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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.120 by root, Tue Jan 2 11:08:36 2007 UTC vs.
Revision 1.155 by root, Tue Jan 9 21:32:42 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 $json
165 196
181sub to_json($) { 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}
185 216
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string 217=item cf::lock_wait $string
209 218
210Wait until the given lock is available. See cf::lock_acquire. 219Wait until the given lock is available. See cf::lock_acquire.
211 220
212=item my $lock = cf::lock_acquire $string 221=item my $lock = cf::lock_acquire $string
213 222
214Wait until the given lock is available and then acquires it and returns 223Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope, 224a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically 225for example when the coroutine gets canceled), the lock is automatically
217returned. 226returned.
218 227
219Lock names should begin with a unique identifier (for example, find_map 228Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 229uses map_find and cf::map::load uses map_load).
221 230
222=cut 231=cut
223 232
224our %LOCK; 233our %LOCK;
225 234
239 # wait, to be sure we are not locked 248 # wait, to be sure we are not locked
240 lock_wait $key; 249 lock_wait $key;
241 250
242 $LOCK{$key} = []; 251 $LOCK{$key} = [];
243 252
244 cf::guard { 253 Coro::guard {
245 # wake up all waiters, to be on the safe side 254 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 255 $_->ready for @{ delete $LOCK{$key} };
247 } 256 }
248} 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 $guard
265}
266
267=item cf::async { BLOCK }
268
269Currently the same as Coro::async_pool, meaning you cannot use
270C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
271thing you are allowed to do is call C<prio> on it.
272
273=cut
274
275BEGIN { *async = \&Coro::async_pool }
249 276
250=item cf::sync_job { BLOCK } 277=item cf::sync_job { BLOCK }
251 278
252The design of crossfire+ requires that the main coro ($Coro::main) is 279The design of crossfire+ requires that the main coro ($Coro::main) is
253always able to handle events or runnable, as crossfire+ is only partly 280always able to handle events or runnable, as crossfire+ is only partly
267 # this is the main coro, too bad, we have to block 294 # this is the main coro, too bad, we have to block
268 # till the operation succeeds, freezing the server :/ 295 # till the operation succeeds, freezing the server :/
269 296
270 # TODO: use suspend/resume instead 297 # TODO: use suspend/resume instead
271 # (but this is cancel-safe) 298 # (but this is cancel-safe)
272 local $FREEZE = 1; 299 my $freeze_guard = freeze_mainloop;
273 300
274 my $busy = 1; 301 my $busy = 1;
275 my @res; 302 my @res;
276 303
277 (Coro::async { 304 (async {
278 @res = eval { $job->() }; 305 @res = eval { $job->() };
279 warn $@ if $@; 306 warn $@ if $@;
280 undef $busy; 307 undef $busy;
281 })->prio (Coro::PRIO_MAX); 308 })->prio (Coro::PRIO_MAX);
282 309
283 while ($busy) { 310 while ($busy) {
284 Coro::cede_notself; 311 Coro::cede or Event::one_event;
285 Event::one_event unless Coro::nready;
286 } 312 }
287 313
288 wantarray ? @res : $res[0] 314 wantarray ? @res : $res[0]
289 } else { 315 } else {
290 # we are in another coroutine, how wonderful, everything just works 316 # we are in another coroutine, how wonderful, everything just works
291 317
292 $job->() 318 $job->()
293 } 319 }
294} 320}
295 321
296=item $coro = cf::coro { BLOCK } 322=item $coro = cf::async_ext { BLOCK }
297 323
298Creates and returns a new coro. This coro is automcatially being canceled 324Like async, but this coro is automcatially being canceled when the
299when the extension calling this is being unloaded. 325extension calling this is being unloaded.
300 326
301=cut 327=cut
302 328
303sub coro(&) { 329sub async_ext(&) {
304 my $cb = shift; 330 my $cb = shift;
305 331
306 my $coro; $coro = async { 332 my $coro = &Coro::async ($cb);
307 eval {
308 $cb->();
309 };
310 warn $@ if $@;
311 };
312 333
313 $coro->on_destroy (sub { 334 $coro->on_destroy (sub {
314 delete $EXT_CORO{$coro+0}; 335 delete $EXT_CORO{$coro+0};
315 }); 336 });
316 $EXT_CORO{$coro+0} = $coro; 337 $EXT_CORO{$coro+0} = $coro;
345=cut 366=cut
346 367
347############################################################################# 368#############################################################################
348 369
349package cf::path; 370package cf::path;
371
372# used to convert map paths into valid unix filenames by repalcing / by ∕
373our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
350 374
351sub new { 375sub new {
352 my ($class, $path, $base) = @_; 376 my ($class, $path, $base) = @_;
353 377
354 $path = $path->as_string if ref $path; 378 $path = $path->as_string if ref $path;
418# } 442# }
419} 443}
420 444
421# escape the /'s in the path 445# escape the /'s in the path
422sub _escaped_path { 446sub _escaped_path {
423 # ∕ is U+2215
424 (my $path = $_[0]{path}) =~ s/\///g; 447 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
425 $path 448 $path
426} 449}
427 450
428# the original (read-only) location 451# the original (read-only) location
429sub load_path { 452sub load_path {
1056}; 1079};
1057 1080
1058cf::map->attach (prio => -10000, package => cf::mapsupport::); 1081cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059 1082
1060############################################################################# 1083#############################################################################
1061# load/save perl data associated with player->ob objects
1062
1063sub all_objects(@) {
1064 @_, map all_objects ($_->inv), @_
1065}
1066
1067# TODO: compatibility cruft, remove when no longer needed
1068cf::player->attach (
1069 on_load => sub {
1070 my ($pl, $path) = @_;
1071
1072 for my $o (all_objects $pl->ob) {
1073 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074 $o->set_ob_key_value ("_perl_data");
1075
1076 %$o = %{ Storable::thaw pack "H*", $value };
1077 }
1078 }
1079 },
1080);
1081
1082#############################################################################
1083 1084
1084=head2 CORE EXTENSIONS 1085=head2 CORE EXTENSIONS
1085 1086
1086Functions and methods that extend core crossfire objects. 1087Functions and methods that extend core crossfire objects.
1087 1088
1089=cut
1090
1091package cf::player;
1092
1093use Coro::AIO;
1094
1088=head3 cf::player 1095=head3 cf::player
1089 1096
1090=over 4 1097=over 4
1091 1098
1092=item cf::player::exists $login 1099=item cf::player::find $login
1093 1100
1094Returns true when the given account exists. 1101Returns the given player object, loading it if necessary (might block).
1095 1102
1096=cut 1103=cut
1097 1104
1098sub cf::player::exists($) { 1105sub playerdir($) {
1099 cf::player::find $_[0] 1106 cf::localdir
1100 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[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
1101} 1252}
1102 1253
1103=item $player->ext_reply ($msgid, $msgtype, %msg) 1254=item $player->ext_reply ($msgid, $msgtype, %msg)
1104 1255
1105Sends an ext reply to the player. 1256Sends an ext reply to the player.
1106 1257
1107=cut 1258=cut
1108 1259
1109sub cf::player::ext_reply($$$%) { 1260sub ext_reply($$$%) {
1110 my ($self, $id, %msg) = @_; 1261 my ($self, $id, %msg) = @_;
1111 1262
1112 $msg{msgid} = $id; 1263 $msg{msgid} = $id;
1113 1264
1114 $self->send ("ext " . to_json \%msg); 1265 $self->send ("ext " . cf::to_json \%msg);
1115} 1266}
1267
1268package cf;
1116 1269
1117=back 1270=back
1118 1271
1119 1272
1120=head3 cf::map 1273=head3 cf::map
1126package cf::map; 1279package cf::map;
1127 1280
1128use Fcntl; 1281use Fcntl;
1129use Coro::AIO; 1282use Coro::AIO;
1130 1283
1131our $MAX_RESET = 7200; 1284our $MAX_RESET = 3600;
1132our $DEFAULT_RESET = 3600; 1285our $DEFAULT_RESET = 3000;
1133 1286
1134sub generate_random_map { 1287sub generate_random_map {
1135 my ($path, $rmp) = @_; 1288 my ($path, $rmp) = @_;
1136 1289
1137 # mit "rum" bekleckern, nicht 1290 # mit "rum" bekleckern, nicht
1153# and all this just because we cannot iterate over 1306# and all this just because we cannot iterate over
1154# all maps in C++... 1307# all maps in C++...
1155sub change_all_map_light { 1308sub change_all_map_light {
1156 my ($change) = @_; 1309 my ($change) = @_;
1157 1310
1158 $_->change_map_light ($change) for values %cf::MAP; 1311 $_->change_map_light ($change)
1312 for grep $_->outdoor, values %cf::MAP;
1159} 1313}
1160 1314
1161sub try_load_header($) { 1315sub try_load_header($) {
1162 my ($path) = @_; 1316 my ($path) = @_;
1163 1317
1166 or return; 1320 or return;
1167 1321
1168 my $map = cf::map::new 1322 my $map = cf::map::new
1169 or return; 1323 or return;
1170 1324
1325 # for better error messages only, will be overwritten
1326 $map->path ($path);
1327
1171 $map->load_header ($path) 1328 $map->load_header ($path)
1172 or return; 1329 or return;
1173 1330
1174 $map->{load_path} = $path; 1331 $map->{load_path} = $path;
1175 1332
1176 $map 1333 $map
1177} 1334}
1178 1335
1336sub find;
1179sub find_map { 1337sub find {
1180 my ($path, $origin) = @_; 1338 my ($path, $origin) = @_;
1181 1339
1182 #warn "find_map<$path,$origin>\n";#d# 1340 #warn "find<$path,$origin>\n";#d#
1183 1341
1184 $path = new cf::path $path, $origin && $origin->path; 1342 $path = new cf::path $path, $origin && $origin->path;
1185 my $key = $path->as_string; 1343 my $key = $path->as_string;
1186 1344
1187 cf::lock_wait "map_find:$key"; 1345 cf::lock_wait "map_find:$key";
1190 my $guard = cf::lock_acquire "map_find:$key"; 1348 my $guard = cf::lock_acquire "map_find:$key";
1191 1349
1192 # do it the slow way 1350 # do it the slow way
1193 my $map = try_load_header $path->save_path; 1351 my $map = try_load_header $path->save_path;
1194 1352
1353 Coro::cede;
1354
1195 if ($map) { 1355 if ($map) {
1356 $map->last_access ((delete $map->{last_access})
1357 || $cf::RUNTIME); #d#
1196 # safety 1358 # safety
1197 $map->{instantiate_time} = $cf::RUNTIME 1359 $map->{instantiate_time} = $cf::RUNTIME
1198 if $map->{instantiate_time} > $cf::RUNTIME; 1360 if $map->{instantiate_time} > $cf::RUNTIME;
1199 } else { 1361 } else {
1200 if (my $rmp = $path->random_map_params) { 1362 if (my $rmp = $path->random_map_params) {
1205 1367
1206 $map or return; 1368 $map or return;
1207 1369
1208 $map->{load_original} = 1; 1370 $map->{load_original} = 1;
1209 $map->{instantiate_time} = $cf::RUNTIME; 1371 $map->{instantiate_time} = $cf::RUNTIME;
1372 $map->last_access ($cf::RUNTIME);
1210 $map->instantiate; 1373 $map->instantiate;
1211 1374
1212 # per-player maps become, after loading, normal maps 1375 # per-player maps become, after loading, normal maps
1213 $map->per_player (0) if $path->{user_rel}; 1376 $map->per_player (0) if $path->{user_rel};
1214 } 1377 }
1215 #Coro::Timer::sleep 1;#d#
1216 1378
1217 $map->path ($key); 1379 $map->path ($key);
1218 $map->{path} = $path; 1380 $map->{path} = $path;
1219 $map->{last_save} = $cf::RUNTIME; 1381 $map->{last_save} = $cf::RUNTIME;
1220 $map->last_access ($cf::RUNTIME); 1382
1383 Coro::cede;
1221 1384
1222 if ($map->should_reset) { 1385 if ($map->should_reset) {
1223 $map->reset; 1386 $map->reset;
1387 undef $guard;
1224 $map = find_map $path; 1388 $map = find $path
1389 or return;
1225 } 1390 }
1226 1391
1227 $cf::MAP{$key} = $map 1392 $cf::MAP{$key} = $map
1228 } 1393 }
1229} 1394}
1250 if (aio_open $uniq, O_RDONLY, 0) { 1415 if (aio_open $uniq, O_RDONLY, 0) {
1251 $self->clear_unique_items; 1416 $self->clear_unique_items;
1252 $self->load_objects ($uniq, 0); 1417 $self->load_objects ($uniq, 0);
1253 } 1418 }
1254 } 1419 }
1420
1421 Coro::cede;
1255 1422
1256 # now do the right thing for maps 1423 # now do the right thing for maps
1257 $self->link_multipart_objects; 1424 $self->link_multipart_objects;
1258 1425
1259 if ($self->{path}->is_style_map) { 1426 if ($self->{path}->is_style_map) {
1267 $self->difficulty ($self->estimate_difficulty) 1434 $self->difficulty ($self->estimate_difficulty)
1268 unless $self->difficulty; 1435 unless $self->difficulty;
1269 $self->activate; 1436 $self->activate;
1270 } 1437 }
1271 1438
1439 Coro::cede;
1440
1272 $self->in_memory (cf::MAP_IN_MEMORY); 1441 $self->in_memory (cf::MAP_IN_MEMORY);
1273} 1442}
1274 1443
1275sub load_map_sync { 1444sub find_sync {
1276 my ($path, $origin) = @_; 1445 my ($path, $origin) = @_;
1277 1446
1278 #warn "load_map_sync<$path, $origin>\n";#d# 1447 cf::sync_job { cf::map::find $path, $origin }
1448}
1279 1449
1280 cf::sync_job { 1450sub do_load_sync {
1281 my $map = cf::map::find_map $path, $origin 1451 my ($map) = @_;
1282 or return; 1452
1283 $map->load; 1453 cf::sync_job { $map->load };
1284 $map
1285 }
1286} 1454}
1287 1455
1288sub save { 1456sub save {
1289 my ($self) = @_; 1457 my ($self) = @_;
1290 1458
1459 my $lock = cf::lock_acquire "map_data:" . $self->path;
1460
1291 $self->{last_save} = $cf::RUNTIME; 1461 $self->{last_save} = $cf::RUNTIME;
1292 1462
1293 return unless $self->dirty; 1463 return unless $self->dirty;
1294 1464
1295 my $save = $self->{path}->save_path; utf8::encode $save; 1465 my $save = $self->{path}->save_path; utf8::encode $save;
1296 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1466 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1297 1467
1298 $self->{load_path} = $save; 1468 $self->{load_path} = $save;
1299 1469
1300 return if $self->{deny_save}; 1470 return if $self->{deny_save};
1471
1472 local $self->{last_access} = $self->last_access;#d#
1473
1474 cf::async {
1475 $_->contr->save for $self->players;
1476 };
1301 1477
1302 if ($uniq) { 1478 if ($uniq) {
1303 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1479 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1304 $self->save_objects ($uniq, cf::IO_UNIQUES); 1480 $self->save_objects ($uniq, cf::IO_UNIQUES);
1305 } else { 1481 } else {
1308} 1484}
1309 1485
1310sub swap_out { 1486sub swap_out {
1311 my ($self) = @_; 1487 my ($self) = @_;
1312 1488
1489 # save first because save cedes
1490 $self->save;
1491
1492 my $lock = cf::lock_acquire "map_data:" . $self->path;
1493
1313 return if $self->players; 1494 return if $self->players;
1314 return if $self->in_memory != cf::MAP_IN_MEMORY; 1495 return if $self->in_memory != cf::MAP_IN_MEMORY;
1315 return if $self->{deny_save}; 1496 return if $self->{deny_save};
1316 1497
1317 $self->save;
1318 $self->clear; 1498 $self->clear;
1319 $self->in_memory (cf::MAP_SWAPPED); 1499 $self->in_memory (cf::MAP_SWAPPED);
1320} 1500}
1321 1501
1322sub reset_at { 1502sub reset_at {
1360} 1540}
1361 1541
1362sub reset { 1542sub reset {
1363 my ($self) = @_; 1543 my ($self) = @_;
1364 1544
1545 my $lock = cf::lock_acquire "map_data:" . $self->path;
1546
1365 return if $self->players; 1547 return if $self->players;
1366 return if $self->{path}{user_rel};#d# 1548 return if $self->{path}{user_rel};#d#
1367 1549
1368 warn "resetting map ", $self->path;#d# 1550 warn "resetting map ", $self->path;#d#
1369 1551
1388 1570
1389sub customise_for { 1571sub customise_for {
1390 my ($map, $ob) = @_; 1572 my ($map, $ob) = @_;
1391 1573
1392 if ($map->per_player) { 1574 if ($map->per_player) {
1393 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1575 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1394 } 1576 }
1395 1577
1396 $map 1578 $map
1397} 1579}
1398 1580
1399sub emergency_save {
1400 local $cf::FREEZE = 1;
1401
1402 warn "enter emergency map save\n";
1403
1404 cf::sync_job {
1405 warn "begin emergency map save\n";
1406 $_->save for values %cf::MAP;
1407 };
1408
1409 warn "end emergency map save\n";
1410}
1411
1412package cf; 1581package cf;
1413 1582
1414=back 1583=back
1415 1584
1585=head3 cf::object
1586
1587=cut
1588
1589package cf::object;
1590
1591=over 4
1592
1593=item $ob->inv_recursive
1594
1595Returns the inventory of the object _and_ their inventories, recursively.
1596
1597=cut
1598
1599sub inv_recursive_;
1600sub inv_recursive_ {
1601 map { $_, inv_recursive_ $_->inv } @_
1602}
1603
1604sub inv_recursive {
1605 inv_recursive_ inv $_[0]
1606}
1607
1608package cf;
1609
1610=back
1416 1611
1417=head3 cf::object::player 1612=head3 cf::object::player
1418 1613
1419=over 4 1614=over 4
1420 1615
1495 my $link_pos = delete $self->{_link_pos}; 1690 my $link_pos = delete $self->{_link_pos};
1496 1691
1497 unless ($map) { 1692 unless ($map) {
1498 # restore original map position 1693 # restore original map position
1499 ($map, $x, $y) = @{ $link_pos || [] }; 1694 ($map, $x, $y) = @{ $link_pos || [] };
1500 $map = cf::map::find_map $map; 1695 $map = cf::map::find $map;
1501 1696
1502 unless ($map) { 1697 unless ($map) {
1503 ($map, $x, $y) = @$EMERGENCY_POSITION; 1698 ($map, $x, $y) = @$EMERGENCY_POSITION;
1504 $map = cf::map::find_map $map 1699 $map = cf::map::find $map
1505 or die "FATAL: cannot load emergency map\n"; 1700 or die "FATAL: cannot load emergency map\n";
1506 } 1701 }
1507 } 1702 }
1508 1703
1509 ($x, $y) = (-1, -1) 1704 ($x, $y) = (-1, -1)
1513 ($x, $y) = ($map->enter_x, $map->enter_y) 1708 ($x, $y) = ($map->enter_x, $map->enter_y)
1514 if $x <=0 && $y <= 0; 1709 if $x <=0 && $y <= 0;
1515 1710
1516 $map->load; 1711 $map->load;
1517 1712
1713 return unless $self->contr->active;
1518 $self->activate_recursive; 1714 $self->activate_recursive;
1519 $self->enter_map ($map, $x, $y); 1715 $self->enter_map ($map, $x, $y);
1520} 1716}
1521 1717
1522cf::player->attach ( 1718cf::player->attach (
1535 1731
1536 # try to abort aborted map switching on player login :) 1732 # try to abort aborted map switching on player login :)
1537 # should happen only on crashes 1733 # should happen only on crashes
1538 if ($pl->ob->{_link_pos}) { 1734 if ($pl->ob->{_link_pos}) {
1539 $pl->ob->enter_link; 1735 $pl->ob->enter_link;
1540 Coro::async { 1736 (async {
1541 # we need this sleep as the login has a concurrent enter_exit running 1737 # we need this sleep as the login has a concurrent enter_exit running
1542 # and this sleep increases chances of the player not ending up in scorn 1738 # and this sleep increases chances of the player not ending up in scorn
1739 $pl->ob->reply (undef,
1740 "There was an internal problem at your last logout, "
1741 . "the server will try to bring you to your intended destination in a second.",
1742 cf::NDI_RED);
1543 Coro::Timer::sleep 1; 1743 Coro::Timer::sleep 1;
1544 $pl->ob->leave_link; 1744 $pl->ob->leave_link;
1545 }; 1745 })->prio (2);
1546 } 1746 }
1547 }, 1747 },
1548); 1748);
1549 1749
1550=item $player_object->goto_map ($path, $x, $y) 1750=item $player_object->goto ($path, $x, $y)
1551 1751
1552=cut 1752=cut
1553 1753
1554sub cf::object::player::goto_map { 1754sub cf::object::player::goto {
1555 my ($self, $path, $x, $y) = @_; 1755 my ($self, $path, $x, $y) = @_;
1556 1756
1757 $path = new cf::path $path;
1758 $path ne "/" or Carp::cluck ("oy");#d#
1759
1557 $self->enter_link; 1760 $self->enter_link;
1558 1761
1559 (Coro::async { 1762 (async {
1560 $path = new cf::path $path;
1561
1562 my $map = cf::map::find_map $path->as_string; 1763 my $map = cf::map::find $path->as_string;
1563 $map = $map->customise_for ($self) if $map; 1764 $map = $map->customise_for ($self) if $map;
1564 1765
1565# warn "entering ", $map->path, " at ($x, $y)\n" 1766# warn "entering ", $map->path, " at ($x, $y)\n"
1566# if $map; 1767# if $map;
1567 1768
1568 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1769 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1569 1770
1570 $self->leave_link ($map, $x, $y); 1771 $self->leave_link ($map, $x, $y);
1571 })->prio (1); 1772 })->prio (1);
1572} 1773}
1573 1774
1626 1827
1627 return unless $self->type == cf::PLAYER; 1828 return unless $self->type == cf::PLAYER;
1628 1829
1629 $self->enter_link; 1830 $self->enter_link;
1630 1831
1631 (Coro::async { 1832 (async {
1833 $self->deactivate_recursive; # just to be sure
1632 unless (eval { 1834 unless (eval {
1633
1634 prepare_random_map $exit 1835 prepare_random_map $exit
1635 if $exit->slaying eq "/!"; 1836 if $exit->slaying eq "/!";
1636 1837
1637 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1838 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1638 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1839 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1639 1840
1640 1; 1841 1;
1641 }) { 1842 }) {
1642 $self->message ("Something went wrong deep within the crossfire server. " 1843 $self->message ("Something went wrong deep within the crossfire server. "
1643 . "I'll try to bring you back to the map you were before. " 1844 . "I'll try to bring you back to the map you were before. "
1700 on_reply => sub { 1901 on_reply => sub {
1701 my ($ns, $msg) = @_; 1902 my ($ns, $msg) = @_;
1702 1903
1703 # this weird shuffling is so that direct followup queries 1904 # this weird shuffling is so that direct followup queries
1704 # get handled first 1905 # get handled first
1705 my $queue = delete $ns->{query_queue}; 1906 my $queue = delete $ns->{query_queue}
1907 or return; # be conservative, not sure how that can happen, but we saw a crash here
1706 1908
1707 (shift @$queue)->[1]->($msg); 1909 (shift @$queue)->[1]->($msg);
1708 1910
1709 push @{ $ns->{query_queue} }, @$queue; 1911 push @{ $ns->{query_queue} }, @$queue;
1710 1912
1716 } 1918 }
1717 } 1919 }
1718 }, 1920 },
1719); 1921);
1720 1922
1721=item $client->coro (\&cb) 1923=item $client->async (\&cb)
1722 1924
1723Create a new coroutine, running the specified callback. The coroutine will 1925Create a new coroutine, running the specified callback. The coroutine will
1724be automatically cancelled when the client gets destroyed (e.g. on logout, 1926be automatically cancelled when the client gets destroyed (e.g. on logout,
1725or loss of connection). 1927or loss of connection).
1726 1928
1727=cut 1929=cut
1728 1930
1729sub cf::client::coro { 1931sub cf::client::async {
1730 my ($self, $cb) = @_; 1932 my ($self, $cb) = @_;
1731 1933
1732 my $coro; $coro = async { 1934 my $coro = &Coro::async ($cb);
1733 eval {
1734 $cb->();
1735 };
1736 warn $@ if $@;
1737 };
1738 1935
1739 $coro->on_destroy (sub { 1936 $coro->on_destroy (sub {
1740 delete $self->{_coro}{$coro+0}; 1937 delete $self->{_coro}{$coro+0};
1741 }); 1938 });
1742 1939
1914 2111
1915{ 2112{
1916 my $path = cf::localdir . "/database.pst"; 2113 my $path = cf::localdir . "/database.pst";
1917 2114
1918 sub db_load() { 2115 sub db_load() {
1919 warn "loading database $path\n";#d# remove later
1920 $DB = stat $path ? Storable::retrieve $path : { }; 2116 $DB = stat $path ? Storable::retrieve $path : { };
1921 } 2117 }
1922 2118
1923 my $pid; 2119 my $pid;
1924 2120
1925 sub db_save() { 2121 sub db_save() {
1926 warn "saving database $path\n";#d# remove later
1927 waitpid $pid, 0 if $pid; 2122 waitpid $pid, 0 if $pid;
1928 if (0 == ($pid = fork)) { 2123 if (0 == ($pid = fork)) {
1929 $DB->{_meta}{version} = 1; 2124 $DB->{_meta}{version} = 1;
1930 Storable::nstore $DB, "$path~"; 2125 Storable::nstore $DB, "$path~";
1931 rename "$path~", $path; 2126 rename "$path~", $path;
1979 open my $fh, "<:utf8", cf::confdir . "/config" 2174 open my $fh, "<:utf8", cf::confdir . "/config"
1980 or return; 2175 or return;
1981 2176
1982 local $/; 2177 local $/;
1983 *CFG = YAML::Syck::Load <$fh>; 2178 *CFG = YAML::Syck::Load <$fh>;
2179
2180 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2181
2182 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2183 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2184
2185 if (exists $CFG{mlockall}) {
2186 eval {
2187 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2188 and die "WARNING: m(un)lockall failed: $!\n";
2189 };
2190 warn $@ if $@;
2191 }
1984} 2192}
1985 2193
1986sub main { 2194sub main {
1987 # we must not ever block the main coroutine 2195 # we must not ever block the main coroutine
1988 local $Coro::idle = sub { 2196 local $Coro::idle = sub {
1989 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2197 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990 (Coro::unblock_sub {
1991 Event::one_event; 2198 async { Event::one_event };
1992 })->();
1993 }; 2199 };
1994 2200
1995 cfg_load; 2201 cfg_load;
1996 db_load; 2202 db_load;
1997 load_extensions; 2203 load_extensions;
1998 Event::loop; 2204 Event::loop;
1999} 2205}
2000 2206
2001############################################################################# 2207#############################################################################
2002# initialisation 2208# initialisation and cleanup
2209
2210# install some emergency cleanup handlers
2211BEGIN {
2212 for my $signal (qw(INT HUP TERM)) {
2213 Event->signal (
2214 data => WF_AUTOCANCEL,
2215 signal => $signal,
2216 cb => sub {
2217 cf::cleanup "SIG$signal";
2218 },
2219 );
2220 }
2221}
2222
2223sub emergency_save {
2224 my $freeze_guard = cf::freeze_mainloop;
2225
2226 warn "enter emergency perl save\n";
2227
2228 cf::sync_job {
2229 # use a peculiar iteration method to avoid tripping on perl
2230 # refcount bugs in for. also avoids problems with players
2231 # and maps saved/Destroyed asynchronously.
2232 warn "begin emergency player save\n";
2233 for my $login (keys %cf::PLAYER) {
2234 my $pl = $cf::PLAYER{$login} or next;
2235 $pl->valid or next;
2236 $pl->save;
2237 }
2238 warn "end emergency player save\n";
2239
2240 warn "begin emergency map save\n";
2241 for my $path (keys %cf::MAP) {
2242 my $map = $cf::MAP{$path} or next;
2243 $map->valid or next;
2244 $map->save;
2245 }
2246 warn "end emergency map save\n";
2247 };
2248
2249 warn "leave emergency perl save\n";
2250}
2003 2251
2004sub reload() { 2252sub reload() {
2005 # can/must only be called in main 2253 # can/must only be called in main
2006 if ($Coro::current != $Coro::main) { 2254 if ($Coro::current != $Coro::main) {
2007 warn "can only reload from main coroutine\n"; 2255 warn "can only reload from main coroutine\n";
2008 return; 2256 return;
2009 } 2257 }
2010 2258
2011 warn "reloading..."; 2259 warn "reloading...";
2012 2260
2013 local $FREEZE = 1; 2261 my $guard = freeze_mainloop;
2014 cf::emergency_save; 2262 cf::emergency_save;
2015 2263
2016 eval { 2264 eval {
2017 # if anything goes wrong in here, we should simply crash as we already saved 2265 # if anything goes wrong in here, we should simply crash as we already saved
2018 2266
2080 cf::load_extensions; 2328 cf::load_extensions;
2081 2329
2082 # reattach attachments to objects 2330 # reattach attachments to objects
2083 warn "reattach"; 2331 warn "reattach";
2084 _global_reattach; 2332 _global_reattach;
2333 reattach $_ for values %MAP;
2085 }; 2334 };
2086 2335
2087 if ($@) { 2336 if ($@) {
2088 warn $@; 2337 warn $@;
2089 warn "error while reloading, exiting."; 2338 warn "error while reloading, exiting.";
2105 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2354 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2355 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2107 2356
2108 # dirty hack because... archetypes are not yet loaded 2357 # dirty hack because... archetypes are not yet loaded
2109 Event->timer ( 2358 Event->timer (
2110 after => 2, 2359 after => 10,
2111 cb => sub { 2360 cb => sub {
2112 $_[0]->w->cancel; 2361 $_[0]->w->cancel;
2113 2362
2114 # provide some exits "home" 2363 # provide some exits "home"
2115 my $exit = cf::object::new "exit"; 2364 my $exit = cf::object::new "exit";
2154 reentrant => 0, 2403 reentrant => 0,
2155 prio => 0, 2404 prio => 0,
2156 at => $NEXT_TICK || $TICK, 2405 at => $NEXT_TICK || $TICK,
2157 data => WF_AUTOCANCEL, 2406 data => WF_AUTOCANCEL,
2158 cb => sub { 2407 cb => sub {
2159 unless ($FREEZE) {
2160 cf::server_tick; # one server iteration 2408 cf::server_tick; # one server iteration
2161 $RUNTIME += $TICK; 2409 $RUNTIME += $TICK;
2162 }
2163
2164 $NEXT_TICK += $TICK; 2410 $NEXT_TICK += $TICK;
2411
2412 $WAIT_FOR_TICK->broadcast;
2413 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2165 2414
2166 # if we are delayed by four ticks or more, skip them all 2415 # if we are delayed by four ticks or more, skip them all
2167 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2416 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2168 2417
2169 $TICK_WATCHER->at ($NEXT_TICK); 2418 $TICK_WATCHER->at ($NEXT_TICK);
2191 or warn "ERROR: unable to write runtime file: $!"; 2440 or warn "ERROR: unable to write runtime file: $!";
2192 })->(); 2441 })->();
2193 }, 2442 },
2194); 2443);
2195 2444
2445END { cf::emergency_save }
2446
21961 24471
2197 2448

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