ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/lib/cf.pm
(Generate patch)

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.147 by root, Mon Jan 8 12:23:33 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 Fcntl; 21use Fcntl;
21use IO::AIO 2.31 (); 22use IO::AIO 2.32 ();
22use YAML::Syck (); 23use YAML::Syck ();
23use Time::HiRes; 24use Time::HiRes;
24 25
25use Event; $Event::Eval = 1; # no idea why this is required, but it is 26use Event; $Event::Eval = 1; # no idea why this is required, but it is
26 27
27# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28$YAML::Syck::ImplicitUnicode = 1; 29$YAML::Syck::ImplicitUnicode = 1;
29 30
30$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
31 32
32sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33 34
34our %COMMAND = (); 35our %COMMAND = ();
35our %COMMAND_TIME = (); 36our %COMMAND_TIME = ();
46our %CFG; 47our %CFG;
47 48
48our $UPTIME; $UPTIME ||= time; 49our $UPTIME; $UPTIME ||= time;
49our $RUNTIME; 50our $RUNTIME;
50 51
52our %PLAYER; # all users
51our %MAP; # all maps 53our %MAP; # all maps
52our $LINK_MAP; # the special {link} map 54our $LINK_MAP; # the special {link} map
53our $FREEZE; 55our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; # coroutines bound to extensions
54 57
55binmode STDOUT; 58binmode STDOUT;
56binmode STDERR; 59binmode STDERR;
57 60
58# read virtual server time, if available 61# read virtual server time, if available
64 67
65mkdir cf::localdir; 68mkdir cf::localdir;
66mkdir cf::localdir . "/" . cf::playerdir; 69mkdir cf::localdir . "/" . cf::playerdir;
67mkdir cf::localdir . "/" . cf::tmpdir; 70mkdir cf::localdir . "/" . cf::tmpdir;
68mkdir cf::localdir . "/" . cf::uniquedir; 71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS;
69 73
70our %EXT_CORO; 74# a special map that is always available
75our $LINK_MAP;
76our $EMERGENCY_POSITION;
71 77
72############################################################################# 78#############################################################################
73 79
74=head2 GLOBAL VARIABLES 80=head2 GLOBAL VARIABLES
75 81
112 utf8::encode $msg; 118 utf8::encode $msg;
113 119
114 $msg .= "\n" 120 $msg .= "\n"
115 unless $msg =~ /\n$/; 121 unless $msg =~ /\n$/;
116 122
117 LOG llevError, "cfperl: $msg"; 123 LOG llevError, $msg;
118 }; 124 };
119} 125}
120 126
121@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 127@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 128@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
174sub to_json($) { 180sub to_json($) {
175 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 181 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176 JSON::Syck::Dump $_[0] 182 JSON::Syck::Dump $_[0]
177} 183}
178 184
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 $guard
233}
234
235=item cf::async { BLOCK }
236
237Currently the same as Coro::async_pool, meaning you cannot use
238C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
239thing you are allowed to do is call C<prio> on it.
240
241=cut
242
243BEGIN { *async = \&Coro::async_pool }
244
179=item cf::sync_job { BLOCK } 245=item cf::sync_job { BLOCK }
180 246
181The design of crossfire+ requires that the main coro ($Coro::main) is 247The design of crossfire+ requires that the main coro ($Coro::main) is
182always able to handle events or runnable, as crossfire+ is only partly 248always able to handle events or runnable, as crossfire+ is only partly
183reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 249reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
190=cut 256=cut
191 257
192sub sync_job(&) { 258sub sync_job(&) {
193 my ($job) = @_; 259 my ($job) = @_;
194 260
195 my $busy = 1;
196 my @res;
197
198 # TODO: use suspend/resume instead
199 local $FREEZE = 1;
200
201 my $coro = Coro::async {
202 @res = eval { $job->() };
203 warn $@ if $@;
204 undef $busy;
205 };
206
207 if ($Coro::current == $Coro::main) { 261 if ($Coro::current == $Coro::main) {
262 # this is the main coro, too bad, we have to block
263 # till the operation succeeds, freezing the server :/
264
265 # TODO: use suspend/resume instead
266 # (but this is cancel-safe)
267 my $freeze_guard = freeze_mainloop;
268
269 my $busy = 1;
270 my @res;
271
272 (async {
273 @res = eval { $job->() };
274 warn $@ if $@;
275 undef $busy;
208 $coro->prio (Coro::PRIO_MAX); 276 })->prio (Coro::PRIO_MAX);
277
209 while ($busy) { 278 while ($busy) {
210 Coro::cede_notself; 279 Coro::cede or Event::one_event;
211 Event::one_event unless Coro::nready;
212 } 280 }
281
282 wantarray ? @res : $res[0]
213 } else { 283 } else {
214 $coro->join; 284 # we are in another coroutine, how wonderful, everything just works
285
286 $job->()
215 } 287 }
216
217 wantarray ? @res : $res[0]
218} 288}
219 289
220=item $coro = cf::coro { BLOCK } 290=item $coro = cf::async_ext { BLOCK }
221 291
222Creates and returns a new coro. This coro is automcatially being canceled 292Like async, but this coro is automcatially being canceled when the
223when the extension calling this is being unloaded. 293extension calling this is being unloaded.
224 294
225=cut 295=cut
226 296
227sub coro(&) { 297sub async_ext(&) {
228 my $cb = shift; 298 my $cb = shift;
229 299
230 my $coro; $coro = async { 300 my $coro = &Coro::async ($cb);
231 eval {
232 $cb->();
233 };
234 warn $@ if $@;
235 };
236 301
237 $coro->on_destroy (sub { 302 $coro->on_destroy (sub {
238 delete $EXT_CORO{$coro+0}; 303 delete $EXT_CORO{$coro+0};
239 }); 304 });
240 $EXT_CORO{$coro+0} = $coro; 305 $EXT_CORO{$coro+0} = $coro;
241 306
242 $coro 307 $coro
243} 308}
244 309
310sub write_runtime {
311 my $runtime = cf::localdir . "/runtime";
312
313 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
314 or return;
315
316 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
317 (aio_write $fh, 0, (length $value), $value, 0) <= 0
318 and return;
319
320 aio_fsync $fh
321 and return;
322
323 close $fh
324 or return;
325
326 aio_rename "$runtime~", $runtime
327 and return;
328
329 1
330}
331
245=back 332=back
246 333
247=cut 334=cut
335
336#############################################################################
337
338package cf::path;
339
340sub new {
341 my ($class, $path, $base) = @_;
342
343 $path = $path->as_string if ref $path;
344
345 my $self = bless { }, $class;
346
347 # {... are special paths that are not touched
348 # ?xxx/... are special absolute paths
349 # ?random/... random maps
350 # /! non-realised random map exit
351 # /... normal maps
352 # ~/... per-player maps without a specific player (DO NOT USE)
353 # ~user/... per-player map of a specific user
354
355 if ($path =~ /^{/) {
356 # fine as it is
357 } elsif ($path =~ s{^\?random/}{}) {
358 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359 $self->{random} = cf::from_json $data;
360 } else {
361 if ($path =~ s{^~([^/]+)?}{}) {
362 $self->{user_rel} = 1;
363
364 if (defined $1) {
365 $self->{user} = $1;
366 } elsif ($base =~ m{^~([^/]+)/}) {
367 $self->{user} = $1;
368 } else {
369 warn "cannot resolve user-relative path without user <$path,$base>\n";
370 }
371 } elsif ($path =~ /^\//) {
372 # already absolute
373 } else {
374 $base =~ s{[^/]+/?$}{};
375 return $class->new ("$base/$path");
376 }
377
378 for ($path) {
379 redo if s{/\.?/}{/};
380 redo if s{/[^/]+/\.\./}{/};
381 }
382 }
383
384 $self->{path} = $path;
385
386 $self
387}
388
389# the name / primary key / in-game path
390sub as_string {
391 my ($self) = @_;
392
393 $self->{user_rel} ? "~$self->{user}$self->{path}"
394 : $self->{random} ? "?random/$self->{path}"
395 : $self->{path}
396}
397
398# the displayed name, this is a one way mapping
399sub visible_name {
400 my ($self) = @_;
401
402# if (my $rmp = $self->{random}) {
403# # todo: be more intelligent about this
404# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405# } else {
406 $self->as_string
407# }
408}
409
410# escape the /'s in the path
411sub _escaped_path {
412 # ∕ is U+2215
413 (my $path = $_[0]{path}) =~ s/\//∕/g;
414 $path
415}
416
417# the original (read-only) location
418sub load_path {
419 my ($self) = @_;
420
421 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422}
423
424# the temporary/swap location
425sub save_path {
426 my ($self) = @_;
427
428 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431}
432
433# the unique path, might be eq to save_path
434sub uniq_path {
435 my ($self) = @_;
436
437 $self->{user_rel} || $self->{random}
438 ? undef
439 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440}
441
442# return random map parameters, or undef
443sub random_map_params {
444 my ($self) = @_;
445
446 $self->{random}
447}
448
449# this is somewhat ugly, but style maps do need special treatment
450sub is_style_map {
451 $_[0]{path} =~ m{^/styles/}
452}
453
454package cf;
248 455
249############################################################################# 456#############################################################################
250 457
251=head2 ATTACHABLE OBJECTS 458=head2 ATTACHABLE OBJECTS
252 459
660 or return; 867 or return;
661 868
662 unless (aio_stat "$filename.pst") { 869 unless (aio_stat "$filename.pst") {
663 (aio_load "$filename.pst", $av) >= 0 870 (aio_load "$filename.pst", $av) >= 0
664 or return; 871 or return;
665 $av = eval { (Storable::thaw <$av>)->{objs} }; 872 $av = eval { (Storable::thaw $av)->{objs} };
666 } 873 }
667 874
875 warn sprintf "loading %s (%d)\n",
876 $filename, length $data, scalar @{$av || []};#d#
668 return ($data, $av); 877 return ($data, $av);
669} 878}
670 879
671############################################################################# 880#############################################################################
672# command handling &c 881# command handling &c
863 1072
864=head2 CORE EXTENSIONS 1073=head2 CORE EXTENSIONS
865 1074
866Functions and methods that extend core crossfire objects. 1075Functions and methods that extend core crossfire objects.
867 1076
1077=cut
1078
1079package cf::player;
1080
868=head3 cf::player 1081=head3 cf::player
869 1082
870=over 4 1083=over 4
871 1084
872=item cf::player::exists $login 1085=item cf::player::find $login
873 1086
874Returns true when the given account exists. 1087Returns the given player object, loading it if necessary (might block).
875 1088
876=cut 1089=cut
877 1090
878sub cf::player::exists($) { 1091sub playerdir($) {
879 cf::player::find $_[0] 1092 cf::localdir
880 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[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 IO::AIO::aio_mkdir playerdir $pl, 0770;
1139 $pl->{last_save} = $cf::RUNTIME;
1140
1141 Coro::cede;
1142 $pl->save_pl ($path);
1143 Coro::cede;
1144}
1145
1146sub new($) {
1147 my ($login) = @_;
1148
1149 my $self = create;
1150
1151 $self->ob->name ($login);
1152 $self->{deny_save} = 1;
1153
1154 $cf::PLAYER{$login} = $self;
1155
1156 $self
1157}
1158
1159sub quit_character {
1160 my ($pl) = @_;
1161
1162 $pl->{deny_save} = 1;
1163 $pl->password ("*"); # this should lock out the player until we nuked the dir
1164
1165 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1166 $pl->deactivate;
1167 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1168 $pl->ns->destroy if $pl->ns;
1169
1170 my $path = playerdir $pl;
1171 my $temp = "$path~$cf::RUNTIME~deleting~";
1172 IO::AIO::aio_rename $path, $temp, sub {
1173 delete $cf::PLAYER{$pl->ob->name};
1174 $pl->destroy;
1175
1176 IO::AIO::aio_rmtree $temp;
1177 };
881} 1178}
882 1179
883=item $player->ext_reply ($msgid, $msgtype, %msg) 1180=item $player->ext_reply ($msgid, $msgtype, %msg)
884 1181
885Sends an ext reply to the player. 1182Sends an ext reply to the player.
886 1183
887=cut 1184=cut
888 1185
889sub cf::player::ext_reply($$$%) { 1186sub ext_reply($$$%) {
890 my ($self, $id, %msg) = @_; 1187 my ($self, $id, %msg) = @_;
891 1188
892 $msg{msgid} = $id; 1189 $msg{msgid} = $id;
893 1190
894 $self->send ("ext " . to_json \%msg); 1191 $self->send ("ext " . cf::to_json \%msg);
895} 1192}
1193
1194package cf;
896 1195
897=back 1196=back
1197
1198
1199=head3 cf::map
1200
1201=over 4
1202
1203=cut
1204
1205package cf::map;
1206
1207use Fcntl;
1208use Coro::AIO;
1209
1210our $MAX_RESET = 3600;
1211our $DEFAULT_RESET = 3000;
1212
1213sub generate_random_map {
1214 my ($path, $rmp) = @_;
1215
1216 # mit "rum" bekleckern, nicht
1217 cf::map::_create_random_map
1218 $path,
1219 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1220 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1221 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1222 $rmp->{exit_on_final_map},
1223 $rmp->{xsize}, $rmp->{ysize},
1224 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1225 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1226 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1227 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1228 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1229 (cf::region::find $rmp->{region})
1230}
1231
1232# and all this just because we cannot iterate over
1233# all maps in C++...
1234sub change_all_map_light {
1235 my ($change) = @_;
1236
1237 $_->change_map_light ($change)
1238 for grep $_->outdoor, values %cf::MAP;
1239}
1240
1241sub try_load_header($) {
1242 my ($path) = @_;
1243
1244 utf8::encode $path;
1245 aio_open $path, O_RDONLY, 0
1246 or return;
1247
1248 my $map = cf::map::new
1249 or return;
1250
1251 # for better error messages only, will be overwritten
1252 $map->path ($path);
1253
1254 $map->load_header ($path)
1255 or return;
1256
1257 $map->{load_path} = $path;
1258
1259 $map
1260}
1261
1262sub find;
1263sub find {
1264 my ($path, $origin) = @_;
1265
1266 #warn "find<$path,$origin>\n";#d#
1267
1268 $path = new cf::path $path, $origin && $origin->path;
1269 my $key = $path->as_string;
1270
1271 cf::lock_wait "map_find:$key";
1272
1273 $cf::MAP{$key} || do {
1274 my $guard = cf::lock_acquire "map_find:$key";
1275
1276 # do it the slow way
1277 my $map = try_load_header $path->save_path;
1278
1279 Coro::cede;
1280
1281 if ($map) {
1282 $map->last_access ((delete $map->{last_access})
1283 || $cf::RUNTIME); #d#
1284 # safety
1285 $map->{instantiate_time} = $cf::RUNTIME
1286 if $map->{instantiate_time} > $cf::RUNTIME;
1287 } else {
1288 if (my $rmp = $path->random_map_params) {
1289 $map = generate_random_map $key, $rmp;
1290 } else {
1291 $map = try_load_header $path->load_path;
1292 }
1293
1294 $map or return;
1295
1296 $map->{load_original} = 1;
1297 $map->{instantiate_time} = $cf::RUNTIME;
1298 $map->last_access ($cf::RUNTIME);
1299 $map->instantiate;
1300
1301 # per-player maps become, after loading, normal maps
1302 $map->per_player (0) if $path->{user_rel};
1303 }
1304
1305 $map->path ($key);
1306 $map->{path} = $path;
1307 $map->{last_save} = $cf::RUNTIME;
1308
1309 Coro::cede;
1310
1311 if ($map->should_reset) {
1312 $map->reset;
1313 undef $guard;
1314 $map = find $path
1315 or return;
1316 }
1317
1318 $cf::MAP{$key} = $map
1319 }
1320}
1321
1322sub load {
1323 my ($self) = @_;
1324
1325 my $path = $self->{path};
1326 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1327
1328 return if $self->in_memory != cf::MAP_SWAPPED;
1329
1330 $self->in_memory (cf::MAP_LOADING);
1331
1332 $self->alloc;
1333 $self->load_objects ($self->{load_path}, 1)
1334 or return;
1335
1336 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1337 if delete $self->{load_original};
1338
1339 if (my $uniq = $path->uniq_path) {
1340 utf8::encode $uniq;
1341 if (aio_open $uniq, O_RDONLY, 0) {
1342 $self->clear_unique_items;
1343 $self->load_objects ($uniq, 0);
1344 }
1345 }
1346
1347 Coro::cede;
1348
1349 # now do the right thing for maps
1350 $self->link_multipart_objects;
1351
1352 if ($self->{path}->is_style_map) {
1353 $self->{deny_save} = 1;
1354 $self->{deny_reset} = 1;
1355 } else {
1356 $self->fix_auto_apply;
1357 $self->decay_objects;
1358 $self->update_buttons;
1359 $self->set_darkness_map;
1360 $self->difficulty ($self->estimate_difficulty)
1361 unless $self->difficulty;
1362 $self->activate;
1363 }
1364
1365 Coro::cede;
1366
1367 $self->in_memory (cf::MAP_IN_MEMORY);
1368}
1369
1370sub find_sync {
1371 my ($path, $origin) = @_;
1372
1373 cf::sync_job { cf::map::find $path, $origin }
1374}
1375
1376sub do_load_sync {
1377 my ($map) = @_;
1378
1379 cf::sync_job { $map->load };
1380}
1381
1382sub save {
1383 my ($self) = @_;
1384
1385 my $lock = cf::lock_acquire "map_data:" . $self->path;
1386
1387 $self->{last_save} = $cf::RUNTIME;
1388
1389 return unless $self->dirty;
1390
1391 my $save = $self->{path}->save_path; utf8::encode $save;
1392 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1393
1394 $self->{load_path} = $save;
1395
1396 return if $self->{deny_save};
1397
1398 local $self->{last_access} = $self->last_access;#d#
1399
1400 cf::async {
1401 $_->contr->save for $self->players;
1402 };
1403
1404 if ($uniq) {
1405 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1406 $self->save_objects ($uniq, cf::IO_UNIQUES);
1407 } else {
1408 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1409 }
1410}
1411
1412sub swap_out {
1413 my ($self) = @_;
1414
1415 # save first because save cedes
1416 $self->save;
1417
1418 my $lock = cf::lock_acquire "map_data:" . $self->path;
1419
1420 return if $self->players;
1421 return if $self->in_memory != cf::MAP_IN_MEMORY;
1422 return if $self->{deny_save};
1423
1424 $self->clear;
1425 $self->in_memory (cf::MAP_SWAPPED);
1426}
1427
1428sub reset_at {
1429 my ($self) = @_;
1430
1431 # TODO: safety, remove and allow resettable per-player maps
1432 return 1e99 if $self->{path}{user_rel};
1433 return 1e99 if $self->{deny_reset};
1434
1435 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1436 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1437
1438 $time + $to
1439}
1440
1441sub should_reset {
1442 my ($self) = @_;
1443
1444 $self->reset_at <= $cf::RUNTIME
1445}
1446
1447sub unlink_save {
1448 my ($self) = @_;
1449
1450 utf8::encode (my $save = $self->{path}->save_path);
1451 aioreq_pri 3; IO::AIO::aio_unlink $save;
1452 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1453}
1454
1455sub rename {
1456 my ($self, $new_path) = @_;
1457
1458 $self->unlink_save;
1459
1460 delete $cf::MAP{$self->path};
1461 $self->{path} = new cf::path $new_path;
1462 $self->path ($self->{path}->as_string);
1463 $cf::MAP{$self->path} = $self;
1464
1465 $self->save;
1466}
1467
1468sub reset {
1469 my ($self) = @_;
1470
1471 my $lock = cf::lock_acquire "map_data:" . $self->path;
1472
1473 return if $self->players;
1474 return if $self->{path}{user_rel};#d#
1475
1476 warn "resetting map ", $self->path;#d#
1477
1478 delete $cf::MAP{$self->path};
1479
1480 $_->clear_links_to ($self) for values %cf::MAP;
1481
1482 $self->unlink_save;
1483 $self->destroy;
1484}
1485
1486my $nuke_counter = "aaaa";
1487
1488sub nuke {
1489 my ($self) = @_;
1490
1491 $self->{deny_save} = 1;
1492 $self->reset_timeout (1);
1493 $self->rename ("{nuke}/" . ($nuke_counter++));
1494 $self->reset; # polite request, might not happen
1495}
1496
1497sub customise_for {
1498 my ($map, $ob) = @_;
1499
1500 if ($map->per_player) {
1501 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1502 }
1503
1504 $map
1505}
1506
1507sub emergency_save {
1508 my $freeze_guard = cf::freeze_mainloop;
1509
1510 warn "enter emergency perl save\n";
1511
1512 cf::sync_job {
1513 warn "begin emergency player save\n";
1514 $_->save for values %cf::PLAYER;
1515 warn "end emergency player save\n";
1516
1517 warn "begin emergency map save\n";
1518 $_->save for values %cf::MAP;
1519 warn "end emergency map save\n";
1520 };
1521
1522 warn "leave emergency perl save\n";
1523}
1524
1525package cf;
1526
1527=back
1528
898 1529
899=head3 cf::object::player 1530=head3 cf::object::player
900 1531
901=over 4 1532=over 4
902 1533
938 (ref $cf::CFG{"may_$access"} 1569 (ref $cf::CFG{"may_$access"}
939 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1570 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940 : $cf::CFG{"may_$access"}) 1571 : $cf::CFG{"may_$access"})
941} 1572}
942 1573
1574=item $player_object->enter_link
1575
1576Freezes the player and moves him/her to a special map (C<{link}>).
1577
1578The player should be reaosnably safe there for short amounts of time. You
1579I<MUST> call C<leave_link> as soon as possible, though.
1580
1581=item $player_object->leave_link ($map, $x, $y)
1582
1583Moves the player out of the specila link map onto the given map. If the
1584map is not valid (or omitted), the player will be moved back to the
1585location he/she was before the call to C<enter_link>, or, if that fails,
1586to the emergency map position.
1587
1588Might block.
1589
1590=cut
1591
1592sub cf::object::player::enter_link {
1593 my ($self) = @_;
1594
1595 $self->deactivate_recursive;
1596
1597 return if $self->map == $LINK_MAP;
1598
1599 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1600 if $self->map;
1601
1602 $self->enter_map ($LINK_MAP, 20, 20);
1603}
1604
1605sub cf::object::player::leave_link {
1606 my ($self, $map, $x, $y) = @_;
1607
1608 my $link_pos = delete $self->{_link_pos};
1609
1610 unless ($map) {
1611 # restore original map position
1612 ($map, $x, $y) = @{ $link_pos || [] };
1613 $map = cf::map::find $map;
1614
1615 unless ($map) {
1616 ($map, $x, $y) = @$EMERGENCY_POSITION;
1617 $map = cf::map::find $map
1618 or die "FATAL: cannot load emergency map\n";
1619 }
1620 }
1621
1622 ($x, $y) = (-1, -1)
1623 unless (defined $x) && (defined $y);
1624
1625 # use -1 or undef as default coordinates, not 0, 0
1626 ($x, $y) = ($map->enter_x, $map->enter_y)
1627 if $x <=0 && $y <= 0;
1628
1629 $map->load;
1630
1631 return unless $self->contr->active;
1632 $self->activate_recursive;
1633 $self->enter_map ($map, $x, $y);
1634}
1635
1636cf::player->attach (
1637 on_logout => sub {
1638 my ($pl) = @_;
1639
1640 # abort map switching before logout
1641 if ($pl->ob->{_link_pos}) {
1642 cf::sync_job {
1643 $pl->ob->leave_link
1644 };
1645 }
1646 },
1647 on_login => sub {
1648 my ($pl) = @_;
1649
1650 # try to abort aborted map switching on player login :)
1651 # should happen only on crashes
1652 if ($pl->ob->{_link_pos}) {
1653 $pl->ob->enter_link;
1654 (async {
1655 # we need this sleep as the login has a concurrent enter_exit running
1656 # and this sleep increases chances of the player not ending up in scorn
1657 $pl->ob->reply (undef,
1658 "There was an internal problem at your last logout, "
1659 . "the server will try to bring you to your intended destination in a second.",
1660 cf::NDI_RED);
1661 Coro::Timer::sleep 1;
1662 $pl->ob->leave_link;
1663 })->prio (2);
1664 }
1665 },
1666);
1667
1668=item $player_object->goto ($path, $x, $y)
1669
1670=cut
1671
1672sub cf::object::player::goto {
1673 my ($self, $path, $x, $y) = @_;
1674
1675 $self->enter_link;
1676
1677 (async {
1678 $path = new cf::path $path;
1679
1680 my $map = cf::map::find $path->as_string;
1681 $map = $map->customise_for ($self) if $map;
1682
1683# warn "entering ", $map->path, " at ($x, $y)\n"
1684# if $map;
1685
1686 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1687
1688 $self->leave_link ($map, $x, $y);
1689 })->prio (1);
1690}
1691
1692=item $player_object->enter_exit ($exit_object)
1693
1694=cut
1695
1696sub parse_random_map_params {
1697 my ($spec) = @_;
1698
1699 my $rmp = { # defaults
1700 xsize => 10,
1701 ysize => 10,
1702 };
1703
1704 for (split /\n/, $spec) {
1705 my ($k, $v) = split /\s+/, $_, 2;
1706
1707 $rmp->{lc $k} = $v if (length $k) && (length $v);
1708 }
1709
1710 $rmp
1711}
1712
1713sub prepare_random_map {
1714 my ($exit) = @_;
1715
1716 # all this does is basically replace the /! path by
1717 # a new random map path (?random/...) with a seed
1718 # that depends on the exit object
1719
1720 my $rmp = parse_random_map_params $exit->msg;
1721
1722 if ($exit->map) {
1723 $rmp->{region} = $exit->map->region_name;
1724 $rmp->{origin_map} = $exit->map->path;
1725 $rmp->{origin_x} = $exit->x;
1726 $rmp->{origin_y} = $exit->y;
1727 }
1728
1729 $rmp->{random_seed} ||= $exit->random_seed;
1730
1731 my $data = cf::to_json $rmp;
1732 my $md5 = Digest::MD5::md5_hex $data;
1733
1734 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1735 aio_write $fh, 0, (length $data), $data, 0;
1736
1737 $exit->slaying ("?random/$md5");
1738 $exit->msg (undef);
1739 }
1740}
1741
1742sub cf::object::player::enter_exit {
1743 my ($self, $exit) = @_;
1744
1745 return unless $self->type == cf::PLAYER;
1746
1747 $self->enter_link;
1748
1749 (async {
1750 $self->deactivate_recursive; # just to be sure
1751 unless (eval {
1752 prepare_random_map $exit
1753 if $exit->slaying eq "/!";
1754
1755 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1756 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1757
1758 1;
1759 }) {
1760 $self->message ("Something went wrong deep within the crossfire server. "
1761 . "I'll try to bring you back to the map you were before. "
1762 . "Please report this to the dungeon master",
1763 cf::NDI_UNIQUE | cf::NDI_RED);
1764
1765 warn "ERROR in enter_exit: $@";
1766 $self->leave_link;
1767 }
1768 })->prio (1);
1769}
1770
943=head3 cf::client 1771=head3 cf::client
944 1772
945=over 4 1773=over 4
946 1774
947=item $client->send_drawinfo ($text, $flags) 1775=item $client->send_drawinfo ($text, $flags)
990 on_reply => sub { 1818 on_reply => sub {
991 my ($ns, $msg) = @_; 1819 my ($ns, $msg) = @_;
992 1820
993 # this weird shuffling is so that direct followup queries 1821 # this weird shuffling is so that direct followup queries
994 # get handled first 1822 # get handled first
995 my $queue = delete $ns->{query_queue}; 1823 my $queue = delete $ns->{query_queue}
1824 or return; # be conservative, not sure how that can happen, but we saw a crash here
996 1825
997 (shift @$queue)->[1]->($msg); 1826 (shift @$queue)->[1]->($msg);
998 1827
999 push @{ $ns->{query_queue} }, @$queue; 1828 push @{ $ns->{query_queue} }, @$queue;
1000 1829
1006 } 1835 }
1007 } 1836 }
1008 }, 1837 },
1009); 1838);
1010 1839
1011=item $client->coro (\&cb) 1840=item $client->async (\&cb)
1012 1841
1013Create a new coroutine, running the specified callback. The coroutine will 1842Create a new coroutine, running the specified callback. The coroutine will
1014be automatically cancelled when the client gets destroyed (e.g. on logout, 1843be automatically cancelled when the client gets destroyed (e.g. on logout,
1015or loss of connection). 1844or loss of connection).
1016 1845
1017=cut 1846=cut
1018 1847
1019sub cf::client::coro { 1848sub cf::client::async {
1020 my ($self, $cb) = @_; 1849 my ($self, $cb) = @_;
1021 1850
1022 my $coro; $coro = async { 1851 my $coro = &Coro::async ($cb);
1023 eval {
1024 $cb->();
1025 };
1026 warn $@ if $@;
1027 };
1028 1852
1029 $coro->on_destroy (sub { 1853 $coro->on_destroy (sub {
1030 delete $self->{_coro}{$coro+0}; 1854 delete $self->{_coro}{$coro+0};
1031 }); 1855 });
1032 1856
1204 2028
1205{ 2029{
1206 my $path = cf::localdir . "/database.pst"; 2030 my $path = cf::localdir . "/database.pst";
1207 2031
1208 sub db_load() { 2032 sub db_load() {
1209 warn "loading database $path\n";#d# remove later
1210 $DB = stat $path ? Storable::retrieve $path : { }; 2033 $DB = stat $path ? Storable::retrieve $path : { };
1211 } 2034 }
1212 2035
1213 my $pid; 2036 my $pid;
1214 2037
1215 sub db_save() { 2038 sub db_save() {
1216 warn "saving database $path\n";#d# remove later
1217 waitpid $pid, 0 if $pid; 2039 waitpid $pid, 0 if $pid;
1218 if (0 == ($pid = fork)) { 2040 if (0 == ($pid = fork)) {
1219 $DB->{_meta}{version} = 1; 2041 $DB->{_meta}{version} = 1;
1220 Storable::nstore $DB, "$path~"; 2042 Storable::nstore $DB, "$path~";
1221 rename "$path~", $path; 2043 rename "$path~", $path;
1269 open my $fh, "<:utf8", cf::confdir . "/config" 2091 open my $fh, "<:utf8", cf::confdir . "/config"
1270 or return; 2092 or return;
1271 2093
1272 local $/; 2094 local $/;
1273 *CFG = YAML::Syck::Load <$fh>; 2095 *CFG = YAML::Syck::Load <$fh>;
2096
2097 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2098
2099 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2101
2102 if (exists $CFG{mlockall}) {
2103 eval {
2104 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2105 and die "WARNING: m(un)lockall failed: $!\n";
2106 };
2107 warn $@ if $@;
2108 }
1274} 2109}
1275 2110
1276sub main { 2111sub main {
2112 # we must not ever block the main coroutine
2113 local $Coro::idle = sub {
2114 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2115 async { Event::one_event };
2116 };
2117
1277 cfg_load; 2118 cfg_load;
1278 db_load; 2119 db_load;
1279 load_extensions; 2120 load_extensions;
1280 Event::loop; 2121 Event::loop;
1281} 2122}
1282 2123
1283############################################################################# 2124#############################################################################
1284# initialisation 2125# initialisation
1285 2126
1286sub perl_reload() { 2127sub reload() {
1287 # can/must only be called in main 2128 # can/must only be called in main
1288 if ($Coro::current != $Coro::main) { 2129 if ($Coro::current != $Coro::main) {
1289 warn "can only reload from main coroutine\n"; 2130 warn "can only reload from main coroutine\n";
1290 return; 2131 return;
1291 } 2132 }
1292 2133
1293 warn "reloading..."; 2134 warn "reloading...";
1294 2135
1295 local $FREEZE = 1; 2136 my $guard = freeze_mainloop;
1296 cf::emergency_save; 2137 cf::emergency_save;
1297 2138
1298 eval { 2139 eval {
1299 # if anything goes wrong in here, we should simply crash as we already saved 2140 # if anything goes wrong in here, we should simply crash as we already saved
1300 2141
1362 cf::load_extensions; 2203 cf::load_extensions;
1363 2204
1364 # reattach attachments to objects 2205 # reattach attachments to objects
1365 warn "reattach"; 2206 warn "reattach";
1366 _global_reattach; 2207 _global_reattach;
2208 reattach $_ for values %MAP;
1367 }; 2209 };
1368 2210
1369 if ($@) { 2211 if ($@) {
1370 warn $@; 2212 warn $@;
1371 warn "error while reloading, exiting."; 2213 warn "error while reloading, exiting.";
1373 } 2215 }
1374 2216
1375 warn "reloaded successfully"; 2217 warn "reloaded successfully";
1376}; 2218};
1377 2219
2220#############################################################################
2221
2222unless ($LINK_MAP) {
2223 $LINK_MAP = cf::map::new;
2224
2225 $LINK_MAP->width (41);
2226 $LINK_MAP->height (41);
2227 $LINK_MAP->alloc;
2228 $LINK_MAP->path ("{link}");
2229 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232 # dirty hack because... archetypes are not yet loaded
2233 Event->timer (
2234 after => 10,
2235 cb => sub {
2236 $_[0]->w->cancel;
2237
2238 # provide some exits "home"
2239 my $exit = cf::object::new "exit";
2240
2241 $exit->slaying ($EMERGENCY_POSITION->[0]);
2242 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245 $LINK_MAP->insert ($exit->clone, 19, 19);
2246 $LINK_MAP->insert ($exit->clone, 19, 20);
2247 $LINK_MAP->insert ($exit->clone, 19, 21);
2248 $LINK_MAP->insert ($exit->clone, 20, 19);
2249 $LINK_MAP->insert ($exit->clone, 20, 21);
2250 $LINK_MAP->insert ($exit->clone, 21, 19);
2251 $LINK_MAP->insert ($exit->clone, 21, 20);
2252 $LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254 $exit->destroy;
2255 });
2256
2257 $LINK_MAP->{deny_save} = 1;
2258 $LINK_MAP->{deny_reset} = 1;
2259
2260 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261}
2262
1378register "<global>", __PACKAGE__; 2263register "<global>", __PACKAGE__;
1379 2264
1380register_command "perl-reload" => sub { 2265register_command "reload" => sub {
1381 my ($who, $arg) = @_; 2266 my ($who, $arg) = @_;
1382 2267
1383 if ($who->flag (FLAG_WIZ)) { 2268 if ($who->flag (FLAG_WIZ)) {
1384 $who->message ("start of reload."); 2269 $who->message ("start of reload.");
1385 perl_reload; 2270 reload;
1386 $who->message ("end of reload."); 2271 $who->message ("end of reload.");
1387 } 2272 }
1388}; 2273};
1389 2274
1390unshift @INC, $LIBDIR; 2275unshift @INC, $LIBDIR;
1393 reentrant => 0, 2278 reentrant => 0,
1394 prio => 0, 2279 prio => 0,
1395 at => $NEXT_TICK || $TICK, 2280 at => $NEXT_TICK || $TICK,
1396 data => WF_AUTOCANCEL, 2281 data => WF_AUTOCANCEL,
1397 cb => sub { 2282 cb => sub {
1398 unless ($FREEZE) {
1399 cf::server_tick; # one server iteration 2283 cf::server_tick; # one server iteration
1400 $RUNTIME += $TICK; 2284 $RUNTIME += $TICK;
1401 }
1402
1403 $NEXT_TICK += $TICK; 2285 $NEXT_TICK += $TICK;
1404 2286
1405 # if we are delayed by four ticks or more, skip them all 2287 # if we are delayed by four ticks or more, skip them all
1406 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2288 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1407 2289
1410 }, 2292 },
1411); 2293);
1412 2294
1413IO::AIO::max_poll_time $TICK * 0.2; 2295IO::AIO::max_poll_time $TICK * 0.2;
1414 2296
2297Event->io (
1415Event->io (fd => IO::AIO::poll_fileno, 2298 fd => IO::AIO::poll_fileno,
1416 poll => 'r', 2299 poll => 'r',
1417 prio => 5, 2300 prio => 5,
1418 data => WF_AUTOCANCEL, 2301 data => WF_AUTOCANCEL,
1419 cb => \&IO::AIO::poll_cb); 2302 cb => \&IO::AIO::poll_cb,
2303);
1420 2304
1421# we must not ever block the main coroutine 2305Event->timer (
1422$Coro::idle = sub { 2306 data => WF_AUTOCANCEL,
1423 #Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2307 after => 0,
1424 warn "FATAL: Coro::idle was called, major BUG\n"; 2308 interval => 10,
2309 cb => sub {
1425 (Coro::unblock_sub { 2310 (Coro::unblock_sub {
1426 Event::one_event; 2311 write_runtime
2312 or warn "ERROR: unable to write runtime file: $!";
1427 })->(); 2313 })->();
1428}; 2314 },
2315);
2316
2317END { cf::emergency_save }
1429 2318
14301 23191
1431 2320

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines