /* The task should not have been on an event list. */
+ configASSERT( listLIST_ITEM_CONTAINER( &( pxTCB->xEventListItem ) ) == NULL );
- if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
- {
- listREMOVE_ITEM( &( pxTCB->xStateListItem ) );
- prvAddTaskToReadyList( pxTCB );
- }
- else
- {
- /* The delayed and ready lists cannot be accessed, so hold
- * this task pending until the scheduler is resumed. */
- listINSERT_END( &( xPendingReadyList ), &( pxTCB->xEventListItem ) );
- }
+ if( uxSchedulerSuspended == ( UBaseType_t ) pdFALSE )
+ {
+ ( void ) uxListRemove( &( pxTCB->xStateListItem ) );
+ prvAddTaskToReadyList( pxTCB );
+ }
+ else
+ {
+ /* The delayed and ready lists cannot be accessed, so hold
+ this task pending until the scheduler is resumed. */
+ vListInsertEnd( &( xPendingReadyList ), &( pxTCB->xEventListItem ) );
+ }
- if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
- {
- /* The notified task has a priority above the currently
- * executing task so a yield is required. */
- if( pxHigherPriorityTaskWoken != NULL )
- {
- *pxHigherPriorityTaskWoken = pdTRUE;
- }
+ if( pxTCB->uxPriority > pxCurrentTCB->uxPriority )
+ {
+ /* The notified task has a priority above the currently
+ executing task so a yield is required. */
+ if( pxHigherPriorityTaskWoken != NULL )
+ {
+ *pxHigherPriorityTaskWoken = pdTRUE;
+ }
- /* Mark that a yield is pending in case the user is not
- * using the "xHigherPriorityTaskWoken" parameter in an ISR
- * safe FreeRTOS function. */
- xYieldPending = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- }
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
- }
+ /* Mark that a yield is pending in case the user is not
+ using the "xHigherPriorityTaskWoken" parameter in an ISR
+ safe FreeRTOS function. */
+ xYieldPending = pdTRUE;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ }
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
+ }
+
+#endif /* configUSE_TASK_NOTIFICATIONS */
+
+/*-----------------------------------------------------------*/
+
+#if( configUSE_TASK_NOTIFICATIONS == 1 )
+
+ BaseType_t xTaskNotifyStateClear( TaskHandle_t xTask )
+ {
+ TCB_t *pxTCB;
+ BaseType_t xReturn;
+
+ /* If null is passed in here then it is the calling task that is having
+ its notification state cleared. */
+ pxTCB = prvGetTCBFromHandle( xTask );
+
+ taskENTER_CRITICAL();
+ {
+ if( pxTCB->ucNotifyState == taskNOTIFICATION_RECEIVED )
+ {
+ pxTCB->ucNotifyState = taskNOT_WAITING_NOTIFICATION;
+ xReturn = pdPASS;
+ }
+ else
+ {
+ xReturn = pdFAIL;
+ }
+ }
+ taskEXIT_CRITICAL();
+
+ return xReturn;
+ }
#endif /* configUSE_TASK_NOTIFICATIONS */
/*-----------------------------------------------------------*/
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
-
- BaseType_t xTaskGenericNotifyStateClear( TaskHandle_t xTask,
- UBaseType_t uxIndexToClear )
- {
- TCB_t * pxTCB;
- BaseType_t xReturn;
-
- configASSERT( uxIndexToClear < configTASK_NOTIFICATION_ARRAY_ENTRIES );
-
- /* If null is passed in here then it is the calling task that is having
- * its notification state cleared. */
- pxTCB = prvGetTCBFromHandle( xTask );
-
- taskENTER_CRITICAL();
- {
- if( pxTCB->ucNotifyState[ uxIndexToClear ] == taskNOTIFICATION_RECEIVED )
- {
- pxTCB->ucNotifyState[ uxIndexToClear ] = taskNOT_WAITING_NOTIFICATION;
- xReturn = pdPASS;
- }
- else
- {
- xReturn = pdFAIL;
- }
- }
- taskEXIT_CRITICAL();
-
- return xReturn;
- }
-
-#endif /* configUSE_TASK_NOTIFICATIONS */
-/*-----------------------------------------------------------*/
-
-#if ( configUSE_TASK_NOTIFICATIONS == 1 )
-
- uint32_t ulTaskGenericNotifyValueClear( TaskHandle_t xTask,
- UBaseType_t uxIndexToClear,
- uint32_t ulBitsToClear )
- {
- TCB_t * pxTCB;
- uint32_t ulReturn;
-
- /* If null is passed in here then it is the calling task that is having
- * its notification state cleared. */
- pxTCB = prvGetTCBFromHandle( xTask );
-
- taskENTER_CRITICAL();
- {
- /* Return the notification as it was before the bits were cleared,
- * then clear the bit mask. */
- ulReturn = pxTCB->ulNotifiedValue[ uxIndexToClear ];
- pxTCB->ulNotifiedValue[ uxIndexToClear ] &= ~ulBitsToClear;
- }
- taskEXIT_CRITICAL();
-
- return ulReturn;
- }
-
-#endif /* configUSE_TASK_NOTIFICATIONS */
-/*-----------------------------------------------------------*/
-
-#if ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( INCLUDE_xTaskGetIdleTaskHandle == 1 ) )
-
- configRUN_TIME_COUNTER_TYPE ulTaskGetIdleRunTimeCounter( void )
- {
- return xIdleTaskHandle->ulRunTimeCounter;
- }
-
+#if( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( INCLUDE_xTaskGetIdleTaskHandle == 1 ) )
+ TickType_t xTaskGetIdleRunTimeCounter( void )
+ {
+ return xIdleTaskHandle->ulRunTimeCounter;
+ }
#endif
/*-----------------------------------------------------------*/
-#if ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( INCLUDE_xTaskGetIdleTaskHandle == 1 ) )
-
- configRUN_TIME_COUNTER_TYPE ulTaskGetIdleRunTimePercent( void )
- {
- configRUN_TIME_COUNTER_TYPE ulTotalTime, ulReturn;
-
- ulTotalTime = portGET_RUN_TIME_COUNTER_VALUE();
-
- /* For percentage calculations. */
- ulTotalTime /= ( configRUN_TIME_COUNTER_TYPE ) 100;
-
- /* Avoid divide by zero errors. */
- if( ulTotalTime > ( configRUN_TIME_COUNTER_TYPE ) 0 )
- {
- ulReturn = xIdleTaskHandle->ulRunTimeCounter / ulTotalTime;
- }
- else
- {
- ulReturn = 0;
- }
-
- return ulReturn;
- }
-
-#endif /* if ( ( configGENERATE_RUN_TIME_STATS == 1 ) && ( INCLUDE_xTaskGetIdleTaskHandle == 1 ) ) */
-/*-----------------------------------------------------------*/
-
-static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait,
- const BaseType_t xCanBlockIndefinitely )
+static void prvAddCurrentTaskToDelayedList( TickType_t xTicksToWait, const BaseType_t xCanBlockIndefinitely )
{
- TickType_t xTimeToWake;
- const TickType_t xConstTickCount = xTickCount;
+TickType_t xTimeToWake;
+const TickType_t xConstTickCount = xTickCount;
- #if ( INCLUDE_xTaskAbortDelay == 1 )
- {
- /* About to enter a delayed list, so ensure the ucDelayAborted flag is
- * reset to pdFALSE so it can be detected as having been set to pdTRUE
- * when the task leaves the Blocked state. */
- pxCurrentTCB->ucDelayAborted = pdFALSE;
- }
- #endif
+ #if( INCLUDE_xTaskAbortDelay == 1 )
+ {
+ /* About to enter a delayed list, so ensure the ucDelayAborted flag is
+ reset to pdFALSE so it can be detected as having been set to pdTRUE
+ when the task leaves the Blocked state. */
+ pxCurrentTCB->ucDelayAborted = pdFALSE;
+ }
+ #endif
- /* Remove the task from the ready list before adding it to the blocked list
- * as the same list item is used for both lists. */
- if( uxListRemove( &( pxCurrentTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
- {
- /* The current task must be in a ready list, so there is no need to
- * check, and the port reset macro can be called directly. */
- portRESET_READY_PRIORITY( pxCurrentTCB->uxPriority, uxTopReadyPriority ); /*lint !e931 pxCurrentTCB cannot change as it is the calling task. pxCurrentTCB->uxPriority and uxTopReadyPriority cannot change as called with scheduler suspended or in a critical section. */
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
+ /* Remove the task from the ready list before adding it to the blocked list
+ as the same list item is used for both lists. */
+ if( uxListRemove( &( pxCurrentTCB->xStateListItem ) ) == ( UBaseType_t ) 0 )
+ {
+ /* The current task must be in a ready list, so there is no need to
+ check, and the port reset macro can be called directly. */
+ portRESET_READY_PRIORITY( pxCurrentTCB->uxPriority, uxTopReadyPriority ); /*lint !e931 pxCurrentTCB cannot change as it is the calling task. pxCurrentTCB->uxPriority and uxTopReadyPriority cannot change as called with scheduler suspended or in a critical section. */
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
- #if ( INCLUDE_vTaskSuspend == 1 )
- {
- if( ( xTicksToWait == portMAX_DELAY ) && ( xCanBlockIndefinitely != pdFALSE ) )
- {
- /* Add the task to the suspended task list instead of a delayed task
- * list to ensure it is not woken by a timing event. It will block
- * indefinitely. */
- listINSERT_END( &xSuspendedTaskList, &( pxCurrentTCB->xStateListItem ) );
- }
- else
- {
- /* Calculate the time at which the task should be woken if the event
- * does not occur. This may overflow but this doesn't matter, the
- * kernel will manage it correctly. */
- xTimeToWake = xConstTickCount + xTicksToWait;
+ #if ( INCLUDE_vTaskSuspend == 1 )
+ {
+ if( ( xTicksToWait == portMAX_DELAY ) && ( xCanBlockIndefinitely != pdFALSE ) )
+ {
+ /* Add the task to the suspended task list instead of a delayed task
+ list to ensure it is not woken by a timing event. It will block
+ indefinitely. */
+ vListInsertEnd( &xSuspendedTaskList, &( pxCurrentTCB->xStateListItem ) );
+ }
+ else
+ {
+ /* Calculate the time at which the task should be woken if the event
+ does not occur. This may overflow but this doesn't matter, the
+ kernel will manage it correctly. */
+ xTimeToWake = xConstTickCount + xTicksToWait;
- /* The list item will be inserted in wake time order. */
- listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xStateListItem ), xTimeToWake );
+ /* The list item will be inserted in wake time order. */
+ listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xStateListItem ), xTimeToWake );
- if( xTimeToWake < xConstTickCount )
- {
- /* Wake time has overflowed. Place this item in the overflow
- * list. */
- vListInsert( pxOverflowDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
- }
- else
- {
- /* The wake time has not overflowed, so the current block list
- * is used. */
- vListInsert( pxDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
+ if( xTimeToWake < xConstTickCount )
+ {
+ /* Wake time has overflowed. Place this item in the overflow
+ list. */
+ vListInsert( pxOverflowDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
+ }
+ else
+ {
+ /* The wake time has not overflowed, so the current block list
+ is used. */
+ vListInsert( pxDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
- /* If the task entering the blocked state was placed at the
- * head of the list of blocked tasks then xNextTaskUnblockTime
- * needs to be updated too. */
- if( xTimeToWake < xNextTaskUnblockTime )
- {
- xNextTaskUnblockTime = xTimeToWake;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- }
- }
- #else /* INCLUDE_vTaskSuspend */
- {
- /* Calculate the time at which the task should be woken if the event
- * does not occur. This may overflow but this doesn't matter, the kernel
- * will manage it correctly. */
- xTimeToWake = xConstTickCount + xTicksToWait;
+ /* If the task entering the blocked state was placed at the
+ head of the list of blocked tasks then xNextTaskUnblockTime
+ needs to be updated too. */
+ if( xTimeToWake < xNextTaskUnblockTime )
+ {
+ xNextTaskUnblockTime = xTimeToWake;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
+ }
+ }
+ #else /* INCLUDE_vTaskSuspend */
+ {
+ /* Calculate the time at which the task should be woken if the event
+ does not occur. This may overflow but this doesn't matter, the kernel
+ will manage it correctly. */
+ xTimeToWake = xConstTickCount + xTicksToWait;
- /* The list item will be inserted in wake time order. */
- listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xStateListItem ), xTimeToWake );
+ /* The list item will be inserted in wake time order. */
+ listSET_LIST_ITEM_VALUE( &( pxCurrentTCB->xStateListItem ), xTimeToWake );
- if( xTimeToWake < xConstTickCount )
- {
- /* Wake time has overflowed. Place this item in the overflow list. */
- vListInsert( pxOverflowDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
- }
- else
- {
- /* The wake time has not overflowed, so the current block list is used. */
- vListInsert( pxDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
+ if( xTimeToWake < xConstTickCount )
+ {
+ /* Wake time has overflowed. Place this item in the overflow list. */
+ vListInsert( pxOverflowDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
+ }
+ else
+ {
+ /* The wake time has not overflowed, so the current block list is used. */
+ vListInsert( pxDelayedTaskList, &( pxCurrentTCB->xStateListItem ) );
- /* If the task entering the blocked state was placed at the head of the
- * list of blocked tasks then xNextTaskUnblockTime needs to be updated
- * too. */
- if( xTimeToWake < xNextTaskUnblockTime )
- {
- xNextTaskUnblockTime = xTimeToWake;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
+ /* If the task entering the blocked state was placed at the head of the
+ list of blocked tasks then xNextTaskUnblockTime needs to be updated
+ too. */
+ if( xTimeToWake < xNextTaskUnblockTime )
+ {
+ xNextTaskUnblockTime = xTimeToWake;
+ }
+ else
+ {
+ mtCOVERAGE_TEST_MARKER();
+ }
+ }
- /* Avoid compiler warning when INCLUDE_vTaskSuspend is not 1. */
- ( void ) xCanBlockIndefinitely;
- }
- #endif /* INCLUDE_vTaskSuspend */
+ /* Avoid compiler warning when INCLUDE_vTaskSuspend is not 1. */
+ ( void ) xCanBlockIndefinitely;
+ }
+ #endif /* INCLUDE_vTaskSuspend */
}
/* Code below here allows additional code to be inserted into this source file,
- * especially where access to file scope functions and data is needed (for example
- * when performing module tests). */
+especially where access to file scope functions and data is needed (for example
+when performing module tests). */
#ifdef FREERTOS_MODULE_TEST
- #include "tasks_test_access_functions.h"
+ #include "tasks_test_access_functions.h"
#endif
-#if ( configINCLUDE_FREERTOS_TASK_C_ADDITIONS_H == 1 )
+#if( configINCLUDE_FREERTOS_TASK_C_ADDITIONS_H == 1 )
- #include "freertos_tasks_c_additions.h"
+ #include "freertos_tasks_c_additions.h"
- #ifdef FREERTOS_TASKS_C_ADDITIONS_INIT
- static void freertos_tasks_c_additions_init( void )
- {
- FREERTOS_TASKS_C_ADDITIONS_INIT();
- }
- #endif
+ #ifdef FREERTOS_TASKS_C_ADDITIONS_INIT
+ static void freertos_tasks_c_additions_init( void )
+ {
+ FREERTOS_TASKS_C_ADDITIONS_INIT();
+ }
+ #endif
-#endif /* if ( configINCLUDE_FREERTOS_TASK_C_ADDITIONS_H == 1 ) */
+#endif
+
+#if ENABLE_KASAN
+void kasan_enable_current(void)
+{
+ if (pxCurrentTCB)
+ pxCurrentTCB->kasan_depth--;
+}
+
+void kasan_disable_current(void)
+{
+ if (pxCurrentTCB)
+ pxCurrentTCB->kasan_depth++;
+}
+
+int kasan_current_enabled(void)
+{
+ if (pxCurrentTCB)
+ return (pxCurrentTCB->kasan_depth<=0);
+ return 0;
+}
+#endif
/* Add include implement source code which depend on the inner elements */
#include "aml_tasks_ext.c"