[154] | 1 | /* |
---|
| 2 | * hashmap.h |
---|
| 3 | * Copyright (c) 2009 Vedant Kumar |
---|
| 4 | * |
---|
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
---|
| 6 | * of this software and associated documentation files (the "Software"), to deal |
---|
| 7 | * in the Software without restriction, including without limitation the rights |
---|
| 8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
---|
| 9 | * copies of the Software, and to permit persons to whom the Software is |
---|
| 10 | * furnished to do so, subject to the following conditions: |
---|
| 11 | * |
---|
| 12 | * The above copyright notice and this permission notice shall be included in |
---|
| 13 | * all copies or substantial portions of the Software. |
---|
| 14 | * |
---|
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
---|
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
---|
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
---|
| 18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
---|
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
---|
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
---|
| 21 | * THE SOFTWARE. |
---|
| 22 | */ |
---|
| 23 | |
---|
| 24 | #pragma once |
---|
| 25 | |
---|
| 26 | #define HMAP_PRESET_SIZE 2 << 6 // use a power of 2 for faster array access |
---|
| 27 | #define HMAP_GROWTH_RATE 2 |
---|
| 28 | /* #define HMAP_MAKE_HASHFN */ |
---|
| 29 | /* #define HMAP_THREAD_SAFE // build with -lrt */ |
---|
| 30 | /* #define HMAP_DESTRUCTORS */ |
---|
| 31 | |
---|
| 32 | #ifdef HMAP_THREAD_SAFE |
---|
| 33 | #include <semaphore.h> |
---|
| 34 | #endif |
---|
| 35 | |
---|
| 36 | #include <stdint.h> |
---|
| 37 | #include <stdlib.h> |
---|
| 38 | #include <stdbool.h> |
---|
| 39 | |
---|
| 40 | typedef void* key; |
---|
| 41 | typedef void* val; |
---|
| 42 | typedef struct key_val_map key_val_map; |
---|
| 43 | typedef struct hashmap hashmap; |
---|
| 44 | |
---|
| 45 | hashmap* mk_hmap(uint32_t (*hash_fn)(key), |
---|
| 46 | bool (*eq_fn)(key, key) |
---|
| 47 | #ifdef HMAP_DESTRUCTORS |
---|
| 48 | , void (*del_fn)(val) |
---|
| 49 | #endif |
---|
| 50 | ); |
---|
| 51 | |
---|
| 52 | void free_hmap(hashmap*); |
---|
| 53 | |
---|
| 54 | bool __hmap_add(hashmap* hmap, key in, val out); |
---|
| 55 | #define hmap_add(hmap, in, out) __hmap_add(hmap, (key) in, (val) out) |
---|
| 56 | |
---|
| 57 | val __hmap_get(hashmap* hmap, key in); |
---|
| 58 | #define hmap_get(hmap, obj) __hmap_get(hmap, (val) obj) |
---|