rtems/src/msgqbroadcast.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSImplClassicMessage
0007  *
0008  * @brief This source file contains the implementation of
0009  *   rtems_message_queue_broadcast().
0010  */
0011
0012 /*
0013  *  COPYRIGHT (c) 1989-2014.
0014  *  On-Line Applications Research Corporation (OAR).
0015  *
0016  * Redistribution and use in source and binary forms, with or without
0017  * modification, are permitted provided that the following conditions
0018  * are met:
0019  * 1. Redistributions of source code must retain the above copyright
0020  *    notice, this list of conditions and the following disclaimer.
0021  * 2. Redistributions in binary form must reproduce the above copyright
0022  *    notice, this list of conditions and the following disclaimer in the
0023  *    documentation and/or other materials provided with the distribution.
0024  *
0025  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0026  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0027  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0028  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0029  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0030  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0031  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0032  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0033  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0034  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0035  * POSSIBILITY OF SUCH DAMAGE.
0036  */
0037
0038 #ifdef HAVE_CONFIG_H
0039 #include "config.h"
0040 #endif
0041
0042 #include <rtems/rtems/messageimpl.h>
0043 #include <rtems/rtems/statusimpl.h>
0044
0045 rtems_status_code rtems_message_queue_broadcast(
0046   rtems_id    id,
0047   const void *buffer,
0048   size_t      size,
0049   uint32_t   *count
0050 )
0051 {
0052   Message_queue_Control *the_message_queue;
0053   Thread_queue_Context   queue_context;
0054   Status_Control         status;
0055
0056   if ( buffer == NULL ) {
0057     return RTEMS_INVALID_ADDRESS;
0058   }
0059
0060   if ( count == NULL ) {
0061     return RTEMS_INVALID_ADDRESS;
0062   }
0063
0064   the_message_queue = _Message_queue_Get( id, &queue_context );
0065
0066   if ( the_message_queue == NULL ) {
0067 #if defined(RTEMS_MULTIPROCESSING)
0068     return _Message_queue_MP_Broadcast( id, buffer, size, count );
0069 #else
0070     return RTEMS_INVALID_ID;
0071 #endif
0072   }
0073
0074   _Thread_queue_Context_set_MP_callout(
0075     &queue_context,
0076     _Message_queue_Core_message_queue_mp_support
0077   );
0078   status = _CORE_message_queue_Broadcast(
0079     &the_message_queue->message_queue,
0080     buffer,
0081     size,
0082     count,
0083     &queue_context
0084   );
0085   return _Status_Get( status );
0086 }