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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.182 by root, Fri Jan 19 15:38:01 2007 UTC vs.
Revision 1.237 by root, Fri Apr 13 05:08:51 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 3.4 (); 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;
21use Coro::Storable;
19 22
23use BDB ();
20use Data::Dumper; 24use Data::Dumper;
21use Digest::MD5; 25use Digest::MD5;
22use Fcntl; 26use Fcntl;
27use YAML::Syck ();
23use IO::AIO 2.32 (); 28use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 29use Time::HiRes;
30use Compress::LZF;
26 31
32# configure various modules to our taste
33#
34$Storable::canonical = 1; # reduce rsync transfers
35Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
36Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 38$Event::Eval = 1; # no idea why this is required, but it is
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 39
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 40# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 41$YAML::Syck::ImplicitUnicode = 1;
33 42
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 43$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44
45sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 46
36our %COMMAND = (); 47our %COMMAND = ();
37our %COMMAND_TIME = (); 48our %COMMAND_TIME = ();
38 49
39our @EXTS = (); # list of extension package names 50our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 51our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 52our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 53our %EXT_MAP = (); # pluggable maps
43 54
55our $RELOAD; # number of reloads so far
44our @EVENT; 56our @EVENT;
45our $LIBDIR = datadir . "/ext"; 57our $LIBDIR = datadir . "/ext";
46 58
47our $TICK = MAX_TIME * 1e-6; 59our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 60our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 61our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 62our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 63our $NEXT_TICK;
52our $NOW; 64our $NOW;
65our $USE_FSYNC = 1; # use fsync to write maps - default off
66
67our $BDB_POLL_WATCHER;
68our $DB_ENV;
53 69
54our %CFG; 70our %CFG;
55 71
56our $UPTIME; $UPTIME ||= time; 72our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 73our $RUNTIME;
58 74
59our %PLAYER; # all users 75our %PLAYER; # all users
60our %MAP; # all maps 76our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 77our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 78our $RANDOM_MAPS = cf::localdir . "/random";
79our $BDB_ENV_DIR = cf::localdir . "/db";
63 80
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 81our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 82our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 83
67# used to convert map paths into valid unix filenames by replacing / by ∕ 84# used to convert map paths into valid unix filenames by replacing / by ∕
80mkdir cf::localdir; 97mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 98mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 99mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 100mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 101mkdir $RANDOM_MAPS;
102mkdir $BDB_ENV_DIR;
85 103
86our $EMERGENCY_POSITION; 104our $EMERGENCY_POSITION;
105
106sub cf::map::normalise;
87 107
88############################################################################# 108#############################################################################
89 109
90=head2 GLOBAL VARIABLES 110=head2 GLOBAL VARIABLES
91 111
190 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 210 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191 $d 211 $d
192 } || "[unable to dump $_[0]: '$@']"; 212 } || "[unable to dump $_[0]: '$@']";
193} 213}
194 214
195use JSON::Syck (); # TODO# replace by JSON::PC once working 215use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196 216
197=item $ref = cf::from_json $json 217=item $ref = cf::from_json $json
198 218
199Converts a JSON string into the corresponding perl data structure. 219Converts a JSON string into the corresponding perl data structure.
200 220
201=cut
202
203sub from_json($) {
204 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205 JSON::Syck::Load $_[0]
206}
207
208=item $json = cf::to_json $ref 221=item $json = cf::to_json $ref
209 222
210Converts a perl data structure into its JSON representation. 223Converts a perl data structure into its JSON representation.
211
212=cut
213
214sub to_json($) {
215 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216 JSON::Syck::Dump $_[0]
217}
218 224
219=item cf::lock_wait $string 225=item cf::lock_wait $string
220 226
221Wait until the given lock is available. See cf::lock_acquire. 227Wait until the given lock is available. See cf::lock_acquire.
222 228
261sub freeze_mainloop { 267sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 268 return unless $TICK_WATCHER->is_active;
263 269
264 my $guard = Coro::guard { 270 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 271 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 272 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 273 $TICK_WATCHER->stop;
270 $guard 274 $guard
271} 275}
272 276
273=item cf::async { BLOCK } 277=item cf::async { BLOCK }
344 348
345 $coro 349 $coro
346} 350}
347 351
348sub write_runtime { 352sub write_runtime {
353 my $guard = cf::lock_acquire "write_runtime";
354
349 my $runtime = cf::localdir . "/runtime"; 355 my $runtime = cf::localdir . "/runtime";
350 356
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 357 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 358 or return;
353 359
360 my $value = $cf::RUNTIME + 90 + 10;
354 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 361 # 10 is the runtime save interval, for a monotonic clock
362 # 60 allows for the watchdog to kill the server.
363
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 364 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 365 and return;
357 366
367 # always fsync - this file is important
358 aio_fsync $fh 368 aio_fsync $fh
359 and return; 369 and return;
360 370
361 close $fh 371 close $fh
362 or return; 372 or return;
363 373
364 aio_rename "$runtime~", $runtime 374 aio_rename "$runtime~", $runtime
365 and return; 375 and return;
366 376
367 1 377 1
378}
379
380=item cf::datalog type => key => value, ...
381
382Log a datalog packet of the given type with the given key-value pairs.
383
384=cut
385
386sub datalog($@) {
387 my ($type, %kv) = @_;
388 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368} 389}
369 390
370=back 391=back
371 392
372=cut 393=cut
747 $filename, length $$rdata, scalar @$objs; 768 $filename, length $$rdata, scalar @$objs;
748 769
749 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
751 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 772 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752 aio_fsync $fh; 773 aio_fsync $fh if $cf::USE_FSYNC;
753 close $fh; 774 close $fh;
754 775
755 if (@$objs) { 776 if (@$objs) {
756 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 777 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757 chmod SAVE_MODE, $fh; 778 chmod SAVE_MODE, $fh;
758 my $data = Storable::nfreeze { version => 1, objs => $objs }; 779 my $data = Storable::nfreeze { version => 1, objs => $objs };
759 aio_write $fh, 0, (length $data), $data, 0; 780 aio_write $fh, 0, (length $data), $data, 0;
760 aio_fsync $fh; 781 aio_fsync $fh if $cf::USE_FSYNC;
761 close $fh; 782 close $fh;
762 aio_rename "$filename.pst~", "$filename.pst"; 783 aio_rename "$filename.pst~", "$filename.pst";
763 } 784 }
764 } else { 785 } else {
765 aio_unlink "$filename.pst"; 786 aio_unlink "$filename.pst";
944} 965}
945 966
946sub path($) { 967sub path($) {
947 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 968 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948 969
949 (playerdir $login) . "/$login.pl" 970 (playerdir $login) . "/playerdata"
950} 971}
951 972
952sub find_active($) { 973sub find_active($) {
953 $cf::PLAYER{$_[0]} 974 $cf::PLAYER{$_[0]}
954 and $cf::PLAYER{$_[0]}->active 975 and $cf::PLAYER{$_[0]}->active
967 my $login = $_[0]; 988 my $login = $_[0];
968 989
969 my $guard = cf::lock_acquire "user_find:$login"; 990 my $guard = cf::lock_acquire "user_find:$login";
970 991
971 $cf::PLAYER{$_[0]} || do { 992 $cf::PLAYER{$_[0]} || do {
993 # rename old playerfiles to new ones
994 #TODO: remove when no longer required
995 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997 aio_unlink +(playerdir $login) . "/$login.pl.pst";
998 aio_unlink +(playerdir $login) . "/$login.pl";
999
972 my $pl = load_pl path $login 1000 my $pl = load_pl path $login
973 or return; 1001 or return;
974 $cf::PLAYER{$login} = $pl 1002 $cf::PLAYER{$login} = $pl
975 } 1003 }
976 } 1004 }
1013 1041
1014=cut 1042=cut
1015 1043
1016sub quit_character { 1044sub quit_character {
1017 my ($pl) = @_; 1045 my ($pl) = @_;
1046
1047 my $name = $pl->ob->name;
1018 1048
1019 $pl->{deny_save} = 1; 1049 $pl->{deny_save} = 1;
1020 $pl->password ("*"); # this should lock out the player until we nuked the dir 1050 $pl->password ("*"); # this should lock out the player until we nuked the dir
1021 1051
1022 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1052 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1027 my $path = playerdir $pl; 1057 my $path = playerdir $pl;
1028 my $temp = "$path~$cf::RUNTIME~deleting~"; 1058 my $temp = "$path~$cf::RUNTIME~deleting~";
1029 aio_rename $path, $temp; 1059 aio_rename $path, $temp;
1030 delete $cf::PLAYER{$pl->ob->name}; 1060 delete $cf::PLAYER{$pl->ob->name};
1031 $pl->destroy; 1061 $pl->destroy;
1062
1063 my $prefix = qr<^~\Q$name\E/>;
1064
1065 # nuke player maps
1066 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1067
1032 IO::AIO::aio_rmtree $temp; 1068 IO::AIO::aio_rmtree $temp;
1069}
1070
1071=item $pl->kick
1072
1073Kicks a player out of the game. This destroys the connection.
1074
1075=cut
1076
1077sub kick {
1078 my ($pl, $kicker) = @_;
1079
1080 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1081 $pl->killer ("kicked");
1082 $pl->ns->destroy;
1033} 1083}
1034 1084
1035=item cf::player::list_logins 1085=item cf::player::list_logins
1036 1086
1037Returns am arrayref of all valid playernames in the system, can take a 1087Returns am arrayref of all valid playernames in the system, can take a
1065=cut 1115=cut
1066 1116
1067sub maps($) { 1117sub maps($) {
1068 my ($pl) = @_; 1118 my ($pl) = @_;
1069 1119
1120 $pl = ref $pl ? $pl->ob->name : $pl;
1121
1070 my $files = aio_readdir playerdir $pl 1122 my $files = aio_readdir playerdir $pl
1071 or return; 1123 or return;
1072 1124
1073 my @paths; 1125 my @paths;
1074 1126
1075 for (@$files) { 1127 for (@$files) {
1076 utf8::decode $_; 1128 utf8::decode $_;
1077 next if /\.(?:pl|pst)$/; 1129 next if /\.(?:pl|pst)$/;
1078 next unless /^$PATH_SEP/o; 1130 next unless /^$PATH_SEP/o;
1079 1131
1080 s/\.map$//; 1132 push @paths, cf::map::normalise "~$pl/$_";
1081 push @paths, "~" . $pl->ob->name . "/" . $_;
1082 } 1133 }
1083 1134
1084 \@paths 1135 \@paths
1085} 1136}
1086 1137
1087=item $player->ext_reply ($msgid, $msgtype, %msg) 1138=item $player->ext_reply ($msgid, %msg)
1088 1139
1089Sends an ext reply to the player. 1140Sends an ext reply to the player.
1090 1141
1091=cut 1142=cut
1092 1143
1093sub ext_reply($$$%) { 1144sub ext_reply($$%) {
1094 my ($self, $id, %msg) = @_; 1145 my ($self, $id, %msg) = @_;
1095 1146
1096 $msg{msgid} = $id; 1147 $msg{msgid} = $id;
1097 1148
1098 $self->send ("ext " . cf::to_json \%msg); 1149 $self->send ("ext " . cf::to_json \%msg);
1150}
1151
1152=item $player->ext_event ($type, %msg)
1153
1154Sends an ext event to the client.
1155
1156=cut
1157
1158sub ext_event($$%) {
1159 my ($self, $type, %msg) = @_;
1160
1161 $self->ns->ext_event ($type, %msg);
1099} 1162}
1100 1163
1101package cf; 1164package cf;
1102 1165
1103=back 1166=back
1137 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1200 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138 (cf::region::find $rmp->{region}), $rmp->{custom} 1201 (cf::region::find $rmp->{region}), $rmp->{custom}
1139 ) 1202 )
1140} 1203}
1141 1204
1205=item cf::map->register ($regex, $prio)
1206
1207Register a handler for the map path matching the given regex at the
1208givne priority (higher is better, built-in handlers have priority 0, the
1209default).
1210
1211=cut
1212
1142sub register { 1213sub register {
1143 my (undef, $regex) = @_; 1214 my (undef, $regex, $prio) = @_;
1144 my $pkg = caller; 1215 my $pkg = caller;
1145 1216
1146 no strict; 1217 no strict;
1147 push @{"$pkg\::ISA"}, __PACKAGE__; 1218 push @{"$pkg\::ISA"}, __PACKAGE__;
1148 1219
1149 $EXT_MAP{$pkg} = qr<$regex>; 1220 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150} 1221}
1151 1222
1152# also paths starting with '/' 1223# also paths starting with '/'
1153$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1224$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154 1225
1155sub thawer_merge { 1226sub thawer_merge {
1156 my ($self, $merge) = @_; 1227 my ($self, $merge) = @_;
1157 1228
1158 # we have to keep some variables in memory intact 1229 # we have to keep some variables in memory intact
1164 $self->SUPER::thawer_merge ($merge); 1235 $self->SUPER::thawer_merge ($merge);
1165} 1236}
1166 1237
1167sub normalise { 1238sub normalise {
1168 my ($path, $base) = @_; 1239 my ($path, $base) = @_;
1240
1241 $path = "$path"; # make sure its a string
1242
1243 $path =~ s/\.map$//;
1169 1244
1170 # map plan: 1245 # map plan:
1171 # 1246 #
1172 # /! non-realised random map exit (special hack!) 1247 # /! non-realised random map exit (special hack!)
1173 # {... are special paths that are not being touched 1248 # {... are special paths that are not being touched
1201 1276
1202 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1277 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203 1278
1204 $path = normalise $path, $base; 1279 $path = normalise $path, $base;
1205 1280
1206 for my $pkg (keys %EXT_MAP) { 1281 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207 if ($path =~ $EXT_MAP{$pkg}) { 1282 if ($path =~ $EXT_MAP{$pkg}[1]) {
1208 my $self = bless cf::map::new, $pkg; 1283 my $self = bless cf::map::new, $pkg;
1209 $self->{path} = $path; $self->path ($path); 1284 $self->{path} = $path; $self->path ($path);
1210 $self->init; # pass $1 etc. 1285 $self->init; # pass $1 etc.
1211 return $self; 1286 return $self;
1212 } 1287 }
1213 } 1288 }
1214 1289
1215 Carp::carp "unable to resolve path '$path'."; 1290 Carp::carp "unable to resolve path '$path' (base '$base').";
1216 () 1291 ()
1217} 1292}
1218 1293
1219sub init { 1294sub init {
1220 my ($self) = @_; 1295 my ($self) = @_;
1235 1310
1236# the original (read-only) location 1311# the original (read-only) location
1237sub load_path { 1312sub load_path {
1238 my ($self) = @_; 1313 my ($self) = @_;
1239 1314
1240 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1315 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1241} 1316}
1242 1317
1243# the temporary/swap location 1318# the temporary/swap location
1244sub save_path { 1319sub save_path {
1245 my ($self) = @_; 1320 my ($self) = @_;
1246 1321
1247 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1322 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1323 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1249} 1324}
1250 1325
1251# the unique path, undef == no special unique path 1326# the unique path, undef == no special unique path
1252sub uniq_path { 1327sub uniq_path {
1253 my ($self) = @_; 1328 my ($self) = @_;
1275 1350
1276sub load_header_from($) { 1351sub load_header_from($) {
1277 my ($self, $path) = @_; 1352 my ($self, $path) = @_;
1278 1353
1279 utf8::encode $path; 1354 utf8::encode $path;
1280 aio_open $path, O_RDONLY, 0 1355 #aio_open $path, O_RDONLY, 0
1281 or return; 1356 # or return;
1282 1357
1283 $self->_load_header ($path) 1358 $self->_load_header ($path)
1284 or return; 1359 or return;
1285 1360
1286 $self->{load_path} = $path; 1361 $self->{load_path} = $path;
1287 1362
1288 1 1363 1
1289} 1364}
1290 1365
1291sub load_orig { 1366sub load_header_orig {
1292 my ($self) = @_; 1367 my ($self) = @_;
1293 1368
1294 $self->load_header_from ($self->load_path) 1369 $self->load_header_from ($self->load_path)
1295} 1370}
1296 1371
1297sub load_temp { 1372sub load_header_temp {
1298 my ($self) = @_; 1373 my ($self) = @_;
1299 1374
1300 $self->load_header_from ($self->save_path) 1375 $self->load_header_from ($self->save_path)
1376}
1377
1378sub prepare_temp {
1379 my ($self) = @_;
1380
1381 $self->last_access ((delete $self->{last_access})
1382 || $cf::RUNTIME); #d#
1383 # safety
1384 $self->{instantiate_time} = $cf::RUNTIME
1385 if $self->{instantiate_time} > $cf::RUNTIME;
1386}
1387
1388sub prepare_orig {
1389 my ($self) = @_;
1390
1391 $self->{load_original} = 1;
1392 $self->{instantiate_time} = $cf::RUNTIME;
1393 $self->last_access ($cf::RUNTIME);
1394 $self->instantiate;
1301} 1395}
1302 1396
1303sub load_header { 1397sub load_header {
1304 my ($self) = @_; 1398 my ($self) = @_;
1305 1399
1306 if ($self->load_temp) { 1400 if ($self->load_header_temp) {
1307 $self->last_access ((delete $self->{last_access}) 1401 $self->prepare_temp;
1308 || $cf::RUNTIME); #d#
1309 # safety
1310 $self->{instantiate_time} = $cf::RUNTIME
1311 if $self->{instantiate_time} > $cf::RUNTIME;
1312 } else { 1402 } else {
1313 $self->load_orig 1403 $self->load_header_orig
1314 or return; 1404 or return;
1315 1405 $self->prepare_orig;
1316 $self->{load_original} = 1;
1317 $self->{instantiate_time} = $cf::RUNTIME;
1318 $self->last_access ($cf::RUNTIME);
1319 $self->instantiate;
1320 } 1406 }
1321 1407
1322 1 1408 1
1323} 1409}
1324 1410
1338 $map->{last_save} = $cf::RUNTIME; 1424 $map->{last_save} = $cf::RUNTIME;
1339 1425
1340 $map->load_header 1426 $map->load_header
1341 or return; 1427 or return;
1342 1428
1343 if ($map->should_reset) { 1429 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1430 # doing this can freeze the server in a sync job, obviously
1344 $cf::WAIT_FOR_TICK->wait; 1431 #$cf::WAIT_FOR_TICK->wait;
1345 $map->reset; 1432 $map->reset;
1346 undef $guard; 1433 undef $guard;
1347 $map = find $path 1434 return find $path;
1348 or return;
1349 } 1435 }
1350 1436
1351 $cf::MAP{$path} = $map 1437 $cf::MAP{$path} = $map
1352 } 1438 }
1353} 1439}
1440
1441sub pre_load { }
1442sub post_load { }
1354 1443
1355sub load { 1444sub load {
1356 my ($self) = @_; 1445 my ($self) = @_;
1357 1446
1447 local $self->{deny_reset} = 1; # loading can take a long time
1448
1358 my $path = $self->{path}; 1449 my $path = $self->{path};
1359 my $guard = cf::lock_acquire "map_load:$path"; 1450 my $guard = cf::lock_acquire "map_load:$path";
1360 1451
1361 return if $self->in_memory != cf::MAP_SWAPPED; 1452 return if $self->in_memory != cf::MAP_SWAPPED;
1362 1453
1363 $self->in_memory (cf::MAP_LOADING); 1454 $self->in_memory (cf::MAP_LOADING);
1364 1455
1365 $self->alloc; 1456 $self->alloc;
1457
1458 $self->pre_load;
1459
1366 $self->_load_objects ($self->{load_path}, 1) 1460 $self->_load_objects ($self->{load_path}, 1)
1367 or return; 1461 or return;
1368 1462
1369 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1463 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1370 if delete $self->{load_original}; 1464 if delete $self->{load_original};
1392 unless $self->difficulty; 1486 unless $self->difficulty;
1393 Coro::cede; 1487 Coro::cede;
1394 $self->activate; 1488 $self->activate;
1395 } 1489 }
1396 1490
1491 $self->post_load;
1492
1397 $self->in_memory (cf::MAP_IN_MEMORY); 1493 $self->in_memory (cf::MAP_IN_MEMORY);
1398} 1494}
1399 1495
1400sub customise_for { 1496sub customise_for {
1401 my ($self, $ob) = @_; 1497 my ($self, $ob) = @_;
1441 1537
1442 cf::sync_job { $map->load }; 1538 cf::sync_job { $map->load };
1443} 1539}
1444 1540
1445our %MAP_PREFETCH; 1541our %MAP_PREFETCH;
1446our $MAP_PREFETCHER = Coro::async { 1542our $MAP_PREFETCHER = undef;
1447 while () {
1448 for my $path (keys %MAP_PREFETCH) {
1449 my $map = find $path
1450 or next;
1451 $map->load;
1452
1453 delete $MAP_PREFETCH{$path};
1454 }
1455 Coro::schedule;
1456 }
1457};
1458 1543
1459sub find_async { 1544sub find_async {
1460 my ($path, $origin) = @_; 1545 my ($path, $origin) = @_;
1461 1546
1462 $path = normalise $path, $origin && $origin->{path}; 1547 $path = normalise $path, $origin && $origin->{path};
1463 1548
1464 if (my $map = $cf::MAP{$path}) { 1549 if (my $map = $cf::MAP{$path}) {
1465 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1550 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466 } 1551 }
1467 1552
1468 $MAP_PREFETCH{$path} = 0; 1553 undef $MAP_PREFETCH{$path};
1554 $MAP_PREFETCHER ||= cf::async {
1555 while (%MAP_PREFETCH) {
1556 for my $path (keys %MAP_PREFETCH) {
1557 my $map = find $path
1558 or next;
1559 $map->load;
1560
1561 delete $MAP_PREFETCH{$path};
1562 }
1563 }
1564 undef $MAP_PREFETCHER;
1565 };
1469 $MAP_PREFETCHER->ready; 1566 $MAP_PREFETCHER->prio (6);
1470 1567
1471 () 1568 ()
1472} 1569}
1473 1570
1474sub save { 1571sub save {
1544 return if $self->players; 1641 return if $self->players;
1545 return if $self->isa ("ext::map_per_player");#d# 1642 return if $self->isa ("ext::map_per_player");#d#
1546 1643
1547 warn "resetting map ", $self->path;#d# 1644 warn "resetting map ", $self->path;#d#
1548 1645
1646 $self->in_memory (cf::MAP_SWAPPED);
1647
1648 # need to save uniques path
1649 unless ($self->{deny_save}) {
1650 my $uniq = $self->uniq_path; utf8::encode $uniq;
1651
1652 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1653 if $uniq;
1654 }
1655
1549 delete $cf::MAP{$self->path}; 1656 delete $cf::MAP{$self->path};
1550 1657
1551 $self->in_memory (cf::MAP_SWAPPED);
1552 $self->clear; 1658 $self->clear;
1553 1659
1554 $_->clear_links_to ($self) for values %cf::MAP; 1660 $_->clear_links_to ($self) for values %cf::MAP;
1555 1661
1556 $self->unlink_save; 1662 $self->unlink_save;
1593 for (@$files) { 1699 for (@$files) {
1594 utf8::decode $_; 1700 utf8::decode $_;
1595 next if /\.pst$/; 1701 next if /\.pst$/;
1596 next unless /^$PATH_SEP/o; 1702 next unless /^$PATH_SEP/o;
1597 1703
1598 s/\.map$//; 1704 push @paths, cf::map::normalise $_;
1599 push @paths, $_;
1600 } 1705 }
1601 1706
1602 \@paths 1707 \@paths
1603} 1708}
1604 1709
1698=cut 1803=cut
1699 1804
1700sub link_map { 1805sub link_map {
1701 unless ($LINK_MAP) { 1806 unless ($LINK_MAP) {
1702 $LINK_MAP = cf::map::find "{link}" 1807 $LINK_MAP = cf::map::find "{link}"
1703 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1808 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704 $LINK_MAP->load; 1809 $LINK_MAP->load;
1705 } 1810 }
1706 1811
1707 $LINK_MAP 1812 $LINK_MAP
1708} 1813}
1715 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1820 return if UNIVERSAL::isa $self->map, "ext::map_link";
1716 1821
1717 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1822 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718 if $self->map; 1823 if $self->map;
1719 1824
1720 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1825 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1721} 1826}
1722 1827
1723sub cf::object::player::leave_link { 1828sub cf::object::player::leave_link {
1724 my ($self, $map, $x, $y) = @_; 1829 my ($self, $map, $x, $y) = @_;
1725 1830
1747 $map->load; 1852 $map->load;
1748 $map->load_diag; 1853 $map->load_diag;
1749 1854
1750 return unless $self->contr->active; 1855 return unless $self->contr->active;
1751 $self->activate_recursive; 1856 $self->activate_recursive;
1857
1858 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1752 $self->enter_map ($map, $x, $y); 1859 $self->enter_map ($map, $x, $y);
1753} 1860}
1754 1861
1755cf::player->attach ( 1862cf::player->attach (
1756 on_logout => sub { 1863 on_logout => sub {
1769 # try to abort aborted map switching on player login :) 1876 # try to abort aborted map switching on player login :)
1770 # should happen only on crashes 1877 # should happen only on crashes
1771 if ($pl->ob->{_link_pos}) { 1878 if ($pl->ob->{_link_pos}) {
1772 $pl->ob->enter_link; 1879 $pl->ob->enter_link;
1773 (async { 1880 (async {
1774 # we need this sleep as the login has a concurrent enter_exit running
1775 # and this sleep increases chances of the player not ending up in scorn
1776 $pl->ob->reply (undef, 1881 $pl->ob->reply (undef,
1777 "There was an internal problem at your last logout, " 1882 "There was an internal problem at your last logout, "
1778 . "the server will try to bring you to your intended destination in a second.", 1883 . "the server will try to bring you to your intended destination in a second.",
1779 cf::NDI_RED); 1884 cf::NDI_RED);
1885 # we need this sleep as the login has a concurrent enter_exit running
1886 # and this sleep increases chances of the player not ending up in scorn
1780 Coro::Timer::sleep 1; 1887 Coro::Timer::sleep 1;
1781 $pl->ob->leave_link; 1888 $pl->ob->leave_link;
1782 })->prio (2); 1889 })->prio (2);
1783 } 1890 }
1784 }, 1891 },
1792 my ($self, $path, $x, $y) = @_; 1899 my ($self, $path, $x, $y) = @_;
1793 1900
1794 $self->enter_link; 1901 $self->enter_link;
1795 1902
1796 (async { 1903 (async {
1904 my $map = eval {
1797 my $map = cf::map::find $path; 1905 my $map = cf::map::find $path;
1798 $map = $map->customise_for ($self) if $map; 1906 $map = $map->customise_for ($self) if $map;
1799 1907 $map
1800# warn "entering ", $map->path, " at ($x, $y)\n" 1908 } or
1801# if $map;
1802
1803 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1909 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1804 1910
1805 $self->leave_link ($map, $x, $y); 1911 $self->leave_link ($map, $x, $y);
1806 })->prio (1); 1912 })->prio (1);
1807} 1913}
1808 1914
1839 # that depends on the exit object 1945 # that depends on the exit object
1840 1946
1841 my $rmp = parse_random_map_params $exit->msg; 1947 my $rmp = parse_random_map_params $exit->msg;
1842 1948
1843 if ($exit->map) { 1949 if ($exit->map) {
1844 $rmp->{region} = $exit->map->region_name; 1950 $rmp->{region} = $exit->region->name;
1845 $rmp->{origin_map} = $exit->map->path; 1951 $rmp->{origin_map} = $exit->map->path;
1846 $rmp->{origin_x} = $exit->x; 1952 $rmp->{origin_x} = $exit->x;
1847 $rmp->{origin_y} = $exit->y; 1953 $rmp->{origin_y} = $exit->y;
1848 } 1954 }
1849 1955
1866sub cf::object::player::enter_exit { 1972sub cf::object::player::enter_exit {
1867 my ($self, $exit) = @_; 1973 my ($self, $exit) = @_;
1868 1974
1869 return unless $self->type == cf::PLAYER; 1975 return unless $self->type == cf::PLAYER;
1870 1976
1977 if ($exit->slaying eq "/!") {
1978 #TODO: this should de-fi-ni-te-ly not be a sync-job
1979 # the problem is that $exit might not survive long enough
1980 # so it needs to be done right now, right here
1981 cf::sync_job { prepare_random_map $exit };
1982 }
1983
1984 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1985 my $hp = $exit->stats->hp;
1986 my $sp = $exit->stats->sp;
1987
1871 $self->enter_link; 1988 $self->enter_link;
1872 1989
1873 (async { 1990 (async {
1874 $self->deactivate_recursive; # just to be sure 1991 $self->deactivate_recursive; # just to be sure
1875 unless (eval { 1992 unless (eval {
1876 prepare_random_map $exit 1993 $self->goto ($slaying, $hp, $sp);
1877 if $exit->slaying eq "/!";
1878
1879 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1880 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1881 1994
1882 1; 1995 1;
1883 }) { 1996 }) {
1884 $self->message ("Something went wrong deep within the crossfire server. " 1997 $self->message ("Something went wrong deep within the crossfire server. "
1885 . "I'll try to bring you back to the map you were before. " 1998 . "I'll try to bring you back to the map you were before. "
1886 . "Please report this to the dungeon master!", 1999 . "Please report this to the dungeon master!",
1887 cf::NDI_UNIQUE | cf::NDI_RED); 2000 cf::NDI_UNIQUE | cf::NDI_RED);
1888 2001
1889 warn "ERROR in enter_exit: $@"; 2002 warn "ERROR in enter_exit: $@";
1890 $self->leave_link; 2003 $self->leave_link;
1891 } 2004 }
1892 })->prio (1); 2005 })->prio (1);
1905 2018
1906sub cf::client::send_drawinfo { 2019sub cf::client::send_drawinfo {
1907 my ($self, $text, $flags) = @_; 2020 my ($self, $text, $flags) = @_;
1908 2021
1909 utf8::encode $text; 2022 utf8::encode $text;
1910 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2023 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1911} 2024}
1912 2025
2026=item $client->ext_event ($type, %msg)
2027
2028Sends an exti event to the client.
2029
2030=cut
2031
2032sub cf::client::ext_event($$%) {
2033 my ($self, $type, %msg) = @_;
2034
2035 $msg{msgtype} = "event_$type";
2036 $self->send_packet ("ext " . cf::to_json \%msg);
2037}
1913 2038
1914=item $success = $client->query ($flags, "text", \&cb) 2039=item $success = $client->query ($flags, "text", \&cb)
1915 2040
1916Queues a query to the client, calling the given callback with 2041Queues a query to the client, calling the given callback with
1917the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2042the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1946 # get handled first 2071 # get handled first
1947 my $queue = delete $ns->{query_queue} 2072 my $queue = delete $ns->{query_queue}
1948 or return; # be conservative, not sure how that can happen, but we saw a crash here 2073 or return; # be conservative, not sure how that can happen, but we saw a crash here
1949 2074
1950 (shift @$queue)->[1]->($msg); 2075 (shift @$queue)->[1]->($msg);
2076 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1951 2077
1952 push @{ $ns->{query_queue} }, @$queue; 2078 push @{ $ns->{query_queue} }, @$queue;
1953 2079
1954 if (@{ $ns->{query_queue} } == @$queue) { 2080 if (@{ $ns->{query_queue} } == @$queue) {
1955 if (@$queue) { 2081 if (@$queue) {
2013 2139
2014# here we export the classes and methods available to script code 2140# here we export the classes and methods available to script code
2015 2141
2016=pod 2142=pod
2017 2143
2018The following fucntions and emthods are available within a safe environment: 2144The following functions and methods are available within a safe environment:
2019 2145
2020 cf::object contr pay_amount pay_player map 2146 cf::object contr pay_amount pay_player map
2021 cf::object::player player 2147 cf::object::player player
2022 cf::player peaceful 2148 cf::player peaceful
2023 cf::map trigger 2149 cf::map trigger
2116The parameter C<$family> should best start with the name of the extension 2242The parameter C<$family> should best start with the name of the extension
2117using it, it should be unique. 2243using it, it should be unique.
2118 2244
2119=over 4 2245=over 4
2120 2246
2121=item $hashref = cf::db_get $family
2122
2123Return a hashref for use by the extension C<$family>, which can be
2124modified. After modifications, you have to call C<cf::db_dirty> or
2125C<cf::db_sync>.
2126
2127=item $value = cf::db_get $family => $key 2247=item $value = cf::db_get $family => $key
2128 2248
2129Returns a single value from the database 2249Returns a single value from the database.
2130
2131=item cf::db_put $family => $hashref
2132
2133Stores the given family hashref into the database. Updates are delayed, if
2134you want the data to be synced to disk immediately, use C<cf::db_sync>.
2135 2250
2136=item cf::db_put $family => $key => $value 2251=item cf::db_put $family => $key => $value
2137 2252
2138Stores the given C<$value> in the family hash. Updates are delayed, if you 2253Stores the given C<$value> in the family.
2139want the data to be synced to disk immediately, use C<cf::db_sync>.
2140
2141=item cf::db_dirty
2142
2143Marks the database as dirty, to be updated at a later time.
2144
2145=item cf::db_sync
2146
2147Immediately write the database to disk I<if it is dirty>.
2148 2254
2149=cut 2255=cut
2150 2256
2151our $DB; 2257our $DB;
2152 2258
2153{ 2259sub db_init {
2260 unless ($DB) {
2261 $DB = BDB::db_create $DB_ENV;
2262
2263 cf::sync_job {
2264 eval {
2265 $DB->set_flags (BDB::CHKSUM);
2266
2267 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269 cf::cleanup "db_open(db): $!" if $!;
2270 };
2271 cf::cleanup "db_open(db): $@" if $@;
2272 };
2273
2154 my $path = cf::localdir . "/database.pst"; 2274 my $path = cf::localdir . "/database.pst";
2275 if (stat $path) {
2276 cf::sync_job {
2277 my $pst = Storable::retrieve $path;
2155 2278
2156 sub db_load() { 2279 cf::db_put (board => data => $pst->{board});
2157 $DB = stat $path ? Storable::retrieve $path : { }; 2280 cf::db_put (guildrules => data => $pst->{guildrules});
2158 } 2281 cf::db_put (rent => balance => $pst->{rent}{balance});
2282 BDB::db_env_txn_checkpoint $DB_ENV;
2159 2283
2160 my $pid; 2284 unlink $path;
2161
2162 sub db_save() {
2163 waitpid $pid, 0 if $pid;
2164 if (0 == ($pid = fork)) {
2165 $DB->{_meta}{version} = 1;
2166 Storable::nstore $DB, "$path~";
2167 rename "$path~", $path;
2168 cf::_exit 0 if defined $pid;
2169 } 2285 };
2170 }
2171
2172 my $dirty;
2173
2174 sub db_sync() {
2175 db_save if $dirty;
2176 undef $dirty;
2177 }
2178
2179 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2180 db_sync;
2181 });
2182
2183 sub db_dirty() {
2184 $dirty = 1;
2185 $idle->start;
2186 }
2187
2188 sub db_get($;$) {
2189 @_ >= 2
2190 ? $DB->{$_[0]}{$_[1]}
2191 : ($DB->{$_[0]} ||= { })
2192 }
2193
2194 sub db_put($$;$) {
2195 if (@_ >= 3) {
2196 $DB->{$_[0]}{$_[1]} = $_[2];
2197 } else {
2198 $DB->{$_[0]} = $_[1];
2199 }
2200 db_dirty;
2201 }
2202
2203 cf::global->attach (
2204 prio => 10000,
2205 on_cleanup => sub {
2206 db_sync;
2207 }, 2286 }
2208 ); 2287 }
2288}
2289
2290sub db_get($$) {
2291 my $key = "$_[0]/$_[1]";
2292
2293 cf::sync_job {
2294 BDB::db_get $DB, undef, $key, my $data;
2295
2296 $! ? ()
2297 : Compress::LZF::sthaw $data
2298 }
2299}
2300
2301sub db_put($$$) {
2302 BDB::dbreq_pri 4;
2303 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2209} 2304}
2210 2305
2211############################################################################# 2306#############################################################################
2212# the server's main() 2307# the server's init and main functions
2308
2309sub load_facedata {
2310 my $path = sprintf "%s/facedata", cf::datadir;
2311
2312 warn "loading facedata from $path\n";
2313
2314 my $facedata;
2315 0 < aio_load $path, $facedata
2316 or die "$path: $!";
2317
2318 $facedata = Coro::Storable::thaw $facedata;
2319
2320 $facedata->{version} == 2
2321 or cf::cleanup "$path: version mismatch, cannot proceed.";
2322
2323 {
2324 my $faces = $facedata->{faceinfo};
2325
2326 while (my ($face, $info) = each %$faces) {
2327 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2328 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2329 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2330 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2331 Coro::cede;
2332 }
2333
2334 while (my ($face, $info) = each %$faces) {
2335 next unless $info->{smooth};
2336 my $idx = cf::face::find $face
2337 or next;
2338 if (my $smooth = cf::face::find $info->{smooth}) {
2339 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2340 } else {
2341 warn "smooth face '$info->{smooth}' not found for face '$face'";
2342 }
2343 Coro::cede;
2344 }
2345 }
2346
2347 {
2348 my $anims = $facedata->{animinfo};
2349
2350 while (my ($anim, $info) = each %$anims) {
2351 cf::anim::set $anim, $info->{frames}, $info->{facings};
2352 Coro::cede;
2353 }
2354
2355 cf::anim::invalidate_all; # d'oh
2356 }
2357
2358 1
2359}
2360
2361sub reload_resources {
2362 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2363 or die "unable to load regions file\n";#d#
2364 load_facedata
2365 or die "unable to load facedata\n";#d#
2366}
2367
2368sub init {
2369 reload_resources;
2370}
2213 2371
2214sub cfg_load { 2372sub cfg_load {
2215 open my $fh, "<:utf8", cf::confdir . "/config" 2373 open my $fh, "<:utf8", cf::confdir . "/config"
2216 or return; 2374 or return;
2217 2375
2240 Event::one_event; 2398 Event::one_event;
2241 })->prio (Coro::PRIO_MAX); 2399 })->prio (Coro::PRIO_MAX);
2242 }; 2400 };
2243 2401
2244 cfg_load; 2402 cfg_load;
2245 db_load; 2403 db_init;
2246 load_extensions; 2404 load_extensions;
2405
2406 $TICK_WATCHER->start;
2247 Event::loop; 2407 Event::loop;
2248} 2408}
2249 2409
2250############################################################################# 2410#############################################################################
2251# initialisation and cleanup 2411# initialisation and cleanup
2252 2412
2253# install some emergency cleanup handlers 2413# install some emergency cleanup handlers
2254BEGIN { 2414BEGIN {
2255 for my $signal (qw(INT HUP TERM)) { 2415 for my $signal (qw(INT HUP TERM)) {
2256 Event->signal ( 2416 Event->signal (
2417 reentrant => 0,
2257 data => WF_AUTOCANCEL, 2418 data => WF_AUTOCANCEL,
2258 signal => $signal, 2419 signal => $signal,
2420 prio => 0,
2259 cb => sub { 2421 cb => sub {
2260 cf::cleanup "SIG$signal"; 2422 cf::cleanup "SIG$signal";
2261 }, 2423 },
2262 ); 2424 );
2263 } 2425 }
2264} 2426}
2285 my $map = $cf::MAP{$path} or next; 2447 my $map = $cf::MAP{$path} or next;
2286 $map->valid or next; 2448 $map->valid or next;
2287 $map->save; 2449 $map->save;
2288 } 2450 }
2289 warn "end emergency map save\n"; 2451 warn "end emergency map save\n";
2452
2453 warn "begin emergency database checkpoint\n";
2454 BDB::db_env_txn_checkpoint $DB_ENV;
2455 warn "end emergency database checkpoint\n";
2290 }; 2456 };
2291 2457
2292 warn "leave emergency perl save\n"; 2458 warn "leave emergency perl save\n";
2459}
2460
2461sub post_cleanup {
2462 my ($make_core) = @_;
2463
2464 warn Carp::longmess "post_cleanup backtrace"
2465 if $make_core;
2293} 2466}
2294 2467
2295sub reload() { 2468sub reload() {
2296 # can/must only be called in main 2469 # can/must only be called in main
2297 if ($Coro::current != $Coro::main) { 2470 if ($Coro::current != $Coro::main) {
2298 warn "can only reload from main coroutine\n"; 2471 warn "can only reload from main coroutine";
2299 return; 2472 return;
2300 } 2473 }
2301 2474
2302 warn "reloading..."; 2475 warn "reloading...";
2303 2476
2304 warn "freezing server"; 2477 warn "entering sync_job";
2305 my $guard = freeze_mainloop; 2478
2479 cf::sync_job {
2480 cf::write_runtime; # external watchdog should not bark
2306 cf::emergency_save; 2481 cf::emergency_save;
2482 cf::write_runtime; # external watchdog should not bark
2307 2483
2308 warn "sync database to disk"; 2484 warn "syncing database to disk";
2309 cf::db_sync; 2485 BDB::db_env_txn_checkpoint $DB_ENV;
2310 IO::AIO::flush;
2311 2486
2312 eval {
2313 # if anything goes wrong in here, we should simply crash as we already saved 2487 # if anything goes wrong in here, we should simply crash as we already saved
2314 2488
2315 warn "cancel all watchers"; 2489 warn "cancelling all WF_AUTOCANCEL watchers";
2316 for (Event::all_watchers) { 2490 for (Event::all_watchers) {
2317 $_->cancel if $_->data & WF_AUTOCANCEL; 2491 $_->cancel if $_->data & WF_AUTOCANCEL;
2318 } 2492 }
2319 2493
2494 warn "flushing outstanding aio requests";
2495 for (;;) {
2496 BDB::flush;
2497 IO::AIO::flush;
2498 Coro::cede;
2499 last unless IO::AIO::nreqs || BDB::nreqs;
2500 warn "iterate...";
2501 }
2502
2503 ++$RELOAD;
2504
2320 warn "cancel all extension coros"; 2505 warn "cancelling all extension coros";
2321 $_->cancel for values %EXT_CORO; 2506 $_->cancel for values %EXT_CORO;
2322 %EXT_CORO = (); 2507 %EXT_CORO = ();
2323 2508
2324 warn "remove commands"; 2509 warn "removing commands";
2325 %COMMAND = (); 2510 %COMMAND = ();
2326 2511
2327 warn "remove ext commands"; 2512 warn "removing ext commands";
2328 %EXTCMD = (); 2513 %EXTCMD = ();
2329 2514
2330 warn "unload/nuke all extensions"; 2515 warn "unloading/nuking all extensions";
2331 for my $pkg (@EXTS) { 2516 for my $pkg (@EXTS) {
2332 warn "... unloading $pkg"; 2517 warn "... unloading $pkg";
2333 2518
2334 if (my $cb = $pkg->can ("unload")) { 2519 if (my $cb = $pkg->can ("unload")) {
2335 eval { 2520 eval {
2340 2525
2341 warn "... nuking $pkg"; 2526 warn "... nuking $pkg";
2342 Symbol::delete_package $pkg; 2527 Symbol::delete_package $pkg;
2343 } 2528 }
2344 2529
2345 warn "unload all perl modules loaded from $LIBDIR"; 2530 warn "unloading all perl modules loaded from $LIBDIR";
2346 while (my ($k, $v) = each %INC) { 2531 while (my ($k, $v) = each %INC) {
2347 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2532 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2348 2533
2349 warn "removing <$k>"; 2534 warn "... unloading $k";
2350 delete $INC{$k}; 2535 delete $INC{$k};
2351 2536
2352 $k =~ s/\.pm$//; 2537 $k =~ s/\.pm$//;
2353 $k =~ s/\//::/g; 2538 $k =~ s/\//::/g;
2354 2539
2357 } 2542 }
2358 2543
2359 Symbol::delete_package $k; 2544 Symbol::delete_package $k;
2360 } 2545 }
2361 2546
2362 warn "get rid of safe::, as good as possible"; 2547 warn "getting rid of safe::, as good as possible";
2363 Symbol::delete_package "safe::$_" 2548 Symbol::delete_package "safe::$_"
2364 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2549 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2365 2550
2366 warn "unload cf.pm \"a bit\""; 2551 warn "unloading cf.pm \"a bit\"";
2367 delete $INC{"cf.pm"}; 2552 delete $INC{"cf.pm"};
2368 2553
2369 # don't, removes xs symbols, too, 2554 # don't, removes xs symbols, too,
2370 # and global variables created in xs 2555 # and global variables created in xs
2371 #Symbol::delete_package __PACKAGE__; 2556 #Symbol::delete_package __PACKAGE__;
2372 2557
2558 warn "unload completed, starting to reload now";
2559
2373 warn "reloading cf.pm"; 2560 warn "reloading cf.pm";
2374 require cf; 2561 require cf;
2375 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2562 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2376 2563
2377 warn "load config and database again"; 2564 warn "loading config and database again";
2378 cf::cfg_load; 2565 cf::cfg_load;
2379 cf::db_load;
2380 2566
2381 warn "load extensions"; 2567 warn "loading extensions";
2382 cf::load_extensions; 2568 cf::load_extensions;
2383 2569
2384 warn "reattach attachments to objects/players"; 2570 warn "reattaching attachments to objects/players";
2385 _global_reattach; 2571 _global_reattach; # objects, sockets
2386 warn "reattach attachments to maps"; 2572 warn "reattaching attachments to maps";
2387 reattach $_ for values %MAP; 2573 reattach $_ for values %MAP;
2388 }; 2574 warn "reattaching attachments to players";
2575 reattach $_ for values %PLAYER;
2389 2576
2390 if ($@) { 2577 warn "loading reloadable resources";
2578 reload_resources;
2579
2580 warn "leaving sync_job";
2581
2582 1
2583 } or do {
2391 warn $@; 2584 warn $@;
2392 warn "error while reloading, exiting."; 2585 warn "error while reloading, exiting.";
2393 exit 1; 2586 exit 1;
2394 } 2587 };
2395 2588
2396 warn "reloaded"; 2589 warn "reloaded";
2397}; 2590};
2398 2591
2399our $RELOAD_WATCHER; # used only during reload 2592our $RELOAD_WATCHER; # used only during reload
2405 $who->message ("reloading server."); 2598 $who->message ("reloading server.");
2406 2599
2407 # doing reload synchronously and two reloads happen back-to-back, 2600 # doing reload synchronously and two reloads happen back-to-back,
2408 # coro crashes during coro_state_free->destroy here. 2601 # coro crashes during coro_state_free->destroy here.
2409 2602
2410 $RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub { 2603 $RELOAD_WATCHER ||= Event->timer (
2604 reentrant => 0,
2605 after => 0,
2606 data => WF_AUTOCANCEL,
2607 cb => sub {
2411 reload; 2608 reload;
2412 undef $RELOAD_WATCHER; 2609 undef $RELOAD_WATCHER;
2610 },
2413 }); 2611 );
2414 } 2612 }
2415}; 2613};
2416 2614
2417unshift @INC, $LIBDIR; 2615unshift @INC, $LIBDIR;
2616
2617my $bug_warning = 0;
2418 2618
2419$TICK_WATCHER = Event->timer ( 2619$TICK_WATCHER = Event->timer (
2420 reentrant => 0, 2620 reentrant => 0,
2621 parked => 1,
2421 prio => 0, 2622 prio => 0,
2422 at => $NEXT_TICK || $TICK, 2623 at => $NEXT_TICK || $TICK,
2423 data => WF_AUTOCANCEL, 2624 data => WF_AUTOCANCEL,
2424 cb => sub { 2625 cb => sub {
2626 if ($Coro::current != $Coro::main) {
2627 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628 unless ++$bug_warning > 10;
2629 return;
2630 }
2631
2425 $NOW = Event::time; 2632 $NOW = Event::time;
2426 2633
2427 cf::server_tick; # one server iteration 2634 cf::server_tick; # one server iteration
2428 $RUNTIME += $TICK; 2635 $RUNTIME += $TICK;
2429 $NEXT_TICK += $TICK; 2636 $NEXT_TICK += $TICK;
2430 2637
2638 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639 $NEXT_RUNTIME_WRITE = $NOW + 10;
2640 Coro::async_pool {
2641 write_runtime
2642 or warn "ERROR: unable to write runtime file: $!";
2643 };
2644 }
2645
2431 $WAIT_FOR_TICK->broadcast; 2646 $WAIT_FOR_TICK->broadcast;
2432 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2647 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649# my $AFTER = Event::time;
2650# warn $AFTER - $NOW;#d#
2433 2651
2434 # if we are delayed by four ticks or more, skip them all 2652 # if we are delayed by four ticks or more, skip them all
2435 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2653 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2436 2654
2437 $TICK_WATCHER->at ($NEXT_TICK); 2655 $TICK_WATCHER->at ($NEXT_TICK);
2438 $TICK_WATCHER->start; 2656 $TICK_WATCHER->start;
2439 }, 2657 },
2440); 2658);
2441 2659
2660{
2661 BDB::max_poll_time $TICK * 0.1;
2662 $BDB_POLL_WATCHER = Event->io (
2663 reentrant => 0,
2664 fd => BDB::poll_fileno,
2665 poll => 'r',
2666 prio => 0,
2667 data => WF_AUTOCANCEL,
2668 cb => \&BDB::poll_cb,
2669 );
2670 BDB::min_parallel 8;
2671
2672 BDB::set_sync_prepare {
2673 my $status;
2674 my $current = $Coro::current;
2675 (
2676 sub {
2677 $status = $!;
2678 $current->ready; undef $current;
2679 },
2680 sub {
2681 Coro::schedule while defined $current;
2682 $! = $status;
2683 },
2684 )
2685 };
2686
2687 unless ($DB_ENV) {
2688 $DB_ENV = BDB::db_env_create;
2689
2690 cf::sync_job {
2691 eval {
2692 BDB::db_env_open
2693 $DB_ENV,
2694 $BDB_ENV_DIR,
2695 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697 0666;
2698
2699 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2700
2701 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702 $DB_ENV->set_lk_detect;
2703 };
2704
2705 cf::cleanup "db_env_open(db): $@" if $@;
2706 };
2707 }
2708}
2709
2710{
2711 IO::AIO::min_parallel 8;
2712
2713 undef $Coro::AIO::WATCHER;
2442IO::AIO::max_poll_time $TICK * 0.2; 2714 IO::AIO::max_poll_time $TICK * 0.1;
2443
2444$AIO_POLL_WATCHER = Event->io ( 2715 $AIO_POLL_WATCHER = Event->io (
2445 fd => IO::AIO::poll_fileno, 2716 reentrant => 0,
2446 poll => 'r',
2447 prio => 5,
2448 data => WF_AUTOCANCEL,
2449 cb => \&IO::AIO::poll_cb,
2450);
2451
2452$WRITE_RUNTIME_WATCHER = Event->timer (
2453 data => WF_AUTOCANCEL, 2717 data => WF_AUTOCANCEL,
2454 after => 0, 2718 fd => IO::AIO::poll_fileno,
2455 interval => 10, 2719 poll => 'r',
2456 cb => sub { 2720 prio => 6,
2457 (Coro::unblock_sub { 2721 cb => \&IO::AIO::poll_cb,
2458 write_runtime 2722 );
2459 or warn "ERROR: unable to write runtime file: $!"; 2723}
2460 })->();
2461 },
2462);
2463 2724
2464END { cf::emergency_save } 2725END { cf::emergency_save }
2465 2726
24661 27271
2467 2728

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