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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.190 by root, Mon Jan 22 03:44:41 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 3.4 ();
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;
… …
44our @EVENT; 44our @EVENT;
45our $LIBDIR = datadir . "/ext"; 45our $LIBDIR = datadir . "/ext";
46 46
47our $TICK = MAX_TIME * 1e-6; 47our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 48our $TICK_WATCHER;
49our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER;
49our $NEXT_TICK; 51our $NEXT_TICK;
50our $NOW; 52our $NOW;
51 53
52our %CFG; 54our %CFG;
53 55
… …
257} 259}
258 260
259sub freeze_mainloop { 261sub freeze_mainloop {
260 return unless $TICK_WATCHER->is_active; 262 return unless $TICK_WATCHER->is_active;
261 263
262 my $guard = Coro::guard { $TICK_WATCHER->start }; 264 my $guard = Coro::guard {
265 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 };
268 $WRITE_RUNTIME_WATCHER->stop;
263 $TICK_WATCHER->stop; 269 $TICK_WATCHER->stop;
264 $guard 270 $guard
265} 271}
266 272
267=item cf::async { BLOCK } 273=item cf::async { BLOCK }
… …
338 344
339 $coro 345 $coro
340} 346}
341 347
342sub write_runtime { 348sub write_runtime {
343 return unless $TICK_WATCHER->is_active;
344
345 my $runtime = cf::localdir . "/runtime"; 349 my $runtime = cf::localdir . "/runtime";
346 350
347 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348 or return; 352 or return;
349 353
354 my $value = $cf::RUNTIME + 90 + 10;
350 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 355 # 10 is the runtime save interval, for a monotonic clock
356 # 60 allows for the watchdog to kill the server.
357
351 (aio_write $fh, 0, (length $value), $value, 0) <= 0 358 (aio_write $fh, 0, (length $value), $value, 0) <= 0
352 and return; 359 and return;
353 360
354 aio_fsync $fh 361 aio_fsync $fh
355 and return; 362 and return;
… …
499our @CB_TYPE = (); # registry for type (cf-object class) based events 506our @CB_TYPE = (); # registry for type (cf-object class) based events
500our @CB_MAP = (); 507our @CB_MAP = ();
501 508
502my %attachment; 509my %attachment;
503 510
511sub cf::attachable::thawer_merge {
512 # simply override everything except _meta
513 local $_[0]{_meta};
514 %{$_[0]} = %{$_[1]};
515}
516
504sub _attach_cb($$$$) { 517sub _attach_cb($$$$) {
505 my ($registry, $event, $prio, $cb) = @_; 518 my ($registry, $event, $prio, $cb) = @_;
506 519
507 use sort 'stable'; 520 use sort 'stable';
508 521
… …
679# object support 692# object support
680 693
681sub reattach { 694sub reattach {
682 # basically do the same as instantiate, without calling instantiate 695 # basically do the same as instantiate, without calling instantiate
683 my ($obj) = @_; 696 my ($obj) = @_;
697
698 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684 699
685 my $registry = $obj->registry; 700 my $registry = $obj->registry;
686 701
687 @$registry = (); 702 @$registry = ();
688 703
… …
945 960
946sub exists($) { 961sub exists($) {
947 my ($login) = @_; 962 my ($login) = @_;
948 963
949 $cf::PLAYER{$login} 964 $cf::PLAYER{$login}
950 or cf::sync_job { !aio_stat $login } 965 or cf::sync_job { !aio_stat path $login }
951} 966}
952 967
953sub find($) { 968sub find($) {
954 return $cf::PLAYER{$_[0]} || do { 969 return $cf::PLAYER{$_[0]} || do {
955 my $login = $_[0]; 970 my $login = $_[0];
… …
1101 1116
1102use Fcntl; 1117use Fcntl;
1103use Coro::AIO; 1118use Coro::AIO;
1104 1119
1105use overload 1120use overload
1106 '""' => \&as_string; 1121 '""' => \&as_string,
1122 fallback => 1;
1107 1123
1108our $MAX_RESET = 3600; 1124our $MAX_RESET = 3600;
1109our $DEFAULT_RESET = 3000; 1125our $DEFAULT_RESET = 3000;
1110 1126
1111sub generate_random_map { 1127sub generate_random_map {
1112 my ($self, $rmp) = @_; 1128 my ($self, $rmp) = @_;
1113
1114 # mit "rum" bekleckern, nicht 1129 # mit "rum" bekleckern, nicht
1115 $self->_create_random_map ( 1130 $self->_create_random_map (
1116 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1131 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1132 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1133 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1125 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1140 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126 (cf::region::find $rmp->{region}), $rmp->{custom} 1141 (cf::region::find $rmp->{region}), $rmp->{custom}
1127 ) 1142 )
1128} 1143}
1129 1144
1145=item cf::map->register ($regex, $prio)
1146
1147Register a handler for the map path matching the given regex at the
1148givne priority (higher is better, built-in handlers have priority 0, the
1149default).
1150
1151=cut
1152
1130sub register { 1153sub register {
1131 my (undef, $regex) = @_; 1154 my (undef, $regex, $prio) = @_;
1132 my $pkg = caller; 1155 my $pkg = caller;
1133 1156
1134 no strict; 1157 no strict;
1135 push @{"$pkg\::ISA"}, __PACKAGE__; 1158 push @{"$pkg\::ISA"}, __PACKAGE__;
1136 1159
1137 $EXT_MAP{$pkg} = qr<$regex>; 1160 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138} 1161}
1139 1162
1140# also paths starting with '/' 1163# also paths starting with '/'
1141$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1164$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1165
1166sub thawer_merge {
1167 my ($self, $merge) = @_;
1168
1169 # we have to keep some variables in memory intact
1170 local $self->{path};
1171 local $self->{load_path};
1172 local $self->{deny_save};
1173 local $self->{deny_reset};
1174
1175 $self->SUPER::thawer_merge ($merge);
1176}
1142 1177
1143sub normalise { 1178sub normalise {
1144 my ($path, $base) = @_; 1179 my ($path, $base) = @_;
1145 1180
1146 # map plan: 1181 # map plan:
… …
1177 1212
1178 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1213 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179 1214
1180 $path = normalise $path, $base; 1215 $path = normalise $path, $base;
1181 1216
1182 for my $pkg (keys %EXT_MAP) { 1217 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183 if ($path =~ $EXT_MAP{$pkg}) { 1218 if ($path =~ $EXT_MAP{$pkg}[1]) {
1184 my $self = bless cf::map::new, $pkg; 1219 my $self = bless cf::map::new, $pkg;
1185 $self->{path} = $path; $self->path ($path); 1220 $self->{path} = $path; $self->path ($path);
1186 $self->init; # pass $1 etc. 1221 $self->init; # pass $1 etc.
1187 return $self; 1222 return $self;
1188 } 1223 }
… …
1243 1278
1244sub unlink_save { 1279sub unlink_save {
1245 my ($self) = @_; 1280 my ($self) = @_;
1246 1281
1247 utf8::encode (my $save = $self->save_path); 1282 utf8::encode (my $save = $self->save_path);
1248 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1283 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1284 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250} 1285}
1251 1286
1252sub load_header_from($) { 1287sub load_header_from($) {
1253 my ($self, $path) = @_; 1288 my ($self, $path) = @_;
1254 1289
… …
1262 $self->{load_path} = $path; 1297 $self->{load_path} = $path;
1263 1298
1264 1 1299 1
1265} 1300}
1266 1301
1267sub load_orig { 1302sub load_header_orig {
1268 my ($self) = @_; 1303 my ($self) = @_;
1269 1304
1270 $self->load_header_from ($self->load_path) 1305 $self->load_header_from ($self->load_path)
1271} 1306}
1272 1307
1273sub load_temp { 1308sub load_header_temp {
1274 my ($self) = @_; 1309 my ($self) = @_;
1275 1310
1276 $self->load_header_from ($self->save_path) 1311 $self->load_header_from ($self->save_path)
1312}
1313
1314sub prepare_temp {
1315 my ($self) = @_;
1316
1317 $self->last_access ((delete $self->{last_access})
1318 || $cf::RUNTIME); #d#
1319 # safety
1320 $self->{instantiate_time} = $cf::RUNTIME
1321 if $self->{instantiate_time} > $cf::RUNTIME;
1322}
1323
1324sub prepare_orig {
1325 my ($self) = @_;
1326
1327 $self->{load_original} = 1;
1328 $self->{instantiate_time} = $cf::RUNTIME;
1329 $self->last_access ($cf::RUNTIME);
1330 $self->instantiate;
1277} 1331}
1278 1332
1279sub load_header { 1333sub load_header {
1280 my ($self) = @_; 1334 my ($self) = @_;
1281 1335
1282 if ($self->load_temp) { 1336 if ($self->load_header_temp) {
1283 $self->last_access ((delete $self->{last_access}) 1337 $self->prepare_temp;
1284 || $cf::RUNTIME); #d#
1285 # safety
1286 $self->{instantiate_time} = $cf::RUNTIME
1287 if $self->{instantiate_time} > $cf::RUNTIME;
1288 } else { 1338 } else {
1289 $self->load_orig 1339 $self->load_header_orig
1290 or return; 1340 or return;
1291 1341 $self->prepare_orig;
1292 $self->{load_original} = 1;
1293 $self->{instantiate_time} = $cf::RUNTIME;
1294 $self->last_access ($cf::RUNTIME);
1295 $self->instantiate;
1296 } 1342 }
1297 1343
1298 1 1344 1
1299} 1345}
1300 1346
… …
1315 1361
1316 $map->load_header 1362 $map->load_header
1317 or return; 1363 or return;
1318 1364
1319 if ($map->should_reset) { 1365 if ($map->should_reset) {
1366 # doing this can freeze the server in a sync job, obviously
1367 #$cf::WAIT_FOR_TICK->wait;
1320 $map->reset; 1368 $map->reset;
1321 undef $guard; 1369 undef $guard;
1322 $map = find $path 1370 $map = find $path
1323 or return; 1371 or return;
1324 } 1372 }
1325 1373
1326 $cf::MAP{$path} = $map 1374 $cf::MAP{$path} = $map
1327 } 1375 }
1328} 1376}
1329 1377
1378sub pre_load { }
1379sub post_load { }
1380
1330sub load { 1381sub load {
1331 my ($self) = @_; 1382 my ($self) = @_;
1332 1383
1333 my $path = $self->{path}; 1384 my $path = $self->{path};
1334 my $guard = cf::lock_acquire "map_load:$path"; 1385 my $guard = cf::lock_acquire "map_load:$path";
… …
1336 return if $self->in_memory != cf::MAP_SWAPPED; 1387 return if $self->in_memory != cf::MAP_SWAPPED;
1337 1388
1338 $self->in_memory (cf::MAP_LOADING); 1389 $self->in_memory (cf::MAP_LOADING);
1339 1390
1340 $self->alloc; 1391 $self->alloc;
1392
1393 $self->pre_load;
1394
1341 $self->_load_objects ($self->{load_path}, 1) 1395 $self->_load_objects ($self->{load_path}, 1)
1342 or return; 1396 or return;
1343 1397
1344 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1398 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1345 if delete $self->{load_original}; 1399 if delete $self->{load_original};
… …
1367 unless $self->difficulty; 1421 unless $self->difficulty;
1368 Coro::cede; 1422 Coro::cede;
1369 $self->activate; 1423 $self->activate;
1370 } 1424 }
1371 1425
1426 $self->post_load;
1427
1372 $self->in_memory (cf::MAP_IN_MEMORY); 1428 $self->in_memory (cf::MAP_IN_MEMORY);
1373} 1429}
1374 1430
1375sub customise_for { 1431sub customise_for {
1376 my ($self, $ob) = @_; 1432 my ($self, $ob) = @_;
… …
1416 1472
1417 cf::sync_job { $map->load }; 1473 cf::sync_job { $map->load };
1418} 1474}
1419 1475
1420our %MAP_PREFETCH; 1476our %MAP_PREFETCH;
1421our $MAP_PREFETCHER = Coro::async { 1477our $MAP_PREFETCHER = undef;
1422 while () {
1423 for my $path (keys %MAP_PREFETCH) {
1424 my $map = find $path
1425 or next;
1426 $map->load;
1427
1428 delete $MAP_PREFETCH{$path};
1429 }
1430 Coro::schedule;
1431 }
1432};
1433 1478
1434sub find_async { 1479sub find_async {
1435 my ($path, $origin) = @_; 1480 my ($path, $origin) = @_;
1436 1481
1437 $path = normalise $path, $origin && $origin->{path}; 1482 $path = normalise $path, $origin && $origin->{path};
1438 1483
1439 if (my $map = $cf::MAP{$path}) { 1484 if (my $map = $cf::MAP{$path}) {
1440 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1485 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1441 } 1486 }
1442 1487
1443 $MAP_PREFETCH{$path} = 0; 1488 undef $MAP_PREFETCH{$path};
1489 $MAP_PREFETCHER ||= cf::async {
1490 while (%MAP_PREFETCH) {
1491 for my $path (keys %MAP_PREFETCH) {
1492 my $map = find $path
1493 or next;
1494 $map->load;
1495
1496 delete $MAP_PREFETCH{$path};
1497 }
1498 }
1499 undef $MAP_PREFETCHER;
1500 };
1444 $MAP_PREFETCHER->ready; 1501 $MAP_PREFETCHER->prio (6);
1445 1502
1446 () 1503 ()
1447} 1504}
1448 1505
1449sub save { 1506sub save {
… …
1494 1551
1495sub reset_at { 1552sub reset_at {
1496 my ($self) = @_; 1553 my ($self) = @_;
1497 1554
1498 # TODO: safety, remove and allow resettable per-player maps 1555 # TODO: safety, remove and allow resettable per-player maps
1499 return 1e99 if $self->isa ("ext::map_per_player"); 1556 return 1e99 if $self->isa ("ext::map_per_player");#d#
1500 return 1e99 if $self->{deny_reset}; 1557 return 1e99 if $self->{deny_reset};
1501 1558
1502 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1559 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1560 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504 1561
… …
1509 my ($self) = @_; 1566 my ($self) = @_;
1510 1567
1511 $self->reset_at <= $cf::RUNTIME 1568 $self->reset_at <= $cf::RUNTIME
1512} 1569}
1513 1570
1514sub rename {
1515 my ($self, $new_path) = @_;
1516
1517 normalise $new_path;
1518
1519 $self->unlink_save;
1520
1521 delete $cf::MAP{$self->path};
1522 $self->{path} = $new_path; $self->path ($self->{path});
1523 $cf::MAP{$self->path} = $self;
1524
1525 $self->save;
1526}
1527
1528sub reset { 1571sub reset {
1529 my ($self) = @_; 1572 my ($self) = @_;
1530 1573
1531 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1574 my $lock = cf::lock_acquire "map_data:$self->{path}";
1532 1575
… …
1549my $nuke_counter = "aaaa"; 1592my $nuke_counter = "aaaa";
1550 1593
1551sub nuke { 1594sub nuke {
1552 my ($self) = @_; 1595 my ($self) = @_;
1553 1596
1597 delete $cf::MAP{$self->path};
1598
1599 $self->unlink_save;
1600
1601 bless $self, "cf::map";
1602 delete $self->{deny_reset};
1554 $self->{deny_save} = 1; 1603 $self->{deny_save} = 1;
1555 $self->reset_timeout (1); 1604 $self->reset_timeout (1);
1556 $self->rename ("{nuke}/" . ($nuke_counter++)); 1605 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1606
1607 $cf::MAP{$self->path} = $self;
1608
1557 $self->reset; # polite request, might not happen 1609 $self->reset; # polite request, might not happen
1558} 1610}
1559 1611
1560=item cf::map::unique_maps 1612=item cf::map::unique_maps
1561 1613
… …
1792 1844
1793sub parse_random_map_params { 1845sub parse_random_map_params {
1794 my ($spec) = @_; 1846 my ($spec) = @_;
1795 1847
1796 my $rmp = { # defaults 1848 my $rmp = { # defaults
1797 xsize => 10, 1849 xsize => (cf::rndm 15, 40),
1798 ysize => 10, 1850 ysize => (cf::rndm 15, 40),
1851 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1852 #layout => string,
1799 }; 1853 };
1800 1854
1801 for (split /\n/, $spec) { 1855 for (split /\n/, $spec) {
1802 my ($k, $v) = split /\s+/, $_, 2; 1856 my ($k, $v) = split /\s+/, $_, 2;
1803 1857
… …
1807 $rmp 1861 $rmp
1808} 1862}
1809 1863
1810sub prepare_random_map { 1864sub prepare_random_map {
1811 my ($exit) = @_; 1865 my ($exit) = @_;
1866
1867 my $guard = cf::lock_acquire "exit_prepare:$exit";
1812 1868
1813 # all this does is basically replace the /! path by 1869 # all this does is basically replace the /! path by
1814 # a new random map path (?random/...) with a seed 1870 # a new random map path (?random/...) with a seed
1815 # that depends on the exit object 1871 # that depends on the exit object
1816 1872
… …
1825 1881
1826 $rmp->{random_seed} ||= $exit->random_seed; 1882 $rmp->{random_seed} ||= $exit->random_seed;
1827 1883
1828 my $data = cf::to_json $rmp; 1884 my $data = cf::to_json $rmp;
1829 my $md5 = Digest::MD5::md5_hex $data; 1885 my $md5 = Digest::MD5::md5_hex $data;
1886 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1830 1887
1831 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1888 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832 aio_write $fh, 0, (length $data), $data, 0; 1889 aio_write $fh, 0, (length $data), $data, 0;
1890 undef $fh;
1891 aio_rename "$meta~", $meta;
1833 1892
1834 $exit->slaying ("?random/$md5"); 1893 $exit->slaying ("?random/$md5");
1835 $exit->msg (undef); 1894 $exit->msg (undef);
1836 } 1895 }
1837} 1896}
… …
2147 sub db_sync() { 2206 sub db_sync() {
2148 db_save if $dirty; 2207 db_save if $dirty;
2149 undef $dirty; 2208 undef $dirty;
2150 } 2209 }
2151 2210
2152 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { 2211 my $idle = Event->idle (
2153 db_sync; 2212 reentrant => 0,
2213 min => 10,
2214 max => 20,
2215 repeat => 0,
2216 data => WF_AUTOCANCEL,
2217 cb => \&db_sync,
2154 }); 2218 );
2155 2219
2156 sub db_dirty() { 2220 sub db_dirty() {
2157 $dirty = 1; 2221 $dirty = 1;
2158 $idle->start; 2222 $idle->start;
2159 } 2223 }
… …
2207 2271
2208sub main { 2272sub main {
2209 # we must not ever block the main coroutine 2273 # we must not ever block the main coroutine
2210 local $Coro::idle = sub { 2274 local $Coro::idle = sub {
2211 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2275 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2276 (async {
2212 async { Event::one_event }; 2277 Event::one_event;
2278 })->prio (Coro::PRIO_MAX);
2213 }; 2279 };
2214 2280
2215 cfg_load; 2281 cfg_load;
2216 db_load; 2282 db_load;
2217 load_extensions; 2283 load_extensions;
2284
2285 $TICK_WATCHER->start;
2218 Event::loop; 2286 Event::loop;
2219} 2287}
2220 2288
2221############################################################################# 2289#############################################################################
2222# initialisation and cleanup 2290# initialisation and cleanup
2223 2291
2224# install some emergency cleanup handlers 2292# install some emergency cleanup handlers
2225BEGIN { 2293BEGIN {
2226 for my $signal (qw(INT HUP TERM)) { 2294 for my $signal (qw(INT HUP TERM)) {
2227 Event->signal ( 2295 Event->signal (
2296 reentrant => 0,
2228 data => WF_AUTOCANCEL, 2297 data => WF_AUTOCANCEL,
2229 signal => $signal, 2298 signal => $signal,
2230 cb => sub { 2299 cb => sub {
2231 cf::cleanup "SIG$signal"; 2300 cf::cleanup "SIG$signal";
2232 }, 2301 },
2233 ); 2302 );
2234 } 2303 }
2235} 2304}
… …
2264} 2333}
2265 2334
2266sub reload() { 2335sub reload() {
2267 # can/must only be called in main 2336 # can/must only be called in main
2268 if ($Coro::current != $Coro::main) { 2337 if ($Coro::current != $Coro::main) {
2269 warn "can only reload from main coroutine\n"; 2338 warn "can only reload from main coroutine";
2270 return; 2339 return;
2271 } 2340 }
2272 2341
2273 warn "reloading..."; 2342 warn "reloading...";
2274 2343
2275 warn "freezing server"; 2344 warn "cancelling server ticker";
2276 my $guard = freeze_mainloop; 2345 $TICK_WATCHER->cancel;
2346
2277 cf::emergency_save; 2347 cf::emergency_save;
2278
2279 warn "sync database to disk";
2280 cf::db_sync;
2281 IO::AIO::flush;
2282 2348
2283 eval { 2349 eval {
2284 # if anything goes wrong in here, we should simply crash as we already saved 2350 # if anything goes wrong in here, we should simply crash as we already saved
2285 2351
2352 warn "syncing database to disk";
2353 cf::db_sync;
2354
2286 warn "cancel all watchers"; 2355 warn "cancelling all WF_AUTOCANCEL watchers";
2287 for (Event::all_watchers) { 2356 for (Event::all_watchers) {
2288 $_->cancel if $_->data & WF_AUTOCANCEL; 2357 $_->cancel if $_->data & WF_AUTOCANCEL;
2289 } 2358 }
2290 2359
2360 warn "flushing outstanding aio requests";
2361 for (;;) {
2362 IO::AIO::flush;
2363 Coro::cede;
2364 last unless IO::AIO::nreqs;
2365 warn "iterate...";
2366 }
2367
2291 warn "cancel all extension coros"; 2368 warn "cancelling all extension coros";
2292 $_->cancel for values %EXT_CORO; 2369 $_->cancel for values %EXT_CORO;
2293 %EXT_CORO = (); 2370 %EXT_CORO = ();
2294 2371
2295 warn "remove commands"; 2372 warn "removing commands";
2296 %COMMAND = (); 2373 %COMMAND = ();
2297 2374
2298 warn "remove ext commands"; 2375 warn "removing ext commands";
2299 %EXTCMD = (); 2376 %EXTCMD = ();
2300 2377
2301 warn "unload/nuke all extensions"; 2378 warn "unloading/nuking all extensions";
2302 for my $pkg (@EXTS) { 2379 for my $pkg (@EXTS) {
2303 warn "... unloading $pkg"; 2380 warn "... unloading $pkg";
2304 2381
2305 if (my $cb = $pkg->can ("unload")) { 2382 if (my $cb = $pkg->can ("unload")) {
2306 eval { 2383 eval {
… …
2311 2388
2312 warn "... nuking $pkg"; 2389 warn "... nuking $pkg";
2313 Symbol::delete_package $pkg; 2390 Symbol::delete_package $pkg;
2314 } 2391 }
2315 2392
2316 warn "unload all perl modules loaded from $LIBDIR"; 2393 warn "unloading all perl modules loaded from $LIBDIR";
2317 while (my ($k, $v) = each %INC) { 2394 while (my ($k, $v) = each %INC) {
2318 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2395 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319 2396
2320 warn "removing <$k>"; 2397 warn "... unloading $k";
2321 delete $INC{$k}; 2398 delete $INC{$k};
2322 2399
2323 $k =~ s/\.pm$//; 2400 $k =~ s/\.pm$//;
2324 $k =~ s/\//::/g; 2401 $k =~ s/\//::/g;
2325 2402
… …
2328 } 2405 }
2329 2406
2330 Symbol::delete_package $k; 2407 Symbol::delete_package $k;
2331 } 2408 }
2332 2409
2333 warn "get rid of safe::, as good as possible"; 2410 warn "getting rid of safe::, as good as possible";
2334 Symbol::delete_package "safe::$_" 2411 Symbol::delete_package "safe::$_"
2335 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2412 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336 2413
2337 warn "unload cf.pm \"a bit\""; 2414 warn "unloading cf.pm \"a bit\"";
2338 delete $INC{"cf.pm"}; 2415 delete $INC{"cf.pm"};
2339 2416
2340 # don't, removes xs symbols, too, 2417 # don't, removes xs symbols, too,
2341 # and global variables created in xs 2418 # and global variables created in xs
2342 #Symbol::delete_package __PACKAGE__; 2419 #Symbol::delete_package __PACKAGE__;
2343 2420
2421 warn "unload completed, starting to reload now";
2422
2344 warn "reloading cf.pm"; 2423 warn "reloading cf.pm";
2345 require cf; 2424 require cf;
2346 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2425 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347 2426
2348 warn "load config and database again"; 2427 warn "loading config and database again";
2349 cf::cfg_load; 2428 cf::cfg_load;
2350 cf::db_load; 2429 cf::db_load;
2351 2430
2352 warn "load extensions"; 2431 warn "loading extensions";
2353 cf::load_extensions; 2432 cf::load_extensions;
2354 2433
2355 warn "reattach attachments to objects/players"; 2434 warn "reattaching attachments to objects/players";
2356 _global_reattach; 2435 _global_reattach;
2357 warn "reattach attachments to maps"; 2436 warn "reattaching attachments to maps";
2358 reattach $_ for values %MAP; 2437 reattach $_ for values %MAP;
2438
2439 warn "restarting server ticker";
2440
2441 $TICK_WATCHER->start;
2359 }; 2442 };
2360 2443
2361 if ($@) { 2444 if ($@) {
2362 warn $@; 2445 warn $@;
2363 warn "error while reloading, exiting."; 2446 warn "error while reloading, exiting.";
… …
2365 } 2448 }
2366 2449
2367 warn "reloaded"; 2450 warn "reloaded";
2368}; 2451};
2369 2452
2453our $RELOAD_WATCHER; # used only during reload
2454
2370register_command "reload" => sub { 2455register_command "reload" => sub {
2371 my ($who, $arg) = @_; 2456 my ($who, $arg) = @_;
2372 2457
2373 if ($who->flag (FLAG_WIZ)) { 2458 if ($who->flag (FLAG_WIZ)) {
2374 $who->message ("start of reload."); 2459 $who->message ("reloading server.");
2460
2461 # doing reload synchronously and two reloads happen back-to-back,
2462 # coro crashes during coro_state_free->destroy here.
2463
2464 $RELOAD_WATCHER ||= Event->timer (
2465 reentrant => 0,
2466 after => 0,
2467 data => WF_AUTOCANCEL,
2468 cb => sub {
2375 reload; 2469 reload;
2376 $who->message ("end of reload."); 2470 undef $RELOAD_WATCHER;
2471 },
2472 );
2377 } 2473 }
2378}; 2474};
2379 2475
2380unshift @INC, $LIBDIR; 2476unshift @INC, $LIBDIR;
2477
2478my $bug_warning = 0;
2381 2479
2382$TICK_WATCHER = Event->timer ( 2480$TICK_WATCHER = Event->timer (
2383 reentrant => 0, 2481 reentrant => 0,
2482 parked => 1,
2384 prio => 0, 2483 prio => -1,
2385 at => $NEXT_TICK || $TICK, 2484 at => $NEXT_TICK || $TICK,
2386 data => WF_AUTOCANCEL, 2485 data => WF_AUTOCANCEL,
2387 cb => sub { 2486 cb => sub {
2487 if ($Coro::current != $Coro::main) {
2488 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2489 unless ++$bug_warning > 10;
2490 return;
2491 }
2492
2388 $NOW = Event::time; 2493 $NOW = Event::time;
2389 2494
2390 cf::server_tick; # one server iteration 2495 cf::server_tick; # one server iteration
2391 $RUNTIME += $TICK; 2496 $RUNTIME += $TICK;
2392 $NEXT_TICK += $TICK; 2497 $NEXT_TICK += $TICK;
2393 2498
2394 $WAIT_FOR_TICK->broadcast; 2499 $WAIT_FOR_TICK->broadcast;
2395 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2500 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2501
2502 my $AFTER = Event::time;
2503 warn $AFTER - $NOW;#d#
2396 2504
2397 # if we are delayed by four ticks or more, skip them all 2505 # if we are delayed by four ticks or more, skip them all
2398 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2506 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399 2507
2400 $TICK_WATCHER->at ($NEXT_TICK); 2508 $TICK_WATCHER->at ($NEXT_TICK);
… …
2402 }, 2510 },
2403); 2511);
2404 2512
2405IO::AIO::max_poll_time $TICK * 0.2; 2513IO::AIO::max_poll_time $TICK * 0.2;
2406 2514
2407Event->io ( 2515undef $Coro::AIO::WATCHER;
2516$AIO_POLL_WATCHER = Event->io (
2517 reentrant => 0,
2408 fd => IO::AIO::poll_fileno, 2518 fd => IO::AIO::poll_fileno,
2409 poll => 'r', 2519 poll => 'r',
2410 prio => 5, 2520 prio => 6,
2411 data => WF_AUTOCANCEL, 2521 data => WF_AUTOCANCEL,
2412 cb => \&IO::AIO::poll_cb, 2522 cb => \&IO::AIO::poll_cb,
2413); 2523);
2414 2524
2415Event->timer ( 2525$WRITE_RUNTIME_WATCHER = Event->timer (
2526 reentrant => 0,
2416 data => WF_AUTOCANCEL, 2527 data => WF_AUTOCANCEL,
2417 after => 0, 2528 after => 1,
2418 interval => 10, 2529 interval => 10,
2419 cb => sub { 2530 prio => 6, # keep it lowest so it acts like a watchdog
2420 (Coro::unblock_sub { 2531 cb => Coro::unblock_sub {
2421 write_runtime 2532 write_runtime
2422 or warn "ERROR: unable to write runtime file: $!"; 2533 or warn "ERROR: unable to write runtime file: $!";
2423 })->();
2424 }, 2534 },
2425); 2535);
2426 2536
2427END { cf::emergency_save } 2537END { cf::emergency_save }
2428 2538

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