/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicSemaphore
*
* @brief This source file contains the implementation of
* rtems_semaphore_delete().
*/
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/semimpl.h>
#include <rtems/rtems/statusimpl.h>
rtems_status_code rtems_semaphore_delete(
rtems_id id
)
{
Semaphore_Control *the_semaphore;
Thread_queue_Context queue_context;
uintptr_t flags;
Semaphore_Variant variant;
Status_Control status;
_Objects_Allocator_lock();
the_semaphore = _Semaphore_Get( id, &queue_context );
if ( the_semaphore == NULL ) {
_Objects_Allocator_unlock();
#if defined(RTEMS_MULTIPROCESSING)
if ( _Semaphore_MP_Is_remote( id ) ) {
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
}
#endif
return RTEMS_INVALID_ID;
}
_Thread_queue_Acquire_critical(
&the_semaphore->Core_control.Wait_queue,
&queue_context
);
flags = _Semaphore_Get_flags( the_semaphore );
variant = _Semaphore_Get_variant( flags );
switch ( variant ) {
case SEMAPHORE_VARIANT_MUTEX_INHERIT_PRIORITY:
case SEMAPHORE_VARIANT_MUTEX_PRIORITY_CEILING:
case SEMAPHORE_VARIANT_MUTEX_NO_PROTOCOL:
if (
_CORE_mutex_Is_locked(
&the_semaphore->Core_control.Mutex.Recursive.Mutex
)
) {
status = STATUS_RESOURCE_IN_USE;
} else {
status = STATUS_SUCCESSFUL;
}
break;
#if defined(RTEMS_SMP)
case SEMAPHORE_VARIANT_MRSP:
status = _MRSP_Can_destroy( &the_semaphore->Core_control.MRSP );
break;
#endif
default:
_Assert(
variant == SEMAPHORE_VARIANT_SIMPLE_BINARY
|| variant == SEMAPHORE_VARIANT_COUNTING
);
status = STATUS_SUCCESSFUL;
break;
}
if ( status != STATUS_SUCCESSFUL ) {
_Thread_queue_Release(
&the_semaphore->Core_control.Wait_queue,
&queue_context
);
_Objects_Allocator_unlock();
return _Status_Get( status );
}
_Objects_Close( &_Semaphore_Information, &the_semaphore->Object );
switch ( variant ) {
#if defined(RTEMS_SMP)
case SEMAPHORE_VARIANT_MRSP:
_MRSP_Destroy( &the_semaphore->Core_control.MRSP, &queue_context );
break;
#endif
default:
_Assert(
variant == SEMAPHORE_VARIANT_MUTEX_INHERIT_PRIORITY
|| variant == SEMAPHORE_VARIANT_MUTEX_PRIORITY_CEILING
|| variant == SEMAPHORE_VARIANT_MUTEX_NO_PROTOCOL
|| variant == SEMAPHORE_VARIANT_SIMPLE_BINARY
|| variant == SEMAPHORE_VARIANT_COUNTING
);
_Thread_queue_Flush_critical(
&the_semaphore->Core_control.Wait_queue.Queue,
_Semaphore_Get_operations( flags ),
_Thread_queue_Flush_status_object_was_deleted,
&queue_context
);
_Thread_queue_Destroy( &the_semaphore->Core_control.Wait_queue );
break;
}
#if defined(RTEMS_MULTIPROCESSING)
if ( _Semaphore_Is_global( flags ) ) {
_Objects_MP_Close( &_Semaphore_Information, id );
_Semaphore_MP_Send_process_packet(
SEMAPHORE_MP_ANNOUNCE_DELETE,
id,
0, /* Not used */
0 /* Not used */
);
}
#endif
_Semaphore_Free( the_semaphore );
_Objects_Allocator_unlock();
return RTEMS_SUCCESSFUL;
}