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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.192 by root, Wed Jan 24 01:43:01 2007 UTC vs.
Revision 1.225 by root, Wed Mar 14 00:04:58 2007 UTC

… …
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Storable;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
12 13
13use Coro 3.4 (); 14use Coro 3.52 ();
15use Coro::State;
14use Coro::Event; 16use Coro::Event;
15use Coro::Timer; 17use Coro::Timer;
16use Coro::Signal; 18use Coro::Signal;
17use Coro::Semaphore; 19use Coro::Semaphore;
18use Coro::AIO; 20use Coro::AIO;
19 21
22use BDB ();
20use Data::Dumper; 23use Data::Dumper;
21use Digest::MD5; 24use Digest::MD5;
22use Fcntl; 25use Fcntl;
23use IO::AIO 2.32 (); 26use IO::AIO 2.32 ();
24use YAML::Syck (); 27use YAML::Syck ();
25use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
26 30
31Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
32Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 33$Event::Eval = 1; # no idea why this is required, but it is
28 34
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 35sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 36
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 37# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 38$YAML::Syck::ImplicitUnicode = 1;
… …
39our @EXTS = (); # list of extension package names 45our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 46our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 47our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 48our %EXT_MAP = (); # pluggable maps
43 49
50our $RELOAD; # number of reloads so far
44our @EVENT; 51our @EVENT;
45our $LIBDIR = datadir . "/ext"; 52our $LIBDIR = datadir . "/ext";
46 53
47our $TICK = MAX_TIME * 1e-6; 54our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 55our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 56our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 57our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 58our $NEXT_TICK;
52our $NOW; 59our $NOW;
60our $USE_FSYNC = 1; # use fsync to write maps - default off
61
62our $BDB_POLL_WATCHER;
63our $DB_ENV;
53 64
54our %CFG; 65our %CFG;
55 66
56our $UPTIME; $UPTIME ||= time; 67our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 68our $RUNTIME;
58 69
59our %PLAYER; # all users 70our %PLAYER; # all users
60our %MAP; # all maps 71our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 72our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 73our $RANDOM_MAPS = cf::localdir . "/random";
74our $BDB_ENV_DIR = cf::localdir . "/db";
63 75
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 76our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 77our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 78
67# used to convert map paths into valid unix filenames by replacing / by ∕ 79# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 92mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 93mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 94mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 95mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 96mkdir $RANDOM_MAPS;
97mkdir $BDB_ENV_DIR;
85 98
86our $EMERGENCY_POSITION; 99our $EMERGENCY_POSITION;
100
101sub cf::map::normalise;
87 102
88############################################################################# 103#############################################################################
89 104
90=head2 GLOBAL VARIABLES 105=head2 GLOBAL VARIABLES
91 106
… …
261sub freeze_mainloop { 276sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 277 return unless $TICK_WATCHER->is_active;
263 278
264 my $guard = Coro::guard { 279 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 280 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 281 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 282 $TICK_WATCHER->stop;
270 $guard 283 $guard
271} 284}
272 285
273=item cf::async { BLOCK } 286=item cf::async { BLOCK }
… …
344 357
345 $coro 358 $coro
346} 359}
347 360
348sub write_runtime { 361sub write_runtime {
362 my $guard = cf::lock_acquire "write_runtime";
363
349 my $runtime = cf::localdir . "/runtime"; 364 my $runtime = cf::localdir . "/runtime";
350 365
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 366 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 367 or return;
353 368
… …
356 # 60 allows for the watchdog to kill the server. 371 # 60 allows for the watchdog to kill the server.
357 372
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 373 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 374 and return;
360 375
376 # always fsync - this file is important
361 aio_fsync $fh 377 aio_fsync $fh
362 and return; 378 and return;
363 379
364 close $fh 380 close $fh
365 or return; 381 or return;
… …
750 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
751 767
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 772 close $fh;
757 773
758 if (@$objs) { 774 if (@$objs) {
759 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 775 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 780 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
766 } 782 }
767 } else { 783 } else {
768 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
… …
1017=cut 1033=cut
1018 1034
1019sub quit_character { 1035sub quit_character {
1020 my ($pl) = @_; 1036 my ($pl) = @_;
1021 1037
1038 my $name = $pl->ob->name;
1039
1022 $pl->{deny_save} = 1; 1040 $pl->{deny_save} = 1;
1023 $pl->password ("*"); # this should lock out the player until we nuked the dir 1041 $pl->password ("*"); # this should lock out the player until we nuked the dir
1024 1042
1025 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026 $pl->deactivate; 1044 $pl->deactivate;
… …
1030 my $path = playerdir $pl; 1048 my $path = playerdir $pl;
1031 my $temp = "$path~$cf::RUNTIME~deleting~"; 1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1032 aio_rename $path, $temp; 1050 aio_rename $path, $temp;
1033 delete $cf::PLAYER{$pl->ob->name}; 1051 delete $cf::PLAYER{$pl->ob->name};
1034 $pl->destroy; 1052 $pl->destroy;
1053
1054 my $prefix = qr<^~\Q$name\E/>;
1055
1056 # nuke player maps
1057 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1058
1035 IO::AIO::aio_rmtree $temp; 1059 IO::AIO::aio_rmtree $temp;
1060}
1061
1062=item $pl->kick
1063
1064Kicks a player out of the game. This destroys the connection.
1065
1066=cut
1067
1068sub kick {
1069 my ($pl, $kicker) = @_;
1070
1071 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1072 $pl->killer ("kicked");
1073 $pl->ns->destroy;
1036} 1074}
1037 1075
1038=item cf::player::list_logins 1076=item cf::player::list_logins
1039 1077
1040Returns am arrayref of all valid playernames in the system, can take a 1078Returns am arrayref of all valid playernames in the system, can take a
… …
1068=cut 1106=cut
1069 1107
1070sub maps($) { 1108sub maps($) {
1071 my ($pl) = @_; 1109 my ($pl) = @_;
1072 1110
1111 $pl = ref $pl ? $pl->ob->name : $pl;
1112
1073 my $files = aio_readdir playerdir $pl 1113 my $files = aio_readdir playerdir $pl
1074 or return; 1114 or return;
1075 1115
1076 my @paths; 1116 my @paths;
1077 1117
1078 for (@$files) { 1118 for (@$files) {
1079 utf8::decode $_; 1119 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1120 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1121 next unless /^$PATH_SEP/o;
1082 1122
1083 s/\.map$//; 1123 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1124 }
1086 1125
1087 \@paths 1126 \@paths
1088} 1127}
1089 1128
… …
1178sub normalise { 1217sub normalise {
1179 my ($path, $base) = @_; 1218 my ($path, $base) = @_;
1180 1219
1181 $path = "$path"; # make sure its a string 1220 $path = "$path"; # make sure its a string
1182 1221
1222 $path =~ s/\.map$//;
1223
1183 # map plan: 1224 # map plan:
1184 # 1225 #
1185 # /! non-realised random map exit (special hack!) 1226 # /! non-realised random map exit (special hack!)
1186 # {... are special paths that are not being touched 1227 # {... are special paths that are not being touched
1187 # ?xxx/... are special absolute paths 1228 # ?xxx/... are special absolute paths
… …
1248 1289
1249# the original (read-only) location 1290# the original (read-only) location
1250sub load_path { 1291sub load_path {
1251 my ($self) = @_; 1292 my ($self) = @_;
1252 1293
1253 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1294 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1254} 1295}
1255 1296
1256# the temporary/swap location 1297# the temporary/swap location
1257sub save_path { 1298sub save_path {
1258 my ($self) = @_; 1299 my ($self) = @_;
1259 1300
1260 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1301 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1302 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1262} 1303}
1263 1304
1264# the unique path, undef == no special unique path 1305# the unique path, undef == no special unique path
1265sub uniq_path { 1306sub uniq_path {
1266 my ($self) = @_; 1307 my ($self) = @_;
… …
1288 1329
1289sub load_header_from($) { 1330sub load_header_from($) {
1290 my ($self, $path) = @_; 1331 my ($self, $path) = @_;
1291 1332
1292 utf8::encode $path; 1333 utf8::encode $path;
1293 aio_open $path, O_RDONLY, 0 1334 #aio_open $path, O_RDONLY, 0
1294 or return; 1335 # or return;
1295 1336
1296 $self->_load_header ($path) 1337 $self->_load_header ($path)
1297 or return; 1338 or return;
1298 1339
1299 $self->{load_path} = $path; 1340 $self->{load_path} = $path;
… …
1362 $map->{last_save} = $cf::RUNTIME; 1403 $map->{last_save} = $cf::RUNTIME;
1363 1404
1364 $map->load_header 1405 $map->load_header
1365 or return; 1406 or return;
1366 1407
1367 if ($map->should_reset) { 1408 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1368 # doing this can freeze the server in a sync job, obviously 1409 # doing this can freeze the server in a sync job, obviously
1369 #$cf::WAIT_FOR_TICK->wait; 1410 #$cf::WAIT_FOR_TICK->wait;
1370 $map->reset; 1411 $map->reset;
1371 undef $guard; 1412 undef $guard;
1372 return find $path; 1413 return find $path;
… …
1379sub pre_load { } 1420sub pre_load { }
1380sub post_load { } 1421sub post_load { }
1381 1422
1382sub load { 1423sub load {
1383 my ($self) = @_; 1424 my ($self) = @_;
1425
1426 local $self->{deny_reset} = 1; # loading can take a long time
1384 1427
1385 my $path = $self->{path}; 1428 my $path = $self->{path};
1386 my $guard = cf::lock_acquire "map_load:$path"; 1429 my $guard = cf::lock_acquire "map_load:$path";
1387 1430
1388 return if $self->in_memory != cf::MAP_SWAPPED; 1431 return if $self->in_memory != cf::MAP_SWAPPED;
… …
1577 return if $self->players; 1620 return if $self->players;
1578 return if $self->isa ("ext::map_per_player");#d# 1621 return if $self->isa ("ext::map_per_player");#d#
1579 1622
1580 warn "resetting map ", $self->path;#d# 1623 warn "resetting map ", $self->path;#d#
1581 1624
1625 $self->in_memory (cf::MAP_SWAPPED);
1626
1627 # need to save uniques path
1628 unless ($self->{deny_save}) {
1629 my $uniq = $self->uniq_path; utf8::encode $uniq;
1630
1631 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1632 if $uniq;
1633 }
1634
1582 delete $cf::MAP{$self->path}; 1635 delete $cf::MAP{$self->path};
1583 1636
1584 $self->in_memory (cf::MAP_SWAPPED);
1585 $self->clear; 1637 $self->clear;
1586 1638
1587 $_->clear_links_to ($self) for values %cf::MAP; 1639 $_->clear_links_to ($self) for values %cf::MAP;
1588 1640
1589 $self->unlink_save; 1641 $self->unlink_save;
… …
1626 for (@$files) { 1678 for (@$files) {
1627 utf8::decode $_; 1679 utf8::decode $_;
1628 next if /\.pst$/; 1680 next if /\.pst$/;
1629 next unless /^$PATH_SEP/o; 1681 next unless /^$PATH_SEP/o;
1630 1682
1631 s/\.map$//; 1683 push @paths, cf::map::normalise $_;
1632 push @paths, $_;
1633 } 1684 }
1634 1685
1635 \@paths 1686 \@paths
1636} 1687}
1637 1688
… …
1731=cut 1782=cut
1732 1783
1733sub link_map { 1784sub link_map {
1734 unless ($LINK_MAP) { 1785 unless ($LINK_MAP) {
1735 $LINK_MAP = cf::map::find "{link}" 1786 $LINK_MAP = cf::map::find "{link}"
1736 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1787 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737 $LINK_MAP->load; 1788 $LINK_MAP->load;
1738 } 1789 }
1739 1790
1740 $LINK_MAP 1791 $LINK_MAP
1741} 1792}
… …
1748 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1799 return if UNIVERSAL::isa $self->map, "ext::map_link";
1749 1800
1750 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1801 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751 if $self->map; 1802 if $self->map;
1752 1803
1753 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1804 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1754} 1805}
1755 1806
1756sub cf::object::player::leave_link { 1807sub cf::object::player::leave_link {
1757 my ($self, $map, $x, $y) = @_; 1808 my ($self, $map, $x, $y) = @_;
1758 1809
… …
1780 $map->load; 1831 $map->load;
1781 $map->load_diag; 1832 $map->load_diag;
1782 1833
1783 return unless $self->contr->active; 1834 return unless $self->contr->active;
1784 $self->activate_recursive; 1835 $self->activate_recursive;
1836
1837 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785 $self->enter_map ($map, $x, $y); 1838 $self->enter_map ($map, $x, $y);
1786} 1839}
1787 1840
1788cf::player->attach ( 1841cf::player->attach (
1789 on_logout => sub { 1842 on_logout => sub {
… …
1802 # try to abort aborted map switching on player login :) 1855 # try to abort aborted map switching on player login :)
1803 # should happen only on crashes 1856 # should happen only on crashes
1804 if ($pl->ob->{_link_pos}) { 1857 if ($pl->ob->{_link_pos}) {
1805 $pl->ob->enter_link; 1858 $pl->ob->enter_link;
1806 (async { 1859 (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, 1860 $pl->ob->reply (undef,
1810 "There was an internal problem at your last logout, " 1861 "There was an internal problem at your last logout, "
1811 . "the server will try to bring you to your intended destination in a second.", 1862 . "the server will try to bring you to your intended destination in a second.",
1812 cf::NDI_RED); 1863 cf::NDI_RED);
1864 # we need this sleep as the login has a concurrent enter_exit running
1865 # and this sleep increases chances of the player not ending up in scorn
1813 Coro::Timer::sleep 1; 1866 Coro::Timer::sleep 1;
1814 $pl->ob->leave_link; 1867 $pl->ob->leave_link;
1815 })->prio (2); 1868 })->prio (2);
1816 } 1869 }
1817 }, 1870 },
… …
1825 my ($self, $path, $x, $y) = @_; 1878 my ($self, $path, $x, $y) = @_;
1826 1879
1827 $self->enter_link; 1880 $self->enter_link;
1828 1881
1829 (async { 1882 (async {
1883 my $map = eval {
1830 my $map = cf::map::find $path; 1884 my $map = cf::map::find $path;
1831 $map = $map->customise_for ($self) if $map; 1885 $map = $map->customise_for ($self) if $map;
1832 1886 $map
1833# warn "entering ", $map->path, " at ($x, $y)\n" 1887 } or
1834# if $map;
1835
1836 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1888 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1837 1889
1838 $self->leave_link ($map, $x, $y); 1890 $self->leave_link ($map, $x, $y);
1839 })->prio (1); 1891 })->prio (1);
1840} 1892}
1841 1893
… …
1872 # that depends on the exit object 1924 # that depends on the exit object
1873 1925
1874 my $rmp = parse_random_map_params $exit->msg; 1926 my $rmp = parse_random_map_params $exit->msg;
1875 1927
1876 if ($exit->map) { 1928 if ($exit->map) {
1877 $rmp->{region} = $exit->map->region_name; 1929 $rmp->{region} = $exit->region->name;
1878 $rmp->{origin_map} = $exit->map->path; 1930 $rmp->{origin_map} = $exit->map->path;
1879 $rmp->{origin_x} = $exit->x; 1931 $rmp->{origin_x} = $exit->x;
1880 $rmp->{origin_y} = $exit->y; 1932 $rmp->{origin_y} = $exit->y;
1881 } 1933 }
1882 1934
… …
1899sub cf::object::player::enter_exit { 1951sub cf::object::player::enter_exit {
1900 my ($self, $exit) = @_; 1952 my ($self, $exit) = @_;
1901 1953
1902 return unless $self->type == cf::PLAYER; 1954 return unless $self->type == cf::PLAYER;
1903 1955
1956 if ($exit->slaying eq "/!") {
1957 #TODO: this should de-fi-ni-te-ly not be a sync-job
1958 cf::sync_job { prepare_random_map $exit };
1959 }
1960
1961 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962 my $hp = $exit->stats->hp;
1963 my $sp = $exit->stats->sp;
1964
1904 $self->enter_link; 1965 $self->enter_link;
1905 1966
1906 (async { 1967 (async {
1907 $self->deactivate_recursive; # just to be sure 1968 $self->deactivate_recursive; # just to be sure
1908 unless (eval { 1969 unless (eval {
1909 prepare_random_map $exit 1970 $self->goto ($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 1971
1915 1; 1972 1;
1916 }) { 1973 }) {
1917 $self->message ("Something went wrong deep within the crossfire server. " 1974 $self->message ("Something went wrong deep within the crossfire server. "
1918 . "I'll try to bring you back to the map you were before. " 1975 . "I'll try to bring you back to the map you were before. "
… …
1938 1995
1939sub cf::client::send_drawinfo { 1996sub cf::client::send_drawinfo {
1940 my ($self, $text, $flags) = @_; 1997 my ($self, $text, $flags) = @_;
1941 1998
1942 utf8::encode $text; 1999 utf8::encode $text;
1943 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2000 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1944} 2001}
1945 2002
1946 2003
1947=item $success = $client->query ($flags, "text", \&cb) 2004=item $success = $client->query ($flags, "text", \&cb)
1948 2005
… …
1979 # get handled first 2036 # get handled first
1980 my $queue = delete $ns->{query_queue} 2037 my $queue = delete $ns->{query_queue}
1981 or return; # be conservative, not sure how that can happen, but we saw a crash here 2038 or return; # be conservative, not sure how that can happen, but we saw a crash here
1982 2039
1983 (shift @$queue)->[1]->($msg); 2040 (shift @$queue)->[1]->($msg);
2041 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1984 2042
1985 push @{ $ns->{query_queue} }, @$queue; 2043 push @{ $ns->{query_queue} }, @$queue;
1986 2044
1987 if (@{ $ns->{query_queue} } == @$queue) { 2045 if (@{ $ns->{query_queue} } == @$queue) {
1988 if (@$queue) { 2046 if (@$queue) {
… …
2149The parameter C<$family> should best start with the name of the extension 2207The parameter C<$family> should best start with the name of the extension
2150using it, it should be unique. 2208using it, it should be unique.
2151 2209
2152=over 4 2210=over 4
2153 2211
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 2212=item $value = cf::db_get $family => $key
2161 2213
2162Returns a single value from the database 2214Returns 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 2215
2169=item cf::db_put $family => $key => $value 2216=item cf::db_put $family => $key => $value
2170 2217
2171Stores the given C<$value> in the family hash. Updates are delayed, if you 2218Stores 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 2219
2182=cut 2220=cut
2183 2221
2184our $DB; 2222our $DB;
2185 2223
2186{ 2224sub db_init {
2225 unless ($DB) {
2226 $DB = BDB::db_create $DB_ENV;
2227
2228 cf::sync_job {
2229 eval {
2230 $DB->set_flags (BDB::CHKSUM);
2231
2232 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234 cf::cleanup "db_open(db): $!" if $!;
2235 };
2236 cf::cleanup "db_open(db): $@" if $@;
2237 };
2238
2187 my $path = cf::localdir . "/database.pst"; 2239 my $path = cf::localdir . "/database.pst";
2240 if (stat $path) {
2241 cf::sync_job {
2242 my $pst = Storable::retrieve $path;
2188 2243
2189 sub db_load() { 2244 cf::db_put (board => data => $pst->{board});
2190 $DB = stat $path ? Storable::retrieve $path : { }; 2245 cf::db_put (guildrules => data => $pst->{guildrules});
2191 } 2246 cf::db_put (rent => balance => $pst->{rent}{balance});
2247 BDB::db_env_txn_checkpoint $DB_ENV;
2192 2248
2193 my $pid; 2249 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 } 2250 };
2251 }
2203 } 2252 }
2253}
2204 2254
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 $idle->start;
2224 }
2225
2226 sub db_get($;$) { 2255sub db_get($$) {
2227 @_ >= 2 2256 my $key = "$_[0]/$_[1]";
2228 ? $DB->{$_[0]}{$_[1]}
2229 : ($DB->{$_[0]} ||= { })
2230 }
2231 2257
2258 cf::sync_job {
2259 BDB::db_get $DB, undef, $key, my $data;
2260
2261 $! ? ()
2262 : Compress::LZF::sthaw $data
2263 }
2264}
2265
2232 sub db_put($$;$) { 2266sub db_put($$$) {
2233 if (@_ >= 3) { 2267 BDB::dbreq_pri 4;
2234 $DB->{$_[0]}{$_[1]} = $_[2]; 2268 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269}
2270
2271#############################################################################
2272# the server's init and main functions
2273
2274sub load_faces {
2275 my $path = sprintf "%s/faces", cf::datadir;
2276
2277 warn "loading faces from $path\n";
2278
2279 my $faces;
2280 0 < aio_load $path, $faces
2281 or die "$path: $!";
2282
2283 Coro::cede;
2284 $faces = Storable::thaw $faces;
2285 Coro::cede;
2286
2287 while (my ($face, $info) = each %$faces) {
2288 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2289 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2290 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2291 Coro::cede;
2292 }
2293
2294 while (my ($face, $info) = each %$faces) {
2295 next unless $info->{smooth};
2296 my $idx = cf::face::find $face
2297 or next;
2298 if (my $smooth = cf::face::find $info->{smooth}) {
2299 cf::face::set_smooth $idx, $smooth;
2300 warn "smooth $idx,$smooth ($face,$info->{smooth})\n";#d#
2235 } else { 2301 } else {
2236 $DB->{$_[0]} = $_[1]; 2302 warn "smooth face '$info->{smooth}' not found for face '$face'";
2237 }
2238 db_dirty;
2239 }
2240
2241 cf::global->attach (
2242 prio => 10000,
2243 on_cleanup => sub {
2244 db_sync;
2245 }, 2303 }
2246 ); 2304 Coro::cede;
2247} 2305 }
2248 2306
2249############################################################################# 2307 1
2250# the server's main() 2308}
2309
2310sub reload_resources {
2311 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2312 or die "unable to load regions file\n";#d#
2313 load_faces
2314 or die "unable to load faces\n";#d#
2315}
2316
2317sub init {
2318 reload_resources;
2319}
2251 2320
2252sub cfg_load { 2321sub cfg_load {
2253 open my $fh, "<:utf8", cf::confdir . "/config" 2322 open my $fh, "<:utf8", cf::confdir . "/config"
2254 or return; 2323 or return;
2255 2324
… …
2278 Event::one_event; 2347 Event::one_event;
2279 })->prio (Coro::PRIO_MAX); 2348 })->prio (Coro::PRIO_MAX);
2280 }; 2349 };
2281 2350
2282 cfg_load; 2351 cfg_load;
2283 db_load; 2352 db_init;
2284 load_extensions; 2353 load_extensions;
2285 2354
2286 $TICK_WATCHER->start; 2355 $TICK_WATCHER->start;
2287 Event::loop; 2356 Event::loop;
2288} 2357}
… …
2327 my $map = $cf::MAP{$path} or next; 2396 my $map = $cf::MAP{$path} or next;
2328 $map->valid or next; 2397 $map->valid or next;
2329 $map->save; 2398 $map->save;
2330 } 2399 }
2331 warn "end emergency map save\n"; 2400 warn "end emergency map save\n";
2401
2402 warn "begin emergency database checkpoint\n";
2403 BDB::db_env_txn_checkpoint $DB_ENV;
2404 warn "end emergency database checkpoint\n";
2332 }; 2405 };
2333 2406
2334 warn "leave emergency perl save\n"; 2407 warn "leave emergency perl save\n";
2408}
2409
2410sub post_cleanup {
2411 my ($make_core) = @_;
2412
2413 warn Carp::longmess "post_cleanup backtrace"
2414 if $make_core;
2335} 2415}
2336 2416
2337sub reload() { 2417sub reload() {
2338 # can/must only be called in main 2418 # can/must only be called in main
2339 if ($Coro::current != $Coro::main) { 2419 if ($Coro::current != $Coro::main) {
… …
2341 return; 2421 return;
2342 } 2422 }
2343 2423
2344 warn "reloading..."; 2424 warn "reloading...";
2345 2425
2346 warn "cancelling server ticker"; 2426 warn "entering sync_job";
2347 $TICK_WATCHER->cancel;
2348 2427
2428 cf::sync_job {
2429 cf::write_runtime; # external watchdog should not bark
2349 cf::emergency_save; 2430 cf::emergency_save;
2431 cf::write_runtime; # external watchdog should not bark
2350 2432
2351 eval { 2433 warn "syncing database to disk";
2434 BDB::db_env_txn_checkpoint $DB_ENV;
2435
2352 # if anything goes wrong in here, we should simply crash as we already saved 2436 # 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 2437
2357 warn "cancelling all WF_AUTOCANCEL watchers"; 2438 warn "cancelling all WF_AUTOCANCEL watchers";
2358 for (Event::all_watchers) { 2439 for (Event::all_watchers) {
2359 $_->cancel if $_->data & WF_AUTOCANCEL; 2440 $_->cancel if $_->data & WF_AUTOCANCEL;
2360 } 2441 }
2361 2442
2362 warn "flushing outstanding aio requests"; 2443 warn "flushing outstanding aio requests";
2363 for (;;) { 2444 for (;;) {
2445 BDB::flush;
2364 IO::AIO::flush; 2446 IO::AIO::flush;
2365 Coro::cede; 2447 Coro::cede;
2366 last unless IO::AIO::nreqs; 2448 last unless IO::AIO::nreqs || BDB::nreqs;
2367 warn "iterate..."; 2449 warn "iterate...";
2368 } 2450 }
2451
2452 ++$RELOAD;
2369 2453
2370 warn "cancelling all extension coros"; 2454 warn "cancelling all extension coros";
2371 $_->cancel for values %EXT_CORO; 2455 $_->cancel for values %EXT_CORO;
2372 %EXT_CORO = (); 2456 %EXT_CORO = ();
2373 2457
… …
2426 require cf; 2510 require cf;
2427 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2511 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2428 2512
2429 warn "loading config and database again"; 2513 warn "loading config and database again";
2430 cf::cfg_load; 2514 cf::cfg_load;
2431 cf::db_load;
2432 2515
2433 warn "loading extensions"; 2516 warn "loading extensions";
2434 cf::load_extensions; 2517 cf::load_extensions;
2435 2518
2436 warn "reattaching attachments to objects/players"; 2519 warn "reattaching attachments to objects/players";
2437 _global_reattach; 2520 _global_reattach; # objects, sockets
2438 warn "reattaching attachments to maps"; 2521 warn "reattaching attachments to maps";
2439 reattach $_ for values %MAP; 2522 reattach $_ for values %MAP;
2523 warn "reattaching attachments to players";
2524 reattach $_ for values %PLAYER;
2440 2525
2441 warn "restarting server ticker"; 2526 warn "loading reloadable resources";
2527 reload_resources;
2442 2528
2443 $TICK_WATCHER->start; 2529 warn "leaving sync_job";
2444 };
2445 2530
2446 if ($@) { 2531 1
2532 } or do {
2447 warn $@; 2533 warn $@;
2448 warn "error while reloading, exiting."; 2534 warn "error while reloading, exiting.";
2449 exit 1; 2535 exit 1;
2450 } 2536 };
2451 2537
2452 warn "reloaded"; 2538 warn "reloaded";
2453}; 2539};
2454 2540
2455our $RELOAD_WATCHER; # used only during reload 2541our $RELOAD_WATCHER; # used only during reload
… …
2496 2582
2497 cf::server_tick; # one server iteration 2583 cf::server_tick; # one server iteration
2498 $RUNTIME += $TICK; 2584 $RUNTIME += $TICK;
2499 $NEXT_TICK += $TICK; 2585 $NEXT_TICK += $TICK;
2500 2586
2587 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2588 $NEXT_RUNTIME_WRITE = $NOW + 10;
2589 Coro::async_pool {
2590 write_runtime
2591 or warn "ERROR: unable to write runtime file: $!";
2592 };
2593 }
2594
2501 $WAIT_FOR_TICK->broadcast; 2595 $WAIT_FOR_TICK->broadcast;
2502 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2596 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2503 2597
2504 Event::sweep;
2505 Coro::cede_notself;
2506
2507# my $AFTER = Event::time; 2598# my $AFTER = Event::time;
2508# warn $AFTER - $NOW;#d# 2599# warn $AFTER - $NOW;#d#
2509 2600
2510 # if we are delayed by four ticks or more, skip them all 2601 # if we are delayed by four ticks or more, skip them all
2511 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2602 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2513 $TICK_WATCHER->at ($NEXT_TICK); 2604 $TICK_WATCHER->at ($NEXT_TICK);
2514 $TICK_WATCHER->start; 2605 $TICK_WATCHER->start;
2515 }, 2606 },
2516); 2607);
2517 2608
2609{
2610 BDB::max_poll_time $TICK * 0.1;
2611 $BDB_POLL_WATCHER = Event->io (
2612 reentrant => 0,
2613 fd => BDB::poll_fileno,
2614 poll => 'r',
2615 prio => 0,
2616 data => WF_AUTOCANCEL,
2617 cb => \&BDB::poll_cb,
2618 );
2619 BDB::min_parallel 8;
2620
2621 BDB::set_sync_prepare {
2622 my $status;
2623 my $current = $Coro::current;
2624 (
2625 sub {
2626 $status = $!;
2627 $current->ready; undef $current;
2628 },
2629 sub {
2630 Coro::schedule while defined $current;
2631 $! = $status;
2632 },
2633 )
2634 };
2635
2636 unless ($DB_ENV) {
2637 $DB_ENV = BDB::db_env_create;
2638
2639 cf::sync_job {
2640 eval {
2641 BDB::db_env_open
2642 $DB_ENV,
2643 $BDB_ENV_DIR,
2644 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2645 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2646 0666;
2647
2648 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2649
2650 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2651 $DB_ENV->set_lk_detect;
2652 };
2653
2654 cf::cleanup "db_env_open(db): $@" if $@;
2655 };
2656 }
2657}
2658
2659{
2660 IO::AIO::min_parallel 8;
2661
2662 undef $Coro::AIO::WATCHER;
2518IO::AIO::max_poll_time $TICK * 0.1; 2663 IO::AIO::max_poll_time $TICK * 0.1;
2519
2520undef $Coro::AIO::WATCHER;
2521$AIO_POLL_WATCHER = Event->io ( 2664 $AIO_POLL_WATCHER = Event->io (
2522 reentrant => 0, 2665 reentrant => 0,
2666 data => WF_AUTOCANCEL,
2523 fd => IO::AIO::poll_fileno, 2667 fd => IO::AIO::poll_fileno,
2524 poll => 'r', 2668 poll => 'r',
2525 prio => 6, 2669 prio => 6,
2526 data => WF_AUTOCANCEL,
2527 cb => \&IO::AIO::poll_cb, 2670 cb => \&IO::AIO::poll_cb,
2528); 2671 );
2529 2672}
2530$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 2673
2542END { cf::emergency_save } 2674END { cf::emergency_save }
2543 2675
25441 26761
2545 2677

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