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/igmp.h"
#include "lwip/api.h"
#include "lwip/priv/api_msg.h"
#include "lwip/sockets.h"
#include "lwip/sys.h"
#include "lwip/lwip_timers.h"
#include "lwip/stats.h"
#include "netif/etharp.h"
#include "lwip/ip_frag.h"
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "netif/ppp/ppp.h"
#include "netif/ppp/pppos.h"
#include "netif/ppp/pppoe.h"
#include "netif/ppp/pppol2tp.h"
#include "lwip/nd6.h"
#include "lwip/ip6_frag.h"
#include "lwip/mld6.h"
#include "lwip/tcp.h"
#include "lwip/tcpip.h"
#include "lwip/priv/tcp_priv.h"
#include "lwip/priv/tcpip_priv.h"
#include <string.h>
#include "lwip/priv/memp_std.h"

Go to the source code of this file.

Macros
#define	LWIP_MEMPOOL(name, num, size, desc)   LWIP_MEMPOOL_DECLARE(name,num,size,desc)
#define	LWIP_MEMPOOL(name, num, size, desc)   &memp_ ## name,

Functions
void	memp_init_pool (const struct memp_desc *desc)
void	memp_init (void)
void *	memp_malloc_pool (const struct memp_desc *desc)
void *	memp_malloc (memp_t type)
void	memp_free_pool (const struct memp_desc *desc, void *mem)
void	memp_free (memp_t type, void *mem)

Variables
const struct memp_desc *	memp_pools [MEMP_MAX]

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.

Macro Definition Documentation

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

Definition at line 72 of file memp.c.

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

Definition at line 72 of 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 399 of file memp.c.

void memp_free_pool	(	const struct memp_desc *	desc,
		void *	mem
	)

Definition at line 379 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 232 of file memp.c.

void memp_init_pool

(

const struct memp_desc *

desc

)

Definition at line 203 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 303 of file memp.c.

void* memp_malloc_pool

(

const struct memp_desc *

desc

)

Definition at line 256 of file memp.c.

Variable Documentation

const struct memp_desc* memp_pools[MEMP_MAX]

Initial value:

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

}

Definition at line 75 of file memp.c.