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/**
* @file
*
* @brief Remove a Named Semaphore
* @ingroup POSIX_SEMAPHORE
*/
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <semaphore.h>
#include <rtems/posix/semaphoreimpl.h>
int sem_unlink(
const char *name
)
{
POSIX_Semaphore_Control *the_semaphore;
Objects_Get_by_name_error error;
Thread_queue_Context queue_context;
_Objects_Allocator_lock();
the_semaphore = _POSIX_Semaphore_Get_by_name( name, NULL, &error );
if ( the_semaphore == NULL ) {
_Objects_Allocator_unlock();
rtems_set_errno_and_return_minus_one( _POSIX_Get_by_name_error( error ) );
}
_POSIX_Semaphore_Namespace_remove( the_semaphore );
_ISR_lock_ISR_disable( &queue_context.Lock_context );
_CORE_semaphore_Acquire_critical( &the_semaphore->Semaphore, &queue_context );
the_semaphore->linked = false;
_POSIX_Semaphore_Delete( the_semaphore, &queue_context );
_Objects_Allocator_unlock();
return 0;
}
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