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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.178 by root, Thu Jan 18 00:06:55 2007 UTC vs.
Revision 1.188 by root, Sat Jan 20 23:30:16 2007 UTC

… …
349 my $runtime = cf::localdir . "/runtime"; 349 my $runtime = cf::localdir . "/runtime";
350 350
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 352 or return;
353 353
354 my $value = $cf::RUNTIME + 90 + 10;
354 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
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 358 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 359 and return;
357 360
358 aio_fsync $fh 361 aio_fsync $fh
359 and return; 362 and return;
… …
957 960
958sub exists($) { 961sub exists($) {
959 my ($login) = @_; 962 my ($login) = @_;
960 963
961 $cf::PLAYER{$login} 964 $cf::PLAYER{$login}
962 or cf::sync_job { !aio_stat $login } 965 or cf::sync_job { !aio_stat path $login }
963} 966}
964 967
965sub find($) { 968sub find($) {
966 return $cf::PLAYER{$_[0]} || do { 969 return $cf::PLAYER{$_[0]} || do {
967 my $login = $_[0]; 970 my $login = $_[0];
… …
1137 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1140 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138 (cf::region::find $rmp->{region}), $rmp->{custom} 1141 (cf::region::find $rmp->{region}), $rmp->{custom}
1139 ) 1142 )
1140} 1143}
1141 1144
1145=item cf::map->register ($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
1142sub register { 1153sub register {
1143 my (undef, $regex) = @_; 1154 my (undef, $regex, $prio) = @_;
1144 my $pkg = caller; 1155 my $pkg = caller;
1145 1156
1146 no strict; 1157 no strict;
1147 push @{"$pkg\::ISA"}, __PACKAGE__; 1158 push @{"$pkg\::ISA"}, __PACKAGE__;
1148 1159
1149 $EXT_MAP{$pkg} = qr<$regex>; 1160 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150} 1161}
1151 1162
1152# also paths starting with '/' 1163# also paths starting with '/'
1153$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1164$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154 1165
1155sub thawer_merge { 1166sub thawer_merge {
1156 my ($self, $merge) = @_; 1167 my ($self, $merge) = @_;
1157 1168
1158 # we have to keep some variables in memory intact 1169 # we have to keep some variables in memory intact
… …
1201 1212
1202 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
1203 1214
1204 $path = normalise $path, $base; 1215 $path = normalise $path, $base;
1205 1216
1206 for my $pkg (keys %EXT_MAP) { 1217 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207 if ($path =~ $EXT_MAP{$pkg}) { 1218 if ($path =~ $EXT_MAP{$pkg}[1]) {
1208 my $self = bless cf::map::new, $pkg; 1219 my $self = bless cf::map::new, $pkg;
1209 $self->{path} = $path; $self->path ($path); 1220 $self->{path} = $path; $self->path ($path);
1210 $self->init; # pass $1 etc. 1221 $self->init; # pass $1 etc.
1211 return $self; 1222 return $self;
1212 } 1223 }
… …
1286 $self->{load_path} = $path; 1297 $self->{load_path} = $path;
1287 1298
1288 1 1299 1
1289} 1300}
1290 1301
1291sub load_orig { 1302sub load_header_orig {
1292 my ($self) = @_; 1303 my ($self) = @_;
1293 1304
1294 $self->load_header_from ($self->load_path) 1305 $self->load_header_from ($self->load_path)
1295} 1306}
1296 1307
1297sub load_temp { 1308sub load_header_temp {
1298 my ($self) = @_; 1309 my ($self) = @_;
1299 1310
1300 $self->load_header_from ($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 $self->instantiate;
1301} 1331}
1302 1332
1303sub load_header { 1333sub load_header {
1304 my ($self) = @_; 1334 my ($self) = @_;
1305 1335
1306 if ($self->load_temp) { 1336 if ($self->load_header_temp) {
1307 $self->last_access ((delete $self->{last_access}) 1337 $self->prepare_temp;
1308 || $cf::RUNTIME); #d#
1309 # safety
1310 $self->{instantiate_time} = $cf::RUNTIME
1311 if $self->{instantiate_time} > $cf::RUNTIME;
1312 } else { 1338 } else {
1313 $self->load_orig 1339 $self->load_header_orig
1314 or return; 1340 or return;
1315 1341 $self->prepare_orig;
1316 $self->{load_original} = 1;
1317 $self->{instantiate_time} = $cf::RUNTIME;
1318 $self->last_access ($cf::RUNTIME);
1319 $self->instantiate;
1320 } 1342 }
1321 1343
1322 1 1344 1
1323} 1345}
1324 1346
… …
1339 1361
1340 $map->load_header 1362 $map->load_header
1341 or return; 1363 or return;
1342 1364
1343 if ($map->should_reset) { 1365 if ($map->should_reset) {
1366 # doing this can freeze the server in a sync job, obviously
1344 $cf::WAIT_FOR_TICK->wait; 1367 #$cf::WAIT_FOR_TICK->wait;
1345 $map->reset; 1368 $map->reset;
1346 undef $guard; 1369 undef $guard;
1347 $map = find $path 1370 $map = find $path
1348 or return; 1371 or return;
1349 } 1372 }
1350 1373
1351 $cf::MAP{$path} = $map 1374 $cf::MAP{$path} = $map
1352 } 1375 }
1353} 1376}
1354 1377
1378sub pre_load { }
1379sub post_load { }
1380
1355sub load { 1381sub load {
1356 my ($self) = @_; 1382 my ($self) = @_;
1357 1383
1358 my $path = $self->{path}; 1384 my $path = $self->{path};
1359 my $guard = cf::lock_acquire "map_load:$path"; 1385 my $guard = cf::lock_acquire "map_load:$path";
… …
1361 return if $self->in_memory != cf::MAP_SWAPPED; 1387 return if $self->in_memory != cf::MAP_SWAPPED;
1362 1388
1363 $self->in_memory (cf::MAP_LOADING); 1389 $self->in_memory (cf::MAP_LOADING);
1364 1390
1365 $self->alloc; 1391 $self->alloc;
1392
1393 $self->pre_load;
1394
1366 $self->_load_objects ($self->{load_path}, 1) 1395 $self->_load_objects ($self->{load_path}, 1)
1367 or return; 1396 or return;
1368 1397
1369 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1398 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1370 if delete $self->{load_original}; 1399 if delete $self->{load_original};
… …
1392 unless $self->difficulty; 1421 unless $self->difficulty;
1393 Coro::cede; 1422 Coro::cede;
1394 $self->activate; 1423 $self->activate;
1395 } 1424 }
1396 1425
1426 $self->post_load;
1427
1397 $self->in_memory (cf::MAP_IN_MEMORY); 1428 $self->in_memory (cf::MAP_IN_MEMORY);
1398} 1429}
1399 1430
1400sub customise_for { 1431sub customise_for {
1401 my ($self, $ob) = @_; 1432 my ($self, $ob) = @_;
… …
1441 1472
1442 cf::sync_job { $map->load }; 1473 cf::sync_job { $map->load };
1443} 1474}
1444 1475
1445our %MAP_PREFETCH; 1476our %MAP_PREFETCH;
1446our $MAP_PREFETCHER = Coro::async { 1477our $MAP_PREFETCHER = undef;
1447 while () {
1448 for my $path (keys %MAP_PREFETCH) {
1449 my $map = find $path
1450 or next;
1451 $map->load;
1452
1453 delete $MAP_PREFETCH{$path};
1454 }
1455 Coro::schedule;
1456 }
1457};
1458 1478
1459sub find_async { 1479sub find_async {
1460 my ($path, $origin) = @_; 1480 my ($path, $origin) = @_;
1461 1481
1462 $path = normalise $path, $origin && $origin->{path}; 1482 $path = normalise $path, $origin && $origin->{path};
1463 1483
1464 if (my $map = $cf::MAP{$path}) { 1484 if (my $map = $cf::MAP{$path}) {
1465 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1485 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466 } 1486 }
1467 1487
1468 $MAP_PREFETCH{$path} = 0; 1488 undef $MAP_PREFETCH{$path};
1469 $MAP_PREFETCHER->ready; 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 $MAP_PREFETCHER;
1500 };
1470 1501
1471 () 1502 ()
1472} 1503}
1473 1504
1474sub save { 1505sub save {
… …
1812 1843
1813sub parse_random_map_params { 1844sub parse_random_map_params {
1814 my ($spec) = @_; 1845 my ($spec) = @_;
1815 1846
1816 my $rmp = { # defaults 1847 my $rmp = { # defaults
1817 xsize => -1, 1848 xsize => (cf::rndm 15, 40),
1818 ysize => -1, 1849 ysize => (cf::rndm 15, 40),
1850 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1851 #layout => string,
1819 }; 1852 };
1820 1853
1821 for (split /\n/, $spec) { 1854 for (split /\n/, $spec) {
1822 my ($k, $v) = split /\s+/, $_, 2; 1855 my ($k, $v) = split /\s+/, $_, 2;
1823 1856
… …
1827 $rmp 1860 $rmp
1828} 1861}
1829 1862
1830sub prepare_random_map { 1863sub prepare_random_map {
1831 my ($exit) = @_; 1864 my ($exit) = @_;
1865
1866 my $guard = cf::lock_acquire "exit_prepare:$exit";
1832 1867
1833 # all this does is basically replace the /! path by 1868 # all this does is basically replace the /! path by
1834 # a new random map path (?random/...) with a seed 1869 # a new random map path (?random/...) with a seed
1835 # that depends on the exit object 1870 # that depends on the exit object
1836 1871
… …
2170 sub db_sync() { 2205 sub db_sync() {
2171 db_save if $dirty; 2206 db_save if $dirty;
2172 undef $dirty; 2207 undef $dirty;
2173 } 2208 }
2174 2209
2175 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { 2210 my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2176 db_sync; 2211 db_sync;
2177 }); 2212 });
2178 2213
2179 sub db_dirty() { 2214 sub db_dirty() {
2180 $dirty = 1; 2215 $dirty = 1;
… …
2238 }; 2273 };
2239 2274
2240 cfg_load; 2275 cfg_load;
2241 db_load; 2276 db_load;
2242 load_extensions; 2277 load_extensions;
2278
2279 $TICK_WATCHER->start;
2243 Event::loop; 2280 Event::loop;
2244} 2281}
2245 2282
2246############################################################################# 2283#############################################################################
2247# initialisation and cleanup 2284# initialisation and cleanup
… …
2289} 2326}
2290 2327
2291sub reload() { 2328sub reload() {
2292 # can/must only be called in main 2329 # can/must only be called in main
2293 if ($Coro::current != $Coro::main) { 2330 if ($Coro::current != $Coro::main) {
2294 warn "can only reload from main coroutine\n"; 2331 warn "can only reload from main coroutine";
2295 return; 2332 return;
2296 } 2333 }
2297 2334
2298 warn "reloading..."; 2335 warn "reloading...";
2299 2336
2300 warn "freezing server"; 2337 warn "cancelling server ticker";
2301 my $guard = freeze_mainloop; 2338 $TICK_WATCHER->cancel;
2339
2302 cf::emergency_save; 2340 cf::emergency_save;
2303
2304 warn "sync database to disk";
2305 cf::db_sync;
2306 IO::AIO::flush;
2307 2341
2308 eval { 2342 eval {
2309 # if anything goes wrong in here, we should simply crash as we already saved 2343 # if anything goes wrong in here, we should simply crash as we already saved
2310 2344
2345 warn "syncing database to disk";
2346 cf::db_sync;
2347
2311 warn "cancel all watchers"; 2348 warn "cancelling all WF_AUTOCANCEL watchers";
2312 for (Event::all_watchers) { 2349 for (Event::all_watchers) {
2313 $_->cancel if $_->data & WF_AUTOCANCEL; 2350 $_->cancel if $_->data & WF_AUTOCANCEL;
2314 } 2351 }
2315 2352
2353 warn "flushing outstanding aio requests";
2354 for (;;) {
2355 IO::AIO::flush;
2356 Coro::cede;
2357 last unless IO::AIO::nreqs;
2358 warn "iterate...";
2359 }
2360
2316 warn "cancel all extension coros"; 2361 warn "cancelling all extension coros";
2317 $_->cancel for values %EXT_CORO; 2362 $_->cancel for values %EXT_CORO;
2318 %EXT_CORO = (); 2363 %EXT_CORO = ();
2319 2364
2320 warn "remove commands"; 2365 warn "removing commands";
2321 %COMMAND = (); 2366 %COMMAND = ();
2322 2367
2323 warn "remove ext commands"; 2368 warn "removing ext commands";
2324 %EXTCMD = (); 2369 %EXTCMD = ();
2325 2370
2326 warn "unload/nuke all extensions"; 2371 warn "unloading/nuking all extensions";
2327 for my $pkg (@EXTS) { 2372 for my $pkg (@EXTS) {
2328 warn "... unloading $pkg"; 2373 warn "... unloading $pkg";
2329 2374
2330 if (my $cb = $pkg->can ("unload")) { 2375 if (my $cb = $pkg->can ("unload")) {
2331 eval { 2376 eval {
… …
2336 2381
2337 warn "... nuking $pkg"; 2382 warn "... nuking $pkg";
2338 Symbol::delete_package $pkg; 2383 Symbol::delete_package $pkg;
2339 } 2384 }
2340 2385
2341 warn "unload all perl modules loaded from $LIBDIR"; 2386 warn "unloading all perl modules loaded from $LIBDIR";
2342 while (my ($k, $v) = each %INC) { 2387 while (my ($k, $v) = each %INC) {
2343 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2388 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2344 2389
2345 warn "removing <$k>"; 2390 warn "... unloading $k";
2346 delete $INC{$k}; 2391 delete $INC{$k};
2347 2392
2348 $k =~ s/\.pm$//; 2393 $k =~ s/\.pm$//;
2349 $k =~ s/\//::/g; 2394 $k =~ s/\//::/g;
2350 2395
… …
2353 } 2398 }
2354 2399
2355 Symbol::delete_package $k; 2400 Symbol::delete_package $k;
2356 } 2401 }
2357 2402
2358 warn "get rid of safe::, as good as possible"; 2403 warn "getting rid of safe::, as good as possible";
2359 Symbol::delete_package "safe::$_" 2404 Symbol::delete_package "safe::$_"
2360 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2405 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2361 2406
2362 warn "unload cf.pm \"a bit\""; 2407 warn "unloading cf.pm \"a bit\"";
2363 delete $INC{"cf.pm"}; 2408 delete $INC{"cf.pm"};
2364 2409
2365 # don't, removes xs symbols, too, 2410 # don't, removes xs symbols, too,
2366 # and global variables created in xs 2411 # and global variables created in xs
2367 #Symbol::delete_package __PACKAGE__; 2412 #Symbol::delete_package __PACKAGE__;
2368 2413
2414 warn "unload completed, starting to reload now";
2415
2369 warn "reloading cf.pm"; 2416 warn "reloading cf.pm";
2370 require cf; 2417 require cf;
2371 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2418 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2372 2419
2373 warn "load config and database again"; 2420 warn "loading config and database again";
2374 cf::cfg_load; 2421 cf::cfg_load;
2375 cf::db_load; 2422 cf::db_load;
2376 2423
2377 warn "load extensions"; 2424 warn "loading extensions";
2378 cf::load_extensions; 2425 cf::load_extensions;
2379 2426
2380 warn "reattach attachments to objects/players"; 2427 warn "reattaching attachments to objects/players";
2381 _global_reattach; 2428 _global_reattach;
2382 warn "reattach attachments to maps"; 2429 warn "reattaching attachments to maps";
2383 reattach $_ for values %MAP; 2430 reattach $_ for values %MAP;
2431
2432 warn "restarting server ticker";
2433
2434 $TICK_WATCHER->start;
2384 }; 2435 };
2385 2436
2386 if ($@) { 2437 if ($@) {
2387 warn $@; 2438 warn $@;
2388 warn "error while reloading, exiting."; 2439 warn "error while reloading, exiting.";
… …
2410 } 2461 }
2411}; 2462};
2412 2463
2413unshift @INC, $LIBDIR; 2464unshift @INC, $LIBDIR;
2414 2465
2466my $bug_warning = 0;
2467
2415$TICK_WATCHER = Event->timer ( 2468$TICK_WATCHER = Event->timer (
2416 reentrant => 0, 2469 reentrant => 0,
2470 parked => 1,
2417 prio => 0, 2471 prio => 0,
2418 at => $NEXT_TICK || $TICK, 2472 at => $NEXT_TICK || $TICK,
2419 data => WF_AUTOCANCEL, 2473 data => WF_AUTOCANCEL,
2420 cb => sub { 2474 cb => sub {
2475 if ($Coro::current != $Coro::main) {
2476 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2477 unless ++$bug_warning > 10;
2478 return;
2479 }
2480
2421 $NOW = Event::time; 2481 $NOW = Event::time;
2422 2482
2423 cf::server_tick; # one server iteration 2483 cf::server_tick; # one server iteration
2424 $RUNTIME += $TICK; 2484 $RUNTIME += $TICK;
2425 $NEXT_TICK += $TICK; 2485 $NEXT_TICK += $TICK;
… …
2445 cb => \&IO::AIO::poll_cb, 2505 cb => \&IO::AIO::poll_cb,
2446); 2506);
2447 2507
2448$WRITE_RUNTIME_WATCHER = Event->timer ( 2508$WRITE_RUNTIME_WATCHER = Event->timer (
2449 data => WF_AUTOCANCEL, 2509 data => WF_AUTOCANCEL,
2450 after => 0, 2510 after => 1,
2451 interval => 10, 2511 interval => 10,
2452 cb => sub { 2512 prio => 6, # keep it lowest so it acts like a watchdog
2453 (Coro::unblock_sub { 2513 cb => Coro::unblock_sub {
2454 write_runtime 2514 write_runtime
2455 or warn "ERROR: unable to write runtime file: $!"; 2515 or warn "ERROR: unable to write runtime file: $!";
2456 })->();
2457 }, 2516 },
2458); 2517);
2459 2518
2460END { cf::emergency_save } 2519END { cf::emergency_save }
2461 2520

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