rtems/src/barrierwait.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSImplClassicBarrier
0007  *
0008  * @brief This source file contains the implementation of
0009  *   rtems_barrier_wait().
0010  */
0011
0012 /*
0013  *  COPYRIGHT (c) 1989-2007.
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/barrierimpl.h>
0043 #include <rtems/rtems/statusimpl.h>
0044
0045 THREAD_QUEUE_OBJECT_ASSERT(
0046   Barrier_Control,
0047   Barrier.Wait_queue,
0048   BARRIER_CONTROL
0049 );
0050
0051 rtems_status_code rtems_barrier_wait(
0052   rtems_id        id,
0053   rtems_interval  timeout
0054 )
0055 {
0056   Barrier_Control      *the_barrier;
0057   Thread_queue_Context  queue_context;
0058   Status_Control        status;
0059
0060   the_barrier = _Barrier_Get( id, &queue_context );
0061
0062   if ( the_barrier == NULL ) {
0063     return RTEMS_INVALID_ID;
0064   }
0065
0066   _Thread_queue_Context_set_enqueue_timeout_ticks( &queue_context, timeout );
0067   status = _CORE_barrier_Seize(
0068     &the_barrier->Barrier,
0069     _Thread_Executing,
0070     true,
0071     &queue_context
0072   );
0073   return _Status_Get( status );
0074 }