1 /************************************************************************** 2 * 3 * Copyright 2008 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /** 29 * General purpose hash table. 30 * 31 * @author Jos Fonseca <jfonseca (at) vmware.com> 32 */ 33 34 #ifndef U_HASH_TABLE_H_ 35 #define U_HASH_TABLE_H_ 36 37 #ifdef HAVE_CONFIG_H 38 #include "config.h" 39 #endif 40 41 #include "libdrm_macros.h" 42 43 /** 44 * Generic purpose hash table. 45 */ 46 struct util_hash_table; 47 48 /** 49 * Create an hash table. 50 * 51 * @param hash hash function 52 * @param compare should return 0 for two equal keys. 53 */ 54 drm_private struct util_hash_table * 55 util_hash_table_create(unsigned (*hash)(void *key), 56 int (*compare)(void *key1, void *key2)); 57 58 drm_private void 59 util_hash_table_set(struct util_hash_table *ht, void *key, void *value); 60 61 drm_private void *util_hash_table_get(struct util_hash_table *ht, void *key); 62 63 drm_private void util_hash_table_remove(struct util_hash_table *ht, void *key); 64 65 drm_private void util_hash_table_clear(struct util_hash_table *ht); 66 67 drm_private void util_hash_table_foreach(struct util_hash_table *ht, 68 void (*callback)(void *key, void *value, void *data), 69 void *data); 70 71 drm_private void util_hash_table_destroy(struct util_hash_table *ht); 72 73 #endif /* U_HASH_TABLE_H_ */ 74
