Marco Zecchini
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Example_RTOS
Rtos API example
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mem.h
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00001 /** 00002 * @file 00003 * Heap API 00004 */ 00005 00006 /* 00007 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00008 * All rights reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without modification, 00011 * are permitted provided that the following conditions are met: 00012 * 00013 * 1. Redistributions of source code must retain the above copyright notice, 00014 * this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright notice, 00016 * this list of conditions and the following disclaimer in the documentation 00017 * and/or other materials provided with the distribution. 00018 * 3. The name of the author may not be used to endorse or promote products 00019 * derived from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00022 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00024 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00026 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00029 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00030 * OF SUCH DAMAGE. 00031 * 00032 * This file is part of the lwIP TCP/IP stack. 00033 * 00034 * Author: Adam Dunkels <adam@sics.se> 00035 * 00036 */ 00037 #ifndef LWIP_HDR_MEM_H 00038 #define LWIP_HDR_MEM_H 00039 00040 #include "lwip/opt.h" 00041 00042 #ifdef __cplusplus 00043 extern "C" { 00044 #endif 00045 00046 #if MEM_LIBC_MALLOC 00047 00048 #include "lwip/arch.h" 00049 00050 typedef size_t mem_size_t; 00051 #define MEM_SIZE_F SZT_F 00052 00053 #elif MEM_USE_POOLS 00054 00055 typedef u16_t mem_size_t; 00056 #define MEM_SIZE_F U16_F 00057 00058 #else 00059 00060 /* MEM_SIZE would have to be aligned, but using 64000 here instead of 00061 * 65535 leaves some room for alignment... 00062 */ 00063 #if MEM_SIZE > 64000L 00064 typedef u32_t mem_size_t; 00065 #define MEM_SIZE_F U32_F 00066 #else 00067 typedef u16_t mem_size_t; 00068 #define MEM_SIZE_F U16_F 00069 #endif /* MEM_SIZE > 64000 */ 00070 #endif 00071 00072 void mem_init(void); 00073 void *mem_trim(void *mem, mem_size_t size); 00074 void *mem_malloc(mem_size_t size); 00075 void *mem_calloc(mem_size_t count, mem_size_t size); 00076 void mem_free(void *mem); 00077 00078 #ifdef __cplusplus 00079 } 00080 #endif 00081 00082 #endif /* LWIP_HDR_MEM_H */
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