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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.193 by root, Wed Jan 24 16:29:10 2007 UTC vs.
Revision 1.222 by root, Tue Mar 6 03:06:00 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;
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 }
… …
344 354
345 $coro 355 $coro
346} 356}
347 357
348sub write_runtime { 358sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime";
360
349 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
350 362
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 364 or return;
353 365
… …
356 # 60 allows for the watchdog to kill the server. 368 # 60 allows for the watchdog to kill the server.
357 369
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 371 and return;
360 372
373 # always fsync - this file is important
361 aio_fsync $fh 374 aio_fsync $fh
362 and return; 375 and return;
363 376
364 close $fh 377 close $fh
365 or return; 378 or return;
… …
750 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
751 764
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 769 close $fh;
757 770
758 if (@$objs) { 771 if (@$objs) {
759 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) {
760 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 777 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
766 } 779 }
767 } else { 780 } else {
768 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
… …
1017=cut 1030=cut
1018 1031
1019sub quit_character { 1032sub quit_character {
1020 my ($pl) = @_; 1033 my ($pl) = @_;
1021 1034
1035 my $name = $pl->ob->name;
1036
1022 $pl->{deny_save} = 1; 1037 $pl->{deny_save} = 1;
1023 $pl->password ("*"); # this should lock out the player until we nuked the dir 1038 $pl->password ("*"); # this should lock out the player until we nuked the dir
1024 1039
1025 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1040 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026 $pl->deactivate; 1041 $pl->deactivate;
… …
1030 my $path = playerdir $pl; 1045 my $path = playerdir $pl;
1031 my $temp = "$path~$cf::RUNTIME~deleting~"; 1046 my $temp = "$path~$cf::RUNTIME~deleting~";
1032 aio_rename $path, $temp; 1047 aio_rename $path, $temp;
1033 delete $cf::PLAYER{$pl->ob->name}; 1048 delete $cf::PLAYER{$pl->ob->name};
1034 $pl->destroy; 1049 $pl->destroy;
1050
1051 my $prefix = qr<^~\Q$name\E/>;
1052
1053 # nuke player maps
1054 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055
1035 IO::AIO::aio_rmtree $temp; 1056 IO::AIO::aio_rmtree $temp;
1057}
1058
1059=item $pl->kick
1060
1061Kicks a player out of the game. This destroys the connection.
1062
1063=cut
1064
1065sub kick {
1066 my ($pl, $kicker) = @_;
1067
1068 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1069 $pl->killer ("kicked");
1070 $pl->ns->destroy;
1036} 1071}
1037 1072
1038=item cf::player::list_logins 1073=item cf::player::list_logins
1039 1074
1040Returns am arrayref of all valid playernames in the system, can take a 1075Returns am arrayref of all valid playernames in the system, can take a
… …
1068=cut 1103=cut
1069 1104
1070sub maps($) { 1105sub maps($) {
1071 my ($pl) = @_; 1106 my ($pl) = @_;
1072 1107
1108 $pl = ref $pl ? $pl->ob->name : $pl;
1109
1073 my $files = aio_readdir playerdir $pl 1110 my $files = aio_readdir playerdir $pl
1074 or return; 1111 or return;
1075 1112
1076 my @paths; 1113 my @paths;
1077 1114
1078 for (@$files) { 1115 for (@$files) {
1079 utf8::decode $_; 1116 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1117 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1118 next unless /^$PATH_SEP/o;
1082 1119
1083 s/\.map$//; 1120 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1121 }
1086 1122
1087 \@paths 1123 \@paths
1088} 1124}
1089 1125
… …
1178sub normalise { 1214sub normalise {
1179 my ($path, $base) = @_; 1215 my ($path, $base) = @_;
1180 1216
1181 $path = "$path"; # make sure its a string 1217 $path = "$path"; # make sure its a string
1182 1218
1219 $path =~ s/\.map$//;
1220
1183 # map plan: 1221 # map plan:
1184 # 1222 #
1185 # /! non-realised random map exit (special hack!) 1223 # /! non-realised random map exit (special hack!)
1186 # {... are special paths that are not being touched 1224 # {... are special paths that are not being touched
1187 # ?xxx/... are special absolute paths 1225 # ?xxx/... are special absolute paths
… …
1248 1286
1249# the original (read-only) location 1287# the original (read-only) location
1250sub load_path { 1288sub load_path {
1251 my ($self) = @_; 1289 my ($self) = @_;
1252 1290
1253 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1291 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1254} 1292}
1255 1293
1256# the temporary/swap location 1294# the temporary/swap location
1257sub save_path { 1295sub save_path {
1258 my ($self) = @_; 1296 my ($self) = @_;
1259 1297
1260 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1298 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1299 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1262} 1300}
1263 1301
1264# the unique path, undef == no special unique path 1302# the unique path, undef == no special unique path
1265sub uniq_path { 1303sub uniq_path {
1266 my ($self) = @_; 1304 my ($self) = @_;
… …
1288 1326
1289sub load_header_from($) { 1327sub load_header_from($) {
1290 my ($self, $path) = @_; 1328 my ($self, $path) = @_;
1291 1329
1292 utf8::encode $path; 1330 utf8::encode $path;
1293 aio_open $path, O_RDONLY, 0 1331 #aio_open $path, O_RDONLY, 0
1294 or return; 1332 # or return;
1295 1333
1296 $self->_load_header ($path) 1334 $self->_load_header ($path)
1297 or return; 1335 or return;
1298 1336
1299 $self->{load_path} = $path; 1337 $self->{load_path} = $path;
… …
1362 $map->{last_save} = $cf::RUNTIME; 1400 $map->{last_save} = $cf::RUNTIME;
1363 1401
1364 $map->load_header 1402 $map->load_header
1365 or return; 1403 or return;
1366 1404
1367 if ($map->should_reset) { 1405 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1368 # doing this can freeze the server in a sync job, obviously 1406 # doing this can freeze the server in a sync job, obviously
1369 #$cf::WAIT_FOR_TICK->wait; 1407 #$cf::WAIT_FOR_TICK->wait;
1370 $map->reset; 1408 $map->reset;
1371 undef $guard; 1409 undef $guard;
1372 return find $path; 1410 return find $path;
… …
1379sub pre_load { } 1417sub pre_load { }
1380sub post_load { } 1418sub post_load { }
1381 1419
1382sub load { 1420sub load {
1383 my ($self) = @_; 1421 my ($self) = @_;
1422
1423 local $self->{deny_reset} = 1; # loading can take a long time
1384 1424
1385 my $path = $self->{path}; 1425 my $path = $self->{path};
1386 my $guard = cf::lock_acquire "map_load:$path"; 1426 my $guard = cf::lock_acquire "map_load:$path";
1387 1427
1388 return if $self->in_memory != cf::MAP_SWAPPED; 1428 return if $self->in_memory != cf::MAP_SWAPPED;
… …
1577 return if $self->players; 1617 return if $self->players;
1578 return if $self->isa ("ext::map_per_player");#d# 1618 return if $self->isa ("ext::map_per_player");#d#
1579 1619
1580 warn "resetting map ", $self->path;#d# 1620 warn "resetting map ", $self->path;#d#
1581 1621
1622 $self->in_memory (cf::MAP_SWAPPED);
1623
1624 # need to save uniques path
1625 unless ($self->{deny_save}) {
1626 my $uniq = $self->uniq_path; utf8::encode $uniq;
1627
1628 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1629 if $uniq;
1630 }
1631
1582 delete $cf::MAP{$self->path}; 1632 delete $cf::MAP{$self->path};
1583 1633
1584 $self->in_memory (cf::MAP_SWAPPED);
1585 $self->clear; 1634 $self->clear;
1586 1635
1587 $_->clear_links_to ($self) for values %cf::MAP; 1636 $_->clear_links_to ($self) for values %cf::MAP;
1588 1637
1589 $self->unlink_save; 1638 $self->unlink_save;
… …
1626 for (@$files) { 1675 for (@$files) {
1627 utf8::decode $_; 1676 utf8::decode $_;
1628 next if /\.pst$/; 1677 next if /\.pst$/;
1629 next unless /^$PATH_SEP/o; 1678 next unless /^$PATH_SEP/o;
1630 1679
1631 s/\.map$//; 1680 push @paths, cf::map::normalise $_;
1632 push @paths, $_;
1633 } 1681 }
1634 1682
1635 \@paths 1683 \@paths
1636} 1684}
1637 1685
… …
1731=cut 1779=cut
1732 1780
1733sub link_map { 1781sub link_map {
1734 unless ($LINK_MAP) { 1782 unless ($LINK_MAP) {
1735 $LINK_MAP = cf::map::find "{link}" 1783 $LINK_MAP = cf::map::find "{link}"
1736 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1784 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737 $LINK_MAP->load; 1785 $LINK_MAP->load;
1738 } 1786 }
1739 1787
1740 $LINK_MAP 1788 $LINK_MAP
1741} 1789}
… …
1748 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1796 return if UNIVERSAL::isa $self->map, "ext::map_link";
1749 1797
1750 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1798 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751 if $self->map; 1799 if $self->map;
1752 1800
1753 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1801 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1754} 1802}
1755 1803
1756sub cf::object::player::leave_link { 1804sub cf::object::player::leave_link {
1757 my ($self, $map, $x, $y) = @_; 1805 my ($self, $map, $x, $y) = @_;
1758 1806
… …
1780 $map->load; 1828 $map->load;
1781 $map->load_diag; 1829 $map->load_diag;
1782 1830
1783 return unless $self->contr->active; 1831 return unless $self->contr->active;
1784 $self->activate_recursive; 1832 $self->activate_recursive;
1833
1834 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785 $self->enter_map ($map, $x, $y); 1835 $self->enter_map ($map, $x, $y);
1786} 1836}
1787 1837
1788cf::player->attach ( 1838cf::player->attach (
1789 on_logout => sub { 1839 on_logout => sub {
… …
1802 # try to abort aborted map switching on player login :) 1852 # try to abort aborted map switching on player login :)
1803 # should happen only on crashes 1853 # should happen only on crashes
1804 if ($pl->ob->{_link_pos}) { 1854 if ($pl->ob->{_link_pos}) {
1805 $pl->ob->enter_link; 1855 $pl->ob->enter_link;
1806 (async { 1856 (async {
1807 # we need this sleep as the login has a concurrent enter_exit running
1808 # and this sleep increases chances of the player not ending up in scorn
1809 $pl->ob->reply (undef, 1857 $pl->ob->reply (undef,
1810 "There was an internal problem at your last logout, " 1858 "There was an internal problem at your last logout, "
1811 . "the server will try to bring you to your intended destination in a second.", 1859 . "the server will try to bring you to your intended destination in a second.",
1812 cf::NDI_RED); 1860 cf::NDI_RED);
1861 # we need this sleep as the login has a concurrent enter_exit running
1862 # and this sleep increases chances of the player not ending up in scorn
1813 Coro::Timer::sleep 1; 1863 Coro::Timer::sleep 1;
1814 $pl->ob->leave_link; 1864 $pl->ob->leave_link;
1815 })->prio (2); 1865 })->prio (2);
1816 } 1866 }
1817 }, 1867 },
… …
1825 my ($self, $path, $x, $y) = @_; 1875 my ($self, $path, $x, $y) = @_;
1826 1876
1827 $self->enter_link; 1877 $self->enter_link;
1828 1878
1829 (async { 1879 (async {
1880 my $map = eval {
1830 my $map = cf::map::find $path; 1881 my $map = cf::map::find $path;
1831 $map = $map->customise_for ($self) if $map; 1882 $map = $map->customise_for ($self) if $map;
1832 1883 $map
1833# warn "entering ", $map->path, " at ($x, $y)\n" 1884 } or
1834# if $map;
1835
1836 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1885 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1837 1886
1838 $self->leave_link ($map, $x, $y); 1887 $self->leave_link ($map, $x, $y);
1839 })->prio (1); 1888 })->prio (1);
1840} 1889}
1841 1890
… …
1872 # that depends on the exit object 1921 # that depends on the exit object
1873 1922
1874 my $rmp = parse_random_map_params $exit->msg; 1923 my $rmp = parse_random_map_params $exit->msg;
1875 1924
1876 if ($exit->map) { 1925 if ($exit->map) {
1877 $rmp->{region} = $exit->map->region_name; 1926 $rmp->{region} = $exit->region->name;
1878 $rmp->{origin_map} = $exit->map->path; 1927 $rmp->{origin_map} = $exit->map->path;
1879 $rmp->{origin_x} = $exit->x; 1928 $rmp->{origin_x} = $exit->x;
1880 $rmp->{origin_y} = $exit->y; 1929 $rmp->{origin_y} = $exit->y;
1881 } 1930 }
1882 1931
… …
1899sub cf::object::player::enter_exit { 1948sub cf::object::player::enter_exit {
1900 my ($self, $exit) = @_; 1949 my ($self, $exit) = @_;
1901 1950
1902 return unless $self->type == cf::PLAYER; 1951 return unless $self->type == cf::PLAYER;
1903 1952
1953 if ($exit->slaying eq "/!") {
1954 #TODO: this should de-fi-ni-te-ly not be a sync-job
1955 cf::sync_job { prepare_random_map $exit };
1956 }
1957
1958 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959 my $hp = $exit->stats->hp;
1960 my $sp = $exit->stats->sp;
1961
1904 $self->enter_link; 1962 $self->enter_link;
1905 1963
1906 (async { 1964 (async {
1907 $self->deactivate_recursive; # just to be sure 1965 $self->deactivate_recursive; # just to be sure
1908 unless (eval { 1966 unless (eval {
1909 prepare_random_map $exit 1967 $self->goto ($slaying, $hp, $sp);
1910 if $exit->slaying eq "/!";
1911
1912 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1913 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1914 1968
1915 1; 1969 1;
1916 }) { 1970 }) {
1917 $self->message ("Something went wrong deep within the crossfire server. " 1971 $self->message ("Something went wrong deep within the crossfire server. "
1918 . "I'll try to bring you back to the map you were before. " 1972 . "I'll try to bring you back to the map you were before. "
… …
1979 # get handled first 2033 # get handled first
1980 my $queue = delete $ns->{query_queue} 2034 my $queue = delete $ns->{query_queue}
1981 or return; # be conservative, not sure how that can happen, but we saw a crash here 2035 or return; # be conservative, not sure how that can happen, but we saw a crash here
1982 2036
1983 (shift @$queue)->[1]->($msg); 2037 (shift @$queue)->[1]->($msg);
2038 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1984 2039
1985 push @{ $ns->{query_queue} }, @$queue; 2040 push @{ $ns->{query_queue} }, @$queue;
1986 2041
1987 if (@{ $ns->{query_queue} } == @$queue) { 2042 if (@{ $ns->{query_queue} } == @$queue) {
1988 if (@$queue) { 2043 if (@$queue) {
… …
2149The parameter C<$family> should best start with the name of the extension 2204The parameter C<$family> should best start with the name of the extension
2150using it, it should be unique. 2205using it, it should be unique.
2151 2206
2152=over 4 2207=over 4
2153 2208
2154=item $hashref = cf::db_get $family
2155
2156Return a hashref for use by the extension C<$family>, which can be
2157modified. After modifications, you have to call C<cf::db_dirty> or
2158C<cf::db_sync>.
2159
2160=item $value = cf::db_get $family => $key 2209=item $value = cf::db_get $family => $key
2161 2210
2162Returns a single value from the database 2211Returns a single value from the database.
2163
2164=item cf::db_put $family => $hashref
2165
2166Stores the given family hashref into the database. Updates are delayed, if
2167you want the data to be synced to disk immediately, use C<cf::db_sync>.
2168 2212
2169=item cf::db_put $family => $key => $value 2213=item cf::db_put $family => $key => $value
2170 2214
2171Stores the given C<$value> in the family hash. Updates are delayed, if you 2215Stores the given C<$value> in the family.
2172want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174=item cf::db_dirty
2175
2176Marks the database as dirty, to be updated at a later time.
2177
2178=item cf::db_sync
2179
2180Immediately write the database to disk I<if it is dirty>.
2181 2216
2182=cut 2217=cut
2183 2218
2184our $DB; 2219our $DB;
2185 2220
2186{ 2221sub db_init {
2222 unless ($DB) {
2223 $DB = BDB::db_create $DB_ENV;
2224
2225 cf::sync_job {
2226 eval {
2227 $DB->set_flags (BDB::CHKSUM);
2228
2229 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231 cf::cleanup "db_open(db): $!" if $!;
2232 };
2233 cf::cleanup "db_open(db): $@" if $@;
2234 };
2235
2187 my $path = cf::localdir . "/database.pst"; 2236 my $path = cf::localdir . "/database.pst";
2237 if (stat $path) {
2238 cf::sync_job {
2239 my $pst = Storable::retrieve $path;
2188 2240
2189 sub db_load() { 2241 cf::db_put (board => data => $pst->{board});
2190 $DB = stat $path ? Storable::retrieve $path : { }; 2242 cf::db_put (guildrules => data => $pst->{guildrules});
2191 } 2243 cf::db_put (rent => balance => $pst->{rent}{balance});
2244 BDB::db_env_txn_checkpoint $DB_ENV;
2192 2245
2193 my $pid; 2246 unlink $path;
2194
2195 sub db_save() {
2196 waitpid $pid, 0 if $pid;
2197 if (0 == ($pid = fork)) {
2198 $DB->{_meta}{version} = 1;
2199 Storable::nstore $DB, "$path~";
2200 rename "$path~", $path;
2201 cf::_exit 0 if defined $pid;
2202 } 2247 };
2203 }
2204
2205 my $dirty;
2206
2207 sub db_sync() {
2208 db_save if $dirty;
2209 undef $dirty;
2210 }
2211
2212 my $idle = Event->idle (
2213 reentrant => 0,
2214 min => 10,
2215 max => 20,
2216 repeat => 0,
2217 data => WF_AUTOCANCEL,
2218 cb => \&db_sync,
2219 );
2220
2221 sub db_dirty() {
2222 $dirty = 1;
2223 $idle->start;
2224 }
2225
2226 sub db_get($;$) {
2227 @_ >= 2
2228 ? $DB->{$_[0]}{$_[1]}
2229 : ($DB->{$_[0]} ||= { })
2230 }
2231
2232 sub db_put($$;$) {
2233 if (@_ >= 3) {
2234 $DB->{$_[0]}{$_[1]} = $_[2];
2235 } else {
2236 $DB->{$_[0]} = $_[1];
2237 }
2238 db_dirty;
2239 }
2240
2241 cf::global->attach (
2242 prio => 10000,
2243 on_cleanup => sub {
2244 db_sync;
2245 }, 2248 }
2246 ); 2249 }
2250}
2251
2252sub db_get($$) {
2253 my $key = "$_[0]/$_[1]";
2254
2255 cf::sync_job {
2256 BDB::db_get $DB, undef, $key, my $data;
2257
2258 $! ? ()
2259 : Compress::LZF::sthaw $data
2260 }
2261}
2262
2263sub db_put($$$) {
2264 BDB::dbreq_pri 4;
2265 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2247} 2266}
2248 2267
2249############################################################################# 2268#############################################################################
2250# the server's main() 2269# the server's init and main functions
2270
2271sub init_resources {
2272 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2273 or die "unable to load regions file\n";#d#
2274}
2251 2275
2252sub cfg_load { 2276sub cfg_load {
2253 open my $fh, "<:utf8", cf::confdir . "/config" 2277 open my $fh, "<:utf8", cf::confdir . "/config"
2254 or return; 2278 or return;
2255 2279
… …
2266 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2290 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2267 and die "WARNING: m(un)lockall failed: $!\n"; 2291 and die "WARNING: m(un)lockall failed: $!\n";
2268 }; 2292 };
2269 warn $@ if $@; 2293 warn $@ if $@;
2270 } 2294 }
2295}
2296
2297sub init {
2298 init_resources;
2271} 2299}
2272 2300
2273sub main { 2301sub main {
2274 # we must not ever block the main coroutine 2302 # we must not ever block the main coroutine
2275 local $Coro::idle = sub { 2303 local $Coro::idle = sub {
… …
2278 Event::one_event; 2306 Event::one_event;
2279 })->prio (Coro::PRIO_MAX); 2307 })->prio (Coro::PRIO_MAX);
2280 }; 2308 };
2281 2309
2282 cfg_load; 2310 cfg_load;
2283 db_load; 2311 db_init;
2284 load_extensions; 2312 load_extensions;
2285 2313
2286 $TICK_WATCHER->start; 2314 $TICK_WATCHER->start;
2287 Event::loop; 2315 Event::loop;
2288} 2316}
… …
2327 my $map = $cf::MAP{$path} or next; 2355 my $map = $cf::MAP{$path} or next;
2328 $map->valid or next; 2356 $map->valid or next;
2329 $map->save; 2357 $map->save;
2330 } 2358 }
2331 warn "end emergency map save\n"; 2359 warn "end emergency map save\n";
2360
2361 warn "begin emergency database checkpoint\n";
2362 BDB::db_env_txn_checkpoint $DB_ENV;
2363 warn "end emergency database checkpoint\n";
2332 }; 2364 };
2333 2365
2334 warn "leave emergency perl save\n"; 2366 warn "leave emergency perl save\n";
2367}
2368
2369sub post_cleanup {
2370 my ($make_core) = @_;
2371
2372 warn Carp::longmess "post_cleanup backtrace"
2373 if $make_core;
2335} 2374}
2336 2375
2337sub reload() { 2376sub reload() {
2338 # can/must only be called in main 2377 # can/must only be called in main
2339 if ($Coro::current != $Coro::main) { 2378 if ($Coro::current != $Coro::main) {
… …
2341 return; 2380 return;
2342 } 2381 }
2343 2382
2344 warn "reloading..."; 2383 warn "reloading...";
2345 2384
2346 warn "cancelling server ticker"; 2385 warn "entering sync_job";
2347 $TICK_WATCHER->cancel;
2348 2386
2387 cf::sync_job {
2388 cf::write_runtime; # external watchdog should not bark
2349 cf::emergency_save; 2389 cf::emergency_save;
2390 cf::write_runtime; # external watchdog should not bark
2350 2391
2351 eval { 2392 warn "syncing database to disk";
2393 BDB::db_env_txn_checkpoint $DB_ENV;
2394
2352 # if anything goes wrong in here, we should simply crash as we already saved 2395 # if anything goes wrong in here, we should simply crash as we already saved
2353
2354 warn "syncing database to disk";
2355 cf::db_sync;
2356 2396
2357 warn "cancelling all WF_AUTOCANCEL watchers"; 2397 warn "cancelling all WF_AUTOCANCEL watchers";
2358 for (Event::all_watchers) { 2398 for (Event::all_watchers) {
2359 $_->cancel if $_->data & WF_AUTOCANCEL; 2399 $_->cancel if $_->data & WF_AUTOCANCEL;
2360 } 2400 }
2361 2401
2362 warn "flushing outstanding aio requests"; 2402 warn "flushing outstanding aio requests";
2363 for (;;) { 2403 for (;;) {
2404 BDB::flush;
2364 IO::AIO::flush; 2405 IO::AIO::flush;
2365 Coro::cede; 2406 Coro::cede;
2366 last unless IO::AIO::nreqs; 2407 last unless IO::AIO::nreqs || BDB::nreqs;
2367 warn "iterate..."; 2408 warn "iterate...";
2368 } 2409 }
2369 2410
2370 warn "cancelling all extension coros"; 2411 warn "cancelling all extension coros";
2371 $_->cancel for values %EXT_CORO; 2412 $_->cancel for values %EXT_CORO;
… …
2426 require cf; 2467 require cf;
2427 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2468 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2428 2469
2429 warn "loading config and database again"; 2470 warn "loading config and database again";
2430 cf::cfg_load; 2471 cf::cfg_load;
2431 cf::db_load;
2432 2472
2433 warn "loading extensions"; 2473 warn "loading extensions";
2434 cf::load_extensions; 2474 cf::load_extensions;
2435 2475
2436 warn "reattaching attachments to objects/players"; 2476 warn "reattaching attachments to objects/players";
2437 _global_reattach; 2477 _global_reattach; # objects, sockets
2438 warn "reattaching attachments to maps"; 2478 warn "reattaching attachments to maps";
2439 reattach $_ for values %MAP; 2479 reattach $_ for values %MAP;
2480 warn "reattaching attachments to players";
2481 reattach $_ for values %PLAYER;
2440 2482
2441 warn "restarting server ticker"; 2483 warn "loading reloadable resources";
2484 init_resources;
2442 2485
2443 $TICK_WATCHER->start; 2486 warn "leaving sync_job";
2444 };
2445 2487
2446 if ($@) { 2488 1
2489 } or do {
2447 warn $@; 2490 warn $@;
2448 warn "error while reloading, exiting."; 2491 warn "error while reloading, exiting.";
2449 exit 1; 2492 exit 1;
2450 } 2493 };
2451 2494
2452 warn "reloaded"; 2495 warn "reloaded";
2453}; 2496};
2454 2497
2455our $RELOAD_WATCHER; # used only during reload 2498our $RELOAD_WATCHER; # used only during reload
… …
2496 2539
2497 cf::server_tick; # one server iteration 2540 cf::server_tick; # one server iteration
2498 $RUNTIME += $TICK; 2541 $RUNTIME += $TICK;
2499 $NEXT_TICK += $TICK; 2542 $NEXT_TICK += $TICK;
2500 2543
2544 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2545 $NEXT_RUNTIME_WRITE = $NOW + 10;
2546 Coro::async_pool {
2547 write_runtime
2548 or warn "ERROR: unable to write runtime file: $!";
2549 };
2550 }
2551
2501 $WAIT_FOR_TICK->broadcast; 2552 $WAIT_FOR_TICK->broadcast;
2502 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2553 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2503 2554
2504 Event::sweep;
2505 Coro::cede_notself;
2506
2507# my $AFTER = Event::time; 2555# my $AFTER = Event::time;
2508# warn $AFTER - $NOW;#d# 2556# warn $AFTER - $NOW;#d#
2509 2557
2510 # if we are delayed by four ticks or more, skip them all 2558 # if we are delayed by four ticks or more, skip them all
2511 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2559 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2513 $TICK_WATCHER->at ($NEXT_TICK); 2561 $TICK_WATCHER->at ($NEXT_TICK);
2514 $TICK_WATCHER->start; 2562 $TICK_WATCHER->start;
2515 }, 2563 },
2516); 2564);
2517 2565
2566{
2567 BDB::max_poll_time $TICK * 0.1;
2568 $BDB_POLL_WATCHER = Event->io (
2569 reentrant => 0,
2570 fd => BDB::poll_fileno,
2571 poll => 'r',
2572 prio => 0,
2573 data => WF_AUTOCANCEL,
2574 cb => \&BDB::poll_cb,
2575 );
2576 BDB::min_parallel 8;
2577
2578 BDB::set_sync_prepare {
2579 my $status;
2580 my $current = $Coro::current;
2581 (
2582 sub {
2583 $status = $!;
2584 $current->ready; undef $current;
2585 },
2586 sub {
2587 Coro::schedule while defined $current;
2588 $! = $status;
2589 },
2590 )
2591 };
2592
2593 unless ($DB_ENV) {
2594 $DB_ENV = BDB::db_env_create;
2595
2596 cf::sync_job {
2597 eval {
2598 BDB::db_env_open
2599 $DB_ENV,
2600 $BDB_ENV_DIR,
2601 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2602 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2603 0666;
2604
2605 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2606
2607 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2608 $DB_ENV->set_lk_detect;
2609 };
2610
2611 cf::cleanup "db_env_open(db): $@" if $@;
2612 };
2613 }
2614}
2615
2616{
2617 IO::AIO::min_parallel 8;
2618
2619 undef $Coro::AIO::WATCHER;
2518IO::AIO::max_poll_time $TICK * 0.1; 2620 IO::AIO::max_poll_time $TICK * 0.1;
2519
2520undef $Coro::AIO::WATCHER;
2521$AIO_POLL_WATCHER = Event->io ( 2621 $AIO_POLL_WATCHER = Event->io (
2522 reentrant => 0, 2622 reentrant => 0,
2623 data => WF_AUTOCANCEL,
2523 fd => IO::AIO::poll_fileno, 2624 fd => IO::AIO::poll_fileno,
2524 poll => 'r', 2625 poll => 'r',
2525 prio => 6, 2626 prio => 6,
2526 data => WF_AUTOCANCEL,
2527 cb => \&IO::AIO::poll_cb, 2627 cb => \&IO::AIO::poll_cb,
2528); 2628 );
2529 2629}
2530$WRITE_RUNTIME_WATCHER = Event->timer (
2531 reentrant => 0,
2532 data => WF_AUTOCANCEL,
2533 after => 1,
2534 interval => 10,
2535 prio => 6, # keep it lowest so it acts like a watchdog
2536 cb => Coro::unblock_sub {
2537 write_runtime
2538 or warn "ERROR: unable to write runtime file: $!";
2539 },
2540);
2541 2630
2542END { cf::emergency_save } 2631END { cf::emergency_save }
2543 2632
25441 26331
2545 2634

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