On 18/03/2015 18:08, Didier Kryn wrote:
No, you must write to the pipe to detect it is broken. And you won't try to write before you've got an event from the netlink. This event will be lost.
I skim over that discussion (because I don't agree with the design) so I can't make any substantial comments, but here's a nitpick: if you use an asynchronous event loop, your selector triggers - POLLHUP for poll(), not sure if it's writability or exception for select()- as soon as a pipe is broken. Note that events can still be lost, because the pipe can be broken while you're reading a message from the netlink, before you come back to the selector; so the message you just read cannot be sent. But that is a risk you have to take everytime you perform buffered IO, there's no way around it. -- Laurent _______________________________________________ busybox mailing list busybox@busybox.net http://lists.busybox.net/mailman/listinfo/busybox
