1/* 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 * 29 * Author: Adam Dunkels <adam@sics.se> 30 * 31 */ 32 33#ifndef __LWIP_MEMP_H__ 34#define __LWIP_MEMP_H__ 35 36#include "lwip/opt.h" 37 38#ifdef __cplusplus 39extern "C" { 40#endif 41 42/* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */ 43typedef enum { 44#define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name, 45#include "lwip/memp_std.h" 46 MEMP_MAX 47} memp_t; 48 49#if MEM_USE_POOLS 50/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */ 51typedef enum { 52 /* Get the first (via: 53 MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/ 54 MEMP_POOL_HELPER_FIRST = ((u8_t) 55#define LWIP_MEMPOOL(name,num,size,desc) 56#define LWIP_MALLOC_MEMPOOL_START 1 57#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0 58#define LWIP_MALLOC_MEMPOOL_END 59#include "lwip/memp_std.h" 60 ) , 61 /* Get the last (via: 62 MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */ 63 MEMP_POOL_HELPER_LAST = ((u8_t) 64#define LWIP_MEMPOOL(name,num,size,desc) 65#define LWIP_MALLOC_MEMPOOL_START 66#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size * 67#define LWIP_MALLOC_MEMPOOL_END 1 68#include "lwip/memp_std.h" 69 ) 70} memp_pool_helper_t; 71 72/* The actual start and stop values are here (cast them over) 73 We use this helper type and these defines so we can avoid using const memp_t values */ 74#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST) 75#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST) 76#endif /* MEM_USE_POOLS */ 77 78#if MEMP_MEM_MALLOC || MEM_USE_POOLS 79extern const u16_t memp_sizes[MEMP_MAX]; 80#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */ 81 82#if MEMP_MEM_MALLOC 83 84#include "mem.h" 85 86#define memp_init() 87#define memp_malloc(type) mem_malloc(memp_sizes[type]) 88#define memp_free(type, mem) mem_free(mem) 89 90#else /* MEMP_MEM_MALLOC */ 91 92#if MEM_USE_POOLS 93/** This structure is used to save the pool one element came from. */ 94struct memp_malloc_helper 95{ 96 memp_t poolnr; 97}; 98#endif /* MEM_USE_POOLS */ 99 100void memp_init(void); 101 102#if MEMP_OVERFLOW_CHECK 103void *memp_malloc_fn(memp_t type, const char* file, const int line); 104#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__) 105#else 106void *memp_malloc(memp_t type); 107#endif 108void memp_free(memp_t type, void *mem); 109 110#endif /* MEMP_MEM_MALLOC */ 111 112#ifdef __cplusplus 113} 114#endif 115 116#endif /* __LWIP_MEMP_H__ */ 117