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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.224 by root, Mon Mar 12 21:42:12 2007 UTC

… …
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Storable;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
12 13
13use Coro 3.3 (); 14use Coro 3.52 ();
15use Coro::State;
14use Coro::Event; 16use Coro::Event;
15use Coro::Timer; 17use Coro::Timer;
16use Coro::Signal; 18use Coro::Signal;
17use Coro::Semaphore; 19use Coro::Semaphore;
18use Coro::AIO; 20use Coro::AIO;
19 21
22use BDB ();
20use Data::Dumper; 23use Data::Dumper;
21use Digest::MD5; 24use Digest::MD5;
22use Fcntl; 25use Fcntl;
23use IO::AIO 2.32 (); 26use IO::AIO 2.32 ();
24use YAML::Syck (); 27use YAML::Syck ();
25use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
26 30
31Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
32Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 33$Event::Eval = 1; # no idea why this is required, but it is
28 34
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 35sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 36
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 37# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 38$YAML::Syck::ImplicitUnicode = 1;
… …
39our @EXTS = (); # list of extension package names 45our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 46our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 47our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 48our %EXT_MAP = (); # pluggable maps
43 49
50our $RELOAD; # number of reloads so far
44our @EVENT; 51our @EVENT;
45our $LIBDIR = datadir . "/ext"; 52our $LIBDIR = datadir . "/ext";
46 53
47our $TICK = MAX_TIME * 1e-6; 54our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 55our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 56our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 57our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 58our $NEXT_TICK;
52our $NOW; 59our $NOW;
60our $USE_FSYNC = 1; # use fsync to write maps - default off
61
62our $BDB_POLL_WATCHER;
63our $DB_ENV;
53 64
54our %CFG; 65our %CFG;
55 66
56our $UPTIME; $UPTIME ||= time; 67our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 68our $RUNTIME;
58 69
59our %PLAYER; # all users 70our %PLAYER; # all users
60our %MAP; # all maps 71our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 72our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 73our $RANDOM_MAPS = cf::localdir . "/random";
74our $BDB_ENV_DIR = cf::localdir . "/db";
63 75
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 76our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 77our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 78
67# used to convert map paths into valid unix filenames by replacing / by ∕ 79# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 92mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 93mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 94mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 95mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 96mkdir $RANDOM_MAPS;
97mkdir $BDB_ENV_DIR;
85 98
86our $EMERGENCY_POSITION; 99our $EMERGENCY_POSITION;
100
101sub cf::map::normalise;
87 102
88############################################################################# 103#############################################################################
89 104
90=head2 GLOBAL VARIABLES 105=head2 GLOBAL VARIABLES
91 106
… …
261sub freeze_mainloop { 276sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 277 return unless $TICK_WATCHER->is_active;
263 278
264 my $guard = Coro::guard { 279 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 280 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 281 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 282 $TICK_WATCHER->stop;
270 $guard 283 $guard
271} 284}
272 285
273=item cf::async { BLOCK } 286=item cf::async { BLOCK }
… …
344 357
345 $coro 358 $coro
346} 359}
347 360
348sub write_runtime { 361sub write_runtime {
362 my $guard = cf::lock_acquire "write_runtime";
363
349 my $runtime = cf::localdir . "/runtime"; 364 my $runtime = cf::localdir . "/runtime";
350 365
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 366 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 367 or return;
353 368
369 my $value = $cf::RUNTIME + 90 + 10;
354 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 370 # 10 is the runtime save interval, for a monotonic clock
371 # 60 allows for the watchdog to kill the server.
372
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 373 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 374 and return;
357 375
376 # always fsync - this file is important
358 aio_fsync $fh 377 aio_fsync $fh
359 and return; 378 and return;
360 379
361 close $fh 380 close $fh
362 or return; 381 or return;
… …
503our @CB_TYPE = (); # registry for type (cf-object class) based events 522our @CB_TYPE = (); # registry for type (cf-object class) based events
504our @CB_MAP = (); 523our @CB_MAP = ();
505 524
506my %attachment; 525my %attachment;
507 526
527sub cf::attachable::thawer_merge {
528 # simply override everything except _meta
529 local $_[0]{_meta};
530 %{$_[0]} = %{$_[1]};
531}
532
508sub _attach_cb($$$$) { 533sub _attach_cb($$$$) {
509 my ($registry, $event, $prio, $cb) = @_; 534 my ($registry, $event, $prio, $cb) = @_;
510 535
511 use sort 'stable'; 536 use sort 'stable';
512 537
… …
741 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
742 767
743 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
745 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
747 close $fh; 772 close $fh;
748 773
749 if (@$objs) { 774 if (@$objs) {
750 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 775 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
751 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
752 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
753 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
754 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
755 close $fh; 780 close $fh;
756 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
757 } 782 }
758 } else { 783 } else {
759 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
… …
951 976
952sub exists($) { 977sub exists($) {
953 my ($login) = @_; 978 my ($login) = @_;
954 979
955 $cf::PLAYER{$login} 980 $cf::PLAYER{$login}
956 or cf::sync_job { !aio_stat $login } 981 or cf::sync_job { !aio_stat path $login }
957} 982}
958 983
959sub find($) { 984sub find($) {
960 return $cf::PLAYER{$_[0]} || do { 985 return $cf::PLAYER{$_[0]} || do {
961 my $login = $_[0]; 986 my $login = $_[0];
… …
1007 1032
1008=cut 1033=cut
1009 1034
1010sub quit_character { 1035sub quit_character {
1011 my ($pl) = @_; 1036 my ($pl) = @_;
1037
1038 my $name = $pl->ob->name;
1012 1039
1013 $pl->{deny_save} = 1; 1040 $pl->{deny_save} = 1;
1014 $pl->password ("*"); # this should lock out the player until we nuked the dir 1041 $pl->password ("*"); # this should lock out the player until we nuked the dir
1015 1042
1016 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
… …
1021 my $path = playerdir $pl; 1048 my $path = playerdir $pl;
1022 my $temp = "$path~$cf::RUNTIME~deleting~"; 1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1023 aio_rename $path, $temp; 1050 aio_rename $path, $temp;
1024 delete $cf::PLAYER{$pl->ob->name}; 1051 delete $cf::PLAYER{$pl->ob->name};
1025 $pl->destroy; 1052 $pl->destroy;
1053
1054 my $prefix = qr<^~\Q$name\E/>;
1055
1056 # nuke player maps
1057 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1058
1026 IO::AIO::aio_rmtree $temp; 1059 IO::AIO::aio_rmtree $temp;
1060}
1061
1062=item $pl->kick
1063
1064Kicks a player out of the game. This destroys the connection.
1065
1066=cut
1067
1068sub kick {
1069 my ($pl, $kicker) = @_;
1070
1071 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1072 $pl->killer ("kicked");
1073 $pl->ns->destroy;
1027} 1074}
1028 1075
1029=item cf::player::list_logins 1076=item cf::player::list_logins
1030 1077
1031Returns am arrayref of all valid playernames in the system, can take a 1078Returns am arrayref of all valid playernames in the system, can take a
… …
1059=cut 1106=cut
1060 1107
1061sub maps($) { 1108sub maps($) {
1062 my ($pl) = @_; 1109 my ($pl) = @_;
1063 1110
1111 $pl = ref $pl ? $pl->ob->name : $pl;
1112
1064 my $files = aio_readdir playerdir $pl 1113 my $files = aio_readdir playerdir $pl
1065 or return; 1114 or return;
1066 1115
1067 my @paths; 1116 my @paths;
1068 1117
1069 for (@$files) { 1118 for (@$files) {
1070 utf8::decode $_; 1119 utf8::decode $_;
1071 next if /\.(?:pl|pst)$/; 1120 next if /\.(?:pl|pst)$/;
1072 next unless /^$PATH_SEP/o; 1121 next unless /^$PATH_SEP/o;
1073 1122
1074 s/\.map$//; 1123 push @paths, cf::map::normalise "~$pl/$_";
1075 push @paths, "~" . $pl->ob->name . "/" . $_;
1076 } 1124 }
1077 1125
1078 \@paths 1126 \@paths
1079} 1127}
1080 1128
… …
1107 1155
1108use Fcntl; 1156use Fcntl;
1109use Coro::AIO; 1157use Coro::AIO;
1110 1158
1111use overload 1159use overload
1112 '""' => \&as_string; 1160 '""' => \&as_string,
1161 fallback => 1;
1113 1162
1114our $MAX_RESET = 3600; 1163our $MAX_RESET = 3600;
1115our $DEFAULT_RESET = 3000; 1164our $DEFAULT_RESET = 3000;
1116 1165
1117sub generate_random_map { 1166sub generate_random_map {
1118 my ($self, $rmp) = @_; 1167 my ($self, $rmp) = @_;
1119
1120 # mit "rum" bekleckern, nicht 1168 # mit "rum" bekleckern, nicht
1121 $self->_create_random_map ( 1169 $self->_create_random_map (
1122 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1170 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1171 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1172 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1131 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1179 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132 (cf::region::find $rmp->{region}), $rmp->{custom} 1180 (cf::region::find $rmp->{region}), $rmp->{custom}
1133 ) 1181 )
1134} 1182}
1135 1183
1184=item cf::map->register ($regex, $prio)
1185
1186Register a handler for the map path matching the given regex at the
1187givne priority (higher is better, built-in handlers have priority 0, the
1188default).
1189
1190=cut
1191
1136sub register { 1192sub register {
1137 my (undef, $regex) = @_; 1193 my (undef, $regex, $prio) = @_;
1138 my $pkg = caller; 1194 my $pkg = caller;
1139 1195
1140 no strict; 1196 no strict;
1141 push @{"$pkg\::ISA"}, __PACKAGE__; 1197 push @{"$pkg\::ISA"}, __PACKAGE__;
1142 1198
1143 $EXT_MAP{$pkg} = qr<$regex>; 1199 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144} 1200}
1145 1201
1146# also paths starting with '/' 1202# also paths starting with '/'
1147$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1203$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1204
1205sub thawer_merge {
1206 my ($self, $merge) = @_;
1207
1208 # we have to keep some variables in memory intact
1209 local $self->{path};
1210 local $self->{load_path};
1211 local $self->{deny_save};
1212 local $self->{deny_reset};
1213
1214 $self->SUPER::thawer_merge ($merge);
1215}
1148 1216
1149sub normalise { 1217sub normalise {
1150 my ($path, $base) = @_; 1218 my ($path, $base) = @_;
1219
1220 $path = "$path"; # make sure its a string
1221
1222 $path =~ s/\.map$//;
1151 1223
1152 # map plan: 1224 # map plan:
1153 # 1225 #
1154 # /! non-realised random map exit (special hack!) 1226 # /! non-realised random map exit (special hack!)
1155 # {... are special paths that are not being touched 1227 # {... are special paths that are not being touched
… …
1183 1255
1184 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1256 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185 1257
1186 $path = normalise $path, $base; 1258 $path = normalise $path, $base;
1187 1259
1188 for my $pkg (keys %EXT_MAP) { 1260 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189 if ($path =~ $EXT_MAP{$pkg}) { 1261 if ($path =~ $EXT_MAP{$pkg}[1]) {
1190 my $self = bless cf::map::new, $pkg; 1262 my $self = bless cf::map::new, $pkg;
1191 $self->{path} = $path; $self->path ($path); 1263 $self->{path} = $path; $self->path ($path);
1192 $self->init; # pass $1 etc. 1264 $self->init; # pass $1 etc.
1193 return $self; 1265 return $self;
1194 } 1266 }
1195 } 1267 }
1196 1268
1197 Carp::carp "unable to resolve path '$path'."; 1269 Carp::carp "unable to resolve path '$path' (base '$base').";
1198 () 1270 ()
1199} 1271}
1200 1272
1201sub init { 1273sub init {
1202 my ($self) = @_; 1274 my ($self) = @_;
… …
1217 1289
1218# the original (read-only) location 1290# the original (read-only) location
1219sub load_path { 1291sub load_path {
1220 my ($self) = @_; 1292 my ($self) = @_;
1221 1293
1222 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1294 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1223} 1295}
1224 1296
1225# the temporary/swap location 1297# the temporary/swap location
1226sub save_path { 1298sub save_path {
1227 my ($self) = @_; 1299 my ($self) = @_;
1228 1300
1229 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1301 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1302 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1231} 1303}
1232 1304
1233# the unique path, undef == no special unique path 1305# the unique path, undef == no special unique path
1234sub uniq_path { 1306sub uniq_path {
1235 my ($self) = @_; 1307 my ($self) = @_;
… …
1249 1321
1250sub unlink_save { 1322sub unlink_save {
1251 my ($self) = @_; 1323 my ($self) = @_;
1252 1324
1253 utf8::encode (my $save = $self->save_path); 1325 utf8::encode (my $save = $self->save_path);
1254 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1326 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1327 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256} 1328}
1257 1329
1258sub load_header_from($) { 1330sub load_header_from($) {
1259 my ($self, $path) = @_; 1331 my ($self, $path) = @_;
1260 1332
1261 utf8::encode $path; 1333 utf8::encode $path;
1262 aio_open $path, O_RDONLY, 0 1334 #aio_open $path, O_RDONLY, 0
1263 or return; 1335 # or return;
1264 1336
1265 $self->_load_header ($path) 1337 $self->_load_header ($path)
1266 or return; 1338 or return;
1267 1339
1268 $self->{load_path} = $path; 1340 $self->{load_path} = $path;
1269 1341
1270 1 1342 1
1271} 1343}
1272 1344
1273sub load_orig { 1345sub load_header_orig {
1274 my ($self) = @_; 1346 my ($self) = @_;
1275 1347
1276 $self->load_header_from ($self->load_path) 1348 $self->load_header_from ($self->load_path)
1277} 1349}
1278 1350
1279sub load_temp { 1351sub load_header_temp {
1280 my ($self) = @_; 1352 my ($self) = @_;
1281 1353
1282 $self->load_header_from ($self->save_path) 1354 $self->load_header_from ($self->save_path)
1355}
1356
1357sub prepare_temp {
1358 my ($self) = @_;
1359
1360 $self->last_access ((delete $self->{last_access})
1361 || $cf::RUNTIME); #d#
1362 # safety
1363 $self->{instantiate_time} = $cf::RUNTIME
1364 if $self->{instantiate_time} > $cf::RUNTIME;
1365}
1366
1367sub prepare_orig {
1368 my ($self) = @_;
1369
1370 $self->{load_original} = 1;
1371 $self->{instantiate_time} = $cf::RUNTIME;
1372 $self->last_access ($cf::RUNTIME);
1373 $self->instantiate;
1283} 1374}
1284 1375
1285sub load_header { 1376sub load_header {
1286 my ($self) = @_; 1377 my ($self) = @_;
1287 1378
1288 if ($self->load_temp) { 1379 if ($self->load_header_temp) {
1289 $self->last_access ((delete $self->{last_access}) 1380 $self->prepare_temp;
1290 || $cf::RUNTIME); #d#
1291 # safety
1292 $self->{instantiate_time} = $cf::RUNTIME
1293 if $self->{instantiate_time} > $cf::RUNTIME;
1294 } else { 1381 } else {
1295 $self->load_orig 1382 $self->load_header_orig
1296 or return; 1383 or return;
1297 1384 $self->prepare_orig;
1298 $self->{load_original} = 1;
1299 $self->{instantiate_time} = $cf::RUNTIME;
1300 $self->last_access ($cf::RUNTIME);
1301 $self->instantiate;
1302 } 1385 }
1303 1386
1304 1 1387 1
1305} 1388}
1306 1389
… …
1320 $map->{last_save} = $cf::RUNTIME; 1403 $map->{last_save} = $cf::RUNTIME;
1321 1404
1322 $map->load_header 1405 $map->load_header
1323 or return; 1406 or return;
1324 1407
1325 if ($map->should_reset) { 1408 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1409 # doing this can freeze the server in a sync job, obviously
1410 #$cf::WAIT_FOR_TICK->wait;
1326 $map->reset; 1411 $map->reset;
1327 undef $guard; 1412 undef $guard;
1328 $map = find $path 1413 return find $path;
1329 or return;
1330 } 1414 }
1331 1415
1332 $cf::MAP{$path} = $map 1416 $cf::MAP{$path} = $map
1333 } 1417 }
1334} 1418}
1419
1420sub pre_load { }
1421sub post_load { }
1335 1422
1336sub load { 1423sub load {
1337 my ($self) = @_; 1424 my ($self) = @_;
1338 1425
1426 local $self->{deny_reset} = 1; # loading can take a long time
1427
1339 my $path = $self->{path}; 1428 my $path = $self->{path};
1340 my $guard = cf::lock_acquire "map_load:$path"; 1429 my $guard = cf::lock_acquire "map_load:$path";
1341 1430
1342 return if $self->in_memory != cf::MAP_SWAPPED; 1431 return if $self->in_memory != cf::MAP_SWAPPED;
1343 1432
1344 $self->in_memory (cf::MAP_LOADING); 1433 $self->in_memory (cf::MAP_LOADING);
1345 1434
1346 $self->alloc; 1435 $self->alloc;
1436
1437 $self->pre_load;
1438
1347 $self->_load_objects ($self->{load_path}, 1) 1439 $self->_load_objects ($self->{load_path}, 1)
1348 or return; 1440 or return;
1349 1441
1350 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1442 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1351 if delete $self->{load_original}; 1443 if delete $self->{load_original};
… …
1373 unless $self->difficulty; 1465 unless $self->difficulty;
1374 Coro::cede; 1466 Coro::cede;
1375 $self->activate; 1467 $self->activate;
1376 } 1468 }
1377 1469
1470 $self->post_load;
1471
1378 $self->in_memory (cf::MAP_IN_MEMORY); 1472 $self->in_memory (cf::MAP_IN_MEMORY);
1379} 1473}
1380 1474
1381sub customise_for { 1475sub customise_for {
1382 my ($self, $ob) = @_; 1476 my ($self, $ob) = @_;
… …
1422 1516
1423 cf::sync_job { $map->load }; 1517 cf::sync_job { $map->load };
1424} 1518}
1425 1519
1426our %MAP_PREFETCH; 1520our %MAP_PREFETCH;
1427our $MAP_PREFETCHER = Coro::async { 1521our $MAP_PREFETCHER = undef;
1428 while () {
1429 for my $path (keys %MAP_PREFETCH) {
1430 my $map = find $path
1431 or next;
1432 $map->load;
1433
1434 delete $MAP_PREFETCH{$path};
1435 }
1436 Coro::schedule;
1437 }
1438};
1439 1522
1440sub find_async { 1523sub find_async {
1441 my ($path, $origin) = @_; 1524 my ($path, $origin) = @_;
1442 1525
1443 $path = normalise $path, $origin && $origin->{path}; 1526 $path = normalise $path, $origin && $origin->{path};
1444 1527
1445 if (my $map = $cf::MAP{$path}) { 1528 if (my $map = $cf::MAP{$path}) {
1446 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1529 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1447 } 1530 }
1448 1531
1449 $MAP_PREFETCH{$path} = 0; 1532 undef $MAP_PREFETCH{$path};
1533 $MAP_PREFETCHER ||= cf::async {
1534 while (%MAP_PREFETCH) {
1535 for my $path (keys %MAP_PREFETCH) {
1536 my $map = find $path
1537 or next;
1538 $map->load;
1539
1540 delete $MAP_PREFETCH{$path};
1541 }
1542 }
1543 undef $MAP_PREFETCHER;
1544 };
1450 $MAP_PREFETCHER->ready; 1545 $MAP_PREFETCHER->prio (6);
1451 1546
1452 () 1547 ()
1453} 1548}
1454 1549
1455sub save { 1550sub save {
… …
1515 my ($self) = @_; 1610 my ($self) = @_;
1516 1611
1517 $self->reset_at <= $cf::RUNTIME 1612 $self->reset_at <= $cf::RUNTIME
1518} 1613}
1519 1614
1520sub rename {
1521 my ($self, $new_path) = @_;
1522
1523 normalise $new_path;
1524
1525 $self->unlink_save;
1526
1527 delete $cf::MAP{$self->path};
1528 $self->{path} = $new_path; $self->path ($self->{path});
1529 $cf::MAP{$self->path} = $self;
1530
1531 $self->save;
1532}
1533
1534sub reset { 1615sub reset {
1535 my ($self) = @_; 1616 my ($self) = @_;
1536 1617
1537 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1618 my $lock = cf::lock_acquire "map_data:$self->{path}";
1538 1619
1539 return if $self->players; 1620 return if $self->players;
1540 return if $self->isa ("ext::map_per_player");#d# 1621 return if $self->isa ("ext::map_per_player");#d#
1541 1622
1542 warn "resetting map ", $self->path;#d# 1623 warn "resetting map ", $self->path;#d#
1543 1624
1625 $self->in_memory (cf::MAP_SWAPPED);
1626
1627 # need to save uniques path
1628 unless ($self->{deny_save}) {
1629 my $uniq = $self->uniq_path; utf8::encode $uniq;
1630
1631 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1632 if $uniq;
1633 }
1634
1544 delete $cf::MAP{$self->path}; 1635 delete $cf::MAP{$self->path};
1545 1636
1546 $self->in_memory (cf::MAP_SWAPPED);
1547 $self->clear; 1637 $self->clear;
1548 1638
1549 $_->clear_links_to ($self) for values %cf::MAP; 1639 $_->clear_links_to ($self) for values %cf::MAP;
1550 1640
1551 $self->unlink_save; 1641 $self->unlink_save;
… …
1555my $nuke_counter = "aaaa"; 1645my $nuke_counter = "aaaa";
1556 1646
1557sub nuke { 1647sub nuke {
1558 my ($self) = @_; 1648 my ($self) = @_;
1559 1649
1650 delete $cf::MAP{$self->path};
1651
1652 $self->unlink_save;
1653
1654 bless $self, "cf::map";
1655 delete $self->{deny_reset};
1560 $self->{deny_save} = 1; 1656 $self->{deny_save} = 1;
1561 $self->reset_timeout (1); 1657 $self->reset_timeout (1);
1562 $self->rename ("{nuke}/" . ($nuke_counter++)); 1658 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659
1660 $cf::MAP{$self->path} = $self;
1661
1563 $self->reset; # polite request, might not happen 1662 $self->reset; # polite request, might not happen
1564} 1663}
1565 1664
1566=item cf::map::unique_maps 1665=item cf::map::unique_maps
1567 1666
… …
1579 for (@$files) { 1678 for (@$files) {
1580 utf8::decode $_; 1679 utf8::decode $_;
1581 next if /\.pst$/; 1680 next if /\.pst$/;
1582 next unless /^$PATH_SEP/o; 1681 next unless /^$PATH_SEP/o;
1583 1682
1584 s/\.map$//; 1683 push @paths, cf::map::normalise $_;
1585 push @paths, $_;
1586 } 1684 }
1587 1685
1588 \@paths 1686 \@paths
1589} 1687}
1590 1688
… …
1684=cut 1782=cut
1685 1783
1686sub link_map { 1784sub link_map {
1687 unless ($LINK_MAP) { 1785 unless ($LINK_MAP) {
1688 $LINK_MAP = cf::map::find "{link}" 1786 $LINK_MAP = cf::map::find "{link}"
1689 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1787 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690 $LINK_MAP->load; 1788 $LINK_MAP->load;
1691 } 1789 }
1692 1790
1693 $LINK_MAP 1791 $LINK_MAP
1694} 1792}
… …
1701 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1799 return if UNIVERSAL::isa $self->map, "ext::map_link";
1702 1800
1703 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1801 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704 if $self->map; 1802 if $self->map;
1705 1803
1706 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1804 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1707} 1805}
1708 1806
1709sub cf::object::player::leave_link { 1807sub cf::object::player::leave_link {
1710 my ($self, $map, $x, $y) = @_; 1808 my ($self, $map, $x, $y) = @_;
1711 1809
… …
1733 $map->load; 1831 $map->load;
1734 $map->load_diag; 1832 $map->load_diag;
1735 1833
1736 return unless $self->contr->active; 1834 return unless $self->contr->active;
1737 $self->activate_recursive; 1835 $self->activate_recursive;
1836
1837 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738 $self->enter_map ($map, $x, $y); 1838 $self->enter_map ($map, $x, $y);
1739} 1839}
1740 1840
1741cf::player->attach ( 1841cf::player->attach (
1742 on_logout => sub { 1842 on_logout => sub {
… …
1755 # try to abort aborted map switching on player login :) 1855 # try to abort aborted map switching on player login :)
1756 # should happen only on crashes 1856 # should happen only on crashes
1757 if ($pl->ob->{_link_pos}) { 1857 if ($pl->ob->{_link_pos}) {
1758 $pl->ob->enter_link; 1858 $pl->ob->enter_link;
1759 (async { 1859 (async {
1760 # we need this sleep as the login has a concurrent enter_exit running
1761 # and this sleep increases chances of the player not ending up in scorn
1762 $pl->ob->reply (undef, 1860 $pl->ob->reply (undef,
1763 "There was an internal problem at your last logout, " 1861 "There was an internal problem at your last logout, "
1764 . "the server will try to bring you to your intended destination in a second.", 1862 . "the server will try to bring you to your intended destination in a second.",
1765 cf::NDI_RED); 1863 cf::NDI_RED);
1864 # we need this sleep as the login has a concurrent enter_exit running
1865 # and this sleep increases chances of the player not ending up in scorn
1766 Coro::Timer::sleep 1; 1866 Coro::Timer::sleep 1;
1767 $pl->ob->leave_link; 1867 $pl->ob->leave_link;
1768 })->prio (2); 1868 })->prio (2);
1769 } 1869 }
1770 }, 1870 },
… …
1778 my ($self, $path, $x, $y) = @_; 1878 my ($self, $path, $x, $y) = @_;
1779 1879
1780 $self->enter_link; 1880 $self->enter_link;
1781 1881
1782 (async { 1882 (async {
1883 my $map = eval {
1783 my $map = cf::map::find $path; 1884 my $map = cf::map::find $path;
1784 $map = $map->customise_for ($self) if $map; 1885 $map = $map->customise_for ($self) if $map;
1785 1886 $map
1786# warn "entering ", $map->path, " at ($x, $y)\n" 1887 } or
1787# if $map;
1788
1789 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1888 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1790 1889
1791 $self->leave_link ($map, $x, $y); 1890 $self->leave_link ($map, $x, $y);
1792 })->prio (1); 1891 })->prio (1);
1793} 1892}
1794 1893
… …
1798 1897
1799sub parse_random_map_params { 1898sub parse_random_map_params {
1800 my ($spec) = @_; 1899 my ($spec) = @_;
1801 1900
1802 my $rmp = { # defaults 1901 my $rmp = { # defaults
1803 xsize => 10, 1902 xsize => (cf::rndm 15, 40),
1804 ysize => 10, 1903 ysize => (cf::rndm 15, 40),
1904 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1905 #layout => string,
1805 }; 1906 };
1806 1907
1807 for (split /\n/, $spec) { 1908 for (split /\n/, $spec) {
1808 my ($k, $v) = split /\s+/, $_, 2; 1909 my ($k, $v) = split /\s+/, $_, 2;
1809 1910
… …
1813 $rmp 1914 $rmp
1814} 1915}
1815 1916
1816sub prepare_random_map { 1917sub prepare_random_map {
1817 my ($exit) = @_; 1918 my ($exit) = @_;
1919
1920 my $guard = cf::lock_acquire "exit_prepare:$exit";
1818 1921
1819 # all this does is basically replace the /! path by 1922 # all this does is basically replace the /! path by
1820 # a new random map path (?random/...) with a seed 1923 # a new random map path (?random/...) with a seed
1821 # that depends on the exit object 1924 # that depends on the exit object
1822 1925
1823 my $rmp = parse_random_map_params $exit->msg; 1926 my $rmp = parse_random_map_params $exit->msg;
1824 1927
1825 if ($exit->map) { 1928 if ($exit->map) {
1826 $rmp->{region} = $exit->map->region_name; 1929 $rmp->{region} = $exit->region->name;
1827 $rmp->{origin_map} = $exit->map->path; 1930 $rmp->{origin_map} = $exit->map->path;
1828 $rmp->{origin_x} = $exit->x; 1931 $rmp->{origin_x} = $exit->x;
1829 $rmp->{origin_y} = $exit->y; 1932 $rmp->{origin_y} = $exit->y;
1830 } 1933 }
1831 1934
1832 $rmp->{random_seed} ||= $exit->random_seed; 1935 $rmp->{random_seed} ||= $exit->random_seed;
1833 1936
1834 my $data = cf::to_json $rmp; 1937 my $data = cf::to_json $rmp;
1835 my $md5 = Digest::MD5::md5_hex $data; 1938 my $md5 = Digest::MD5::md5_hex $data;
1939 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1836 1940
1837 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1941 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838 aio_write $fh, 0, (length $data), $data, 0; 1942 aio_write $fh, 0, (length $data), $data, 0;
1943 undef $fh;
1944 aio_rename "$meta~", $meta;
1839 1945
1840 $exit->slaying ("?random/$md5"); 1946 $exit->slaying ("?random/$md5");
1841 $exit->msg (undef); 1947 $exit->msg (undef);
1842 } 1948 }
1843} 1949}
1844 1950
1845sub cf::object::player::enter_exit { 1951sub cf::object::player::enter_exit {
1846 my ($self, $exit) = @_; 1952 my ($self, $exit) = @_;
1847 1953
1848 return unless $self->type == cf::PLAYER; 1954 return unless $self->type == cf::PLAYER;
1955
1956 if ($exit->slaying eq "/!") {
1957 #TODO: this should de-fi-ni-te-ly not be a sync-job
1958 cf::sync_job { prepare_random_map $exit };
1959 }
1960
1961 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962 my $hp = $exit->stats->hp;
1963 my $sp = $exit->stats->sp;
1849 1964
1850 $self->enter_link; 1965 $self->enter_link;
1851 1966
1852 (async { 1967 (async {
1853 $self->deactivate_recursive; # just to be sure 1968 $self->deactivate_recursive; # just to be sure
1854 unless (eval { 1969 unless (eval {
1855 prepare_random_map $exit 1970 $self->goto ($slaying, $hp, $sp);
1856 if $exit->slaying eq "/!";
1857
1858 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1859 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1860 1971
1861 1; 1972 1;
1862 }) { 1973 }) {
1863 $self->message ("Something went wrong deep within the crossfire server. " 1974 $self->message ("Something went wrong deep within the crossfire server. "
1864 . "I'll try to bring you back to the map you were before. " 1975 . "I'll try to bring you back to the map you were before. "
… …
1925 # get handled first 2036 # get handled first
1926 my $queue = delete $ns->{query_queue} 2037 my $queue = delete $ns->{query_queue}
1927 or return; # be conservative, not sure how that can happen, but we saw a crash here 2038 or return; # be conservative, not sure how that can happen, but we saw a crash here
1928 2039
1929 (shift @$queue)->[1]->($msg); 2040 (shift @$queue)->[1]->($msg);
2041 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930 2042
1931 push @{ $ns->{query_queue} }, @$queue; 2043 push @{ $ns->{query_queue} }, @$queue;
1932 2044
1933 if (@{ $ns->{query_queue} } == @$queue) { 2045 if (@{ $ns->{query_queue} } == @$queue) {
1934 if (@$queue) { 2046 if (@$queue) {
… …
2095The parameter C<$family> should best start with the name of the extension 2207The parameter C<$family> should best start with the name of the extension
2096using it, it should be unique. 2208using it, it should be unique.
2097 2209
2098=over 4 2210=over 4
2099 2211
2100=item $hashref = cf::db_get $family
2101
2102Return a hashref for use by the extension C<$family>, which can be
2103modified. After modifications, you have to call C<cf::db_dirty> or
2104C<cf::db_sync>.
2105
2106=item $value = cf::db_get $family => $key 2212=item $value = cf::db_get $family => $key
2107 2213
2108Returns a single value from the database 2214Returns a single value from the database.
2109
2110=item cf::db_put $family => $hashref
2111
2112Stores the given family hashref into the database. Updates are delayed, if
2113you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114 2215
2115=item cf::db_put $family => $key => $value 2216=item cf::db_put $family => $key => $value
2116 2217
2117Stores the given C<$value> in the family hash. Updates are delayed, if you 2218Stores the given C<$value> in the family.
2118want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120=item cf::db_dirty
2121
2122Marks the database as dirty, to be updated at a later time.
2123
2124=item cf::db_sync
2125
2126Immediately write the database to disk I<if it is dirty>.
2127 2219
2128=cut 2220=cut
2129 2221
2130our $DB; 2222our $DB;
2131 2223
2132{ 2224sub db_init {
2225 unless ($DB) {
2226 $DB = BDB::db_create $DB_ENV;
2227
2228 cf::sync_job {
2229 eval {
2230 $DB->set_flags (BDB::CHKSUM);
2231
2232 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234 cf::cleanup "db_open(db): $!" if $!;
2235 };
2236 cf::cleanup "db_open(db): $@" if $@;
2237 };
2238
2133 my $path = cf::localdir . "/database.pst"; 2239 my $path = cf::localdir . "/database.pst";
2240 if (stat $path) {
2241 cf::sync_job {
2242 my $pst = Storable::retrieve $path;
2134 2243
2135 sub db_load() { 2244 cf::db_put (board => data => $pst->{board});
2136 $DB = stat $path ? Storable::retrieve $path : { }; 2245 cf::db_put (guildrules => data => $pst->{guildrules});
2137 } 2246 cf::db_put (rent => balance => $pst->{rent}{balance});
2247 BDB::db_env_txn_checkpoint $DB_ENV;
2138 2248
2139 my $pid; 2249 unlink $path;
2140
2141 sub db_save() {
2142 waitpid $pid, 0 if $pid;
2143 if (0 == ($pid = fork)) {
2144 $DB->{_meta}{version} = 1;
2145 Storable::nstore $DB, "$path~";
2146 rename "$path~", $path;
2147 cf::_exit 0 if defined $pid;
2148 } 2250 };
2149 }
2150
2151 my $dirty;
2152
2153 sub db_sync() {
2154 db_save if $dirty;
2155 undef $dirty;
2156 }
2157
2158 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159 db_sync;
2160 });
2161
2162 sub db_dirty() {
2163 $dirty = 1;
2164 $idle->start;
2165 }
2166
2167 sub db_get($;$) {
2168 @_ >= 2
2169 ? $DB->{$_[0]}{$_[1]}
2170 : ($DB->{$_[0]} ||= { })
2171 }
2172
2173 sub db_put($$;$) {
2174 if (@_ >= 3) {
2175 $DB->{$_[0]}{$_[1]} = $_[2];
2176 } else {
2177 $DB->{$_[0]} = $_[1];
2178 }
2179 db_dirty;
2180 }
2181
2182 cf::global->attach (
2183 prio => 10000,
2184 on_cleanup => sub {
2185 db_sync;
2186 }, 2251 }
2187 ); 2252 }
2253}
2254
2255sub db_get($$) {
2256 my $key = "$_[0]/$_[1]";
2257
2258 cf::sync_job {
2259 BDB::db_get $DB, undef, $key, my $data;
2260
2261 $! ? ()
2262 : Compress::LZF::sthaw $data
2263 }
2264}
2265
2266sub db_put($$$) {
2267 BDB::dbreq_pri 4;
2268 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2188} 2269}
2189 2270
2190############################################################################# 2271#############################################################################
2191# the server's main() 2272# the server's init and main functions
2273
2274sub load_faces {
2275 my $path = sprintf "%s/faces", cf::datadir;
2276
2277 warn "loading faces from $path\n";
2278
2279 my $faces;
2280 0 < aio_load $path, $faces
2281 or die "$path: $!";
2282
2283 Coro::cede;
2284 $faces = Storable::thaw $faces;
2285 Coro::cede;
2286
2287 while (my ($face, $info) = each %$faces) {
2288 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2289 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2290 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2291 Coro::cede;
2292 }
2293
2294 1
2295}
2296
2297sub reload_resources {
2298 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2299 or die "unable to load regions file\n";#d#
2300 load_faces
2301 or die "unable to load faces\n";#d#
2302}
2303
2304sub init {
2305 reload_resources;
2306}
2192 2307
2193sub cfg_load { 2308sub cfg_load {
2194 open my $fh, "<:utf8", cf::confdir . "/config" 2309 open my $fh, "<:utf8", cf::confdir . "/config"
2195 or return; 2310 or return;
2196 2311
… …
2213 2328
2214sub main { 2329sub main {
2215 # we must not ever block the main coroutine 2330 # we must not ever block the main coroutine
2216 local $Coro::idle = sub { 2331 local $Coro::idle = sub {
2217 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2332 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2333 (async {
2218 async { Event::one_event }; 2334 Event::one_event;
2335 })->prio (Coro::PRIO_MAX);
2219 }; 2336 };
2220 2337
2221 cfg_load; 2338 cfg_load;
2222 db_load; 2339 db_init;
2223 load_extensions; 2340 load_extensions;
2341
2342 $TICK_WATCHER->start;
2224 Event::loop; 2343 Event::loop;
2225} 2344}
2226 2345
2227############################################################################# 2346#############################################################################
2228# initialisation and cleanup 2347# initialisation and cleanup
2229 2348
2230# install some emergency cleanup handlers 2349# install some emergency cleanup handlers
2231BEGIN { 2350BEGIN {
2232 for my $signal (qw(INT HUP TERM)) { 2351 for my $signal (qw(INT HUP TERM)) {
2233 Event->signal ( 2352 Event->signal (
2353 reentrant => 0,
2234 data => WF_AUTOCANCEL, 2354 data => WF_AUTOCANCEL,
2235 signal => $signal, 2355 signal => $signal,
2356 prio => 0,
2236 cb => sub { 2357 cb => sub {
2237 cf::cleanup "SIG$signal"; 2358 cf::cleanup "SIG$signal";
2238 }, 2359 },
2239 ); 2360 );
2240 } 2361 }
2241} 2362}
… …
2262 my $map = $cf::MAP{$path} or next; 2383 my $map = $cf::MAP{$path} or next;
2263 $map->valid or next; 2384 $map->valid or next;
2264 $map->save; 2385 $map->save;
2265 } 2386 }
2266 warn "end emergency map save\n"; 2387 warn "end emergency map save\n";
2388
2389 warn "begin emergency database checkpoint\n";
2390 BDB::db_env_txn_checkpoint $DB_ENV;
2391 warn "end emergency database checkpoint\n";
2267 }; 2392 };
2268 2393
2269 warn "leave emergency perl save\n"; 2394 warn "leave emergency perl save\n";
2395}
2396
2397sub post_cleanup {
2398 my ($make_core) = @_;
2399
2400 warn Carp::longmess "post_cleanup backtrace"
2401 if $make_core;
2270} 2402}
2271 2403
2272sub reload() { 2404sub reload() {
2273 # can/must only be called in main 2405 # can/must only be called in main
2274 if ($Coro::current != $Coro::main) { 2406 if ($Coro::current != $Coro::main) {
2275 warn "can only reload from main coroutine\n"; 2407 warn "can only reload from main coroutine";
2276 return; 2408 return;
2277 } 2409 }
2278 2410
2279 warn "reloading..."; 2411 warn "reloading...";
2280 2412
2281 warn "freezing server"; 2413 warn "entering sync_job";
2282 my $guard = freeze_mainloop; 2414
2415 cf::sync_job {
2416 cf::write_runtime; # external watchdog should not bark
2283 cf::emergency_save; 2417 cf::emergency_save;
2418 cf::write_runtime; # external watchdog should not bark
2284 2419
2285 warn "sync database to disk"; 2420 warn "syncing database to disk";
2286 cf::db_sync; 2421 BDB::db_env_txn_checkpoint $DB_ENV;
2287 IO::AIO::flush;
2288 2422
2289 eval {
2290 # if anything goes wrong in here, we should simply crash as we already saved 2423 # if anything goes wrong in here, we should simply crash as we already saved
2291 2424
2292 warn "cancel all watchers"; 2425 warn "cancelling all WF_AUTOCANCEL watchers";
2293 for (Event::all_watchers) { 2426 for (Event::all_watchers) {
2294 $_->cancel if $_->data & WF_AUTOCANCEL; 2427 $_->cancel if $_->data & WF_AUTOCANCEL;
2295 } 2428 }
2296 2429
2430 warn "flushing outstanding aio requests";
2431 for (;;) {
2432 BDB::flush;
2433 IO::AIO::flush;
2434 Coro::cede;
2435 last unless IO::AIO::nreqs || BDB::nreqs;
2436 warn "iterate...";
2437 }
2438
2439 ++$RELOAD;
2440
2297 warn "cancel all extension coros"; 2441 warn "cancelling all extension coros";
2298 $_->cancel for values %EXT_CORO; 2442 $_->cancel for values %EXT_CORO;
2299 %EXT_CORO = (); 2443 %EXT_CORO = ();
2300 2444
2301 warn "remove commands"; 2445 warn "removing commands";
2302 %COMMAND = (); 2446 %COMMAND = ();
2303 2447
2304 warn "remove ext commands"; 2448 warn "removing ext commands";
2305 %EXTCMD = (); 2449 %EXTCMD = ();
2306 2450
2307 warn "unload/nuke all extensions"; 2451 warn "unloading/nuking all extensions";
2308 for my $pkg (@EXTS) { 2452 for my $pkg (@EXTS) {
2309 warn "... unloading $pkg"; 2453 warn "... unloading $pkg";
2310 2454
2311 if (my $cb = $pkg->can ("unload")) { 2455 if (my $cb = $pkg->can ("unload")) {
2312 eval { 2456 eval {
… …
2317 2461
2318 warn "... nuking $pkg"; 2462 warn "... nuking $pkg";
2319 Symbol::delete_package $pkg; 2463 Symbol::delete_package $pkg;
2320 } 2464 }
2321 2465
2322 warn "unload all perl modules loaded from $LIBDIR"; 2466 warn "unloading all perl modules loaded from $LIBDIR";
2323 while (my ($k, $v) = each %INC) { 2467 while (my ($k, $v) = each %INC) {
2324 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2468 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325 2469
2326 warn "removing <$k>"; 2470 warn "... unloading $k";
2327 delete $INC{$k}; 2471 delete $INC{$k};
2328 2472
2329 $k =~ s/\.pm$//; 2473 $k =~ s/\.pm$//;
2330 $k =~ s/\//::/g; 2474 $k =~ s/\//::/g;
2331 2475
… …
2334 } 2478 }
2335 2479
2336 Symbol::delete_package $k; 2480 Symbol::delete_package $k;
2337 } 2481 }
2338 2482
2339 warn "get rid of safe::, as good as possible"; 2483 warn "getting rid of safe::, as good as possible";
2340 Symbol::delete_package "safe::$_" 2484 Symbol::delete_package "safe::$_"
2341 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2485 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342 2486
2343 warn "unload cf.pm \"a bit\""; 2487 warn "unloading cf.pm \"a bit\"";
2344 delete $INC{"cf.pm"}; 2488 delete $INC{"cf.pm"};
2345 2489
2346 # don't, removes xs symbols, too, 2490 # don't, removes xs symbols, too,
2347 # and global variables created in xs 2491 # and global variables created in xs
2348 #Symbol::delete_package __PACKAGE__; 2492 #Symbol::delete_package __PACKAGE__;
2349 2493
2494 warn "unload completed, starting to reload now";
2495
2350 warn "reloading cf.pm"; 2496 warn "reloading cf.pm";
2351 require cf; 2497 require cf;
2352 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2498 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353 2499
2354 warn "load config and database again"; 2500 warn "loading config and database again";
2355 cf::cfg_load; 2501 cf::cfg_load;
2356 cf::db_load;
2357 2502
2358 warn "load extensions"; 2503 warn "loading extensions";
2359 cf::load_extensions; 2504 cf::load_extensions;
2360 2505
2361 warn "reattach attachments to objects/players"; 2506 warn "reattaching attachments to objects/players";
2362 _global_reattach; 2507 _global_reattach; # objects, sockets
2363 warn "reattach attachments to maps"; 2508 warn "reattaching attachments to maps";
2364 reattach $_ for values %MAP; 2509 reattach $_ for values %MAP;
2365 }; 2510 warn "reattaching attachments to players";
2511 reattach $_ for values %PLAYER;
2366 2512
2367 if ($@) { 2513 warn "loading reloadable resources";
2514 reload_resources;
2515
2516 warn "leaving sync_job";
2517
2518 1
2519 } or do {
2368 warn $@; 2520 warn $@;
2369 warn "error while reloading, exiting."; 2521 warn "error while reloading, exiting.";
2370 exit 1; 2522 exit 1;
2371 } 2523 };
2372 2524
2373 warn "reloaded"; 2525 warn "reloaded";
2374}; 2526};
2375 2527
2528our $RELOAD_WATCHER; # used only during reload
2529
2376register_command "reload" => sub { 2530register_command "reload" => sub {
2377 my ($who, $arg) = @_; 2531 my ($who, $arg) = @_;
2378 2532
2379 if ($who->flag (FLAG_WIZ)) { 2533 if ($who->flag (FLAG_WIZ)) {
2380 $who->message ("start of reload."); 2534 $who->message ("reloading server.");
2535
2536 # doing reload synchronously and two reloads happen back-to-back,
2537 # coro crashes during coro_state_free->destroy here.
2538
2539 $RELOAD_WATCHER ||= Event->timer (
2540 reentrant => 0,
2541 after => 0,
2542 data => WF_AUTOCANCEL,
2543 cb => sub {
2381 reload; 2544 reload;
2382 $who->message ("end of reload."); 2545 undef $RELOAD_WATCHER;
2546 },
2547 );
2383 } 2548 }
2384}; 2549};
2385 2550
2386unshift @INC, $LIBDIR; 2551unshift @INC, $LIBDIR;
2552
2553my $bug_warning = 0;
2387 2554
2388$TICK_WATCHER = Event->timer ( 2555$TICK_WATCHER = Event->timer (
2389 reentrant => 0, 2556 reentrant => 0,
2557 parked => 1,
2390 prio => 0, 2558 prio => 0,
2391 at => $NEXT_TICK || $TICK, 2559 at => $NEXT_TICK || $TICK,
2392 data => WF_AUTOCANCEL, 2560 data => WF_AUTOCANCEL,
2393 cb => sub { 2561 cb => sub {
2562 if ($Coro::current != $Coro::main) {
2563 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2564 unless ++$bug_warning > 10;
2565 return;
2566 }
2567
2394 $NOW = Event::time; 2568 $NOW = Event::time;
2395 2569
2396 cf::server_tick; # one server iteration 2570 cf::server_tick; # one server iteration
2397 $RUNTIME += $TICK; 2571 $RUNTIME += $TICK;
2398 $NEXT_TICK += $TICK; 2572 $NEXT_TICK += $TICK;
2399 2573
2574 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2575 $NEXT_RUNTIME_WRITE = $NOW + 10;
2576 Coro::async_pool {
2577 write_runtime
2578 or warn "ERROR: unable to write runtime file: $!";
2579 };
2580 }
2581
2400 $WAIT_FOR_TICK->broadcast; 2582 $WAIT_FOR_TICK->broadcast;
2401 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2583 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2584
2585# my $AFTER = Event::time;
2586# warn $AFTER - $NOW;#d#
2402 2587
2403 # if we are delayed by four ticks or more, skip them all 2588 # if we are delayed by four ticks or more, skip them all
2404 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2589 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2405 2590
2406 $TICK_WATCHER->at ($NEXT_TICK); 2591 $TICK_WATCHER->at ($NEXT_TICK);
2407 $TICK_WATCHER->start; 2592 $TICK_WATCHER->start;
2408 }, 2593 },
2409); 2594);
2410 2595
2596{
2597 BDB::max_poll_time $TICK * 0.1;
2598 $BDB_POLL_WATCHER = Event->io (
2599 reentrant => 0,
2600 fd => BDB::poll_fileno,
2601 poll => 'r',
2602 prio => 0,
2603 data => WF_AUTOCANCEL,
2604 cb => \&BDB::poll_cb,
2605 );
2606 BDB::min_parallel 8;
2607
2608 BDB::set_sync_prepare {
2609 my $status;
2610 my $current = $Coro::current;
2611 (
2612 sub {
2613 $status = $!;
2614 $current->ready; undef $current;
2615 },
2616 sub {
2617 Coro::schedule while defined $current;
2618 $! = $status;
2619 },
2620 )
2621 };
2622
2623 unless ($DB_ENV) {
2624 $DB_ENV = BDB::db_env_create;
2625
2626 cf::sync_job {
2627 eval {
2628 BDB::db_env_open
2629 $DB_ENV,
2630 $BDB_ENV_DIR,
2631 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2632 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2633 0666;
2634
2635 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2636
2637 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2638 $DB_ENV->set_lk_detect;
2639 };
2640
2641 cf::cleanup "db_env_open(db): $@" if $@;
2642 };
2643 }
2644}
2645
2646{
2647 IO::AIO::min_parallel 8;
2648
2649 undef $Coro::AIO::WATCHER;
2411IO::AIO::max_poll_time $TICK * 0.2; 2650 IO::AIO::max_poll_time $TICK * 0.1;
2412
2413$AIO_POLL_WATCHER = Event->io ( 2651 $AIO_POLL_WATCHER = Event->io (
2414 fd => IO::AIO::poll_fileno, 2652 reentrant => 0,
2415 poll => 'r',
2416 prio => 5,
2417 data => WF_AUTOCANCEL,
2418 cb => \&IO::AIO::poll_cb,
2419);
2420
2421$WRITE_RUNTIME_WATCHER = Event->timer (
2422 data => WF_AUTOCANCEL, 2653 data => WF_AUTOCANCEL,
2423 after => 0, 2654 fd => IO::AIO::poll_fileno,
2424 interval => 10, 2655 poll => 'r',
2425 cb => sub { 2656 prio => 6,
2426 (Coro::unblock_sub { 2657 cb => \&IO::AIO::poll_cb,
2427 write_runtime 2658 );
2428 or warn "ERROR: unable to write runtime file: $!"; 2659}
2429 })->();
2430 },
2431);
2432 2660
2433END { cf::emergency_save } 2661END { cf::emergency_save }
2434 2662
24351 26631
2436 2664

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