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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.185 by root, Fri Jan 19 23:32:52 2007 UTC vs.
Revision 1.215 by root, Thu Feb 15 03:19:02 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 }
… …
349 my $runtime = cf::localdir . "/runtime"; 359 my $runtime = cf::localdir . "/runtime";
350 360
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 361 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 362 or return;
353 363
364 my $value = $cf::RUNTIME + 90 + 10;
354 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 365 # 10 is the runtime save interval, for a monotonic clock
366 # 60 allows for the watchdog to kill the server.
367
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 369 and return;
357 370
371 # always fsync - this file is important
358 aio_fsync $fh 372 aio_fsync $fh
359 and return; 373 and return;
360 374
361 close $fh 375 close $fh
362 or return; 376 or return;
… …
747 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
748 762
749 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
751 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
753 close $fh; 767 close $fh;
754 768
755 if (@$objs) { 769 if (@$objs) {
756 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) {
757 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
758 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
759 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
760 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
761 close $fh; 775 close $fh;
762 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
763 } 777 }
764 } else { 778 } else {
765 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
… …
771 } 785 }
772 } else { 786 } else {
773 aio_unlink $filename; 787 aio_unlink $filename;
774 aio_unlink "$filename.pst"; 788 aio_unlink "$filename.pst";
775 } 789 }
790
791 #d##TODO# nuke non .map-files if exist
792 if ($filename =~ s/\.map$//) {
793 aio_unlink $filename;
794 aio_unlink "$filename.pst";
795 }
776 } 796 }
777} 797}
778 798
779sub object_freezer_as_string { 799sub object_freezer_as_string {
780 my ($rdata, $objs) = @_; 800 my ($rdata, $objs) = @_;
… …
786 806
787sub object_thawer_load { 807sub object_thawer_load {
788 my ($filename) = @_; 808 my ($filename) = @_;
789 809
790 my ($data, $av); 810 my ($data, $av);
811
812 #d#TODO remove .map if file does not exist
813 aio_stat $filename and $filename =~ s/\.map$//;
791 814
792 (aio_load $filename, $data) >= 0 815 (aio_load $filename, $data) >= 0
793 or return; 816 or return;
794 817
795 unless (aio_stat "$filename.pst") { 818 unless (aio_stat "$filename.pst") {
… …
1065=cut 1088=cut
1066 1089
1067sub maps($) { 1090sub maps($) {
1068 my ($pl) = @_; 1091 my ($pl) = @_;
1069 1092
1093 $pl = ref $pl ? $pl->ob->name : $pl;
1094
1070 my $files = aio_readdir playerdir $pl 1095 my $files = aio_readdir playerdir $pl
1071 or return; 1096 or return;
1072 1097
1073 my @paths; 1098 my @paths;
1074 1099
1075 for (@$files) { 1100 for (@$files) {
1076 utf8::decode $_; 1101 utf8::decode $_;
1077 next if /\.(?:pl|pst)$/; 1102 next if /\.(?:pl|pst)$/;
1078 next unless /^$PATH_SEP/o; 1103 next unless /^$PATH_SEP/o;
1079 1104
1080 s/\.map$//; 1105 push @paths, cf::map::normalise "~$pl/$_";
1081 push @paths, "~" . $pl->ob->name . "/" . $_;
1082 } 1106 }
1083 1107
1084 \@paths 1108 \@paths
1085} 1109}
1086 1110
… …
1137 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1161 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138 (cf::region::find $rmp->{region}), $rmp->{custom} 1162 (cf::region::find $rmp->{region}), $rmp->{custom}
1139 ) 1163 )
1140} 1164}
1141 1165
1166=item cf::map->register ($regex, $prio)
1167
1168Register a handler for the map path matching the given regex at the
1169givne priority (higher is better, built-in handlers have priority 0, the
1170default).
1171
1172=cut
1173
1142sub register { 1174sub register {
1143 my (undef, $regex) = @_; 1175 my (undef, $regex, $prio) = @_;
1144 my $pkg = caller; 1176 my $pkg = caller;
1145 1177
1146 no strict; 1178 no strict;
1147 push @{"$pkg\::ISA"}, __PACKAGE__; 1179 push @{"$pkg\::ISA"}, __PACKAGE__;
1148 1180
1149 $EXT_MAP{$pkg} = qr<$regex>; 1181 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150} 1182}
1151 1183
1152# also paths starting with '/' 1184# also paths starting with '/'
1153$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1185$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154 1186
1155sub thawer_merge { 1187sub thawer_merge {
1156 my ($self, $merge) = @_; 1188 my ($self, $merge) = @_;
1157 1189
1158 # we have to keep some variables in memory intact 1190 # we have to keep some variables in memory intact
… …
1164 $self->SUPER::thawer_merge ($merge); 1196 $self->SUPER::thawer_merge ($merge);
1165} 1197}
1166 1198
1167sub normalise { 1199sub normalise {
1168 my ($path, $base) = @_; 1200 my ($path, $base) = @_;
1201
1202 $path = "$path"; # make sure its a string
1203
1204 $path =~ s/\.map$//;
1169 1205
1170 # map plan: 1206 # map plan:
1171 # 1207 #
1172 # /! non-realised random map exit (special hack!) 1208 # /! non-realised random map exit (special hack!)
1173 # {... are special paths that are not being touched 1209 # {... are special paths that are not being touched
… …
1201 1237
1202 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1238 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203 1239
1204 $path = normalise $path, $base; 1240 $path = normalise $path, $base;
1205 1241
1206 for my $pkg (keys %EXT_MAP) { 1242 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207 if ($path =~ $EXT_MAP{$pkg}) { 1243 if ($path =~ $EXT_MAP{$pkg}[1]) {
1208 my $self = bless cf::map::new, $pkg; 1244 my $self = bless cf::map::new, $pkg;
1209 $self->{path} = $path; $self->path ($path); 1245 $self->{path} = $path; $self->path ($path);
1210 $self->init; # pass $1 etc. 1246 $self->init; # pass $1 etc.
1211 return $self; 1247 return $self;
1212 } 1248 }
1213 } 1249 }
1214 1250
1215 Carp::carp "unable to resolve path '$path'."; 1251 Carp::carp "unable to resolve path '$path' (base '$base').";
1216 () 1252 ()
1217} 1253}
1218 1254
1219sub init { 1255sub init {
1220 my ($self) = @_; 1256 my ($self) = @_;
… …
1235 1271
1236# the original (read-only) location 1272# the original (read-only) location
1237sub load_path { 1273sub load_path {
1238 my ($self) = @_; 1274 my ($self) = @_;
1239 1275
1240 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1276 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1241} 1277}
1242 1278
1243# the temporary/swap location 1279# the temporary/swap location
1244sub save_path { 1280sub save_path {
1245 my ($self) = @_; 1281 my ($self) = @_;
1246 1282
1247 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1283 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1284 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1249} 1285}
1250 1286
1251# the unique path, undef == no special unique path 1287# the unique path, undef == no special unique path
1252sub uniq_path { 1288sub uniq_path {
1253 my ($self) = @_; 1289 my ($self) = @_;
… …
1269 my ($self) = @_; 1305 my ($self) = @_;
1270 1306
1271 utf8::encode (my $save = $self->save_path); 1307 utf8::encode (my $save = $self->save_path);
1272 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1308 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1273 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$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#
1274} 1315}
1275 1316
1276sub load_header_from($) { 1317sub load_header_from($) {
1277 my ($self, $path) = @_; 1318 my ($self, $path) = @_;
1278 1319
1279 utf8::encode $path; 1320 utf8::encode $path;
1280 aio_open $path, O_RDONLY, 0 1321 #aio_open $path, O_RDONLY, 0
1281 or return; 1322 # or return;
1282 1323
1283 $self->_load_header ($path) 1324 $self->_load_header ($path)
1284 or return; 1325 or return;
1285 1326
1286 $self->{load_path} = $path; 1327 $self->{load_path} = $path;
1287 1328
1288 1 1329 1
1289} 1330}
1290 1331
1291sub load_orig { 1332sub load_header_orig {
1292 my ($self) = @_; 1333 my ($self) = @_;
1293 1334
1294 $self->load_header_from ($self->load_path) 1335 $self->load_header_from ($self->load_path)
1295} 1336}
1296 1337
1297sub load_temp { 1338sub load_header_temp {
1298 my ($self) = @_; 1339 my ($self) = @_;
1299 1340
1300 $self->load_header_from ($self->save_path) 1341 $self->load_header_from ($self->save_path)
1342}
1343
1344sub prepare_temp {
1345 my ($self) = @_;
1346
1347 $self->last_access ((delete $self->{last_access})
1348 || $cf::RUNTIME); #d#
1349 # safety
1350 $self->{instantiate_time} = $cf::RUNTIME
1351 if $self->{instantiate_time} > $cf::RUNTIME;
1352}
1353
1354sub prepare_orig {
1355 my ($self) = @_;
1356
1357 $self->{load_original} = 1;
1358 $self->{instantiate_time} = $cf::RUNTIME;
1359 $self->last_access ($cf::RUNTIME);
1360 $self->instantiate;
1301} 1361}
1302 1362
1303sub load_header { 1363sub load_header {
1304 my ($self) = @_; 1364 my ($self) = @_;
1305 1365
1306 if ($self->load_temp) { 1366 if ($self->load_header_temp) {
1307 $self->last_access ((delete $self->{last_access}) 1367 $self->prepare_temp;
1308 || $cf::RUNTIME); #d#
1309 # safety
1310 $self->{instantiate_time} = $cf::RUNTIME
1311 if $self->{instantiate_time} > $cf::RUNTIME;
1312 } else { 1368 } else {
1313 $self->load_orig 1369 $self->load_header_orig
1314 or return; 1370 or return;
1315 1371 $self->prepare_orig;
1316 $self->{load_original} = 1;
1317 $self->{instantiate_time} = $cf::RUNTIME;
1318 $self->last_access ($cf::RUNTIME);
1319 $self->instantiate;
1320 } 1372 }
1321 1373
1322 1 1374 1
1323} 1375}
1324 1376
… …
1338 $map->{last_save} = $cf::RUNTIME; 1390 $map->{last_save} = $cf::RUNTIME;
1339 1391
1340 $map->load_header 1392 $map->load_header
1341 or return; 1393 or return;
1342 1394
1343 if ($map->should_reset) { 1395 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1344 # doing this can freeze the server in a sync job, obviously 1396 # doing this can freeze the server in a sync job, obviously
1345 #$cf::WAIT_FOR_TICK->wait; 1397 #$cf::WAIT_FOR_TICK->wait;
1346 $map->reset; 1398 $map->reset;
1347 undef $guard; 1399 undef $guard;
1348 $map = find $path 1400 return find $path;
1349 or return;
1350 } 1401 }
1351 1402
1352 $cf::MAP{$path} = $map 1403 $cf::MAP{$path} = $map
1353 } 1404 }
1354} 1405}
1406
1407sub pre_load { }
1408sub post_load { }
1355 1409
1356sub load { 1410sub load {
1357 my ($self) = @_; 1411 my ($self) = @_;
1358 1412
1413 local $self->{deny_reset} = 1; # loading can take a long time
1414
1359 my $path = $self->{path}; 1415 my $path = $self->{path};
1360 my $guard = cf::lock_acquire "map_load:$path"; 1416 my $guard = cf::lock_acquire "map_load:$path";
1361 1417
1362 return if $self->in_memory != cf::MAP_SWAPPED; 1418 return if $self->in_memory != cf::MAP_SWAPPED;
1363 1419
1364 $self->in_memory (cf::MAP_LOADING); 1420 $self->in_memory (cf::MAP_LOADING);
1365 1421
1366 $self->alloc; 1422 $self->alloc;
1423
1424 $self->pre_load;
1425
1367 $self->_load_objects ($self->{load_path}, 1) 1426 $self->_load_objects ($self->{load_path}, 1)
1368 or return; 1427 or return;
1369 1428
1370 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1429 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1371 if delete $self->{load_original}; 1430 if delete $self->{load_original};
… …
1393 unless $self->difficulty; 1452 unless $self->difficulty;
1394 Coro::cede; 1453 Coro::cede;
1395 $self->activate; 1454 $self->activate;
1396 } 1455 }
1397 1456
1457 $self->post_load;
1458
1398 $self->in_memory (cf::MAP_IN_MEMORY); 1459 $self->in_memory (cf::MAP_IN_MEMORY);
1399} 1460}
1400 1461
1401sub customise_for { 1462sub customise_for {
1402 my ($self, $ob) = @_; 1463 my ($self, $ob) = @_;
… …
1466 delete $MAP_PREFETCH{$path}; 1527 delete $MAP_PREFETCH{$path};
1467 } 1528 }
1468 } 1529 }
1469 undef $MAP_PREFETCHER; 1530 undef $MAP_PREFETCHER;
1470 }; 1531 };
1532 $MAP_PREFETCHER->prio (6);
1471 1533
1472 () 1534 ()
1473} 1535}
1474 1536
1475sub save { 1537sub save {
… …
1545 return if $self->players; 1607 return if $self->players;
1546 return if $self->isa ("ext::map_per_player");#d# 1608 return if $self->isa ("ext::map_per_player");#d#
1547 1609
1548 warn "resetting map ", $self->path;#d# 1610 warn "resetting map ", $self->path;#d#
1549 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
1550 delete $cf::MAP{$self->path}; 1622 delete $cf::MAP{$self->path};
1551 1623
1552 $self->in_memory (cf::MAP_SWAPPED);
1553 $self->clear; 1624 $self->clear;
1554 1625
1555 $_->clear_links_to ($self) for values %cf::MAP; 1626 $_->clear_links_to ($self) for values %cf::MAP;
1556 1627
1557 $self->unlink_save; 1628 $self->unlink_save;
… …
1594 for (@$files) { 1665 for (@$files) {
1595 utf8::decode $_; 1666 utf8::decode $_;
1596 next if /\.pst$/; 1667 next if /\.pst$/;
1597 next unless /^$PATH_SEP/o; 1668 next unless /^$PATH_SEP/o;
1598 1669
1599 s/\.map$//; 1670 push @paths, cf::map::normalise $_;
1600 push @paths, $_;
1601 } 1671 }
1602 1672
1603 \@paths 1673 \@paths
1604} 1674}
1605 1675
… …
1699=cut 1769=cut
1700 1770
1701sub link_map { 1771sub link_map {
1702 unless ($LINK_MAP) { 1772 unless ($LINK_MAP) {
1703 $LINK_MAP = cf::map::find "{link}" 1773 $LINK_MAP = cf::map::find "{link}"
1704 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1774 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705 $LINK_MAP->load; 1775 $LINK_MAP->load;
1706 } 1776 }
1707 1777
1708 $LINK_MAP 1778 $LINK_MAP
1709} 1779}
… …
1716 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1786 return if UNIVERSAL::isa $self->map, "ext::map_link";
1717 1787
1718 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1788 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719 if $self->map; 1789 if $self->map;
1720 1790
1721 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1791 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1722} 1792}
1723 1793
1724sub cf::object::player::leave_link { 1794sub cf::object::player::leave_link {
1725 my ($self, $map, $x, $y) = @_; 1795 my ($self, $map, $x, $y) = @_;
1726 1796
… …
1748 $map->load; 1818 $map->load;
1749 $map->load_diag; 1819 $map->load_diag;
1750 1820
1751 return unless $self->contr->active; 1821 return unless $self->contr->active;
1752 $self->activate_recursive; 1822 $self->activate_recursive;
1823
1824 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1754} 1826}
1755 1827
1756cf::player->attach ( 1828cf::player->attach (
1757 on_logout => sub { 1829 on_logout => sub {
… …
1770 # try to abort aborted map switching on player login :) 1842 # try to abort aborted map switching on player login :)
1771 # should happen only on crashes 1843 # should happen only on crashes
1772 if ($pl->ob->{_link_pos}) { 1844 if ($pl->ob->{_link_pos}) {
1773 $pl->ob->enter_link; 1845 $pl->ob->enter_link;
1774 (async { 1846 (async {
1775 # we need this sleep as the login has a concurrent enter_exit running
1776 # and this sleep increases chances of the player not ending up in scorn
1777 $pl->ob->reply (undef, 1847 $pl->ob->reply (undef,
1778 "There was an internal problem at your last logout, " 1848 "There was an internal problem at your last logout, "
1779 . "the server will try to bring you to your intended destination in a second.", 1849 . "the server will try to bring you to your intended destination in a second.",
1780 cf::NDI_RED); 1850 cf::NDI_RED);
1851 # we need this sleep as the login has a concurrent enter_exit running
1852 # and this sleep increases chances of the player not ending up in scorn
1781 Coro::Timer::sleep 1; 1853 Coro::Timer::sleep 1;
1782 $pl->ob->leave_link; 1854 $pl->ob->leave_link;
1783 })->prio (2); 1855 })->prio (2);
1784 } 1856 }
1785 }, 1857 },
… …
1793 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1794 1866
1795 $self->enter_link; 1867 $self->enter_link;
1796 1868
1797 (async { 1869 (async {
1870 my $map = eval {
1798 my $map = cf::map::find $path; 1871 my $map = cf::map::find $path;
1799 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1800 1873 $map
1801# warn "entering ", $map->path, " at ($x, $y)\n" 1874 } or
1802# if $map;
1803
1804 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1875 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1805 1876
1806 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1807 })->prio (1); 1878 })->prio (1);
1808} 1879}
1809 1880
… …
1840 # that depends on the exit object 1911 # that depends on the exit object
1841 1912
1842 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1843 1914
1844 if ($exit->map) { 1915 if ($exit->map) {
1845 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1846 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1847 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1848 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1849 } 1920 }
1850 1921
… …
1867sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1868 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1869 1940
1870 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1871 1942
1943 if ($exit->slaying eq "/!") {
1944 #TODO: this should de-fi-ni-te-ly not be a sync-job
1945 cf::sync_job { prepare_random_map $exit };
1946 }
1947
1948 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949 my $hp = $exit->stats->hp;
1950 my $sp = $exit->stats->sp;
1951
1872 $self->enter_link; 1952 $self->enter_link;
1873 1953
1874 (async { 1954 (async {
1875 $self->deactivate_recursive; # just to be sure 1955 $self->deactivate_recursive; # just to be sure
1876 unless (eval { 1956 unless (eval {
1877 prepare_random_map $exit 1957 $self->goto ($slaying, $hp, $sp);
1878 if $exit->slaying eq "/!";
1879
1880 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1881 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1882 1958
1883 1; 1959 1;
1884 }) { 1960 }) {
1885 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1886 . "I'll try to bring you back to the map you were before. " 1962 . "I'll try to bring you back to the map you were before. "
… …
1947 # get handled first 2023 # get handled first
1948 my $queue = delete $ns->{query_queue} 2024 my $queue = delete $ns->{query_queue}
1949 or return; # be conservative, not sure how that can happen, but we saw a crash here 2025 or return; # be conservative, not sure how that can happen, but we saw a crash here
1950 2026
1951 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1952 2029
1953 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1954 2031
1955 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1956 if (@$queue) { 2033 if (@$queue) {
… …
2117The parameter C<$family> should best start with the name of the extension 2194The parameter C<$family> should best start with the name of the extension
2118using it, it should be unique. 2195using it, it should be unique.
2119 2196
2120=over 4 2197=over 4
2121 2198
2122=item $hashref = cf::db_get $family
2123
2124Return a hashref for use by the extension C<$family>, which can be
2125modified. After modifications, you have to call C<cf::db_dirty> or
2126C<cf::db_sync>.
2127
2128=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
2129 2200
2130Returns a single value from the database 2201Returns a single value from the database.
2131
2132=item cf::db_put $family => $hashref
2133
2134Stores the given family hashref into the database. Updates are delayed, if
2135you want the data to be synced to disk immediately, use C<cf::db_sync>.
2136 2202
2137=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
2138 2204
2139Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
2140want the data to be synced to disk immediately, use C<cf::db_sync>.
2141
2142=item cf::db_dirty
2143
2144Marks the database as dirty, to be updated at a later time.
2145
2146=item cf::db_sync
2147
2148Immediately write the database to disk I<if it is dirty>.
2149 2206
2150=cut 2207=cut
2151 2208
2152our $DB; 2209our $DB;
2153 2210
2154{ 2211sub db_init {
2212 unless ($DB) {
2213 $DB = BDB::db_create $DB_ENV;
2214
2215 cf::sync_job {
2216 eval {
2217 $DB->set_flags (BDB::CHKSUM);
2218
2219 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221 cf::cleanup "db_open(db): $!" if $!;
2222 };
2223 cf::cleanup "db_open(db): $@" if $@;
2224 };
2225
2155 my $path = cf::localdir . "/database.pst"; 2226 my $path = cf::localdir . "/database.pst";
2227 if (stat $path) {
2228 cf::sync_job {
2229 my $pst = Storable::retrieve $path;
2156 2230
2157 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
2158 $DB = stat $path ? Storable::retrieve $path : { }; 2232 cf::db_put (guildrules => data => $pst->{guildrules});
2159 } 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
2160 2235
2161 my $pid; 2236 unlink $path;
2162
2163 sub db_save() {
2164 waitpid $pid, 0 if $pid;
2165 if (0 == ($pid = fork)) {
2166 $DB->{_meta}{version} = 1;
2167 Storable::nstore $DB, "$path~";
2168 rename "$path~", $path;
2169 cf::_exit 0 if defined $pid;
2170 } 2237 };
2171 }
2172
2173 my $dirty;
2174
2175 sub db_sync() {
2176 db_save if $dirty;
2177 undef $dirty;
2178 }
2179
2180 my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2181 db_sync;
2182 });
2183
2184 sub db_dirty() {
2185 $dirty = 1;
2186 $idle->start;
2187 }
2188
2189 sub db_get($;$) {
2190 @_ >= 2
2191 ? $DB->{$_[0]}{$_[1]}
2192 : ($DB->{$_[0]} ||= { })
2193 }
2194
2195 sub db_put($$;$) {
2196 if (@_ >= 3) {
2197 $DB->{$_[0]}{$_[1]} = $_[2];
2198 } else {
2199 $DB->{$_[0]} = $_[1];
2200 }
2201 db_dirty;
2202 }
2203
2204 cf::global->attach (
2205 prio => 10000,
2206 on_cleanup => sub {
2207 db_sync;
2208 }, 2238 }
2209 ); 2239 }
2240}
2241
2242sub db_get($$) {
2243 my $key = "$_[0]/$_[1]";
2244
2245 cf::sync_job {
2246 BDB::db_get $DB, undef, $key, my $data;
2247
2248 $! ? ()
2249 : Compress::LZF::sthaw $data
2250 }
2251}
2252
2253sub db_put($$$) {
2254 BDB::dbreq_pri 4;
2255 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2210} 2256}
2211 2257
2212############################################################################# 2258#############################################################################
2213# the server's main() 2259# the server's init and main functions
2260
2261sub load_resources {
2262 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2263 or die "unable to load regions file\n";#d#
2264}
2214 2265
2215sub cfg_load { 2266sub cfg_load {
2216 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
2217 or return; 2268 or return;
2218 2269
… …
2229 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2280 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2230 and die "WARNING: m(un)lockall failed: $!\n"; 2281 and die "WARNING: m(un)lockall failed: $!\n";
2231 }; 2282 };
2232 warn $@ if $@; 2283 warn $@ if $@;
2233 } 2284 }
2285}
2286
2287sub init {
2288 load_resources;
2234} 2289}
2235 2290
2236sub main { 2291sub main {
2237 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
2238 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
… …
2241 Event::one_event; 2296 Event::one_event;
2242 })->prio (Coro::PRIO_MAX); 2297 })->prio (Coro::PRIO_MAX);
2243 }; 2298 };
2244 2299
2245 cfg_load; 2300 cfg_load;
2246 db_load; 2301 db_init;
2247 load_extensions; 2302 load_extensions;
2248 2303
2249 $TICK_WATCHER->start; 2304 $TICK_WATCHER->start;
2250 Event::loop; 2305 Event::loop;
2251} 2306}
… …
2255 2310
2256# install some emergency cleanup handlers 2311# install some emergency cleanup handlers
2257BEGIN { 2312BEGIN {
2258 for my $signal (qw(INT HUP TERM)) { 2313 for my $signal (qw(INT HUP TERM)) {
2259 Event->signal ( 2314 Event->signal (
2315 reentrant => 0,
2260 data => WF_AUTOCANCEL, 2316 data => WF_AUTOCANCEL,
2261 signal => $signal, 2317 signal => $signal,
2318 prio => 0,
2262 cb => sub { 2319 cb => sub {
2263 cf::cleanup "SIG$signal"; 2320 cf::cleanup "SIG$signal";
2264 }, 2321 },
2265 ); 2322 );
2266 } 2323 }
2267} 2324}
… …
2288 my $map = $cf::MAP{$path} or next; 2345 my $map = $cf::MAP{$path} or next;
2289 $map->valid or next; 2346 $map->valid or next;
2290 $map->save; 2347 $map->save;
2291 } 2348 }
2292 warn "end emergency map save\n"; 2349 warn "end emergency map save\n";
2350
2351 warn "begin emergency database checkpoint\n";
2352 BDB::db_env_txn_checkpoint $DB_ENV;
2353 warn "end emergency database checkpoint\n";
2293 }; 2354 };
2294 2355
2295 warn "leave emergency perl save\n"; 2356 warn "leave emergency perl save\n";
2357}
2358
2359sub post_cleanup {
2360 my ($make_core) = @_;
2361
2362 warn Carp::longmess "post_cleanup backtrace"
2363 if $make_core;
2296} 2364}
2297 2365
2298sub reload() { 2366sub reload() {
2299 # can/must only be called in main 2367 # can/must only be called in main
2300 if ($Coro::current != $Coro::main) { 2368 if ($Coro::current != $Coro::main) {
… …
2302 return; 2370 return;
2303 } 2371 }
2304 2372
2305 warn "reloading..."; 2373 warn "reloading...";
2306 2374
2307 warn "cancelling server ticker"; 2375 warn "entering sync_job";
2308 $TICK_WATCHER->cancel;
2309 2376
2377 cf::sync_job {
2378 cf::write_runtime; # external watchdog should not bark
2310 cf::emergency_save; 2379 cf::emergency_save;
2380 cf::write_runtime; # external watchdog should not bark
2311 2381
2312 eval { 2382 warn "syncing database to disk";
2383 BDB::db_env_txn_checkpoint $DB_ENV;
2384
2313 # if anything goes wrong in here, we should simply crash as we already saved 2385 # if anything goes wrong in here, we should simply crash as we already saved
2314
2315 warn "syncing database to disk";
2316 cf::db_sync;
2317 2386
2318 warn "cancelling all WF_AUTOCANCEL watchers"; 2387 warn "cancelling all WF_AUTOCANCEL watchers";
2319 for (Event::all_watchers) { 2388 for (Event::all_watchers) {
2320 $_->cancel if $_->data & WF_AUTOCANCEL; 2389 $_->cancel if $_->data & WF_AUTOCANCEL;
2321 } 2390 }
2322 2391
2323 warn "flushing outstanding aio requests"; 2392 warn "flushing outstanding aio requests";
2324 for (;;) { 2393 for (;;) {
2394 BDB::flush;
2325 IO::AIO::flush; 2395 IO::AIO::flush;
2326 Coro::cede; 2396 Coro::cede;
2327 last unless IO::AIO::nreqs; 2397 last unless IO::AIO::nreqs || BDB::nreqs;
2328 warn "iterate..."; 2398 warn "iterate...";
2329 } 2399 }
2330 2400
2331 warn "cancelling all extension coros"; 2401 warn "cancelling all extension coros";
2332 $_->cancel for values %EXT_CORO; 2402 $_->cancel for values %EXT_CORO;
… …
2387 require cf; 2457 require cf;
2388 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2458 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389 2459
2390 warn "loading config and database again"; 2460 warn "loading config and database again";
2391 cf::cfg_load; 2461 cf::cfg_load;
2392 cf::db_load;
2393 2462
2394 warn "loading extensions"; 2463 warn "loading extensions";
2395 cf::load_extensions; 2464 cf::load_extensions;
2396 2465
2397 warn "reattaching attachments to objects/players"; 2466 warn "reattaching attachments to objects/players";
2398 _global_reattach; 2467 _global_reattach;
2399 warn "reattaching attachments to maps"; 2468 warn "reattaching attachments to maps";
2400 reattach $_ for values %MAP; 2469 reattach $_ for values %MAP;
2401 2470
2402 warn "restarting server ticker"; 2471 warn "loading reloadable resources";
2472 load_resources;
2403 2473
2404 $TICK_WATCHER->start; 2474 warn "leaving sync_job";
2405 };
2406 2475
2407 if ($@) { 2476 1
2477 } or do {
2408 warn $@; 2478 warn $@;
2409 warn "error while reloading, exiting."; 2479 warn "error while reloading, exiting.";
2410 exit 1; 2480 exit 1;
2411 } 2481 };
2412 2482
2413 warn "reloaded"; 2483 warn "reloaded";
2414}; 2484};
2415 2485
2416our $RELOAD_WATCHER; # used only during reload 2486our $RELOAD_WATCHER; # used only during reload
… …
2422 $who->message ("reloading server."); 2492 $who->message ("reloading server.");
2423 2493
2424 # doing reload synchronously and two reloads happen back-to-back, 2494 # doing reload synchronously and two reloads happen back-to-back,
2425 # coro crashes during coro_state_free->destroy here. 2495 # coro crashes during coro_state_free->destroy here.
2426 2496
2427 $RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub { 2497 $RELOAD_WATCHER ||= Event->timer (
2498 reentrant => 0,
2499 after => 0,
2500 data => WF_AUTOCANCEL,
2501 cb => sub {
2428 reload; 2502 reload;
2429 undef $RELOAD_WATCHER; 2503 undef $RELOAD_WATCHER;
2504 },
2430 }); 2505 );
2431 } 2506 }
2432}; 2507};
2433 2508
2434unshift @INC, $LIBDIR; 2509unshift @INC, $LIBDIR;
2435 2510
… …
2452 2527
2453 cf::server_tick; # one server iteration 2528 cf::server_tick; # one server iteration
2454 $RUNTIME += $TICK; 2529 $RUNTIME += $TICK;
2455 $NEXT_TICK += $TICK; 2530 $NEXT_TICK += $TICK;
2456 2531
2532 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2533 $NEXT_RUNTIME_WRITE = $NOW + 10;
2534 Coro::async_pool {
2535 write_runtime
2536 or warn "ERROR: unable to write runtime file: $!";
2537 };
2538 }
2539
2540
2457 $WAIT_FOR_TICK->broadcast; 2541 $WAIT_FOR_TICK->broadcast;
2458 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2542 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2543
2544# my $AFTER = Event::time;
2545# warn $AFTER - $NOW;#d#
2459 2546
2460 # if we are delayed by four ticks or more, skip them all 2547 # if we are delayed by four ticks or more, skip them all
2461 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2548 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2462 2549
2463 $TICK_WATCHER->at ($NEXT_TICK); 2550 $TICK_WATCHER->at ($NEXT_TICK);
2464 $TICK_WATCHER->start; 2551 $TICK_WATCHER->start;
2465 }, 2552 },
2466); 2553);
2467 2554
2555{
2556 BDB::max_poll_time $TICK * 0.1;
2557 $BDB_POLL_WATCHER = Event->io (
2558 reentrant => 0,
2559 fd => BDB::poll_fileno,
2560 poll => 'r',
2561 prio => 0,
2562 data => WF_AUTOCANCEL,
2563 cb => \&BDB::poll_cb,
2564 );
2565 BDB::min_parallel 8;
2566
2567 BDB::set_sync_prepare {
2568 my $status;
2569 my $current = $Coro::current;
2570 (
2571 sub {
2572 $status = $!;
2573 $current->ready; undef $current;
2574 },
2575 sub {
2576 Coro::schedule while defined $current;
2577 $! = $status;
2578 },
2579 )
2580 };
2581
2582 unless ($DB_ENV) {
2583 $DB_ENV = BDB::db_env_create;
2584
2585 cf::sync_job {
2586 eval {
2587 BDB::db_env_open
2588 $DB_ENV,
2589 $BDB_ENV_DIR,
2590 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2591 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2592 0666;
2593
2594 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2595
2596 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2597 $DB_ENV->set_lk_detect;
2598 };
2599
2600 cf::cleanup "db_env_open(db): $@" if $@;
2601 };
2602 }
2603}
2604
2605{
2606 IO::AIO::min_parallel 8;
2607
2608 undef $Coro::AIO::WATCHER;
2468IO::AIO::max_poll_time $TICK * 0.2; 2609 IO::AIO::max_poll_time $TICK * 0.1;
2469
2470$AIO_POLL_WATCHER = Event->io ( 2610 $AIO_POLL_WATCHER = Event->io (
2471 fd => IO::AIO::poll_fileno, 2611 reentrant => 0,
2472 poll => 'r',
2473 prio => 5,
2474 data => WF_AUTOCANCEL,
2475 cb => \&IO::AIO::poll_cb,
2476);
2477
2478$WRITE_RUNTIME_WATCHER = Event->timer (
2479 data => WF_AUTOCANCEL, 2612 data => WF_AUTOCANCEL,
2480 after => 1, 2613 fd => IO::AIO::poll_fileno,
2481 interval => 10, 2614 poll => 'r',
2482 cb => Coro::unblock_sub { 2615 prio => 6,
2483 write_runtime 2616 cb => \&IO::AIO::poll_cb,
2484 or warn "ERROR: unable to write runtime file: $!"; 2617 );
2485 }, 2618}
2486);
2487 2619
2488END { cf::emergency_save } 2620END { cf::emergency_save }
2489 2621
24901 26221
2491 2623

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