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

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.242 by root, Fri Jul 17 22:05:12 2009 UTC vs.
Revision 1.276 by root, Sun Aug 9 10:53:33 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
…		…
368		392
369	This watcher might use C<%SIG> (depending on the event loop used),	393	This watcher might use C<%SIG> (depending on the event loop used),
370	so programs overwriting those signals directly will likely not work	394	so programs overwriting those signals directly will likely not work
371	correctly.	395	correctly.
372		396
		397	Example: exit on SIGINT
		398
		399	my $w = AnyEvent->signal (signal => "INT", cb => sub { exit 1 });
		400
		401	=head3 Signal Races, Delays and Workarounds
		402
373	Also note that many event loops (e.g. Glib, Tk, Qt, IO::Async) do not	403	Many event loops (e.g. Glib, Tk, Qt, IO::Async) do not support attaching
374	support attaching callbacks to signals, which is a pity, as you cannot do	404	callbacks to signals in a generic way, which is a pity, as you cannot
375	race-free signal handling in perl. AnyEvent will try to do it's best, but	405	do race-free signal handling in perl, requiring C libraries for
		406	this. AnyEvent will try to do it's best, which means in some cases,
376	in some cases, signals will be delayed. The maximum time a signal might	407	signals will be delayed. The maximum time a signal might be delayed is
377	be delayed is specified in C<$AnyEvent::MAX_SIGNAL_LATENCY> (default: 10	408	specified in C<$AnyEvent::MAX_SIGNAL_LATENCY> (default: 10 seconds). This
378	seconds). This variable can be changed only before the first signal	409	variable can be changed only before the first signal watcher is created,
379	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
380	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
381	saving. All these problems can be avoided by installing the optional	415	All these problems can be avoided by installing the optional
382	L<Async::Interrupt> module.	416	L<Async::Interrupt> module, which works with most event loops. It will not
383		417	work with inherently broken event loops such as L<Event> or L<Event::Lib>
384	Example: exit on SIGINT	418	(and not with L<POE> currently, as POE does it's own workaround with
385		419	one-second latency). For those, you just have to suffer the delays.
386	my $w = AnyEvent->signal (signal => "INT", cb => sub { exit 1 });
387		420
388	=head2 CHILD PROCESS WATCHERS	421	=head2 CHILD PROCESS WATCHERS
389		422
		423	$w = AnyEvent->child (pid => <process id>, cb => <callback>);
		424
390	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.
391		426
392	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,
393	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
394	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
395	any trace events (stopped/continued).	430	finished and an exit status is available, not on any trace events
		431	(stopped/continued).
396		432
397	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
398	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
399	callback arguments.	435	callback arguments.
400		436
…		…
441	# do something else, then wait for process exit	477	# do something else, then wait for process exit
442	$done->recv;	478	$done->recv;
443		479
444	=head2 IDLE WATCHERS	480	=head2 IDLE WATCHERS
445		481
		482	$w = AnyEvent->idle (cb => <callback>);
		483
446	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
447	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
448	"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
449	attention by the event loop".	487	attention by the event loop".
450		488
…		…
476	});	514	});
477	});	515	});
478		516
479	=head2 CONDITION VARIABLES	517	=head2 CONDITION VARIABLES
480		518
		519	$cv = AnyEvent->condvar;
		520
		521	$cv->send (<list>);
		522	my @res = $cv->recv;
		523
481	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
482	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
483	will actively watch for new events and call your callbacks.	526	will actively watch for new events and call your callbacks.
484		527
485	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
…		…
504	Condition variables are similar to callbacks, except that you can	547	Condition variables are similar to callbacks, except that you can
505	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
506	in time where multiple outstanding events have been processed. And yet	549	in time where multiple outstanding events have been processed. And yet
507	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
508	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
509	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.
510		554
511	Condition variables are very useful to signal that something has finished,	555	Condition variables are very useful to signal that something has finished,
512	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,
513	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
514	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
…		…
746	=item $cb = $cv->cb ($cb->($cv))	790	=item $cb = $cv->cb ($cb->($cv))
747		791
748	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
749	replaces it before doing so.	793	replaces it before doing so.
750		794
751	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)
752	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
753	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>
754	is guaranteed not to block.	798	inside the callback or at any later time is guaranteed not to block.
755		799
756	=back	800	=back
757		801
758	=head1 SUPPORTED EVENT LOOPS/BACKENDS	802	=head1 SUPPORTED EVENT LOOPS/BACKENDS
759		803
…		…
762	=over 4	806	=over 4
763		807
764	=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.
765		809
766	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
767	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
768	that, will fall back to its own pure-perl implementation, which is	812	pure-perl implementation, which is available everywhere as it comes with
769	available everywhere as it comes with AnyEvent itself.	813	AnyEvent itself.
770		814
771	AnyEvent::Impl::EV based on EV (interface to libev, best choice).	815	AnyEvent::Impl::EV based on EV (interface to libev, best choice).
772	AnyEvent::Impl::Event based on Event, very stable, few glitches.
773	AnyEvent::Impl::Perl pure-perl implementation, fast and portable.	816	AnyEvent::Impl::Perl pure-perl implementation, fast and portable.
774		817
775	=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.
776		819
777	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
778	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
779	them. This means that AnyEvent will automatically pick the right backend	822	them. This means that AnyEvent will automatically pick the right backend
780	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
781	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.
782		825
		826	AnyEvent::Impl::Event based on Event, very stable, few glitches.
783	AnyEvent::Impl::Glib based on Glib, slow but very stable.	827	AnyEvent::Impl::Glib based on Glib, slow but very stable.
784	AnyEvent::Impl::Tk based on Tk, very broken.	828	AnyEvent::Impl::Tk based on Tk, very broken.
785	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.	829	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.
786	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.
787		832
788	=item Backends with special needs.	833	=item Backends with special needs.
789		834
790	Qt requires the Qt::Application to be instantiated first, but will	835	Qt requires the Qt::Application to be instantiated first, but will
791	otherwise be picked up automatically. As long as the main program	836	otherwise be picked up automatically. As long as the main program
…		…
865	event module detection too early, for example, L<AnyEvent::AIO> creates	910	event module detection too early, for example, L<AnyEvent::AIO> creates
866	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
867	avoid autodetecting the event module at load time.	912	avoid autodetecting the event module at load time.
868		913
869	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
870	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
871	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;
872		934
873	=item @AnyEvent::post_detect	935	=item @AnyEvent::post_detect
874		936
875	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
876	before or after loading AnyEvent), then they will called directly after	938	before or after loading AnyEvent), then they will called directly after
…		…
1041		1103
1042	=cut	1104	=cut
1043		1105
1044	package AnyEvent;	1106	package AnyEvent;
1045		1107
		1108	# basically a tuned-down version of common::sense
		1109	sub common_sense {
1046	no warnings;	1110	# no warnings
		1111	${^WARNING_BITS} ^= ${^WARNING_BITS};
1047	use strict qw(vars subs);	1112	# use strict vars subs
		1113	$^H \|= 0x00000600;
		1114	}
		1115
		1116	BEGIN { AnyEvent::common_sense }
1048		1117
1049	use Carp ();	1118	use Carp ();
1050		1119
1051	our $VERSION = 4.83;	1120	our $VERSION = 4.92;
1052	our $MODEL;	1121	our $MODEL;
1053		1122
1054	our $AUTOLOAD;	1123	our $AUTOLOAD;
1055	our @ISA;	1124	our @ISA;
1056		1125
…		…
1081	for reverse split /\s,\s/,	1150	for reverse split /\s,\s/,
1082	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";	1151	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";
1083	}	1152	}
1084		1153
1085	my @models = (	1154	my @models = (
1086	[EV:: => AnyEvent::Impl::EV::],	1155	[EV:: => AnyEvent::Impl::EV:: , 1],
1087	[Event:: => AnyEvent::Impl::Event::],
1088	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl::],	1156	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl:: , 1],
1089	# everything below here will not be autoprobed	1157	# everything below here will not (normally) be autoprobed
1090	# as the pureperl backend should work everywhere	1158	# as the pureperl backend should work everywhere
1091	# and is usually faster	1159	# and is usually faster
		1160	[Event:: => AnyEvent::Impl::Event::, 1],
1092	[Glib:: => AnyEvent::Impl::Glib::], # becomes extremely slow with many watchers	1161	[Glib:: => AnyEvent::Impl::Glib:: , 1], # becomes extremely slow with many watchers
1093	[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
1094	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles	1164	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles
1095	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program	1165	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program
1096	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza	1166	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza
1097	[Wx:: => AnyEvent::Impl::POE::],	1167	[Wx:: => AnyEvent::Impl::POE::],
1098	[Prima:: => AnyEvent::Impl::POE::],	1168	[Prima:: => AnyEvent::Impl::POE::],
1099	# 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
1100	# byzantine signal and broken child handling, among others.	1170	# byzantine signal and broken child handling, among others.
1101	# 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
1102	# obvious default class.	1172	# obvious default class.
1103	# [IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program	1173	# [0, IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program
1104	# [IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program	1174	# [0, IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program
1105	# [IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program	1175	# [0, IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program
1106	);	1176	);
1107		1177
1108	our %method = map +($_ => 1),	1178	our %method = map +($_ => 1),
1109	qw(io timer time now now_update signal child idle condvar one_event DESTROY);	1179	qw(io timer time now now_update signal child idle condvar one_event DESTROY);
1110		1180
…		…
1114	my ($cb) = @_;	1184	my ($cb) = @_;
1115		1185
1116	if ($MODEL) {	1186	if ($MODEL) {
1117	$cb->();	1187	$cb->();
1118		1188
1119	1	1189	undef
1120	} else {	1190	} else {
1121	push @post_detect, $cb;	1191	push @post_detect, $cb;
1122		1192
1123	defined wantarray	1193	defined wantarray
1124	? bless \$cb, "AnyEvent::Util::postdetect"	1194	? bless \$cb, "AnyEvent::Util::postdetect"
…		…
1130	@post_detect = grep $_ != ${$_[0]}, @post_detect;	1200	@post_detect = grep $_ != ${$_[0]}, @post_detect;
1131	}	1201	}
1132		1202
1133	sub detect() {	1203	sub detect() {
1134	unless ($MODEL) {	1204	unless ($MODEL) {
1135	no strict 'refs';
1136	local $SIG{__DIE__};	1205	local $SIG{__DIE__};
1137		1206
1138	if ($ENV{PERL_ANYEVENT_MODEL} =~ /^([a-zA-Z]+)$/) {	1207	if ($ENV{PERL_ANYEVENT_MODEL} =~ /^([a-zA-Z]+)$/) {
1139	my $model = "AnyEvent::Impl::$1";	1208	my $model = "AnyEvent::Impl::$1";
1140	if (eval "require $model") {	1209	if (eval "require $model") {
…		…
1157	}	1226	}
1158	}	1227	}
1159	}	1228	}
1160		1229
1161	unless ($MODEL) {	1230	unless ($MODEL) {
1162	# try to load a model	1231	# try to autoload a model
1163
1164	for (@REGISTRY, @models) {	1232	for (@REGISTRY, @models) {
1165	my ($package, $model) = @$_;	1233	my ($package, $model, $autoload) = @$_;
		1234	if (
		1235	$autoload
1166	if (eval "require $package"	1236	and eval "require $package"
1167	and ${"$package\::VERSION"} > 0	1237	and ${"$package\::VERSION"} > 0
1168	and eval "require $model") {	1238	and eval "require $model"
		1239	) {
1169	$MODEL = $model;	1240	$MODEL = $model;
1170	warn "AnyEvent: autoprobed model '$model', using it.\n" if $VERBOSE >= 2;	1241	warn "AnyEvent: autoloaded model '$model', using it.\n" if $VERBOSE >= 2;
1171	last;	1242	last;
1172	}	1243	}
1173	}	1244	}
1174		1245
1175	$MODEL	1246	$MODEL
…		…
1214	or die "AnyEvent->io: cannot dup() filehandle in mode '$poll': $!,";	1285	or die "AnyEvent->io: cannot dup() filehandle in mode '$poll': $!,";
1215		1286
1216	# we assume CLOEXEC is already set by perl in all important cases	1287	# we assume CLOEXEC is already set by perl in all important cases
1217		1288
1218	($fh2, $rw)	1289	($fh2, $rw)
		1290	}
		1291
		1292	#############################################################################
		1293	# "new" API, currently only emulation of it
		1294	#############################################################################
		1295
		1296	package AE;
		1297
		1298	our $VERSION = $AnyEvent::VERSION;
		1299
		1300	sub io($$$) {
		1301	AnyEvent->io (fh => $_[0], poll => $_[1] ? "w" : "r", cb => $_[2])
		1302	}
		1303
		1304	sub timer($$$) {
		1305	AnyEvent->timer (after => $_[0], interval => $_[1], cb => $_[2]);
		1306	}
		1307
		1308	sub signal($$) {
		1309	AnyEvent->signal (signal => $_[0], cb => $_[1]);
		1310	}
		1311
		1312	sub child($$) {
		1313	AnyEvent->child (pid => $_[0], cb => $_[1]);
		1314	}
		1315
		1316	sub idle($) {
		1317	AnyEvent->idle (cb => $_[0]);
		1318	}
		1319
		1320	sub cv(;&) {
		1321	AnyEvent->condvar (@_ ? (cb => $_[0]) : ())
		1322	}
		1323
		1324	sub now() {
		1325	AnyEvent->now
		1326	}
		1327
		1328	sub now_update() {
		1329	AnyEvent->now_update
		1330	}
		1331
		1332	sub time() {
		1333	AnyEvent->time
1219	}	1334	}
1220		1335
1221	package AnyEvent::Base;	1336	package AnyEvent::Base;
1222		1337
1223	# default implementations for many methods	1338	# default implementations for many methods
…		…
1247	}	1362	}
1248		1363
1249	# default implementation for ->signal	1364	# default implementation for ->signal
1250		1365
1251	our $HAVE_ASYNC_INTERRUPT;	1366	our $HAVE_ASYNC_INTERRUPT;
		1367
		1368	sub _have_async_interrupt() {
		1369	$HAVE_ASYNC_INTERRUPT = 1*(!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT}
		1370	&& eval "use Async::Interrupt 1.0 (); 1")
		1371	unless defined $HAVE_ASYNC_INTERRUPT;
		1372
		1373	$HAVE_ASYNC_INTERRUPT
		1374	}
		1375
1252	our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);	1376	our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);
1253	our (%SIG_ASY, %SIG_ASY_W);	1377	our (%SIG_ASY, %SIG_ASY_W);
1254	our ($SIG_COUNT, $SIG_TW);	1378	our ($SIG_COUNT, $SIG_TW);
1255		1379
1256	sub _signal_exec {	1380	sub _signal_exec {
…		…
1264	$_->() for values %{ $SIG_CB{$_} \|\| {} };	1388	$_->() for values %{ $SIG_CB{$_} \|\| {} };
1265	}	1389	}
1266	}	1390	}
1267	}	1391	}
1268		1392
		1393	# install a dummy wakeup watcher to reduce signal catching latency
1269	sub _signal {	1394	sub _sig_add() {
1270	my (undef, %arg) = @_;	1395	unless ($SIG_COUNT++) {
		1396	# try to align timer on a full-second boundary, if possible
		1397	my $NOW = AE::now;
1271		1398
1272	my $signal = uc $arg{signal}	1399	$SIG_TW = AE::timer
1273	or Carp::croak "required option 'signal' is missing";	1400	$MAX_SIGNAL_LATENCY - ($NOW - int $NOW),
1274		1401	$MAX_SIGNAL_LATENCY,
1275	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};	1402	sub { } # just for the PERL_ASYNC_CHECK
1276
1277	if ($HAVE_ASYNC_INTERRUPT) {
1278	# async::interrupt
1279
1280	$SIG_ASY{$signal} \|\|= do {
1281	my $asy = new Async::Interrupt
1282	cb => sub { undef $SIG_EV{$signal} },
1283	signal => $signal,
1284	pipe => [$SIGPIPE_R->filenos],
1285	;
1286	$asy->pipe_autodrain (0);
1287
1288	$asy
1289	};	1403	;
1290
1291	} else {
1292	# pure perl
1293
1294	$SIG{$signal} \|\|= sub {
1295	local $!;
1296	syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;
1297	undef $SIG_EV{$signal};
1298	};
1299
1300	# can't do signal processing without introducing races in pure perl,
1301	# so limit the signal latency.
1302	++$SIG_COUNT;
1303	$SIG_TW \|\|= AnyEvent->timer (
1304	after => $MAX_SIGNAL_LATENCY,
1305	interval => $MAX_SIGNAL_LATENCY,
1306	cb => sub { }, # just for the PERL_ASYNC_CHECK
1307	);
1308	}	1404	}
1309
1310	bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
1311	}	1405	}
1312		1406
1313	sub signal {	1407	sub _sig_del {
1314	# probe for availability of Async::Interrupt
1315	if (!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT} && eval "use Async::Interrupt 0.6 (); 1") {
1316	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
1317
1318	$HAVE_ASYNC_INTERRUPT = 1;
1319	$SIGPIPE_R = new Async::Interrupt::EventPipe;
1320	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R->fileno, poll => "r", cb => \&_signal_exec);
1321
1322	} else {
1323	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;
1324
1325	require Fcntl;
1326
1327	if (AnyEvent::WIN32) {
1328	require AnyEvent::Util;
1329
1330	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
1331	AnyEvent::Util::fh_nonblocking ($SIGPIPE_R) if $SIGPIPE_R;
1332	AnyEvent::Util::fh_nonblocking ($SIGPIPE_W) if $SIGPIPE_W; # just in case
1333	} else {
1334	pipe $SIGPIPE_R, $SIGPIPE_W;
1335	fcntl $SIGPIPE_R, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_R;
1336	fcntl $SIGPIPE_W, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_W; # just in case
1337
1338	# not strictly required, as $^F is normally 2, but let's make sure...
1339	fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
1340	fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
1341	}
1342
1343	$SIGPIPE_R
1344	or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n";
1345
1346	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R, poll => "r", cb => \&_signal_exec);
1347	}
1348
1349	*signal = \&_signal;
1350	&signal
1351	}
1352
1353	sub AnyEvent::Base::signal::DESTROY {
1354	my ($signal, $cb) = @{$_[0]};
1355
1356	undef $SIG_TW	1408	undef $SIG_TW
1357	unless --$SIG_COUNT;	1409	unless --$SIG_COUNT;
		1410	}
1358		1411
		1412	our $_sig_name_init; $_sig_name_init = sub {
		1413	eval q{ # poor man's autoloading
		1414	undef $_sig_name_init;
		1415
		1416	if (_have_async_interrupt) {
		1417	*sig2num = \&Async::Interrupt::sig2num;
		1418	*sig2name = \&Async::Interrupt::sig2name;
		1419	} else {
		1420	require Config;
		1421
		1422	my %signame2num;
		1423	@signame2num{ split ' ', $Config::Config{sig_name} }
		1424	= split ' ', $Config::Config{sig_num};
		1425
		1426	my @signum2name;
		1427	@signum2name[values %signame2num] = keys %signame2num;
		1428
		1429	*sig2num = sub($) {
		1430	$_[0] > 0 ? shift : $signame2num{+shift}
		1431	};
		1432	*sig2name = sub ($) {
		1433	$_[0] > 0 ? $signum2name[+shift] : shift
		1434	};
		1435	}
		1436	};
		1437	die if $@;
		1438	};
		1439
		1440	sub sig2num ($) { &$_sig_name_init; &sig2num }
		1441	sub sig2name($) { &$_sig_name_init; &sig2name }
		1442
		1443	sub signal {
		1444	eval q{ # poor man's autoloading {}
		1445	# probe for availability of Async::Interrupt
		1446	if (_have_async_interrupt) {
		1447	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
		1448
		1449	$SIGPIPE_R = new Async::Interrupt::EventPipe;
		1450	$SIG_IO = AE::io $SIGPIPE_R->fileno, 0, \&_signal_exec;
		1451
		1452	} else {
		1453	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;
		1454
		1455	require Fcntl;
		1456
		1457	if (AnyEvent::WIN32) {
		1458	require AnyEvent::Util;
		1459
		1460	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
		1461	AnyEvent::Util::fh_nonblocking ($SIGPIPE_R, 1) if $SIGPIPE_R;
		1462	AnyEvent::Util::fh_nonblocking ($SIGPIPE_W, 1) if $SIGPIPE_W; # just in case
		1463	} else {
		1464	pipe $SIGPIPE_R, $SIGPIPE_W;
		1465	fcntl $SIGPIPE_R, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_R;
		1466	fcntl $SIGPIPE_W, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_W; # just in case
		1467
		1468	# not strictly required, as $^F is normally 2, but let's make sure...
		1469	fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
		1470	fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
		1471	}
		1472
		1473	$SIGPIPE_R
		1474	or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n";
		1475
		1476	$SIG_IO = AE::io $SIGPIPE_R, 0, \&_signal_exec;
		1477	}
		1478
		1479	*signal = sub {
		1480	my (undef, %arg) = @_;
		1481
		1482	my $signal = uc $arg{signal}
		1483	or Carp::croak "required option 'signal' is missing";
		1484
		1485	if ($HAVE_ASYNC_INTERRUPT) {
		1486	# async::interrupt
		1487
		1488	$signal = sig2num $signal;
		1489	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		1490
		1491	$SIG_ASY{$signal} \|\|= new Async::Interrupt
		1492	cb => sub { undef $SIG_EV{$signal} },
		1493	signal => $signal,
		1494	pipe => [$SIGPIPE_R->filenos],
		1495	pipe_autodrain => 0,
		1496	;
		1497
		1498	} else {
		1499	# pure perl
		1500
		1501	# AE::Util has been loaded in signal
		1502	$signal = sig2name $signal;
		1503	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		1504
		1505	$SIG{$signal} \|\|= sub {
		1506	local $!;
		1507	syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;
		1508	undef $SIG_EV{$signal};
		1509	};
		1510
		1511	# can't do signal processing without introducing races in pure perl,
		1512	# so limit the signal latency.
		1513	_sig_add;
		1514	}
		1515
		1516	bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
		1517	};
		1518
		1519	*AnyEvent::Base::signal::DESTROY = sub {
		1520	my ($signal, $cb) = @{$_[0]};
		1521
		1522	_sig_del;
		1523
1359	delete $SIG_CB{$signal}{$cb};	1524	delete $SIG_CB{$signal}{$cb};
1360		1525
		1526	$HAVE_ASYNC_INTERRUPT
		1527	? delete $SIG_ASY{$signal}
1361	# delete doesn't work with older perls - they then	1528	: # delete doesn't work with older perls - they then
1362	# print weird messages, or just unconditionally exit	1529	# print weird messages, or just unconditionally exit
1363	# instead of getting the default action.	1530	# instead of getting the default action.
1364	undef $SIG{$signal}	1531	undef $SIG{$signal}
1365	unless keys %{ $SIG_CB{$signal} };	1532	unless keys %{ $SIG_CB{$signal} };
		1533	};
		1534	};
		1535	die if $@;
		1536	&signal
1366	}	1537	}
1367		1538
1368	# default implementation for ->child	1539	# default implementation for ->child
1369		1540
1370	our %PID_CB;	1541	our %PID_CB;
1371	our $CHLD_W;	1542	our $CHLD_W;
1372	our $CHLD_DELAY_W;	1543	our $CHLD_DELAY_W;
1373	our $WNOHANG;	1544	our $WNOHANG;
1374		1545
		1546	sub _emit_childstatus($$) {
		1547	my (undef, $rpid, $rstatus) = @_;
		1548
		1549	$_->($rpid, $rstatus)
		1550	for values %{ $PID_CB{$rpid} \|\| {} },
		1551	values %{ $PID_CB{0} \|\| {} };
		1552	}
		1553
1375	sub _sigchld {	1554	sub _sigchld {
		1555	my $pid;
		1556
		1557	AnyEvent->_emit_childstatus ($pid, $?)
1376	while (0 < (my $pid = waitpid -1, $WNOHANG)) {	1558	while ($pid = waitpid -1, $WNOHANG) > 0;
1377	$_->($pid, $?)
1378	for values %{ $PID_CB{$pid} \|\| {} },
1379	values %{ $PID_CB{0} \|\| {} };
1380	}
1381	}	1559	}
1382		1560
1383	sub child {	1561	sub child {
1384	my (undef, %arg) = @_;	1562	my (undef, %arg) = @_;
1385		1563
1386	defined (my $pid = $arg{pid} + 0)	1564	defined (my $pid = $arg{pid} + 0)
1387	or Carp::croak "required option 'pid' is missing";	1565	or Carp::croak "required option 'pid' is missing";
1388		1566
1389	$PID_CB{$pid}{$arg{cb}} = $arg{cb};	1567	$PID_CB{$pid}{$arg{cb}} = $arg{cb};
1390		1568
		1569	# WNOHANG is almost cetrainly 1 everywhere
		1570	$WNOHANG \|\|= $^O =~ /^(?:openbsd\|netbsd\|linux\|freebsd\|cygwin\|MSWin32)$/
		1571	? 1
1391	$WNOHANG \|\|= eval { local $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } \|\| 1;	1572	: eval { local $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } \|\| 1;
1392		1573
1393	unless ($CHLD_W) {	1574	unless ($CHLD_W) {
1394	$CHLD_W = AnyEvent->signal (signal => 'CHLD', cb => \&_sigchld);	1575	$CHLD_W = AE::signal CHLD => \&_sigchld;
1395	# child could be a zombie already, so make at least one round	1576	# child could be a zombie already, so make at least one round
1396	&_sigchld;	1577	&_sigchld;
1397	}	1578	}
1398		1579
1399	bless [$pid, $arg{cb}], "AnyEvent::Base::child"	1580	bless [$pid, $arg{cb}], "AnyEvent::Base::child"
…		…
1425	# never use more then 50% of the time for the idle watcher,	1606	# never use more then 50% of the time for the idle watcher,
1426	# within some limits	1607	# within some limits
1427	$w = 0.0001 if $w < 0.0001;	1608	$w = 0.0001 if $w < 0.0001;
1428	$w = 5 if $w > 5;	1609	$w = 5 if $w > 5;
1429		1610
1430	$w = AnyEvent->timer (after => $w, cb => $rcb);	1611	$w = AE::timer $w, 0, $rcb;
1431	} else {	1612	} else {
1432	# clean up...	1613	# clean up...
1433	undef $w;	1614	undef $w;
1434	undef $rcb;	1615	undef $rcb;
1435	}	1616	}
1436	};	1617	};
1437		1618
1438	$w = AnyEvent->timer (after => 0.05, cb => $rcb);	1619	$w = AE::timer 0.05, 0, $rcb;
1439		1620
1440	bless \\$cb, "AnyEvent::Base::idle"	1621	bless \\$cb, "AnyEvent::Base::idle"
1441	}	1622	}
1442		1623
1443	sub AnyEvent::Base::idle::DESTROY {	1624	sub AnyEvent::Base::idle::DESTROY {
…		…
1448		1629
1449	our @ISA = AnyEvent::CondVar::Base::;	1630	our @ISA = AnyEvent::CondVar::Base::;
1450		1631
1451	package AnyEvent::CondVar::Base;	1632	package AnyEvent::CondVar::Base;
1452		1633
1453	use overload	1634	#use overload
1454	'&{}' => sub { my $self = shift; sub { $self->send (@_) } },	1635	# '&{}' => sub { my $self = shift; sub { $self->send (@_) } },
1455	fallback => 1;	1636	# fallback => 1;
		1637
		1638	# save 300+ kilobytes by dirtily hardcoding overloading
		1639	${"AnyEvent::CondVar::Base::OVERLOAD"}{dummy}++; # Register with magic by touching.
		1640	*{'AnyEvent::CondVar::Base::()'} = sub { }; # "Make it findable via fetchmethod."
		1641	*{'AnyEvent::CondVar::Base::(&{}'} = sub { my $self = shift; sub { $self->send (@_) } }; # &{}
		1642	${'AnyEvent::CondVar::Base::()'} = 1; # fallback
1456		1643
1457	our $WAITING;	1644	our $WAITING;
1458		1645
1459	sub _send {	1646	sub _send {
1460	# nop	1647	# nop
…		…
1491	Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak};	1678	Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak};
1492	wantarray ? @{ $_[0]{_ae_sent} } : $_[0]{_ae_sent}[0]	1679	wantarray ? @{ $_[0]{_ae_sent} } : $_[0]{_ae_sent}[0]
1493	}	1680	}
1494		1681
1495	sub cb {	1682	sub cb {
1496	$_[0]{_ae_cb} = $_[1] if @_ > 1;	1683	my $cv = shift;
		1684
		1685	@_
		1686	and $cv->{_ae_cb} = shift
		1687	and $cv->{_ae_sent}
		1688	and (delete $cv->{_ae_cb})->($cv);
		1689
1497	$_[0]{_ae_cb}	1690	$cv->{_ae_cb}
1498	}	1691	}
1499		1692
1500	sub begin {	1693	sub begin {
1501	++$_[0]{_ae_counter};	1694	++$_[0]{_ae_counter};
1502	$_[0]{_ae_end_cb} = $_[1] if @_ > 1;	1695	$_[0]{_ae_end_cb} = $_[1] if @_ > 1;
…		…
1551	C<PERL_ANYEVENT_MODEL>.	1744	C<PERL_ANYEVENT_MODEL>.
1552		1745
1553	When set to C<2> or higher, cause AnyEvent to report to STDERR which event	1746	When set to C<2> or higher, cause AnyEvent to report to STDERR which event
1554	model it chooses.	1747	model it chooses.
1555		1748
		1749	When set to C<8> or higher, then AnyEvent will report extra information on
		1750	which optional modules it loads and how it implements certain features.
		1751
1556	=item C<PERL_ANYEVENT_STRICT>	1752	=item C<PERL_ANYEVENT_STRICT>
1557		1753
1558	AnyEvent does not do much argument checking by default, as thorough	1754	AnyEvent does not do much argument checking by default, as thorough
1559	argument checking is very costly. Setting this variable to a true value	1755	argument checking is very costly. Setting this variable to a true value
1560	will cause AnyEvent to load C<AnyEvent::Strict> and then to thoroughly	1756	will cause AnyEvent to load C<AnyEvent::Strict> and then to thoroughly
1561	check the arguments passed to most method calls. If it finds any problems,	1757	check the arguments passed to most method calls. If it finds any problems,
1562	it will croak.	1758	it will croak.
1563		1759
1564	In other words, enables "strict" mode.	1760	In other words, enables "strict" mode.
1565		1761
1566	Unlike C<use strict>, it is definitely recommended to keep it off in	1762	Unlike C<use strict> (or it's modern cousin, C<< use L<common::sense>
1567	production. Keeping C<PERL_ANYEVENT_STRICT=1> in your environment while	1763	>>, it is definitely recommended to keep it off in production. Keeping
1568	developing programs can be very useful, however.	1764	C<PERL_ANYEVENT_STRICT=1> in your environment while developing programs
		1765	can be very useful, however.
1569		1766
1570	=item C<PERL_ANYEVENT_MODEL>	1767	=item C<PERL_ANYEVENT_MODEL>
1571		1768
1572	This can be used to specify the event model to be used by AnyEvent, before	1769	This can be used to specify the event model to be used by AnyEvent, before
1573	auto detection and -probing kicks in. It must be a string consisting	1770	auto detection and -probing kicks in. It must be a string consisting
…		…
1635		1832
1636	When neither C<ca_file> nor C<ca_path> was specified during	1833	When neither C<ca_file> nor C<ca_path> was specified during
1637	L<AnyEvent::TLS> context creation, and either of these environment	1834	L<AnyEvent::TLS> context creation, and either of these environment
1638	variables exist, they will be used to specify CA certificate locations	1835	variables exist, they will be used to specify CA certificate locations
1639	instead of a system-dependent default.	1836	instead of a system-dependent default.
		1837
		1838	=item C<PERL_ANYEVENT_AVOID_GUARD> and C<PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT>
		1839
		1840	When these are set to C<1>, then the respective modules are not
		1841	loaded. Mostly good for testing AnyEvent itself.
1640		1842
1641	=back	1843	=back
1642		1844
1643	=head1 SUPPLYING YOUR OWN EVENT MODEL INTERFACE	1845	=head1 SUPPLYING YOUR OWN EVENT MODEL INTERFACE
1644		1846
…		…
2231		2433
2232	This slightly arcane module is used to implement fast signal handling: To	2434	This slightly arcane module is used to implement fast signal handling: To
2233	my knowledge, there is no way to do completely race-free and quick	2435	my knowledge, there is no way to do completely race-free and quick
2234	signal handling in pure perl. To ensure that signals still get	2436	signal handling in pure perl. To ensure that signals still get
2235	delivered, AnyEvent will start an interval timer to wake up perl (and	2437	delivered, AnyEvent will start an interval timer to wake up perl (and
2236	catch the signals) with soemd elay (default is 10 seconds, look for	2438	catch the signals) with some delay (default is 10 seconds, look for
2237	C<$AnyEvent::MAX_SIGNAL_LATENCY>).	2439	C<$AnyEvent::MAX_SIGNAL_LATENCY>).
2238		2440
2239	If this module is available, then it will be used to implement signal	2441	If this module is available, then it will be used to implement signal
2240	catching, which means that signals will not be delayed, and the event loop	2442	catching, which means that signals will not be delayed, and the event loop
2241	will not be interrupted regularly, which is more efficient (And good for	2443	will not be interrupted regularly, which is more efficient (And good for
2242	battery life on laptops).	2444	battery life on laptops).
2243		2445
2244	This affects not just the pure-perl event loop, but also other event loops	2446	This affects not just the pure-perl event loop, but also other event loops
2245	that have no signal handling on their own (e.g. Glib, Tk, Qt).	2447	that have no signal handling on their own (e.g. Glib, Tk, Qt).
		2448
		2449	Some event loops (POE, Event, Event::Lib) offer signal watchers natively,
		2450	and either employ their own workarounds (POE) or use AnyEvent's workaround
		2451	(using C<$AnyEvent::MAX_SIGNAL_LATENCY>). Installing L<Async::Interrupt>
		2452	does nothing for those backends.
2246		2453
2247	=item L<EV>	2454	=item L<EV>
2248		2455
2249	This module isn't really "optional", as it is simply one of the backend	2456	This module isn't really "optional", as it is simply one of the backend
2250	event loops that AnyEvent can use. However, it is simply the best event	2457	event loops that AnyEvent can use. However, it is simply the best event
…		…
2264		2471
2265	=item L<JSON> and L<JSON::XS>	2472	=item L<JSON> and L<JSON::XS>
2266		2473
2267	This module is required when you want to read or write JSON data via	2474	This module is required when you want to read or write JSON data via
2268	L<AnyEvent::Handle>. It is also written in pure-perl, but can take	2475	L<AnyEvent::Handle>. It is also written in pure-perl, but can take
2269	advantage of the ulta-high-speed L<JSON::XS> module when it is installed.	2476	advantage of the ultra-high-speed L<JSON::XS> module when it is installed.
2270		2477
2271	In fact, L<AnyEvent::Handle> will use L<JSON::XS> by default if it is	2478	In fact, L<AnyEvent::Handle> will use L<JSON::XS> by default if it is
2272	installed.	2479	installed.
2273		2480
2274	=item L<Net::SSLeay>	2481	=item L<Net::SSLeay>
…		…
2341	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.	2548	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.
2342		2549
2343	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,	2550	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,
2344	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,	2551	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,
2345	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,	2552	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,
2346	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>.	2553	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>.
2347		2554
2348	Non-blocking file handles, sockets, TCP clients and	2555	Non-blocking file handles, sockets, TCP clients and
2349	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.	2556	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.
2350		2557
2351	Asynchronous DNS: L<AnyEvent::DNS>.	2558	Asynchronous DNS: L<AnyEvent::DNS>.

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Comparing AnyEvent/lib/AnyEvent.pm (file contents): Revision 1.242 by root, Fri Jul 17 22:05:12 2009 UTC vs. Revision 1.276 by root, Sun Aug 9 10:53:33 2009 UTC

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Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.242 by root, Fri Jul 17 22:05:12 2009 UTC vs.
Revision 1.276 by root, Sun Aug 9 10:53:33 2009 UTC