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\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # IO::Poll.pm # # Copyright (c) 1997-8 Graham Barr . All rights reserved. # This program is free software; you can redistribute it and/or # modify it under the same terms as Perl itself. package IO::Poll; use strict; use IO::Handle; use Exporter (); our(@ISA, @EXPORT_OK, @EXPORT, $VERSION); @ISA = qw(Exporter); $VERSION = "0.09"; @EXPORT = qw( POLLIN POLLOUT POLLERR POLLHUP POLLNVAL ); @EXPORT_OK = qw( POLLPRI POLLRDNORM POLLWRNORM POLLRDBAND POLLWRBAND POLLNORM ); # [0] maps fd's to requested masks # [1] maps fd's to returned masks # [2] maps fd's to handles sub new { my $class = shift; my $self = bless [{},{},{}], $class; $self; } sub mask { my $self = shift; my $io = shift; my $fd = fileno($io); return unless defined $fd; if (@_) { my $mask = shift; if($mask) { $self->[0]{$fd}{$io} = $mask; # the error events are always returned $self->[1]{$fd} = 0; # output mask $self->[2]{$io} = $io; # remember handle } else { delete $self->[0]{$fd}{$io}; unless(%{$self->[0]{$fd}}) { # We no longer have any handles for this FD delete $self->[1]{$fd}; delete $self->[0]{$fd}; } delete $self->[2]{$io}; } } return unless exists $self->[0]{$fd} and exists $self->[0]{$fd}{$io}; return $self->[0]{$fd}{$io}; } sub poll { my($self,$timeout) = @_; $self->[1] = {}; my($fd,$mask,$iom); my @poll = (); while(($fd,$iom) = each %{$self->[0]}) { $mask = 0; $mask |= $_ for values(%$iom); push(@poll,$fd => $mask); } my $ret = @poll ? _poll(defined($timeout) ? $timeout * 1000 : -1,@poll) : 0; return $ret unless $ret > 0; while(@poll) { my($fd,$got) = splice(@poll,0,2); $self->[1]{$fd} = $got if $got; } return $ret; } sub events { my $self = shift; my $io = shift; my $fd = fileno($io); exists $self->[1]{$fd} and exists $self->[0]{$fd}{$io} ? $self->[1]{$fd} & ($self->[0]{$fd}{$io}|POLLHUP|POLLERR|POLLNVAL) : 0; } sub remove { my $self = shift; my $io = shift; $self->mask($io,0); } sub handles { my $self = shift; return values %{$self->[2]} unless @_; my $events = shift || 0; my($fd,$ev,$io,$mask); my @handles = (); while(($fd,$ev) = each %{$self->[1]}) { while (($io,$mask) = each %{$self->[0]{$fd}}) { $mask |= POLLHUP|POLLERR|POLLNVAL; # must allow these push @handles,$self->[2]{$io} if ($ev & $mask) & $events; } } return @handles; } 1; __END__ =head1 NAME IO::Poll - Object interface to system poll call =head1 SYNOPSIS use IO::Poll qw(POLLRDNORM POLLWRNORM POLLIN POLLHUP); $po