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

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.4 by root, Thu Dec 1 22:04:50 2005 UTC vs.
Revision 1.21 by root, Mon Dec 11 20:36:50 2006 UTC

…		…
1	=head1 NAME	1	=head1 NAME
2		2
3	AnyEvent - provide framework for multiple event loops	3	AnyEvent - provide framework for multiple event loops
4		4
5	Event, Coro, Glib, Tk - various supported event loops	5	Event, Coro, Glib, Tk, Perl - various supported event loops
6		6
7	=head1 SYNOPSIS	7	=head1 SYNOPSIS
8		8
9	use AnyEvent;	9	use AnyEvent;
10		10
11	my $w = AnyEvent->timer (fh => ..., poll => "[rw]+", cb => sub {	11	my $w = AnyEvent->io (fh => $fh, poll => "r\|w", cb => sub {
12	my ($poll_got) = @_;
13	...	12	...
14	});	13	});
		14
15	my $w = AnyEvent->io (after => $seconds, cb => sub {	15	my $w = AnyEvent->timer (after => $seconds, cb => sub {
16	...	16	...
17	});	17	});
18		18
19	# watchers get canceled whenever $w is destroyed	19	my $w = AnyEvent->condvar; # stores wether a condition was flagged
20	# only one watcher per $fh and $poll type is allowed
21	# (i.e. on a socket you cna have one r + one w or one rw
22	# watcher, not any more.
23	# timers can only be used once
24
25	my $w = AnyEvent->condvar; # kind of main loop replacement
26	# can only be used once
27	$w->wait; # enters main loop till $condvar gets ->send	20	$w->wait; # enters "main loop" till $condvar gets ->broadcast
28	$w->broadcast; # wake up waiting and future wait's	21	$w->broadcast; # wake up current and all future wait's
29		22
30	=head1 DESCRIPTION	23	=head1 DESCRIPTION
31		24
32	L<AnyEvent> provides an identical interface to multiple event loops. This	25	L<AnyEvent> provides an identical interface to multiple event loops. This
33	allows module authors to utilizy an event loop without forcing module	26	allows module authors to utilise an event loop without forcing module
34	users to use the same event loop (as only a single event loop can coexist	27	users to use the same event loop (as only a single event loop can coexist
35	peacefully at any one time).	28	peacefully at any one time).
36		29
37	The interface itself is vaguely similar but not identical to the Event	30	The interface itself is vaguely similar but not identical to the Event
38	module.	31	module.
40	On the first call of any method, the module tries to detect the currently	33	On the first call of any method, the module tries to detect the currently
41	loaded event loop by probing wether any of the following modules is	34	loaded event loop by probing wether any of the following modules is
42	loaded: L<Coro::Event>, L<Event>, L<Glib>, L<Tk>. The first one found is	35	loaded: L<Coro::Event>, L<Event>, L<Glib>, L<Tk>. The first one found is
43	used. If none is found, the module tries to load these modules in the	36	used. If none is found, the module tries to load these modules in the
44	order given. The first one that could be successfully loaded will be	37	order given. The first one that could be successfully loaded will be
45	used. If still none could be found, it will issue an error.	38	used. If still none could be found, AnyEvent will fall back to a pure-perl
		39	event loop, which is also not very efficient.
		40
		41	Because AnyEvent first checks for modules that are already loaded, loading
		42	an Event model explicitly before first using AnyEvent will likely make
		43	that model the default. For example:
		44
		45	use Tk;
		46	use AnyEvent;
		47
		48	# .. AnyEvent will likely default to Tk
		49
		50	The pure-perl implementation of AnyEvent is called
		51	C<AnyEvent::Impl::Perl>. Like other event modules you can load it
		52	explicitly.
		53
		54	=head1 WATCHERS
		55
		56	AnyEvent has the central concept of a I<watcher>, which is an object that
		57	stores relevant data for each kind of event you are waiting for, such as
		58	the callback to call, the filehandle to watch, etc.
		59
		60	These watchers are normal Perl objects with normal Perl lifetime. After
		61	creating a watcher it will immediately "watch" for events and invoke
		62	the callback. To disable the watcher you have to destroy it (e.g. by
		63	setting the variable that stores it to C<undef> or otherwise deleting all
		64	references to it).
		65
		66	All watchers are created by calling a method on the C<AnyEvent> class.
		67
		68	=head2 IO WATCHERS
		69
		70	You can create I/O watcher by calling the C<< AnyEvent->io >> method with
		71	the following mandatory arguments:
		72
		73	C<fh> the Perl I<filehandle> (not filedescriptor) to watch for
		74	events. C<poll> must be a string that is either C<r> or C<w>, that creates
		75	a watcher waiting for "r"eadable or "w"ritable events. C<cb> teh callback
		76	to invoke everytime the filehandle becomes ready.
		77
		78	Only one io watcher per C<fh> and C<poll> combination is allowed (i.e. on
		79	a socket you can have one r + one w, not any more (limitation comes from
		80	Tk - if you are sure you are not using Tk this limitation is gone).
		81
		82	Filehandles will be kept alive, so as long as the watcher exists, the
		83	filehandle exists, too.
		84
		85	Example:
		86
		87	# wait for readability of STDIN, then read a line and disable the watcher
		88	my $w; $w = AnyEvent->io (fh => \*STDIN, poll => 'r', cb => sub {
		89	chomp (my $input = <STDIN>);
		90	warn "read: $input\n";
		91	undef $w;
		92	});
		93
		94	=head2 TIME WATCHERS
		95
		96	You can create a time watcher by calling the C<< AnyEvent->timer >>
		97	method with the following mandatory arguments:
		98
		99	C<after> after how many seconds (fractions are supported) should the timer
		100	activate. C<cb> the callback to invoke.
		101
		102	The timer callback will be invoked at most once: if you want a repeating
		103	timer you have to create a new watcher (this is a limitation by both Tk
		104	and Glib).
		105
		106	Example:
		107
		108	# fire an event after 7.7 seconds
		109	my $w = AnyEvent->timer (after => 7.7, cb => sub {
		110	warn "timeout\n";
		111	});
		112
		113	# to cancel the timer:
		114	undef $w
		115
		116	=head2 CONDITION WATCHERS
		117
		118	Condition watchers can be created by calling the C<< AnyEvent->condvar >>
		119	method without any arguments.
		120
		121	A condition watcher watches for a condition - precisely that the C<<
		122	->broadcast >> method has been called.
		123
		124	The watcher has only two methods:
46		125
47	=over 4	126	=over 4
48		127
		128	=item $cv->wait
		129
		130	Wait (blocking if necessary) until the C<< ->broadcast >> method has been
		131	called on c<$cv>, while servicing other watchers normally.
		132
		133	Not all event models support a blocking wait - some die in that case, so
		134	if you are using this from a module, never require a blocking wait, but
		135	let the caller decide wether the call will block or not (for example,
		136	by coupling condition variables with some kind of request results and
		137	supporting callbacks so the caller knows that getting the result will not
		138	block, while still suppporting blockign waits if the caller so desires).
		139
		140	You can only wait once on a condition - additional calls will return
		141	immediately.
		142
		143	=item $cv->broadcast
		144
		145	Flag the condition as ready - a running C<< ->wait >> and all further
		146	calls to C<wait> will return after this method has been called. If nobody
		147	is waiting the broadcast will be remembered..
		148
		149	Example:
		150
		151	# wait till the result is ready
		152	my $result_ready = AnyEvent->condvar;
		153
		154	# do something such as adding a timer
		155	# or socket watcher the calls $result_ready->broadcast
		156	# when the "result" is ready.
		157
		158	$result_ready->wait;
		159
		160	=back
		161
		162	=head2 SIGNAL WATCHERS
		163
		164	You can listen for signals using a signal watcher, C<signal> is the signal
		165	I<name> without any C<SIG> prefix. Multiple signals events can be clumped
		166	together into one callback invocation, and callbakc invocation might or
		167	might not be asynchronous.
		168
		169	These watchers might use C<%SIG>, so programs overwriting those signals
		170	directly will likely not work correctly.
		171
		172	Example: exit on SIGINT
		173
		174	my $w = AnyEvent->signal (signal => "INT", cb => sub { exit 1 });
		175
		176	=head2 CHILD PROCESS WATCHERS
		177
		178	You can also listen for the status of a child process specified by the
		179	C<pid> argument. The watcher will only trigger once. This works by
		180	installing a signal handler for C<SIGCHLD>.
		181
		182	Example: wait for pid 1333
		183
		184	my $w = AnyEvent->child (pid => 1333, cb => sub { warn "exit status $?" });
		185
		186	=head1 GLOBALS
		187
		188	=over 4
		189
		190	=item $AnyEvent::MODEL
		191
		192	Contains C<undef> until the first watcher is being created. Then it
		193	contains the event model that is being used, which is the name of the
		194	Perl class implementing the model. This class is usually one of the
		195	C<AnyEvent::Impl:xxx> modules, but can be any other class in the case
		196	AnyEvent has been extended at runtime (e.g. in I<rxvt-unicode>).
		197
		198	The known classes so far are:
		199
		200	AnyEvent::Impl::Coro based on Coro::Event, best choise.
		201	AnyEvent::Impl::Event based on Event, also best choice :)
		202	AnyEvent::Impl::Glib based on Glib, second-best choice.
		203	AnyEvent::Impl::Tk based on Tk, very bad choice.
		204	AnyEvent::Impl::Perl pure-perl implementation, inefficient.
		205
		206	=item AnyEvent::detect
		207
		208	Returns C<$AnyEvent::MODEL>, forcing autodetection of the event model if
		209	necessary. You should only call this function right before you would have
		210	created an AnyEvent watcher anyway, that is, very late at runtime.
		211
		212	=back
		213
		214	=head1 WHAT TO DO IN A MODULE
		215
		216	As a module author, you should "use AnyEvent" and call AnyEvent methods
		217	freely, but you should not load a specific event module or rely on it.
		218
		219	Be careful when you create watchers in the module body - Anyevent will
		220	decide which event module to use as soon as the first method is called, so
		221	by calling AnyEvent in your module body you force the user of your module
		222	to load the event module first.
		223
		224	=head1 WHAT TO DO IN THE MAIN PROGRAM
		225
		226	There will always be a single main program - the only place that should
		227	dictate which event model to use.
		228
		229	If it doesn't care, it can just "use AnyEvent" and use it itself, or not
		230	do anything special and let AnyEvent decide which implementation to chose.
		231
		232	If the main program relies on a specific event model (for example, in Gtk2
		233	programs you have to rely on either Glib or Glib::Event), you should load
		234	it before loading AnyEvent or any module that uses it, generally, as early
		235	as possible. The reason is that modules might create watchers when they
		236	are loaded, and AnyEvent will decide on the event model to use as soon as
		237	it creates watchers, and it might chose the wrong one unless you load the
		238	correct one yourself.
		239
		240	You can chose to use a rather inefficient pure-perl implementation by
		241	loading the C<AnyEvent::Impl::Perl> module, but letting AnyEvent chose is
		242	generally better.
		243
49	=cut	244	=cut
50		245
51	package AnyEvent;	246	package AnyEvent;
52		247
53	no warnings;	248	no warnings;
54	use strict 'vars';	249	use strict;
55	use Carp;	250	use Carp;
56		251
57	our $VERSION = 0.2;	252	our $VERSION = '2.51';
58	our $MODEL;	253	our $MODEL;
59		254
60	our $AUTOLOAD;	255	our $AUTOLOAD;
61	our @ISA;	256	our @ISA;
62		257
		258	our $verbose = $ENV{PERL_ANYEVENT_VERBOSE}*1;
		259
		260	our @REGISTRY;
		261
63	my @models = (	262	my @models = (
64	[Coro => Coro::Event::],	263	[Coro::Event:: => AnyEvent::Impl::Coro::],
65	[Event => Event::],	264	[Event:: => AnyEvent::Impl::Event::],
66	[Glib => Glib::],	265	[Glib:: => AnyEvent::Impl::Glib::],
67	[Tk => Tk::],	266	[Tk:: => AnyEvent::Impl::Tk::],
		267	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl::],
68	);	268	);
69		269
70	our %method = map +($_ => 1), qw(io timer condvar broadcast wait cancel DESTROY);	270	our %method = map +($_ => 1), qw(io timer condvar broadcast wait signal one_event DESTROY);
71		271
72	sub AUTOLOAD {	272	sub detect() {
73	$AUTOLOAD =~ s/.*://;
74
75	$method{$AUTOLOAD}
76	or croak "$AUTOLOAD: not a valid method for AnyEvent objects";
77
78	unless ($MODEL) {	273	unless ($MODEL) {
		274	no strict 'refs';
		275
79	# check for already loaded models	276	# check for already loaded models
80	for (@models) {	277	for (@REGISTRY, @models) {
81	my ($model, $package) = @$_;	278	my ($package, $model) = @$_;
82	if (scalar keys %{ *{"$package\::"} }) {	279	if (${"$package\::VERSION"} > 0) {
83	eval "require AnyEvent::Impl::$model";	280	if (eval "require $model") {
84	last if $MODEL;	281	$MODEL = $model;
		282	warn "AnyEvent: found model '$model', using it.\n" if $verbose > 1;
		283	last;
		284	}
85	}	285	}
86	}	286	}
87		287
88	unless ($MODEL) {	288	unless ($MODEL) {
89	# try to load a model	289	# try to load a model
90		290
91	for (@models) {	291	for (@REGISTRY, @models) {
92	my ($model, $package) = @$_;	292	my ($package, $model) = @$_;
93	eval "require AnyEvent::Impl::$model";	293	if (eval "require $package"
94	last if $MODEL;	294	and ${"$package\::VERSION"} > 0
		295	and eval "require $model") {
		296	$MODEL = $model;
		297	warn "AnyEvent: autoprobed and loaded model '$model', using it.\n" if $verbose > 1;
		298	last;
		299	}
95	}	300	}
96		301
97	$MODEL	302	$MODEL
98	or die "No event module selected for AnyEvent and autodetect failed. Install any one of these modules: Coro, Event, Glib or Tk.";	303	or die "No event module selected for AnyEvent and autodetect failed. Install any one of these modules: Event (or Coro+Event), Glib or Tk.";
99	}	304	}
		305
		306	unshift @ISA, $MODEL;
		307	push @{"$MODEL\::ISA"}, "AnyEvent::Base";
100	}	308	}
101		309
102	@ISA = $MODEL;	310	$MODEL
		311	}
		312
		313	sub AUTOLOAD {
		314	(my $func = $AUTOLOAD) =~ s/.*://;
		315
		316	$method{$func}
		317	or croak "$func: not a valid method for AnyEvent objects";
		318
		319	detect unless $MODEL;
103		320
104	my $class = shift;	321	my $class = shift;
105	$class->$AUTOLOAD (@_);	322	$class->$func (@_);
106	}	323	}
107		324
108	=back	325	package AnyEvent::Base;
		326
		327	# default implementation for ->condvar, ->wait, ->broadcast
		328
		329	sub condvar {
		330	bless \my $flag, "AnyEvent::Base::CondVar"
		331	}
		332
		333	sub AnyEvent::Base::CondVar::broadcast {
		334	${$_[0]}++;
		335	}
		336
		337	sub AnyEvent::Base::CondVar::wait {
		338	AnyEvent->one_event while !${$_[0]};
		339	}
		340
		341	# default implementation for ->signal
		342
		343	our %SIG_CB;
		344
		345	sub signal {
		346	my (undef, %arg) = @_;
		347
		348	my $signal = uc $arg{signal}
		349	or Carp::croak "required option 'signal' is missing";
		350
		351	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		352	$SIG{$signal} \|\|= sub {
		353	$_->() for values %{ $SIG_CB{$signal} \|\| {} };
		354	};
		355
		356	bless [$signal, $arg{cb}], "AnyEvent::Base::Signal"
		357	}
		358
		359	sub AnyEvent::Base::Signal::DESTROY {
		360	my ($signal, $cb) = @{$_[0]};
		361
		362	delete $SIG_CB{$signal}{$cb};
		363
		364	$SIG{$signal} = 'DEFAULT' unless keys %{ $SIG_CB{$signal} };
		365	}
		366
		367	# default implementation for ->child
		368
		369	our %PID_CB;
		370	our $CHLD_W;
		371	our $PID_IDLE;
		372	our $WNOHANG;
		373
		374	sub _child_wait {
		375	while (0 < (my $pid = waitpid -1, $WNOHANG)) {
		376	$_->() for values %{ (delete $PID_CB{$pid}) \|\| {} };
		377	}
		378
		379	undef $PID_IDLE;
		380	}
		381
		382	sub child {
		383	my (undef, %arg) = @_;
		384
		385	my $pid = uc $arg{pid}
		386	or Carp::croak "required option 'pid' is missing";
		387
		388	$PID_CB{$pid}{$arg{cb}} = $arg{cb};
		389
		390	unless ($WNOHANG) {
		391	$CHLD_W = AnyEvent->signal (signal => 'CHLD', cb => \&_child_wait);
		392	$WNOHANG = eval { require POSIX; &POSIX::WNOHANG } \|\| 1;
		393	}
		394
		395	# child could be a zombie already
		396	$PID_IDLE \|\|= AnyEvent->timer (after => 0, cb => \&_child_wait);
		397
		398	bless [$pid, $arg{cb}], "AnyEvent::Base::Child"
		399	}
		400
		401	sub AnyEvent::Base::Child::DESTROY {
		402	my ($pid, $cb) = @{$_[0]};
		403
		404	delete $PID_CB{$pid}{$cb};
		405	delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} };
		406
		407	undef $CHLD_W unless keys %PID_CB;
		408	}
		409
		410	=head1 SUPPLYING YOUR OWN EVENT MODEL INTERFACE
		411
		412	If you need to support another event library which isn't directly
		413	supported by AnyEvent, you can supply your own interface to it by
		414	pushing, before the first watcher gets created, the package name of
		415	the event module and the package name of the interface to use onto
		416	C<@AnyEvent::REGISTRY>. You can do that before and even without loading
		417	AnyEvent.
		418
		419	Example:
		420
		421	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		422
		423	This tells AnyEvent to (literally) use the C<urxvt::anyevent::>
		424	package/class when it finds the C<urxvt> package/module is loaded. When
		425	AnyEvent is loaded and asked to find a suitable event model, it will
		426	first check for the presence of urxvt.
		427
		428	The class should provide implementations for all watcher types (see
		429	L<AnyEvent::Impl::Event> (source code), L<AnyEvent::Impl::Glib>
		430	(Source code) and so on for actual examples, use C<perldoc -m
		431	AnyEvent::Impl::Glib> to see the sources).
		432
		433	The above isn't fictitious, the I<rxvt-unicode> (a.k.a. urxvt)
		434	uses the above line as-is. An interface isn't included in AnyEvent
		435	because it doesn't make sense outside the embedded interpreter inside
		436	I<rxvt-unicode>, and it is updated and maintained as part of the
		437	I<rxvt-unicode> distribution.
		438
		439	I<rxvt-unicode> also cheats a bit by not providing blocking access to
		440	condition variables: code blocking while waiting for a condition will
		441	C<die>. This still works with most modules/usages, and blocking calls must
		442	not be in an interactive appliation, so it makes sense.
		443
		444	=head1 ENVIRONMENT VARIABLES
		445
		446	The following environment variables are used by this module:
		447
		448	C<PERL_ANYEVENT_VERBOSE> when set to C<2> or higher, reports which event
		449	model gets used.
109		450
110	=head1 EXAMPLE	451	=head1 EXAMPLE
111		452
112	The following program uses an io watcher to read data from stdin, a timer	453	The following program uses an io watcher to read data from stdin, a timer
113	to display a message once per second, and a condvar to exit the program	454	to display a message once per second, and a condvar to exit the program
…		…
135		476
136	new_timer; # create first timer	477	new_timer; # create first timer
137		478
138	$cv->wait; # wait until user enters /^q/i	479	$cv->wait; # wait until user enters /^q/i
139		480
		481	=head1 REAL-WORLD EXAMPLE
		482
		483	Consider the L<Net::FCP> module. It features (among others) the following
		484	API calls, which are to freenet what HTTP GET requests are to http:
		485
		486	my $data = $fcp->client_get ($url); # blocks
		487
		488	my $transaction = $fcp->txn_client_get ($url); # does not block
		489	$transaction->cb ( sub { ... } ); # set optional result callback
		490	my $data = $transaction->result; # possibly blocks
		491
		492	The C<client_get> method works like C<LWP::Simple::get>: it requests the
		493	given URL and waits till the data has arrived. It is defined to be:
		494
		495	sub client_get { $_[0]->txn_client_get ($_[1])->result }
		496
		497	And in fact is automatically generated. This is the blocking API of
		498	L<Net::FCP>, and it works as simple as in any other, similar, module.
		499
		500	More complicated is C<txn_client_get>: It only creates a transaction
		501	(completion, result, ...) object and initiates the transaction.
		502
		503	my $txn = bless { }, Net::FCP::Txn::;
		504
		505	It also creates a condition variable that is used to signal the completion
		506	of the request:
		507
		508	$txn->{finished} = AnyAvent->condvar;
		509
		510	It then creates a socket in non-blocking mode.
		511
		512	socket $txn->{fh}, ...;
		513	fcntl $txn->{fh}, F_SETFL, O_NONBLOCK;
		514	connect $txn->{fh}, ...
		515	and !$!{EWOULDBLOCK}
		516	and !$!{EINPROGRESS}
		517	and Carp::croak "unable to connect: $!\n";
		518
		519	Then it creates a write-watcher which gets called whenever an error occurs
		520	or the connection succeeds:
		521
		522	$txn->{w} = AnyEvent->io (fh => $txn->{fh}, poll => 'w', cb => sub { $txn->fh_ready_w });
		523
		524	And returns this transaction object. The C<fh_ready_w> callback gets
		525	called as soon as the event loop detects that the socket is ready for
		526	writing.
		527
		528	The C<fh_ready_w> method makes the socket blocking again, writes the
		529	request data and replaces the watcher by a read watcher (waiting for reply
		530	data). The actual code is more complicated, but that doesn't matter for
		531	this example:
		532
		533	fcntl $txn->{fh}, F_SETFL, 0;
		534	syswrite $txn->{fh}, $txn->{request}
		535	or die "connection or write error";
		536	$txn->{w} = AnyEvent->io (fh => $txn->{fh}, poll => 'r', cb => sub { $txn->fh_ready_r });
		537
		538	Again, C<fh_ready_r> waits till all data has arrived, and then stores the
		539	result and signals any possible waiters that the request ahs finished:
		540
		541	sysread $txn->{fh}, $txn->{buf}, length $txn->{$buf};
		542
		543	if (end-of-file or data complete) {
		544	$txn->{result} = $txn->{buf};
		545	$txn->{finished}->broadcast;
		546	$txb->{cb}->($txn) of $txn->{cb}; # also call callback
		547	}
		548
		549	The C<result> method, finally, just waits for the finished signal (if the
		550	request was already finished, it doesn't wait, of course, and returns the
		551	data:
		552
		553	$txn->{finished}->wait;
		554	return $txn->{result};
		555
		556	The actual code goes further and collects all errors (C<die>s, exceptions)
		557	that occured during request processing. The C<result> method detects
		558	wether an exception as thrown (it is stored inside the $txn object)
		559	and just throws the exception, which means connection errors and other
		560	problems get reported tot he code that tries to use the result, not in a
		561	random callback.
		562
		563	All of this enables the following usage styles:
		564
		565	1. Blocking:
		566
		567	my $data = $fcp->client_get ($url);
		568
		569	2. Blocking, but parallelizing:
		570
		571	my @datas = map $_->result,
		572	map $fcp->txn_client_get ($_),
		573	@urls;
		574
		575	Both blocking examples work without the module user having to know
		576	anything about events.
		577
		578	3a. Event-based in a main program, using any support Event module:
		579
		580	use Event;
		581
		582	$fcp->txn_client_get ($url)->cb (sub {
		583	my $txn = shift;
		584	my $data = $txn->result;
		585	...
		586	});
		587
		588	Event::loop;
		589
		590	3b. The module user could use AnyEvent, too:
		591
		592	use AnyEvent;
		593
		594	my $quit = AnyEvent->condvar;
		595
		596	$fcp->txn_client_get ($url)->cb (sub {
		597	...
		598	$quit->broadcast;
		599	});
		600
		601	$quit->wait;
		602
140	=head1 SEE ALSO	603	=head1 SEE ALSO
141		604
142	L<Coro::Event>, L<Coro>, L<Event>, L<Glib::Event>, L<Glib>,	605	Event modules: L<Coro::Event>, L<Coro>, L<Event>, L<Glib::Event>, L<Glib>.
143	L<AnyEvent::Impl::Coro>,	606
144	L<AnyEvent::Impl::Event>,	607	Implementations: L<AnyEvent::Impl::Coro>, L<AnyEvent::Impl::Event>, L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>.
145	L<AnyEvent::Impl::Glib>,	608
146	L<AnyEvent::Impl::Tk>.	609	Nontrivial usage example: L<Net::FCP>.
147		610
148	=head1	611	=head1
149		612
150	=cut	613	=cut
151		614

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Comparing AnyEvent/lib/AnyEvent.pm (file contents): Revision 1.4 by root, Thu Dec 1 22:04:50 2005 UTC vs. Revision 1.21 by root, Mon Dec 11 20:36:50 2006 UTC

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Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.4 by root, Thu Dec 1 22:04:50 2005 UTC vs.
Revision 1.21 by root, Mon Dec 11 20:36:50 2006 UTC