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/*
* Copyright (c) 2012, 2013 ARM Ltd
* 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.
* 3. The name of the company may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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 "local-malloc.h"
struct mallinfo
mallinfo(void)
{
char *sbrk_now;
chunk_t *pf;
size_t free_size = 0;
size_t total_size;
size_t ordblks = 0;
struct mallinfo current_mallinfo;
memset(¤t_mallinfo, 0, sizeof(current_mallinfo));
MALLOC_LOCK;
if (__malloc_sbrk_start == NULL)
total_size = 0;
else {
sbrk_now = __malloc_sbrk_top;
if (sbrk_now == NULL)
total_size = (size_t)-1;
else
total_size = (size_t)(sbrk_now - __malloc_sbrk_start);
}
for (pf = __malloc_free_list; pf; pf = pf->next) {
ordblks++;
free_size += _size(pf);
}
current_mallinfo.ordblks = ordblks;
current_mallinfo.arena = total_size;
current_mallinfo.fordblks = free_size;
current_mallinfo.uordblks = total_size - free_size;
MALLOC_UNLOCK;
return current_mallinfo;
}
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