snapraid/tommyds/tommyarrayblkof.c
2019-01-07 14:06:15 +01:00

84 lines
2.7 KiB
C

/*
* Copyright (c) 2013, Andrea Mazzoleni. 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 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.
*/
#include "tommyarrayblkof.h"
/******************************************************************************/
/* array */
void tommy_arrayblkof_init(tommy_arrayblkof* array, tommy_size_t element_size)
{
tommy_array_init(&array->block);
array->element_size = element_size;
array->count = 0;
}
void tommy_arrayblkof_done(tommy_arrayblkof* array)
{
tommy_count_t i;
for (i = 0; i < tommy_array_size(&array->block); ++i)
tommy_free(tommy_array_get(&array->block, i));
tommy_array_done(&array->block);
}
void tommy_arrayblkof_grow(tommy_arrayblkof* array, tommy_count_t count)
{
tommy_count_t block_max;
tommy_count_t block_mac;
if (array->count >= count)
return;
array->count = count;
block_max = (count + TOMMY_ARRAYBLKOF_SIZE - 1) / TOMMY_ARRAYBLKOF_SIZE;
block_mac = tommy_array_size(&array->block);
if (block_mac < block_max) {
/* grow the block array */
tommy_array_grow(&array->block, block_max);
/* allocate new blocks */
while (block_mac < block_max) {
void** ptr = tommy_cast(void**, tommy_calloc(TOMMY_ARRAYBLKOF_SIZE, array->element_size));
/* set the new block */
tommy_array_set(&array->block, block_mac, ptr);
++block_mac;
}
}
}
tommy_size_t tommy_arrayblkof_memory_usage(tommy_arrayblkof* array)
{
return tommy_array_memory_usage(&array->block) + tommy_array_size(&array->block) * TOMMY_ARRAYBLKOF_SIZE * array->element_size;
}