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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.166 by root, Sat Jan 13 23:06:13 2007 UTC vs.
Revision 1.215 by root, Thu Feb 15 03:19:02 2007 UTC

… …
8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
20use Data::Dumper; 21use Data::Dumper;
21use Digest::MD5; 22use Digest::MD5;
22use Fcntl; 23use Fcntl;
23use IO::AIO 2.32 (); 24use IO::AIO 2.32 ();
24use YAML::Syck (); 25use YAML::Syck ();
25use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26 30
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
28 32
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 34
… …
44our @EVENT; 48our @EVENT;
45our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
46 50
47our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 52our $TICK_WATCHER;
53our $AIO_POLL_WATCHER;
54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49our $NEXT_TICK; 55our $NEXT_TICK;
50our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
51 61
52our %CFG; 62our %CFG;
53 63
54our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
55our $RUNTIME; 65our $RUNTIME;
56 66
57our %PLAYER; # all users 67our %PLAYER; # all users
58our %MAP; # all maps 68our %MAP; # all maps
59our $LINK_MAP; # the special {link} map, which is always available 69our $LINK_MAP; # the special {link} map, which is always available
60our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
61 72
62our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64 75
65# used to convert map paths into valid unix filenames by replacing / by ∕ 76# used to convert map paths into valid unix filenames by replacing / by ∕
… …
78mkdir cf::localdir; 89mkdir cf::localdir;
79mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
80mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
81mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
82mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
83 95
84our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
97
98sub cf::map::normalise;
85 99
86############################################################################# 100#############################################################################
87 101
88=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
89 103
… …
257} 271}
258 272
259sub freeze_mainloop { 273sub freeze_mainloop {
260 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
261 275
262 my $guard = Coro::guard { $TICK_WATCHER->start }; 276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 };
263 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
264 $guard 280 $guard
265} 281}
266 282
267=item cf::async { BLOCK } 283=item cf::async { BLOCK }
… …
338 354
339 $coro 355 $coro
340} 356}
341 357
342sub write_runtime { 358sub write_runtime {
343 return unless $TICK_WATCHER->is_active;
344
345 my $runtime = cf::localdir . "/runtime"; 359 my $runtime = cf::localdir . "/runtime";
346 360
347 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 361 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348 or return; 362 or return;
349 363
364 my $value = $cf::RUNTIME + 90 + 10;
350 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 365 # 10 is the runtime save interval, for a monotonic clock
366 # 60 allows for the watchdog to kill the server.
367
351 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
352 and return; 369 and return;
353 370
371 # always fsync - this file is important
354 aio_fsync $fh 372 aio_fsync $fh
355 and return; 373 and return;
356 374
357 close $fh 375 close $fh
358 or return; 376 or return;
… …
499our @CB_TYPE = (); # registry for type (cf-object class) based events 517our @CB_TYPE = (); # registry for type (cf-object class) based events
500our @CB_MAP = (); 518our @CB_MAP = ();
501 519
502my %attachment; 520my %attachment;
503 521
522sub cf::attachable::thawer_merge {
523 # simply override everything except _meta
524 local $_[0]{_meta};
525 %{$_[0]} = %{$_[1]};
526}
527
504sub _attach_cb($$$$) { 528sub _attach_cb($$$$) {
505 my ($registry, $event, $prio, $cb) = @_; 529 my ($registry, $event, $prio, $cb) = @_;
506 530
507 use sort 'stable'; 531 use sort 'stable';
508 532
… …
679# object support 703# object support
680 704
681sub reattach { 705sub reattach {
682 # basically do the same as instantiate, without calling instantiate 706 # basically do the same as instantiate, without calling instantiate
683 my ($obj) = @_; 707 my ($obj) = @_;
708
709 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684 710
685 my $registry = $obj->registry; 711 my $registry = $obj->registry;
686 712
687 @$registry = (); 713 @$registry = ();
688 714
… …
735 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
736 762
737 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
739 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
741 close $fh; 767 close $fh;
742 768
743 if (@$objs) { 769 if (@$objs) {
744 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
746 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
747 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
748 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
749 close $fh; 775 close $fh;
750 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
751 } 777 }
752 } else { 778 } else {
753 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
… …
759 } 785 }
760 } else { 786 } else {
761 aio_unlink $filename; 787 aio_unlink $filename;
762 aio_unlink "$filename.pst"; 788 aio_unlink "$filename.pst";
763 } 789 }
790
791 #d##TODO# nuke non .map-files if exist
792 if ($filename =~ s/\.map$//) {
793 aio_unlink $filename;
794 aio_unlink "$filename.pst";
795 }
764 } 796 }
765} 797}
766 798
767sub object_freezer_as_string { 799sub object_freezer_as_string {
768 my ($rdata, $objs) = @_; 800 my ($rdata, $objs) = @_;
… …
774 806
775sub object_thawer_load { 807sub object_thawer_load {
776 my ($filename) = @_; 808 my ($filename) = @_;
777 809
778 my ($data, $av); 810 my ($data, $av);
811
812 #d#TODO remove .map if file does not exist
813 aio_stat $filename and $filename =~ s/\.map$//;
779 814
780 (aio_load $filename, $data) >= 0 815 (aio_load $filename, $data) >= 0
781 or return; 816 or return;
782 817
783 unless (aio_stat "$filename.pst") { 818 unless (aio_stat "$filename.pst") {
… …
900 } or warn "$ext not loaded: $@"; 935 } or warn "$ext not loaded: $@";
901 } 936 }
902} 937}
903 938
904############################################################################# 939#############################################################################
905# load/save/clean perl data associated with a map
906
907*cf::mapsupport::on_clean = sub {
908 my ($map) = @_;
909
910 my $path = $map->tmpname;
911 defined $path or return;
912
913 unlink "$path.pst";
914};
915
916cf::map->attach (prio => -10000, package => cf::mapsupport::);
917
918#############################################################################
919 940
920=head2 CORE EXTENSIONS 941=head2 CORE EXTENSIONS
921 942
922Functions and methods that extend core crossfire objects. 943Functions and methods that extend core crossfire objects.
923 944
… …
959 980
960sub exists($) { 981sub exists($) {
961 my ($login) = @_; 982 my ($login) = @_;
962 983
963 $cf::PLAYER{$login} 984 $cf::PLAYER{$login}
964 or cf::sync_job { !aio_stat $login } 985 or cf::sync_job { !aio_stat path $login }
965} 986}
966 987
967sub find($) { 988sub find($) {
968 return $cf::PLAYER{$_[0]} || do { 989 return $cf::PLAYER{$_[0]} || do {
969 my $login = $_[0]; 990 my $login = $_[0];
… …
1067=cut 1088=cut
1068 1089
1069sub maps($) { 1090sub maps($) {
1070 my ($pl) = @_; 1091 my ($pl) = @_;
1071 1092
1093 $pl = ref $pl ? $pl->ob->name : $pl;
1094
1072 my $files = aio_readdir playerdir $pl 1095 my $files = aio_readdir playerdir $pl
1073 or return; 1096 or return;
1074 1097
1075 my @paths; 1098 my @paths;
1076 1099
1077 for (@$files) { 1100 for (@$files) {
1078 utf8::decode $_; 1101 utf8::decode $_;
1079 next if /\.(?:pl|pst)$/; 1102 next if /\.(?:pl|pst)$/;
1080 next unless /^$PATH_SEP/o; 1103 next unless /^$PATH_SEP/o;
1081 1104
1082 push @paths, "~" . $pl->ob->name . "/" . $_; 1105 push @paths, cf::map::normalise "~$pl/$_";
1083 } 1106 }
1084 1107
1085 \@paths 1108 \@paths
1086} 1109}
1087 1110
… …
1114 1137
1115use Fcntl; 1138use Fcntl;
1116use Coro::AIO; 1139use Coro::AIO;
1117 1140
1118use overload 1141use overload
1119 '""' => \&as_string; 1142 '""' => \&as_string,
1143 fallback => 1;
1120 1144
1121our $MAX_RESET = 3600; 1145our $MAX_RESET = 3600;
1122our $DEFAULT_RESET = 3000; 1146our $DEFAULT_RESET = 3000;
1123 1147
1124sub generate_random_map { 1148sub generate_random_map {
1125 my ($self, $rmp) = @_; 1149 my ($self, $rmp) = @_;
1126
1127 # mit "rum" bekleckern, nicht 1150 # mit "rum" bekleckern, nicht
1128 $self->_create_random_map ( 1151 $self->_create_random_map (
1129 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1152 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1153 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1131 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1154 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1138 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1161 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139 (cf::region::find $rmp->{region}), $rmp->{custom} 1162 (cf::region::find $rmp->{region}), $rmp->{custom}
1140 ) 1163 )
1141} 1164}
1142 1165
1166=item cf::map->register ($regex, $prio)
1167
1168Register a handler for the map path matching the given regex at the
1169givne priority (higher is better, built-in handlers have priority 0, the
1170default).
1171
1172=cut
1173
1143sub register { 1174sub register {
1144 my (undef, $regex) = @_; 1175 my (undef, $regex, $prio) = @_;
1145 my $pkg = caller; 1176 my $pkg = caller;
1146 1177
1147 no strict; 1178 no strict;
1148 push @{"$pkg\::ISA"}, __PACKAGE__; 1179 push @{"$pkg\::ISA"}, __PACKAGE__;
1149 1180
1150 $EXT_MAP{$pkg} = qr<$regex>; 1181 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151} 1182}
1152 1183
1153# also paths starting with '/' 1184# also paths starting with '/'
1154$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1185$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1186
1187sub thawer_merge {
1188 my ($self, $merge) = @_;
1189
1190 # we have to keep some variables in memory intact
1191 local $self->{path};
1192 local $self->{load_path};
1193 local $self->{deny_save};
1194 local $self->{deny_reset};
1195
1196 $self->SUPER::thawer_merge ($merge);
1197}
1155 1198
1156sub normalise { 1199sub normalise {
1157 my ($path, $base) = @_; 1200 my ($path, $base) = @_;
1201
1202 $path = "$path"; # make sure its a string
1203
1204 $path =~ s/\.map$//;
1158 1205
1159 # map plan: 1206 # map plan:
1160 # 1207 #
1161 # /! non-realised random map exit (special hack!) 1208 # /! non-realised random map exit (special hack!)
1162 # {... are special paths that are not being touched 1209 # {... are special paths that are not being touched
… …
1190 1237
1191 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1238 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1192 1239
1193 $path = normalise $path, $base; 1240 $path = normalise $path, $base;
1194 1241
1195 for my $pkg (keys %EXT_MAP) { 1242 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1196 if ($path =~ $EXT_MAP{$pkg}) { 1243 if ($path =~ $EXT_MAP{$pkg}[1]) {
1197 my $self = bless cf::map::new, $pkg; 1244 my $self = bless cf::map::new, $pkg;
1198 $self->{path} = $path; $self->path ($path); 1245 $self->{path} = $path; $self->path ($path);
1199 $self->init; # pass $1 etc. 1246 $self->init; # pass $1 etc.
1200 return $self; 1247 return $self;
1201 } 1248 }
1202 } 1249 }
1203 1250
1204 Carp::carp "unable to resolve path '$path'."; 1251 Carp::carp "unable to resolve path '$path' (base '$base').";
1205 () 1252 ()
1206} 1253}
1207 1254
1208sub init { 1255sub init {
1209 my ($self) = @_; 1256 my ($self) = @_;
… …
1220# the displayed name, this is a one way mapping 1267# the displayed name, this is a one way mapping
1221sub visible_name { 1268sub visible_name {
1222 &as_string 1269 &as_string
1223} 1270}
1224 1271
1225# escape the /'s in the path
1226sub _escaped_path {
1227 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228
1229 $path
1230}
1231
1232# the original (read-only) location 1272# the original (read-only) location
1233sub load_path { 1273sub load_path {
1234 my ($self) = @_; 1274 my ($self) = @_;
1235 1275
1236 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1276 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1237} 1277}
1238 1278
1239# the temporary/swap location 1279# the temporary/swap location
1240sub save_path { 1280sub save_path {
1241 my ($self) = @_; 1281 my ($self) = @_;
1242 1282
1283 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1243 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $self->_escaped_path 1284 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1244} 1285}
1245 1286
1246# the unique path, undef == no special unique path 1287# the unique path, undef == no special unique path
1247sub uniq_path { 1288sub uniq_path {
1248 my ($self) = @_; 1289 my ($self) = @_;
1249 1290
1291 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1250 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path 1292 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1251} 1293}
1252 1294
1253# and all this just because we cannot iterate over 1295# and all this just because we cannot iterate over
1254# all maps in C++... 1296# all maps in C++...
1255sub change_all_map_light { 1297sub change_all_map_light {
… …
1261 1303
1262sub unlink_save { 1304sub unlink_save {
1263 my ($self) = @_; 1305 my ($self) = @_;
1264 1306
1265 utf8::encode (my $save = $self->save_path); 1307 utf8::encode (my $save = $self->save_path);
1266 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1308 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1267 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1309 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311 #d#TODO remove .map and also nuke
1312 $save =~ s/\.map// or return;#d#
1313 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1268} 1315}
1269 1316
1270sub load_header_from($) { 1317sub load_header_from($) {
1271 my ($self, $path) = @_; 1318 my ($self, $path) = @_;
1272 1319
1273 utf8::encode $path; 1320 utf8::encode $path;
1274 aio_open $path, O_RDONLY, 0 1321 #aio_open $path, O_RDONLY, 0
1275 or return; 1322 # or return;
1276 1323
1277 $self->_load_header ($path) 1324 $self->_load_header ($path)
1278 or return; 1325 or return;
1279 1326
1280 $self->{load_path} = $path; 1327 $self->{load_path} = $path;
1281 1328
1282 1 1329 1
1283} 1330}
1284 1331
1285sub load_orig { 1332sub load_header_orig {
1286 my ($self) = @_; 1333 my ($self) = @_;
1287 1334
1288 $self->load_header_from ($self->load_path) 1335 $self->load_header_from ($self->load_path)
1289} 1336}
1290 1337
1291sub load_temp { 1338sub load_header_temp {
1292 my ($self) = @_; 1339 my ($self) = @_;
1293 1340
1294 $self->load_header_from ($self->save_path) 1341 $self->load_header_from ($self->save_path)
1342}
1343
1344sub prepare_temp {
1345 my ($self) = @_;
1346
1347 $self->last_access ((delete $self->{last_access})
1348 || $cf::RUNTIME); #d#
1349 # safety
1350 $self->{instantiate_time} = $cf::RUNTIME
1351 if $self->{instantiate_time} > $cf::RUNTIME;
1352}
1353
1354sub prepare_orig {
1355 my ($self) = @_;
1356
1357 $self->{load_original} = 1;
1358 $self->{instantiate_time} = $cf::RUNTIME;
1359 $self->last_access ($cf::RUNTIME);
1360 $self->instantiate;
1295} 1361}
1296 1362
1297sub load_header { 1363sub load_header {
1298 my ($self) = @_; 1364 my ($self) = @_;
1299 1365
1300 if ($self->load_temp) { 1366 if ($self->load_header_temp) {
1301 $self->last_access ((delete $self->{last_access}) 1367 $self->prepare_temp;
1302 || $cf::RUNTIME); #d#
1303 # safety
1304 $self->{instantiate_time} = $cf::RUNTIME
1305 if $self->{instantiate_time} > $cf::RUNTIME;
1306 } else { 1368 } else {
1307 $self->load_orig 1369 $self->load_header_orig
1308 or return; 1370 or return;
1309 1371 $self->prepare_orig;
1310 $self->{load_original} = 1;
1311 $self->{instantiate_time} = $cf::RUNTIME;
1312 $self->last_access ($cf::RUNTIME);
1313 $self->instantiate;
1314 } 1372 }
1315 1373
1316 1 1374 1
1317} 1375}
1318 1376
… …
1332 $map->{last_save} = $cf::RUNTIME; 1390 $map->{last_save} = $cf::RUNTIME;
1333 1391
1334 $map->load_header 1392 $map->load_header
1335 or return; 1393 or return;
1336 1394
1337 if ($map->should_reset) { 1395 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1396 # doing this can freeze the server in a sync job, obviously
1397 #$cf::WAIT_FOR_TICK->wait;
1338 $map->reset; 1398 $map->reset;
1339 undef $guard; 1399 undef $guard;
1340 $map = find $path 1400 return find $path;
1341 or return;
1342 } 1401 }
1343 1402
1344 $cf::MAP{$path} = $map 1403 $cf::MAP{$path} = $map
1345 } 1404 }
1346} 1405}
1406
1407sub pre_load { }
1408sub post_load { }
1347 1409
1348sub load { 1410sub load {
1349 my ($self) = @_; 1411 my ($self) = @_;
1350 1412
1413 local $self->{deny_reset} = 1; # loading can take a long time
1414
1351 my $path = $self->{path}; 1415 my $path = $self->{path};
1352 my $guard = cf::lock_acquire "map_load:$path"; 1416 my $guard = cf::lock_acquire "map_load:$path";
1353 1417
1354 return if $self->in_memory != cf::MAP_SWAPPED; 1418 return if $self->in_memory != cf::MAP_SWAPPED;
1355 1419
1356 $self->in_memory (cf::MAP_LOADING); 1420 $self->in_memory (cf::MAP_LOADING);
1357 1421
1358 $self->alloc; 1422 $self->alloc;
1423
1424 $self->pre_load;
1425
1359 $self->_load_objects ($self->{load_path}, 1) 1426 $self->_load_objects ($self->{load_path}, 1)
1360 or return; 1427 or return;
1361 1428
1362 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1429 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1363 if delete $self->{load_original}; 1430 if delete $self->{load_original};
… …
1385 unless $self->difficulty; 1452 unless $self->difficulty;
1386 Coro::cede; 1453 Coro::cede;
1387 $self->activate; 1454 $self->activate;
1388 } 1455 }
1389 1456
1457 $self->post_load;
1458
1390 $self->in_memory (cf::MAP_IN_MEMORY); 1459 $self->in_memory (cf::MAP_IN_MEMORY);
1391} 1460}
1392 1461
1393sub customise_for { 1462sub customise_for {
1394 my ($self, $ob) = @_; 1463 my ($self, $ob) = @_;
… …
1434 1503
1435 cf::sync_job { $map->load }; 1504 cf::sync_job { $map->load };
1436} 1505}
1437 1506
1438our %MAP_PREFETCH; 1507our %MAP_PREFETCH;
1439our $MAP_PREFETCHER = Coro::async { 1508our $MAP_PREFETCHER = undef;
1440 while () {
1441 for my $path (keys %MAP_PREFETCH) {
1442 my $map = find $path
1443 or next;
1444 $map->load;
1445
1446 delete $MAP_PREFETCH{$path};
1447 }
1448 Coro::schedule;
1449 }
1450};
1451 1509
1452sub find_async { 1510sub find_async {
1453 my ($path, $origin) = @_; 1511 my ($path, $origin) = @_;
1454 1512
1455 $path = normalise $path, $origin && $origin->{path}; 1513 $path = normalise $path, $origin && $origin->{path};
1456 1514
1457 if (my $map = $cf::MAP{$path}) { 1515 if (my $map = $cf::MAP{$path}) {
1458 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1516 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1459 } 1517 }
1460 1518
1461 $MAP_PREFETCH{$path} = 0; 1519 undef $MAP_PREFETCH{$path};
1520 $MAP_PREFETCHER ||= cf::async {
1521 while (%MAP_PREFETCH) {
1522 for my $path (keys %MAP_PREFETCH) {
1523 my $map = find $path
1524 or next;
1525 $map->load;
1526
1527 delete $MAP_PREFETCH{$path};
1528 }
1529 }
1530 undef $MAP_PREFETCHER;
1531 };
1462 $MAP_PREFETCHER->ready; 1532 $MAP_PREFETCHER->prio (6);
1463 1533
1464 () 1534 ()
1465} 1535}
1466 1536
1467sub save { 1537sub save {
… …
1512 1582
1513sub reset_at { 1583sub reset_at {
1514 my ($self) = @_; 1584 my ($self) = @_;
1515 1585
1516 # TODO: safety, remove and allow resettable per-player maps 1586 # TODO: safety, remove and allow resettable per-player maps
1517 return 1e99 if $self->isa ("ext::map_per_player"); 1587 return 1e99 if $self->isa ("ext::map_per_player");#d#
1518 return 1e99 if $self->{deny_reset}; 1588 return 1e99 if $self->{deny_reset};
1519 1589
1520 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1590 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1521 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1591 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1522 1592
… …
1527 my ($self) = @_; 1597 my ($self) = @_;
1528 1598
1529 $self->reset_at <= $cf::RUNTIME 1599 $self->reset_at <= $cf::RUNTIME
1530} 1600}
1531 1601
1532sub rename {
1533 my ($self, $new_path) = @_;
1534
1535 normalise $new_path;
1536
1537 $self->unlink_save;
1538
1539 delete $cf::MAP{$self->path};
1540 $self->{path} = $new_path; $self->path ($self->{path});
1541 $cf::MAP{$self->path} = $self;
1542
1543 $self->save;
1544}
1545
1546sub reset { 1602sub reset {
1547 my ($self) = @_; 1603 my ($self) = @_;
1548 1604
1549 my $lock = cf::lock_acquire "map_data:" . $self->path; 1605 my $lock = cf::lock_acquire "map_data:$self->{path}";
1550 1606
1551 return if $self->players; 1607 return if $self->players;
1552 return if $self->isa ("ext::map_per_player");#d# 1608 return if $self->isa ("ext::map_per_player");#d#
1553 1609
1554 warn "resetting map ", $self->path;#d# 1610 warn "resetting map ", $self->path;#d#
1555 1611
1612 $self->in_memory (cf::MAP_SWAPPED);
1613
1614 # need to save uniques path
1615 unless ($self->{deny_save}) {
1616 my $uniq = $self->uniq_path; utf8::encode $uniq;
1617
1618 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1619 if $uniq;
1620 }
1621
1556 delete $cf::MAP{$self->path}; 1622 delete $cf::MAP{$self->path};
1623
1624 $self->clear;
1557 1625
1558 $_->clear_links_to ($self) for values %cf::MAP; 1626 $_->clear_links_to ($self) for values %cf::MAP;
1559 1627
1560 $self->unlink_save; 1628 $self->unlink_save;
1561 $self->destroy; 1629 $self->destroy;
… …
1564my $nuke_counter = "aaaa"; 1632my $nuke_counter = "aaaa";
1565 1633
1566sub nuke { 1634sub nuke {
1567 my ($self) = @_; 1635 my ($self) = @_;
1568 1636
1637 delete $cf::MAP{$self->path};
1638
1639 $self->unlink_save;
1640
1641 bless $self, "cf::map";
1642 delete $self->{deny_reset};
1569 $self->{deny_save} = 1; 1643 $self->{deny_save} = 1;
1570 $self->reset_timeout (1); 1644 $self->reset_timeout (1);
1571 $self->rename ("{nuke}/" . ($nuke_counter++)); 1645 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646
1647 $cf::MAP{$self->path} = $self;
1648
1572 $self->reset; # polite request, might not happen 1649 $self->reset; # polite request, might not happen
1573} 1650}
1574 1651
1575=item cf::map::unique_maps 1652=item cf::map::unique_maps
1576 1653
… …
1588 for (@$files) { 1665 for (@$files) {
1589 utf8::decode $_; 1666 utf8::decode $_;
1590 next if /\.pst$/; 1667 next if /\.pst$/;
1591 next unless /^$PATH_SEP/o; 1668 next unless /^$PATH_SEP/o;
1592 1669
1593 push @paths, $_; 1670 push @paths, cf::map::normalise $_;
1594 } 1671 }
1595 1672
1596 \@paths 1673 \@paths
1597} 1674}
1598 1675
… …
1692=cut 1769=cut
1693 1770
1694sub link_map { 1771sub link_map {
1695 unless ($LINK_MAP) { 1772 unless ($LINK_MAP) {
1696 $LINK_MAP = cf::map::find "{link}" 1773 $LINK_MAP = cf::map::find "{link}"
1697 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1774 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1698 $LINK_MAP->load; 1775 $LINK_MAP->load;
1699 } 1776 }
1700 1777
1701 $LINK_MAP 1778 $LINK_MAP
1702} 1779}
… …
1709 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1786 return if UNIVERSAL::isa $self->map, "ext::map_link";
1710 1787
1711 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1788 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712 if $self->map; 1789 if $self->map;
1713 1790
1714 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1791 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1715} 1792}
1716 1793
1717sub cf::object::player::leave_link { 1794sub cf::object::player::leave_link {
1718 my ($self, $map, $x, $y) = @_; 1795 my ($self, $map, $x, $y) = @_;
1719 1796
… …
1741 $map->load; 1818 $map->load;
1742 $map->load_diag; 1819 $map->load_diag;
1743 1820
1744 return unless $self->contr->active; 1821 return unless $self->contr->active;
1745 $self->activate_recursive; 1822 $self->activate_recursive;
1823
1824 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1747} 1826}
1748 1827
1749cf::player->attach ( 1828cf::player->attach (
1750 on_logout => sub { 1829 on_logout => sub {
… …
1763 # try to abort aborted map switching on player login :) 1842 # try to abort aborted map switching on player login :)
1764 # should happen only on crashes 1843 # should happen only on crashes
1765 if ($pl->ob->{_link_pos}) { 1844 if ($pl->ob->{_link_pos}) {
1766 $pl->ob->enter_link; 1845 $pl->ob->enter_link;
1767 (async { 1846 (async {
1768 # we need this sleep as the login has a concurrent enter_exit running
1769 # and this sleep increases chances of the player not ending up in scorn
1770 $pl->ob->reply (undef, 1847 $pl->ob->reply (undef,
1771 "There was an internal problem at your last logout, " 1848 "There was an internal problem at your last logout, "
1772 . "the server will try to bring you to your intended destination in a second.", 1849 . "the server will try to bring you to your intended destination in a second.",
1773 cf::NDI_RED); 1850 cf::NDI_RED);
1851 # we need this sleep as the login has a concurrent enter_exit running
1852 # and this sleep increases chances of the player not ending up in scorn
1774 Coro::Timer::sleep 1; 1853 Coro::Timer::sleep 1;
1775 $pl->ob->leave_link; 1854 $pl->ob->leave_link;
1776 })->prio (2); 1855 })->prio (2);
1777 } 1856 }
1778 }, 1857 },
… …
1786 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1787 1866
1788 $self->enter_link; 1867 $self->enter_link;
1789 1868
1790 (async { 1869 (async {
1870 my $map = eval {
1791 my $map = cf::map::find $path; 1871 my $map = cf::map::find $path;
1792 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1793 1873 $map
1794# warn "entering ", $map->path, " at ($x, $y)\n" 1874 } or
1795# if $map;
1796
1797 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1875 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1798 1876
1799 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1800 })->prio (1); 1878 })->prio (1);
1801} 1879}
1802 1880
… …
1806 1884
1807sub parse_random_map_params { 1885sub parse_random_map_params {
1808 my ($spec) = @_; 1886 my ($spec) = @_;
1809 1887
1810 my $rmp = { # defaults 1888 my $rmp = { # defaults
1811 xsize => 10, 1889 xsize => (cf::rndm 15, 40),
1812 ysize => 10, 1890 ysize => (cf::rndm 15, 40),
1891 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1892 #layout => string,
1813 }; 1893 };
1814 1894
1815 for (split /\n/, $spec) { 1895 for (split /\n/, $spec) {
1816 my ($k, $v) = split /\s+/, $_, 2; 1896 my ($k, $v) = split /\s+/, $_, 2;
1817 1897
… …
1821 $rmp 1901 $rmp
1822} 1902}
1823 1903
1824sub prepare_random_map { 1904sub prepare_random_map {
1825 my ($exit) = @_; 1905 my ($exit) = @_;
1906
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1826 1908
1827 # all this does is basically replace the /! path by 1909 # all this does is basically replace the /! path by
1828 # a new random map path (?random/...) with a seed 1910 # a new random map path (?random/...) with a seed
1829 # that depends on the exit object 1911 # that depends on the exit object
1830 1912
1831 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1832 1914
1833 if ($exit->map) { 1915 if ($exit->map) {
1834 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1835 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1836 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1837 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1838 } 1920 }
1839 1921
1840 $rmp->{random_seed} ||= $exit->random_seed; 1922 $rmp->{random_seed} ||= $exit->random_seed;
1841 1923
1842 my $data = cf::to_json $rmp; 1924 my $data = cf::to_json $rmp;
1843 my $md5 = Digest::MD5::md5_hex $data; 1925 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1844 1927
1845 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1928 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1846 aio_write $fh, 0, (length $data), $data, 0; 1929 aio_write $fh, 0, (length $data), $data, 0;
1930 undef $fh;
1931 aio_rename "$meta~", $meta;
1847 1932
1848 $exit->slaying ("?random/$md5"); 1933 $exit->slaying ("?random/$md5");
1849 $exit->msg (undef); 1934 $exit->msg (undef);
1850 } 1935 }
1851} 1936}
1852 1937
1853sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1854 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1855 1940
1856 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1942
1943 if ($exit->slaying eq "/!") {
1944 #TODO: this should de-fi-ni-te-ly not be a sync-job
1945 cf::sync_job { prepare_random_map $exit };
1946 }
1947
1948 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949 my $hp = $exit->stats->hp;
1950 my $sp = $exit->stats->sp;
1857 1951
1858 $self->enter_link; 1952 $self->enter_link;
1859 1953
1860 (async { 1954 (async {
1861 $self->deactivate_recursive; # just to be sure 1955 $self->deactivate_recursive; # just to be sure
1862 unless (eval { 1956 unless (eval {
1863 prepare_random_map $exit 1957 $self->goto ($slaying, $hp, $sp);
1864 if $exit->slaying eq "/!";
1865
1866 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1867 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1868 1958
1869 1; 1959 1;
1870 }) { 1960 }) {
1871 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1872 . "I'll try to bring you back to the map you were before. " 1962 . "I'll try to bring you back to the map you were before. "
… …
1933 # get handled first 2023 # get handled first
1934 my $queue = delete $ns->{query_queue} 2024 my $queue = delete $ns->{query_queue}
1935 or return; # be conservative, not sure how that can happen, but we saw a crash here 2025 or return; # be conservative, not sure how that can happen, but we saw a crash here
1936 2026
1937 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1938 2029
1939 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1940 2031
1941 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1942 if (@$queue) { 2033 if (@$queue) {
… …
2103The parameter C<$family> should best start with the name of the extension 2194The parameter C<$family> should best start with the name of the extension
2104using it, it should be unique. 2195using it, it should be unique.
2105 2196
2106=over 4 2197=over 4
2107 2198
2108=item $hashref = cf::db_get $family
2109
2110Return a hashref for use by the extension C<$family>, which can be
2111modified. After modifications, you have to call C<cf::db_dirty> or
2112C<cf::db_sync>.
2113
2114=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
2115 2200
2116Returns a single value from the database 2201Returns a single value from the database.
2117
2118=item cf::db_put $family => $hashref
2119
2120Stores the given family hashref into the database. Updates are delayed, if
2121you want the data to be synced to disk immediately, use C<cf::db_sync>.
2122 2202
2123=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
2124 2204
2125Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
2126want the data to be synced to disk immediately, use C<cf::db_sync>.
2127
2128=item cf::db_dirty
2129
2130Marks the database as dirty, to be updated at a later time.
2131
2132=item cf::db_sync
2133
2134Immediately write the database to disk I<if it is dirty>.
2135 2206
2136=cut 2207=cut
2137 2208
2138our $DB; 2209our $DB;
2139 2210
2140{ 2211sub db_init {
2212 unless ($DB) {
2213 $DB = BDB::db_create $DB_ENV;
2214
2215 cf::sync_job {
2216 eval {
2217 $DB->set_flags (BDB::CHKSUM);
2218
2219 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221 cf::cleanup "db_open(db): $!" if $!;
2222 };
2223 cf::cleanup "db_open(db): $@" if $@;
2224 };
2225
2141 my $path = cf::localdir . "/database.pst"; 2226 my $path = cf::localdir . "/database.pst";
2227 if (stat $path) {
2228 cf::sync_job {
2229 my $pst = Storable::retrieve $path;
2142 2230
2143 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
2144 $DB = stat $path ? Storable::retrieve $path : { }; 2232 cf::db_put (guildrules => data => $pst->{guildrules});
2145 } 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
2146 2235
2147 my $pid; 2236 unlink $path;
2148
2149 sub db_save() {
2150 waitpid $pid, 0 if $pid;
2151 if (0 == ($pid = fork)) {
2152 $DB->{_meta}{version} = 1;
2153 Storable::nstore $DB, "$path~";
2154 rename "$path~", $path;
2155 cf::_exit 0 if defined $pid;
2156 } 2237 };
2157 }
2158
2159 my $dirty;
2160
2161 sub db_sync() {
2162 db_save if $dirty;
2163 undef $dirty;
2164 }
2165
2166 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2167 db_sync;
2168 });
2169
2170 sub db_dirty() {
2171 $dirty = 1;
2172 $idle->start;
2173 }
2174
2175 sub db_get($;$) {
2176 @_ >= 2
2177 ? $DB->{$_[0]}{$_[1]}
2178 : ($DB->{$_[0]} ||= { })
2179 }
2180
2181 sub db_put($$;$) {
2182 if (@_ >= 3) {
2183 $DB->{$_[0]}{$_[1]} = $_[2];
2184 } else {
2185 $DB->{$_[0]} = $_[1];
2186 }
2187 db_dirty;
2188 }
2189
2190 cf::global->attach (
2191 prio => 10000,
2192 on_cleanup => sub {
2193 db_sync;
2194 }, 2238 }
2195 ); 2239 }
2240}
2241
2242sub db_get($$) {
2243 my $key = "$_[0]/$_[1]";
2244
2245 cf::sync_job {
2246 BDB::db_get $DB, undef, $key, my $data;
2247
2248 $! ? ()
2249 : Compress::LZF::sthaw $data
2250 }
2251}
2252
2253sub db_put($$$) {
2254 BDB::dbreq_pri 4;
2255 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2196} 2256}
2197 2257
2198############################################################################# 2258#############################################################################
2199# the server's main() 2259# the server's init and main functions
2260
2261sub load_resources {
2262 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2263 or die "unable to load regions file\n";#d#
2264}
2200 2265
2201sub cfg_load { 2266sub cfg_load {
2202 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
2203 or return; 2268 or return;
2204 2269
… …
2217 }; 2282 };
2218 warn $@ if $@; 2283 warn $@ if $@;
2219 } 2284 }
2220} 2285}
2221 2286
2287sub init {
2288 load_resources;
2289}
2290
2222sub main { 2291sub main {
2223 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
2224 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
2225 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2294 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2295 (async {
2226 async { Event::one_event }; 2296 Event::one_event;
2297 })->prio (Coro::PRIO_MAX);
2227 }; 2298 };
2228 2299
2229 cfg_load; 2300 cfg_load;
2230 db_load; 2301 db_init;
2231 load_extensions; 2302 load_extensions;
2303
2304 $TICK_WATCHER->start;
2232 Event::loop; 2305 Event::loop;
2233} 2306}
2234 2307
2235############################################################################# 2308#############################################################################
2236# initialisation and cleanup 2309# initialisation and cleanup
2237 2310
2238# install some emergency cleanup handlers 2311# install some emergency cleanup handlers
2239BEGIN { 2312BEGIN {
2240 for my $signal (qw(INT HUP TERM)) { 2313 for my $signal (qw(INT HUP TERM)) {
2241 Event->signal ( 2314 Event->signal (
2315 reentrant => 0,
2242 data => WF_AUTOCANCEL, 2316 data => WF_AUTOCANCEL,
2243 signal => $signal, 2317 signal => $signal,
2318 prio => 0,
2244 cb => sub { 2319 cb => sub {
2245 cf::cleanup "SIG$signal"; 2320 cf::cleanup "SIG$signal";
2246 }, 2321 },
2247 ); 2322 );
2248 } 2323 }
2249} 2324}
… …
2254 warn "enter emergency perl save\n"; 2329 warn "enter emergency perl save\n";
2255 2330
2256 cf::sync_job { 2331 cf::sync_job {
2257 # use a peculiar iteration method to avoid tripping on perl 2332 # use a peculiar iteration method to avoid tripping on perl
2258 # refcount bugs in for. also avoids problems with players 2333 # refcount bugs in for. also avoids problems with players
2259 # and maps saved/Destroyed asynchronously. 2334 # and maps saved/destroyed asynchronously.
2260 warn "begin emergency player save\n"; 2335 warn "begin emergency player save\n";
2261 for my $login (keys %cf::PLAYER) { 2336 for my $login (keys %cf::PLAYER) {
2262 my $pl = $cf::PLAYER{$login} or next; 2337 my $pl = $cf::PLAYER{$login} or next;
2263 $pl->valid or next; 2338 $pl->valid or next;
2264 $pl->save; 2339 $pl->save;
… …
2270 my $map = $cf::MAP{$path} or next; 2345 my $map = $cf::MAP{$path} or next;
2271 $map->valid or next; 2346 $map->valid or next;
2272 $map->save; 2347 $map->save;
2273 } 2348 }
2274 warn "end emergency map save\n"; 2349 warn "end emergency map save\n";
2350
2351 warn "begin emergency database checkpoint\n";
2352 BDB::db_env_txn_checkpoint $DB_ENV;
2353 warn "end emergency database checkpoint\n";
2275 }; 2354 };
2276 2355
2277 warn "leave emergency perl save\n"; 2356 warn "leave emergency perl save\n";
2357}
2358
2359sub post_cleanup {
2360 my ($make_core) = @_;
2361
2362 warn Carp::longmess "post_cleanup backtrace"
2363 if $make_core;
2278} 2364}
2279 2365
2280sub reload() { 2366sub reload() {
2281 # can/must only be called in main 2367 # can/must only be called in main
2282 if ($Coro::current != $Coro::main) { 2368 if ($Coro::current != $Coro::main) {
2283 warn "can only reload from main coroutine\n"; 2369 warn "can only reload from main coroutine";
2284 return; 2370 return;
2285 } 2371 }
2286 2372
2287 warn "reloading..."; 2373 warn "reloading...";
2288 2374
2289 warn "freezing server"; 2375 warn "entering sync_job";
2290 my $guard = freeze_mainloop; 2376
2377 cf::sync_job {
2378 cf::write_runtime; # external watchdog should not bark
2291 cf::emergency_save; 2379 cf::emergency_save;
2380 cf::write_runtime; # external watchdog should not bark
2292 2381
2293 warn "sync database to disk"; 2382 warn "syncing database to disk";
2294 cf::db_sync; 2383 BDB::db_env_txn_checkpoint $DB_ENV;
2295 IO::AIO::flush;
2296 2384
2297 eval {
2298 # if anything goes wrong in here, we should simply crash as we already saved 2385 # if anything goes wrong in here, we should simply crash as we already saved
2299 2386
2300 warn "cancel all watchers"; 2387 warn "cancelling all WF_AUTOCANCEL watchers";
2301 for (Event::all_watchers) { 2388 for (Event::all_watchers) {
2302 $_->cancel if $_->data & WF_AUTOCANCEL; 2389 $_->cancel if $_->data & WF_AUTOCANCEL;
2303 } 2390 }
2304 2391
2392 warn "flushing outstanding aio requests";
2393 for (;;) {
2394 BDB::flush;
2395 IO::AIO::flush;
2396 Coro::cede;
2397 last unless IO::AIO::nreqs || BDB::nreqs;
2398 warn "iterate...";
2399 }
2400
2305 warn "cancel all extension coros"; 2401 warn "cancelling all extension coros";
2306 $_->cancel for values %EXT_CORO; 2402 $_->cancel for values %EXT_CORO;
2307 %EXT_CORO = (); 2403 %EXT_CORO = ();
2308 2404
2309 warn "remove commands"; 2405 warn "removing commands";
2310 %COMMAND = (); 2406 %COMMAND = ();
2311 2407
2312 warn "remove ext commands"; 2408 warn "removing ext commands";
2313 %EXTCMD = (); 2409 %EXTCMD = ();
2314 2410
2315 warn "unload/nuke all extensions"; 2411 warn "unloading/nuking all extensions";
2316 for my $pkg (@EXTS) { 2412 for my $pkg (@EXTS) {
2317 warn "... unloading $pkg"; 2413 warn "... unloading $pkg";
2318 2414
2319 if (my $cb = $pkg->can ("unload")) { 2415 if (my $cb = $pkg->can ("unload")) {
2320 eval { 2416 eval {
… …
2325 2421
2326 warn "... nuking $pkg"; 2422 warn "... nuking $pkg";
2327 Symbol::delete_package $pkg; 2423 Symbol::delete_package $pkg;
2328 } 2424 }
2329 2425
2330 warn "unload all perl modules loaded from $LIBDIR"; 2426 warn "unloading all perl modules loaded from $LIBDIR";
2331 while (my ($k, $v) = each %INC) { 2427 while (my ($k, $v) = each %INC) {
2332 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2428 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2333 2429
2334 warn "removing <$k>"; 2430 warn "... unloading $k";
2335 delete $INC{$k}; 2431 delete $INC{$k};
2336 2432
2337 $k =~ s/\.pm$//; 2433 $k =~ s/\.pm$//;
2338 $k =~ s/\//::/g; 2434 $k =~ s/\//::/g;
2339 2435
… …
2342 } 2438 }
2343 2439
2344 Symbol::delete_package $k; 2440 Symbol::delete_package $k;
2345 } 2441 }
2346 2442
2347 warn "get rid of safe::, as good as possible"; 2443 warn "getting rid of safe::, as good as possible";
2348 Symbol::delete_package "safe::$_" 2444 Symbol::delete_package "safe::$_"
2349 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2445 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2350 2446
2351 warn "unload cf.pm \"a bit\""; 2447 warn "unloading cf.pm \"a bit\"";
2352 delete $INC{"cf.pm"}; 2448 delete $INC{"cf.pm"};
2353 2449
2354 # don't, removes xs symbols, too, 2450 # don't, removes xs symbols, too,
2355 # and global variables created in xs 2451 # and global variables created in xs
2356 #Symbol::delete_package __PACKAGE__; 2452 #Symbol::delete_package __PACKAGE__;
2357 2453
2454 warn "unload completed, starting to reload now";
2455
2358 warn "reloading cf.pm"; 2456 warn "reloading cf.pm";
2359 require cf; 2457 require cf;
2360 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2458 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2361 2459
2362 warn "load config and database again"; 2460 warn "loading config and database again";
2363 cf::cfg_load; 2461 cf::cfg_load;
2364 cf::db_load;
2365 2462
2366 warn "load extensions"; 2463 warn "loading extensions";
2367 cf::load_extensions; 2464 cf::load_extensions;
2368 2465
2369 warn "reattach attachments to objects/players"; 2466 warn "reattaching attachments to objects/players";
2370 _global_reattach; 2467 _global_reattach;
2371 warn "reattach attachments to maps"; 2468 warn "reattaching attachments to maps";
2372 reattach $_ for values %MAP; 2469 reattach $_ for values %MAP;
2373 };
2374 2470
2375 if ($@) { 2471 warn "loading reloadable resources";
2472 load_resources;
2473
2474 warn "leaving sync_job";
2475
2476 1
2477 } or do {
2376 warn $@; 2478 warn $@;
2377 warn "error while reloading, exiting."; 2479 warn "error while reloading, exiting.";
2378 exit 1; 2480 exit 1;
2379 } 2481 };
2380 2482
2381 warn "reloaded"; 2483 warn "reloaded";
2382}; 2484};
2383 2485
2486our $RELOAD_WATCHER; # used only during reload
2487
2384register_command "reload" => sub { 2488register_command "reload" => sub {
2385 my ($who, $arg) = @_; 2489 my ($who, $arg) = @_;
2386 2490
2387 if ($who->flag (FLAG_WIZ)) { 2491 if ($who->flag (FLAG_WIZ)) {
2388 $who->message ("start of reload."); 2492 $who->message ("reloading server.");
2493
2494 # doing reload synchronously and two reloads happen back-to-back,
2495 # coro crashes during coro_state_free->destroy here.
2496
2497 $RELOAD_WATCHER ||= Event->timer (
2498 reentrant => 0,
2499 after => 0,
2500 data => WF_AUTOCANCEL,
2501 cb => sub {
2389 reload; 2502 reload;
2390 $who->message ("end of reload."); 2503 undef $RELOAD_WATCHER;
2504 },
2505 );
2391 } 2506 }
2392}; 2507};
2393 2508
2394unshift @INC, $LIBDIR; 2509unshift @INC, $LIBDIR;
2510
2511my $bug_warning = 0;
2395 2512
2396$TICK_WATCHER = Event->timer ( 2513$TICK_WATCHER = Event->timer (
2397 reentrant => 0, 2514 reentrant => 0,
2515 parked => 1,
2398 prio => 0, 2516 prio => 0,
2399 at => $NEXT_TICK || $TICK, 2517 at => $NEXT_TICK || $TICK,
2400 data => WF_AUTOCANCEL, 2518 data => WF_AUTOCANCEL,
2401 cb => sub { 2519 cb => sub {
2520 if ($Coro::current != $Coro::main) {
2521 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2522 unless ++$bug_warning > 10;
2523 return;
2524 }
2525
2402 $NOW = Event::time; 2526 $NOW = Event::time;
2403 2527
2404 cf::server_tick; # one server iteration 2528 cf::server_tick; # one server iteration
2405 $RUNTIME += $TICK; 2529 $RUNTIME += $TICK;
2406 $NEXT_TICK += $TICK; 2530 $NEXT_TICK += $TICK;
2407 2531
2532 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2533 $NEXT_RUNTIME_WRITE = $NOW + 10;
2534 Coro::async_pool {
2535 write_runtime
2536 or warn "ERROR: unable to write runtime file: $!";
2537 };
2538 }
2539
2540
2408 $WAIT_FOR_TICK->broadcast; 2541 $WAIT_FOR_TICK->broadcast;
2409 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2542 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2543
2544# my $AFTER = Event::time;
2545# warn $AFTER - $NOW;#d#
2410 2546
2411 # if we are delayed by four ticks or more, skip them all 2547 # if we are delayed by four ticks or more, skip them all
2412 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2548 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2413 2549
2414 $TICK_WATCHER->at ($NEXT_TICK); 2550 $TICK_WATCHER->at ($NEXT_TICK);
2415 $TICK_WATCHER->start; 2551 $TICK_WATCHER->start;
2416 }, 2552 },
2417); 2553);
2418 2554
2555{
2419IO::AIO::max_poll_time $TICK * 0.2; 2556 BDB::max_poll_time $TICK * 0.1;
2420 2557 $BDB_POLL_WATCHER = Event->io (
2421Event->io ( 2558 reentrant => 0,
2422 fd => IO::AIO::poll_fileno, 2559 fd => BDB::poll_fileno,
2423 poll => 'r', 2560 poll => 'r',
2424 prio => 5, 2561 prio => 0,
2425 data => WF_AUTOCANCEL,
2426 cb => \&IO::AIO::poll_cb,
2427);
2428
2429Event->timer (
2430 data => WF_AUTOCANCEL, 2562 data => WF_AUTOCANCEL,
2431 after => 0, 2563 cb => \&BDB::poll_cb,
2432 interval => 10, 2564 );
2433 cb => sub { 2565 BDB::min_parallel 8;
2434 (Coro::unblock_sub { 2566
2435 write_runtime 2567 BDB::set_sync_prepare {
2436 or warn "ERROR: unable to write runtime file: $!"; 2568 my $status;
2569 my $current = $Coro::current;
2570 (
2571 sub {
2572 $status = $!;
2573 $current->ready; undef $current;
2574 },
2575 sub {
2576 Coro::schedule while defined $current;
2577 $! = $status;
2578 },
2579 )
2580 };
2581
2582 unless ($DB_ENV) {
2583 $DB_ENV = BDB::db_env_create;
2584
2585 cf::sync_job {
2586 eval {
2587 BDB::db_env_open
2588 $DB_ENV,
2589 $BDB_ENV_DIR,
2590 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2591 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2592 0666;
2593
2594 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2595
2596 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2597 $DB_ENV->set_lk_detect;
2598 };
2599
2600 cf::cleanup "db_env_open(db): $@" if $@;
2437 })->(); 2601 };
2438 }, 2602 }
2439); 2603}
2604
2605{
2606 IO::AIO::min_parallel 8;
2607
2608 undef $Coro::AIO::WATCHER;
2609 IO::AIO::max_poll_time $TICK * 0.1;
2610 $AIO_POLL_WATCHER = Event->io (
2611 reentrant => 0,
2612 data => WF_AUTOCANCEL,
2613 fd => IO::AIO::poll_fileno,
2614 poll => 'r',
2615 prio => 6,
2616 cb => \&IO::AIO::poll_cb,
2617 );
2618}
2440 2619
2441END { cf::emergency_save } 2620END { cf::emergency_save }
2442 2621
24431 26221
2444 2623

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