ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent/lib/AnyEvent.pm
(Generate patch)

Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.110 by root, Sat May 10 00:57:31 2008 UTC vs.
Revision 1.112 by root, Sat May 10 01:04:42 2008 UTC

… …
549Returns C<$AnyEvent::MODEL>, forcing autodetection of the event model 549Returns C<$AnyEvent::MODEL>, forcing autodetection of the event model
550if necessary. You should only call this function right before you would 550if necessary. You should only call this function right before you would
551have created an AnyEvent watcher anyway, that is, as late as possible at 551have created an AnyEvent watcher anyway, that is, as late as possible at
552runtime. 552runtime.
553 553
554=item $guard = AnyEvent::on_detect { BLOCK } 554=item $guard = AnyEvent::post_detect { BLOCK }
555 555
556Arranges for the code block to be executed as soon as the event model is 556Arranges for the code block to be executed as soon as the event model is
557autodetected (or immediately if this has already happened). 557autodetected (or immediately if this has already happened).
558 558
559If called in scalar or list context, then it creates and returns an object 559If called in scalar or list context, then it creates and returns an object
560that automatically removes the callback again when it is destroyed. 560that automatically removes the callback again when it is destroyed. See
561L<Coro::BDB> for a case where this is useful.
561 562
562=item @AnyEvent::on_detect 563=item @AnyEvent::post_detect
563 564
564If there are any code references in this array (you can C<push> to it 565If there are any code references in this array (you can C<push> to it
565before or after loading AnyEvent), then they will called directly after 566before or after loading AnyEvent), then they will called directly after
566the event loop has been chosen. 567the event loop has been chosen.
567 568
568You should check C<$AnyEvent::MODEL> before adding to this array, though: 569You should check C<$AnyEvent::MODEL> before adding to this array, though:
569if it contains a true value then the event loop has already been detected, 570if it contains a true value then the event loop has already been detected,
570and the array will be ignored. 571and the array will be ignored.
571 572
572Best use C<AnyEvent::on_detect { BLOCK }> instead. 573Best use C<AnyEvent::post_detect { BLOCK }> instead.
573 574
574=back 575=back
575 576
576=head1 WHAT TO DO IN A MODULE 577=head1 WHAT TO DO IN A MODULE
577 578
… …
719 [POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza 720 [POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza
720); 721);
721 722
722our %method = map +($_ => 1), qw(io timer signal child condvar one_event DESTROY); 723our %method = map +($_ => 1), qw(io timer signal child condvar one_event DESTROY);
723 724
724our @on_detect; 725our @post_detect;
725 726
726sub on_detect(&) { 727sub post_detect(&) {
727 my ($cb) = @_; 728 my ($cb) = @_;
728 729
729 if ($MODEL) { 730 if ($MODEL) {
730 $cb->(); 731 $cb->();
731 732
732 1 733 1
733 } else { 734 } else {
734 push @on_detect, $cb; 735 push @post_detect, $cb;
735 736
736 defined wantarray 737 defined wantarray
737 ? bless \$cb, "AnyEvent::Util::Guard" 738 ? bless \$cb, "AnyEvent::Util::Guard"
738 : () 739 : ()
739 } 740 }
740} 741}
741 742
742sub AnyEvent::Util::Guard::DESTROY { 743sub AnyEvent::Util::Guard::DESTROY {
743 @on_detect = grep $_ != ${$_[0]}, @on_detect; 744 @post_detect = grep $_ != ${$_[0]}, @post_detect;
744} 745}
745 746
746sub detect() { 747sub detect() {
747 unless ($MODEL) { 748 unless ($MODEL) {
748 no strict 'refs'; 749 no strict 'refs';
… …
790 } 791 }
791 792
792 unshift @ISA, $MODEL; 793 unshift @ISA, $MODEL;
793 push @{"$MODEL\::ISA"}, "AnyEvent::Base"; 794 push @{"$MODEL\::ISA"}, "AnyEvent::Base";
794 795
795 (shift @on_detect)->() while @on_detect; 796 (shift @post_detect)->() while @post_detect;
796 } 797 }
797 798
798 $MODEL 799 $MODEL
799} 800}
800 801

Diff Legend

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