Bug #78078 for Linux-Epoll: Please allow undef/EINTR behaviour

Wed Jun 27 20:13:29 2012 leonerd-cpan [...] leonerd.org.uk - Ticket created

Subject:

Please allow undef/EINTR behaviour

It would be useful if there could be a (possibly non-default) mode that, rather than $epoll->wait restarting on EINTR, it could return immediately. Currently, I have to end every %SIG handler with a special die "EINTR"; and wrap the call to ->wait with my $ret = eval { $epoll->wait( ... ) }; $ret = -1 if $@ eq "EINTR"; Having a mode where wait would return immediately instead of retrying would simplify this, and perhaps improve performance too. -- Paul Evans

Thu Jun 28 08:48:21 2012 LEONT [...] cpan.org - Correspondence added

On Wed Jun 27 20:13:29 2012, PEVANS wrote: Show quoted text

> It would be useful if there could be a (possibly non-default) mode that, > rather than $epoll->wait restarting on EINTR, it could return immediately. > > Currently, I have to end every %SIG handler with a special die "EINTR"; > and wrap the call to ->wait with > > my $ret = eval { $epoll->wait( ... ) }; > $ret = -1 if $@ eq "EINTR"; > > Having a mode where wait would return immediately instead of retrying > would simplify this, and perhaps improve performance too.

I'm not sure what I was thinking, what I'm doing now is screwing up timeouts, it should have been doing what you're suggesting in the first place. And probably it should be a bit less eager to throw exceptions anyway (one convention I used elsewhere that I find very effective is to only throw them in void context). Leon

Thu Jun 28 08:48:22 2012 The RT System itself - Status changed from 'new' to 'open'

Thu Jun 28 08:49:10 2012 LEONT [...] cpan.org - Taken

Sat Jun 30 10:47:16 2012 LEONT [...] cpan.org - Status changed from 'open' to 'resolved'

Sat Jun 30 10:47:17 2012 LEONT [...] cpan.org - Fixed in 0.005 added