… | |
… | |
35 | warn "sigquit received\n"; |
35 | warn "sigquit received\n"; |
36 | }; |
36 | }; |
37 | |
37 | |
38 | # CHILD/PID STATUS CHANGES |
38 | # CHILD/PID STATUS CHANGES |
39 | |
39 | |
40 | my $w = EV::child 666, sub { |
40 | my $w = EV::child 666, 0, sub { |
41 | my ($w, $revents) = @_; |
41 | my ($w, $revents) = @_; |
42 | my $status = $w->rstatus; |
42 | my $status = $w->rstatus; |
43 | }; |
43 | }; |
44 | |
44 | |
45 | # STAT CHANGES |
45 | # STAT CHANGES |
… | |
… | |
68 | package EV; |
68 | package EV; |
69 | |
69 | |
70 | use strict; |
70 | use strict; |
71 | |
71 | |
72 | BEGIN { |
72 | BEGIN { |
73 | our $VERSION = '2.0'; |
73 | our $VERSION = '3.1'; |
74 | use XSLoader; |
74 | use XSLoader; |
75 | XSLoader::load "EV", $VERSION; |
75 | XSLoader::load "EV", $VERSION; |
76 | } |
76 | } |
77 | |
77 | |
78 | @EV::IO::ISA = |
78 | @EV::IO::ISA = |
… | |
… | |
84 | @EV::Idle::ISA = |
84 | @EV::Idle::ISA = |
85 | @EV::Prepare::ISA = |
85 | @EV::Prepare::ISA = |
86 | @EV::Check::ISA = |
86 | @EV::Check::ISA = |
87 | @EV::Embed::ISA = |
87 | @EV::Embed::ISA = |
88 | @EV::Fork::ISA = |
88 | @EV::Fork::ISA = |
|
|
89 | @EV::Async::ISA = |
89 | "EV::Watcher"; |
90 | "EV::Watcher"; |
90 | |
91 | |
91 | @EV::Loop::Default::ISA = "EV::Loop"; |
92 | @EV::Loop::Default::ISA = "EV::Loop"; |
92 | |
93 | |
93 | =head1 EVENT LOOPS |
94 | =head1 EVENT LOOPS |
… | |
… | |
533 | This time simply fires at the wallclock time C<$at> and doesn't repeat. It |
534 | This time simply fires at the wallclock time C<$at> and doesn't repeat. It |
534 | will not adjust when a time jump occurs, that is, if it is to be run |
535 | will not adjust when a time jump occurs, that is, if it is to be run |
535 | at January 1st 2011 then it will run when the system time reaches or |
536 | at January 1st 2011 then it will run when the system time reaches or |
536 | surpasses this time. |
537 | surpasses this time. |
537 | |
538 | |
538 | =item * non-repeating interval timer ($interval > 0, $reschedule_cb = 0) |
539 | =item * repeating interval timer ($interval > 0, $reschedule_cb = 0) |
539 | |
540 | |
540 | In this mode the watcher will always be scheduled to time out at the |
541 | In this mode the watcher will always be scheduled to time out at the |
541 | next C<$at + N * $interval> time (for some integer N) and then repeat, |
542 | next C<$at + N * $interval> time (for some integer N) and then repeat, |
542 | regardless of any time jumps. |
543 | regardless of any time jumps. |
543 | |
544 | |
… | |
… | |
644 | |
645 | |
645 | =head3 CHILD WATCHERS - watch out for process status changes |
646 | =head3 CHILD WATCHERS - watch out for process status changes |
646 | |
647 | |
647 | =over 4 |
648 | =over 4 |
648 | |
649 | |
649 | =item $w = EV::child $pid, $callback |
650 | =item $w = EV::child $pid, $trace, $callback |
650 | |
651 | |
651 | =item $w = EV::child_ns $pid, $callback |
652 | =item $w = EV::child_ns $pid, $trace, $callback |
652 | |
653 | |
653 | =item $w = $loop->child ($pid, $callback) |
654 | =item $w = $loop->child ($pid, $trace, $callback) |
654 | |
655 | |
655 | =item $w = $loop->child_ns ($pid, $callback) |
656 | =item $w = $loop->child_ns ($pid, $trace, $callback) |
656 | |
657 | |
657 | Call the callback when a status change for pid C<$pid> (or any pid if |
658 | Call the callback when a status change for pid C<$pid> (or any pid |
658 | C<$pid> is 0) has been received. More precisely: when the process receives |
659 | if C<$pid> is 0) has been received (a status change happens when the |
|
|
660 | process terminates or is killed, or, when trace is true, additionally when |
|
|
661 | it is stopped or continued). More precisely: when the process receives |
659 | a C<SIGCHLD>, EV will fetch the outstanding exit/wait status for all |
662 | a C<SIGCHLD>, EV will fetch the outstanding exit/wait status for all |
660 | changed/zombie children and call the callback. |
663 | changed/zombie children and call the callback. |
661 | |
664 | |
662 | It is valid (and fully supported) to install a child watcher after a child |
665 | It is valid (and fully supported) to install a child watcher after a child |
663 | has exited but before the event loop has started its next iteration (for |
666 | has exited but before the event loop has started its next iteration (for |
… | |
… | |
670 | You can have as many pid watchers per pid as you want, they will all be |
673 | You can have as many pid watchers per pid as you want, they will all be |
671 | called. |
674 | called. |
672 | |
675 | |
673 | The C<child_ns> variant doesn't start (activate) the newly created watcher. |
676 | The C<child_ns> variant doesn't start (activate) the newly created watcher. |
674 | |
677 | |
675 | =item $w->set ($pid) |
678 | =item $w->set ($pid, $trace) |
676 | |
679 | |
677 | Reconfigures the watcher, see the constructor above for details. Can be called at |
680 | Reconfigures the watcher, see the constructor above for details. Can be called at |
678 | any time. |
681 | any time. |
679 | |
682 | |
680 | =item $current_pid = $w->pid |
683 | =item $current_pid = $w->pid |
681 | |
|
|
682 | =item $old_pid = $w->pid ($new_pid) |
|
|
683 | |
684 | |
684 | Returns the previously set process id and optionally set a new one. |
685 | Returns the previously set process id and optionally set a new one. |
685 | |
686 | |
686 | =item $exit_status = $w->rstatus |
687 | =item $exit_status = $w->rstatus |
687 | |
688 | |
… | |
… | |
968 | |
969 | |
969 | The C<embed_ns> variant doesn't start (activate) the newly created watcher. |
970 | The C<embed_ns> variant doesn't start (activate) the newly created watcher. |
970 | |
971 | |
971 | =back |
972 | =back |
972 | |
973 | |
|
|
974 | =head3 ASYNC WATCHERS - how to wake up another event loop |
|
|
975 | |
|
|
976 | Async watchers are provided by EV, but have little use in perl directly, as perl |
|
|
977 | neither supports threads nor direct access to signal handlers or other |
|
|
978 | contexts where they could be of value. |
|
|
979 | |
|
|
980 | It is, however, possible to use them from the XS level. |
|
|
981 | |
|
|
982 | Please see the libev documentation for further details. |
|
|
983 | |
973 | |
984 | |
974 | =head1 PERL SIGNALS |
985 | =head1 PERL SIGNALS |
975 | |
986 | |
976 | While Perl signal handling (C<%SIG>) is not affected by EV, the behaviour |
987 | While Perl signal handling (C<%SIG>) is not affected by EV, the behaviour |
977 | with EV is as the same as any other C library: Perl-signals will only be |
988 | with EV is as the same as any other C library: Perl-signals will only be |