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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.188 by root, Sat Jan 20 23:30:16 2007 UTC vs.
Revision 1.208 by root, Mon Feb 12 00:27:20 2007 UTC

… …
8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.4 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
20use Data::Dumper; 21use Data::Dumper;
21use Digest::MD5; 22use Digest::MD5;
22use Fcntl; 23use Fcntl;
23use IO::AIO 2.32 (); 24use IO::AIO 2.32 ();
24use YAML::Syck (); 25use YAML::Syck ();
25use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26 30
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
28 32
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 34
… …
48our $TICK_WATCHER; 52our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 53our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 54our $WRITE_RUNTIME_WATCHER;
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
… …
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";
… …
774 } 787 }
775 } else { 788 } else {
776 aio_unlink $filename; 789 aio_unlink $filename;
777 aio_unlink "$filename.pst"; 790 aio_unlink "$filename.pst";
778 } 791 }
792
793 #d##TODO# nuke non .map-files if exist
794 if ($filename =~ s/\.map$//) {
795 aio_unlink $filename;
796 aio_unlink "$filename.pst";
797 }
779 } 798 }
780} 799}
781 800
782sub object_freezer_as_string { 801sub object_freezer_as_string {
783 my ($rdata, $objs) = @_; 802 my ($rdata, $objs) = @_;
… …
789 808
790sub object_thawer_load { 809sub object_thawer_load {
791 my ($filename) = @_; 810 my ($filename) = @_;
792 811
793 my ($data, $av); 812 my ($data, $av);
813
814 #d#TODO remove .map if file does not exist
815 aio_stat $filename and $filename =~ s/\.map$//;
794 816
795 (aio_load $filename, $data) >= 0 817 (aio_load $filename, $data) >= 0
796 or return; 818 or return;
797 819
798 unless (aio_stat "$filename.pst") { 820 unless (aio_stat "$filename.pst") {
… …
1068=cut 1090=cut
1069 1091
1070sub maps($) { 1092sub maps($) {
1071 my ($pl) = @_; 1093 my ($pl) = @_;
1072 1094
1095 $pl = ref $pl ? $pl->ob->name : $pl;
1096
1073 my $files = aio_readdir playerdir $pl 1097 my $files = aio_readdir playerdir $pl
1074 or return; 1098 or return;
1075 1099
1076 my @paths; 1100 my @paths;
1077 1101
1078 for (@$files) { 1102 for (@$files) {
1079 utf8::decode $_; 1103 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1104 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1105 next unless /^$PATH_SEP/o;
1082 1106
1083 s/\.map$//; 1107 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1108 }
1086 1109
1087 \@paths 1110 \@paths
1088} 1111}
1089 1112
… …
1176} 1199}
1177 1200
1178sub normalise { 1201sub normalise {
1179 my ($path, $base) = @_; 1202 my ($path, $base) = @_;
1180 1203
1204 $path = "$path"; # make sure its a string
1205
1206 $path =~ s/\.map$//;
1207
1181 # map plan: 1208 # map plan:
1182 # 1209 #
1183 # /! non-realised random map exit (special hack!) 1210 # /! non-realised random map exit (special hack!)
1184 # {... are special paths that are not being touched 1211 # {... are special paths that are not being touched
1185 # ?xxx/... are special absolute paths 1212 # ?xxx/... are special absolute paths
… …
1221 $self->init; # pass $1 etc. 1248 $self->init; # pass $1 etc.
1222 return $self; 1249 return $self;
1223 } 1250 }
1224 } 1251 }
1225 1252
1226 Carp::carp "unable to resolve path '$path'."; 1253 Carp::carp "unable to resolve path '$path' (base '$base').";
1227 () 1254 ()
1228} 1255}
1229 1256
1230sub init { 1257sub init {
1231 my ($self) = @_; 1258 my ($self) = @_;
… …
1246 1273
1247# the original (read-only) location 1274# the original (read-only) location
1248sub load_path { 1275sub load_path {
1249 my ($self) = @_; 1276 my ($self) = @_;
1250 1277
1251 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1278 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1252} 1279}
1253 1280
1254# the temporary/swap location 1281# the temporary/swap location
1255sub save_path { 1282sub save_path {
1256 my ($self) = @_; 1283 my ($self) = @_;
1257 1284
1258 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1285 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1286 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1260} 1287}
1261 1288
1262# the unique path, undef == no special unique path 1289# the unique path, undef == no special unique path
1263sub uniq_path { 1290sub uniq_path {
1264 my ($self) = @_; 1291 my ($self) = @_;
… …
1280 my ($self) = @_; 1307 my ($self) = @_;
1281 1308
1282 utf8::encode (my $save = $self->save_path); 1309 utf8::encode (my $save = $self->save_path);
1283 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1284 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1311 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313 #d#TODO remove .map and also nuke
1314 $save =~ s/\.map// or return;#d#
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1285} 1317}
1286 1318
1287sub load_header_from($) { 1319sub load_header_from($) {
1288 my ($self, $path) = @_; 1320 my ($self, $path) = @_;
1289 1321
1290 utf8::encode $path; 1322 utf8::encode $path;
1291 aio_open $path, O_RDONLY, 0 1323 #aio_open $path, O_RDONLY, 0
1292 or return; 1324 # or return;
1293 1325
1294 $self->_load_header ($path) 1326 $self->_load_header ($path)
1295 or return; 1327 or return;
1296 1328
1297 $self->{load_path} = $path; 1329 $self->{load_path} = $path;
… …
1360 $map->{last_save} = $cf::RUNTIME; 1392 $map->{last_save} = $cf::RUNTIME;
1361 1393
1362 $map->load_header 1394 $map->load_header
1363 or return; 1395 or return;
1364 1396
1365 if ($map->should_reset) { 1397 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1366 # doing this can freeze the server in a sync job, obviously 1398 # doing this can freeze the server in a sync job, obviously
1367 #$cf::WAIT_FOR_TICK->wait; 1399 #$cf::WAIT_FOR_TICK->wait;
1368 $map->reset; 1400 $map->reset;
1369 undef $guard; 1401 undef $guard;
1370 $map = find $path 1402 return find $path;
1371 or return;
1372 } 1403 }
1373 1404
1374 $cf::MAP{$path} = $map 1405 $cf::MAP{$path} = $map
1375 } 1406 }
1376} 1407}
… …
1378sub pre_load { } 1409sub pre_load { }
1379sub post_load { } 1410sub post_load { }
1380 1411
1381sub load { 1412sub load {
1382 my ($self) = @_; 1413 my ($self) = @_;
1414
1415 local $self->{deny_reset} = 1; # loading can take a long time
1383 1416
1384 my $path = $self->{path}; 1417 my $path = $self->{path};
1385 my $guard = cf::lock_acquire "map_load:$path"; 1418 my $guard = cf::lock_acquire "map_load:$path";
1386 1419
1387 return if $self->in_memory != cf::MAP_SWAPPED; 1420 return if $self->in_memory != cf::MAP_SWAPPED;
… …
1496 delete $MAP_PREFETCH{$path}; 1529 delete $MAP_PREFETCH{$path};
1497 } 1530 }
1498 } 1531 }
1499 undef $MAP_PREFETCHER; 1532 undef $MAP_PREFETCHER;
1500 }; 1533 };
1534 $MAP_PREFETCHER->prio (6);
1501 1535
1502 () 1536 ()
1503} 1537}
1504 1538
1505sub save { 1539sub save {
… …
1624 for (@$files) { 1658 for (@$files) {
1625 utf8::decode $_; 1659 utf8::decode $_;
1626 next if /\.pst$/; 1660 next if /\.pst$/;
1627 next unless /^$PATH_SEP/o; 1661 next unless /^$PATH_SEP/o;
1628 1662
1629 s/\.map$//; 1663 push @paths, cf::map::normalise $_;
1630 push @paths, $_;
1631 } 1664 }
1632 1665
1633 \@paths 1666 \@paths
1634} 1667}
1635 1668
… …
1729=cut 1762=cut
1730 1763
1731sub link_map { 1764sub link_map {
1732 unless ($LINK_MAP) { 1765 unless ($LINK_MAP) {
1733 $LINK_MAP = cf::map::find "{link}" 1766 $LINK_MAP = cf::map::find "{link}"
1734 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1767 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1735 $LINK_MAP->load; 1768 $LINK_MAP->load;
1736 } 1769 }
1737 1770
1738 $LINK_MAP 1771 $LINK_MAP
1739} 1772}
… …
1746 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1779 return if UNIVERSAL::isa $self->map, "ext::map_link";
1747 1780
1748 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1781 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1749 if $self->map; 1782 if $self->map;
1750 1783
1751 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1784 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1752} 1785}
1753 1786
1754sub cf::object::player::leave_link { 1787sub cf::object::player::leave_link {
1755 my ($self, $map, $x, $y) = @_; 1788 my ($self, $map, $x, $y) = @_;
1756 1789
… …
1823 my ($self, $path, $x, $y) = @_; 1856 my ($self, $path, $x, $y) = @_;
1824 1857
1825 $self->enter_link; 1858 $self->enter_link;
1826 1859
1827 (async { 1860 (async {
1861 my $map = eval {
1828 my $map = cf::map::find $path; 1862 my $map = cf::map::find $path;
1829 $map = $map->customise_for ($self) if $map; 1863 $map = $map->customise_for ($self) if $map;
1830 1864 $map
1831# warn "entering ", $map->path, " at ($x, $y)\n" 1865 } or
1832# if $map;
1833
1834 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1866 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1835 1867
1836 $self->leave_link ($map, $x, $y); 1868 $self->leave_link ($map, $x, $y);
1837 })->prio (1); 1869 })->prio (1);
1838} 1870}
1839 1871
… …
1870 # that depends on the exit object 1902 # that depends on the exit object
1871 1903
1872 my $rmp = parse_random_map_params $exit->msg; 1904 my $rmp = parse_random_map_params $exit->msg;
1873 1905
1874 if ($exit->map) { 1906 if ($exit->map) {
1875 $rmp->{region} = $exit->map->region_name; 1907 $rmp->{region} = $exit->region->name;
1876 $rmp->{origin_map} = $exit->map->path; 1908 $rmp->{origin_map} = $exit->map->path;
1877 $rmp->{origin_x} = $exit->x; 1909 $rmp->{origin_x} = $exit->x;
1878 $rmp->{origin_y} = $exit->y; 1910 $rmp->{origin_y} = $exit->y;
1879 } 1911 }
1880 1912
… …
1897sub cf::object::player::enter_exit { 1929sub cf::object::player::enter_exit {
1898 my ($self, $exit) = @_; 1930 my ($self, $exit) = @_;
1899 1931
1900 return unless $self->type == cf::PLAYER; 1932 return unless $self->type == cf::PLAYER;
1901 1933
1934 if ($exit->slaying eq "/!") {
1935 #TODO: this should de-fi-ni-te-ly not be a sync-job
1936 cf::sync_job { prepare_random_map $exit };
1937 }
1938
1939 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1940 my $hp = $exit->stats->hp;
1941 my $sp = $exit->stats->sp;
1942
1902 $self->enter_link; 1943 $self->enter_link;
1903 1944
1904 (async { 1945 (async {
1905 $self->deactivate_recursive; # just to be sure 1946 $self->deactivate_recursive; # just to be sure
1906 unless (eval { 1947 unless (eval {
1907 prepare_random_map $exit 1948 $self->goto ($slaying, $hp, $sp);
1908 if $exit->slaying eq "/!";
1909
1910 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1911 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1912 1949
1913 1; 1950 1;
1914 }) { 1951 }) {
1915 $self->message ("Something went wrong deep within the crossfire server. " 1952 $self->message ("Something went wrong deep within the crossfire server. "
1916 . "I'll try to bring you back to the map you were before. " 1953 . "I'll try to bring you back to the map you were before. "
… …
1977 # get handled first 2014 # get handled first
1978 my $queue = delete $ns->{query_queue} 2015 my $queue = delete $ns->{query_queue}
1979 or return; # be conservative, not sure how that can happen, but we saw a crash here 2016 or return; # be conservative, not sure how that can happen, but we saw a crash here
1980 2017
1981 (shift @$queue)->[1]->($msg); 2018 (shift @$queue)->[1]->($msg);
2019 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1982 2020
1983 push @{ $ns->{query_queue} }, @$queue; 2021 push @{ $ns->{query_queue} }, @$queue;
1984 2022
1985 if (@{ $ns->{query_queue} } == @$queue) { 2023 if (@{ $ns->{query_queue} } == @$queue) {
1986 if (@$queue) { 2024 if (@$queue) {
… …
2147The parameter C<$family> should best start with the name of the extension 2185The parameter C<$family> should best start with the name of the extension
2148using it, it should be unique. 2186using it, it should be unique.
2149 2187
2150=over 4 2188=over 4
2151 2189
2152=item $hashref = cf::db_get $family
2153
2154Return a hashref for use by the extension C<$family>, which can be
2155modified. After modifications, you have to call C<cf::db_dirty> or
2156C<cf::db_sync>.
2157
2158=item $value = cf::db_get $family => $key 2190=item $value = cf::db_get $family => $key
2159 2191
2160Returns a single value from the database 2192Returns a single value from the database.
2161
2162=item cf::db_put $family => $hashref
2163
2164Stores the given family hashref into the database. Updates are delayed, if
2165you want the data to be synced to disk immediately, use C<cf::db_sync>.
2166 2193
2167=item cf::db_put $family => $key => $value 2194=item cf::db_put $family => $key => $value
2168 2195
2169Stores the given C<$value> in the family hash. Updates are delayed, if you 2196Stores the given C<$value> in the family.
2170want the data to be synced to disk immediately, use C<cf::db_sync>.
2171
2172=item cf::db_dirty
2173
2174Marks the database as dirty, to be updated at a later time.
2175
2176=item cf::db_sync
2177
2178Immediately write the database to disk I<if it is dirty>.
2179 2197
2180=cut 2198=cut
2181 2199
2182our $DB; 2200our $DB;
2183 2201
2184{ 2202sub db_load() {
2203 unless ($DB) {
2204 $DB = BDB::db_create $DB_ENV;
2205
2206 cf::sync_job {
2207 eval {
2208 $DB->set_flags (BDB::CHKSUM);
2209
2210 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2211 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2212 cf::cleanup "db_open(db): $!" if $!;
2213 };
2214 cf::cleanup "db_open(db): $@" if $@;
2215 };
2216
2185 my $path = cf::localdir . "/database.pst"; 2217 my $path = cf::localdir . "/database.pst";
2218 if (stat $path) {
2219 cf::sync_job {
2220 my $pst = Storable::retrieve $path;
2186 2221
2187 sub db_load() { 2222 cf::db_put (board => data => $pst->{board});
2188 $DB = stat $path ? Storable::retrieve $path : { }; 2223 cf::db_put (guildrules => data => $pst->{guildrules});
2189 } 2224 cf::db_put (rent => balance => $pst->{rent}{balance});
2225 BDB::db_env_txn_checkpoint $DB_ENV;
2190 2226
2191 my $pid; 2227 unlink $path;
2192
2193 sub db_save() {
2194 waitpid $pid, 0 if $pid;
2195 if (0 == ($pid = fork)) {
2196 $DB->{_meta}{version} = 1;
2197 Storable::nstore $DB, "$path~";
2198 rename "$path~", $path;
2199 cf::_exit 0 if defined $pid;
2200 } 2228 };
2201 }
2202
2203 my $dirty;
2204
2205 sub db_sync() {
2206 db_save if $dirty;
2207 undef $dirty;
2208 }
2209
2210 my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2211 db_sync;
2212 });
2213
2214 sub db_dirty() {
2215 $dirty = 1;
2216 $idle->start;
2217 }
2218
2219 sub db_get($;$) {
2220 @_ >= 2
2221 ? $DB->{$_[0]}{$_[1]}
2222 : ($DB->{$_[0]} ||= { })
2223 }
2224
2225 sub db_put($$;$) {
2226 if (@_ >= 3) {
2227 $DB->{$_[0]}{$_[1]} = $_[2];
2228 } else {
2229 $DB->{$_[0]} = $_[1];
2230 }
2231 db_dirty;
2232 }
2233
2234 cf::global->attach (
2235 prio => 10000,
2236 on_cleanup => sub {
2237 db_sync;
2238 }, 2229 }
2239 ); 2230 }
2231}
2232
2233sub db_get($$) {
2234 my $key = "$_[0]/$_[1]";
2235
2236 cf::sync_job {
2237 BDB::db_get $DB, undef, $key, my $data;
2238
2239 $! ? ()
2240 : Compress::LZF::sthaw $data
2241 }
2242}
2243
2244sub db_put($$$) {
2245 BDB::dbreq_pri 4;
2246 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2240} 2247}
2241 2248
2242############################################################################# 2249#############################################################################
2243# the server's main() 2250# the server's init and main functions
2251
2252sub load_resources {
2253 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2254 or die "unable to load regions file\n";#d#
2255}
2244 2256
2245sub cfg_load { 2257sub cfg_load {
2246 open my $fh, "<:utf8", cf::confdir . "/config" 2258 open my $fh, "<:utf8", cf::confdir . "/config"
2247 or return; 2259 or return;
2248 2260
… …
2259 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2271 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2260 and die "WARNING: m(un)lockall failed: $!\n"; 2272 and die "WARNING: m(un)lockall failed: $!\n";
2261 }; 2273 };
2262 warn $@ if $@; 2274 warn $@ if $@;
2263 } 2275 }
2276}
2277
2278sub init {
2279 load_resources;
2264} 2280}
2265 2281
2266sub main { 2282sub main {
2267 # we must not ever block the main coroutine 2283 # we must not ever block the main coroutine
2268 local $Coro::idle = sub { 2284 local $Coro::idle = sub {
… …
2285 2301
2286# install some emergency cleanup handlers 2302# install some emergency cleanup handlers
2287BEGIN { 2303BEGIN {
2288 for my $signal (qw(INT HUP TERM)) { 2304 for my $signal (qw(INT HUP TERM)) {
2289 Event->signal ( 2305 Event->signal (
2306 reentrant => 0,
2290 data => WF_AUTOCANCEL, 2307 data => WF_AUTOCANCEL,
2291 signal => $signal, 2308 signal => $signal,
2309 prio => 0,
2292 cb => sub { 2310 cb => sub {
2293 cf::cleanup "SIG$signal"; 2311 cf::cleanup "SIG$signal";
2294 }, 2312 },
2295 ); 2313 );
2296 } 2314 }
2297} 2315}
… …
2318 my $map = $cf::MAP{$path} or next; 2336 my $map = $cf::MAP{$path} or next;
2319 $map->valid or next; 2337 $map->valid or next;
2320 $map->save; 2338 $map->save;
2321 } 2339 }
2322 warn "end emergency map save\n"; 2340 warn "end emergency map save\n";
2341
2342 warn "begin emergency database checkpoint\n";
2343 BDB::db_env_txn_checkpoint $DB_ENV;
2344 warn "end emergency database checkpoint\n";
2323 }; 2345 };
2324 2346
2325 warn "leave emergency perl save\n"; 2347 warn "leave emergency perl save\n";
2326} 2348}
2327 2349
… …
2340 cf::emergency_save; 2362 cf::emergency_save;
2341 2363
2342 eval { 2364 eval {
2343 # if anything goes wrong in here, we should simply crash as we already saved 2365 # if anything goes wrong in here, we should simply crash as we already saved
2344 2366
2345 warn "syncing database to disk";
2346 cf::db_sync;
2347
2348 warn "cancelling all WF_AUTOCANCEL watchers"; 2367 warn "cancelling all WF_AUTOCANCEL watchers";
2349 for (Event::all_watchers) { 2368 for (Event::all_watchers) {
2350 $_->cancel if $_->data & WF_AUTOCANCEL; 2369 $_->cancel if $_->data & WF_AUTOCANCEL;
2351 } 2370 }
2352 2371
2372 warn "syncing database to disk";
2373 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2374
2353 warn "flushing outstanding aio requests"; 2375 warn "flushing outstanding aio requests";
2354 for (;;) { 2376 for (;;) {
2377 BDB::flush;
2355 IO::AIO::flush; 2378 IO::AIO::flush;
2356 Coro::cede; 2379 Coro::cede;
2357 last unless IO::AIO::nreqs; 2380 last unless IO::AIO::nreqs || BDB::nreqs;
2358 warn "iterate..."; 2381 warn "iterate...";
2359 } 2382 }
2360 2383
2361 warn "cancelling all extension coros"; 2384 warn "cancelling all extension coros";
2362 $_->cancel for values %EXT_CORO; 2385 $_->cancel for values %EXT_CORO;
… …
2427 warn "reattaching attachments to objects/players"; 2450 warn "reattaching attachments to objects/players";
2428 _global_reattach; 2451 _global_reattach;
2429 warn "reattaching attachments to maps"; 2452 warn "reattaching attachments to maps";
2430 reattach $_ for values %MAP; 2453 reattach $_ for values %MAP;
2431 2454
2455 warn "loading reloadable resources";
2456 load_resources;
2457
2432 warn "restarting server ticker"; 2458 warn "restarting server ticker";
2433 2459
2434 $TICK_WATCHER->start; 2460 $TICK_WATCHER->start;
2435 }; 2461 };
2436 2462
… …
2452 $who->message ("reloading server."); 2478 $who->message ("reloading server.");
2453 2479
2454 # doing reload synchronously and two reloads happen back-to-back, 2480 # doing reload synchronously and two reloads happen back-to-back,
2455 # coro crashes during coro_state_free->destroy here. 2481 # coro crashes during coro_state_free->destroy here.
2456 2482
2457 $RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub { 2483 $RELOAD_WATCHER ||= Event->timer (
2484 reentrant => 0,
2485 after => 0,
2486 data => WF_AUTOCANCEL,
2487 cb => sub {
2458 reload; 2488 reload;
2459 undef $RELOAD_WATCHER; 2489 undef $RELOAD_WATCHER;
2490 },
2460 }); 2491 );
2461 } 2492 }
2462}; 2493};
2463 2494
2464unshift @INC, $LIBDIR; 2495unshift @INC, $LIBDIR;
2465 2496
… …
2485 $NEXT_TICK += $TICK; 2516 $NEXT_TICK += $TICK;
2486 2517
2487 $WAIT_FOR_TICK->broadcast; 2518 $WAIT_FOR_TICK->broadcast;
2488 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2519 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2489 2520
2521 Event::sweep;
2522 Coro::cede_notself;
2523
2524# my $AFTER = Event::time;
2525# warn $AFTER - $NOW;#d#
2526
2490 # if we are delayed by four ticks or more, skip them all 2527 # if we are delayed by four ticks or more, skip them all
2491 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2528 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2492 2529
2493 $TICK_WATCHER->at ($NEXT_TICK); 2530 $TICK_WATCHER->at ($NEXT_TICK);
2494 $TICK_WATCHER->start; 2531 $TICK_WATCHER->start;
2495 }, 2532 },
2496); 2533);
2497 2534
2535{
2536 BDB::max_poll_time $TICK * 0.1;
2537 $BDB_POLL_WATCHER = Event->io (
2538 reentrant => 0,
2539 fd => BDB::poll_fileno,
2540 poll => 'r',
2541 prio => 0,
2542 data => WF_AUTOCANCEL,
2543 cb => \&BDB::poll_cb,
2544 );
2545 BDB::min_parallel 8;
2546
2547 BDB::set_sync_prepare {
2548 my $status;
2549 my $current = $Coro::current;
2550 (
2551 sub {
2552 $status = $!;
2553 $current->ready; undef $current;
2554 },
2555 sub {
2556 Coro::schedule while defined $current;
2557 $! = $status;
2558 },
2559 )
2560 };
2561
2562 unless ($DB_ENV) {
2563 $DB_ENV = BDB::db_env_create;
2564
2565 cf::sync_job {
2566 eval {
2567 BDB::db_env_open
2568 $DB_ENV,
2569 $BDB_ENV_DIR,
2570 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2571 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2572 0666;
2573
2574 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2575
2576 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2577 $DB_ENV->set_lk_detect;
2578 };
2579
2580 cf::cleanup "db_env_open(db): $@" if $@;
2581 };
2582 }
2583}
2584
2585{
2586 IO::AIO::min_parallel 8;
2587
2588 undef $Coro::AIO::WATCHER;
2498IO::AIO::max_poll_time $TICK * 0.2; 2589 IO::AIO::max_poll_time $TICK * 0.1;
2499
2500$AIO_POLL_WATCHER = Event->io ( 2590 $AIO_POLL_WATCHER = Event->io (
2591 reentrant => 0,
2501 fd => IO::AIO::poll_fileno, 2592 fd => IO::AIO::poll_fileno,
2502 poll => 'r', 2593 poll => 'r',
2503 prio => 5, 2594 prio => 6,
2504 data => WF_AUTOCANCEL, 2595 data => WF_AUTOCANCEL,
2505 cb => \&IO::AIO::poll_cb, 2596 cb => \&IO::AIO::poll_cb,
2506); 2597 );
2598}
2507 2599
2508$WRITE_RUNTIME_WATCHER = Event->timer ( 2600$WRITE_RUNTIME_WATCHER = Event->timer (
2601 reentrant => 0,
2509 data => WF_AUTOCANCEL, 2602 data => WF_AUTOCANCEL,
2510 after => 1, 2603 after => 1,
2511 interval => 10, 2604 interval => 10,
2512 prio => 6, # keep it lowest so it acts like a watchdog 2605 prio => 6, # keep it lowest so it acts like a watchdog
2513 cb => Coro::unblock_sub { 2606 cb => Coro::unblock_sub {
2514 write_runtime 2607 write_runtime
2515 or warn "ERROR: unable to write runtime file: $!"; 2608 or warn "ERROR: unable to write runtime file: $!";
2516 }, 2609 },
2517); 2610);
2518 2611

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