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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 1.128 by root, Wed Jan 3 00:28:47 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;
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
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
76 78
77############################################################################# 79#############################################################################
78 80
79=head2 GLOBAL VARIABLES 81=head2 GLOBAL VARIABLES
80 82
179sub to_json($) { 181sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 183 JSON::Syck::Dump $_[0]
182} 184}
183 185
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string
209
210Wait until the given lock is available. See cf::lock_acquire.
211
212=item my $lock = cf::lock_acquire $string
213
214Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically
217returned.
218
219Lock names should begin with a unique identifier (for example, find_map
220uses map_find and load_map uses map_load).
221
222=cut
223
224our %LOCK;
225
226sub lock_wait($) {
227 my ($key) = @_;
228
229 # wait for lock, if any
230 while ($LOCK{$key}) {
231 push @{ $LOCK{$key} }, $Coro::current;
232 Coro::schedule;
233 }
234}
235
236sub lock_acquire($) {
237 my ($key) = @_;
238
239 # wait, to be sure we are not locked
240 lock_wait $key;
241
242 $LOCK{$key} = [];
243
244 cf::guard {
245 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} };
247 }
248}
249
250=item cf::async { BLOCK }
251
252Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
253error instead of exiting the server in case of a problem.
254
255=cut
256
257sub async(&) {
258 my ($cb) = @_;
259
260 Coro::async {
261 eval { $cb->() };
262 warn $@ if $@;
263 }
264}
265
184=item cf::sync_job { BLOCK } 266=item cf::sync_job { BLOCK }
185 267
186The design of crossfire+ requires that the main coro ($Coro::main) is 268The design of crossfire+ requires that the main coro ($Coro::main) is
187always able to handle events or runnable, as crossfire+ is only partly 269always able to handle events or runnable, as crossfire+ is only partly
188reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 270reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
195=cut 277=cut
196 278
197sub sync_job(&) { 279sub sync_job(&) {
198 my ($job) = @_; 280 my ($job) = @_;
199 281
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 == $Coro::main) { 282 if ($Coro::current == $Coro::main) {
283 # this is the main coro, too bad, we have to block
284 # till the operation succeeds, freezing the server :/
285
286 # TODO: use suspend/resume instead
287 # (but this is cancel-safe)
288 local $FREEZE = 1;
289
290 my $busy = 1;
291 my @res;
292
293 (Coro::async {
294 @res = eval { $job->() };
295 warn $@ if $@;
296 undef $busy;
213 $coro->prio (Coro::PRIO_MAX); 297 })->prio (Coro::PRIO_MAX);
298
214 while ($busy) { 299 while ($busy) {
215 Coro::cede_notself; 300 Coro::cede_notself;
216 Event::one_event unless Coro::nready; 301 Event::one_event unless Coro::nready;
217 } 302 }
303
304 wantarray ? @res : $res[0]
218 } else { 305 } else {
219 $coro->join; 306 # we are in another coroutine, how wonderful, everything just works
307
308 $job->()
220 } 309 }
221
222 wantarray ? @res : $res[0]
223} 310}
224 311
225=item $coro = cf::coro { BLOCK } 312=item $coro = cf::coro { BLOCK }
226 313
227Creates and returns a new coro. This coro is automcatially being canceled 314Creates and returns a new coro. This coro is automcatially being canceled
230=cut 317=cut
231 318
232sub coro(&) { 319sub coro(&) {
233 my $cb = shift; 320 my $cb = shift;
234 321
235 my $coro; $coro = async { 322 my $coro = &cf::async ($cb);
236 eval {
237 $cb->();
238 };
239 warn $@ if $@;
240 };
241 323
242 $coro->on_destroy (sub { 324 $coro->on_destroy (sub {
243 delete $EXT_CORO{$coro+0}; 325 delete $EXT_CORO{$coro+0};
244 }); 326 });
245 $EXT_CORO{$coro+0} = $coro; 327 $EXT_CORO{$coro+0} = $coro;
251 my $runtime = cf::localdir . "/runtime"; 333 my $runtime = cf::localdir . "/runtime";
252 334
253 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254 or return; 336 or return;
255 337
256 my $value = $cf::RUNTIME; 338 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) <= 0 339 (aio_write $fh, 0, (length $value), $value, 0) <= 0
258 and return; 340 and return;
259 341
260 aio_fsync $fh 342 aio_fsync $fh
261 and return; 343 and return;
278package cf::path; 360package cf::path;
279 361
280sub new { 362sub new {
281 my ($class, $path, $base) = @_; 363 my ($class, $path, $base) = @_;
282 364
365 $path = $path->as_string if ref $path;
366
283 my $self = bless { }, $class; 367 my $self = bless { }, $class;
284 368
369 # {... are special paths that are not touched
370 # ?xxx/... are special absolute paths
371 # ?random/... random maps
372 # /! non-realised random map exit
373 # /... normal maps
374 # ~/... per-player maps without a specific player (DO NOT USE)
375 # ~user/... per-player map of a specific user
376
377 if ($path =~ /^{/) {
378 # fine as it is
285 if ($path =~ s{^\?random/}{}) { 379 } elsif ($path =~ s{^\?random/}{}) {
286 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 380 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
287 $self->{random} = cf::from_json $data; 381 $self->{random} = cf::from_json $data;
288 } else { 382 } else {
289 if ($path =~ s{^~([^/]+)?}{}) { 383 if ($path =~ s{^~([^/]+)?}{}) {
290 $self->{user_rel} = 1; 384 $self->{user_rel} = 1;
795 or return; 889 or return;
796 890
797 unless (aio_stat "$filename.pst") { 891 unless (aio_stat "$filename.pst") {
798 (aio_load "$filename.pst", $av) >= 0 892 (aio_load "$filename.pst", $av) >= 0
799 or return; 893 or return;
800 $av = eval { (Storable::thaw <$av>)->{objs} }; 894 $av = eval { (Storable::thaw $av)->{objs} };
801 } 895 }
802 896
897 warn sprintf "loading %s (%d)\n",
898 $filename, length $data, scalar @{$av || []};#d#
803 return ($data, $av); 899 return ($data, $av);
804} 900}
805 901
806############################################################################# 902#############################################################################
807# command handling &c 903# command handling &c
1029 $self->send ("ext " . to_json \%msg); 1125 $self->send ("ext " . to_json \%msg);
1030} 1126}
1031 1127
1032=back 1128=back
1033 1129
1130
1131=head3 cf::map
1132
1133=over 4
1134
1135=cut
1136
1137package cf::map;
1138
1139use Fcntl;
1140use Coro::AIO;
1141
1142our $MAX_RESET = 7200;
1143our $DEFAULT_RESET = 3600;
1144
1145sub generate_random_map {
1146 my ($path, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (cf::region::find $rmp->{region})
1162}
1163
1164# and all this just because we cannot iterate over
1165# all maps in C++...
1166sub change_all_map_light {
1167 my ($change) = @_;
1168
1169 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP;
1171}
1172
1173sub try_load_header($) {
1174 my ($path) = @_;
1175
1176 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0
1178 or return;
1179
1180 my $map = cf::map::new
1181 or return;
1182
1183 $map->load_header ($path)
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189}
1190
1191sub find_map;
1192sub find_map {
1193 my ($path, $origin) = @_;
1194
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199
1200 cf::lock_wait "map_find:$key";
1201
1202 $cf::MAP{$key} || do {
1203 my $guard = cf::lock_acquire "map_find:$key";
1204
1205 # do it the slow way
1206 my $map = try_load_header $path->save_path;
1207
1208 if ($map) {
1209 # safety
1210 $map->{instantiate_time} = $cf::RUNTIME
1211 if $map->{instantiate_time} > $cf::RUNTIME;
1212 } else {
1213 if (my $rmp = $path->random_map_params) {
1214 $map = generate_random_map $key, $rmp;
1215 } else {
1216 $map = try_load_header $path->load_path;
1217 }
1218
1219 $map or return;
1220
1221 $map->{load_original} = 1;
1222 $map->{instantiate_time} = $cf::RUNTIME;
1223 $map->instantiate;
1224
1225 # per-player maps become, after loading, normal maps
1226 $map->per_player (0) if $path->{user_rel};
1227 }
1228
1229 $map->path ($key);
1230 $map->{path} = $path;
1231 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233
1234 if ($map->should_reset) {
1235 $map->reset;
1236 undef $guard;
1237 $map = find_map $path
1238 or return;
1239 }
1240
1241 $cf::MAP{$key} = $map
1242 }
1243}
1244
1245sub load {
1246 my ($self) = @_;
1247
1248 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1250
1251 return if $self->in_memory != cf::MAP_SWAPPED;
1252
1253 $self->in_memory (cf::MAP_LOADING);
1254
1255 $self->alloc;
1256 $self->load_objects ($self->{load_path}, 1)
1257 or return;
1258
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original};
1261
1262 if (my $uniq = $path->uniq_path) {
1263 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0);
1267 }
1268 }
1269
1270 # now do the right thing for maps
1271 $self->link_multipart_objects;
1272
1273 if ($self->{path}->is_style_map) {
1274 $self->{deny_save} = 1;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons;
1280 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty;
1283 $self->activate;
1284 }
1285
1286 $self->in_memory (cf::MAP_IN_MEMORY);
1287}
1288
1289sub load_map_sync {
1290 my ($path, $origin) = @_;
1291
1292 #warn "load_map_sync<$path, $origin>\n";#d#
1293
1294 cf::sync_job {
1295 my $map = cf::map::find_map $path, $origin
1296 or return;
1297 $map->load;
1298 $map
1299 }
1300}
1301
1302sub save {
1303 my ($self) = @_;
1304
1305 $self->{last_save} = $cf::RUNTIME;
1306
1307 return unless $self->dirty;
1308
1309 my $save = $self->{path}->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1311
1312 $self->{load_path} = $save;
1313
1314 return if $self->{deny_save};
1315
1316 if ($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 return if $self->players;
1328 return if $self->in_memory != cf::MAP_IN_MEMORY;
1329 return if $self->{deny_save};
1330
1331 $self->save;
1332 $self->clear;
1333 $self->in_memory (cf::MAP_SWAPPED);
1334}
1335
1336sub reset_at {
1337 my ($self) = @_;
1338
1339 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel};
1341 return 1e99 if $self->{deny_reset};
1342
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345
1346 $time + $to
1347}
1348
1349sub should_reset {
1350 my ($self) = @_;
1351
1352 $self->reset_at <= $cf::RUNTIME
1353}
1354
1355sub unlink_save {
1356 my ($self) = @_;
1357
1358 utf8::encode (my $save = $self->{path}->save_path);
1359 aioreq_pri 3; IO::AIO::aio_unlink $save;
1360 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361}
1362
1363sub rename {
1364 my ($self, $new_path) = @_;
1365
1366 $self->unlink_save;
1367
1368 delete $cf::MAP{$self->path};
1369 $self->{path} = new cf::path $new_path;
1370 $self->path ($self->{path}->as_string);
1371 $cf::MAP{$self->path} = $self;
1372
1373 $self->save;
1374}
1375
1376sub reset {
1377 my ($self) = @_;
1378
1379 return if $self->players;
1380 return if $self->{path}{user_rel};#d#
1381
1382 warn "resetting map ", $self->path;#d#
1383
1384 delete $cf::MAP{$self->path};
1385
1386 $_->clear_links_to ($self) for values %cf::MAP;
1387
1388 $self->unlink_save;
1389 $self->destroy;
1390}
1391
1392my $nuke_counter = "aaaa";
1393
1394sub nuke {
1395 my ($self) = @_;
1396
1397 $self->{deny_save} = 1;
1398 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++));
1400 $self->reset; # polite request, might not happen
1401}
1402
1403sub customise_for {
1404 my ($map, $ob) = @_;
1405
1406 if ($map->per_player) {
1407 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
1408 }
1409
1410 $map
1411}
1412
1413sub emergency_save {
1414 local $cf::FREEZE = 1;
1415
1416 warn "enter emergency map save\n";
1417
1418 cf::sync_job {
1419 warn "begin emergency map save\n";
1420 $_->save for values %cf::MAP;
1421 };
1422
1423 warn "end emergency map save\n";
1424}
1425
1426package cf;
1427
1428=back
1429
1430
1034=head3 cf::object::player 1431=head3 cf::object::player
1035 1432
1036=over 4 1433=over 4
1037 1434
1038=item $player_object->reply ($npc, $msg[, $flags]) 1435=item $player_object->reply ($npc, $msg[, $flags])
1073 (ref $cf::CFG{"may_$access"} 1470 (ref $cf::CFG{"may_$access"}
1074 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1471 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1075 : $cf::CFG{"may_$access"}) 1472 : $cf::CFG{"may_$access"})
1076} 1473}
1077 1474
1475=item $player_object->enter_link
1476
1477Freezes the player and moves him/her to a special map (C<{link}>).
1478
1479The player should be reaosnably safe there for short amounts of time. You
1480I<MUST> call C<leave_link> as soon as possible, though.
1481
1482=item $player_object->leave_link ($map, $x, $y)
1483
1484Moves the player out of the specila link map onto the given map. If the
1485map is not valid (or omitted), the player will be moved back to the
1486location he/she was before the call to C<enter_link>, or, if that fails,
1487to the emergency map position.
1488
1489Might block.
1490
1491=cut
1492
1493sub cf::object::player::enter_link {
1494 my ($self) = @_;
1495
1496 $self->deactivate_recursive;
1497
1498 return if $self->map == $LINK_MAP;
1499
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map;
1502
1503 $self->enter_map ($LINK_MAP, 20, 20);
1504}
1505
1506sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_;
1508
1509 my $link_pos = delete $self->{_link_pos};
1510
1511 unless ($map) {
1512 # restore original map position
1513 ($map, $x, $y) = @{ $link_pos || [] };
1514 $map = cf::map::find_map $map;
1515
1516 unless ($map) {
1517 ($map, $x, $y) = @$EMERGENCY_POSITION;
1518 $map = cf::map::find_map $map
1519 or die "FATAL: cannot load emergency map\n";
1520 }
1521 }
1522
1523 ($x, $y) = (-1, -1)
1524 unless (defined $x) && (defined $y);
1525
1526 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0;
1529
1530 $map->load;
1531
1532 $self->activate_recursive;
1533 $self->enter_map ($map, $x, $y);
1534}
1535
1536cf::player->attach (
1537 on_logout => sub {
1538 my ($pl) = @_;
1539
1540 # abort map switching before logout
1541 if ($pl->ob->{_link_pos}) {
1542 cf::sync_job {
1543 $pl->ob->leave_link
1544 };
1545 }
1546 },
1547 on_login => sub {
1548 my ($pl) = @_;
1549
1550 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link;
1554 cf::async {
1555 # we need this sleep as the login has a concurrent enter_exit running
1556 # and this sleep increases chances of the player not ending up in scorn
1557 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link;
1559 };
1560 }
1561 },
1562);
1563
1564=item $player_object->goto_map ($path, $x, $y)
1565
1566=cut
1567
1568sub cf::object::player::goto_map {
1569 my ($self, $path, $x, $y) = @_;
1570
1571 $self->enter_link;
1572
1573 (cf::async {
1574 $path = new cf::path $path;
1575
1576 my $map = cf::map::find_map $path->as_string;
1577 $map = $map->customise_for ($self) if $map;
1578
1579# warn "entering ", $map->path, " at ($x, $y)\n"
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583
1584 $self->leave_link ($map, $x, $y);
1585 })->prio (1);
1586}
1587
1588=item $player_object->enter_exit ($exit_object)
1589
1590=cut
1591
1592sub parse_random_map_params {
1593 my ($spec) = @_;
1594
1595 my $rmp = { # defaults
1596 xsize => 10,
1597 ysize => 10,
1598 };
1599
1600 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2;
1602
1603 $rmp->{lc $k} = $v if (length $k) && (length $v);
1604 }
1605
1606 $rmp
1607}
1608
1609sub prepare_random_map {
1610 my ($exit) = @_;
1611
1612 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object
1615
1616 my $rmp = parse_random_map_params $exit->msg;
1617
1618 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name;
1620 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y;
1623 }
1624
1625 $rmp->{random_seed} ||= $exit->random_seed;
1626
1627 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data;
1629
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0;
1632
1633 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef);
1635 }
1636}
1637
1638sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_;
1640
1641 return unless $self->type == cf::PLAYER;
1642
1643 $self->enter_link;
1644
1645 (cf::async {
1646 unless (eval {
1647 prepare_random_map $exit
1648 if $exit->slaying eq "/!";
1649
1650 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652
1653 1;
1654 }) {
1655 $self->message ("Something went wrong deep within the crossfire server. "
1656 . "I'll try to bring you back to the map you were before. "
1657 . "Please report this to the dungeon master",
1658 cf::NDI_UNIQUE | cf::NDI_RED);
1659
1660 warn "ERROR in enter_exit: $@";
1661 $self->leave_link;
1662 }
1663 })->prio (1);
1664}
1665
1078=head3 cf::client 1666=head3 cf::client
1079 1667
1080=over 4 1668=over 4
1081 1669
1082=item $client->send_drawinfo ($text, $flags) 1670=item $client->send_drawinfo ($text, $flags)
1125 on_reply => sub { 1713 on_reply => sub {
1126 my ($ns, $msg) = @_; 1714 my ($ns, $msg) = @_;
1127 1715
1128 # this weird shuffling is so that direct followup queries 1716 # this weird shuffling is so that direct followup queries
1129 # get handled first 1717 # get handled first
1130 my $queue = delete $ns->{query_queue}; 1718 my $queue = delete $ns->{query_queue}
1719 or return; # be conservative, not sure how that cna happen, but we saw a crash here
1131 1720
1132 (shift @$queue)->[1]->($msg); 1721 (shift @$queue)->[1]->($msg);
1133 1722
1134 push @{ $ns->{query_queue} }, @$queue; 1723 push @{ $ns->{query_queue} }, @$queue;
1135 1724
1152=cut 1741=cut
1153 1742
1154sub cf::client::coro { 1743sub cf::client::coro {
1155 my ($self, $cb) = @_; 1744 my ($self, $cb) = @_;
1156 1745
1157 my $coro; $coro = async { 1746 my $coro = &cf::async ($cb);
1158 eval {
1159 $cb->();
1160 };
1161 warn $@ if $@;
1162 };
1163 1747
1164 $coro->on_destroy (sub { 1748 $coro->on_destroy (sub {
1165 delete $self->{_coro}{$coro+0}; 1749 delete $self->{_coro}{$coro+0};
1166 }); 1750 });
1167 1751
1339 1923
1340{ 1924{
1341 my $path = cf::localdir . "/database.pst"; 1925 my $path = cf::localdir . "/database.pst";
1342 1926
1343 sub db_load() { 1927 sub db_load() {
1344 warn "loading database $path\n";#d# remove later
1345 $DB = stat $path ? Storable::retrieve $path : { }; 1928 $DB = stat $path ? Storable::retrieve $path : { };
1346 } 1929 }
1347 1930
1348 my $pid; 1931 my $pid;
1349 1932
1350 sub db_save() { 1933 sub db_save() {
1351 warn "saving database $path\n";#d# remove later
1352 waitpid $pid, 0 if $pid; 1934 waitpid $pid, 0 if $pid;
1353 if (0 == ($pid = fork)) { 1935 if (0 == ($pid = fork)) {
1354 $DB->{_meta}{version} = 1; 1936 $DB->{_meta}{version} = 1;
1355 Storable::nstore $DB, "$path~"; 1937 Storable::nstore $DB, "$path~";
1356 rename "$path~", $path; 1938 rename "$path~", $path;
1409} 1991}
1410 1992
1411sub main { 1993sub main {
1412 # we must not ever block the main coroutine 1994 # we must not ever block the main coroutine
1413 local $Coro::idle = sub { 1995 local $Coro::idle = sub {
1414 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 1996 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1415 (Coro::unblock_sub { 1997 (Coro::unblock_sub {
1416 Event::one_event; 1998 Event::one_event;
1417 })->(); 1999 })->();
1418 }; 2000 };
1419 2001
1424} 2006}
1425 2007
1426############################################################################# 2008#############################################################################
1427# initialisation 2009# initialisation
1428 2010
1429sub perl_reload() { 2011sub reload() {
1430 # can/must only be called in main 2012 # can/must only be called in main
1431 if ($Coro::current != $Coro::main) { 2013 if ($Coro::current != $Coro::main) {
1432 warn "can only reload from main coroutine\n"; 2014 warn "can only reload from main coroutine\n";
1433 return; 2015 return;
1434 } 2016 }
1527 $LINK_MAP->height (41); 2109 $LINK_MAP->height (41);
1528 $LINK_MAP->alloc; 2110 $LINK_MAP->alloc;
1529 $LINK_MAP->path ("{link}"); 2111 $LINK_MAP->path ("{link}");
1530 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2112 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1531 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2113 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115 # dirty hack because... archetypes are not yet loaded
2116 Event->timer (
2117 after => 2,
2118 cb => sub {
2119 $_[0]->w->cancel;
2120
2121 # provide some exits "home"
2122 my $exit = cf::object::new "exit";
2123
2124 $exit->slaying ($EMERGENCY_POSITION->[0]);
2125 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128 $LINK_MAP->insert ($exit->clone, 19, 19);
2129 $LINK_MAP->insert ($exit->clone, 19, 20);
2130 $LINK_MAP->insert ($exit->clone, 19, 21);
2131 $LINK_MAP->insert ($exit->clone, 20, 19);
2132 $LINK_MAP->insert ($exit->clone, 20, 21);
2133 $LINK_MAP->insert ($exit->clone, 21, 19);
2134 $LINK_MAP->insert ($exit->clone, 21, 20);
2135 $LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137 $exit->destroy;
2138 });
2139
2140 $LINK_MAP->{deny_save} = 1;
2141 $LINK_MAP->{deny_reset} = 1;
2142
2143 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1532} 2144}
1533 2145
1534register "<global>", __PACKAGE__; 2146register "<global>", __PACKAGE__;
1535 2147
1536register_command "perl-reload" => sub { 2148register_command "reload" => sub {
1537 my ($who, $arg) = @_; 2149 my ($who, $arg) = @_;
1538 2150
1539 if ($who->flag (FLAG_WIZ)) { 2151 if ($who->flag (FLAG_WIZ)) {
1540 $who->message ("start of reload."); 2152 $who->message ("start of reload.");
1541 perl_reload; 2153 reload;
1542 $who->message ("end of reload."); 2154 $who->message ("end of reload.");
1543 } 2155 }
1544}; 2156};
1545 2157
1546unshift @INC, $LIBDIR; 2158unshift @INC, $LIBDIR;
1586 or warn "ERROR: unable to write runtime file: $!"; 2198 or warn "ERROR: unable to write runtime file: $!";
1587 })->(); 2199 })->();
1588 }, 2200 },
1589); 2201);
1590 2202
2203END { cf::emergency_save }
2204
15911 22051
1592 2206

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