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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.389 by root, Sat Oct 20 04:39:57 2007 UTC vs.
Revision 1.402 by root, Mon Dec 17 07:03:32 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;
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 || {} });
… …
1548 1562
1549Expand crossfire pod fragments into protocol xml. 1563Expand crossfire pod fragments into protocol xml.
1550 1564
1551=cut 1565=cut
1552 1566
1567use re 'eval';
1568
1569my $group;
1570my $interior; $interior = qr{
1571 # match a pod interior sequence sans C<< >>
1572 (?:
1573 \ (.*?)\ (?{ $group = $^N })
1574 | < (??{$interior}) >
1575 )
1576}x;
1577
1553sub expand_cfpod { 1578sub expand_cfpod {
1554 ((my $self), (local $_)) = @_; 1579 my ($self, $pod) = @_;
1555 1580
1556 # escape & and < 1581 my $xml;
1557 s/&/&amp;/g;
1558 s/(?<![BIUGHT])</&lt;/g;
1559 1582
1560 # this is buggy, it needs to properly take care of nested <'s 1583 while () {
1584 if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
1585 $group = $1;
1561 1586
1562 1 while 1587 $group =~ s/&/&amp;/g;
1563 # replace B<>, I<>, U<> etc. 1588 $group =~ s/</&lt;/g;
1564 s/B<([^\>]*)>/<b>$1<\/b>/ 1589
1565 || s/I<([^\>]*)>/<i>$1<\/i>/ 1590 $xml .= $group;
1566 || s/U<([^\>]*)>/<u>$1<\/u>/ 1591 } elsif ($pod =~ m%\G
1567 || s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/ 1592 ([BCGHITU])
1568 # replace G<male|female> tags 1593 <
1569 || s{G<([^>|]*)\|([^>]*)>}{ 1594 (?:
1570 $self->gender ? $2 : $1 1595 ([^<>]*) (?{ $group = $^N })
1571 }ge 1596 | < $interior >
1572 # replace H<hint text> 1597 )
1573 || s{H<([^\>]*)>} 1598 >
1599 %gcsx
1574 { 1600 ) {
1601 my ($code, $data) = ($1, $group);
1602
1603 if ($code eq "B") {
1604 $xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
1605 } elsif ($code eq "I") {
1606 $xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
1607 } elsif ($code eq "U") {
1608 $xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
1609 } elsif ($code eq "C") {
1610 $xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
1611 } elsif ($code eq "T") {
1612 $xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
1613 } elsif ($code eq "G") {
1614 my ($male, $female) = split /\|/, $data;
1615 $data = $self->gender ? $female : $male;
1616 $xml .= expand_cfpod ($self, $data);
1617 } elsif ($code eq "H") {
1575 ("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>", 1618 $xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
1576 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>", 1619 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1577 "") 1620 "")
1578 [$self->{hintmode}] 1621 [$self->{hintmode}];
1622 } else {
1623 $xml .= "error processing '$code($data)' directive";
1579 }ge; 1624 }
1625 } else {
1626 if ($pod =~ /\G(.+)/) {
1627 warn "parse error while expanding $pod (at $1)";
1628 }
1629 last;
1630 }
1631 }
1580 1632
1633 for ($xml) {
1581 # create single paragraphs (very hackish) 1634 # create single paragraphs (very hackish)
1582 s/(?<=\S)\n(?=\w)/ /g; 1635 s/(?<=\S)\n(?=\w)/ /g;
1583 1636
1584 # compress some whitespace 1637 # compress some whitespace
1585 s/\s+\n/\n/g; # ws line-ends 1638 s/\s+\n/\n/g; # ws line-ends
1586 s/\n\n+/\n/g; # double lines 1639 s/\n\n+/\n/g; # double lines
1587 s/^\n+//; # beginning lines 1640 s/^\n+//; # beginning lines
1588 s/\n+$//; # ending lines 1641 s/\n+$//; # ending lines
1642 }
1589 1643
1590 $_ 1644 $xml
1591} 1645}
1646
1647no re 'eval';
1592 1648
1593sub hintmode { 1649sub hintmode {
1594 $_[0]{hintmode} = $_[1] if @_ > 1; 1650 $_[0]{hintmode} = $_[1] if @_ > 1;
1595 $_[0]{hintmode} 1651 $_[0]{hintmode}
1596} 1652}
… …
2583 $rmp->{origin_y} = $exit->y; 2639 $rmp->{origin_y} = $exit->y;
2584 } 2640 }
2585 2641
2586 $rmp->{random_seed} ||= $exit->random_seed; 2642 $rmp->{random_seed} ||= $exit->random_seed;
2587 2643
2588 my $data = cf::to_json $rmp; 2644 my $data = cf::encode_json $rmp;
2589 my $md5 = Digest::MD5::md5_hex $data; 2645 my $md5 = Digest::MD5::md5_hex $data;
2590 my $meta = "$RANDOMDIR/$md5.meta"; 2646 my $meta = "$RANDOMDIR/$md5.meta";
2591 2647
2592 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2648 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2593 aio_write $fh, 0, (length $data), $data, 0; 2649 aio_write $fh, 0, (length $data), $data, 0;
… …
2666the message, with C<log> being the default. If C<$color> is negative, suppress 2722the message, with C<log> being the default. If C<$color> is negative, suppress
2667the message unless the client supports the msg packet. 2723the message unless the client supports the msg packet.
2668 2724
2669=cut 2725=cut
2670 2726
2727# non-persistent channels (usually the info channel)
2671our %CHANNEL = ( 2728our %CHANNEL = (
2672 "c/identify" => { 2729 "c/identify" => {
2673 id => "infobox", 2730 id => "infobox",
2674 title => "Identify", 2731 title => "Identify",
2675 reply => undef, 2732 reply => undef,
… …
2691 id => "infobox", 2748 id => "infobox",
2692 title => "Look", 2749 title => "Look",
2693 reply => undef, 2750 reply => undef,
2694 tooltip => "What you saw there", 2751 tooltip => "What you saw there",
2695 }, 2752 },
2753 "c/who" => {
2754 id => "infobox",
2755 title => "Players",
2756 reply => undef,
2757 tooltip => "Shows players who are currently online",
2758 },
2759 "c/body" => {
2760 id => "infobox",
2761 title => "Body Parts",
2762 reply => undef,
2763 tooltip => "Shows which body parts you posess and are available",
2764 },
2765 "c/uptime" => {
2766 id => "infobox",
2767 title => "Uptime",
2768 reply => undef,
2769 tooltip => "How long the server has been running since last restart",
2770 },
2771 "c/mapinfo" => {
2772 id => "infobox",
2773 title => "Map Info",
2774 reply => undef,
2775 tooltip => "Information related to the maps",
2776 },
2696); 2777);
2697 2778
2698sub cf::client::send_msg { 2779sub cf::client::send_msg {
2699 my ($self, $channel, $msg, $color, @extra) = @_; 2780 my ($self, $channel, $msg, $color, @extra) = @_;
2700 2781
… …
3239 # we must not ever block the main coroutine 3320 # we must not ever block the main coroutine
3240 local $Coro::idle = sub { 3321 local $Coro::idle = sub {
3241 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#
3242 (async { 3323 (async {
3243 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3324 $Coro::current->{desc} = "IDLE BUG HANDLER";
3244 Event::one_event; 3325 EV::loop EV::LOOP_ONESHOT;
3245 })->prio (Coro::PRIO_MAX); 3326 })->prio (Coro::PRIO_MAX);
3246 }; 3327 };
3247 3328
3248 reload_config; 3329 reload_config;
3249 db_init; 3330 db_init;
3250 load_extensions; 3331 load_extensions;
3251 3332
3252 $TICK_WATCHER->start; 3333 $TICK_WATCHER->start;
3334 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3253 Event::loop; 3335 EV::loop;
3254} 3336}
3255 3337
3256############################################################################# 3338#############################################################################
3257# initialisation and cleanup 3339# initialisation and cleanup
3258 3340
3259# install some emergency cleanup handlers 3341# install some emergency cleanup handlers
3260BEGIN { 3342BEGIN {
3343 our %SIGWATCHER = ();
3261 for my $signal (qw(INT HUP TERM)) { 3344 for my $signal (qw(INT HUP TERM)) {
3262 Event->signal ( 3345 $SIGWATCHER{$signal} = EV::signal $signal, sub {
3263 reentrant => 0,
3264 data => WF_AUTOCANCEL,
3265 signal => $signal,
3266 prio => 0,
3267 cb => sub {
3268 cf::cleanup "SIG$signal"; 3346 cf::cleanup "SIG$signal";
3269 },
3270 ); 3347 };
3271 } 3348 }
3272} 3349}
3273 3350
3274sub write_runtime { 3351sub write_runtime {
3275 my $runtime = "$LOCALDIR/runtime"; 3352 my $runtime = "$LOCALDIR/runtime";
… …
3369 warn "syncing database to disk"; 3446 warn "syncing database to disk";
3370 BDB::db_env_txn_checkpoint $DB_ENV; 3447 BDB::db_env_txn_checkpoint $DB_ENV;
3371 3448
3372 # 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
3373 3450
3374 warn "cancelling all WF_AUTOCANCEL watchers";
3375 for (Event::all_watchers) {
3376 $_->cancel if $_->data & WF_AUTOCANCEL;
3377 }
3378
3379 warn "flushing outstanding aio requests"; 3451 warn "flushing outstanding aio requests";
3380 for (;;) { 3452 for (;;) {
3381 BDB::flush; 3453 BDB::flush;
3382 IO::AIO::flush; 3454 IO::AIO::flush;
3383 Coro::cede_notself; 3455 Coro::cede_notself;
… …
3477 3549
3478sub reload_perl() { 3550sub reload_perl() {
3479 # doing reload synchronously and two reloads happen back-to-back, 3551 # doing reload synchronously and two reloads happen back-to-back,
3480 # coro crashes during coro_state_free->destroy here. 3552 # coro crashes during coro_state_free->destroy here.
3481 3553
3482 $RELOAD_WATCHER ||= Event->timer ( 3554 $RELOAD_WATCHER ||= EV::timer 0, 0, sub {
3483 reentrant => 0,
3484 after => 0,
3485 data => WF_AUTOCANCEL,
3486 cb => sub {
3487 do_reload_perl;
3488 undef $RELOAD_WATCHER; 3555 undef $RELOAD_WATCHER;
3489 }, 3556 do_reload_perl;
3490 ); 3557 };
3491} 3558}
3492 3559
3493register_command "reload" => sub { 3560register_command "reload" => sub {
3494 my ($who, $arg) = @_; 3561 my ($who, $arg) = @_;
3495 3562
… …
3525 my $signal = new Coro::Signal; 3592 my $signal = new Coro::Signal;
3526 push @WAIT_FOR_TICK_BEGIN, $signal; 3593 push @WAIT_FOR_TICK_BEGIN, $signal;
3527 $signal->wait; 3594 $signal->wait;
3528} 3595}
3529 3596
3530$TICK_WATCHER = Event->timer ( 3597$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
3531 reentrant => 0,
3532 parked => 1,
3533 prio => 0,
3534 at => $NEXT_TICK || $TICK,
3535 data => WF_AUTOCANCEL,
3536 cb => sub {
3537 if ($Coro::current != $Coro::main) { 3598 if ($Coro::current != $Coro::main) {
3538 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3599 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3539 unless ++$bug_warning > 10; 3600 unless ++$bug_warning > 10;
3540 return; 3601 return;
3541 } 3602 }
3542 3603
3543 $NOW = $tick_start = Event::time; 3604 $NOW = $tick_start = EV::now;
3544 3605
3545 cf::server_tick; # one server iteration 3606 cf::server_tick; # one server iteration
3546 3607
3547 $RUNTIME += $TICK; 3608 $RUNTIME += $TICK;
3548 $NEXT_TICK += $TICK; 3609 $NEXT_TICK += $TICK;
3549 3610
3550 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3611 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3551 $NEXT_RUNTIME_WRITE = $NOW + 10; 3612 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
3552 Coro::async_pool { 3613 Coro::async_pool {
3553 $Coro::current->{desc} = "runtime saver"; 3614 $Coro::current->{desc} = "runtime saver";
3554 write_runtime 3615 write_runtime
3555 or warn "ERROR: unable to write runtime file: $!"; 3616 or warn "ERROR: unable to write runtime file: $!";
3556 };
3557 } 3617 };
3618 }
3558 3619
3559 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3620 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3560 $sig->send; 3621 $sig->send;
3561 } 3622 }
3562 while (my $sig = shift @WAIT_FOR_TICK) { 3623 while (my $sig = shift @WAIT_FOR_TICK) {
3563 $sig->send; 3624 $sig->send;
3564 } 3625 }
3565 3626
3566 $NOW = Event::time;
3567
3568 # if we are delayed by four ticks or more, skip them all
3569 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
3570
3571 $TICK_WATCHER->at ($NEXT_TICK);
3572 $TICK_WATCHER->start;
3573
3574 $LOAD = ($NOW - $tick_start) / $TICK; 3627 $LOAD = ($NOW - $tick_start) / $TICK;
3575 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; 3628 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3576 3629
3577 _post_tick; 3630 _post_tick;
3578 }, 3631};
3579); 3632$TICK_WATCHER->priority (EV::MAXPRI);
3580 3633
3581{ 3634{
3635 # configure BDB
3636
3582 BDB::min_parallel 8; 3637 BDB::min_parallel 8;
3583 BDB::max_poll_time $TICK * 0.1; 3638 BDB::max_poll_reqs $TICK * 0.1;
3584 $BDB_POLL_WATCHER = Event->io (
3585 reentrant => 0,
3586 fd => BDB::poll_fileno,
3587 poll => 'r',
3588 prio => 0,
3589 data => WF_AUTOCANCEL,
3590 cb => \&BDB::poll_cb,
3591 );
3592
3593 BDB::set_sync_prepare {
3594 my $status;
3595 my $current = $Coro::current;
3596 (
3597 sub {
3598 $status = $!;
3599 $current->ready; undef $current;
3600 },
3601 sub {
3602 Coro::schedule while defined $current;
3603 $! = $status;
3604 },
3605 )
3606 };
3607 3639
3608 unless ($DB_ENV) { 3640 unless ($DB_ENV) {
3609 $DB_ENV = BDB::db_env_create; 3641 $DB_ENV = BDB::db_env_create;
3610 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC 3642 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
3611 | BDB::LOG_AUTOREMOVE, 1); 3643 | BDB::LOG_AUTOREMOVE, 1);
… …
3626 3658
3627 cf::cleanup "db_env_open(db): $@" if $@; 3659 cf::cleanup "db_env_open(db): $@" if $@;
3628 }; 3660 };
3629 } 3661 }
3630 3662
3631 $BDB_DEADLOCK_WATCHER = Event->timer ( 3663 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
3632 after => 3,
3633 interval => 1,
3634 hard => 1,
3635 prio => 0,
3636 data => WF_AUTOCANCEL,
3637 cb => sub {
3638 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { }; 3664 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
3639 },
3640 ); 3665 };
3641 $BDB_CHECKPOINT_WATCHER = Event->timer ( 3666 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
3642 after => 11,
3643 interval => 60,
3644 hard => 1,
3645 prio => 0,
3646 data => WF_AUTOCANCEL,
3647 cb => sub {
3648 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { }; 3667 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
3649 },
3650 ); 3668 };
3651 $BDB_TRICKLE_WATCHER = Event->timer ( 3669 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
3652 after => 5,
3653 interval => 10,
3654 hard => 1,
3655 prio => 0,
3656 data => WF_AUTOCANCEL,
3657 cb => sub {
3658 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { }; 3670 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
3659 },
3660 ); 3671 };
3661} 3672}
3662 3673
3663{ 3674{
3675 # configure IO::AIO
3676
3664 IO::AIO::min_parallel 8; 3677 IO::AIO::min_parallel 8;
3665
3666 undef $Coro::AIO::WATCHER;
3667 IO::AIO::max_poll_time $TICK * 0.1; 3678 IO::AIO::max_poll_time $TICK * 0.1;
3668 $AIO_POLL_WATCHER = Event->io (
3669 reentrant => 0,
3670 data => WF_AUTOCANCEL,
3671 fd => IO::AIO::poll_fileno,
3672 poll => 'r',
3673 prio => 0,
3674 cb => \&IO::AIO::poll_cb,
3675 );
3676} 3679}
3677 3680
3678my $_log_backtrace; 3681my $_log_backtrace;
3679 3682
3680sub _log_backtrace { 3683sub _log_backtrace {

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