Perl 非同期プログラミング

use strict; use LWP::UserAgent; my @urls = qw( http://www.livedoor.com/ http://www.dena.jp/ http://mixi.jp/ http://www.gaiax.co.jp/ ); my $ua = LWP::UserAgent->new(); foreach my $url (@urls) { my $res = $ua->get( $url ); ... }

while ( $still_alive ) { ... ... }

POE EV Event AnyEvent Glib

AnyEvent->timer( after => $after, interval => $interval, cb => sub { .... } ); AE::timer $after, $interval, sub { ... };

my $timer; $timer = AE::timer 0, 1, sub { warn “timer invoked”; undef $timer; };

my $io; $io = AE::io $fh, $read_or_write, sub { .... # $fh $fh undef $io; };

use AnyEvent::Util qw(fh_nonblocking); my $fh = get_socket(...); fh_nonblocking $fh, 1; my $io; $io = AE::io $fh, 0, sub { ... };

my $sig; $sig = AE::signal "TERM", sub { ... undef $sig; };

my $child; $child = AE::child $pid, sub { ... undef $child; };

my $idle; $idle = AE::idle sub { ... undef $idle; };

my $timer; $timer = AE::timer 0, 1, sub { warn “timer invoked”; undef $timer; };

{ my $timer = AE::timer 0, 1, sub { warn “timer invoked”; # }; } # $timer

my $timer; $timer = AE::timer 0, 1, sub { ... # $timer undef $timer; # }

#!perl use strict; use AnyEvent; my $cv = AE::cv { print "Endn"; }; my $timer; $timer = AE::timer 10, 0, sub { print "Waited 10 seconds!n"; undef $timer; $cv->send; }; $cv->recv;

#!perl use strict; use AnyEvent; my $timer; $timer = AE::timer 10, 0, sub { print "Waited 10 seconds!n"; undef $timer; };

#!perl use strict; use AnyEvent; my @delay = (1, 2, 5, 10); my $cv = AE::cv { print "All timers are donen" }; foreach my $delay (@delay) { my $timer; $cv->begin; $timer = AE::timer $delay, 0, sub { print "Timer for delay = $delayn"; undef $timer; $cv->end; }; } $cv->recv;

#!perl use strict; use AnyEvent; sub add { my ($x, $y, $cv) = @_; my $timer; $timer = AE::timer 5, 0, sub { $cv->send( $x + $y ); undef $timer; }; } my $cv = AE::cv { my $cv = shift; my ($result) = $cv->recv; print "Result = $resultn"; }; add( 3, 2, $cv ); $cv->recv;

use strict; use AnyEvent; use AnyEvent::HTTP; my @urls = qw( http://www.livedoor.com/ http://www.dena.jp/ http://mixi.jp/ http://www.gaiax.co.jp/ ); my $cv = AE::cv { print "Fetched all urls!n"; }; my $guard; foreach my $url (@urls) { $cv->begin; $guard = http_get $url, sub { print "Got $urln"; undef $guard; $cv->end; } } $cv->recv;

plackup -s Twiggy ...

use strict; use AnyEvent; sub { my $env = shift; return sub { my $start_response = shift; my $writer = $start_response->( [ 200, [ "Content-Type" => "text/plain" ] ]); my $count = 1; my $t; $t = AE::timer 2, 2, sub { $writer->write( ($count * 2) . " n"); if ($count++ == 5) { undef $t; $writer->close; } }; } }

http://hokkaido.pm.org	47
http://www.slideshare.net	6
http://kurataka.com	5
http://twitter.com	2
http://b.hatena.ne.jp	2
http://paper.li	1

Perl 非同期プログラミング

by lestrrat on Aug 08, 2010

Accessibility

Categories

Tags

Upload Details

Usage Rights

6 Embeds 63

Statistics

Perl 非同期プログラミング — Presentation Transcript