example3 doesn't respond to network change

[peterwu]

Hi Robert,

I was playing with udev_example3.c but the program doesn't print out anything if I disconnect/reconnect the wireless network.

Debug shows that the problem is at L55. (ret is equal to 0)

ret = select(fd+1, &fds, NULL, NULL, &tv);

[Meha555]

I found this problem too. You need to delete this line: udev_monitor_filter_add_match_subsystem_devtype(mon, "net", NULL);. But this will lead to only monitor hotplug events.
However I still don't know why it should be delete. Besides, I wonder why don't need to set recvbuf size by udev_monitor_set_receive_buffer_size ？