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