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Revision 1.336 by root, Wed Oct 13 19:08:40 2010 UTC vs.
Revision 1.352 by root, Thu Aug 4 09:14:01 2011 UTC

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85that isn't them. What's worse, all the potential users of your 85that isn't them. What's worse, all the potential users of your
86module are I<also> forced to use the same event loop you use. 86module are I<also> forced to use the same event loop you use.
87 87
88AnyEvent is different: AnyEvent + POE works fine. AnyEvent + Glib works 88AnyEvent is different: AnyEvent + POE works fine. AnyEvent + Glib works
89fine. AnyEvent + Tk works fine etc. etc. but none of these work together 89fine. AnyEvent + Tk works fine etc. etc. but none of these work together
90with the rest: POE + IO::Async? No go. Tk + Event? No go. Again: if 90with the rest: POE + EV? No go. Tk + Event? No go. Again: if your module
91your module uses one of those, every user of your module has to use it, 91uses one of those, every user of your module has to use it, too. But if
92too. But if your module uses AnyEvent, it works transparently with all 92your module uses AnyEvent, it works transparently with all event models it
93event models it supports (including stuff like IO::Async, as long as those 93supports (including stuff like IO::Async, as long as those use one of the
94use one of the supported event loops. It is easy to add new event loops 94supported event loops. It is easy to add new event loops to AnyEvent, too,
95to AnyEvent, too, so it is future-proof). 95so it is future-proof).
96 96
97In addition to being free of having to use I<the one and only true event 97In addition to being free of having to use I<the one and only true event
98model>, AnyEvent also is free of bloat and policy: with POE or similar 98model>, AnyEvent also is free of bloat and policy: with POE or similar
99modules, you get an enormous amount of code and strict rules you have to 99modules, you get an enormous amount of code and strict rules you have to
100follow. AnyEvent, on the other hand, is lean and to the point, by only 100follow. AnyEvent, on the other hand, is lean and to the point, by only
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121The interface itself is vaguely similar, but not identical to the L<Event> 121The interface itself is vaguely similar, but not identical to the L<Event>
122module. 122module.
123 123
124During the first call of any watcher-creation method, the module tries 124During the first call of any watcher-creation method, the module tries
125to detect the currently loaded event loop by probing whether one of the 125to detect the currently loaded event loop by probing whether one of the
126following modules is already loaded: L<EV>, L<AnyEvent::Impl::Perl>, 126following modules is already loaded: L<EV>, L<AnyEvent::Loop>,
127L<Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. The first one 127L<Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. The first one
128found is used. If none are detected, the module tries to load the first 128found is used. If none are detected, the module tries to load the first
129four modules in the order given; but note that if L<EV> is not 129four modules in the order given; but note that if L<EV> is not
130available, the pure-perl L<AnyEvent::Impl::Perl> should always work, so 130available, the pure-perl L<AnyEvent::Loop> should always work, so
131the other two are not normally tried. 131the other two are not normally tried.
132 132
133Because AnyEvent first checks for modules that are already loaded, loading 133Because AnyEvent first checks for modules that are already loaded, loading
134an event model explicitly before first using AnyEvent will likely make 134an event model explicitly before first using AnyEvent will likely make
135that model the default. For example: 135that model the default. For example:
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142The I<likely> means that, if any module loads another event model and 142The I<likely> means that, if any module loads another event model and
143starts using it, all bets are off - this case should be very rare though, 143starts using it, all bets are off - this case should be very rare though,
144as very few modules hardcode event loops without announcing this very 144as very few modules hardcode event loops without announcing this very
145loudly. 145loudly.
146 146
147The pure-perl implementation of AnyEvent is called 147The pure-perl implementation of AnyEvent is called C<AnyEvent::Loop>. Like
148C<AnyEvent::Impl::Perl>. Like other event modules you can load it 148other event modules you can load it explicitly and enjoy the high
149explicitly and enjoy the high availability of that event loop :) 149availability of that event loop :)
150 150
151=head1 WATCHERS 151=head1 WATCHERS
152 152
153AnyEvent has the central concept of a I<watcher>, which is an object that 153AnyEvent has the central concept of a I<watcher>, which is an object that
154stores relevant data for each kind of event you are waiting for, such as 154stores relevant data for each kind of event you are waiting for, such as
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356difference between C<< AnyEvent->time >> and C<< AnyEvent->now >> into 356difference between C<< AnyEvent->time >> and C<< AnyEvent->now >> into
357account. 357account.
358 358
359=item AnyEvent->now_update 359=item AnyEvent->now_update
360 360
361Some event loops (such as L<EV> or L<AnyEvent::Impl::Perl>) cache 361Some event loops (such as L<EV> or L<AnyEvent::Loop>) cache the current
362the current time for each loop iteration (see the discussion of L<< 362time for each loop iteration (see the discussion of L<< AnyEvent->now >>,
363AnyEvent->now >>, above). 363above).
364 364
365When a callback runs for a long time (or when the process sleeps), then 365When a callback runs for a long time (or when the process sleeps), then
366this "current" time will differ substantially from the real time, which 366this "current" time will differ substantially from the real time, which
367might affect timers and time-outs. 367might affect timers and time-outs.
368 368
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482thing in an AnyEvent program, you I<have> to create at least one 482thing in an AnyEvent program, you I<have> to create at least one
483watcher before you C<fork> the child (alternatively, you can call 483watcher before you C<fork> the child (alternatively, you can call
484C<AnyEvent::detect>). 484C<AnyEvent::detect>).
485 485
486As most event loops do not support waiting for child events, they will be 486As most event loops do not support waiting for child events, they will be
487emulated by AnyEvent in most cases, in which the latency and race problems 487emulated by AnyEvent in most cases, in which case the latency and race
488mentioned in the description of signal watchers apply. 488problems mentioned in the description of signal watchers apply.
489 489
490Example: fork a process and wait for it 490Example: fork a process and wait for it
491 491
492 my $done = AnyEvent->condvar; 492 my $done = AnyEvent->condvar;
493 493
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860use. If EV is not installed, then AnyEvent will fall back to its own 860use. If EV is not installed, then AnyEvent will fall back to its own
861pure-perl implementation, which is available everywhere as it comes with 861pure-perl implementation, which is available everywhere as it comes with
862AnyEvent itself. 862AnyEvent 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
869These will be used if they are already loaded when the first watcher 869These will be used if they are already loaded when the first watcher
870is created, in which case it is assumed that the application is using 870is created, in which case it is assumed that the application is using
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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.
881 884
882=item Backends with special needs. 885=item Backends with special needs.
883 886
884Qt requires the Qt::Application to be instantiated first, but will 887Qt requires the Qt::Application to be instantiated first, but will
885otherwise be picked up automatically. As long as the main program 888otherwise be picked up automatically. As long as the main program
886instantiates the application before any AnyEvent watchers are created, 889instantiates the application before any AnyEvent watchers are created,
887everything should just work. 890everything should just work.
888 891
889 AnyEvent::Impl::Qt based on Qt. 892 AnyEvent::Impl::Qt based on Qt.
890
891Support for IO::Async can only be partial, as it is too broken and
892architecturally limited to even support the AnyEvent API. It also
893is the only event loop that needs the loop to be set explicitly, so
894it can only be used by a main program knowing about AnyEvent. See
895L<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
901Some event loops can be supported via other modules: 896Some event loops can be supported via other modules:
902 897
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1052modules might create watchers when they are loaded, and AnyEvent will 1047modules might create watchers when they are loaded, and AnyEvent will
1053decide on the event model to use as soon as it creates watchers, and it 1048decide on the event model to use as soon as it creates watchers, and it
1054might choose the wrong one unless you load the correct one yourself. 1049might choose the wrong one unless you load the correct one yourself.
1055 1050
1056You can chose to use a pure-perl implementation by loading the 1051You can chose to use a pure-perl implementation by loading the
1057C<AnyEvent::Impl::Perl> module, which gives you similar behaviour 1052C<AnyEvent::Loop> module, which gives you similar behaviour
1058everywhere, but letting AnyEvent chose the model is generally better. 1053everywhere, but letting AnyEvent chose the model is generally better.
1059 1054
1060=head2 MAINLOOP EMULATION 1055=head2 MAINLOOP EMULATION
1061 1056
1062Sometimes (often for short test scripts, or even standalone programs who 1057Sometimes (often for short test scripts, or even standalone programs who
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1157 1152
1158package AnyEvent; 1153package AnyEvent;
1159 1154
1160# basically a tuned-down version of common::sense 1155# basically a tuned-down version of common::sense
1161sub common_sense { 1156sub common_sense {
1162 # from common:.sense 3.3 1157 # from common:.sense 3.4
1163 ${^WARNING_BITS} ^= ${^WARNING_BITS} ^ "\x3c\x3f\x33\x00\x0f\xf3\x0f\xc0\xf0\xfc\x33\x00"; 1158 ${^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) 1159 # use strict vars subs - NO UTF-8, as Util.pm doesn't like this atm. (uts46data.pl)
1165 $^H |= 0x00000600; 1160 $^H |= 0x00000600;
1166} 1161}
1167 1162
1168BEGIN { AnyEvent::common_sense } 1163BEGIN { AnyEvent::common_sense }
1169 1164
1170use Carp (); 1165use Carp ();
1171 1166
1172our $VERSION = '5.28'; 1167our $VERSION = '5.34';
1173our $MODEL; 1168our $MODEL;
1174 1169
1175our $AUTOLOAD; 1170our $AUTOLOAD;
1176our @ISA; 1171our @ISA;
1177 1172
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1202 $ENV{PERL_ANYEVENT_PROTOCOLS} || "ipv4,ipv6"; 1197 $ENV{PERL_ANYEVENT_PROTOCOLS} || "ipv4,ipv6";
1203} 1198}
1204 1199
1205my @models = ( 1200my @models = (
1206 [EV:: => AnyEvent::Impl::EV:: , 1], 1201 [EV:: => AnyEvent::Impl::EV:: , 1],
1207 [AnyEvent::Impl::Perl:: => AnyEvent::Impl::Perl:: , 1], 1202 [AnyEvent::Loop:: => AnyEvent::Impl::Perl:: , 1],
1208 # everything below here will not (normally) be autoprobed 1203 # everything below here will not (normally) be autoprobed
1209 # as the pureperl backend should work everywhere 1204 # as the pure perl backend should work everywhere
1210 # and is usually faster 1205 # and is usually faster
1211 [Event:: => AnyEvent::Impl::Event::, 1], 1206 [Event:: => AnyEvent::Impl::Event::, 1],
1212 [Glib:: => AnyEvent::Impl::Glib:: , 1], # becomes extremely slow with many watchers 1207 [Glib:: => AnyEvent::Impl::Glib:: , 1], # becomes extremely slow with many watchers
1213 [Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy 1208 [Event::Lib:: => AnyEvent::Impl::EventLib::], # too buggy
1214 [Irssi:: => AnyEvent::Impl::Irssi::], # Irssi has a bogus "Event" package 1209 [Irssi:: => AnyEvent::Impl::Irssi::], # Irssi has a bogus "Event" package
1215 [Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles 1210 [Tk:: => AnyEvent::Impl::Tk::], # crashes with many handles
1216 [Qt:: => AnyEvent::Impl::Qt::], # requires special main program 1211 [Qt:: => AnyEvent::Impl::Qt::], # requires special main program
1217 [POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza 1212 [POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza
1218 [Wx:: => AnyEvent::Impl::POE::], 1213 [Wx:: => AnyEvent::Impl::POE::],
1219 [Prima:: => AnyEvent::Impl::POE::], 1214 [Prima:: => AnyEvent::Impl::POE::],
1220 # IO::Async is just too broken - we would need workarounds for its
1221 # byzantine signal and broken child handling, among others.
1222 # IO::Async is rather hard to detect, as it doesn't have any
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 1215 [IO::Async::Loop:: => AnyEvent::Impl::IOAsync::],
1226 [IO::Async::Notifier:: => AnyEvent::Impl::IOAsync::], # requires special main program 1216 [Cocoa::EventLoop:: => AnyEvent::Impl::Cocoa::],
1227 [AnyEvent::Impl::IOAsync:: => AnyEvent::Impl::IOAsync::], # requires special main program 1217 [FLTK:: => AnyEvent::Impl::FLTK::],
1228); 1218);
1229 1219
1230our %method = map +($_ => 1), 1220our %method = map +($_ => 1),
1231 qw(io timer time now now_update signal child idle condvar one_event DESTROY); 1221 qw(io timer time now now_update signal child idle condvar DESTROY);
1232 1222
1233our @post_detect; 1223our @post_detect;
1234 1224
1235sub post_detect(&) { 1225sub post_detect(&) {
1236 my ($cb) = @_; 1226 my ($cb) = @_;
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1291 last; 1281 last;
1292 } 1282 }
1293 } 1283 }
1294 1284
1295 $MODEL 1285 $MODEL
1296 or die "No event module selected for AnyEvent and autodetect failed. Install any one of these modules: EV, Event or Glib.\n"; 1286 or die "AnyEvent: backend autodetection failed - did you properly install AnyEvent?\n";
1297 } 1287 }
1298 } 1288 }
1299 1289
1300 @models = (); # free probe data 1290 @models = (); # free probe data
1301 1291
1302 push @{"$MODEL\::ISA"}, "AnyEvent::Base"; 1292 push @{"$MODEL\::ISA"}, "AnyEvent::Base";
1303 unshift @ISA, $MODEL; 1293 unshift @ISA, $MODEL;
1304 1294
1305 # now nuke some methods that are overriden by the backend. 1295 # now nuke some methods that are overridden by the backend.
1306 # SUPER is not allowed. 1296 # SUPER is not allowed.
1307 for (qw(time signal child idle)) { 1297 for (qw(time signal child idle)) {
1308 undef &{"AnyEvent::Base::$_"} 1298 undef &{"AnyEvent::Base::$_"}
1309 if defined &{"$MODEL\::$_"}; 1299 if defined &{"$MODEL\::$_"};
1310 } 1300 }
1311 1301
1312 require AnyEvent::Strict if $ENV{PERL_ANYEVENT_STRICT}; 1302 if ($ENV{PERL_ANYEVENT_STRICT}) {
1303 eval { require AnyEvent::Strict };
1304 warn "AnyEvent: cannot load AnyEvent::Strict: $@"
1305 if $@ && $VERBOSE;
1306 }
1313 1307
1314 (shift @post_detect)->() while @post_detect; 1308 (shift @post_detect)->() while @post_detect;
1315 1309
1316 *post_detect = sub(&) { 1310 *post_detect = sub(&) {
1317 shift->(); 1311 shift->();
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1429 1423
1430*now = \&time; 1424*now = \&time;
1431 1425
1432sub now_update { } 1426sub now_update { }
1433 1427
1428sub _poll {
1429 Carp::croak "$AnyEvent::MODEL does not support blocking waits. Caught";
1430}
1431
1434# default implementation for ->condvar 1432# default implementation for ->condvar
1433# in fact,t he default should not be overwritten
1435 1434
1436sub condvar { 1435sub condvar {
1437 eval q{ # poor man's autoloading {} 1436 eval q{ # poor man's autoloading {}
1438 *condvar = sub { 1437 *condvar = sub {
1439 bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, "AnyEvent::CondVar" 1438 bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, "AnyEvent::CondVar"
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1624# default implementation for ->child 1623# default implementation for ->child
1625 1624
1626our %PID_CB; 1625our %PID_CB;
1627our $CHLD_W; 1626our $CHLD_W;
1628our $CHLD_DELAY_W; 1627our $CHLD_DELAY_W;
1629our $WNOHANG;
1630 1628
1631# used by many Impl's 1629# used by many Impl's
1632sub _emit_childstatus($$) { 1630sub _emit_childstatus($$) {
1633 my (undef, $rpid, $rstatus) = @_; 1631 my (undef, $rpid, $rstatus) = @_;
1634 1632
… …
1641 eval q{ # poor man's autoloading {} 1639 eval q{ # poor man's autoloading {}
1642 *_sigchld = sub { 1640 *_sigchld = sub {
1643 my $pid; 1641 my $pid;
1644 1642
1645 AnyEvent->_emit_childstatus ($pid, $?) 1643 AnyEvent->_emit_childstatus ($pid, $?)
1646 while ($pid = waitpid -1, $WNOHANG) > 0; 1644 while ($pid = waitpid -1, WNOHANG) > 0;
1647 }; 1645 };
1648 1646
1649 *child = sub { 1647 *child = sub {
1650 my (undef, %arg) = @_; 1648 my (undef, %arg) = @_;
1651 1649
1652 defined (my $pid = $arg{pid} + 0) 1650 my $pid = $arg{pid};
1653 or Carp::croak "required option 'pid' is missing"; 1651 my $cb = $arg{cb};
1654 1652
1655 $PID_CB{$pid}{$arg{cb}} = $arg{cb}; 1653 $PID_CB{$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 $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } || 1;
1661 1654
1662 unless ($CHLD_W) { 1655 unless ($CHLD_W) {
1663 $CHLD_W = AE::signal CHLD => \&_sigchld; 1656 $CHLD_W = AE::signal CHLD => \&_sigchld;
1664 # child could be a zombie already, so make at least one round 1657 # child could be a zombie already, so make at least one round
1665 &_sigchld; 1658 &_sigchld;
1666 } 1659 }
1667 1660
1668 bless [$pid, $arg{cb}], "AnyEvent::Base::child" 1661 bless [$pid, $cb+0], "AnyEvent::Base::child"
1669 }; 1662 };
1670 1663
1671 *AnyEvent::Base::child::DESTROY = sub { 1664 *AnyEvent::Base::child::DESTROY = sub {
1672 my ($pid, $cb) = @{$_[0]}; 1665 my ($pid, $icb) = @{$_[0]};
1673 1666
1674 delete $PID_CB{$pid}{$cb}; 1667 delete $PID_CB{$pid}{$icb};
1675 delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} }; 1668 delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} };
1676 1669
1677 undef $CHLD_W unless keys %PID_CB; 1670 undef $CHLD_W unless keys %PID_CB;
1678 }; 1671 };
1679 }; 1672 };
… …
1751 1744
1752sub _send { 1745sub _send {
1753 # nop 1746 # nop
1754} 1747}
1755 1748
1749sub _wait {
1750 AnyEvent->_poll until $_[0]{_ae_sent};
1751}
1752
1756sub send { 1753sub send {
1757 my $cv = shift; 1754 my $cv = shift;
1758 $cv->{_ae_sent} = [@_]; 1755 $cv->{_ae_sent} = [@_];
1759 (delete $cv->{_ae_cb})->($cv) if $cv->{_ae_cb}; 1756 (delete $cv->{_ae_cb})->($cv) if $cv->{_ae_cb};
1760 $cv->_send; 1757 $cv->_send;
… …
1767 1764
1768sub ready { 1765sub ready {
1769 $_[0]{_ae_sent} 1766 $_[0]{_ae_sent}
1770} 1767}
1771 1768
1772sub _wait {
1773 $WAITING
1774 and !$_[0]{_ae_sent}
1775 and Carp::croak "AnyEvent::CondVar: recursive blocking wait detected";
1776
1777 local $WAITING = 1;
1778 AnyEvent->one_event while !$_[0]{_ae_sent};
1779}
1780
1781sub recv { 1769sub recv {
1770 unless ($_[0]{_ae_sent}) {
1771 $WAITING
1772 and Carp::croak "AnyEvent::CondVar: recursive blocking wait attempted";
1773
1774 local $WAITING = 1;
1782 $_[0]->_wait; 1775 $_[0]->_wait;
1776 }
1783 1777
1784 Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak}; 1778 $_[0]{_ae_croak}
1785 wantarray ? @{ $_[0]{_ae_sent} } : $_[0]{_ae_sent}[0] 1779 and Carp::croak $_[0]{_ae_croak};
1780
1781 wantarray
1782 ? @{ $_[0]{_ae_sent} }
1783 : $_[0]{_ae_sent}[0]
1786} 1784}
1787 1785
1788sub cb { 1786sub cb {
1789 my $cv = shift; 1787 my $cv = shift;
1790 1788
… …
1806 &{ $_[0]{_ae_end_cb} || sub { $_[0]->send } }; 1804 &{ $_[0]{_ae_end_cb} || sub { $_[0]->send } };
1807} 1805}
1808 1806
1809# undocumented/compatibility with pre-3.4 1807# undocumented/compatibility with pre-3.4
1810*broadcast = \&send; 1808*broadcast = \&send;
1811*wait = \&_wait; 1809*wait = \&recv;
1812 1810
1813=head1 ERROR AND EXCEPTION HANDLING 1811=head1 ERROR AND EXCEPTION HANDLING
1814 1812
1815In general, AnyEvent does not do any error handling - it relies on the 1813In general, AnyEvent does not do any error handling - it relies on the
1816caller to do that if required. The L<AnyEvent::Strict> module (see also 1814caller to do that if required. The L<AnyEvent::Strict> module (see also
… …
1879used as event model. If it fails to load AnyEvent will proceed with 1877used as event model. If it fails to load AnyEvent will proceed with
1880auto detection and -probing. 1878auto detection and -probing.
1881 1879
1882This functionality might change in future versions. 1880This functionality might change in future versions.
1883 1881
1884For example, to force the pure perl model (L<AnyEvent::Impl::Perl>) you 1882For example, to force the pure perl model (L<AnyEvent::Loop::Perl>) you
1885could start your program like this: 1883could start your program like this:
1886 1884
1887 PERL_ANYEVENT_MODEL=Perl perl ... 1885 PERL_ANYEVENT_MODEL=Perl perl ...
1888 1886
1889=item C<PERL_ANYEVENT_PROTOCOLS> 1887=item C<PERL_ANYEVENT_PROTOCOLS>
… …
2588 2586
2589=item L<Time::HiRes> 2587=item L<Time::HiRes>
2590 2588
2591This module is part of perl since release 5.008. It will be used when the 2589This module is part of perl since release 5.008. It will be used when the
2592chosen event library does not come with a timing source of its own. The 2590chosen event library does not come with a timing source of its own. The
2593pure-perl event loop (L<AnyEvent::Impl::Perl>) will additionally use it to 2591pure-perl event loop (L<AnyEvent::Loop>) will additionally load it to
2594try to use a monotonic clock for timing stability. 2592try to use a monotonic clock for timing stability.
2595 2593
2596=back 2594=back
2597 2595
2598 2596
… …
2666 2664
2667FAQ: L<AnyEvent::FAQ>. 2665FAQ: L<AnyEvent::FAQ>.
2668 2666
2669Utility functions: L<AnyEvent::Util>. 2667Utility functions: L<AnyEvent::Util>.
2670 2668
2671Event modules: L<EV>, L<EV::Glib>, L<Glib::EV>, L<Event>, L<Glib::Event>, 2669Event modules: L<AnyEvent::Loop>, L<EV>, L<EV::Glib>, L<Glib::EV>,
2672L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. 2670L<Event>, L<Glib::Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>.
2673 2671
2674Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>, 2672Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>,
2675L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>, 2673L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>,
2676L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>, 2674L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>,
2677L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>. 2675L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>.

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