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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.444 by root, Mon Sep 8 11:27:25 2008 UTC vs.
Revision 1.468 by root, Thu Jan 8 19:23:44 2009 UTC

21 21
22package cf; 22package cf;
23 23
24use 5.10.0; 24use 5.10.0;
25use utf8; 25use utf8;
26use strict "vars", "subs"; 26use strict qw(vars subs);
27 27
28use Symbol; 28use Symbol;
29use List::Util; 29use List::Util;
30use Socket; 30use Socket;
31use EV; 31use EV;
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";
89our $PODDIR = "$DATADIR/pod"; 94our $PODDIR = "$DATADIR/pod";
90our $MAPDIR = "$DATADIR/" . mapdir; 95our $MAPDIR = "$DATADIR/" . mapdir;
91our $LOCALDIR = localdir; 96our $LOCALDIR = localdir;
92our $TMPDIR = "$LOCALDIR/" . tmpdir; 97our $TMPDIR = "$LOCALDIR/" . tmpdir;
93our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 98our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
94our $PLAYERDIR = "$LOCALDIR/" . playerdir; 99our $PLAYERDIR = "$LOCALDIR/" . playerdir;
95our $RANDOMDIR = "$LOCALDIR/random"; 100our $RANDOMDIR = "$LOCALDIR/random";
96our $BDBDIR = "$LOCALDIR/db"; 101our $BDBDIR = "$LOCALDIR/db";
102our $PIDFILE = "$LOCALDIR/pid";
103our $RUNTIMEFILE = "$LOCALDIR/runtime";
104
97our %RESOURCE; 105our %RESOURCE;
98 106
99our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 107our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
100our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 108our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
101our $NEXT_TICK; 109our $NEXT_TICK;
104our $BDB_DEADLOCK_WATCHER; 112our $BDB_DEADLOCK_WATCHER;
105our $BDB_CHECKPOINT_WATCHER; 113our $BDB_CHECKPOINT_WATCHER;
106our $BDB_TRICKLE_WATCHER; 114our $BDB_TRICKLE_WATCHER;
107our $DB_ENV; 115our $DB_ENV;
108 116
117our @EXTRA_MODULES = qw(pod mapscript);
118
109our %CFG; 119our %CFG;
110 120
111our $UPTIME; $UPTIME ||= time; 121our $UPTIME; $UPTIME ||= time;
112our $RUNTIME; 122our $RUNTIME;
113our $NOW; 123our $NOW;
122our $LOAD; # a number between 0 (idle) and 1 (too many objects) 132our $LOAD; # a number between 0 (idle) and 1 (too many objects)
123our $LOADAVG; # same thing, but with alpha-smoothing 133our $LOADAVG; # same thing, but with alpha-smoothing
124our $JITTER; # average jitter 134our $JITTER; # average jitter
125our $TICK_START; # for load detecting purposes 135our $TICK_START; # for load detecting purposes
126 136
137our @POST_INIT;
138
139our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
140
127binmode STDOUT; 141binmode STDOUT;
128binmode STDERR; 142binmode STDERR;
129 143
130# read virtual server time, if available 144# read virtual server time, if available
131unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 145unless ($RUNTIME || !-e $RUNTIMEFILE) {
132 open my $fh, "<", "$LOCALDIR/runtime" 146 open my $fh, "<", $RUNTIMEFILE
133 or die "unable to read runtime file: $!"; 147 or die "unable to read $RUNTIMEFILE file: $!";
134 $RUNTIME = <$fh> + 0.; 148 $RUNTIME = <$fh> + 0.;
135} 149}
150
151eval "sub TICK() { $TICK } 1" or die;
136 152
137mkdir $_ 153mkdir $_
138 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; 154 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
139 155
140our $EMERGENCY_POSITION; 156our $EMERGENCY_POSITION;
299our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 315our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
300 316
301sub encode_json($) { $json_coder->encode ($_[0]) } 317sub encode_json($) { $json_coder->encode ($_[0]) }
302sub decode_json($) { $json_coder->decode ($_[0]) } 318sub decode_json($) { $json_coder->decode ($_[0]) }
303 319
320=item cf::post_init { BLOCK }
321
322Execute the given codeblock, I<after> all extensions have been (re-)loaded,
323but I<before> the server starts ticking again.
324
325The cdoeblock will have a single boolean argument to indicate whether this
326is a reload or not.
327
328=cut
329
330sub post_init(&) {
331 push @POST_INIT, shift;
332}
333
304=item cf::lock_wait $string 334=item cf::lock_wait $string
305 335
306Wait until the given lock is available. See cf::lock_acquire. 336Wait until the given lock is available. See cf::lock_acquire.
307 337
308=item my $lock = cf::lock_acquire $string 338=item my $lock = cf::lock_acquire $string
309 339
310Wait until the given lock is available and then acquires it and returns 340Wait until the given lock is available and then acquires it and returns
311a Coro::guard object. If the guard object gets destroyed (goes out of scope, 341a L<Guard> object. If the guard object gets destroyed (goes out of scope,
312for example when the coroutine gets canceled), the lock is automatically 342for example when the coroutine gets canceled), the lock is automatically
313returned. 343returned.
314 344
315Locks are *not* recursive, locking from the same coro twice results in a 345Locks are *not* recursive, locking from the same coro twice results in a
316deadlocked coro. 346deadlocked coro.
322 352
323Return true if the lock is currently active, i.e. somebody has locked it. 353Return true if the lock is currently active, i.e. somebody has locked it.
324 354
325=cut 355=cut
326 356
327our %LOCK; 357our $LOCKS = new Coro::SemaphoreSet;
328our %LOCKER;#d#
329 358
330sub lock_wait($) { 359sub lock_wait($) {
331 my ($key) = @_; 360 $LOCKS->wait ($_[0]);
332
333 if ($LOCKER{$key} == $Coro::current) {#d#
334 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
335 return;#d#
336 }#d#
337
338 # wait for lock, if any
339 while ($LOCK{$key}) {
340 push @{ $LOCK{$key} }, $Coro::current;
341 Coro::schedule;
342 }
343} 361}
344 362
345sub lock_acquire($) { 363sub lock_acquire($) {
346 my ($key) = @_; 364 $LOCKS->guard ($_[0])
347
348 # wait, to be sure we are not locked
349 lock_wait $key;
350
351 $LOCK{$key} = [];
352 $LOCKER{$key} = $Coro::current;#d#
353
354 Coro::guard {
355 delete $LOCKER{$key};#d#
356 # wake up all waiters, to be on the safe side
357 $_->ready for @{ delete $LOCK{$key} };
358 }
359} 365}
360 366
361sub lock_active($) { 367sub lock_active($) {
362 my ($key) = @_; 368 $LOCKS->count ($_[0]) < 1
363
364 ! ! $LOCK{$key}
365} 369}
366 370
367sub freeze_mainloop { 371sub freeze_mainloop {
368 tick_inhibit_inc; 372 tick_inhibit_inc;
369 373
370 Coro::guard \&tick_inhibit_dec; 374 &Guard::guard (\&tick_inhibit_dec);
371} 375}
372 376
373=item cf::periodic $interval, $cb 377=item cf::periodic $interval, $cb
374 378
375Like EV::periodic, but randomly selects a starting point so that the actions 379Like EV::periodic, but randomly selects a starting point so that the actions
727 731
728############################################################################# 732#############################################################################
729 733
730=head2 ATTACHABLE OBJECTS 734=head2 ATTACHABLE OBJECTS
731 735
732Many objects in crossfire are so-called attachable objects. That means you can 736Many objects in deliantra are so-called attachable objects. That means you can
733attach callbacks/event handlers (a collection of which is called an "attachment") 737attach callbacks/event handlers (a collection of which is called an "attachment")
734to it. All such attachable objects support the following methods. 738to it. All such attachable objects support the following methods.
735 739
736In the following description, CLASS can be any of C<global>, C<object> 740In the following description, CLASS can be any of C<global>, C<object>
737C<player>, C<client> or C<map> (i.e. the attachable objects in 741C<player>, C<client> or C<map> (i.e. the attachable objects in
787=item cf::CLASS::attachment $name, ... 791=item cf::CLASS::attachment $name, ...
788 792
789Register an attachment by C<$name> through which attachable objects of the 793Register an attachment by C<$name> through which attachable objects of the
790given CLASS can refer to this attachment. 794given CLASS can refer to this attachment.
791 795
792Some classes such as crossfire maps and objects can specify attachments 796Some classes such as deliantra maps and objects can specify attachments
793that are attached at load/instantiate time, thus the need for a name. 797that are attached at load/instantiate time, thus the need for a name.
794 798
795These calls expect any number of the following handler/hook descriptions: 799These calls expect any number of the following handler/hook descriptions:
796 800
797=over 4 801=over 4
1164 } else { 1168 } else {
1165 aio_unlink "$filename.pst"; 1169 aio_unlink "$filename.pst";
1166 } 1170 }
1167 1171
1168 aio_rename "$filename~", $filename; 1172 aio_rename "$filename~", $filename;
1173
1174 $filename =~ s%/[^/]+$%%;
1175 aio_pathsync $filename if $cf::USE_FSYNC;
1169 } else { 1176 } else {
1170 warn "FATAL: $filename~: $!\n"; 1177 warn "unable to save objects: $filename~: $!\n";
1171 } 1178 }
1172 } else { 1179 } else {
1173 aio_unlink $filename; 1180 aio_unlink $filename;
1174 aio_unlink "$filename.pst"; 1181 aio_unlink "$filename.pst";
1175 } 1182 }
1266 my ($name, $cb) = @_; 1273 my ($name, $cb) = @_;
1267 1274
1268 $EXTICMD{$name} = $cb; 1275 $EXTICMD{$name} = $cb;
1269} 1276}
1270 1277
1278use File::Glob ();
1279
1271cf::player->attach ( 1280cf::player->attach (
1272 on_command => sub { 1281 on_command => sub {
1273 my ($pl, $name, $params) = @_; 1282 my ($pl, $name, $params) = @_;
1274 1283
1275 my $cb = $COMMAND{$name} 1284 my $cb = $COMMAND{$name}
1306 } 1315 }
1307 1316
1308 cf::override; 1317 cf::override;
1309 }, 1318 },
1310); 1319);
1320
1321# "readahead" all extensions
1322sub cache_extensions {
1323 my $grp = IO::AIO::aio_group;
1324
1325 add $grp IO::AIO::aio_readdir $LIBDIR, sub {
1326 for (grep /\.ext$/, @{$_[0]}) {
1327 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1328 }
1329 };
1330
1331 $grp
1332}
1311 1333
1312sub load_extensions { 1334sub load_extensions {
1313 cf::sync_job { 1335 cf::sync_job {
1314 my %todo; 1336 my %todo;
1315 1337
1385 1407
1386=back 1408=back
1387 1409
1388=head2 CORE EXTENSIONS 1410=head2 CORE EXTENSIONS
1389 1411
1390Functions and methods that extend core crossfire objects. 1412Functions and methods that extend core deliantra objects.
1391 1413
1392=cut 1414=cut
1393 1415
1394package cf::player; 1416package cf::player;
1395 1417
1438 1460
1439sub exists($) { 1461sub exists($) {
1440 my ($login) = @_; 1462 my ($login) = @_;
1441 1463
1442 $cf::PLAYER{$login} 1464 $cf::PLAYER{$login}
1443 or cf::sync_job { !aio_stat path $login } 1465 or !aio_stat path $login
1444} 1466}
1445 1467
1446sub find($) { 1468sub find($) {
1447 return $cf::PLAYER{$_[0]} || do { 1469 return $cf::PLAYER{$_[0]} || do {
1448 my $login = $_[0]; 1470 my $login = $_[0];
1619 } 1641 }
1620 1642
1621 \@paths 1643 \@paths
1622} 1644}
1623 1645
1624=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1646=item $protocol_xml = $player->expand_cfpod ($cfpod)
1625 1647
1626Expand crossfire pod fragments into protocol xml. 1648Expand deliantra pod fragments into protocol xml.
1627 1649
1628=item $player->ext_reply ($msgid, @msg) 1650=item $player->ext_reply ($msgid, @msg)
1629 1651
1630Sends an ext reply to the player. 1652Sends an ext reply to the player.
1631 1653
1844 1866
1845 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go; 1867 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1846 "$UNIQUEDIR/$path" 1868 "$UNIQUEDIR/$path"
1847} 1869}
1848 1870
1849# and all this just because we cannot iterate over
1850# all maps in C++...
1851sub change_all_map_light {
1852 my ($change) = @_;
1853
1854 $_->change_map_light ($change)
1855 for grep $_->outdoor, values %cf::MAP;
1856}
1857
1858sub decay_objects { 1871sub decay_objects {
1859 my ($self) = @_; 1872 my ($self) = @_;
1860 1873
1861 return if $self->{deny_reset}; 1874 return if $self->{deny_reset};
1862 1875
1944sub find { 1957sub find {
1945 my ($path, $origin) = @_; 1958 my ($path, $origin) = @_;
1946 1959
1947 $path = normalise $path, $origin && $origin->path; 1960 $path = normalise $path, $origin && $origin->path;
1948 1961
1949 cf::lock_wait "map_data:$path";#d#remove 1962 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1950 cf::lock_wait "map_find:$path"; 1963 my $guard2 = cf::lock_acquire "map_find:$path";
1951 1964
1952 $cf::MAP{$path} || do { 1965 $cf::MAP{$path} || do {
1953 my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1954 my $guard2 = cf::lock_acquire "map_find:$path";
1955
1956 my $map = new_from_path cf::map $path 1966 my $map = new_from_path cf::map $path
1957 or return; 1967 or return;
1958 1968
1959 $map->{last_save} = $cf::RUNTIME; 1969 $map->{last_save} = $cf::RUNTIME;
1960 1970
2027 2037
2028 unless ($self->{deny_activate}) { 2038 unless ($self->{deny_activate}) {
2029 $self->decay_objects; 2039 $self->decay_objects;
2030 $self->fix_auto_apply; 2040 $self->fix_auto_apply;
2031 $self->update_buttons; 2041 $self->update_buttons;
2032 cf::cede_to_tick;
2033 $self->set_darkness_map;
2034 cf::cede_to_tick; 2042 cf::cede_to_tick;
2035 $self->activate; 2043 $self->activate;
2036 } 2044 }
2037 2045
2038 $self->{last_save} = $cf::RUNTIME; 2046 $self->{last_save} = $cf::RUNTIME;
2380 2388
2381our $SAY_CHANNEL = { 2389our $SAY_CHANNEL = {
2382 id => "say", 2390 id => "say",
2383 title => "Map", 2391 title => "Map",
2384 reply => "say ", 2392 reply => "say ",
2385 tooltip => "Things said to and replied from npcs near you and other players on the same map only.", 2393 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2386}; 2394};
2387 2395
2388our $CHAT_CHANNEL = { 2396our $CHAT_CHANNEL = {
2389 id => "chat", 2397 id => "chat",
2390 title => "Chat", 2398 title => "Chat",
2445 2453
2446=item $player_object->enter_link 2454=item $player_object->enter_link
2447 2455
2448Freezes the player and moves him/her to a special map (C<{link}>). 2456Freezes the player and moves him/her to a special map (C<{link}>).
2449 2457
2450The player should be reasonably safe there for short amounts of time. You 2458The player should be reasonably safe there for short amounts of time (e.g.
2451I<MUST> call C<leave_link> as soon as possible, though. 2459for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2460though, as the palyer cannot control the character while it is on the link
2461map.
2452 2462
2453Will never block. 2463Will never block.
2454 2464
2455=item $player_object->leave_link ($map, $x, $y) 2465=item $player_object->leave_link ($map, $x, $y)
2456 2466
2514 2524
2515 $map->load; 2525 $map->load;
2516 $map->load_neighbours; 2526 $map->load_neighbours;
2517 2527
2518 return unless $self->contr->active; 2528 return unless $self->contr->active;
2529 $self->flag (cf::FLAG_DEBUG, 0);#d# temp
2519 $self->activate_recursive; 2530 $self->activate_recursive;
2520 2531
2521 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2532 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2522 $self->enter_map ($map, $x, $y); 2533 $self->enter_map ($map, $x, $y);
2523} 2534}
2686 $self->contr->savebed ($map, $x, $y) 2697 $self->contr->savebed ($map, $x, $y)
2687 if $exit->flag (cf::FLAG_DAMNED); 2698 if $exit->flag (cf::FLAG_DAMNED);
2688 2699
2689 1 2700 1
2690 }) { 2701 }) {
2691 $self->message ("Something went wrong deep within the crossfire server. " 2702 $self->message ("Something went wrong deep within the deliantra server. "
2692 . "I'll try to bring you back to the map you were before. " 2703 . "I'll try to bring you back to the map you were before. "
2693 . "Please report this to the dungeon master!", 2704 . "Please report this to the dungeon master!",
2694 cf::NDI_UNIQUE | cf::NDI_RED); 2705 cf::NDI_UNIQUE | cf::NDI_RED);
2695 2706
2696 warn "ERROR in enter_exit: $@"; 2707 warn "ERROR in enter_exit: $@";
2762 id => "infobox", 2773 id => "infobox",
2763 title => "Body Parts", 2774 title => "Body Parts",
2764 reply => undef, 2775 reply => undef,
2765 tooltip => "Shows which body parts you posess and are available", 2776 tooltip => "Shows which body parts you posess and are available",
2766 }, 2777 },
2778 "c/statistics" => {
2779 id => "infobox",
2780 title => "Statistics",
2781 reply => undef,
2782 tooltip => "Shows your primary statistics",
2783 },
2784 "c/skills" => {
2785 id => "infobox",
2786 title => "Skills",
2787 reply => undef,
2788 tooltip => "Shows your experience per skill and item power",
2789 },
2790 "c/resistances" => {
2791 id => "infobox",
2792 title => "Resistances",
2793 reply => undef,
2794 tooltip => "Shows your resistances",
2795 },
2796 "c/pets" => {
2797 id => "infobox",
2798 title => "Pets",
2799 reply => undef,
2800 tooltip => "Shows information abotu your pets/a specific pet",
2801 },
2767 "c/uptime" => { 2802 "c/uptime" => {
2768 id => "infobox", 2803 id => "infobox",
2769 title => "Uptime", 2804 title => "Uptime",
2770 reply => undef, 2805 reply => undef,
2771 tooltip => "How long the server has been running since last restart", 2806 tooltip => "How long the server has been running since last restart",
2780 id => "party", 2815 id => "party",
2781 title => "Party", 2816 title => "Party",
2782 reply => "gsay ", 2817 reply => "gsay ",
2783 tooltip => "Messages and chat related to your party", 2818 tooltip => "Messages and chat related to your party",
2784 }, 2819 },
2820 "c/death" => {
2821 id => "death",
2822 title => "Death",
2823 reply => undef,
2824 tooltip => "Reason for and more info about your most recent death",
2825 },
2826 "c/say" => $SAY_CHANNEL,
2827 "c/chat" => $CHAT_CHANNEL,
2785); 2828);
2786 2829
2787sub cf::client::send_msg { 2830sub cf::client::send_msg {
2788 my ($self, $channel, $msg, $color, @extra) = @_; 2831 my ($self, $channel, $msg, $color, @extra) = @_;
2789 2832
2790 $msg = $self->pl->expand_cfpod ($msg); 2833 $msg = $self->pl->expand_cfpod ($msg)
2834 unless $color & cf::NDI_VERBATIM;
2791 2835
2792 $color &= cf::NDI_CLIENT_MASK; # just in case... 2836 $color &= cf::NDI_CLIENT_MASK; # just in case...
2793 2837
2794 # check predefined channels, for the benefit of C 2838 # check predefined channels, for the benefit of C
2795 if ($CHANNEL{$channel}) { 2839 if ($CHANNEL{$channel}) {
2796 $channel = $CHANNEL{$channel}; 2840 $channel = $CHANNEL{$channel};
2797 2841
2798 $self->ext_msg (channel_info => $channel) 2842 $self->ext_msg (channel_info => $channel);
2799 if $self->can_msg;
2800
2801 $channel = $channel->{id}; 2843 $channel = $channel->{id};
2802 2844
2803 } elsif (ref $channel) { 2845 } elsif (ref $channel) {
2804 # send meta info to client, if not yet sent 2846 # send meta info to client, if not yet sent
2805 unless (exists $self->{channel}{$channel->{id}}) { 2847 unless (exists $self->{channel}{$channel->{id}}) {
2806 $self->{channel}{$channel->{id}} = $channel; 2848 $self->{channel}{$channel->{id}} = $channel;
2807 $self->ext_msg (channel_info => $channel) 2849 $self->ext_msg (channel_info => $channel);
2808 if $self->can_msg;
2809 } 2850 }
2810 2851
2811 $channel = $channel->{id}; 2852 $channel = $channel->{id};
2812 } 2853 }
2813 2854
2814 return unless @extra || length $msg; 2855 return unless @extra || length $msg;
2815 2856
2816 if ($self->can_msg) {
2817 # default colour, mask it out 2857 # default colour, mask it out
2818 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF) 2858 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2819 if $color & cf::NDI_DEF; 2859 if $color & cf::NDI_DEF;
2820 2860
2821 my $pkt = "msg " 2861 my $pkt = "msg "
2822 . $self->{json_coder}->encode ( 2862 . $self->{json_coder}->encode (
2823 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra] 2863 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
2824 ); 2864 );
2825 2865
2826 # try lzf for large packets 2866 # try lzf for large packets
2827 $pkt = "lzf " . Compress::LZF::compress $pkt 2867 $pkt = "lzf " . Compress::LZF::compress $pkt
2828 if 1024 <= length $pkt and $self->{can_lzf}; 2868 if 1024 <= length $pkt and $self->{can_lzf};
2829 2869
2830 # split very large packets 2870 # split very large packets
2831 if (8192 < length $pkt and $self->{can_lzf}) { 2871 if (8192 < length $pkt and $self->{can_lzf}) {
2832 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt; 2872 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
2833 $pkt = "frag"; 2873 $pkt = "frag";
2834 } 2874 }
2835 2875
2836 $self->send_packet ($pkt); 2876 $self->send_packet ($pkt);
2837 } else {
2838 if ($color >= 0) {
2839 # replace some tags by gcfclient-compatible ones
2840 for ($msg) {
2841 1 while
2842 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2843 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2844 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2845 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2846 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2847 }
2848
2849 $color &= cf::NDI_COLOR_MASK;
2850
2851 utf8::encode $msg;
2852
2853 if (0 && $msg =~ /\[/) {
2854 # COMMAND/INFO
2855 $self->send_packet ("drawextinfo $color 10 8 $msg")
2856 } else {
2857 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2858 $self->send_packet ("drawinfo $color $msg")
2859 }
2860 }
2861 }
2862} 2877}
2863 2878
2864=item $client->ext_msg ($type, @msg) 2879=item $client->ext_msg ($type, @msg)
2865 2880
2866Sends an ext event to the client. 2881Sends an ext event to the client.
3041The following functions and methods are available within a safe environment: 3056The following functions and methods are available within a safe environment:
3042 3057
3043 cf::object 3058 cf::object
3044 contr pay_amount pay_player map x y force_find force_add destroy 3059 contr pay_amount pay_player map x y force_find force_add destroy
3045 insert remove name archname title slaying race decrease split 3060 insert remove name archname title slaying race decrease split
3061 value
3046 3062
3047 cf::object::player 3063 cf::object::player
3048 player 3064 player
3049 3065
3050 cf::player 3066 cf::player
3056=cut 3072=cut
3057 3073
3058for ( 3074for (
3059 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y 3075 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3060 insert remove inv nrof name archname title slaying race 3076 insert remove inv nrof name archname title slaying race
3061 decrease split destroy change_exp)], 3077 decrease split destroy change_exp value msg lore send_msg)],
3062 ["cf::object::player" => qw(player)], 3078 ["cf::object::player" => qw(player)],
3063 ["cf::player" => qw(peaceful)], 3079 ["cf::player" => qw(peaceful send_msg)],
3064 ["cf::map" => qw(trigger)], 3080 ["cf::map" => qw(trigger)],
3065) { 3081) {
3066 no strict 'refs'; 3082 no strict 'refs';
3067 my ($pkg, @funs) = @$_; 3083 my ($pkg, @funs) = @$_;
3068 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3084 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
3085 my ($code, %vars) = @_; 3101 my ($code, %vars) = @_;
3086 3102
3087 my $qcode = $code; 3103 my $qcode = $code;
3088 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3104 $qcode =~ s/"/‟/g; # not allowed in #line filenames
3089 $qcode =~ s/\n/\\n/g; 3105 $qcode =~ s/\n/\\n/g;
3106
3107 %vars = (_dummy => 0) unless %vars;
3090 3108
3091 local $_; 3109 local $_;
3092 local @safe::cf::_safe_eval_args = values %vars; 3110 local @safe::cf::_safe_eval_args = values %vars;
3093 3111
3094 my $eval = 3112 my $eval =
3324 reload_treasures; 3342 reload_treasures;
3325 3343
3326 warn "finished reloading resource files\n"; 3344 warn "finished reloading resource files\n";
3327} 3345}
3328 3346
3329sub init {
3330 my $guard = freeze_mainloop;
3331
3332 evthread_start IO::AIO::poll_fileno;
3333
3334 reload_resources;
3335}
3336
3337sub reload_config { 3347sub reload_config {
3338 open my $fh, "<:utf8", "$CONFDIR/config" 3348 open my $fh, "<:utf8", "$CONFDIR/config"
3339 or return; 3349 or return;
3340 3350
3341 local $/; 3351 local $/;
3353 }; 3363 };
3354 warn $@ if $@; 3364 warn $@ if $@;
3355 } 3365 }
3356} 3366}
3357 3367
3368sub pidfile() {
3369 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3370 or die "$PIDFILE: $!";
3371 flock $fh, &Fcntl::LOCK_EX
3372 or die "$PIDFILE: flock: $!";
3373 $fh
3374}
3375
3376# make sure only one server instance is running at any one time
3377sub atomic {
3378 my $fh = pidfile;
3379
3380 my $pid = <$fh>;
3381 kill 9, $pid if $pid > 0;
3382
3383 seek $fh, 0, 0;
3384 print $fh $$;
3385}
3386
3358sub main { 3387sub main {
3388 cf::init_globals; # initialise logging
3389
3390 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3391 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3392 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3393 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3394
3395 cf::init_experience;
3396 cf::init_anim;
3397 cf::init_attackmess;
3398 cf::init_dynamic;
3399
3400 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3401
3359 # we must not ever block the main coroutine 3402 # we must not ever block the main coroutine
3360 local $Coro::idle = sub { 3403 local $Coro::idle = sub {
3361 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3404 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3362 (async { 3405 (async {
3363 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3406 $Coro::current->{desc} = "IDLE BUG HANDLER";
3364 EV::loop EV::LOOP_ONESHOT; 3407 EV::loop EV::LOOP_ONESHOT;
3365 })->prio (Coro::PRIO_MAX); 3408 })->prio (Coro::PRIO_MAX);
3366 }; 3409 };
3367 3410
3368 { 3411 evthread_start IO::AIO::poll_fileno;
3369 my $guard = freeze_mainloop; 3412
3413 cf::sync_job {
3414 reload_resources;
3370 reload_config; 3415 reload_config;
3371 db_init; 3416 db_init;
3417
3418 cf::load_settings;
3419 cf::load_materials;
3420 cf::init_uuid;
3421 cf::init_signals;
3422 cf::init_commands;
3423 cf::init_skills;
3424
3425 cf::init_beforeplay;
3426
3427 atomic;
3428
3372 load_extensions; 3429 load_extensions;
3373 3430
3374 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3431 utime time, time, $RUNTIMEFILE;
3432
3433 # no (long-running) fork's whatsoever before this point(!)
3434 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3435
3436 (pop @POST_INIT)->(0) while @POST_INIT;
3375 } 3437 };
3376 3438
3377 EV::loop; 3439 EV::loop;
3378} 3440}
3379 3441
3380############################################################################# 3442#############################################################################
3389 }; 3451 };
3390 } 3452 }
3391} 3453}
3392 3454
3393sub write_runtime_sync { 3455sub write_runtime_sync {
3394 my $runtime = "$LOCALDIR/runtime";
3395
3396 # first touch the runtime file to show we are still running: 3456 # first touch the runtime file to show we are still running:
3397 # the fsync below can take a very very long time. 3457 # the fsync below can take a very very long time.
3398 3458
3399 IO::AIO::aio_utime $runtime, undef, undef; 3459 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3400 3460
3401 my $guard = cf::lock_acquire "write_runtime"; 3461 my $guard = cf::lock_acquire "write_runtime";
3402 3462
3403 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 3463 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
3404 or return; 3464 or return;
3405 3465
3406 my $value = $cf::RUNTIME + 90 + 10; 3466 my $value = $cf::RUNTIME + 90 + 10;
3407 # 10 is the runtime save interval, for a monotonic clock 3467 # 10 is the runtime save interval, for a monotonic clock
3408 # 60 allows for the watchdog to kill the server. 3468 # 60 allows for the watchdog to kill the server.
3418 aio_utime $fh, undef, undef; 3478 aio_utime $fh, undef, undef;
3419 3479
3420 close $fh 3480 close $fh
3421 or return; 3481 or return;
3422 3482
3423 aio_rename "$runtime~", $runtime 3483 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3424 and return; 3484 and return;
3425 3485
3426 warn "runtime file written.\n"; 3486 warn "runtime file written.\n";
3427 3487
3428 1 3488 1
3440 my $uuid = "$LOCALDIR/uuid"; 3500 my $uuid = "$LOCALDIR/uuid";
3441 3501
3442 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3502 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3443 or return; 3503 or return;
3444 3504
3445 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3505 my $value = uuid_seq uuid_cur;
3506
3507 unless ($value) {
3508 warn "cowardly refusing to write zero uuid value!\n";
3509 return;
3510 }
3511
3512 my $value = uuid_str $value + $uuid_skip;
3446 $uuid_skip = 0; 3513 $uuid_skip = 0;
3447 3514
3448 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3515 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3449 and return; 3516 and return;
3450 3517
3472} 3539}
3473 3540
3474sub emergency_save() { 3541sub emergency_save() {
3475 my $freeze_guard = cf::freeze_mainloop; 3542 my $freeze_guard = cf::freeze_mainloop;
3476 3543
3477 warn "enter emergency perl save\n"; 3544 warn "emergency_perl_save: enter\n";
3478 3545
3479 cf::sync_job { 3546 cf::sync_job {
3547 # this is a trade-off: we want to be very quick here, so
3548 # save all maps without fsync, and later call a global sync
3549 # (which in turn might be very very slow)
3550 local $USE_FSYNC = 0;
3551
3480 # use a peculiar iteration method to avoid tripping on perl 3552 # use a peculiar iteration method to avoid tripping on perl
3481 # refcount bugs in for. also avoids problems with players 3553 # refcount bugs in for. also avoids problems with players
3482 # and maps saved/destroyed asynchronously. 3554 # and maps saved/destroyed asynchronously.
3483 warn "begin emergency player save\n"; 3555 warn "emergency_perl_save: begin player save\n";
3484 for my $login (keys %cf::PLAYER) { 3556 for my $login (keys %cf::PLAYER) {
3485 my $pl = $cf::PLAYER{$login} or next; 3557 my $pl = $cf::PLAYER{$login} or next;
3486 $pl->valid or next; 3558 $pl->valid or next;
3487 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt 3559 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3488 $pl->save; 3560 $pl->save;
3489 } 3561 }
3490 warn "end emergency player save\n"; 3562 warn "emergency_perl_save: end player save\n";
3491 3563
3492 warn "begin emergency map save\n"; 3564 warn "emergency_perl_save: begin map save\n";
3493 for my $path (keys %cf::MAP) { 3565 for my $path (keys %cf::MAP) {
3494 my $map = $cf::MAP{$path} or next; 3566 my $map = $cf::MAP{$path} or next;
3495 $map->valid or next; 3567 $map->valid or next;
3496 $map->save; 3568 $map->save;
3497 } 3569 }
3498 warn "end emergency map save\n"; 3570 warn "emergency_perl_save: end map save\n";
3499 3571
3500 warn "begin emergency database checkpoint\n"; 3572 warn "emergency_perl_save: begin database checkpoint\n";
3501 BDB::db_env_txn_checkpoint $DB_ENV; 3573 BDB::db_env_txn_checkpoint $DB_ENV;
3502 warn "end emergency database checkpoint\n"; 3574 warn "emergency_perl_save: end database checkpoint\n";
3503 3575
3504 warn "begin write uuid\n"; 3576 warn "emergency_perl_save: begin write uuid\n";
3505 write_uuid_sync 1; 3577 write_uuid_sync 1;
3506 warn "end write uuid\n"; 3578 warn "emergency_perl_save: end write uuid\n";
3507 }; 3579 };
3508 3580
3581 warn "emergency_perl_save: starting sync()\n";
3582 IO::AIO::aio_sync sub {
3583 warn "emergency_perl_save: finished sync()\n";
3584 };
3585
3509 warn "leave emergency perl save\n"; 3586 warn "emergency_perl_save: leave\n";
3510} 3587}
3511 3588
3512sub post_cleanup { 3589sub post_cleanup {
3513 my ($make_core) = @_; 3590 my ($make_core) = @_;
3514 3591
3515 warn Carp::longmess "post_cleanup backtrace" 3592 warn Carp::longmess "post_cleanup backtrace"
3516 if $make_core; 3593 if $make_core;
3594
3595 my $fh = pidfile;
3596 unlink $PIDFILE if <$fh> == $$;
3517} 3597}
3518 3598
3519# a safer delete_package, copied from Symbol 3599# a safer delete_package, copied from Symbol
3520sub clear_package($) { 3600sub clear_package($) {
3521 my $pkg = shift; 3601 my $pkg = shift;
3537 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH}; 3617 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3538 for my $name (keys %$leaf_symtab) { 3618 for my $name (keys %$leaf_symtab) {
3539 _gv_clear *{"$pkg$name"}; 3619 _gv_clear *{"$pkg$name"};
3540# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"}; 3620# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3541 } 3621 }
3542 warn "cleared package #$pkg\n";#d# 3622 warn "cleared package $pkg\n";#d#
3543} 3623}
3544
3545our $RELOAD; # how many times to reload
3546 3624
3547sub do_reload_perl() { 3625sub do_reload_perl() {
3548 # can/must only be called in main 3626 # can/must only be called in main
3549 if ($Coro::current != $Coro::main) { 3627 if ($Coro::current != $Coro::main) {
3550 warn "can only reload from main coroutine"; 3628 warn "can only reload from main coroutine";
3551 return; 3629 return;
3552 } 3630 }
3553 3631
3554 return if $RELOAD++; 3632 return if $RELOAD++;
3633
3634 my $t1 = EV::time;
3555 3635
3556 while ($RELOAD) { 3636 while ($RELOAD) {
3557 warn "reloading..."; 3637 warn "reloading...";
3558 3638
3559 warn "entering sync_job"; 3639 warn "entering sync_job";
3620 clear_package "safe::$_" 3700 clear_package "safe::$_"
3621 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3701 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3622 3702
3623 warn "unloading cf.pm \"a bit\""; 3703 warn "unloading cf.pm \"a bit\"";
3624 delete $INC{"cf.pm"}; 3704 delete $INC{"cf.pm"};
3625 delete $INC{"cf/pod.pm"}; 3705 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3626 3706
3627 # don't, removes xs symbols, too, 3707 # don't, removes xs symbols, too,
3628 # and global variables created in xs 3708 # and global variables created in xs
3629 #clear_package __PACKAGE__; 3709 #clear_package __PACKAGE__;
3630 3710
3638 cf::reload_config; 3718 cf::reload_config;
3639 3719
3640 warn "loading extensions"; 3720 warn "loading extensions";
3641 cf::load_extensions; 3721 cf::load_extensions;
3642 3722
3723 if ($REATTACH_ON_RELOAD) {
3643 warn "reattaching attachments to objects/players"; 3724 warn "reattaching attachments to objects/players";
3644 _global_reattach; # objects, sockets 3725 _global_reattach; # objects, sockets
3645 warn "reattaching attachments to maps"; 3726 warn "reattaching attachments to maps";
3646 reattach $_ for values %MAP; 3727 reattach $_ for values %MAP;
3647 warn "reattaching attachments to players"; 3728 warn "reattaching attachments to players";
3648 reattach $_ for values %PLAYER; 3729 reattach $_ for values %PLAYER;
3730 }
3731
3732 warn "running post_init jobs";
3733 (pop @POST_INIT)->(1) while @POST_INIT;
3649 3734
3650 warn "leaving sync_job"; 3735 warn "leaving sync_job";
3651 3736
3652 1 3737 1
3653 } or do { 3738 } or do {
3656 }; 3741 };
3657 3742
3658 warn "reloaded"; 3743 warn "reloaded";
3659 --$RELOAD; 3744 --$RELOAD;
3660 } 3745 }
3746
3747 $t1 = EV::time - $t1;
3748 warn "reload completed in ${t1}s\n";
3661}; 3749};
3662 3750
3663our $RELOAD_WATCHER; # used only during reload 3751our $RELOAD_WATCHER; # used only during reload
3664 3752
3665sub reload_perl() { 3753sub reload_perl() {
3666 # doing reload synchronously and two reloads happen back-to-back, 3754 # doing reload synchronously and two reloads happen back-to-back,
3667 # coro crashes during coro_state_free->destroy here. 3755 # coro crashes during coro_state_free->destroy here.
3668 3756
3757 $RELOAD_WATCHER ||= cf::async {
3758 Coro::AIO::aio_wait cache_extensions;
3759
3669 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3760 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3670 do_reload_perl; 3761 do_reload_perl;
3671 undef $RELOAD_WATCHER; 3762 undef $RELOAD_WATCHER;
3763 };
3672 }; 3764 };
3673} 3765}
3674 3766
3675register_command "reload" => sub { 3767register_command "reload" => sub {
3676 my ($who, $arg) = @_; 3768 my ($who, $arg) = @_;
3802 $msg =~ s/\n//; 3894 $msg =~ s/\n//;
3803 3895
3804 # limit the # of concurrent backtraces 3896 # limit the # of concurrent backtraces
3805 if ($_log_backtrace < 2) { 3897 if ($_log_backtrace < 2) {
3806 ++$_log_backtrace; 3898 ++$_log_backtrace;
3899 my $perl_bt = Carp::longmess $msg;
3807 async { 3900 async {
3808 $Coro::current->{desc} = "abt $msg"; 3901 $Coro::current->{desc} = "abt $msg";
3809 3902
3810 my @bt = fork_call { 3903 my @bt = fork_call {
3811 @addr = map { sprintf "%x", $_ } @addr; 3904 @addr = map { sprintf "%x", $_ } @addr;
3822 } 3915 }
3823 3916
3824 @funcs 3917 @funcs
3825 }; 3918 };
3826 3919
3827 LOG llevInfo, "[ABT] $msg\n"; 3920 LOG llevInfo, "[ABT] $perl_bt\n";
3921 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3828 LOG llevInfo, "[ABT] $_\n" for @bt; 3922 LOG llevInfo, "[ABT] $_\n" for @bt;
3829 --$_log_backtrace; 3923 --$_log_backtrace;
3830 }; 3924 };
3831 } else { 3925 } else {
3832 LOG llevInfo, "[ABT] $msg\n"; 3926 LOG llevInfo, "[ABT] $msg\n";
3833 LOG llevInfo, "[ABT] [suppressed]\n"; 3927 LOG llevInfo, "[ABT] [suppressed]\n";
3834 } 3928 }
3835} 3929}
3836 3930
3837# load additional modules 3931# load additional modules
3838use cf::pod; 3932require "cf/$_.pm" for @EXTRA_MODULES;
3839 3933
3840END { cf::emergency_save } 3934END { cf::emergency_save }
3841 3935
38421 39361
3843 3937

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