FreeRTOS/Common/ethernet/lwIP/include/lwip/mem.h

   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 #include "lwip/arch.h"
  37
  38 #if MEM_SIZE > 64000l
  39 typedef u32_t mem_size_t;
  40 #define MEM_SIZE_F U32_F
  41 #else
  42 typedef u16_t mem_size_t;
  43 #define MEM_SIZE_F U16_F
  44 #endif /* MEM_SIZE > 64000 */
  45
  46 #if MEM_LIBC_MALLOC
  47 /* aliases for C library malloc() */
  48 #define mem_init()
  49 #define mem_free(x) free(x)
  50 #define mem_malloc(x) malloc(x)
  51 #define mem_realloc(x, size) realloc(x,size)
  52 #else
  53 /* lwIP alternative malloc */
  54 void mem_init(void);
  55 void *mem_malloc(mem_size_t size);
  56 void mem_free(void *mem);
  57 void *mem_realloc(void *mem, mem_size_t size);
  58 #endif
  59
  60 #ifndef MEM_ALIGN_SIZE
  61 #define MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
  62 #endif
  63
  64 #ifndef MEM_ALIGN
  65 #define MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
  66 #endif
  67
  68 #endif /* __LWIP_MEM_H__ */
  69