lwip/contrib/ports/win32/example_app/default_netif.c

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/*
* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* 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
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* derived from this software without specific prior written permission.
*
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* 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.
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*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#include "lwip/opt.h"
#include "lwip/netif.h"
#include "lwip/ip_addr.h"
#include "lwip/sys.h"
#include "lwip/tcpip.h"
#include "../pcapif.h"
#include "examples/example_app/default_netif.h"
static struct netif netif;
#if LWIP_IPV4
#define NETIF_ADDRS ipaddr, netmask, gw,
void init_default_netif(const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw)
#else
#define NETIF_ADDRS
void init_default_netif(void)
#endif
{
#if NO_SYS
netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, netif_input);
#else /* NO_SYS */
netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, tcpip_input);
#endif /* NO_SYS */
netif_set_default(&netif);
}
void
default_netif_poll(void)
{
#if !PCAPIF_RX_USE_THREAD
/* check for packets and link status*/
pcapif_poll(&netif);
/* When pcapif_poll comes back, there are not packets, so sleep to
prevent 100% CPU load. Don't do this in an embedded system since it
increases latency! */
sys_msleep(1);
#else /* !PCAPIF_RX_USE_THREAD */
sys_msleep(50);
#endif /* !PCAPIF_RX_USE_THREAD */
}
void
default_netif_shutdown(void)
{
/* release the pcap library... */
pcapif_shutdown(&netif);
}