ceph/src/seastar/dpdk/lib/librte_acl/tb_mem.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #ifndef _TB_MEM_H_
   6 #define _TB_MEM_H_
   7
   8 /**
   9  * @file
  10  *
  11  * RTE ACL temporary (build phase) memory management.
  12  * Contains structures and functions to manage temporary (used by build only)
  13  * memory. Memory allocated in large blocks to speed 'free' when trie is
  14  * destructed (finish of build phase).
  15  */
  16
  17 #ifdef __cplusplus
  18 extern "C" {
  19 #endif
  20
  21 #include <rte_acl_osdep.h>
  22 #include <setjmp.h>
  23
  24 struct tb_mem_block {
  25         struct tb_mem_block *next;
  26         struct tb_mem_pool  *pool;
  27         size_t               size;
  28         uint8_t             *mem;
  29 };
  30
  31 struct tb_mem_pool {
  32         struct tb_mem_block *block;
  33         size_t               alignment;
  34         size_t               min_alloc;
  35         size_t               alloc;
  36         /* jump target in case of memory allocation failure. */
  37         sigjmp_buf           fail;
  38 };
  39
  40 void *tb_alloc(struct tb_mem_pool *pool, size_t size);
  41 void tb_free_pool(struct tb_mem_pool *pool);
  42
  43 #ifdef __cplusplus
  44 }
  45 #endif
  46
  47 #endif /* _TB_MEM_H_ */