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74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <errno.h>
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#include <stdlib.h>
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#include "rtems-debugger-block.h"
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int
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rtems_debugger_block_create(rtems_debugger_block* block,
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size_t step,
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size_t size)
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{
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int r = 0;
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block->level = 0;
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block->step = step;
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block->count = step;
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block->size = size;
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block->block = calloc(block->count, block->size);
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if (block->block == NULL)
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errno = ENOMEM;
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return r;
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}
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int
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rtems_debugger_block_destroy(rtems_debugger_block* block)
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{
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free(block->block);
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block->block = NULL;
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block->level = 0;
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block->count = 0;
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block->size = 0;
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return 0;
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}
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int
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rtems_debugger_block_resize(rtems_debugger_block* block)
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{
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int r = 0;
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if (block->level >= block->count) {
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block->count += block->step;
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block->block = realloc(block->block, block->count * block->size);
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if (block->block == NULL) {
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block->level = 0;
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block->count = 0;
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errno = ENOMEM;
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r = -1;
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}
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}
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return r;
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}
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