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Add sem_timedwait()

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3798 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2011-07-19 13:40:15 +00:00
parent aa31582311
commit 2928511cce
6 changed files with 646 additions and 284 deletions
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include/semaphore.h
+5
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@@ -92,6 +92,9 @@ typedef struct sem_s sem_t;
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/* Forward references needed by some prototypes */
struct timespec; /* Defined in time.h */
/* Counting Semaphore Interfaces (based on POSIX APIs) */
@@ -101,6 +104,8 @@ EXTERN FAR sem_t *sem_open(FAR const char *name, int oflag, ...);
EXTERN int sem_close(FAR sem_t *sem);
EXTERN int sem_unlink(FAR const char *name);
EXTERN int sem_wait(FAR sem_t *sem);
EXTERN int sem_timedwait(FAR sem_t *sem,
FAR const struct timespec *abstime);
EXTERN int sem_trywait(FAR sem_t *sem);
EXTERN int sem_post(FAR sem_t *sem);
EXTERN int sem_getvalue(FAR sem_t *sem, FAR int *sval);