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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.109 by root, Sun Dec 31 22:23:12 2006 UTC vs.
Revision 1.137 by root, Fri Jan 5 10:23:05 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;
49our $UPTIME; $UPTIME ||= time; 49our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 50our $RUNTIME;
51 51
52our %MAP; # all maps 52our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 53our $LINK_MAP; # the special {link} map
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 54our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 55our %EXT_CORO;
57 56
58binmode STDOUT; 57binmode STDOUT;
59binmode STDERR; 58binmode STDERR;
71mkdir cf::localdir . "/" . cf::uniquedir; 70mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 71mkdir $RANDOM_MAPS;
73 72
74# a special map that is always available 73# a special map that is always available
75our $LINK_MAP; 74our $LINK_MAP;
75our $EMERGENCY_POSITION;
76 76
77############################################################################# 77#############################################################################
78 78
79=head2 GLOBAL VARIABLES 79=head2 GLOBAL VARIABLES
80 80
179sub to_json($) { 179sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 181 JSON::Syck::Dump $_[0]
182} 182}
183 183
184=item cf::lock_wait $string
185
186Wait until the given lock is available. See cf::lock_acquire.
187
188=item my $lock = cf::lock_acquire $string
189
190Wait until the given lock is available and then acquires it and returns
191a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192for example when the coroutine gets canceled), the lock is automatically
193returned.
194
195Lock names should begin with a unique identifier (for example, cf::map::find
196uses map_find and cf::map::load uses map_load).
197
198=cut
199
200our %LOCK;
201
202sub lock_wait($) {
203 my ($key) = @_;
204
205 # wait for lock, if any
206 while ($LOCK{$key}) {
207 push @{ $LOCK{$key} }, $Coro::current;
208 Coro::schedule;
209 }
210}
211
212sub lock_acquire($) {
213 my ($key) = @_;
214
215 # wait, to be sure we are not locked
216 lock_wait $key;
217
218 $LOCK{$key} = [];
219
220 Coro::guard {
221 # wake up all waiters, to be on the safe side
222 $_->ready for @{ delete $LOCK{$key} };
223 }
224}
225
226=item cf::async { BLOCK }
227
228Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229error instead of exiting the server in case of a problem.
230
231=cut
232
233sub async(&) {
234 my ($cb) = @_;
235
236 Coro::async {
237 eval { $cb->() };
238 warn $@ if $@;
239 }
240}
241
242sub freeze_mainloop {
243 return unless $TICK_WATCHER->is_active;
244
245 my $guard = Coro::guard { $TICK_WATCHER->start };
246 $TICK_WATCHER->stop;
247 $guard
248}
249
184=item cf::sync_job { BLOCK } 250=item cf::sync_job { BLOCK }
185 251
186The design of crossfire+ requires that the main coro ($Coro::main) is 252The design of crossfire+ requires that the main coro ($Coro::main) is
187always able to handle events or runnable, as crossfire+ is only partly 253always able to handle events or runnable, as crossfire+ is only partly
188reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 254reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
195=cut 261=cut
196 262
197sub sync_job(&) { 263sub sync_job(&) {
198 my ($job) = @_; 264 my ($job) = @_;
199 265
200 my $busy = 1;
201 my @res;
202
203 # TODO: use suspend/resume instead
204 local $FREEZE = 1;
205
206 my $coro = Coro::async {
207 @res = eval { $job->() };
208 warn $@ if $@;
209 undef $busy;
210 };
211
212 if ($Coro::current == $Coro::main) { 266 if ($Coro::current == $Coro::main) {
267 # this is the main coro, too bad, we have to block
268 # till the operation succeeds, freezing the server :/
269
270 # TODO: use suspend/resume instead
271 # (but this is cancel-safe)
272 my $freeze_guard = freeze_mainloop;
273
274 my $busy = 1;
275 my @res;
276
277 (Coro::async {
278 @res = eval { $job->() };
279 warn $@ if $@;
280 undef $busy;
213 $coro->prio (Coro::PRIO_MAX); 281 })->prio (Coro::PRIO_MAX);
282
214 while ($busy) { 283 while ($busy) {
215 Coro::cede_notself; 284 Coro::cede_notself;
216 Event::one_event unless Coro::nready; 285 Event::one_event unless Coro::nready;
217 } 286 }
287
288 wantarray ? @res : $res[0]
218 } else { 289 } else {
219 $coro->join; 290 # we are in another coroutine, how wonderful, everything just works
291
292 $job->()
220 } 293 }
221
222 wantarray ? @res : $res[0]
223} 294}
224 295
225=item $coro = cf::coro { BLOCK } 296=item $coro = cf::coro { BLOCK }
226 297
227Creates and returns a new coro. This coro is automcatially being canceled 298Creates and returns a new coro. This coro is automcatially being canceled
230=cut 301=cut
231 302
232sub coro(&) { 303sub coro(&) {
233 my $cb = shift; 304 my $cb = shift;
234 305
235 my $coro; $coro = async { 306 my $coro = &cf::async ($cb);
236 eval {
237 $cb->();
238 };
239 warn $@ if $@;
240 };
241 307
242 $coro->on_destroy (sub { 308 $coro->on_destroy (sub {
243 delete $EXT_CORO{$coro+0}; 309 delete $EXT_CORO{$coro+0};
244 }); 310 });
245 $EXT_CORO{$coro+0} = $coro; 311 $EXT_CORO{$coro+0} = $coro;
251 my $runtime = cf::localdir . "/runtime"; 317 my $runtime = cf::localdir . "/runtime";
252 318
253 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 319 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254 or return; 320 or return;
255 321
256 my $value = $cf::RUNTIME; 322 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
257 (aio_write $fh, 0, (length $value), $value, 0) <= 0 323 (aio_write $fh, 0, (length $value), $value, 0) <= 0
258 and return; 324 and return;
259 325
260 aio_fsync $fh 326 aio_fsync $fh
261 and return; 327 and return;
278package cf::path; 344package cf::path;
279 345
280sub new { 346sub new {
281 my ($class, $path, $base) = @_; 347 my ($class, $path, $base) = @_;
282 348
349 $path = $path->as_string if ref $path;
350
283 my $self = bless { }, $class; 351 my $self = bless { }, $class;
284 352
353 # {... are special paths that are not touched
354 # ?xxx/... are special absolute paths
355 # ?random/... random maps
356 # /! non-realised random map exit
357 # /... normal maps
358 # ~/... per-player maps without a specific player (DO NOT USE)
359 # ~user/... per-player map of a specific user
360
361 if ($path =~ /^{/) {
362 # fine as it is
285 if ($path =~ s{^\?random/}{}) { 363 } elsif ($path =~ s{^\?random/}{}) {
286 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 364 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
287 $self->{random} = cf::from_json $data; 365 $self->{random} = cf::from_json $data;
288 } else { 366 } else {
289 if ($path =~ s{^~([^/]+)?}{}) { 367 if ($path =~ s{^~([^/]+)?}{}) {
290 $self->{user_rel} = 1; 368 $self->{user_rel} = 1;
795 or return; 873 or return;
796 874
797 unless (aio_stat "$filename.pst") { 875 unless (aio_stat "$filename.pst") {
798 (aio_load "$filename.pst", $av) >= 0 876 (aio_load "$filename.pst", $av) >= 0
799 or return; 877 or return;
800 $av = eval { (Storable::thaw <$av>)->{objs} }; 878 $av = eval { (Storable::thaw $av)->{objs} };
801 } 879 }
802 880
881 warn sprintf "loading %s (%d)\n",
882 $filename, length $data, scalar @{$av || []};#d#
803 return ($data, $av); 883 return ($data, $av);
804} 884}
805 885
806############################################################################# 886#############################################################################
807# command handling &c 887# command handling &c
1029 $self->send ("ext " . to_json \%msg); 1109 $self->send ("ext " . to_json \%msg);
1030} 1110}
1031 1111
1032=back 1112=back
1033 1113
1114
1115=head3 cf::map
1116
1117=over 4
1118
1119=cut
1120
1121package cf::map;
1122
1123use Fcntl;
1124use Coro::AIO;
1125
1126our $MAX_RESET = 3600;
1127our $DEFAULT_RESET = 3000;
1128
1129sub generate_random_map {
1130 my ($path, $rmp) = @_;
1131
1132 # mit "rum" bekleckern, nicht
1133 cf::map::_create_random_map
1134 $path,
1135 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138 $rmp->{exit_on_final_map},
1139 $rmp->{xsize}, $rmp->{ysize},
1140 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145 (cf::region::find $rmp->{region})
1146}
1147
1148# and all this just because we cannot iterate over
1149# all maps in C++...
1150sub change_all_map_light {
1151 my ($change) = @_;
1152
1153 $_->change_map_light ($change)
1154 for grep $_->outdoor, values %cf::MAP;
1155}
1156
1157sub try_load_header($) {
1158 my ($path) = @_;
1159
1160 utf8::encode $path;
1161 aio_open $path, O_RDONLY, 0
1162 or return;
1163
1164 my $map = cf::map::new
1165 or return;
1166
1167 # for better error messages only, will be overwritten
1168 $map->path ($path);
1169
1170 $map->load_header ($path)
1171 or return;
1172
1173 $map->{load_path} = $path;
1174
1175 $map
1176}
1177
1178sub find;
1179sub find {
1180 my ($path, $origin) = @_;
1181
1182 #warn "find<$path,$origin>\n";#d#
1183
1184 $path = new cf::path $path, $origin && $origin->path;
1185 my $key = $path->as_string;
1186
1187 cf::lock_wait "map_find:$key";
1188
1189 $cf::MAP{$key} || do {
1190 my $guard = cf::lock_acquire "map_find:$key";
1191
1192 # do it the slow way
1193 my $map = try_load_header $path->save_path;
1194
1195 Coro::cede;
1196
1197 if ($map) {
1198 $map->last_access ((delete $map->{last_access})
1199 || $cf::RUNTIME); #d#
1200 # safety
1201 $map->{instantiate_time} = $cf::RUNTIME
1202 if $map->{instantiate_time} > $cf::RUNTIME;
1203 } else {
1204 if (my $rmp = $path->random_map_params) {
1205 $map = generate_random_map $key, $rmp;
1206 } else {
1207 $map = try_load_header $path->load_path;
1208 }
1209
1210 $map or return;
1211
1212 $map->{load_original} = 1;
1213 $map->{instantiate_time} = $cf::RUNTIME;
1214 $map->last_access ($cf::RUNTIME);
1215 $map->instantiate;
1216
1217 # per-player maps become, after loading, normal maps
1218 $map->per_player (0) if $path->{user_rel};
1219 }
1220
1221 $map->path ($key);
1222 $map->{path} = $path;
1223 $map->{last_save} = $cf::RUNTIME;
1224
1225 Coro::cede;
1226
1227 if ($map->should_reset) {
1228 $map->reset;
1229 undef $guard;
1230 $map = find $path
1231 or return;
1232 }
1233
1234 $cf::MAP{$key} = $map
1235 }
1236}
1237
1238sub load {
1239 my ($self) = @_;
1240
1241 my $path = $self->{path};
1242 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1243
1244 return if $self->in_memory != cf::MAP_SWAPPED;
1245
1246 $self->in_memory (cf::MAP_LOADING);
1247
1248 $self->alloc;
1249 $self->load_objects ($self->{load_path}, 1)
1250 or return;
1251
1252 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253 if delete $self->{load_original};
1254
1255 if (my $uniq = $path->uniq_path) {
1256 utf8::encode $uniq;
1257 if (aio_open $uniq, O_RDONLY, 0) {
1258 $self->clear_unique_items;
1259 $self->load_objects ($uniq, 0);
1260 }
1261 }
1262
1263 Coro::cede;
1264
1265 # now do the right thing for maps
1266 $self->link_multipart_objects;
1267
1268 if ($self->{path}->is_style_map) {
1269 $self->{deny_save} = 1;
1270 $self->{deny_reset} = 1;
1271 } else {
1272 $self->fix_auto_apply;
1273 $self->decay_objects;
1274 $self->update_buttons;
1275 $self->set_darkness_map;
1276 $self->difficulty ($self->estimate_difficulty)
1277 unless $self->difficulty;
1278 $self->activate;
1279 }
1280
1281 Coro::cede;
1282
1283 $self->in_memory (cf::MAP_IN_MEMORY);
1284}
1285
1286sub find_sync {
1287 my ($path, $origin) = @_;
1288
1289 cf::sync_job { cf::map::find $path, $origin }
1290}
1291
1292sub do_load_sync {
1293 my ($map) = @_;
1294
1295 cf::sync_job { $map->load };
1296}
1297
1298sub save {
1299 my ($self) = @_;
1300
1301 my $lock = cf::lock_acquire "map_data:" . $self->path;
1302
1303 $self->{last_save} = $cf::RUNTIME;
1304
1305 return unless $self->dirty;
1306
1307 my $save = $self->{path}->save_path; utf8::encode $save;
1308 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1309
1310 $self->{load_path} = $save;
1311
1312 return if $self->{deny_save};
1313
1314 local $self->{last_access} = $self->last_access;#d#
1315
1316 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES);
1319 } else {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321 }
1322}
1323
1324sub swap_out {
1325 my ($self) = @_;
1326
1327 # save first because save cedes
1328 $self->save;
1329
1330 my $lock = cf::lock_acquire "map_data:" . $self->path;
1331
1332 return if $self->players;
1333 return if $self->in_memory != cf::MAP_IN_MEMORY;
1334 return if $self->{deny_save};
1335
1336 $self->clear;
1337 $self->in_memory (cf::MAP_SWAPPED);
1338}
1339
1340sub reset_at {
1341 my ($self) = @_;
1342
1343 # TODO: safety, remove and allow resettable per-player maps
1344 return 1e99 if $self->{path}{user_rel};
1345 return 1e99 if $self->{deny_reset};
1346
1347 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349
1350 $time + $to
1351}
1352
1353sub should_reset {
1354 my ($self) = @_;
1355
1356 $self->reset_at <= $cf::RUNTIME
1357}
1358
1359sub unlink_save {
1360 my ($self) = @_;
1361
1362 utf8::encode (my $save = $self->{path}->save_path);
1363 aioreq_pri 3; IO::AIO::aio_unlink $save;
1364 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365}
1366
1367sub rename {
1368 my ($self, $new_path) = @_;
1369
1370 $self->unlink_save;
1371
1372 delete $cf::MAP{$self->path};
1373 $self->{path} = new cf::path $new_path;
1374 $self->path ($self->{path}->as_string);
1375 $cf::MAP{$self->path} = $self;
1376
1377 $self->save;
1378}
1379
1380sub reset {
1381 my ($self) = @_;
1382
1383 my $lock = cf::lock_acquire "map_data:" . $self->path;
1384
1385 return if $self->players;
1386 return if $self->{path}{user_rel};#d#
1387
1388 warn "resetting map ", $self->path;#d#
1389
1390 delete $cf::MAP{$self->path};
1391
1392 $_->clear_links_to ($self) for values %cf::MAP;
1393
1394 $self->unlink_save;
1395 $self->destroy;
1396}
1397
1398my $nuke_counter = "aaaa";
1399
1400sub nuke {
1401 my ($self) = @_;
1402
1403 $self->{deny_save} = 1;
1404 $self->reset_timeout (1);
1405 $self->rename ("{nuke}/" . ($nuke_counter++));
1406 $self->reset; # polite request, might not happen
1407}
1408
1409sub customise_for {
1410 my ($map, $ob) = @_;
1411
1412 if ($map->per_player) {
1413 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1414 }
1415
1416 $map
1417}
1418
1419sub emergency_save {
1420 my $freeze_guard = cf::freeze_mainloop;
1421
1422 warn "enter emergency map save\n";
1423
1424 cf::sync_job {
1425 warn "begin emergency map save\n";
1426 $_->save for values %cf::MAP;
1427 };
1428
1429 warn "end emergency map save\n";
1430}
1431
1432package cf;
1433
1434=back
1435
1436
1034=head3 cf::object::player 1437=head3 cf::object::player
1035 1438
1036=over 4 1439=over 4
1037 1440
1038=item $player_object->reply ($npc, $msg[, $flags]) 1441=item $player_object->reply ($npc, $msg[, $flags])
1073 (ref $cf::CFG{"may_$access"} 1476 (ref $cf::CFG{"may_$access"}
1074 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1477 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1075 : $cf::CFG{"may_$access"}) 1478 : $cf::CFG{"may_$access"})
1076} 1479}
1077 1480
1481=item $player_object->enter_link
1482
1483Freezes the player and moves him/her to a special map (C<{link}>).
1484
1485The player should be reaosnably safe there for short amounts of time. You
1486I<MUST> call C<leave_link> as soon as possible, though.
1487
1488=item $player_object->leave_link ($map, $x, $y)
1489
1490Moves the player out of the specila link map onto the given map. If the
1491map is not valid (or omitted), the player will be moved back to the
1492location he/she was before the call to C<enter_link>, or, if that fails,
1493to the emergency map position.
1494
1495Might block.
1496
1497=cut
1498
1499sub cf::object::player::enter_link {
1500 my ($self) = @_;
1501
1502 $self->deactivate_recursive;
1503
1504 return if $self->map == $LINK_MAP;
1505
1506 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507 if $self->map;
1508
1509 $self->enter_map ($LINK_MAP, 20, 20);
1510}
1511
1512sub cf::object::player::leave_link {
1513 my ($self, $map, $x, $y) = @_;
1514
1515 my $link_pos = delete $self->{_link_pos};
1516
1517 unless ($map) {
1518 # restore original map position
1519 ($map, $x, $y) = @{ $link_pos || [] };
1520 $map = cf::map::find $map;
1521
1522 unless ($map) {
1523 ($map, $x, $y) = @$EMERGENCY_POSITION;
1524 $map = cf::map::find $map
1525 or die "FATAL: cannot load emergency map\n";
1526 }
1527 }
1528
1529 ($x, $y) = (-1, -1)
1530 unless (defined $x) && (defined $y);
1531
1532 # use -1 or undef as default coordinates, not 0, 0
1533 ($x, $y) = ($map->enter_x, $map->enter_y)
1534 if $x <=0 && $y <= 0;
1535
1536 $map->load;
1537
1538 $self->activate_recursive;
1539 $self->enter_map ($map, $x, $y);
1540}
1541
1542cf::player->attach (
1543 on_logout => sub {
1544 my ($pl) = @_;
1545
1546 # abort map switching before logout
1547 if ($pl->ob->{_link_pos}) {
1548 cf::sync_job {
1549 $pl->ob->leave_link
1550 };
1551 }
1552 },
1553 on_login => sub {
1554 my ($pl) = @_;
1555
1556 # try to abort aborted map switching on player login :)
1557 # should happen only on crashes
1558 if ($pl->ob->{_link_pos}) {
1559 $pl->ob->enter_link;
1560 cf::async {
1561 # we need this sleep as the login has a concurrent enter_exit running
1562 # and this sleep increases chances of the player not ending up in scorn
1563 Coro::Timer::sleep 1;
1564 $pl->ob->leave_link;
1565 };
1566 }
1567 },
1568);
1569
1570=item $player_object->goto ($path, $x, $y)
1571
1572=cut
1573
1574sub cf::object::player::goto {
1575 my ($self, $path, $x, $y) = @_;
1576
1577 $self->enter_link;
1578
1579 (cf::async {
1580 $path = new cf::path $path;
1581
1582 my $map = cf::map::find $path->as_string;
1583 $map = $map->customise_for ($self) if $map;
1584
1585# warn "entering ", $map->path, " at ($x, $y)\n"
1586# if $map;
1587
1588 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1589
1590 $self->leave_link ($map, $x, $y);
1591 })->prio (1);
1592}
1593
1594=item $player_object->enter_exit ($exit_object)
1595
1596=cut
1597
1598sub parse_random_map_params {
1599 my ($spec) = @_;
1600
1601 my $rmp = { # defaults
1602 xsize => 10,
1603 ysize => 10,
1604 };
1605
1606 for (split /\n/, $spec) {
1607 my ($k, $v) = split /\s+/, $_, 2;
1608
1609 $rmp->{lc $k} = $v if (length $k) && (length $v);
1610 }
1611
1612 $rmp
1613}
1614
1615sub prepare_random_map {
1616 my ($exit) = @_;
1617
1618 # all this does is basically replace the /! path by
1619 # a new random map path (?random/...) with a seed
1620 # that depends on the exit object
1621
1622 my $rmp = parse_random_map_params $exit->msg;
1623
1624 if ($exit->map) {
1625 $rmp->{region} = $exit->map->region_name;
1626 $rmp->{origin_map} = $exit->map->path;
1627 $rmp->{origin_x} = $exit->x;
1628 $rmp->{origin_y} = $exit->y;
1629 }
1630
1631 $rmp->{random_seed} ||= $exit->random_seed;
1632
1633 my $data = cf::to_json $rmp;
1634 my $md5 = Digest::MD5::md5_hex $data;
1635
1636 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1637 aio_write $fh, 0, (length $data), $data, 0;
1638
1639 $exit->slaying ("?random/$md5");
1640 $exit->msg (undef);
1641 }
1642}
1643
1644sub cf::object::player::enter_exit {
1645 my ($self, $exit) = @_;
1646
1647 return unless $self->type == cf::PLAYER;
1648
1649 $self->enter_link;
1650
1651 (cf::async {
1652 $self->deactivate_recursive; # just to be sure
1653 unless (eval {
1654 prepare_random_map $exit
1655 if $exit->slaying eq "/!";
1656
1657 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659
1660 1;
1661 }) {
1662 $self->message ("Something went wrong deep within the crossfire server. "
1663 . "I'll try to bring you back to the map you were before. "
1664 . "Please report this to the dungeon master",
1665 cf::NDI_UNIQUE | cf::NDI_RED);
1666
1667 warn "ERROR in enter_exit: $@";
1668 $self->leave_link;
1669 }
1670 })->prio (1);
1671}
1672
1078=head3 cf::client 1673=head3 cf::client
1079 1674
1080=over 4 1675=over 4
1081 1676
1082=item $client->send_drawinfo ($text, $flags) 1677=item $client->send_drawinfo ($text, $flags)
1125 on_reply => sub { 1720 on_reply => sub {
1126 my ($ns, $msg) = @_; 1721 my ($ns, $msg) = @_;
1127 1722
1128 # this weird shuffling is so that direct followup queries 1723 # this weird shuffling is so that direct followup queries
1129 # get handled first 1724 # get handled first
1130 my $queue = delete $ns->{query_queue}; 1725 my $queue = delete $ns->{query_queue}
1726 or return; # be conservative, not sure how that can happen, but we saw a crash here
1131 1727
1132 (shift @$queue)->[1]->($msg); 1728 (shift @$queue)->[1]->($msg);
1133 1729
1134 push @{ $ns->{query_queue} }, @$queue; 1730 push @{ $ns->{query_queue} }, @$queue;
1135 1731
1152=cut 1748=cut
1153 1749
1154sub cf::client::coro { 1750sub cf::client::coro {
1155 my ($self, $cb) = @_; 1751 my ($self, $cb) = @_;
1156 1752
1157 my $coro; $coro = async { 1753 my $coro = &cf::async ($cb);
1158 eval {
1159 $cb->();
1160 };
1161 warn $@ if $@;
1162 };
1163 1754
1164 $coro->on_destroy (sub { 1755 $coro->on_destroy (sub {
1165 delete $self->{_coro}{$coro+0}; 1756 delete $self->{_coro}{$coro+0};
1166 }); 1757 });
1167 1758
1339 1930
1340{ 1931{
1341 my $path = cf::localdir . "/database.pst"; 1932 my $path = cf::localdir . "/database.pst";
1342 1933
1343 sub db_load() { 1934 sub db_load() {
1344 warn "loading database $path\n";#d# remove later
1345 $DB = stat $path ? Storable::retrieve $path : { }; 1935 $DB = stat $path ? Storable::retrieve $path : { };
1346 } 1936 }
1347 1937
1348 my $pid; 1938 my $pid;
1349 1939
1350 sub db_save() { 1940 sub db_save() {
1351 warn "saving database $path\n";#d# remove later
1352 waitpid $pid, 0 if $pid; 1941 waitpid $pid, 0 if $pid;
1353 if (0 == ($pid = fork)) { 1942 if (0 == ($pid = fork)) {
1354 $DB->{_meta}{version} = 1; 1943 $DB->{_meta}{version} = 1;
1355 Storable::nstore $DB, "$path~"; 1944 Storable::nstore $DB, "$path~";
1356 rename "$path~", $path; 1945 rename "$path~", $path;
1404 open my $fh, "<:utf8", cf::confdir . "/config" 1993 open my $fh, "<:utf8", cf::confdir . "/config"
1405 or return; 1994 or return;
1406 1995
1407 local $/; 1996 local $/;
1408 *CFG = YAML::Syck::Load <$fh>; 1997 *CFG = YAML::Syck::Load <$fh>;
1998
1999 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000
2001 if (exists $CFG{mlockall}) {
2002 eval {
2003 $CFG{mlockall} ? &mlockall : &munlockall
2004 and die "WARNING: m(un)lockall failed: $!\n";
2005 };
2006 warn $@ if $@;
2007 }
1409} 2008}
1410 2009
1411sub main { 2010sub main {
1412 # we must not ever block the main coroutine 2011 # we must not ever block the main coroutine
1413 local $Coro::idle = sub { 2012 local $Coro::idle = sub {
1414 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2013 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1415 (Coro::unblock_sub { 2014 (Coro::unblock_sub {
1416 Event::one_event; 2015 Event::one_event;
1417 })->(); 2016 })->();
1418 }; 2017 };
1419 2018
1424} 2023}
1425 2024
1426############################################################################# 2025#############################################################################
1427# initialisation 2026# initialisation
1428 2027
1429sub perl_reload() { 2028sub reload() {
1430 # can/must only be called in main 2029 # can/must only be called in main
1431 if ($Coro::current != $Coro::main) { 2030 if ($Coro::current != $Coro::main) {
1432 warn "can only reload from main coroutine\n"; 2031 warn "can only reload from main coroutine\n";
1433 return; 2032 return;
1434 } 2033 }
1435 2034
1436 warn "reloading..."; 2035 warn "reloading...";
1437 2036
1438 local $FREEZE = 1; 2037 my $guard = freeze_mainloop;
1439 cf::emergency_save; 2038 cf::emergency_save;
1440 2039
1441 eval { 2040 eval {
1442 # if anything goes wrong in here, we should simply crash as we already saved 2041 # if anything goes wrong in here, we should simply crash as we already saved
1443 2042
1527 $LINK_MAP->height (41); 2126 $LINK_MAP->height (41);
1528 $LINK_MAP->alloc; 2127 $LINK_MAP->alloc;
1529 $LINK_MAP->path ("{link}"); 2128 $LINK_MAP->path ("{link}");
1530 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2129 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1531 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2130 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132 # dirty hack because... archetypes are not yet loaded
2133 Event->timer (
2134 after => 2,
2135 cb => sub {
2136 $_[0]->w->cancel;
2137
2138 # provide some exits "home"
2139 my $exit = cf::object::new "exit";
2140
2141 $exit->slaying ($EMERGENCY_POSITION->[0]);
2142 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145 $LINK_MAP->insert ($exit->clone, 19, 19);
2146 $LINK_MAP->insert ($exit->clone, 19, 20);
2147 $LINK_MAP->insert ($exit->clone, 19, 21);
2148 $LINK_MAP->insert ($exit->clone, 20, 19);
2149 $LINK_MAP->insert ($exit->clone, 20, 21);
2150 $LINK_MAP->insert ($exit->clone, 21, 19);
2151 $LINK_MAP->insert ($exit->clone, 21, 20);
2152 $LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154 $exit->destroy;
2155 });
2156
2157 $LINK_MAP->{deny_save} = 1;
2158 $LINK_MAP->{deny_reset} = 1;
2159
2160 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1532} 2161}
1533 2162
1534register "<global>", __PACKAGE__; 2163register "<global>", __PACKAGE__;
1535 2164
1536register_command "perl-reload" => sub { 2165register_command "reload" => sub {
1537 my ($who, $arg) = @_; 2166 my ($who, $arg) = @_;
1538 2167
1539 if ($who->flag (FLAG_WIZ)) { 2168 if ($who->flag (FLAG_WIZ)) {
1540 $who->message ("start of reload."); 2169 $who->message ("start of reload.");
1541 perl_reload; 2170 reload;
1542 $who->message ("end of reload."); 2171 $who->message ("end of reload.");
1543 } 2172 }
1544}; 2173};
1545 2174
1546unshift @INC, $LIBDIR; 2175unshift @INC, $LIBDIR;
1549 reentrant => 0, 2178 reentrant => 0,
1550 prio => 0, 2179 prio => 0,
1551 at => $NEXT_TICK || $TICK, 2180 at => $NEXT_TICK || $TICK,
1552 data => WF_AUTOCANCEL, 2181 data => WF_AUTOCANCEL,
1553 cb => sub { 2182 cb => sub {
1554 unless ($FREEZE) {
1555 cf::server_tick; # one server iteration 2183 cf::server_tick; # one server iteration
1556 $RUNTIME += $TICK; 2184 $RUNTIME += $TICK;
1557 }
1558
1559 $NEXT_TICK += $TICK; 2185 $NEXT_TICK += $TICK;
1560 2186
1561 # if we are delayed by four ticks or more, skip them all 2187 # if we are delayed by four ticks or more, skip them all
1562 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2188 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1563 2189
1586 or warn "ERROR: unable to write runtime file: $!"; 2212 or warn "ERROR: unable to write runtime file: $!";
1587 })->(); 2213 })->();
1588 }, 2214 },
1589); 2215);
1590 2216
2217END { cf::emergency_save }
2218
15911 22191
1592 2220

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