83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/*
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Copyright (c) 2006-2020 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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tre-mem.h - TRE memory allocator interface
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This software is released under a BSD-style license.
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See the file LICENSE for details and copyright.
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*/
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#ifndef _HAWK_TRE_MEM_H_
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#define _HAWK_TRE_MEM_H_
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#include "hawk-prv.h"
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#define TRE_MEM_BLOCK_SIZE 1024
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typedef struct hawk_tre_mem_list {
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void *data;
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struct hawk_tre_mem_list *next;
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} hawk_tre_mem_list_t;
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typedef struct hawk_tre_mem_struct {
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hawk_gem_t* gem;
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hawk_tre_mem_list_t *blocks;
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hawk_tre_mem_list_t *current;
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char *ptr;
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size_t n;
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int failed;
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void **provided;
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} *hawk_tre_mem_t;
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#if defined(__cplusplus)
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extern "C" {
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#endif
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hawk_tre_mem_t hawk_tre_mem_new_impl(hawk_gem_t* gem, int provided, void *provided_block);
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void *hawk_tre_mem_alloc_impl(hawk_tre_mem_t mem, int provided, void *provided_block,
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int zero, size_t size);
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/* Returns a new memory allocator or NULL if out of memory. */
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#define hawk_tre_mem_new(gem) hawk_tre_mem_new_impl(gem, 0, NULL)
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/* Allocates a block of `size' bytes from `mem'. Returns a pointer to the
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allocated block or NULL if an underlying malloc() failed. */
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#define hawk_tre_mem_alloc(mem, size) hawk_tre_mem_alloc_impl(mem, 0, NULL, 0, size)
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/* Allocates a block of `size' bytes from `mem'. Returns a pointer to the
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allocated block or NULL if an underlying malloc() failed. The memory
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is set to zero. */
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#define hawk_tre_mem_calloc(mem, size) hawk_tre_mem_alloc_impl(mem, 0, NULL, 1, size)
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/* Frees the memory allocator and all memory allocated with it. */
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void hawk_tre_mem_destroy(hawk_tre_mem_t mem);
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#if defined(__cplusplus)
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}
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#endif
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#endif
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