1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN 24 * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 /* 39 * btstack_memory_pool.h 40 * 41 * @Brief Fixed-size block allocation 42 * 43 * @Assumption block_size >= sizeof(void *) 44 * @Assumption size of storage >= count * block_size 45 * 46 * @Note minimal implementation, no error checking/handling 47 */ 48 49 #ifndef btstack_memory_pool_H 50 #define btstack_memory_pool_H 51 52 #if defined __cplusplus 53 extern "C" { 54 #endif 55 56 typedef void * btstack_memory_pool_t; 57 58 // initialize memory pool with with given storage, block size and count 59 void btstack_memory_pool_create(btstack_memory_pool_t *pool, void * storage, int count, int block_size); 60 61 // get free block from pool, @return NULL or pointer to block 62 void * btstack_memory_pool_get(btstack_memory_pool_t *pool); 63 64 // return previously reserved block to memory pool 65 void btstack_memory_pool_free(btstack_memory_pool_t *pool, void * block); 66 67 #if defined __cplusplus 68 } 69 #endif 70 71 #endif // btstack_memory_pool_H 72