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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.176 by root, Sun Jan 14 22:14:35 2007 UTC vs.
Revision 1.186 by root, Sat Jan 20 01:12:39 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];
… …
1121our $MAX_RESET = 3600; 1124our $MAX_RESET = 3600;
1122our $DEFAULT_RESET = 3000; 1125our $DEFAULT_RESET = 3000;
1123 1126
1124sub generate_random_map { 1127sub generate_random_map {
1125 my ($self, $rmp) = @_; 1128 my ($self, $rmp) = @_;
1126
1127 # mit "rum" bekleckern, nicht 1129 # mit "rum" bekleckern, nicht
1128 $self->_create_random_map ( 1130 $self->_create_random_map (
1129 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1131 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1132 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1131 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1133 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1340 1342
1341 $map->load_header 1343 $map->load_header
1342 or return; 1344 or return;
1343 1345
1344 if ($map->should_reset) { 1346 if ($map->should_reset) {
1347 # doing this can freeze the server in a sync job, obviously
1345 $cf::WAIT_FOR_TICK->wait; 1348 #$cf::WAIT_FOR_TICK->wait;
1346 $map->reset; 1349 $map->reset;
1347 undef $guard; 1350 undef $guard;
1348 $map = find $path 1351 $map = find $path
1349 or return; 1352 or return;
1350 } 1353 }
… …
1442 1445
1443 cf::sync_job { $map->load }; 1446 cf::sync_job { $map->load };
1444} 1447}
1445 1448
1446our %MAP_PREFETCH; 1449our %MAP_PREFETCH;
1447our $MAP_PREFETCHER = Coro::async { 1450our $MAP_PREFETCHER = undef;
1448 while () {
1449 for my $path (keys %MAP_PREFETCH) {
1450 my $map = find $path
1451 or next;
1452 $map->load;
1453
1454 delete $MAP_PREFETCH{$path};
1455 }
1456 Coro::schedule;
1457 }
1458};
1459 1451
1460sub find_async { 1452sub find_async {
1461 my ($path, $origin) = @_; 1453 my ($path, $origin) = @_;
1462 1454
1463 $path = normalise $path, $origin && $origin->{path}; 1455 $path = normalise $path, $origin && $origin->{path};
1464 1456
1465 if (my $map = $cf::MAP{$path}) { 1457 if (my $map = $cf::MAP{$path}) {
1466 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1458 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1467 } 1459 }
1468 1460
1469 $MAP_PREFETCH{$path} = 0; 1461 undef $MAP_PREFETCH{$path};
1470 $MAP_PREFETCHER->ready; 1462 $MAP_PREFETCHER ||= cf::async {
1463 while (%MAP_PREFETCH) {
1464 for my $path (keys %MAP_PREFETCH) {
1465 my $map = find $path
1466 or next;
1467 $map->load;
1468
1469 delete $MAP_PREFETCH{$path};
1470 }
1471 }
1472 undef $MAP_PREFETCHER;
1473 };
1471 1474
1472 () 1475 ()
1473} 1476}
1474 1477
1475sub save { 1478sub save {
… …
1813 1816
1814sub parse_random_map_params { 1817sub parse_random_map_params {
1815 my ($spec) = @_; 1818 my ($spec) = @_;
1816 1819
1817 my $rmp = { # defaults 1820 my $rmp = { # defaults
1818 xsize => 10, 1821 xsize => (cf::rndm 15, 40),
1819 ysize => 10, 1822 ysize => (cf::rndm 15, 40),
1823 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1824 #layout => string,
1820 }; 1825 };
1821 1826
1822 for (split /\n/, $spec) { 1827 for (split /\n/, $spec) {
1823 my ($k, $v) = split /\s+/, $_, 2; 1828 my ($k, $v) = split /\s+/, $_, 2;
1824 1829
… …
1828 $rmp 1833 $rmp
1829} 1834}
1830 1835
1831sub prepare_random_map { 1836sub prepare_random_map {
1832 my ($exit) = @_; 1837 my ($exit) = @_;
1838
1839 my $guard = cf::lock_acquire "exit_prepare:$exit";
1833 1840
1834 # all this does is basically replace the /! path by 1841 # all this does is basically replace the /! path by
1835 # a new random map path (?random/...) with a seed 1842 # a new random map path (?random/...) with a seed
1836 # that depends on the exit object 1843 # that depends on the exit object
1837 1844
… …
1846 1853
1847 $rmp->{random_seed} ||= $exit->random_seed; 1854 $rmp->{random_seed} ||= $exit->random_seed;
1848 1855
1849 my $data = cf::to_json $rmp; 1856 my $data = cf::to_json $rmp;
1850 my $md5 = Digest::MD5::md5_hex $data; 1857 my $md5 = Digest::MD5::md5_hex $data;
1858 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1851 1859
1852 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1860 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1853 aio_write $fh, 0, (length $data), $data, 0; 1861 aio_write $fh, 0, (length $data), $data, 0;
1862 undef $fh;
1863 aio_rename "$meta~", $meta;
1854 1864
1855 $exit->slaying ("?random/$md5"); 1865 $exit->slaying ("?random/$md5");
1856 $exit->msg (undef); 1866 $exit->msg (undef);
1857 } 1867 }
1858} 1868}
… …
2168 sub db_sync() { 2178 sub db_sync() {
2169 db_save if $dirty; 2179 db_save if $dirty;
2170 undef $dirty; 2180 undef $dirty;
2171 } 2181 }
2172 2182
2173 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { 2183 my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2174 db_sync; 2184 db_sync;
2175 }); 2185 });
2176 2186
2177 sub db_dirty() { 2187 sub db_dirty() {
2178 $dirty = 1; 2188 $dirty = 1;
… …
2236 }; 2246 };
2237 2247
2238 cfg_load; 2248 cfg_load;
2239 db_load; 2249 db_load;
2240 load_extensions; 2250 load_extensions;
2251
2252 $TICK_WATCHER->start;
2241 Event::loop; 2253 Event::loop;
2242} 2254}
2243 2255
2244############################################################################# 2256#############################################################################
2245# initialisation and cleanup 2257# initialisation and cleanup
… …
2287} 2299}
2288 2300
2289sub reload() { 2301sub reload() {
2290 # can/must only be called in main 2302 # can/must only be called in main
2291 if ($Coro::current != $Coro::main) { 2303 if ($Coro::current != $Coro::main) {
2292 warn "can only reload from main coroutine\n"; 2304 warn "can only reload from main coroutine";
2293 return; 2305 return;
2294 } 2306 }
2295 2307
2296 warn "reloading..."; 2308 warn "reloading...";
2297 2309
2298 warn "freezing server"; 2310 warn "cancelling server ticker";
2299 my $guard = freeze_mainloop; 2311 $TICK_WATCHER->cancel;
2312
2300 cf::emergency_save; 2313 cf::emergency_save;
2301
2302 warn "sync database to disk";
2303 cf::db_sync;
2304 IO::AIO::flush;
2305 2314
2306 eval { 2315 eval {
2307 # if anything goes wrong in here, we should simply crash as we already saved 2316 # if anything goes wrong in here, we should simply crash as we already saved
2308 2317
2318 warn "syncing database to disk";
2319 cf::db_sync;
2320
2309 warn "cancel all watchers"; 2321 warn "cancelling all WF_AUTOCANCEL watchers";
2310 for (Event::all_watchers) { 2322 for (Event::all_watchers) {
2311 $_->cancel if $_->data & WF_AUTOCANCEL; 2323 $_->cancel if $_->data & WF_AUTOCANCEL;
2312 } 2324 }
2313 2325
2326 warn "flushing outstanding aio requests";
2327 for (;;) {
2328 IO::AIO::flush;
2329 Coro::cede;
2330 last unless IO::AIO::nreqs;
2331 warn "iterate...";
2332 }
2333
2314 warn "cancel all extension coros"; 2334 warn "cancelling all extension coros";
2315 $_->cancel for values %EXT_CORO; 2335 $_->cancel for values %EXT_CORO;
2316 %EXT_CORO = (); 2336 %EXT_CORO = ();
2317 2337
2318 warn "remove commands"; 2338 warn "removing commands";
2319 %COMMAND = (); 2339 %COMMAND = ();
2320 2340
2321 warn "remove ext commands"; 2341 warn "removing ext commands";
2322 %EXTCMD = (); 2342 %EXTCMD = ();
2323 2343
2324 warn "unload/nuke all extensions"; 2344 warn "unloading/nuking all extensions";
2325 for my $pkg (@EXTS) { 2345 for my $pkg (@EXTS) {
2326 warn "... unloading $pkg"; 2346 warn "... unloading $pkg";
2327 2347
2328 if (my $cb = $pkg->can ("unload")) { 2348 if (my $cb = $pkg->can ("unload")) {
2329 eval { 2349 eval {
… …
2334 2354
2335 warn "... nuking $pkg"; 2355 warn "... nuking $pkg";
2336 Symbol::delete_package $pkg; 2356 Symbol::delete_package $pkg;
2337 } 2357 }
2338 2358
2339 warn "unload all perl modules loaded from $LIBDIR"; 2359 warn "unloading all perl modules loaded from $LIBDIR";
2340 while (my ($k, $v) = each %INC) { 2360 while (my ($k, $v) = each %INC) {
2341 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2361 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2342 2362
2343 warn "removing <$k>"; 2363 warn "... unloading $k";
2344 delete $INC{$k}; 2364 delete $INC{$k};
2345 2365
2346 $k =~ s/\.pm$//; 2366 $k =~ s/\.pm$//;
2347 $k =~ s/\//::/g; 2367 $k =~ s/\//::/g;
2348 2368
… …
2351 } 2371 }
2352 2372
2353 Symbol::delete_package $k; 2373 Symbol::delete_package $k;
2354 } 2374 }
2355 2375
2356 warn "get rid of safe::, as good as possible"; 2376 warn "getting rid of safe::, as good as possible";
2357 Symbol::delete_package "safe::$_" 2377 Symbol::delete_package "safe::$_"
2358 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2378 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2359 2379
2360 warn "unload cf.pm \"a bit\""; 2380 warn "unloading cf.pm \"a bit\"";
2361 delete $INC{"cf.pm"}; 2381 delete $INC{"cf.pm"};
2362 2382
2363 # don't, removes xs symbols, too, 2383 # don't, removes xs symbols, too,
2364 # and global variables created in xs 2384 # and global variables created in xs
2365 #Symbol::delete_package __PACKAGE__; 2385 #Symbol::delete_package __PACKAGE__;
2366 2386
2387 warn "unload completed, starting to reload now";
2388
2367 warn "reloading cf.pm"; 2389 warn "reloading cf.pm";
2368 require cf; 2390 require cf;
2369 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2391 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2370 2392
2371 warn "load config and database again"; 2393 warn "loading config and database again";
2372 cf::cfg_load; 2394 cf::cfg_load;
2373 cf::db_load; 2395 cf::db_load;
2374 2396
2375 warn "load extensions"; 2397 warn "loading extensions";
2376 cf::load_extensions; 2398 cf::load_extensions;
2377 2399
2378 warn "reattach attachments to objects/players"; 2400 warn "reattaching attachments to objects/players";
2379 _global_reattach; 2401 _global_reattach;
2380 warn "reattach attachments to maps"; 2402 warn "reattaching attachments to maps";
2381 reattach $_ for values %MAP; 2403 reattach $_ for values %MAP;
2404
2405 warn "restarting server ticker";
2406
2407 $TICK_WATCHER->start;
2382 }; 2408 };
2383 2409
2384 if ($@) { 2410 if ($@) {
2385 warn $@; 2411 warn $@;
2386 warn "error while reloading, exiting."; 2412 warn "error while reloading, exiting.";
… …
2408 } 2434 }
2409}; 2435};
2410 2436
2411unshift @INC, $LIBDIR; 2437unshift @INC, $LIBDIR;
2412 2438
2439my $bug_warning = 0;
2440
2413$TICK_WATCHER = Event->timer ( 2441$TICK_WATCHER = Event->timer (
2414 reentrant => 0, 2442 reentrant => 0,
2443 parked => 1,
2415 prio => 0, 2444 prio => 0,
2416 at => $NEXT_TICK || $TICK, 2445 at => $NEXT_TICK || $TICK,
2417 data => WF_AUTOCANCEL, 2446 data => WF_AUTOCANCEL,
2418 cb => sub { 2447 cb => sub {
2448 if ($Coro::current != $Coro::main) {
2449 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2450 unless ++$bug_warning > 10;
2451 return;
2452 }
2453
2419 $NOW = Event::time; 2454 $NOW = Event::time;
2420 2455
2421 cf::server_tick; # one server iteration 2456 cf::server_tick; # one server iteration
2422 $RUNTIME += $TICK; 2457 $RUNTIME += $TICK;
2423 $NEXT_TICK += $TICK; 2458 $NEXT_TICK += $TICK;
… …
2443 cb => \&IO::AIO::poll_cb, 2478 cb => \&IO::AIO::poll_cb,
2444); 2479);
2445 2480
2446$WRITE_RUNTIME_WATCHER = Event->timer ( 2481$WRITE_RUNTIME_WATCHER = Event->timer (
2447 data => WF_AUTOCANCEL, 2482 data => WF_AUTOCANCEL,
2448 after => 0, 2483 after => 1,
2449 interval => 10, 2484 interval => 10,
2450 cb => sub { 2485 prio => 6, # keep it lowest so it acts like a watchdog
2451 (Coro::unblock_sub { 2486 cb => Coro::unblock_sub {
2452 write_runtime 2487 write_runtime
2453 or warn "ERROR: unable to write runtime file: $!"; 2488 or warn "ERROR: unable to write runtime file: $!";
2454 })->();
2455 }, 2489 },
2456); 2490);
2457 2491
2458END { cf::emergency_save } 2492END { cf::emergency_save }
2459 2493

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