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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.188 by root, Sat Jan 20 23:30:16 2007 UTC vs.
Revision 1.218 by root, Sat Feb 17 01:58:55 2007 UTC

… …
8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.4 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
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;
97
98sub cf::map::normalise;
87 99
88############################################################################# 100#############################################################################
89 101
90=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
91 103
… …
261sub freeze_mainloop { 273sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
263 275
264 my $guard = Coro::guard { 276 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 277 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 278 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
270 $guard 280 $guard
271} 281}
272 282
273=item cf::async { BLOCK } 283=item cf::async { BLOCK }
… …
356 # 60 allows for the watchdog to kill the server. 366 # 60 allows for the watchdog to kill the server.
357 367
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 369 and return;
360 370
371 # always fsync - this file is important
361 aio_fsync $fh 372 aio_fsync $fh
362 and return; 373 and return;
363 374
364 close $fh 375 close $fh
365 or return; 376 or return;
… …
750 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
751 762
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 767 close $fh;
757 768
758 if (@$objs) { 769 if (@$objs) {
759 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) {
760 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 775 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
766 } 777 }
767 } else { 778 } else {
768 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
… …
1068=cut 1079=cut
1069 1080
1070sub maps($) { 1081sub maps($) {
1071 my ($pl) = @_; 1082 my ($pl) = @_;
1072 1083
1084 $pl = ref $pl ? $pl->ob->name : $pl;
1085
1073 my $files = aio_readdir playerdir $pl 1086 my $files = aio_readdir playerdir $pl
1074 or return; 1087 or return;
1075 1088
1076 my @paths; 1089 my @paths;
1077 1090
1078 for (@$files) { 1091 for (@$files) {
1079 utf8::decode $_; 1092 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1093 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1094 next unless /^$PATH_SEP/o;
1082 1095
1083 s/\.map$//; 1096 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1097 }
1086 1098
1087 \@paths 1099 \@paths
1088} 1100}
1089 1101
… …
1176} 1188}
1177 1189
1178sub normalise { 1190sub normalise {
1179 my ($path, $base) = @_; 1191 my ($path, $base) = @_;
1180 1192
1193 $path = "$path"; # make sure its a string
1194
1195 $path =~ s/\.map$//;
1196
1181 # map plan: 1197 # map plan:
1182 # 1198 #
1183 # /! non-realised random map exit (special hack!) 1199 # /! non-realised random map exit (special hack!)
1184 # {... are special paths that are not being touched 1200 # {... are special paths that are not being touched
1185 # ?xxx/... are special absolute paths 1201 # ?xxx/... are special absolute paths
… …
1221 $self->init; # pass $1 etc. 1237 $self->init; # pass $1 etc.
1222 return $self; 1238 return $self;
1223 } 1239 }
1224 } 1240 }
1225 1241
1226 Carp::carp "unable to resolve path '$path'."; 1242 Carp::carp "unable to resolve path '$path' (base '$base').";
1227 () 1243 ()
1228} 1244}
1229 1245
1230sub init { 1246sub init {
1231 my ($self) = @_; 1247 my ($self) = @_;
… …
1246 1262
1247# the original (read-only) location 1263# the original (read-only) location
1248sub load_path { 1264sub load_path {
1249 my ($self) = @_; 1265 my ($self) = @_;
1250 1266
1251 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1267 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1252} 1268}
1253 1269
1254# the temporary/swap location 1270# the temporary/swap location
1255sub save_path { 1271sub save_path {
1256 my ($self) = @_; 1272 my ($self) = @_;
1257 1273
1258 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1274 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1275 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1260} 1276}
1261 1277
1262# the unique path, undef == no special unique path 1278# the unique path, undef == no special unique path
1263sub uniq_path { 1279sub uniq_path {
1264 my ($self) = @_; 1280 my ($self) = @_;
… …
1286 1302
1287sub load_header_from($) { 1303sub load_header_from($) {
1288 my ($self, $path) = @_; 1304 my ($self, $path) = @_;
1289 1305
1290 utf8::encode $path; 1306 utf8::encode $path;
1291 aio_open $path, O_RDONLY, 0 1307 #aio_open $path, O_RDONLY, 0
1292 or return; 1308 # or return;
1293 1309
1294 $self->_load_header ($path) 1310 $self->_load_header ($path)
1295 or return; 1311 or return;
1296 1312
1297 $self->{load_path} = $path; 1313 $self->{load_path} = $path;
… …
1360 $map->{last_save} = $cf::RUNTIME; 1376 $map->{last_save} = $cf::RUNTIME;
1361 1377
1362 $map->load_header 1378 $map->load_header
1363 or return; 1379 or return;
1364 1380
1365 if ($map->should_reset) { 1381 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1366 # doing this can freeze the server in a sync job, obviously 1382 # doing this can freeze the server in a sync job, obviously
1367 #$cf::WAIT_FOR_TICK->wait; 1383 #$cf::WAIT_FOR_TICK->wait;
1368 $map->reset; 1384 $map->reset;
1369 undef $guard; 1385 undef $guard;
1370 $map = find $path 1386 return find $path;
1371 or return;
1372 } 1387 }
1373 1388
1374 $cf::MAP{$path} = $map 1389 $cf::MAP{$path} = $map
1375 } 1390 }
1376} 1391}
… …
1378sub pre_load { } 1393sub pre_load { }
1379sub post_load { } 1394sub post_load { }
1380 1395
1381sub load { 1396sub load {
1382 my ($self) = @_; 1397 my ($self) = @_;
1398
1399 local $self->{deny_reset} = 1; # loading can take a long time
1383 1400
1384 my $path = $self->{path}; 1401 my $path = $self->{path};
1385 my $guard = cf::lock_acquire "map_load:$path"; 1402 my $guard = cf::lock_acquire "map_load:$path";
1386 1403
1387 return if $self->in_memory != cf::MAP_SWAPPED; 1404 return if $self->in_memory != cf::MAP_SWAPPED;
… …
1496 delete $MAP_PREFETCH{$path}; 1513 delete $MAP_PREFETCH{$path};
1497 } 1514 }
1498 } 1515 }
1499 undef $MAP_PREFETCHER; 1516 undef $MAP_PREFETCHER;
1500 }; 1517 };
1518 $MAP_PREFETCHER->prio (6);
1501 1519
1502 () 1520 ()
1503} 1521}
1504 1522
1505sub save { 1523sub save {
… …
1575 return if $self->players; 1593 return if $self->players;
1576 return if $self->isa ("ext::map_per_player");#d# 1594 return if $self->isa ("ext::map_per_player");#d#
1577 1595
1578 warn "resetting map ", $self->path;#d# 1596 warn "resetting map ", $self->path;#d#
1579 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
1580 delete $cf::MAP{$self->path}; 1608 delete $cf::MAP{$self->path};
1581 1609
1582 $self->in_memory (cf::MAP_SWAPPED);
1583 $self->clear; 1610 $self->clear;
1584 1611
1585 $_->clear_links_to ($self) for values %cf::MAP; 1612 $_->clear_links_to ($self) for values %cf::MAP;
1586 1613
1587 $self->unlink_save; 1614 $self->unlink_save;
… …
1624 for (@$files) { 1651 for (@$files) {
1625 utf8::decode $_; 1652 utf8::decode $_;
1626 next if /\.pst$/; 1653 next if /\.pst$/;
1627 next unless /^$PATH_SEP/o; 1654 next unless /^$PATH_SEP/o;
1628 1655
1629 s/\.map$//; 1656 push @paths, cf::map::normalise $_;
1630 push @paths, $_;
1631 } 1657 }
1632 1658
1633 \@paths 1659 \@paths
1634} 1660}
1635 1661
… …
1729=cut 1755=cut
1730 1756
1731sub link_map { 1757sub link_map {
1732 unless ($LINK_MAP) { 1758 unless ($LINK_MAP) {
1733 $LINK_MAP = cf::map::find "{link}" 1759 $LINK_MAP = cf::map::find "{link}"
1734 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1760 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1735 $LINK_MAP->load; 1761 $LINK_MAP->load;
1736 } 1762 }
1737 1763
1738 $LINK_MAP 1764 $LINK_MAP
1739} 1765}
… …
1746 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1772 return if UNIVERSAL::isa $self->map, "ext::map_link";
1747 1773
1748 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1774 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1749 if $self->map; 1775 if $self->map;
1750 1776
1751 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1777 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1752} 1778}
1753 1779
1754sub cf::object::player::leave_link { 1780sub cf::object::player::leave_link {
1755 my ($self, $map, $x, $y) = @_; 1781 my ($self, $map, $x, $y) = @_;
1756 1782
… …
1778 $map->load; 1804 $map->load;
1779 $map->load_diag; 1805 $map->load_diag;
1780 1806
1781 return unless $self->contr->active; 1807 return unless $self->contr->active;
1782 $self->activate_recursive; 1808 $self->activate_recursive;
1809
1810 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1783 $self->enter_map ($map, $x, $y); 1811 $self->enter_map ($map, $x, $y);
1784} 1812}
1785 1813
1786cf::player->attach ( 1814cf::player->attach (
1787 on_logout => sub { 1815 on_logout => sub {
… …
1800 # try to abort aborted map switching on player login :) 1828 # try to abort aborted map switching on player login :)
1801 # should happen only on crashes 1829 # should happen only on crashes
1802 if ($pl->ob->{_link_pos}) { 1830 if ($pl->ob->{_link_pos}) {
1803 $pl->ob->enter_link; 1831 $pl->ob->enter_link;
1804 (async { 1832 (async {
1805 # we need this sleep as the login has a concurrent enter_exit running
1806 # and this sleep increases chances of the player not ending up in scorn
1807 $pl->ob->reply (undef, 1833 $pl->ob->reply (undef,
1808 "There was an internal problem at your last logout, " 1834 "There was an internal problem at your last logout, "
1809 . "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.",
1810 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
1811 Coro::Timer::sleep 1; 1839 Coro::Timer::sleep 1;
1812 $pl->ob->leave_link; 1840 $pl->ob->leave_link;
1813 })->prio (2); 1841 })->prio (2);
1814 } 1842 }
1815 }, 1843 },
… …
1823 my ($self, $path, $x, $y) = @_; 1851 my ($self, $path, $x, $y) = @_;
1824 1852
1825 $self->enter_link; 1853 $self->enter_link;
1826 1854
1827 (async { 1855 (async {
1856 my $map = eval {
1828 my $map = cf::map::find $path; 1857 my $map = cf::map::find $path;
1829 $map = $map->customise_for ($self) if $map; 1858 $map = $map->customise_for ($self) if $map;
1830 1859 $map
1831# warn "entering ", $map->path, " at ($x, $y)\n" 1860 } or
1832# if $map;
1833
1834 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1861 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1835 1862
1836 $self->leave_link ($map, $x, $y); 1863 $self->leave_link ($map, $x, $y);
1837 })->prio (1); 1864 })->prio (1);
1838} 1865}
1839 1866
… …
1870 # that depends on the exit object 1897 # that depends on the exit object
1871 1898
1872 my $rmp = parse_random_map_params $exit->msg; 1899 my $rmp = parse_random_map_params $exit->msg;
1873 1900
1874 if ($exit->map) { 1901 if ($exit->map) {
1875 $rmp->{region} = $exit->map->region_name; 1902 $rmp->{region} = $exit->region->name;
1876 $rmp->{origin_map} = $exit->map->path; 1903 $rmp->{origin_map} = $exit->map->path;
1877 $rmp->{origin_x} = $exit->x; 1904 $rmp->{origin_x} = $exit->x;
1878 $rmp->{origin_y} = $exit->y; 1905 $rmp->{origin_y} = $exit->y;
1879 } 1906 }
1880 1907
… …
1897sub cf::object::player::enter_exit { 1924sub cf::object::player::enter_exit {
1898 my ($self, $exit) = @_; 1925 my ($self, $exit) = @_;
1899 1926
1900 return unless $self->type == cf::PLAYER; 1927 return unless $self->type == cf::PLAYER;
1901 1928
1929 if ($exit->slaying eq "/!") {
1930 #TODO: this should de-fi-ni-te-ly not be a sync-job
1931 cf::sync_job { prepare_random_map $exit };
1932 }
1933
1934 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1935 my $hp = $exit->stats->hp;
1936 my $sp = $exit->stats->sp;
1937
1902 $self->enter_link; 1938 $self->enter_link;
1903 1939
1904 (async { 1940 (async {
1905 $self->deactivate_recursive; # just to be sure 1941 $self->deactivate_recursive; # just to be sure
1906 unless (eval { 1942 unless (eval {
1907 prepare_random_map $exit 1943 $self->goto ($slaying, $hp, $sp);
1908 if $exit->slaying eq "/!";
1909
1910 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1911 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1912 1944
1913 1; 1945 1;
1914 }) { 1946 }) {
1915 $self->message ("Something went wrong deep within the crossfire server. " 1947 $self->message ("Something went wrong deep within the crossfire server. "
1916 . "I'll try to bring you back to the map you were before. " 1948 . "I'll try to bring you back to the map you were before. "
… …
1977 # get handled first 2009 # get handled first
1978 my $queue = delete $ns->{query_queue} 2010 my $queue = delete $ns->{query_queue}
1979 or return; # be conservative, not sure how that can happen, but we saw a crash here 2011 or return; # be conservative, not sure how that can happen, but we saw a crash here
1980 2012
1981 (shift @$queue)->[1]->($msg); 2013 (shift @$queue)->[1]->($msg);
2014 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1982 2015
1983 push @{ $ns->{query_queue} }, @$queue; 2016 push @{ $ns->{query_queue} }, @$queue;
1984 2017
1985 if (@{ $ns->{query_queue} } == @$queue) { 2018 if (@{ $ns->{query_queue} } == @$queue) {
1986 if (@$queue) { 2019 if (@$queue) {
… …
2147The 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
2148using it, it should be unique. 2181using it, it should be unique.
2149 2182
2150=over 4 2183=over 4
2151 2184
2152=item $hashref = cf::db_get $family
2153
2154Return a hashref for use by the extension C<$family>, which can be
2155modified. After modifications, you have to call C<cf::db_dirty> or
2156C<cf::db_sync>.
2157
2158=item $value = cf::db_get $family => $key 2185=item $value = cf::db_get $family => $key
2159 2186
2160Returns a single value from the database 2187Returns a single value from the database.
2161
2162=item cf::db_put $family => $hashref
2163
2164Stores the given family hashref into the database. Updates are delayed, if
2165you want the data to be synced to disk immediately, use C<cf::db_sync>.
2166 2188
2167=item cf::db_put $family => $key => $value 2189=item cf::db_put $family => $key => $value
2168 2190
2169Stores the given C<$value> in the family hash. Updates are delayed, if you 2191Stores the given C<$value> in the family.
2170want the data to be synced to disk immediately, use C<cf::db_sync>.
2171
2172=item cf::db_dirty
2173
2174Marks the database as dirty, to be updated at a later time.
2175
2176=item cf::db_sync
2177
2178Immediately write the database to disk I<if it is dirty>.
2179 2192
2180=cut 2193=cut
2181 2194
2182our $DB; 2195our $DB;
2183 2196
2184{ 2197sub db_init {
2198 unless ($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
2185 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;
2186 2216
2187 sub db_load() { 2217 cf::db_put (board => data => $pst->{board});
2188 $DB = stat $path ? Storable::retrieve $path : { }; 2218 cf::db_put (guildrules => data => $pst->{guildrules});
2189 } 2219 cf::db_put (rent => balance => $pst->{rent}{balance});
2220 BDB::db_env_txn_checkpoint $DB_ENV;
2190 2221
2191 my $pid; 2222 unlink $path;
2192
2193 sub db_save() {
2194 waitpid $pid, 0 if $pid;
2195 if (0 == ($pid = fork)) {
2196 $DB->{_meta}{version} = 1;
2197 Storable::nstore $DB, "$path~";
2198 rename "$path~", $path;
2199 cf::_exit 0 if defined $pid;
2200 } 2223 };
2201 }
2202
2203 my $dirty;
2204
2205 sub db_sync() {
2206 db_save if $dirty;
2207 undef $dirty;
2208 }
2209
2210 my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2211 db_sync;
2212 });
2213
2214 sub db_dirty() {
2215 $dirty = 1;
2216 $idle->start;
2217 }
2218
2219 sub db_get($;$) {
2220 @_ >= 2
2221 ? $DB->{$_[0]}{$_[1]}
2222 : ($DB->{$_[0]} ||= { })
2223 }
2224
2225 sub db_put($$;$) {
2226 if (@_ >= 3) {
2227 $DB->{$_[0]}{$_[1]} = $_[2];
2228 } else {
2229 $DB->{$_[0]} = $_[1];
2230 }
2231 db_dirty;
2232 }
2233
2234 cf::global->attach (
2235 prio => 10000,
2236 on_cleanup => sub {
2237 db_sync;
2238 }, 2224 }
2239 ); 2225 }
2226}
2227
2228sub db_get($$) {
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 { };
2240} 2242}
2241 2243
2242############################################################################# 2244#############################################################################
2243# 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}
2244 2251
2245sub cfg_load { 2252sub cfg_load {
2246 open my $fh, "<:utf8", cf::confdir . "/config" 2253 open my $fh, "<:utf8", cf::confdir . "/config"
2247 or return; 2254 or return;
2248 2255
… …
2259 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2266 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2260 and die "WARNING: m(un)lockall failed: $!\n"; 2267 and die "WARNING: m(un)lockall failed: $!\n";
2261 }; 2268 };
2262 warn $@ if $@; 2269 warn $@ if $@;
2263 } 2270 }
2271}
2272
2273sub init {
2274 init_resources;
2264} 2275}
2265 2276
2266sub main { 2277sub main {
2267 # we must not ever block the main coroutine 2278 # we must not ever block the main coroutine
2268 local $Coro::idle = sub { 2279 local $Coro::idle = sub {
… …
2271 Event::one_event; 2282 Event::one_event;
2272 })->prio (Coro::PRIO_MAX); 2283 })->prio (Coro::PRIO_MAX);
2273 }; 2284 };
2274 2285
2275 cfg_load; 2286 cfg_load;
2276 db_load; 2287 db_init;
2277 load_extensions; 2288 load_extensions;
2278 2289
2279 $TICK_WATCHER->start; 2290 $TICK_WATCHER->start;
2280 Event::loop; 2291 Event::loop;
2281} 2292}
… …
2285 2296
2286# install some emergency cleanup handlers 2297# install some emergency cleanup handlers
2287BEGIN { 2298BEGIN {
2288 for my $signal (qw(INT HUP TERM)) { 2299 for my $signal (qw(INT HUP TERM)) {
2289 Event->signal ( 2300 Event->signal (
2301 reentrant => 0,
2290 data => WF_AUTOCANCEL, 2302 data => WF_AUTOCANCEL,
2291 signal => $signal, 2303 signal => $signal,
2304 prio => 0,
2292 cb => sub { 2305 cb => sub {
2293 cf::cleanup "SIG$signal"; 2306 cf::cleanup "SIG$signal";
2294 }, 2307 },
2295 ); 2308 );
2296 } 2309 }
2297} 2310}
… …
2318 my $map = $cf::MAP{$path} or next; 2331 my $map = $cf::MAP{$path} or next;
2319 $map->valid or next; 2332 $map->valid or next;
2320 $map->save; 2333 $map->save;
2321 } 2334 }
2322 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 $DB_ENV;
2339 warn "end emergency database checkpoint\n";
2323 }; 2340 };
2324 2341
2325 warn "leave emergency perl save\n"; 2342 warn "leave emergency perl save\n";
2343}
2344
2345sub post_cleanup {
2346 my ($make_core) = @_;
2347
2348 warn Carp::longmess "post_cleanup backtrace"
2349 if $make_core;
2326} 2350}
2327 2351
2328sub reload() { 2352sub reload() {
2329 # can/must only be called in main 2353 # can/must only be called in main
2330 if ($Coro::current != $Coro::main) { 2354 if ($Coro::current != $Coro::main) {
… …
2332 return; 2356 return;
2333 } 2357 }
2334 2358
2335 warn "reloading..."; 2359 warn "reloading...";
2336 2360
2337 warn "cancelling server ticker"; 2361 warn "entering sync_job";
2338 $TICK_WATCHER->cancel;
2339 2362
2363 cf::sync_job {
2364 cf::write_runtime; # external watchdog should not bark
2340 cf::emergency_save; 2365 cf::emergency_save;
2366 cf::write_runtime; # external watchdog should not bark
2341 2367
2342 eval { 2368 warn "syncing database to disk";
2369 BDB::db_env_txn_checkpoint $DB_ENV;
2370
2343 # 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
2344
2345 warn "syncing database to disk";
2346 cf::db_sync;
2347 2372
2348 warn "cancelling all WF_AUTOCANCEL watchers"; 2373 warn "cancelling all WF_AUTOCANCEL watchers";
2349 for (Event::all_watchers) { 2374 for (Event::all_watchers) {
2350 $_->cancel if $_->data & WF_AUTOCANCEL; 2375 $_->cancel if $_->data & WF_AUTOCANCEL;
2351 } 2376 }
2352 2377
2353 warn "flushing outstanding aio requests"; 2378 warn "flushing outstanding aio requests";
2354 for (;;) { 2379 for (;;) {
2380 BDB::flush;
2355 IO::AIO::flush; 2381 IO::AIO::flush;
2356 Coro::cede; 2382 Coro::cede;
2357 last unless IO::AIO::nreqs; 2383 last unless IO::AIO::nreqs || BDB::nreqs;
2358 warn "iterate..."; 2384 warn "iterate...";
2359 } 2385 }
2360 2386
2361 warn "cancelling all extension coros"; 2387 warn "cancelling all extension coros";
2362 $_->cancel for values %EXT_CORO; 2388 $_->cancel for values %EXT_CORO;
… …
2417 require cf; 2443 require cf;
2418 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2444 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2419 2445
2420 warn "loading config and database again"; 2446 warn "loading config and database again";
2421 cf::cfg_load; 2447 cf::cfg_load;
2422 cf::db_load;
2423 2448
2424 warn "loading extensions"; 2449 warn "loading extensions";
2425 cf::load_extensions; 2450 cf::load_extensions;
2426 2451
2427 warn "reattaching attachments to objects/players"; 2452 warn "reattaching attachments to objects/players";
2428 _global_reattach; 2453 _global_reattach;
2429 warn "reattaching attachments to maps"; 2454 warn "reattaching attachments to maps";
2430 reattach $_ for values %MAP; 2455 reattach $_ for values %MAP;
2431 2456
2432 warn "restarting server ticker"; 2457 warn "loading reloadable resources";
2458 init_resources;
2433 2459
2434 $TICK_WATCHER->start; 2460 warn "leaving sync_job";
2435 };
2436 2461
2437 if ($@) { 2462 1
2463 } or do {
2438 warn $@; 2464 warn $@;
2439 warn "error while reloading, exiting."; 2465 warn "error while reloading, exiting.";
2440 exit 1; 2466 exit 1;
2441 } 2467 };
2442 2468
2443 warn "reloaded"; 2469 warn "reloaded";
2444}; 2470};
2445 2471
2446our $RELOAD_WATCHER; # used only during reload 2472our $RELOAD_WATCHER; # used only during reload
… …
2452 $who->message ("reloading server."); 2478 $who->message ("reloading server.");
2453 2479
2454 # doing reload synchronously and two reloads happen back-to-back, 2480 # doing reload synchronously and two reloads happen back-to-back,
2455 # coro crashes during coro_state_free->destroy here. 2481 # coro crashes during coro_state_free->destroy here.
2456 2482
2457 $RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub { 2483 $RELOAD_WATCHER ||= Event->timer (
2484 reentrant => 0,
2485 after => 0,
2486 data => WF_AUTOCANCEL,
2487 cb => sub {
2458 reload; 2488 reload;
2459 undef $RELOAD_WATCHER; 2489 undef $RELOAD_WATCHER;
2490 },
2460 }); 2491 );
2461 } 2492 }
2462}; 2493};
2463 2494
2464unshift @INC, $LIBDIR; 2495unshift @INC, $LIBDIR;
2465 2496
… …
2482 2513
2483 cf::server_tick; # one server iteration 2514 cf::server_tick; # one server iteration
2484 $RUNTIME += $TICK; 2515 $RUNTIME += $TICK;
2485 $NEXT_TICK += $TICK; 2516 $NEXT_TICK += $TICK;
2486 2517
2518 if ($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
2487 $WAIT_FOR_TICK->broadcast; 2526 $WAIT_FOR_TICK->broadcast;
2488 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2528
2529# my $AFTER = Event::time;
2530# warn $AFTER - $NOW;#d#
2489 2531
2490 # 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
2491 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2533 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2492 2534
2493 $TICK_WATCHER->at ($NEXT_TICK); 2535 $TICK_WATCHER->at ($NEXT_TICK);
2494 $TICK_WATCHER->start; 2536 $TICK_WATCHER->start;
2495 }, 2537 },
2496); 2538);
2497 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;
2498IO::AIO::max_poll_time $TICK * 0.2; 2594 IO::AIO::max_poll_time $TICK * 0.1;
2499
2500$AIO_POLL_WATCHER = Event->io ( 2595 $AIO_POLL_WATCHER = Event->io (
2501 fd => IO::AIO::poll_fileno, 2596 reentrant => 0,
2502 poll => 'r',
2503 prio => 5,
2504 data => WF_AUTOCANCEL,
2505 cb => \&IO::AIO::poll_cb,
2506);
2507
2508$WRITE_RUNTIME_WATCHER = Event->timer (
2509 data => WF_AUTOCANCEL, 2597 data => WF_AUTOCANCEL,
2510 after => 1, 2598 fd => IO::AIO::poll_fileno,
2511 interval => 10, 2599 poll => 'r',
2512 prio => 6, # keep it lowest so it acts like a watchdog 2600 prio => 6,
2513 cb => Coro::unblock_sub { 2601 cb => \&IO::AIO::poll_cb,
2514 write_runtime 2602 );
2515 or warn "ERROR: unable to write runtime file: $!"; 2603}
2516 },
2517);
2518 2604
2519END { cf::emergency_save } 2605END { cf::emergency_save }
2520 2606
25211 26071
2522 2608

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