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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 1.223 by root, Sun Mar 11 02:12:44 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
… …
39our @EXTS = (); # list of extension package names 43our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 44our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 45our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 46our %EXT_MAP = (); # pluggable maps
43 47
48our $RELOAD; # number of reloads so far
44our @EVENT; 49our @EVENT;
45our $LIBDIR = datadir . "/ext"; 50our $LIBDIR = datadir . "/ext";
46 51
47our $TICK = MAX_TIME * 1e-6; 52our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 53our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 54our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 55our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 56our $NEXT_TICK;
52our $NOW; 57our $NOW;
58our $USE_FSYNC = 1; # use fsync to write maps - default off
59
60our $BDB_POLL_WATCHER;
61our $DB_ENV;
53 62
54our %CFG; 63our %CFG;
55 64
56our $UPTIME; $UPTIME ||= time; 65our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 66our $RUNTIME;
58 67
59our %PLAYER; # all users 68our %PLAYER; # all users
60our %MAP; # all maps 69our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 70our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 71our $RANDOM_MAPS = cf::localdir . "/random";
72our $BDB_ENV_DIR = cf::localdir . "/db";
63 73
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 74our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 75our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 76
67# used to convert map paths into valid unix filenames by replacing / by ∕ 77# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 90mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 91mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 92mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 93mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 94mkdir $RANDOM_MAPS;
95mkdir $BDB_ENV_DIR;
85 96
86our $EMERGENCY_POSITION; 97our $EMERGENCY_POSITION;
98
99sub cf::map::normalise;
87 100
88############################################################################# 101#############################################################################
89 102
90=head2 GLOBAL VARIABLES 103=head2 GLOBAL VARIABLES
91 104
… …
261sub freeze_mainloop { 274sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 275 return unless $TICK_WATCHER->is_active;
263 276
264 my $guard = Coro::guard { 277 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 278 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 279 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 280 $TICK_WATCHER->stop;
270 $guard 281 $guard
271} 282}
272 283
273=item cf::async { BLOCK } 284=item cf::async { BLOCK }
… …
344 355
345 $coro 356 $coro
346} 357}
347 358
348sub write_runtime { 359sub write_runtime {
360 my $guard = cf::lock_acquire "write_runtime";
361
349 my $runtime = cf::localdir . "/runtime"; 362 my $runtime = cf::localdir . "/runtime";
350 363
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 364 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 365 or return;
353 366
… …
356 # 60 allows for the watchdog to kill the server. 369 # 60 allows for the watchdog to kill the server.
357 370
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 371 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 372 and return;
360 373
374 # always fsync - this file is important
361 aio_fsync $fh 375 aio_fsync $fh
362 and return; 376 and return;
363 377
364 close $fh 378 close $fh
365 or return; 379 or return;
… …
750 $filename, length $$rdata, scalar @$objs; 764 $filename, length $$rdata, scalar @$objs;
751 765
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 766 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 767 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 768 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 769 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 770 close $fh;
757 771
758 if (@$objs) { 772 if (@$objs) {
759 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 773 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760 chmod SAVE_MODE, $fh; 774 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 775 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 776 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 777 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 778 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 779 aio_rename "$filename.pst~", "$filename.pst";
766 } 780 }
767 } else { 781 } else {
768 aio_unlink "$filename.pst"; 782 aio_unlink "$filename.pst";
… …
1017=cut 1031=cut
1018 1032
1019sub quit_character { 1033sub quit_character {
1020 my ($pl) = @_; 1034 my ($pl) = @_;
1021 1035
1036 my $name = $pl->ob->name;
1037
1022 $pl->{deny_save} = 1; 1038 $pl->{deny_save} = 1;
1023 $pl->password ("*"); # this should lock out the player until we nuked the dir 1039 $pl->password ("*"); # this should lock out the player until we nuked the dir
1024 1040
1025 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1041 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026 $pl->deactivate; 1042 $pl->deactivate;
… …
1030 my $path = playerdir $pl; 1046 my $path = playerdir $pl;
1031 my $temp = "$path~$cf::RUNTIME~deleting~"; 1047 my $temp = "$path~$cf::RUNTIME~deleting~";
1032 aio_rename $path, $temp; 1048 aio_rename $path, $temp;
1033 delete $cf::PLAYER{$pl->ob->name}; 1049 delete $cf::PLAYER{$pl->ob->name};
1034 $pl->destroy; 1050 $pl->destroy;
1051
1052 my $prefix = qr<^~\Q$name\E/>;
1053
1054 # nuke player maps
1055 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1056
1035 IO::AIO::aio_rmtree $temp; 1057 IO::AIO::aio_rmtree $temp;
1058}
1059
1060=item $pl->kick
1061
1062Kicks a player out of the game. This destroys the connection.
1063
1064=cut
1065
1066sub kick {
1067 my ($pl, $kicker) = @_;
1068
1069 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1070 $pl->killer ("kicked");
1071 $pl->ns->destroy;
1036} 1072}
1037 1073
1038=item cf::player::list_logins 1074=item cf::player::list_logins
1039 1075
1040Returns am arrayref of all valid playernames in the system, can take a 1076Returns am arrayref of all valid playernames in the system, can take a
… …
1068=cut 1104=cut
1069 1105
1070sub maps($) { 1106sub maps($) {
1071 my ($pl) = @_; 1107 my ($pl) = @_;
1072 1108
1109 $pl = ref $pl ? $pl->ob->name : $pl;
1110
1073 my $files = aio_readdir playerdir $pl 1111 my $files = aio_readdir playerdir $pl
1074 or return; 1112 or return;
1075 1113
1076 my @paths; 1114 my @paths;
1077 1115
1078 for (@$files) { 1116 for (@$files) {
1079 utf8::decode $_; 1117 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1118 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1119 next unless /^$PATH_SEP/o;
1082 1120
1083 s/\.map$//; 1121 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1122 }
1086 1123
1087 \@paths 1124 \@paths
1088} 1125}
1089 1126
… …
1178sub normalise { 1215sub normalise {
1179 my ($path, $base) = @_; 1216 my ($path, $base) = @_;
1180 1217
1181 $path = "$path"; # make sure its a string 1218 $path = "$path"; # make sure its a string
1182 1219
1220 $path =~ s/\.map$//;
1221
1183 # map plan: 1222 # map plan:
1184 # 1223 #
1185 # /! non-realised random map exit (special hack!) 1224 # /! non-realised random map exit (special hack!)
1186 # {... are special paths that are not being touched 1225 # {... are special paths that are not being touched
1187 # ?xxx/... are special absolute paths 1226 # ?xxx/... are special absolute paths
… …
1248 1287
1249# the original (read-only) location 1288# the original (read-only) location
1250sub load_path { 1289sub load_path {
1251 my ($self) = @_; 1290 my ($self) = @_;
1252 1291
1253 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1292 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1254} 1293}
1255 1294
1256# the temporary/swap location 1295# the temporary/swap location
1257sub save_path { 1296sub save_path {
1258 my ($self) = @_; 1297 my ($self) = @_;
1259 1298
1260 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1299 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1300 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1262} 1301}
1263 1302
1264# the unique path, undef == no special unique path 1303# the unique path, undef == no special unique path
1265sub uniq_path { 1304sub uniq_path {
1266 my ($self) = @_; 1305 my ($self) = @_;
… …
1288 1327
1289sub load_header_from($) { 1328sub load_header_from($) {
1290 my ($self, $path) = @_; 1329 my ($self, $path) = @_;
1291 1330
1292 utf8::encode $path; 1331 utf8::encode $path;
1293 aio_open $path, O_RDONLY, 0 1332 #aio_open $path, O_RDONLY, 0
1294 or return; 1333 # or return;
1295 1334
1296 $self->_load_header ($path) 1335 $self->_load_header ($path)
1297 or return; 1336 or return;
1298 1337
1299 $self->{load_path} = $path; 1338 $self->{load_path} = $path;
… …
1362 $map->{last_save} = $cf::RUNTIME; 1401 $map->{last_save} = $cf::RUNTIME;
1363 1402
1364 $map->load_header 1403 $map->load_header
1365 or return; 1404 or return;
1366 1405
1367 if ($map->should_reset) { 1406 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1368 # doing this can freeze the server in a sync job, obviously 1407 # doing this can freeze the server in a sync job, obviously
1369 #$cf::WAIT_FOR_TICK->wait; 1408 #$cf::WAIT_FOR_TICK->wait;
1370 $map->reset; 1409 $map->reset;
1371 undef $guard; 1410 undef $guard;
1372 return find $path; 1411 return find $path;
… …
1379sub pre_load { } 1418sub pre_load { }
1380sub post_load { } 1419sub post_load { }
1381 1420
1382sub load { 1421sub load {
1383 my ($self) = @_; 1422 my ($self) = @_;
1423
1424 local $self->{deny_reset} = 1; # loading can take a long time
1384 1425
1385 my $path = $self->{path}; 1426 my $path = $self->{path};
1386 my $guard = cf::lock_acquire "map_load:$path"; 1427 my $guard = cf::lock_acquire "map_load:$path";
1387 1428
1388 return if $self->in_memory != cf::MAP_SWAPPED; 1429 return if $self->in_memory != cf::MAP_SWAPPED;
… …
1577 return if $self->players; 1618 return if $self->players;
1578 return if $self->isa ("ext::map_per_player");#d# 1619 return if $self->isa ("ext::map_per_player");#d#
1579 1620
1580 warn "resetting map ", $self->path;#d# 1621 warn "resetting map ", $self->path;#d#
1581 1622
1623 $self->in_memory (cf::MAP_SWAPPED);
1624
1625 # need to save uniques path
1626 unless ($self->{deny_save}) {
1627 my $uniq = $self->uniq_path; utf8::encode $uniq;
1628
1629 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1630 if $uniq;
1631 }
1632
1582 delete $cf::MAP{$self->path}; 1633 delete $cf::MAP{$self->path};
1583 1634
1584 $self->in_memory (cf::MAP_SWAPPED);
1585 $self->clear; 1635 $self->clear;
1586 1636
1587 $_->clear_links_to ($self) for values %cf::MAP; 1637 $_->clear_links_to ($self) for values %cf::MAP;
1588 1638
1589 $self->unlink_save; 1639 $self->unlink_save;
… …
1626 for (@$files) { 1676 for (@$files) {
1627 utf8::decode $_; 1677 utf8::decode $_;
1628 next if /\.pst$/; 1678 next if /\.pst$/;
1629 next unless /^$PATH_SEP/o; 1679 next unless /^$PATH_SEP/o;
1630 1680
1631 s/\.map$//; 1681 push @paths, cf::map::normalise $_;
1632 push @paths, $_;
1633 } 1682 }
1634 1683
1635 \@paths 1684 \@paths
1636} 1685}
1637 1686
… …
1731=cut 1780=cut
1732 1781
1733sub link_map { 1782sub link_map {
1734 unless ($LINK_MAP) { 1783 unless ($LINK_MAP) {
1735 $LINK_MAP = cf::map::find "{link}" 1784 $LINK_MAP = cf::map::find "{link}"
1736 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1785 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737 $LINK_MAP->load; 1786 $LINK_MAP->load;
1738 } 1787 }
1739 1788
1740 $LINK_MAP 1789 $LINK_MAP
1741} 1790}
… …
1748 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1797 return if UNIVERSAL::isa $self->map, "ext::map_link";
1749 1798
1750 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1799 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751 if $self->map; 1800 if $self->map;
1752 1801
1753 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1802 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1754} 1803}
1755 1804
1756sub cf::object::player::leave_link { 1805sub cf::object::player::leave_link {
1757 my ($self, $map, $x, $y) = @_; 1806 my ($self, $map, $x, $y) = @_;
1758 1807
… …
1780 $map->load; 1829 $map->load;
1781 $map->load_diag; 1830 $map->load_diag;
1782 1831
1783 return unless $self->contr->active; 1832 return unless $self->contr->active;
1784 $self->activate_recursive; 1833 $self->activate_recursive;
1834
1835 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785 $self->enter_map ($map, $x, $y); 1836 $self->enter_map ($map, $x, $y);
1786} 1837}
1787 1838
1788cf::player->attach ( 1839cf::player->attach (
1789 on_logout => sub { 1840 on_logout => sub {
… …
1802 # try to abort aborted map switching on player login :) 1853 # try to abort aborted map switching on player login :)
1803 # should happen only on crashes 1854 # should happen only on crashes
1804 if ($pl->ob->{_link_pos}) { 1855 if ($pl->ob->{_link_pos}) {
1805 $pl->ob->enter_link; 1856 $pl->ob->enter_link;
1806 (async { 1857 (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, 1858 $pl->ob->reply (undef,
1810 "There was an internal problem at your last logout, " 1859 "There was an internal problem at your last logout, "
1811 . "the server will try to bring you to your intended destination in a second.", 1860 . "the server will try to bring you to your intended destination in a second.",
1812 cf::NDI_RED); 1861 cf::NDI_RED);
1862 # we need this sleep as the login has a concurrent enter_exit running
1863 # and this sleep increases chances of the player not ending up in scorn
1813 Coro::Timer::sleep 1; 1864 Coro::Timer::sleep 1;
1814 $pl->ob->leave_link; 1865 $pl->ob->leave_link;
1815 })->prio (2); 1866 })->prio (2);
1816 } 1867 }
1817 }, 1868 },
… …
1825 my ($self, $path, $x, $y) = @_; 1876 my ($self, $path, $x, $y) = @_;
1826 1877
1827 $self->enter_link; 1878 $self->enter_link;
1828 1879
1829 (async { 1880 (async {
1881 my $map = eval {
1830 my $map = cf::map::find $path; 1882 my $map = cf::map::find $path;
1831 $map = $map->customise_for ($self) if $map; 1883 $map = $map->customise_for ($self) if $map;
1832 1884 $map
1833# warn "entering ", $map->path, " at ($x, $y)\n" 1885 } or
1834# if $map;
1835
1836 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1886 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1837 1887
1838 $self->leave_link ($map, $x, $y); 1888 $self->leave_link ($map, $x, $y);
1839 })->prio (1); 1889 })->prio (1);
1840} 1890}
1841 1891
… …
1872 # that depends on the exit object 1922 # that depends on the exit object
1873 1923
1874 my $rmp = parse_random_map_params $exit->msg; 1924 my $rmp = parse_random_map_params $exit->msg;
1875 1925
1876 if ($exit->map) { 1926 if ($exit->map) {
1877 $rmp->{region} = $exit->map->region_name; 1927 $rmp->{region} = $exit->region->name;
1878 $rmp->{origin_map} = $exit->map->path; 1928 $rmp->{origin_map} = $exit->map->path;
1879 $rmp->{origin_x} = $exit->x; 1929 $rmp->{origin_x} = $exit->x;
1880 $rmp->{origin_y} = $exit->y; 1930 $rmp->{origin_y} = $exit->y;
1881 } 1931 }
1882 1932
… …
1899sub cf::object::player::enter_exit { 1949sub cf::object::player::enter_exit {
1900 my ($self, $exit) = @_; 1950 my ($self, $exit) = @_;
1901 1951
1902 return unless $self->type == cf::PLAYER; 1952 return unless $self->type == cf::PLAYER;
1903 1953
1954 if ($exit->slaying eq "/!") {
1955 #TODO: this should de-fi-ni-te-ly not be a sync-job
1956 cf::sync_job { prepare_random_map $exit };
1957 }
1958
1959 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960 my $hp = $exit->stats->hp;
1961 my $sp = $exit->stats->sp;
1962
1904 $self->enter_link; 1963 $self->enter_link;
1905 1964
1906 (async { 1965 (async {
1907 $self->deactivate_recursive; # just to be sure 1966 $self->deactivate_recursive; # just to be sure
1908 unless (eval { 1967 unless (eval {
1909 prepare_random_map $exit 1968 $self->goto ($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 1969
1915 1; 1970 1;
1916 }) { 1971 }) {
1917 $self->message ("Something went wrong deep within the crossfire server. " 1972 $self->message ("Something went wrong deep within the crossfire server. "
1918 . "I'll try to bring you back to the map you were before. " 1973 . "I'll try to bring you back to the map you were before. "
… …
1979 # get handled first 2034 # get handled first
1980 my $queue = delete $ns->{query_queue} 2035 my $queue = delete $ns->{query_queue}
1981 or return; # be conservative, not sure how that can happen, but we saw a crash here 2036 or return; # be conservative, not sure how that can happen, but we saw a crash here
1982 2037
1983 (shift @$queue)->[1]->($msg); 2038 (shift @$queue)->[1]->($msg);
2039 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1984 2040
1985 push @{ $ns->{query_queue} }, @$queue; 2041 push @{ $ns->{query_queue} }, @$queue;
1986 2042
1987 if (@{ $ns->{query_queue} } == @$queue) { 2043 if (@{ $ns->{query_queue} } == @$queue) {
1988 if (@$queue) { 2044 if (@$queue) {
… …
2149The parameter C<$family> should best start with the name of the extension 2205The parameter C<$family> should best start with the name of the extension
2150using it, it should be unique. 2206using it, it should be unique.
2151 2207
2152=over 4 2208=over 4
2153 2209
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 2210=item $value = cf::db_get $family => $key
2161 2211
2162Returns a single value from the database 2212Returns 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 2213
2169=item cf::db_put $family => $key => $value 2214=item cf::db_put $family => $key => $value
2170 2215
2171Stores the given C<$value> in the family hash. Updates are delayed, if you 2216Stores 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 2217
2182=cut 2218=cut
2183 2219
2184our $DB; 2220our $DB;
2185 2221
2186{ 2222sub db_init {
2223 unless ($DB) {
2224 $DB = BDB::db_create $DB_ENV;
2225
2226 cf::sync_job {
2227 eval {
2228 $DB->set_flags (BDB::CHKSUM);
2229
2230 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232 cf::cleanup "db_open(db): $!" if $!;
2233 };
2234 cf::cleanup "db_open(db): $@" if $@;
2235 };
2236
2187 my $path = cf::localdir . "/database.pst"; 2237 my $path = cf::localdir . "/database.pst";
2238 if (stat $path) {
2239 cf::sync_job {
2240 my $pst = Storable::retrieve $path;
2188 2241
2189 sub db_load() { 2242 cf::db_put (board => data => $pst->{board});
2190 $DB = stat $path ? Storable::retrieve $path : { }; 2243 cf::db_put (guildrules => data => $pst->{guildrules});
2191 } 2244 cf::db_put (rent => balance => $pst->{rent}{balance});
2245 BDB::db_env_txn_checkpoint $DB_ENV;
2192 2246
2193 my $pid; 2247 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 } 2248 };
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($$;$) {
2233 if (@_ >= 3) {
2234 $DB->{$_[0]}{$_[1]} = $_[2];
2235 } else {
2236 $DB->{$_[0]} = $_[1];
2237 }
2238 db_dirty;
2239 }
2240
2241 cf::global->attach (
2242 prio => 10000,
2243 on_cleanup => sub {
2244 db_sync;
2245 }, 2249 }
2246 ); 2250 }
2251}
2252
2253sub db_get($$) {
2254 my $key = "$_[0]/$_[1]";
2255
2256 cf::sync_job {
2257 BDB::db_get $DB, undef, $key, my $data;
2258
2259 $! ? ()
2260 : Compress::LZF::sthaw $data
2261 }
2262}
2263
2264sub db_put($$$) {
2265 BDB::dbreq_pri 4;
2266 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2247} 2267}
2248 2268
2249############################################################################# 2269#############################################################################
2250# the server's main() 2270# the server's init and main functions
2271
2272sub load_faces {
2273 my $path = sprintf "%s/faces", cf::datadir;
2274
2275 warn "loading faces from $path\n";
2276
2277 my $faces;
2278 0 < aio_load $path, $faces
2279 or die "$path: $!";
2280
2281 Coro::cede;
2282 $faces = Storable::thaw $faces;
2283 Coro::cede;
2284
2285 while (my ($face, $info) = each %$faces) {
2286 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2289 Coro::cede;
2290 }
2291
2292 1
2293}
2294
2295sub reload_resources {
2296 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2297 or die "unable to load regions file\n";#d#
2298 load_faces
2299 or die "unable to load faces\n";#d#
2300}
2301
2302sub init {
2303 reload_resources;
2304}
2251 2305
2252sub cfg_load { 2306sub cfg_load {
2253 open my $fh, "<:utf8", cf::confdir . "/config" 2307 open my $fh, "<:utf8", cf::confdir . "/config"
2254 or return; 2308 or return;
2255 2309
… …
2278 Event::one_event; 2332 Event::one_event;
2279 })->prio (Coro::PRIO_MAX); 2333 })->prio (Coro::PRIO_MAX);
2280 }; 2334 };
2281 2335
2282 cfg_load; 2336 cfg_load;
2283 db_load; 2337 db_init;
2284 load_extensions; 2338 load_extensions;
2285 2339
2286 $TICK_WATCHER->start; 2340 $TICK_WATCHER->start;
2287 Event::loop; 2341 Event::loop;
2288} 2342}
… …
2327 my $map = $cf::MAP{$path} or next; 2381 my $map = $cf::MAP{$path} or next;
2328 $map->valid or next; 2382 $map->valid or next;
2329 $map->save; 2383 $map->save;
2330 } 2384 }
2331 warn "end emergency map save\n"; 2385 warn "end emergency map save\n";
2386
2387 warn "begin emergency database checkpoint\n";
2388 BDB::db_env_txn_checkpoint $DB_ENV;
2389 warn "end emergency database checkpoint\n";
2332 }; 2390 };
2333 2391
2334 warn "leave emergency perl save\n"; 2392 warn "leave emergency perl save\n";
2393}
2394
2395sub post_cleanup {
2396 my ($make_core) = @_;
2397
2398 warn Carp::longmess "post_cleanup backtrace"
2399 if $make_core;
2335} 2400}
2336 2401
2337sub reload() { 2402sub reload() {
2338 # can/must only be called in main 2403 # can/must only be called in main
2339 if ($Coro::current != $Coro::main) { 2404 if ($Coro::current != $Coro::main) {
… …
2341 return; 2406 return;
2342 } 2407 }
2343 2408
2344 warn "reloading..."; 2409 warn "reloading...";
2345 2410
2346 warn "cancelling server ticker"; 2411 warn "entering sync_job";
2347 $TICK_WATCHER->cancel;
2348 2412
2413 cf::sync_job {
2414 cf::write_runtime; # external watchdog should not bark
2349 cf::emergency_save; 2415 cf::emergency_save;
2416 cf::write_runtime; # external watchdog should not bark
2350 2417
2351 eval { 2418 warn "syncing database to disk";
2419 BDB::db_env_txn_checkpoint $DB_ENV;
2420
2352 # if anything goes wrong in here, we should simply crash as we already saved 2421 # 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 2422
2357 warn "cancelling all WF_AUTOCANCEL watchers"; 2423 warn "cancelling all WF_AUTOCANCEL watchers";
2358 for (Event::all_watchers) { 2424 for (Event::all_watchers) {
2359 $_->cancel if $_->data & WF_AUTOCANCEL; 2425 $_->cancel if $_->data & WF_AUTOCANCEL;
2360 } 2426 }
2361 2427
2362 warn "flushing outstanding aio requests"; 2428 warn "flushing outstanding aio requests";
2363 for (;;) { 2429 for (;;) {
2430 BDB::flush;
2364 IO::AIO::flush; 2431 IO::AIO::flush;
2365 Coro::cede; 2432 Coro::cede;
2366 last unless IO::AIO::nreqs; 2433 last unless IO::AIO::nreqs || BDB::nreqs;
2367 warn "iterate..."; 2434 warn "iterate...";
2368 } 2435 }
2436
2437 ++$RELOAD;
2369 2438
2370 warn "cancelling all extension coros"; 2439 warn "cancelling all extension coros";
2371 $_->cancel for values %EXT_CORO; 2440 $_->cancel for values %EXT_CORO;
2372 %EXT_CORO = (); 2441 %EXT_CORO = ();
2373 2442
… …
2426 require cf; 2495 require cf;
2427 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2496 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2428 2497
2429 warn "loading config and database again"; 2498 warn "loading config and database again";
2430 cf::cfg_load; 2499 cf::cfg_load;
2431 cf::db_load;
2432 2500
2433 warn "loading extensions"; 2501 warn "loading extensions";
2434 cf::load_extensions; 2502 cf::load_extensions;
2435 2503
2436 warn "reattaching attachments to objects/players"; 2504 warn "reattaching attachments to objects/players";
2437 _global_reattach; 2505 _global_reattach; # objects, sockets
2438 warn "reattaching attachments to maps"; 2506 warn "reattaching attachments to maps";
2439 reattach $_ for values %MAP; 2507 reattach $_ for values %MAP;
2508 warn "reattaching attachments to players";
2509 reattach $_ for values %PLAYER;
2440 2510
2441 warn "restarting server ticker"; 2511 warn "loading reloadable resources";
2512 reload_resources;
2442 2513
2443 $TICK_WATCHER->start; 2514 warn "leaving sync_job";
2444 };
2445 2515
2446 if ($@) { 2516 1
2517 } or do {
2447 warn $@; 2518 warn $@;
2448 warn "error while reloading, exiting."; 2519 warn "error while reloading, exiting.";
2449 exit 1; 2520 exit 1;
2450 } 2521 };
2451 2522
2452 warn "reloaded"; 2523 warn "reloaded";
2453}; 2524};
2454 2525
2455our $RELOAD_WATCHER; # used only during reload 2526our $RELOAD_WATCHER; # used only during reload
… …
2496 2567
2497 cf::server_tick; # one server iteration 2568 cf::server_tick; # one server iteration
2498 $RUNTIME += $TICK; 2569 $RUNTIME += $TICK;
2499 $NEXT_TICK += $TICK; 2570 $NEXT_TICK += $TICK;
2500 2571
2572 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573 $NEXT_RUNTIME_WRITE = $NOW + 10;
2574 Coro::async_pool {
2575 write_runtime
2576 or warn "ERROR: unable to write runtime file: $!";
2577 };
2578 }
2579
2501 $WAIT_FOR_TICK->broadcast; 2580 $WAIT_FOR_TICK->broadcast;
2502 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2581 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2503 2582
2504 Event::sweep;
2505 Coro::cede_notself;
2506
2507# my $AFTER = Event::time; 2583# my $AFTER = Event::time;
2508# warn $AFTER - $NOW;#d# 2584# warn $AFTER - $NOW;#d#
2509 2585
2510 # if we are delayed by four ticks or more, skip them all 2586 # if we are delayed by four ticks or more, skip them all
2511 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2587 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2513 $TICK_WATCHER->at ($NEXT_TICK); 2589 $TICK_WATCHER->at ($NEXT_TICK);
2514 $TICK_WATCHER->start; 2590 $TICK_WATCHER->start;
2515 }, 2591 },
2516); 2592);
2517 2593
2594{
2595 BDB::max_poll_time $TICK * 0.1;
2596 $BDB_POLL_WATCHER = Event->io (
2597 reentrant => 0,
2598 fd => BDB::poll_fileno,
2599 poll => 'r',
2600 prio => 0,
2601 data => WF_AUTOCANCEL,
2602 cb => \&BDB::poll_cb,
2603 );
2604 BDB::min_parallel 8;
2605
2606 BDB::set_sync_prepare {
2607 my $status;
2608 my $current = $Coro::current;
2609 (
2610 sub {
2611 $status = $!;
2612 $current->ready; undef $current;
2613 },
2614 sub {
2615 Coro::schedule while defined $current;
2616 $! = $status;
2617 },
2618 )
2619 };
2620
2621 unless ($DB_ENV) {
2622 $DB_ENV = BDB::db_env_create;
2623
2624 cf::sync_job {
2625 eval {
2626 BDB::db_env_open
2627 $DB_ENV,
2628 $BDB_ENV_DIR,
2629 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631 0666;
2632
2633 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2634
2635 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636 $DB_ENV->set_lk_detect;
2637 };
2638
2639 cf::cleanup "db_env_open(db): $@" if $@;
2640 };
2641 }
2642}
2643
2644{
2645 IO::AIO::min_parallel 8;
2646
2647 undef $Coro::AIO::WATCHER;
2518IO::AIO::max_poll_time $TICK * 0.1; 2648 IO::AIO::max_poll_time $TICK * 0.1;
2519
2520undef $Coro::AIO::WATCHER;
2521$AIO_POLL_WATCHER = Event->io ( 2649 $AIO_POLL_WATCHER = Event->io (
2522 reentrant => 0, 2650 reentrant => 0,
2651 data => WF_AUTOCANCEL,
2523 fd => IO::AIO::poll_fileno, 2652 fd => IO::AIO::poll_fileno,
2524 poll => 'r', 2653 poll => 'r',
2525 prio => 6, 2654 prio => 6,
2526 data => WF_AUTOCANCEL,
2527 cb => \&IO::AIO::poll_cb, 2655 cb => \&IO::AIO::poll_cb,
2528); 2656 );
2529 2657}
2530$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 2658
2542END { cf::emergency_save } 2659END { cf::emergency_save }
2543 2660
25441 26611
2545 2662

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