diff options
Diffstat (limited to 'pr/src/pthreads/ptsynch.c')
| -rw-r--r-- | pr/src/pthreads/ptsynch.c | 52 |
1 files changed, 47 insertions, 5 deletions
diff --git a/pr/src/pthreads/ptsynch.c b/pr/src/pthreads/ptsynch.c index b3ff68da..5cdd0fd3 100644 --- a/pr/src/pthreads/ptsynch.c +++ b/pr/src/pthreads/ptsynch.c @@ -248,7 +248,7 @@ static PRIntn pt_TimedWait( /* - * Notifies just get posted to the to the protecting mutex. The + * Notifies just get posted to the protecting mutex. The * actual notification is done when the lock is released so that * MP systems don't contend for a lock that they can't have. */ @@ -649,6 +649,14 @@ PR_IMPLEMENT(PRSemaphore*) PR_NewSem(PRUintn value) return NULL; } +/* + * Define the interprocess named semaphore functions. + * There are three implementations: + * 1. POSIX semaphore based; + * 2. System V semaphore based; + * 3. unsupported (fails with PR_NOT_IMPLEMENTED_ERROR). + */ + #ifdef _PR_HAVE_POSIX_SEMAPHORES #include <fcntl.h> @@ -750,9 +758,7 @@ PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name) return PR_SUCCESS; } -#endif /* _PR_HAVE_POSIX_SEMAPHORES */ - -#ifdef _PR_HAVE_SYSV_SEMAPHORES +#elif defined(_PR_HAVE_SYSV_SEMAPHORES) #include <fcntl.h> #include <sys/sem.h> @@ -961,7 +967,43 @@ PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name) return PR_SUCCESS; } -#endif /* _PR_HAVE_SYSV_SEMAPHORES */ +#else /* neither POSIX nor System V semaphores are available */ + +PR_IMPLEMENT(PRSem *) PR_OpenSemaphore( + const char *name, + PRIntn flags, + PRIntn mode, + PRUintn value) +{ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return NULL; +} + +PR_IMPLEMENT(PRStatus) PR_WaitSemaphore(PRSem *sem) +{ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +PR_IMPLEMENT(PRStatus) PR_PostSemaphore(PRSem *sem) +{ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +PR_IMPLEMENT(PRStatus) PR_CloseSemaphore(PRSem *sem) +{ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name) +{ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +#endif /* end of interprocess named semaphore functions */ /**************************************************************/ /**************************************************************/ |