git.joshuawise.com / netwatch.git / blame
| Commit | Line | Data |
|---|---|---|
| 6e6d4a8b JP |
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 | #ifndef __LWIP_MEM_H__ | |
| 33 | #define __LWIP_MEM_H__ | |
| 34 | ||
| 35 | #include "lwip/opt.h" | |
| 36 | ||
| 37 | #ifdef __cplusplus | |
| 38 | extern "C" { | |
| 39 | #endif | |
| 40 | ||
| 41 | #if MEM_LIBC_MALLOC | |
| 42 | ||
| 43 | #include <stddef.h> /* for size_t */ | |
| 44 | ||
| 45 | typedef size_t mem_size_t; | |
| 46 | ||
| 47 | /* aliases for C library malloc() */ | |
| 48 | #define mem_init() | |
| 49 | /* in case C library malloc() needs extra protection, | |
| 50 | * allow these defines to be overridden. | |
| 51 | */ | |
| 52 | #ifndef mem_free | |
| 53 | #define mem_free(x) free(x) | |
| 54 | #endif | |
| 55 | #ifndef mem_malloc | |
| 56 | #define mem_malloc(x) malloc(x) | |
| 57 | #endif | |
| 58 | #ifndef mem_calloc | |
| 59 | #define mem_calloc(x, y) calloc(x, y) | |
| 60 | #endif | |
| 61 | #ifndef mem_realloc | |
| 62 | #define mem_realloc(x, size) (x) | |
| 63 | #endif | |
| 64 | #else /* MEM_LIBC_MALLOC */ | |
| 65 | ||
| 66 | /* MEM_SIZE would have to be aligned, but using 64000 here instead of | |
| 67 | * 65535 leaves some room for alignment... | |
| 68 | */ | |
| 69 | #if MEM_SIZE > 64000l | |
| 70 | typedef u32_t mem_size_t; | |
| 71 | #else | |
| 72 | typedef u16_t mem_size_t; | |
| 73 | #endif /* MEM_SIZE > 64000 */ | |
| 74 | ||
| 75 | #if MEM_USE_POOLS | |
| 76 | /** mem_init is not used when using pools instead of a heap */ | |
| 77 | #define mem_init() | |
| 78 | /** mem_realloc is not used when using pools instead of a heap: | |
| 79 | we can't free part of a pool element and don't want to copy the rest */ | |
| 80 | #define mem_realloc(mem, size) (mem) | |
| 81 | #else /* MEM_USE_POOLS */ | |
| 82 | /* lwIP alternative malloc */ | |
| 83 | void mem_init(void); | |
| 84 | void *mem_realloc(void *mem, mem_size_t size); | |
| 85 | #endif /* MEM_USE_POOLS */ | |
| 86 | void *mem_malloc(mem_size_t size); | |
| 87 | void *mem_calloc(mem_size_t count, mem_size_t size); | |
| 88 | void mem_free(void *mem); | |
| 89 | #endif /* MEM_LIBC_MALLOC */ | |
| 90 | ||
| 91 | #ifndef LWIP_MEM_ALIGN_SIZE | |
| 92 | #define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1)) | |
| 93 | #endif | |
| 94 | ||
| 95 | #ifndef LWIP_MEM_ALIGN | |
| 96 | #define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1))) | |
| 97 | #endif | |
| 98 | ||
| 99 | #ifdef __cplusplus | |
| 100 | } | |
| 101 | #endif | |
| 102 | ||
| 103 | #endif /* __LWIP_MEM_H__ */ |