lwIP 2.2.0
Lightweight IP stack
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sockets.h File Reference
#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
#include "lwip/err.h"
#include "lwip/inet.h"
#include "lwip/errno.h"
#include <string.h>

Macros

#define LWIP_TIMEVAL_PRIVATE   1
 

Functions

void lwip_socket_thread_init (void)
 
void lwip_socket_thread_cleanup (void)
 
int lwip_shutdown (int s, int how)
 
int lwip_listen (int s, int backlog)
 
int lwip_fcntl (int s, int cmd, int val)
 

Detailed Description

Socket API (to be used from non-TCPIP threads)

Macro Definition Documentation

◆ LWIP_TIMEVAL_PRIVATE

#define LWIP_TIMEVAL_PRIVATE   1

LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided by your system, set this to 0 and include <sys/time.h> in cc.h

Function Documentation

◆ lwip_fcntl()

int lwip_fcntl ( int  s,
int  cmd,
int  val 
)

A minimal implementation of fcntl. Currently only the commands F_GETFL and F_SETFL are implemented. The flag O_NONBLOCK and access modes are supported for F_GETFL, only the flag O_NONBLOCK is implemented for F_SETFL.

◆ lwip_listen()

int lwip_listen ( int  s,
int  backlog 
)

Set a socket into listen mode. The socket may not have been used for another connection previously.

Parameters
sthe socket to set to listening mode
backlog(ATTENTION: needs TCP_LISTEN_BACKLOG=1)
Returns
0 on success, non-zero on failure

◆ lwip_shutdown()

int lwip_shutdown ( int  s,
int  how 
)

Close one end of a full-duplex connection.

◆ lwip_socket_thread_cleanup()

void lwip_socket_thread_cleanup ( void  )

LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore

◆ lwip_socket_thread_init()

void lwip_socket_thread_init ( void  )

LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore