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Diffstat (limited to 'lib/librte_acl/tb_mem.h')
| -rw-r--r-- | lib/librte_acl/tb_mem.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/lib/librte_acl/tb_mem.h b/lib/librte_acl/tb_mem.h new file mode 100644 index 00000000..ca7af966 --- /dev/null +++ b/lib/librte_acl/tb_mem.h @@ -0,0 +1,76 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 THE COPYRIGHT + * OWNER OR CONTRIBUTORS 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. + */ + +#ifndef _TB_MEM_H_ +#define _TB_MEM_H_ + +/** + * @file + * + * RTE ACL temporary (build phase) memory management. + * Contains structures and functions to manage temporary (used by build only) + * memory. Memory allocated in large blocks to speed 'free' when trie is + * destructed (finish of build phase). + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <rte_acl_osdep.h> +#include <setjmp.h> + +struct tb_mem_block { + struct tb_mem_block *next; + struct tb_mem_pool *pool; + size_t size; + uint8_t *mem; +}; + +struct tb_mem_pool { + struct tb_mem_block *block; + size_t alignment; + size_t min_alloc; + size_t alloc; + /* jump target in case of memory allocation failure. */ + sigjmp_buf fail; +}; + +void *tb_alloc(struct tb_mem_pool *pool, size_t size); +void tb_free_pool(struct tb_mem_pool *pool); + +#ifdef __cplusplus +} +#endif + +#endif /* _TB_MEM_H_ */ |