1 /** 2 * @file 3 * Heap API 4 */ 5 6 /* 7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without modification, 11 * are permitted provided that the following conditions are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright notice, 14 * this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 30 * OF SUCH DAMAGE. 31 * 32 * This file is part of the lwIP TCP/IP stack. 33 * 34 * Author: Adam Dunkels <adam@sics.se> 35 * 36 */ 37 #ifndef LWIP_HDR_MEM_H 38 #define LWIP_HDR_MEM_H 39 40 #include "lwip/opt.h" 41 42 #ifdef __cplusplus 43 extern "C" { 44 #endif 45 46 #if MEM_LIBC_MALLOC 47 48 #include "lwip/arch.h" 49 50 typedef size_t mem_size_t; 51 #define MEM_SIZE_F SZT_F 52 53 #elif MEM_USE_POOLS 54 55 typedef u16_t mem_size_t; 56 #define MEM_SIZE_F U16_F 57 58 #else 59 60 /* MEM_SIZE would have to be aligned, but using 64000 here instead of 61 * 65535 leaves some room for alignment... 62 */ 63 #if MEM_SIZE > 64000L 64 typedef u32_t mem_size_t; 65 #define MEM_SIZE_F U32_F 66 #else 67 typedef u16_t mem_size_t; 68 #define MEM_SIZE_F U16_F 69 #endif /* MEM_SIZE > 64000 */ 70 #endif 71 72 void mem_init(void); 73 void *mem_trim(void *mem, mem_size_t size); 74 void *mem_malloc(mem_size_t size); 75 void *mem_calloc(mem_size_t count, mem_size_t size); 76 void mem_free(void *mem); 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* LWIP_HDR_MEM_H */ 83