afd7f2d86a
During build phase ACL doing quite a lot of memory allocations for relatively small temporary structures. In theory each of such allocation can fail, so we need to handle all these possible failures. That adds a lot of extra checks and makes the code harder to read and follow. To simplify the process, made changes to handle all such failures in one place. Note, that all that memory for temporary structures is freed at one go at the end of build phase. Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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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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*
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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _TB_MEM_H_
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#define _TB_MEM_H_
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/**
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* @file
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*
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* RTE ACL temporary (build phase) memory management.
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* Contains structures and functions to manage temporary (used by build only)
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* memory. Memory allocated in large blocks to speed 'free' when trie is
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* destructed (finish of build phase).
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rte_acl_osdep.h>
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#include <setjmp.h>
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struct tb_mem_block {
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struct tb_mem_block *next;
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struct tb_mem_pool *pool;
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size_t size;
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uint8_t *mem;
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};
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struct tb_mem_pool {
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struct tb_mem_block *block;
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size_t alignment;
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size_t min_alloc;
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size_t alloc;
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/* jump target in case of memory allocation failure. */
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sigjmp_buf fail;
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};
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void *tb_alloc(struct tb_mem_pool *pool, size_t size);
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void tb_free_pool(struct tb_mem_pool *pool);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TB_MEM_H_ */
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