| 0,0 → 1,91 |
|---|
| /************************************************************************** |
| * |
| * Copyright 2008 VMware, Inc. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| /** |
| * @file |
| * Simple cache. |
| * |
| * @author Jose Fonseca <jfonseca@vmware.com> |
| */ |
| |
| #ifndef U_CACHE_H_ |
| #define U_CACHE_H_ |
| |
| |
| #include "pipe/p_compiler.h" |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| |
| /** |
| * Least Recently Used (LRU) cache. |
| */ |
| struct util_cache; |
| |
| |
| /** |
| * Create a cache. |
| * |
| * @param hash hash function |
| * @param compare should return 0 for two equal keys |
| * @param destroy destruction callback (optional) |
| * @param size maximum number of entries |
| */ |
| struct util_cache * |
| util_cache_create(uint32_t (*hash)(const void *key), |
| int (*compare)(const void *key1, const void *key2), |
| void (*destroy)(void *key, void *value), |
| uint32_t size); |
| |
| void |
| util_cache_set(struct util_cache *cache, |
| void *key, |
| void *value); |
| |
| void * |
| util_cache_get(struct util_cache *cache, |
| const void *key); |
| |
| void |
| util_cache_clear(struct util_cache *cache); |
| |
| void |
| util_cache_destroy(struct util_cache *cache); |
| |
| void |
| util_cache_remove(struct util_cache *cache, |
| const void *key); |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* U_CACHE_H_ */ |