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Dependencies:   mbed

lwip/include/lwip/tcpip.h@0:715023d993d6, 2011-10-17 (annotated)

Committer:
gbeardall
Date:
Mon Oct 17 10:39:17 2011 +0000
Revision:
0:715023d993d6

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


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/*





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 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.





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 * All rights reserved. 





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 * 





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 * Redistribution and use in source and binary forms, with or without modification, 





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 * are permitted provided that the following conditions are met:





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 *





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 * 1. Redistributions of source code must retain the above copyright notice,





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 *    this list of conditions and the following disclaimer.





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 * 2. Redistributions in binary form must reproduce the above copyright notice,





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 *    this list of conditions and the following disclaimer in the documentation





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 *    and/or other materials provided with the distribution.





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 * 3. The name of the author may not be used to endorse or promote products





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 *    derived from this software without specific prior written permission. 





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 *





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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 





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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 





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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 





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 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 





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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 





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 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 





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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 





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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 





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 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 





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 * OF SUCH DAMAGE.





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 *





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 * This file is part of the lwIP TCP/IP stack.





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 * 





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 * Author: Adam Dunkels <adam@sics.se>





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 *





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 */





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#ifndef __LWIP_TCPIP_H__





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#define __LWIP_TCPIP_H__





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#include "lwip/opt.h"





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#if !NO_SYS /* don't build if not configured for use in lwipopts.h */





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#include "lwip/api_msg.h"





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#include "lwip/netifapi.h"





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#include "lwip/pbuf.h"





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#include "lwip/api.h"





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#include "lwip/sys.h"





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#include "lwip/timers.h"





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#include "lwip/netif.h"





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#ifdef __cplusplus





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extern "C" {





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#endif





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/** Define this to something that triggers a watchdog. This is called from





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 * tcpip_thread after processing a message. */





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#ifndef LWIP_TCPIP_THREAD_ALIVE





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#define LWIP_TCPIP_THREAD_ALIVE()





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#endif





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#if LWIP_TCPIP_CORE_LOCKING





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/** The global semaphore to lock the stack. */





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extern sys_mutex_t lock_tcpip_core;





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#define LOCK_TCPIP_CORE()     sys_mutex_lock(&lock_tcpip_core)





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#define UNLOCK_TCPIP_CORE()   sys_mutex_unlock(&lock_tcpip_core)





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#define TCPIP_APIMSG(m)       tcpip_apimsg_lock(m)





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#define TCPIP_APIMSG_ACK(m)





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#define TCPIP_NETIFAPI(m)     tcpip_netifapi_lock(m)





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#define TCPIP_NETIFAPI_ACK(m)





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#else /* LWIP_TCPIP_CORE_LOCKING */





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#define LOCK_TCPIP_CORE()





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#define UNLOCK_TCPIP_CORE()





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#define TCPIP_APIMSG(m)       tcpip_apimsg(m)





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





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#define TCPIP_NETIFAPI(m)     tcpip_netifapi(m)





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





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#endif /* LWIP_TCPIP_CORE_LOCKING */





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/** Function prototype for the init_done function passed to tcpip_init */





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typedef void (*tcpip_init_done_fn)(void *arg);





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/** Function prototype for functions passed to tcpip_callback() */





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typedef void (*tcpip_callback_fn)(void *ctx);





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void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg);





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#if LWIP_NETCONN





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err_t tcpip_apimsg(struct api_msg *apimsg);





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#if LWIP_TCPIP_CORE_LOCKING





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err_t tcpip_apimsg_lock(struct api_msg *apimsg);





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#endif /* LWIP_TCPIP_CORE_LOCKING */





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#endif /* LWIP_NETCONN */





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err_t tcpip_input(struct pbuf *p, struct netif *inp);





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#if LWIP_NETIF_API





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err_t tcpip_netifapi(struct netifapi_msg *netifapimsg);





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#if LWIP_TCPIP_CORE_LOCKING





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err_t tcpip_netifapi_lock(struct netifapi_msg *netifapimsg);





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#endif /* LWIP_TCPIP_CORE_LOCKING */





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#endif /* LWIP_NETIF_API */





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





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





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/* free pbufs or heap memory from another context without blocking */





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err_t pbuf_free_callback(struct pbuf *p);





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err_t mem_free_callback(void *m);





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#if LWIP_TCPIP_TIMEOUT





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err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);





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err_t tcpip_untimeout(sys_timeout_handler h, void *arg);





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#endif /* LWIP_TCPIP_TIMEOUT */





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enum tcpip_msg_type {





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#if LWIP_NETCONN





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  TCPIP_MSG_API,





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#endif /* LWIP_NETCONN */





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  TCPIP_MSG_INPKT,





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#if LWIP_NETIF_API





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  TCPIP_MSG_NETIFAPI,





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#endif /* LWIP_NETIF_API */





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#if LWIP_TCPIP_TIMEOUT





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  TCPIP_MSG_TIMEOUT,





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  TCPIP_MSG_UNTIMEOUT,





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#endif /* LWIP_TCPIP_TIMEOUT */





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  TCPIP_MSG_CALLBACK





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};





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struct tcpip_msg {





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  enum tcpip_msg_type type;





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  sys_sem_t *sem;





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  union {





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#if LWIP_NETCONN





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    struct api_msg *apimsg;





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#endif /* LWIP_NETCONN */





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#if LWIP_NETIF_API





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    struct netifapi_msg *netifapimsg;





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#endif /* LWIP_NETIF_API */





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    struct {





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      struct pbuf *p;





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      struct netif *netif;





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    } inp;





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    struct {





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      tcpip_callback_fn function;





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      void *ctx;





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    } cb;





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#if LWIP_TCPIP_TIMEOUT





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    struct {





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      u32_t msecs;





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      sys_timeout_handler h;





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      void *arg;





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    } tmo;





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#endif /* LWIP_TCPIP_TIMEOUT */





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  } msg;





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};





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#ifdef __cplusplus





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}





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#endif





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#endif /* !NO_SYS */





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#endif /* __LWIP_TCPIP_H__ */