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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.202 by root, Mon Jan 29 20:16:28 2007 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC

… …
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
20use Data::Dumper; 21use Data::Dumper;
21use Digest::MD5; 22use Digest::MD5;
22use Fcntl; 23use Fcntl;
23use IO::AIO 2.32 (); 24use IO::AIO 2.32 ();
24use YAML::Syck (); 25use YAML::Syck ();
25use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26 30
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
28 32
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 34
… …
45our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
46 50
47our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 52our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 53our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 55our $NEXT_TICK;
52our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
53 61
54our %CFG; 62our %CFG;
55 63
56our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 65our $RUNTIME;
58 66
59our %PLAYER; # all users 67our %PLAYER; # all users
60our %MAP; # all maps 68our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 69our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
63 72
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 75
67# used to convert map paths into valid unix filenames by replacing / by ∕ 76# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 89mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
85 95
86our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
87 97
88sub cf::map::normalise; 98sub cf::map::normalise;
89 99
… …
263sub freeze_mainloop { 273sub freeze_mainloop {
264 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
265 275
266 my $guard = Coro::guard { 276 my $guard = Coro::guard {
267 $TICK_WATCHER->start; 277 $TICK_WATCHER->start;
268 $WRITE_RUNTIME_WATCHER->start;
269 }; 278 };
270 $WRITE_RUNTIME_WATCHER->stop;
271 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
272 $guard 280 $guard
273} 281}
274 282
275=item cf::async { BLOCK } 283=item cf::async { BLOCK }
… …
346 354
347 $coro 355 $coro
348} 356}
349 357
350sub write_runtime { 358sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime";
360
351 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
352 362
353 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
354 or return; 364 or return;
355 365
… …
358 # 60 allows for the watchdog to kill the server. 368 # 60 allows for the watchdog to kill the server.
359 369
360 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
361 and return; 371 and return;
362 372
373 # always fsync - this file is important
363 aio_fsync $fh 374 aio_fsync $fh
364 and return; 375 and return;
365 376
366 close $fh 377 close $fh
367 or return; 378 or return;
… …
752 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
753 764
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
758 close $fh; 769 close $fh;
759 770
760 if (@$objs) { 771 if (@$objs) {
761 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
766 close $fh; 777 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
768 } 779 }
769 } else { 780 } else {
770 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
… …
776 } 787 }
777 } else { 788 } else {
778 aio_unlink $filename; 789 aio_unlink $filename;
779 aio_unlink "$filename.pst"; 790 aio_unlink "$filename.pst";
780 } 791 }
781
782 #d##TODO# nuke non .map-files if exist
783 if ($filename =~ s/\.map$//) {
784 aio_unlink $filename;
785 aio_unlink "$filename.pst";
786 }
787 } 792 }
788} 793}
789 794
790sub object_freezer_as_string { 795sub object_freezer_as_string {
791 my ($rdata, $objs) = @_; 796 my ($rdata, $objs) = @_;
… …
797 802
798sub object_thawer_load { 803sub object_thawer_load {
799 my ($filename) = @_; 804 my ($filename) = @_;
800 805
801 my ($data, $av); 806 my ($data, $av);
802
803 #d#TODO remove .map if file does not exist
804 aio_stat $filename and $filename =~ s/\.map$//;
805 807
806 (aio_load $filename, $data) >= 0 808 (aio_load $filename, $data) >= 0
807 or return; 809 or return;
808 810
809 unless (aio_stat "$filename.pst") { 811 unless (aio_stat "$filename.pst") {
… …
1296 my ($self) = @_; 1298 my ($self) = @_;
1297 1299
1298 utf8::encode (my $save = $self->save_path); 1300 utf8::encode (my $save = $self->save_path);
1299 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1301 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1302 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302 #d#TODO remove .map and also nuke
1303 $save =~ s/\.map// or return;#d#
1304 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306} 1303}
1307 1304
1308sub load_header_from($) { 1305sub load_header_from($) {
1309 my ($self, $path) = @_; 1306 my ($self, $path) = @_;
1310 1307
… …
1598 return if $self->players; 1595 return if $self->players;
1599 return if $self->isa ("ext::map_per_player");#d# 1596 return if $self->isa ("ext::map_per_player");#d#
1600 1597
1601 warn "resetting map ", $self->path;#d# 1598 warn "resetting map ", $self->path;#d#
1602 1599
1600 $self->in_memory (cf::MAP_SWAPPED);
1601
1602 # need to save uniques path
1603 unless ($self->{deny_save}) {
1604 my $uniq = $self->uniq_path; utf8::encode $uniq;
1605
1606 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1607 if $uniq;
1608 }
1609
1603 delete $cf::MAP{$self->path}; 1610 delete $cf::MAP{$self->path};
1604 1611
1605 $self->in_memory (cf::MAP_SWAPPED);
1606 $self->clear; 1612 $self->clear;
1607 1613
1608 $_->clear_links_to ($self) for values %cf::MAP; 1614 $_->clear_links_to ($self) for values %cf::MAP;
1609 1615
1610 $self->unlink_save; 1616 $self->unlink_save;
… …
1800 $map->load; 1806 $map->load;
1801 $map->load_diag; 1807 $map->load_diag;
1802 1808
1803 return unless $self->contr->active; 1809 return unless $self->contr->active;
1804 $self->activate_recursive; 1810 $self->activate_recursive;
1811
1812 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1805 $self->enter_map ($map, $x, $y); 1813 $self->enter_map ($map, $x, $y);
1806} 1814}
1807 1815
1808cf::player->attach ( 1816cf::player->attach (
1809 on_logout => sub { 1817 on_logout => sub {
… …
1822 # try to abort aborted map switching on player login :) 1830 # try to abort aborted map switching on player login :)
1823 # should happen only on crashes 1831 # should happen only on crashes
1824 if ($pl->ob->{_link_pos}) { 1832 if ($pl->ob->{_link_pos}) {
1825 $pl->ob->enter_link; 1833 $pl->ob->enter_link;
1826 (async { 1834 (async {
1827 # we need this sleep as the login has a concurrent enter_exit running
1828 # and this sleep increases chances of the player not ending up in scorn
1829 $pl->ob->reply (undef, 1835 $pl->ob->reply (undef,
1830 "There was an internal problem at your last logout, " 1836 "There was an internal problem at your last logout, "
1831 . "the server will try to bring you to your intended destination in a second.", 1837 . "the server will try to bring you to your intended destination in a second.",
1832 cf::NDI_RED); 1838 cf::NDI_RED);
1839 # we need this sleep as the login has a concurrent enter_exit running
1840 # and this sleep increases chances of the player not ending up in scorn
1833 Coro::Timer::sleep 1; 1841 Coro::Timer::sleep 1;
1834 $pl->ob->leave_link; 1842 $pl->ob->leave_link;
1835 })->prio (2); 1843 })->prio (2);
1836 } 1844 }
1837 }, 1845 },
… …
2174The parameter C<$family> should best start with the name of the extension 2182The parameter C<$family> should best start with the name of the extension
2175using it, it should be unique. 2183using it, it should be unique.
2176 2184
2177=over 4 2185=over 4
2178 2186
2179=item $hashref = cf::db_get $family
2180
2181Return a hashref for use by the extension C<$family>, which can be
2182modified. After modifications, you have to call C<cf::db_dirty> or
2183C<cf::db_sync>.
2184
2185=item $value = cf::db_get $family => $key 2187=item $value = cf::db_get $family => $key
2186 2188
2187Returns a single value from the database 2189Returns a single value from the database.
2188
2189=item cf::db_put $family => $hashref
2190
2191Stores the given family hashref into the database. Updates are delayed, if
2192you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193 2190
2194=item cf::db_put $family => $key => $value 2191=item cf::db_put $family => $key => $value
2195 2192
2196Stores the given C<$value> in the family hash. Updates are delayed, if you 2193Stores the given C<$value> in the family.
2197want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199=item cf::db_dirty
2200
2201Marks the database as dirty, to be updated at a later time.
2202
2203=item cf::db_sync
2204
2205Immediately write the database to disk I<if it is dirty>.
2206 2194
2207=cut 2195=cut
2208 2196
2209our $DB; 2197our $DB;
2210 2198
2211{ 2199sub db_init {
2200 unless ($DB) {
2201 $DB = BDB::db_create $DB_ENV;
2202
2203 cf::sync_job {
2204 eval {
2205 $DB->set_flags (BDB::CHKSUM);
2206
2207 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2208 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2209 cf::cleanup "db_open(db): $!" if $!;
2210 };
2211 cf::cleanup "db_open(db): $@" if $@;
2212 };
2213
2212 my $path = cf::localdir . "/database.pst"; 2214 my $path = cf::localdir . "/database.pst";
2215 if (stat $path) {
2216 cf::sync_job {
2217 my $pst = Storable::retrieve $path;
2213 2218
2214 sub db_load() { 2219 cf::db_put (board => data => $pst->{board});
2215 $DB = stat $path ? Storable::retrieve $path : { }; 2220 cf::db_put (guildrules => data => $pst->{guildrules});
2216 } 2221 cf::db_put (rent => balance => $pst->{rent}{balance});
2222 BDB::db_env_txn_checkpoint $DB_ENV;
2217 2223
2218 my $pid; 2224 unlink $path;
2219
2220 sub db_save() {
2221 waitpid $pid, 0 if $pid;
2222 if (0 == ($pid = fork)) {
2223 $DB->{_meta}{version} = 1;
2224 Storable::nstore $DB, "$path~";
2225 rename "$path~", $path;
2226 cf::_exit 0 if defined $pid;
2227 } 2225 };
2228 }
2229
2230 my $dirty;
2231
2232 sub db_sync() {
2233 db_save if $dirty;
2234 undef $dirty;
2235 }
2236
2237 my $idle = Event->idle (
2238 reentrant => 0,
2239 min => 10,
2240 max => 20,
2241 repeat => 0,
2242 data => WF_AUTOCANCEL,
2243 cb => \&db_sync,
2244 );
2245
2246 sub db_dirty() {
2247 $dirty = 1;
2248 $idle->start;
2249 }
2250
2251 sub db_get($;$) {
2252 @_ >= 2
2253 ? $DB->{$_[0]}{$_[1]}
2254 : ($DB->{$_[0]} ||= { })
2255 }
2256
2257 sub db_put($$;$) {
2258 if (@_ >= 3) {
2259 $DB->{$_[0]}{$_[1]} = $_[2];
2260 } else {
2261 $DB->{$_[0]} = $_[1];
2262 }
2263 db_dirty;
2264 }
2265
2266 cf::global->attach (
2267 prio => 10000,
2268 on_cleanup => sub {
2269 db_sync;
2270 }, 2226 }
2271 ); 2227 }
2228}
2229
2230sub db_get($$) {
2231 my $key = "$_[0]/$_[1]";
2232
2233 cf::sync_job {
2234 BDB::db_get $DB, undef, $key, my $data;
2235
2236 $! ? ()
2237 : Compress::LZF::sthaw $data
2238 }
2239}
2240
2241sub db_put($$$) {
2242 BDB::dbreq_pri 4;
2243 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2272} 2244}
2273 2245
2274############################################################################# 2246#############################################################################
2275# the server's main() 2247# the server's init and main functions
2248
2249sub init_resources {
2250 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2251 or die "unable to load regions file\n";#d#
2252}
2276 2253
2277sub cfg_load { 2254sub cfg_load {
2278 open my $fh, "<:utf8", cf::confdir . "/config" 2255 open my $fh, "<:utf8", cf::confdir . "/config"
2279 or return; 2256 or return;
2280 2257
… …
2291 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2268 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2292 and die "WARNING: m(un)lockall failed: $!\n"; 2269 and die "WARNING: m(un)lockall failed: $!\n";
2293 }; 2270 };
2294 warn $@ if $@; 2271 warn $@ if $@;
2295 } 2272 }
2273}
2274
2275sub init {
2276 init_resources;
2296} 2277}
2297 2278
2298sub main { 2279sub main {
2299 # we must not ever block the main coroutine 2280 # we must not ever block the main coroutine
2300 local $Coro::idle = sub { 2281 local $Coro::idle = sub {
… …
2303 Event::one_event; 2284 Event::one_event;
2304 })->prio (Coro::PRIO_MAX); 2285 })->prio (Coro::PRIO_MAX);
2305 }; 2286 };
2306 2287
2307 cfg_load; 2288 cfg_load;
2308 db_load; 2289 db_init;
2309 load_extensions; 2290 load_extensions;
2310 2291
2311 $TICK_WATCHER->start; 2292 $TICK_WATCHER->start;
2312 Event::loop; 2293 Event::loop;
2313} 2294}
… …
2352 my $map = $cf::MAP{$path} or next; 2333 my $map = $cf::MAP{$path} or next;
2353 $map->valid or next; 2334 $map->valid or next;
2354 $map->save; 2335 $map->save;
2355 } 2336 }
2356 warn "end emergency map save\n"; 2337 warn "end emergency map save\n";
2338
2339 warn "begin emergency database checkpoint\n";
2340 BDB::db_env_txn_checkpoint $DB_ENV;
2341 warn "end emergency database checkpoint\n";
2357 }; 2342 };
2358 2343
2359 warn "leave emergency perl save\n"; 2344 warn "leave emergency perl save\n";
2345}
2346
2347sub post_cleanup {
2348 my ($make_core) = @_;
2349
2350 warn Carp::longmess "post_cleanup backtrace"
2351 if $make_core;
2360} 2352}
2361 2353
2362sub reload() { 2354sub reload() {
2363 # can/must only be called in main 2355 # can/must only be called in main
2364 if ($Coro::current != $Coro::main) { 2356 if ($Coro::current != $Coro::main) {
… …
2366 return; 2358 return;
2367 } 2359 }
2368 2360
2369 warn "reloading..."; 2361 warn "reloading...";
2370 2362
2371 warn "cancelling server ticker"; 2363 warn "entering sync_job";
2372 $TICK_WATCHER->cancel;
2373 2364
2365 cf::sync_job {
2366 cf::write_runtime; # external watchdog should not bark
2374 cf::emergency_save; 2367 cf::emergency_save;
2368 cf::write_runtime; # external watchdog should not bark
2375 2369
2376 eval { 2370 warn "syncing database to disk";
2371 BDB::db_env_txn_checkpoint $DB_ENV;
2372
2377 # if anything goes wrong in here, we should simply crash as we already saved 2373 # if anything goes wrong in here, we should simply crash as we already saved
2378
2379 warn "syncing database to disk";
2380 cf::db_sync;
2381 2374
2382 warn "cancelling all WF_AUTOCANCEL watchers"; 2375 warn "cancelling all WF_AUTOCANCEL watchers";
2383 for (Event::all_watchers) { 2376 for (Event::all_watchers) {
2384 $_->cancel if $_->data & WF_AUTOCANCEL; 2377 $_->cancel if $_->data & WF_AUTOCANCEL;
2385 } 2378 }
2386 2379
2387 warn "flushing outstanding aio requests"; 2380 warn "flushing outstanding aio requests";
2388 for (;;) { 2381 for (;;) {
2382 BDB::flush;
2389 IO::AIO::flush; 2383 IO::AIO::flush;
2390 Coro::cede; 2384 Coro::cede;
2391 last unless IO::AIO::nreqs; 2385 last unless IO::AIO::nreqs || BDB::nreqs;
2392 warn "iterate..."; 2386 warn "iterate...";
2393 } 2387 }
2394 2388
2395 warn "cancelling all extension coros"; 2389 warn "cancelling all extension coros";
2396 $_->cancel for values %EXT_CORO; 2390 $_->cancel for values %EXT_CORO;
… …
2451 require cf; 2445 require cf;
2452 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2446 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2453 2447
2454 warn "loading config and database again"; 2448 warn "loading config and database again";
2455 cf::cfg_load; 2449 cf::cfg_load;
2456 cf::db_load;
2457 2450
2458 warn "loading extensions"; 2451 warn "loading extensions";
2459 cf::load_extensions; 2452 cf::load_extensions;
2460 2453
2461 warn "reattaching attachments to objects/players"; 2454 warn "reattaching attachments to objects/players";
2462 _global_reattach; 2455 _global_reattach;
2463 warn "reattaching attachments to maps"; 2456 warn "reattaching attachments to maps";
2464 reattach $_ for values %MAP; 2457 reattach $_ for values %MAP;
2465 2458
2466 warn "restarting server ticker"; 2459 warn "loading reloadable resources";
2460 init_resources;
2467 2461
2468 $TICK_WATCHER->start; 2462 warn "leaving sync_job";
2469 };
2470 2463
2471 if ($@) { 2464 1
2465 } or do {
2472 warn $@; 2466 warn $@;
2473 warn "error while reloading, exiting."; 2467 warn "error while reloading, exiting.";
2474 exit 1; 2468 exit 1;
2475 } 2469 };
2476 2470
2477 warn "reloaded"; 2471 warn "reloaded";
2478}; 2472};
2479 2473
2480our $RELOAD_WATCHER; # used only during reload 2474our $RELOAD_WATCHER; # used only during reload
… …
2521 2515
2522 cf::server_tick; # one server iteration 2516 cf::server_tick; # one server iteration
2523 $RUNTIME += $TICK; 2517 $RUNTIME += $TICK;
2524 $NEXT_TICK += $TICK; 2518 $NEXT_TICK += $TICK;
2525 2519
2520 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2521 $NEXT_RUNTIME_WRITE = $NOW + 10;
2522 Coro::async_pool {
2523 write_runtime
2524 or warn "ERROR: unable to write runtime file: $!";
2525 };
2526 }
2527
2526 $WAIT_FOR_TICK->broadcast; 2528 $WAIT_FOR_TICK->broadcast;
2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2529 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2528 2530
2529 Event::sweep;
2530 Coro::cede_notself;
2531
2532# my $AFTER = Event::time; 2531# my $AFTER = Event::time;
2533# warn $AFTER - $NOW;#d# 2532# warn $AFTER - $NOW;#d#
2534 2533
2535 # if we are delayed by four ticks or more, skip them all 2534 # if we are delayed by four ticks or more, skip them all
2536 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2535 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2538 $TICK_WATCHER->at ($NEXT_TICK); 2537 $TICK_WATCHER->at ($NEXT_TICK);
2539 $TICK_WATCHER->start; 2538 $TICK_WATCHER->start;
2540 }, 2539 },
2541); 2540);
2542 2541
2542{
2543 BDB::max_poll_time $TICK * 0.1;
2544 $BDB_POLL_WATCHER = Event->io (
2545 reentrant => 0,
2546 fd => BDB::poll_fileno,
2547 poll => 'r',
2548 prio => 0,
2549 data => WF_AUTOCANCEL,
2550 cb => \&BDB::poll_cb,
2551 );
2552 BDB::min_parallel 8;
2553
2554 BDB::set_sync_prepare {
2555 my $status;
2556 my $current = $Coro::current;
2557 (
2558 sub {
2559 $status = $!;
2560 $current->ready; undef $current;
2561 },
2562 sub {
2563 Coro::schedule while defined $current;
2564 $! = $status;
2565 },
2566 )
2567 };
2568
2569 unless ($DB_ENV) {
2570 $DB_ENV = BDB::db_env_create;
2571
2572 cf::sync_job {
2573 eval {
2574 BDB::db_env_open
2575 $DB_ENV,
2576 $BDB_ENV_DIR,
2577 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2578 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2579 0666;
2580
2581 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2582
2583 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2584 $DB_ENV->set_lk_detect;
2585 };
2586
2587 cf::cleanup "db_env_open(db): $@" if $@;
2588 };
2589 }
2590}
2591
2592{
2593 IO::AIO::min_parallel 8;
2594
2595 undef $Coro::AIO::WATCHER;
2543IO::AIO::max_poll_time $TICK * 0.1; 2596 IO::AIO::max_poll_time $TICK * 0.1;
2544
2545undef $Coro::AIO::WATCHER;
2546$AIO_POLL_WATCHER = Event->io ( 2597 $AIO_POLL_WATCHER = Event->io (
2547 reentrant => 0, 2598 reentrant => 0,
2599 data => WF_AUTOCANCEL,
2548 fd => IO::AIO::poll_fileno, 2600 fd => IO::AIO::poll_fileno,
2549 poll => 'r', 2601 poll => 'r',
2550 prio => 6, 2602 prio => 6,
2551 data => WF_AUTOCANCEL,
2552 cb => \&IO::AIO::poll_cb, 2603 cb => \&IO::AIO::poll_cb,
2553); 2604 );
2554 2605}
2555$WRITE_RUNTIME_WATCHER = Event->timer (
2556 reentrant => 0,
2557 data => WF_AUTOCANCEL,
2558 after => 1,
2559 interval => 10,
2560 prio => 6, # keep it lowest so it acts like a watchdog
2561 cb => Coro::unblock_sub {
2562 write_runtime
2563 or warn "ERROR: unable to write runtime file: $!";
2564 },
2565);
2566 2606
2567END { cf::emergency_save } 2607END { cf::emergency_save }
2568 2608
25691 26091
2570 2610

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