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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.210 by root, Mon Feb 12 01:32:49 2007 UTC vs.
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC

3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Socket;
8use Storable; 9use Storable;
10use Event;
9use Opcode; 11use Opcode;
10use Safe; 12use Safe;
11use Safe::Hole; 13use Safe::Hole;
12 14
13use Coro 3.5 (); 15use Coro 3.61 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::Event;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable;
19 24
20use BDB (); 25use BDB ();
21use Data::Dumper; 26use Data::Dumper;
22use Digest::MD5; 27use Digest::MD5;
23use Fcntl; 28use Fcntl;
29use YAML::Syck ();
24use IO::AIO 2.32 (); 30use IO::AIO 2.32 ();
25use YAML::Syck ();
26use Time::HiRes; 31use Time::HiRes;
27use Compress::LZF; 32use Compress::LZF;
28 33
34# configure various modules to our taste
35#
36$Storable::canonical = 1; # reduce rsync transfers
37Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 38Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30 39
31use Event; $Event::Eval = 1; # no idea why this is required, but it is 40$Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 41
35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 42# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36$YAML::Syck::ImplicitUnicode = 1; 43$YAML::Syck::ImplicitUnicode = 1;
37 44
38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 45$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46
47sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
39 48
40our %COMMAND = (); 49our %COMMAND = ();
41our %COMMAND_TIME = (); 50our %COMMAND_TIME = ();
42 51
43our @EXTS = (); # list of extension package names 52our @EXTS = (); # list of extension package names
44our %EXTCMD = (); 53our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions 54our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps 55our %EXT_MAP = (); # pluggable maps
47 56
57our $RELOAD; # number of reloads so far
48our @EVENT; 58our @EVENT;
49our $LIBDIR = datadir . "/ext"; 59our $LIBDIR = datadir . "/ext";
50 60
51our $TICK = MAX_TIME * 1e-6; 61our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52our $TICK_WATCHER; 62our $TICK_WATCHER;
53our $AIO_POLL_WATCHER; 63our $AIO_POLL_WATCHER;
54our $WRITE_RUNTIME_WATCHER; 64our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55our $NEXT_TICK; 65our $NEXT_TICK;
56our $NOW; 66our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off 67our $USE_FSYNC = 1; # use fsync to write maps - default off
58 68
59our $BDB_POLL_WATCHER; 69our $BDB_POLL_WATCHER;
67our %PLAYER; # all users 77our %PLAYER; # all users
68our %MAP; # all maps 78our %MAP; # all maps
69our $LINK_MAP; # the special {link} map, which is always available 79our $LINK_MAP; # the special {link} map, which is always available
70our $RANDOM_MAPS = cf::localdir . "/random"; 80our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db"; 81our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75 82
76# used to convert map paths into valid unix filenames by replacing / by ∕ 83# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 84our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78 85
79binmode STDOUT; 86binmode STDOUT;
128=item %cf::CFG 135=item %cf::CFG
129 136
130Configuration for the server, loaded from C</etc/crossfire/config>, or 137Configuration for the server, loaded from C</etc/crossfire/config>, or
131from wherever your confdir points to. 138from wherever your confdir points to.
132 139
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 140=item cf::wait_for_tick, cf::wait_for_tick_begin
134 141
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 142These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 143returns directly I<after> the tick processing (and consequently, can only wake one process
137processing has been done. Call C<< ->wait >> on them to maximise the 144per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138window of cpu time available, or simply to synchronise to the server tick.
139 145
140=back 146=back
141 147
142=cut 148=cut
143 149
144BEGIN { 150BEGIN {
145 *CORE::GLOBAL::warn = sub { 151 *CORE::GLOBAL::warn = sub {
146 my $msg = join "", @_; 152 my $msg = join "", @_;
147 utf8::encode $msg;
148 153
149 $msg .= "\n" 154 $msg .= "\n"
150 unless $msg =~ /\n$/; 155 unless $msg =~ /\n$/;
151 156
157 $msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158
159 utf8::encode $msg;
152 LOG llevError, $msg; 160 LOG llevError, $msg;
153 }; 161 };
154} 162}
155 163
156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 164@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 210 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d 211 $d
204 } || "[unable to dump $_[0]: '$@']"; 212 } || "[unable to dump $_[0]: '$@']";
205} 213}
206 214
207use JSON::Syck (); # TODO# replace by JSON::PC once working 215use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
208 216
209=item $ref = cf::from_json $json 217=item $ref = cf::from_json $json
210 218
211Converts a JSON string into the corresponding perl data structure. 219Converts a JSON string into the corresponding perl data structure.
212 220
213=cut
214
215sub from_json($) {
216 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217 JSON::Syck::Load $_[0]
218}
219
220=item $json = cf::to_json $ref 221=item $json = cf::to_json $ref
221 222
222Converts a perl data structure into its JSON representation. 223Converts a perl data structure into its JSON representation.
223
224=cut
225
226sub to_json($) {
227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
228 JSON::Syck::Dump $_[0]
229}
230 224
231=item cf::lock_wait $string 225=item cf::lock_wait $string
232 226
233Wait until the given lock is available. See cf::lock_acquire. 227Wait until the given lock is available. See cf::lock_acquire.
234 228
273sub freeze_mainloop { 267sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active; 268 return unless $TICK_WATCHER->is_active;
275 269
276 my $guard = Coro::guard { 270 my $guard = Coro::guard {
277 $TICK_WATCHER->start; 271 $TICK_WATCHER->start;
278 $WRITE_RUNTIME_WATCHER->start;
279 }; 272 };
280 $WRITE_RUNTIME_WATCHER->stop;
281 $TICK_WATCHER->stop; 273 $TICK_WATCHER->stop;
282 $guard 274 $guard
283} 275}
284 276
285=item cf::async { BLOCK } 277=item cf::async { BLOCK }
356 348
357 $coro 349 $coro
358} 350}
359 351
360sub write_runtime { 352sub write_runtime {
353 my $guard = cf::lock_acquire "write_runtime";
354
361 my $runtime = cf::localdir . "/runtime"; 355 my $runtime = cf::localdir . "/runtime";
362 356
363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 357 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
364 or return; 358 or return;
365 359
379 373
380 aio_rename "$runtime~", $runtime 374 aio_rename "$runtime~", $runtime
381 and return; 375 and return;
382 376
383 1 377 1
378}
379
380=item cf::datalog type => key => value, ...
381
382Log a datalog packet of the given type with the given key-value pairs.
383
384=cut
385
386sub datalog($@) {
387 my ($type, %kv) = @_;
388 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384} 389}
385 390
386=back 391=back
387 392
388=cut 393=cut
787 } 792 }
788 } else { 793 } else {
789 aio_unlink $filename; 794 aio_unlink $filename;
790 aio_unlink "$filename.pst"; 795 aio_unlink "$filename.pst";
791 } 796 }
792
793 #d##TODO# nuke non .map-files if exist
794 if ($filename =~ s/\.map$//) {
795 aio_unlink $filename;
796 aio_unlink "$filename.pst";
797 }
798 } 797 }
799} 798}
800 799
801sub object_freezer_as_string { 800sub object_freezer_as_string {
802 my ($rdata, $objs) = @_; 801 my ($rdata, $objs) = @_;
808 807
809sub object_thawer_load { 808sub object_thawer_load {
810 my ($filename) = @_; 809 my ($filename) = @_;
811 810
812 my ($data, $av); 811 my ($data, $av);
813
814 #d#TODO remove .map if file does not exist
815 aio_stat $filename and $filename =~ s/\.map$//;
816 812
817 (aio_load $filename, $data) >= 0 813 (aio_load $filename, $data) >= 0
818 or return; 814 or return;
819 815
820 unless (aio_stat "$filename.pst") { 816 unless (aio_stat "$filename.pst") {
969} 965}
970 966
971sub path($) { 967sub path($) {
972 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 968 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973 969
974 (playerdir $login) . "/$login.pl" 970 (playerdir $login) . "/playerdata"
975} 971}
976 972
977sub find_active($) { 973sub find_active($) {
978 $cf::PLAYER{$_[0]} 974 $cf::PLAYER{$_[0]}
979 and $cf::PLAYER{$_[0]}->active 975 and $cf::PLAYER{$_[0]}->active
992 my $login = $_[0]; 988 my $login = $_[0];
993 989
994 my $guard = cf::lock_acquire "user_find:$login"; 990 my $guard = cf::lock_acquire "user_find:$login";
995 991
996 $cf::PLAYER{$_[0]} || do { 992 $cf::PLAYER{$_[0]} || do {
993 # rename old playerfiles to new ones
994 #TODO: remove when no longer required
995 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997 aio_unlink +(playerdir $login) . "/$login.pl.pst";
998 aio_unlink +(playerdir $login) . "/$login.pl";
999
997 my $pl = load_pl path $login 1000 my $pl = load_pl path $login
998 or return; 1001 or return;
999 $cf::PLAYER{$login} = $pl 1002 $cf::PLAYER{$login} = $pl
1000 } 1003 }
1001 } 1004 }
1038 1041
1039=cut 1042=cut
1040 1043
1041sub quit_character { 1044sub quit_character {
1042 my ($pl) = @_; 1045 my ($pl) = @_;
1046
1047 my $name = $pl->ob->name;
1043 1048
1044 $pl->{deny_save} = 1; 1049 $pl->{deny_save} = 1;
1045 $pl->password ("*"); # this should lock out the player until we nuked the dir 1050 $pl->password ("*"); # this should lock out the player until we nuked the dir
1046 1051
1047 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1052 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1052 my $path = playerdir $pl; 1057 my $path = playerdir $pl;
1053 my $temp = "$path~$cf::RUNTIME~deleting~"; 1058 my $temp = "$path~$cf::RUNTIME~deleting~";
1054 aio_rename $path, $temp; 1059 aio_rename $path, $temp;
1055 delete $cf::PLAYER{$pl->ob->name}; 1060 delete $cf::PLAYER{$pl->ob->name};
1056 $pl->destroy; 1061 $pl->destroy;
1062
1063 my $prefix = qr<^~\Q$name\E/>;
1064
1065 # nuke player maps
1066 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1067
1057 IO::AIO::aio_rmtree $temp; 1068 IO::AIO::aio_rmtree $temp;
1069}
1070
1071=item $pl->kick
1072
1073Kicks a player out of the game. This destroys the connection.
1074
1075=cut
1076
1077sub kick {
1078 my ($pl, $kicker) = @_;
1079
1080 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1081 $pl->killer ("kicked");
1082 $pl->ns->destroy;
1058} 1083}
1059 1084
1060=item cf::player::list_logins 1085=item cf::player::list_logins
1061 1086
1062Returns am arrayref of all valid playernames in the system, can take a 1087Returns am arrayref of all valid playernames in the system, can take a
1108 } 1133 }
1109 1134
1110 \@paths 1135 \@paths
1111} 1136}
1112 1137
1113=item $player->ext_reply ($msgid, $msgtype, %msg) 1138=item $player->ext_reply ($msgid, %msg)
1114 1139
1115Sends an ext reply to the player. 1140Sends an ext reply to the player.
1116 1141
1117=cut 1142=cut
1118 1143
1119sub ext_reply($$$%) { 1144sub ext_reply($$%) {
1120 my ($self, $id, %msg) = @_; 1145 my ($self, $id, %msg) = @_;
1121 1146
1122 $msg{msgid} = $id; 1147 $msg{msgid} = $id;
1123 1148
1124 $self->send ("ext " . cf::to_json \%msg); 1149 $self->send ("ext " . cf::to_json \%msg);
1125} 1150}
1126 1151
1127package cf; 1152=item $player->ext_event ($type, %msg)
1153
1154Sends an ext event to the client.
1155
1156=cut
1157
1158sub ext_event($$%) {
1159 my ($self, $type, %msg) = @_;
1160
1161 $self->ns->ext_event ($type, %msg);
1162}
1163
1164=head3 cf::region
1165
1166=over 4
1167
1168=cut
1169
1170package cf::region;
1171
1172=item cf::region::find_by_path $path
1173
1174Tries to decuce the probable region for a map knowing only its path.
1175
1176=cut
1177
1178sub find_by_path($) {
1179 my ($path) = @_;
1180
1181 my ($match, $specificity);
1182
1183 for my $region (list) {
1184 if ($region->match && $path =~ $region->match) {
1185 ($match, $specificity) = ($region, $region->specificity)
1186 if $region->specificity > $specificity;
1187 }
1188 }
1189
1190 $match
1191}
1128 1192
1129=back 1193=back
1130
1131 1194
1132=head3 cf::map 1195=head3 cf::map
1133 1196
1134=over 4 1197=over 4
1135 1198
1307 my ($self) = @_; 1370 my ($self) = @_;
1308 1371
1309 utf8::encode (my $save = $self->save_path); 1372 utf8::encode (my $save = $self->save_path);
1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1373 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1374 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313 #d#TODO remove .map and also nuke
1314 $save =~ s/\.map// or return;#d#
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317} 1375}
1318 1376
1319sub load_header_from($) { 1377sub load_header_from($) {
1320 my ($self, $path) = @_; 1378 my ($self, $path) = @_;
1321 1379
1371 $self->load_header_orig 1429 $self->load_header_orig
1372 or return; 1430 or return;
1373 $self->prepare_orig; 1431 $self->prepare_orig;
1374 } 1432 }
1375 1433
1434 $self->default_region (cf::region::find_by_path $self->{path})
1435 unless $self->default_region;
1436
1376 1 1437 1
1377} 1438}
1378 1439
1379sub find; 1440sub find;
1380sub find { 1441sub find {
1422 $self->in_memory (cf::MAP_LOADING); 1483 $self->in_memory (cf::MAP_LOADING);
1423 1484
1424 $self->alloc; 1485 $self->alloc;
1425 1486
1426 $self->pre_load; 1487 $self->pre_load;
1488 Coro::cede;
1427 1489
1428 $self->_load_objects ($self->{load_path}, 1) 1490 $self->_load_objects ($self->{load_path}, 1)
1429 or return; 1491 or return;
1430 1492
1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1493 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1438 $self->_load_objects ($uniq, 0); 1500 $self->_load_objects ($uniq, 0);
1439 } 1501 }
1440 } 1502 }
1441 1503
1442 Coro::cede; 1504 Coro::cede;
1443
1444 # now do the right thing for maps 1505 # now do the right thing for maps
1445 $self->link_multipart_objects; 1506 $self->link_multipart_objects;
1507 Coro::cede;
1446 1508
1447 unless ($self->{deny_activate}) { 1509 unless ($self->{deny_activate}) {
1448 $self->decay_objects; 1510 $self->decay_objects;
1449 $self->fix_auto_apply; 1511 $self->fix_auto_apply;
1450 $self->update_buttons; 1512 $self->update_buttons;
1452 $self->set_darkness_map; 1514 $self->set_darkness_map;
1453 $self->difficulty ($self->estimate_difficulty) 1515 $self->difficulty ($self->estimate_difficulty)
1454 unless $self->difficulty; 1516 unless $self->difficulty;
1455 Coro::cede; 1517 Coro::cede;
1456 $self->activate; 1518 $self->activate;
1519 Coro::cede;
1457 } 1520 }
1458 1521
1459 $self->post_load; 1522 $self->post_load;
1523 Coro::cede;
1460 1524
1461 $self->in_memory (cf::MAP_IN_MEMORY); 1525 $self->in_memory (cf::MAP_IN_MEMORY);
1462} 1526}
1463 1527
1464sub customise_for { 1528sub customise_for {
1820 $map->load; 1884 $map->load;
1821 $map->load_diag; 1885 $map->load_diag;
1822 1886
1823 return unless $self->contr->active; 1887 return unless $self->contr->active;
1824 $self->activate_recursive; 1888 $self->activate_recursive;
1889
1890 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1825 $self->enter_map ($map, $x, $y); 1891 $self->enter_map ($map, $x, $y);
1826} 1892}
1827 1893
1828cf::player->attach ( 1894cf::player->attach (
1829 on_logout => sub { 1895 on_logout => sub {
1842 # try to abort aborted map switching on player login :) 1908 # try to abort aborted map switching on player login :)
1843 # should happen only on crashes 1909 # should happen only on crashes
1844 if ($pl->ob->{_link_pos}) { 1910 if ($pl->ob->{_link_pos}) {
1845 $pl->ob->enter_link; 1911 $pl->ob->enter_link;
1846 (async { 1912 (async {
1847 # we need this sleep as the login has a concurrent enter_exit running
1848 # and this sleep increases chances of the player not ending up in scorn
1849 $pl->ob->reply (undef, 1913 $pl->ob->reply (undef,
1850 "There was an internal problem at your last logout, " 1914 "There was an internal problem at your last logout, "
1851 . "the server will try to bring you to your intended destination in a second.", 1915 . "the server will try to bring you to your intended destination in a second.",
1852 cf::NDI_RED); 1916 cf::NDI_RED);
1917 # we need this sleep as the login has a concurrent enter_exit running
1918 # and this sleep increases chances of the player not ending up in scorn
1853 Coro::Timer::sleep 1; 1919 Coro::Timer::sleep 1;
1854 $pl->ob->leave_link; 1920 $pl->ob->leave_link;
1855 })->prio (2); 1921 })->prio (2);
1856 } 1922 }
1857 }, 1923 },
1940 2006
1941 return unless $self->type == cf::PLAYER; 2007 return unless $self->type == cf::PLAYER;
1942 2008
1943 if ($exit->slaying eq "/!") { 2009 if ($exit->slaying eq "/!") {
1944 #TODO: this should de-fi-ni-te-ly not be a sync-job 2010 #TODO: this should de-fi-ni-te-ly not be a sync-job
2011 # the problem is that $exit might not survive long enough
2012 # so it needs to be done right now, right here
1945 cf::sync_job { prepare_random_map $exit }; 2013 cf::sync_job { prepare_random_map $exit };
1946 } 2014 }
1947 2015
1948 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; 2016 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949 my $hp = $exit->stats->hp; 2017 my $hp = $exit->stats->hp;
1957 $self->goto ($slaying, $hp, $sp); 2025 $self->goto ($slaying, $hp, $sp);
1958 2026
1959 1; 2027 1;
1960 }) { 2028 }) {
1961 $self->message ("Something went wrong deep within the crossfire server. " 2029 $self->message ("Something went wrong deep within the crossfire server. "
1962 . "I'll try to bring you back to the map you were before. " 2030 . "I'll try to bring you back to the map you were before. "
1963 . "Please report this to the dungeon master!", 2031 . "Please report this to the dungeon master!",
1964 cf::NDI_UNIQUE | cf::NDI_RED); 2032 cf::NDI_UNIQUE | cf::NDI_RED);
1965 2033
1966 warn "ERROR in enter_exit: $@"; 2034 warn "ERROR in enter_exit: $@";
1967 $self->leave_link; 2035 $self->leave_link;
1968 } 2036 }
1969 })->prio (1); 2037 })->prio (1);
1982 2050
1983sub cf::client::send_drawinfo { 2051sub cf::client::send_drawinfo {
1984 my ($self, $text, $flags) = @_; 2052 my ($self, $text, $flags) = @_;
1985 2053
1986 utf8::encode $text; 2054 utf8::encode $text;
1987 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2055 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1988} 2056}
1989 2057
2058=item $client->ext_event ($type, %msg)
2059
2060Sends an exti event to the client.
2061
2062=cut
2063
2064sub cf::client::ext_event($$%) {
2065 my ($self, $type, %msg) = @_;
2066
2067 $msg{msgtype} = "event_$type";
2068 $self->send_packet ("ext " . cf::to_json \%msg);
2069}
1990 2070
1991=item $success = $client->query ($flags, "text", \&cb) 2071=item $success = $client->query ($flags, "text", \&cb)
1992 2072
1993Queues a query to the client, calling the given callback with 2073Queues a query to the client, calling the given callback with
1994the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2074the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2091 2171
2092# here we export the classes and methods available to script code 2172# here we export the classes and methods available to script code
2093 2173
2094=pod 2174=pod
2095 2175
2096The following fucntions and emthods are available within a safe environment: 2176The following functions and methods are available within a safe environment:
2097 2177
2098 cf::object contr pay_amount pay_player map 2178 cf::object contr pay_amount pay_player map
2099 cf::object::player player 2179 cf::object::player player
2100 cf::player peaceful 2180 cf::player peaceful
2101 cf::map trigger 2181 cf::map trigger
2186############################################################################# 2266#############################################################################
2187 2267
2188=head2 EXTENSION DATABASE SUPPORT 2268=head2 EXTENSION DATABASE SUPPORT
2189 2269
2190Crossfire maintains a very simple database for extension use. It can 2270Crossfire maintains a very simple database for extension use. It can
2191currently store anything that can be serialised using Storable, which 2271currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2192excludes objects. 2272convert to/from binary).
2193 2273
2194The parameter C<$family> should best start with the name of the extension 2274The parameter C<$family> should best start with the name of the extension
2195using it, it should be unique. 2275using it, it should be unique.
2196 2276
2197=over 4 2277=over 4
2220 BDB::CREATE | BDB::AUTO_COMMIT, 0666; 2300 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221 cf::cleanup "db_open(db): $!" if $!; 2301 cf::cleanup "db_open(db): $!" if $!;
2222 }; 2302 };
2223 cf::cleanup "db_open(db): $@" if $@; 2303 cf::cleanup "db_open(db): $@" if $@;
2224 }; 2304 };
2225
2226 my $path = cf::localdir . "/database.pst";
2227 if (stat $path) {
2228 cf::sync_job {
2229 my $pst = Storable::retrieve $path;
2230
2231 cf::db_put (board => data => $pst->{board});
2232 cf::db_put (guildrules => data => $pst->{guildrules});
2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
2235
2236 unlink $path;
2237 };
2238 }
2239 } 2305 }
2240} 2306}
2241 2307
2242sub db_get($$) { 2308sub db_get($$) {
2243 my $key = "$_[0]/$_[1]"; 2309 my $key = "$_[0]/$_[1]";
2244 2310
2245 cf::sync_job { 2311 cf::sync_job {
2246 BDB::db_get $DB, undef, $key, my $data; 2312 BDB::db_get $DB, undef, $key, my $data;
2247 2313
2248 $! ? () 2314 $! ? ()
2249 : Compress::LZF::sthaw $data 2315 : $data
2250 } 2316 }
2251} 2317}
2252 2318
2253sub db_put($$$) { 2319sub db_put($$$) {
2254 BDB::dbreq_pri 4; 2320 BDB::dbreq_pri 4;
2255 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { }; 2321 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2256} 2322}
2323
2324=item cf::cache $id => [$paths...], $processversion => $process
2325
2326Generic caching function that returns the value of the resource $id,
2327caching and regenerating as required.
2328
2329This function can block.
2330
2331=cut
2332
2333sub cache {
2334 my ($id, $src, $processversion, $process) = @_;
2335
2336 my $meta =
2337 join "\x00",
2338 $processversion,
2339 map {
2340 aio_stat $_
2341 and Carp::croak "$_: $!";
2342
2343 ($_, (stat _)[7,9])
2344 } @$src;
2345
2346 my $dbmeta = db_get cache => "$id/meta";
2347 if ($dbmeta ne $meta) {
2348 # changed, we may need to process
2349
2350 my @data;
2351 my $md5;
2352
2353 for (0 .. $#$src) {
2354 0 <= aio_load $src->[$_], $data[$_]
2355 or Carp::croak "$src->[$_]: $!";
2356 }
2357
2358 # if processing is expensive, check
2359 # checksum first
2360 if (1) {
2361 $md5 =
2362 join "\x00",
2363 $processversion,
2364 map {
2365 Coro::cede;
2366 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2367 } 0.. $#$src;
2368
2369
2370 my $dbmd5 = db_get cache => "$id/md5";
2371 if ($dbmd5 eq $md5) {
2372 db_put cache => "$id/meta", $meta;
2373
2374 return db_get cache => "$id/data";
2375 }
2376 }
2377
2378 my $data = $process->(\@data);
2379
2380 db_put cache => "$id/data", $data;
2381 db_put cache => "$id/md5" , $md5;
2382 db_put cache => "$id/meta", $meta;
2383
2384 return $data;
2385 }
2386
2387 db_get cache => "$id/data"
2388}
2389
2390=item fork_call { }, $args
2391
2392Executes the given code block with the given arguments in a seperate
2393process, returning the results. Everything must be serialisable with
2394Coro::Storable. May, of course, block. Note that the executed sub may
2395never block itself or use any form of Event handling.
2396
2397=cut
2398
2399sub fork_call(&@) {
2400 my ($cb, @args) = @_;
2401
2402# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403# or die "socketpair: $!";
2404 pipe my $fh1, my $fh2
2405 or die "pipe: $!";
2406
2407 if (my $pid = fork) {
2408 close $fh2;
2409
2410 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411 $res = Coro::Storable::thaw $res;
2412
2413 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415 die $$res unless "ARRAY" eq ref $res;
2416
2417 return wantarray ? @$res : $res->[-1];
2418 } else {
2419 local $SIG{__WARN__};
2420 eval {
2421 local $SIG{__DIE__};
2422 close $fh1;
2423
2424 my @res = eval { $cb->(@args) };
2425 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426 };
2427
2428 warn $@ if $@;
2429 _exit 0;
2430 }
2431}
2432
2433
2257 2434
2258############################################################################# 2435#############################################################################
2259# the server's init and main functions 2436# the server's init and main functions
2260 2437
2261sub load_resources { 2438sub load_facedata($) {
2439 my ($path) = @_;
2440
2441 warn "loading facedata from $path\n";
2442
2443 my $facedata;
2444 0 < aio_load $path, $facedata
2445 or die "$path: $!";
2446
2447 $facedata = Coro::Storable::thaw $facedata;
2448
2449 $facedata->{version} == 2
2450 or cf::cleanup "$path: version mismatch, cannot proceed.";
2451
2452 {
2453 my $faces = $facedata->{faceinfo};
2454
2455 while (my ($face, $info) = each %$faces) {
2456 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2457 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2458 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2459 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2460 Coro::cede;
2461 }
2462
2463 while (my ($face, $info) = each %$faces) {
2464 next unless $info->{smooth};
2465 my $idx = cf::face::find $face
2466 or next;
2467 if (my $smooth = cf::face::find $info->{smooth}) {
2468 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2469 } else {
2470 warn "smooth face '$info->{smooth}' not found for face '$face'";
2471 }
2472 Coro::cede;
2473 }
2474 }
2475
2476 {
2477 my $anims = $facedata->{animinfo};
2478
2479 while (my ($anim, $info) = each %$anims) {
2480 cf::anim::set $anim, $info->{frames}, $info->{facings};
2481 Coro::cede;
2482 }
2483
2484 cf::anim::invalidate_all; # d'oh
2485 }
2486
2487 1
2488}
2489
2490sub reload_facedata {
2491 load_facedata sprintf "%s/facedata", cf::datadir
2492 or die "unable to load facedata\n";
2493}
2494
2495sub reload_regions {
2262 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir 2496 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2263 or die "unable to load regions file\n";#d# 2497 or die "unable to load regions file\n";
2498}
2499
2500sub reload_archetypes {
2501 load_resource_file sprintf "%s/archetypes", cf::datadir
2502 or die "unable to load archetypes\n";
2503}
2504
2505sub reload_treasures {
2506 load_resource_file sprintf "%s/treasures", cf::datadir
2507 or die "unable to load treasurelists\n";
2508}
2509
2510sub reload_resources {
2511 warn "reloading resource files...\n";
2512
2513 reload_regions;
2514 reload_facedata;
2515 reload_archetypes;
2516 reload_treasures;
2517
2518 warn "finished reloading resource files\n";
2519}
2520
2521sub init {
2522 reload_resources;
2264} 2523}
2265 2524
2266sub cfg_load { 2525sub cfg_load {
2267 open my $fh, "<:utf8", cf::confdir . "/config" 2526 open my $fh, "<:utf8", cf::confdir . "/config"
2268 or return; 2527 or return;
2280 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2539 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2281 and die "WARNING: m(un)lockall failed: $!\n"; 2540 and die "WARNING: m(un)lockall failed: $!\n";
2282 }; 2541 };
2283 warn $@ if $@; 2542 warn $@ if $@;
2284 } 2543 }
2285}
2286
2287sub init {
2288 load_resources;
2289} 2544}
2290 2545
2291sub main { 2546sub main {
2292 # we must not ever block the main coroutine 2547 # we must not ever block the main coroutine
2293 local $Coro::idle = sub { 2548 local $Coro::idle = sub {
2354 }; 2609 };
2355 2610
2356 warn "leave emergency perl save\n"; 2611 warn "leave emergency perl save\n";
2357} 2612}
2358 2613
2614sub post_cleanup {
2615 my ($make_core) = @_;
2616
2617 warn Carp::longmess "post_cleanup backtrace"
2618 if $make_core;
2619}
2620
2359sub reload() { 2621sub do_reload_perl() {
2360 # can/must only be called in main 2622 # can/must only be called in main
2361 if ($Coro::current != $Coro::main) { 2623 if ($Coro::current != $Coro::main) {
2362 warn "can only reload from main coroutine"; 2624 warn "can only reload from main coroutine";
2363 return; 2625 return;
2364 } 2626 }
2365 2627
2366 warn "reloading..."; 2628 warn "reloading...";
2367 2629
2368 warn "cancelling server ticker"; 2630 warn "entering sync_job";
2369 $TICK_WATCHER->cancel;
2370 2631
2632 cf::sync_job {
2633 cf::write_runtime; # external watchdog should not bark
2371 cf::emergency_save; 2634 cf::emergency_save;
2635 cf::write_runtime; # external watchdog should not bark
2372 2636
2373 eval { 2637 warn "syncing database to disk";
2638 BDB::db_env_txn_checkpoint $DB_ENV;
2639
2374 # if anything goes wrong in here, we should simply crash as we already saved 2640 # if anything goes wrong in here, we should simply crash as we already saved
2375 2641
2376 warn "cancelling all WF_AUTOCANCEL watchers"; 2642 warn "cancelling all WF_AUTOCANCEL watchers";
2377 for (Event::all_watchers) { 2643 for (Event::all_watchers) {
2378 $_->cancel if $_->data & WF_AUTOCANCEL; 2644 $_->cancel if $_->data & WF_AUTOCANCEL;
2379 } 2645 }
2380
2381 warn "syncing database to disk";
2382 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2383 2646
2384 warn "flushing outstanding aio requests"; 2647 warn "flushing outstanding aio requests";
2385 for (;;) { 2648 for (;;) {
2386 BDB::flush; 2649 BDB::flush;
2387 IO::AIO::flush; 2650 IO::AIO::flush;
2388 Coro::cede; 2651 Coro::cede;
2389 last unless IO::AIO::nreqs || BDB::nreqs; 2652 last unless IO::AIO::nreqs || BDB::nreqs;
2390 warn "iterate..."; 2653 warn "iterate...";
2391 } 2654 }
2392 2655
2656 ++$RELOAD;
2657
2393 warn "cancelling all extension coros"; 2658 warn "cancelling all extension coros";
2394 $_->cancel for values %EXT_CORO; 2659 $_->cancel for values %EXT_CORO;
2395 %EXT_CORO = (); 2660 %EXT_CORO = ();
2396 2661
2397 warn "removing commands"; 2662 warn "removing commands";
2454 2719
2455 warn "loading extensions"; 2720 warn "loading extensions";
2456 cf::load_extensions; 2721 cf::load_extensions;
2457 2722
2458 warn "reattaching attachments to objects/players"; 2723 warn "reattaching attachments to objects/players";
2459 _global_reattach; 2724 _global_reattach; # objects, sockets
2460 warn "reattaching attachments to maps"; 2725 warn "reattaching attachments to maps";
2461 reattach $_ for values %MAP; 2726 reattach $_ for values %MAP;
2727 warn "reattaching attachments to players";
2728 reattach $_ for values %PLAYER;
2462 2729
2463 warn "loading reloadable resources"; 2730 warn "leaving sync_job";
2464 load_resources;
2465 2731
2466 warn "restarting server ticker"; 2732 1
2467 2733 } or do {
2468 $TICK_WATCHER->start;
2469 };
2470
2471 if ($@) {
2472 warn $@; 2734 warn $@;
2473 warn "error while reloading, exiting."; 2735 warn "error while reloading, exiting.";
2474 exit 1; 2736 exit 1;
2475 } 2737 };
2476 2738
2477 warn "reloaded"; 2739 warn "reloaded";
2478}; 2740};
2479 2741
2480our $RELOAD_WATCHER; # used only during reload 2742our $RELOAD_WATCHER; # used only during reload
2481 2743
2744sub reload_perl() {
2745 # doing reload synchronously and two reloads happen back-to-back,
2746 # coro crashes during coro_state_free->destroy here.
2747
2748 $RELOAD_WATCHER ||= Event->timer (
2749 reentrant => 0,
2750 after => 0,
2751 data => WF_AUTOCANCEL,
2752 cb => sub {
2753 do_reload_perl;
2754 undef $RELOAD_WATCHER;
2755 },
2756 );
2757}
2758
2482register_command "reload" => sub { 2759register_command "reload" => sub {
2483 my ($who, $arg) = @_; 2760 my ($who, $arg) = @_;
2484 2761
2485 if ($who->flag (FLAG_WIZ)) { 2762 if ($who->flag (FLAG_WIZ)) {
2486 $who->message ("reloading server."); 2763 $who->message ("reloading server.");
2487 2764 async { reload_perl };
2488 # doing reload synchronously and two reloads happen back-to-back,
2489 # coro crashes during coro_state_free->destroy here.
2490
2491 $RELOAD_WATCHER ||= Event->timer (
2492 reentrant => 0,
2493 after => 0,
2494 data => WF_AUTOCANCEL,
2495 cb => sub {
2496 reload;
2497 undef $RELOAD_WATCHER;
2498 },
2499 );
2500 } 2765 }
2501}; 2766};
2502 2767
2503unshift @INC, $LIBDIR; 2768unshift @INC, $LIBDIR;
2504 2769
2505my $bug_warning = 0; 2770my $bug_warning = 0;
2771
2772our @WAIT_FOR_TICK;
2773our @WAIT_FOR_TICK_BEGIN;
2774
2775sub wait_for_tick {
2776 return unless $TICK_WATCHER->is_active;
2777 return if $Coro::current == $Coro::main;
2778
2779 my $signal = new Coro::Signal;
2780 push @WAIT_FOR_TICK, $signal;
2781 $signal->wait;
2782}
2783
2784sub wait_for_tick_begin {
2785 return unless $TICK_WATCHER->is_active;
2786 return if $Coro::current == $Coro::main;
2787
2788 my $signal = new Coro::Signal;
2789 push @WAIT_FOR_TICK_BEGIN, $signal;
2790 $signal->wait;
2791}
2506 2792
2507$TICK_WATCHER = Event->timer ( 2793$TICK_WATCHER = Event->timer (
2508 reentrant => 0, 2794 reentrant => 0,
2509 parked => 1, 2795 parked => 1,
2510 prio => 0, 2796 prio => 0,
2518 } 2804 }
2519 2805
2520 $NOW = Event::time; 2806 $NOW = Event::time;
2521 2807
2522 cf::server_tick; # one server iteration 2808 cf::server_tick; # one server iteration
2809
2523 $RUNTIME += $TICK; 2810 $RUNTIME += $TICK;
2524 $NEXT_TICK += $TICK; 2811 $NEXT_TICK += $TICK;
2525 2812
2526 $WAIT_FOR_TICK->broadcast; 2813 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2814 $NEXT_RUNTIME_WRITE = $NOW + 10;
2528 2815 Coro::async_pool {
2529 Event::sweep; 2816 write_runtime
2530 Coro::cede_notself; 2817 or warn "ERROR: unable to write runtime file: $!";
2818 };
2531 2819 }
2820
2532# my $AFTER = Event::time; 2821# my $AFTER = Event::time;
2533# warn $AFTER - $NOW;#d# 2822# warn $AFTER - $NOW;#d#
2534 2823
2535 # if we are delayed by four ticks or more, skip them all 2824 # if we are delayed by four ticks or more, skip them all
2536 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2825 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2537 2826
2538 $TICK_WATCHER->at ($NEXT_TICK); 2827 $TICK_WATCHER->at ($NEXT_TICK);
2539 $TICK_WATCHER->start; 2828 $TICK_WATCHER->start;
2829
2830 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2831 $sig->send;
2832 }
2833 while (my $sig = shift @WAIT_FOR_TICK) {
2834 $sig->send;
2835 }
2836
2837 _post_tick;
2540 }, 2838 },
2541); 2839);
2542 2840
2543{ 2841{
2544 BDB::max_poll_time $TICK * 0.1; 2842 BDB::max_poll_time $TICK * 0.1;
2595 2893
2596 undef $Coro::AIO::WATCHER; 2894 undef $Coro::AIO::WATCHER;
2597 IO::AIO::max_poll_time $TICK * 0.1; 2895 IO::AIO::max_poll_time $TICK * 0.1;
2598 $AIO_POLL_WATCHER = Event->io ( 2896 $AIO_POLL_WATCHER = Event->io (
2599 reentrant => 0, 2897 reentrant => 0,
2898 data => WF_AUTOCANCEL,
2600 fd => IO::AIO::poll_fileno, 2899 fd => IO::AIO::poll_fileno,
2601 poll => 'r', 2900 poll => 'r',
2602 prio => 6, 2901 prio => 6,
2603 data => WF_AUTOCANCEL,
2604 cb => \&IO::AIO::poll_cb, 2902 cb => \&IO::AIO::poll_cb,
2605 ); 2903 );
2606} 2904}
2607 2905
2608$WRITE_RUNTIME_WATCHER = Event->timer ( 2906# load additional modules
2609 reentrant => 0, 2907use cf::pod;
2610 data => WF_AUTOCANCEL,
2611 after => 1,
2612 interval => 10,
2613 prio => 6, # keep it lowest so it acts like a watchdog
2614 cb => Coro::unblock_sub {
2615 write_runtime
2616 or warn "ERROR: unable to write runtime file: $!";
2617 },
2618);
2619 2908
2620END { cf::emergency_save } 2909END { cf::emergency_save }
2621 2910
26221 29111
2623 2912

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