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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [lwIP_130/] [src/] [include/] [lwip/] [mem.h] - Blame information for rev 606

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1 606 jeremybenn
/*
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 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without modification,
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 * are permitted provided that the following conditions are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 * 3. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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 * OF SUCH DAMAGE.
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 *
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 * This file is part of the lwIP TCP/IP stack.
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 *
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 * Author: Adam Dunkels <adam@sics.se>
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 *
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 */
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#ifndef __LWIP_MEM_H__
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#define __LWIP_MEM_H__
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#include "lwip/opt.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if MEM_LIBC_MALLOC
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#include <stddef.h> /* for size_t */
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typedef size_t mem_size_t;
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/* aliases for C library malloc() */
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#define mem_init()
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/* in case C library malloc() needs extra protection,
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 * allow these defines to be overridden.
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 */
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#ifndef mem_free
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#define mem_free(x) free(x)
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#endif
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#ifndef mem_malloc
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#define mem_malloc(x) malloc(x)
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#endif
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#ifndef mem_calloc
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#define mem_calloc(x, y) calloc(x, y)
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#endif
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#ifndef mem_realloc
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#define mem_realloc(x, size) (x)
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#endif
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#else /* MEM_LIBC_MALLOC */
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/* MEM_SIZE would have to be aligned, but using 64000 here instead of
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 * 65535 leaves some room for alignment...
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 */
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#if MEM_SIZE > 64000l
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typedef u32_t mem_size_t;
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#else
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typedef u16_t mem_size_t;
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#endif /* MEM_SIZE > 64000 */
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#if MEM_USE_POOLS
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/** mem_init is not used when using pools instead of a heap */
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#define mem_init()
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/** mem_realloc is not used when using pools instead of a heap:
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    we can't free part of a pool element and don't want to copy the rest */
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#define mem_realloc(mem, size) (mem)
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#else /* MEM_USE_POOLS */
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/* lwIP alternative malloc */
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void  mem_init(void);
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void *mem_realloc(void *mem, mem_size_t size);
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#endif /* MEM_USE_POOLS */
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void *mem_malloc(mem_size_t size);
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void *mem_calloc(mem_size_t count, mem_size_t size);
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void  mem_free(void *mem);
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#endif /* MEM_LIBC_MALLOC */
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#ifndef LWIP_MEM_ALIGN_SIZE
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#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
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#endif
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#ifndef LWIP_MEM_ALIGN
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#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LWIP_MEM_H__ */

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