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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.136 by root, Fri Jan 5 01:06:28 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;
76 75our $EMERGENCY_POSITION;
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 76
79############################################################################# 77#############################################################################
80 78
81=head2 GLOBAL VARIABLES 79=head2 GLOBAL VARIABLES
82 80
… …
181sub to_json($) { 179sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 181 JSON::Syck::Dump $_[0]
184} 182}
185 183
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 $guard
248}
249
186=item cf::sync_job { BLOCK } 250=item cf::sync_job { BLOCK }
187 251
188The design of crossfire+ requires that the main coro ($Coro::main) is 252The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 253always 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. 254reentrant. 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 267 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 268 # till the operation succeeds, freezing the server :/
205 269
206 # TODO: use suspend/resume instead 270 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 271 # (but this is cancel-safe)
208 local $FREEZE = 1; 272 my $freeze_guard = freeze_mainloop;
209 273
210 my $busy = 1; 274 my $busy = 1;
211 my @res; 275 my @res;
212 276
213 (Coro::async { 277 (Coro::async {
… …
237=cut 301=cut
238 302
239sub coro(&) { 303sub coro(&) {
240 my $cb = shift; 304 my $cb = shift;
241 305
242 my $coro; $coro = async { 306 my $coro = &cf::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 307
249 $coro->on_destroy (sub { 308 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 309 delete $EXT_CORO{$coro+0};
251 }); 310 });
252 $EXT_CORO{$coro+0} = $coro; 311 $EXT_CORO{$coro+0} = $coro;
… …
817 (aio_load "$filename.pst", $av) >= 0 876 (aio_load "$filename.pst", $av) >= 0
818 or return; 877 or return;
819 $av = eval { (Storable::thaw $av)->{objs} }; 878 $av = eval { (Storable::thaw $av)->{objs} };
820 } 879 }
821 880
881 warn sprintf "loading %s (%d)\n",
882 $filename, length $data, scalar @{$av || []};#d#
822 return ($data, $av); 883 return ($data, $av);
823} 884}
824 885
825############################################################################# 886#############################################################################
826# command handling &c 887# command handling &c
… …
1060package cf::map; 1121package cf::map;
1061 1122
1062use Fcntl; 1123use Fcntl;
1063use Coro::AIO; 1124use Coro::AIO;
1064 1125
1065our $MAX_RESET = 7200; 1126our $MAX_RESET = 3600;
1066our $DEFAULT_RESET = 3600; 1127our $DEFAULT_RESET = 3000;
1067 1128
1068sub generate_random_map { 1129sub generate_random_map {
1069 my ($path, $rmp) = @_; 1130 my ($path, $rmp) = @_;
1070 1131
1071 # mit "rum" bekleckern, nicht 1132 # mit "rum" bekleckern, nicht
… …
1087# and all this just because we cannot iterate over 1148# and all this just because we cannot iterate over
1088# all maps in C++... 1149# all maps in C++...
1089sub change_all_map_light { 1150sub change_all_map_light {
1090 my ($change) = @_; 1151 my ($change) = @_;
1091 1152
1092 $_->change_map_light ($change) for values %cf::MAP; 1153 $_->change_map_light ($change)
1154 for grep $_->outdoor, values %cf::MAP;
1093} 1155}
1094 1156
1095sub try_load_header($) { 1157sub try_load_header($) {
1096 my ($path) = @_; 1158 my ($path) = @_;
1097 1159
… …
1100 or return; 1162 or return;
1101 1163
1102 my $map = cf::map::new 1164 my $map = cf::map::new
1103 or return; 1165 or return;
1104 1166
1167 # for better error messages only, will be overwritten
1168 $map->path ($path);
1169
1105 $map->load_header ($path) 1170 $map->load_header ($path)
1106 or return; 1171 or return;
1107 1172
1108 $map->{load_path} = $path; 1173 $map->{load_path} = $path;
1109 1174
1110 $map 1175 $map
1111} 1176}
1112 1177
1178sub find;
1113sub find_map { 1179sub find {
1114 my ($path, $origin) = @_; 1180 my ($path, $origin) = @_;
1115 1181
1116 #warn "find_map<$path,$origin>\n";#d# 1182 #warn "find<$path,$origin>\n";#d#
1117 1183
1118 $path = new cf::path $path, $origin && $origin->path; 1184 $path = new cf::path $path, $origin && $origin->path;
1119 my $key = $path->as_string; 1185 my $key = $path->as_string;
1120 1186
1187 cf::lock_wait "map_find:$key";
1188
1121 $cf::MAP{$key} || do { 1189 $cf::MAP{$key} || do {
1190 my $guard = cf::lock_acquire "map_find:$key";
1191
1122 # do it the slow way 1192 # do it the slow way
1123 my $map = try_load_header $path->save_path; 1193 my $map = try_load_header $path->save_path;
1124 1194
1195 Coro::cede;
1196
1125 if ($map) { 1197 if ($map) {
1198 $map->last_access ((delete $map->{last_access})
1199 || $cf::RUNTIME); #d#
1126 # safety 1200 # safety
1127 $map->{instantiate_time} = $cf::RUNTIME 1201 $map->{instantiate_time} = $cf::RUNTIME
1128 if $map->{instantiate_time} > $cf::RUNTIME; 1202 if $map->{instantiate_time} > $cf::RUNTIME;
1129 } else { 1203 } else {
1130 if (my $rmp = $path->random_map_params) { 1204 if (my $rmp = $path->random_map_params) {
… …
1135 1209
1136 $map or return; 1210 $map or return;
1137 1211
1138 $map->{load_original} = 1; 1212 $map->{load_original} = 1;
1139 $map->{instantiate_time} = $cf::RUNTIME; 1213 $map->{instantiate_time} = $cf::RUNTIME;
1214 $map->last_access ($cf::RUNTIME);
1140 $map->instantiate; 1215 $map->instantiate;
1141 1216
1142 # per-player maps become, after loading, normal maps 1217 # per-player maps become, after loading, normal maps
1143 $map->per_player (0) if $path->{user_rel}; 1218 $map->per_player (0) if $path->{user_rel};
1144 } 1219 }
1145 1220
1146 $map->path ($key); 1221 $map->path ($key);
1147 $map->{path} = $path; 1222 $map->{path} = $path;
1148 $map->last_access ($cf::RUNTIME); 1223 $map->{last_save} = $cf::RUNTIME;
1224
1225 Coro::cede;
1149 1226
1150 if ($map->should_reset) { 1227 if ($map->should_reset) {
1151 $map->reset; 1228 $map->reset;
1229 undef $guard;
1152 $map = find_map $path; 1230 $map = find $path
1231 or return;
1153 } 1232 }
1154 1233
1155 $cf::MAP{$key} = $map 1234 $cf::MAP{$key} = $map
1156 } 1235 }
1157} 1236}
1158 1237
1159sub load { 1238sub load {
1160 my ($self) = @_; 1239 my ($self) = @_;
1161 1240
1241 my $path = $self->{path};
1242 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1243
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1244 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1245
1164 $self->in_memory (cf::MAP_LOADING); 1246 $self->in_memory (cf::MAP_LOADING);
1165
1166 my $path = $self->{path};
1167 1247
1168 $self->alloc; 1248 $self->alloc;
1169 $self->load_objects ($self->{load_path}, 1) 1249 $self->load_objects ($self->{load_path}, 1)
1170 or return; 1250 or return;
1171 1251
… …
1177 if (aio_open $uniq, O_RDONLY, 0) { 1257 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items; 1258 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0); 1259 $self->load_objects ($uniq, 0);
1180 } 1260 }
1181 } 1261 }
1262
1263 Coro::cede;
1182 1264
1183 # now do the right thing for maps 1265 # now do the right thing for maps
1184 $self->link_multipart_objects; 1266 $self->link_multipart_objects;
1185 1267
1186 if ($self->{path}->is_style_map) { 1268 if ($self->{path}->is_style_map) {
… …
1194 $self->difficulty ($self->estimate_difficulty) 1276 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty; 1277 unless $self->difficulty;
1196 $self->activate; 1278 $self->activate;
1197 } 1279 }
1198 1280
1281 Coro::cede;
1282
1199 $self->in_memory (cf::MAP_IN_MEMORY); 1283 $self->in_memory (cf::MAP_IN_MEMORY);
1200} 1284}
1201 1285
1202sub load_map_sync { 1286sub find_sync {
1203 my ($path, $origin) = @_; 1287 my ($path, $origin) = @_;
1204 1288
1205 #warn "load_map_sync<$path, $origin>\n";#d# 1289 cf::sync_job { cf::map::find $path, $origin }
1290}
1206 1291
1207 cf::sync_job { 1292sub do_load_sync {
1208 my $map = cf::map::find_map $path, $origin 1293 my ($map) = @_;
1209 or return; 1294
1210 $map->load; 1295 cf::sync_job { $map->load };
1211 $map
1212 }
1213} 1296}
1214 1297
1215sub save { 1298sub save {
1216 my ($self) = @_; 1299 my ($self) = @_;
1217 1300
1301 $self->{last_save} = $cf::RUNTIME;
1302
1303 return unless $self->dirty;
1304
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1305 my $save = $self->{path}->save_path; utf8::encode $save;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1306 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220 1307
1221 $self->{last_save} = $cf::RUNTIME;
1222
1223 return unless $self->dirty;
1224
1225 $self->{load_path} = $save; 1308 $self->{load_path} = $save;
1226 1309
1227 return if $self->{deny_save}; 1310 return if $self->{deny_save};
1311
1312 local $self->{last_access} = $self->last_access;#d#
1228 1313
1229 if ($uniq) { 1314 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1315 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES); 1316 $self->save_objects ($uniq, cf::IO_UNIQUES);
1232 } else { 1317 } else {
… …
1235} 1320}
1236 1321
1237sub swap_out { 1322sub swap_out {
1238 my ($self) = @_; 1323 my ($self) = @_;
1239 1324
1325 # save first because save cedes
1326 $self->save;
1327
1240 return if $self->players; 1328 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY; 1329 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save}; 1330 return if $self->{deny_save};
1243 1331
1244 $self->save;
1245 $self->clear; 1332 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED); 1333 $self->in_memory (cf::MAP_SWAPPED);
1247} 1334}
1248 1335
1249sub reset_at { 1336sub reset_at {
… …
1315 1402
1316sub customise_for { 1403sub customise_for {
1317 my ($map, $ob) = @_; 1404 my ($map, $ob) = @_;
1318 1405
1319 if ($map->per_player) { 1406 if ($map->per_player) {
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1407 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1321 } 1408 }
1322 1409
1323 $map 1410 $map
1324} 1411}
1325 1412
1326sub emergency_save { 1413sub emergency_save {
1327 local $cf::FREEZE = 1; 1414 my $freeze_guard = cf::freeze_mainloop;
1328 1415
1329 warn "enter emergency map save\n"; 1416 warn "enter emergency map save\n";
1330 1417
1331 cf::sync_job { 1418 cf::sync_job {
1332 warn "begin emergency map save\n"; 1419 warn "begin emergency map save\n";
… …
1383 (ref $cf::CFG{"may_$access"} 1470 (ref $cf::CFG{"may_$access"}
1384 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1471 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385 : $cf::CFG{"may_$access"}) 1472 : $cf::CFG{"may_$access"})
1386} 1473}
1387 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, $y)
1483
1484Moves the player out of the specila link map onto the given map. If the
1485map is not valid (or omitted), the player will be moved back to the
1486location he/she was before the call to C<enter_link>, or, if that fails,
1487to the emergency map position.
1488
1489Might block.
1490
1491=cut
1492
1388sub cf::object::player::enter_link { 1493sub cf::object::player::enter_link {
1389 my ($self) = @_; 1494 my ($self) = @_;
1390 1495
1496 $self->deactivate_recursive;
1497
1391 return if $self->map == $LINK_MAP; 1498 return if $self->map == $LINK_MAP;
1392 1499
1393 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1394 if $self->map; 1501 if $self->map;
1395 1502
1396 $self->enter_map ($LINK_MAP, 20, 20); 1503 $self->enter_map ($LINK_MAP, 20, 20);
1397 $self->deactivate_recursive;
1398} 1504}
1399 1505
1400sub cf::object::player::leave_link { 1506sub cf::object::player::leave_link {
1401 my ($self, $map, $x, $y) = @_; 1507 my ($self, $map, $x, $y) = @_;
1402 1508
1403 my $link_pos = delete $self->{_link_pos}; 1509 my $link_pos = delete $self->{_link_pos};
1404 1510
1405 unless ($map) { 1511 unless ($map) {
1406 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408 # restore original map position 1512 # restore original map position
1409 ($map, $x, $y) = @{ $link_pos || [] }; 1513 ($map, $x, $y) = @{ $link_pos || [] };
1410 $map = cf::map::find_map $map; 1514 $map = cf::map::find $map;
1411 1515
1412 unless ($map) { 1516 unless ($map) {
1413 ($map, $x, $y) = @$EMERGENCY_POSITION; 1517 ($map, $x, $y) = @$EMERGENCY_POSITION;
1414 $map = cf::map::find_map $map 1518 $map = cf::map::find $map
1415 or die "FATAL: cannot load emergency map\n"; 1519 or die "FATAL: cannot load emergency map\n";
1416 } 1520 }
1417 } 1521 }
1418 1522
1419 ($x, $y) = (-1, -1) 1523 ($x, $y) = (-1, -1)
… …
1427 1531
1428 $self->activate_recursive; 1532 $self->activate_recursive;
1429 $self->enter_map ($map, $x, $y); 1533 $self->enter_map ($map, $x, $y);
1430} 1534}
1431 1535
1536cf::player->attach (
1537 on_logout => sub {
1538 my ($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
1432=item $player_object->goto_map ($map, $x, $y) 1564=item $player_object->goto ($path, $x, $y)
1433 1565
1434=cut 1566=cut
1435 1567
1436sub cf::object::player::goto_map { 1568sub cf::object::player::goto {
1437 my ($self, $path, $x, $y) = @_; 1569 my ($self, $path, $x, $y) = @_;
1438 1570
1439 $self->enter_link; 1571 $self->enter_link;
1440 1572
1441 (Coro::async { 1573 (cf::async {
1442 $path = new cf::path $path; 1574 $path = new cf::path $path;
1443 1575
1444 my $map = cf::map::find_map $path->as_string; 1576 my $map = cf::map::find $path->as_string;
1445 $map = $map->customise_for ($self) if $map; 1577 $map = $map->customise_for ($self) if $map;
1446 1578
1447 warn "entering ", $map->path, " at ($x, $y)\n" 1579# warn "entering ", $map->path, " at ($x, $y)\n"
1448 if $map; 1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1449 1583
1450 $self->leave_link ($map, $x, $y); 1584 $self->leave_link ($map, $x, $y);
1451 })->prio (1); 1585 })->prio (1);
1452} 1586}
1453 1587
… …
1506 1640
1507 return unless $self->type == cf::PLAYER; 1641 return unless $self->type == cf::PLAYER;
1508 1642
1509 $self->enter_link; 1643 $self->enter_link;
1510 1644
1511 (Coro::async { 1645 (cf::async {
1646 $self->deactivate_recursive; # just to be sure
1512 unless (eval { 1647 unless (eval {
1513
1514 prepare_random_map $exit 1648 prepare_random_map $exit
1515 if $exit->slaying eq "/!"; 1649 if $exit->slaying eq "/!";
1516 1650
1517 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1651 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1518 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1652 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1519 1653
1520 1; 1654 1;
1521 }) { 1655 }) {
1522 $self->message ("Something went wrong deep within the crossfire server. " 1656 $self->message ("Something went wrong deep within the crossfire server. "
1523 . "I'll try to bring you back to the map you were before. " 1657 . "I'll try to bring you back to the map you were before. "
… …
1580 on_reply => sub { 1714 on_reply => sub {
1581 my ($ns, $msg) = @_; 1715 my ($ns, $msg) = @_;
1582 1716
1583 # this weird shuffling is so that direct followup queries 1717 # this weird shuffling is so that direct followup queries
1584 # get handled first 1718 # get handled first
1585 my $queue = delete $ns->{query_queue}; 1719 my $queue = delete $ns->{query_queue}
1720 or return; # be conservative, not sure how that can happen, but we saw a crash here
1586 1721
1587 (shift @$queue)->[1]->($msg); 1722 (shift @$queue)->[1]->($msg);
1588 1723
1589 push @{ $ns->{query_queue} }, @$queue; 1724 push @{ $ns->{query_queue} }, @$queue;
1590 1725
… …
1607=cut 1742=cut
1608 1743
1609sub cf::client::coro { 1744sub cf::client::coro {
1610 my ($self, $cb) = @_; 1745 my ($self, $cb) = @_;
1611 1746
1612 my $coro; $coro = async { 1747 my $coro = &cf::async ($cb);
1613 eval {
1614 $cb->();
1615 };
1616 warn $@ if $@;
1617 };
1618 1748
1619 $coro->on_destroy (sub { 1749 $coro->on_destroy (sub {
1620 delete $self->{_coro}{$coro+0}; 1750 delete $self->{_coro}{$coro+0};
1621 }); 1751 });
1622 1752
… …
1794 1924
1795{ 1925{
1796 my $path = cf::localdir . "/database.pst"; 1926 my $path = cf::localdir . "/database.pst";
1797 1927
1798 sub db_load() { 1928 sub db_load() {
1799 warn "loading database $path\n";#d# remove later
1800 $DB = stat $path ? Storable::retrieve $path : { }; 1929 $DB = stat $path ? Storable::retrieve $path : { };
1801 } 1930 }
1802 1931
1803 my $pid; 1932 my $pid;
1804 1933
1805 sub db_save() { 1934 sub db_save() {
1806 warn "saving database $path\n";#d# remove later
1807 waitpid $pid, 0 if $pid; 1935 waitpid $pid, 0 if $pid;
1808 if (0 == ($pid = fork)) { 1936 if (0 == ($pid = fork)) {
1809 $DB->{_meta}{version} = 1; 1937 $DB->{_meta}{version} = 1;
1810 Storable::nstore $DB, "$path~"; 1938 Storable::nstore $DB, "$path~";
1811 rename "$path~", $path; 1939 rename "$path~", $path;
… …
1859 open my $fh, "<:utf8", cf::confdir . "/config" 1987 open my $fh, "<:utf8", cf::confdir . "/config"
1860 or return; 1988 or return;
1861 1989
1862 local $/; 1990 local $/;
1863 *CFG = YAML::Syck::Load <$fh>; 1991 *CFG = YAML::Syck::Load <$fh>;
1992
1993 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994
1995 if (exists $CFG{mlockall}) {
1996 eval {
1997 $CFG{mlockall} ? &mlockall : &munlockall
1998 and die "WARNING: m(un)lockall failed: $!\n";
1999 };
2000 warn $@ if $@;
2001 }
1864} 2002}
1865 2003
1866sub main { 2004sub main {
1867 # we must not ever block the main coroutine 2005 # we must not ever block the main coroutine
1868 local $Coro::idle = sub { 2006 local $Coro::idle = sub {
1869 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2007 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870 (Coro::unblock_sub { 2008 (Coro::unblock_sub {
1871 Event::one_event; 2009 Event::one_event;
1872 })->(); 2010 })->();
1873 }; 2011 };
1874 2012
… …
1888 return; 2026 return;
1889 } 2027 }
1890 2028
1891 warn "reloading..."; 2029 warn "reloading...";
1892 2030
1893 local $FREEZE = 1; 2031 my $guard = freeze_mainloop;
1894 cf::emergency_save; 2032 cf::emergency_save;
1895 2033
1896 eval { 2034 eval {
1897 # if anything goes wrong in here, we should simply crash as we already saved 2035 # if anything goes wrong in here, we should simply crash as we already saved
1898 2036
… …
2034 reentrant => 0, 2172 reentrant => 0,
2035 prio => 0, 2173 prio => 0,
2036 at => $NEXT_TICK || $TICK, 2174 at => $NEXT_TICK || $TICK,
2037 data => WF_AUTOCANCEL, 2175 data => WF_AUTOCANCEL,
2038 cb => sub { 2176 cb => sub {
2039 unless ($FREEZE) {
2040 cf::server_tick; # one server iteration 2177 cf::server_tick; # one server iteration
2041 $RUNTIME += $TICK; 2178 $RUNTIME += $TICK;
2042 }
2043
2044 $NEXT_TICK += $TICK; 2179 $NEXT_TICK += $TICK;
2045 2180
2046 # if we are delayed by four ticks or more, skip them all 2181 # if we are delayed by four ticks or more, skip them all
2047 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2182 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2048 2183
… …
2071 or warn "ERROR: unable to write runtime file: $!"; 2206 or warn "ERROR: unable to write runtime file: $!";
2072 })->(); 2207 })->();
2073 }, 2208 },
2074); 2209);
2075 2210
2211END { cf::emergency_save }
2212
20761 22131
2077 2214

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