/* * Copyright (c) 2001-2004 Swedish Institute of Computer Science. * All rights reserved.  *  * Redistribution and use in source and binary forms, with or without modification,  * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, *    this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, *    this list of conditions and the following disclaimer in the documentation *    and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products *    derived from this software without specific prior written permission.  * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY  * OF SUCH DAMAGE. * * This file is part of the lwIP TCP/IP stack. *  * Author: Adam Dunkels <adam@sics.se> * */#ifndef __LWIP_TCPIP_H__#define __LWIP_TCPIP_H__#include "lwip/api_msg.h"#include "lwip/pbuf.h"void tcpip_init(void (* tcpip_init_done)(void *), void *arg);void tcpip_apimsg(struct api_msg *apimsg);err_t tcpip_input(struct pbuf *p, struct netif *inp);err_t tcpip_callback(void (*f)(void *ctx), void *ctx);void tcpip_tcp_timer_needed(void);enum tcpip_msg_type {  TCPIP_MSG_API,  TCPIP_MSG_INPUT,  TCPIP_MSG_CALLBACK};struct tcpip_msg {  enum tcpip_msg_type type;  sys_sem_t *sem;  union {    struct api_msg *apimsg;    struct {      struct pbuf *p;      struct netif *netif;    } inp;    struct {      void (*f)(void *ctx);      void *ctx;    } cb;  } msg;};#endif /* __LWIP_TCPIP_H__ */