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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-09-12 08:09:16 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-10-05 14:29:01 +0200 |
commit | c090db7405b72ce6d0b726c0a39fb1c1aebab7ea (patch) | |
tree | 099a887f445115e9b40d25cd6a2b2b11908d347d /cpukit/posix/src/seminit.c | |
parent | posix: Optimize pthread_once_t (diff) | |
download | rtems-c090db7405b72ce6d0b726c0a39fb1c1aebab7ea.tar.bz2 |
posix: Implement self-contained POSIX semaphores
For semaphore object pointer and object validation see
POSIX_SEMAPHORE_VALIDATE_OBJECT().
Destruction or close of a busy semaphore returns an error status. The
object is not flushed.
POSIX semaphores are now available in all configurations and no longer
depend on --enable-posix.
Update #2514.
Update #3116.
Diffstat (limited to 'cpukit/posix/src/seminit.c')
-rw-r--r-- | cpukit/posix/src/seminit.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/cpukit/posix/src/seminit.c b/cpukit/posix/src/seminit.c index cf06f6ce41..65104ad2c7 100644 --- a/cpukit/posix/src/seminit.c +++ b/cpukit/posix/src/seminit.c @@ -18,17 +18,11 @@ #include "config.h" #endif -#include <stdarg.h> +#include <rtems/posix/semaphoreimpl.h> -#include <errno.h> -#include <fcntl.h> -#include <pthread.h> -#include <semaphore.h> #include <limits.h> -#include <rtems/system.h> -#include <rtems/posix/semaphoreimpl.h> -#include <rtems/seterr.h> +RTEMS_STATIC_ASSERT(NULL == SEM_FAILED, sem_failed); /* * 11.2.1 Initialize an Unnamed Semaphore, P1003.1b-1993, p.219 @@ -40,9 +34,6 @@ int sem_init( unsigned int value ) { - int status; - POSIX_Semaphore_Control *the_semaphore; - if ( sem == NULL ) { rtems_set_errno_and_return_minus_one( EINVAL ); } @@ -51,17 +42,6 @@ int sem_init( rtems_set_errno_and_return_minus_one( EINVAL ); } - _Objects_Allocator_lock(); - status = _POSIX_Semaphore_Create_support( - NULL, - 0, - value, - &the_semaphore - ); - _Objects_Allocator_unlock(); - - if ( status != -1 ) - *sem = the_semaphore->Object.id; - - return status; + _POSIX_Semaphore_Initialize( sem, NULL, value ); + return 0; } |