comparison: src/ucx/cx/mempool.h
src/ucx/cx/mempool.h
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 /** | |
| 29 * \file mempool.h | |
| 30 * \brief Interface for memory pool implementations. | |
| 31 * \author Mike Becker | |
| 32 * \author Olaf Wintermann | |
| 33 * \version 3.0 | |
| 34 * \copyright 2-Clause BSD License | |
| 35 */ | |
| 36 | |
| 37 #ifndef UCX_MEMPOOL_H | |
| 38 #define UCX_MEMPOOL_H | |
| 39 | |
| 40 #include "allocator.h" | |
| 41 | |
| 42 #ifdef __cplusplus | |
| 43 extern "C" { | |
| 44 #endif | |
| 45 | |
| 46 /** | |
| 47 * Memory pool class type. | |
| 48 */ | |
| 49 typedef struct cx_mempool_class_s cx_mempool_class; | |
| 50 | |
| 51 /** | |
| 52 * The basic structure of a memory pool. | |
| 53 * Should be the first member of an actual memory pool implementation. | |
| 54 */ | |
| 55 struct cx_mempool_s { | |
| 56 /** | |
| 57 * The pool class definition. | |
| 58 */ | |
| 59 cx_mempool_class *cl; | |
| 60 /** | |
| 61 * The provided allocator. | |
| 62 */ | |
| 63 CxAllocator const *allocator; | |
| 64 }; | |
| 65 | |
| 66 /** | |
| 67 * Common type for all memory pool implementations. | |
| 68 */ | |
| 69 typedef struct cx_mempool_s CxMempool; | |
| 70 | |
| 71 /** | |
| 72 * The class definition for a memory pool. | |
| 73 */ | |
| 74 struct cx_mempool_class_s { | |
| 75 /** Member function for destroying the pool. */ | |
| 76 __attribute__((__nonnull__)) | |
| 77 void (*destroy)(CxMempool *pool); | |
| 78 | |
| 79 /** Member function for setting a destructor. */ | |
| 80 __attribute__((__nonnull__)) | |
| 81 void (*set_destructor)( | |
| 82 CxMempool *pool, | |
| 83 void *memory, | |
| 84 cx_destructor_func fnc | |
| 85 ); | |
| 86 }; | |
| 87 | |
| 88 | |
| 89 /** | |
| 90 * Destroys a memory pool including their contents. | |
| 91 * | |
| 92 * @param pool the memory pool to destroy | |
| 93 */ | |
| 94 __attribute__((__nonnull__)) | |
| 95 static inline void cxMempoolDestroy(CxMempool *pool) { | |
| 96 pool->cl->destroy(pool); | |
| 97 } | |
| 98 | |
| 99 /** | |
| 100 * Sets a destructor function for an allocated memory object. | |
| 101 * | |
| 102 * If the memory is not managed by the pool, the behavior is undefined. | |
| 103 * | |
| 104 * @param pool the pool | |
| 105 * @param memory the objected allocated in the pool | |
| 106 * @param fnc the destructor function | |
| 107 */ | |
| 108 __attribute__((__nonnull__)) | |
| 109 static inline void cxMempoolSetDestructor( | |
| 110 CxMempool *pool, | |
| 111 void *memory, | |
| 112 cx_destructor_func fnc | |
| 113 ) { | |
| 114 pool->cl->set_destructor(pool, memory, fnc); | |
| 115 } | |
| 116 | |
| 117 #ifdef __cplusplus | |
| 118 } // extern "C" | |
| 119 #endif | |
| 120 | |
| 121 #endif // UCX_MEMPOOL_H |
