… | |
… | |
319 | |
319 | |
320 | In either case, if you care (and in most cases, you don't), then you |
320 | In either case, if you care (and in most cases, you don't), then you |
321 | can get whatever behaviour you want with any event loop, by taking the |
321 | can get whatever behaviour you want with any event loop, by taking the |
322 | difference between C<< AnyEvent->time >> and C<< AnyEvent->now >> into |
322 | difference between C<< AnyEvent->time >> and C<< AnyEvent->now >> into |
323 | account. |
323 | account. |
|
|
324 | |
|
|
325 | =item AnyEvent->now_update |
|
|
326 | |
|
|
327 | Some event loops (such as L<EV> or L<AnyEvent::Impl::Perl>) cache |
|
|
328 | the current time for each loop iteration (see the discussion of L<< |
|
|
329 | AnyEvent->now >>, above). |
|
|
330 | |
|
|
331 | When a callback runs for a long time (or when the process sleeps), then |
|
|
332 | this "current" time will differ substantially from the real time, which |
|
|
333 | might affect timers and time-outs. |
|
|
334 | |
|
|
335 | When this is the case, you can call this method, which will update the |
|
|
336 | event loop's idea of "current time". |
|
|
337 | |
|
|
338 | Note that updating the time I<might> cause some events to be handled. |
324 | |
339 | |
325 | =back |
340 | =back |
326 | |
341 | |
327 | =head2 SIGNAL WATCHERS |
342 | =head2 SIGNAL WATCHERS |
328 | |
343 | |
… | |
… | |
873 | no warnings; |
888 | no warnings; |
874 | use strict qw(vars subs); |
889 | use strict qw(vars subs); |
875 | |
890 | |
876 | use Carp; |
891 | use Carp; |
877 | |
892 | |
878 | our $VERSION = 4.35; |
893 | our $VERSION = 4.351; |
879 | our $MODEL; |
894 | our $MODEL; |
880 | |
895 | |
881 | our $AUTOLOAD; |
896 | our $AUTOLOAD; |
882 | our @ISA; |
897 | our @ISA; |
883 | |
898 | |
… | |
… | |
915 | [POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza |
930 | [POE::Kernel:: => AnyEvent::Impl::POE::], # lasciate ogni speranza |
916 | [Wx:: => AnyEvent::Impl::POE::], |
931 | [Wx:: => AnyEvent::Impl::POE::], |
917 | [Prima:: => AnyEvent::Impl::POE::], |
932 | [Prima:: => AnyEvent::Impl::POE::], |
918 | ); |
933 | ); |
919 | |
934 | |
920 | our %method = map +($_ => 1), qw(io timer time now signal child condvar one_event DESTROY); |
935 | our %method = map +($_ => 1), |
|
|
936 | qw(io timer time now now_update signal child condvar one_event DESTROY); |
921 | |
937 | |
922 | our @post_detect; |
938 | our @post_detect; |
923 | |
939 | |
924 | sub post_detect(&) { |
940 | sub post_detect(&) { |
925 | my ($cb) = @_; |
941 | my ($cb) = @_; |
… | |
… | |
982 | last; |
998 | last; |
983 | } |
999 | } |
984 | } |
1000 | } |
985 | |
1001 | |
986 | $MODEL |
1002 | $MODEL |
987 | or die "No event module selected for AnyEvent and autodetect failed. Install any one of these modules: EV, Event or Glib."; |
1003 | or die "No event module selected for AnyEvent and autodetect failed. Install any one of these modules: EV, Event or Glib.\n"; |
988 | } |
1004 | } |
989 | } |
1005 | } |
990 | |
1006 | |
991 | push @{"$MODEL\::ISA"}, "AnyEvent::Base"; |
1007 | push @{"$MODEL\::ISA"}, "AnyEvent::Base"; |
992 | |
1008 | |
… | |
… | |
1022 | my ($rw, $mode) = $poll eq "r" ? ($r, "<") |
1038 | my ($rw, $mode) = $poll eq "r" ? ($r, "<") |
1023 | : $poll eq "w" ? ($w, ">") |
1039 | : $poll eq "w" ? ($w, ">") |
1024 | : Carp::croak "AnyEvent->io requires poll set to either 'r' or 'w'"; |
1040 | : Carp::croak "AnyEvent->io requires poll set to either 'r' or 'w'"; |
1025 | |
1041 | |
1026 | open my $fh2, "$mode&" . fileno $fh |
1042 | open my $fh2, "$mode&" . fileno $fh |
1027 | or die "cannot dup() filehandle: $!"; |
1043 | or die "cannot dup() filehandle: $!,"; |
1028 | |
1044 | |
1029 | # we assume CLOEXEC is already set by perl in all important cases |
1045 | # we assume CLOEXEC is already set by perl in all important cases |
1030 | |
1046 | |
1031 | ($fh2, $rw) |
1047 | ($fh2, $rw) |
1032 | } |
1048 | } |
1033 | |
1049 | |
1034 | package AnyEvent::Base; |
1050 | package AnyEvent::Base; |
1035 | |
1051 | |
1036 | # default implementation for now and time |
1052 | # default implementations for many methods |
1037 | |
1053 | |
1038 | BEGIN { |
1054 | BEGIN { |
1039 | if (eval "use Time::HiRes (); time (); 1") { |
1055 | if (eval "use Time::HiRes (); time (); 1") { |
1040 | *_time = \&Time::HiRes::time; |
1056 | *_time = \&Time::HiRes::time; |
1041 | # if (eval "use POSIX (); (POSIX::times())... |
1057 | # if (eval "use POSIX (); (POSIX::times())... |
… | |
… | |
1044 | } |
1060 | } |
1045 | } |
1061 | } |
1046 | |
1062 | |
1047 | sub time { _time } |
1063 | sub time { _time } |
1048 | sub now { _time } |
1064 | sub now { _time } |
|
|
1065 | sub now_update { } |
1049 | |
1066 | |
1050 | # default implementation for ->condvar |
1067 | # default implementation for ->condvar |
1051 | |
1068 | |
1052 | sub condvar { |
1069 | sub condvar { |
1053 | bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, AnyEvent::CondVar:: |
1070 | bless { @_ == 3 ? (_ae_cb => $_[2]) : () }, AnyEvent::CondVar:: |
… | |
… | |
1087 | } |
1104 | } |
1088 | |
1105 | |
1089 | $SIGPIPE_R |
1106 | $SIGPIPE_R |
1090 | or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n"; |
1107 | or Carp::croak "AnyEvent: unable to create a signal reporting pipe: $!\n"; |
1091 | |
1108 | |
|
|
1109 | # not strictly required, as $^F is normally 2, but let's make sure... |
1092 | fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC; |
1110 | fcntl $SIGPIPE_R, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC; |
1093 | fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC; |
1111 | fcntl $SIGPIPE_W, &Fcntl::F_SETFD, &Fcntl::FD_CLOEXEC; |
1094 | |
1112 | |
1095 | $SIG_IO = AnyEvent->io (fh => $SIGPIPE_R, poll => "r", cb => \&_signal_exec); |
1113 | $SIG_IO = AnyEvent->io (fh => $SIGPIPE_R, poll => "r", cb => \&_signal_exec); |
1096 | } |
1114 | } |
… | |
… | |
1098 | my $signal = uc $arg{signal} |
1116 | my $signal = uc $arg{signal} |
1099 | or Carp::croak "required option 'signal' is missing"; |
1117 | or Carp::croak "required option 'signal' is missing"; |
1100 | |
1118 | |
1101 | $SIG_CB{$signal}{$arg{cb}} = $arg{cb}; |
1119 | $SIG_CB{$signal}{$arg{cb}} = $arg{cb}; |
1102 | $SIG{$signal} ||= sub { |
1120 | $SIG{$signal} ||= sub { |
|
|
1121 | local $!; |
1103 | syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV; |
1122 | syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV; |
1104 | undef $SIG_EV{$signal}; |
1123 | undef $SIG_EV{$signal}; |
1105 | }; |
1124 | }; |
1106 | |
1125 | |
1107 | bless [$signal, $arg{cb}], "AnyEvent::Base::Signal" |
1126 | bless [$signal, $arg{cb}], "AnyEvent::Base::Signal" |