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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC vs.
Revision 1.220 by root, Sat Feb 17 23:54:35 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
… …
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 }
… …
344 354
345 $coro 355 $coro
346} 356}
347 357
348sub write_runtime { 358sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime";
360
349 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
350 362
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 364 or return;
353 365
366 my $value = $cf::RUNTIME + 90 + 10;
354 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
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 371 and return;
357 372
373 # always fsync - this file is important
358 aio_fsync $fh 374 aio_fsync $fh
359 and return; 375 and return;
360 376
361 close $fh 377 close $fh
362 or return; 378 or return;
… …
503our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
504our @CB_MAP = (); 520our @CB_MAP = ();
505 521
506my %attachment; 522my %attachment;
507 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
508sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
509 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
510 532
511 use sort 'stable'; 533 use sort 'stable';
512 534
… …
683# object support 705# object support
684 706
685sub reattach { 707sub reattach {
686 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
687 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688 712
689 my $registry = $obj->registry; 713 my $registry = $obj->registry;
690 714
691 @$registry = (); 715 @$registry = ();
692 716
… …
739 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
740 764
741 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
743 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
744 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
745 close $fh; 769 close $fh;
746 770
747 if (@$objs) { 771 if (@$objs) {
748 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) {
749 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
750 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
751 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
752 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
753 close $fh; 777 close $fh;
754 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
755 } 779 }
756 } else { 780 } else {
757 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
… …
949 973
950sub exists($) { 974sub exists($) {
951 my ($login) = @_; 975 my ($login) = @_;
952 976
953 $cf::PLAYER{$login} 977 $cf::PLAYER{$login}
954 or cf::sync_job { !aio_stat $login } 978 or cf::sync_job { !aio_stat path $login }
955} 979}
956 980
957sub find($) { 981sub find($) {
958 return $cf::PLAYER{$_[0]} || do { 982 return $cf::PLAYER{$_[0]} || do {
959 my $login = $_[0]; 983 my $login = $_[0];
… …
1005 1029
1006=cut 1030=cut
1007 1031
1008sub quit_character { 1032sub quit_character {
1009 my ($pl) = @_; 1033 my ($pl) = @_;
1034
1035 my $name = $pl->ob->name;
1010 1036
1011 $pl->{deny_save} = 1; 1037 $pl->{deny_save} = 1;
1012 $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
1013 1039
1014 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1040 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
… …
1019 my $path = playerdir $pl; 1045 my $path = playerdir $pl;
1020 my $temp = "$path~$cf::RUNTIME~deleting~"; 1046 my $temp = "$path~$cf::RUNTIME~deleting~";
1021 aio_rename $path, $temp; 1047 aio_rename $path, $temp;
1022 delete $cf::PLAYER{$pl->ob->name}; 1048 delete $cf::PLAYER{$pl->ob->name};
1023 $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
1024 IO::AIO::aio_rmtree $temp; 1056 IO::AIO::aio_rmtree $temp;
1025} 1057}
1026 1058
1027=item cf::player::list_logins 1059=item cf::player::list_logins
1028 1060
… …
1057=cut 1089=cut
1058 1090
1059sub maps($) { 1091sub maps($) {
1060 my ($pl) = @_; 1092 my ($pl) = @_;
1061 1093
1094 $pl = ref $pl ? $pl->ob->name : $pl;
1095
1062 my $files = aio_readdir playerdir $pl 1096 my $files = aio_readdir playerdir $pl
1063 or return; 1097 or return;
1064 1098
1065 my @paths; 1099 my @paths;
1066 1100
1067 for (@$files) { 1101 for (@$files) {
1068 utf8::decode $_; 1102 utf8::decode $_;
1069 next if /\.(?:pl|pst)$/; 1103 next if /\.(?:pl|pst)$/;
1070 next unless /^$PATH_SEP/o; 1104 next unless /^$PATH_SEP/o;
1071 1105
1072 s/\.map$//; 1106 push @paths, cf::map::normalise "~$pl/$_";
1073 push @paths, "~" . $pl->ob->name . "/" . $_;
1074 } 1107 }
1075 1108
1076 \@paths 1109 \@paths
1077} 1110}
1078 1111
… …
1105 1138
1106use Fcntl; 1139use Fcntl;
1107use Coro::AIO; 1140use Coro::AIO;
1108 1141
1109use overload 1142use overload
1110 '""' => \&as_string; 1143 '""' => \&as_string,
1144 fallback => 1;
1111 1145
1112our $MAX_RESET = 3600; 1146our $MAX_RESET = 3600;
1113our $DEFAULT_RESET = 3000; 1147our $DEFAULT_RESET = 3000;
1114 1148
1115sub generate_random_map { 1149sub generate_random_map {
1116 my ($self, $rmp) = @_; 1150 my ($self, $rmp) = @_;
1117
1118 # mit "rum" bekleckern, nicht 1151 # mit "rum" bekleckern, nicht
1119 $self->_create_random_map ( 1152 $self->_create_random_map (
1120 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1153 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1154 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1122 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1155 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1129 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1162 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130 (cf::region::find $rmp->{region}), $rmp->{custom} 1163 (cf::region::find $rmp->{region}), $rmp->{custom}
1131 ) 1164 )
1132} 1165}
1133 1166
1167=item cf::map->register ($regex, $prio)
1168
1169Register a handler for the map path matching the given regex at the
1170givne priority (higher is better, built-in handlers have priority 0, the
1171default).
1172
1173=cut
1174
1134sub register { 1175sub register {
1135 my (undef, $regex) = @_; 1176 my (undef, $regex, $prio) = @_;
1136 my $pkg = caller; 1177 my $pkg = caller;
1137 1178
1138 no strict; 1179 no strict;
1139 push @{"$pkg\::ISA"}, __PACKAGE__; 1180 push @{"$pkg\::ISA"}, __PACKAGE__;
1140 1181
1141 $EXT_MAP{$pkg} = qr<$regex>; 1182 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142} 1183}
1143 1184
1144# also paths starting with '/' 1185# also paths starting with '/'
1145$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1186$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1187
1188sub thawer_merge {
1189 my ($self, $merge) = @_;
1190
1191 # we have to keep some variables in memory intact
1192 local $self->{path};
1193 local $self->{load_path};
1194 local $self->{deny_save};
1195 local $self->{deny_reset};
1196
1197 $self->SUPER::thawer_merge ($merge);
1198}
1146 1199
1147sub normalise { 1200sub normalise {
1148 my ($path, $base) = @_; 1201 my ($path, $base) = @_;
1202
1203 $path = "$path"; # make sure its a string
1204
1205 $path =~ s/\.map$//;
1149 1206
1150 # map plan: 1207 # map plan:
1151 # 1208 #
1152 # /! non-realised random map exit (special hack!) 1209 # /! non-realised random map exit (special hack!)
1153 # {... are special paths that are not being touched 1210 # {... are special paths that are not being touched
… …
1181 1238
1182 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1239 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1183 1240
1184 $path = normalise $path, $base; 1241 $path = normalise $path, $base;
1185 1242
1186 for my $pkg (keys %EXT_MAP) { 1243 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187 if ($path =~ $EXT_MAP{$pkg}) { 1244 if ($path =~ $EXT_MAP{$pkg}[1]) {
1188 my $self = bless cf::map::new, $pkg; 1245 my $self = bless cf::map::new, $pkg;
1189 $self->{path} = $path; $self->path ($path); 1246 $self->{path} = $path; $self->path ($path);
1190 $self->init; # pass $1 etc. 1247 $self->init; # pass $1 etc.
1191 return $self; 1248 return $self;
1192 } 1249 }
1193 } 1250 }
1194 1251
1195 Carp::carp "unable to resolve path '$path'."; 1252 Carp::carp "unable to resolve path '$path' (base '$base').";
1196 () 1253 ()
1197} 1254}
1198 1255
1199sub init { 1256sub init {
1200 my ($self) = @_; 1257 my ($self) = @_;
… …
1215 1272
1216# the original (read-only) location 1273# the original (read-only) location
1217sub load_path { 1274sub load_path {
1218 my ($self) = @_; 1275 my ($self) = @_;
1219 1276
1220 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1277 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1221} 1278}
1222 1279
1223# the temporary/swap location 1280# the temporary/swap location
1224sub save_path { 1281sub save_path {
1225 my ($self) = @_; 1282 my ($self) = @_;
1226 1283
1227 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1284 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1285 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1229} 1286}
1230 1287
1231# the unique path, undef == no special unique path 1288# the unique path, undef == no special unique path
1232sub uniq_path { 1289sub uniq_path {
1233 my ($self) = @_; 1290 my ($self) = @_;
… …
1247 1304
1248sub unlink_save { 1305sub unlink_save {
1249 my ($self) = @_; 1306 my ($self) = @_;
1250 1307
1251 utf8::encode (my $save = $self->save_path); 1308 utf8::encode (my $save = $self->save_path);
1252 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1309 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254} 1311}
1255 1312
1256sub load_header_from($) { 1313sub load_header_from($) {
1257 my ($self, $path) = @_; 1314 my ($self, $path) = @_;
1258 1315
1259 utf8::encode $path; 1316 utf8::encode $path;
1260 aio_open $path, O_RDONLY, 0 1317 #aio_open $path, O_RDONLY, 0
1261 or return; 1318 # or return;
1262 1319
1263 $self->_load_header ($path) 1320 $self->_load_header ($path)
1264 or return; 1321 or return;
1265 1322
1266 $self->{load_path} = $path; 1323 $self->{load_path} = $path;
1267 1324
1268 1 1325 1
1269} 1326}
1270 1327
1271sub load_orig { 1328sub load_header_orig {
1272 my ($self) = @_; 1329 my ($self) = @_;
1273 1330
1274 $self->load_header_from ($self->load_path) 1331 $self->load_header_from ($self->load_path)
1275} 1332}
1276 1333
1277sub load_temp { 1334sub load_header_temp {
1278 my ($self) = @_; 1335 my ($self) = @_;
1279 1336
1280 $self->load_header_from ($self->save_path) 1337 $self->load_header_from ($self->save_path)
1338}
1339
1340sub prepare_temp {
1341 my ($self) = @_;
1342
1343 $self->last_access ((delete $self->{last_access})
1344 || $cf::RUNTIME); #d#
1345 # safety
1346 $self->{instantiate_time} = $cf::RUNTIME
1347 if $self->{instantiate_time} > $cf::RUNTIME;
1348}
1349
1350sub prepare_orig {
1351 my ($self) = @_;
1352
1353 $self->{load_original} = 1;
1354 $self->{instantiate_time} = $cf::RUNTIME;
1355 $self->last_access ($cf::RUNTIME);
1356 $self->instantiate;
1281} 1357}
1282 1358
1283sub load_header { 1359sub load_header {
1284 my ($self) = @_; 1360 my ($self) = @_;
1285 1361
1286 if ($self->load_temp) { 1362 if ($self->load_header_temp) {
1287 $self->last_access ((delete $self->{last_access}) 1363 $self->prepare_temp;
1288 || $cf::RUNTIME); #d#
1289 # safety
1290 $self->{instantiate_time} = $cf::RUNTIME
1291 if $self->{instantiate_time} > $cf::RUNTIME;
1292 } else { 1364 } else {
1293 $self->load_orig 1365 $self->load_header_orig
1294 or return; 1366 or return;
1295 1367 $self->prepare_orig;
1296 $self->{load_original} = 1;
1297 $self->{instantiate_time} = $cf::RUNTIME;
1298 $self->last_access ($cf::RUNTIME);
1299 $self->instantiate;
1300 } 1368 }
1301 1369
1302 1 1370 1
1303} 1371}
1304 1372
… …
1318 $map->{last_save} = $cf::RUNTIME; 1386 $map->{last_save} = $cf::RUNTIME;
1319 1387
1320 $map->load_header 1388 $map->load_header
1321 or return; 1389 or return;
1322 1390
1323 if ($map->should_reset) { 1391 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1392 # doing this can freeze the server in a sync job, obviously
1393 #$cf::WAIT_FOR_TICK->wait;
1324 $map->reset; 1394 $map->reset;
1325 undef $guard; 1395 undef $guard;
1326 $map = find $path 1396 return find $path;
1327 or return;
1328 } 1397 }
1329 1398
1330 $cf::MAP{$path} = $map 1399 $cf::MAP{$path} = $map
1331 } 1400 }
1332} 1401}
1402
1403sub pre_load { }
1404sub post_load { }
1333 1405
1334sub load { 1406sub load {
1335 my ($self) = @_; 1407 my ($self) = @_;
1336 1408
1409 local $self->{deny_reset} = 1; # loading can take a long time
1410
1337 my $path = $self->{path}; 1411 my $path = $self->{path};
1338 my $guard = cf::lock_acquire "map_load:$path"; 1412 my $guard = cf::lock_acquire "map_load:$path";
1339 1413
1340 return if $self->in_memory != cf::MAP_SWAPPED; 1414 return if $self->in_memory != cf::MAP_SWAPPED;
1341 1415
1342 $self->in_memory (cf::MAP_LOADING); 1416 $self->in_memory (cf::MAP_LOADING);
1343 1417
1344 $self->alloc; 1418 $self->alloc;
1419
1420 $self->pre_load;
1421
1345 $self->_load_objects ($self->{load_path}, 1) 1422 $self->_load_objects ($self->{load_path}, 1)
1346 or return; 1423 or return;
1347 1424
1348 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1425 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1349 if delete $self->{load_original}; 1426 if delete $self->{load_original};
… …
1371 unless $self->difficulty; 1448 unless $self->difficulty;
1372 Coro::cede; 1449 Coro::cede;
1373 $self->activate; 1450 $self->activate;
1374 } 1451 }
1375 1452
1453 $self->post_load;
1454
1376 $self->in_memory (cf::MAP_IN_MEMORY); 1455 $self->in_memory (cf::MAP_IN_MEMORY);
1377} 1456}
1378 1457
1379sub customise_for { 1458sub customise_for {
1380 my ($self, $ob) = @_; 1459 my ($self, $ob) = @_;
… …
1420 1499
1421 cf::sync_job { $map->load }; 1500 cf::sync_job { $map->load };
1422} 1501}
1423 1502
1424our %MAP_PREFETCH; 1503our %MAP_PREFETCH;
1425our $MAP_PREFETCHER = Coro::async { 1504our $MAP_PREFETCHER = undef;
1426 while () {
1427 for my $path (keys %MAP_PREFETCH) {
1428 my $map = find $path
1429 or next;
1430 $map->load;
1431
1432 delete $MAP_PREFETCH{$path};
1433 }
1434 Coro::schedule;
1435 }
1436};
1437 1505
1438sub find_async { 1506sub find_async {
1439 my ($path, $origin) = @_; 1507 my ($path, $origin) = @_;
1440 1508
1441 $path = normalise $path, $origin && $origin->{path}; 1509 $path = normalise $path, $origin && $origin->{path};
1442 1510
1443 if (my $map = $cf::MAP{$path}) { 1511 if (my $map = $cf::MAP{$path}) {
1444 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1512 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1445 } 1513 }
1446 1514
1447 $MAP_PREFETCH{$path} = 0; 1515 undef $MAP_PREFETCH{$path};
1516 $MAP_PREFETCHER ||= cf::async {
1517 while (%MAP_PREFETCH) {
1518 for my $path (keys %MAP_PREFETCH) {
1519 my $map = find $path
1520 or next;
1521 $map->load;
1522
1523 delete $MAP_PREFETCH{$path};
1524 }
1525 }
1526 undef $MAP_PREFETCHER;
1527 };
1448 $MAP_PREFETCHER->ready; 1528 $MAP_PREFETCHER->prio (6);
1449 1529
1450 () 1530 ()
1451} 1531}
1452 1532
1453sub save { 1533sub save {
… …
1498 1578
1499sub reset_at { 1579sub reset_at {
1500 my ($self) = @_; 1580 my ($self) = @_;
1501 1581
1502 # TODO: safety, remove and allow resettable per-player maps 1582 # TODO: safety, remove and allow resettable per-player maps
1503 return 1e99 if $self->isa ("ext::map_per_player"); 1583 return 1e99 if $self->isa ("ext::map_per_player");#d#
1504 return 1e99 if $self->{deny_reset}; 1584 return 1e99 if $self->{deny_reset};
1505 1585
1506 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1586 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1587 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508 1588
… …
1513 my ($self) = @_; 1593 my ($self) = @_;
1514 1594
1515 $self->reset_at <= $cf::RUNTIME 1595 $self->reset_at <= $cf::RUNTIME
1516} 1596}
1517 1597
1518sub rename {
1519 my ($self, $new_path) = @_;
1520
1521 normalise $new_path;
1522
1523 $self->unlink_save;
1524
1525 delete $cf::MAP{$self->path};
1526 $self->{path} = $new_path; $self->path ($self->{path});
1527 $cf::MAP{$self->path} = $self;
1528
1529 $self->save;
1530}
1531
1532sub reset { 1598sub reset {
1533 my ($self) = @_; 1599 my ($self) = @_;
1534 1600
1535 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1601 my $lock = cf::lock_acquire "map_data:$self->{path}";
1536 1602
1537 return if $self->players; 1603 return if $self->players;
1538 return if $self->isa ("ext::map_per_player");#d# 1604 return if $self->isa ("ext::map_per_player");#d#
1539 1605
1540 warn "resetting map ", $self->path;#d# 1606 warn "resetting map ", $self->path;#d#
1541 1607
1608 $self->in_memory (cf::MAP_SWAPPED);
1609
1610 # need to save uniques path
1611 unless ($self->{deny_save}) {
1612 my $uniq = $self->uniq_path; utf8::encode $uniq;
1613
1614 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1615 if $uniq;
1616 }
1617
1542 delete $cf::MAP{$self->path}; 1618 delete $cf::MAP{$self->path};
1543 1619
1544 $self->in_memory (cf::MAP_SWAPPED);
1545 $self->clear; 1620 $self->clear;
1546 1621
1547 $_->clear_links_to ($self) for values %cf::MAP; 1622 $_->clear_links_to ($self) for values %cf::MAP;
1548 1623
1549 $self->unlink_save; 1624 $self->unlink_save;
… …
1553my $nuke_counter = "aaaa"; 1628my $nuke_counter = "aaaa";
1554 1629
1555sub nuke { 1630sub nuke {
1556 my ($self) = @_; 1631 my ($self) = @_;
1557 1632
1633 delete $cf::MAP{$self->path};
1634
1635 $self->unlink_save;
1636
1637 bless $self, "cf::map";
1638 delete $self->{deny_reset};
1558 $self->{deny_save} = 1; 1639 $self->{deny_save} = 1;
1559 $self->reset_timeout (1); 1640 $self->reset_timeout (1);
1560 $self->rename ("{nuke}/" . ($nuke_counter++)); 1641 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1642
1643 $cf::MAP{$self->path} = $self;
1644
1561 $self->reset; # polite request, might not happen 1645 $self->reset; # polite request, might not happen
1562} 1646}
1563 1647
1564=item cf::map::unique_maps 1648=item cf::map::unique_maps
1565 1649
… …
1577 for (@$files) { 1661 for (@$files) {
1578 utf8::decode $_; 1662 utf8::decode $_;
1579 next if /\.pst$/; 1663 next if /\.pst$/;
1580 next unless /^$PATH_SEP/o; 1664 next unless /^$PATH_SEP/o;
1581 1665
1582 s/\.map$//; 1666 push @paths, cf::map::normalise $_;
1583 push @paths, $_;
1584 } 1667 }
1585 1668
1586 \@paths 1669 \@paths
1587} 1670}
1588 1671
… …
1682=cut 1765=cut
1683 1766
1684sub link_map { 1767sub link_map {
1685 unless ($LINK_MAP) { 1768 unless ($LINK_MAP) {
1686 $LINK_MAP = cf::map::find "{link}" 1769 $LINK_MAP = cf::map::find "{link}"
1687 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1770 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688 $LINK_MAP->load; 1771 $LINK_MAP->load;
1689 } 1772 }
1690 1773
1691 $LINK_MAP 1774 $LINK_MAP
1692} 1775}
… …
1699 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1782 return if UNIVERSAL::isa $self->map, "ext::map_link";
1700 1783
1701 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1784 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702 if $self->map; 1785 if $self->map;
1703 1786
1704 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1787 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1705} 1788}
1706 1789
1707sub cf::object::player::leave_link { 1790sub cf::object::player::leave_link {
1708 my ($self, $map, $x, $y) = @_; 1791 my ($self, $map, $x, $y) = @_;
1709 1792
… …
1731 $map->load; 1814 $map->load;
1732 $map->load_diag; 1815 $map->load_diag;
1733 1816
1734 return unless $self->contr->active; 1817 return unless $self->contr->active;
1735 $self->activate_recursive; 1818 $self->activate_recursive;
1819
1820 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1736 $self->enter_map ($map, $x, $y); 1821 $self->enter_map ($map, $x, $y);
1737} 1822}
1738 1823
1739cf::player->attach ( 1824cf::player->attach (
1740 on_logout => sub { 1825 on_logout => sub {
… …
1753 # try to abort aborted map switching on player login :) 1838 # try to abort aborted map switching on player login :)
1754 # should happen only on crashes 1839 # should happen only on crashes
1755 if ($pl->ob->{_link_pos}) { 1840 if ($pl->ob->{_link_pos}) {
1756 $pl->ob->enter_link; 1841 $pl->ob->enter_link;
1757 (async { 1842 (async {
1758 # we need this sleep as the login has a concurrent enter_exit running
1759 # and this sleep increases chances of the player not ending up in scorn
1760 $pl->ob->reply (undef, 1843 $pl->ob->reply (undef,
1761 "There was an internal problem at your last logout, " 1844 "There was an internal problem at your last logout, "
1762 . "the server will try to bring you to your intended destination in a second.", 1845 . "the server will try to bring you to your intended destination in a second.",
1763 cf::NDI_RED); 1846 cf::NDI_RED);
1847 # we need this sleep as the login has a concurrent enter_exit running
1848 # and this sleep increases chances of the player not ending up in scorn
1764 Coro::Timer::sleep 1; 1849 Coro::Timer::sleep 1;
1765 $pl->ob->leave_link; 1850 $pl->ob->leave_link;
1766 })->prio (2); 1851 })->prio (2);
1767 } 1852 }
1768 }, 1853 },
… …
1776 my ($self, $path, $x, $y) = @_; 1861 my ($self, $path, $x, $y) = @_;
1777 1862
1778 $self->enter_link; 1863 $self->enter_link;
1779 1864
1780 (async { 1865 (async {
1866 my $map = eval {
1781 my $map = cf::map::find $path; 1867 my $map = cf::map::find $path;
1782 $map = $map->customise_for ($self) if $map; 1868 $map = $map->customise_for ($self) if $map;
1783 1869 $map
1784# warn "entering ", $map->path, " at ($x, $y)\n" 1870 } or
1785# if $map;
1786
1787 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1871 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1788 1872
1789 $self->leave_link ($map, $x, $y); 1873 $self->leave_link ($map, $x, $y);
1790 })->prio (1); 1874 })->prio (1);
1791} 1875}
1792 1876
… …
1796 1880
1797sub parse_random_map_params { 1881sub parse_random_map_params {
1798 my ($spec) = @_; 1882 my ($spec) = @_;
1799 1883
1800 my $rmp = { # defaults 1884 my $rmp = { # defaults
1801 xsize => 10, 1885 xsize => (cf::rndm 15, 40),
1802 ysize => 10, 1886 ysize => (cf::rndm 15, 40),
1887 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1888 #layout => string,
1803 }; 1889 };
1804 1890
1805 for (split /\n/, $spec) { 1891 for (split /\n/, $spec) {
1806 my ($k, $v) = split /\s+/, $_, 2; 1892 my ($k, $v) = split /\s+/, $_, 2;
1807 1893
… …
1811 $rmp 1897 $rmp
1812} 1898}
1813 1899
1814sub prepare_random_map { 1900sub prepare_random_map {
1815 my ($exit) = @_; 1901 my ($exit) = @_;
1902
1903 my $guard = cf::lock_acquire "exit_prepare:$exit";
1816 1904
1817 # all this does is basically replace the /! path by 1905 # all this does is basically replace the /! path by
1818 # a new random map path (?random/...) with a seed 1906 # a new random map path (?random/...) with a seed
1819 # that depends on the exit object 1907 # that depends on the exit object
1820 1908
1821 my $rmp = parse_random_map_params $exit->msg; 1909 my $rmp = parse_random_map_params $exit->msg;
1822 1910
1823 if ($exit->map) { 1911 if ($exit->map) {
1824 $rmp->{region} = $exit->map->region_name; 1912 $rmp->{region} = $exit->region->name;
1825 $rmp->{origin_map} = $exit->map->path; 1913 $rmp->{origin_map} = $exit->map->path;
1826 $rmp->{origin_x} = $exit->x; 1914 $rmp->{origin_x} = $exit->x;
1827 $rmp->{origin_y} = $exit->y; 1915 $rmp->{origin_y} = $exit->y;
1828 } 1916 }
1829 1917
1830 $rmp->{random_seed} ||= $exit->random_seed; 1918 $rmp->{random_seed} ||= $exit->random_seed;
1831 1919
1832 my $data = cf::to_json $rmp; 1920 my $data = cf::to_json $rmp;
1833 my $md5 = Digest::MD5::md5_hex $data; 1921 my $md5 = Digest::MD5::md5_hex $data;
1922 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1834 1923
1835 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1924 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1836 aio_write $fh, 0, (length $data), $data, 0; 1925 aio_write $fh, 0, (length $data), $data, 0;
1926 undef $fh;
1927 aio_rename "$meta~", $meta;
1837 1928
1838 $exit->slaying ("?random/$md5"); 1929 $exit->slaying ("?random/$md5");
1839 $exit->msg (undef); 1930 $exit->msg (undef);
1840 } 1931 }
1841} 1932}
1842 1933
1843sub cf::object::player::enter_exit { 1934sub cf::object::player::enter_exit {
1844 my ($self, $exit) = @_; 1935 my ($self, $exit) = @_;
1845 1936
1846 return unless $self->type == cf::PLAYER; 1937 return unless $self->type == cf::PLAYER;
1938
1939 if ($exit->slaying eq "/!") {
1940 #TODO: this should de-fi-ni-te-ly not be a sync-job
1941 cf::sync_job { prepare_random_map $exit };
1942 }
1943
1944 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945 my $hp = $exit->stats->hp;
1946 my $sp = $exit->stats->sp;
1847 1947
1848 $self->enter_link; 1948 $self->enter_link;
1849 1949
1850 (async { 1950 (async {
1851 $self->deactivate_recursive; # just to be sure 1951 $self->deactivate_recursive; # just to be sure
1852 unless (eval { 1952 unless (eval {
1853 prepare_random_map $exit 1953 $self->goto ($slaying, $hp, $sp);
1854 if $exit->slaying eq "/!";
1855
1856 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1857 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1858 1954
1859 1; 1955 1;
1860 }) { 1956 }) {
1861 $self->message ("Something went wrong deep within the crossfire server. " 1957 $self->message ("Something went wrong deep within the crossfire server. "
1862 . "I'll try to bring you back to the map you were before. " 1958 . "I'll try to bring you back to the map you were before. "
… …
1923 # get handled first 2019 # get handled first
1924 my $queue = delete $ns->{query_queue} 2020 my $queue = delete $ns->{query_queue}
1925 or return; # be conservative, not sure how that can happen, but we saw a crash here 2021 or return; # be conservative, not sure how that can happen, but we saw a crash here
1926 2022
1927 (shift @$queue)->[1]->($msg); 2023 (shift @$queue)->[1]->($msg);
2024 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928 2025
1929 push @{ $ns->{query_queue} }, @$queue; 2026 push @{ $ns->{query_queue} }, @$queue;
1930 2027
1931 if (@{ $ns->{query_queue} } == @$queue) { 2028 if (@{ $ns->{query_queue} } == @$queue) {
1932 if (@$queue) { 2029 if (@$queue) {
… …
2093The parameter C<$family> should best start with the name of the extension 2190The parameter C<$family> should best start with the name of the extension
2094using it, it should be unique. 2191using it, it should be unique.
2095 2192
2096=over 4 2193=over 4
2097 2194
2098=item $hashref = cf::db_get $family
2099
2100Return a hashref for use by the extension C<$family>, which can be
2101modified. After modifications, you have to call C<cf::db_dirty> or
2102C<cf::db_sync>.
2103
2104=item $value = cf::db_get $family => $key 2195=item $value = cf::db_get $family => $key
2105 2196
2106Returns a single value from the database 2197Returns a single value from the database.
2107
2108=item cf::db_put $family => $hashref
2109
2110Stores the given family hashref into the database. Updates are delayed, if
2111you want the data to be synced to disk immediately, use C<cf::db_sync>.
2112 2198
2113=item cf::db_put $family => $key => $value 2199=item cf::db_put $family => $key => $value
2114 2200
2115Stores the given C<$value> in the family hash. Updates are delayed, if you 2201Stores the given C<$value> in the family.
2116want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118=item cf::db_dirty
2119
2120Marks the database as dirty, to be updated at a later time.
2121
2122=item cf::db_sync
2123
2124Immediately write the database to disk I<if it is dirty>.
2125 2202
2126=cut 2203=cut
2127 2204
2128our $DB; 2205our $DB;
2129 2206
2130{ 2207sub db_init {
2208 unless ($DB) {
2209 $DB = BDB::db_create $DB_ENV;
2210
2211 cf::sync_job {
2212 eval {
2213 $DB->set_flags (BDB::CHKSUM);
2214
2215 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217 cf::cleanup "db_open(db): $!" if $!;
2218 };
2219 cf::cleanup "db_open(db): $@" if $@;
2220 };
2221
2131 my $path = cf::localdir . "/database.pst"; 2222 my $path = cf::localdir . "/database.pst";
2223 if (stat $path) {
2224 cf::sync_job {
2225 my $pst = Storable::retrieve $path;
2132 2226
2133 sub db_load() { 2227 cf::db_put (board => data => $pst->{board});
2134 $DB = stat $path ? Storable::retrieve $path : { }; 2228 cf::db_put (guildrules => data => $pst->{guildrules});
2135 } 2229 cf::db_put (rent => balance => $pst->{rent}{balance});
2230 BDB::db_env_txn_checkpoint $DB_ENV;
2136 2231
2137 my $pid; 2232 unlink $path;
2138
2139 sub db_save() {
2140 waitpid $pid, 0 if $pid;
2141 if (0 == ($pid = fork)) {
2142 $DB->{_meta}{version} = 1;
2143 Storable::nstore $DB, "$path~";
2144 rename "$path~", $path;
2145 cf::_exit 0 if defined $pid;
2146 } 2233 };
2147 }
2148
2149 my $dirty;
2150
2151 sub db_sync() {
2152 db_save if $dirty;
2153 undef $dirty;
2154 }
2155
2156 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157 db_sync;
2158 });
2159
2160 sub db_dirty() {
2161 $dirty = 1;
2162 $idle->start;
2163 }
2164
2165 sub db_get($;$) {
2166 @_ >= 2
2167 ? $DB->{$_[0]}{$_[1]}
2168 : ($DB->{$_[0]} ||= { })
2169 }
2170
2171 sub db_put($$;$) {
2172 if (@_ >= 3) {
2173 $DB->{$_[0]}{$_[1]} = $_[2];
2174 } else {
2175 $DB->{$_[0]} = $_[1];
2176 }
2177 db_dirty;
2178 }
2179
2180 cf::global->attach (
2181 prio => 10000,
2182 on_cleanup => sub {
2183 db_sync;
2184 }, 2234 }
2185 ); 2235 }
2236}
2237
2238sub db_get($$) {
2239 my $key = "$_[0]/$_[1]";
2240
2241 cf::sync_job {
2242 BDB::db_get $DB, undef, $key, my $data;
2243
2244 $! ? ()
2245 : Compress::LZF::sthaw $data
2246 }
2247}
2248
2249sub db_put($$$) {
2250 BDB::dbreq_pri 4;
2251 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2186} 2252}
2187 2253
2188############################################################################# 2254#############################################################################
2189# the server's main() 2255# the server's init and main functions
2256
2257sub init_resources {
2258 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2259 or die "unable to load regions file\n";#d#
2260}
2190 2261
2191sub cfg_load { 2262sub cfg_load {
2192 open my $fh, "<:utf8", cf::confdir . "/config" 2263 open my $fh, "<:utf8", cf::confdir . "/config"
2193 or return; 2264 or return;
2194 2265
… …
2207 }; 2278 };
2208 warn $@ if $@; 2279 warn $@ if $@;
2209 } 2280 }
2210} 2281}
2211 2282
2283sub init {
2284 init_resources;
2285}
2286
2212sub main { 2287sub main {
2213 # we must not ever block the main coroutine 2288 # we must not ever block the main coroutine
2214 local $Coro::idle = sub { 2289 local $Coro::idle = sub {
2215 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2290 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2291 (async {
2216 async { Event::one_event }; 2292 Event::one_event;
2293 })->prio (Coro::PRIO_MAX);
2217 }; 2294 };
2218 2295
2219 cfg_load; 2296 cfg_load;
2220 db_load; 2297 db_init;
2221 load_extensions; 2298 load_extensions;
2299
2300 $TICK_WATCHER->start;
2222 Event::loop; 2301 Event::loop;
2223} 2302}
2224 2303
2225############################################################################# 2304#############################################################################
2226# initialisation and cleanup 2305# initialisation and cleanup
2227 2306
2228# install some emergency cleanup handlers 2307# install some emergency cleanup handlers
2229BEGIN { 2308BEGIN {
2230 for my $signal (qw(INT HUP TERM)) { 2309 for my $signal (qw(INT HUP TERM)) {
2231 Event->signal ( 2310 Event->signal (
2311 reentrant => 0,
2232 data => WF_AUTOCANCEL, 2312 data => WF_AUTOCANCEL,
2233 signal => $signal, 2313 signal => $signal,
2314 prio => 0,
2234 cb => sub { 2315 cb => sub {
2235 cf::cleanup "SIG$signal"; 2316 cf::cleanup "SIG$signal";
2236 }, 2317 },
2237 ); 2318 );
2238 } 2319 }
2239} 2320}
… …
2260 my $map = $cf::MAP{$path} or next; 2341 my $map = $cf::MAP{$path} or next;
2261 $map->valid or next; 2342 $map->valid or next;
2262 $map->save; 2343 $map->save;
2263 } 2344 }
2264 warn "end emergency map save\n"; 2345 warn "end emergency map save\n";
2346
2347 warn "begin emergency database checkpoint\n";
2348 BDB::db_env_txn_checkpoint $DB_ENV;
2349 warn "end emergency database checkpoint\n";
2265 }; 2350 };
2266 2351
2267 warn "leave emergency perl save\n"; 2352 warn "leave emergency perl save\n";
2353}
2354
2355sub post_cleanup {
2356 my ($make_core) = @_;
2357
2358 warn Carp::longmess "post_cleanup backtrace"
2359 if $make_core;
2268} 2360}
2269 2361
2270sub reload() { 2362sub reload() {
2271 # can/must only be called in main 2363 # can/must only be called in main
2272 if ($Coro::current != $Coro::main) { 2364 if ($Coro::current != $Coro::main) {
2273 warn "can only reload from main coroutine\n"; 2365 warn "can only reload from main coroutine";
2274 return; 2366 return;
2275 } 2367 }
2276 2368
2277 warn "reloading..."; 2369 warn "reloading...";
2278 2370
2279 warn "freezing server"; 2371 warn "entering sync_job";
2280 my $guard = freeze_mainloop; 2372
2373 cf::sync_job {
2374 cf::write_runtime; # external watchdog should not bark
2281 cf::emergency_save; 2375 cf::emergency_save;
2376 cf::write_runtime; # external watchdog should not bark
2282 2377
2283 warn "sync database to disk"; 2378 warn "syncing database to disk";
2284 cf::db_sync; 2379 BDB::db_env_txn_checkpoint $DB_ENV;
2285 IO::AIO::flush;
2286 2380
2287 eval {
2288 # if anything goes wrong in here, we should simply crash as we already saved 2381 # if anything goes wrong in here, we should simply crash as we already saved
2289 2382
2290 warn "cancel all watchers"; 2383 warn "cancelling all WF_AUTOCANCEL watchers";
2291 for (Event::all_watchers) { 2384 for (Event::all_watchers) {
2292 $_->cancel if $_->data & WF_AUTOCANCEL; 2385 $_->cancel if $_->data & WF_AUTOCANCEL;
2293 } 2386 }
2294 2387
2388 warn "flushing outstanding aio requests";
2389 for (;;) {
2390 BDB::flush;
2391 IO::AIO::flush;
2392 Coro::cede;
2393 last unless IO::AIO::nreqs || BDB::nreqs;
2394 warn "iterate...";
2395 }
2396
2295 warn "cancel all extension coros"; 2397 warn "cancelling all extension coros";
2296 $_->cancel for values %EXT_CORO; 2398 $_->cancel for values %EXT_CORO;
2297 %EXT_CORO = (); 2399 %EXT_CORO = ();
2298 2400
2299 warn "remove commands"; 2401 warn "removing commands";
2300 %COMMAND = (); 2402 %COMMAND = ();
2301 2403
2302 warn "remove ext commands"; 2404 warn "removing ext commands";
2303 %EXTCMD = (); 2405 %EXTCMD = ();
2304 2406
2305 warn "unload/nuke all extensions"; 2407 warn "unloading/nuking all extensions";
2306 for my $pkg (@EXTS) { 2408 for my $pkg (@EXTS) {
2307 warn "... unloading $pkg"; 2409 warn "... unloading $pkg";
2308 2410
2309 if (my $cb = $pkg->can ("unload")) { 2411 if (my $cb = $pkg->can ("unload")) {
2310 eval { 2412 eval {
… …
2315 2417
2316 warn "... nuking $pkg"; 2418 warn "... nuking $pkg";
2317 Symbol::delete_package $pkg; 2419 Symbol::delete_package $pkg;
2318 } 2420 }
2319 2421
2320 warn "unload all perl modules loaded from $LIBDIR"; 2422 warn "unloading all perl modules loaded from $LIBDIR";
2321 while (my ($k, $v) = each %INC) { 2423 while (my ($k, $v) = each %INC) {
2322 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2424 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323 2425
2324 warn "removing <$k>"; 2426 warn "... unloading $k";
2325 delete $INC{$k}; 2427 delete $INC{$k};
2326 2428
2327 $k =~ s/\.pm$//; 2429 $k =~ s/\.pm$//;
2328 $k =~ s/\//::/g; 2430 $k =~ s/\//::/g;
2329 2431
… …
2332 } 2434 }
2333 2435
2334 Symbol::delete_package $k; 2436 Symbol::delete_package $k;
2335 } 2437 }
2336 2438
2337 warn "get rid of safe::, as good as possible"; 2439 warn "getting rid of safe::, as good as possible";
2338 Symbol::delete_package "safe::$_" 2440 Symbol::delete_package "safe::$_"
2339 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2441 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2340 2442
2341 warn "unload cf.pm \"a bit\""; 2443 warn "unloading cf.pm \"a bit\"";
2342 delete $INC{"cf.pm"}; 2444 delete $INC{"cf.pm"};
2343 2445
2344 # don't, removes xs symbols, too, 2446 # don't, removes xs symbols, too,
2345 # and global variables created in xs 2447 # and global variables created in xs
2346 #Symbol::delete_package __PACKAGE__; 2448 #Symbol::delete_package __PACKAGE__;
2347 2449
2450 warn "unload completed, starting to reload now";
2451
2348 warn "reloading cf.pm"; 2452 warn "reloading cf.pm";
2349 require cf; 2453 require cf;
2350 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2454 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2351 2455
2352 warn "load config and database again"; 2456 warn "loading config and database again";
2353 cf::cfg_load; 2457 cf::cfg_load;
2354 cf::db_load;
2355 2458
2356 warn "load extensions"; 2459 warn "loading extensions";
2357 cf::load_extensions; 2460 cf::load_extensions;
2358 2461
2359 warn "reattach attachments to objects/players"; 2462 warn "reattaching attachments to objects/players";
2360 _global_reattach; 2463 _global_reattach;
2361 warn "reattach attachments to maps"; 2464 warn "reattaching attachments to maps";
2362 reattach $_ for values %MAP; 2465 reattach $_ for values %MAP;
2363 };
2364 2466
2365 if ($@) { 2467 warn "loading reloadable resources";
2468 init_resources;
2469
2470 warn "leaving sync_job";
2471
2472 1
2473 } or do {
2366 warn $@; 2474 warn $@;
2367 warn "error while reloading, exiting."; 2475 warn "error while reloading, exiting.";
2368 exit 1; 2476 exit 1;
2369 } 2477 };
2370 2478
2371 warn "reloaded"; 2479 warn "reloaded";
2372}; 2480};
2373 2481
2482our $RELOAD_WATCHER; # used only during reload
2483
2374register_command "reload" => sub { 2484register_command "reload" => sub {
2375 my ($who, $arg) = @_; 2485 my ($who, $arg) = @_;
2376 2486
2377 if ($who->flag (FLAG_WIZ)) { 2487 if ($who->flag (FLAG_WIZ)) {
2378 $who->message ("start of reload."); 2488 $who->message ("reloading server.");
2489
2490 # doing reload synchronously and two reloads happen back-to-back,
2491 # coro crashes during coro_state_free->destroy here.
2492
2493 $RELOAD_WATCHER ||= Event->timer (
2494 reentrant => 0,
2495 after => 0,
2496 data => WF_AUTOCANCEL,
2497 cb => sub {
2379 reload; 2498 reload;
2380 $who->message ("end of reload."); 2499 undef $RELOAD_WATCHER;
2500 },
2501 );
2381 } 2502 }
2382}; 2503};
2383 2504
2384unshift @INC, $LIBDIR; 2505unshift @INC, $LIBDIR;
2506
2507my $bug_warning = 0;
2385 2508
2386$TICK_WATCHER = Event->timer ( 2509$TICK_WATCHER = Event->timer (
2387 reentrant => 0, 2510 reentrant => 0,
2511 parked => 1,
2388 prio => 0, 2512 prio => 0,
2389 at => $NEXT_TICK || $TICK, 2513 at => $NEXT_TICK || $TICK,
2390 data => WF_AUTOCANCEL, 2514 data => WF_AUTOCANCEL,
2391 cb => sub { 2515 cb => sub {
2516 if ($Coro::current != $Coro::main) {
2517 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518 unless ++$bug_warning > 10;
2519 return;
2520 }
2521
2392 $NOW = Event::time; 2522 $NOW = Event::time;
2393 2523
2394 cf::server_tick; # one server iteration 2524 cf::server_tick; # one server iteration
2395 $RUNTIME += $TICK; 2525 $RUNTIME += $TICK;
2396 $NEXT_TICK += $TICK; 2526 $NEXT_TICK += $TICK;
2397 2527
2528 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529 $NEXT_RUNTIME_WRITE = $NOW + 10;
2530 Coro::async_pool {
2531 write_runtime
2532 or warn "ERROR: unable to write runtime file: $!";
2533 };
2534 }
2535
2398 $WAIT_FOR_TICK->broadcast; 2536 $WAIT_FOR_TICK->broadcast;
2399 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2537 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539# my $AFTER = Event::time;
2540# warn $AFTER - $NOW;#d#
2400 2541
2401 # if we are delayed by four ticks or more, skip them all 2542 # if we are delayed by four ticks or more, skip them all
2402 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2543 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2403 2544
2404 $TICK_WATCHER->at ($NEXT_TICK); 2545 $TICK_WATCHER->at ($NEXT_TICK);
2405 $TICK_WATCHER->start; 2546 $TICK_WATCHER->start;
2406 }, 2547 },
2407); 2548);
2408 2549
2550{
2551 BDB::max_poll_time $TICK * 0.1;
2552 $BDB_POLL_WATCHER = Event->io (
2553 reentrant => 0,
2554 fd => BDB::poll_fileno,
2555 poll => 'r',
2556 prio => 0,
2557 data => WF_AUTOCANCEL,
2558 cb => \&BDB::poll_cb,
2559 );
2560 BDB::min_parallel 8;
2561
2562 BDB::set_sync_prepare {
2563 my $status;
2564 my $current = $Coro::current;
2565 (
2566 sub {
2567 $status = $!;
2568 $current->ready; undef $current;
2569 },
2570 sub {
2571 Coro::schedule while defined $current;
2572 $! = $status;
2573 },
2574 )
2575 };
2576
2577 unless ($DB_ENV) {
2578 $DB_ENV = BDB::db_env_create;
2579
2580 cf::sync_job {
2581 eval {
2582 BDB::db_env_open
2583 $DB_ENV,
2584 $BDB_ENV_DIR,
2585 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587 0666;
2588
2589 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2590
2591 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592 $DB_ENV->set_lk_detect;
2593 };
2594
2595 cf::cleanup "db_env_open(db): $@" if $@;
2596 };
2597 }
2598}
2599
2600{
2601 IO::AIO::min_parallel 8;
2602
2603 undef $Coro::AIO::WATCHER;
2409IO::AIO::max_poll_time $TICK * 0.2; 2604 IO::AIO::max_poll_time $TICK * 0.1;
2410
2411$AIO_POLL_WATCHER = Event->io ( 2605 $AIO_POLL_WATCHER = Event->io (
2412 fd => IO::AIO::poll_fileno, 2606 reentrant => 0,
2413 poll => 'r',
2414 prio => 5,
2415 data => WF_AUTOCANCEL,
2416 cb => \&IO::AIO::poll_cb,
2417);
2418
2419$WRITE_RUNTIME_WATCHER = Event->timer (
2420 data => WF_AUTOCANCEL, 2607 data => WF_AUTOCANCEL,
2421 after => 0, 2608 fd => IO::AIO::poll_fileno,
2422 interval => 10, 2609 poll => 'r',
2423 cb => sub { 2610 prio => 6,
2424 (Coro::unblock_sub { 2611 cb => \&IO::AIO::poll_cb,
2425 write_runtime 2612 );
2426 or warn "ERROR: unable to write runtime file: $!"; 2613}
2427 })->();
2428 },
2429);
2430 2614
2431END { cf::emergency_save } 2615END { cf::emergency_save }
2432 2616
24331 26171
2434 2618

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