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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.149 by root, Mon Jan 8 14:11:05 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3; 13use Coro 3.3 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use Digest::MD5; 20use Digest::MD5;
21use Fcntl; 21use Fcntl;
22use IO::AIO 2.31 (); 22use IO::AIO 2.32 ();
23use YAML::Syck (); 23use YAML::Syck ();
24use Time::HiRes; 24use Time::HiRes;
25 25
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 26use Event; $Event::Eval = 1; # no idea why this is required, but it is
27 27
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 29$YAML::Syck::ImplicitUnicode = 1;
30 30
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 31$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32 32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 34
35our %COMMAND = (); 35our %COMMAND = ();
36our %COMMAND_TIME = (); 36our %COMMAND_TIME = ();
47our %CFG; 47our %CFG;
48 48
49our $UPTIME; $UPTIME ||= time; 49our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 50our $RUNTIME;
51 51
52our %PLAYER; # all users
52our %MAP; # all maps 53our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 54our $LINK_MAP; # the special {link} map
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 55our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 56our %EXT_CORO; # coroutines bound to extensions
57 57
58binmode STDOUT; 58binmode STDOUT;
59binmode STDERR; 59binmode STDERR;
60 60
61# read virtual server time, if available 61# read virtual server time, if available
71mkdir cf::localdir . "/" . cf::uniquedir; 71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 72mkdir $RANDOM_MAPS;
73 73
74# a special map that is always available 74# a special map that is always available
75our $LINK_MAP; 75our $LINK_MAP;
76 76our $EMERGENCY_POSITION;
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 77
79############################################################################# 78#############################################################################
80 79
81=head2 GLOBAL VARIABLES 80=head2 GLOBAL VARIABLES
82 81
119 utf8::encode $msg; 118 utf8::encode $msg;
120 119
121 $msg .= "\n" 120 $msg .= "\n"
122 unless $msg =~ /\n$/; 121 unless $msg =~ /\n$/;
123 122
124 LOG llevError, "cfperl: $msg"; 123 LOG llevError, $msg;
125 }; 124 };
126} 125}
127 126
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 127@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 128@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
181sub to_json($) { 180sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 181 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 182 JSON::Syck::Dump $_[0]
184} 183}
185 184
185=item cf::lock_wait $string
186
187Wait until the given lock is available. See cf::lock_acquire.
188
189=item my $lock = cf::lock_acquire $string
190
191Wait until the given lock is available and then acquires it and returns
192a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193for example when the coroutine gets canceled), the lock is automatically
194returned.
195
196Lock names should begin with a unique identifier (for example, cf::map::find
197uses map_find and cf::map::load uses map_load).
198
199=cut
200
201our %LOCK;
202
203sub lock_wait($) {
204 my ($key) = @_;
205
206 # wait for lock, if any
207 while ($LOCK{$key}) {
208 push @{ $LOCK{$key} }, $Coro::current;
209 Coro::schedule;
210 }
211}
212
213sub lock_acquire($) {
214 my ($key) = @_;
215
216 # wait, to be sure we are not locked
217 lock_wait $key;
218
219 $LOCK{$key} = [];
220
221 Coro::guard {
222 # wake up all waiters, to be on the safe side
223 $_->ready for @{ delete $LOCK{$key} };
224 }
225}
226
227sub freeze_mainloop {
228 return unless $TICK_WATCHER->is_active;
229
230 my $guard = Coro::guard { $TICK_WATCHER->start };
231 $TICK_WATCHER->stop;
232 $guard
233}
234
235=item cf::async { BLOCK }
236
237Currently the same as Coro::async_pool, meaning you cannot use
238C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
239thing you are allowed to do is call C<prio> on it.
240
241=cut
242
243BEGIN { *async = \&Coro::async_pool }
244
186=item cf::sync_job { BLOCK } 245=item cf::sync_job { BLOCK }
187 246
188The design of crossfire+ requires that the main coro ($Coro::main) is 247The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 248always able to handle events or runnable, as crossfire+ is only partly
190reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 249reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
203 # this is the main coro, too bad, we have to block 262 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 263 # till the operation succeeds, freezing the server :/
205 264
206 # TODO: use suspend/resume instead 265 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 266 # (but this is cancel-safe)
208 local $FREEZE = 1; 267 my $freeze_guard = freeze_mainloop;
209 268
210 my $busy = 1; 269 my $busy = 1;
211 my @res; 270 my @res;
212 271
213 (Coro::async { 272 (async {
214 @res = eval { $job->() }; 273 @res = eval { $job->() };
215 warn $@ if $@; 274 warn $@ if $@;
216 undef $busy; 275 undef $busy;
217 })->prio (Coro::PRIO_MAX); 276 })->prio (Coro::PRIO_MAX);
218 277
219 while ($busy) { 278 while ($busy) {
220 Coro::cede_notself; 279 Coro::cede or Event::one_event;
221 Event::one_event unless Coro::nready;
222 } 280 }
223 281
224 wantarray ? @res : $res[0] 282 wantarray ? @res : $res[0]
225 } else { 283 } else {
226 # we are in another coroutine, how wonderful, everything just works 284 # we are in another coroutine, how wonderful, everything just works
227 285
228 $job->() 286 $job->()
229 } 287 }
230} 288}
231 289
232=item $coro = cf::coro { BLOCK } 290=item $coro = cf::async_ext { BLOCK }
233 291
234Creates and returns a new coro. This coro is automcatially being canceled 292Like async, but this coro is automcatially being canceled when the
235when the extension calling this is being unloaded. 293extension calling this is being unloaded.
236 294
237=cut 295=cut
238 296
239sub coro(&) { 297sub async_ext(&) {
240 my $cb = shift; 298 my $cb = shift;
241 299
242 my $coro; $coro = async { 300 my $coro = &Coro::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 301
249 $coro->on_destroy (sub { 302 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 303 delete $EXT_CORO{$coro+0};
251 }); 304 });
252 $EXT_CORO{$coro+0} = $coro; 305 $EXT_CORO{$coro+0} = $coro;
289 342
290 $path = $path->as_string if ref $path; 343 $path = $path->as_string if ref $path;
291 344
292 my $self = bless { }, $class; 345 my $self = bless { }, $class;
293 346
347 # {... are special paths that are not touched
348 # ?xxx/... are special absolute paths
349 # ?random/... random maps
350 # /! non-realised random map exit
351 # /... normal maps
352 # ~/... per-player maps without a specific player (DO NOT USE)
353 # ~user/... per-player map of a specific user
354
355 if ($path =~ /^{/) {
356 # fine as it is
294 if ($path =~ s{^\?random/}{}) { 357 } elsif ($path =~ s{^\?random/}{}) {
295 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 358 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296 $self->{random} = cf::from_json $data; 359 $self->{random} = cf::from_json $data;
297 } else { 360 } else {
298 if ($path =~ s{^~([^/]+)?}{}) { 361 if ($path =~ s{^~([^/]+)?}{}) {
299 $self->{user_rel} = 1; 362 $self->{user_rel} = 1;
807 (aio_load "$filename.pst", $av) >= 0 870 (aio_load "$filename.pst", $av) >= 0
808 or return; 871 or return;
809 $av = eval { (Storable::thaw $av)->{objs} }; 872 $av = eval { (Storable::thaw $av)->{objs} };
810 } 873 }
811 874
875 warn sprintf "loading %s (%d)\n",
876 $filename, length $data, scalar @{$av || []};#d#
812 return ($data, $av); 877 return ($data, $av);
813} 878}
814 879
815############################################################################# 880#############################################################################
816# command handling &c 881# command handling &c
1007 1072
1008=head2 CORE EXTENSIONS 1073=head2 CORE EXTENSIONS
1009 1074
1010Functions and methods that extend core crossfire objects. 1075Functions and methods that extend core crossfire objects.
1011 1076
1077=cut
1078
1079package cf::player;
1080
1012=head3 cf::player 1081=head3 cf::player
1013 1082
1014=over 4 1083=over 4
1015 1084
1016=item cf::player::exists $login 1085=item cf::player::find $login
1017 1086
1018Returns true when the given account exists. 1087Returns the given player object, loading it if necessary (might block).
1019 1088
1020=cut 1089=cut
1021 1090
1022sub cf::player::exists($) { 1091sub playerdir($) {
1023 cf::player::find $_[0] 1092 cf::localdir
1024 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1093 . "/"
1094 . cf::playerdir
1095 . "/"
1096 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1097}
1098
1099sub path($) {
1100 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101
1102 (playerdir $login) . "/$login.pl"
1103}
1104
1105sub find_active($) {
1106 $cf::PLAYER{$_[0]}
1107 and $cf::PLAYER{$_[0]}->active
1108 and $cf::PLAYER{$_[0]}
1109}
1110
1111sub exists($) {
1112 my ($login) = @_;
1113
1114 $cf::PLAYER{$login}
1115 or cf::sync_job { !aio_stat $login }
1116}
1117
1118sub find($) {
1119 return $cf::PLAYER{$_[0]} || do {
1120 my $login = $_[0];
1121
1122 my $guard = cf::lock_acquire "user_find:$login";
1123
1124 $cf::PLAYER{$login} ||= (load_pl path $login or return);
1125 };
1126}
1127
1128sub save($) {
1129 my ($pl) = @_;
1130
1131 return if $pl->{deny_save};
1132
1133 my $path = path $pl;
1134 my $guard = cf::lock_acquire "user_save:$path";
1135
1136 return if $pl->{deny_save};
1137
1138 Coro::AIO::aio_mkdir playerdir $pl, 0770;
1139 $pl->{last_save} = $cf::RUNTIME;
1140
1141 $pl->save_pl ($path);
1142 Coro::cede;
1143}
1144
1145sub new($) {
1146 my ($login) = @_;
1147
1148 my $self = create;
1149
1150 $self->ob->name ($login);
1151 $self->{deny_save} = 1;
1152
1153 $cf::PLAYER{$login} = $self;
1154
1155 $self
1156}
1157
1158sub quit_character {
1159 my ($pl) = @_;
1160
1161 $pl->{deny_save} = 1;
1162 $pl->password ("*"); # this should lock out the player until we nuked the dir
1163
1164 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1165 $pl->deactivate;
1166 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1167 $pl->ns->destroy if $pl->ns;
1168
1169 my $path = playerdir $pl;
1170 my $temp = "$path~$cf::RUNTIME~deleting~";
1171 IO::AIO::aio_rename $path, $temp, sub {
1172 delete $cf::PLAYER{$pl->ob->name};
1173 $pl->destroy;
1174
1175 IO::AIO::aio_rmtree $temp;
1176 };
1025} 1177}
1026 1178
1027=item $player->ext_reply ($msgid, $msgtype, %msg) 1179=item $player->ext_reply ($msgid, $msgtype, %msg)
1028 1180
1029Sends an ext reply to the player. 1181Sends an ext reply to the player.
1030 1182
1031=cut 1183=cut
1032 1184
1033sub cf::player::ext_reply($$$%) { 1185sub ext_reply($$$%) {
1034 my ($self, $id, %msg) = @_; 1186 my ($self, $id, %msg) = @_;
1035 1187
1036 $msg{msgid} = $id; 1188 $msg{msgid} = $id;
1037 1189
1038 $self->send ("ext " . to_json \%msg); 1190 $self->send ("ext " . cf::to_json \%msg);
1039} 1191}
1192
1193package cf;
1040 1194
1041=back 1195=back
1042 1196
1043 1197
1044=head3 cf::map 1198=head3 cf::map
1050package cf::map; 1204package cf::map;
1051 1205
1052use Fcntl; 1206use Fcntl;
1053use Coro::AIO; 1207use Coro::AIO;
1054 1208
1055our $MAX_RESET = 7200; 1209our $MAX_RESET = 3600;
1056our $DEFAULT_RESET = 3600; 1210our $DEFAULT_RESET = 3000;
1057 1211
1058sub generate_random_map { 1212sub generate_random_map {
1059 my ($path, $rmp) = @_; 1213 my ($path, $rmp) = @_;
1060 1214
1061 # mit "rum" bekleckern, nicht 1215 # mit "rum" bekleckern, nicht
1077# and all this just because we cannot iterate over 1231# and all this just because we cannot iterate over
1078# all maps in C++... 1232# all maps in C++...
1079sub change_all_map_light { 1233sub change_all_map_light {
1080 my ($change) = @_; 1234 my ($change) = @_;
1081 1235
1082 $_->change_map_light ($change) for values %cf::MAP; 1236 $_->change_map_light ($change)
1237 for grep $_->outdoor, values %cf::MAP;
1083} 1238}
1084 1239
1085sub try_load_header($) { 1240sub try_load_header($) {
1086 my ($path) = @_; 1241 my ($path) = @_;
1087 1242
1090 or return; 1245 or return;
1091 1246
1092 my $map = cf::map::new 1247 my $map = cf::map::new
1093 or return; 1248 or return;
1094 1249
1250 # for better error messages only, will be overwritten
1251 $map->path ($path);
1252
1095 $map->load_header ($path) 1253 $map->load_header ($path)
1096 or return; 1254 or return;
1097 1255
1098 $map->{load_path} = $path; 1256 $map->{load_path} = $path;
1099 1257
1100 $map 1258 $map
1101} 1259}
1102 1260
1261sub find;
1103sub find_map { 1262sub find {
1104 my ($path, $origin) = @_; 1263 my ($path, $origin) = @_;
1105 1264
1106 #warn "find_map<$path,$origin>\n";#d# 1265 #warn "find<$path,$origin>\n";#d#
1107 1266
1108 $path = new cf::path $path, $origin && $origin->path; 1267 $path = new cf::path $path, $origin && $origin->path;
1109 my $key = $path->as_string; 1268 my $key = $path->as_string;
1110 1269
1270 cf::lock_wait "map_find:$key";
1271
1111 $cf::MAP{$key} || do { 1272 $cf::MAP{$key} || do {
1273 my $guard = cf::lock_acquire "map_find:$key";
1274
1112 # do it the slow way 1275 # do it the slow way
1113 my $map = try_load_header $path->save_path; 1276 my $map = try_load_header $path->save_path;
1114 1277
1278 Coro::cede;
1279
1115 if ($map) { 1280 if ($map) {
1281 $map->last_access ((delete $map->{last_access})
1282 || $cf::RUNTIME); #d#
1116 # safety 1283 # safety
1117 $map->{instantiate_time} = $cf::RUNTIME 1284 $map->{instantiate_time} = $cf::RUNTIME
1118 if $map->{instantiate_time} > $cf::RUNTIME; 1285 if $map->{instantiate_time} > $cf::RUNTIME;
1119 } else { 1286 } else {
1120 if (my $rmp = $path->random_map_params) { 1287 if (my $rmp = $path->random_map_params) {
1125 1292
1126 $map or return; 1293 $map or return;
1127 1294
1128 $map->{load_original} = 1; 1295 $map->{load_original} = 1;
1129 $map->{instantiate_time} = $cf::RUNTIME; 1296 $map->{instantiate_time} = $cf::RUNTIME;
1297 $map->last_access ($cf::RUNTIME);
1130 $map->instantiate; 1298 $map->instantiate;
1131 1299
1132 # per-player maps become, after loading, normal maps 1300 # per-player maps become, after loading, normal maps
1133 $map->per_player (0) if $path->{user_rel}; 1301 $map->per_player (0) if $path->{user_rel};
1134 } 1302 }
1135 1303
1136 $map->path ($key); 1304 $map->path ($key);
1137 $map->{path} = $path; 1305 $map->{path} = $path;
1138 $map->last_access ($cf::RUNTIME); 1306 $map->{last_save} = $cf::RUNTIME;
1307
1308 Coro::cede;
1139 1309
1140 if ($map->should_reset) { 1310 if ($map->should_reset) {
1141 $map->reset; 1311 $map->reset;
1312 undef $guard;
1142 $map = find_map $path; 1313 $map = find $path
1314 or return;
1143 } 1315 }
1144 1316
1145 $cf::MAP{$key} = $map 1317 $cf::MAP{$key} = $map
1146 } 1318 }
1147} 1319}
1148 1320
1149sub load { 1321sub load {
1150 my ($self) = @_; 1322 my ($self) = @_;
1151 1323
1324 my $path = $self->{path};
1325 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1326
1152 return if $self->in_memory != cf::MAP_SWAPPED; 1327 return if $self->in_memory != cf::MAP_SWAPPED;
1153 1328
1154 $self->in_memory (cf::MAP_LOADING); 1329 $self->in_memory (cf::MAP_LOADING);
1155
1156 my $path = $self->{path};
1157 1330
1158 $self->alloc; 1331 $self->alloc;
1159 $self->load_objects ($self->{load_path}, 1) 1332 $self->load_objects ($self->{load_path}, 1)
1160 or return; 1333 or return;
1161 1334
1167 if (aio_open $uniq, O_RDONLY, 0) { 1340 if (aio_open $uniq, O_RDONLY, 0) {
1168 $self->clear_unique_items; 1341 $self->clear_unique_items;
1169 $self->load_objects ($uniq, 0); 1342 $self->load_objects ($uniq, 0);
1170 } 1343 }
1171 } 1344 }
1345
1346 Coro::cede;
1172 1347
1173 # now do the right thing for maps 1348 # now do the right thing for maps
1174 $self->link_multipart_objects; 1349 $self->link_multipart_objects;
1175 1350
1176 if ($self->{path}->is_style_map) { 1351 if ($self->{path}->is_style_map) {
1184 $self->difficulty ($self->estimate_difficulty) 1359 $self->difficulty ($self->estimate_difficulty)
1185 unless $self->difficulty; 1360 unless $self->difficulty;
1186 $self->activate; 1361 $self->activate;
1187 } 1362 }
1188 1363
1364 Coro::cede;
1365
1189 $self->in_memory (cf::MAP_IN_MEMORY); 1366 $self->in_memory (cf::MAP_IN_MEMORY);
1190} 1367}
1191 1368
1192sub load_map_sync { 1369sub find_sync {
1193 my ($path, $origin) = @_; 1370 my ($path, $origin) = @_;
1194 1371
1195 #warn "load_map_sync<$path, $origin>\n";#d# 1372 cf::sync_job { cf::map::find $path, $origin }
1373}
1196 1374
1197 cf::sync_job { 1375sub do_load_sync {
1198 my $map = cf::map::find_map $path, $origin 1376 my ($map) = @_;
1199 or return; 1377
1200 $map->load; 1378 cf::sync_job { $map->load };
1201 $map
1202 }
1203} 1379}
1204 1380
1205sub save { 1381sub save {
1206 my ($self) = @_; 1382 my ($self) = @_;
1207 1383
1384 my $lock = cf::lock_acquire "map_data:" . $self->path;
1385
1386 $self->{last_save} = $cf::RUNTIME;
1387
1388 return unless $self->dirty;
1389
1208 my $save = $self->{path}->save_path; utf8::encode $save; 1390 my $save = $self->{path}->save_path; utf8::encode $save;
1209 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1391 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210 1392
1211 $self->{last_save} = $cf::RUNTIME;
1212
1213 return unless $self->dirty;
1214
1215 $self->{load_path} = $save; 1393 $self->{load_path} = $save;
1216 1394
1217 return if $self->{deny_save}; 1395 return if $self->{deny_save};
1396
1397 local $self->{last_access} = $self->last_access;#d#
1398
1399 cf::async {
1400 $_->contr->save for $self->players;
1401 };
1218 1402
1219 if ($uniq) { 1403 if ($uniq) {
1220 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1404 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221 $self->save_objects ($uniq, cf::IO_UNIQUES); 1405 $self->save_objects ($uniq, cf::IO_UNIQUES);
1222 } else { 1406 } else {
1225} 1409}
1226 1410
1227sub swap_out { 1411sub swap_out {
1228 my ($self) = @_; 1412 my ($self) = @_;
1229 1413
1414 # save first because save cedes
1415 $self->save;
1416
1417 my $lock = cf::lock_acquire "map_data:" . $self->path;
1418
1230 return if $self->players; 1419 return if $self->players;
1231 return if $self->in_memory != cf::MAP_IN_MEMORY; 1420 return if $self->in_memory != cf::MAP_IN_MEMORY;
1232 return if $self->{deny_save}; 1421 return if $self->{deny_save};
1233 1422
1234 $self->save;
1235 $self->clear; 1423 $self->clear;
1236 $self->in_memory (cf::MAP_SWAPPED); 1424 $self->in_memory (cf::MAP_SWAPPED);
1237} 1425}
1238 1426
1239sub reset_at { 1427sub reset_at {
1240 my ($self) = @_; 1428 my ($self) = @_;
1241 1429
1242 # TODO: safety, remove and allow resettable per-player maps 1430 # TODO: safety, remove and allow resettable per-player maps
1243 return 1e100 if $self->{path}{user_rel}; 1431 return 1e99 if $self->{path}{user_rel};
1244 return 1e100 if $self->{deny_reset}; 1432 return 1e99 if $self->{deny_reset};
1245 1433
1246 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1434 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247 my $to = $self->reset_timeout || $DEFAULT_RESET; 1435 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248 $to = $MAX_RESET if $to > $MAX_RESET;
1249 1436
1250 $time + $to 1437 $time + $to
1251} 1438}
1252 1439
1253sub should_reset { 1440sub should_reset {
1269 1456
1270 $self->unlink_save; 1457 $self->unlink_save;
1271 1458
1272 delete $cf::MAP{$self->path}; 1459 delete $cf::MAP{$self->path};
1273 $self->{path} = new cf::path $new_path; 1460 $self->{path} = new cf::path $new_path;
1274 $self->path ($self->{path}->path); 1461 $self->path ($self->{path}->as_string);
1275 $cf::MAP{$self->path} = $self; 1462 $cf::MAP{$self->path} = $self;
1276 1463
1277 $self->save; 1464 $self->save;
1278} 1465}
1279 1466
1280sub reset { 1467sub reset {
1281 my ($self) = @_; 1468 my ($self) = @_;
1282 1469
1470 my $lock = cf::lock_acquire "map_data:" . $self->path;
1471
1283 return if $self->players; 1472 return if $self->players;
1284 return if $self->{path}{user_rel};#d# 1473 return if $self->{path}{user_rel};#d#
1285 1474
1286 warn "resetting map ", $self->path;#d# 1475 warn "resetting map ", $self->path;#d#
1287 1476
1291 1480
1292 $self->unlink_save; 1481 $self->unlink_save;
1293 $self->destroy; 1482 $self->destroy;
1294} 1483}
1295 1484
1485my $nuke_counter = "aaaa";
1486
1487sub nuke {
1488 my ($self) = @_;
1489
1490 $self->{deny_save} = 1;
1491 $self->reset_timeout (1);
1492 $self->rename ("{nuke}/" . ($nuke_counter++));
1493 $self->reset; # polite request, might not happen
1494}
1495
1296sub customise_for { 1496sub customise_for {
1297 my ($map, $ob) = @_; 1497 my ($map, $ob) = @_;
1298 1498
1299 if ($map->per_player) { 1499 if ($map->per_player) {
1300 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1500 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1301 } 1501 }
1302 1502
1303 $map 1503 $map
1304} 1504}
1305 1505
1306sub emergency_save { 1506sub emergency_save {
1307 local $cf::FREEZE = 1; 1507 my $freeze_guard = cf::freeze_mainloop;
1308 1508
1309 warn "enter emergency map save\n"; 1509 warn "enter emergency perl save\n";
1310 1510
1311 cf::sync_job { 1511 cf::sync_job {
1512 warn "begin emergency player save\n";
1513 $_->save for values %cf::PLAYER;
1514 warn "end emergency player save\n";
1515
1312 warn "begin emergency map save\n"; 1516 warn "begin emergency map save\n";
1313 $_->save for values %cf::MAP; 1517 $_->save for values %cf::MAP;
1518 warn "end emergency map save\n";
1314 }; 1519 };
1315 1520
1316 warn "end emergency map save\n"; 1521 warn "leave emergency perl save\n";
1317} 1522}
1318 1523
1319package cf; 1524package cf;
1320 1525
1321=back 1526=back
1363 (ref $cf::CFG{"may_$access"} 1568 (ref $cf::CFG{"may_$access"}
1364 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1569 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365 : $cf::CFG{"may_$access"}) 1570 : $cf::CFG{"may_$access"})
1366} 1571}
1367 1572
1573=item $player_object->enter_link
1574
1575Freezes the player and moves him/her to a special map (C<{link}>).
1576
1577The player should be reaosnably safe there for short amounts of time. You
1578I<MUST> call C<leave_link> as soon as possible, though.
1579
1580=item $player_object->leave_link ($map, $x, $y)
1581
1582Moves the player out of the specila link map onto the given map. If the
1583map is not valid (or omitted), the player will be moved back to the
1584location he/she was before the call to C<enter_link>, or, if that fails,
1585to the emergency map position.
1586
1587Might block.
1588
1589=cut
1590
1368sub cf::object::player::enter_link { 1591sub cf::object::player::enter_link {
1369 my ($self) = @_; 1592 my ($self) = @_;
1370 1593
1594 $self->deactivate_recursive;
1595
1371 return if $self->map == $LINK_MAP; 1596 return if $self->map == $LINK_MAP;
1372 1597
1373 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1598 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1374 if $self->map; 1599 if $self->map;
1375 1600
1376 $self->enter_map ($LINK_MAP, 20, 20); 1601 $self->enter_map ($LINK_MAP, 20, 20);
1377 $self->deactivate_recursive;
1378} 1602}
1379 1603
1380sub cf::object::player::leave_link { 1604sub cf::object::player::leave_link {
1381 my ($self, $map, $x, $y) = @_; 1605 my ($self, $map, $x, $y) = @_;
1382 1606
1383 my $link_pos = delete $self->{_link_pos}; 1607 my $link_pos = delete $self->{_link_pos};
1384 1608
1385 unless ($map) { 1609 unless ($map) {
1386 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388 # restore original map position 1610 # restore original map position
1389 ($map, $x, $y) = @{ $link_pos || [] }; 1611 ($map, $x, $y) = @{ $link_pos || [] };
1390 $map = cf::map::find_map $map; 1612 $map = cf::map::find $map;
1391 1613
1392 unless ($map) { 1614 unless ($map) {
1393 ($map, $x, $y) = @$EMERGENCY_POSITION; 1615 ($map, $x, $y) = @$EMERGENCY_POSITION;
1394 $map = cf::map::find_map $map 1616 $map = cf::map::find $map
1395 or die "FATAL: cannot load emergency map\n"; 1617 or die "FATAL: cannot load emergency map\n";
1396 } 1618 }
1397 } 1619 }
1398 1620
1399 ($x, $y) = (-1, -1) 1621 ($x, $y) = (-1, -1)
1403 ($x, $y) = ($map->enter_x, $map->enter_y) 1625 ($x, $y) = ($map->enter_x, $map->enter_y)
1404 if $x <=0 && $y <= 0; 1626 if $x <=0 && $y <= 0;
1405 1627
1406 $map->load; 1628 $map->load;
1407 1629
1630 return unless $self->contr->active;
1408 $self->activate_recursive; 1631 $self->activate_recursive;
1409 $self->enter_map ($map, $x, $y); 1632 $self->enter_map ($map, $x, $y);
1410} 1633}
1411 1634
1635cf::player->attach (
1636 on_logout => sub {
1637 my ($pl) = @_;
1638
1639 # abort map switching before logout
1640 if ($pl->ob->{_link_pos}) {
1641 cf::sync_job {
1642 $pl->ob->leave_link
1643 };
1644 }
1645 },
1646 on_login => sub {
1647 my ($pl) = @_;
1648
1649 # try to abort aborted map switching on player login :)
1650 # should happen only on crashes
1651 if ($pl->ob->{_link_pos}) {
1652 $pl->ob->enter_link;
1653 (async {
1654 # we need this sleep as the login has a concurrent enter_exit running
1655 # and this sleep increases chances of the player not ending up in scorn
1656 $pl->ob->reply (undef,
1657 "There was an internal problem at your last logout, "
1658 . "the server will try to bring you to your intended destination in a second.",
1659 cf::NDI_RED);
1660 Coro::Timer::sleep 1;
1661 $pl->ob->leave_link;
1662 })->prio (2);
1663 }
1664 },
1665);
1666
1412=item $player_object->goto_map ($map, $x, $y) 1667=item $player_object->goto ($path, $x, $y)
1413 1668
1414=cut 1669=cut
1415 1670
1416sub cf::object::player::goto_map { 1671sub cf::object::player::goto {
1417 my ($self, $path, $x, $y) = @_; 1672 my ($self, $path, $x, $y) = @_;
1418 1673
1419 $self->enter_link; 1674 $self->enter_link;
1420 1675
1421 (Coro::async { 1676 (async {
1422 $path = new cf::path $path; 1677 $path = new cf::path $path;
1423 1678
1424 my $map = cf::map::find_map $path->as_string; 1679 my $map = cf::map::find $path->as_string;
1425 $map = $map->customise_for ($self) if $map; 1680 $map = $map->customise_for ($self) if $map;
1426 1681
1427 warn "entering ", $map->path, " at ($x, $y)\n" 1682# warn "entering ", $map->path, " at ($x, $y)\n"
1428 if $map; 1683# if $map;
1684
1685 $map or $map->cluck ("oy");#d#
1686 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1429 1687
1430 $self->leave_link ($map, $x, $y); 1688 $self->leave_link ($map, $x, $y);
1431 })->prio (1); 1689 })->prio (1);
1432} 1690}
1433 1691
1486 1744
1487 return unless $self->type == cf::PLAYER; 1745 return unless $self->type == cf::PLAYER;
1488 1746
1489 $self->enter_link; 1747 $self->enter_link;
1490 1748
1491 (Coro::async { 1749 (async {
1750 $self->deactivate_recursive; # just to be sure
1492 unless (eval { 1751 unless (eval {
1493
1494 prepare_random_map $exit 1752 prepare_random_map $exit
1495 if $exit->slaying eq "/!"; 1753 if $exit->slaying eq "/!";
1496 1754
1497 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1755 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1756 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1499 1757
1500 1; 1758 1;
1501 }) { 1759 }) {
1502 $self->message ("Something went wrong deep within the crossfire server. " 1760 $self->message ("Something went wrong deep within the crossfire server. "
1503 . "I'll try to bring you back to the map you were before. " 1761 . "I'll try to bring you back to the map you were before. "
1560 on_reply => sub { 1818 on_reply => sub {
1561 my ($ns, $msg) = @_; 1819 my ($ns, $msg) = @_;
1562 1820
1563 # this weird shuffling is so that direct followup queries 1821 # this weird shuffling is so that direct followup queries
1564 # get handled first 1822 # get handled first
1565 my $queue = delete $ns->{query_queue}; 1823 my $queue = delete $ns->{query_queue}
1824 or return; # be conservative, not sure how that can happen, but we saw a crash here
1566 1825
1567 (shift @$queue)->[1]->($msg); 1826 (shift @$queue)->[1]->($msg);
1568 1827
1569 push @{ $ns->{query_queue} }, @$queue; 1828 push @{ $ns->{query_queue} }, @$queue;
1570 1829
1576 } 1835 }
1577 } 1836 }
1578 }, 1837 },
1579); 1838);
1580 1839
1581=item $client->coro (\&cb) 1840=item $client->async (\&cb)
1582 1841
1583Create a new coroutine, running the specified callback. The coroutine will 1842Create a new coroutine, running the specified callback. The coroutine will
1584be automatically cancelled when the client gets destroyed (e.g. on logout, 1843be automatically cancelled when the client gets destroyed (e.g. on logout,
1585or loss of connection). 1844or loss of connection).
1586 1845
1587=cut 1846=cut
1588 1847
1589sub cf::client::coro { 1848sub cf::client::async {
1590 my ($self, $cb) = @_; 1849 my ($self, $cb) = @_;
1591 1850
1592 my $coro; $coro = async { 1851 my $coro = &Coro::async ($cb);
1593 eval {
1594 $cb->();
1595 };
1596 warn $@ if $@;
1597 };
1598 1852
1599 $coro->on_destroy (sub { 1853 $coro->on_destroy (sub {
1600 delete $self->{_coro}{$coro+0}; 1854 delete $self->{_coro}{$coro+0};
1601 }); 1855 });
1602 1856
1774 2028
1775{ 2029{
1776 my $path = cf::localdir . "/database.pst"; 2030 my $path = cf::localdir . "/database.pst";
1777 2031
1778 sub db_load() { 2032 sub db_load() {
1779 warn "loading database $path\n";#d# remove later
1780 $DB = stat $path ? Storable::retrieve $path : { }; 2033 $DB = stat $path ? Storable::retrieve $path : { };
1781 } 2034 }
1782 2035
1783 my $pid; 2036 my $pid;
1784 2037
1785 sub db_save() { 2038 sub db_save() {
1786 warn "saving database $path\n";#d# remove later
1787 waitpid $pid, 0 if $pid; 2039 waitpid $pid, 0 if $pid;
1788 if (0 == ($pid = fork)) { 2040 if (0 == ($pid = fork)) {
1789 $DB->{_meta}{version} = 1; 2041 $DB->{_meta}{version} = 1;
1790 Storable::nstore $DB, "$path~"; 2042 Storable::nstore $DB, "$path~";
1791 rename "$path~", $path; 2043 rename "$path~", $path;
1839 open my $fh, "<:utf8", cf::confdir . "/config" 2091 open my $fh, "<:utf8", cf::confdir . "/config"
1840 or return; 2092 or return;
1841 2093
1842 local $/; 2094 local $/;
1843 *CFG = YAML::Syck::Load <$fh>; 2095 *CFG = YAML::Syck::Load <$fh>;
2096
2097 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2098
2099 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2101
2102 if (exists $CFG{mlockall}) {
2103 eval {
2104 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2105 and die "WARNING: m(un)lockall failed: $!\n";
2106 };
2107 warn $@ if $@;
2108 }
1844} 2109}
1845 2110
1846sub main { 2111sub main {
1847 # we must not ever block the main coroutine 2112 # we must not ever block the main coroutine
1848 local $Coro::idle = sub { 2113 local $Coro::idle = sub {
1849 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2114 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850 (Coro::unblock_sub {
1851 Event::one_event; 2115 async { Event::one_event };
1852 })->();
1853 }; 2116 };
1854 2117
1855 cfg_load; 2118 cfg_load;
1856 db_load; 2119 db_load;
1857 load_extensions; 2120 load_extensions;
1868 return; 2131 return;
1869 } 2132 }
1870 2133
1871 warn "reloading..."; 2134 warn "reloading...";
1872 2135
1873 local $FREEZE = 1; 2136 my $guard = freeze_mainloop;
1874 cf::emergency_save; 2137 cf::emergency_save;
1875 2138
1876 eval { 2139 eval {
1877 # if anything goes wrong in here, we should simply crash as we already saved 2140 # if anything goes wrong in here, we should simply crash as we already saved
1878 2141
1940 cf::load_extensions; 2203 cf::load_extensions;
1941 2204
1942 # reattach attachments to objects 2205 # reattach attachments to objects
1943 warn "reattach"; 2206 warn "reattach";
1944 _global_reattach; 2207 _global_reattach;
2208 reattach $_ for values %MAP;
1945 }; 2209 };
1946 2210
1947 if ($@) { 2211 if ($@) {
1948 warn $@; 2212 warn $@;
1949 warn "error while reloading, exiting."; 2213 warn "error while reloading, exiting.";
1965 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2229 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2230 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1967 2231
1968 # dirty hack because... archetypes are not yet loaded 2232 # dirty hack because... archetypes are not yet loaded
1969 Event->timer ( 2233 Event->timer (
1970 after => 2, 2234 after => 10,
1971 cb => sub { 2235 cb => sub {
1972 $_[0]->w->cancel; 2236 $_[0]->w->cancel;
1973 2237
1974 # provide some exits "home" 2238 # provide some exits "home"
1975 my $exit = cf::object::new "exit"; 2239 my $exit = cf::object::new "exit";
2014 reentrant => 0, 2278 reentrant => 0,
2015 prio => 0, 2279 prio => 0,
2016 at => $NEXT_TICK || $TICK, 2280 at => $NEXT_TICK || $TICK,
2017 data => WF_AUTOCANCEL, 2281 data => WF_AUTOCANCEL,
2018 cb => sub { 2282 cb => sub {
2019 unless ($FREEZE) {
2020 cf::server_tick; # one server iteration 2283 cf::server_tick; # one server iteration
2021 $RUNTIME += $TICK; 2284 $RUNTIME += $TICK;
2022 }
2023
2024 $NEXT_TICK += $TICK; 2285 $NEXT_TICK += $TICK;
2025 2286
2026 # if we are delayed by four ticks or more, skip them all 2287 # if we are delayed by four ticks or more, skip them all
2027 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2288 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2028 2289
2051 or warn "ERROR: unable to write runtime file: $!"; 2312 or warn "ERROR: unable to write runtime file: $!";
2052 })->(); 2313 })->();
2053 }, 2314 },
2054); 2315);
2055 2316
2317END { cf::emergency_save }
2318
20561 23191
2057 2320

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