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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.393 by root, Fri Oct 26 04:47:00 2007 UTC vs.
Revision 1.404 by root, Mon Dec 17 07:27:58 2007 UTC

… …
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Socket; 8use Socket;
9use Event; 9use EV 1.86;
10use Opcode; 10use Opcode;
11use Safe; 11use Safe;
12use Safe::Hole; 12use Safe::Hole;
13use Storable (); 13use Storable ();
14 14
15use Coro 4.1 (); 15use Coro 4.32 ();
16use Coro::State; 16use Coro::State;
17use Coro::Handle; 17use Coro::Handle;
18use Coro::Event; 18use Coro::EV;
19use Coro::Timer; 19use Coro::Timer;
20use Coro::Signal; 20use Coro::Signal;
21use Coro::Semaphore; 21use Coro::Semaphore;
22use Coro::AIO; 22use Coro::AIO;
23use Coro::BDB;
23use Coro::Storable; 24use Coro::Storable;
24use Coro::Util (); 25use Coro::Util ();
25 26
26use JSON::XS (); 27use JSON::XS 2.01 ();
27use BDB (); 28use BDB ();
28use Data::Dumper; 29use Data::Dumper;
29use Digest::MD5; 30use Digest::MD5;
30use Fcntl; 31use Fcntl;
31use YAML::Syck (); 32use YAML::Syck ();
… …
37# configure various modules to our taste 38# configure various modules to our taste
38# 39#
39$Storable::canonical = 1; # reduce rsync transfers 40$Storable::canonical = 1; # reduce rsync transfers
40Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 41Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
41Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 42Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
42
43$Event::Eval = 1; # no idea why this is required, but it is
44 43
45# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 44# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
46$YAML::Syck::ImplicitUnicode = 1; 45$YAML::Syck::ImplicitUnicode = 1;
47 46
48$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 47$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
… …
76our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 75our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
77our $TICK_WATCHER; 76our $TICK_WATCHER;
78our $AIO_POLL_WATCHER; 77our $AIO_POLL_WATCHER;
79our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 78our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
80our $NEXT_TICK; 79our $NEXT_TICK;
81our $NOW;
82our $USE_FSYNC = 1; # use fsync to write maps - default off 80our $USE_FSYNC = 1; # use fsync to write maps - default off
83 81
84our $BDB_POLL_WATCHER; 82our $BDB_POLL_WATCHER;
85our $BDB_DEADLOCK_WATCHER; 83our $BDB_DEADLOCK_WATCHER;
86our $BDB_CHECKPOINT_WATCHER; 84our $BDB_CHECKPOINT_WATCHER;
… …
89 87
90our %CFG; 88our %CFG;
91 89
92our $UPTIME; $UPTIME ||= time; 90our $UPTIME; $UPTIME ||= time;
93our $RUNTIME; 91our $RUNTIME;
92our $NOW;
94 93
95our (%PLAYER, %PLAYER_LOADING); # all users 94our (%PLAYER, %PLAYER_LOADING); # all users
96our (%MAP, %MAP_LOADING ); # all maps 95our (%MAP, %MAP_LOADING ); # all maps
97our $LINK_MAP; # the special {link} map, which is always available 96our $LINK_MAP; # the special {link} map, which is always available
98 97
… …
162 161
163The raw value load value from the last tick. 162The raw value load value from the last tick.
164 163
165=item %cf::CFG 164=item %cf::CFG
166 165
167Configuration for the server, loaded from C</etc/crossfire/config>, or 166Configuration for the server, loaded from C</etc/deliantra-server/config>, or
168from wherever your confdir points to. 167from wherever your confdir points to.
169 168
170=item cf::wait_for_tick, cf::wait_for_tick_begin 169=item cf::wait_for_tick, cf::wait_for_tick_begin
171 170
172These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only 171These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
… …
215)) { 214)) {
216 no strict 'refs'; 215 no strict 'refs';
217 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 216 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
218} 217}
219 218
220$Event::DIED = sub { 219$EV::DIED = sub {
221 warn "error in event callback: @_"; 220 warn "error in event callback: @_";
222}; 221};
223 222
224############################################################################# 223#############################################################################
225 224
… …
248 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 247 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
249 $d 248 $d
250 } || "[unable to dump $_[0]: '$@']"; 249 } || "[unable to dump $_[0]: '$@']";
251} 250}
252 251
253=item $ref = cf::from_json $json 252=item $ref = cf::decode_json $json
254 253
255Converts a JSON string into the corresponding perl data structure. 254Converts a JSON string into the corresponding perl data structure.
256 255
257=item $json = cf::to_json $ref 256=item $json = cf::encode_json $ref
258 257
259Converts a perl data structure into its JSON representation. 258Converts a perl data structure into its JSON representation.
260 259
261=cut 260=cut
262 261
263our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 262our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
264 263
265sub to_json ($) { $json_coder->encode ($_[0]) } 264sub encode_json($) { $json_coder->encode ($_[0]) }
266sub from_json ($) { $json_coder->decode ($_[0]) } 265sub decode_json($) { $json_coder->decode ($_[0]) }
267 266
268=item cf::lock_wait $string 267=item cf::lock_wait $string
269 268
270Wait until the given lock is available. See cf::lock_acquire. 269Wait until the given lock is available. See cf::lock_acquire.
271 270
… …
334 my $guard = Coro::guard { 333 my $guard = Coro::guard {
335 $TICK_WATCHER->start; 334 $TICK_WATCHER->start;
336 }; 335 };
337 $TICK_WATCHER->stop; 336 $TICK_WATCHER->stop;
338 $guard 337 $guard
338}
339
340=item cf::periodic $interval, $cb
341
342Like EV::periodic, but randomly selects a starting point so that the actions
343get spread over timer.
344
345=cut
346
347sub periodic($$) {
348 my ($interval, $cb) = @_;
349
350 my $start = rand List::Util::min 180, $interval;
351
352 EV::periodic $start, $interval, 0, $cb
339} 353}
340 354
341=item cf::get_slot $time[, $priority[, $name]] 355=item cf::get_slot $time[, $priority[, $name]]
342 356
343Allocate $time seconds of blocking CPU time at priority C<$priority>: 357Allocate $time seconds of blocking CPU time at priority C<$priority>:
… …
406 420
407BEGIN { *async = \&Coro::async_pool } 421BEGIN { *async = \&Coro::async_pool }
408 422
409=item cf::sync_job { BLOCK } 423=item cf::sync_job { BLOCK }
410 424
411The design of Crossfire TRT requires that the main coroutine ($Coro::main) 425The design of Deliantra requires that the main coroutine ($Coro::main)
412is always able to handle events or runnable, as Crossfire TRT is only 426is always able to handle events or runnable, as Deliantra is only
413partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not 427partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
414acceptable. 428acceptable.
415 429
416If it must be done, put the blocking parts into C<sync_job>. This will run 430If it must be done, put the blocking parts into C<sync_job>. This will run
417the given BLOCK in another coroutine while waiting for the result. The 431the given BLOCK in another coroutine while waiting for the result. The
… …
422 436
423sub sync_job(&) { 437sub sync_job(&) {
424 my ($job) = @_; 438 my ($job) = @_;
425 439
426 if ($Coro::current == $Coro::main) { 440 if ($Coro::current == $Coro::main) {
427 my $time = Event::time; 441 my $time = EV::time;
428 442
429 # this is the main coro, too bad, we have to block 443 # this is the main coro, too bad, we have to block
430 # till the operation succeeds, freezing the server :/ 444 # till the operation succeeds, freezing the server :/
431 445
432 LOG llevError, Carp::longmess "sync job";#d# 446 LOG llevError, Carp::longmess "sync job";#d#
… …
447 461
448 while ($busy) { 462 while ($busy) {
449 if (Coro::nready) { 463 if (Coro::nready) {
450 Coro::cede_notself; 464 Coro::cede_notself;
451 } else { 465 } else {
452 Event::one_event; 466 EV::loop EV::LOOP_ONESHOT;
453 } 467 }
454 } 468 }
455 469
456 $time = Event::time - $time; 470 $time = EV::time - $time;
457 471
458 LOG llevError | logBacktrace, Carp::longmess "long sync job" 472 LOG llevError | logBacktrace, Carp::longmess "long sync job"
459 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active; 473 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
460 474
461 $tick_start += $time; # do not account sync jobs to server load 475 $tick_start += $time; # do not account sync jobs to server load
… …
491=item fork_call { }, $args 505=item fork_call { }, $args
492 506
493Executes the given code block with the given arguments in a seperate 507Executes the given code block with the given arguments in a seperate
494process, returning the results. Everything must be serialisable with 508process, returning the results. Everything must be serialisable with
495Coro::Storable. May, of course, block. Note that the executed sub may 509Coro::Storable. May, of course, block. Note that the executed sub may
496never block itself or use any form of Event handling. 510never block itself or use any form of event handling.
497 511
498=cut 512=cut
499 513
500sub fork_call(&@) { 514sub fork_call(&@) {
501 my ($cb, @args) = @_; 515 my ($cb, @args) = @_;
… …
662attach callbacks/event handlers (a collection of which is called an "attachment") 676attach callbacks/event handlers (a collection of which is called an "attachment")
663to it. All such attachable objects support the following methods. 677to it. All such attachable objects support the following methods.
664 678
665In the following description, CLASS can be any of C<global>, C<object> 679In the following description, CLASS can be any of C<global>, C<object>
666C<player>, C<client> or C<map> (i.e. the attachable objects in 680C<player>, C<client> or C<map> (i.e. the attachable objects in
667Crossfire TRT). 681Deliantra).
668 682
669=over 4 683=over 4
670 684
671=item $attachable->attach ($attachment, key => $value...) 685=item $attachable->attach ($attachment, key => $value...)
672 686
… …
1042cf::attachable->attach ( 1056cf::attachable->attach (
1043 prio => -1000000, 1057 prio => -1000000,
1044 on_instantiate => sub { 1058 on_instantiate => sub {
1045 my ($obj, $data) = @_; 1059 my ($obj, $data) = @_;
1046 1060
1047 $data = from_json $data; 1061 $data = decode_json $data;
1048 1062
1049 for (@$data) { 1063 for (@$data) {
1050 my ($name, $args) = @$_; 1064 my ($name, $args) = @$_;
1051 1065
1052 $obj->attach ($name, %{$args || {} }); 1066 $obj->attach ($name, %{$args || {} });
… …
2625 $rmp->{origin_y} = $exit->y; 2639 $rmp->{origin_y} = $exit->y;
2626 } 2640 }
2627 2641
2628 $rmp->{random_seed} ||= $exit->random_seed; 2642 $rmp->{random_seed} ||= $exit->random_seed;
2629 2643
2630 my $data = cf::to_json $rmp; 2644 my $data = cf::encode_json $rmp;
2631 my $md5 = Digest::MD5::md5_hex $data; 2645 my $md5 = Digest::MD5::md5_hex $data;
2632 my $meta = "$RANDOMDIR/$md5.meta"; 2646 my $meta = "$RANDOMDIR/$md5.meta";
2633 2647
2634 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2648 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2635 aio_write $fh, 0, (length $data), $data, 0; 2649 aio_write $fh, 0, (length $data), $data, 0;
… …
3306 # we must not ever block the main coroutine 3320 # we must not ever block the main coroutine
3307 local $Coro::idle = sub { 3321 local $Coro::idle = sub {
3308 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3322 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3309 (async { 3323 (async {
3310 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3324 $Coro::current->{desc} = "IDLE BUG HANDLER";
3311 Event::one_event; 3325 EV::loop EV::LOOP_ONESHOT;
3312 })->prio (Coro::PRIO_MAX); 3326 })->prio (Coro::PRIO_MAX);
3313 }; 3327 };
3314 3328
3315 reload_config; 3329 reload_config;
3316 db_init; 3330 db_init;
3317 load_extensions; 3331 load_extensions;
3318 3332
3319 $TICK_WATCHER->start; 3333 $TICK_WATCHER->start;
3334 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3320 Event::loop; 3335 EV::loop;
3321} 3336}
3322 3337
3323############################################################################# 3338#############################################################################
3324# initialisation and cleanup 3339# initialisation and cleanup
3325 3340
3326# install some emergency cleanup handlers 3341# install some emergency cleanup handlers
3327BEGIN { 3342BEGIN {
3343 our %SIGWATCHER = ();
3328 for my $signal (qw(INT HUP TERM)) { 3344 for my $signal (qw(INT HUP TERM)) {
3329 Event->signal ( 3345 $SIGWATCHER{$signal} = EV::signal $signal, sub {
3330 reentrant => 0,
3331 data => WF_AUTOCANCEL,
3332 signal => $signal,
3333 prio => 0,
3334 cb => sub {
3335 cf::cleanup "SIG$signal"; 3346 cf::cleanup "SIG$signal";
3336 },
3337 ); 3347 };
3338 } 3348 }
3339} 3349}
3340 3350
3341sub write_runtime { 3351sub write_runtime {
3342 my $runtime = "$LOCALDIR/runtime"; 3352 my $runtime = "$LOCALDIR/runtime";
… …
3436 warn "syncing database to disk"; 3446 warn "syncing database to disk";
3437 BDB::db_env_txn_checkpoint $DB_ENV; 3447 BDB::db_env_txn_checkpoint $DB_ENV;
3438 3448
3439 # if anything goes wrong in here, we should simply crash as we already saved 3449 # if anything goes wrong in here, we should simply crash as we already saved
3440 3450
3441 warn "cancelling all WF_AUTOCANCEL watchers";
3442 for (Event::all_watchers) {
3443 $_->cancel if $_->data & WF_AUTOCANCEL;
3444 }
3445
3446 warn "flushing outstanding aio requests"; 3451 warn "flushing outstanding aio requests";
3447 for (;;) { 3452 for (;;) {
3448 BDB::flush; 3453 BDB::flush;
3449 IO::AIO::flush; 3454 IO::AIO::flush;
3450 Coro::cede_notself; 3455 Coro::cede_notself;
… …
3544 3549
3545sub reload_perl() { 3550sub reload_perl() {
3546 # doing reload synchronously and two reloads happen back-to-back, 3551 # doing reload synchronously and two reloads happen back-to-back,
3547 # coro crashes during coro_state_free->destroy here. 3552 # coro crashes during coro_state_free->destroy here.
3548 3553
3549 $RELOAD_WATCHER ||= Event->timer ( 3554 $RELOAD_WATCHER ||= EV::timer 0, 0, sub {
3550 reentrant => 0,
3551 after => 0,
3552 data => WF_AUTOCANCEL,
3553 cb => sub {
3554 do_reload_perl;
3555 undef $RELOAD_WATCHER; 3555 undef $RELOAD_WATCHER;
3556 }, 3556 do_reload_perl;
3557 ); 3557 };
3558} 3558}
3559 3559
3560register_command "reload" => sub { 3560register_command "reload" => sub {
3561 my ($who, $arg) = @_; 3561 my ($who, $arg) = @_;
3562 3562
… …
3592 my $signal = new Coro::Signal; 3592 my $signal = new Coro::Signal;
3593 push @WAIT_FOR_TICK_BEGIN, $signal; 3593 push @WAIT_FOR_TICK_BEGIN, $signal;
3594 $signal->wait; 3594 $signal->wait;
3595} 3595}
3596 3596
3597$TICK_WATCHER = Event->timer ( 3597$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
3598 reentrant => 0,
3599 parked => 1,
3600 prio => 0,
3601 at => $NEXT_TICK || $TICK,
3602 data => WF_AUTOCANCEL,
3603 cb => sub {
3604 if ($Coro::current != $Coro::main) { 3598 if ($Coro::current != $Coro::main) {
3605 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3599 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3606 unless ++$bug_warning > 10; 3600 unless ++$bug_warning > 10;
3607 return; 3601 return;
3608 } 3602 }
3609 3603
3610 $NOW = $tick_start = Event::time; 3604 $NOW = $tick_start = EV::now;
3611 3605
3612 cf::server_tick; # one server iteration 3606 cf::server_tick; # one server iteration
3613 3607
3614 $RUNTIME += $TICK; 3608 $RUNTIME += $TICK;
3615 $NEXT_TICK += $TICK; 3609 $NEXT_TICK = $_[0]->at;
3616 3610
3617 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3611 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3618 $NEXT_RUNTIME_WRITE = $NOW + 10; 3612 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
3619 Coro::async_pool { 3613 Coro::async_pool {
3620 $Coro::current->{desc} = "runtime saver"; 3614 $Coro::current->{desc} = "runtime saver";
3621 write_runtime 3615 write_runtime
3622 or warn "ERROR: unable to write runtime file: $!"; 3616 or warn "ERROR: unable to write runtime file: $!";
3623 };
3624 } 3617 };
3618 }
3625 3619
3626 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3620 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3627 $sig->send; 3621 $sig->send;
3628 } 3622 }
3629 while (my $sig = shift @WAIT_FOR_TICK) { 3623 while (my $sig = shift @WAIT_FOR_TICK) {
3630 $sig->send; 3624 $sig->send;
3631 } 3625 }
3632 3626
3633 $NOW = Event::time;
3634
3635 # if we are delayed by four ticks or more, skip them all
3636 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
3637
3638 $TICK_WATCHER->at ($NEXT_TICK);
3639 $TICK_WATCHER->start;
3640
3641 $LOAD = ($NOW - $tick_start) / $TICK; 3627 $LOAD = ($NOW - $tick_start) / $TICK;
3642 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; 3628 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3643 3629
3644 _post_tick; 3630 _post_tick;
3645 }, 3631};
3646); 3632$TICK_WATCHER->priority (EV::MAXPRI);
3647 3633
3648{ 3634{
3635 # configure BDB
3636
3649 BDB::min_parallel 8; 3637 BDB::min_parallel 8;
3650 BDB::max_poll_time $TICK * 0.1; 3638 BDB::max_poll_reqs $TICK * 0.1;
3651 $BDB_POLL_WATCHER = Event->io ( 3639 $Coro::BDB::WATCHER->priority (1);
3652 reentrant => 0,
3653 fd => BDB::poll_fileno,
3654 poll => 'r',
3655 prio => 0,
3656 data => WF_AUTOCANCEL,
3657 cb => \&BDB::poll_cb,
3658 );
3659
3660 BDB::set_sync_prepare {
3661 my $status;
3662 my $current = $Coro::current;
3663 (
3664 sub {
3665 $status = $!;
3666 $current->ready; undef $current;
3667 },
3668 sub {
3669 Coro::schedule while defined $current;
3670 $! = $status;
3671 },
3672 )
3673 };
3674 3640
3675 unless ($DB_ENV) { 3641 unless ($DB_ENV) {
3676 $DB_ENV = BDB::db_env_create; 3642 $DB_ENV = BDB::db_env_create;
3677 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC 3643 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
3678 | BDB::LOG_AUTOREMOVE, 1); 3644 | BDB::LOG_AUTOREMOVE, 1);
… …
3693 3659
3694 cf::cleanup "db_env_open(db): $@" if $@; 3660 cf::cleanup "db_env_open(db): $@" if $@;
3695 }; 3661 };
3696 } 3662 }
3697 3663
3698 $BDB_DEADLOCK_WATCHER = Event->timer ( 3664 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
3699 after => 3,
3700 interval => 1,
3701 hard => 1,
3702 prio => 0,
3703 data => WF_AUTOCANCEL,
3704 cb => sub {
3705 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { }; 3665 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
3706 },
3707 ); 3666 };
3708 $BDB_CHECKPOINT_WATCHER = Event->timer ( 3667 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
3709 after => 11,
3710 interval => 60,
3711 hard => 1,
3712 prio => 0,
3713 data => WF_AUTOCANCEL,
3714 cb => sub {
3715 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { }; 3668 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
3716 },
3717 ); 3669 };
3718 $BDB_TRICKLE_WATCHER = Event->timer ( 3670 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
3719 after => 5,
3720 interval => 10,
3721 hard => 1,
3722 prio => 0,
3723 data => WF_AUTOCANCEL,
3724 cb => sub {
3725 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { }; 3671 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
3726 },
3727 ); 3672 };
3728} 3673}
3729 3674
3730{ 3675{
3676 # configure IO::AIO
3677
3731 IO::AIO::min_parallel 8; 3678 IO::AIO::min_parallel 8;
3732
3733 undef $Coro::AIO::WATCHER;
3734 IO::AIO::max_poll_time $TICK * 0.1; 3679 IO::AIO::max_poll_time $TICK * 0.1;
3735 $AIO_POLL_WATCHER = Event->io ( 3680 $Coro::AIO::WATCHER->priority (1);
3736 reentrant => 0,
3737 data => WF_AUTOCANCEL,
3738 fd => IO::AIO::poll_fileno,
3739 poll => 'r',
3740 prio => 0,
3741 cb => \&IO::AIO::poll_cb,
3742 );
3743} 3681}
3744 3682
3745my $_log_backtrace; 3683my $_log_backtrace;
3746 3684
3747sub _log_backtrace { 3685sub _log_backtrace {

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