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

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.252 by root, Tue Jul 21 03:30:02 2009 UTC vs.
Revision 1.266 by root, Thu Jul 30 03:41:56 2009 UTC

…		…
1	=head1 NAME	1	=head1 NAME
2		2
3	AnyEvent - events independent of event loop implementation	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
47		47
48	There is a mailinglist for discussing all things AnyEvent, and an IRC	48	There is a mailinglist for discussing all things AnyEvent, and an IRC
49	channel, too.	49	channel, too.
50		50
51	See the AnyEvent project page at the B<Schmorpforge Ta-Sa Software	51	See the AnyEvent project page at the B<Schmorpforge Ta-Sa Software
52	Respository>, at L<http://anyevent.schmorp.de>, for more info.	52	Repository>, at L<http://anyevent.schmorp.de>, for more info.
53		53
54	=head1 WHY YOU SHOULD USE THIS MODULE (OR NOT)	54	=head1 WHY YOU SHOULD USE THIS MODULE (OR NOT)
55		55
56	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
57	nowadays. So what is different about AnyEvent?	57	nowadays. So what is different about AnyEvent?
…		…
181	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
182	declared.	182	declared.
183		183
184	=head2 I/O WATCHERS	184	=head2 I/O WATCHERS
185		185
		186	$w = AnyEvent->io (
		187	fh => <filehandle_or_fileno>,
		188	poll => <"r" or "w">,
		189	cb => <callback>,
		190	);
		191
186	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
187	with the following mandatory key-value pairs as arguments:	193	with the following mandatory key-value pairs as arguments:
188		194
189	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
190	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
…		…
219	undef $w;	225	undef $w;
220	});	226	});
221		227
222	=head2 TIME WATCHERS	228	=head2 TIME WATCHERS
223		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
224	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 >>
225	method with the following mandatory arguments:	239	method with the following mandatory arguments:
226		240
227	C<after> specifies after how many seconds (fractional values are	241	C<after> specifies after how many seconds (fractional values are
228	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
…		…
354	Note that updating the time I<might> cause some events to be handled.	368	Note that updating the time I<might> cause some events to be handled.
355		369
356	=back	370	=back
357		371
358	=head2 SIGNAL WATCHERS	372	=head2 SIGNAL WATCHERS
		373
		374	$w = AnyEvent->signal (signal => <uppercase_signal_name>, cb => <callback>);
359		375
360	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
361	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
362	callback to be invoked whenever a signal occurs.	378	callback to be invoked whenever a signal occurs.
363		379
…		…
398	currently, as POE does it's own workaround with one-second latency). With	414	currently, as POE does it's own workaround with one-second latency). With
399	those, you just have to suffer the delays.	415	those, you just have to suffer the delays.
400		416
401	=head2 CHILD PROCESS WATCHERS	417	=head2 CHILD PROCESS WATCHERS
402		418
		419	$w = AnyEvent->child (pid => <process id>, cb => <callback>);
		420
403	You can also watch on a child process exit and catch its exit status.	421	You can also watch on a child process exit and catch its exit status.
404		422
405	The child process is specified by the C<pid> argument (if set to C<0>, it	423	The child process is specified by the C<pid> argument (one some backends,
406	watches for any child process exit). The watcher will triggered only when	424	using C<0> watches for any child process exit, on others this will
407	the child process has finished and an exit status is available, not on	425	croak). The watcher will be triggered only when the child process has
408	any trace events (stopped/continued).	426	finished and an exit status is available, not on any trace events
		427	(stopped/continued).
409		428
410	The callback will be called with the pid and exit status (as returned by	429	The callback will be called with the pid and exit status (as returned by
411	waitpid), so unlike other watcher types, you I<can> rely on child watcher	430	waitpid), so unlike other watcher types, you I<can> rely on child watcher
412	callback arguments.	431	callback arguments.
413		432
…		…
454	# do something else, then wait for process exit	473	# do something else, then wait for process exit
455	$done->recv;	474	$done->recv;
456		475
457	=head2 IDLE WATCHERS	476	=head2 IDLE WATCHERS
458		477
		478	$w = AnyEvent->idle (cb => <callback>);
		479
459	Sometimes there is a need to do something, but it is not so important	480	Sometimes there is a need to do something, but it is not so important
460	to do it instantly, but only when there is nothing better to do. This	481	to do it instantly, but only when there is nothing better to do. This
461	"nothing better to do" is usually defined to be "no other events need	482	"nothing better to do" is usually defined to be "no other events need
462	attention by the event loop".	483	attention by the event loop".
463		484
…		…
489	});	510	});
490	});	511	});
491		512
492	=head2 CONDITION VARIABLES	513	=head2 CONDITION VARIABLES
493		514
		515	$cv = AnyEvent->condvar;
		516
		517	$cv->send (<list>);
		518	my @res = $cv->recv;
		519
494	If you are familiar with some event loops you will know that all of them	520	If you are familiar with some event loops you will know that all of them
495	require you to run some blocking "loop", "run" or similar function that	521	require you to run some blocking "loop", "run" or similar function that
496	will actively watch for new events and call your callbacks.	522	will actively watch for new events and call your callbacks.
497		523
498	AnyEvent is slightly different: it expects somebody else to run the event	524	AnyEvent is slightly different: it expects somebody else to run the event
…		…
796		822
797	AnyEvent::Impl::Glib based on Glib, slow but very stable.	823	AnyEvent::Impl::Glib based on Glib, slow but very stable.
798	AnyEvent::Impl::Tk based on Tk, very broken.	824	AnyEvent::Impl::Tk based on Tk, very broken.
799	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.	825	AnyEvent::Impl::EventLib based on Event::Lib, leaks memory and worse.
800	AnyEvent::Impl::POE based on POE, very slow, some limitations.	826	AnyEvent::Impl::POE based on POE, very slow, some limitations.
		827	AnyEvent::Impl::Irssi used when running within irssi.
801		828
802	=item Backends with special needs.	829	=item Backends with special needs.
803		830
804	Qt requires the Qt::Application to be instantiated first, but will	831	Qt requires the Qt::Application to be instantiated first, but will
805	otherwise be picked up automatically. As long as the main program	832	otherwise be picked up automatically. As long as the main program
…		…
1084		1111
1085	BEGIN { AnyEvent::common_sense }	1112	BEGIN { AnyEvent::common_sense }
1086		1113
1087	use Carp ();	1114	use Carp ();
1088		1115
1089	our $VERSION = 4.86;	1116	our $VERSION = 4.881;
1090	our $MODEL;	1117	our $MODEL;
1091		1118
1092	our $AUTOLOAD;	1119	our $AUTOLOAD;
1093	our @ISA;	1120	our @ISA;
1094		1121
…		…
1119	for reverse split /\s,\s/,	1146	for reverse split /\s,\s/,
1120	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";	1147	$ENV{PERL_ANYEVENT_PROTOCOLS} \|\| "ipv4,ipv6";
1121	}	1148	}
1122		1149
1123	my @models = (	1150	my @models = (
1124	[EV:: => AnyEvent::Impl::EV::],	1151	[EV:: => AnyEvent::Impl::EV:: , 1],
1125	[Event:: => AnyEvent::Impl::Event::],	1152	[Event:: => AnyEvent::Impl::Event::, 1],
1126	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl::],	1153	[AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl:: , 1],
1127	# everything below here will not be autoprobed	1154	# everything below here will not (normally) be autoprobed
1128	# as the pureperl backend should work everywhere	1155	# as the pureperl backend should work everywhere
1129	# and is usually faster	1156	# and is usually faster
1130	[Glib:: => AnyEvent::Impl::Glib::], # becomes extremely slow with many watchers	1157	[Glib:: => AnyEvent::Impl::Glib:: , 1], # becomes extremely slow with many watchers
1131	[Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy	1158	[Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy
		1159	[Irssi:: => AnyEvent::Impl::Irssi::], # Irssi has a bogus "Event" package
1132	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles	1160	[Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles
1133	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program	1161	[Qt:: => AnyEvent::Impl::Qt::], # requires special main program
1134	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza	1162	[POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza
1135	[Wx:: => AnyEvent::Impl::POE::],	1163	[Wx:: => AnyEvent::Impl::POE::],
1136	[Prima:: => AnyEvent::Impl::POE::],	1164	[Prima:: => AnyEvent::Impl::POE::],
1137	# IO::Async is just too broken - we would need workarounds for its	1165	# IO::Async is just too broken - we would need workarounds for its
1138	# byzantine signal and broken child handling, among others.	1166	# byzantine signal and broken child handling, among others.
1139	# IO::Async is rather hard to detect, as it doesn't have any	1167	# IO::Async is rather hard to detect, as it doesn't have any
1140	# obvious default class.	1168	# obvious default class.
1141	# [IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program	1169	# [0, IO::Async:: => AnyEvent::Impl::IOAsync::], # requires special main program
1142	# [IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program	1170	# [0, IO::Async::Loop:: => AnyEvent::Impl::IOAsync::], # requires special main program
1143	# [IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program	1171	# [0, IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program
1144	);	1172	);
1145		1173
1146	our %method = map +($_ => 1),	1174	our %method = map +($_ => 1),
1147	qw(io timer time now now_update signal child idle condvar one_event DESTROY);	1175	qw(io timer time now now_update signal child idle condvar one_event DESTROY);
1148		1176
…		…
1152	my ($cb) = @_;	1180	my ($cb) = @_;
1153		1181
1154	if ($MODEL) {	1182	if ($MODEL) {
1155	$cb->();	1183	$cb->();
1156		1184
1157	1	1185	undef
1158	} else {	1186	} else {
1159	push @post_detect, $cb;	1187	push @post_detect, $cb;
1160		1188
1161	defined wantarray	1189	defined wantarray
1162	? bless \$cb, "AnyEvent::Util::postdetect"	1190	? bless \$cb, "AnyEvent::Util::postdetect"
…		…
1194	}	1222	}
1195	}	1223	}
1196	}	1224	}
1197		1225
1198	unless ($MODEL) {	1226	unless ($MODEL) {
1199	# try to load a model	1227	# try to autoload a model
1200
1201	for (@REGISTRY, @models) {	1228	for (@REGISTRY, @models) {
1202	my ($package, $model) = @$_;	1229	my ($package, $model, $autoload) = @$_;
		1230	if (
		1231	$autoload
1203	if (eval "require $package"	1232	and eval "require $package"
1204	and ${"$package\::VERSION"} > 0	1233	and ${"$package\::VERSION"} > 0
1205	and eval "require $model") {	1234	and eval "require $model"
		1235	) {
1206	$MODEL = $model;	1236	$MODEL = $model;
1207	warn "AnyEvent: autoprobed model '$model', using it.\n" if $VERBOSE >= 2;	1237	warn "AnyEvent: autoloaded model '$model', using it.\n" if $VERBOSE >= 2;
1208	last;	1238	last;
1209	}	1239	}
1210	}	1240	}
1211		1241
1212	$MODEL	1242	$MODEL
…		…
1284	}	1314	}
1285		1315
1286	# default implementation for ->signal	1316	# default implementation for ->signal
1287		1317
1288	our $HAVE_ASYNC_INTERRUPT;	1318	our $HAVE_ASYNC_INTERRUPT;
		1319
		1320	sub _have_async_interrupt() {
		1321	$HAVE_ASYNC_INTERRUPT = 1*(!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT}
		1322	&& eval "use Async::Interrupt 1.0 (); 1")
		1323	unless defined $HAVE_ASYNC_INTERRUPT;
		1324
		1325	$HAVE_ASYNC_INTERRUPT
		1326	}
		1327
1289	our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);	1328	our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);
1290	our (%SIG_ASY, %SIG_ASY_W);	1329	our (%SIG_ASY, %SIG_ASY_W);
1291	our ($SIG_COUNT, $SIG_TW);	1330	our ($SIG_COUNT, $SIG_TW);
1292		1331
1293	sub _signal_exec {	1332	sub _signal_exec {
…		…
1301	$_->() for values %{ $SIG_CB{$_} \|\| {} };	1340	$_->() for values %{ $SIG_CB{$_} \|\| {} };
1302	}	1341	}
1303	}	1342	}
1304	}	1343	}
1305		1344
1306	# install a dumym wakeupw atcher to reduce signal catching latency	1345	# install a dummy wakeup watcher to reduce signal catching latency
1307	sub _sig_add() {	1346	sub _sig_add() {
1308	unless ($SIG_COUNT++) {	1347	unless ($SIG_COUNT++) {
1309	# try to align timer on a full-second boundary, if possible	1348	# try to align timer on a full-second boundary, if possible
1310	my $NOW = AnyEvent->now;	1349	my $NOW = AnyEvent->now;
1311		1350
…		…
1320	sub _sig_del {	1359	sub _sig_del {
1321	undef $SIG_TW	1360	undef $SIG_TW
1322	unless --$SIG_COUNT;	1361	unless --$SIG_COUNT;
1323	}	1362	}
1324		1363
		1364	our $_sig_name_init; $_sig_name_init = sub {
		1365	eval q{ # poor man's autoloading
		1366	undef $_sig_name_init;
		1367
		1368	if (_have_async_interrupt) {
		1369	*sig2num = \&Async::Interrupt::sig2num;
		1370	*sig2name = \&Async::Interrupt::sig2name;
		1371	} else {
		1372	require Config;
		1373
		1374	my %signame2num;
		1375	@signame2num{ split ' ', $Config::Config{sig_name} }
		1376	= split ' ', $Config::Config{sig_num};
		1377
		1378	my @signum2name;
		1379	@signum2name[values %signame2num] = keys %signame2num;
		1380
		1381	*sig2num = sub($) {
		1382	$_[0] > 0 ? shift : $signame2num{+shift}
		1383	};
		1384	*sig2name = sub ($) {
		1385	$_[0] > 0 ? $signum2name[+shift] : shift
		1386	};
		1387	}
		1388	};
		1389	die if $@;
		1390	};
		1391
		1392	sub sig2num ($) { &$_sig_name_init; &sig2num }
		1393	sub sig2name($) { &$_sig_name_init; &sig2name }
		1394
1325	sub _signal {	1395	sub signal {
		1396	eval q{ # poor man's autoloading {}
		1397	# probe for availability of Async::Interrupt
		1398	if (_have_async_interrupt) {
		1399	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
		1400
		1401	$SIGPIPE_R = new Async::Interrupt::EventPipe;
		1402	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R->fileno, poll => "r", cb => \&_signal_exec);
		1403
		1404	} else {
		1405	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;
		1406
		1407	require Fcntl;
		1408
		1409	if (AnyEvent::WIN32) {
		1410	require AnyEvent::Util;
		1411
		1412	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
		1413	AnyEvent::Util::fh_nonblocking ($SIGPIPE_R, 1) if $SIGPIPE_R;
		1414	AnyEvent::Util::fh_nonblocking ($SIGPIPE_W, 1) if $SIGPIPE_W; # just in case
		1415	} else {
		1416	pipe $SIGPIPE_R, $SIGPIPE_W;
		1417	fcntl $SIGPIPE_R, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_R;
		1418	fcntl $SIGPIPE_W, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_W; # just in case
		1419
		1420	# not strictly required, as $^F is normally 2, but let's make sure...
		1421	fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
		1422	fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
		1423	}
		1424
		1425	$SIGPIPE_R
		1426	or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n";
		1427
		1428	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R, poll => "r", cb => \&_signal_exec);
		1429	}
		1430
		1431	*signal = sub {
1326	my (undef, %arg) = @_;	1432	my (undef, %arg) = @_;
1327		1433
1328	my $signal = uc $arg{signal}	1434	my $signal = uc $arg{signal}
1329	or Carp::croak "required option 'signal' is missing";	1435	or Carp::croak "required option 'signal' is missing";
1330		1436
1331	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
1332
1333	if ($HAVE_ASYNC_INTERRUPT) {	1437	if ($HAVE_ASYNC_INTERRUPT) {
1334	# async::interrupt	1438	# async::interrupt
1335		1439
1336	$SIG_ASY{$signal} \|\|= do {	1440	$signal = sig2num $signal;
1337	my $asy = new Async::Interrupt	1441	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		1442
		1443	$SIG_ASY{$signal} \|\|= new Async::Interrupt
1338	cb => sub { undef $SIG_EV{$signal} },	1444	cb => sub { undef $SIG_EV{$signal} },
1339	signal => $signal,	1445	signal => $signal,
1340	pipe => [$SIGPIPE_R->filenos],	1446	pipe => [$SIGPIPE_R->filenos],
		1447	pipe_autodrain => 0,
		1448	;
		1449
		1450	} else {
		1451	# pure perl
		1452
		1453	# AE::Util has been loaded in signal
		1454	$signal = sig2name $signal;
		1455	$SIG_CB{$signal}{$arg{cb}} = $arg{cb};
		1456
		1457	$SIG{$signal} \|\|= sub {
		1458	local $!;
		1459	syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;
		1460	undef $SIG_EV{$signal};
		1461	};
		1462
		1463	# can't do signal processing without introducing races in pure perl,
		1464	# so limit the signal latency.
		1465	_sig_add;
1341	;	1466	}
1342	$asy->pipe_autodrain (0);
1343		1467
1344	$asy	1468	bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
1345	};	1469	};
1346		1470
1347	} else {	1471	*AnyEvent::Base::signal::DESTROY = sub {
1348	# pure perl	1472	my ($signal, $cb) = @{$_[0]};
1349		1473
1350	$SIG{$signal} \|\|= sub {	1474	_sig_del;
1351	local $!;	1475
1352	syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;	1476	delete $SIG_CB{$signal}{$cb};
		1477
		1478	$HAVE_ASYNC_INTERRUPT
		1479	? delete $SIG_ASY{$signal}
		1480	: # delete doesn't work with older perls - they then
		1481	# print weird messages, or just unconditionally exit
		1482	# instead of getting the default action.
1353	undef $SIG_EV{$signal};	1483	undef $SIG{$signal}
		1484	unless keys %{ $SIG_CB{$signal} };
1354	};	1485	};
1355
1356	# can't do signal processing without introducing races in pure perl,
1357	# so limit the signal latency.
1358	_sig_add;
1359	}	1486	};
1360		1487	die if $@;
1361	bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
1362	}
1363
1364	sub signal {
1365	# probe for availability of Async::Interrupt
1366	if (!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT} && eval "use Async::Interrupt 0.6 (); 1") {
1367	warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
1368
1369	$HAVE_ASYNC_INTERRUPT = 1;
1370	$SIGPIPE_R = new Async::Interrupt::EventPipe;
1371	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R->fileno, poll => "r", cb => \&_signal_exec);
1372
1373	} else {
1374	warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;
1375
1376	require Fcntl;
1377
1378	if (AnyEvent::WIN32) {
1379	require AnyEvent::Util;
1380
1381	($SIGPIPE_R, $SIGPIPE_W) = AnyEvent::Util::portable_pipe ();
1382	AnyEvent::Util::fh_nonblocking ($SIGPIPE_R) if $SIGPIPE_R;
1383	AnyEvent::Util::fh_nonblocking ($SIGPIPE_W) if $SIGPIPE_W; # just in case
1384	} else {
1385	pipe $SIGPIPE_R, $SIGPIPE_W;
1386	fcntl $SIGPIPE_R, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_R;
1387	fcntl $SIGPIPE_W, &Fcntl::F_SETFL, &Fcntl::O_NONBLOCK if $SIGPIPE_W; # just in case
1388
1389	# not strictly required, as $^F is normally 2, but let's make sure...
1390	fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
1391	fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC;
1392	}
1393
1394	$SIGPIPE_R
1395	or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n";
1396
1397	$SIG_IO = AnyEvent->io (fh => $SIGPIPE_R, poll => "r", cb => \&_signal_exec);
1398	}
1399
1400	*signal = \&_signal;
1401	&signal	1488	&signal
1402	}
1403
1404	sub AnyEvent::Base::signal::DESTROY {
1405	my ($signal, $cb) = @{$_[0]};
1406
1407	_sig_del;
1408
1409	delete $SIG_CB{$signal}{$cb};
1410
1411	$HAVE_ASYNC_INTERRUPT
1412	? delete $SIG_ASY{$signal}
1413	: # delete doesn't work with older perls - they then
1414	# print weird messages, or just unconditionally exit
1415	# instead of getting the default action.
1416	undef $SIG{$signal}
1417	unless keys %{ $SIG_CB{$signal} };
1418	}	1489	}
1419		1490
1420	# default implementation for ->child	1491	# default implementation for ->child
1421		1492
1422	our %PID_CB;	1493	our %PID_CB;
1423	our $CHLD_W;	1494	our $CHLD_W;
1424	our $CHLD_DELAY_W;	1495	our $CHLD_DELAY_W;
1425	our $WNOHANG;	1496	our $WNOHANG;
1426		1497
		1498	sub _emit_childstatus($$) {
		1499	my (undef, $rpid, $rstatus) = @_;
		1500
		1501	$_->($rpid, $rstatus)
		1502	for values %{ $PID_CB{$rpid} \|\| {} },
		1503	values %{ $PID_CB{0} \|\| {} };
		1504	}
		1505
1427	sub _sigchld {	1506	sub _sigchld {
		1507	my $pid;
		1508
		1509	AnyEvent->_emit_childstatus ($pid, $?)
1428	while (0 < (my $pid = waitpid -1, $WNOHANG)) {	1510	while ($pid = waitpid -1, $WNOHANG) > 0;
1429	$_->($pid, $?)
1430	for values %{ $PID_CB{$pid} \|\| {} },
1431	values %{ $PID_CB{0} \|\| {} };
1432	}
1433	}	1511	}
1434		1512
1435	sub child {	1513	sub child {
1436	my (undef, %arg) = @_;	1514	my (undef, %arg) = @_;
1437		1515
…		…
1569	}	1647	}
1570		1648
1571	# undocumented/compatibility with pre-3.4	1649	# undocumented/compatibility with pre-3.4
1572	*broadcast = \&send;	1650	*broadcast = \&send;
1573	*wait = \&_wait;	1651	*wait = \&_wait;
		1652
		1653	#############################################################################
		1654	# "new" API, currently only emulation of it
		1655	#############################################################################
		1656
		1657	package AE;
		1658
		1659	sub io($$$) {
		1660	AnyEvent->io (fh => $_[0], poll => $_[1] ? "w" : "r", cb => $_[2])
		1661	}
		1662
		1663	sub timer($$$) {
		1664	AnyEvent->timer (after => $_[0], interval => $_[1], cb => $_[2]);
		1665	}
		1666
		1667	sub signal($$) {
		1668	AnyEvent->signal (signal => $_[0], cb => $_[1]);
		1669	}
		1670
		1671	sub child($$) {
		1672	AnyEvent->child (pid => $_[0], cb => $_[1]);
		1673	}
		1674
		1675	sub idle($) {
		1676	AnyEvent->idle (cb => $_[0]);
		1677	}
		1678
		1679	sub cv() {
		1680	AnyEvent->condvar
		1681	}
		1682
		1683	sub now() {
		1684	AnyEvent->now
		1685	}
		1686
		1687	sub now_update() {
		1688	AnyEvent->now_update
		1689	}
		1690
		1691	sub time() {
		1692	AnyEvent->time
		1693	}
1574		1694
1575	=head1 ERROR AND EXCEPTION HANDLING	1695	=head1 ERROR AND EXCEPTION HANDLING
1576		1696
1577	In general, AnyEvent does not do any error handling - it relies on the	1697	In general, AnyEvent does not do any error handling - it relies on the
1578	caller to do that if required. The L<AnyEvent::Strict> module (see also	1698	caller to do that if required. The L<AnyEvent::Strict> module (see also
…		…
2416	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.	2536	L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.
2417		2537
2418	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,	2538	Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,
2419	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,	2539	L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,
2420	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,	2540	L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,
2421	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>.	2541	L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>.
2422		2542
2423	Non-blocking file handles, sockets, TCP clients and	2543	Non-blocking file handles, sockets, TCP clients and
2424	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.	2544	servers: L<AnyEvent::Handle>, L<AnyEvent::Socket>, L<AnyEvent::TLS>.
2425		2545
2426	Asynchronous DNS: L<AnyEvent::DNS>.	2546	Asynchronous DNS: L<AnyEvent::DNS>.

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Comparing AnyEvent/lib/AnyEvent.pm (file contents): Revision 1.252 by root, Tue Jul 21 03:30:02 2009 UTC vs. Revision 1.266 by root, Thu Jul 30 03:41:56 2009 UTC

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Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.252 by root, Tue Jul 21 03:30:02 2009 UTC vs.
Revision 1.266 by root, Thu Jul 30 03:41:56 2009 UTC