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

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.330 by root, Tue Aug 31 00:59:55 2010 UTC vs.
Revision 1.386 by root, Mon Sep 26 11:32:19 2011 UTC

…		…
1	=head1 NAME	1	=head1 NAME
2		2
3	AnyEvent - the DBI of event loop programming	3	AnyEvent - the DBI of event loop programming
4		4
5	EV, Event, Glib, Tk, Perl, Event::Lib, Irssi, rxvt-unicode, IO::Async, Qt	5	EV, Event, Glib, Tk, Perl, Event::Lib, Irssi, rxvt-unicode, IO::Async, Qt,
6	and POE are various supported event loops/environments.	6	FLTK 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
46	in a tutorial or some gentle introduction, have a look at the	46	in a tutorial or some gentle introduction, have a look at the
47	L<AnyEvent::Intro> manpage.	47	L<AnyEvent::Intro> manpage.
48		48
49	=head1 SUPPORT	49	=head1 SUPPORT
50		50
		51	An FAQ document is available as L<AnyEvent::FAQ>.
		52
51	There is a mailinglist for discussing all things AnyEvent, and an IRC	53	There also is a mailinglist for discussing all things AnyEvent, and an IRC
52	channel, too.	54	channel, too.
53		55
54	See the AnyEvent project page at the B<Schmorpforge Ta-Sa Software	56	See the AnyEvent project page at the B<Schmorpforge Ta-Sa Software
55	Repository>, at L<http://anyevent.schmorp.de>, for more info.	57	Repository>, at L<http://anyevent.schmorp.de>, for more info.
56		58
…		…
83	that isn't them. What's worse, all the potential users of your	85	that isn't them. What's worse, all the potential users of your
84	module are I<also> forced to use the same event loop you use.	86	module are I<also> forced to use the same event loop you use.
85		87
86	AnyEvent is different: AnyEvent + POE works fine. AnyEvent + Glib works	88	AnyEvent is different: AnyEvent + POE works fine. AnyEvent + Glib works
87	fine. AnyEvent + Tk works fine etc. etc. but none of these work together	89	fine. AnyEvent + Tk works fine etc. etc. but none of these work together
88	with the rest: POE + IO::Async? No go. Tk + Event? No go. Again: if	90	with the rest: POE + EV? No go. Tk + Event? No go. Again: if your module
89	your module uses one of those, every user of your module has to use it,	91	uses one of those, every user of your module has to use it, too. But if
90	too. But if your module uses AnyEvent, it works transparently with all	92	your module uses AnyEvent, it works transparently with all event models it
91	event models it supports (including stuff like IO::Async, as long as those	93	supports (including stuff like IO::Async, as long as those use one of the
92	use one of the supported event loops. It is easy to add new event loops	94	supported event loops. It is easy to add new event loops to AnyEvent, too,
93	to AnyEvent, too, so it is future-proof).	95	so it is future-proof).
94		96
95	In addition to being free of having to use I<the one and only true event	97	In addition to being free of having to use I<the one and only true event
96	model>, AnyEvent also is free of bloat and policy: with POE or similar	98	model>, AnyEvent also is free of bloat and policy: with POE or similar
97	modules, you get an enormous amount of code and strict rules you have to	99	modules, you get an enormous amount of code and strict rules you have to
98	follow. AnyEvent, on the other hand, is lean and to the point, by only	100	follow. AnyEvent, on the other hand, is lean and to the point, by only
…		…
119	The interface itself is vaguely similar, but not identical to the L<Event>	121	The interface itself is vaguely similar, but not identical to the L<Event>
120	module.	122	module.
121		123
122	During the first call of any watcher-creation method, the module tries	124	During the first call of any watcher-creation method, the module tries
123	to detect the currently loaded event loop by probing whether one of the	125	to detect the currently loaded event loop by probing whether one of the
124	following modules is already loaded: L<EV>,	126	following modules is already loaded: L<EV>, L<AnyEvent::Loop>,
125	L<Event>, L<Glib>, L<AnyEvent::Impl::Perl>, L<Tk>, L<Event::Lib>, L<Qt>,	127	L<Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. The first one
126	L<POE>. The first one found is used. If none are found, the module tries	128	found is used. If none are detected, the module tries to load the first
127	to load these modules (excluding Tk, Event::Lib, Qt and POE as the pure perl	129	four modules in the order given; but note that if L<EV> is not
128	adaptor should always succeed) in the order given. The first one that can	130	available, the pure-perl L<AnyEvent::Loop> should always work, so
129	be successfully loaded will be used. If, after this, still none could be	131	the other two are not normally tried.
130	found, AnyEvent will fall back to a pure-perl event loop, which is not
131	very efficient, but should work everywhere.
132		132
133	Because AnyEvent first checks for modules that are already loaded, loading	133	Because AnyEvent first checks for modules that are already loaded, loading
134	an event model explicitly before first using AnyEvent will likely make	134	an event model explicitly before first using AnyEvent will likely make
135	that model the default. For example:	135	that model the default. For example:
136		136
…		…
142	The I<likely> means that, if any module loads another event model and	142	The I<likely> means that, if any module loads another event model and
143	starts using it, all bets are off - this case should be very rare though,	143	starts using it, all bets are off - this case should be very rare though,
144	as very few modules hardcode event loops without announcing this very	144	as very few modules hardcode event loops without announcing this very
145	loudly.	145	loudly.
146		146
147	The pure-perl implementation of AnyEvent is called	147	The pure-perl implementation of AnyEvent is called C<AnyEvent::Loop>. Like
148	C<AnyEvent::Impl::Perl>. Like other event modules you can load it	148	other event modules you can load it explicitly and enjoy the high
149	explicitly and enjoy the high availability of that event loop :)	149	availability of that event loop :)
150		150
151	=head1 WATCHERS	151	=head1 WATCHERS
152		152
153	AnyEvent has the central concept of a I<watcher>, which is an object that	153	AnyEvent has the central concept of a I<watcher>, which is an object that
154	stores relevant data for each kind of event you are waiting for, such as	154	stores relevant data for each kind of event you are waiting for, such as
…		…
356	difference between C<< AnyEvent->time >> and C<< AnyEvent->now >> into	356	difference between C<< AnyEvent->time >> and C<< AnyEvent->now >> into
357	account.	357	account.
358		358
359	=item AnyEvent->now_update	359	=item AnyEvent->now_update
360		360
361	Some event loops (such as L<EV> or L<AnyEvent::Impl::Perl>) cache	361	Some event loops (such as L<EV> or L<AnyEvent::Loop>) cache the current
362	the current time for each loop iteration (see the discussion of L<<	362	time for each loop iteration (see the discussion of L<< AnyEvent->now >>,
363	AnyEvent->now >>, above).	363	above).
364		364
365	When a callback runs for a long time (or when the process sleeps), then	365	When a callback runs for a long time (or when the process sleeps), then
366	this "current" time will differ substantially from the real time, which	366	this "current" time will differ substantially from the real time, which
367	might affect timers and time-outs.	367	might affect timers and time-outs.
368		368
…		…
482	thing in an AnyEvent program, you I<have> to create at least one	482	thing in an AnyEvent program, you I<have> to create at least one
483	watcher before you C<fork> the child (alternatively, you can call	483	watcher before you C<fork> the child (alternatively, you can call
484	C<AnyEvent::detect>).	484	C<AnyEvent::detect>).
485		485
486	As most event loops do not support waiting for child events, they will be	486	As most event loops do not support waiting for child events, they will be
487	emulated by AnyEvent in most cases, in which the latency and race problems	487	emulated by AnyEvent in most cases, in which case the latency and race
488	mentioned in the description of signal watchers apply.	488	problems mentioned in the description of signal watchers apply.
489		489
490	Example: fork a process and wait for it	490	Example: fork a process and wait for it
491		491
492	my $done = AnyEvent->condvar;	492	my $done = AnyEvent->condvar;
493		493
…		…
860	use. If EV is not installed, then AnyEvent will fall back to its own	860	use. If EV is not installed, then AnyEvent will fall back to its own
861	pure-perl implementation, which is available everywhere as it comes with	861	pure-perl implementation, which is available everywhere as it comes with
862	AnyEvent itself.	862	AnyEvent itself.
863		863
864	AnyEvent::Impl::EV based on EV (interface to libev, best choice).	864	AnyEvent::Impl::EV based on EV (interface to libev, best choice).
865	AnyEvent::Impl::Perl pure-perl implementation, fast and portable.	865	AnyEvent::Impl::Perl pure-perl AnyEvent::Loop, fast and portable.
866		866
867	=item Backends that are transparently being picked up when they are used.	867	=item Backends that are transparently being picked up when they are used.
868		868
869	These will be used if they are already loaded when the first watcher	869	These will be used if they are already loaded when the first watcher
870	is created, in which case it is assumed that the application is using	870	is created, in which case it is assumed that the application is using
…		…
876	AnyEvent::Impl::Glib based on Glib, slow but very stable.	876	AnyEvent::Impl::Glib based on Glib, slow but very stable.
877	AnyEvent::Impl::Tk based on Tk, very broken.	877	AnyEvent::Impl::Tk based on Tk, very broken.
878	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.	878	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.
879	AnyEvent::Impl::POE based on POE, very slow, some limitations.	879	AnyEvent::Impl::POE based on POE, very slow, some limitations.
880	AnyEvent::Impl::Irssi used when running within irssi.	880	AnyEvent::Impl::Irssi used when running within irssi.
		881	AnyEvent::Impl::IOAsync based on IO::Async.
		882	AnyEvent::Impl::Cocoa based on Cocoa::EventLoop.
		883	AnyEvent::Impl::FLTK based on FLTK (fltk 2 binding).
881		884
882	=item Backends with special needs.	885	=item Backends with special needs.
883		886
884	Qt requires the Qt::Application to be instantiated first, but will	887	Qt requires the Qt::Application to be instantiated first, but will
885	otherwise be picked up automatically. As long as the main program	888	otherwise be picked up automatically. As long as the main program
886	instantiates the application before any AnyEvent watchers are created,	889	instantiates the application before any AnyEvent watchers are created,
887	everything should just work.	890	everything should just work.
888		891
889	AnyEvent::Impl::Qt based on Qt.	892	AnyEvent::Impl::Qt based on Qt.
890
891	Support for IO::Async can only be partial, as it is too broken and
892	architecturally limited to even support the AnyEvent API. It also
893	is the only event loop that needs the loop to be set explicitly, so
894	it can only be used by a main program knowing about AnyEvent. See
895	L<AnyEvent::Impl::IOAsync> for the gory details.
896
897	AnyEvent::Impl::IOAsync based on IO::Async, cannot be autoprobed.
898		893
899	=item Event loops that are indirectly supported via other backends.	894	=item Event loops that are indirectly supported via other backends.
900		895
901	Some event loops can be supported via other modules:	896	Some event loops can be supported via other modules:
902		897
…		…
938		933
939	Returns C<$AnyEvent::MODEL>, forcing autodetection of the event model	934	Returns C<$AnyEvent::MODEL>, forcing autodetection of the event model
940	if necessary. You should only call this function right before you would	935	if necessary. You should only call this function right before you would
941	have created an AnyEvent watcher anyway, that is, as late as possible at	936	have created an AnyEvent watcher anyway, that is, as late as possible at
942	runtime, and not e.g. during initialisation of your module.	937	runtime, and not e.g. during initialisation of your module.
		938
		939	The effect of calling this function is as if a watcher had been created
		940	(specifically, actions that happen "when the first watcher is created"
		941	happen when calling detetc as well).
943		942
944	If you need to do some initialisation before AnyEvent watchers are	943	If you need to do some initialisation before AnyEvent watchers are
945	created, use C<post_detect>.	944	created, use C<post_detect>.
946		945
947	=item $guard = AnyEvent::post_detect { BLOCK }	946	=item $guard = AnyEvent::post_detect { BLOCK }
…		…
1010	# AnyEvent not yet initialised, so make sure to load Coro::AnyEvent	1009	# AnyEvent not yet initialised, so make sure to load Coro::AnyEvent
1011	# as soon as it is	1010	# as soon as it is
1012	push @AnyEvent::post_detect, sub { require Coro::AnyEvent };	1011	push @AnyEvent::post_detect, sub { require Coro::AnyEvent };
1013	}	1012	}
1014		1013
		1014	=item AnyEvent::postpone { BLOCK }
		1015
		1016	Arranges for the block to be executed as soon as possible, but not before
		1017	the call itself returns. In practise, the block will be executed just
		1018	before the event loop polls for new events, or shortly afterwards.
		1019
		1020	This function never returns anything (to make the C<return postpone { ...
		1021	}> idiom more useful.
		1022
		1023	To understand the usefulness of this function, consider a function that
		1024	asynchronously does something for you and returns some transaction
		1025	object or guard to let you cancel the operation. For example,
		1026	C<AnyEvent::Socket::tcp_connect>:
		1027
		1028	# start a conenction attempt unless one is active
		1029	$self->{connect_guard} \|\|= AnyEvent::Socket::tcp_connect "www.example.net", 80, sub {
		1030	delete $self->{connect_guard};
		1031	...
		1032	};
		1033
		1034	Imagine that this function could instantly call the callback, for
		1035	example, because it detects an obvious error such as a negative port
		1036	number. Invoking the callback before the function returns causes problems
		1037	however: the callback will be called and will try to delete the guard
		1038	object. But since the function hasn't returned yet, there is nothing to
		1039	delete. When the function eventually returns it will assign the guard
		1040	object to C<< $self->{connect_guard} >>, where it will likely never be
		1041	deleted, so the program thinks it is still trying to connect.
		1042
		1043	This is where C<AnyEvent::postpone> should be used. Instead of calling the
		1044	callback directly on error:
		1045
		1046	$cb->(undef), return # signal error to callback, BAD!
		1047	if $some_error_condition;
		1048
		1049	It should use C<postpone>:
		1050
		1051	AnyEvent::postpone { $cb->(undef) }, return # signal error to callback, later
		1052	if $some_error_condition;
		1053
		1054	=item AnyEvent::log $level, $msg[, @args]
		1055
		1056	Log the given C<$msg> at the given C<$level>.
		1057
		1058	If L<AnyEvent::Log> is not loaded then this function makes a simple test
		1059	to see whether the message will be logged. If the test succeeds it will
		1060	load AnyEvent::Log and call C<AnyEvent::Log::log> - consequently, look at
		1061	the L<AnyEvent::Log> documentation for details.
		1062
		1063	If the test fails it will simply return. Right now this happens when a
		1064	numerical loglevel is used and it is larger than the level specified via
		1065	C<$ENV{PERL_ANYEVENT_VERBOSE}>.
		1066
		1067	If you want to sprinkle loads of logging calls around your code, consider
		1068	creating a logger callback with the C<AnyEvent::Log::logger> function,
		1069	which can reduce typing, codesize and can reduce the logging overhead
		1070	enourmously.
		1071
1015	=back	1072	=back
1016		1073
1017	=head1 WHAT TO DO IN A MODULE	1074	=head1 WHAT TO DO IN A MODULE
1018		1075
1019	As a module author, you should C<use AnyEvent> and call AnyEvent methods	1076	As a module author, you should C<use AnyEvent> and call AnyEvent methods
…		…
1052	modules might create watchers when they are loaded, and AnyEvent will	1109	modules might create watchers when they are loaded, and AnyEvent will
1053	decide on the event model to use as soon as it creates watchers, and it	1110	decide on the event model to use as soon as it creates watchers, and it
1054	might choose the wrong one unless you load the correct one yourself.	1111	might choose the wrong one unless you load the correct one yourself.
1055		1112
1056	You can chose to use a pure-perl implementation by loading the	1113	You can chose to use a pure-perl implementation by loading the
1057	C<AnyEvent::Impl::Perl> module, which gives you similar behaviour	1114	C<AnyEvent::Loop> module, which gives you similar behaviour
1058	everywhere, but letting AnyEvent chose the model is generally better.	1115	everywhere, but letting AnyEvent chose the model is generally better.
1059		1116
1060	=head2 MAINLOOP EMULATION	1117	=head2 MAINLOOP EMULATION
1061		1118
1062	Sometimes (often for short test scripts, or even standalone programs who	1119	Sometimes (often for short test scripts, or even standalone programs who
…		…
1075		1132
1076		1133
1077	=head1 OTHER MODULES	1134	=head1 OTHER MODULES
1078		1135
1079	The following is a non-exhaustive list of additional modules that use	1136	The following is a non-exhaustive list of additional modules that use
1080	AnyEvent as a client and can therefore be mixed easily with other AnyEvent	1137	AnyEvent as a client and can therefore be mixed easily with other
1081	modules and other event loops in the same program. Some of the modules	1138	AnyEvent modules and other event loops in the same program. Some of the
1082	come as part of AnyEvent, the others are available via CPAN.	1139	modules come as part of AnyEvent, the others are available via CPAN (see
		1140	L<http://search.cpan.org/search?m=module&q=anyevent%3A%3A*> for
		1141	a longer non-exhaustive list), and the list is heavily biased towards
		1142	modules of the AnyEvent author himself :)
1083		1143
1084	=over 4	1144	=over 4
1085		1145
1086	=item L<AnyEvent::Util>	1146	=item L<AnyEvent::Util>
1087		1147
…		…
1107	=item L<AnyEvent::HTTP>, L<AnyEvent::IRC>, L<AnyEvent::XMPP>, L<AnyEvent::GPSD>, L<AnyEvent::IGS>, L<AnyEvent::FCP>	1167	=item L<AnyEvent::HTTP>, L<AnyEvent::IRC>, L<AnyEvent::XMPP>, L<AnyEvent::GPSD>, L<AnyEvent::IGS>, L<AnyEvent::FCP>
1108		1168
1109	Implement event-based interfaces to the protocols of the same name (for	1169	Implement event-based interfaces to the protocols of the same name (for
1110	the curious, IGS is the International Go Server and FCP is the Freenet	1170	the curious, IGS is the International Go Server and FCP is the Freenet
1111	Client Protocol).	1171	Client Protocol).
1112
1113	=item L<AnyEvent::Handle::UDP>
1114
1115	Here be danger!
1116
1117	As Pauli would put it, "Not only is it not right, it's not even wrong!" -
1118	there are so many things wrong with AnyEvent::Handle::UDP, most notably
1119	its use of a stream-based API with a protocol that isn't streamable, that
1120	the only way to improve it is to delete it.
1121
1122	It features data corruption (but typically only under load) and general
1123	confusion. On top, the author is not only clueless about UDP but also
1124	fact-resistant - some gems of his understanding: "connect doesn't work
1125	with UDP", "UDP packets are not IP packets", "UDP only has datagrams, not
1126	packets", "I don't need to implement proper error checking as UDP doesn't
1127	support error checking" and so on - he doesn't even understand what's
1128	wrong with his module when it is explained to him.
1129
1130	=item L<AnyEvent::DBI>
1131
1132	Executes L<DBI> requests asynchronously in a proxy process for you,
1133	notifying you in an event-based way when the operation is finished.
1134		1172
1135	=item L<AnyEvent::AIO>	1173	=item L<AnyEvent::AIO>
1136		1174
1137	Truly asynchronous (as opposed to non-blocking) I/O, should be in the	1175	Truly asynchronous (as opposed to non-blocking) I/O, should be in the
1138	toolbox of every event programmer. AnyEvent::AIO transparently fuses	1176	toolbox of every event programmer. AnyEvent::AIO transparently fuses
1139	L<IO::AIO> and AnyEvent together, giving AnyEvent access to event-based	1177	L<IO::AIO> and AnyEvent together, giving AnyEvent access to event-based
1140	file I/O, and much more.	1178	file I/O, and much more.
1141		1179
		1180	=item L<AnyEvent::Filesys::Notify>
		1181
		1182	AnyEvent is good for non-blocking stuff, but it can't detect file or
		1183	path changes (e.g. "watch this directory for new files", "watch this
		1184	file for changes"). The L<AnyEvent::Filesys::Notify> module promises to
		1185	do just that in a portbale fashion, supporting inotify on GNU/Linux and
		1186	some weird, without doubt broken, stuff on OS X to monitor files. It can
		1187	fall back to blocking scans at regular intervals transparently on other
		1188	platforms, so it's about as portable as it gets.
		1189
		1190	(I haven't used it myself, but I haven't heard anybody complaining about
		1191	it yet).
		1192
		1193	=item L<AnyEvent::DBI>
		1194
		1195	Executes L<DBI> requests asynchronously in a proxy process for you,
		1196	notifying you in an event-based way when the operation is finished.
		1197
1142	=item L<AnyEvent::HTTPD>	1198	=item L<AnyEvent::HTTPD>
1143		1199
1144	A simple embedded webserver.	1200	A simple embedded webserver.
1145		1201
1146	=item L<AnyEvent::FastPing>	1202	=item L<AnyEvent::FastPing>
1147		1203
1148	The fastest ping in the west.	1204	The fastest ping in the west.
1149		1205
1150	=item L<Coro>	1206	=item L<Coro>
1151		1207
1152	Has special support for AnyEvent via L<Coro::AnyEvent>.	1208	Has special support for AnyEvent via L<Coro::AnyEvent>, which allows you
		1209	to simply invert the flow control - don't call us, we will call you:
		1210
		1211	async {
		1212	Coro::AnyEvent::sleep 5; # creates a 5s timer and waits for it
		1213	print "5 seconds later!\n";
		1214
		1215	Coro::AnyEvent::readable *STDIN; # uses an I/O watcher
		1216	my $line = <STDIN>; # works for ttys
		1217
		1218	AnyEvent::HTTP::http_get "url", Coro::rouse_cb;
		1219	my ($body, $hdr) = Coro::rouse_wait;
		1220	};
1153		1221
1154	=back	1222	=back
1155		1223
1156	=cut	1224	=cut
1157		1225
1158	package AnyEvent;	1226	package AnyEvent;
1159		1227
1160	# basically a tuned-down version of common::sense	1228	# basically a tuned-down version of common::sense
1161	sub common_sense {	1229	sub common_sense {
1162	# from common:.sense 1.0	1230	# from common:.sense 3.4
1163	${^WARNING_BITS} = "\xfc\x3f\x33\x00\x0f\xf3\xcf\xc0\xf3\xfc\x33\x00";	1231	${^WARNING_BITS} ^= ${^WARNING_BITS} ^ "\x3c\x3f\x33\x00\x0f\xf0\x0f\xc0\xf0\xfc\x33\x00";
1164	# use strict vars subs - NO UTF-8, as Util.pm doesn't like this atm. (uts46data.pl)	1232	# use strict vars subs - NO UTF-8, as Util.pm doesn't like this atm. (uts46data.pl)
1165	$^H \|= 0x00000600;	1233	$^H \|= 0x00000600;
1166	}	1234	}
1167		1235
1168	BEGIN { AnyEvent::common_sense }	1236	BEGIN { AnyEvent::common_sense }
1169		1237
1170	use Carp ();	1238	use Carp ();
1171		1239
1172	our $VERSION = '5.271';	1240	our $VERSION = '6.02';
1173	our $MODEL;	1241	our $MODEL;
1174
1175	our $AUTOLOAD;
1176	our @ISA;	1242	our @ISA;
1177
1178	our @REGISTRY;	1243	our @REGISTRY;
1179
1180	our $VERBOSE;	1244	our $VERBOSE;
		1245	our $MAX_SIGNAL_LATENCY = 10;
		1246	our %PROTOCOL; # (ipv4\|ipv6) => (1\|2), higher numbers are preferred
1181		1247
1182	BEGIN {	1248	BEGIN {
1183	require "AnyEvent/constants.pl";	1249	require "AnyEvent/constants.pl";
1184		1250
1185	eval "sub TAINT (){" . (${^TAINT}*1) . "}";	1251	eval "sub TAINT (){" . (${^TAINT}*1) . "}";
1186		1252
1187	delete @ENV{grep /^PERL_ANYEVENT_/, keys %ENV}	1253	delete @ENV{grep /^PERL_ANYEVENT_/, keys %ENV}
1188	if ${^TAINT};	1254	if ${^TAINT};
1189		1255
1190	$VERBOSE = $ENV{PERL_ANYEVENT_VERBOSE}*1;	1256	$ENV{"PERL_ANYEVENT_$_"} = $ENV{"AE_$_"}
		1257	for grep s/^AE_// && !exists $ENV{"PERL_ANYEVENT_$_"}, keys %ENV;
1191		1258
1192	}	1259	@ENV{grep /^PERL_ANYEVENT_/, keys %ENV} = ()
		1260	if ${^TAINT};
1193		1261
1194	our $MAX_SIGNAL_LATENCY = 10;	1262	# $ENV{PERL_ANYEVENT_xxx} now valid
1195		1263
1196	our %PROTOCOL; # (ipv4\|ipv6) => (1\|2), higher numbers are preferred	1264	$VERBOSE = length $ENV{PERL_ANYEVENT_VERBOSE} ? $ENV{PERL_ANYEVENT_VERBOSE}*1 : 4;
1197		1265
1198	{
1199	my $idx;	1266	my $idx;
1200	$PROTOCOL{$_} = ++$idx	1267	$PROTOCOL{$_} = ++$idx
1201	for reverse split /\s,\s/,	1268	for reverse split /\s,\s/,
1202	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";	1269	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";
1203	}	1270	}
1204		1271
		1272	our @post_detect;
		1273
		1274	sub post_detect(&) {
		1275	my ($cb) = @_;
		1276
		1277	push @post_detect, $cb;
		1278
		1279	defined wantarray
		1280	? bless \$cb, "AnyEvent::Util::postdetect"
		1281	: ()
		1282	}
		1283
		1284	sub AnyEvent::Util::postdetect::DESTROY {
		1285	@post_detect = grep $_ != ${$_[0]}, @post_detect;
		1286	}
		1287
		1288	our $POSTPONE_W;
		1289	our @POSTPONE;
		1290
		1291	sub _postpone_exec {
		1292	undef $POSTPONE_W;
		1293
		1294	&{ shift @POSTPONE }
		1295	while @POSTPONE;
		1296	}
		1297
		1298	sub postpone(&) {
		1299	push @POSTPONE, shift;
		1300
		1301	$POSTPONE_W \|\|= AE::timer (0, 0, \&_postpone_exec);
		1302
		1303	()
		1304	}
		1305
		1306	sub log($$;@) {
		1307	# only load the big bloated module when we actually are about to log something
		1308	if ($_[0] <= ($VERBOSE \|\| 1)) { # also catches non-numeric levels(!) and fatal
		1309	require AnyEvent::Log; # among other things, sets $VERBOSE to 9
		1310	# AnyEvent::Log overwrites this function
		1311	goto &log;
		1312	}
		1313
		1314	0 # not logged
		1315	}
		1316
		1317	sub logger($;$) {
		1318	package AnyEvent::Log;
		1319
		1320	my ($level, $renabled) = @_;
		1321
		1322	$$renabled = $level <= $VERBOSE;
		1323
		1324	my $pkg = (caller)[0];
		1325
		1326	my $logger = [$pkg, $level, $renabled];
		1327
		1328	our %LOGGER;
		1329	$LOGGER{$logger+0} = $logger;
		1330
		1331	require AnyEvent::Util;
		1332	my $guard = AnyEvent::Util::guard (sub {
		1333	# "clean up"
		1334	delete $LOGGER{$logger+0};
		1335	});
		1336
		1337	sub {
		1338	return 0 unless $$renabled;
		1339
		1340	$guard if 0; # keep guard alive, but don't cause runtime overhead
		1341	require AnyEvent::Log unless $AnyEvent::Log::VERSION;
		1342	package AnyEvent::Log;
		1343	_log ($logger->[0], $level, @_) # logger->[0] has been converted at load time
		1344	}
		1345	}
		1346
		1347	if (length $ENV{PERL_ANYEVENT_LOG}) {
		1348	require AnyEvent::Log; # AnyEvent::Log does the thing for us
		1349	}
		1350
1205	my @models = (	1351	our @models = (
1206	[EV:: => AnyEvent::Impl::EV:: , 1],	1352	[EV:: => AnyEvent::Impl::EV::],
1207	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl:: , 1],	1353	[AnyEvent::Loop:: => AnyEvent::Impl::Perl::],
1208	# everything below here will not (normally) be autoprobed	1354	# everything below here will not (normally) be autoprobed
1209	# as the pureperl backend should work everywhere	1355	# as the pure perl backend should work everywhere
1210	# and is usually faster	1356	# and is usually faster
		1357	[Irssi:: => AnyEvent::Impl::Irssi::], # Irssi has a bogus "Event" package, so msut be near the top
1211	[Event:: => AnyEvent::Impl::Event::, 1],	1358	[Event:: => AnyEvent::Impl::Event::], # slow, stable
1212	[Glib:: => AnyEvent::Impl::Glib:: , 1], # becomes extremely slow with many watchers	1359	[Glib:: => AnyEvent::Impl::Glib::], # becomes extremely slow with many watchers
		1360	# everything below here should not be autoloaded
1213	[Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy	1361	[Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy
1214	[Irssi:: => AnyEvent::Impl::Irssi::], # Irssi has a bogus "Event" package
1215	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles	1362	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles
1216	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program	1363	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program
1217	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza	1364	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza
1218	[Wx:: => AnyEvent::Impl::POE::],	1365	[Wx:: => AnyEvent::Impl::POE::],
1219	[Prima:: => AnyEvent::Impl::POE::],	1366	[Prima:: => AnyEvent::Impl::POE::],
1220	# IO::Async is just too broken - we would need workarounds for its	1367	[IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # a bitch to autodetect
1221	# byzantine signal and broken child handling, among others.	1368	[Cocoa::EventLoop:: => AnyEvent::Impl::Cocoa::],
1222	# IO::Async is rather hard to detect, as it doesn't have any	1369	[FLTK:: => AnyEvent::Impl::FLTK::],
1223	# obvious default class.
1224	[IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program
1225	[IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program
1226	[IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program
1227	[AnyEvent::Impl::IOAsync:: => AnyEvent::Impl::IOAsync::], # requires special main program
1228	);	1370	);
1229		1371
1230	our %method = map +($_ => 1),	1372	our @isa_hook;
		1373
		1374	sub _isa_set {
		1375	my @pkg = ("AnyEvent", (map $_->[0], grep defined, @isa_hook), $MODEL);
		1376
		1377	@{"$pkg[$_-1]::ISA"} = $pkg[$_]
		1378	for 1 .. $#pkg;
		1379
		1380	grep $_ && $_->[1], @isa_hook
		1381	and AE::_reset ();
		1382	}
		1383
		1384	# used for hooking AnyEvent::Strict and AnyEvent::Debug::Wrap into the class hierarchy
		1385	sub _isa_hook($$;$) {
		1386	my ($i, $pkg, $reset_ae) = @_;
		1387
		1388	$isa_hook[$i] = $pkg ? [$pkg, $reset_ae] : undef;
		1389
		1390	_isa_set;
		1391	}
		1392
		1393	# all autoloaded methods reserve the complete glob, not just the method slot.
		1394	# due to bugs in perls method cache implementation.
1231	qw(io timer time now now_update signal child idle condvar one_event DESTROY);	1395	our @methods = qw(io timer time now now_update signal child idle condvar);
1232
1233	our @post_detect;
1234
1235	sub post_detect(&) {
1236	my ($cb) = @_;
1237
1238	push @post_detect, $cb;
1239
1240	defined wantarray
1241	? bless \$cb, "AnyEvent::Util::postdetect"
1242	: ()
1243	}
1244
1245	sub AnyEvent::Util::postdetect::DESTROY {
1246	@post_detect = grep $_ != ${$_[0]}, @post_detect;
1247	}
1248		1396
1249	sub detect() {	1397	sub detect() {
		1398	return $MODEL if $MODEL; # some programs keep references to detect
		1399
		1400	# IO::Async::Loop::AnyEvent is extremely evil, refuse to work with it
		1401	# the author knows about the problems and what it does to AnyEvent as a whole
		1402	# (and the ability of others to use AnyEvent), but simply wants to abuse AnyEvent
		1403	# anyway.
		1404	AnyEvent::log fatal => "AnyEvent: IO::Async::Loop::AnyEvent detected - this module is broken by design,\n"
		1405	. "abuses internals and breaks AnyEvent, will not continue."
		1406	if exists $INC{"IO/Async/Loop/AnyEvent.pm"};
		1407
		1408	local $!; # for good measure
		1409	local $SIG{__DIE__}; # we use eval
		1410
1250	# free some memory	1411	# free some memory
1251	*detect = sub () { $MODEL };	1412	*detect = sub () { $MODEL };
		1413	# undef &func doesn't correctly update the method cache. grmbl.
		1414	# so we delete the whole glob. grmbl.
		1415	# otoh, perl doesn't let me undef an active usb, but it lets me free
		1416	# a glob with an active sub. hrm. i hope it works, but perl is
		1417	# usually buggy in this department. sigh.
		1418	delete @{"AnyEvent::"}{@methods};
		1419	undef @methods;
1252		1420
1253	local $!; # for good measure
1254	local $SIG{__DIE__};
1255
1256	if ($ENV{PERL_ANYEVENT_MODEL} =~ /^([a-zA-Z]+)$/) {	1421	if ($ENV{PERL_ANYEVENT_MODEL} =~ /^([a-zA-Z0-9:]+)$/) {
1257	my $model = "AnyEvent::Impl::$1";	1422	my $model = $1;
		1423	$model = "AnyEvent::Impl::$model" unless $model =~ s/::$//;
1258	if (eval "require $model") {	1424	if (eval "require $model") {
		1425	AnyEvent::log 7 => "loaded model '$model' (forced by \$ENV{PERL_ANYEVENT_MODEL}), using it.";
1259	$MODEL = $model;	1426	$MODEL = $model;
1260	warn "AnyEvent: loaded model '$model' (forced by \$ENV{PERL_ANYEVENT_MODEL}), using it.\n" if $VERBOSE >= 2;
1261	} else {	1427	} else {
1262	warn "AnyEvent: unable to load model '$model' (from \$ENV{PERL_ANYEVENT_MODEL}):\n$@" if $VERBOSE;	1428	AnyEvent::log 4 => "unable to load model '$model' (from \$ENV{PERL_ANYEVENT_MODEL}):\n$@";
1263	}	1429	}
1264	}	1430	}
1265		1431
1266	# check for already loaded models	1432	# check for already loaded models
1267	unless ($MODEL) {	1433	unless ($MODEL) {
1268	for (@REGISTRY, @models) {	1434	for (@REGISTRY, @models) {
1269	my ($package, $model) = @$_;	1435	my ($package, $model) = @$_;
1270	if (${"$package\::VERSION"} > 0) {	1436	if (${"$package\::VERSION"} > 0) {
1271	if (eval "require $model") {	1437	if (eval "require $model") {
		1438	AnyEvent::log 7 => "autodetected model '$model', using it.";
1272	$MODEL = $model;	1439	$MODEL = $model;
1273	warn "AnyEvent: autodetected model '$model', using it.\n" if $VERBOSE >= 2;
1274	last;	1440	last;
1275	}	1441	}
1276	}	1442	}
1277	}	1443	}
1278		1444
1279	unless ($MODEL) {	1445	unless ($MODEL) {
1280	# try to autoload a model	1446	# try to autoload a model
1281	for (@REGISTRY, @models) {	1447	for (@REGISTRY, @models) {
1282	my ($package, $model, $autoload) = @$_;	1448	my ($package, $model) = @$_;
1283	if (	1449	if (
1284	$autoload
1285	and eval "require $package"	1450	eval "require $package"
1286	and ${"$package\::VERSION"} > 0	1451	and ${"$package\::VERSION"} > 0
1287	and eval "require $model"	1452	and eval "require $model"
1288	) {	1453	) {
		1454	AnyEvent::log 7 => "autoloaded model '$model', using it.";
1289	$MODEL = $model;	1455	$MODEL = $model;
1290	warn "AnyEvent: autoloaded model '$model', using it.\n" if $VERBOSE >= 2;
1291	last;	1456	last;
1292	}	1457	}
1293	}	1458	}
1294		1459
1295	$MODEL	1460	$MODEL
1296	or die "No event module selected for AnyEvent and autodetect failed. Install any one of these modules: EV, Event or Glib.\n";	1461	or AnyEvent::log fatal => "AnyEvent: backend autodetection failed - did you properly install AnyEvent?";
1297	}	1462	}
1298	}	1463	}
1299		1464
1300	@models = (); # free probe data	1465	# free memory only needed for probing
		1466	undef @models;
		1467	undef @REGISTRY;
1301		1468
1302	push @{"$MODEL\::ISA"}, "AnyEvent::Base";	1469	push @{"$MODEL\::ISA"}, "AnyEvent::Base";
1303	unshift @ISA, $MODEL;
1304		1470
1305	# now nuke some methods that are overriden by the backend.	1471	# now nuke some methods that are overridden by the backend.
1306	# SUPER is not allowed.	1472	# SUPER usage is not allowed in these.
1307	for (qw(time signal child idle)) {	1473	for (qw(time signal child idle)) {
1308	undef &{"AnyEvent::Base::$_"}	1474	undef &{"AnyEvent::Base::$_"}
1309	if defined &{"$MODEL\::$_"};	1475	if defined &{"$MODEL\::$_"};
1310	}	1476	}
1311		1477
1312	require AnyEvent::Strict if $ENV{PERL_ANYEVENT_STRICT};	1478	_isa_set;
		1479
		1480	# we're officially open!
		1481
		1482	if ($ENV{PERL_ANYEVENT_STRICT}) {
		1483	require AnyEvent::Strict;
		1484	}
		1485
		1486	if ($ENV{PERL_ANYEVENT_DEBUG_WRAP}) {
		1487	require AnyEvent::Debug;
		1488	AnyEvent::Debug::wrap ($ENV{PERL_ANYEVENT_DEBUG_WRAP});
		1489	}
		1490
		1491	if (length $ENV{PERL_ANYEVENT_DEBUG_SHELL}) {
		1492	require AnyEvent::Socket;
		1493	require AnyEvent::Debug;
		1494
		1495	my $shell = $ENV{PERL_ANYEVENT_DEBUG_SHELL};
		1496	$shell =~ s/\$\$/$$/g;
		1497
		1498	my ($host, $service) = AnyEvent::Socket::parse_hostport ($shell);
		1499	$AnyEvent::Debug::SHELL = AnyEvent::Debug::shell ($host, $service);
		1500	}
		1501
		1502	# now the anyevent environment is set up as the user told us to, so
		1503	# call the actual user code - post detects
1313		1504
1314	(shift @post_detect)->() while @post_detect;	1505	(shift @post_detect)->() while @post_detect;
		1506	undef @post_detect;
1315		1507
1316	*post_detect = sub(&) {	1508	*post_detect = sub(&) {
1317	shift->();	1509	shift->();
1318		1510
1319	undef	1511	undef
1320	};	1512	};
1321		1513
1322	$MODEL	1514	$MODEL
1323	}	1515	}
1324		1516
1325	sub AUTOLOAD {	1517	for my $name (@methods) {
1326	(my $func = $AUTOLOAD) =~ s/.*://;	1518	*$name = sub {
1327
1328	$method{$func}
1329	or Carp::croak "$func: not a valid AnyEvent class method";
1330
1331	detect;	1519	detect;
1332		1520	# we use goto because
1333	my $class = shift;	1521	# a) it makes the thunk more transparent
1334	$class->$func (@_);	1522	# b) it allows us to delete the thunk later
		1523	goto &{ UNIVERSAL::can AnyEvent => "SUPER::$name" }
		1524	};
1335	}	1525	}
1336		1526
1337	# utility function to dup a filehandle. this is used by many backends	1527	# utility function to dup a filehandle. this is used by many backends
1338	# to support binding more than one watcher per filehandle (they usually	1528	# to support binding more than one watcher per filehandle (they usually
1339	# allow only one watcher per fd, so we dup it to get a different one).	1529	# allow only one watcher per fd, so we dup it to get a different one).
…		…
1363		1553
1364	package AE;	1554	package AE;
1365		1555
1366	our $VERSION = $AnyEvent::VERSION;	1556	our $VERSION = $AnyEvent::VERSION;
1367		1557
		1558	sub _reset() {
		1559	eval q{
1368	# fall back to the main API by default - backends and AnyEvent::Base	1560	# fall back to the main API by default - backends and AnyEvent::Base
1369	# implementations can overwrite these.	1561	# implementations can overwrite these.
1370		1562
1371	sub io($$$) {	1563	sub io($$$) {
1372	AnyEvent->io (fh => $_[0], poll => $_[1] ? "w" : "r", cb => $_[2])	1564	AnyEvent->io (fh => $_[0], poll => $_[1] ? "w" : "r", cb => $_[2])
1373	}	1565	}
1374		1566
1375	sub timer($$$) {	1567	sub timer($$$) {
1376	AnyEvent->timer (after => $_[0], interval => $_[1], cb => $_[2])	1568	AnyEvent->timer (after => $_[0], interval => $_[1], cb => $_[2])
1377	}	1569	}
1378		1570
1379	sub signal($$) {	1571	sub signal($$) {
1380	AnyEvent->signal (signal => $_[0], cb => $_[1])	1572	AnyEvent->signal (signal => $_[0], cb => $_[1])
1381	}	1573	}
1382		1574
1383	sub child($$) {	1575	sub child($$) {
1384	AnyEvent->child (pid => $_[0], cb => $_[1])	1576	AnyEvent->child (pid => $_[0], cb => $_[1])
1385	}	1577	}
1386		1578
1387	sub idle($) {	1579	sub idle($) {
1388	AnyEvent->idle (cb => $_[0])	1580	AnyEvent->idle (cb => $_[0]);
1389	}	1581	}
1390		1582
1391	sub cv(;&) {	1583	sub cv(;&) {
1392	AnyEvent->condvar (@_ ? (cb => $_[0]) : ())	1584	AnyEvent->condvar (@_ ? (cb => $_[0]) : ())
1393	}	1585	}
1394		1586
1395	sub now() {	1587	sub now() {
1396	AnyEvent->now	1588	AnyEvent->now
1397	}	1589	}
1398		1590
1399	sub now_update() {	1591	sub now_update() {
1400	AnyEvent->now_update	1592	AnyEvent->now_update
1401	}	1593	}
1402		1594
1403	sub time() {	1595	sub time() {
1404	AnyEvent->time	1596	AnyEvent->time
		1597	}
		1598
		1599	*postpone = \&AnyEvent::postpone;
		1600	*log = \&AnyEvent::log;
		1601	};
		1602	die if $@;
1405	}	1603	}
		1604
		1605	BEGIN { _reset }
1406		1606
1407	package AnyEvent::Base;	1607	package AnyEvent::Base;
1408		1608
1409	# default implementations for many methods	1609	# default implementations for many methods
1410		1610
1411	sub time {	1611	sub time {
1412	eval q{ # poor man's autoloading {}	1612	eval q{ # poor man's autoloading {}
1413	# probe for availability of Time::HiRes	1613	# probe for availability of Time::HiRes
1414	if (eval "use Time::HiRes (); Time::HiRes::time (); 1") {	1614	if (eval "use Time::HiRes (); Time::HiRes::time (); 1") {
1415	warn "AnyEvent: using Time::HiRes for sub-second timing accuracy.\n" if $VERBOSE >= 8;	1615	*time = sub { Time::HiRes::time () };
1416	*AE::time = \&Time::HiRes::time;	1616	*AE::time = \& Time::HiRes::time ;
		1617	*now = \&time;
		1618	AnyEvent::log 8 => "AnyEvent: using Time::HiRes for sub-second timing accuracy.";
1417	# if (eval "use POSIX (); (POSIX::times())...	1619	# if (eval "use POSIX (); (POSIX::times())...
1418	} else {	1620	} else {
		1621	*time = sub { CORE::time };
		1622	*AE::time = sub (){ CORE::time };
		1623	*now = \&time;
1419	warn "AnyEvent: using built-in time(), WARNING, no sub-second resolution!\n" if $VERBOSE;	1624	AnyEvent::log 3 => "using built-in time(), WARNING, no sub-second resolution!";
1420	*AE::time = sub (){ time }; # epic fail
1421	}	1625	}
1422
1423	*time = sub { AE::time }; # different prototypes
1424	};	1626	};
1425	die if $@;	1627	die if $@;
1426		1628
1427	&time	1629	&time
1428	}	1630	}
1429		1631
1430	*now = \&time;	1632	*now = \&time;
1431
1432	sub now_update { }	1633	sub now_update { }
1433		1634
		1635	sub _poll {
		1636	Carp::croak "$AnyEvent::MODEL does not support blocking waits. Caught";
		1637	}
		1638
1434	# default implementation for ->condvar	1639	# default implementation for ->condvar
		1640	# in fact, the default should not be overwritten
1435		1641
1436	sub condvar {	1642	sub condvar {
1437	eval q{ # poor man's autoloading {}	1643	eval q{ # poor man's autoloading {}
1438	*condvar = sub {	1644	*condvar = sub {
1439	bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, "AnyEvent::CondVar"	1645	bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, "AnyEvent::CondVar"
…		…
1517		1723
1518	sub signal {	1724	sub signal {
1519	eval q{ # poor man's autoloading {}	1725	eval q{ # poor man's autoloading {}
1520	# probe for availability of Async::Interrupt	1726	# probe for availability of Async::Interrupt
1521	if (_have_async_interrupt) {	1727	if (_have_async_interrupt) {
1522	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;	1728	AnyEvent::log 8 => "using Async::Interrupt for race-free signal handling.";
1523		1729
1524	$SIGPIPE_R = new Async::Interrupt::EventPipe;	1730	$SIGPIPE_R = new Async::Interrupt::EventPipe;
1525	$SIG_IO = AE::io $SIGPIPE_R->fileno, 0, \&_signal_exec;	1731	$SIG_IO = AE::io $SIGPIPE_R->fileno, 0, \&_signal_exec;
1526		1732
1527	} else {	1733	} else {
1528	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;	1734	AnyEvent::log 8 => "using emulated perl signal handling with latency timer.";
1529		1735
1530	if (AnyEvent::WIN32) {	1736	if (AnyEvent::WIN32) {
1531	require AnyEvent::Util;	1737	require AnyEvent::Util;
1532		1738
1533	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();	1739	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
…		…
1609	: sysread $SIGPIPE_R, (my $dummy), 9;	1815	: sysread $SIGPIPE_R, (my $dummy), 9;
1610		1816
1611	while (%SIG_EV) {	1817	while (%SIG_EV) {
1612	for (keys %SIG_EV) {	1818	for (keys %SIG_EV) {
1613	delete $SIG_EV{$_};	1819	delete $SIG_EV{$_};
1614	$_->() for values %{ $SIG_CB{$_} \|\| {} };	1820	&$_ for values %{ $SIG_CB{$_} \|\| {} };
1615	}	1821	}
1616	}	1822	}
1617	};	1823	};
1618	};	1824	};
1619	die if $@;	1825	die if $@;
…		…
1624	# default implementation for ->child	1830	# default implementation for ->child
1625		1831
1626	our %PID_CB;	1832	our %PID_CB;
1627	our $CHLD_W;	1833	our $CHLD_W;
1628	our $CHLD_DELAY_W;	1834	our $CHLD_DELAY_W;
1629	our $WNOHANG;
1630		1835
1631	# used by many Impl's	1836	# used by many Impl's
1632	sub _emit_childstatus($$) {	1837	sub _emit_childstatus($$) {
1633	my (undef, $rpid, $rstatus) = @_;	1838	my (undef, $rpid, $rstatus) = @_;
1634		1839
…		…
1641	eval q{ # poor man's autoloading {}	1846	eval q{ # poor man's autoloading {}
1642	*_sigchld = sub {	1847	*_sigchld = sub {
1643	my $pid;	1848	my $pid;
1644		1849
1645	AnyEvent->_emit_childstatus ($pid, $?)	1850	AnyEvent->_emit_childstatus ($pid, $?)
1646	while ($pid = waitpid -1, $WNOHANG) > 0;	1851	while ($pid = waitpid -1, WNOHANG) > 0;
1647	};	1852	};
1648		1853
1649	*child = sub {	1854	*child = sub {
1650	my (undef, %arg) = @_;	1855	my (undef, %arg) = @_;
1651		1856
1652	defined (my $pid = $arg{pid} + 0)	1857	my $pid = $arg{pid};
1653	or Carp::croak "required option 'pid' is missing";	1858	my $cb = $arg{cb};
1654		1859
1655	$PID_CB{$pid}{$arg{cb}} = $arg{cb};	1860	$PID_CB{$pid}{$cb+0} = $cb;
1656
1657	# WNOHANG is almost cetrainly 1 everywhere
1658	$WNOHANG \|\|= $^O =~ /^(?:openbsd\|netbsd\|linux\|freebsd\|cygwin\|MSWin32)$/
1659	? 1
1660	: eval { local $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } \|\| 1;
1661		1861
1662	unless ($CHLD_W) {	1862	unless ($CHLD_W) {
1663	$CHLD_W = AE::signal CHLD => \&_sigchld;	1863	$CHLD_W = AE::signal CHLD => \&_sigchld;
1664	# child could be a zombie already, so make at least one round	1864	# child could be a zombie already, so make at least one round
1665	&_sigchld;	1865	&_sigchld;
1666	}	1866	}
1667		1867
1668	bless [$pid, $arg{cb}], "AnyEvent::Base::child"	1868	bless [$pid, $cb+0], "AnyEvent::Base::child"
1669	};	1869	};
1670		1870
1671	*AnyEvent::Base::child::DESTROY = sub {	1871	*AnyEvent::Base::child::DESTROY = sub {
1672	my ($pid, $cb) = @{$_[0]};	1872	my ($pid, $icb) = @{$_[0]};
1673		1873
1674	delete $PID_CB{$pid}{$cb};	1874	delete $PID_CB{$pid}{$icb};
1675	delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} };	1875	delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} };
1676		1876
1677	undef $CHLD_W unless keys %PID_CB;	1877	undef $CHLD_W unless keys %PID_CB;
1678	};	1878	};
1679	};	1879	};
…		…
1692		1892
1693	my ($cb, $w, $rcb) = $arg{cb};	1893	my ($cb, $w, $rcb) = $arg{cb};
1694		1894
1695	$rcb = sub {	1895	$rcb = sub {
1696	if ($cb) {	1896	if ($cb) {
1697	$w = _time;	1897	$w = AE::time;
1698	&$cb;	1898	&$cb;
1699	$w = _time - $w;	1899	$w = AE::time - $w;
1700		1900
1701	# never use more then 50% of the time for the idle watcher,	1901	# never use more then 50% of the time for the idle watcher,
1702	# within some limits	1902	# within some limits
1703	$w = 0.0001 if $w < 0.0001;	1903	$w = 0.0001 if $w < 0.0001;
1704	$w = 5 if $w > 5;	1904	$w = 5 if $w > 5;
…		…
1727		1927
1728	package AnyEvent::CondVar;	1928	package AnyEvent::CondVar;
1729		1929
1730	our @ISA = AnyEvent::CondVar::Base::;	1930	our @ISA = AnyEvent::CondVar::Base::;
1731		1931
		1932	# only to be used for subclassing
		1933	sub new {
		1934	my $class = shift;
		1935	bless AnyEvent->condvar (@_), $class
		1936	}
		1937
1732	package AnyEvent::CondVar::Base;	1938	package AnyEvent::CondVar::Base;
1733		1939
1734	#use overload	1940	#use overload
1735	# '&{}' => sub { my $self = shift; sub { $self->send (@_) } },	1941	# '&{}' => sub { my $self = shift; sub { $self->send (@_) } },
1736	# fallback => 1;	1942	# fallback => 1;
…		…
1745		1951
1746	sub _send {	1952	sub _send {
1747	# nop	1953	# nop
1748	}	1954	}
1749		1955
		1956	sub _wait {
		1957	AnyEvent->_poll until $_[0]{_ae_sent};
		1958	}
		1959
1750	sub send {	1960	sub send {
1751	my $cv = shift;	1961	my $cv = shift;
1752	$cv->{_ae_sent} = [@_];	1962	$cv->{_ae_sent} = [@_];
1753	(delete $cv->{_ae_cb})->($cv) if $cv->{_ae_cb};	1963	(delete $cv->{_ae_cb})->($cv) if $cv->{_ae_cb};
1754	$cv->_send;	1964	$cv->_send;
…		…
1761		1971
1762	sub ready {	1972	sub ready {
1763	$_[0]{_ae_sent}	1973	$_[0]{_ae_sent}
1764	}	1974	}
1765		1975
1766	sub _wait {
1767	$WAITING
1768	and !$_[0]{_ae_sent}
1769	and Carp::croak "AnyEvent::CondVar: recursive blocking wait detected";
1770
1771	local $WAITING = 1;
1772	AnyEvent->one_event while !$_[0]{_ae_sent};
1773	}
1774
1775	sub recv {	1976	sub recv {
		1977	unless ($_[0]{_ae_sent}) {
		1978	$WAITING
		1979	and Carp::croak "AnyEvent::CondVar: recursive blocking wait attempted";
		1980
		1981	local $WAITING = 1;
1776	$_[0]->_wait;	1982	$_[0]->_wait;
		1983	}
1777		1984
1778	Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak};	1985	$_[0]{_ae_croak}
1779	wantarray ? @{ $_[0]{_ae_sent} } : $_[0]{_ae_sent}[0]	1986	and Carp::croak $_[0]{_ae_croak};
		1987
		1988	wantarray
		1989	? @{ $_[0]{_ae_sent} }
		1990	: $_[0]{_ae_sent}[0]
1780	}	1991	}
1781		1992
1782	sub cb {	1993	sub cb {
1783	my $cv = shift;	1994	my $cv = shift;
1784		1995
…		…
1800	&{ $_[0]{_ae_end_cb} \|\| sub { $_[0]->send } };	2011	&{ $_[0]{_ae_end_cb} \|\| sub { $_[0]->send } };
1801	}	2012	}
1802		2013
1803	# undocumented/compatibility with pre-3.4	2014	# undocumented/compatibility with pre-3.4
1804	*broadcast = \&send;	2015	*broadcast = \&send;
1805	*wait = \&_wait;	2016	*wait = \&recv;
1806		2017
1807	=head1 ERROR AND EXCEPTION HANDLING	2018	=head1 ERROR AND EXCEPTION HANDLING
1808		2019
1809	In general, AnyEvent does not do any error handling - it relies on the	2020	In general, AnyEvent does not do any error handling - it relies on the
1810	caller to do that if required. The L<AnyEvent::Strict> module (see also	2021	caller to do that if required. The L<AnyEvent::Strict> module (see also
…		…
1822	$Event/EV::DIED->() >>, L<Glib> uses C<< install_exception_handler >> and	2033	$Event/EV::DIED->() >>, L<Glib> uses C<< install_exception_handler >> and
1823	so on.	2034	so on.
1824		2035
1825	=head1 ENVIRONMENT VARIABLES	2036	=head1 ENVIRONMENT VARIABLES
1826		2037
1827	The following environment variables are used by this module or its	2038	AnyEvent supports a number of environment variables that tune the
1828	submodules.	2039	runtime behaviour. They are usually evaluated when AnyEvent is
		2040	loaded, initialised, or a submodule that uses them is loaded. Many of
		2041	them also cause AnyEvent to load additional modules - for example,
		2042	C<PERL_ANYEVENT_DEBUG_WRAP> causes the L<AnyEvent::Debug> module to be
		2043	loaded.
1829		2044
1830	Note that AnyEvent will remove I<all> environment variables starting with	2045	All the environment variables documented here start with
1831	C<PERL_ANYEVENT_> from C<%ENV> when it is loaded while taint mode is	2046	C<PERL_ANYEVENT_>, which is what AnyEvent considers its own
1832	enabled.	2047	namespace. Other modules are encouraged (but by no means required) to use
		2048	C<PERL_ANYEVENT_SUBMODULE> if they have registered the AnyEvent::Submodule
		2049	namespace on CPAN, for any submodule. For example, L<AnyEvent::HTTP> could
		2050	be expected to use C<PERL_ANYEVENT_HTTP_PROXY> (it should not access env
		2051	variables starting with C<AE_>, see below).
		2052
		2053	All variables can also be set via the C<AE_> prefix, that is, instead
		2054	of setting C<PERL_ANYEVENT_VERBOSE> you can also set C<AE_VERBOSE>. In
		2055	case there is a clash btween anyevent and another program that uses
		2056	C<AE_something> you can set the corresponding C<PERL_ANYEVENT_something>
		2057	variable to the empty string, as those variables take precedence.
		2058
		2059	When AnyEvent is first loaded, it copies all C<AE_xxx> env variables
		2060	to their C<PERL_ANYEVENT_xxx> counterpart unless that variable already
		2061	exists. If taint mode is on, then AnyEvent will remove I<all> environment
		2062	variables starting with C<PERL_ANYEVENT_> from C<%ENV> (or replace them
		2063	with C<undef> or the empty string, if the corresaponding C<AE_> variable
		2064	is set).
		2065
		2066	The exact algorithm is currently:
		2067
		2068	1. if taint mode enabled, delete all PERL_ANYEVENT_xyz variables from %ENV
		2069	2. copy over AE_xyz to PERL_ANYEVENT_xyz unless the latter alraedy exists
		2070	3. if taint mode enabled, set all PERL_ANYEVENT_xyz variables to undef.
		2071
		2072	This ensures that child processes will not see the C<AE_> variables.
		2073
		2074	The following environment variables are currently known to AnyEvent:
1833		2075
1834	=over 4	2076	=over 4
1835		2077
1836	=item C<PERL_ANYEVENT_VERBOSE>	2078	=item C<PERL_ANYEVENT_VERBOSE>
1837		2079
1838	By default, AnyEvent will be completely silent except in fatal	2080	By default, AnyEvent will only log messages with loglevel C<3>
1839	conditions. You can set this environment variable to make AnyEvent more	2081	(C<critical>) or higher (see L<AnyEvent::Log>). You can set this
		2082	environment variable to a numerical loglevel to make AnyEvent more (or
1840	talkative.	2083	less) talkative.
1841		2084
		2085	If you want to do more than just set the global logging level
		2086	you should have a look at C<PERL_ANYEVENT_LOG>, which allows much more
		2087	complex specifications.
		2088
		2089	When set to C<0> (C<off>), then no messages whatsoever will be logged with
		2090	the default logging settings.
		2091
1842	When set to C<1> or higher, causes AnyEvent to warn about unexpected	2092	When set to C<5> or higher (C<warn>), causes AnyEvent to warn about
1843	conditions, such as not being able to load the event model specified by	2093	unexpected conditions, such as not being able to load the event model
1844	C<PERL_ANYEVENT_MODEL>.	2094	specified by C<PERL_ANYEVENT_MODEL>, or a guard callback throwing an
		2095	exception - this is the minimum recommended level.
1845		2096
1846	When set to C<2> or higher, cause AnyEvent to report to STDERR which event	2097	When set to C<7> or higher (info), cause AnyEvent to report which event model it
1847	model it chooses.	2098	chooses.
1848		2099
1849	When set to C<8> or higher, then AnyEvent will report extra information on	2100	When set to C<8> or higher (debug), then AnyEvent will report extra information on
1850	which optional modules it loads and how it implements certain features.	2101	which optional modules it loads and how it implements certain features.
		2102
		2103	=item C<PERL_ANYEVENT_LOG>
		2104
		2105	Accepts rather complex logging specifications. For example, you could log
		2106	all C<debug> messages of some module to stderr, warnings and above to
		2107	stderr, and errors and above to syslog, with:
		2108
		2109	PERL_ANYEVENT_LOG=Some::Module=debug,+log:filter=warn,+%syslog:%syslog=error,syslog
		2110
		2111	For the rather extensive details, see L<AnyEvent::Log>.
		2112
		2113	This variable is evaluated when AnyEvent (or L<AnyEvent::Log>) is loaded,
		2114	so will take effect even before AnyEvent has initialised itself.
		2115
		2116	Note that specifying this environment variable causes the L<AnyEvent::Log>
		2117	module to be loaded, while C<PERL_ANYEVENT_VERBOSE> does not, so only
		2118	using the latter saves a few hundred kB of memory until the first message
		2119	is being logged.
1851		2120
1852	=item C<PERL_ANYEVENT_STRICT>	2121	=item C<PERL_ANYEVENT_STRICT>
1853		2122
1854	AnyEvent does not do much argument checking by default, as thorough	2123	AnyEvent does not do much argument checking by default, as thorough
1855	argument checking is very costly. Setting this variable to a true value	2124	argument checking is very costly. Setting this variable to a true value
…		…
1862	Unlike C<use strict> (or its modern cousin, C<< use L<common::sense>	2131	Unlike C<use strict> (or its modern cousin, C<< use L<common::sense>
1863	>>, it is definitely recommended to keep it off in production. Keeping	2132	>>, it is definitely recommended to keep it off in production. Keeping
1864	C<PERL_ANYEVENT_STRICT=1> in your environment while developing programs	2133	C<PERL_ANYEVENT_STRICT=1> in your environment while developing programs
1865	can be very useful, however.	2134	can be very useful, however.
1866		2135
		2136	=item C<PERL_ANYEVENT_DEBUG_SHELL>
		2137
		2138	If this env variable is nonempty, then its contents will be interpreted by
		2139	C<AnyEvent::Socket::parse_hostport> and C<AnyEvent::Debug::shell> (after
		2140	replacing every occurance of C<$$> by the process pid). The shell object
		2141	is saved in C<$AnyEvent::Debug::SHELL>.
		2142
		2143	This happens when the first watcher is created.
		2144
		2145	For example, to bind a debug shell on a unix domain socket in
		2146	F<< /tmp/debug<pid>.sock >>, you could use this:
		2147
		2148	PERL_ANYEVENT_DEBUG_SHELL=/tmp/debug\$\$.sock perlprog
		2149	# connect with e.g.: socat readline /tmp/debug123.sock
		2150
		2151	Or to bind to tcp port 4545 on localhost:
		2152
		2153	PERL_ANYEVENT_DEBUG_SHELL=127.0.0.1:4545 perlprog
		2154	# connect with e.g.: telnet localhost 4545
		2155
		2156	Note that creating sockets in F</tmp> or on localhost is very unsafe on
		2157	multiuser systems.
		2158
		2159	=item C<PERL_ANYEVENT_DEBUG_WRAP>
		2160
		2161	Can be set to C<0>, C<1> or C<2> and enables wrapping of all watchers for
		2162	debugging purposes. See C<AnyEvent::Debug::wrap> for details.
		2163
1867	=item C<PERL_ANYEVENT_MODEL>	2164	=item C<PERL_ANYEVENT_MODEL>
1868		2165
1869	This can be used to specify the event model to be used by AnyEvent, before	2166	This can be used to specify the event model to be used by AnyEvent, before
1870	auto detection and -probing kicks in. It must be a string consisting	2167	auto detection and -probing kicks in.
1871	entirely of ASCII letters. The string C<AnyEvent::Impl::> gets prepended	2168
		2169	It normally is a string consisting entirely of ASCII letters (e.g. C<EV>
		2170	or C<IOAsync>). The string C<AnyEvent::Impl::> gets prepended and the
1872	and the resulting module name is loaded and if the load was successful,	2171	resulting module name is loaded and - if the load was successful - used as
1873	used as event model. If it fails to load AnyEvent will proceed with	2172	event model backend. If it fails to load then AnyEvent will proceed with
1874	auto detection and -probing.	2173	auto detection and -probing.
1875		2174
1876	This functionality might change in future versions.	2175	If the string ends with C<::> instead (e.g. C<AnyEvent::Impl::EV::>) then
		2176	nothing gets prepended and the module name is used as-is (hint: C<::> at
		2177	the end of a string designates a module name and quotes it appropriately).
1877		2178
1878	For example, to force the pure perl model (L<AnyEvent::Impl::Perl>) you	2179	For example, to force the pure perl model (L<AnyEvent::Loop::Perl>) you
1879	could start your program like this:	2180	could start your program like this:
1880		2181
1881	PERL_ANYEVENT_MODEL=Perl perl ...	2182	PERL_ANYEVENT_MODEL=Perl perl ...
1882		2183
1883	=item C<PERL_ANYEVENT_PROTOCOLS>	2184	=item C<PERL_ANYEVENT_PROTOCOLS>
…		…
1899	but support both and try to use both. C<PERL_ANYEVENT_PROTOCOLS=ipv4>	2200	but support both and try to use both. C<PERL_ANYEVENT_PROTOCOLS=ipv4>
1900	- only support IPv4, never try to resolve or contact IPv6	2201	- only support IPv4, never try to resolve or contact IPv6
1901	addresses. C<PERL_ANYEVENT_PROTOCOLS=ipv6,ipv4> support either IPv4 or	2202	addresses. C<PERL_ANYEVENT_PROTOCOLS=ipv6,ipv4> support either IPv4 or
1902	IPv6, but prefer IPv6 over IPv4.	2203	IPv6, but prefer IPv6 over IPv4.
1903		2204
		2205	=item C<PERL_ANYEVENT_HOSTS>
		2206
		2207	This variable, if specified, overrides the F</etc/hosts> file used by
		2208	L<AnyEvent::Socket>C<::resolve_sockaddr>, i.e. hosts aliases will be read
		2209	from that file instead.
		2210
1904	=item C<PERL_ANYEVENT_EDNS0>	2211	=item C<PERL_ANYEVENT_EDNS0>
1905		2212
1906	Used by L<AnyEvent::DNS> to decide whether to use the EDNS0 extension	2213	Used by L<AnyEvent::DNS> to decide whether to use the EDNS0 extension for
1907	for DNS. This extension is generally useful to reduce DNS traffic, but	2214	DNS. This extension is generally useful to reduce DNS traffic, especially
1908	some (broken) firewalls drop such DNS packets, which is why it is off by	2215	when DNSSEC is involved, but some (broken) firewalls drop such DNS
1909	default.	2216	packets, which is why it is off by default.
1910		2217
1911	Setting this variable to C<1> will cause L<AnyEvent::DNS> to announce	2218	Setting this variable to C<1> will cause L<AnyEvent::DNS> to announce
1912	EDNS0 in its DNS requests.	2219	EDNS0 in its DNS requests.
1913		2220
1914	=item C<PERL_ANYEVENT_MAX_FORKS>	2221	=item C<PERL_ANYEVENT_MAX_FORKS>
…		…
1922	resolver - this is the maximum number of parallel DNS requests that are	2229	resolver - this is the maximum number of parallel DNS requests that are
1923	sent to the DNS server.	2230	sent to the DNS server.
1924		2231
1925	=item C<PERL_ANYEVENT_RESOLV_CONF>	2232	=item C<PERL_ANYEVENT_RESOLV_CONF>
1926		2233
1927	The file to use instead of F</etc/resolv.conf> (or OS-specific	2234	The absolute path to a F<resolv.conf>-style file to use instead of
1928	configuration) in the default resolver. When set to the empty string, no	2235	F</etc/resolv.conf> (or the OS-specific configuration) in the default
1929	default config will be used.	2236	resolver, or the empty string to select the default configuration.
1930		2237
1931	=item C<PERL_ANYEVENT_CA_FILE>, C<PERL_ANYEVENT_CA_PATH>.	2238	=item C<PERL_ANYEVENT_CA_FILE>, C<PERL_ANYEVENT_CA_PATH>.
1932		2239
1933	When neither C<ca_file> nor C<ca_path> was specified during	2240	When neither C<ca_file> nor C<ca_path> was specified during
1934	L<AnyEvent::TLS> context creation, and either of these environment	2241	L<AnyEvent::TLS> context creation, and either of these environment
1935	variables exist, they will be used to specify CA certificate locations	2242	variables are nonempty, they will be used to specify CA certificate
1936	instead of a system-dependent default.	2243	locations instead of a system-dependent default.
1937		2244
1938	=item C<PERL_ANYEVENT_AVOID_GUARD> and C<PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT>	2245	=item C<PERL_ANYEVENT_AVOID_GUARD> and C<PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT>
1939		2246
1940	When these are set to C<1>, then the respective modules are not	2247	When these are set to C<1>, then the respective modules are not
1941	loaded. Mostly good for testing AnyEvent itself.	2248	loaded. Mostly good for testing AnyEvent itself.
…		…
2273	(even when used without AnyEvent), but most event loops have acceptable	2580	(even when used without AnyEvent), but most event loops have acceptable
2274	performance with or without AnyEvent.	2581	performance with or without AnyEvent.
2275		2582
2276	=item * The overhead AnyEvent adds is usually much smaller than the overhead of	2583	=item * The overhead AnyEvent adds is usually much smaller than the overhead of
2277	the actual event loop, only with extremely fast event loops such as EV	2584	the actual event loop, only with extremely fast event loops such as EV
2278	adds AnyEvent significant overhead.	2585	does AnyEvent add significant overhead.
2279		2586
2280	=item * You should avoid POE like the plague if you want performance or	2587	=item * You should avoid POE like the plague if you want performance or
2281	reasonable memory usage.	2588	reasonable memory usage.
2282		2589
2283	=back	2590	=back
…		…
2582		2889
2583	=item L<Time::HiRes>	2890	=item L<Time::HiRes>
2584		2891
2585	This module is part of perl since release 5.008. It will be used when the	2892	This module is part of perl since release 5.008. It will be used when the
2586	chosen event library does not come with a timing source of its own. The	2893	chosen event library does not come with a timing source of its own. The
2587	pure-perl event loop (L<AnyEvent::Impl::Perl>) will additionally use it to	2894	pure-perl event loop (L<AnyEvent::Loop>) will additionally load it to
2588	try to use a monotonic clock for timing stability.	2895	try to use a monotonic clock for timing stability.
2589		2896
2590	=back	2897	=back
2591		2898
2592		2899
…		…
2654	pronounced).	2961	pronounced).
2655		2962
2656		2963
2657	=head1 SEE ALSO	2964	=head1 SEE ALSO
2658		2965
2659	Utility functions: L<AnyEvent::Util>.	2966	Tutorial/Introduction: L<AnyEvent::Intro>.
2660		2967
2661	Event modules: L<EV>, L<EV::Glib>, L<Glib::EV>, L<Event>, L<Glib::Event>,	2968	FAQ: L<AnyEvent::FAQ>.
2662	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.	2969
		2970	Utility functions: L<AnyEvent::Util> (misc. grab-bag), L<AnyEvent::Log>
		2971	(simply logging).
		2972
		2973	Development/Debugging: L<AnyEvent::Strict> (stricter checking),
		2974	L<AnyEvent::Debug> (interactive shell, watcher tracing).
		2975
		2976	Supported event modules: L<AnyEvent::Loop>, L<EV>, L<EV::Glib>,
		2977	L<Glib::EV>, L<Event>, L<Glib::Event>, L<Glib>, L<Tk>, L<Event::Lib>,
		2978	L<Qt>, L<POE>, L<FLTK>.
2663		2979
2664	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,	2980	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,
2665	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,	2981	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,
2666	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,	2982	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,
2667	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>.	2983	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>,
		2984	L<AnyEvent::Impl::FLTK>.
2668		2985
2669	Non-blocking file handles, sockets, TCP clients and	2986	Non-blocking handles, pipes, stream sockets, TCP clients and
2670	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.	2987	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.
2671		2988
2672	Asynchronous DNS: L<AnyEvent::DNS>.	2989	Asynchronous DNS: L<AnyEvent::DNS>.
2673		2990
2674	Coroutine support: L<Coro>, L<Coro::AnyEvent>, L<Coro::EV>,	2991	Thread support: L<Coro>, L<Coro::AnyEvent>, L<Coro::EV>, L<Coro::Event>.
2675	L<Coro::Event>,
2676		2992
2677	Nontrivial usage examples: L<AnyEvent::GPSD>, L<AnyEvent::XMPP>,	2993	Nontrivial usage examples: L<AnyEvent::GPSD>, L<AnyEvent::IRC>,
2678	L<AnyEvent::HTTP>.	2994	L<AnyEvent::HTTP>.
2679		2995
2680		2996
2681	=head1 AUTHOR	2997	=head1 AUTHOR
2682		2998

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing AnyEvent/lib/AnyEvent.pm (file contents): Revision 1.330 by root, Tue Aug 31 00:59:55 2010 UTC vs. Revision 1.386 by root, Mon Sep 26 11:32:19 2011 UTC

Diff Legend

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.330 by root, Tue Aug 31 00:59:55 2010 UTC vs.
Revision 1.386 by root, Mon Sep 26 11:32:19 2011 UTC