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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.409 by root, Mon Jan 14 11:41:48 2008 UTC vs.
Revision 1.434 by root, Thu May 29 03:27:37 2008 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program. If not, see <http://www.gnu.org/licenses/>.
18#
19# The authors can be reached via e-mail to <support@deliantra.net>
20#
21
1package cf; 22package cf;
2 23
3use utf8; 24use utf8;
4use strict; 25use strict;
5 26
6use Symbol; 27use Symbol;
7use List::Util; 28use List::Util;
8use Socket; 29use Socket;
9use EV 1.86; 30use EV;
10use Opcode; 31use Opcode;
11use Safe; 32use Safe;
12use Safe::Hole; 33use Safe::Hole;
13use Storable (); 34use Storable ();
14 35
15use Coro 4.32 (); 36use Coro ();
16use Coro::State; 37use Coro::State;
17use Coro::Handle; 38use Coro::Handle;
18use Coro::EV; 39use Coro::AnyEvent;
19use Coro::Timer; 40use Coro::Timer;
20use Coro::Signal; 41use Coro::Signal;
21use Coro::Semaphore; 42use Coro::Semaphore;
43use Coro::AnyEvent;
22use Coro::AIO; 44use Coro::AIO;
23use Coro::BDB; 45use Coro::BDB;
24use Coro::Storable; 46use Coro::Storable;
25use Coro::Util (); 47use Coro::Util ();
26 48
… …
28use BDB (); 50use BDB ();
29use Data::Dumper; 51use Data::Dumper;
30use Digest::MD5; 52use Digest::MD5;
31use Fcntl; 53use Fcntl;
32use YAML (); 54use YAML ();
33use IO::AIO 2.51 (); 55use IO::AIO ();
34use Time::HiRes; 56use Time::HiRes;
35use Compress::LZF; 57use Compress::LZF;
36use Digest::MD5 (); 58use Digest::MD5 ();
59
60AnyEvent::detect;
61
62IO::AIO::max_poll_reqs 1;#d#
37 63
38# configure various modules to our taste 64# configure various modules to our taste
39# 65#
40$Storable::canonical = 1; # reduce rsync transfers 66$Storable::canonical = 1; # reduce rsync transfers
41Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 67Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
… …
69our $RANDOMDIR = "$LOCALDIR/random"; 95our $RANDOMDIR = "$LOCALDIR/random";
70our $BDBDIR = "$LOCALDIR/db"; 96our $BDBDIR = "$LOCALDIR/db";
71our %RESOURCE; 97our %RESOURCE;
72 98
73our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 99our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
74our $TICK_WATCHER;
75our $AIO_POLL_WATCHER;
76our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 100our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
77our $NEXT_TICK; 101our $NEXT_TICK;
78our $USE_FSYNC = 1; # use fsync to write maps - default off 102our $USE_FSYNC = 1; # use fsync to write maps - default off
79 103
80our $BDB_POLL_WATCHER;
81our $BDB_DEADLOCK_WATCHER; 104our $BDB_DEADLOCK_WATCHER;
82our $BDB_CHECKPOINT_WATCHER; 105our $BDB_CHECKPOINT_WATCHER;
83our $BDB_TRICKLE_WATCHER; 106our $BDB_TRICKLE_WATCHER;
84our $DB_ENV; 107our $DB_ENV;
85 108
… …
96# used to convert map paths into valid unix filenames by replacing / by ∕ 119# used to convert map paths into valid unix filenames by replacing / by ∕
97our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 120our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
98 121
99our $LOAD; # a number between 0 (idle) and 1 (too many objects) 122our $LOAD; # a number between 0 (idle) and 1 (too many objects)
100our $LOADAVG; # same thing, but with alpha-smoothing 123our $LOADAVG; # same thing, but with alpha-smoothing
124our $JITTER; # average jitter
101our $tick_start; # for load detecting purposes 125our $TICK_START; # for load detecting purposes
102 126
103binmode STDOUT; 127binmode STDOUT;
104binmode STDERR; 128binmode STDERR;
105 129
106# read virtual server time, if available 130# read virtual server time, if available
… …
192 LOG llevError, $msg; 216 LOG llevError, $msg;
193 }; 217 };
194} 218}
195 219
196$Coro::State::DIEHOOK = sub { 220$Coro::State::DIEHOOK = sub {
221 return unless $^S eq 0; # "eq", not "=="
222
223 if ($Coro::current == $Coro::main) {#d#
224 warn "DIEHOOK called in main context, Coro bug?\n";#d#
225 return;#d#
226 }#d#
227
228 # kill coroutine otherwise
197 warn Carp::longmess $_[0]; 229 warn Carp::longmess $_[0];
198 Coro::terminate; 230 Coro::terminate
199}; 231};
232
233$SIG{__DIE__} = sub { }; #d#?
200 234
201@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 235@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
202@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 236@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
203@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 237@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
204@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 238@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
… …
329 363
330 ! ! $LOCK{$key} 364 ! ! $LOCK{$key}
331} 365}
332 366
333sub freeze_mainloop { 367sub freeze_mainloop {
334 return unless $TICK_WATCHER->is_active; 368 tick_inhibit_inc;
335 369
336 my $guard = Coro::guard { 370 Coro::guard \&tick_inhibit_dec;
337 $TICK_WATCHER->start;
338 };
339 $TICK_WATCHER->stop;
340 $guard
341} 371}
342 372
343=item cf::periodic $interval, $cb 373=item cf::periodic $interval, $cb
344 374
345Like EV::periodic, but randomly selects a starting point so that the actions 375Like EV::periodic, but randomly selects a starting point so that the actions
… …
400 } 430 }
401 } 431 }
402}; 432};
403 433
404sub get_slot($;$$) { 434sub get_slot($;$$) {
435 return if tick_inhibit || $Coro::current == $Coro::main;
436
405 my ($time, $pri, $name) = @_; 437 my ($time, $pri, $name) = @_;
406 438
407 $time = $TICK * .6 if $time > $TICK * .6; 439 $time = $TICK * .6 if $time > $TICK * .6;
408 my $sig = new Coro::Signal; 440 my $sig = new Coro::Signal;
409 441
… …
446 # this is the main coro, too bad, we have to block 478 # this is the main coro, too bad, we have to block
447 # till the operation succeeds, freezing the server :/ 479 # till the operation succeeds, freezing the server :/
448 480
449 LOG llevError, Carp::longmess "sync job";#d# 481 LOG llevError, Carp::longmess "sync job";#d#
450 482
451 # TODO: use suspend/resume instead
452 # (but this is cancel-safe)
453 my $freeze_guard = freeze_mainloop; 483 my $freeze_guard = freeze_mainloop;
454 484
455 my $busy = 1; 485 my $busy = 1;
456 my @res; 486 my @res;
457 487
… …
468 } else { 498 } else {
469 EV::loop EV::LOOP_ONESHOT; 499 EV::loop EV::LOOP_ONESHOT;
470 } 500 }
471 } 501 }
472 502
473 $time = EV::time - $time; 503 my $time = EV::time - $time;
474 504
475 LOG llevError | logBacktrace, Carp::longmess "long sync job"
476 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
477
478 $tick_start += $time; # do not account sync jobs to server load 505 $TICK_START += $time; # do not account sync jobs to server load
479 506
480 wantarray ? @res : $res[0] 507 wantarray ? @res : $res[0]
481 } else { 508 } else {
482 # we are in another coroutine, how wonderful, everything just works 509 # we are in another coroutine, how wonderful, everything just works
483 510
… …
525 reset_signals; 552 reset_signals;
526 &$cb 553 &$cb
527 }, @args; 554 }, @args;
528 555
529 wantarray ? @res : $res[-1] 556 wantarray ? @res : $res[-1]
557}
558
559=item $coin = coin_from_name $name
560
561=cut
562
563our %coin_alias = (
564 "silver" => "silvercoin",
565 "silvercoin" => "silvercoin",
566 "silvercoins" => "silvercoin",
567 "gold" => "goldcoin",
568 "goldcoin" => "goldcoin",
569 "goldcoins" => "goldcoin",
570 "platinum" => "platinacoin",
571 "platinumcoin" => "platinacoin",
572 "platinumcoins" => "platinacoin",
573 "platina" => "platinacoin",
574 "platinacoin" => "platinacoin",
575 "platinacoins" => "platinacoin",
576 "royalty" => "royalty",
577 "royalties" => "royalty",
578);
579
580sub coin_from_name($) {
581 $coin_alias{$_[0]}
582 ? cf::arch::find $coin_alias{$_[0]}
583 : undef
530} 584}
531 585
532=item $value = cf::db_get $family => $key 586=item $value = cf::db_get $family => $key
533 587
534Returns a single value from the environment database. 588Returns a single value from the environment database.
… …
1090 utf8::decode (my $decname = $filename); 1144 utf8::decode (my $decname = $filename);
1091 warn sprintf "saving %s (%d,%d)\n", 1145 warn sprintf "saving %s (%d,%d)\n",
1092 $decname, length $$rdata, scalar @$objs; 1146 $decname, length $$rdata, scalar @$objs;
1093 1147
1094 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1148 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1095 chmod SAVE_MODE, $fh; 1149 aio_chmod $fh, SAVE_MODE;
1096 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1150 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1097 aio_fsync $fh if $cf::USE_FSYNC; 1151 aio_fsync $fh if $cf::USE_FSYNC;
1098 close $fh; 1152 aio_close $fh;
1099 1153
1100 if (@$objs) { 1154 if (@$objs) {
1101 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1155 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1102 chmod SAVE_MODE, $fh; 1156 aio_chmod $fh, SAVE_MODE;
1103 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs }; 1157 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1104 aio_write $fh, 0, (length $data), $data, 0; 1158 aio_write $fh, 0, (length $data), $data, 0;
1105 aio_fsync $fh if $cf::USE_FSYNC; 1159 aio_fsync $fh if $cf::USE_FSYNC;
1106 close $fh; 1160 aio_close $fh;
1107 aio_rename "$filename.pst~", "$filename.pst"; 1161 aio_rename "$filename.pst~", "$filename.pst";
1108 } 1162 }
1109 } else { 1163 } else {
1110 aio_unlink "$filename.pst"; 1164 aio_unlink "$filename.pst";
1111 } 1165 }
… …
1306 my $msg = $@ ? "$v->{path}: $@\n" 1360 my $msg = $@ ? "$v->{path}: $@\n"
1307 : "$v->{base}: extension inactive.\n"; 1361 : "$v->{base}: extension inactive.\n";
1308 1362
1309 if (exists $v->{meta}{mandatory}) { 1363 if (exists $v->{meta}{mandatory}) {
1310 warn $msg; 1364 warn $msg;
1311 warn "mandatory extension failed to load, exiting.\n"; 1365 cf::cleanup "mandatory extension failed to load, exiting.";
1312 exit 1;
1313 } 1366 }
1314 1367
1315 warn $msg; 1368 warn $msg;
1316 } 1369 }
1317 1370
… …
1406 my $f = new_from_file cf::object::thawer path $login 1459 my $f = new_from_file cf::object::thawer path $login
1407 or return; 1460 or return;
1408 1461
1409 my $pl = cf::player::load_pl $f 1462 my $pl = cf::player::load_pl $f
1410 or return; 1463 or return;
1464
1411 local $cf::PLAYER_LOADING{$login} = $pl; 1465 local $cf::PLAYER_LOADING{$login} = $pl;
1412 $f->resolve_delayed_derefs; 1466 $f->resolve_delayed_derefs;
1413 $cf::PLAYER{$login} = $pl 1467 $cf::PLAYER{$login} = $pl
1414 } 1468 }
1415 } 1469 }
… …
1425 1479
1426 return if $pl->{deny_save}; 1480 return if $pl->{deny_save};
1427 1481
1428 aio_mkdir playerdir $pl, 0770; 1482 aio_mkdir playerdir $pl, 0770;
1429 $pl->{last_save} = $cf::RUNTIME; 1483 $pl->{last_save} = $cf::RUNTIME;
1484
1485 cf::get_slot 0.01;
1430 1486
1431 $pl->save_pl ($path); 1487 $pl->save_pl ($path);
1432 cf::cede_to_tick; 1488 cf::cede_to_tick;
1433} 1489}
1434 1490
… …
1470 $pl->{deny_save} = 1; 1526 $pl->{deny_save} = 1;
1471 $pl->password ("*"); # this should lock out the player until we nuked the dir 1527 $pl->password ("*"); # this should lock out the player until we nuked the dir
1472 1528
1473 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1529 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1474 $pl->deactivate; 1530 $pl->deactivate;
1531 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1532 $pl->ob->check_score;
1475 $pl->invoke (cf::EVENT_PLAYER_QUIT); 1533 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1476 $pl->ns->destroy if $pl->ns; 1534 $pl->ns->destroy if $pl->ns;
1477 1535
1478 my $path = playerdir $pl; 1536 my $path = playerdir $pl;
1479 my $temp = "$path~$cf::RUNTIME~deleting~"; 1537 my $temp = "$path~$cf::RUNTIME~deleting~";
… …
1518 1576
1519 for my $login (@$dirs) { 1577 for my $login (@$dirs) {
1520 my $path = path $login; 1578 my $path = path $login;
1521 1579
1522 # a .pst is a dead give-away for a valid player 1580 # a .pst is a dead give-away for a valid player
1523 unless (-e "$path.pst") { 1581 # if no pst file found, open and chekc for blocked users
1582 if (aio_stat "$path.pst") {
1524 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next; 1583 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1525 aio_read $fh, 0, 512, my $buf, 0 or next; 1584 aio_read $fh, 0, 512, my $buf, 0 or next;
1526 $buf !~ /^password -------------$/m or next; # official not-valid tag 1585 $buf !~ /^password -------------$/m or next; # official not-valid tag
1527 } 1586 }
1528 1587
… …
1727our $MAX_RESET = 3600; 1786our $MAX_RESET = 3600;
1728our $DEFAULT_RESET = 3000; 1787our $DEFAULT_RESET = 3000;
1729 1788
1730sub generate_random_map { 1789sub generate_random_map {
1731 my ($self, $rmp) = @_; 1790 my ($self, $rmp) = @_;
1791
1792 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1793
1732 # mit "rum" bekleckern, nicht 1794 # mit "rum" bekleckern, nicht
1733 $self->_create_random_map ( 1795 $self->_create_random_map (
1734 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1796 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1735 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1797 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1736 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1798 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1858 1920
1859# the temporary/swap location 1921# the temporary/swap location
1860sub save_path { 1922sub save_path {
1861 my ($self) = @_; 1923 my ($self) = @_;
1862 1924
1863 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1925 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1864 "$TMPDIR/$path.map" 1926 "$TMPDIR/$path.map"
1865} 1927}
1866 1928
1867# the unique path, undef == no special unique path 1929# the unique path, undef == no special unique path
1868sub uniq_path { 1930sub uniq_path {
1869 my ($self) = @_; 1931 my ($self) = @_;
1870 1932
1871 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1933 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1872 "$UNIQUEDIR/$path" 1934 "$UNIQUEDIR/$path"
1873} 1935}
1874 1936
1875# and all this just because we cannot iterate over 1937# and all this just because we cannot iterate over
1876# all maps in C++... 1938# all maps in C++...
… …
1974 2036
1975 cf::lock_wait "map_data:$path";#d#remove 2037 cf::lock_wait "map_data:$path";#d#remove
1976 cf::lock_wait "map_find:$path"; 2038 cf::lock_wait "map_find:$path";
1977 2039
1978 $cf::MAP{$path} || do { 2040 $cf::MAP{$path} || do {
1979 my $guard1 = cf::lock_acquire "map_find:$path";
1980 my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it 2041 my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
2042 my $guard2 = cf::lock_acquire "map_find:$path";
1981 2043
1982 my $map = new_from_path cf::map $path 2044 my $map = new_from_path cf::map $path
1983 or return; 2045 or return;
1984 2046
1985 $map->{last_save} = $cf::RUNTIME; 2047 $map->{last_save} = $cf::RUNTIME;
… …
1988 or return; 2050 or return;
1989 2051
1990 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?) 2052 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1991 # doing this can freeze the server in a sync job, obviously 2053 # doing this can freeze the server in a sync job, obviously
1992 #$cf::WAIT_FOR_TICK->wait; 2054 #$cf::WAIT_FOR_TICK->wait;
2055 undef $guard2;
1993 undef $guard1; 2056 undef $guard1;
1994 undef $guard2;
1995 $map->reset; 2057 $map->reset;
1996 return find $path; 2058 return find $path;
1997 } 2059 }
1998 2060
1999 $cf::MAP{$path} = $map 2061 $cf::MAP{$path} = $map
… …
2062 } 2124 }
2063 2125
2064 $self->{last_save} = $cf::RUNTIME; 2126 $self->{last_save} = $cf::RUNTIME;
2065 $self->last_access ($cf::RUNTIME); 2127 $self->last_access ($cf::RUNTIME);
2066 2128
2067 $self->in_memory (cf::MAP_IN_MEMORY); 2129 $self->in_memory (cf::MAP_ACTIVE);
2068 } 2130 }
2069 2131
2070 $self->post_load; 2132 $self->post_load;
2071} 2133}
2072 2134
… …
2130 my ($path, $origin, $load) = @_; 2192 my ($path, $origin, $load) = @_;
2131 2193
2132 $path = normalise $path, $origin && $origin->{path}; 2194 $path = normalise $path, $origin && $origin->{path};
2133 2195
2134 if (my $map = $cf::MAP{$path}) { 2196 if (my $map = $cf::MAP{$path}) {
2135 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY; 2197 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2136 } 2198 }
2137 2199
2138 $MAP_PREFETCH{$path} |= $load; 2200 $MAP_PREFETCH{$path} |= $load;
2139 2201
2140 $MAP_PREFETCHER ||= cf::async { 2202 $MAP_PREFETCHER ||= cf::async {
… …
2177 cf::async { 2239 cf::async {
2178 $Coro::current->{desc} = "map player save"; 2240 $Coro::current->{desc} = "map player save";
2179 $_->contr->save for $self->players; 2241 $_->contr->save for $self->players;
2180 }; 2242 };
2181 2243
2244 cf::get_slot 0.02;
2245
2182 if ($uniq) { 2246 if ($uniq) {
2183 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2247 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2184 $self->_save_objects ($uniq, cf::IO_UNIQUES); 2248 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2185 } else { 2249 } else {
2186 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2250 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
… …
2194 $self->save; 2258 $self->save;
2195 2259
2196 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2260 my $lock = cf::lock_acquire "map_data:$self->{path}";
2197 2261
2198 return if $self->players; 2262 return if $self->players;
2199 return if $self->in_memory != cf::MAP_IN_MEMORY; 2263 return if $self->in_memory != cf::MAP_ACTIVE;
2200 return if $self->{deny_save}; 2264 return if $self->{deny_save};
2201 2265
2202 $self->in_memory (cf::MAP_SWAPPED); 2266 $self->in_memory (cf::MAP_SWAPPED);
2203 2267
2204 $self->deactivate; 2268 $self->deactivate;
… …
2322 2386
2323sub unique_maps() { 2387sub unique_maps() {
2324 [ 2388 [
2325 map { 2389 map {
2326 utf8::decode $_; 2390 utf8::decode $_;
2327 /\.map$/ 2391 s/\.map$//; # TODO future compatibility hack
2392 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2393 ? ()
2328 ? normalise $_ 2394 : normalise $_
2329 : ()
2330 } @{ aio_readdir $UNIQUEDIR or [] } 2395 } @{ aio_readdir $UNIQUEDIR or [] }
2331 ] 2396 ]
2332} 2397}
2333 2398
2334package cf;
2335
2336=back 2399=back
2337 2400
2338=head3 cf::object 2401=head3 cf::object
2339 2402
2340=cut 2403=cut
… …
2343 2406
2344=over 4 2407=over 4
2345 2408
2346=item $ob->inv_recursive 2409=item $ob->inv_recursive
2347 2410
2348Returns the inventory of the object _and_ their inventories, recursively. 2411Returns the inventory of the object I<and> their inventories, recursively,
2412but I<not> the object itself.
2349 2413
2350=cut 2414=cut
2351 2415
2352sub inv_recursive_; 2416sub inv_recursive_;
2353sub inv_recursive_ { 2417sub inv_recursive_ {
… …
2358 inv_recursive_ inv $_[0] 2422 inv_recursive_ inv $_[0]
2359} 2423}
2360 2424
2361=item $ref = $ob->ref 2425=item $ref = $ob->ref
2362 2426
2363creates and returns a persistent reference to an objetc that can be stored as a string. 2427Creates and returns a persistent reference to an object that can be stored as a string.
2364 2428
2365=item $ob = cf::object::deref ($refstring) 2429=item $ob = cf::object::deref ($refstring)
2366 2430
2367returns the objetc referenced by refstring. may return undef when it cnanot find the object, 2431returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2368even if the object actually exists. May block. 2432even if the object actually exists. May block.
… …
2400can be C<undef>. Does the right thing when the player is currently in a 2464can be C<undef>. Does the right thing when the player is currently in a
2401dialogue with the given NPC character. 2465dialogue with the given NPC character.
2402 2466
2403=cut 2467=cut
2404 2468
2469our $SAY_CHANNEL = {
2470 id => "say",
2471 title => "Map",
2472 reply => "say ",
2473 tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
2474};
2475
2476our $CHAT_CHANNEL = {
2477 id => "chat",
2478 title => "Chat",
2479 reply => "chat ",
2480 tooltip => "Player chat and shouts, global to the server.",
2481};
2482
2405# rough implementation of a future "reply" method that works 2483# rough implementation of a future "reply" method that works
2406# with dialog boxes. 2484# with dialog boxes.
2407#TODO: the first argument must go, split into a $npc->reply_to ( method 2485#TODO: the first argument must go, split into a $npc->reply_to ( method
2408sub cf::object::player::reply($$$;$) { 2486sub cf::object::player::reply($$$;$) {
2409 my ($self, $npc, $msg, $flags) = @_; 2487 my ($self, $npc, $msg, $flags) = @_;
… …
2420 my $dialog = $pl->{npc_dialog}; 2498 my $dialog = $pl->{npc_dialog};
2421 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg)); 2499 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2422 2500
2423 } else { 2501 } else {
2424 $msg = $npc->name . " says: $msg" if $npc; 2502 $msg = $npc->name . " says: $msg" if $npc;
2425 $self->message ($msg, $flags); 2503 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2426 } 2504 }
2427 } 2505 }
2428} 2506}
2429 2507
2430=item $object->send_msg ($channel, $msg, $color, [extra...]) 2508=item $object->send_msg ($channel, $msg, $color, [extra...])
… …
2625} 2703}
2626 2704
2627sub prepare_random_map { 2705sub prepare_random_map {
2628 my ($exit) = @_; 2706 my ($exit) = @_;
2629 2707
2630 my $guard = cf::lock_acquire "exit_prepare:$exit";
2631
2632 # all this does is basically replace the /! path by 2708 # all this does is basically replace the /! path by
2633 # a new random map path (?random/...) with a seed 2709 # a new random map path (?random/...) with a seed
2634 # that depends on the exit object 2710 # that depends on the exit object
2635 2711
2636 my $rmp = parse_random_map_params $exit->msg; 2712 my $rmp = parse_random_map_params $exit->msg;
… …
2638 if ($exit->map) { 2714 if ($exit->map) {
2639 $rmp->{region} = $exit->region->name; 2715 $rmp->{region} = $exit->region->name;
2640 $rmp->{origin_map} = $exit->map->path; 2716 $rmp->{origin_map} = $exit->map->path;
2641 $rmp->{origin_x} = $exit->x; 2717 $rmp->{origin_x} = $exit->x;
2642 $rmp->{origin_y} = $exit->y; 2718 $rmp->{origin_y} = $exit->y;
2719
2720 $exit->map->touch;
2643 } 2721 }
2644 2722
2645 $rmp->{random_seed} ||= $exit->random_seed; 2723 $rmp->{random_seed} ||= $exit->random_seed;
2646 2724
2647 my $data = cf::encode_json $rmp; 2725 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2648 my $md5 = Digest::MD5::md5_hex $data; 2726 my $md5 = Digest::MD5::md5_hex $data;
2649 my $meta = "$RANDOMDIR/$md5.meta"; 2727 my $meta = "$RANDOMDIR/$md5.meta";
2650 2728
2651 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2729 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2652 aio_write $fh, 0, (length $data), $data, 0; 2730 aio_write $fh, 0, (length $data), $data, 0;
2653 undef $fh; 2731 undef $fh;
2654 aio_rename "$meta~", $meta; 2732 aio_rename "$meta~", $meta;
2655 2733
2734 my $slaying = "?random/$md5";
2735
2736 if ($exit->valid) {
2656 $exit->slaying ("?random/$md5"); 2737 $exit->slaying ("?random/$md5");
2657 $exit->msg (undef); 2738 $exit->msg (undef);
2739 }
2658 } 2740 }
2659} 2741}
2660 2742
2661sub cf::object::player::enter_exit { 2743sub cf::object::player::enter_exit {
2662 my ($self, $exit) = @_; 2744 my ($self, $exit) = @_;
2663 2745
2664 return unless $self->type == cf::PLAYER; 2746 return unless $self->type == cf::PLAYER;
2665 2747
2666 if ($exit->slaying eq "/!") {
2667 #TODO: this should de-fi-ni-te-ly not be a sync-job
2668 # the problem is that $exit might not survive long enough
2669 # so it needs to be done right now, right here
2670 cf::sync_job { prepare_random_map $exit };
2671 }
2672
2673 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2674 my $hp = $exit->stats->hp;
2675 my $sp = $exit->stats->sp;
2676
2677 $self->enter_link; 2748 $self->enter_link;
2678 2749
2679 # if exit is damned, update players death & WoR home-position
2680 $self->contr->savebed ($slaying, $hp, $sp)
2681 if $exit->flag (FLAG_DAMNED);
2682
2683 (async { 2750 (async {
2684 $Coro::current->{desc} = "enter_exit $slaying $hp $sp"; 2751 $Coro::current->{desc} = "enter_exit";
2685 2752
2686 $self->deactivate_recursive; # just to be sure
2687 unless (eval { 2753 unless (eval {
2754 $self->deactivate_recursive; # just to be sure
2755
2756 # random map handling
2757 {
2758 my $guard = cf::lock_acquire "exit_prepare:$exit";
2759
2760 prepare_random_map $exit
2761 if $exit->slaying eq "/!";
2762 }
2763
2764 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2765 my $x = $exit->stats->hp;
2766 my $y = $exit->stats->sp;
2767
2688 $self->goto ($slaying, $hp, $sp); 2768 $self->goto ($map, $x, $y);
2689 2769
2770 # if exit is damned, update players death & WoR home-position
2771 $self->contr->savebed ($map, $x, $y)
2772 if $exit->flag (cf::FLAG_DAMNED);
2773
2690 1; 2774 1
2691 }) { 2775 }) {
2692 $self->message ("Something went wrong deep within the crossfire server. " 2776 $self->message ("Something went wrong deep within the crossfire server. "
2693 . "I'll try to bring you back to the map you were before. " 2777 . "I'll try to bring you back to the map you were before. "
2694 . "Please report this to the dungeon master!", 2778 . "Please report this to the dungeon master!",
2695 cf::NDI_UNIQUE | cf::NDI_RED); 2779 cf::NDI_UNIQUE | cf::NDI_RED);
… …
2775 id => "infobox", 2859 id => "infobox",
2776 title => "Map Info", 2860 title => "Map Info",
2777 reply => undef, 2861 reply => undef,
2778 tooltip => "Information related to the maps", 2862 tooltip => "Information related to the maps",
2779 }, 2863 },
2864 "c/party" => {
2865 id => "party",
2866 title => "Party",
2867 reply => "gsay ",
2868 tooltip => "Messages and chat related to your party",
2869 },
2780); 2870);
2781 2871
2782sub cf::client::send_msg { 2872sub cf::client::send_msg {
2783 my ($self, $channel, $msg, $color, @extra) = @_; 2873 my ($self, $channel, $msg, $color, @extra) = @_;
2784 2874
… …
3021 3111
3022The following functions and methods are available within a safe environment: 3112The following functions and methods are available within a safe environment:
3023 3113
3024 cf::object 3114 cf::object
3025 contr pay_amount pay_player map x y force_find force_add destroy 3115 contr pay_amount pay_player map x y force_find force_add destroy
3026 insert remove name archname title slaying race decrease_ob_nr 3116 insert remove name archname title slaying race decrease split
3027 3117
3028 cf::object::player 3118 cf::object::player
3029 player 3119 player
3030 3120
3031 cf::player 3121 cf::player
… …
3036 3126
3037=cut 3127=cut
3038 3128
3039for ( 3129for (
3040 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y 3130 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3041 insert remove inv name archname title slaying race 3131 insert remove inv nrof name archname title slaying race
3042 decrease_ob_nr destroy)], 3132 decrease split destroy)],
3043 ["cf::object::player" => qw(player)], 3133 ["cf::object::player" => qw(player)],
3044 ["cf::player" => qw(peaceful)], 3134 ["cf::player" => qw(peaceful)],
3045 ["cf::map" => qw(trigger)], 3135 ["cf::map" => qw(trigger)],
3046) { 3136) {
3047 no strict 'refs'; 3137 no strict 'refs';
… …
3255 while (my ($k, $v) = each %$want) { 3345 while (my ($k, $v) = each %$want) {
3256 $ns->fx_want ($k, $v); 3346 $ns->fx_want ($k, $v);
3257 } 3347 }
3258}; 3348};
3259 3349
3350sub load_resource_file($) {
3351 my $guard = lock_acquire "load_resource_file";
3352
3353 my $status = load_resource_file_ $_[0];
3354 get_slot 0.1, 100;
3355 cf::arch::commit_load;
3356
3357 $status
3358}
3359
3260sub reload_regions { 3360sub reload_regions {
3261 # HACK to clear player env face cache, we need some signal framework 3361 # HACK to clear player env face cache, we need some signal framework
3262 # for this (global event?) 3362 # for this (global event?)
3263 %ext::player_env::MUSIC_FACE_CACHE = (); 3363 %ext::player_env::MUSIC_FACE_CACHE = ();
3264 3364
… …
3277} 3377}
3278 3378
3279sub reload_archetypes { 3379sub reload_archetypes {
3280 load_resource_file "$DATADIR/archetypes" 3380 load_resource_file "$DATADIR/archetypes"
3281 or die "unable to load archetypes\n"; 3381 or die "unable to load archetypes\n";
3282 #d# NEED to laod twice to resolve forward references
3283 # this really needs to be done in an extra post-pass
3284 # (which needs to be synchronous, so solve it differently)
3285 load_resource_file "$DATADIR/archetypes"
3286 or die "unable to load archetypes\n";
3287} 3382}
3288 3383
3289sub reload_treasures { 3384sub reload_treasures {
3290 load_resource_file "$DATADIR/treasures" 3385 load_resource_file "$DATADIR/treasures"
3291 or die "unable to load treasurelists\n"; 3386 or die "unable to load treasurelists\n";
3292} 3387}
3293 3388
3294sub reload_resources { 3389sub reload_resources {
3295 warn "reloading resource files...\n"; 3390 warn "reloading resource files...\n";
3296 3391
3392 reload_facedata;
3393 reload_archetypes;
3297 reload_regions; 3394 reload_regions;
3298 reload_facedata;
3299 #reload_archetypes;#d#
3300 reload_archetypes;
3301 reload_treasures; 3395 reload_treasures;
3302 3396
3303 warn "finished reloading resource files\n"; 3397 warn "finished reloading resource files\n";
3304} 3398}
3305 3399
3306sub init { 3400sub init {
3401 my $guard = freeze_mainloop;
3402
3307 reload_resources; 3403 reload_resources;
3308} 3404}
3309 3405
3310sub reload_config { 3406sub reload_config {
3311 open my $fh, "<:utf8", "$CONFDIR/config" 3407 open my $fh, "<:utf8", "$CONFDIR/config"
… …
3336 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3432 $Coro::current->{desc} = "IDLE BUG HANDLER";
3337 EV::loop EV::LOOP_ONESHOT; 3433 EV::loop EV::LOOP_ONESHOT;
3338 })->prio (Coro::PRIO_MAX); 3434 })->prio (Coro::PRIO_MAX);
3339 }; 3435 };
3340 3436
3437 {
3438 my $guard = freeze_mainloop;
3341 reload_config; 3439 reload_config;
3342 db_init; 3440 db_init;
3343 load_extensions; 3441 load_extensions;
3344 3442
3345 $TICK_WATCHER->start;
3346 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3443 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3444 }
3445
3347 EV::loop; 3446 EV::loop;
3348} 3447}
3349 3448
3350############################################################################# 3449#############################################################################
3351# initialisation and cleanup 3450# initialisation and cleanup
… …
3358 cf::cleanup "SIG$signal"; 3457 cf::cleanup "SIG$signal";
3359 }; 3458 };
3360 } 3459 }
3361} 3460}
3362 3461
3363sub write_runtime { 3462sub write_runtime_sync {
3364 my $runtime = "$LOCALDIR/runtime"; 3463 my $runtime = "$LOCALDIR/runtime";
3365 3464
3366 # first touch the runtime file to show we are still running: 3465 # first touch the runtime file to show we are still running:
3367 # the fsync below can take a very very long time. 3466 # the fsync below can take a very very long time.
3368 3467
… …
3394 and return; 3493 and return;
3395 3494
3396 warn "runtime file written.\n"; 3495 warn "runtime file written.\n";
3397 3496
3398 1 3497 1
3498}
3499
3500our $uuid_lock;
3501our $uuid_skip;
3502
3503sub write_uuid_sync($) {
3504 $uuid_skip ||= $_[0];
3505
3506 return if $uuid_lock;
3507 local $uuid_lock = 1;
3508
3509 my $uuid = "$LOCALDIR/uuid";
3510
3511 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3512 or return;
3513
3514 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
3515 $uuid_skip = 0;
3516
3517 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3518 and return;
3519
3520 # always fsync - this file is important
3521 aio_fsync $fh
3522 and return;
3523
3524 close $fh
3525 or return;
3526
3527 aio_rename "$uuid~", $uuid
3528 and return;
3529
3530 warn "uuid file written ($value).\n";
3531
3532 1
3533
3534}
3535
3536sub write_uuid($$) {
3537 my ($skip, $sync) = @_;
3538
3539 $sync ? write_uuid_sync $skip
3540 : async { write_uuid_sync $skip };
3399} 3541}
3400 3542
3401sub emergency_save() { 3543sub emergency_save() {
3402 my $freeze_guard = cf::freeze_mainloop; 3544 my $freeze_guard = cf::freeze_mainloop;
3403 3545
… …
3425 warn "end emergency map save\n"; 3567 warn "end emergency map save\n";
3426 3568
3427 warn "begin emergency database checkpoint\n"; 3569 warn "begin emergency database checkpoint\n";
3428 BDB::db_env_txn_checkpoint $DB_ENV; 3570 BDB::db_env_txn_checkpoint $DB_ENV;
3429 warn "end emergency database checkpoint\n"; 3571 warn "end emergency database checkpoint\n";
3572
3573 warn "begin write uuid\n";
3574 write_uuid_sync 1;
3575 warn "end write uuid\n";
3430 }; 3576 };
3431 3577
3432 warn "leave emergency perl save\n"; 3578 warn "leave emergency perl save\n";
3433} 3579}
3434 3580
… …
3449 warn "reloading..."; 3595 warn "reloading...";
3450 3596
3451 warn "entering sync_job"; 3597 warn "entering sync_job";
3452 3598
3453 cf::sync_job { 3599 cf::sync_job {
3454 cf::write_runtime; # external watchdog should not bark 3600 cf::write_runtime_sync; # external watchdog should not bark
3455 cf::emergency_save; 3601 cf::emergency_save;
3456 cf::write_runtime; # external watchdog should not bark 3602 cf::write_runtime_sync; # external watchdog should not bark
3457 3603
3458 warn "syncing database to disk"; 3604 warn "syncing database to disk";
3459 BDB::db_env_txn_checkpoint $DB_ENV; 3605 BDB::db_env_txn_checkpoint $DB_ENV;
3460 3606
3461 # if anything goes wrong in here, we should simply crash as we already saved 3607 # if anything goes wrong in here, we should simply crash as we already saved
… …
3548 warn "leaving sync_job"; 3694 warn "leaving sync_job";
3549 3695
3550 1 3696 1
3551 } or do { 3697 } or do {
3552 warn $@; 3698 warn $@;
3553 warn "error while reloading, exiting."; 3699 cf::cleanup "error while reloading, exiting.";
3554 exit 1;
3555 }; 3700 };
3556 3701
3557 warn "reloaded"; 3702 warn "reloaded";
3558}; 3703};
3559 3704
… …
3587 3732
3588our @WAIT_FOR_TICK; 3733our @WAIT_FOR_TICK;
3589our @WAIT_FOR_TICK_BEGIN; 3734our @WAIT_FOR_TICK_BEGIN;
3590 3735
3591sub wait_for_tick { 3736sub wait_for_tick {
3592 return unless $TICK_WATCHER->is_active;
3593 return if $Coro::current == $Coro::main; 3737 return if tick_inhibit || $Coro::current == $Coro::main;
3594 3738
3595 my $signal = new Coro::Signal; 3739 my $signal = new Coro::Signal;
3596 push @WAIT_FOR_TICK, $signal; 3740 push @WAIT_FOR_TICK, $signal;
3597 $signal->wait; 3741 $signal->wait;
3598} 3742}
3599 3743
3600sub wait_for_tick_begin { 3744sub wait_for_tick_begin {
3601 return unless $TICK_WATCHER->is_active;
3602 return if $Coro::current == $Coro::main; 3745 return if tick_inhibit || $Coro::current == $Coro::main;
3603 3746
3604 my $signal = new Coro::Signal; 3747 my $signal = new Coro::Signal;
3605 push @WAIT_FOR_TICK_BEGIN, $signal; 3748 push @WAIT_FOR_TICK_BEGIN, $signal;
3606 $signal->wait; 3749 $signal->wait;
3607} 3750}
3608 3751
3609$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub { 3752sub tick {
3610 if ($Coro::current != $Coro::main) { 3753 if ($Coro::current != $Coro::main) {
3611 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3754 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3612 unless ++$bug_warning > 10; 3755 unless ++$bug_warning > 10;
3613 return; 3756 return;
3614 } 3757 }
3615 3758
3616 $NOW = $tick_start = EV::now;
3617
3618 cf::server_tick; # one server iteration 3759 cf::server_tick; # one server iteration
3619
3620 $RUNTIME += $TICK;
3621 $NEXT_TICK = $_[0]->at;
3622 3760
3623 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3761 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3624 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.; 3762 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
3625 Coro::async_pool { 3763 Coro::async_pool {
3626 $Coro::current->{desc} = "runtime saver"; 3764 $Coro::current->{desc} = "runtime saver";
3627 write_runtime 3765 write_runtime_sync
3628 or warn "ERROR: unable to write runtime file: $!"; 3766 or warn "ERROR: unable to write runtime file: $!";
3629 }; 3767 };
3630 } 3768 }
3631 3769
3632 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3770 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
… …
3634 } 3772 }
3635 while (my $sig = shift @WAIT_FOR_TICK) { 3773 while (my $sig = shift @WAIT_FOR_TICK) {
3636 $sig->send; 3774 $sig->send;
3637 } 3775 }
3638 3776
3639 $LOAD = ($NOW - $tick_start) / $TICK; 3777 $LOAD = ($NOW - $TICK_START) / $TICK;
3640 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; 3778 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3641 3779
3642 _post_tick; 3780 if (0) {
3643}; 3781 if ($NEXT_TICK) {
3644$TICK_WATCHER->priority (EV::MAXPRI); 3782 my $jitter = $TICK_START - $NEXT_TICK;
3783 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
3784 warn "jitter $JITTER\n";#d#
3785 }
3786 }
3787}
3645 3788
3646{ 3789{
3647 # configure BDB 3790 # configure BDB
3648 3791
3649 BDB::min_parallel 8; 3792 BDB::min_parallel 8;
3650 BDB::max_poll_reqs $TICK * 0.1; 3793 BDB::max_poll_reqs $TICK * 0.1;
3651 $Coro::BDB::WATCHER->priority (1); 3794 $AnyEvent::BDB::WATCHER->priority (1);
3652 3795
3653 unless ($DB_ENV) { 3796 unless ($DB_ENV) {
3654 $DB_ENV = BDB::db_env_create; 3797 $DB_ENV = BDB::db_env_create;
3655 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC 3798 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
3656 | BDB::LOG_AUTOREMOVE, 1); 3799 | BDB::LOG_AUTOREMOVE, 1);
… …
3687{ 3830{
3688 # configure IO::AIO 3831 # configure IO::AIO
3689 3832
3690 IO::AIO::min_parallel 8; 3833 IO::AIO::min_parallel 8;
3691 IO::AIO::max_poll_time $TICK * 0.1; 3834 IO::AIO::max_poll_time $TICK * 0.1;
3692 $Coro::AIO::WATCHER->priority (1); 3835 #undef $AnyEvent::AIO::WATCHER;
3693} 3836}
3694 3837
3695my $_log_backtrace; 3838my $_log_backtrace;
3696 3839
3697sub _log_backtrace { 3840sub _log_backtrace {
… …
3735# load additional modules 3878# load additional modules
3736use cf::pod; 3879use cf::pod;
3737 3880
3738END { cf::emergency_save } 3881END { cf::emergency_save }
3739 3882
3883evthread_start IO::AIO::poll_fileno;
3884
37401 38851
3741 3886

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