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Comparing AnyEvent/lib/AnyEvent.pm (file contents):
Revision 1.257 by root, Sun Jul 26 00:17:25 2009 UTC vs.
Revision 1.264 by root, Wed Jul 29 12:42:09 2009 UTC

1=head1 NAME 1=head1 NAME
2 2
3AnyEvent - the DBI of event loop programming 3AnyEvent - the DBI of event loop programming
4 4
5EV, Event, Glib, Tk, Perl, Event::Lib, Irssi, IO::Async, Qt and POE are 5EV, Event, Glib, Tk, Perl, Event::Lib, Irssi, rxvt-unicode, IO::Async, Qt
6various supported event loops/environments. 6and POE are various supported event loops/environments.
7 7
8=head1 SYNOPSIS 8=head1 SYNOPSIS
9 9
10 use AnyEvent; 10 use AnyEvent;
11 11
… …
1086 1086
1087BEGIN { AnyEvent::common_sense } 1087BEGIN { AnyEvent::common_sense }
1088 1088
1089use Carp (); 1089use Carp ();
1090 1090
1091our $VERSION = 4.87; 1091our $VERSION = 4.881;
1092our $MODEL; 1092our $MODEL;
1093 1093
1094our $AUTOLOAD; 1094our $AUTOLOAD;
1095our @ISA; 1095our @ISA;
1096 1096
… …
1289} 1289}
1290 1290
1291# default implementation for ->signal 1291# default implementation for ->signal
1292 1292
1293our $HAVE_ASYNC_INTERRUPT; 1293our $HAVE_ASYNC_INTERRUPT;
1294
1295sub _have_async_interrupt() {
1296 $HAVE_ASYNC_INTERRUPT = 1*(!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT}
1297 && eval "use Async::Interrupt 1.0 (); 1")
1298 unless defined $HAVE_ASYNC_INTERRUPT;
1299
1300 $HAVE_ASYNC_INTERRUPT
1301}
1302
1294our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO); 1303our ($SIGPIPE_R, $SIGPIPE_W, %SIG_CB, %SIG_EV, $SIG_IO);
1295our (%SIG_ASY, %SIG_ASY_W); 1304our (%SIG_ASY, %SIG_ASY_W);
1296our ($SIG_COUNT, $SIG_TW); 1305our ($SIG_COUNT, $SIG_TW);
1297 1306
1298sub _signal_exec { 1307sub _signal_exec {
… …
1306 $_->() for values %{ $SIG_CB{$_} || {} }; 1315 $_->() for values %{ $SIG_CB{$_} || {} };
1307 } 1316 }
1308 } 1317 }
1309} 1318}
1310 1319
1311# install a dumym wakeupw atcher to reduce signal catching latency 1320# install a dummy wakeup watcher to reduce signal catching latency
1312sub _sig_add() { 1321sub _sig_add() {
1313 unless ($SIG_COUNT++) { 1322 unless ($SIG_COUNT++) {
1314 # try to align timer on a full-second boundary, if possible 1323 # try to align timer on a full-second boundary, if possible
1315 my $NOW = AnyEvent->now; 1324 my $NOW = AnyEvent->now;
1316 1325
… …
1325sub _sig_del { 1334sub _sig_del {
1326 undef $SIG_TW 1335 undef $SIG_TW
1327 unless --$SIG_COUNT; 1336 unless --$SIG_COUNT;
1328} 1337}
1329 1338
1339our $_sig_name_init; $_sig_name_init = sub {
1340 undef $_sig_name_init;
1341
1342 if (_have_async_interrupt) {
1343 *sig2num = \&Async::Interrupt::sig2num;
1344 *sig2name = \&Async::Interrupt::sig2name;
1345 } else {
1346 require Config;
1347
1348 my %signame2num;
1349 @signame2num{ split ' ', $Config::Config{sig_name} }
1350 = split ' ', $Config::Config{sig_num};
1351
1352 my @signum2name;
1353 @signum2name[values %signame2num] = keys %signame2num;
1354
1355 *sig2num = sub($) {
1356 $_[0] > 0 ? shift : $signame2num{+shift}
1357 };
1358 *sig2name = sub ($) {
1359 $_[0] > 0 ? $signum2name[+shift] : shift
1360 };
1361 }
1362};
1363
1364sub sig2num ($) { &$_sig_name_init; &sig2num }
1365sub sig2name($) { &$_sig_name_init; &sig2name }
1366
1330sub _signal { 1367sub _signal {
1331 my (undef, %arg) = @_; 1368 my (undef, %arg) = @_;
1332 1369
1333 my $signal = uc $arg{signal} 1370 my $signal = uc $arg{signal}
1334 or Carp::croak "required option 'signal' is missing"; 1371 or Carp::croak "required option 'signal' is missing";
1335 1372
1336 $SIG_CB{$signal}{$arg{cb}} = $arg{cb};
1337
1338 if ($HAVE_ASYNC_INTERRUPT) { 1373 if ($HAVE_ASYNC_INTERRUPT) {
1339 # async::interrupt 1374 # async::interrupt
1340 1375
1341 $SIG_ASY{$signal} ||= do { 1376 $signal = sig2num $signal;
1342 my $asy = new Async::Interrupt 1377 $SIG_CB{$signal}{$arg{cb}} = $arg{cb};
1378
1379 $SIG_ASY{$signal} ||= new Async::Interrupt
1343 cb => sub { undef $SIG_EV{$signal} }, 1380 cb => sub { undef $SIG_EV{$signal} },
1344 signal => $signal, 1381 signal => $signal,
1345 pipe => [$SIGPIPE_R->filenos], 1382 pipe => [$SIGPIPE_R->filenos],
1346 ;
1347 $asy->pipe_autodrain (0); 1383 pipe_autodrain => 0,
1348
1349 $asy
1350 }; 1384 ;
1351 1385
1352 } else { 1386 } else {
1353 # pure perl 1387 # pure perl
1388
1389 # AE::Util has been loaded in signal
1390 $signal = sig2name $signal;
1391 $SIG_CB{$signal}{$arg{cb}} = $arg{cb};
1354 1392
1355 $SIG{$signal} ||= sub { 1393 $SIG{$signal} ||= sub {
1356 local $!; 1394 local $!;
1357 syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV; 1395 syswrite $SIGPIPE_W, "\x00", 1 unless %SIG_EV;
1358 undef $SIG_EV{$signal}; 1396 undef $SIG_EV{$signal};
… …
1366 bless [$signal, $arg{cb}], "AnyEvent::Base::signal" 1404 bless [$signal, $arg{cb}], "AnyEvent::Base::signal"
1367} 1405}
1368 1406
1369sub signal { 1407sub signal {
1370 # probe for availability of Async::Interrupt 1408 # probe for availability of Async::Interrupt
1371 if (!$ENV{PERL_ANYEVENT_AVOID_ASYNC_INTERRUPT} && eval "use Async::Interrupt 0.6 (); 1") { 1409 if (_have_async_interrupt) {
1372 warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8; 1410 warn "AnyEvent: using Async::Interrupt for race-free signal handling.\n" if $VERBOSE >= 8;
1373 1411
1374 $HAVE_ASYNC_INTERRUPT = 1;
1375 $SIGPIPE_R = new Async::Interrupt::EventPipe; 1412 $SIGPIPE_R = new Async::Interrupt::EventPipe;
1376 $SIG_IO = AnyEvent->io (fh => $SIGPIPE_R->fileno, poll => "r", cb => \&_signal_exec); 1413 $SIG_IO = AnyEvent->io (fh => $SIGPIPE_R->fileno, poll => "r", cb => \&_signal_exec);
1377 1414
1378 } else { 1415 } else {
1379 warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8; 1416 warn "AnyEvent: using emulated perl signal handling with latency timer.\n" if $VERBOSE >= 8;

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