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Diffstat (limited to 'examples/redis-unstable/deps/hiredis/dict.h')
| -rw-r--r-- | examples/redis-unstable/deps/hiredis/dict.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/examples/redis-unstable/deps/hiredis/dict.h b/examples/redis-unstable/deps/hiredis/dict.h new file mode 100644 index 0000000..6ad0acd --- /dev/null +++ b/examples/redis-unstable/deps/hiredis/dict.h | |||
| @@ -0,0 +1,125 @@ | |||
| 1 | /* Hash table implementation. | ||
| 2 | * | ||
| 3 | * This file implements in memory hash tables with insert/del/replace/find/ | ||
| 4 | * get-random-element operations. Hash tables will auto resize if needed | ||
| 5 | * tables of power of two in size are used, collisions are handled by | ||
| 6 | * chaining. See the source code for more information... :) | ||
| 7 | * | ||
| 8 | * Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com> | ||
| 9 | * All rights reserved. | ||
| 10 | * | ||
| 11 | * Redistribution and use in source and binary forms, with or without | ||
| 12 | * modification, are permitted provided that the following conditions are met: | ||
| 13 | * | ||
| 14 | * * Redistributions of source code must retain the above copyright notice, | ||
| 15 | * this list of conditions and the following disclaimer. | ||
| 16 | * * Redistributions in binary form must reproduce the above copyright | ||
| 17 | * notice, this list of conditions and the following disclaimer in the | ||
| 18 | * documentation and/or other materials provided with the distribution. | ||
| 19 | * * Neither the name of Redis nor the names of its contributors may be used | ||
| 20 | * to endorse or promote products derived from this software without | ||
| 21 | * specific prior written permission. | ||
| 22 | * | ||
| 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| 24 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
| 27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| 28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| 29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| 30 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| 31 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 32 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| 33 | * POSSIBILITY OF SUCH DAMAGE. | ||
| 34 | */ | ||
| 35 | |||
| 36 | #ifndef __DICT_H | ||
| 37 | #define __DICT_H | ||
| 38 | |||
| 39 | #define DICT_OK 0 | ||
| 40 | #define DICT_ERR 1 | ||
| 41 | |||
| 42 | /* Unused arguments generate annoying warnings... */ | ||
| 43 | #define DICT_NOTUSED(V) ((void) V) | ||
| 44 | |||
| 45 | typedef struct dictEntry { | ||
| 46 | void *key; | ||
| 47 | void *val; | ||
| 48 | struct dictEntry *next; | ||
| 49 | } dictEntry; | ||
| 50 | |||
| 51 | typedef struct dictType { | ||
| 52 | unsigned int (*hashFunction)(const void *key); | ||
| 53 | void *(*keyDup)(void *privdata, const void *key); | ||
| 54 | void *(*valDup)(void *privdata, const void *obj); | ||
| 55 | int (*keyCompare)(void *privdata, const void *key1, const void *key2); | ||
| 56 | void (*keyDestructor)(void *privdata, void *key); | ||
| 57 | void (*valDestructor)(void *privdata, void *obj); | ||
| 58 | } dictType; | ||
| 59 | |||
| 60 | typedef struct dict { | ||
| 61 | dictEntry **table; | ||
| 62 | dictType *type; | ||
| 63 | unsigned long size; | ||
| 64 | unsigned long sizemask; | ||
| 65 | unsigned long used; | ||
| 66 | void *privdata; | ||
| 67 | } dict; | ||
| 68 | |||
| 69 | typedef struct dictIterator { | ||
| 70 | dict *ht; | ||
| 71 | int index; | ||
| 72 | dictEntry *entry, *nextEntry; | ||
| 73 | } dictIterator; | ||
| 74 | |||
| 75 | /* This is the initial size of every hash table */ | ||
| 76 | #define DICT_HT_INITIAL_SIZE 4 | ||
| 77 | |||
| 78 | /* ------------------------------- Macros ------------------------------------*/ | ||
| 79 | #define dictFreeEntryVal(ht, entry) \ | ||
| 80 | if ((ht)->type->valDestructor) \ | ||
| 81 | (ht)->type->valDestructor((ht)->privdata, (entry)->val) | ||
| 82 | |||
| 83 | #define dictSetHashVal(ht, entry, _val_) do { \ | ||
| 84 | if ((ht)->type->valDup) \ | ||
| 85 | entry->val = (ht)->type->valDup((ht)->privdata, _val_); \ | ||
| 86 | else \ | ||
| 87 | entry->val = (_val_); \ | ||
| 88 | } while(0) | ||
| 89 | |||
| 90 | #define dictFreeEntryKey(ht, entry) \ | ||
| 91 | if ((ht)->type->keyDestructor) \ | ||
| 92 | (ht)->type->keyDestructor((ht)->privdata, (entry)->key) | ||
| 93 | |||
| 94 | #define dictSetHashKey(ht, entry, _key_) do { \ | ||
| 95 | if ((ht)->type->keyDup) \ | ||
| 96 | entry->key = (ht)->type->keyDup((ht)->privdata, _key_); \ | ||
| 97 | else \ | ||
| 98 | entry->key = (_key_); \ | ||
| 99 | } while(0) | ||
| 100 | |||
| 101 | #define dictCompareHashKeys(ht, key1, key2) \ | ||
| 102 | (((ht)->type->keyCompare) ? \ | ||
| 103 | (ht)->type->keyCompare((ht)->privdata, key1, key2) : \ | ||
| 104 | (key1) == (key2)) | ||
| 105 | |||
| 106 | #define dictHashKey(ht, key) (ht)->type->hashFunction(key) | ||
| 107 | |||
| 108 | #define dictGetEntryKey(he) ((he)->key) | ||
| 109 | #define dictGetEntryVal(he) ((he)->val) | ||
| 110 | #define dictSlots(ht) ((ht)->size) | ||
| 111 | #define dictSize(ht) ((ht)->used) | ||
| 112 | |||
| 113 | /* API */ | ||
| 114 | static unsigned int dictGenHashFunction(const unsigned char *buf, int len); | ||
| 115 | static dict *dictCreate(dictType *type, void *privDataPtr); | ||
| 116 | static int dictExpand(dict *ht, unsigned long size); | ||
| 117 | static int dictAdd(dict *ht, void *key, void *val); | ||
| 118 | static int dictReplace(dict *ht, void *key, void *val); | ||
| 119 | static int dictDelete(dict *ht, const void *key); | ||
| 120 | static void dictRelease(dict *ht); | ||
| 121 | static dictEntry * dictFind(dict *ht, const void *key); | ||
| 122 | static void dictInitIterator(dictIterator *iter, dict *ht); | ||
| 123 | static dictEntry *dictNext(dictIterator *iter); | ||
| 124 | |||
| 125 | #endif /* __DICT_H */ | ||
