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merge prife's patch for exclusive access pcap driver. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2404 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com 2012-11-13 01:44:34 +00:00
parent b04c308524
commit 0f111d6e47
1 changed files with 28 additions and 3 deletions
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31
bsp/simulator/pcap/pcap_netif.c
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@ -1,3 +1,19 @@
/*
* File : pcap_netif.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2012, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2012-11-05 Bernard the first version
* 2012-11-13 Bernard merge prife's patch for exclusive
* access pcap driver.
*/
#ifdef _TIME_T_DEFINED
#undef _TIME_T_DEFINED
#endif
@ -56,13 +72,16 @@ static void pcap_thread_entry(void* parameter)
NETIF_PCAP(&pcap_netif_device) = tap;
// pcap_loop(tap, 0, packet_handler, NULL);
/* Read the packets */
while((res = pcap_next_ex(tap, &header, &pkt_data)) >= 0)
while (1)
{
struct eth_device* eth;
struct pbuf *p;
rt_enter_critical();
res = pcap_next_ex(tap, &header, &pkt_data);
rt_exit_critical();
if (res == 0) continue;
eth = (struct eth_device*) &pcap_netif_device;
@ -113,6 +132,7 @@ static rt_err_t pcap_netif_init(rt_device_t dev)
for(d = alldevs, i = 0; i < inum-1 ;d = d->next, i++);
{
rt_kprintf("Select (%s) as network interface\n", d->description);
packet_mb = rt_mb_create("pcap", 64, RT_IPC_FLAG_FIFO);
tid = rt_thread_create("pcap", pcap_thread_entry, d,
2048, RT_THREAD_PRIORITY_MAX - 1, 10);
@ -180,6 +200,7 @@ rt_err_t pcap_netif_tx( rt_device_t dev, struct pbuf* p)
rt_uint8_t buf[2048];
rt_err_t result = RT_EOK;
pcap_t *tap;
int res;
tap = NETIF_PCAP(dev);
@ -196,7 +217,11 @@ rt_err_t pcap_netif_tx( rt_device_t dev, struct pbuf* p)
q = q->next;
}
if (pcap_sendpacket(tap, buf, p->tot_len) != 0)
rt_enter_critical();
res = pcap_sendpacket(tap, buf, p->tot_len);
rt_exit_critical();
if (res != 0)
{
rt_kprintf("Error sending the packet: \n", pcap_geterr(tap));
result = -RT_ERROR;