[ViewVC] Diff of: cvs/AnyEvent/lib/AnyEvent.pm

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.248 by root, Sat Jul 18 22:27:10 2009 UTC vs.
Revision 1.279 by root, Sun Aug 9 16:05:11 2009 UTC

…		…
1	=head1 NAME	1	=head1 NAME
2		2
3	AnyEvent - provide framework for multiple event loops	3	AnyEvent - the DBI of event loop programming
4		4
5	EV, Event, Glib, Tk, Perl, Event::Lib, Qt and POE are various supported	5	EV, Event, Glib, Tk, Perl, Event::Lib, Irssi, rxvt-unicode, IO::Async, Qt
6	event loops.	6	and POE are various supported event loops/environments.
7		7
8	=head1 SYNOPSIS	8	=head1 SYNOPSIS
9		9
10	use AnyEvent;	10	use AnyEvent;
11		11
40	=head1 INTRODUCTION/TUTORIAL	40	=head1 INTRODUCTION/TUTORIAL
41		41
42	This manpage is mainly a reference manual. If you are interested	42	This manpage is mainly a reference manual. If you are interested
43	in a tutorial or some gentle introduction, have a look at the	43	in a tutorial or some gentle introduction, have a look at the
44	L<AnyEvent::Intro> manpage.	44	L<AnyEvent::Intro> manpage.
		45
		46	=head1 SUPPORT
		47
		48	There is a mailinglist for discussing all things AnyEvent, and an IRC
		49	channel, too.
		50
		51	See the AnyEvent project page at the B<Schmorpforge Ta-Sa Software
		52	Repository>, at L<http://anyevent.schmorp.de>, for more info.
45		53
46	=head1 WHY YOU SHOULD USE THIS MODULE (OR NOT)	54	=head1 WHY YOU SHOULD USE THIS MODULE (OR NOT)
47		55
48	Glib, POE, IO::Async, Event... CPAN offers event models by the dozen	56	Glib, POE, IO::Async, Event... CPAN offers event models by the dozen
49	nowadays. So what is different about AnyEvent?	57	nowadays. So what is different about AnyEvent?
…		…
173	my variables are only visible after the statement in which they are	181	my variables are only visible after the statement in which they are
174	declared.	182	declared.
175		183
176	=head2 I/O WATCHERS	184	=head2 I/O WATCHERS
177		185
		186	$w = AnyEvent->io (
		187	fh => <filehandle_or_fileno>,
		188	poll => <"r" or "w">,
		189	cb => <callback>,
		190	);
		191
178	You can create an I/O watcher by calling the C<< AnyEvent->io >> method	192	You can create an I/O watcher by calling the C<< AnyEvent->io >> method
179	with the following mandatory key-value pairs as arguments:	193	with the following mandatory key-value pairs as arguments:
180		194
181	C<fh> is the Perl I<file handle> (or a naked file descriptor) to watch	195	C<fh> is the Perl I<file handle> (or a naked file descriptor) to watch
182	for events (AnyEvent might or might not keep a reference to this file	196	for events (AnyEvent might or might not keep a reference to this file
…		…
211	undef $w;	225	undef $w;
212	});	226	});
213		227
214	=head2 TIME WATCHERS	228	=head2 TIME WATCHERS
215		229
		230	$w = AnyEvent->timer (after => <seconds>, cb => <callback>);
		231
		232	$w = AnyEvent->timer (
		233	after => <fractional_seconds>,
		234	interval => <fractional_seconds>,
		235	cb => <callback>,
		236	);
		237
216	You can create a time watcher by calling the C<< AnyEvent->timer >>	238	You can create a time watcher by calling the C<< AnyEvent->timer >>
217	method with the following mandatory arguments:	239	method with the following mandatory arguments:
218		240
219	C<after> specifies after how many seconds (fractional values are	241	C<after> specifies after how many seconds (fractional values are
220	supported) the callback should be invoked. C<cb> is the callback to invoke	242	supported) the callback should be invoked. C<cb> is the callback to invoke
…		…
347		369
348	=back	370	=back
349		371
350	=head2 SIGNAL WATCHERS	372	=head2 SIGNAL WATCHERS
351		373
		374	$w = AnyEvent->signal (signal => <uppercase_signal_name>, cb => <callback>);
		375
352	You can watch for signals using a signal watcher, C<signal> is the signal	376	You can watch for signals using a signal watcher, C<signal> is the signal
353	I<name> in uppercase and without any C<SIG> prefix, C<cb> is the Perl	377	I<name> in uppercase and without any C<SIG> prefix, C<cb> is the Perl
354	callback to be invoked whenever a signal occurs.	378	callback to be invoked whenever a signal occurs.
355		379
356	Although the callback might get passed parameters, their value and	380	Although the callback might get passed parameters, their value and
…		…
375	my $w = AnyEvent->signal (signal => "INT", cb => sub { exit 1 });	399	my $w = AnyEvent->signal (signal => "INT", cb => sub { exit 1 });
376		400
377	=head3 Signal Races, Delays and Workarounds	401	=head3 Signal Races, Delays and Workarounds
378		402
379	Many event loops (e.g. Glib, Tk, Qt, IO::Async) do not support attaching	403	Many event loops (e.g. Glib, Tk, Qt, IO::Async) do not support attaching
380	callbacks to signals in a generic way, which is a pity, as you cannot do	404	callbacks to signals in a generic way, which is a pity, as you cannot
381	race-free signal handling in perl. AnyEvent will try to do it's best, but	405	do race-free signal handling in perl, requiring C libraries for
		406	this. AnyEvent will try to do it's best, which means in some cases,
382	in some cases, signals will be delayed. The maximum time a signal might	407	signals will be delayed. The maximum time a signal might be delayed is
383	be delayed is specified in C<$AnyEvent::MAX_SIGNAL_LATENCY> (default: 10	408	specified in C<$AnyEvent::MAX_SIGNAL_LATENCY> (default: 10 seconds). This
384	seconds). This variable can be changed only before the first signal	409	variable can be changed only before the first signal watcher is created,
385	watcher is created, and should be left alone otherwise. Higher values	410	and should be left alone otherwise. This variable determines how often
		411	AnyEvent polls for signals (in case a wake-up was missed). Higher values
386	will cause fewer spurious wake-ups, which is better for power and CPU	412	will cause fewer spurious wake-ups, which is better for power and CPU
		413	saving.
		414
387	saving. All these problems can be avoided by installing the optional	415	All these problems can be avoided by installing the optional
388	L<Async::Interrupt> module. This will not work with inherently broken	416	L<Async::Interrupt> module, which works with most event loops. It will not
389	event loops such as L<Event> or L<Event::Lib> (and not with L<POE>	417	work with inherently broken event loops such as L<Event> or L<Event::Lib>
390	currently, as POE does it's own workaround with one-second latency). With	418	(and not with L<POE> currently, as POE does it's own workaround with
391	those, you just have to suffer the delays.	419	one-second latency). For those, you just have to suffer the delays.
392		420
393	=head2 CHILD PROCESS WATCHERS	421	=head2 CHILD PROCESS WATCHERS
394		422
		423	$w = AnyEvent->child (pid => <process id>, cb => <callback>);
		424
395	You can also watch on a child process exit and catch its exit status.	425	You can also watch on a child process exit and catch its exit status.
396		426
397	The child process is specified by the C<pid> argument (if set to C<0>, it	427	The child process is specified by the C<pid> argument (one some backends,
398	watches for any child process exit). The watcher will triggered only when	428	using C<0> watches for any child process exit, on others this will
399	the child process has finished and an exit status is available, not on	429	croak). The watcher will be triggered only when the child process has
400	any trace events (stopped/continued).	430	finished and an exit status is available, not on any trace events
		431	(stopped/continued).
401		432
402	The callback will be called with the pid and exit status (as returned by	433	The callback will be called with the pid and exit status (as returned by
403	waitpid), so unlike other watcher types, you I<can> rely on child watcher	434	waitpid), so unlike other watcher types, you I<can> rely on child watcher
404	callback arguments.	435	callback arguments.
405		436
…		…
446	# do something else, then wait for process exit	477	# do something else, then wait for process exit
447	$done->recv;	478	$done->recv;
448		479
449	=head2 IDLE WATCHERS	480	=head2 IDLE WATCHERS
450		481
		482	$w = AnyEvent->idle (cb => <callback>);
		483
451	Sometimes there is a need to do something, but it is not so important	484	Sometimes there is a need to do something, but it is not so important
452	to do it instantly, but only when there is nothing better to do. This	485	to do it instantly, but only when there is nothing better to do. This
453	"nothing better to do" is usually defined to be "no other events need	486	"nothing better to do" is usually defined to be "no other events need
454	attention by the event loop".	487	attention by the event loop".
455		488
…		…
481	});	514	});
482	});	515	});
483		516
484	=head2 CONDITION VARIABLES	517	=head2 CONDITION VARIABLES
485		518
		519	$cv = AnyEvent->condvar;
		520
		521	$cv->send (<list>);
		522	my @res = $cv->recv;
		523
486	If you are familiar with some event loops you will know that all of them	524	If you are familiar with some event loops you will know that all of them
487	require you to run some blocking "loop", "run" or similar function that	525	require you to run some blocking "loop", "run" or similar function that
488	will actively watch for new events and call your callbacks.	526	will actively watch for new events and call your callbacks.
489		527
490	AnyEvent is slightly different: it expects somebody else to run the event	528	AnyEvent is slightly different: it expects somebody else to run the event
…		…
509	Condition variables are similar to callbacks, except that you can	547	Condition variables are similar to callbacks, except that you can
510	optionally wait for them. They can also be called merge points - points	548	optionally wait for them. They can also be called merge points - points
511	in time where multiple outstanding events have been processed. And yet	549	in time where multiple outstanding events have been processed. And yet
512	another way to call them is transactions - each condition variable can be	550	another way to call them is transactions - each condition variable can be
513	used to represent a transaction, which finishes at some point and delivers	551	used to represent a transaction, which finishes at some point and delivers
514	a result.	552	a result. And yet some people know them as "futures" - a promise to
		553	compute/deliver something that you can wait for.
515		554
516	Condition variables are very useful to signal that something has finished,	555	Condition variables are very useful to signal that something has finished,
517	for example, if you write a module that does asynchronous http requests,	556	for example, if you write a module that does asynchronous http requests,
518	then a condition variable would be the ideal candidate to signal the	557	then a condition variable would be the ideal candidate to signal the
519	availability of results. The user can either act when the callback is	558	availability of results. The user can either act when the callback is
…		…
751	=item $cb = $cv->cb ($cb->($cv))	790	=item $cb = $cv->cb ($cb->($cv))
752		791
753	This is a mutator function that returns the callback set and optionally	792	This is a mutator function that returns the callback set and optionally
754	replaces it before doing so.	793	replaces it before doing so.
755		794
756	The callback will be called when the condition becomes "true", i.e. when	795	The callback will be called when the condition becomes (or already was)
757	C<send> or C<croak> are called, with the only argument being the condition	796	"true", i.e. when C<send> or C<croak> are called (or were called), with
758	variable itself. Calling C<recv> inside the callback or at any later time	797	the only argument being the condition variable itself. Calling C<recv>
759	is guaranteed not to block.	798	inside the callback or at any later time is guaranteed not to block.
760		799
761	=back	800	=back
762		801
763	=head1 SUPPORTED EVENT LOOPS/BACKENDS	802	=head1 SUPPORTED EVENT LOOPS/BACKENDS
764		803
…		…
767	=over 4	806	=over 4
768		807
769	=item Backends that are autoprobed when no other event loop can be found.	808	=item Backends that are autoprobed when no other event loop can be found.
770		809
771	EV is the preferred backend when no other event loop seems to be in	810	EV is the preferred backend when no other event loop seems to be in
772	use. If EV is not installed, then AnyEvent will try Event, and, failing	811	use. If EV is not installed, then AnyEvent will fall back to its own
773	that, will fall back to its own pure-perl implementation, which is	812	pure-perl implementation, which is available everywhere as it comes with
774	available everywhere as it comes with AnyEvent itself.	813	AnyEvent itself.
775		814
776	AnyEvent::Impl::EV based on EV (interface to libev, best choice).	815	AnyEvent::Impl::EV based on EV (interface to libev, best choice).
777	AnyEvent::Impl::Event based on Event, very stable, few glitches.
778	AnyEvent::Impl::Perl pure-perl implementation, fast and portable.	816	AnyEvent::Impl::Perl pure-perl implementation, fast and portable.
779		817
780	=item Backends that are transparently being picked up when they are used.	818	=item Backends that are transparently being picked up when they are used.
781		819
782	These will be used when they are currently loaded when the first watcher	820	These will be used when they are currently loaded when the first watcher
783	is created, in which case it is assumed that the application is using	821	is created, in which case it is assumed that the application is using
784	them. This means that AnyEvent will automatically pick the right backend	822	them. This means that AnyEvent will automatically pick the right backend
785	when the main program loads an event module before anything starts to	823	when the main program loads an event module before anything starts to
786	create watchers. Nothing special needs to be done by the main program.	824	create watchers. Nothing special needs to be done by the main program.
787		825
		826	AnyEvent::Impl::Event based on Event, very stable, few glitches.
788	AnyEvent::Impl::Glib based on Glib, slow but very stable.	827	AnyEvent::Impl::Glib based on Glib, slow but very stable.
789	AnyEvent::Impl::Tk based on Tk, very broken.	828	AnyEvent::Impl::Tk based on Tk, very broken.
790	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.	829	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.
791	AnyEvent::Impl::POE based on POE, very slow, some limitations.	830	AnyEvent::Impl::POE based on POE, very slow, some limitations.
		831	AnyEvent::Impl::Irssi used when running within irssi.
792		832
793	=item Backends with special needs.	833	=item Backends with special needs.
794		834
795	Qt requires the Qt::Application to be instantiated first, but will	835	Qt requires the Qt::Application to be instantiated first, but will
796	otherwise be picked up automatically. As long as the main program	836	otherwise be picked up automatically. As long as the main program
…		…
870	event module detection too early, for example, L<AnyEvent::AIO> creates	910	event module detection too early, for example, L<AnyEvent::AIO> creates
871	and installs the global L<IO::AIO> watcher in a C<post_detect> block to	911	and installs the global L<IO::AIO> watcher in a C<post_detect> block to
872	avoid autodetecting the event module at load time.	912	avoid autodetecting the event module at load time.
873		913
874	If called in scalar or list context, then it creates and returns an object	914	If called in scalar or list context, then it creates and returns an object
875	that automatically removes the callback again when it is destroyed. See	915	that automatically removes the callback again when it is destroyed (or
		916	C<undef> when the hook was immediately executed). See L<AnyEvent::AIO> for
876	L<Coro::BDB> for a case where this is useful.	917	a case where this is useful.
		918
		919	Example: Create a watcher for the IO::AIO module and store it in
		920	C<$WATCHER>. Only do so after the event loop is initialised, though.
		921
		922	our WATCHER;
		923
		924	my $guard = AnyEvent::post_detect {
		925	$WATCHER = AnyEvent->io (fh => IO::AIO::poll_fileno, poll => 'r', cb => \&IO::AIO::poll_cb);
		926	};
		927
		928	# the \|\|= is important in case post_detect immediately runs the block,
		929	# as to not clobber the newly-created watcher. assigning both watcher and
		930	# post_detect guard to the same variable has the advantage of users being
		931	# able to just C<undef $WATCHER> if the watcher causes them grief.
		932
		933	$WATCHER \|\|= $guard;
877		934
878	=item @AnyEvent::post_detect	935	=item @AnyEvent::post_detect
879		936
880	If there are any code references in this array (you can C<push> to it	937	If there are any code references in this array (you can C<push> to it
881	before or after loading AnyEvent), then they will called directly after	938	before or after loading AnyEvent), then they will called directly after
…		…
1058		1115
1059	BEGIN { AnyEvent::common_sense }	1116	BEGIN { AnyEvent::common_sense }
1060		1117
1061	use Carp ();	1118	use Carp ();
1062		1119
1063	our $VERSION = 4.85;	1120	our $VERSION = '5.0';
1064	our $MODEL;	1121	our $MODEL;
1065		1122
1066	our $AUTOLOAD;	1123	our $AUTOLOAD;
1067	our @ISA;	1124	our @ISA;
1068		1125
…		…
1093	for reverse split /\s,\s/,	1150	for reverse split /\s,\s/,
1094	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";	1151	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";
1095	}	1152	}
1096		1153
1097	my @models = (	1154	my @models = (
1098	[EV:: => AnyEvent::Impl::EV::],	1155	[EV:: => AnyEvent::Impl::EV:: , 1],
1099	[Event:: => AnyEvent::Impl::Event::],
1100	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl::],	1156	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl:: , 1],
1101	# everything below here will not be autoprobed	1157	# everything below here will not (normally) be autoprobed
1102	# as the pureperl backend should work everywhere	1158	# as the pureperl backend should work everywhere
1103	# and is usually faster	1159	# and is usually faster
		1160	[Event:: => AnyEvent::Impl::Event::, 1],
1104	[Glib:: => AnyEvent::Impl::Glib::], # becomes extremely slow with many watchers	1161	[Glib:: => AnyEvent::Impl::Glib:: , 1], # becomes extremely slow with many watchers
1105	[Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy	1162	[Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy
		1163	[Irssi:: => AnyEvent::Impl::Irssi::], # Irssi has a bogus "Event" package
1106	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles	1164	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles
1107	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program	1165	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program
1108	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza	1166	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza
1109	[Wx:: => AnyEvent::Impl::POE::],	1167	[Wx:: => AnyEvent::Impl::POE::],
1110	[Prima:: => AnyEvent::Impl::POE::],	1168	[Prima:: => AnyEvent::Impl::POE::],
1111	# IO::Async is just too broken - we would need workarounds for its	1169	# IO::Async is just too broken - we would need workarounds for its
1112	# byzantine signal and broken child handling, among others.	1170	# byzantine signal and broken child handling, among others.
1113	# IO::Async is rather hard to detect, as it doesn't have any	1171	# IO::Async is rather hard to detect, as it doesn't have any
1114	# obvious default class.	1172	# obvious default class.
1115	# [IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program	1173	[IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program
1116	# [IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program	1174	[IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program
1117	# [IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program	1175	[IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program
		1176	[AnyEvent::Impl::IOAsync:: => AnyEvent::Impl::IOAsync::], # requires special main program
1118	);	1177	);
1119		1178
1120	our %method = map +($_ => 1),	1179	our %method = map +($_ => 1),
1121	qw(io timer time now now_update signal child idle condvar one_event DESTROY);	1180	qw(io timer time now now_update signal child idle condvar one_event DESTROY);
1122		1181
…		…
1126	my ($cb) = @_;	1185	my ($cb) = @_;
1127		1186
1128	if ($MODEL) {	1187	if ($MODEL) {
1129	$cb->();	1188	$cb->();
1130		1189
1131	1	1190	undef
1132	} else {	1191	} else {
1133	push @post_detect, $cb;	1192	push @post_detect, $cb;
1134		1193
1135	defined wantarray	1194	defined wantarray
1136	? bless \$cb, "AnyEvent::Util::postdetect"	1195	? bless \$cb, "AnyEvent::Util::postdetect"
…		…
1168	}	1227	}
1169	}	1228	}
1170	}	1229	}
1171		1230
1172	unless ($MODEL) {	1231	unless ($MODEL) {
1173	# try to load a model	1232	# try to autoload a model
1174
1175	for (@REGISTRY, @models) {	1233	for (@REGISTRY, @models) {
1176	my ($package, $model) = @$_;	1234	my ($package, $model, $autoload) = @$_;
		1235	if (
		1236	$autoload
1177	if (eval "require $package"	1237	and eval "require $package"
1178	and ${"$package\::VERSION"} > 0	1238	and ${"$package\::VERSION"} > 0
1179	and eval "require $model") {	1239	and eval "require $model"
		1240	) {
1180	$MODEL = $model;	1241	$MODEL = $model;
1181	warn "AnyEvent: autoprobed model '$model', using it.\n" if $VERBOSE >= 2;	1242	warn "AnyEvent: autoloaded model '$model', using it.\n" if $VERBOSE >= 2;
1182	last;	1243	last;
1183	}	1244	}
1184	}	1245	}
1185		1246
1186	$MODEL	1247	$MODEL
…		…
1225	or die "AnyEvent->io: cannot dup() filehandle in mode '$poll': $!,";	1286	or die "AnyEvent->io: cannot dup() filehandle in mode '$poll': $!,";
1226		1287
1227	# we assume CLOEXEC is already set by perl in all important cases	1288	# we assume CLOEXEC is already set by perl in all important cases
1228		1289
1229	($fh2, $rw)	1290	($fh2, $rw)
		1291	}
		1292
		1293	=head1 SIMPLIFIED AE API
		1294
		1295	Starting with version 5.0, AnyEvent officially supports a second, much
		1296	simpler, API that is designed to reduce the calling, typing and memory
		1297	overhead.
		1298
		1299	See the L<AE> manpage for details.
		1300
		1301	=cut
		1302
		1303	package AE;
		1304
		1305	our $VERSION = $AnyEvent::VERSION;
		1306
		1307	sub io($$$) {
		1308	AnyEvent->io (fh => $_[0], poll => $_[1] ? "w" : "r", cb => $_[2])
		1309	}
		1310
		1311	sub timer($$$) {
		1312	AnyEvent->timer (after => $_[0], interval => $_[1], cb => $_[2])
		1313	}
		1314
		1315	sub signal($$) {
		1316	AnyEvent->signal (signal => $_[0], cb => $_[1])
		1317	}
		1318
		1319	sub child($$) {
		1320	AnyEvent->child (pid => $_[0], cb => $_[1])
		1321	}
		1322
		1323	sub idle($) {
		1324	AnyEvent->idle (cb => $_[0])
		1325	}
		1326
		1327	sub cv(;&) {
		1328	AnyEvent->condvar (@_ ? (cb => $_[0]) : ())
		1329	}
		1330
		1331	sub now() {
		1332	AnyEvent->now
		1333	}
		1334
		1335	sub now_update() {
		1336	AnyEvent->now_update
		1337	}
		1338
		1339	sub time() {
		1340	AnyEvent->time
1230	}	1341	}
1231		1342
1232	package AnyEvent::Base;	1343	package AnyEvent::Base;
1233		1344
1234	# default implementations for many methods	1345	# default implementations for many methods
…		…
1258	}	1369	}
1259		1370
1260	# default implementation for ->signal	1371	# default implementation for ->signal
1261		1372
1262	our $HAVE_ASYNC_INTERRUPT;	1373	our $HAVE_ASYNC_INTERRUPT;
		1374
		1375	sub _have_async_interrupt() {
		1376	$HAVE_ASYNC_INTERRUPT = 1*(!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT}
		1377	&& eval "use Async::Interrupt 1.0 (); 1")
		1378	unless defined $HAVE_ASYNC_INTERRUPT;
		1379
		1380	$HAVE_ASYNC_INTERRUPT
		1381	}
		1382
1263	our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);	1383	our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);
1264	our (%SIG_ASY, %SIG_ASY_W);	1384	our (%SIG_ASY, %SIG_ASY_W);
1265	our ($SIG_COUNT, $SIG_TW);	1385	our ($SIG_COUNT, $SIG_TW);
1266		1386
1267	sub _signal_exec {	1387	sub _signal_exec {
…		…
1275	$_->() for values %{ $SIG_CB{$_} \|\| {} };	1395	$_->() for values %{ $SIG_CB{$_} \|\| {} };
1276	}	1396	}
1277	}	1397	}
1278	}	1398	}
1279		1399
1280	# install a dumym wakeupw atcher to reduce signal catching latency	1400	# install a dummy wakeup watcher to reduce signal catching latency
1281	sub _sig_add() {	1401	sub _sig_add() {
1282	unless ($SIG_COUNT++) {	1402	unless ($SIG_COUNT++) {
1283	# try to align timer on a full-second boundary, if possible	1403	# try to align timer on a full-second boundary, if possible
1284	my $NOW = AnyEvent->now;	1404	my $NOW = AE::now;
1285		1405
1286	$SIG_TW = AnyEvent->timer (	1406	$SIG_TW = AE::timer
1287	after => $MAX_SIGNAL_LATENCY - ($NOW - int $NOW),	1407	$MAX_SIGNAL_LATENCY - ($NOW - int $NOW),
1288	interval => $MAX_SIGNAL_LATENCY,	1408	$MAX_SIGNAL_LATENCY,
1289	cb => sub { }, # just for the PERL_ASYNC_CHECK	1409	sub { } # just for the PERL_ASYNC_CHECK
1290	);	1410	;
1291	}	1411	}
1292	}	1412	}
1293		1413
1294	sub _sig_del {	1414	sub _sig_del {
1295	undef $SIG_TW	1415	undef $SIG_TW
1296	unless --$SIG_COUNT;	1416	unless --$SIG_COUNT;
1297	}	1417	}
1298		1418
		1419	our $_sig_name_init; $_sig_name_init = sub {
		1420	eval q{ # poor man's autoloading
		1421	undef $_sig_name_init;
		1422
		1423	if (_have_async_interrupt) {
		1424	*sig2num = \&Async::Interrupt::sig2num;
		1425	*sig2name = \&Async::Interrupt::sig2name;
		1426	} else {
		1427	require Config;
		1428
		1429	my %signame2num;
		1430	@signame2num{ split ' ', $Config::Config{sig_name} }
		1431	= split ' ', $Config::Config{sig_num};
		1432
		1433	my @signum2name;
		1434	@signum2name[values %signame2num] = keys %signame2num;
		1435
		1436	*sig2num = sub($) {
		1437	$_[0] > 0 ? shift : $signame2num{+shift}
		1438	};
		1439	*sig2name = sub ($) {
		1440	$_[0] > 0 ? $signum2name[+shift] : shift
		1441	};
		1442	}
		1443	};
		1444	die if $@;
		1445	};
		1446
		1447	sub sig2num ($) { &$_sig_name_init; &sig2num }
		1448	sub sig2name($) { &$_sig_name_init; &sig2name }
		1449
1299	sub _signal {	1450	sub signal {
		1451	eval q{ # poor man's autoloading {}
		1452	# probe for availability of Async::Interrupt
		1453	if (_have_async_interrupt) {
		1454	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
		1455
		1456	$SIGPIPE_R = new Async::Interrupt::EventPipe;
		1457	$SIG_IO = AE::io $SIGPIPE_R->fileno, 0, \&_signal_exec;
		1458
		1459	} else {
		1460	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;
		1461
		1462	require Fcntl;
		1463
		1464	if (AnyEvent::WIN32) {
		1465	require AnyEvent::Util;
		1466
		1467	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
		1468	AnyEvent::Util::fh_nonblocking ($SIGPIPE_R, 1) if $SIGPIPE_R;
		1469	AnyEvent::Util::fh_nonblocking ($SIGPIPE_W, 1) if $SIGPIPE_W; # just in case
		1470	} else {
		1471	pipe $SIGPIPE_R, $SIGPIPE_W;
		1472	fcntl $SIGPIPE_R, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_R;
		1473	fcntl $SIGPIPE_W, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_W; # just in case
		1474
		1475	# not strictly required, as $^F is normally 2, but let's make sure...
		1476	fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
		1477	fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
		1478	}
		1479
		1480	$SIGPIPE_R
		1481	or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n";
		1482
		1483	$SIG_IO = AE::io $SIGPIPE_R, 0, \&_signal_exec;
		1484	}
		1485
		1486	*signal = sub {
1300	my (undef, %arg) = @_;	1487	my (undef, %arg) = @_;
1301		1488
1302	my $signal = uc $arg{signal}	1489	my $signal = uc $arg{signal}
1303	or Carp::croak "required option 'signal' is missing";	1490	or Carp::croak "required option 'signal' is missing";
1304		1491
1305	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
1306
1307	if ($HAVE_ASYNC_INTERRUPT) {	1492	if ($HAVE_ASYNC_INTERRUPT) {
1308	# async::interrupt	1493	# async::interrupt
1309		1494
1310	$SIG_ASY{$signal} \|\|= do {	1495	$signal = sig2num $signal;
1311	my $asy = new Async::Interrupt	1496	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		1497
		1498	$SIG_ASY{$signal} \|\|= new Async::Interrupt
1312	cb => sub { undef $SIG_EV{$signal} },	1499	cb => sub { undef $SIG_EV{$signal} },
1313	signal => $signal,	1500	signal => $signal,
1314	pipe => [$SIGPIPE_R->filenos],	1501	pipe => [$SIGPIPE_R->filenos],
		1502	pipe_autodrain => 0,
		1503	;
		1504
		1505	} else {
		1506	# pure perl
		1507
		1508	# AE::Util has been loaded in signal
		1509	$signal = sig2name $signal;
		1510	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		1511
		1512	$SIG{$signal} \|\|= sub {
		1513	local $!;
		1514	syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;
		1515	undef $SIG_EV{$signal};
		1516	};
		1517
		1518	# can't do signal processing without introducing races in pure perl,
		1519	# so limit the signal latency.
		1520	_sig_add;
1315	;	1521	}
1316	$asy->pipe_autodrain (0);
1317		1522
1318	$asy	1523	bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
1319	};	1524	};
1320		1525
1321	} else {	1526	*AnyEvent::Base::signal::DESTROY = sub {
1322	# pure perl	1527	my ($signal, $cb) = @{$_[0]};
1323		1528
1324	$SIG{$signal} \|\|= sub {	1529	_sig_del;
1325	local $!;	1530
1326	syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;	1531	delete $SIG_CB{$signal}{$cb};
		1532
		1533	$HAVE_ASYNC_INTERRUPT
		1534	? delete $SIG_ASY{$signal}
		1535	: # delete doesn't work with older perls - they then
		1536	# print weird messages, or just unconditionally exit
		1537	# instead of getting the default action.
1327	undef $SIG_EV{$signal};	1538	undef $SIG{$signal}
		1539	unless keys %{ $SIG_CB{$signal} };
1328	};	1540	};
1329
1330	# can't do signal processing without introducing races in pure perl,
1331	# so limit the signal latency.
1332	_sig_add;
1333	}	1541	};
1334		1542	die if $@;
1335	bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
1336	}
1337
1338	sub signal {
1339	# probe for availability of Async::Interrupt
1340	if (!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT} && eval "use Async::Interrupt 0.6 (); 1") {
1341	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
1342
1343	$HAVE_ASYNC_INTERRUPT = 1;
1344	$SIGPIPE_R = new Async::Interrupt::EventPipe;
1345	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R->fileno, poll => "r", cb => \&_signal_exec);
1346
1347	} else {
1348	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;
1349
1350	require Fcntl;
1351
1352	if (AnyEvent::WIN32) {
1353	require AnyEvent::Util;
1354
1355	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
1356	AnyEvent::Util::fh_nonblocking ($SIGPIPE_R) if $SIGPIPE_R;
1357	AnyEvent::Util::fh_nonblocking ($SIGPIPE_W) if $SIGPIPE_W; # just in case
1358	} else {
1359	pipe $SIGPIPE_R, $SIGPIPE_W;
1360	fcntl $SIGPIPE_R, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_R;
1361	fcntl $SIGPIPE_W, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_W; # just in case
1362
1363	# not strictly required, as $^F is normally 2, but let's make sure...
1364	fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
1365	fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
1366	}
1367
1368	$SIGPIPE_R
1369	or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n";
1370
1371	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R, poll => "r", cb => \&_signal_exec);
1372	}
1373
1374	*signal = \&_signal;
1375	&signal	1543	&signal
1376	}
1377
1378	sub AnyEvent::Base::signal::DESTROY {
1379	my ($signal, $cb) = @{$_[0]};
1380
1381	_sig_del;
1382
1383	delete $SIG_CB{$signal}{$cb};
1384
1385	$HAVE_ASYNC_INTERRUPT
1386	? delete $SIG_ASY{$signal}
1387	: # delete doesn't work with older perls - they then
1388	# print weird messages, or just unconditionally exit
1389	# instead of getting the default action.
1390	undef $SIG{$signal}
1391	unless keys %{ $SIG_CB{$signal} };
1392	}	1544	}
1393		1545
1394	# default implementation for ->child	1546	# default implementation for ->child
1395		1547
1396	our %PID_CB;	1548	our %PID_CB;
1397	our $CHLD_W;	1549	our $CHLD_W;
1398	our $CHLD_DELAY_W;	1550	our $CHLD_DELAY_W;
1399	our $WNOHANG;	1551	our $WNOHANG;
1400		1552
		1553	sub _emit_childstatus($$) {
		1554	my (undef, $rpid, $rstatus) = @_;
		1555
		1556	$_->($rpid, $rstatus)
		1557	for values %{ $PID_CB{$rpid} \|\| {} },
		1558	values %{ $PID_CB{0} \|\| {} };
		1559	}
		1560
1401	sub _sigchld {	1561	sub _sigchld {
		1562	my $pid;
		1563
		1564	AnyEvent->_emit_childstatus ($pid, $?)
1402	while (0 < (my $pid = waitpid -1, $WNOHANG)) {	1565	while ($pid = waitpid -1, $WNOHANG) > 0;
1403	$_->($pid, $?)
1404	for values %{ $PID_CB{$pid} \|\| {} },
1405	values %{ $PID_CB{0} \|\| {} };
1406	}
1407	}	1566	}
1408		1567
1409	sub child {	1568	sub child {
1410	my (undef, %arg) = @_;	1569	my (undef, %arg) = @_;
1411		1570
…		…
1418	$WNOHANG \|\|= $^O =~ /^(?:openbsd\|netbsd\|linux\|freebsd\|cygwin\|MSWin32)$/	1577	$WNOHANG \|\|= $^O =~ /^(?:openbsd\|netbsd\|linux\|freebsd\|cygwin\|MSWin32)$/
1419	? 1	1578	? 1
1420	: eval { local $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } \|\| 1;	1579	: eval { local $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } \|\| 1;
1421		1580
1422	unless ($CHLD_W) {	1581	unless ($CHLD_W) {
1423	$CHLD_W = AnyEvent->signal (signal => 'CHLD', cb => \&_sigchld);	1582	$CHLD_W = AE::signal CHLD => \&_sigchld;
1424	# child could be a zombie already, so make at least one round	1583	# child could be a zombie already, so make at least one round
1425	&_sigchld;	1584	&_sigchld;
1426	}	1585	}
1427		1586
1428	bless [$pid, $arg{cb}], "AnyEvent::Base::child"	1587	bless [$pid, $arg{cb}], "AnyEvent::Base::child"
…		…
1454	# never use more then 50% of the time for the idle watcher,	1613	# never use more then 50% of the time for the idle watcher,
1455	# within some limits	1614	# within some limits
1456	$w = 0.0001 if $w < 0.0001;	1615	$w = 0.0001 if $w < 0.0001;
1457	$w = 5 if $w > 5;	1616	$w = 5 if $w > 5;
1458		1617
1459	$w = AnyEvent->timer (after => $w, cb => $rcb);	1618	$w = AE::timer $w, 0, $rcb;
1460	} else {	1619	} else {
1461	# clean up...	1620	# clean up...
1462	undef $w;	1621	undef $w;
1463	undef $rcb;	1622	undef $rcb;
1464	}	1623	}
1465	};	1624	};
1466		1625
1467	$w = AnyEvent->timer (after => 0.05, cb => $rcb);	1626	$w = AE::timer 0.05, 0, $rcb;
1468		1627
1469	bless \\$cb, "AnyEvent::Base::idle"	1628	bless \\$cb, "AnyEvent::Base::idle"
1470	}	1629	}
1471		1630
1472	sub AnyEvent::Base::idle::DESTROY {	1631	sub AnyEvent::Base::idle::DESTROY {
…		…
1526	Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak};	1685	Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak};
1527	wantarray ? @{ $_[0]{_ae_sent} } : $_[0]{_ae_sent}[0]	1686	wantarray ? @{ $_[0]{_ae_sent} } : $_[0]{_ae_sent}[0]
1528	}	1687	}
1529		1688
1530	sub cb {	1689	sub cb {
1531	$_[0]{_ae_cb} = $_[1] if @_ > 1;	1690	my $cv = shift;
		1691
		1692	@_
		1693	and $cv->{_ae_cb} = shift
		1694	and $cv->{_ae_sent}
		1695	and (delete $cv->{_ae_cb})->($cv);
		1696
1532	$_[0]{_ae_cb}	1697	$cv->{_ae_cb}
1533	}	1698	}
1534		1699
1535	sub begin {	1700	sub begin {
1536	++$_[0]{_ae_counter};	1701	++$_[0]{_ae_counter};
1537	$_[0]{_ae_end_cb} = $_[1] if @_ > 1;	1702	$_[0]{_ae_end_cb} = $_[1] if @_ > 1;
…		…
1896	through AnyEvent. The benchmark creates a lot of timers (with a zero	2061	through AnyEvent. The benchmark creates a lot of timers (with a zero
1897	timeout) and I/O watchers (watching STDOUT, a pty, to become writable,	2062	timeout) and I/O watchers (watching STDOUT, a pty, to become writable,
1898	which it is), lets them fire exactly once and destroys them again.	2063	which it is), lets them fire exactly once and destroys them again.
1899		2064
1900	Source code for this benchmark is found as F<eg/bench> in the AnyEvent	2065	Source code for this benchmark is found as F<eg/bench> in the AnyEvent
1901	distribution.	2066	distribution. It uses the L<AE> interface, which makes a real difference
		2067	for the EV and Perl backends only.
1902		2068
1903	=head3 Explanation of the columns	2069	=head3 Explanation of the columns
1904		2070
1905	I<watcher> is the number of event watchers created/destroyed. Since	2071	I<watcher> is the number of event watchers created/destroyed. Since
1906	different event models feature vastly different performances, each event	2072	different event models feature vastly different performances, each event
…		…
1927	watcher.	2093	watcher.
1928		2094
1929	=head3 Results	2095	=head3 Results
1930		2096
1931	name watchers bytes create invoke destroy comment	2097	name watchers bytes create invoke destroy comment
1932	EV/EV 400000 224 0.47 0.35 0.27 EV native interface	2098	EV/EV 100000 223 0.47 0.43 0.27 EV native interface
1933	EV/Any 100000 224 2.88 0.34 0.27 EV + AnyEvent watchers	2099	EV/Any 100000 223 0.48 0.42 0.26 EV + AnyEvent watchers
1934	CoroEV/Any 100000 224 2.85 0.35 0.28 coroutines + Coro::Signal	2100	Coro::EV/Any 100000 223 0.47 0.42 0.26 coroutines + Coro::Signal
1935	Perl/Any 100000 452 4.13 0.73 0.95 pure perl implementation	2101	Perl/Any 100000 431 2.70 0.74 0.92 pure perl implementation
1936	Event/Event 16000 517 32.20 31.80 0.81 Event native interface	2102	Event/Event 16000 516 31.16 31.84 0.82 Event native interface
1937	Event/Any 16000 590 35.85 31.55 1.06 Event + AnyEvent watchers	2103	Event/Any 16000 1203 42.61 34.79 1.80 Event + AnyEvent watchers
1938	IOAsync/Any 16000 989 38.10 32.77 11.13 via IO::Async::Loop::IO_Poll	2104	IOAsync/Any 16000 1911 41.92 27.45 16.81 via IO::Async::Loop::IO_Poll
1939	IOAsync/Any 16000 990 37.59 29.50 10.61 via IO::Async::Loop::Epoll	2105	IOAsync/Any 16000 1726 40.69 26.37 15.25 via IO::Async::Loop::Epoll
1940	Glib/Any 16000 1357 102.33 12.31 51.00 quadratic behaviour	2106	Glib/Any 16000 1118 89.00 12.57 51.17 quadratic behaviour
1941	Tk/Any 2000 1860 27.20 66.31 14.00 SEGV with >> 2000 watchers	2107	Tk/Any 2000 1346 20.96 10.75 8.00 SEGV with >> 2000 watchers
1942	POE/Event 2000 6328 109.99 751.67 14.02 via POE::Loop::Event	2108	POE/Any 2000 6951 108.97 795.32 14.24 via POE::Loop::Event
1943	POE/Select 2000 6027 94.54 809.13 579.80 via POE::Loop::Select	2109	POE/Any 2000 6648 94.79 774.40 575.51 via POE::Loop::Select
1944		2110
1945	=head3 Discussion	2111	=head3 Discussion
1946		2112
1947	The benchmark does I<not> measure scalability of the event loop very	2113	The benchmark does I<not> measure scalability of the event loop very
1948	well. For example, a select-based event loop (such as the pure perl one)	2114	well. For example, a select-based event loop (such as the pure perl one)
…		…
1960	benchmark machine, handling an event takes roughly 1600 CPU cycles with	2126	benchmark machine, handling an event takes roughly 1600 CPU cycles with
1961	EV, 3100 CPU cycles with AnyEvent's pure perl loop and almost 3000000 CPU	2127	EV, 3100 CPU cycles with AnyEvent's pure perl loop and almost 3000000 CPU
1962	cycles with POE.	2128	cycles with POE.
1963		2129
1964	C<EV> is the sole leader regarding speed and memory use, which are both	2130	C<EV> is the sole leader regarding speed and memory use, which are both
1965	maximal/minimal, respectively. Even when going through AnyEvent, it uses	2131	maximal/minimal, respectively. When using the L<AE> API there is zero
		2132	overhead (when going through the AnyEvent API create is about 5-6 times
		2133	slower, with other times being equal, so still uses far less memory than
1966	far less memory than any other event loop and is still faster than Event	2134	any other event loop and is still faster than Event natively).
1967	natively.
1968		2135
1969	The pure perl implementation is hit in a few sweet spots (both the	2136	The pure perl implementation is hit in a few sweet spots (both the
1970	constant timeout and the use of a single fd hit optimisations in the perl	2137	constant timeout and the use of a single fd hit optimisations in the perl
1971	interpreter and the backend itself). Nevertheless this shows that it	2138	interpreter and the backend itself). Nevertheless this shows that it
1972	adds very little overhead in itself. Like any select-based backend its	2139	adds very little overhead in itself. Like any select-based backend its
…		…
2046	In this benchmark, we use 10000 socket pairs (20000 sockets), of which 100	2213	In this benchmark, we use 10000 socket pairs (20000 sockets), of which 100
2047	(1%) are active. This mirrors the activity of large servers with many	2214	(1%) are active. This mirrors the activity of large servers with many
2048	connections, most of which are idle at any one point in time.	2215	connections, most of which are idle at any one point in time.
2049		2216
2050	Source code for this benchmark is found as F<eg/bench2> in the AnyEvent	2217	Source code for this benchmark is found as F<eg/bench2> in the AnyEvent
2051	distribution.	2218	distribution. It uses the L<AE> interface, which makes a real difference
		2219	for the EV and Perl backends only.
2052		2220
2053	=head3 Explanation of the columns	2221	=head3 Explanation of the columns
2054		2222
2055	I<sockets> is the number of sockets, and twice the number of "servers" (as	2223	I<sockets> is the number of sockets, and twice the number of "servers" (as
2056	each server has a read and write socket end).	2224	each server has a read and write socket end).
…		…
2064	a new one that moves the timeout into the future.	2232	a new one that moves the timeout into the future.
2065		2233
2066	=head3 Results	2234	=head3 Results
2067		2235
2068	name sockets create request	2236	name sockets create request
2069	EV 20000 69.01 11.16	2237	EV 20000 62.66 7.99
2070	Perl 20000 73.32 35.87	2238	Perl 20000 68.32 32.64
2071	IOAsync 20000 157.00 98.14 epoll	2239	IOAsync 20000 174.06 101.15 epoll
2072	IOAsync 20000 159.31 616.06 poll	2240	IOAsync 20000 174.67 610.84 poll
2073	Event 20000 212.62 257.32	2241	Event 20000 202.69 242.91
2074	Glib 20000 651.16 1896.30	2242	Glib 20000 557.01 1689.52
2075	POE 20000 349.67 12317.24 uses POE::Loop::Event	2243	POE 20000 341.54 12086.32 uses POE::Loop::Event
2076		2244
2077	=head3 Discussion	2245	=head3 Discussion
2078		2246
2079	This benchmark I<does> measure scalability and overall performance of the	2247	This benchmark I<does> measure scalability and overall performance of the
2080	particular event loop.	2248	particular event loop.
…		…
2390	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.	2558	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.
2391		2559
2392	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,	2560	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,
2393	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,	2561	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,
2394	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,	2562	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,
2395	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>.	2563	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>.
2396		2564
2397	Non-blocking file handles, sockets, TCP clients and	2565	Non-blocking file handles, sockets, TCP clients and
2398	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.	2566	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.
2399		2567
2400	Asynchronous DNS: L<AnyEvent::DNS>.	2568	Asynchronous DNS: L<AnyEvent::DNS>.

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Comparing AnyEvent/lib/AnyEvent.pm (file contents): Revision 1.248 by root, Sat Jul 18 22:27:10 2009 UTC vs. Revision 1.279 by root, Sun Aug 9 16:05:11 2009 UTC

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Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.248 by root, Sat Jul 18 22:27:10 2009 UTC vs.
Revision 1.279 by root, Sun Aug 9 16:05:11 2009 UTC