On 06/26/2012 10:45 AM, levin li wrote:
> + if ((events & EPOLLHUP) || (events & EPOLLERR)) {
> + eprintf("request handler error, exit\n");
> + exit(1);
> + }
According to the manual
"poll(2) returns a POLLERR event. As noted above, write(2) can never
overflow the counter. However an overflow can occur if 2^64 eventfd
"signal posts" were performed by the KAIO subsystem (theoretically
possible, but practically unlikely). If an overflow has occurred, then
read(2) will return that maximum uint64_t value (i.e., 0xffffffffffffffff)."
We should only check EPOLLERR and event this happens, I think write
event is still valid, so I think we don't need to check events.
Also, if you want to exit the sheep, use panic instead.
Thanks,
Yuan
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