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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.182 by root, Fri Jan 19 15:38:01 2007 UTC vs.
Revision 1.183 by root, Fri Jan 19 19:42:37 2007 UTC

… …
1441 1441
1442 cf::sync_job { $map->load }; 1442 cf::sync_job { $map->load };
1443} 1443}
1444 1444
1445our %MAP_PREFETCH; 1445our %MAP_PREFETCH;
1446our $MAP_PREFETCHER = Coro::async { 1446our $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 1447
1459sub find_async { 1448sub find_async {
1460 my ($path, $origin) = @_; 1449 my ($path, $origin) = @_;
1461 1450
1462 $path = normalise $path, $origin && $origin->{path}; 1451 $path = normalise $path, $origin && $origin->{path};
1463 1452
1464 if (my $map = $cf::MAP{$path}) { 1453 if (my $map = $cf::MAP{$path}) {
1465 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1454 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466 } 1455 }
1467 1456
1468 $MAP_PREFETCH{$path} = 0; 1457 undef $MAP_PREFETCH{$path};
1469 $MAP_PREFETCHER->ready; 1458 $MAP_PREFETCHER ||= cf::async {
1459 while (%MAP_PREFETCH) {
1460 for my $path (keys %MAP_PREFETCH) {
1461 warn "prefetching $path...\n";#d#
1462 my $map = find $path
1463 or next;
1464 $map->load;
1465
1466 delete $MAP_PREFETCH{$path};
1467 }
1468 }
1469 undef $MAP_PREFETCHER;
1470 };
1470 1471
1471 () 1472 ()
1472} 1473}
1473 1474
1474sub save { 1475sub save {
… …
2174 sub db_sync() { 2175 sub db_sync() {
2175 db_save if $dirty; 2176 db_save if $dirty;
2176 undef $dirty; 2177 undef $dirty;
2177 } 2178 }
2178 2179
2179 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { 2180 my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2180 db_sync; 2181 db_sync;
2181 }); 2182 });
2182 2183
2183 sub db_dirty() { 2184 sub db_dirty() {
2184 $dirty = 1; 2185 $dirty = 1;
… …
2242 }; 2243 };
2243 2244
2244 cfg_load; 2245 cfg_load;
2245 db_load; 2246 db_load;
2246 load_extensions; 2247 load_extensions;
2248
2249 $TICK_WATCHER->start;
2247 Event::loop; 2250 Event::loop;
2248} 2251}
2249 2252
2250############################################################################# 2253#############################################################################
2251# initialisation and cleanup 2254# initialisation and cleanup
… …
2293} 2296}
2294 2297
2295sub reload() { 2298sub reload() {
2296 # can/must only be called in main 2299 # can/must only be called in main
2297 if ($Coro::current != $Coro::main) { 2300 if ($Coro::current != $Coro::main) {
2298 warn "can only reload from main coroutine\n"; 2301 warn "can only reload from main coroutine";
2299 return; 2302 return;
2300 } 2303 }
2301 2304
2302 warn "reloading..."; 2305 warn "reloading...";
2303 2306
2304 warn "freezing server"; 2307 warn "cancelling server ticker";
2305 my $guard = freeze_mainloop; 2308 $TICK_WATCHER->cancel;
2309
2306 cf::emergency_save; 2310 cf::emergency_save;
2307
2308 warn "sync database to disk";
2309 cf::db_sync;
2310 IO::AIO::flush;
2311 2311
2312 eval { 2312 eval {
2313 # if anything goes wrong in here, we should simply crash as we already saved 2313 # if anything goes wrong in here, we should simply crash as we already saved
2314 2314
2315 warn "syncing database to disk";
2316 cf::db_sync;
2317
2315 warn "cancel all watchers"; 2318 warn "cancelling all WF_AUTOCANCEL watchers";
2316 for (Event::all_watchers) { 2319 for (Event::all_watchers) {
2317 $_->cancel if $_->data & WF_AUTOCANCEL; 2320 $_->cancel if $_->data & WF_AUTOCANCEL;
2318 } 2321 }
2319 2322
2323 warn "flushing outstanding aio requests";
2324 for (;;) {
2325 IO::AIO::flush;
2326 Coro::cede;
2327 last unless IO::AIO::nreqs;
2328 warn "iterate...";
2329 }
2330
2320 warn "cancel all extension coros"; 2331 warn "cancelling all extension coros";
2321 $_->cancel for values %EXT_CORO; 2332 $_->cancel for values %EXT_CORO;
2322 %EXT_CORO = (); 2333 %EXT_CORO = ();
2323 2334
2324 warn "remove commands"; 2335 warn "removing commands";
2325 %COMMAND = (); 2336 %COMMAND = ();
2326 2337
2327 warn "remove ext commands"; 2338 warn "removing ext commands";
2328 %EXTCMD = (); 2339 %EXTCMD = ();
2329 2340
2330 warn "unload/nuke all extensions"; 2341 warn "unloading/nuking all extensions";
2331 for my $pkg (@EXTS) { 2342 for my $pkg (@EXTS) {
2332 warn "... unloading $pkg"; 2343 warn "... unloading $pkg";
2333 2344
2334 if (my $cb = $pkg->can ("unload")) { 2345 if (my $cb = $pkg->can ("unload")) {
2335 eval { 2346 eval {
… …
2340 2351
2341 warn "... nuking $pkg"; 2352 warn "... nuking $pkg";
2342 Symbol::delete_package $pkg; 2353 Symbol::delete_package $pkg;
2343 } 2354 }
2344 2355
2345 warn "unload all perl modules loaded from $LIBDIR"; 2356 warn "unloading all perl modules loaded from $LIBDIR";
2346 while (my ($k, $v) = each %INC) { 2357 while (my ($k, $v) = each %INC) {
2347 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2358 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2348 2359
2349 warn "removing <$k>"; 2360 warn "... unloading $k";
2350 delete $INC{$k}; 2361 delete $INC{$k};
2351 2362
2352 $k =~ s/\.pm$//; 2363 $k =~ s/\.pm$//;
2353 $k =~ s/\//::/g; 2364 $k =~ s/\//::/g;
2354 2365
… …
2357 } 2368 }
2358 2369
2359 Symbol::delete_package $k; 2370 Symbol::delete_package $k;
2360 } 2371 }
2361 2372
2362 warn "get rid of safe::, as good as possible"; 2373 warn "getting rid of safe::, as good as possible";
2363 Symbol::delete_package "safe::$_" 2374 Symbol::delete_package "safe::$_"
2364 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2375 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2365 2376
2366 warn "unload cf.pm \"a bit\""; 2377 warn "unloading cf.pm \"a bit\"";
2367 delete $INC{"cf.pm"}; 2378 delete $INC{"cf.pm"};
2368 2379
2369 # don't, removes xs symbols, too, 2380 # don't, removes xs symbols, too,
2370 # and global variables created in xs 2381 # and global variables created in xs
2371 #Symbol::delete_package __PACKAGE__; 2382 #Symbol::delete_package __PACKAGE__;
2372 2383
2384 warn "unload completed, starting to reload now";
2385
2373 warn "reloading cf.pm"; 2386 warn "reloading cf.pm";
2374 require cf; 2387 require cf;
2375 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2388 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2376 2389
2377 warn "load config and database again"; 2390 warn "loading config and database again";
2378 cf::cfg_load; 2391 cf::cfg_load;
2379 cf::db_load; 2392 cf::db_load;
2380 2393
2381 warn "load extensions"; 2394 warn "loading extensions";
2382 cf::load_extensions; 2395 cf::load_extensions;
2383 2396
2384 warn "reattach attachments to objects/players"; 2397 warn "reattaching attachments to objects/players";
2385 _global_reattach; 2398 _global_reattach;
2386 warn "reattach attachments to maps"; 2399 warn "reattaching attachments to maps";
2387 reattach $_ for values %MAP; 2400 reattach $_ for values %MAP;
2401
2402 warn "restarting server ticker";
2403
2404 $TICK_WATCHER->start;
2388 }; 2405 };
2389 2406
2390 if ($@) { 2407 if ($@) {
2391 warn $@; 2408 warn $@;
2392 warn "error while reloading, exiting."; 2409 warn "error while reloading, exiting.";
… …
2414 } 2431 }
2415}; 2432};
2416 2433
2417unshift @INC, $LIBDIR; 2434unshift @INC, $LIBDIR;
2418 2435
2436my $bug_warning = 0;
2437
2419$TICK_WATCHER = Event->timer ( 2438$TICK_WATCHER = Event->timer (
2420 reentrant => 0, 2439 reentrant => 0,
2440 parked => 1,
2421 prio => 0, 2441 prio => 0,
2422 at => $NEXT_TICK || $TICK, 2442 at => $NEXT_TICK || $TICK,
2423 data => WF_AUTOCANCEL, 2443 data => WF_AUTOCANCEL,
2424 cb => sub { 2444 cb => sub {
2445 if ($Coro::current != $Coro::main) {
2446 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2447 unless ++$bug_warning > 10;
2448 return;
2449 }
2450
2425 $NOW = Event::time; 2451 $NOW = Event::time;
2426 2452
2427 cf::server_tick; # one server iteration 2453 cf::server_tick; # one server iteration
2428 $RUNTIME += $TICK; 2454 $RUNTIME += $TICK;
2429 $NEXT_TICK += $TICK; 2455 $NEXT_TICK += $TICK;
… …
2449 cb => \&IO::AIO::poll_cb, 2475 cb => \&IO::AIO::poll_cb,
2450); 2476);
2451 2477
2452$WRITE_RUNTIME_WATCHER = Event->timer ( 2478$WRITE_RUNTIME_WATCHER = Event->timer (
2453 data => WF_AUTOCANCEL, 2479 data => WF_AUTOCANCEL,
2454 after => 0, 2480 after => 1,
2455 interval => 10, 2481 interval => 10,
2456 cb => sub { 2482 cb => Coro::unblock_sub {
2457 (Coro::unblock_sub {
2458 write_runtime 2483 write_runtime
2459 or warn "ERROR: unable to write runtime file: $!"; 2484 or warn "ERROR: unable to write runtime file: $!";
2460 })->();
2461 }, 2485 },
2462); 2486);
2463 2487
2464END { cf::emergency_save } 2488END { cf::emergency_save }
2465 2489

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