
#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__ */
