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Data Structures | Macros | Typedefs | Enumerations | Functions
tcpip.h File Reference
#include "lwip/opt.h"
#include "lwip/api_msg.h"
#include "lwip/netifapi.h"
#include "lwip/pbuf.h"
#include "lwip/api.h"
#include "lwip/sys.h"
#include "lwip/timers.h"
#include "lwip/netif.h"
Include dependency graph for tcpip.h:
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures

struct  tcpip_msg
 

Macros

#define LWIP_TCPIP_THREAD_ALIVE()
 
#define LOCK_TCPIP_CORE()
 
#define UNLOCK_TCPIP_CORE()
 
#define TCPIP_APIMSG(m)   tcpip_apimsg(m)
 
#define TCPIP_APIMSG_ACK(m)   sys_sem_signal(&m->conn->op_completed)
 
#define TCPIP_NETIFAPI(m)   tcpip_netifapi(m)
 
#define TCPIP_NETIFAPI_ACK(m)   sys_sem_signal(&m->sem)
 
#define tcpip_callback(f, ctx)   tcpip_callback_with_block(f, ctx, 1)
 

Typedefs

typedef void(* tcpip_init_done_fn) (void *arg)
 
typedef void(* tcpip_callback_fn) (void *ctx)
 

Enumerations

enum  tcpip_msg_type { TCPIP_MSG_INPKT , TCPIP_MSG_CALLBACK , TCPIP_MSG_CALLBACK_STATIC }
 

Functions

void tcpip_init (tcpip_init_done_fn tcpip_init_done, void *arg)
 
err_t tcpip_input (struct pbuf *p, struct netif *inp)
 
err_t tcpip_callback_with_block (tcpip_callback_fn function, void *ctx, u8_t block)
 
struct tcpip_callback_msg * tcpip_callbackmsg_new (tcpip_callback_fn function, void *ctx)
 
void tcpip_callbackmsg_delete (struct tcpip_callback_msg *msg)
 
err_t tcpip_trycallback (struct tcpip_callback_msg *msg)
 
err_t pbuf_free_callback (struct pbuf *p)
 
err_t mem_free_callback (void *m)
 

Macro Definition Documentation

◆ LOCK_TCPIP_CORE

#define LOCK_TCPIP_CORE ( )

Definition at line 67 of file tcpip.h.

◆ LWIP_TCPIP_THREAD_ALIVE

#define LWIP_TCPIP_THREAD_ALIVE ( )

Define this to something that triggers a watchdog. This is called from tcpip_thread after processing a message.

Definition at line 54 of file tcpip.h.

◆ TCPIP_APIMSG

#define TCPIP_APIMSG (   m)    tcpip_apimsg(m)

Definition at line 69 of file tcpip.h.

◆ TCPIP_APIMSG_ACK

#define TCPIP_APIMSG_ACK (   m)    sys_sem_signal(&m->conn->op_completed)

Definition at line 70 of file tcpip.h.

◆ tcpip_callback

#define tcpip_callback (   f,
  ctx 
)    tcpip_callback_with_block(f, ctx, 1)

Definition at line 102 of file tcpip.h.

◆ TCPIP_NETIFAPI

#define TCPIP_NETIFAPI (   m)    tcpip_netifapi(m)

Definition at line 71 of file tcpip.h.

◆ TCPIP_NETIFAPI_ACK

#define TCPIP_NETIFAPI_ACK (   m)    sys_sem_signal(&m->sem)

Definition at line 72 of file tcpip.h.

◆ UNLOCK_TCPIP_CORE

#define UNLOCK_TCPIP_CORE ( )

Definition at line 68 of file tcpip.h.

Typedef Documentation

◆ tcpip_callback_fn

typedef void(* tcpip_callback_fn) (void *ctx)

Function prototype for functions passed to tcpip_callback()

Definition at line 78 of file tcpip.h.

◆ tcpip_init_done_fn

typedef void(* tcpip_init_done_fn) (void *arg)

Function prototype for the init_done function passed to tcpip_init

Definition at line 76 of file tcpip.h.

Enumeration Type Documentation

◆ tcpip_msg_type

Enumerator
TCPIP_MSG_INPKT 
TCPIP_MSG_CALLBACK 
TCPIP_MSG_CALLBACK_STATIC 

Definition at line 117 of file tcpip.h.

Function Documentation

◆ mem_free_callback()

err_t mem_free_callback ( void *  m)

A simple wrapper function that allows you to free heap memory from interrupt context.

Parameters
mthe heap memory to free
Returns
ERR_OK if callback could be enqueued, an err_t if not

Definition at line 506 of file tcpip.c.

◆ pbuf_free_callback()

err_t pbuf_free_callback ( struct pbuf p)

A simple wrapper function that allows you to free a pbuf from interrupt context.

Parameters
pThe pbuf (chain) to be dereferenced.
Returns
ERR_OK if callback could be enqueued, an err_t if not

Definition at line 493 of file tcpip.c.

◆ tcpip_callback_with_block()

err_t tcpip_callback_with_block ( tcpip_callback_fn  function,
void *  ctx,
u8_t  block 
)

Call a specific function in the thread context of tcpip_thread for easy access synchronization. A function called in that way may access lwIP core code without fearing concurrent access.

Parameters
fthe function to call
ctxparameter passed to f
block1 to block until the request is posted, 0 to non-blocking mode
Returns
ERR_OK if the function was called, another err_t if not

Definition at line 211 of file tcpip.c.

◆ tcpip_callbackmsg_delete()

void tcpip_callbackmsg_delete ( struct tcpip_callback_msg *  msg)

Free a callback message allocated by tcpip_callbackmsg_new().

Parameters
msgthe message to free

Definition at line 425 of file tcpip.c.

◆ tcpip_callbackmsg_new()

struct tcpip_callback_msg * tcpip_callbackmsg_new ( tcpip_callback_fn  function,
void *  ctx 
)

Allocate a structure for a static callback message and initialize it. This is intended to be used to send "static" messages from interrupt context.

Parameters
functionthe function to call
ctxparameter passed to function
Returns
a struct pointer to pass to tcpip_trycallback().

Definition at line 408 of file tcpip.c.

◆ tcpip_init()

void tcpip_init ( tcpip_init_done_fn  initfunc,
void *  arg 
)

Initialize this module:

  • initialize all sub modules
  • start the tcpip_thread
Parameters
initfunca function to call when tcpip_thread is running and finished initializing
argargument to pass to initfunc

Definition at line 455 of file tcpip.c.

◆ tcpip_input()

err_t tcpip_input ( struct pbuf p,
struct netif inp 
)

Pass a received packet to tcpip_thread for input processing

Parameters
pthe received packet, p->payload pointing to the Ethernet header or to an IP header (if inp doesn't have NETIF_FLAG_ETHARP or NETIF_FLAG_ETHERNET flags)
inpthe network interface on which the packet was received

Definition at line 161 of file tcpip.c.

◆ tcpip_trycallback()

err_t tcpip_trycallback ( struct tcpip_callback_msg *  msg)

Try to post a callback-message to the tcpip_thread mbox This is intended to be used to send "static" messages from interrupt context.

Parameters
msgpointer to the message to post
Returns
sys_mbox_trypost() return code

Definition at line 438 of file tcpip.c.