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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 1.150 by root, Mon Jan 8 19:25:53 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 $cf::PLAYER{$login} ||= (load_pl path $login or return);
1125 };
1126}
1127
1128sub save($) {
1129 my ($pl) = @_;
1130
1131 return if $pl->{deny_save};
1132
1133 my $path = path $pl;
1134 my $guard = cf::lock_acquire "user_save:$path";
1135
1136 return if $pl->{deny_save};
1137
1138 Coro::AIO::aio_mkdir playerdir $pl, 0770;
1139 $pl->{last_save} = $cf::RUNTIME;
1140
1141 $pl->save_pl ($path);
1142 Coro::cede;
1143}
1144
1145sub new($) {
1146 my ($login) = @_;
1147
1148 my $self = create;
1149
1150 $self->ob->name ($login);
1151 $self->{deny_save} = 1;
1152
1153 $cf::PLAYER{$login} = $self;
1154
1155 $self
1156}
1157
1158sub quit_character {
1159 my ($pl) = @_;
1160
1161 $pl->{deny_save} = 1;
1162 $pl->password ("*"); # this should lock out the player until we nuked the dir
1163
1164 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1165 $pl->deactivate;
1166 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1167 $pl->ns->destroy if $pl->ns;
1168
1169 my $path = playerdir $pl;
1170 my $temp = "$path~$cf::RUNTIME~deleting~";
1171 Coro::AIO::aio_rename $path, $temp;
1172 delete $cf::PLAYER{$pl->ob->name};
1173 $pl->destroy;
1174 IO::AIO::aio_rmtree $temp;
1035} 1175}
1036 1176
1037=item $player->ext_reply ($msgid, $msgtype, %msg) 1177=item $player->ext_reply ($msgid, $msgtype, %msg)
1038 1178
1039Sends an ext reply to the player. 1179Sends an ext reply to the player.
1040 1180
1041=cut 1181=cut
1042 1182
1043sub cf::player::ext_reply($$$%) { 1183sub ext_reply($$$%) {
1044 my ($self, $id, %msg) = @_; 1184 my ($self, $id, %msg) = @_;
1045 1185
1046 $msg{msgid} = $id; 1186 $msg{msgid} = $id;
1047 1187
1048 $self->send ("ext " . to_json \%msg); 1188 $self->send ("ext " . cf::to_json \%msg);
1049} 1189}
1190
1191package cf;
1050 1192
1051=back 1193=back
1052 1194
1053 1195
1054=head3 cf::map 1196=head3 cf::map
1060package cf::map; 1202package cf::map;
1061 1203
1062use Fcntl; 1204use Fcntl;
1063use Coro::AIO; 1205use Coro::AIO;
1064 1206
1065our $MAX_RESET = 7200; 1207our $MAX_RESET = 3600;
1066our $DEFAULT_RESET = 3600; 1208our $DEFAULT_RESET = 3000;
1067 1209
1068sub generate_random_map { 1210sub generate_random_map {
1069 my ($path, $rmp) = @_; 1211 my ($path, $rmp) = @_;
1070 1212
1071 # mit "rum" bekleckern, nicht 1213 # mit "rum" bekleckern, nicht
1087# and all this just because we cannot iterate over 1229# and all this just because we cannot iterate over
1088# all maps in C++... 1230# all maps in C++...
1089sub change_all_map_light { 1231sub change_all_map_light {
1090 my ($change) = @_; 1232 my ($change) = @_;
1091 1233
1092 $_->change_map_light ($change) for values %cf::MAP; 1234 $_->change_map_light ($change)
1235 for grep $_->outdoor, values %cf::MAP;
1093} 1236}
1094 1237
1095sub try_load_header($) { 1238sub try_load_header($) {
1096 my ($path) = @_; 1239 my ($path) = @_;
1097 1240
1100 or return; 1243 or return;
1101 1244
1102 my $map = cf::map::new 1245 my $map = cf::map::new
1103 or return; 1246 or return;
1104 1247
1248 # for better error messages only, will be overwritten
1249 $map->path ($path);
1250
1105 $map->load_header ($path) 1251 $map->load_header ($path)
1106 or return; 1252 or return;
1107 1253
1108 $map->{load_path} = $path; 1254 $map->{load_path} = $path;
1109 1255
1110 $map 1256 $map
1111} 1257}
1112 1258
1259sub find;
1113sub find_map { 1260sub find {
1114 my ($path, $origin) = @_; 1261 my ($path, $origin) = @_;
1115 1262
1116 #warn "find_map<$path,$origin>\n";#d# 1263 #warn "find<$path,$origin>\n";#d#
1117 1264
1118 $path = new cf::path $path, $origin && $origin->path; 1265 $path = new cf::path $path, $origin && $origin->path;
1119 my $key = $path->as_string; 1266 my $key = $path->as_string;
1120 1267
1268 cf::lock_wait "map_find:$key";
1269
1121 $cf::MAP{$key} || do { 1270 $cf::MAP{$key} || do {
1271 my $guard = cf::lock_acquire "map_find:$key";
1272
1122 # do it the slow way 1273 # do it the slow way
1123 my $map = try_load_header $path->save_path; 1274 my $map = try_load_header $path->save_path;
1124 1275
1276 Coro::cede;
1277
1125 if ($map) { 1278 if ($map) {
1279 $map->last_access ((delete $map->{last_access})
1280 || $cf::RUNTIME); #d#
1126 # safety 1281 # safety
1127 $map->{instantiate_time} = $cf::RUNTIME 1282 $map->{instantiate_time} = $cf::RUNTIME
1128 if $map->{instantiate_time} > $cf::RUNTIME; 1283 if $map->{instantiate_time} > $cf::RUNTIME;
1129 } else { 1284 } else {
1130 if (my $rmp = $path->random_map_params) { 1285 if (my $rmp = $path->random_map_params) {
1135 1290
1136 $map or return; 1291 $map or return;
1137 1292
1138 $map->{load_original} = 1; 1293 $map->{load_original} = 1;
1139 $map->{instantiate_time} = $cf::RUNTIME; 1294 $map->{instantiate_time} = $cf::RUNTIME;
1295 $map->last_access ($cf::RUNTIME);
1140 $map->instantiate; 1296 $map->instantiate;
1141 1297
1142 # per-player maps become, after loading, normal maps 1298 # per-player maps become, after loading, normal maps
1143 $map->per_player (0) if $path->{user_rel}; 1299 $map->per_player (0) if $path->{user_rel};
1144 } 1300 }
1145 1301
1146 $map->path ($key); 1302 $map->path ($key);
1147 $map->{path} = $path; 1303 $map->{path} = $path;
1148 $map->last_access ($cf::RUNTIME); 1304 $map->{last_save} = $cf::RUNTIME;
1305
1306 Coro::cede;
1149 1307
1150 if ($map->should_reset) { 1308 if ($map->should_reset) {
1151 $map->reset; 1309 $map->reset;
1310 undef $guard;
1152 $map = find_map $path; 1311 $map = find $path
1312 or return;
1153 } 1313 }
1154 1314
1155 $cf::MAP{$key} = $map 1315 $cf::MAP{$key} = $map
1156 } 1316 }
1157} 1317}
1158 1318
1159sub load { 1319sub load {
1160 my ($self) = @_; 1320 my ($self) = @_;
1161 1321
1322 my $path = $self->{path};
1323 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1324
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1325 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1326
1164 $self->in_memory (cf::MAP_LOADING); 1327 $self->in_memory (cf::MAP_LOADING);
1165
1166 my $path = $self->{path};
1167 1328
1168 $self->alloc; 1329 $self->alloc;
1169 $self->load_objects ($self->{load_path}, 1) 1330 $self->load_objects ($self->{load_path}, 1)
1170 or return; 1331 or return;
1171 1332
1177 if (aio_open $uniq, O_RDONLY, 0) { 1338 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items; 1339 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0); 1340 $self->load_objects ($uniq, 0);
1180 } 1341 }
1181 } 1342 }
1343
1344 Coro::cede;
1182 1345
1183 # now do the right thing for maps 1346 # now do the right thing for maps
1184 $self->link_multipart_objects; 1347 $self->link_multipart_objects;
1185 1348
1186 if ($self->{path}->is_style_map) { 1349 if ($self->{path}->is_style_map) {
1194 $self->difficulty ($self->estimate_difficulty) 1357 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty; 1358 unless $self->difficulty;
1196 $self->activate; 1359 $self->activate;
1197 } 1360 }
1198 1361
1362 Coro::cede;
1363
1199 $self->in_memory (cf::MAP_IN_MEMORY); 1364 $self->in_memory (cf::MAP_IN_MEMORY);
1200} 1365}
1201 1366
1202sub load_map_sync { 1367sub find_sync {
1203 my ($path, $origin) = @_; 1368 my ($path, $origin) = @_;
1204 1369
1205 #warn "load_map_sync<$path, $origin>\n";#d# 1370 cf::sync_job { cf::map::find $path, $origin }
1371}
1206 1372
1207 cf::sync_job { 1373sub do_load_sync {
1208 my $map = cf::map::find_map $path, $origin 1374 my ($map) = @_;
1209 or return; 1375
1210 $map->load; 1376 cf::sync_job { $map->load };
1211 $map
1212 }
1213} 1377}
1214 1378
1215sub save { 1379sub save {
1216 my ($self) = @_; 1380 my ($self) = @_;
1217 1381
1382 my $lock = cf::lock_acquire "map_data:" . $self->path;
1383
1384 $self->{last_save} = $cf::RUNTIME;
1385
1386 return unless $self->dirty;
1387
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1388 my $save = $self->{path}->save_path; utf8::encode $save;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1389 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220 1390
1221 $self->{last_save} = $cf::RUNTIME;
1222
1223 return unless $self->dirty;
1224
1225 $self->{load_path} = $save; 1391 $self->{load_path} = $save;
1226 1392
1227 return if $self->{deny_save}; 1393 return if $self->{deny_save};
1394
1395 local $self->{last_access} = $self->last_access;#d#
1396
1397 cf::async {
1398 $_->contr->save for $self->players;
1399 };
1228 1400
1229 if ($uniq) { 1401 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1402 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES); 1403 $self->save_objects ($uniq, cf::IO_UNIQUES);
1232 } else { 1404 } else {
1235} 1407}
1236 1408
1237sub swap_out { 1409sub swap_out {
1238 my ($self) = @_; 1410 my ($self) = @_;
1239 1411
1412 # save first because save cedes
1413 $self->save;
1414
1415 my $lock = cf::lock_acquire "map_data:" . $self->path;
1416
1240 return if $self->players; 1417 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY; 1418 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save}; 1419 return if $self->{deny_save};
1243 1420
1244 $self->save;
1245 $self->clear; 1421 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED); 1422 $self->in_memory (cf::MAP_SWAPPED);
1247} 1423}
1248 1424
1249sub reset_at { 1425sub reset_at {
1287} 1463}
1288 1464
1289sub reset { 1465sub reset {
1290 my ($self) = @_; 1466 my ($self) = @_;
1291 1467
1468 my $lock = cf::lock_acquire "map_data:" . $self->path;
1469
1292 return if $self->players; 1470 return if $self->players;
1293 return if $self->{path}{user_rel};#d# 1471 return if $self->{path}{user_rel};#d#
1294 1472
1295 warn "resetting map ", $self->path;#d# 1473 warn "resetting map ", $self->path;#d#
1296 1474
1315 1493
1316sub customise_for { 1494sub customise_for {
1317 my ($map, $ob) = @_; 1495 my ($map, $ob) = @_;
1318 1496
1319 if ($map->per_player) { 1497 if ($map->per_player) {
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1498 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1321 } 1499 }
1322 1500
1323 $map 1501 $map
1324} 1502}
1325 1503
1326sub emergency_save { 1504sub emergency_save {
1327 local $cf::FREEZE = 1; 1505 my $freeze_guard = cf::freeze_mainloop;
1328 1506
1329 warn "enter emergency map save\n"; 1507 warn "enter emergency perl save\n";
1330 1508
1331 cf::sync_job { 1509 cf::sync_job {
1510 warn "begin emergency player save\n";
1511 $_->save for values %cf::PLAYER;
1512 warn "end emergency player save\n";
1513
1332 warn "begin emergency map save\n"; 1514 warn "begin emergency map save\n";
1333 $_->save for values %cf::MAP; 1515 $_->save for values %cf::MAP;
1516 warn "end emergency map save\n";
1334 }; 1517 };
1335 1518
1336 warn "end emergency map save\n"; 1519 warn "leave emergency perl save\n";
1337} 1520}
1338 1521
1339package cf; 1522package cf;
1340 1523
1341=back 1524=back
1383 (ref $cf::CFG{"may_$access"} 1566 (ref $cf::CFG{"may_$access"}
1384 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1567 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385 : $cf::CFG{"may_$access"}) 1568 : $cf::CFG{"may_$access"})
1386} 1569}
1387 1570
1571=item $player_object->enter_link
1572
1573Freezes the player and moves him/her to a special map (C<{link}>).
1574
1575The player should be reaosnably safe there for short amounts of time. You
1576I<MUST> call C<leave_link> as soon as possible, though.
1577
1578=item $player_object->leave_link ($map, $x, $y)
1579
1580Moves the player out of the specila link map onto the given map. If the
1581map is not valid (or omitted), the player will be moved back to the
1582location he/she was before the call to C<enter_link>, or, if that fails,
1583to the emergency map position.
1584
1585Might block.
1586
1587=cut
1588
1388sub cf::object::player::enter_link { 1589sub cf::object::player::enter_link {
1389 my ($self) = @_; 1590 my ($self) = @_;
1390 1591
1592 $self->deactivate_recursive;
1593
1391 return if $self->map == $LINK_MAP; 1594 return if $self->map == $LINK_MAP;
1392 1595
1393 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1596 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1394 if $self->map; 1597 if $self->map;
1395 1598
1396 $self->enter_map ($LINK_MAP, 20, 20); 1599 $self->enter_map ($LINK_MAP, 20, 20);
1397 $self->deactivate_recursive;
1398} 1600}
1399 1601
1400sub cf::object::player::leave_link { 1602sub cf::object::player::leave_link {
1401 my ($self, $map, $x, $y) = @_; 1603 my ($self, $map, $x, $y) = @_;
1402 1604
1403 my $link_pos = delete $self->{_link_pos}; 1605 my $link_pos = delete $self->{_link_pos};
1404 1606
1405 unless ($map) { 1607 unless ($map) {
1406 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408 # restore original map position 1608 # restore original map position
1409 ($map, $x, $y) = @{ $link_pos || [] }; 1609 ($map, $x, $y) = @{ $link_pos || [] };
1410 $map = cf::map::find_map $map; 1610 $map = cf::map::find $map;
1411 1611
1412 unless ($map) { 1612 unless ($map) {
1413 ($map, $x, $y) = @$EMERGENCY_POSITION; 1613 ($map, $x, $y) = @$EMERGENCY_POSITION;
1414 $map = cf::map::find_map $map 1614 $map = cf::map::find $map
1415 or die "FATAL: cannot load emergency map\n"; 1615 or die "FATAL: cannot load emergency map\n";
1416 } 1616 }
1417 } 1617 }
1418 1618
1419 ($x, $y) = (-1, -1) 1619 ($x, $y) = (-1, -1)
1423 ($x, $y) = ($map->enter_x, $map->enter_y) 1623 ($x, $y) = ($map->enter_x, $map->enter_y)
1424 if $x <=0 && $y <= 0; 1624 if $x <=0 && $y <= 0;
1425 1625
1426 $map->load; 1626 $map->load;
1427 1627
1628 return unless $self->contr->active;
1428 $self->activate_recursive; 1629 $self->activate_recursive;
1429 $self->enter_map ($map, $x, $y); 1630 $self->enter_map ($map, $x, $y);
1430} 1631}
1431 1632
1633cf::player->attach (
1634 on_logout => sub {
1635 my ($pl) = @_;
1636
1637 # abort map switching before logout
1638 if ($pl->ob->{_link_pos}) {
1639 cf::sync_job {
1640 $pl->ob->leave_link
1641 };
1642 }
1643 },
1644 on_login => sub {
1645 my ($pl) = @_;
1646
1647 # try to abort aborted map switching on player login :)
1648 # should happen only on crashes
1649 if ($pl->ob->{_link_pos}) {
1650 $pl->ob->enter_link;
1651 (async {
1652 # we need this sleep as the login has a concurrent enter_exit running
1653 # and this sleep increases chances of the player not ending up in scorn
1654 $pl->ob->reply (undef,
1655 "There was an internal problem at your last logout, "
1656 . "the server will try to bring you to your intended destination in a second.",
1657 cf::NDI_RED);
1658 Coro::Timer::sleep 1;
1659 $pl->ob->leave_link;
1660 })->prio (2);
1661 }
1662 },
1663);
1664
1432=item $player_object->goto_map ($map, $x, $y) 1665=item $player_object->goto ($path, $x, $y)
1433 1666
1434=cut 1667=cut
1435 1668
1436sub cf::object::player::goto_map { 1669sub cf::object::player::goto {
1437 my ($self, $path, $x, $y) = @_; 1670 my ($self, $path, $x, $y) = @_;
1438 1671
1439 $self->enter_link; 1672 $self->enter_link;
1440 1673
1441 (Coro::async { 1674 (async {
1442 $path = new cf::path $path; 1675 $path = new cf::path $path;
1443 1676
1444 my $map = cf::map::find_map $path->as_string; 1677 my $map = cf::map::find $path->as_string;
1445 $map = $map->customise_for ($self) if $map; 1678 $map = $map->customise_for ($self) if $map;
1446 1679
1447 warn "entering ", $map->path, " at ($x, $y)\n" 1680# warn "entering ", $map->path, " at ($x, $y)\n"
1448 if $map; 1681# if $map;
1682
1683 $map or $map->cluck ("oy");#d#
1684 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1449 1685
1450 $self->leave_link ($map, $x, $y); 1686 $self->leave_link ($map, $x, $y);
1451 })->prio (1); 1687 })->prio (1);
1452} 1688}
1453 1689
1506 1742
1507 return unless $self->type == cf::PLAYER; 1743 return unless $self->type == cf::PLAYER;
1508 1744
1509 $self->enter_link; 1745 $self->enter_link;
1510 1746
1511 (Coro::async { 1747 (async {
1748 $self->deactivate_recursive; # just to be sure
1512 unless (eval { 1749 unless (eval {
1513
1514 prepare_random_map $exit 1750 prepare_random_map $exit
1515 if $exit->slaying eq "/!"; 1751 if $exit->slaying eq "/!";
1516 1752
1517 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1753 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1518 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1754 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1519 1755
1520 1; 1756 1;
1521 }) { 1757 }) {
1522 $self->message ("Something went wrong deep within the crossfire server. " 1758 $self->message ("Something went wrong deep within the crossfire server. "
1523 . "I'll try to bring you back to the map you were before. " 1759 . "I'll try to bring you back to the map you were before. "
1580 on_reply => sub { 1816 on_reply => sub {
1581 my ($ns, $msg) = @_; 1817 my ($ns, $msg) = @_;
1582 1818
1583 # this weird shuffling is so that direct followup queries 1819 # this weird shuffling is so that direct followup queries
1584 # get handled first 1820 # get handled first
1585 my $queue = delete $ns->{query_queue}; 1821 my $queue = delete $ns->{query_queue}
1822 or return; # be conservative, not sure how that can happen, but we saw a crash here
1586 1823
1587 (shift @$queue)->[1]->($msg); 1824 (shift @$queue)->[1]->($msg);
1588 1825
1589 push @{ $ns->{query_queue} }, @$queue; 1826 push @{ $ns->{query_queue} }, @$queue;
1590 1827
1596 } 1833 }
1597 } 1834 }
1598 }, 1835 },
1599); 1836);
1600 1837
1601=item $client->coro (\&cb) 1838=item $client->async (\&cb)
1602 1839
1603Create a new coroutine, running the specified callback. The coroutine will 1840Create a new coroutine, running the specified callback. The coroutine will
1604be automatically cancelled when the client gets destroyed (e.g. on logout, 1841be automatically cancelled when the client gets destroyed (e.g. on logout,
1605or loss of connection). 1842or loss of connection).
1606 1843
1607=cut 1844=cut
1608 1845
1609sub cf::client::coro { 1846sub cf::client::async {
1610 my ($self, $cb) = @_; 1847 my ($self, $cb) = @_;
1611 1848
1612 my $coro; $coro = async { 1849 my $coro = &Coro::async ($cb);
1613 eval {
1614 $cb->();
1615 };
1616 warn $@ if $@;
1617 };
1618 1850
1619 $coro->on_destroy (sub { 1851 $coro->on_destroy (sub {
1620 delete $self->{_coro}{$coro+0}; 1852 delete $self->{_coro}{$coro+0};
1621 }); 1853 });
1622 1854
1794 2026
1795{ 2027{
1796 my $path = cf::localdir . "/database.pst"; 2028 my $path = cf::localdir . "/database.pst";
1797 2029
1798 sub db_load() { 2030 sub db_load() {
1799 warn "loading database $path\n";#d# remove later
1800 $DB = stat $path ? Storable::retrieve $path : { }; 2031 $DB = stat $path ? Storable::retrieve $path : { };
1801 } 2032 }
1802 2033
1803 my $pid; 2034 my $pid;
1804 2035
1805 sub db_save() { 2036 sub db_save() {
1806 warn "saving database $path\n";#d# remove later
1807 waitpid $pid, 0 if $pid; 2037 waitpid $pid, 0 if $pid;
1808 if (0 == ($pid = fork)) { 2038 if (0 == ($pid = fork)) {
1809 $DB->{_meta}{version} = 1; 2039 $DB->{_meta}{version} = 1;
1810 Storable::nstore $DB, "$path~"; 2040 Storable::nstore $DB, "$path~";
1811 rename "$path~", $path; 2041 rename "$path~", $path;
1859 open my $fh, "<:utf8", cf::confdir . "/config" 2089 open my $fh, "<:utf8", cf::confdir . "/config"
1860 or return; 2090 or return;
1861 2091
1862 local $/; 2092 local $/;
1863 *CFG = YAML::Syck::Load <$fh>; 2093 *CFG = YAML::Syck::Load <$fh>;
2094
2095 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2096
2097 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2098 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2099
2100 if (exists $CFG{mlockall}) {
2101 eval {
2102 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2103 and die "WARNING: m(un)lockall failed: $!\n";
2104 };
2105 warn $@ if $@;
2106 }
1864} 2107}
1865 2108
1866sub main { 2109sub main {
1867 # we must not ever block the main coroutine 2110 # we must not ever block the main coroutine
1868 local $Coro::idle = sub { 2111 local $Coro::idle = sub {
1869 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2112 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870 (Coro::unblock_sub {
1871 Event::one_event; 2113 async { Event::one_event };
1872 })->();
1873 }; 2114 };
1874 2115
1875 cfg_load; 2116 cfg_load;
1876 db_load; 2117 db_load;
1877 load_extensions; 2118 load_extensions;
1888 return; 2129 return;
1889 } 2130 }
1890 2131
1891 warn "reloading..."; 2132 warn "reloading...";
1892 2133
1893 local $FREEZE = 1; 2134 my $guard = freeze_mainloop;
1894 cf::emergency_save; 2135 cf::emergency_save;
1895 2136
1896 eval { 2137 eval {
1897 # if anything goes wrong in here, we should simply crash as we already saved 2138 # if anything goes wrong in here, we should simply crash as we already saved
1898 2139
1960 cf::load_extensions; 2201 cf::load_extensions;
1961 2202
1962 # reattach attachments to objects 2203 # reattach attachments to objects
1963 warn "reattach"; 2204 warn "reattach";
1964 _global_reattach; 2205 _global_reattach;
2206 reattach $_ for values %MAP;
1965 }; 2207 };
1966 2208
1967 if ($@) { 2209 if ($@) {
1968 warn $@; 2210 warn $@;
1969 warn "error while reloading, exiting."; 2211 warn "error while reloading, exiting.";
1985 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2227 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1986 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2228 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1987 2229
1988 # dirty hack because... archetypes are not yet loaded 2230 # dirty hack because... archetypes are not yet loaded
1989 Event->timer ( 2231 Event->timer (
1990 after => 2, 2232 after => 10,
1991 cb => sub { 2233 cb => sub {
1992 $_[0]->w->cancel; 2234 $_[0]->w->cancel;
1993 2235
1994 # provide some exits "home" 2236 # provide some exits "home"
1995 my $exit = cf::object::new "exit"; 2237 my $exit = cf::object::new "exit";
2034 reentrant => 0, 2276 reentrant => 0,
2035 prio => 0, 2277 prio => 0,
2036 at => $NEXT_TICK || $TICK, 2278 at => $NEXT_TICK || $TICK,
2037 data => WF_AUTOCANCEL, 2279 data => WF_AUTOCANCEL,
2038 cb => sub { 2280 cb => sub {
2039 unless ($FREEZE) {
2040 cf::server_tick; # one server iteration 2281 cf::server_tick; # one server iteration
2041 $RUNTIME += $TICK; 2282 $RUNTIME += $TICK;
2042 }
2043
2044 $NEXT_TICK += $TICK; 2283 $NEXT_TICK += $TICK;
2045 2284
2046 # if we are delayed by four ticks or more, skip them all 2285 # if we are delayed by four ticks or more, skip them all
2047 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2286 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2048 2287
2071 or warn "ERROR: unable to write runtime file: $!"; 2310 or warn "ERROR: unable to write runtime file: $!";
2072 })->(); 2311 })->();
2073 }, 2312 },
2074); 2313);
2075 2314
2315END { cf::emergency_save }
2316
20761 23171
2077 2318

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