lwIP  2.1.0
Lightweight IP stack
memp.c File Reference
#include "lwip/opt.h"
#include "lwip/memp.h"
#include "lwip/sys.h"
#include "lwip/stats.h"
#include <string.h>
#include "lwip/pbuf.h"
#include "lwip/raw.h"
#include "lwip/udp.h"
#include "lwip/tcp.h"
#include "lwip/priv/tcp_priv.h"
#include "lwip/altcp.h"
#include "lwip/ip4_frag.h"
#include "lwip/netbuf.h"
#include "lwip/api.h"
#include "lwip/priv/tcpip_priv.h"
#include "lwip/priv/api_msg.h"
#include "lwip/priv/sockets_priv.h"
#include "lwip/etharp.h"
#include "lwip/igmp.h"
#include "lwip/timeouts.h"
#include "netif/ppp/ppp_opts.h"
#include "lwip/netdb.h"
#include "lwip/dns.h"
#include "lwip/priv/nd6_priv.h"
#include "lwip/ip6_frag.h"
#include "lwip/mld6.h"
#include "lwip/priv/memp_std.h"
#include "path/to/my/lwip_hooks.h"

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)
 

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.

Function Documentation

◆ memp_free()

void memp_free ( memp_t  type,
void *  mem 
)

Put an element back into its pool.

Parameters
typethe pool where to put mem
memthe memp element to free

◆ memp_free_pool()

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

Put a custom pool element back into its pool.

Parameters
descthe pool where to put mem
memthe memp element to free

◆ memp_init()

void memp_init ( void  )

Initializes lwIP built-in pools. Related functions: memp_malloc, memp_free

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

◆ memp_init_pool()

void memp_init_pool ( const struct memp_desc desc)

Initialize custom memory pool. Related functions: memp_malloc_pool, memp_free_pool

Parameters
descpool to initialize

◆ memp_malloc()

void* memp_malloc ( memp_t  type)

Get an element from a specific pool.

Parameters
typethe pool to get an element from
Returns
a pointer to the allocated memory or a NULL pointer on error

◆ memp_malloc_pool()

void* memp_malloc_pool ( const struct memp_desc desc)

Get an element from a custom pool.

Parameters
descthe pool to get an element from
Returns
a pointer to the allocated memory or a NULL pointer on error