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sem: remove limitation of irq context when do sem_trywait

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Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd
2021-09-27 15:52:03 +08:00
committed by Xiang Xiao
parent 17b67093cb
commit 7c547b3ebd
2 changed files with 6 additions and 0 deletions
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mm/mm_heap/mm_sem.c
+4
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@@ -80,9 +80,13 @@ bool mm_takesemaphore(FAR struct mm_heap_s *heap)
if (up_interrupt_context()) if (up_interrupt_context())
{ {
#ifdef CONFIG_DEBUG_MM
return _SEM_TRYWAIT(&heap->mm_semaphore) >= 0;
#else
/* Can't take semaphore in the interrupt handler */ /* Can't take semaphore in the interrupt handler */
return false; return false;
#endif
} }
else else
#endif #endif
sched/semaphore/sem_trywait.c
+2
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@@ -69,9 +69,11 @@ int nxsem_trywait(FAR sem_t *sem)
irqstate_t flags; irqstate_t flags;
int ret; int ret;
#ifndef CONFIG_DEBUG_MM
/* This API should not be called from interrupt handlers */ /* This API should not be called from interrupt handlers */
DEBUGASSERT(sem != NULL && up_interrupt_context() == false); DEBUGASSERT(sem != NULL && up_interrupt_context() == false);
#endif
if (sem != NULL) if (sem != NULL)
{ {