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/*
* The MIT License (MIT)
*
* Copyright © 2015-2016 Franklin "Snaipe" Mathieu <http://snai.pe/>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "alloc.h"
#include "err.h"
static bxf_arena inheritable_arena;
void cri_alloc_init(void)
{
int rc = bxf_arena_init(0, BXF_ARENA_RESIZE | BXF_ARENA_IDENTITY
| BXF_ARENA_KEEPMAPPED, &inheritable_arena);
if (rc < 0)
cr_panic("Could not initialize inheritable arena: %s", strerror(-rc));
}
void cri_alloc_term(void)
{
bxf_arena_term(&inheritable_arena);
}
bxf_arena cri_alloc_getarena(void)
{
return inheritable_arena;
}
void *cr_malloc(size_t size)
{
bxf_ptr ptr = bxf_arena_alloc(&inheritable_arena, size);
if (ptr < 0) {
errno = -ptr;
return NULL;
}
return bxf_arena_ptr(inheritable_arena, ptr);
}
void *cr_calloc(size_t nmemb, size_t size)
{
void *ptr = cr_malloc(size * nmemb);
if (ptr)
memset(ptr, 0, size * nmemb);
return ptr;
}
void *cr_realloc(void *ptr, size_t size)
{
bxf_ptr p = (intptr_t) ptr - (intptr_t) inheritable_arena;
bxf_ptr newptr = bxf_arena_realloc(&inheritable_arena, p, size);
if (newptr < 0) {
errno = -newptr;
return NULL;
}
return bxf_arena_ptr(inheritable_arena, newptr);
}
void cr_free(void *ptr)
{
bxf_ptr p = (intptr_t) ptr - (intptr_t) inheritable_arena;
(void) bxf_arena_free(&inheritable_arena, p);
}
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