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161 | |
161 | |
162 | =head2 SIGNAL WATCHERS |
162 | =head2 SIGNAL WATCHERS |
163 | |
163 | |
164 | You can listen for signals using a signal watcher, C<signal> is the signal |
164 | You can listen for signals using a signal watcher, C<signal> is the signal |
165 | I<name> without any C<SIG> prefix. Multiple signals events can be clumped |
165 | I<name> without any C<SIG> prefix. Multiple signals events can be clumped |
166 | together into one callback invocation, and callbakc invocation might or |
166 | together into one callback invocation, and callback invocation might or |
167 | might not be asynchronous. |
167 | might not be asynchronous. |
168 | |
168 | |
169 | These watchers might use C<%SIG>, so programs overwriting those signals |
169 | These watchers might use C<%SIG>, so programs overwriting those signals |
170 | directly will likely not work correctly. |
170 | directly will likely not work correctly. |
171 | |
171 | |
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245 | |
245 | |
246 | package AnyEvent; |
246 | package AnyEvent; |
247 | |
247 | |
248 | no warnings; |
248 | no warnings; |
249 | use strict; |
249 | use strict; |
|
|
250 | |
250 | use Carp; |
251 | use Carp; |
251 | |
252 | |
252 | our $VERSION = '2.5'; |
253 | our $VERSION = '2.52'; |
253 | our $MODEL; |
254 | our $MODEL; |
254 | |
255 | |
255 | our $AUTOLOAD; |
256 | our $AUTOLOAD; |
256 | our @ISA; |
257 | our @ISA; |
257 | |
258 | |
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288 | unless ($MODEL) { |
289 | unless ($MODEL) { |
289 | # try to load a model |
290 | # try to load a model |
290 | |
291 | |
291 | for (@REGISTRY, @models) { |
292 | for (@REGISTRY, @models) { |
292 | my ($package, $model) = @$_; |
293 | my ($package, $model) = @$_; |
|
|
294 | if (eval "require $package" |
|
|
295 | and ${"$package\::VERSION"} > 0 |
293 | if (eval "require $model") { |
296 | and eval "require $model") { |
294 | $MODEL = $model; |
297 | $MODEL = $model; |
295 | warn "AnyEvent: autoprobed and loaded model '$model', using it.\n" if $verbose > 1; |
298 | warn "AnyEvent: autoprobed and loaded model '$model', using it.\n" if $verbose > 1; |
296 | last; |
299 | last; |
297 | } |
300 | } |
298 | } |
301 | } |
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384 | or Carp::croak "required option 'pid' is missing"; |
387 | or Carp::croak "required option 'pid' is missing"; |
385 | |
388 | |
386 | $PID_CB{$pid}{$arg{cb}} = $arg{cb}; |
389 | $PID_CB{$pid}{$arg{cb}} = $arg{cb}; |
387 | |
390 | |
388 | unless ($WNOHANG) { |
391 | unless ($WNOHANG) { |
389 | $CHLD_W = AnyEvent->signal (signal => 'CHLD', cb => \&_child_wait); |
|
|
390 | $WNOHANG = eval { require POSIX; &POSIX::WNOHANG } || 1; |
392 | $WNOHANG = eval { require POSIX; &POSIX::WNOHANG } || 1; |
391 | } |
393 | } |
392 | |
394 | |
|
|
395 | unless ($CHLD_W) { |
|
|
396 | $CHLD_W = AnyEvent->signal (signal => 'CHLD', cb => \&_child_wait); |
393 | # child could be a zombie already |
397 | # child could be a zombie already |
394 | $PID_IDLE ||= AnyEvent->timer (after => 0, cb => \&_child_wait); |
398 | $PID_IDLE ||= AnyEvent->timer (after => 0, cb => \&_child_wait); |
|
|
399 | } |
395 | |
400 | |
396 | bless [$pid, $arg{cb}], "AnyEvent::Base::Child" |
401 | bless [$pid, $arg{cb}], "AnyEvent::Base::Child" |
397 | } |
402 | } |
398 | |
403 | |
399 | sub AnyEvent::Base::Child::DESTROY { |
404 | sub AnyEvent::Base::Child::DESTROY { |
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435 | I<rxvt-unicode> distribution. |
440 | I<rxvt-unicode> distribution. |
436 | |
441 | |
437 | I<rxvt-unicode> also cheats a bit by not providing blocking access to |
442 | I<rxvt-unicode> also cheats a bit by not providing blocking access to |
438 | condition variables: code blocking while waiting for a condition will |
443 | condition variables: code blocking while waiting for a condition will |
439 | C<die>. This still works with most modules/usages, and blocking calls must |
444 | C<die>. This still works with most modules/usages, and blocking calls must |
440 | not be in an interactive appliation, so it makes sense. |
445 | not be in an interactive application, so it makes sense. |
441 | |
446 | |
442 | =head1 ENVIRONMENT VARIABLES |
447 | =head1 ENVIRONMENT VARIABLES |
443 | |
448 | |
444 | The following environment variables are used by this module: |
449 | The following environment variables are used by this module: |
445 | |
450 | |