unixlib.c

来自「NXPl788上lwip的无操作系统移植,基于Embest开发板」· C语言 代码 · 共 92 行

/*
 * Copyright (c) 2001-2003 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.
 * 
 * Author: Kieran Mansley <[e-mail]>
 *
 * $Id: unixlib.c,v 1.10 2010/02/17 16:52:30 goldsimon Exp $
 */

/*-----------------------------------------------------------------------------------*/
/* unixlib.c
 *
 * The initialisation functions for a shared library
 *
 * You may need to configure this file to your own needs - it is only an example
 * of how lwIP can be used as a self initialising shared library.
 *
 * In particular, you should change the gateway, ipaddr, and netmask to be the values
 * you would like the stack to use.
 */
/*-----------------------------------------------------------------------------------*/
#include "lwip/init.h"
#include "lwip/sys.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/pbuf.h"
#include "lwip/tcp.h"
#include "lwip/tcpip.h"
#include "lwip/netif.h"
#include "lwip/stats.h"
#include "lwip/sockets.h"

#include "netif/tapif.h"

struct netif netif;

static void
tcpip_init_done(void *arg)
{
  ip_addr_t ipaddr, netmask, gateway;
  sys_sem_t *sem;
  sem = arg;

  /*
    CHANGE THESE to suit your own network configuration:
  */
  IP4_ADDR(&gateway, 192,168,1,1);
  IP4_ADDR(&ipaddr, 192,168,1,2);
  IP4_ADDR(&netmask, 255,255,255,0);
  
  netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gateway, NULL, tapif_init,
			      tcpip_input));

  sys_sem_signal(sem);
}

void _init(void){
  sys_sem_t sem;

  if(sys_sem_new(&sem, 0) != ERR_OK) {
    LWIP_ASSERT("failed to create semaphore", 0);
  }
  tcpip_init(tcpip_init_done, &sem);
  sys_sem_wait(&sem);
  sys_sem_free(&sem);
}

void _fini(void){
}