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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 1.143 by root, Sun Jan 7 02:39:14 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;
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 = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 77
79############################################################################# 78#############################################################################
80 79
81=head2 GLOBAL VARIABLES 80=head2 GLOBAL VARIABLES
82 81
181sub to_json($) { 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 path($) {
1023 cf::player::find $_[0] 1092 sprintf "%s/%s/%s/%s.pl",
1024 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1093 cf::localdir, cf::playerdir,
1094 (ref $_[0] ? $_[0]->ob->name : $_[0]) x 2
1095}
1096
1097sub find_active($) {
1098 $cf::PLAYER{$_[0]}
1099 and $cf::PLAYER{$_[0]}->active
1100 and $cf::PLAYER{$_[0]}
1101}
1102
1103sub exists($) {
1104 my ($login) = @_;
1105
1106 $cf::PLAYER{$login}
1107 or cf::sync_job { !aio_stat $login }
1108}
1109
1110sub find($) {
1111 return $cf::PLAYER{$_[0]} || do {
1112 my $login = $_[0];
1113
1114 my $guard = cf::lock_acquire "user_find:$login";
1115
1116 $cf::PLAYER{$login} ||= (load_pl path $login or return);
1117 };
1118}
1119
1120sub save($) {
1121 my ($pl) = @_;
1122
1123 return if $pl->{deny_save};
1124
1125 my $path = path $pl;
1126 my $guard = cf::lock_acquire "user_save:$path";
1127
1128 return if $pl->{deny_save};
1129 $pl->{last_save} = $cf::RUNTIME;
1130
1131 Coro::cede;
1132 $pl->save_pl ($path);
1133 Coro::cede;
1134}
1135
1136sub new($) {
1137 my ($login) = @_;
1138
1139 my $self = create;
1140
1141 $self->ob->name ($login);
1142 $self->{deny_save} = 1;
1143
1144 $cf::PLAYER{$login} = $self;
1145
1146 $self
1025} 1147}
1026 1148
1027=item $player->ext_reply ($msgid, $msgtype, %msg) 1149=item $player->ext_reply ($msgid, $msgtype, %msg)
1028 1150
1029Sends an ext reply to the player. 1151Sends an ext reply to the player.
1030 1152
1031=cut 1153=cut
1032 1154
1033sub cf::player::ext_reply($$$%) { 1155sub ext_reply($$$%) {
1034 my ($self, $id, %msg) = @_; 1156 my ($self, $id, %msg) = @_;
1035 1157
1036 $msg{msgid} = $id; 1158 $msg{msgid} = $id;
1037 1159
1038 $self->send ("ext " . to_json \%msg); 1160 $self->send ("ext " . cf::to_json \%msg);
1039} 1161}
1162
1163package cf;
1040 1164
1041=back 1165=back
1042 1166
1043 1167
1044=head3 cf::map 1168=head3 cf::map
1050package cf::map; 1174package cf::map;
1051 1175
1052use Fcntl; 1176use Fcntl;
1053use Coro::AIO; 1177use Coro::AIO;
1054 1178
1055our $MAX_RESET = 7200; 1179our $MAX_RESET = 3600;
1056our $DEFAULT_RESET = 3600; 1180our $DEFAULT_RESET = 3000;
1057 1181
1058sub generate_random_map { 1182sub generate_random_map {
1059 my ($path, $rmp) = @_; 1183 my ($path, $rmp) = @_;
1060 1184
1061 # mit "rum" bekleckern, nicht 1185 # mit "rum" bekleckern, nicht
1077# and all this just because we cannot iterate over 1201# and all this just because we cannot iterate over
1078# all maps in C++... 1202# all maps in C++...
1079sub change_all_map_light { 1203sub change_all_map_light {
1080 my ($change) = @_; 1204 my ($change) = @_;
1081 1205
1082 $_->change_map_light ($change) for values %cf::MAP; 1206 $_->change_map_light ($change)
1207 for grep $_->outdoor, values %cf::MAP;
1083} 1208}
1084 1209
1085sub try_load_header($) { 1210sub try_load_header($) {
1086 my ($path) = @_; 1211 my ($path) = @_;
1087 1212
1090 or return; 1215 or return;
1091 1216
1092 my $map = cf::map::new 1217 my $map = cf::map::new
1093 or return; 1218 or return;
1094 1219
1220 # for better error messages only, will be overwritten
1221 $map->path ($path);
1222
1095 $map->load_header ($path) 1223 $map->load_header ($path)
1096 or return; 1224 or return;
1097 1225
1098 $map->{load_path} = $path; 1226 $map->{load_path} = $path;
1099 1227
1100 $map 1228 $map
1101} 1229}
1102 1230
1231sub find;
1103sub find_map { 1232sub find {
1104 my ($path, $origin) = @_; 1233 my ($path, $origin) = @_;
1105 1234
1106 #warn "find_map<$path,$origin>\n";#d# 1235 #warn "find<$path,$origin>\n";#d#
1107 1236
1108 $path = new cf::path $path, $origin && $origin->path; 1237 $path = new cf::path $path, $origin && $origin->path;
1109 my $key = $path->as_string; 1238 my $key = $path->as_string;
1110 1239
1240 cf::lock_wait "map_find:$key";
1241
1111 $cf::MAP{$key} || do { 1242 $cf::MAP{$key} || do {
1243 my $guard = cf::lock_acquire "map_find:$key";
1244
1112 # do it the slow way 1245 # do it the slow way
1113 my $map = try_load_header $path->save_path; 1246 my $map = try_load_header $path->save_path;
1114 1247
1248 Coro::cede;
1249
1115 if ($map) { 1250 if ($map) {
1251 $map->last_access ((delete $map->{last_access})
1252 || $cf::RUNTIME); #d#
1116 # safety 1253 # safety
1117 $map->{instantiate_time} = $cf::RUNTIME 1254 $map->{instantiate_time} = $cf::RUNTIME
1118 if $map->{instantiate_time} > $cf::RUNTIME; 1255 if $map->{instantiate_time} > $cf::RUNTIME;
1119 } else { 1256 } else {
1120 if (my $rmp = $path->random_map_params) { 1257 if (my $rmp = $path->random_map_params) {
1125 1262
1126 $map or return; 1263 $map or return;
1127 1264
1128 $map->{load_original} = 1; 1265 $map->{load_original} = 1;
1129 $map->{instantiate_time} = $cf::RUNTIME; 1266 $map->{instantiate_time} = $cf::RUNTIME;
1267 $map->last_access ($cf::RUNTIME);
1130 $map->instantiate; 1268 $map->instantiate;
1131 1269
1132 # per-player maps become, after loading, normal maps 1270 # per-player maps become, after loading, normal maps
1133 $map->per_player (0) if $path->{user_rel}; 1271 $map->per_player (0) if $path->{user_rel};
1134 } 1272 }
1135 1273
1136 $map->path ($key); 1274 $map->path ($key);
1137 $map->{path} = $path; 1275 $map->{path} = $path;
1138 $map->last_access ($cf::RUNTIME); 1276 $map->{last_save} = $cf::RUNTIME;
1277
1278 Coro::cede;
1139 1279
1140 if ($map->should_reset) { 1280 if ($map->should_reset) {
1141 $map->reset; 1281 $map->reset;
1282 undef $guard;
1142 $map = find_map $path; 1283 $map = find $path
1284 or return;
1143 } 1285 }
1144 1286
1145 $cf::MAP{$key} = $map 1287 $cf::MAP{$key} = $map
1146 } 1288 }
1147} 1289}
1148 1290
1149sub load { 1291sub load {
1150 my ($self) = @_; 1292 my ($self) = @_;
1151 1293
1294 my $path = $self->{path};
1295 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1296
1152 return if $self->in_memory != cf::MAP_SWAPPED; 1297 return if $self->in_memory != cf::MAP_SWAPPED;
1153 1298
1154 $self->in_memory (cf::MAP_LOADING); 1299 $self->in_memory (cf::MAP_LOADING);
1155
1156 my $path = $self->{path};
1157 1300
1158 $self->alloc; 1301 $self->alloc;
1159 $self->load_objects ($self->{load_path}, 1) 1302 $self->load_objects ($self->{load_path}, 1)
1160 or return; 1303 or return;
1161 1304
1167 if (aio_open $uniq, O_RDONLY, 0) { 1310 if (aio_open $uniq, O_RDONLY, 0) {
1168 $self->clear_unique_items; 1311 $self->clear_unique_items;
1169 $self->load_objects ($uniq, 0); 1312 $self->load_objects ($uniq, 0);
1170 } 1313 }
1171 } 1314 }
1315
1316 Coro::cede;
1172 1317
1173 # now do the right thing for maps 1318 # now do the right thing for maps
1174 $self->link_multipart_objects; 1319 $self->link_multipart_objects;
1175 1320
1176 if ($self->{path}->is_style_map) { 1321 if ($self->{path}->is_style_map) {
1184 $self->difficulty ($self->estimate_difficulty) 1329 $self->difficulty ($self->estimate_difficulty)
1185 unless $self->difficulty; 1330 unless $self->difficulty;
1186 $self->activate; 1331 $self->activate;
1187 } 1332 }
1188 1333
1334 Coro::cede;
1335
1189 $self->in_memory (cf::MAP_IN_MEMORY); 1336 $self->in_memory (cf::MAP_IN_MEMORY);
1190} 1337}
1191 1338
1192sub load_map_sync { 1339sub find_sync {
1193 my ($path, $origin) = @_; 1340 my ($path, $origin) = @_;
1194 1341
1195 #warn "load_map_sync<$path, $origin>\n";#d# 1342 cf::sync_job { cf::map::find $path, $origin }
1343}
1196 1344
1197 cf::sync_job { 1345sub do_load_sync {
1198 my $map = cf::map::find_map $path, $origin 1346 my ($map) = @_;
1199 or return; 1347
1200 $map->load; 1348 cf::sync_job { $map->load };
1201 $map
1202 }
1203} 1349}
1204 1350
1205sub save { 1351sub save {
1206 my ($self) = @_; 1352 my ($self) = @_;
1207 1353
1354 my $lock = cf::lock_acquire "map_data:" . $self->path;
1355
1356 $self->{last_save} = $cf::RUNTIME;
1357
1358 return unless $self->dirty;
1359
1208 my $save = $self->{path}->save_path; utf8::encode $save; 1360 my $save = $self->{path}->save_path; utf8::encode $save;
1209 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1361 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210 1362
1211 $self->{last_save} = $cf::RUNTIME;
1212
1213 return unless $self->dirty;
1214
1215 $self->{load_path} = $save; 1363 $self->{load_path} = $save;
1216 1364
1217 return if $self->{deny_save}; 1365 return if $self->{deny_save};
1366
1367 local $self->{last_access} = $self->last_access;#d#
1368
1369 cf::async {
1370 $_->contr->save for $self->players;
1371 };
1218 1372
1219 if ($uniq) { 1373 if ($uniq) {
1220 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1374 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221 $self->save_objects ($uniq, cf::IO_UNIQUES); 1375 $self->save_objects ($uniq, cf::IO_UNIQUES);
1222 } else { 1376 } else {
1225} 1379}
1226 1380
1227sub swap_out { 1381sub swap_out {
1228 my ($self) = @_; 1382 my ($self) = @_;
1229 1383
1384 # save first because save cedes
1385 $self->save;
1386
1387 my $lock = cf::lock_acquire "map_data:" . $self->path;
1388
1230 return if $self->players; 1389 return if $self->players;
1231 return if $self->in_memory != cf::MAP_IN_MEMORY; 1390 return if $self->in_memory != cf::MAP_IN_MEMORY;
1232 return if $self->{deny_save}; 1391 return if $self->{deny_save};
1233 1392
1234 $self->save;
1235 $self->clear; 1393 $self->clear;
1236 $self->in_memory (cf::MAP_SWAPPED); 1394 $self->in_memory (cf::MAP_SWAPPED);
1237} 1395}
1238 1396
1239sub reset_at { 1397sub reset_at {
1240 my ($self) = @_; 1398 my ($self) = @_;
1241 1399
1242 # TODO: safety, remove and allow resettable per-player maps 1400 # TODO: safety, remove and allow resettable per-player maps
1243 return 1e100 if $self->{path}{user_rel}; 1401 return 1e99 if $self->{path}{user_rel};
1244 return 1e100 if $self->{deny_reset}; 1402 return 1e99 if $self->{deny_reset};
1245 1403
1246 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1404 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247 my $to = $self->reset_timeout || $DEFAULT_RESET; 1405 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248 $to = $MAX_RESET if $to > $MAX_RESET;
1249 1406
1250 $time + $to 1407 $time + $to
1251} 1408}
1252 1409
1253sub should_reset { 1410sub should_reset {
1269 1426
1270 $self->unlink_save; 1427 $self->unlink_save;
1271 1428
1272 delete $cf::MAP{$self->path}; 1429 delete $cf::MAP{$self->path};
1273 $self->{path} = new cf::path $new_path; 1430 $self->{path} = new cf::path $new_path;
1274 $self->path ($self->{path}->path); 1431 $self->path ($self->{path}->as_string);
1275 $cf::MAP{$self->path} = $self; 1432 $cf::MAP{$self->path} = $self;
1276 1433
1277 $self->save; 1434 $self->save;
1278} 1435}
1279 1436
1280sub reset { 1437sub reset {
1281 my ($self) = @_; 1438 my ($self) = @_;
1282 1439
1440 my $lock = cf::lock_acquire "map_data:" . $self->path;
1441
1283 return if $self->players; 1442 return if $self->players;
1284 return if $self->{path}{user_rel};#d# 1443 return if $self->{path}{user_rel};#d#
1285 1444
1286 warn "resetting map ", $self->path;#d# 1445 warn "resetting map ", $self->path;#d#
1287 1446
1291 1450
1292 $self->unlink_save; 1451 $self->unlink_save;
1293 $self->destroy; 1452 $self->destroy;
1294} 1453}
1295 1454
1455my $nuke_counter = "aaaa";
1456
1457sub nuke {
1458 my ($self) = @_;
1459
1460 $self->{deny_save} = 1;
1461 $self->reset_timeout (1);
1462 $self->rename ("{nuke}/" . ($nuke_counter++));
1463 $self->reset; # polite request, might not happen
1464}
1465
1296sub customise_for { 1466sub customise_for {
1297 my ($map, $ob) = @_; 1467 my ($map, $ob) = @_;
1298 1468
1299 if ($map->per_player) { 1469 if ($map->per_player) {
1300 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1470 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1301 } 1471 }
1302 1472
1303 $map 1473 $map
1304} 1474}
1305 1475
1306sub emergency_save { 1476sub emergency_save {
1307 local $cf::FREEZE = 1; 1477 my $freeze_guard = cf::freeze_mainloop;
1308 1478
1309 warn "enter emergency map save\n"; 1479 warn "enter emergency map save\n";
1310 1480
1311 cf::sync_job { 1481 cf::sync_job {
1312 warn "begin emergency map save\n"; 1482 warn "begin emergency map save\n";
1363 (ref $cf::CFG{"may_$access"} 1533 (ref $cf::CFG{"may_$access"}
1364 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1534 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365 : $cf::CFG{"may_$access"}) 1535 : $cf::CFG{"may_$access"})
1366} 1536}
1367 1537
1538=item $player_object->enter_link
1539
1540Freezes the player and moves him/her to a special map (C<{link}>).
1541
1542The player should be reaosnably safe there for short amounts of time. You
1543I<MUST> call C<leave_link> as soon as possible, though.
1544
1545=item $player_object->leave_link ($map, $x, $y)
1546
1547Moves the player out of the specila link map onto the given map. If the
1548map is not valid (or omitted), the player will be moved back to the
1549location he/she was before the call to C<enter_link>, or, if that fails,
1550to the emergency map position.
1551
1552Might block.
1553
1554=cut
1555
1368sub cf::object::player::enter_link { 1556sub cf::object::player::enter_link {
1369 my ($self) = @_; 1557 my ($self) = @_;
1370 1558
1559 $self->deactivate_recursive;
1560
1371 return if $self->map == $LINK_MAP; 1561 return if $self->map == $LINK_MAP;
1372 1562
1373 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1563 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1374 if $self->map; 1564 if $self->map;
1375 1565
1376 $self->enter_map ($LINK_MAP, 20, 20); 1566 $self->enter_map ($LINK_MAP, 20, 20);
1377 $self->deactivate_recursive;
1378} 1567}
1379 1568
1380sub cf::object::player::leave_link { 1569sub cf::object::player::leave_link {
1381 my ($self, $map, $x, $y) = @_; 1570 my ($self, $map, $x, $y) = @_;
1382 1571
1383 my $link_pos = delete $self->{_link_pos}; 1572 my $link_pos = delete $self->{_link_pos};
1384 1573
1385 unless ($map) { 1574 unless ($map) {
1386 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388 # restore original map position 1575 # restore original map position
1389 ($map, $x, $y) = @{ $link_pos || [] }; 1576 ($map, $x, $y) = @{ $link_pos || [] };
1390 $map = cf::map::find_map $map; 1577 $map = cf::map::find $map;
1391 1578
1392 unless ($map) { 1579 unless ($map) {
1393 ($map, $x, $y) = @$EMERGENCY_POSITION; 1580 ($map, $x, $y) = @$EMERGENCY_POSITION;
1394 $map = cf::map::find_map $map 1581 $map = cf::map::find $map
1395 or die "FATAL: cannot load emergency map\n"; 1582 or die "FATAL: cannot load emergency map\n";
1396 } 1583 }
1397 } 1584 }
1398 1585
1399 ($x, $y) = (-1, -1) 1586 ($x, $y) = (-1, -1)
1403 ($x, $y) = ($map->enter_x, $map->enter_y) 1590 ($x, $y) = ($map->enter_x, $map->enter_y)
1404 if $x <=0 && $y <= 0; 1591 if $x <=0 && $y <= 0;
1405 1592
1406 $map->load; 1593 $map->load;
1407 1594
1595 return unless $self->contr->active;
1408 $self->activate_recursive; 1596 $self->activate_recursive;
1409 $self->enter_map ($map, $x, $y); 1597 $self->enter_map ($map, $x, $y);
1410} 1598}
1411 1599
1600cf::player->attach (
1601 on_logout => sub {
1602 my ($pl) = @_;
1603
1604 # abort map switching before logout
1605 if ($pl->ob->{_link_pos}) {
1606 cf::sync_job {
1607 $pl->ob->leave_link
1608 };
1609 }
1610 },
1611 on_login => sub {
1612 my ($pl) = @_;
1613
1614 # try to abort aborted map switching on player login :)
1615 # should happen only on crashes
1616 if ($pl->ob->{_link_pos}) {
1617 $pl->ob->enter_link;
1618 (async {
1619 # we need this sleep as the login has a concurrent enter_exit running
1620 # and this sleep increases chances of the player not ending up in scorn
1621 $pl->ob->reply (undef,
1622 "There was an internal problem at your last logout, "
1623 . "the server will try to bring you to your intended destination in a second.",
1624 cf::NDI_RED);
1625 Coro::Timer::sleep 1;
1626 $pl->ob->leave_link;
1627 })->prio (2);
1628 }
1629 },
1630);
1631
1412=item $player_object->goto_map ($map, $x, $y) 1632=item $player_object->goto ($path, $x, $y)
1413 1633
1414=cut 1634=cut
1415 1635
1416sub cf::object::player::goto_map { 1636sub cf::object::player::goto {
1417 my ($self, $path, $x, $y) = @_; 1637 my ($self, $path, $x, $y) = @_;
1418 1638
1419 $self->enter_link; 1639 $self->enter_link;
1420 1640
1421 (Coro::async { 1641 (async {
1422 $path = new cf::path $path; 1642 $path = new cf::path $path;
1423 1643
1424 my $map = cf::map::find_map $path->as_string; 1644 my $map = cf::map::find $path->as_string;
1425 $map = $map->customise_for ($self) if $map; 1645 $map = $map->customise_for ($self) if $map;
1426 1646
1427 warn "entering ", $map->path, " at ($x, $y)\n" 1647# warn "entering ", $map->path, " at ($x, $y)\n"
1428 if $map; 1648# if $map;
1649
1650 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1429 1651
1430 $self->leave_link ($map, $x, $y); 1652 $self->leave_link ($map, $x, $y);
1431 })->prio (1); 1653 })->prio (1);
1432} 1654}
1433 1655
1486 1708
1487 return unless $self->type == cf::PLAYER; 1709 return unless $self->type == cf::PLAYER;
1488 1710
1489 $self->enter_link; 1711 $self->enter_link;
1490 1712
1491 (Coro::async { 1713 (async {
1714 $self->deactivate_recursive; # just to be sure
1492 unless (eval { 1715 unless (eval {
1493
1494 prepare_random_map $exit 1716 prepare_random_map $exit
1495 if $exit->slaying eq "/!"; 1717 if $exit->slaying eq "/!";
1496 1718
1497 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1719 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1720 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1499 1721
1500 1; 1722 1;
1501 }) { 1723 }) {
1502 $self->message ("Something went wrong deep within the crossfire server. " 1724 $self->message ("Something went wrong deep within the crossfire server. "
1503 . "I'll try to bring you back to the map you were before. " 1725 . "I'll try to bring you back to the map you were before. "
1560 on_reply => sub { 1782 on_reply => sub {
1561 my ($ns, $msg) = @_; 1783 my ($ns, $msg) = @_;
1562 1784
1563 # this weird shuffling is so that direct followup queries 1785 # this weird shuffling is so that direct followup queries
1564 # get handled first 1786 # get handled first
1565 my $queue = delete $ns->{query_queue}; 1787 my $queue = delete $ns->{query_queue}
1788 or return; # be conservative, not sure how that can happen, but we saw a crash here
1566 1789
1567 (shift @$queue)->[1]->($msg); 1790 (shift @$queue)->[1]->($msg);
1568 1791
1569 push @{ $ns->{query_queue} }, @$queue; 1792 push @{ $ns->{query_queue} }, @$queue;
1570 1793
1576 } 1799 }
1577 } 1800 }
1578 }, 1801 },
1579); 1802);
1580 1803
1581=item $client->coro (\&cb) 1804=item $client->async (\&cb)
1582 1805
1583Create a new coroutine, running the specified callback. The coroutine will 1806Create a new coroutine, running the specified callback. The coroutine will
1584be automatically cancelled when the client gets destroyed (e.g. on logout, 1807be automatically cancelled when the client gets destroyed (e.g. on logout,
1585or loss of connection). 1808or loss of connection).
1586 1809
1587=cut 1810=cut
1588 1811
1589sub cf::client::coro { 1812sub cf::client::async {
1590 my ($self, $cb) = @_; 1813 my ($self, $cb) = @_;
1591 1814
1592 my $coro; $coro = async { 1815 my $coro = &Coro::async ($cb);
1593 eval {
1594 $cb->();
1595 };
1596 warn $@ if $@;
1597 };
1598 1816
1599 $coro->on_destroy (sub { 1817 $coro->on_destroy (sub {
1600 delete $self->{_coro}{$coro+0}; 1818 delete $self->{_coro}{$coro+0};
1601 }); 1819 });
1602 1820
1774 1992
1775{ 1993{
1776 my $path = cf::localdir . "/database.pst"; 1994 my $path = cf::localdir . "/database.pst";
1777 1995
1778 sub db_load() { 1996 sub db_load() {
1779 warn "loading database $path\n";#d# remove later
1780 $DB = stat $path ? Storable::retrieve $path : { }; 1997 $DB = stat $path ? Storable::retrieve $path : { };
1781 } 1998 }
1782 1999
1783 my $pid; 2000 my $pid;
1784 2001
1785 sub db_save() { 2002 sub db_save() {
1786 warn "saving database $path\n";#d# remove later
1787 waitpid $pid, 0 if $pid; 2003 waitpid $pid, 0 if $pid;
1788 if (0 == ($pid = fork)) { 2004 if (0 == ($pid = fork)) {
1789 $DB->{_meta}{version} = 1; 2005 $DB->{_meta}{version} = 1;
1790 Storable::nstore $DB, "$path~"; 2006 Storable::nstore $DB, "$path~";
1791 rename "$path~", $path; 2007 rename "$path~", $path;
1839 open my $fh, "<:utf8", cf::confdir . "/config" 2055 open my $fh, "<:utf8", cf::confdir . "/config"
1840 or return; 2056 or return;
1841 2057
1842 local $/; 2058 local $/;
1843 *CFG = YAML::Syck::Load <$fh>; 2059 *CFG = YAML::Syck::Load <$fh>;
2060
2061 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2062
2063 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2064 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2065
2066 if (exists $CFG{mlockall}) {
2067 eval {
2068 $CFG{mlockall} ? &mlockall : &munlockall
2069 and die "WARNING: m(un)lockall failed: $!\n";
2070 };
2071 warn $@ if $@;
2072 }
1844} 2073}
1845 2074
1846sub main { 2075sub main {
1847 # we must not ever block the main coroutine 2076 # we must not ever block the main coroutine
1848 local $Coro::idle = sub { 2077 local $Coro::idle = sub {
1849 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2078 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850 (Coro::unblock_sub {
1851 Event::one_event; 2079 async { Event::one_event };
1852 })->();
1853 }; 2080 };
1854 2081
1855 cfg_load; 2082 cfg_load;
1856 db_load; 2083 db_load;
1857 load_extensions; 2084 load_extensions;
1868 return; 2095 return;
1869 } 2096 }
1870 2097
1871 warn "reloading..."; 2098 warn "reloading...";
1872 2099
1873 local $FREEZE = 1; 2100 my $guard = freeze_mainloop;
1874 cf::emergency_save; 2101 cf::emergency_save;
1875 2102
1876 eval { 2103 eval {
1877 # if anything goes wrong in here, we should simply crash as we already saved 2104 # if anything goes wrong in here, we should simply crash as we already saved
1878 2105
1965 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2192 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2193 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1967 2194
1968 # dirty hack because... archetypes are not yet loaded 2195 # dirty hack because... archetypes are not yet loaded
1969 Event->timer ( 2196 Event->timer (
1970 after => 2, 2197 after => 10,
1971 cb => sub { 2198 cb => sub {
1972 $_[0]->w->cancel; 2199 $_[0]->w->cancel;
1973 2200
1974 # provide some exits "home" 2201 # provide some exits "home"
1975 my $exit = cf::object::new "exit"; 2202 my $exit = cf::object::new "exit";
2014 reentrant => 0, 2241 reentrant => 0,
2015 prio => 0, 2242 prio => 0,
2016 at => $NEXT_TICK || $TICK, 2243 at => $NEXT_TICK || $TICK,
2017 data => WF_AUTOCANCEL, 2244 data => WF_AUTOCANCEL,
2018 cb => sub { 2245 cb => sub {
2019 unless ($FREEZE) {
2020 cf::server_tick; # one server iteration 2246 cf::server_tick; # one server iteration
2021 $RUNTIME += $TICK; 2247 $RUNTIME += $TICK;
2022 }
2023
2024 $NEXT_TICK += $TICK; 2248 $NEXT_TICK += $TICK;
2025 2249
2026 # if we are delayed by four ticks or more, skip them all 2250 # if we are delayed by four ticks or more, skip them all
2027 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2251 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2028 2252
2051 or warn "ERROR: unable to write runtime file: $!"; 2275 or warn "ERROR: unable to write runtime file: $!";
2052 })->(); 2276 })->();
2053 }, 2277 },
2054); 2278);
2055 2279
2280END { cf::emergency_save }
2281
20561 22821
2057 2283

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