diff options
Diffstat (limited to 'cpukit/score/src/threadqfirst.c')
| -rw-r--r-- | cpukit/score/src/threadqfirst.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/cpukit/score/src/threadqfirst.c b/cpukit/score/src/threadqfirst.c index 9908523298..f374382f3e 100644 --- a/cpukit/score/src/threadqfirst.c +++ b/cpukit/score/src/threadqfirst.c @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * @@ -11,9 +13,26 @@ * 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. + * 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 @@ -27,11 +46,19 @@ Thread_Control *_Thread_queue_First( const Thread_queue_Operations *operations ) { + Thread_queue_Heads *heads; Thread_Control *the_thread; Thread_queue_Context queue_context; _Thread_queue_Acquire( the_thread_queue, &queue_context ); - the_thread = _Thread_queue_First_locked( the_thread_queue, operations ); + heads = the_thread_queue->Queue.heads; + + if ( heads != NULL ) { + the_thread = ( *operations->first )( heads ); + } else { + the_thread = NULL; + } + _Thread_queue_Release( the_thread_queue, &queue_context ); return the_thread; |