shared: Add timespec_is_zero helper
Add a helper function to check if a struct timespec is zero. This helper
will be used in the upcoming commits to transition the Weston codebase
to struct timespec.
Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/tests/timespec-test.c b/tests/timespec-test.c
index a503911..4e83605 100644
--- a/tests/timespec-test.c
+++ b/tests/timespec-test.c
@@ -164,3 +164,14 @@
b.tv_nsec = 1000000L;
ZUC_ASSERT_EQ((998 * 1000) + 1, timespec_sub_to_msec(&a, &b));
}
+
+ZUC_TEST(timespec_test, timespec_is_zero)
+{
+ struct timespec zero = { 0 };
+ struct timespec non_zero_sec = { .tv_sec = 1, .tv_nsec = 0 };
+ struct timespec non_zero_nsec = { .tv_sec = 0, .tv_nsec = 1 };
+
+ ZUC_ASSERT_TRUE(timespec_is_zero(&zero));
+ ZUC_ASSERT_FALSE(timespec_is_zero(&non_zero_nsec));
+ ZUC_ASSERT_FALSE(timespec_is_zero(&non_zero_sec));
+}