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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.153 by root, Mon Jan 8 23:36:16 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 Digest::MD5; 20use Digest::MD5;
21use Fcntl; 21use Fcntl;
22use IO::AIO 2.31 (); 22use IO::AIO 2.32 ();
23use YAML::Syck (); 23use YAML::Syck ();
24use Time::HiRes; 24use Time::HiRes;
25 25
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 26use Event; $Event::Eval = 1; # no idea why this is required, but it is
27 27
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 29$YAML::Syck::ImplicitUnicode = 1;
30 30
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 31$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32 32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 34
35our %COMMAND = (); 35our %COMMAND = ();
36our %COMMAND_TIME = (); 36our %COMMAND_TIME = ();
47our %CFG; 47our %CFG;
48 48
49our $UPTIME; $UPTIME ||= time; 49our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 50our $RUNTIME;
51 51
52our %PLAYER; # all users
52our %MAP; # all maps 53our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 54our $LINK_MAP; # the special {link} map
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 55our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 56our %EXT_CORO; # coroutines bound to extensions
57 57
58binmode STDOUT; 58binmode STDOUT;
59binmode STDERR; 59binmode STDERR;
60 60
61# read virtual server time, if available 61# read virtual server time, if available
71mkdir cf::localdir . "/" . cf::uniquedir; 71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 72mkdir $RANDOM_MAPS;
73 73
74# a special map that is always available 74# a special map that is always available
75our $LINK_MAP; 75our $LINK_MAP;
76 76our $EMERGENCY_POSITION;
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 77
79############################################################################# 78#############################################################################
80 79
81=head2 GLOBAL VARIABLES 80=head2 GLOBAL VARIABLES
82 81
119 utf8::encode $msg; 118 utf8::encode $msg;
120 119
121 $msg .= "\n" 120 $msg .= "\n"
122 unless $msg =~ /\n$/; 121 unless $msg =~ /\n$/;
123 122
124 LOG llevError, "cfperl: $msg"; 123 LOG llevError, $msg;
125 }; 124 };
126} 125}
127 126
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 127@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 128@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
181sub to_json($) { 180sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 181 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 182 JSON::Syck::Dump $_[0]
184} 183}
185 184
185=item cf::lock_wait $string
186
187Wait until the given lock is available. See cf::lock_acquire.
188
189=item my $lock = cf::lock_acquire $string
190
191Wait until the given lock is available and then acquires it and returns
192a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193for example when the coroutine gets canceled), the lock is automatically
194returned.
195
196Lock names should begin with a unique identifier (for example, cf::map::find
197uses map_find and cf::map::load uses map_load).
198
199=cut
200
201our %LOCK;
202
203sub lock_wait($) {
204 my ($key) = @_;
205
206 # wait for lock, if any
207 while ($LOCK{$key}) {
208 push @{ $LOCK{$key} }, $Coro::current;
209 Coro::schedule;
210 }
211}
212
213sub lock_acquire($) {
214 my ($key) = @_;
215
216 # wait, to be sure we are not locked
217 lock_wait $key;
218
219 $LOCK{$key} = [];
220
221 Coro::guard {
222 # wake up all waiters, to be on the safe side
223 $_->ready for @{ delete $LOCK{$key} };
224 }
225}
226
227sub freeze_mainloop {
228 return unless $TICK_WATCHER->is_active;
229
230 my $guard = Coro::guard { $TICK_WATCHER->start };
231 $TICK_WATCHER->stop;
232 $guard
233}
234
235=item cf::async { BLOCK }
236
237Currently the same as Coro::async_pool, meaning you cannot use
238C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
239thing you are allowed to do is call C<prio> on it.
240
241=cut
242
243BEGIN { *async = \&Coro::async_pool }
244
186=item cf::sync_job { BLOCK } 245=item cf::sync_job { BLOCK }
187 246
188The design of crossfire+ requires that the main coro ($Coro::main) is 247The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 248always able to handle events or runnable, as crossfire+ is only partly
190reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 249reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
203 # this is the main coro, too bad, we have to block 262 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 263 # till the operation succeeds, freezing the server :/
205 264
206 # TODO: use suspend/resume instead 265 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 266 # (but this is cancel-safe)
208 local $FREEZE = 1; 267 my $freeze_guard = freeze_mainloop;
209 268
210 my $busy = 1; 269 my $busy = 1;
211 my @res; 270 my @res;
212 271
213 (Coro::async { 272 (async {
214 @res = eval { $job->() }; 273 @res = eval { $job->() };
215 warn $@ if $@; 274 warn $@ if $@;
216 undef $busy; 275 undef $busy;
217 })->prio (Coro::PRIO_MAX); 276 })->prio (Coro::PRIO_MAX);
218 277
219 while ($busy) { 278 while ($busy) {
220 Coro::cede_notself; 279 Coro::cede or Event::one_event;
221 Event::one_event unless Coro::nready;
222 } 280 }
223 281
224 wantarray ? @res : $res[0] 282 wantarray ? @res : $res[0]
225 } else { 283 } else {
226 # we are in another coroutine, how wonderful, everything just works 284 # we are in another coroutine, how wonderful, everything just works
227 285
228 $job->() 286 $job->()
229 } 287 }
230} 288}
231 289
232=item $coro = cf::coro { BLOCK } 290=item $coro = cf::async_ext { BLOCK }
233 291
234Creates and returns a new coro. This coro is automcatially being canceled 292Like async, but this coro is automcatially being canceled when the
235when the extension calling this is being unloaded. 293extension calling this is being unloaded.
236 294
237=cut 295=cut
238 296
239sub coro(&) { 297sub async_ext(&) {
240 my $cb = shift; 298 my $cb = shift;
241 299
242 my $coro; $coro = async { 300 my $coro = &Coro::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 301
249 $coro->on_destroy (sub { 302 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 303 delete $EXT_CORO{$coro+0};
251 }); 304 });
252 $EXT_CORO{$coro+0} = $coro; 305 $EXT_CORO{$coro+0} = $coro;
817 (aio_load "$filename.pst", $av) >= 0 870 (aio_load "$filename.pst", $av) >= 0
818 or return; 871 or return;
819 $av = eval { (Storable::thaw $av)->{objs} }; 872 $av = eval { (Storable::thaw $av)->{objs} };
820 } 873 }
821 874
875 warn sprintf "loading %s (%d)\n",
876 $filename, length $data, scalar @{$av || []};#d#
822 return ($data, $av); 877 return ($data, $av);
823} 878}
824 879
825############################################################################# 880#############################################################################
826# command handling &c 881# command handling &c
1017 1072
1018=head2 CORE EXTENSIONS 1073=head2 CORE EXTENSIONS
1019 1074
1020Functions and methods that extend core crossfire objects. 1075Functions and methods that extend core crossfire objects.
1021 1076
1077=cut
1078
1079package cf::player;
1080
1022=head3 cf::player 1081=head3 cf::player
1023 1082
1024=over 4 1083=over 4
1025 1084
1026=item cf::player::exists $login 1085=item cf::player::find $login
1027 1086
1028Returns true when the given account exists. 1087Returns the given player object, loading it if necessary (might block).
1029 1088
1030=cut 1089=cut
1031 1090
1032sub cf::player::exists($) { 1091sub playerdir($) {
1033 cf::player::find $_[0] 1092 cf::localdir
1034 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1093 . "/"
1094 . cf::playerdir
1095 . "/"
1096 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1097}
1098
1099sub path($) {
1100 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101
1102 (playerdir $login) . "/$login.pl"
1103}
1104
1105sub find_active($) {
1106 $cf::PLAYER{$_[0]}
1107 and $cf::PLAYER{$_[0]}->active
1108 and $cf::PLAYER{$_[0]}
1109}
1110
1111sub exists($) {
1112 my ($login) = @_;
1113
1114 $cf::PLAYER{$login}
1115 or cf::sync_job { !aio_stat $login }
1116}
1117
1118sub find($) {
1119 return $cf::PLAYER{$_[0]} || do {
1120 my $login = $_[0];
1121
1122 my $guard = cf::lock_acquire "user_find:$login";
1123
1124 $cf::PLAYER{$_[0]} || do {
1125 my $pl = load_pl path $login
1126 or return;
1127 $cf::PLAYER{$login} = $pl
1128 }
1129 }
1130}
1131
1132sub save($) {
1133 my ($pl) = @_;
1134
1135 return if $pl->{deny_save};
1136
1137 my $path = path $pl;
1138 my $guard = cf::lock_acquire "user_save:$path";
1139
1140 return if $pl->{deny_save};
1141
1142 Coro::AIO::aio_mkdir playerdir $pl, 0770;
1143 $pl->{last_save} = $cf::RUNTIME;
1144
1145 $pl->save_pl ($path);
1146 Coro::cede;
1147}
1148
1149sub new($) {
1150 my ($login) = @_;
1151
1152 my $self = create;
1153
1154 $self->ob->name ($login);
1155 $self->{deny_save} = 1;
1156
1157 $cf::PLAYER{$login} = $self;
1158
1159 $self
1160}
1161
1162sub quit_character {
1163 my ($pl) = @_;
1164
1165 $pl->{deny_save} = 1;
1166 $pl->password ("*"); # this should lock out the player until we nuked the dir
1167
1168 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1169 $pl->deactivate;
1170 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1171 $pl->ns->destroy if $pl->ns;
1172
1173 my $path = playerdir $pl;
1174 my $temp = "$path~$cf::RUNTIME~deleting~";
1175 Coro::AIO::aio_rename $path, $temp;
1176 delete $cf::PLAYER{$pl->ob->name};
1177 $pl->destroy;
1178 IO::AIO::aio_rmtree $temp;
1035} 1179}
1036 1180
1037=item $player->ext_reply ($msgid, $msgtype, %msg) 1181=item $player->ext_reply ($msgid, $msgtype, %msg)
1038 1182
1039Sends an ext reply to the player. 1183Sends an ext reply to the player.
1040 1184
1041=cut 1185=cut
1042 1186
1043sub cf::player::ext_reply($$$%) { 1187sub ext_reply($$$%) {
1044 my ($self, $id, %msg) = @_; 1188 my ($self, $id, %msg) = @_;
1045 1189
1046 $msg{msgid} = $id; 1190 $msg{msgid} = $id;
1047 1191
1048 $self->send ("ext " . to_json \%msg); 1192 $self->send ("ext " . cf::to_json \%msg);
1049} 1193}
1194
1195package cf;
1050 1196
1051=back 1197=back
1052 1198
1053 1199
1054=head3 cf::map 1200=head3 cf::map
1060package cf::map; 1206package cf::map;
1061 1207
1062use Fcntl; 1208use Fcntl;
1063use Coro::AIO; 1209use Coro::AIO;
1064 1210
1065our $MAX_RESET = 7200; 1211our $MAX_RESET = 3600;
1066our $DEFAULT_RESET = 3600; 1212our $DEFAULT_RESET = 3000;
1067 1213
1068sub generate_random_map { 1214sub generate_random_map {
1069 my ($path, $rmp) = @_; 1215 my ($path, $rmp) = @_;
1070 1216
1071 # mit "rum" bekleckern, nicht 1217 # mit "rum" bekleckern, nicht
1087# and all this just because we cannot iterate over 1233# and all this just because we cannot iterate over
1088# all maps in C++... 1234# all maps in C++...
1089sub change_all_map_light { 1235sub change_all_map_light {
1090 my ($change) = @_; 1236 my ($change) = @_;
1091 1237
1092 $_->change_map_light ($change) for values %cf::MAP; 1238 $_->change_map_light ($change)
1239 for grep $_->outdoor, values %cf::MAP;
1093} 1240}
1094 1241
1095sub try_load_header($) { 1242sub try_load_header($) {
1096 my ($path) = @_; 1243 my ($path) = @_;
1097 1244
1100 or return; 1247 or return;
1101 1248
1102 my $map = cf::map::new 1249 my $map = cf::map::new
1103 or return; 1250 or return;
1104 1251
1252 # for better error messages only, will be overwritten
1253 $map->path ($path);
1254
1105 $map->load_header ($path) 1255 $map->load_header ($path)
1106 or return; 1256 or return;
1107 1257
1108 $map->{load_path} = $path; 1258 $map->{load_path} = $path;
1109 1259
1110 $map 1260 $map
1111} 1261}
1112 1262
1263sub find;
1113sub find_map { 1264sub find {
1114 my ($path, $origin) = @_; 1265 my ($path, $origin) = @_;
1115 1266
1116 #warn "find_map<$path,$origin>\n";#d# 1267 #warn "find<$path,$origin>\n";#d#
1117 1268
1118 $path = new cf::path $path, $origin && $origin->path; 1269 $path = new cf::path $path, $origin && $origin->path;
1119 my $key = $path->as_string; 1270 my $key = $path->as_string;
1120 1271
1272 cf::lock_wait "map_find:$key";
1273
1121 $cf::MAP{$key} || do { 1274 $cf::MAP{$key} || do {
1275 my $guard = cf::lock_acquire "map_find:$key";
1276
1122 # do it the slow way 1277 # do it the slow way
1123 my $map = try_load_header $path->save_path; 1278 my $map = try_load_header $path->save_path;
1124 1279
1280 Coro::cede;
1281
1125 if ($map) { 1282 if ($map) {
1283 $map->last_access ((delete $map->{last_access})
1284 || $cf::RUNTIME); #d#
1126 # safety 1285 # safety
1127 $map->{instantiate_time} = $cf::RUNTIME 1286 $map->{instantiate_time} = $cf::RUNTIME
1128 if $map->{instantiate_time} > $cf::RUNTIME; 1287 if $map->{instantiate_time} > $cf::RUNTIME;
1129 } else { 1288 } else {
1130 if (my $rmp = $path->random_map_params) { 1289 if (my $rmp = $path->random_map_params) {
1135 1294
1136 $map or return; 1295 $map or return;
1137 1296
1138 $map->{load_original} = 1; 1297 $map->{load_original} = 1;
1139 $map->{instantiate_time} = $cf::RUNTIME; 1298 $map->{instantiate_time} = $cf::RUNTIME;
1299 $map->last_access ($cf::RUNTIME);
1140 $map->instantiate; 1300 $map->instantiate;
1141 1301
1142 # per-player maps become, after loading, normal maps 1302 # per-player maps become, after loading, normal maps
1143 $map->per_player (0) if $path->{user_rel}; 1303 $map->per_player (0) if $path->{user_rel};
1144 } 1304 }
1145 1305
1146 $map->path ($key); 1306 $map->path ($key);
1147 $map->{path} = $path; 1307 $map->{path} = $path;
1148 $map->last_access ($cf::RUNTIME); 1308 $map->{last_save} = $cf::RUNTIME;
1309
1310 Coro::cede;
1149 1311
1150 if ($map->should_reset) { 1312 if ($map->should_reset) {
1151 $map->reset; 1313 $map->reset;
1314 undef $guard;
1152 $map = find_map $path; 1315 $map = find $path
1316 or return;
1153 } 1317 }
1154 1318
1155 $cf::MAP{$key} = $map 1319 $cf::MAP{$key} = $map
1156 } 1320 }
1157} 1321}
1158 1322
1159sub load { 1323sub load {
1160 my ($self) = @_; 1324 my ($self) = @_;
1161 1325
1326 my $path = $self->{path};
1327 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1328
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1329 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1330
1164 $self->in_memory (cf::MAP_LOADING); 1331 $self->in_memory (cf::MAP_LOADING);
1165
1166 my $path = $self->{path};
1167 1332
1168 $self->alloc; 1333 $self->alloc;
1169 $self->load_objects ($self->{load_path}, 1) 1334 $self->load_objects ($self->{load_path}, 1)
1170 or return; 1335 or return;
1171 1336
1177 if (aio_open $uniq, O_RDONLY, 0) { 1342 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items; 1343 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0); 1344 $self->load_objects ($uniq, 0);
1180 } 1345 }
1181 } 1346 }
1347
1348 Coro::cede;
1182 1349
1183 # now do the right thing for maps 1350 # now do the right thing for maps
1184 $self->link_multipart_objects; 1351 $self->link_multipart_objects;
1185 1352
1186 if ($self->{path}->is_style_map) { 1353 if ($self->{path}->is_style_map) {
1194 $self->difficulty ($self->estimate_difficulty) 1361 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty; 1362 unless $self->difficulty;
1196 $self->activate; 1363 $self->activate;
1197 } 1364 }
1198 1365
1366 Coro::cede;
1367
1199 $self->in_memory (cf::MAP_IN_MEMORY); 1368 $self->in_memory (cf::MAP_IN_MEMORY);
1200} 1369}
1201 1370
1202sub load_map_sync { 1371sub find_sync {
1203 my ($path, $origin) = @_; 1372 my ($path, $origin) = @_;
1204 1373
1205 #warn "load_map_sync<$path, $origin>\n";#d# 1374 cf::sync_job { cf::map::find $path, $origin }
1375}
1206 1376
1207 cf::sync_job { 1377sub do_load_sync {
1208 my $map = cf::map::find_map $path, $origin 1378 my ($map) = @_;
1209 or return; 1379
1210 $map->load; 1380 cf::sync_job { $map->load };
1211 $map
1212 }
1213} 1381}
1214 1382
1215sub save { 1383sub save {
1216 my ($self) = @_; 1384 my ($self) = @_;
1217 1385
1386 my $lock = cf::lock_acquire "map_data:" . $self->path;
1387
1388 $self->{last_save} = $cf::RUNTIME;
1389
1390 return unless $self->dirty;
1391
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1392 my $save = $self->{path}->save_path; utf8::encode $save;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1393 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220 1394
1221 $self->{last_save} = $cf::RUNTIME;
1222
1223 return unless $self->dirty;
1224
1225 $self->{load_path} = $save; 1395 $self->{load_path} = $save;
1226 1396
1227 return if $self->{deny_save}; 1397 return if $self->{deny_save};
1398
1399 local $self->{last_access} = $self->last_access;#d#
1400
1401 cf::async {
1402 $_->contr->save for $self->players;
1403 };
1228 1404
1229 if ($uniq) { 1405 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1406 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES); 1407 $self->save_objects ($uniq, cf::IO_UNIQUES);
1232 } else { 1408 } else {
1235} 1411}
1236 1412
1237sub swap_out { 1413sub swap_out {
1238 my ($self) = @_; 1414 my ($self) = @_;
1239 1415
1416 # save first because save cedes
1417 $self->save;
1418
1419 my $lock = cf::lock_acquire "map_data:" . $self->path;
1420
1240 return if $self->players; 1421 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY; 1422 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save}; 1423 return if $self->{deny_save};
1243 1424
1244 $self->save;
1245 $self->clear; 1425 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED); 1426 $self->in_memory (cf::MAP_SWAPPED);
1247} 1427}
1248 1428
1249sub reset_at { 1429sub reset_at {
1287} 1467}
1288 1468
1289sub reset { 1469sub reset {
1290 my ($self) = @_; 1470 my ($self) = @_;
1291 1471
1472 my $lock = cf::lock_acquire "map_data:" . $self->path;
1473
1292 return if $self->players; 1474 return if $self->players;
1293 return if $self->{path}{user_rel};#d# 1475 return if $self->{path}{user_rel};#d#
1294 1476
1295 warn "resetting map ", $self->path;#d# 1477 warn "resetting map ", $self->path;#d#
1296 1478
1315 1497
1316sub customise_for { 1498sub customise_for {
1317 my ($map, $ob) = @_; 1499 my ($map, $ob) = @_;
1318 1500
1319 if ($map->per_player) { 1501 if ($map->per_player) {
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1502 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1321 } 1503 }
1322 1504
1323 $map 1505 $map
1324} 1506}
1325 1507
1326sub emergency_save { 1508sub emergency_save {
1327 local $cf::FREEZE = 1; 1509 my $freeze_guard = cf::freeze_mainloop;
1328 1510
1329 warn "enter emergency map save\n"; 1511 warn "enter emergency perl save\n";
1330 1512
1331 cf::sync_job { 1513 cf::sync_job {
1514 warn "begin emergency player save\n";
1515 $_->save for values %cf::PLAYER;
1516 warn "end emergency player save\n";
1517
1332 warn "begin emergency map save\n"; 1518 warn "begin emergency map save\n";
1333 $_->save for values %cf::MAP; 1519 $_->save for values %cf::MAP;
1520 warn "end emergency map save\n";
1334 }; 1521 };
1335 1522
1336 warn "end emergency map save\n"; 1523 warn "leave emergency perl save\n";
1337} 1524}
1338 1525
1339package cf; 1526package cf;
1340 1527
1341=back 1528=back
1383 (ref $cf::CFG{"may_$access"} 1570 (ref $cf::CFG{"may_$access"}
1384 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1571 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385 : $cf::CFG{"may_$access"}) 1572 : $cf::CFG{"may_$access"})
1386} 1573}
1387 1574
1575=item $player_object->enter_link
1576
1577Freezes the player and moves him/her to a special map (C<{link}>).
1578
1579The player should be reaosnably safe there for short amounts of time. You
1580I<MUST> call C<leave_link> as soon as possible, though.
1581
1582=item $player_object->leave_link ($map, $x, $y)
1583
1584Moves the player out of the specila link map onto the given map. If the
1585map is not valid (or omitted), the player will be moved back to the
1586location he/she was before the call to C<enter_link>, or, if that fails,
1587to the emergency map position.
1588
1589Might block.
1590
1591=cut
1592
1388sub cf::object::player::enter_link { 1593sub cf::object::player::enter_link {
1389 my ($self) = @_; 1594 my ($self) = @_;
1390 1595
1596 $self->deactivate_recursive;
1597
1391 return if $self->map == $LINK_MAP; 1598 return if $self->map == $LINK_MAP;
1392 1599
1393 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1600 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1394 if $self->map; 1601 if $self->map;
1395 1602
1396 $self->enter_map ($LINK_MAP, 20, 20); 1603 $self->enter_map ($LINK_MAP, 20, 20);
1397 $self->deactivate_recursive;
1398} 1604}
1399 1605
1400sub cf::object::player::leave_link { 1606sub cf::object::player::leave_link {
1401 my ($self, $map, $x, $y) = @_; 1607 my ($self, $map, $x, $y) = @_;
1402 1608
1403 my $link_pos = delete $self->{_link_pos}; 1609 my $link_pos = delete $self->{_link_pos};
1404 1610
1405 unless ($map) { 1611 unless ($map) {
1406 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408 # restore original map position 1612 # restore original map position
1409 ($map, $x, $y) = @{ $link_pos || [] }; 1613 ($map, $x, $y) = @{ $link_pos || [] };
1410 $map = cf::map::find_map $map; 1614 $map = cf::map::find $map;
1411 1615
1412 unless ($map) { 1616 unless ($map) {
1413 ($map, $x, $y) = @$EMERGENCY_POSITION; 1617 ($map, $x, $y) = @$EMERGENCY_POSITION;
1414 $map = cf::map::find_map $map 1618 $map = cf::map::find $map
1415 or die "FATAL: cannot load emergency map\n"; 1619 or die "FATAL: cannot load emergency map\n";
1416 } 1620 }
1417 } 1621 }
1418 1622
1419 ($x, $y) = (-1, -1) 1623 ($x, $y) = (-1, -1)
1423 ($x, $y) = ($map->enter_x, $map->enter_y) 1627 ($x, $y) = ($map->enter_x, $map->enter_y)
1424 if $x <=0 && $y <= 0; 1628 if $x <=0 && $y <= 0;
1425 1629
1426 $map->load; 1630 $map->load;
1427 1631
1632 return unless $self->contr->active;
1428 $self->activate_recursive; 1633 $self->activate_recursive;
1429 $self->enter_map ($map, $x, $y); 1634 $self->enter_map ($map, $x, $y);
1430} 1635}
1431 1636
1637cf::player->attach (
1638 on_logout => sub {
1639 my ($pl) = @_;
1640
1641 # abort map switching before logout
1642 if ($pl->ob->{_link_pos}) {
1643 cf::sync_job {
1644 $pl->ob->leave_link
1645 };
1646 }
1647 },
1648 on_login => sub {
1649 my ($pl) = @_;
1650
1651 # try to abort aborted map switching on player login :)
1652 # should happen only on crashes
1653 if ($pl->ob->{_link_pos}) {
1654 $pl->ob->enter_link;
1655 (async {
1656 # we need this sleep as the login has a concurrent enter_exit running
1657 # and this sleep increases chances of the player not ending up in scorn
1658 $pl->ob->reply (undef,
1659 "There was an internal problem at your last logout, "
1660 . "the server will try to bring you to your intended destination in a second.",
1661 cf::NDI_RED);
1662 Coro::Timer::sleep 1;
1663 $pl->ob->leave_link;
1664 })->prio (2);
1665 }
1666 },
1667);
1668
1432=item $player_object->goto_map ($map, $x, $y) 1669=item $player_object->goto ($path, $x, $y)
1433 1670
1434=cut 1671=cut
1435 1672
1436sub cf::object::player::goto_map { 1673sub cf::object::player::goto {
1437 my ($self, $path, $x, $y) = @_; 1674 my ($self, $path, $x, $y) = @_;
1438 1675
1676 $path = new cf::path $path;
1677 $path ne "/" or Carp::cluck ("oy");#d#
1678
1439 $self->enter_link; 1679 $self->enter_link;
1440 1680
1441 (Coro::async { 1681 (async {
1442 $path = new cf::path $path;
1443
1444 my $map = cf::map::find_map $path->as_string; 1682 my $map = cf::map::find $path->as_string;
1445 $map = $map->customise_for ($self) if $map; 1683 $map = $map->customise_for ($self) if $map;
1446 1684
1447 warn "entering ", $map->path, " at ($x, $y)\n" 1685# warn "entering ", $map->path, " at ($x, $y)\n"
1448 if $map; 1686# if $map;
1687
1688 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1449 1689
1450 $self->leave_link ($map, $x, $y); 1690 $self->leave_link ($map, $x, $y);
1451 })->prio (1); 1691 })->prio (1);
1452} 1692}
1453 1693
1506 1746
1507 return unless $self->type == cf::PLAYER; 1747 return unless $self->type == cf::PLAYER;
1508 1748
1509 $self->enter_link; 1749 $self->enter_link;
1510 1750
1511 (Coro::async { 1751 (async {
1752 $self->deactivate_recursive; # just to be sure
1512 unless (eval { 1753 unless (eval {
1513
1514 prepare_random_map $exit 1754 prepare_random_map $exit
1515 if $exit->slaying eq "/!"; 1755 if $exit->slaying eq "/!";
1516 1756
1517 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1757 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1518 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1758 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1519 1759
1520 1; 1760 1;
1521 }) { 1761 }) {
1522 $self->message ("Something went wrong deep within the crossfire server. " 1762 $self->message ("Something went wrong deep within the crossfire server. "
1523 . "I'll try to bring you back to the map you were before. " 1763 . "I'll try to bring you back to the map you were before. "
1580 on_reply => sub { 1820 on_reply => sub {
1581 my ($ns, $msg) = @_; 1821 my ($ns, $msg) = @_;
1582 1822
1583 # this weird shuffling is so that direct followup queries 1823 # this weird shuffling is so that direct followup queries
1584 # get handled first 1824 # get handled first
1585 my $queue = delete $ns->{query_queue}; 1825 my $queue = delete $ns->{query_queue}
1826 or return; # be conservative, not sure how that can happen, but we saw a crash here
1586 1827
1587 (shift @$queue)->[1]->($msg); 1828 (shift @$queue)->[1]->($msg);
1588 1829
1589 push @{ $ns->{query_queue} }, @$queue; 1830 push @{ $ns->{query_queue} }, @$queue;
1590 1831
1596 } 1837 }
1597 } 1838 }
1598 }, 1839 },
1599); 1840);
1600 1841
1601=item $client->coro (\&cb) 1842=item $client->async (\&cb)
1602 1843
1603Create a new coroutine, running the specified callback. The coroutine will 1844Create a new coroutine, running the specified callback. The coroutine will
1604be automatically cancelled when the client gets destroyed (e.g. on logout, 1845be automatically cancelled when the client gets destroyed (e.g. on logout,
1605or loss of connection). 1846or loss of connection).
1606 1847
1607=cut 1848=cut
1608 1849
1609sub cf::client::coro { 1850sub cf::client::async {
1610 my ($self, $cb) = @_; 1851 my ($self, $cb) = @_;
1611 1852
1612 my $coro; $coro = async { 1853 my $coro = &Coro::async ($cb);
1613 eval {
1614 $cb->();
1615 };
1616 warn $@ if $@;
1617 };
1618 1854
1619 $coro->on_destroy (sub { 1855 $coro->on_destroy (sub {
1620 delete $self->{_coro}{$coro+0}; 1856 delete $self->{_coro}{$coro+0};
1621 }); 1857 });
1622 1858
1794 2030
1795{ 2031{
1796 my $path = cf::localdir . "/database.pst"; 2032 my $path = cf::localdir . "/database.pst";
1797 2033
1798 sub db_load() { 2034 sub db_load() {
1799 warn "loading database $path\n";#d# remove later
1800 $DB = stat $path ? Storable::retrieve $path : { }; 2035 $DB = stat $path ? Storable::retrieve $path : { };
1801 } 2036 }
1802 2037
1803 my $pid; 2038 my $pid;
1804 2039
1805 sub db_save() { 2040 sub db_save() {
1806 warn "saving database $path\n";#d# remove later
1807 waitpid $pid, 0 if $pid; 2041 waitpid $pid, 0 if $pid;
1808 if (0 == ($pid = fork)) { 2042 if (0 == ($pid = fork)) {
1809 $DB->{_meta}{version} = 1; 2043 $DB->{_meta}{version} = 1;
1810 Storable::nstore $DB, "$path~"; 2044 Storable::nstore $DB, "$path~";
1811 rename "$path~", $path; 2045 rename "$path~", $path;
1859 open my $fh, "<:utf8", cf::confdir . "/config" 2093 open my $fh, "<:utf8", cf::confdir . "/config"
1860 or return; 2094 or return;
1861 2095
1862 local $/; 2096 local $/;
1863 *CFG = YAML::Syck::Load <$fh>; 2097 *CFG = YAML::Syck::Load <$fh>;
2098
2099 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2100
2101 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2102 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2103
2104 if (exists $CFG{mlockall}) {
2105 eval {
2106 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2107 and die "WARNING: m(un)lockall failed: $!\n";
2108 };
2109 warn $@ if $@;
2110 }
1864} 2111}
1865 2112
1866sub main { 2113sub main {
1867 # we must not ever block the main coroutine 2114 # we must not ever block the main coroutine
1868 local $Coro::idle = sub { 2115 local $Coro::idle = sub {
1869 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2116 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870 (Coro::unblock_sub {
1871 Event::one_event; 2117 async { Event::one_event };
1872 })->();
1873 }; 2118 };
1874 2119
1875 cfg_load; 2120 cfg_load;
1876 db_load; 2121 db_load;
1877 load_extensions; 2122 load_extensions;
1888 return; 2133 return;
1889 } 2134 }
1890 2135
1891 warn "reloading..."; 2136 warn "reloading...";
1892 2137
1893 local $FREEZE = 1; 2138 my $guard = freeze_mainloop;
1894 cf::emergency_save; 2139 cf::emergency_save;
1895 2140
1896 eval { 2141 eval {
1897 # if anything goes wrong in here, we should simply crash as we already saved 2142 # if anything goes wrong in here, we should simply crash as we already saved
1898 2143
1960 cf::load_extensions; 2205 cf::load_extensions;
1961 2206
1962 # reattach attachments to objects 2207 # reattach attachments to objects
1963 warn "reattach"; 2208 warn "reattach";
1964 _global_reattach; 2209 _global_reattach;
2210 reattach $_ for values %MAP;
1965 }; 2211 };
1966 2212
1967 if ($@) { 2213 if ($@) {
1968 warn $@; 2214 warn $@;
1969 warn "error while reloading, exiting."; 2215 warn "error while reloading, exiting.";
1985 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2231 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1986 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2232 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1987 2233
1988 # dirty hack because... archetypes are not yet loaded 2234 # dirty hack because... archetypes are not yet loaded
1989 Event->timer ( 2235 Event->timer (
1990 after => 2, 2236 after => 10,
1991 cb => sub { 2237 cb => sub {
1992 $_[0]->w->cancel; 2238 $_[0]->w->cancel;
1993 2239
1994 # provide some exits "home" 2240 # provide some exits "home"
1995 my $exit = cf::object::new "exit"; 2241 my $exit = cf::object::new "exit";
2034 reentrant => 0, 2280 reentrant => 0,
2035 prio => 0, 2281 prio => 0,
2036 at => $NEXT_TICK || $TICK, 2282 at => $NEXT_TICK || $TICK,
2037 data => WF_AUTOCANCEL, 2283 data => WF_AUTOCANCEL,
2038 cb => sub { 2284 cb => sub {
2039 unless ($FREEZE) {
2040 cf::server_tick; # one server iteration 2285 cf::server_tick; # one server iteration
2041 $RUNTIME += $TICK; 2286 $RUNTIME += $TICK;
2042 }
2043
2044 $NEXT_TICK += $TICK; 2287 $NEXT_TICK += $TICK;
2045 2288
2046 # if we are delayed by four ticks or more, skip them all 2289 # if we are delayed by four ticks or more, skip them all
2047 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2290 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2048 2291
2071 or warn "ERROR: unable to write runtime file: $!"; 2314 or warn "ERROR: unable to write runtime file: $!";
2072 })->(); 2315 })->();
2073 }, 2316 },
2074); 2317);
2075 2318
2319END { cf::emergency_save }
2320
20761 23211
2077 2322

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