memp.c File Reference

#include "lwip/opt.h"
#include "lwip/memp.h"
#include "lwip/pbuf.h"
#include "lwip/udp.h"
#include "lwip/raw.h"
#include "lwip/tcp.h"
#include "lwip/igmp.h"
#include "lwip/api.h"
#include "lwip/api_msg.h"
#include "lwip/tcpip.h"
#include "lwip/sys.h"
#include "lwip/stats.h"
#include "netif/etharp.h"
#include "lwip/ip_frag.h"
#include <string.h>
#include "lwip/memp_std.h"

Go to the source code of this file.

Data Structures
struct	memp
Defines
#define	MEMP_SIZE   0
#define	MEMP_ALIGN_SIZE(x)   (LWIP_MEM_ALIGN_SIZE(x))
#define	LWIP_MEMPOOL(name, num, size, desc)   LWIP_MEM_ALIGN_SIZE(size),
#define	LWIP_MEMPOOL(name, num, size, desc)   (num),
#define	LWIP_MEMPOOL(name, num, size, desc)   + ( (num) * (MEMP_SIZE + MEMP_ALIGN_SIZE(size) ) )
Functions
void	memp_init (void)
void *	memp_malloc (memp_t type)
void	memp_free (memp_t type, void *mem)

---

Detailed Description

Dynamic pool memory manager

lwIP has dedicated pools for many structures (netconn, protocol control blocks, packet buffers, ...). All these pools are managed here.

Definition in file memp.c.

---

Function Documentation

void memp_free	(	memp_t	type,
		void *	mem
	)

Put an element back into its pool.

Parameters:

	type	the pool where to put mem
	mem	the memp element to free

Definition at line 352 of file memp.c.

void memp_init

(

void

)

Initialize this module.

Carves out memp_memory into linked lists for each pool-type.

Definition at line 260 of file memp.c.

void* memp_malloc

(

memp_t

type

)

Get an element from a specific pool.

Parameters:

type

the pool to get an element from

the debug version has two more parameters:

Parameters:

	file	file name calling this function
	line	number of line where this function is called

Returns:

a pointer to the allocated memory or a NULL pointer on error

Definition at line 307 of file memp.c.