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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.221 by pippijn, Fri Mar 2 13:32:52 2007 UTC

… …
8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3 (); 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
… …
44our @EVENT; 48our @EVENT;
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;
53our $AIO_POLL_WATCHER;
54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49our $NEXT_TICK; 55our $NEXT_TICK;
50our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
51 61
52our %CFG; 62our %CFG;
53 63
54our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
55our $RUNTIME; 65our $RUNTIME;
56 66
57our %PLAYER; # all users 67our %PLAYER; # all users
58our %MAP; # all maps 68our %MAP; # all maps
59our $LINK_MAP; # the special {link} map, which is always available 69our $LINK_MAP; # the special {link} map, which is always available
60our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
61 72
62our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64 75
65# 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 ∕
… …
78mkdir cf::localdir; 89mkdir cf::localdir;
79mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
80mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
81mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
82mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
83 95
84our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
97
98sub cf::map::normalise;
85 99
86############################################################################# 100#############################################################################
87 101
88=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
89 103
… …
257} 271}
258 272
259sub freeze_mainloop { 273sub freeze_mainloop {
260 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
261 275
262 my $guard = Coro::guard { $TICK_WATCHER->start }; 276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 };
263 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
264 $guard 280 $guard
265} 281}
266 282
267=item cf::async { BLOCK } 283=item cf::async { BLOCK }
… …
338 354
339 $coro 355 $coro
340} 356}
341 357
342sub write_runtime { 358sub write_runtime {
343 return unless $TICK_WATCHER->is_active; 359 my $guard = cf::lock_acquire "write_runtime";
344 360
345 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
346 362
347 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348 or return; 364 or return;
349 365
366 my $value = $cf::RUNTIME + 90 + 10;
350 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369
351 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
352 and return; 371 and return;
353 372
373 # always fsync - this file is important
354 aio_fsync $fh 374 aio_fsync $fh
355 and return; 375 and return;
356 376
357 close $fh 377 close $fh
358 or return; 378 or return;
… …
499our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
500our @CB_MAP = (); 520our @CB_MAP = ();
501 521
502my %attachment; 522my %attachment;
503 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
504sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
505 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
506 532
507 use sort 'stable'; 533 use sort 'stable';
508 534
… …
679# object support 705# object support
680 706
681sub reattach { 707sub reattach {
682 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
683 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684 712
685 my $registry = $obj->registry; 713 my $registry = $obj->registry;
686 714
687 @$registry = (); 715 @$registry = ();
688 716
… …
735 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
736 764
737 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
739 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
741 close $fh; 769 close $fh;
742 770
743 if (@$objs) { 771 if (@$objs) {
744 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) {
745 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
746 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
747 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
748 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
749 close $fh; 777 close $fh;
750 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
751 } 779 }
752 } else { 780 } else {
753 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
… …
945 973
946sub exists($) { 974sub exists($) {
947 my ($login) = @_; 975 my ($login) = @_;
948 976
949 $cf::PLAYER{$login} 977 $cf::PLAYER{$login}
950 or cf::sync_job { !aio_stat $login } 978 or cf::sync_job { !aio_stat path $login }
951} 979}
952 980
953sub find($) { 981sub find($) {
954 return $cf::PLAYER{$_[0]} || do { 982 return $cf::PLAYER{$_[0]} || do {
955 my $login = $_[0]; 983 my $login = $_[0];
… …
1001 1029
1002=cut 1030=cut
1003 1031
1004sub quit_character { 1032sub quit_character {
1005 my ($pl) = @_; 1033 my ($pl) = @_;
1034
1035 my $name = $pl->ob->name;
1006 1036
1007 $pl->{deny_save} = 1; 1037 $pl->{deny_save} = 1;
1008 $pl->password ("*"); # this should lock out the player until we nuked the dir 1038 $pl->password ("*"); # this should lock out the player until we nuked the dir
1009 1039
1010 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1040 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
… …
1015 my $path = playerdir $pl; 1045 my $path = playerdir $pl;
1016 my $temp = "$path~$cf::RUNTIME~deleting~"; 1046 my $temp = "$path~$cf::RUNTIME~deleting~";
1017 aio_rename $path, $temp; 1047 aio_rename $path, $temp;
1018 delete $cf::PLAYER{$pl->ob->name}; 1048 delete $cf::PLAYER{$pl->ob->name};
1019 $pl->destroy; 1049 $pl->destroy;
1050
1051 my $prefix = qr<^~\Q$name\E/>;
1052
1053 # nuke player maps
1054 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055
1020 IO::AIO::aio_rmtree $temp; 1056 IO::AIO::aio_rmtree $temp;
1057}
1058
1059=item $pl->kick
1060
1061Kicks a player out of the game. This destroys the connection.
1062
1063=cut
1064
1065sub kick {
1066 my ($pl, $kicker) = @_;
1067
1068 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1069 $pl->killer ("kicked");
1070 $pl->ns->destroy;
1021} 1071}
1022 1072
1023=item cf::player::list_logins 1073=item cf::player::list_logins
1024 1074
1025Returns am arrayref of all valid playernames in the system, can take a 1075Returns am arrayref of all valid playernames in the system, can take a
… …
1053=cut 1103=cut
1054 1104
1055sub maps($) { 1105sub maps($) {
1056 my ($pl) = @_; 1106 my ($pl) = @_;
1057 1107
1108 $pl = ref $pl ? $pl->ob->name : $pl;
1109
1058 my $files = aio_readdir playerdir $pl 1110 my $files = aio_readdir playerdir $pl
1059 or return; 1111 or return;
1060 1112
1061 my @paths; 1113 my @paths;
1062 1114
1063 for (@$files) { 1115 for (@$files) {
1064 utf8::decode $_; 1116 utf8::decode $_;
1065 next if /\.(?:pl|pst)$/; 1117 next if /\.(?:pl|pst)$/;
1066 next unless /^$PATH_SEP/o; 1118 next unless /^$PATH_SEP/o;
1067 1119
1068 s/\.map$//; 1120 push @paths, cf::map::normalise "~$pl/$_";
1069 push @paths, "~" . $pl->ob->name . "/" . $_;
1070 } 1121 }
1071 1122
1072 \@paths 1123 \@paths
1073} 1124}
1074 1125
… …
1101 1152
1102use Fcntl; 1153use Fcntl;
1103use Coro::AIO; 1154use Coro::AIO;
1104 1155
1105use overload 1156use overload
1106 '""' => \&as_string; 1157 '""' => \&as_string,
1158 fallback => 1;
1107 1159
1108our $MAX_RESET = 3600; 1160our $MAX_RESET = 3600;
1109our $DEFAULT_RESET = 3000; 1161our $DEFAULT_RESET = 3000;
1110 1162
1111sub generate_random_map { 1163sub generate_random_map {
1112 my ($self, $rmp) = @_; 1164 my ($self, $rmp) = @_;
1113
1114 # mit "rum" bekleckern, nicht 1165 # mit "rum" bekleckern, nicht
1115 $self->_create_random_map ( 1166 $self->_create_random_map (
1116 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1167 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1168 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1169 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1125 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1176 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126 (cf::region::find $rmp->{region}), $rmp->{custom} 1177 (cf::region::find $rmp->{region}), $rmp->{custom}
1127 ) 1178 )
1128} 1179}
1129 1180
1181=item cf::map->register ($regex, $prio)
1182
1183Register a handler for the map path matching the given regex at the
1184givne priority (higher is better, built-in handlers have priority 0, the
1185default).
1186
1187=cut
1188
1130sub register { 1189sub register {
1131 my (undef, $regex) = @_; 1190 my (undef, $regex, $prio) = @_;
1132 my $pkg = caller; 1191 my $pkg = caller;
1133 1192
1134 no strict; 1193 no strict;
1135 push @{"$pkg\::ISA"}, __PACKAGE__; 1194 push @{"$pkg\::ISA"}, __PACKAGE__;
1136 1195
1137 $EXT_MAP{$pkg} = qr<$regex>; 1196 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138} 1197}
1139 1198
1140# also paths starting with '/' 1199# also paths starting with '/'
1141$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1200$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1201
1202sub thawer_merge {
1203 my ($self, $merge) = @_;
1204
1205 # we have to keep some variables in memory intact
1206 local $self->{path};
1207 local $self->{load_path};
1208 local $self->{deny_save};
1209 local $self->{deny_reset};
1210
1211 $self->SUPER::thawer_merge ($merge);
1212}
1142 1213
1143sub normalise { 1214sub normalise {
1144 my ($path, $base) = @_; 1215 my ($path, $base) = @_;
1216
1217 $path = "$path"; # make sure its a string
1218
1219 $path =~ s/\.map$//;
1145 1220
1146 # map plan: 1221 # map plan:
1147 # 1222 #
1148 # /! non-realised random map exit (special hack!) 1223 # /! non-realised random map exit (special hack!)
1149 # {... are special paths that are not being touched 1224 # {... are special paths that are not being touched
… …
1177 1252
1178 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1253 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179 1254
1180 $path = normalise $path, $base; 1255 $path = normalise $path, $base;
1181 1256
1182 for my $pkg (keys %EXT_MAP) { 1257 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183 if ($path =~ $EXT_MAP{$pkg}) { 1258 if ($path =~ $EXT_MAP{$pkg}[1]) {
1184 my $self = bless cf::map::new, $pkg; 1259 my $self = bless cf::map::new, $pkg;
1185 $self->{path} = $path; $self->path ($path); 1260 $self->{path} = $path; $self->path ($path);
1186 $self->init; # pass $1 etc. 1261 $self->init; # pass $1 etc.
1187 return $self; 1262 return $self;
1188 } 1263 }
1189 } 1264 }
1190 1265
1191 Carp::carp "unable to resolve path '$path'."; 1266 Carp::carp "unable to resolve path '$path' (base '$base').";
1192 () 1267 ()
1193} 1268}
1194 1269
1195sub init { 1270sub init {
1196 my ($self) = @_; 1271 my ($self) = @_;
… …
1211 1286
1212# the original (read-only) location 1287# the original (read-only) location
1213sub load_path { 1288sub load_path {
1214 my ($self) = @_; 1289 my ($self) = @_;
1215 1290
1216 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1291 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1217} 1292}
1218 1293
1219# the temporary/swap location 1294# the temporary/swap location
1220sub save_path { 1295sub save_path {
1221 my ($self) = @_; 1296 my ($self) = @_;
1222 1297
1223 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1298 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1224 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1299 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1225} 1300}
1226 1301
1227# the unique path, undef == no special unique path 1302# the unique path, undef == no special unique path
1228sub uniq_path { 1303sub uniq_path {
1229 my ($self) = @_; 1304 my ($self) = @_;
… …
1243 1318
1244sub unlink_save { 1319sub unlink_save {
1245 my ($self) = @_; 1320 my ($self) = @_;
1246 1321
1247 utf8::encode (my $save = $self->save_path); 1322 utf8::encode (my $save = $self->save_path);
1248 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1323 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1324 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250} 1325}
1251 1326
1252sub load_header_from($) { 1327sub load_header_from($) {
1253 my ($self, $path) = @_; 1328 my ($self, $path) = @_;
1254 1329
1255 utf8::encode $path; 1330 utf8::encode $path;
1256 aio_open $path, O_RDONLY, 0 1331 #aio_open $path, O_RDONLY, 0
1257 or return; 1332 # or return;
1258 1333
1259 $self->_load_header ($path) 1334 $self->_load_header ($path)
1260 or return; 1335 or return;
1261 1336
1262 $self->{load_path} = $path; 1337 $self->{load_path} = $path;
1263 1338
1264 1 1339 1
1265} 1340}
1266 1341
1267sub load_orig { 1342sub load_header_orig {
1268 my ($self) = @_; 1343 my ($self) = @_;
1269 1344
1270 $self->load_header_from ($self->load_path) 1345 $self->load_header_from ($self->load_path)
1271} 1346}
1272 1347
1273sub load_temp { 1348sub load_header_temp {
1274 my ($self) = @_; 1349 my ($self) = @_;
1275 1350
1276 $self->load_header_from ($self->save_path) 1351 $self->load_header_from ($self->save_path)
1352}
1353
1354sub prepare_temp {
1355 my ($self) = @_;
1356
1357 $self->last_access ((delete $self->{last_access})
1358 || $cf::RUNTIME); #d#
1359 # safety
1360 $self->{instantiate_time} = $cf::RUNTIME
1361 if $self->{instantiate_time} > $cf::RUNTIME;
1362}
1363
1364sub prepare_orig {
1365 my ($self) = @_;
1366
1367 $self->{load_original} = 1;
1368 $self->{instantiate_time} = $cf::RUNTIME;
1369 $self->last_access ($cf::RUNTIME);
1370 $self->instantiate;
1277} 1371}
1278 1372
1279sub load_header { 1373sub load_header {
1280 my ($self) = @_; 1374 my ($self) = @_;
1281 1375
1282 if ($self->load_temp) { 1376 if ($self->load_header_temp) {
1283 $self->last_access ((delete $self->{last_access}) 1377 $self->prepare_temp;
1284 || $cf::RUNTIME); #d#
1285 # safety
1286 $self->{instantiate_time} = $cf::RUNTIME
1287 if $self->{instantiate_time} > $cf::RUNTIME;
1288 } else { 1378 } else {
1289 $self->load_orig 1379 $self->load_header_orig
1290 or return; 1380 or return;
1291 1381 $self->prepare_orig;
1292 $self->{load_original} = 1;
1293 $self->{instantiate_time} = $cf::RUNTIME;
1294 $self->last_access ($cf::RUNTIME);
1295 $self->instantiate;
1296 } 1382 }
1297 1383
1298 1 1384 1
1299} 1385}
1300 1386
… …
1314 $map->{last_save} = $cf::RUNTIME; 1400 $map->{last_save} = $cf::RUNTIME;
1315 1401
1316 $map->load_header 1402 $map->load_header
1317 or return; 1403 or return;
1318 1404
1319 if ($map->should_reset) { 1405 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1406 # doing this can freeze the server in a sync job, obviously
1407 #$cf::WAIT_FOR_TICK->wait;
1320 $map->reset; 1408 $map->reset;
1321 undef $guard; 1409 undef $guard;
1322 $map = find $path 1410 return find $path;
1323 or return;
1324 } 1411 }
1325 1412
1326 $cf::MAP{$path} = $map 1413 $cf::MAP{$path} = $map
1327 } 1414 }
1328} 1415}
1416
1417sub pre_load { }
1418sub post_load { }
1329 1419
1330sub load { 1420sub load {
1331 my ($self) = @_; 1421 my ($self) = @_;
1332 1422
1423 local $self->{deny_reset} = 1; # loading can take a long time
1424
1333 my $path = $self->{path}; 1425 my $path = $self->{path};
1334 my $guard = cf::lock_acquire "map_load:$path"; 1426 my $guard = cf::lock_acquire "map_load:$path";
1335 1427
1336 return if $self->in_memory != cf::MAP_SWAPPED; 1428 return if $self->in_memory != cf::MAP_SWAPPED;
1337 1429
1338 $self->in_memory (cf::MAP_LOADING); 1430 $self->in_memory (cf::MAP_LOADING);
1339 1431
1340 $self->alloc; 1432 $self->alloc;
1433
1434 $self->pre_load;
1435
1341 $self->_load_objects ($self->{load_path}, 1) 1436 $self->_load_objects ($self->{load_path}, 1)
1342 or return; 1437 or return;
1343 1438
1344 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1439 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1345 if delete $self->{load_original}; 1440 if delete $self->{load_original};
… …
1367 unless $self->difficulty; 1462 unless $self->difficulty;
1368 Coro::cede; 1463 Coro::cede;
1369 $self->activate; 1464 $self->activate;
1370 } 1465 }
1371 1466
1467 $self->post_load;
1468
1372 $self->in_memory (cf::MAP_IN_MEMORY); 1469 $self->in_memory (cf::MAP_IN_MEMORY);
1373} 1470}
1374 1471
1375sub customise_for { 1472sub customise_for {
1376 my ($self, $ob) = @_; 1473 my ($self, $ob) = @_;
… …
1416 1513
1417 cf::sync_job { $map->load }; 1514 cf::sync_job { $map->load };
1418} 1515}
1419 1516
1420our %MAP_PREFETCH; 1517our %MAP_PREFETCH;
1421our $MAP_PREFETCHER = Coro::async { 1518our $MAP_PREFETCHER = undef;
1422 while () {
1423 for my $path (keys %MAP_PREFETCH) {
1424 my $map = find $path
1425 or next;
1426 $map->load;
1427
1428 delete $MAP_PREFETCH{$path};
1429 }
1430 Coro::schedule;
1431 }
1432};
1433 1519
1434sub find_async { 1520sub find_async {
1435 my ($path, $origin) = @_; 1521 my ($path, $origin) = @_;
1436 1522
1437 $path = normalise $path, $origin && $origin->{path}; 1523 $path = normalise $path, $origin && $origin->{path};
1438 1524
1439 if (my $map = $cf::MAP{$path}) { 1525 if (my $map = $cf::MAP{$path}) {
1440 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1526 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1441 } 1527 }
1442 1528
1443 $MAP_PREFETCH{$path} = 0; 1529 undef $MAP_PREFETCH{$path};
1530 $MAP_PREFETCHER ||= cf::async {
1531 while (%MAP_PREFETCH) {
1532 for my $path (keys %MAP_PREFETCH) {
1533 my $map = find $path
1534 or next;
1535 $map->load;
1536
1537 delete $MAP_PREFETCH{$path};
1538 }
1539 }
1540 undef $MAP_PREFETCHER;
1541 };
1444 $MAP_PREFETCHER->ready; 1542 $MAP_PREFETCHER->prio (6);
1445 1543
1446 () 1544 ()
1447} 1545}
1448 1546
1449sub save { 1547sub save {
… …
1494 1592
1495sub reset_at { 1593sub reset_at {
1496 my ($self) = @_; 1594 my ($self) = @_;
1497 1595
1498 # TODO: safety, remove and allow resettable per-player maps 1596 # TODO: safety, remove and allow resettable per-player maps
1499 return 1e99 if $self->isa ("ext::map_per_player"); 1597 return 1e99 if $self->isa ("ext::map_per_player");#d#
1500 return 1e99 if $self->{deny_reset}; 1598 return 1e99 if $self->{deny_reset};
1501 1599
1502 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1600 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1601 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504 1602
… …
1509 my ($self) = @_; 1607 my ($self) = @_;
1510 1608
1511 $self->reset_at <= $cf::RUNTIME 1609 $self->reset_at <= $cf::RUNTIME
1512} 1610}
1513 1611
1514sub rename {
1515 my ($self, $new_path) = @_;
1516
1517 normalise $new_path;
1518
1519 $self->unlink_save;
1520
1521 delete $cf::MAP{$self->path};
1522 $self->{path} = $new_path; $self->path ($self->{path});
1523 $cf::MAP{$self->path} = $self;
1524
1525 $self->save;
1526}
1527
1528sub reset { 1612sub reset {
1529 my ($self) = @_; 1613 my ($self) = @_;
1530 1614
1531 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1615 my $lock = cf::lock_acquire "map_data:$self->{path}";
1532 1616
1533 return if $self->players; 1617 return if $self->players;
1534 return if $self->isa ("ext::map_per_player");#d# 1618 return if $self->isa ("ext::map_per_player");#d#
1535 1619
1536 warn "resetting map ", $self->path;#d# 1620 warn "resetting map ", $self->path;#d#
1537 1621
1622 $self->in_memory (cf::MAP_SWAPPED);
1623
1624 # need to save uniques path
1625 unless ($self->{deny_save}) {
1626 my $uniq = $self->uniq_path; utf8::encode $uniq;
1627
1628 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1629 if $uniq;
1630 }
1631
1538 delete $cf::MAP{$self->path}; 1632 delete $cf::MAP{$self->path};
1539 1633
1540 $self->in_memory (cf::MAP_SWAPPED);
1541 $self->clear; 1634 $self->clear;
1542 1635
1543 $_->clear_links_to ($self) for values %cf::MAP; 1636 $_->clear_links_to ($self) for values %cf::MAP;
1544 1637
1545 $self->unlink_save; 1638 $self->unlink_save;
… …
1549my $nuke_counter = "aaaa"; 1642my $nuke_counter = "aaaa";
1550 1643
1551sub nuke { 1644sub nuke {
1552 my ($self) = @_; 1645 my ($self) = @_;
1553 1646
1647 delete $cf::MAP{$self->path};
1648
1649 $self->unlink_save;
1650
1651 bless $self, "cf::map";
1652 delete $self->{deny_reset};
1554 $self->{deny_save} = 1; 1653 $self->{deny_save} = 1;
1555 $self->reset_timeout (1); 1654 $self->reset_timeout (1);
1556 $self->rename ("{nuke}/" . ($nuke_counter++)); 1655 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1656
1657 $cf::MAP{$self->path} = $self;
1658
1557 $self->reset; # polite request, might not happen 1659 $self->reset; # polite request, might not happen
1558} 1660}
1559 1661
1560=item cf::map::unique_maps 1662=item cf::map::unique_maps
1561 1663
… …
1573 for (@$files) { 1675 for (@$files) {
1574 utf8::decode $_; 1676 utf8::decode $_;
1575 next if /\.pst$/; 1677 next if /\.pst$/;
1576 next unless /^$PATH_SEP/o; 1678 next unless /^$PATH_SEP/o;
1577 1679
1578 s/\.map$//; 1680 push @paths, cf::map::normalise $_;
1579 push @paths, $_;
1580 } 1681 }
1581 1682
1582 \@paths 1683 \@paths
1583} 1684}
1584 1685
… …
1678=cut 1779=cut
1679 1780
1680sub link_map { 1781sub link_map {
1681 unless ($LINK_MAP) { 1782 unless ($LINK_MAP) {
1682 $LINK_MAP = cf::map::find "{link}" 1783 $LINK_MAP = cf::map::find "{link}"
1683 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1784 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684 $LINK_MAP->load; 1785 $LINK_MAP->load;
1685 } 1786 }
1686 1787
1687 $LINK_MAP 1788 $LINK_MAP
1688} 1789}
… …
1695 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1796 return if UNIVERSAL::isa $self->map, "ext::map_link";
1696 1797
1697 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1798 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698 if $self->map; 1799 if $self->map;
1699 1800
1700 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1801 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1701} 1802}
1702 1803
1703sub cf::object::player::leave_link { 1804sub cf::object::player::leave_link {
1704 my ($self, $map, $x, $y) = @_; 1805 my ($self, $map, $x, $y) = @_;
1705 1806
… …
1727 $map->load; 1828 $map->load;
1728 $map->load_diag; 1829 $map->load_diag;
1729 1830
1730 return unless $self->contr->active; 1831 return unless $self->contr->active;
1731 $self->activate_recursive; 1832 $self->activate_recursive;
1833
1834 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732 $self->enter_map ($map, $x, $y); 1835 $self->enter_map ($map, $x, $y);
1733} 1836}
1734 1837
1735cf::player->attach ( 1838cf::player->attach (
1736 on_logout => sub { 1839 on_logout => sub {
… …
1749 # try to abort aborted map switching on player login :) 1852 # try to abort aborted map switching on player login :)
1750 # should happen only on crashes 1853 # should happen only on crashes
1751 if ($pl->ob->{_link_pos}) { 1854 if ($pl->ob->{_link_pos}) {
1752 $pl->ob->enter_link; 1855 $pl->ob->enter_link;
1753 (async { 1856 (async {
1754 # we need this sleep as the login has a concurrent enter_exit running
1755 # and this sleep increases chances of the player not ending up in scorn
1756 $pl->ob->reply (undef, 1857 $pl->ob->reply (undef,
1757 "There was an internal problem at your last logout, " 1858 "There was an internal problem at your last logout, "
1758 . "the server will try to bring you to your intended destination in a second.", 1859 . "the server will try to bring you to your intended destination in a second.",
1759 cf::NDI_RED); 1860 cf::NDI_RED);
1861 # we need this sleep as the login has a concurrent enter_exit running
1862 # and this sleep increases chances of the player not ending up in scorn
1760 Coro::Timer::sleep 1; 1863 Coro::Timer::sleep 1;
1761 $pl->ob->leave_link; 1864 $pl->ob->leave_link;
1762 })->prio (2); 1865 })->prio (2);
1763 } 1866 }
1764 }, 1867 },
… …
1772 my ($self, $path, $x, $y) = @_; 1875 my ($self, $path, $x, $y) = @_;
1773 1876
1774 $self->enter_link; 1877 $self->enter_link;
1775 1878
1776 (async { 1879 (async {
1880 my $map = eval {
1777 my $map = cf::map::find $path; 1881 my $map = cf::map::find $path;
1778 $map = $map->customise_for ($self) if $map; 1882 $map = $map->customise_for ($self) if $map;
1779 1883 $map
1780# warn "entering ", $map->path, " at ($x, $y)\n" 1884 } or
1781# if $map;
1782
1783 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1885 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1784 1886
1785 $self->leave_link ($map, $x, $y); 1887 $self->leave_link ($map, $x, $y);
1786 })->prio (1); 1888 })->prio (1);
1787} 1889}
1788 1890
… …
1792 1894
1793sub parse_random_map_params { 1895sub parse_random_map_params {
1794 my ($spec) = @_; 1896 my ($spec) = @_;
1795 1897
1796 my $rmp = { # defaults 1898 my $rmp = { # defaults
1797 xsize => 10, 1899 xsize => (cf::rndm 15, 40),
1798 ysize => 10, 1900 ysize => (cf::rndm 15, 40),
1901 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1902 #layout => string,
1799 }; 1903 };
1800 1904
1801 for (split /\n/, $spec) { 1905 for (split /\n/, $spec) {
1802 my ($k, $v) = split /\s+/, $_, 2; 1906 my ($k, $v) = split /\s+/, $_, 2;
1803 1907
… …
1807 $rmp 1911 $rmp
1808} 1912}
1809 1913
1810sub prepare_random_map { 1914sub prepare_random_map {
1811 my ($exit) = @_; 1915 my ($exit) = @_;
1916
1917 my $guard = cf::lock_acquire "exit_prepare:$exit";
1812 1918
1813 # all this does is basically replace the /! path by 1919 # all this does is basically replace the /! path by
1814 # a new random map path (?random/...) with a seed 1920 # a new random map path (?random/...) with a seed
1815 # that depends on the exit object 1921 # that depends on the exit object
1816 1922
1817 my $rmp = parse_random_map_params $exit->msg; 1923 my $rmp = parse_random_map_params $exit->msg;
1818 1924
1819 if ($exit->map) { 1925 if ($exit->map) {
1820 $rmp->{region} = $exit->map->region_name; 1926 $rmp->{region} = $exit->region->name;
1821 $rmp->{origin_map} = $exit->map->path; 1927 $rmp->{origin_map} = $exit->map->path;
1822 $rmp->{origin_x} = $exit->x; 1928 $rmp->{origin_x} = $exit->x;
1823 $rmp->{origin_y} = $exit->y; 1929 $rmp->{origin_y} = $exit->y;
1824 } 1930 }
1825 1931
1826 $rmp->{random_seed} ||= $exit->random_seed; 1932 $rmp->{random_seed} ||= $exit->random_seed;
1827 1933
1828 my $data = cf::to_json $rmp; 1934 my $data = cf::to_json $rmp;
1829 my $md5 = Digest::MD5::md5_hex $data; 1935 my $md5 = Digest::MD5::md5_hex $data;
1936 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1830 1937
1831 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1938 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832 aio_write $fh, 0, (length $data), $data, 0; 1939 aio_write $fh, 0, (length $data), $data, 0;
1940 undef $fh;
1941 aio_rename "$meta~", $meta;
1833 1942
1834 $exit->slaying ("?random/$md5"); 1943 $exit->slaying ("?random/$md5");
1835 $exit->msg (undef); 1944 $exit->msg (undef);
1836 } 1945 }
1837} 1946}
1838 1947
1839sub cf::object::player::enter_exit { 1948sub cf::object::player::enter_exit {
1840 my ($self, $exit) = @_; 1949 my ($self, $exit) = @_;
1841 1950
1842 return unless $self->type == cf::PLAYER; 1951 return unless $self->type == cf::PLAYER;
1952
1953 if ($exit->slaying eq "/!") {
1954 #TODO: this should de-fi-ni-te-ly not be a sync-job
1955 cf::sync_job { prepare_random_map $exit };
1956 }
1957
1958 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959 my $hp = $exit->stats->hp;
1960 my $sp = $exit->stats->sp;
1843 1961
1844 $self->enter_link; 1962 $self->enter_link;
1845 1963
1846 (async { 1964 (async {
1847 $self->deactivate_recursive; # just to be sure 1965 $self->deactivate_recursive; # just to be sure
1848 unless (eval { 1966 unless (eval {
1849 prepare_random_map $exit 1967 $self->goto ($slaying, $hp, $sp);
1850 if $exit->slaying eq "/!";
1851
1852 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1853 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1854 1968
1855 1; 1969 1;
1856 }) { 1970 }) {
1857 $self->message ("Something went wrong deep within the crossfire server. " 1971 $self->message ("Something went wrong deep within the crossfire server. "
1858 . "I'll try to bring you back to the map you were before. " 1972 . "I'll try to bring you back to the map you were before. "
… …
1919 # get handled first 2033 # get handled first
1920 my $queue = delete $ns->{query_queue} 2034 my $queue = delete $ns->{query_queue}
1921 or return; # be conservative, not sure how that can happen, but we saw a crash here 2035 or return; # be conservative, not sure how that can happen, but we saw a crash here
1922 2036
1923 (shift @$queue)->[1]->($msg); 2037 (shift @$queue)->[1]->($msg);
2038 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924 2039
1925 push @{ $ns->{query_queue} }, @$queue; 2040 push @{ $ns->{query_queue} }, @$queue;
1926 2041
1927 if (@{ $ns->{query_queue} } == @$queue) { 2042 if (@{ $ns->{query_queue} } == @$queue) {
1928 if (@$queue) { 2043 if (@$queue) {
… …
2089The parameter C<$family> should best start with the name of the extension 2204The parameter C<$family> should best start with the name of the extension
2090using it, it should be unique. 2205using it, it should be unique.
2091 2206
2092=over 4 2207=over 4
2093 2208
2094=item $hashref = cf::db_get $family
2095
2096Return a hashref for use by the extension C<$family>, which can be
2097modified. After modifications, you have to call C<cf::db_dirty> or
2098C<cf::db_sync>.
2099
2100=item $value = cf::db_get $family => $key 2209=item $value = cf::db_get $family => $key
2101 2210
2102Returns a single value from the database 2211Returns a single value from the database.
2103
2104=item cf::db_put $family => $hashref
2105
2106Stores the given family hashref into the database. Updates are delayed, if
2107you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108 2212
2109=item cf::db_put $family => $key => $value 2213=item cf::db_put $family => $key => $value
2110 2214
2111Stores the given C<$value> in the family hash. Updates are delayed, if you 2215Stores the given C<$value> in the family.
2112want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114=item cf::db_dirty
2115
2116Marks the database as dirty, to be updated at a later time.
2117
2118=item cf::db_sync
2119
2120Immediately write the database to disk I<if it is dirty>.
2121 2216
2122=cut 2217=cut
2123 2218
2124our $DB; 2219our $DB;
2125 2220
2126{ 2221sub db_init {
2222 unless ($DB) {
2223 $DB = BDB::db_create $DB_ENV;
2224
2225 cf::sync_job {
2226 eval {
2227 $DB->set_flags (BDB::CHKSUM);
2228
2229 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231 cf::cleanup "db_open(db): $!" if $!;
2232 };
2233 cf::cleanup "db_open(db): $@" if $@;
2234 };
2235
2127 my $path = cf::localdir . "/database.pst"; 2236 my $path = cf::localdir . "/database.pst";
2237 if (stat $path) {
2238 cf::sync_job {
2239 my $pst = Storable::retrieve $path;
2128 2240
2129 sub db_load() { 2241 cf::db_put (board => data => $pst->{board});
2130 $DB = stat $path ? Storable::retrieve $path : { }; 2242 cf::db_put (guildrules => data => $pst->{guildrules});
2131 } 2243 cf::db_put (rent => balance => $pst->{rent}{balance});
2244 BDB::db_env_txn_checkpoint $DB_ENV;
2132 2245
2133 my $pid; 2246 unlink $path;
2134
2135 sub db_save() {
2136 waitpid $pid, 0 if $pid;
2137 if (0 == ($pid = fork)) {
2138 $DB->{_meta}{version} = 1;
2139 Storable::nstore $DB, "$path~";
2140 rename "$path~", $path;
2141 cf::_exit 0 if defined $pid;
2142 } 2247 };
2143 }
2144
2145 my $dirty;
2146
2147 sub db_sync() {
2148 db_save if $dirty;
2149 undef $dirty;
2150 }
2151
2152 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153 db_sync;
2154 });
2155
2156 sub db_dirty() {
2157 $dirty = 1;
2158 $idle->start;
2159 }
2160
2161 sub db_get($;$) {
2162 @_ >= 2
2163 ? $DB->{$_[0]}{$_[1]}
2164 : ($DB->{$_[0]} ||= { })
2165 }
2166
2167 sub db_put($$;$) {
2168 if (@_ >= 3) {
2169 $DB->{$_[0]}{$_[1]} = $_[2];
2170 } else {
2171 $DB->{$_[0]} = $_[1];
2172 }
2173 db_dirty;
2174 }
2175
2176 cf::global->attach (
2177 prio => 10000,
2178 on_cleanup => sub {
2179 db_sync;
2180 }, 2248 }
2181 ); 2249 }
2250}
2251
2252sub db_get($$) {
2253 my $key = "$_[0]/$_[1]";
2254
2255 cf::sync_job {
2256 BDB::db_get $DB, undef, $key, my $data;
2257
2258 $! ? ()
2259 : Compress::LZF::sthaw $data
2260 }
2261}
2262
2263sub db_put($$$) {
2264 BDB::dbreq_pri 4;
2265 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2182} 2266}
2183 2267
2184############################################################################# 2268#############################################################################
2185# the server's main() 2269# the server's init and main functions
2270
2271sub init_resources {
2272 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2273 or die "unable to load regions file\n";#d#
2274}
2186 2275
2187sub cfg_load { 2276sub cfg_load {
2188 open my $fh, "<:utf8", cf::confdir . "/config" 2277 open my $fh, "<:utf8", cf::confdir . "/config"
2189 or return; 2278 or return;
2190 2279
… …
2203 }; 2292 };
2204 warn $@ if $@; 2293 warn $@ if $@;
2205 } 2294 }
2206} 2295}
2207 2296
2297sub init {
2298 init_resources;
2299}
2300
2208sub main { 2301sub main {
2209 # we must not ever block the main coroutine 2302 # we must not ever block the main coroutine
2210 local $Coro::idle = sub { 2303 local $Coro::idle = sub {
2211 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2304 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2305 (async {
2212 async { Event::one_event }; 2306 Event::one_event;
2307 })->prio (Coro::PRIO_MAX);
2213 }; 2308 };
2214 2309
2215 cfg_load; 2310 cfg_load;
2216 db_load; 2311 db_init;
2217 load_extensions; 2312 load_extensions;
2313
2314 $TICK_WATCHER->start;
2218 Event::loop; 2315 Event::loop;
2219} 2316}
2220 2317
2221############################################################################# 2318#############################################################################
2222# initialisation and cleanup 2319# initialisation and cleanup
2223 2320
2224# install some emergency cleanup handlers 2321# install some emergency cleanup handlers
2225BEGIN { 2322BEGIN {
2226 for my $signal (qw(INT HUP TERM)) { 2323 for my $signal (qw(INT HUP TERM)) {
2227 Event->signal ( 2324 Event->signal (
2325 reentrant => 0,
2228 data => WF_AUTOCANCEL, 2326 data => WF_AUTOCANCEL,
2229 signal => $signal, 2327 signal => $signal,
2328 prio => 0,
2230 cb => sub { 2329 cb => sub {
2231 cf::cleanup "SIG$signal"; 2330 cf::cleanup "SIG$signal";
2232 }, 2331 },
2233 ); 2332 );
2234 } 2333 }
2235} 2334}
… …
2256 my $map = $cf::MAP{$path} or next; 2355 my $map = $cf::MAP{$path} or next;
2257 $map->valid or next; 2356 $map->valid or next;
2258 $map->save; 2357 $map->save;
2259 } 2358 }
2260 warn "end emergency map save\n"; 2359 warn "end emergency map save\n";
2360
2361 warn "begin emergency database checkpoint\n";
2362 BDB::db_env_txn_checkpoint $DB_ENV;
2363 warn "end emergency database checkpoint\n";
2261 }; 2364 };
2262 2365
2263 warn "leave emergency perl save\n"; 2366 warn "leave emergency perl save\n";
2367}
2368
2369sub post_cleanup {
2370 my ($make_core) = @_;
2371
2372 warn Carp::longmess "post_cleanup backtrace"
2373 if $make_core;
2264} 2374}
2265 2375
2266sub reload() { 2376sub reload() {
2267 # can/must only be called in main 2377 # can/must only be called in main
2268 if ($Coro::current != $Coro::main) { 2378 if ($Coro::current != $Coro::main) {
2269 warn "can only reload from main coroutine\n"; 2379 warn "can only reload from main coroutine";
2270 return; 2380 return;
2271 } 2381 }
2272 2382
2273 warn "reloading..."; 2383 warn "reloading...";
2274 2384
2275 warn "freezing server"; 2385 warn "entering sync_job";
2276 my $guard = freeze_mainloop; 2386
2387 cf::sync_job {
2388 cf::write_runtime; # external watchdog should not bark
2277 cf::emergency_save; 2389 cf::emergency_save;
2390 cf::write_runtime; # external watchdog should not bark
2278 2391
2279 warn "sync database to disk"; 2392 warn "syncing database to disk";
2280 cf::db_sync; 2393 BDB::db_env_txn_checkpoint $DB_ENV;
2281 IO::AIO::flush;
2282 2394
2283 eval {
2284 # if anything goes wrong in here, we should simply crash as we already saved 2395 # if anything goes wrong in here, we should simply crash as we already saved
2285 2396
2286 warn "cancel all watchers"; 2397 warn "cancelling all WF_AUTOCANCEL watchers";
2287 for (Event::all_watchers) { 2398 for (Event::all_watchers) {
2288 $_->cancel if $_->data & WF_AUTOCANCEL; 2399 $_->cancel if $_->data & WF_AUTOCANCEL;
2289 } 2400 }
2290 2401
2402 warn "flushing outstanding aio requests";
2403 for (;;) {
2404 BDB::flush;
2405 IO::AIO::flush;
2406 Coro::cede;
2407 last unless IO::AIO::nreqs || BDB::nreqs;
2408 warn "iterate...";
2409 }
2410
2291 warn "cancel all extension coros"; 2411 warn "cancelling all extension coros";
2292 $_->cancel for values %EXT_CORO; 2412 $_->cancel for values %EXT_CORO;
2293 %EXT_CORO = (); 2413 %EXT_CORO = ();
2294 2414
2295 warn "remove commands"; 2415 warn "removing commands";
2296 %COMMAND = (); 2416 %COMMAND = ();
2297 2417
2298 warn "remove ext commands"; 2418 warn "removing ext commands";
2299 %EXTCMD = (); 2419 %EXTCMD = ();
2300 2420
2301 warn "unload/nuke all extensions"; 2421 warn "unloading/nuking all extensions";
2302 for my $pkg (@EXTS) { 2422 for my $pkg (@EXTS) {
2303 warn "... unloading $pkg"; 2423 warn "... unloading $pkg";
2304 2424
2305 if (my $cb = $pkg->can ("unload")) { 2425 if (my $cb = $pkg->can ("unload")) {
2306 eval { 2426 eval {
… …
2311 2431
2312 warn "... nuking $pkg"; 2432 warn "... nuking $pkg";
2313 Symbol::delete_package $pkg; 2433 Symbol::delete_package $pkg;
2314 } 2434 }
2315 2435
2316 warn "unload all perl modules loaded from $LIBDIR"; 2436 warn "unloading all perl modules loaded from $LIBDIR";
2317 while (my ($k, $v) = each %INC) { 2437 while (my ($k, $v) = each %INC) {
2318 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2438 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319 2439
2320 warn "removing <$k>"; 2440 warn "... unloading $k";
2321 delete $INC{$k}; 2441 delete $INC{$k};
2322 2442
2323 $k =~ s/\.pm$//; 2443 $k =~ s/\.pm$//;
2324 $k =~ s/\//::/g; 2444 $k =~ s/\//::/g;
2325 2445
… …
2328 } 2448 }
2329 2449
2330 Symbol::delete_package $k; 2450 Symbol::delete_package $k;
2331 } 2451 }
2332 2452
2333 warn "get rid of safe::, as good as possible"; 2453 warn "getting rid of safe::, as good as possible";
2334 Symbol::delete_package "safe::$_" 2454 Symbol::delete_package "safe::$_"
2335 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2455 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336 2456
2337 warn "unload cf.pm \"a bit\""; 2457 warn "unloading cf.pm \"a bit\"";
2338 delete $INC{"cf.pm"}; 2458 delete $INC{"cf.pm"};
2339 2459
2340 # don't, removes xs symbols, too, 2460 # don't, removes xs symbols, too,
2341 # and global variables created in xs 2461 # and global variables created in xs
2342 #Symbol::delete_package __PACKAGE__; 2462 #Symbol::delete_package __PACKAGE__;
2343 2463
2464 warn "unload completed, starting to reload now";
2465
2344 warn "reloading cf.pm"; 2466 warn "reloading cf.pm";
2345 require cf; 2467 require cf;
2346 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2468 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347 2469
2348 warn "load config and database again"; 2470 warn "loading config and database again";
2349 cf::cfg_load; 2471 cf::cfg_load;
2350 cf::db_load;
2351 2472
2352 warn "load extensions"; 2473 warn "loading extensions";
2353 cf::load_extensions; 2474 cf::load_extensions;
2354 2475
2355 warn "reattach attachments to objects/players"; 2476 warn "reattaching attachments to objects/players";
2356 _global_reattach; 2477 _global_reattach;
2357 warn "reattach attachments to maps"; 2478 warn "reattaching attachments to maps";
2358 reattach $_ for values %MAP; 2479 reattach $_ for values %MAP;
2359 };
2360 2480
2361 if ($@) { 2481 warn "loading reloadable resources";
2482 init_resources;
2483
2484 warn "leaving sync_job";
2485
2486 1
2487 } or do {
2362 warn $@; 2488 warn $@;
2363 warn "error while reloading, exiting."; 2489 warn "error while reloading, exiting.";
2364 exit 1; 2490 exit 1;
2365 } 2491 };
2366 2492
2367 warn "reloaded"; 2493 warn "reloaded";
2368}; 2494};
2369 2495
2496our $RELOAD_WATCHER; # used only during reload
2497
2370register_command "reload" => sub { 2498register_command "reload" => sub {
2371 my ($who, $arg) = @_; 2499 my ($who, $arg) = @_;
2372 2500
2373 if ($who->flag (FLAG_WIZ)) { 2501 if ($who->flag (FLAG_WIZ)) {
2374 $who->message ("start of reload."); 2502 $who->message ("reloading server.");
2503
2504 # doing reload synchronously and two reloads happen back-to-back,
2505 # coro crashes during coro_state_free->destroy here.
2506
2507 $RELOAD_WATCHER ||= Event->timer (
2508 reentrant => 0,
2509 after => 0,
2510 data => WF_AUTOCANCEL,
2511 cb => sub {
2375 reload; 2512 reload;
2376 $who->message ("end of reload."); 2513 undef $RELOAD_WATCHER;
2514 },
2515 );
2377 } 2516 }
2378}; 2517};
2379 2518
2380unshift @INC, $LIBDIR; 2519unshift @INC, $LIBDIR;
2520
2521my $bug_warning = 0;
2381 2522
2382$TICK_WATCHER = Event->timer ( 2523$TICK_WATCHER = Event->timer (
2383 reentrant => 0, 2524 reentrant => 0,
2525 parked => 1,
2384 prio => 0, 2526 prio => 0,
2385 at => $NEXT_TICK || $TICK, 2527 at => $NEXT_TICK || $TICK,
2386 data => WF_AUTOCANCEL, 2528 data => WF_AUTOCANCEL,
2387 cb => sub { 2529 cb => sub {
2530 if ($Coro::current != $Coro::main) {
2531 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2532 unless ++$bug_warning > 10;
2533 return;
2534 }
2535
2388 $NOW = Event::time; 2536 $NOW = Event::time;
2389 2537
2390 cf::server_tick; # one server iteration 2538 cf::server_tick; # one server iteration
2391 $RUNTIME += $TICK; 2539 $RUNTIME += $TICK;
2392 $NEXT_TICK += $TICK; 2540 $NEXT_TICK += $TICK;
2393 2541
2542 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2543 $NEXT_RUNTIME_WRITE = $NOW + 10;
2544 Coro::async_pool {
2545 write_runtime
2546 or warn "ERROR: unable to write runtime file: $!";
2547 };
2548 }
2549
2394 $WAIT_FOR_TICK->broadcast; 2550 $WAIT_FOR_TICK->broadcast;
2395 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2551 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2552
2553# my $AFTER = Event::time;
2554# warn $AFTER - $NOW;#d#
2396 2555
2397 # if we are delayed by four ticks or more, skip them all 2556 # if we are delayed by four ticks or more, skip them all
2398 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2557 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399 2558
2400 $TICK_WATCHER->at ($NEXT_TICK); 2559 $TICK_WATCHER->at ($NEXT_TICK);
2401 $TICK_WATCHER->start; 2560 $TICK_WATCHER->start;
2402 }, 2561 },
2403); 2562);
2404 2563
2564{
2405IO::AIO::max_poll_time $TICK * 0.2; 2565 BDB::max_poll_time $TICK * 0.1;
2406 2566 $BDB_POLL_WATCHER = Event->io (
2407Event->io ( 2567 reentrant => 0,
2408 fd => IO::AIO::poll_fileno, 2568 fd => BDB::poll_fileno,
2409 poll => 'r', 2569 poll => 'r',
2410 prio => 5, 2570 prio => 0,
2411 data => WF_AUTOCANCEL,
2412 cb => \&IO::AIO::poll_cb,
2413);
2414
2415Event->timer (
2416 data => WF_AUTOCANCEL, 2571 data => WF_AUTOCANCEL,
2417 after => 0, 2572 cb => \&BDB::poll_cb,
2418 interval => 10, 2573 );
2419 cb => sub { 2574 BDB::min_parallel 8;
2420 (Coro::unblock_sub { 2575
2421 write_runtime 2576 BDB::set_sync_prepare {
2422 or warn "ERROR: unable to write runtime file: $!"; 2577 my $status;
2578 my $current = $Coro::current;
2579 (
2580 sub {
2581 $status = $!;
2582 $current->ready; undef $current;
2583 },
2584 sub {
2585 Coro::schedule while defined $current;
2586 $! = $status;
2587 },
2588 )
2589 };
2590
2591 unless ($DB_ENV) {
2592 $DB_ENV = BDB::db_env_create;
2593
2594 cf::sync_job {
2595 eval {
2596 BDB::db_env_open
2597 $DB_ENV,
2598 $BDB_ENV_DIR,
2599 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2600 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2601 0666;
2602
2603 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2604
2605 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2606 $DB_ENV->set_lk_detect;
2607 };
2608
2609 cf::cleanup "db_env_open(db): $@" if $@;
2423 })->(); 2610 };
2424 }, 2611 }
2425); 2612}
2613
2614{
2615 IO::AIO::min_parallel 8;
2616
2617 undef $Coro::AIO::WATCHER;
2618 IO::AIO::max_poll_time $TICK * 0.1;
2619 $AIO_POLL_WATCHER = Event->io (
2620 reentrant => 0,
2621 data => WF_AUTOCANCEL,
2622 fd => IO::AIO::poll_fileno,
2623 poll => 'r',
2624 prio => 6,
2625 cb => \&IO::AIO::poll_cb,
2626 );
2627}
2426 2628
2427END { cf::emergency_save } 2629END { cf::emergency_save }
2428 2630
24291 26311
2430 2632

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