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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 1.214 by root, Wed Feb 14 00:40:05 2007 UTC

… …
8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.4 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
20use Data::Dumper; 21use Data::Dumper;
21use Digest::MD5; 22use Digest::MD5;
22use Fcntl; 23use Fcntl;
23use IO::AIO 2.32 (); 24use IO::AIO 2.32 ();
24use YAML::Syck (); 25use YAML::Syck ();
25use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26 30
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
28 32
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 34
… …
45our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
46 50
47our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 52our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 53our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 55our $NEXT_TICK;
52our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
53 61
54our %CFG; 62our %CFG;
55 63
56our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 65our $RUNTIME;
58 66
59our %PLAYER; # all users 67our %PLAYER; # all users
60our %MAP; # all maps 68our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 69our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
63 72
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 75
67# used to convert map paths into valid unix filenames by replacing / by ∕ 76# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 89mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
85 95
86our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
97
98sub cf::map::normalise;
87 99
88############################################################################# 100#############################################################################
89 101
90=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
91 103
… …
261sub freeze_mainloop { 273sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
263 275
264 my $guard = Coro::guard { 276 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 277 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 278 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
270 $guard 280 $guard
271} 281}
272 282
273=item cf::async { BLOCK } 283=item cf::async { BLOCK }
… …
356 # 60 allows for the watchdog to kill the server. 366 # 60 allows for the watchdog to kill the server.
357 367
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 369 and return;
360 370
371 # always fsync - this file is important
361 aio_fsync $fh 372 aio_fsync $fh
362 and return; 373 and return;
363 374
364 close $fh 375 close $fh
365 or return; 376 or return;
… …
750 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
751 762
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 767 close $fh;
757 768
758 if (@$objs) { 769 if (@$objs) {
759 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 775 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
766 } 777 }
767 } else { 778 } else {
768 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
… …
774 } 785 }
775 } else { 786 } else {
776 aio_unlink $filename; 787 aio_unlink $filename;
777 aio_unlink "$filename.pst"; 788 aio_unlink "$filename.pst";
778 } 789 }
790
791 #d##TODO# nuke non .map-files if exist
792 if ($filename =~ s/\.map$//) {
793 aio_unlink $filename;
794 aio_unlink "$filename.pst";
795 }
779 } 796 }
780} 797}
781 798
782sub object_freezer_as_string { 799sub object_freezer_as_string {
783 my ($rdata, $objs) = @_; 800 my ($rdata, $objs) = @_;
… …
789 806
790sub object_thawer_load { 807sub object_thawer_load {
791 my ($filename) = @_; 808 my ($filename) = @_;
792 809
793 my ($data, $av); 810 my ($data, $av);
811
812 #d#TODO remove .map if file does not exist
813 aio_stat $filename and $filename =~ s/\.map$//;
794 814
795 (aio_load $filename, $data) >= 0 815 (aio_load $filename, $data) >= 0
796 or return; 816 or return;
797 817
798 unless (aio_stat "$filename.pst") { 818 unless (aio_stat "$filename.pst") {
… …
1068=cut 1088=cut
1069 1089
1070sub maps($) { 1090sub maps($) {
1071 my ($pl) = @_; 1091 my ($pl) = @_;
1072 1092
1093 $pl = ref $pl ? $pl->ob->name : $pl;
1094
1073 my $files = aio_readdir playerdir $pl 1095 my $files = aio_readdir playerdir $pl
1074 or return; 1096 or return;
1075 1097
1076 my @paths; 1098 my @paths;
1077 1099
1078 for (@$files) { 1100 for (@$files) {
1079 utf8::decode $_; 1101 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1102 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1103 next unless /^$PATH_SEP/o;
1082 1104
1083 s/\.map$//; 1105 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1106 }
1086 1107
1087 \@paths 1108 \@paths
1088} 1109}
1089 1110
… …
1176} 1197}
1177 1198
1178sub normalise { 1199sub normalise {
1179 my ($path, $base) = @_; 1200 my ($path, $base) = @_;
1180 1201
1202 $path = "$path"; # make sure its a string
1203
1204 $path =~ s/\.map$//;
1205
1181 # map plan: 1206 # map plan:
1182 # 1207 #
1183 # /! non-realised random map exit (special hack!) 1208 # /! non-realised random map exit (special hack!)
1184 # {... are special paths that are not being touched 1209 # {... are special paths that are not being touched
1185 # ?xxx/... are special absolute paths 1210 # ?xxx/... are special absolute paths
… …
1221 $self->init; # pass $1 etc. 1246 $self->init; # pass $1 etc.
1222 return $self; 1247 return $self;
1223 } 1248 }
1224 } 1249 }
1225 1250
1226 Carp::carp "unable to resolve path '$path'."; 1251 Carp::carp "unable to resolve path '$path' (base '$base').";
1227 () 1252 ()
1228} 1253}
1229 1254
1230sub init { 1255sub init {
1231 my ($self) = @_; 1256 my ($self) = @_;
… …
1246 1271
1247# the original (read-only) location 1272# the original (read-only) location
1248sub load_path { 1273sub load_path {
1249 my ($self) = @_; 1274 my ($self) = @_;
1250 1275
1251 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1276 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1252} 1277}
1253 1278
1254# the temporary/swap location 1279# the temporary/swap location
1255sub save_path { 1280sub save_path {
1256 my ($self) = @_; 1281 my ($self) = @_;
1257 1282
1258 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1283 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1284 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1260} 1285}
1261 1286
1262# the unique path, undef == no special unique path 1287# the unique path, undef == no special unique path
1263sub uniq_path { 1288sub uniq_path {
1264 my ($self) = @_; 1289 my ($self) = @_;
… …
1280 my ($self) = @_; 1305 my ($self) = @_;
1281 1306
1282 utf8::encode (my $save = $self->save_path); 1307 utf8::encode (my $save = $self->save_path);
1283 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1308 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1284 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1309 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311 #d#TODO remove .map and also nuke
1312 $save =~ s/\.map// or return;#d#
1313 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1285} 1315}
1286 1316
1287sub load_header_from($) { 1317sub load_header_from($) {
1288 my ($self, $path) = @_; 1318 my ($self, $path) = @_;
1289 1319
1290 utf8::encode $path; 1320 utf8::encode $path;
1291 aio_open $path, O_RDONLY, 0 1321 #aio_open $path, O_RDONLY, 0
1292 or return; 1322 # or return;
1293 1323
1294 $self->_load_header ($path) 1324 $self->_load_header ($path)
1295 or return; 1325 or return;
1296 1326
1297 $self->{load_path} = $path; 1327 $self->{load_path} = $path;
… …
1360 $map->{last_save} = $cf::RUNTIME; 1390 $map->{last_save} = $cf::RUNTIME;
1361 1391
1362 $map->load_header 1392 $map->load_header
1363 or return; 1393 or return;
1364 1394
1365 if ($map->should_reset) { 1395 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1366 # doing this can freeze the server in a sync job, obviously 1396 # doing this can freeze the server in a sync job, obviously
1367 #$cf::WAIT_FOR_TICK->wait; 1397 #$cf::WAIT_FOR_TICK->wait;
1368 $map->reset; 1398 $map->reset;
1369 undef $guard; 1399 undef $guard;
1370 $map = find $path 1400 return find $path;
1371 or return;
1372 } 1401 }
1373 1402
1374 $cf::MAP{$path} = $map 1403 $cf::MAP{$path} = $map
1375 } 1404 }
1376} 1405}
… …
1378sub pre_load { } 1407sub pre_load { }
1379sub post_load { } 1408sub post_load { }
1380 1409
1381sub load { 1410sub load {
1382 my ($self) = @_; 1411 my ($self) = @_;
1412
1413 local $self->{deny_reset} = 1; # loading can take a long time
1383 1414
1384 my $path = $self->{path}; 1415 my $path = $self->{path};
1385 my $guard = cf::lock_acquire "map_load:$path"; 1416 my $guard = cf::lock_acquire "map_load:$path";
1386 1417
1387 return if $self->in_memory != cf::MAP_SWAPPED; 1418 return if $self->in_memory != cf::MAP_SWAPPED;
… …
1496 delete $MAP_PREFETCH{$path}; 1527 delete $MAP_PREFETCH{$path};
1497 } 1528 }
1498 } 1529 }
1499 undef $MAP_PREFETCHER; 1530 undef $MAP_PREFETCHER;
1500 }; 1531 };
1532 $MAP_PREFETCHER->prio (6);
1501 1533
1502 () 1534 ()
1503} 1535}
1504 1536
1505sub save { 1537sub save {
… …
1575 return if $self->players; 1607 return if $self->players;
1576 return if $self->isa ("ext::map_per_player");#d# 1608 return if $self->isa ("ext::map_per_player");#d#
1577 1609
1578 warn "resetting map ", $self->path;#d# 1610 warn "resetting map ", $self->path;#d#
1579 1611
1612 $self->in_memory (cf::MAP_SWAPPED);
1613
1614 # need to save uniques path
1615 unless ($self->{deny_save}) {
1616 my $uniq = $self->uniq_path; utf8::encode $uniq;
1617
1618 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1619 if $uniq;
1620 }
1621
1580 delete $cf::MAP{$self->path}; 1622 delete $cf::MAP{$self->path};
1581 1623
1582 $self->in_memory (cf::MAP_SWAPPED);
1583 $self->clear; 1624 $self->clear;
1584 1625
1585 $_->clear_links_to ($self) for values %cf::MAP; 1626 $_->clear_links_to ($self) for values %cf::MAP;
1586 1627
1587 $self->unlink_save; 1628 $self->unlink_save;
… …
1624 for (@$files) { 1665 for (@$files) {
1625 utf8::decode $_; 1666 utf8::decode $_;
1626 next if /\.pst$/; 1667 next if /\.pst$/;
1627 next unless /^$PATH_SEP/o; 1668 next unless /^$PATH_SEP/o;
1628 1669
1629 s/\.map$//; 1670 push @paths, cf::map::normalise $_;
1630 push @paths, $_;
1631 } 1671 }
1632 1672
1633 \@paths 1673 \@paths
1634} 1674}
1635 1675
… …
1729=cut 1769=cut
1730 1770
1731sub link_map { 1771sub link_map {
1732 unless ($LINK_MAP) { 1772 unless ($LINK_MAP) {
1733 $LINK_MAP = cf::map::find "{link}" 1773 $LINK_MAP = cf::map::find "{link}"
1734 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1774 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1735 $LINK_MAP->load; 1775 $LINK_MAP->load;
1736 } 1776 }
1737 1777
1738 $LINK_MAP 1778 $LINK_MAP
1739} 1779}
… …
1746 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1786 return if UNIVERSAL::isa $self->map, "ext::map_link";
1747 1787
1748 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1788 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1749 if $self->map; 1789 if $self->map;
1750 1790
1751 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1791 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1752} 1792}
1753 1793
1754sub cf::object::player::leave_link { 1794sub cf::object::player::leave_link {
1755 my ($self, $map, $x, $y) = @_; 1795 my ($self, $map, $x, $y) = @_;
1756 1796
… …
1823 my ($self, $path, $x, $y) = @_; 1863 my ($self, $path, $x, $y) = @_;
1824 1864
1825 $self->enter_link; 1865 $self->enter_link;
1826 1866
1827 (async { 1867 (async {
1868 my $map = eval {
1828 my $map = cf::map::find $path; 1869 my $map = cf::map::find $path;
1829 $map = $map->customise_for ($self) if $map; 1870 $map = $map->customise_for ($self) if $map;
1830 1871 $map
1831# warn "entering ", $map->path, " at ($x, $y)\n" 1872 } or
1832# if $map;
1833
1834 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1873 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1835 1874
1836 $self->leave_link ($map, $x, $y); 1875 $self->leave_link ($map, $x, $y);
1837 })->prio (1); 1876 })->prio (1);
1838} 1877}
1839 1878
… …
1870 # that depends on the exit object 1909 # that depends on the exit object
1871 1910
1872 my $rmp = parse_random_map_params $exit->msg; 1911 my $rmp = parse_random_map_params $exit->msg;
1873 1912
1874 if ($exit->map) { 1913 if ($exit->map) {
1875 $rmp->{region} = $exit->map->region_name; 1914 $rmp->{region} = $exit->region->name;
1876 $rmp->{origin_map} = $exit->map->path; 1915 $rmp->{origin_map} = $exit->map->path;
1877 $rmp->{origin_x} = $exit->x; 1916 $rmp->{origin_x} = $exit->x;
1878 $rmp->{origin_y} = $exit->y; 1917 $rmp->{origin_y} = $exit->y;
1879 } 1918 }
1880 1919
… …
1897sub cf::object::player::enter_exit { 1936sub cf::object::player::enter_exit {
1898 my ($self, $exit) = @_; 1937 my ($self, $exit) = @_;
1899 1938
1900 return unless $self->type == cf::PLAYER; 1939 return unless $self->type == cf::PLAYER;
1901 1940
1941 if ($exit->slaying eq "/!") {
1942 #TODO: this should de-fi-ni-te-ly not be a sync-job
1943 cf::sync_job { prepare_random_map $exit };
1944 }
1945
1946 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1947 my $hp = $exit->stats->hp;
1948 my $sp = $exit->stats->sp;
1949
1902 $self->enter_link; 1950 $self->enter_link;
1903 1951
1904 (async { 1952 (async {
1905 $self->deactivate_recursive; # just to be sure 1953 $self->deactivate_recursive; # just to be sure
1906 unless (eval { 1954 unless (eval {
1907 prepare_random_map $exit 1955 $self->goto ($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 1956
1913 1; 1957 1;
1914 }) { 1958 }) {
1915 $self->message ("Something went wrong deep within the crossfire server. " 1959 $self->message ("Something went wrong deep within the crossfire server. "
1916 . "I'll try to bring you back to the map you were before. " 1960 . "I'll try to bring you back to the map you were before. "
… …
1977 # get handled first 2021 # get handled first
1978 my $queue = delete $ns->{query_queue} 2022 my $queue = delete $ns->{query_queue}
1979 or return; # be conservative, not sure how that can happen, but we saw a crash here 2023 or return; # be conservative, not sure how that can happen, but we saw a crash here
1980 2024
1981 (shift @$queue)->[1]->($msg); 2025 (shift @$queue)->[1]->($msg);
2026 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1982 2027
1983 push @{ $ns->{query_queue} }, @$queue; 2028 push @{ $ns->{query_queue} }, @$queue;
1984 2029
1985 if (@{ $ns->{query_queue} } == @$queue) { 2030 if (@{ $ns->{query_queue} } == @$queue) {
1986 if (@$queue) { 2031 if (@$queue) {
… …
2147The parameter C<$family> should best start with the name of the extension 2192The parameter C<$family> should best start with the name of the extension
2148using it, it should be unique. 2193using it, it should be unique.
2149 2194
2150=over 4 2195=over 4
2151 2196
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 2197=item $value = cf::db_get $family => $key
2159 2198
2160Returns a single value from the database 2199Returns 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 2200
2167=item cf::db_put $family => $key => $value 2201=item cf::db_put $family => $key => $value
2168 2202
2169Stores the given C<$value> in the family hash. Updates are delayed, if you 2203Stores 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 2204
2180=cut 2205=cut
2181 2206
2182our $DB; 2207our $DB;
2183 2208
2184{ 2209sub db_init {
2210 unless ($DB) {
2211 $DB = BDB::db_create $DB_ENV;
2212
2213 cf::sync_job {
2214 eval {
2215 $DB->set_flags (BDB::CHKSUM);
2216
2217 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2218 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2219 cf::cleanup "db_open(db): $!" if $!;
2220 };
2221 cf::cleanup "db_open(db): $@" if $@;
2222 };
2223
2185 my $path = cf::localdir . "/database.pst"; 2224 my $path = cf::localdir . "/database.pst";
2225 if (stat $path) {
2226 cf::sync_job {
2227 my $pst = Storable::retrieve $path;
2186 2228
2187 sub db_load() { 2229 cf::db_put (board => data => $pst->{board});
2188 $DB = stat $path ? Storable::retrieve $path : { }; 2230 cf::db_put (guildrules => data => $pst->{guildrules});
2189 } 2231 cf::db_put (rent => balance => $pst->{rent}{balance});
2232 BDB::db_env_txn_checkpoint $DB_ENV;
2190 2233
2191 my $pid; 2234 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 } 2235 };
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($$;$) {
2226 if (@_ >= 3) {
2227 $DB->{$_[0]}{$_[1]} = $_[2];
2228 } else {
2229 $DB->{$_[0]} = $_[1];
2230 }
2231 db_dirty;
2232 }
2233
2234 cf::global->attach (
2235 prio => 10000,
2236 on_cleanup => sub {
2237 db_sync;
2238 }, 2236 }
2239 ); 2237 }
2238}
2239
2240sub db_get($$) {
2241 my $key = "$_[0]/$_[1]";
2242
2243 cf::sync_job {
2244 BDB::db_get $DB, undef, $key, my $data;
2245
2246 $! ? ()
2247 : Compress::LZF::sthaw $data
2248 }
2249}
2250
2251sub db_put($$$) {
2252 BDB::dbreq_pri 4;
2253 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2240} 2254}
2241 2255
2242############################################################################# 2256#############################################################################
2243# the server's main() 2257# the server's init and main functions
2258
2259sub load_resources {
2260 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2261 or die "unable to load regions file\n";#d#
2262}
2244 2263
2245sub cfg_load { 2264sub cfg_load {
2246 open my $fh, "<:utf8", cf::confdir . "/config" 2265 open my $fh, "<:utf8", cf::confdir . "/config"
2247 or return; 2266 or return;
2248 2267
… …
2259 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2278 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2260 and die "WARNING: m(un)lockall failed: $!\n"; 2279 and die "WARNING: m(un)lockall failed: $!\n";
2261 }; 2280 };
2262 warn $@ if $@; 2281 warn $@ if $@;
2263 } 2282 }
2283}
2284
2285sub init {
2286 load_resources;
2264} 2287}
2265 2288
2266sub main { 2289sub main {
2267 # we must not ever block the main coroutine 2290 # we must not ever block the main coroutine
2268 local $Coro::idle = sub { 2291 local $Coro::idle = sub {
… …
2271 Event::one_event; 2294 Event::one_event;
2272 })->prio (Coro::PRIO_MAX); 2295 })->prio (Coro::PRIO_MAX);
2273 }; 2296 };
2274 2297
2275 cfg_load; 2298 cfg_load;
2276 db_load; 2299 db_init;
2277 load_extensions; 2300 load_extensions;
2278 2301
2279 $TICK_WATCHER->start; 2302 $TICK_WATCHER->start;
2280 Event::loop; 2303 Event::loop;
2281} 2304}
… …
2285 2308
2286# install some emergency cleanup handlers 2309# install some emergency cleanup handlers
2287BEGIN { 2310BEGIN {
2288 for my $signal (qw(INT HUP TERM)) { 2311 for my $signal (qw(INT HUP TERM)) {
2289 Event->signal ( 2312 Event->signal (
2313 reentrant => 0,
2290 data => WF_AUTOCANCEL, 2314 data => WF_AUTOCANCEL,
2291 signal => $signal, 2315 signal => $signal,
2316 prio => 0,
2292 cb => sub { 2317 cb => sub {
2293 cf::cleanup "SIG$signal"; 2318 cf::cleanup "SIG$signal";
2294 }, 2319 },
2295 ); 2320 );
2296 } 2321 }
2297} 2322}
… …
2318 my $map = $cf::MAP{$path} or next; 2343 my $map = $cf::MAP{$path} or next;
2319 $map->valid or next; 2344 $map->valid or next;
2320 $map->save; 2345 $map->save;
2321 } 2346 }
2322 warn "end emergency map save\n"; 2347 warn "end emergency map save\n";
2348
2349 warn "begin emergency database checkpoint\n";
2350 BDB::db_env_txn_checkpoint $DB_ENV;
2351 warn "end emergency database checkpoint\n";
2323 }; 2352 };
2324 2353
2325 warn "leave emergency perl save\n"; 2354 warn "leave emergency perl save\n";
2355}
2356
2357sub post_cleanup {
2358 my ($make_core) = @_;
2359
2360 warn Carp::longmess "post_cleanup backtrace"
2361 if $make_core;
2326} 2362}
2327 2363
2328sub reload() { 2364sub reload() {
2329 # can/must only be called in main 2365 # can/must only be called in main
2330 if ($Coro::current != $Coro::main) { 2366 if ($Coro::current != $Coro::main) {
… …
2332 return; 2368 return;
2333 } 2369 }
2334 2370
2335 warn "reloading..."; 2371 warn "reloading...";
2336 2372
2337 warn "cancelling server ticker"; 2373 warn "entering sync_job";
2338 $TICK_WATCHER->cancel;
2339 2374
2375 cf::sync_job {
2376 cf::write_runtime; # external watchdog should not bark
2340 cf::emergency_save; 2377 cf::emergency_save;
2378 cf::write_runtime; # external watchdog should not bark
2341 2379
2342 eval { 2380 warn "syncing database to disk";
2381 BDB::db_env_txn_checkpoint $DB_ENV;
2382
2343 # if anything goes wrong in here, we should simply crash as we already saved 2383 # if anything goes wrong in here, we should simply crash as we already saved
2344
2345 warn "syncing database to disk";
2346 cf::db_sync;
2347 2384
2348 warn "cancelling all WF_AUTOCANCEL watchers"; 2385 warn "cancelling all WF_AUTOCANCEL watchers";
2349 for (Event::all_watchers) { 2386 for (Event::all_watchers) {
2350 $_->cancel if $_->data & WF_AUTOCANCEL; 2387 $_->cancel if $_->data & WF_AUTOCANCEL;
2351 } 2388 }
2352 2389
2353 warn "flushing outstanding aio requests"; 2390 warn "flushing outstanding aio requests";
2354 for (;;) { 2391 for (;;) {
2392 BDB::flush;
2355 IO::AIO::flush; 2393 IO::AIO::flush;
2356 Coro::cede; 2394 Coro::cede;
2357 last unless IO::AIO::nreqs; 2395 last unless IO::AIO::nreqs || BDB::nreqs;
2358 warn "iterate..."; 2396 warn "iterate...";
2359 } 2397 }
2360 2398
2361 warn "cancelling all extension coros"; 2399 warn "cancelling all extension coros";
2362 $_->cancel for values %EXT_CORO; 2400 $_->cancel for values %EXT_CORO;
… …
2417 require cf; 2455 require cf;
2418 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2456 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2419 2457
2420 warn "loading config and database again"; 2458 warn "loading config and database again";
2421 cf::cfg_load; 2459 cf::cfg_load;
2422 cf::db_load;
2423 2460
2424 warn "loading extensions"; 2461 warn "loading extensions";
2425 cf::load_extensions; 2462 cf::load_extensions;
2426 2463
2427 warn "reattaching attachments to objects/players"; 2464 warn "reattaching attachments to objects/players";
2428 _global_reattach; 2465 _global_reattach;
2429 warn "reattaching attachments to maps"; 2466 warn "reattaching attachments to maps";
2430 reattach $_ for values %MAP; 2467 reattach $_ for values %MAP;
2431 2468
2432 warn "restarting server ticker"; 2469 warn "loading reloadable resources";
2470 load_resources;
2433 2471
2434 $TICK_WATCHER->start; 2472 warn "leaving sync_job";
2435 };
2436 2473
2437 if ($@) { 2474 1
2475 } or do {
2438 warn $@; 2476 warn $@;
2439 warn "error while reloading, exiting."; 2477 warn "error while reloading, exiting.";
2440 exit 1; 2478 exit 1;
2441 } 2479 };
2442 2480
2443 warn "reloaded"; 2481 warn "reloaded";
2444}; 2482};
2445 2483
2446our $RELOAD_WATCHER; # used only during reload 2484our $RELOAD_WATCHER; # used only during reload
… …
2452 $who->message ("reloading server."); 2490 $who->message ("reloading server.");
2453 2491
2454 # doing reload synchronously and two reloads happen back-to-back, 2492 # doing reload synchronously and two reloads happen back-to-back,
2455 # coro crashes during coro_state_free->destroy here. 2493 # coro crashes during coro_state_free->destroy here.
2456 2494
2457 $RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub { 2495 $RELOAD_WATCHER ||= Event->timer (
2496 reentrant => 0,
2497 after => 0,
2498 data => WF_AUTOCANCEL,
2499 cb => sub {
2458 reload; 2500 reload;
2459 undef $RELOAD_WATCHER; 2501 undef $RELOAD_WATCHER;
2502 },
2460 }); 2503 );
2461 } 2504 }
2462}; 2505};
2463 2506
2464unshift @INC, $LIBDIR; 2507unshift @INC, $LIBDIR;
2465 2508
… …
2482 2525
2483 cf::server_tick; # one server iteration 2526 cf::server_tick; # one server iteration
2484 $RUNTIME += $TICK; 2527 $RUNTIME += $TICK;
2485 $NEXT_TICK += $TICK; 2528 $NEXT_TICK += $TICK;
2486 2529
2530 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2531 $NEXT_RUNTIME_WRITE = $NOW + 10;
2532 Coro::async_pool {
2533 write_runtime
2534 or warn "ERROR: unable to write runtime file: $!";
2535 };
2536 }
2537
2538
2487 $WAIT_FOR_TICK->broadcast; 2539 $WAIT_FOR_TICK->broadcast;
2488 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2540 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2541
2542# my $AFTER = Event::time;
2543# warn $AFTER - $NOW;#d#
2489 2544
2490 # if we are delayed by four ticks or more, skip them all 2545 # if we are delayed by four ticks or more, skip them all
2491 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2546 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2492 2547
2493 $TICK_WATCHER->at ($NEXT_TICK); 2548 $TICK_WATCHER->at ($NEXT_TICK);
2494 $TICK_WATCHER->start; 2549 $TICK_WATCHER->start;
2495 }, 2550 },
2496); 2551);
2497 2552
2553{
2554 BDB::max_poll_time $TICK * 0.1;
2555 $BDB_POLL_WATCHER = Event->io (
2556 reentrant => 0,
2557 fd => BDB::poll_fileno,
2558 poll => 'r',
2559 prio => 0,
2560 data => WF_AUTOCANCEL,
2561 cb => \&BDB::poll_cb,
2562 );
2563 BDB::min_parallel 8;
2564
2565 BDB::set_sync_prepare {
2566 my $status;
2567 my $current = $Coro::current;
2568 (
2569 sub {
2570 $status = $!;
2571 $current->ready; undef $current;
2572 },
2573 sub {
2574 Coro::schedule while defined $current;
2575 $! = $status;
2576 },
2577 )
2578 };
2579
2580 unless ($DB_ENV) {
2581 $DB_ENV = BDB::db_env_create;
2582
2583 cf::sync_job {
2584 eval {
2585 BDB::db_env_open
2586 $DB_ENV,
2587 $BDB_ENV_DIR,
2588 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2589 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2590 0666;
2591
2592 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2593
2594 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2595 $DB_ENV->set_lk_detect;
2596 };
2597
2598 cf::cleanup "db_env_open(db): $@" if $@;
2599 };
2600 }
2601}
2602
2603{
2604 IO::AIO::min_parallel 8;
2605
2606 undef $Coro::AIO::WATCHER;
2498IO::AIO::max_poll_time $TICK * 0.2; 2607 IO::AIO::max_poll_time $TICK * 0.1;
2499
2500$AIO_POLL_WATCHER = Event->io ( 2608 $AIO_POLL_WATCHER = Event->io (
2501 fd => IO::AIO::poll_fileno, 2609 reentrant => 0,
2502 poll => 'r',
2503 prio => 5,
2504 data => WF_AUTOCANCEL,
2505 cb => \&IO::AIO::poll_cb,
2506);
2507
2508$WRITE_RUNTIME_WATCHER = Event->timer (
2509 data => WF_AUTOCANCEL, 2610 data => WF_AUTOCANCEL,
2510 after => 1, 2611 fd => IO::AIO::poll_fileno,
2511 interval => 10, 2612 poll => 'r',
2512 prio => 6, # keep it lowest so it acts like a watchdog 2613 prio => 6,
2513 cb => Coro::unblock_sub { 2614 cb => \&IO::AIO::poll_cb,
2514 write_runtime 2615 );
2515 or warn "ERROR: unable to write runtime file: $!"; 2616}
2516 },
2517);
2518 2617
2519END { cf::emergency_save } 2618END { cf::emergency_save }
2520 2619
25211 26201
2522 2621

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