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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-12-10 10:41:48 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-02-12 09:08:37 +0100 |
commit | 24851567c38f573e9176529e9ca431fbf80c6cef (patch) | |
tree | bd75506122c9a310228d1c58fba7544a5e05dd65 /cpukit/score/src/objectallocateunlimited.c | |
parent | score: Add _Objects_Free_objects_block() (diff) | |
download | rtems-24851567c38f573e9176529e9ca431fbf80c6cef.tar.bz2 |
score: Split up objects allocation
Split up the different objects allocation methods into separate
functions. This helps to avoid a dependency on the workspace in case no
objects or a static set of objects is configured.
Change license to BSD-2-Clause according to file histories.
Update #3053.
Update #3835.
Diffstat (limited to 'cpukit/score/src/objectallocateunlimited.c')
-rw-r--r-- | cpukit/score/src/objectallocateunlimited.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/cpukit/score/src/objectallocateunlimited.c b/cpukit/score/src/objectallocateunlimited.c new file mode 100644 index 0000000000..92727e1411 --- /dev/null +++ b/cpukit/score/src/objectallocateunlimited.c @@ -0,0 +1,79 @@ +/** + * @file + * + * @ingroup RTEMSScoreObject + */ + +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (C) 1989, 2007 On-Line Applications Research Corporation (OAR) + * + * 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. + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/score/objectdata.h> +#include <rtems/score/objectimpl.h> + +Objects_Control *_Objects_Allocate_unlimited( Objects_Information *information ) +{ + Objects_Control *the_object; + + _Assert( _Objects_Is_auto_extend( information ) ); + + /* + * OK. The manager should be initialized and configured to have objects. + * With any luck, it is safe to attempt to allocate an object. + */ + the_object = _Objects_Get_inactive( information ); + + /* + * If the list is empty then we are out of objects and need to + * extend information base. + */ + + if ( the_object == NULL ) { + _Objects_Extend_information( information ); + the_object = _Objects_Get_inactive( information ); + } + + if ( the_object != NULL ) { + Objects_Maximum objects_per_block; + Objects_Maximum block; + + objects_per_block = information->objects_per_block; + block = _Objects_Get_index( the_object->id ) - OBJECTS_INDEX_MINIMUM; + + if ( block > objects_per_block ) { + block /= objects_per_block; + + information->inactive_per_block[ block ]--; + information->inactive--; + } + } + + return the_object; +} |