… | |
… | |
85 | 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 |
86 | 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. |
87 | |
87 | |
88 | AnyEvent is different: AnyEvent + POE works fine. AnyEvent + Glib works |
88 | AnyEvent is different: AnyEvent + POE works fine. AnyEvent + Glib works |
89 | 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 |
90 | 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 |
91 | 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 |
92 | 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 |
93 | 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 |
94 | 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, |
95 | to AnyEvent, too, so it is future-proof). |
95 | so it is future-proof). |
96 | |
96 | |
97 | 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 |
98 | 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 |
99 | 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 |
100 | 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 |
… | |
… | |
121 | 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> |
122 | module. |
122 | module. |
123 | |
123 | |
124 | 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 |
125 | 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 |
126 | following modules is already loaded: L<EV>, L<AnyEvent::Impl::Perl>, |
126 | following modules is already loaded: L<EV>, L<AnyEvent::Loop>, |
127 | L<Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. The first one |
127 | L<Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. The first one |
128 | found is used. If none are detected, the module tries to load the first |
128 | found is used. If none are detected, the module tries to load the first |
129 | four modules in the order given; but note that if L<EV> is not |
129 | four modules in the order given; but note that if L<EV> is not |
130 | available, the pure-perl L<AnyEvent::Impl::Perl> should always work, so |
130 | available, the pure-perl L<AnyEvent::Loop> should always work, so |
131 | the other two are not normally tried. |
131 | the other two are not normally tried. |
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: |
… | |
… | |
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. |
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 | |
… | |
… | |
1052 | modules might create watchers when they are loaded, and AnyEvent will |
1047 | 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 |
1048 | 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. |
1049 | might choose the wrong one unless you load the correct one yourself. |
1055 | |
1050 | |
1056 | You can chose to use a pure-perl implementation by loading the |
1051 | You can chose to use a pure-perl implementation by loading the |
1057 | C<AnyEvent::Impl::Perl> module, which gives you similar behaviour |
1052 | C<AnyEvent::Loop> module, which gives you similar behaviour |
1058 | everywhere, but letting AnyEvent chose the model is generally better. |
1053 | everywhere, but letting AnyEvent chose the model is generally better. |
1059 | |
1054 | |
1060 | =head2 MAINLOOP EMULATION |
1055 | =head2 MAINLOOP EMULATION |
1061 | |
1056 | |
1062 | Sometimes (often for short test scripts, or even standalone programs who |
1057 | Sometimes (often for short test scripts, or even standalone programs who |
… | |
… | |
1157 | |
1152 | |
1158 | package AnyEvent; |
1153 | package AnyEvent; |
1159 | |
1154 | |
1160 | # basically a tuned-down version of common::sense |
1155 | # basically a tuned-down version of common::sense |
1161 | sub common_sense { |
1156 | sub 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 | |
1168 | BEGIN { AnyEvent::common_sense } |
1163 | BEGIN { AnyEvent::common_sense } |
1169 | |
1164 | |
1170 | use Carp (); |
1165 | use Carp (); |
1171 | |
1166 | |
1172 | our $VERSION = '5.29'; |
1167 | our $VERSION = '5.34'; |
1173 | our $MODEL; |
1168 | our $MODEL; |
1174 | |
1169 | |
1175 | our $AUTOLOAD; |
1170 | our $AUTOLOAD; |
1176 | our @ISA; |
1171 | our @ISA; |
1177 | |
1172 | |
… | |
… | |
1202 | $ENV{PERL_ANYEVENT_PROTOCOLS} || "ipv4,ipv6"; |
1197 | $ENV{PERL_ANYEVENT_PROTOCOLS} || "ipv4,ipv6"; |
1203 | } |
1198 | } |
1204 | |
1199 | |
1205 | my @models = ( |
1200 | my @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 | |
1230 | our %method = map +($_ => 1), |
1220 | our %method = map +($_ => 1), |
1231 | qw(io timer time now now_update signal child idle condvar one_event DESTROY); |
1221 | qw(io timer time now now_update signal child idle condvar DESTROY); |
1232 | |
1222 | |
1233 | our @post_detect; |
1223 | our @post_detect; |
1234 | |
1224 | |
1235 | sub post_detect(&) { |
1225 | sub post_detect(&) { |
1236 | my ($cb) = @_; |
1226 | my ($cb) = @_; |
… | |
… | |
1309 | if defined &{"$MODEL\::$_"}; |
1299 | if defined &{"$MODEL\::$_"}; |
1310 | } |
1300 | } |
1311 | |
1301 | |
1312 | if ($ENV{PERL_ANYEVENT_STRICT}) { |
1302 | if ($ENV{PERL_ANYEVENT_STRICT}) { |
1313 | eval { require AnyEvent::Strict }; |
1303 | eval { require AnyEvent::Strict }; |
1314 | warn "AnyEvent: cannot load AnyEvent::Strict ($@)\n" |
1304 | warn "AnyEvent: cannot load AnyEvent::Strict: $@" |
1315 | if $@ && $VERBOSE; |
1305 | if $@ && $VERBOSE; |
1316 | } |
1306 | } |
1317 | |
1307 | |
1318 | (shift @post_detect)->() while @post_detect; |
1308 | (shift @post_detect)->() while @post_detect; |
1319 | |
1309 | |
… | |
… | |
1433 | |
1423 | |
1434 | *now = \&time; |
1424 | *now = \&time; |
1435 | |
1425 | |
1436 | sub now_update { } |
1426 | sub now_update { } |
1437 | |
1427 | |
|
|
1428 | sub _poll { |
|
|
1429 | Carp::croak "$AnyEvent::MODEL does not support blocking waits. Caught"; |
|
|
1430 | } |
|
|
1431 | |
1438 | # default implementation for ->condvar |
1432 | # default implementation for ->condvar |
|
|
1433 | # in fact,t he default should not be overwritten |
1439 | |
1434 | |
1440 | sub condvar { |
1435 | sub condvar { |
1441 | eval q{ # poor man's autoloading {} |
1436 | eval q{ # poor man's autoloading {} |
1442 | *condvar = sub { |
1437 | *condvar = sub { |
1443 | bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, "AnyEvent::CondVar" |
1438 | bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, "AnyEvent::CondVar" |
… | |
… | |
1628 | # default implementation for ->child |
1623 | # default implementation for ->child |
1629 | |
1624 | |
1630 | our %PID_CB; |
1625 | our %PID_CB; |
1631 | our $CHLD_W; |
1626 | our $CHLD_W; |
1632 | our $CHLD_DELAY_W; |
1627 | our $CHLD_DELAY_W; |
1633 | our $WNOHANG; |
|
|
1634 | |
1628 | |
1635 | # used by many Impl's |
1629 | # used by many Impl's |
1636 | sub _emit_childstatus($$) { |
1630 | sub _emit_childstatus($$) { |
1637 | my (undef, $rpid, $rstatus) = @_; |
1631 | my (undef, $rpid, $rstatus) = @_; |
1638 | |
1632 | |
… | |
… | |
1645 | eval q{ # poor man's autoloading {} |
1639 | eval q{ # poor man's autoloading {} |
1646 | *_sigchld = sub { |
1640 | *_sigchld = sub { |
1647 | my $pid; |
1641 | my $pid; |
1648 | |
1642 | |
1649 | AnyEvent->_emit_childstatus ($pid, $?) |
1643 | AnyEvent->_emit_childstatus ($pid, $?) |
1650 | while ($pid = waitpid -1, $WNOHANG) > 0; |
1644 | while ($pid = waitpid -1, WNOHANG) > 0; |
1651 | }; |
1645 | }; |
1652 | |
1646 | |
1653 | *child = sub { |
1647 | *child = sub { |
1654 | my (undef, %arg) = @_; |
1648 | my (undef, %arg) = @_; |
1655 | |
1649 | |
1656 | defined (my $pid = $arg{pid} + 0) |
1650 | my $pid = $arg{pid}; |
1657 | or Carp::croak "required option 'pid' is missing"; |
1651 | my $cb = $arg{cb}; |
1658 | |
1652 | |
1659 | $PID_CB{$pid}{$arg{cb}} = $arg{cb}; |
1653 | $PID_CB{$pid}{$cb+0} = $cb; |
1660 | |
|
|
1661 | # WNOHANG is almost cetrainly 1 everywhere |
|
|
1662 | $WNOHANG ||= $^O =~ /^(?:openbsd|netbsd|linux|freebsd|cygwin|MSWin32)$/ |
|
|
1663 | ? 1 |
|
|
1664 | : eval { local $SIG{__DIE__}; require POSIX; &POSIX::WNOHANG } || 1; |
|
|
1665 | |
1654 | |
1666 | unless ($CHLD_W) { |
1655 | unless ($CHLD_W) { |
1667 | $CHLD_W = AE::signal CHLD => \&_sigchld; |
1656 | $CHLD_W = AE::signal CHLD => \&_sigchld; |
1668 | # child could be a zombie already, so make at least one round |
1657 | # child could be a zombie already, so make at least one round |
1669 | &_sigchld; |
1658 | &_sigchld; |
1670 | } |
1659 | } |
1671 | |
1660 | |
1672 | bless [$pid, $arg{cb}], "AnyEvent::Base::child" |
1661 | bless [$pid, $cb+0], "AnyEvent::Base::child" |
1673 | }; |
1662 | }; |
1674 | |
1663 | |
1675 | *AnyEvent::Base::child::DESTROY = sub { |
1664 | *AnyEvent::Base::child::DESTROY = sub { |
1676 | my ($pid, $cb) = @{$_[0]}; |
1665 | my ($pid, $icb) = @{$_[0]}; |
1677 | |
1666 | |
1678 | delete $PID_CB{$pid}{$cb}; |
1667 | delete $PID_CB{$pid}{$icb}; |
1679 | delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} }; |
1668 | delete $PID_CB{$pid} unless keys %{ $PID_CB{$pid} }; |
1680 | |
1669 | |
1681 | undef $CHLD_W unless keys %PID_CB; |
1670 | undef $CHLD_W unless keys %PID_CB; |
1682 | }; |
1671 | }; |
1683 | }; |
1672 | }; |
… | |
… | |
1755 | |
1744 | |
1756 | sub _send { |
1745 | sub _send { |
1757 | # nop |
1746 | # nop |
1758 | } |
1747 | } |
1759 | |
1748 | |
|
|
1749 | sub _wait { |
|
|
1750 | AnyEvent->_poll until $_[0]{_ae_sent}; |
|
|
1751 | } |
|
|
1752 | |
1760 | sub send { |
1753 | sub send { |
1761 | my $cv = shift; |
1754 | my $cv = shift; |
1762 | $cv->{_ae_sent} = [@_]; |
1755 | $cv->{_ae_sent} = [@_]; |
1763 | (delete $cv->{_ae_cb})->($cv) if $cv->{_ae_cb}; |
1756 | (delete $cv->{_ae_cb})->($cv) if $cv->{_ae_cb}; |
1764 | $cv->_send; |
1757 | $cv->_send; |
… | |
… | |
1771 | |
1764 | |
1772 | sub ready { |
1765 | sub ready { |
1773 | $_[0]{_ae_sent} |
1766 | $_[0]{_ae_sent} |
1774 | } |
1767 | } |
1775 | |
1768 | |
1776 | sub _wait { |
|
|
1777 | $WAITING |
|
|
1778 | and !$_[0]{_ae_sent} |
|
|
1779 | and Carp::croak "AnyEvent::CondVar: recursive blocking wait detected"; |
|
|
1780 | |
|
|
1781 | local $WAITING = 1; |
|
|
1782 | AnyEvent->one_event while !$_[0]{_ae_sent}; |
|
|
1783 | } |
|
|
1784 | |
|
|
1785 | sub recv { |
1769 | sub recv { |
|
|
1770 | unless ($_[0]{_ae_sent}) { |
|
|
1771 | $WAITING |
|
|
1772 | and Carp::croak "AnyEvent::CondVar: recursive blocking wait attempted"; |
|
|
1773 | |
|
|
1774 | local $WAITING = 1; |
1786 | $_[0]->_wait; |
1775 | $_[0]->_wait; |
|
|
1776 | } |
1787 | |
1777 | |
1788 | Carp::croak $_[0]{_ae_croak} if $_[0]{_ae_croak}; |
1778 | $_[0]{_ae_croak} |
1789 | 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] |
1790 | } |
1784 | } |
1791 | |
1785 | |
1792 | sub cb { |
1786 | sub cb { |
1793 | my $cv = shift; |
1787 | my $cv = shift; |
1794 | |
1788 | |
… | |
… | |
1810 | &{ $_[0]{_ae_end_cb} || sub { $_[0]->send } }; |
1804 | &{ $_[0]{_ae_end_cb} || sub { $_[0]->send } }; |
1811 | } |
1805 | } |
1812 | |
1806 | |
1813 | # undocumented/compatibility with pre-3.4 |
1807 | # undocumented/compatibility with pre-3.4 |
1814 | *broadcast = \&send; |
1808 | *broadcast = \&send; |
1815 | *wait = \&_wait; |
1809 | *wait = \&recv; |
1816 | |
1810 | |
1817 | =head1 ERROR AND EXCEPTION HANDLING |
1811 | =head1 ERROR AND EXCEPTION HANDLING |
1818 | |
1812 | |
1819 | In general, AnyEvent does not do any error handling - it relies on the |
1813 | In general, AnyEvent does not do any error handling - it relies on the |
1820 | caller to do that if required. The L<AnyEvent::Strict> module (see also |
1814 | caller to do that if required. The L<AnyEvent::Strict> module (see also |
… | |
… | |
1883 | used as event model. If it fails to load AnyEvent will proceed with |
1877 | used as event model. If it fails to load AnyEvent will proceed with |
1884 | auto detection and -probing. |
1878 | auto detection and -probing. |
1885 | |
1879 | |
1886 | This functionality might change in future versions. |
1880 | This functionality might change in future versions. |
1887 | |
1881 | |
1888 | For example, to force the pure perl model (L<AnyEvent::Impl::Perl>) you |
1882 | For example, to force the pure perl model (L<AnyEvent::Loop::Perl>) you |
1889 | could start your program like this: |
1883 | could start your program like this: |
1890 | |
1884 | |
1891 | PERL_ANYEVENT_MODEL=Perl perl ... |
1885 | PERL_ANYEVENT_MODEL=Perl perl ... |
1892 | |
1886 | |
1893 | =item C<PERL_ANYEVENT_PROTOCOLS> |
1887 | =item C<PERL_ANYEVENT_PROTOCOLS> |
… | |
… | |
2592 | |
2586 | |
2593 | =item L<Time::HiRes> |
2587 | =item L<Time::HiRes> |
2594 | |
2588 | |
2595 | This module is part of perl since release 5.008. It will be used when the |
2589 | This module is part of perl since release 5.008. It will be used when the |
2596 | chosen event library does not come with a timing source of its own. The |
2590 | chosen event library does not come with a timing source of its own. The |
2597 | pure-perl event loop (L<AnyEvent::Impl::Perl>) will additionally use it to |
2591 | pure-perl event loop (L<AnyEvent::Loop>) will additionally load it to |
2598 | try to use a monotonic clock for timing stability. |
2592 | try to use a monotonic clock for timing stability. |
2599 | |
2593 | |
2600 | =back |
2594 | =back |
2601 | |
2595 | |
2602 | |
2596 | |
… | |
… | |
2670 | |
2664 | |
2671 | FAQ: L<AnyEvent::FAQ>. |
2665 | FAQ: L<AnyEvent::FAQ>. |
2672 | |
2666 | |
2673 | Utility functions: L<AnyEvent::Util>. |
2667 | Utility functions: L<AnyEvent::Util>. |
2674 | |
2668 | |
2675 | Event modules: L<EV>, L<EV::Glib>, L<Glib::EV>, L<Event>, L<Glib::Event>, |
2669 | Event modules: L<AnyEvent::Loop>, L<EV>, L<EV::Glib>, L<Glib::EV>, |
2676 | L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. |
2670 | L<Event>, L<Glib::Event>, L<Glib>, L<Tk>, L<Event::Lib>, L<Qt>, L<POE>. |
2677 | |
2671 | |
2678 | Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>, |
2672 | Implementations: L<AnyEvent::Impl::EV>, L<AnyEvent::Impl::Event>, |
2679 | L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>, |
2673 | L<AnyEvent::Impl::Glib>, L<AnyEvent::Impl::Tk>, L<AnyEvent::Impl::Perl>, |
2680 | L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>, |
2674 | L<AnyEvent::Impl::EventLib>, L<AnyEvent::Impl::Qt>, |
2681 | L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>. |
2675 | L<AnyEvent::Impl::POE>, L<AnyEvent::Impl::IOAsync>, L<Anyevent::Impl::Irssi>. |