During a long ping, the tester will repeatedly switch the dev interface on and off.
When the interface is down and ping is in sendto sem_wait state,ifdown will trigger event of sendto and post sem.
in func of sendto_eventhandler:
if ((flags & NETDEV_DOWN) != 0)
{
nerr("ERROR: Interface is down\n");
pstate->snd_result = -ENETUNREACH;
goto end_wait;
}
Signed-off-by: meijian <meijian@xiaomi.com>
During a long ping, the tester will repeatedly switch the dev interface on and off.
When the interface is down and ping is in poll sem_wait state,ifdown will trigger event of poll and post sem.
The poll will return and revent is 0x18 POLLHUP | POLLERR.Then recvfrom will process and return error to stop ping.
if ((flags & NETDEV_DOWN) != 0)
{
eventset |= (POLLHUP | POLLERR);
}
Signed-off-by: meijian <meijian@xiaomi.com>
nsh> ping 192.168.31.162
PING 192.168.31.162 56 bytes of data
56 bytes from 192.168.31.162: icmp_seq=0 time=8 ms
56 bytes from 192.168.31.162: icmp_seq=1 time=27 ms
56 bytes from 192.168.31.162: icmp_seq=2 time=17 ms
56 bytes from 192.168.31.162: icmp_seq=3 time=14 ms
56 bytes from 192.168.31.162: icmp_seq=4 time=16 ms
56 bytes from 192.168.31.162: icmp_seq=5 time=14 ms
56 bytes from 192.168.31.162: icmp_seq=6 time=8 ms
56 bytes from 192.168.31.162: icmp_seq=7 time=87 ms
WARNING: Received after timeout
56 bytes from 192.168.31.162: icmp_seq=8 time=1003 ms
56 bytes from 192.168.31.162: icmp_seq=8 time=6 ms
56 bytes from 192.168.31.162: icmp_seq=9 time=5 ms
10 packets transmitted, 11 received, 4294967287% packet loss, time 10011 ms
Signed-off-by: zhouliang3 <zhouliang3@xiaomi.com>
1、Round trip times in the ping command range from millisecond to subtle
2、Add statistics on RTT related min/avg/Max/mdev in ping program
3、The ping command supports ctrl+c interruption operations
Signed-off-by: xuewenliang <xuewenliang@xiaomi.com>
1.Remove void cast for function because many place ignore the returned value witout cast
2.Replace void cast for variable with UNUSED macro
Change-Id: Ie644129a563244a6397036789c4c3ea83c4e9b09
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
