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/*

 * 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 <adam@sics.se>

 *

 */

#ifndef __LWIP_MEMP_H__

#define __LWIP_MEMP_H__

#include "lwip/opt.h"

#ifdef __cplusplus

extern "C" {

#endif

/* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */

typedef enum {

#define LWIP_MEMPOOL(name,num,size,desc)  MEMP_##name,

#include "lwip/memp_std.h"

  MEMP_MAX

} memp_t;

#if MEM_USE_POOLS

/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */

typedef enum {

    /* Get the first (via:

       MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/

    MEMP_POOL_HELPER_FIRST = ((u8_t)

#define LWIP_MEMPOOL(name,num,size,desc)

#define LWIP_MALLOC_MEMPOOL_START 1

#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0

#define LWIP_MALLOC_MEMPOOL_END

#include "lwip/memp_std.h"

    ) ,

    /* Get the last (via:

       MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */

    MEMP_POOL_HELPER_LAST = ((u8_t)

#define LWIP_MEMPOOL(name,num,size,desc)

#define LWIP_MALLOC_MEMPOOL_START

#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size *

#define LWIP_MALLOC_MEMPOOL_END 1

#include "lwip/memp_std.h"

    )

} memp_pool_helper_t;

/* The actual start and stop values are here (cast them over)

   We use this helper type and these defines so we can avoid using const memp_t values */

#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)

#define MEMP_POOL_LAST   ((memp_t) MEMP_POOL_HELPER_LAST)

#endif /* MEM_USE_POOLS */

#if MEMP_MEM_MALLOC || MEM_USE_POOLS

extern const u16_t memp_sizes[MEMP_MAX];

#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */

#if MEMP_MEM_MALLOC

#include "mem.h"

#define memp_init()

#define memp_malloc(type)     mem_malloc(memp_sizes[type])

#define memp_free(type, mem)  mem_free(mem)

#else /* MEMP_MEM_MALLOC */

#if MEM_USE_POOLS

/** This structure is used to save the pool one element came from. */

struct memp_malloc_helper

{

   memp_t poolnr;

};

#endif /* MEM_USE_POOLS */

void  memp_init(void);

#if MEMP_OVERFLOW_CHECK

void *memp_malloc_fn(memp_t type, const char* file, const int line);

#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)

#else

void *memp_malloc(memp_t type);

#endif

void  memp_free(memp_t type, void *mem);

#endif /* MEMP_MEM_MALLOC */

#ifdef __cplusplus

}

#endif

#endif /* __LWIP_MEMP_H__ */