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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.157 by root, Wed Jan 10 01:16:54 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 3.3 ();
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 Data::Dumper;
20use Digest::MD5; 21use Digest::MD5;
21use Fcntl; 22use Fcntl;
22use IO::AIO 2.31 (); 23use IO::AIO 2.32 ();
23use YAML::Syck (); 24use YAML::Syck ();
24use Time::HiRes; 25use Time::HiRes;
25 26
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 27use Event; $Event::Eval = 1; # no idea why this is required, but it is
27 28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 32$YAML::Syck::ImplicitUnicode = 1;
30 33
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 35
35our %COMMAND = (); 36our %COMMAND = ();
36our %COMMAND_TIME = (); 37our %COMMAND_TIME = ();
37our %EXTCMD = (); 38our %EXTCMD = ();
38 39
47our %CFG; 48our %CFG;
48 49
49our $UPTIME; $UPTIME ||= time; 50our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 51our $RUNTIME;
51 52
53our %PLAYER; # all users
52our %MAP; # all maps 54our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 55our $LINK_MAP; # the special {link} map
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 56our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 57our %EXT_CORO; # coroutines bound to extensions
58
59our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
60our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
57 61
58binmode STDOUT; 62binmode STDOUT;
59binmode STDERR; 63binmode STDERR;
60 64
61# read virtual server time, if available 65# read virtual server time, if available
71mkdir cf::localdir . "/" . cf::uniquedir; 75mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 76mkdir $RANDOM_MAPS;
73 77
74# a special map that is always available 78# a special map that is always available
75our $LINK_MAP; 79our $LINK_MAP;
76 80our $EMERGENCY_POSITION;
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 81
79############################################################################# 82#############################################################################
80 83
81=head2 GLOBAL VARIABLES 84=head2 GLOBAL VARIABLES
82 85
106 109
107=item %cf::CFG 110=item %cf::CFG
108 111
109Configuration for the server, loaded from C</etc/crossfire/config>, or 112Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 113from wherever your confdir points to.
114
115=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
116
117These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
118or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
119processing has been done. Call C<< ->wait >> on them to maximise the
120window of cpu time available, or simply to synchronise to the server tick.
111 121
112=back 122=back
113 123
114=cut 124=cut
115 125
119 utf8::encode $msg; 129 utf8::encode $msg;
120 130
121 $msg .= "\n" 131 $msg .= "\n"
122 unless $msg =~ /\n$/; 132 unless $msg =~ /\n$/;
123 133
124 LOG llevError, "cfperl: $msg"; 134 LOG llevError, $msg;
125 }; 135 };
126} 136}
127 137
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 138@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 139@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155 165
156=head2 UTILITY FUNCTIONS 166=head2 UTILITY FUNCTIONS
157 167
158=over 4 168=over 4
159 169
170=item dumpval $ref
171
160=cut 172=cut
173
174sub dumpval {
175 eval {
176 local $SIG{__DIE__};
177 my $d;
178 if (1) {
179 $d = new Data::Dumper([$_[0]], ["*var"]);
180 $d->Terse(1);
181 $d->Indent(2);
182 $d->Quotekeys(0);
183 $d->Useqq(1);
184 #$d->Bless(...);
185 $d->Seen($_[1]) if @_ > 1;
186 $d = $d->Dump();
187 }
188 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189 $d
190 } || "[unable to dump $_[0]: '$@']";
191}
161 192
162use JSON::Syck (); # TODO# replace by JSON::PC once working 193use JSON::Syck (); # TODO# replace by JSON::PC once working
163 194
164=item $ref = cf::from_json $json 195=item $ref = cf::from_json $json
165 196
180 211
181sub to_json($) { 212sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 213 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 214 JSON::Syck::Dump $_[0]
184} 215}
216
217=item cf::lock_wait $string
218
219Wait until the given lock is available. See cf::lock_acquire.
220
221=item my $lock = cf::lock_acquire $string
222
223Wait until the given lock is available and then acquires it and returns
224a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225for example when the coroutine gets canceled), the lock is automatically
226returned.
227
228Lock names should begin with a unique identifier (for example, cf::map::find
229uses map_find and cf::map::load uses map_load).
230
231=cut
232
233our %LOCK;
234
235sub lock_wait($) {
236 my ($key) = @_;
237
238 # wait for lock, if any
239 while ($LOCK{$key}) {
240 push @{ $LOCK{$key} }, $Coro::current;
241 Coro::schedule;
242 }
243}
244
245sub lock_acquire($) {
246 my ($key) = @_;
247
248 # wait, to be sure we are not locked
249 lock_wait $key;
250
251 $LOCK{$key} = [];
252
253 Coro::guard {
254 # wake up all waiters, to be on the safe side
255 $_->ready for @{ delete $LOCK{$key} };
256 }
257}
258
259sub freeze_mainloop {
260 return unless $TICK_WATCHER->is_active;
261
262 my $guard = Coro::guard { $TICK_WATCHER->start };
263 $TICK_WATCHER->stop;
264 $guard
265}
266
267=item cf::async { BLOCK }
268
269Currently the same as Coro::async_pool, meaning you cannot use
270C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
271thing you are allowed to do is call C<prio> on it.
272
273=cut
274
275BEGIN { *async = \&Coro::async_pool }
185 276
186=item cf::sync_job { BLOCK } 277=item cf::sync_job { BLOCK }
187 278
188The design of crossfire+ requires that the main coro ($Coro::main) is 279The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 280always able to handle events or runnable, as crossfire+ is only partly
203 # this is the main coro, too bad, we have to block 294 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 295 # till the operation succeeds, freezing the server :/
205 296
206 # TODO: use suspend/resume instead 297 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 298 # (but this is cancel-safe)
208 local $FREEZE = 1; 299 my $freeze_guard = freeze_mainloop;
209 300
210 my $busy = 1; 301 my $busy = 1;
211 my @res; 302 my @res;
212 303
213 (Coro::async { 304 (async {
214 @res = eval { $job->() }; 305 @res = eval { $job->() };
215 warn $@ if $@; 306 warn $@ if $@;
216 undef $busy; 307 undef $busy;
217 })->prio (Coro::PRIO_MAX); 308 })->prio (Coro::PRIO_MAX);
218 309
219 while ($busy) { 310 while ($busy) {
220 Coro::cede_notself; 311 Coro::cede or Event::one_event;
221 Event::one_event unless Coro::nready;
222 } 312 }
223 313
224 wantarray ? @res : $res[0] 314 wantarray ? @res : $res[0]
225 } else { 315 } else {
226 # we are in another coroutine, how wonderful, everything just works 316 # we are in another coroutine, how wonderful, everything just works
227 317
228 $job->() 318 $job->()
229 } 319 }
230} 320}
231 321
232=item $coro = cf::coro { BLOCK } 322=item $coro = cf::async_ext { BLOCK }
233 323
234Creates and returns a new coro. This coro is automcatially being canceled 324Like async, but this coro is automcatially being canceled when the
235when the extension calling this is being unloaded. 325extension calling this is being unloaded.
236 326
237=cut 327=cut
238 328
239sub coro(&) { 329sub async_ext(&) {
240 my $cb = shift; 330 my $cb = shift;
241 331
242 my $coro; $coro = async { 332 my $coro = &Coro::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 333
249 $coro->on_destroy (sub { 334 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 335 delete $EXT_CORO{$coro+0};
251 }); 336 });
252 $EXT_CORO{$coro+0} = $coro; 337 $EXT_CORO{$coro+0} = $coro;
281=cut 366=cut
282 367
283############################################################################# 368#############################################################################
284 369
285package cf::path; 370package cf::path;
371
372# used to convert map paths into valid unix filenames by repalcing / by ∕
373our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
286 374
287sub new { 375sub new {
288 my ($class, $path, $base) = @_; 376 my ($class, $path, $base) = @_;
289 377
290 $path = $path->as_string if ref $path; 378 $path = $path->as_string if ref $path;
354# } 442# }
355} 443}
356 444
357# escape the /'s in the path 445# escape the /'s in the path
358sub _escaped_path { 446sub _escaped_path {
359 # ∕ is U+2215
360 (my $path = $_[0]{path}) =~ s/\///g; 447 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
361 $path 448 $path
362} 449}
363 450
364# the original (read-only) location 451# the original (read-only) location
365sub load_path { 452sub load_path {
992}; 1079};
993 1080
994cf::map->attach (prio => -10000, package => cf::mapsupport::); 1081cf::map->attach (prio => -10000, package => cf::mapsupport::);
995 1082
996############################################################################# 1083#############################################################################
997# load/save perl data associated with player->ob objects
998
999sub all_objects(@) {
1000 @_, map all_objects ($_->inv), @_
1001}
1002
1003# TODO: compatibility cruft, remove when no longer needed
1004cf::player->attach (
1005 on_load => sub {
1006 my ($pl, $path) = @_;
1007
1008 for my $o (all_objects $pl->ob) {
1009 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010 $o->set_ob_key_value ("_perl_data");
1011
1012 %$o = %{ Storable::thaw pack "H*", $value };
1013 }
1014 }
1015 },
1016);
1017
1018#############################################################################
1019 1084
1020=head2 CORE EXTENSIONS 1085=head2 CORE EXTENSIONS
1021 1086
1022Functions and methods that extend core crossfire objects. 1087Functions and methods that extend core crossfire objects.
1023 1088
1089=cut
1090
1091package cf::player;
1092
1093use Coro::AIO;
1094
1024=head3 cf::player 1095=head3 cf::player
1025 1096
1026=over 4 1097=over 4
1027 1098
1028=item cf::player::exists $login 1099=item cf::player::find $login
1029 1100
1030Returns true when the given account exists. 1101Returns the given player object, loading it if necessary (might block).
1031 1102
1032=cut 1103=cut
1033 1104
1034sub cf::player::exists($) { 1105sub playerdir($) {
1035 cf::player::find $_[0] 1106 cf::localdir
1036 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1107 . "/"
1108 . cf::playerdir
1109 . "/"
1110 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1111}
1112
1113sub path($) {
1114 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115
1116 (playerdir $login) . "/$login.pl"
1117}
1118
1119sub find_active($) {
1120 $cf::PLAYER{$_[0]}
1121 and $cf::PLAYER{$_[0]}->active
1122 and $cf::PLAYER{$_[0]}
1123}
1124
1125sub exists($) {
1126 my ($login) = @_;
1127
1128 $cf::PLAYER{$login}
1129 or cf::sync_job { !aio_stat $login }
1130}
1131
1132sub find($) {
1133 return $cf::PLAYER{$_[0]} || do {
1134 my $login = $_[0];
1135
1136 my $guard = cf::lock_acquire "user_find:$login";
1137
1138 $cf::PLAYER{$_[0]} || do {
1139 my $pl = load_pl path $login
1140 or return;
1141 $cf::PLAYER{$login} = $pl
1142 }
1143 }
1144}
1145
1146sub save($) {
1147 my ($pl) = @_;
1148
1149 return if $pl->{deny_save};
1150
1151 my $path = path $pl;
1152 my $guard = cf::lock_acquire "user_save:$path";
1153
1154 return if $pl->{deny_save};
1155
1156 aio_mkdir playerdir $pl, 0770;
1157 $pl->{last_save} = $cf::RUNTIME;
1158
1159 $pl->save_pl ($path);
1160 Coro::cede;
1161}
1162
1163sub new($) {
1164 my ($login) = @_;
1165
1166 my $self = create;
1167
1168 $self->ob->name ($login);
1169 $self->{deny_save} = 1;
1170
1171 $cf::PLAYER{$login} = $self;
1172
1173 $self
1174}
1175
1176=item $pl->quit_character
1177
1178Nukes the player without looking back. If logged in, the connection will
1179be destroyed. May block for a long time.
1180
1181=cut
1182
1183sub quit_character {
1184 my ($pl) = @_;
1185
1186 $pl->{deny_save} = 1;
1187 $pl->password ("*"); # this should lock out the player until we nuked the dir
1188
1189 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1190 $pl->deactivate;
1191 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1192 $pl->ns->destroy if $pl->ns;
1193
1194 my $path = playerdir $pl;
1195 my $temp = "$path~$cf::RUNTIME~deleting~";
1196 aio_rename $path, $temp;
1197 delete $cf::PLAYER{$pl->ob->name};
1198 $pl->destroy;
1199 IO::AIO::aio_rmtree $temp;
1200}
1201
1202=item cf::player::list_logins
1203
1204Returns am arrayref of all valid playernames in the system, can take a
1205while and may block, so not sync_job-capable, ever.
1206
1207=cut
1208
1209sub list_logins {
1210 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1211 or return [];
1212
1213 my @logins;
1214
1215 for my $login (@$dirs) {
1216 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1217 aio_read $fh, 0, 512, my $buf, 0 or next;
1218 $buf !~ /^password -------------$/m or next; # official not-valid tag
1219
1220 utf8::decode $login;
1221 push @logins, $login;
1222 }
1223
1224 \@logins
1225}
1226
1227=item $player->maps
1228
1229Returns an arrayref of cf::path's of all maps that are private for this
1230player. May block.
1231
1232=cut
1233
1234sub maps($) {
1235 my ($pl) = @_;
1236
1237 my $files = aio_readdir playerdir $pl
1238 or return;
1239
1240 my @paths;
1241
1242 for (@$files) {
1243 utf8::decode $_;
1244 next if /\.(?:pl|pst)$/;
1245 next unless /^$PATH_SEP/;
1246
1247 s/$PATH_SEP/\//g;
1248 push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249 }
1250
1251 \@paths
1037} 1252}
1038 1253
1039=item $player->ext_reply ($msgid, $msgtype, %msg) 1254=item $player->ext_reply ($msgid, $msgtype, %msg)
1040 1255
1041Sends an ext reply to the player. 1256Sends an ext reply to the player.
1042 1257
1043=cut 1258=cut
1044 1259
1045sub cf::player::ext_reply($$$%) { 1260sub ext_reply($$$%) {
1046 my ($self, $id, %msg) = @_; 1261 my ($self, $id, %msg) = @_;
1047 1262
1048 $msg{msgid} = $id; 1263 $msg{msgid} = $id;
1049 1264
1050 $self->send ("ext " . to_json \%msg); 1265 $self->send ("ext " . cf::to_json \%msg);
1051} 1266}
1267
1268package cf;
1052 1269
1053=back 1270=back
1054 1271
1055 1272
1056=head3 cf::map 1273=head3 cf::map
1062package cf::map; 1279package cf::map;
1063 1280
1064use Fcntl; 1281use Fcntl;
1065use Coro::AIO; 1282use Coro::AIO;
1066 1283
1067our $MAX_RESET = 7200; 1284our $MAX_RESET = 3600;
1068our $DEFAULT_RESET = 3600; 1285our $DEFAULT_RESET = 3000;
1069 1286
1070sub generate_random_map { 1287sub generate_random_map {
1071 my ($path, $rmp) = @_; 1288 my ($path, $rmp) = @_;
1072 1289
1073 # mit "rum" bekleckern, nicht 1290 # mit "rum" bekleckern, nicht
1089# and all this just because we cannot iterate over 1306# and all this just because we cannot iterate over
1090# all maps in C++... 1307# all maps in C++...
1091sub change_all_map_light { 1308sub change_all_map_light {
1092 my ($change) = @_; 1309 my ($change) = @_;
1093 1310
1094 $_->change_map_light ($change) for values %cf::MAP; 1311 $_->change_map_light ($change)
1312 for grep $_->outdoor, values %cf::MAP;
1095} 1313}
1096 1314
1097sub try_load_header($) { 1315sub try_load_header($) {
1098 my ($path) = @_; 1316 my ($path) = @_;
1099 1317
1102 or return; 1320 or return;
1103 1321
1104 my $map = cf::map::new 1322 my $map = cf::map::new
1105 or return; 1323 or return;
1106 1324
1325 # for better error messages only, will be overwritten
1326 $map->path ($path);
1327
1107 $map->load_header ($path) 1328 $map->load_header ($path)
1108 or return; 1329 or return;
1109 1330
1110 $map->{load_path} = $path; 1331 $map->{load_path} = $path;
1111 1332
1112 $map 1333 $map
1113} 1334}
1114 1335
1336sub find;
1115sub find_map { 1337sub find {
1116 my ($path, $origin) = @_; 1338 my ($path, $origin) = @_;
1117 1339
1118 #warn "find_map<$path,$origin>\n";#d# 1340 #warn "find<$path,$origin>\n";#d#
1119 1341
1120 $path = new cf::path $path, $origin && $origin->path; 1342 $path = new cf::path $path, $origin && $origin->path;
1121 my $key = $path->as_string; 1343 my $key = $path->as_string;
1122 1344
1345 cf::lock_wait "map_find:$key";
1346
1123 $cf::MAP{$key} || do { 1347 $cf::MAP{$key} || do {
1348 my $guard = cf::lock_acquire "map_find:$key";
1349
1124 # do it the slow way 1350 # do it the slow way
1125 my $map = try_load_header $path->save_path; 1351 my $map = try_load_header $path->save_path;
1126 1352
1353 Coro::cede;
1354
1127 if ($map) { 1355 if ($map) {
1356 $map->last_access ((delete $map->{last_access})
1357 || $cf::RUNTIME); #d#
1128 # safety 1358 # safety
1129 $map->{instantiate_time} = $cf::RUNTIME 1359 $map->{instantiate_time} = $cf::RUNTIME
1130 if $map->{instantiate_time} > $cf::RUNTIME; 1360 if $map->{instantiate_time} > $cf::RUNTIME;
1131 } else { 1361 } else {
1132 if (my $rmp = $path->random_map_params) { 1362 if (my $rmp = $path->random_map_params) {
1137 1367
1138 $map or return; 1368 $map or return;
1139 1369
1140 $map->{load_original} = 1; 1370 $map->{load_original} = 1;
1141 $map->{instantiate_time} = $cf::RUNTIME; 1371 $map->{instantiate_time} = $cf::RUNTIME;
1372 $map->last_access ($cf::RUNTIME);
1142 $map->instantiate; 1373 $map->instantiate;
1143 1374
1144 # per-player maps become, after loading, normal maps 1375 # per-player maps become, after loading, normal maps
1145 $map->per_player (0) if $path->{user_rel}; 1376 $map->per_player (0) if $path->{user_rel};
1146 } 1377 }
1147 #Coro::Timer::sleep 1;#d#
1148 1378
1149 $map->path ($key); 1379 $map->path ($key);
1150 $map->{path} = $path; 1380 $map->{path} = $path;
1151 $map->{last_save} = $cf::RUNTIME; 1381 $map->{last_save} = $cf::RUNTIME;
1152 $map->last_access ($cf::RUNTIME); 1382
1383 Coro::cede;
1153 1384
1154 if ($map->should_reset) { 1385 if ($map->should_reset) {
1155 $map->reset; 1386 $map->reset;
1387 undef $guard;
1156 $map = find_map $path; 1388 $map = find $path
1389 or return;
1157 } 1390 }
1158 1391
1159 $cf::MAP{$key} = $map 1392 $cf::MAP{$key} = $map
1160 } 1393 }
1161} 1394}
1162 1395
1163sub load { 1396sub load {
1164 my ($self) = @_; 1397 my ($self) = @_;
1165 1398
1399 my $path = $self->{path};
1400 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1401
1166 return if $self->in_memory != cf::MAP_SWAPPED; 1402 return if $self->in_memory != cf::MAP_SWAPPED;
1167 1403
1168 $self->in_memory (cf::MAP_LOADING); 1404 $self->in_memory (cf::MAP_LOADING);
1169
1170 my $path = $self->{path};
1171 1405
1172 $self->alloc; 1406 $self->alloc;
1173 $self->load_objects ($self->{load_path}, 1) 1407 $self->load_objects ($self->{load_path}, 1)
1174 or return; 1408 or return;
1175 1409
1181 if (aio_open $uniq, O_RDONLY, 0) { 1415 if (aio_open $uniq, O_RDONLY, 0) {
1182 $self->clear_unique_items; 1416 $self->clear_unique_items;
1183 $self->load_objects ($uniq, 0); 1417 $self->load_objects ($uniq, 0);
1184 } 1418 }
1185 } 1419 }
1420
1421 Coro::cede;
1186 1422
1187 # now do the right thing for maps 1423 # now do the right thing for maps
1188 $self->link_multipart_objects; 1424 $self->link_multipart_objects;
1189 1425
1190 if ($self->{path}->is_style_map) { 1426 if ($self->{path}->is_style_map) {
1198 $self->difficulty ($self->estimate_difficulty) 1434 $self->difficulty ($self->estimate_difficulty)
1199 unless $self->difficulty; 1435 unless $self->difficulty;
1200 $self->activate; 1436 $self->activate;
1201 } 1437 }
1202 1438
1439 Coro::cede;
1440
1203 $self->in_memory (cf::MAP_IN_MEMORY); 1441 $self->in_memory (cf::MAP_IN_MEMORY);
1204} 1442}
1205 1443
1206sub load_map_sync { 1444# find and load all maps in the 3x3 area around a map
1445sub load_diag {
1446 my ($map) = @_;
1447
1448 my @diag; # diagonal neighbours
1449
1450 for (0 .. 3) {
1451 my $neigh = $map->tile_path ($_)
1452 or next;
1453 $neigh = find $neigh, $map
1454 or next;
1455 $neigh->load;
1456
1457 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1458 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1459 }
1460
1461 for (@diag) {
1462 my $neigh = find @$_
1463 or next;
1464 $neigh->load;
1465 }
1466}
1467
1468sub find_sync {
1207 my ($path, $origin) = @_; 1469 my ($path, $origin) = @_;
1208 1470
1209 #warn "load_map_sync<$path, $origin>\n";#d# 1471 cf::sync_job { find $path, $origin }
1472}
1210 1473
1211 cf::sync_job { 1474sub do_load_sync {
1212 my $map = cf::map::find_map $path, $origin 1475 my ($map) = @_;
1476
1477 cf::sync_job { $map->load };
1478}
1479
1480our %MAP_PREFETCH;
1481our $MAP_PREFETCHER = Coro::async {
1482 while () {
1483 while (%MAP_PREFETCH) {
1484 my $key = each %MAP_PREFETCH
1213 or return; 1485 or next;
1486 my $path = delete $MAP_PREFETCH{$key};
1487
1488 my $map = find $path
1489 or next;
1214 $map->load; 1490 $map->load;
1215 $map 1491 }
1492 Coro::schedule;
1216 } 1493 }
1494};
1495
1496sub find_async {
1497 my ($path, $origin) = @_;
1498
1499 $path = new cf::path $path, $origin && $origin->path;
1500 my $key = $path->as_string;
1501
1502 if (my $map = $cf::MAP{$key}) {
1503 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504 }
1505
1506 $MAP_PREFETCH{$key} = $path;
1507 $MAP_PREFETCHER->ready;
1508
1509 ()
1217} 1510}
1218 1511
1219sub save { 1512sub save {
1220 my ($self) = @_; 1513 my ($self) = @_;
1221 1514
1515 my $lock = cf::lock_acquire "map_data:" . $self->path;
1516
1222 $self->{last_save} = $cf::RUNTIME; 1517 $self->{last_save} = $cf::RUNTIME;
1223 1518
1224 return unless $self->dirty; 1519 return unless $self->dirty;
1225 1520
1226 my $save = $self->{path}->save_path; utf8::encode $save; 1521 my $save = $self->{path}->save_path; utf8::encode $save;
1227 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1522 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1228 1523
1229 $self->{load_path} = $save; 1524 $self->{load_path} = $save;
1230 1525
1231 return if $self->{deny_save}; 1526 return if $self->{deny_save};
1527
1528 local $self->{last_access} = $self->last_access;#d#
1529
1530 cf::async {
1531 $_->contr->save for $self->players;
1532 };
1232 1533
1233 if ($uniq) { 1534 if ($uniq) {
1234 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1535 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235 $self->save_objects ($uniq, cf::IO_UNIQUES); 1536 $self->save_objects ($uniq, cf::IO_UNIQUES);
1236 } else { 1537 } else {
1239} 1540}
1240 1541
1241sub swap_out { 1542sub swap_out {
1242 my ($self) = @_; 1543 my ($self) = @_;
1243 1544
1545 # save first because save cedes
1546 $self->save;
1547
1548 my $lock = cf::lock_acquire "map_data:" . $self->path;
1549
1244 return if $self->players; 1550 return if $self->players;
1245 return if $self->in_memory != cf::MAP_IN_MEMORY; 1551 return if $self->in_memory != cf::MAP_IN_MEMORY;
1246 return if $self->{deny_save}; 1552 return if $self->{deny_save};
1247 1553
1248 $self->save;
1249 $self->clear; 1554 $self->clear;
1250 $self->in_memory (cf::MAP_SWAPPED); 1555 $self->in_memory (cf::MAP_SWAPPED);
1251} 1556}
1252 1557
1253sub reset_at { 1558sub reset_at {
1291} 1596}
1292 1597
1293sub reset { 1598sub reset {
1294 my ($self) = @_; 1599 my ($self) = @_;
1295 1600
1601 my $lock = cf::lock_acquire "map_data:" . $self->path;
1602
1296 return if $self->players; 1603 return if $self->players;
1297 return if $self->{path}{user_rel};#d# 1604 return if $self->{path}{user_rel};#d#
1298 1605
1299 warn "resetting map ", $self->path;#d# 1606 warn "resetting map ", $self->path;#d#
1300 1607
1319 1626
1320sub customise_for { 1627sub customise_for {
1321 my ($map, $ob) = @_; 1628 my ($map, $ob) = @_;
1322 1629
1323 if ($map->per_player) { 1630 if ($map->per_player) {
1324 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1631 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1325 } 1632 }
1326 1633
1327 $map 1634 $map
1328} 1635}
1329 1636
1330sub emergency_save {
1331 local $cf::FREEZE = 1;
1332
1333 warn "enter emergency map save\n";
1334
1335 cf::sync_job {
1336 warn "begin emergency map save\n";
1337 $_->save for values %cf::MAP;
1338 };
1339
1340 warn "end emergency map save\n";
1341}
1342
1343package cf; 1637package cf;
1344 1638
1345=back 1639=back
1346 1640
1641=head3 cf::object
1642
1643=cut
1644
1645package cf::object;
1646
1647=over 4
1648
1649=item $ob->inv_recursive
1650
1651Returns the inventory of the object _and_ their inventories, recursively.
1652
1653=cut
1654
1655sub inv_recursive_;
1656sub inv_recursive_ {
1657 map { $_, inv_recursive_ $_->inv } @_
1658}
1659
1660sub inv_recursive {
1661 inv_recursive_ inv $_[0]
1662}
1663
1664package cf;
1665
1666=back
1347 1667
1348=head3 cf::object::player 1668=head3 cf::object::player
1349 1669
1350=over 4 1670=over 4
1351 1671
1408=cut 1728=cut
1409 1729
1410sub cf::object::player::enter_link { 1730sub cf::object::player::enter_link {
1411 my ($self) = @_; 1731 my ($self) = @_;
1412 1732
1733 $self->deactivate_recursive;
1734
1413 return if $self->map == $LINK_MAP; 1735 return if $self->map == $LINK_MAP;
1414 1736
1415 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1737 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1416 if $self->map; 1738 if $self->map;
1417 1739
1418 $self->enter_map ($LINK_MAP, 20, 20); 1740 $self->enter_map ($LINK_MAP, 20, 20);
1419 $self->deactivate_recursive;
1420} 1741}
1421 1742
1422sub cf::object::player::leave_link { 1743sub cf::object::player::leave_link {
1423 my ($self, $map, $x, $y) = @_; 1744 my ($self, $map, $x, $y) = @_;
1424 1745
1425 my $link_pos = delete $self->{_link_pos}; 1746 my $link_pos = delete $self->{_link_pos};
1426 1747
1427 unless ($map) { 1748 unless ($map) {
1428 # restore original map position 1749 # restore original map position
1429 ($map, $x, $y) = @{ $link_pos || [] }; 1750 ($map, $x, $y) = @{ $link_pos || [] };
1430 $map = cf::map::find_map $map; 1751 $map = cf::map::find $map;
1431 1752
1432 unless ($map) { 1753 unless ($map) {
1433 ($map, $x, $y) = @$EMERGENCY_POSITION; 1754 ($map, $x, $y) = @$EMERGENCY_POSITION;
1434 $map = cf::map::find_map $map 1755 $map = cf::map::find $map
1435 or die "FATAL: cannot load emergency map\n"; 1756 or die "FATAL: cannot load emergency map\n";
1436 } 1757 }
1437 } 1758 }
1438 1759
1439 ($x, $y) = (-1, -1) 1760 ($x, $y) = (-1, -1)
1442 # use -1 or undef as default coordinates, not 0, 0 1763 # use -1 or undef as default coordinates, not 0, 0
1443 ($x, $y) = ($map->enter_x, $map->enter_y) 1764 ($x, $y) = ($map->enter_x, $map->enter_y)
1444 if $x <=0 && $y <= 0; 1765 if $x <=0 && $y <= 0;
1445 1766
1446 $map->load; 1767 $map->load;
1768 $map->load_diag;
1447 1769
1770 return unless $self->contr->active;
1448 $self->activate_recursive; 1771 $self->activate_recursive;
1449 $self->enter_map ($map, $x, $y); 1772 $self->enter_map ($map, $x, $y);
1450} 1773}
1451 1774
1775cf::player->attach (
1776 on_logout => sub {
1777 my ($pl) = @_;
1778
1779 # abort map switching before logout
1780 if ($pl->ob->{_link_pos}) {
1781 cf::sync_job {
1782 $pl->ob->leave_link
1783 };
1784 }
1785 },
1786 on_login => sub {
1787 my ($pl) = @_;
1788
1789 # try to abort aborted map switching on player login :)
1790 # should happen only on crashes
1791 if ($pl->ob->{_link_pos}) {
1792 $pl->ob->enter_link;
1793 (async {
1794 # we need this sleep as the login has a concurrent enter_exit running
1795 # and this sleep increases chances of the player not ending up in scorn
1796 $pl->ob->reply (undef,
1797 "There was an internal problem at your last logout, "
1798 . "the server will try to bring you to your intended destination in a second.",
1799 cf::NDI_RED);
1800 Coro::Timer::sleep 1;
1801 $pl->ob->leave_link;
1802 })->prio (2);
1803 }
1804 },
1805);
1806
1452=item $player_object->goto_map ($path, $x, $y) 1807=item $player_object->goto ($path, $x, $y)
1453 1808
1454=cut 1809=cut
1455 1810
1456sub cf::object::player::goto_map { 1811sub cf::object::player::goto {
1457 my ($self, $path, $x, $y) = @_; 1812 my ($self, $path, $x, $y) = @_;
1458 1813
1814 $path = new cf::path $path;
1815 $path ne "/" or Carp::cluck ("oy");#d#
1816
1459 $self->enter_link; 1817 $self->enter_link;
1460 1818
1461 (Coro::async { 1819 (async {
1462 $path = new cf::path $path;
1463
1464 my $map = cf::map::find_map $path->as_string; 1820 my $map = cf::map::find $path->as_string;
1465 $map = $map->customise_for ($self) if $map; 1821 $map = $map->customise_for ($self) if $map;
1466 1822
1467# warn "entering ", $map->path, " at ($x, $y)\n" 1823# warn "entering ", $map->path, " at ($x, $y)\n"
1468# if $map; 1824# if $map;
1469 1825
1470 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1826 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1471 1827
1472 $self->leave_link ($map, $x, $y); 1828 $self->leave_link ($map, $x, $y);
1473 })->prio (1); 1829 })->prio (1);
1474} 1830}
1475 1831
1528 1884
1529 return unless $self->type == cf::PLAYER; 1885 return unless $self->type == cf::PLAYER;
1530 1886
1531 $self->enter_link; 1887 $self->enter_link;
1532 1888
1533 (Coro::async { 1889 (async {
1890 $self->deactivate_recursive; # just to be sure
1534 unless (eval { 1891 unless (eval {
1535
1536 prepare_random_map $exit 1892 prepare_random_map $exit
1537 if $exit->slaying eq "/!"; 1893 if $exit->slaying eq "/!";
1538 1894
1539 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1895 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1896 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1541 1897
1542 1; 1898 1;
1543 }) { 1899 }) {
1544 $self->message ("Something went wrong deep within the crossfire server. " 1900 $self->message ("Something went wrong deep within the crossfire server. "
1545 . "I'll try to bring you back to the map you were before. " 1901 . "I'll try to bring you back to the map you were before. "
1602 on_reply => sub { 1958 on_reply => sub {
1603 my ($ns, $msg) = @_; 1959 my ($ns, $msg) = @_;
1604 1960
1605 # this weird shuffling is so that direct followup queries 1961 # this weird shuffling is so that direct followup queries
1606 # get handled first 1962 # get handled first
1607 my $queue = delete $ns->{query_queue}; 1963 my $queue = delete $ns->{query_queue}
1964 or return; # be conservative, not sure how that can happen, but we saw a crash here
1608 1965
1609 (shift @$queue)->[1]->($msg); 1966 (shift @$queue)->[1]->($msg);
1610 1967
1611 push @{ $ns->{query_queue} }, @$queue; 1968 push @{ $ns->{query_queue} }, @$queue;
1612 1969
1618 } 1975 }
1619 } 1976 }
1620 }, 1977 },
1621); 1978);
1622 1979
1623=item $client->coro (\&cb) 1980=item $client->async (\&cb)
1624 1981
1625Create a new coroutine, running the specified callback. The coroutine will 1982Create a new coroutine, running the specified callback. The coroutine will
1626be automatically cancelled when the client gets destroyed (e.g. on logout, 1983be automatically cancelled when the client gets destroyed (e.g. on logout,
1627or loss of connection). 1984or loss of connection).
1628 1985
1629=cut 1986=cut
1630 1987
1631sub cf::client::coro { 1988sub cf::client::async {
1632 my ($self, $cb) = @_; 1989 my ($self, $cb) = @_;
1633 1990
1634 my $coro; $coro = async { 1991 my $coro = &Coro::async ($cb);
1635 eval {
1636 $cb->();
1637 };
1638 warn $@ if $@;
1639 };
1640 1992
1641 $coro->on_destroy (sub { 1993 $coro->on_destroy (sub {
1642 delete $self->{_coro}{$coro+0}; 1994 delete $self->{_coro}{$coro+0};
1643 }); 1995 });
1644 1996
1816 2168
1817{ 2169{
1818 my $path = cf::localdir . "/database.pst"; 2170 my $path = cf::localdir . "/database.pst";
1819 2171
1820 sub db_load() { 2172 sub db_load() {
1821 warn "loading database $path\n";#d# remove later
1822 $DB = stat $path ? Storable::retrieve $path : { }; 2173 $DB = stat $path ? Storable::retrieve $path : { };
1823 } 2174 }
1824 2175
1825 my $pid; 2176 my $pid;
1826 2177
1827 sub db_save() { 2178 sub db_save() {
1828 warn "saving database $path\n";#d# remove later
1829 waitpid $pid, 0 if $pid; 2179 waitpid $pid, 0 if $pid;
1830 if (0 == ($pid = fork)) { 2180 if (0 == ($pid = fork)) {
1831 $DB->{_meta}{version} = 1; 2181 $DB->{_meta}{version} = 1;
1832 Storable::nstore $DB, "$path~"; 2182 Storable::nstore $DB, "$path~";
1833 rename "$path~", $path; 2183 rename "$path~", $path;
1881 open my $fh, "<:utf8", cf::confdir . "/config" 2231 open my $fh, "<:utf8", cf::confdir . "/config"
1882 or return; 2232 or return;
1883 2233
1884 local $/; 2234 local $/;
1885 *CFG = YAML::Syck::Load <$fh>; 2235 *CFG = YAML::Syck::Load <$fh>;
2236
2237 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2238
2239 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2240 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2241
2242 if (exists $CFG{mlockall}) {
2243 eval {
2244 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2245 and die "WARNING: m(un)lockall failed: $!\n";
2246 };
2247 warn $@ if $@;
2248 }
1886} 2249}
1887 2250
1888sub main { 2251sub main {
1889 # we must not ever block the main coroutine 2252 # we must not ever block the main coroutine
1890 local $Coro::idle = sub { 2253 local $Coro::idle = sub {
1891 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2254 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892 (Coro::unblock_sub {
1893 Event::one_event; 2255 async { Event::one_event };
1894 })->();
1895 }; 2256 };
1896 2257
1897 cfg_load; 2258 cfg_load;
1898 db_load; 2259 db_load;
1899 load_extensions; 2260 load_extensions;
1900 Event::loop; 2261 Event::loop;
1901} 2262}
1902 2263
1903############################################################################# 2264#############################################################################
1904# initialisation 2265# initialisation and cleanup
2266
2267# install some emergency cleanup handlers
2268BEGIN {
2269 for my $signal (qw(INT HUP TERM)) {
2270 Event->signal (
2271 data => WF_AUTOCANCEL,
2272 signal => $signal,
2273 cb => sub {
2274 cf::cleanup "SIG$signal";
2275 },
2276 );
2277 }
2278}
2279
2280sub emergency_save() {
2281 my $freeze_guard = cf::freeze_mainloop;
2282
2283 warn "enter emergency perl save\n";
2284
2285 cf::sync_job {
2286 # use a peculiar iteration method to avoid tripping on perl
2287 # refcount bugs in for. also avoids problems with players
2288 # and maps saved/Destroyed asynchronously.
2289 warn "begin emergency player save\n";
2290 for my $login (keys %cf::PLAYER) {
2291 my $pl = $cf::PLAYER{$login} or next;
2292 $pl->valid or next;
2293 $pl->save;
2294 }
2295 warn "end emergency player save\n";
2296
2297 warn "begin emergency map save\n";
2298 for my $path (keys %cf::MAP) {
2299 my $map = $cf::MAP{$path} or next;
2300 $map->valid or next;
2301 $map->save;
2302 }
2303 warn "end emergency map save\n";
2304 };
2305
2306 warn "leave emergency perl save\n";
2307}
1905 2308
1906sub reload() { 2309sub reload() {
1907 # can/must only be called in main 2310 # can/must only be called in main
1908 if ($Coro::current != $Coro::main) { 2311 if ($Coro::current != $Coro::main) {
1909 warn "can only reload from main coroutine\n"; 2312 warn "can only reload from main coroutine\n";
1910 return; 2313 return;
1911 } 2314 }
1912 2315
1913 warn "reloading..."; 2316 warn "reloading...";
1914 2317
1915 local $FREEZE = 1; 2318 my $guard = freeze_mainloop;
1916 cf::emergency_save; 2319 cf::emergency_save;
1917 2320
1918 eval { 2321 eval {
1919 # if anything goes wrong in here, we should simply crash as we already saved 2322 # if anything goes wrong in here, we should simply crash as we already saved
1920 2323
1982 cf::load_extensions; 2385 cf::load_extensions;
1983 2386
1984 # reattach attachments to objects 2387 # reattach attachments to objects
1985 warn "reattach"; 2388 warn "reattach";
1986 _global_reattach; 2389 _global_reattach;
2390 reattach $_ for values %MAP;
1987 }; 2391 };
1988 2392
1989 if ($@) { 2393 if ($@) {
1990 warn $@; 2394 warn $@;
1991 warn "error while reloading, exiting."; 2395 warn "error while reloading, exiting.";
2007 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2411 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2412 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2009 2413
2010 # dirty hack because... archetypes are not yet loaded 2414 # dirty hack because... archetypes are not yet loaded
2011 Event->timer ( 2415 Event->timer (
2012 after => 2, 2416 after => 10,
2013 cb => sub { 2417 cb => sub {
2014 $_[0]->w->cancel; 2418 $_[0]->w->cancel;
2015 2419
2016 # provide some exits "home" 2420 # provide some exits "home"
2017 my $exit = cf::object::new "exit"; 2421 my $exit = cf::object::new "exit";
2056 reentrant => 0, 2460 reentrant => 0,
2057 prio => 0, 2461 prio => 0,
2058 at => $NEXT_TICK || $TICK, 2462 at => $NEXT_TICK || $TICK,
2059 data => WF_AUTOCANCEL, 2463 data => WF_AUTOCANCEL,
2060 cb => sub { 2464 cb => sub {
2061 unless ($FREEZE) {
2062 cf::server_tick; # one server iteration 2465 cf::server_tick; # one server iteration
2063 $RUNTIME += $TICK; 2466 $RUNTIME += $TICK;
2064 }
2065
2066 $NEXT_TICK += $TICK; 2467 $NEXT_TICK += $TICK;
2468
2469 $WAIT_FOR_TICK->broadcast;
2470 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2067 2471
2068 # if we are delayed by four ticks or more, skip them all 2472 # if we are delayed by four ticks or more, skip them all
2069 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2473 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2070 2474
2071 $TICK_WATCHER->at ($NEXT_TICK); 2475 $TICK_WATCHER->at ($NEXT_TICK);
2093 or warn "ERROR: unable to write runtime file: $!"; 2497 or warn "ERROR: unable to write runtime file: $!";
2094 })->(); 2498 })->();
2095 }, 2499 },
2096); 2500);
2097 2501
2502END { cf::emergency_save }
2503
20981 25041
2099 2505

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