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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.445 by root, Wed Sep 10 18:18:10 2008 UTC vs.
Revision 1.462 by root, Tue Dec 23 06:58:23 2008 UTC

… …
32use Opcode; 32use Opcode;
33use Safe; 33use Safe;
34use Safe::Hole; 34use Safe::Hole;
35use Storable (); 35use Storable ();
36 36
37use Guard ();
37use Coro (); 38use Coro ();
38use Coro::State; 39use Coro::State;
39use Coro::Handle; 40use Coro::Handle;
40use Coro::EV; 41use Coro::EV;
41use Coro::AnyEvent; 42use Coro::AnyEvent;
42use Coro::Timer; 43use Coro::Timer;
43use Coro::Signal; 44use Coro::Signal;
44use Coro::Semaphore; 45use Coro::Semaphore;
46use Coro::SemaphoreSet;
45use Coro::AnyEvent; 47use Coro::AnyEvent;
46use Coro::AIO; 48use Coro::AIO;
47use Coro::BDB 1.6; 49use Coro::BDB 1.6;
48use Coro::Storable; 50use Coro::Storable;
49use Coro::Util (); 51use Coro::Util ();
… …
63 65
64# configure various modules to our taste 66# configure various modules to our taste
65# 67#
66$Storable::canonical = 1; # reduce rsync transfers 68$Storable::canonical = 1; # reduce rsync transfers
67Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 69Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
70
71$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
72
73# make sure c-lzf reinitialises itself
74Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
68Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 75Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
69
70$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
71 76
72sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 77sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
73 78
74our %COMMAND = (); 79our %COMMAND = ();
75our %COMMAND_TIME = (); 80our %COMMAND_TIME = ();
… …
78our %EXTCMD = (); 83our %EXTCMD = ();
79our %EXTICMD = (); 84our %EXTICMD = ();
80our %EXT_CORO = (); # coroutines bound to extensions 85our %EXT_CORO = (); # coroutines bound to extensions
81our %EXT_MAP = (); # pluggable maps 86our %EXT_MAP = (); # pluggable maps
82 87
83our $RELOAD; # number of reloads so far 88our $RELOAD; # number of reloads so far, non-zero while in reload
84our @EVENT; 89our @EVENT;
85 90
86our $CONFDIR = confdir; 91our $CONFDIR = confdir;
87our $DATADIR = datadir; 92our $DATADIR = datadir;
88our $LIBDIR = "$DATADIR/ext"; 93our $LIBDIR = "$DATADIR/ext";
… …
125our $LOAD; # a number between 0 (idle) and 1 (too many objects) 130our $LOAD; # a number between 0 (idle) and 1 (too many objects)
126our $LOADAVG; # same thing, but with alpha-smoothing 131our $LOADAVG; # same thing, but with alpha-smoothing
127our $JITTER; # average jitter 132our $JITTER; # average jitter
128our $TICK_START; # for load detecting purposes 133our $TICK_START; # for load detecting purposes
129 134
135our @POST_INIT;
136
137our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
138
130binmode STDOUT; 139binmode STDOUT;
131binmode STDERR; 140binmode STDERR;
132 141
133# read virtual server time, if available 142# read virtual server time, if available
134unless ($RUNTIME || !-e $RUNTIMEFILE) { 143unless ($RUNTIME || !-e $RUNTIMEFILE) {
… …
302our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 311our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
303 312
304sub encode_json($) { $json_coder->encode ($_[0]) } 313sub encode_json($) { $json_coder->encode ($_[0]) }
305sub decode_json($) { $json_coder->decode ($_[0]) } 314sub decode_json($) { $json_coder->decode ($_[0]) }
306 315
316=item cf::post_init { BLOCK }
317
318Execute the given codeblock, I<after> all extensions have been (re-)loaded,
319but I<before> the server starts ticking again.
320
321The cdoeblock will have a single boolean argument to indicate whether this
322is a reload or not.
323
324=cut
325
326sub post_init(&) {
327 push @POST_INIT, shift;
328}
329
307=item cf::lock_wait $string 330=item cf::lock_wait $string
308 331
309Wait until the given lock is available. See cf::lock_acquire. 332Wait until the given lock is available. See cf::lock_acquire.
310 333
311=item my $lock = cf::lock_acquire $string 334=item my $lock = cf::lock_acquire $string
312 335
313Wait until the given lock is available and then acquires it and returns 336Wait until the given lock is available and then acquires it and returns
314a Coro::guard object. If the guard object gets destroyed (goes out of scope, 337a L<Guard> object. If the guard object gets destroyed (goes out of scope,
315for example when the coroutine gets canceled), the lock is automatically 338for example when the coroutine gets canceled), the lock is automatically
316returned. 339returned.
317 340
318Locks are *not* recursive, locking from the same coro twice results in a 341Locks are *not* recursive, locking from the same coro twice results in a
319deadlocked coro. 342deadlocked coro.
… …
325 348
326Return true if the lock is currently active, i.e. somebody has locked it. 349Return true if the lock is currently active, i.e. somebody has locked it.
327 350
328=cut 351=cut
329 352
330our %LOCK; 353our $LOCKS = new Coro::SemaphoreSet;
331our %LOCKER;#d#
332 354
333sub lock_wait($) { 355sub lock_wait($) {
334 my ($key) = @_; 356 $LOCKS->wait ($_[0]);
335
336 if ($LOCKER{$key} == $Coro::current) {#d#
337 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
338 return;#d#
339 }#d#
340
341 # wait for lock, if any
342 while ($LOCK{$key}) {
343 push @{ $LOCK{$key} }, $Coro::current;
344 Coro::schedule;
345 }
346} 357}
347 358
348sub lock_acquire($) { 359sub lock_acquire($) {
349 my ($key) = @_; 360 $LOCKS->guard ($_[0])
350
351 # wait, to be sure we are not locked
352 lock_wait $key;
353
354 $LOCK{$key} = [];
355 $LOCKER{$key} = $Coro::current;#d#
356
357 Coro::guard {
358 delete $LOCKER{$key};#d#
359 # wake up all waiters, to be on the safe side
360 $_->ready for @{ delete $LOCK{$key} };
361 }
362} 361}
363 362
364sub lock_active($) { 363sub lock_active($) {
365 my ($key) = @_; 364 $LOCKS->count ($_[0]) < 1
366
367 ! ! $LOCK{$key}
368} 365}
369 366
370sub freeze_mainloop { 367sub freeze_mainloop {
371 tick_inhibit_inc; 368 tick_inhibit_inc;
372 369
373 Coro::guard \&tick_inhibit_dec; 370 &Guard::guard (\&tick_inhibit_dec);
374} 371}
375 372
376=item cf::periodic $interval, $cb 373=item cf::periodic $interval, $cb
377 374
378Like 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
… …
730 727
731############################################################################# 728#############################################################################
732 729
733=head2 ATTACHABLE OBJECTS 730=head2 ATTACHABLE OBJECTS
734 731
735Many objects in crossfire are so-called attachable objects. That means you can 732Many objects in deliantra are so-called attachable objects. That means you can
736attach callbacks/event handlers (a collection of which is called an "attachment") 733attach callbacks/event handlers (a collection of which is called an "attachment")
737to it. All such attachable objects support the following methods. 734to it. All such attachable objects support the following methods.
738 735
739In the following description, CLASS can be any of C<global>, C<object> 736In the following description, CLASS can be any of C<global>, C<object>
740C<player>, C<client> or C<map> (i.e. the attachable objects in 737C<player>, C<client> or C<map> (i.e. the attachable objects in
… …
790=item cf::CLASS::attachment $name, ... 787=item cf::CLASS::attachment $name, ...
791 788
792Register an attachment by C<$name> through which attachable objects of the 789Register an attachment by C<$name> through which attachable objects of the
793given CLASS can refer to this attachment. 790given CLASS can refer to this attachment.
794 791
795Some classes such as crossfire maps and objects can specify attachments 792Some classes such as deliantra maps and objects can specify attachments
796that are attached at load/instantiate time, thus the need for a name. 793that are attached at load/instantiate time, thus the need for a name.
797 794
798These calls expect any number of the following handler/hook descriptions: 795These calls expect any number of the following handler/hook descriptions:
799 796
800=over 4 797=over 4
… …
1167 } else { 1164 } else {
1168 aio_unlink "$filename.pst"; 1165 aio_unlink "$filename.pst";
1169 } 1166 }
1170 1167
1171 aio_rename "$filename~", $filename; 1168 aio_rename "$filename~", $filename;
1169
1170 $filename =~ s%/[^/]+$%%;
1171 aio_pathsync $filename if $cf::USE_FSYNC;
1172 } else { 1172 } else {
1173 warn "FATAL: $filename~: $!\n"; 1173 warn "unable to save objects: $filename~: $!\n";
1174 } 1174 }
1175 } else { 1175 } else {
1176 aio_unlink $filename; 1176 aio_unlink $filename;
1177 aio_unlink "$filename.pst"; 1177 aio_unlink "$filename.pst";
1178 } 1178 }
… …
1269 my ($name, $cb) = @_; 1269 my ($name, $cb) = @_;
1270 1270
1271 $EXTICMD{$name} = $cb; 1271 $EXTICMD{$name} = $cb;
1272} 1272}
1273 1273
1274use File::Glob ();
1275
1274cf::player->attach ( 1276cf::player->attach (
1275 on_command => sub { 1277 on_command => sub {
1276 my ($pl, $name, $params) = @_; 1278 my ($pl, $name, $params) = @_;
1277 1279
1278 my $cb = $COMMAND{$name} 1280 my $cb = $COMMAND{$name}
… …
1309 } 1311 }
1310 1312
1311 cf::override; 1313 cf::override;
1312 }, 1314 },
1313); 1315);
1316
1317# "readahead" all extensions
1318sub cache_extensions {
1319 my $grp = IO::AIO::aio_group;
1320
1321 add $grp IO::AIO::aio_readdir $LIBDIR, sub {
1322 for (grep /\.ext$/, @{$_[0]}) {
1323 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1324 }
1325 };
1326
1327 $grp
1328}
1314 1329
1315sub load_extensions { 1330sub load_extensions {
1316 cf::sync_job { 1331 cf::sync_job {
1317 my %todo; 1332 my %todo;
1318 1333
… …
1388 1403
1389=back 1404=back
1390 1405
1391=head2 CORE EXTENSIONS 1406=head2 CORE EXTENSIONS
1392 1407
1393Functions and methods that extend core crossfire objects. 1408Functions and methods that extend core deliantra objects.
1394 1409
1395=cut 1410=cut
1396 1411
1397package cf::player; 1412package cf::player;
1398 1413
… …
1441 1456
1442sub exists($) { 1457sub exists($) {
1443 my ($login) = @_; 1458 my ($login) = @_;
1444 1459
1445 $cf::PLAYER{$login} 1460 $cf::PLAYER{$login}
1446 or cf::sync_job { !aio_stat path $login } 1461 or !aio_stat path $login
1447} 1462}
1448 1463
1449sub find($) { 1464sub find($) {
1450 return $cf::PLAYER{$_[0]} || do { 1465 return $cf::PLAYER{$_[0]} || do {
1451 my $login = $_[0]; 1466 my $login = $_[0];
… …
1622 } 1637 }
1623 1638
1624 \@paths 1639 \@paths
1625} 1640}
1626 1641
1627=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1642=item $protocol_xml = $player->expand_cfpod ($cfpod)
1628 1643
1629Expand crossfire pod fragments into protocol xml. 1644Expand deliantra pod fragments into protocol xml.
1630 1645
1631=item $player->ext_reply ($msgid, @msg) 1646=item $player->ext_reply ($msgid, @msg)
1632 1647
1633Sends an ext reply to the player. 1648Sends an ext reply to the player.
1634 1649
… …
1847 1862
1848 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go; 1863 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1849 "$UNIQUEDIR/$path" 1864 "$UNIQUEDIR/$path"
1850} 1865}
1851 1866
1852# and all this just because we cannot iterate over
1853# all maps in C++...
1854sub change_all_map_light {
1855 my ($change) = @_;
1856
1857 $_->change_map_light ($change)
1858 for grep $_->outdoor, values %cf::MAP;
1859}
1860
1861sub decay_objects { 1867sub decay_objects {
1862 my ($self) = @_; 1868 my ($self) = @_;
1863 1869
1864 return if $self->{deny_reset}; 1870 return if $self->{deny_reset};
1865 1871
… …
1947sub find { 1953sub find {
1948 my ($path, $origin) = @_; 1954 my ($path, $origin) = @_;
1949 1955
1950 $path = normalise $path, $origin && $origin->path; 1956 $path = normalise $path, $origin && $origin->path;
1951 1957
1952 cf::lock_wait "map_data:$path";#d#remove 1958 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1953 cf::lock_wait "map_find:$path"; 1959 my $guard2 = cf::lock_acquire "map_find:$path";
1954 1960
1955 $cf::MAP{$path} || do { 1961 $cf::MAP{$path} || do {
1956 my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1957 my $guard2 = cf::lock_acquire "map_find:$path";
1958
1959 my $map = new_from_path cf::map $path 1962 my $map = new_from_path cf::map $path
1960 or return; 1963 or return;
1961 1964
1962 $map->{last_save} = $cf::RUNTIME; 1965 $map->{last_save} = $cf::RUNTIME;
1963 1966
… …
2030 2033
2031 unless ($self->{deny_activate}) { 2034 unless ($self->{deny_activate}) {
2032 $self->decay_objects; 2035 $self->decay_objects;
2033 $self->fix_auto_apply; 2036 $self->fix_auto_apply;
2034 $self->update_buttons; 2037 $self->update_buttons;
2035 cf::cede_to_tick;
2036 $self->set_darkness_map;
2037 cf::cede_to_tick; 2038 cf::cede_to_tick;
2038 $self->activate; 2039 $self->activate;
2039 } 2040 }
2040 2041
2041 $self->{last_save} = $cf::RUNTIME; 2042 $self->{last_save} = $cf::RUNTIME;
… …
2448 2449
2449=item $player_object->enter_link 2450=item $player_object->enter_link
2450 2451
2451Freezes the player and moves him/her to a special map (C<{link}>). 2452Freezes the player and moves him/her to a special map (C<{link}>).
2452 2453
2453The player should be reasonably safe there for short amounts of time. You 2454The player should be reasonably safe there for short amounts of time (e.g.
2454I<MUST> call C<leave_link> as soon as possible, though. 2455for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2456though, as the palyer cannot control the character while it is on the link
2457map.
2455 2458
2456Will never block. 2459Will never block.
2457 2460
2458=item $player_object->leave_link ($map, $x, $y) 2461=item $player_object->leave_link ($map, $x, $y)
2459 2462
… …
2517 2520
2518 $map->load; 2521 $map->load;
2519 $map->load_neighbours; 2522 $map->load_neighbours;
2520 2523
2521 return unless $self->contr->active; 2524 return unless $self->contr->active;
2525 $self->flag (cf::FLAG_DEBUG, 0);#d# temp
2522 $self->activate_recursive; 2526 $self->activate_recursive;
2523 2527
2524 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2528 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2525 $self->enter_map ($map, $x, $y); 2529 $self->enter_map ($map, $x, $y);
2526} 2530}
… …
2689 $self->contr->savebed ($map, $x, $y) 2693 $self->contr->savebed ($map, $x, $y)
2690 if $exit->flag (cf::FLAG_DAMNED); 2694 if $exit->flag (cf::FLAG_DAMNED);
2691 2695
2692 1 2696 1
2693 }) { 2697 }) {
2694 $self->message ("Something went wrong deep within the crossfire server. " 2698 $self->message ("Something went wrong deep within the deliantra server. "
2695 . "I'll try to bring you back to the map you were before. " 2699 . "I'll try to bring you back to the map you were before. "
2696 . "Please report this to the dungeon master!", 2700 . "Please report this to the dungeon master!",
2697 cf::NDI_UNIQUE | cf::NDI_RED); 2701 cf::NDI_UNIQUE | cf::NDI_RED);
2698 2702
2699 warn "ERROR in enter_exit: $@"; 2703 warn "ERROR in enter_exit: $@";
… …
2765 id => "infobox", 2769 id => "infobox",
2766 title => "Body Parts", 2770 title => "Body Parts",
2767 reply => undef, 2771 reply => undef,
2768 tooltip => "Shows which body parts you posess and are available", 2772 tooltip => "Shows which body parts you posess and are available",
2769 }, 2773 },
2774 "c/skills" => {
2775 id => "infobox",
2776 title => "Skills",
2777 reply => undef,
2778 tooltip => "Shows your experience per skill and item power",
2779 },
2770 "c/uptime" => { 2780 "c/uptime" => {
2771 id => "infobox", 2781 id => "infobox",
2772 title => "Uptime", 2782 title => "Uptime",
2773 reply => undef, 2783 reply => undef,
2774 tooltip => "How long the server has been running since last restart", 2784 tooltip => "How long the server has been running since last restart",
… …
2783 id => "party", 2793 id => "party",
2784 title => "Party", 2794 title => "Party",
2785 reply => "gsay ", 2795 reply => "gsay ",
2786 tooltip => "Messages and chat related to your party", 2796 tooltip => "Messages and chat related to your party",
2787 }, 2797 },
2798 "c/say" => $SAY_CHANNEL,
2799 "c/chat" => $CHAT_CHANNEL,
2788); 2800);
2789 2801
2790sub cf::client::send_msg { 2802sub cf::client::send_msg {
2791 my ($self, $channel, $msg, $color, @extra) = @_; 2803 my ($self, $channel, $msg, $color, @extra) = @_;
2792 2804
2793 $msg = $self->pl->expand_cfpod ($msg); 2805 $msg = $self->pl->expand_cfpod ($msg)
2806 unless $color & cf::NDI_VERBATIM;
2794 2807
2795 $color &= cf::NDI_CLIENT_MASK; # just in case... 2808 $color &= cf::NDI_CLIENT_MASK; # just in case...
2796 2809
2797 # check predefined channels, for the benefit of C 2810 # check predefined channels, for the benefit of C
2798 if ($CHANNEL{$channel}) { 2811 if ($CHANNEL{$channel}) {
… …
3327 reload_treasures; 3340 reload_treasures;
3328 3341
3329 warn "finished reloading resource files\n"; 3342 warn "finished reloading resource files\n";
3330} 3343}
3331 3344
3332sub init {
3333 my $guard = freeze_mainloop;
3334
3335 evthread_start IO::AIO::poll_fileno;
3336
3337 reload_resources;
3338}
3339
3340sub reload_config { 3345sub reload_config {
3341 open my $fh, "<:utf8", "$CONFDIR/config" 3346 open my $fh, "<:utf8", "$CONFDIR/config"
3342 or return; 3347 or return;
3343 3348
3344 local $/; 3349 local $/;
… …
3376 seek $fh, 0, 0; 3381 seek $fh, 0, 0;
3377 print $fh $$; 3382 print $fh $$;
3378} 3383}
3379 3384
3380sub main { 3385sub main {
3381 atomic; 3386 cf::init_globals; # initialise logging
3387
3388 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3389 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3390 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3391 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3392
3393 cf::init_experience;
3394 cf::init_anim;
3395 cf::init_attackmess;
3396 cf::init_dynamic;
3397
3398 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3382 3399
3383 # we must not ever block the main coroutine 3400 # we must not ever block the main coroutine
3384 local $Coro::idle = sub { 3401 local $Coro::idle = sub {
3385 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3402 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3386 (async { 3403 (async {
3387 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3404 $Coro::current->{desc} = "IDLE BUG HANDLER";
3388 EV::loop EV::LOOP_ONESHOT; 3405 EV::loop EV::LOOP_ONESHOT;
3389 })->prio (Coro::PRIO_MAX); 3406 })->prio (Coro::PRIO_MAX);
3390 }; 3407 };
3391 3408
3392 { 3409 evthread_start IO::AIO::poll_fileno;
3393 my $guard = freeze_mainloop; 3410
3411 cf::sync_job {
3412 reload_resources;
3394 reload_config; 3413 reload_config;
3395 db_init; 3414 db_init;
3415
3416 cf::load_settings;
3417 cf::load_materials;
3418 cf::init_uuid;
3419 cf::init_signals;
3420 cf::init_commands;
3421 cf::init_skills;
3422
3423 cf::init_beforeplay;
3424
3425 atomic;
3426
3396 load_extensions; 3427 load_extensions;
3397 3428
3398 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3399 }
3400
3401 utime time, time, $RUNTIMEFILE; 3429 utime time, time, $RUNTIMEFILE;
3402 3430
3403 # no (long-running) fork's whatsoever before this point(!) 3431 # no (long-running) fork's whatsoever before this point(!)
3404 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD}; 3432 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3433
3434 (pop @POST_INIT)->(0) while @POST_INIT;
3435 };
3405 3436
3406 EV::loop; 3437 EV::loop;
3407} 3438}
3408 3439
3409############################################################################# 3440#############################################################################
… …
3467 my $uuid = "$LOCALDIR/uuid"; 3498 my $uuid = "$LOCALDIR/uuid";
3468 3499
3469 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3500 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3470 or return; 3501 or return;
3471 3502
3472 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3503 my $value = uuid_seq uuid_cur;
3504
3505 unless ($value) {
3506 warn "cowardly refusing to write zero uuid value!\n";
3507 return;
3508 }
3509
3510 my $value = uuid_str $value + $uuid_skip;
3473 $uuid_skip = 0; 3511 $uuid_skip = 0;
3474 3512
3475 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3513 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3476 and return; 3514 and return;
3477 3515
… …
3499} 3537}
3500 3538
3501sub emergency_save() { 3539sub emergency_save() {
3502 my $freeze_guard = cf::freeze_mainloop; 3540 my $freeze_guard = cf::freeze_mainloop;
3503 3541
3504 warn "enter emergency perl save\n"; 3542 warn "emergency_perl_save: enter\n";
3505 3543
3506 cf::sync_job { 3544 cf::sync_job {
3545 # this is a trade-off: we want to be very quick here, so
3546 # save all maps without fsync, and later call a global sync
3547 # (which in turn might be very very slow)
3548 local $USE_FSYNC = 0;
3549
3507 # use a peculiar iteration method to avoid tripping on perl 3550 # use a peculiar iteration method to avoid tripping on perl
3508 # refcount bugs in for. also avoids problems with players 3551 # refcount bugs in for. also avoids problems with players
3509 # and maps saved/destroyed asynchronously. 3552 # and maps saved/destroyed asynchronously.
3510 warn "begin emergency player save\n"; 3553 warn "emergency_perl_save: begin player save\n";
3511 for my $login (keys %cf::PLAYER) { 3554 for my $login (keys %cf::PLAYER) {
3512 my $pl = $cf::PLAYER{$login} or next; 3555 my $pl = $cf::PLAYER{$login} or next;
3513 $pl->valid or next; 3556 $pl->valid or next;
3514 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt 3557 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3515 $pl->save; 3558 $pl->save;
3516 } 3559 }
3517 warn "end emergency player save\n"; 3560 warn "emergency_perl_save: end player save\n";
3518 3561
3519 warn "begin emergency map save\n"; 3562 warn "emergency_perl_save: begin map save\n";
3520 for my $path (keys %cf::MAP) { 3563 for my $path (keys %cf::MAP) {
3521 my $map = $cf::MAP{$path} or next; 3564 my $map = $cf::MAP{$path} or next;
3522 $map->valid or next; 3565 $map->valid or next;
3523 $map->save; 3566 $map->save;
3524 } 3567 }
3525 warn "end emergency map save\n"; 3568 warn "emergency_perl_save: end map save\n";
3526 3569
3527 warn "begin emergency database checkpoint\n"; 3570 warn "emergency_perl_save: begin database checkpoint\n";
3528 BDB::db_env_txn_checkpoint $DB_ENV; 3571 BDB::db_env_txn_checkpoint $DB_ENV;
3529 warn "end emergency database checkpoint\n"; 3572 warn "emergency_perl_save: end database checkpoint\n";
3530 3573
3531 warn "begin write uuid\n"; 3574 warn "emergency_perl_save: begin write uuid\n";
3532 write_uuid_sync 1; 3575 write_uuid_sync 1;
3533 warn "end write uuid\n"; 3576 warn "emergency_perl_save: end write uuid\n";
3534 }; 3577 };
3535 3578
3579 warn "emergency_perl_save: starting sync()\n";
3580 IO::AIO::aio_sync sub {
3581 warn "emergency_perl_save: finished sync()\n";
3582 };
3583
3536 warn "leave emergency perl save\n"; 3584 warn "emergency_perl_save: leave\n";
3537} 3585}
3538 3586
3539sub post_cleanup { 3587sub post_cleanup {
3540 my ($make_core) = @_; 3588 my ($make_core) = @_;
3541 3589
… …
3567 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH}; 3615 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3568 for my $name (keys %$leaf_symtab) { 3616 for my $name (keys %$leaf_symtab) {
3569 _gv_clear *{"$pkg$name"}; 3617 _gv_clear *{"$pkg$name"};
3570# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"}; 3618# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3571 } 3619 }
3572 warn "cleared package #$pkg\n";#d# 3620 warn "cleared package $pkg\n";#d#
3573} 3621}
3574
3575our $RELOAD; # how many times to reload
3576 3622
3577sub do_reload_perl() { 3623sub do_reload_perl() {
3578 # can/must only be called in main 3624 # can/must only be called in main
3579 if ($Coro::current != $Coro::main) { 3625 if ($Coro::current != $Coro::main) {
3580 warn "can only reload from main coroutine"; 3626 warn "can only reload from main coroutine";
3581 return; 3627 return;
3582 } 3628 }
3583 3629
3584 return if $RELOAD++; 3630 return if $RELOAD++;
3631
3632 my $t1 = EV::time;
3585 3633
3586 while ($RELOAD) { 3634 while ($RELOAD) {
3587 warn "reloading..."; 3635 warn "reloading...";
3588 3636
3589 warn "entering sync_job"; 3637 warn "entering sync_job";
… …
3668 cf::reload_config; 3716 cf::reload_config;
3669 3717
3670 warn "loading extensions"; 3718 warn "loading extensions";
3671 cf::load_extensions; 3719 cf::load_extensions;
3672 3720
3721 if ($REATTACH_ON_RELOAD) {
3673 warn "reattaching attachments to objects/players"; 3722 warn "reattaching attachments to objects/players";
3674 _global_reattach; # objects, sockets 3723 _global_reattach; # objects, sockets
3675 warn "reattaching attachments to maps"; 3724 warn "reattaching attachments to maps";
3676 reattach $_ for values %MAP; 3725 reattach $_ for values %MAP;
3677 warn "reattaching attachments to players"; 3726 warn "reattaching attachments to players";
3678 reattach $_ for values %PLAYER; 3727 reattach $_ for values %PLAYER;
3728 }
3729
3730 warn "running post_init jobs";
3731 (pop @POST_INIT)->(1) while @POST_INIT;
3679 3732
3680 warn "leaving sync_job"; 3733 warn "leaving sync_job";
3681 3734
3682 1 3735 1
3683 } or do { 3736 } or do {
… …
3686 }; 3739 };
3687 3740
3688 warn "reloaded"; 3741 warn "reloaded";
3689 --$RELOAD; 3742 --$RELOAD;
3690 } 3743 }
3744
3745 $t1 = EV::time - $t1;
3746 warn "reload completed in ${t1}s\n";
3691}; 3747};
3692 3748
3693our $RELOAD_WATCHER; # used only during reload 3749our $RELOAD_WATCHER; # used only during reload
3694 3750
3695sub reload_perl() { 3751sub reload_perl() {
3696 # doing reload synchronously and two reloads happen back-to-back, 3752 # doing reload synchronously and two reloads happen back-to-back,
3697 # coro crashes during coro_state_free->destroy here. 3753 # coro crashes during coro_state_free->destroy here.
3698 3754
3755 $RELOAD_WATCHER ||= cf::async {
3756 Coro::AIO::aio_wait cache_extensions;
3757
3699 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3758 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3700 do_reload_perl; 3759 do_reload_perl;
3701 undef $RELOAD_WATCHER; 3760 undef $RELOAD_WATCHER;
3761 };
3702 }; 3762 };
3703} 3763}
3704 3764
3705register_command "reload" => sub { 3765register_command "reload" => sub {
3706 my ($who, $arg) = @_; 3766 my ($who, $arg) = @_;
… …
3832 $msg =~ s/\n//; 3892 $msg =~ s/\n//;
3833 3893
3834 # limit the # of concurrent backtraces 3894 # limit the # of concurrent backtraces
3835 if ($_log_backtrace < 2) { 3895 if ($_log_backtrace < 2) {
3836 ++$_log_backtrace; 3896 ++$_log_backtrace;
3897 my $perl_bt = Carp::longmess $msg;
3837 async { 3898 async {
3838 $Coro::current->{desc} = "abt $msg"; 3899 $Coro::current->{desc} = "abt $msg";
3839 3900
3840 my @bt = fork_call { 3901 my @bt = fork_call {
3841 @addr = map { sprintf "%x", $_ } @addr; 3902 @addr = map { sprintf "%x", $_ } @addr;
… …
3852 } 3913 }
3853 3914
3854 @funcs 3915 @funcs
3855 }; 3916 };
3856 3917
3857 LOG llevInfo, "[ABT] $msg\n"; 3918 LOG llevInfo, "[ABT] $perl_bt\n";
3919 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3858 LOG llevInfo, "[ABT] $_\n" for @bt; 3920 LOG llevInfo, "[ABT] $_\n" for @bt;
3859 --$_log_backtrace; 3921 --$_log_backtrace;
3860 }; 3922 };
3861 } else { 3923 } else {
3862 LOG llevInfo, "[ABT] $msg\n"; 3924 LOG llevInfo, "[ABT] $msg\n";

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