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Diffstat (limited to '')
-rw-r--r-- | cpukit/score/src/threadqextract.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/cpukit/score/src/threadqextract.c b/cpukit/score/src/threadqextract.c new file mode 100644 index 0000000000..32985a0f3a --- /dev/null +++ b/cpukit/score/src/threadqextract.c @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file + * + * @ingroup RTEMSScoreThreadQueue + * + * @brief This source file contains the implementation of + * _Thread_queue_Extract(). + */ + +/* + * COPYRIGHT (c) 1989-2014. + * On-Line Applications Research Corporation (OAR). + * + * Copyright (C) 2015, 2016 embedded brains GmbH & Co. KG + * + * 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/score/threadqimpl.h> +#include <rtems/score/threadimpl.h> + +void _Thread_queue_Extract( Thread_Control *the_thread ) +{ + Thread_queue_Context queue_context; + Thread_queue_Queue *queue; + + _Thread_queue_Context_initialize( &queue_context ); + _Thread_queue_Context_clear_priority_updates( &queue_context ); + _Thread_Wait_acquire( the_thread, &queue_context ); + + queue = the_thread->Wait.queue; + + if ( queue != NULL ) { + _Thread_Wait_remove_request( the_thread, &queue_context.Lock_context ); + _Thread_queue_Context_set_MP_callout( + &queue_context, + _Thread_queue_MP_callout_do_nothing + ); +#if defined(RTEMS_MULTIPROCESSING) + _Thread_queue_MP_set_callout( the_thread, &queue_context ); +#endif + ( *the_thread->Wait.operations->extract )( + queue, + the_thread, + &queue_context + ); + _Thread_queue_Resume( queue, the_thread, &queue_context ); + } else { + _Thread_Wait_release( the_thread, &queue_context ); + } +} |