score/src/threadallocateunlimited.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSScoreThread
0007  *
0008  * @brief This source file contains the implementation of
0009  *   _Thread_Extend_information().
0010  */
0011
0012 /*
0013  * Copyright (C) 2019, 2020 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifdef HAVE_CONFIG_H
0038 #include "config.h"
0039 #endif
0040
0041 #include <rtems/score/thread.h>
0042 #include <rtems/score/freechainimpl.h>
0043 #include <rtems/score/objectimpl.h>
0044 #include <rtems/score/wkspace.h>
0045
0046 static void _Thread_Extend_information( Objects_Information *base )
0047 {
0048   Thread_Information *information;
0049   Objects_Maximum     block;
0050
0051   information = (Thread_Information *) base;
0052   block = _Objects_Extend_information( &information->Objects );
0053
0054   if ( block > 0 ) {
0055     void *new_heads;
0056
0057     new_heads = _Freechain_Extend(
0058       &information->Thread_queue_heads.Free,
0059       _Workspace_Allocate,
0060       _Objects_Extend_size( &information->Objects ),
0061       _Thread_queue_Heads_size
0062     );
0063
0064     if ( new_heads == NULL ) {
0065       _Objects_Free_objects_block( &information->Objects, block );
0066     }
0067   }
0068 }
0069
0070 Objects_Control *_Thread_Allocate_unlimited( Objects_Information *information )
0071 {
0072   return _Objects_Allocate_with_extend(
0073     information,
0074     _Thread_Extend_information
0075   );
0076 }