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/*
* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>.
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*/
#include <errno.h>
#include <stdlib.h>
#include "rtems-debugger-block.h"
int
rtems_debugger_block_create(rtems_debugger_block* block,
size_t step,
size_t size)
{
int r = 0;
block->level = 0;
block->step = step;
block->count = step;
block->size = size;
block->block = calloc(block->count, block->size);
if (block->block == NULL)
errno = ENOMEM;
return r;
}
int
rtems_debugger_block_destroy(rtems_debugger_block* block)
{
free(block->block);
block->block = NULL;
block->level = 0;
block->count = 0;
block->size = 0;
return 0;
}
int
rtems_debugger_block_resize(rtems_debugger_block* block)
{
int r = 0;
if (block->level >= block->count) {
block->count += block->step;
block->block = realloc(block->block, block->count * block->size);
if (block->block == NULL) {
block->level = 0;
block->count = 0;
errno = ENOMEM;
r = -1;
}
}
return r;
}
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