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sem_wait: Use set_errno() and get_errno(). Direce access inside the OS may not be supported in the future.

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This commit is contained in:
Gregory Nutt 2014-07-31 15:01:37 -06:00
parent 487a672d76
commit 19abe47a6f
1 changed files with 3 additions and 3 deletions
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6
sched/sem_wait.c
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@ -106,7 +106,7 @@ int sem_wait(FAR sem_t *sem)
/* Assume any errors reported are due to invalid arguments. */ /* Assume any errors reported are due to invalid arguments. */
errno = EINVAL; set_errno(EINVAL);
if (sem) if (sem)
{ {
@ -168,7 +168,7 @@ int sem_wait(FAR sem_t *sem)
#endif #endif
/* Add the TCB to the prioritized semaphore wait queue */ /* Add the TCB to the prioritized semaphore wait queue */
errno = 0; set_errno(0);
up_block_task(rtcb, TSTATE_WAIT_SEM); up_block_task(rtcb, TSTATE_WAIT_SEM);
/* When we resume at this point, either (1) the semaphore has been /* When we resume at this point, either (1) the semaphore has been
@ -191,7 +191,7 @@ int sem_wait(FAR sem_t *sem)
* race conditions. * race conditions.
*/ */
if (errno != EINTR && errno != ETIMEDOUT) if (get_errno() != EINTR && get_errno() != ETIMEDOUT)
{ {
/* Not awakened by a signal or a timeout... We hold the semaphore */ /* Not awakened by a signal or a timeout... We hold the semaphore */