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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.218 by root, Sat Feb 17 01:58:55 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 }
… …
358 # 60 allows for the watchdog to kill the server. 366 # 60 allows for the watchdog to kill the server.
359 367
360 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
361 and return; 369 and return;
362 370
371 # always fsync - this file is important
363 aio_fsync $fh 372 aio_fsync $fh
364 and return; 373 and return;
365 374
366 close $fh 375 close $fh
367 or return; 376 or return;
… …
752 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
753 762
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
758 close $fh; 767 close $fh;
759 768
760 if (@$objs) { 769 if (@$objs) {
761 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
766 close $fh; 775 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
768 } 777 }
769 } else { 778 } else {
770 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
… …
1070=cut 1079=cut
1071 1080
1072sub maps($) { 1081sub maps($) {
1073 my ($pl) = @_; 1082 my ($pl) = @_;
1074 1083
1084 $pl = ref $pl ? $pl->ob->name : $pl;
1085
1075 my $files = aio_readdir playerdir $pl 1086 my $files = aio_readdir playerdir $pl
1076 or return; 1087 or return;
1077 1088
1078 my @paths; 1089 my @paths;
1079 1090
1080 for (@$files) { 1091 for (@$files) {
1081 utf8::decode $_; 1092 utf8::decode $_;
1082 next if /\.(?:pl|pst)$/; 1093 next if /\.(?:pl|pst)$/;
1083 next unless /^$PATH_SEP/o; 1094 next unless /^$PATH_SEP/o;
1084 1095
1085 push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_; 1096 push @paths, cf::map::normalise "~$pl/$_";
1086 } 1097 }
1087 1098
1088 \@paths 1099 \@paths
1089} 1100}
1090 1101
… …
1251 1262
1252# the original (read-only) location 1263# the original (read-only) location
1253sub load_path { 1264sub load_path {
1254 my ($self) = @_; 1265 my ($self) = @_;
1255 1266
1256 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1267 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1257} 1268}
1258 1269
1259# the temporary/swap location 1270# the temporary/swap location
1260sub save_path { 1271sub save_path {
1261 my ($self) = @_; 1272 my ($self) = @_;
1262 1273
1263 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1274 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1275 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1265} 1276}
1266 1277
1267# the unique path, undef == no special unique path 1278# the unique path, undef == no special unique path
1268sub uniq_path { 1279sub uniq_path {
1269 my ($self) = @_; 1280 my ($self) = @_;
… …
1291 1302
1292sub load_header_from($) { 1303sub load_header_from($) {
1293 my ($self, $path) = @_; 1304 my ($self, $path) = @_;
1294 1305
1295 utf8::encode $path; 1306 utf8::encode $path;
1296 aio_open $path, O_RDONLY, 0 1307 #aio_open $path, O_RDONLY, 0
1297 or return; 1308 # or return;
1298 1309
1299 $self->_load_header ($path) 1310 $self->_load_header ($path)
1300 or return; 1311 or return;
1301 1312
1302 $self->{load_path} = $path; 1313 $self->{load_path} = $path;
… …
1582 return if $self->players; 1593 return if $self->players;
1583 return if $self->isa ("ext::map_per_player");#d# 1594 return if $self->isa ("ext::map_per_player");#d#
1584 1595
1585 warn "resetting map ", $self->path;#d# 1596 warn "resetting map ", $self->path;#d#
1586 1597
1598 $self->in_memory (cf::MAP_SWAPPED);
1599
1600 # need to save uniques path
1601 unless ($self->{deny_save}) {
1602 my $uniq = $self->uniq_path; utf8::encode $uniq;
1603
1604 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1605 if $uniq;
1606 }
1607
1587 delete $cf::MAP{$self->path}; 1608 delete $cf::MAP{$self->path};
1588 1609
1589 $self->in_memory (cf::MAP_SWAPPED);
1590 $self->clear; 1610 $self->clear;
1591 1611
1592 $_->clear_links_to ($self) for values %cf::MAP; 1612 $_->clear_links_to ($self) for values %cf::MAP;
1593 1613
1594 $self->unlink_save; 1614 $self->unlink_save;
… …
1784 $map->load; 1804 $map->load;
1785 $map->load_diag; 1805 $map->load_diag;
1786 1806
1787 return unless $self->contr->active; 1807 return unless $self->contr->active;
1788 $self->activate_recursive; 1808 $self->activate_recursive;
1809
1810 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789 $self->enter_map ($map, $x, $y); 1811 $self->enter_map ($map, $x, $y);
1790} 1812}
1791 1813
1792cf::player->attach ( 1814cf::player->attach (
1793 on_logout => sub { 1815 on_logout => sub {
… …
1806 # try to abort aborted map switching on player login :) 1828 # try to abort aborted map switching on player login :)
1807 # should happen only on crashes 1829 # should happen only on crashes
1808 if ($pl->ob->{_link_pos}) { 1830 if ($pl->ob->{_link_pos}) {
1809 $pl->ob->enter_link; 1831 $pl->ob->enter_link;
1810 (async { 1832 (async {
1811 # we need this sleep as the login has a concurrent enter_exit running
1812 # and this sleep increases chances of the player not ending up in scorn
1813 $pl->ob->reply (undef, 1833 $pl->ob->reply (undef,
1814 "There was an internal problem at your last logout, " 1834 "There was an internal problem at your last logout, "
1815 . "the server will try to bring you to your intended destination in a second.", 1835 . "the server will try to bring you to your intended destination in a second.",
1816 cf::NDI_RED); 1836 cf::NDI_RED);
1837 # we need this sleep as the login has a concurrent enter_exit running
1838 # and this sleep increases chances of the player not ending up in scorn
1817 Coro::Timer::sleep 1; 1839 Coro::Timer::sleep 1;
1818 $pl->ob->leave_link; 1840 $pl->ob->leave_link;
1819 })->prio (2); 1841 })->prio (2);
1820 } 1842 }
1821 }, 1843 },
… …
1987 # get handled first 2009 # get handled first
1988 my $queue = delete $ns->{query_queue} 2010 my $queue = delete $ns->{query_queue}
1989 or return; # be conservative, not sure how that can happen, but we saw a crash here 2011 or return; # be conservative, not sure how that can happen, but we saw a crash here
1990 2012
1991 (shift @$queue)->[1]->($msg); 2013 (shift @$queue)->[1]->($msg);
2014 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992 2015
1993 push @{ $ns->{query_queue} }, @$queue; 2016 push @{ $ns->{query_queue} }, @$queue;
1994 2017
1995 if (@{ $ns->{query_queue} } == @$queue) { 2018 if (@{ $ns->{query_queue} } == @$queue) {
1996 if (@$queue) { 2019 if (@$queue) {
… …
2157The parameter C<$family> should best start with the name of the extension 2180The parameter C<$family> should best start with the name of the extension
2158using it, it should be unique. 2181using it, it should be unique.
2159 2182
2160=over 4 2183=over 4
2161 2184
2162=item $hashref = cf::db_get $family
2163
2164Return a hashref for use by the extension C<$family>, which can be
2165modified. After modifications, you have to call C<cf::db_dirty> or
2166C<cf::db_sync>.
2167
2168=item $value = cf::db_get $family => $key 2185=item $value = cf::db_get $family => $key
2169 2186
2170Returns a single value from the database 2187Returns a single value from the database.
2171
2172=item cf::db_put $family => $hashref
2173
2174Stores the given family hashref into the database. Updates are delayed, if
2175you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176 2188
2177=item cf::db_put $family => $key => $value 2189=item cf::db_put $family => $key => $value
2178 2190
2179Stores the given C<$value> in the family hash. Updates are delayed, if you 2191Stores the given C<$value> in the family.
2180want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182=item cf::db_dirty
2183
2184Marks the database as dirty, to be updated at a later time.
2185
2186=item cf::db_sync
2187
2188Immediately write the database to disk I<if it is dirty>.
2189 2192
2190=cut 2193=cut
2191 2194
2192our $DB; 2195our $DB;
2193 2196
2194{ 2197sub db_init {
2198 unless ($DB) {
2199 $DB = BDB::db_create $DB_ENV;
2200
2201 cf::sync_job {
2202 eval {
2203 $DB->set_flags (BDB::CHKSUM);
2204
2205 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2206 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2207 cf::cleanup "db_open(db): $!" if $!;
2208 };
2209 cf::cleanup "db_open(db): $@" if $@;
2210 };
2211
2195 my $path = cf::localdir . "/database.pst"; 2212 my $path = cf::localdir . "/database.pst";
2213 if (stat $path) {
2214 cf::sync_job {
2215 my $pst = Storable::retrieve $path;
2196 2216
2197 sub db_load() { 2217 cf::db_put (board => data => $pst->{board});
2198 $DB = stat $path ? Storable::retrieve $path : { }; 2218 cf::db_put (guildrules => data => $pst->{guildrules});
2199 } 2219 cf::db_put (rent => balance => $pst->{rent}{balance});
2220 BDB::db_env_txn_checkpoint $DB_ENV;
2200 2221
2201 my $pid; 2222 unlink $path;
2202
2203 sub db_save() {
2204 waitpid $pid, 0 if $pid;
2205 if (0 == ($pid = fork)) {
2206 $DB->{_meta}{version} = 1;
2207 Storable::nstore $DB, "$path~";
2208 rename "$path~", $path;
2209 cf::_exit 0 if defined $pid;
2210 } 2223 };
2211 }
2212
2213 my $dirty;
2214
2215 sub db_sync() {
2216 db_save if $dirty;
2217 undef $dirty;
2218 }
2219
2220 my $idle = Event->idle (
2221 reentrant => 0,
2222 min => 10,
2223 max => 20,
2224 repeat => 0,
2225 data => WF_AUTOCANCEL,
2226 cb => \&db_sync,
2227 );
2228
2229 sub db_dirty() {
2230 $dirty = 1;
2231 $idle->start;
2232 }
2233
2234 sub db_get($;$) {
2235 @_ >= 2
2236 ? $DB->{$_[0]}{$_[1]}
2237 : ($DB->{$_[0]} ||= { })
2238 }
2239
2240 sub db_put($$;$) {
2241 if (@_ >= 3) {
2242 $DB->{$_[0]}{$_[1]} = $_[2];
2243 } else {
2244 $DB->{$_[0]} = $_[1];
2245 }
2246 db_dirty;
2247 }
2248
2249 cf::global->attach (
2250 prio => 10000,
2251 on_cleanup => sub {
2252 db_sync;
2253 }, 2224 }
2254 ); 2225 }
2226}
2227
2228sub db_get($$) {
2229 my $key = "$_[0]/$_[1]";
2230
2231 cf::sync_job {
2232 BDB::db_get $DB, undef, $key, my $data;
2233
2234 $! ? ()
2235 : Compress::LZF::sthaw $data
2236 }
2237}
2238
2239sub db_put($$$) {
2240 BDB::dbreq_pri 4;
2241 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2255} 2242}
2256 2243
2257############################################################################# 2244#############################################################################
2258# the server's main() 2245# the server's init and main functions
2246
2247sub init_resources {
2248 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2249 or die "unable to load regions file\n";#d#
2250}
2259 2251
2260sub cfg_load { 2252sub cfg_load {
2261 open my $fh, "<:utf8", cf::confdir . "/config" 2253 open my $fh, "<:utf8", cf::confdir . "/config"
2262 or return; 2254 or return;
2263 2255
… …
2274 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2266 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2275 and die "WARNING: m(un)lockall failed: $!\n"; 2267 and die "WARNING: m(un)lockall failed: $!\n";
2276 }; 2268 };
2277 warn $@ if $@; 2269 warn $@ if $@;
2278 } 2270 }
2271}
2272
2273sub init {
2274 init_resources;
2279} 2275}
2280 2276
2281sub main { 2277sub main {
2282 # we must not ever block the main coroutine 2278 # we must not ever block the main coroutine
2283 local $Coro::idle = sub { 2279 local $Coro::idle = sub {
… …
2286 Event::one_event; 2282 Event::one_event;
2287 })->prio (Coro::PRIO_MAX); 2283 })->prio (Coro::PRIO_MAX);
2288 }; 2284 };
2289 2285
2290 cfg_load; 2286 cfg_load;
2291 db_load; 2287 db_init;
2292 load_extensions; 2288 load_extensions;
2293 2289
2294 $TICK_WATCHER->start; 2290 $TICK_WATCHER->start;
2295 Event::loop; 2291 Event::loop;
2296} 2292}
… …
2335 my $map = $cf::MAP{$path} or next; 2331 my $map = $cf::MAP{$path} or next;
2336 $map->valid or next; 2332 $map->valid or next;
2337 $map->save; 2333 $map->save;
2338 } 2334 }
2339 warn "end emergency map save\n"; 2335 warn "end emergency map save\n";
2336
2337 warn "begin emergency database checkpoint\n";
2338 BDB::db_env_txn_checkpoint $DB_ENV;
2339 warn "end emergency database checkpoint\n";
2340 }; 2340 };
2341 2341
2342 warn "leave emergency perl save\n"; 2342 warn "leave emergency perl save\n";
2343}
2344
2345sub post_cleanup {
2346 my ($make_core) = @_;
2347
2348 warn Carp::longmess "post_cleanup backtrace"
2349 if $make_core;
2343} 2350}
2344 2351
2345sub reload() { 2352sub reload() {
2346 # can/must only be called in main 2353 # can/must only be called in main
2347 if ($Coro::current != $Coro::main) { 2354 if ($Coro::current != $Coro::main) {
… …
2349 return; 2356 return;
2350 } 2357 }
2351 2358
2352 warn "reloading..."; 2359 warn "reloading...";
2353 2360
2354 warn "cancelling server ticker"; 2361 warn "entering sync_job";
2355 $TICK_WATCHER->cancel;
2356 2362
2363 cf::sync_job {
2364 cf::write_runtime; # external watchdog should not bark
2357 cf::emergency_save; 2365 cf::emergency_save;
2366 cf::write_runtime; # external watchdog should not bark
2358 2367
2359 eval { 2368 warn "syncing database to disk";
2369 BDB::db_env_txn_checkpoint $DB_ENV;
2370
2360 # if anything goes wrong in here, we should simply crash as we already saved 2371 # if anything goes wrong in here, we should simply crash as we already saved
2361
2362 warn "syncing database to disk";
2363 cf::db_sync;
2364 2372
2365 warn "cancelling all WF_AUTOCANCEL watchers"; 2373 warn "cancelling all WF_AUTOCANCEL watchers";
2366 for (Event::all_watchers) { 2374 for (Event::all_watchers) {
2367 $_->cancel if $_->data & WF_AUTOCANCEL; 2375 $_->cancel if $_->data & WF_AUTOCANCEL;
2368 } 2376 }
2369 2377
2370 warn "flushing outstanding aio requests"; 2378 warn "flushing outstanding aio requests";
2371 for (;;) { 2379 for (;;) {
2380 BDB::flush;
2372 IO::AIO::flush; 2381 IO::AIO::flush;
2373 Coro::cede; 2382 Coro::cede;
2374 last unless IO::AIO::nreqs; 2383 last unless IO::AIO::nreqs || BDB::nreqs;
2375 warn "iterate..."; 2384 warn "iterate...";
2376 } 2385 }
2377 2386
2378 warn "cancelling all extension coros"; 2387 warn "cancelling all extension coros";
2379 $_->cancel for values %EXT_CORO; 2388 $_->cancel for values %EXT_CORO;
… …
2434 require cf; 2443 require cf;
2435 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2444 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436 2445
2437 warn "loading config and database again"; 2446 warn "loading config and database again";
2438 cf::cfg_load; 2447 cf::cfg_load;
2439 cf::db_load;
2440 2448
2441 warn "loading extensions"; 2449 warn "loading extensions";
2442 cf::load_extensions; 2450 cf::load_extensions;
2443 2451
2444 warn "reattaching attachments to objects/players"; 2452 warn "reattaching attachments to objects/players";
2445 _global_reattach; 2453 _global_reattach;
2446 warn "reattaching attachments to maps"; 2454 warn "reattaching attachments to maps";
2447 reattach $_ for values %MAP; 2455 reattach $_ for values %MAP;
2448 2456
2449 warn "restarting server ticker"; 2457 warn "loading reloadable resources";
2458 init_resources;
2450 2459
2451 $TICK_WATCHER->start; 2460 warn "leaving sync_job";
2452 };
2453 2461
2454 if ($@) { 2462 1
2463 } or do {
2455 warn $@; 2464 warn $@;
2456 warn "error while reloading, exiting."; 2465 warn "error while reloading, exiting.";
2457 exit 1; 2466 exit 1;
2458 } 2467 };
2459 2468
2460 warn "reloaded"; 2469 warn "reloaded";
2461}; 2470};
2462 2471
2463our $RELOAD_WATCHER; # used only during reload 2472our $RELOAD_WATCHER; # used only during reload
… …
2504 2513
2505 cf::server_tick; # one server iteration 2514 cf::server_tick; # one server iteration
2506 $RUNTIME += $TICK; 2515 $RUNTIME += $TICK;
2507 $NEXT_TICK += $TICK; 2516 $NEXT_TICK += $TICK;
2508 2517
2518 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519 $NEXT_RUNTIME_WRITE = $NOW + 10;
2520 Coro::async_pool {
2521 write_runtime
2522 or warn "ERROR: unable to write runtime file: $!";
2523 };
2524 }
2525
2509 $WAIT_FOR_TICK->broadcast; 2526 $WAIT_FOR_TICK->broadcast;
2510 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2511 2528
2512 Event::sweep;
2513 Coro::cede_notself;
2514
2515# my $AFTER = Event::time; 2529# my $AFTER = Event::time;
2516# warn $AFTER - $NOW;#d# 2530# warn $AFTER - $NOW;#d#
2517 2531
2518 # if we are delayed by four ticks or more, skip them all 2532 # if we are delayed by four ticks or more, skip them all
2519 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2533 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2521 $TICK_WATCHER->at ($NEXT_TICK); 2535 $TICK_WATCHER->at ($NEXT_TICK);
2522 $TICK_WATCHER->start; 2536 $TICK_WATCHER->start;
2523 }, 2537 },
2524); 2538);
2525 2539
2540{
2541 BDB::max_poll_time $TICK * 0.1;
2542 $BDB_POLL_WATCHER = Event->io (
2543 reentrant => 0,
2544 fd => BDB::poll_fileno,
2545 poll => 'r',
2546 prio => 0,
2547 data => WF_AUTOCANCEL,
2548 cb => \&BDB::poll_cb,
2549 );
2550 BDB::min_parallel 8;
2551
2552 BDB::set_sync_prepare {
2553 my $status;
2554 my $current = $Coro::current;
2555 (
2556 sub {
2557 $status = $!;
2558 $current->ready; undef $current;
2559 },
2560 sub {
2561 Coro::schedule while defined $current;
2562 $! = $status;
2563 },
2564 )
2565 };
2566
2567 unless ($DB_ENV) {
2568 $DB_ENV = BDB::db_env_create;
2569
2570 cf::sync_job {
2571 eval {
2572 BDB::db_env_open
2573 $DB_ENV,
2574 $BDB_ENV_DIR,
2575 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2576 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2577 0666;
2578
2579 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2580
2581 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2582 $DB_ENV->set_lk_detect;
2583 };
2584
2585 cf::cleanup "db_env_open(db): $@" if $@;
2586 };
2587 }
2588}
2589
2590{
2591 IO::AIO::min_parallel 8;
2592
2593 undef $Coro::AIO::WATCHER;
2526IO::AIO::max_poll_time $TICK * 0.1; 2594 IO::AIO::max_poll_time $TICK * 0.1;
2527
2528undef $Coro::AIO::WATCHER;
2529$AIO_POLL_WATCHER = Event->io ( 2595 $AIO_POLL_WATCHER = Event->io (
2530 reentrant => 0, 2596 reentrant => 0,
2597 data => WF_AUTOCANCEL,
2531 fd => IO::AIO::poll_fileno, 2598 fd => IO::AIO::poll_fileno,
2532 poll => 'r', 2599 poll => 'r',
2533 prio => 6, 2600 prio => 6,
2534 data => WF_AUTOCANCEL,
2535 cb => \&IO::AIO::poll_cb, 2601 cb => \&IO::AIO::poll_cb,
2536); 2602 );
2537 2603}
2538$WRITE_RUNTIME_WATCHER = Event->timer (
2539 reentrant => 0,
2540 data => WF_AUTOCANCEL,
2541 after => 1,
2542 interval => 10,
2543 prio => 6, # keep it lowest so it acts like a watchdog
2544 cb => Coro::unblock_sub {
2545 write_runtime
2546 or warn "ERROR: unable to write runtime file: $!";
2547 },
2548);
2549 2604
2550END { cf::emergency_save } 2605END { cf::emergency_save }
2551 2606
25521 26071
2553 2608

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