www.pudn.com > TCPmodbushy.rar > mem.h

/* 
 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 
 * All rights reserved.  
 *  
 * Redistribution and use in source and binary forms, with or without modification,  
 * are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 * 3. The name of the author may not be used to endorse or promote products 
 *    derived from this software without specific prior written permission.  
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED  
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF  
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT  
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN  
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING  
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY  
 * OF SUCH DAMAGE. 
 * 
 * This file is part of the lwIP TCP/IP stack. 
 *  
 * Author: Adam Dunkels  
 * 
 */ 
#ifndef __LWIP_MEM_H__ 
#define __LWIP_MEM_H__ 
 
#include "o:/lwip/opt.h" 
#include "o:/lwip/arch.h" 
 
/****************************************************************************** 
* Function switch 
*******************************************************************************/ 
#define NEED_MEM_REALLOCM 0 
 
#if MEM_SIZE > 64000l 
typedef u32_t mem_size_t; 
#else 
typedef u16_t mem_size_t; 
#endif /* MEM_SIZE > 64000 */ 
 
 
void mem_init(void); 
 
void xdata *mem_malloc(mem_size_t size); 
void mem_free(void xdata *mem); 
void xdata *mem_realloc(void xdata *mem, mem_size_t size); 
 
#if NEED_MEM_REALLOCM 
void xdata *mem_reallocm(void xdata *mem, mem_size_t size); 
#endif //NEED_MEM_REALLOCM 
 
#ifndef MEM_ALIGN_SIZE 
#define MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1)) 
#endif 
 
#ifndef MEM_ALIGN 
#define MEM_ALIGN(addr) ((void xdata *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1))) 
#endif 
 
#endif /* __LWIP_MEM_H__ */