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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.104 by root, Sat Dec 30 16:56:16 2006 UTC vs.
Revision 1.148 by root, Mon Jan 8 12:39:16 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;
18 19
20use Digest::MD5;
21use Fcntl;
19use IO::AIO 2.3; 22use IO::AIO 2.32 ();
20use YAML::Syck (); 23use YAML::Syck ();
21use Time::HiRes; 24use Time::HiRes;
22 25
23use Event; $Event::Eval = 1; # no idea why this is required, but it is 26use Event; $Event::Eval = 1; # no idea why this is required, but it is
24 27
25# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26$YAML::Syck::ImplicitUnicode = 1; 29$YAML::Syck::ImplicitUnicode = 1;
27 30
28$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
29 32
30sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31 34
32our %COMMAND = (); 35our %COMMAND = ();
33our %COMMAND_TIME = (); 36our %COMMAND_TIME = ();
44our %CFG; 47our %CFG;
45 48
46our $UPTIME; $UPTIME ||= time; 49our $UPTIME; $UPTIME ||= time;
47our $RUNTIME; 50our $RUNTIME;
48 51
52our %PLAYER; # all users
49our %MAP; # all maps 53our %MAP; # all maps
50our $LINK_MAP; # the special {link} map 54our $LINK_MAP; # the special {link} map
51our $FREEZE; 55our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; # coroutines bound to extensions
52 57
53binmode STDOUT; 58binmode STDOUT;
54binmode STDERR; 59binmode STDERR;
55 60
56# read virtual server time, if available 61# read virtual server time, if available
62 67
63mkdir cf::localdir; 68mkdir cf::localdir;
64mkdir cf::localdir . "/" . cf::playerdir; 69mkdir cf::localdir . "/" . cf::playerdir;
65mkdir cf::localdir . "/" . cf::tmpdir; 70mkdir cf::localdir . "/" . cf::tmpdir;
66mkdir cf::localdir . "/" . cf::uniquedir; 71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS;
67 73
68our %EXT_CORO; 74# a special map that is always available
75our $LINK_MAP;
76our $EMERGENCY_POSITION;
69 77
70############################################################################# 78#############################################################################
71 79
72=head2 GLOBAL VARIABLES 80=head2 GLOBAL VARIABLES
73 81
110 utf8::encode $msg; 118 utf8::encode $msg;
111 119
112 $msg .= "\n" 120 $msg .= "\n"
113 unless $msg =~ /\n$/; 121 unless $msg =~ /\n$/;
114 122
115 LOG llevError, "cfperl: $msg"; 123 LOG llevError, $msg;
116 }; 124 };
117} 125}
118 126
119@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 127@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 128@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
172sub to_json($) { 180sub to_json($) {
173 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 181 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174 JSON::Syck::Dump $_[0] 182 JSON::Syck::Dump $_[0]
175} 183}
176 184
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 $guard
233}
234
235=item cf::async { BLOCK }
236
237Currently the same as Coro::async_pool, meaning you cannot use
238C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
239thing you are allowed to do is call C<prio> on it.
240
241=cut
242
243BEGIN { *async = \&Coro::async_pool }
244
245=item cf::sync_job { BLOCK }
246
247The design of crossfire+ requires that the main coro ($Coro::main) is
248always able to handle events or runnable, as crossfire+ is only partly
249reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
250
251If it must be done, put the blocking parts into C<sync_job>. This will run
252the given BLOCK in another coroutine while waiting for the result. The
253server will be frozen during this time, so the block should either finish
254fast or be very important.
255
256=cut
257
258sub sync_job(&) {
259 my ($job) = @_;
260
261 if ($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 $busy;
276 })->prio (Coro::PRIO_MAX);
277
278 while ($busy) {
279 Coro::cede or Event::one_event;
280 }
281
282 wantarray ? @res : $res[0]
283 } else {
284 # we are in another coroutine, how wonderful, everything just works
285
286 $job->()
287 }
288}
289
177=item $coro = cf::coro { BLOCK } 290=item $coro = cf::async_ext { BLOCK }
178 291
179Creates and returns a new coro. This coro is automcatially being canceled 292Like async, but this coro is automcatially being canceled when the
180when the extension calling this is being unloaded. 293extension calling this is being unloaded.
181 294
182=cut 295=cut
183 296
184sub coro(&) { 297sub async_ext(&) {
185 my $cb = shift; 298 my $cb = shift;
186 299
187 my $coro; $coro = async { 300 my $coro = &Coro::async ($cb);
188 eval {
189 $cb->();
190 };
191 warn $@ if $@;
192 };
193 301
194 $coro->on_destroy (sub { 302 $coro->on_destroy (sub {
195 delete $EXT_CORO{$coro+0}; 303 delete $EXT_CORO{$coro+0};
196 }); 304 });
197 $EXT_CORO{$coro+0} = $coro; 305 $EXT_CORO{$coro+0} = $coro;
198 306
199 $coro 307 $coro
200} 308}
201 309
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~", $runtime
327 and return;
328
329 1
330}
331
202=back 332=back
203 333
204=cut 334=cut
335
336#############################################################################
337
338package cf::path;
339
340sub new {
341 my ($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 $_[0]{path} =~ m{^/styles/}
452}
453
454package cf;
205 455
206############################################################################# 456#############################################################################
207 457
208=head2 ATTACHABLE OBJECTS 458=head2 ATTACHABLE OBJECTS
209 459
563); 813);
564 814
565sub object_freezer_save { 815sub object_freezer_save {
566 my ($filename, $rdata, $objs) = @_; 816 my ($filename, $rdata, $objs) = @_;
567 817
818 sync_job {
568 if (length $$rdata) { 819 if (length $$rdata) {
569 warn sprintf "saving %s (%d,%d)\n", 820 warn sprintf "saving %s (%d,%d)\n",
570 $filename, length $$rdata, scalar @$objs; 821 $filename, length $$rdata, scalar @$objs;
571 822
572 if (open my $fh, ">:raw", "$filename~") { 823 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573 chmod SAVE_MODE, $fh;
574 syswrite $fh, $$rdata;
575 close $fh;
576
577 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578 chmod SAVE_MODE, $fh; 824 chmod SAVE_MODE, $fh;
579 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs }; 825 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826 aio_fsync $fh;
580 close $fh; 827 close $fh;
828
829 if (@$objs) {
830 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831 chmod SAVE_MODE, $fh;
832 my $data = Storable::nfreeze { version => 1, objs => $objs };
833 aio_write $fh, 0, (length $data), $data, 0;
834 aio_fsync $fh;
835 close $fh;
581 rename "$filename.pst~", "$filename.pst"; 836 aio_rename "$filename.pst~", "$filename.pst";
837 }
838 } else {
839 aio_unlink "$filename.pst";
840 }
841
842 aio_rename "$filename~", $filename;
582 } else { 843 } else {
583 unlink "$filename.pst"; 844 warn "FATAL: $filename~: $!\n";
584 } 845 }
585
586 rename "$filename~", $filename;
587 } else { 846 } else {
588 warn "FATAL: $filename~: $!\n";
589 }
590 } else {
591 unlink $filename; 847 aio_unlink $filename;
592 unlink "$filename.pst"; 848 aio_unlink "$filename.pst";
849 }
593 } 850 }
594} 851}
595 852
596sub object_freezer_as_string { 853sub object_freezer_as_string {
597 my ($rdata, $objs) = @_; 854 my ($rdata, $objs) = @_;
602} 859}
603 860
604sub object_thawer_load { 861sub object_thawer_load {
605 my ($filename) = @_; 862 my ($filename) = @_;
606 863
607 local $/; 864 my ($data, $av);
608 865
609 my $av; 866 (aio_load $filename, $data) >= 0
867 or return;
610 868
611 #TODO: use sysread etc. 869 unless (aio_stat "$filename.pst") {
612 if (open my $data, "<:raw:perlio", $filename) { 870 (aio_load "$filename.pst", $av) >= 0
613 $data = <$data>; 871 or return;
614 if (open my $pst, "<:raw:perlio", "$filename.pst") {
615 $av = eval { (Storable::thaw <$pst>)->{objs} }; 872 $av = eval { (Storable::thaw $av)->{objs} };
616 } 873 }
874
875 warn sprintf "loading %s (%d)\n",
876 $filename, length $data, scalar @{$av || []};#d#
617 return ($data, $av); 877 return ($data, $av);
618 }
619
620 ()
621} 878}
622 879
623############################################################################# 880#############################################################################
624# command handling &c 881# command handling &c
625 882
815 1072
816=head2 CORE EXTENSIONS 1073=head2 CORE EXTENSIONS
817 1074
818Functions and methods that extend core crossfire objects. 1075Functions and methods that extend core crossfire objects.
819 1076
1077=cut
1078
1079package cf::player;
1080
820=head3 cf::player 1081=head3 cf::player
821 1082
822=over 4 1083=over 4
823 1084
824=item cf::player::exists $login 1085=item cf::player::find $login
825 1086
826Returns true when the given account exists. 1087Returns the given player object, loading it if necessary (might block).
827 1088
828=cut 1089=cut
829 1090
830sub cf::player::exists($) { 1091sub playerdir($) {
831 cf::player::find $_[0] 1092 cf::localdir
832 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 IO::AIO::aio_rename $path, $temp, sub {
1172 delete $cf::PLAYER{$pl->ob->name};
1173 $pl->destroy;
1174
1175 IO::AIO::aio_rmtree $temp;
1176 };
833} 1177}
834 1178
835=item $player->ext_reply ($msgid, $msgtype, %msg) 1179=item $player->ext_reply ($msgid, $msgtype, %msg)
836 1180
837Sends an ext reply to the player. 1181Sends an ext reply to the player.
838 1182
839=cut 1183=cut
840 1184
841sub cf::player::ext_reply($$$%) { 1185sub ext_reply($$$%) {
842 my ($self, $id, %msg) = @_; 1186 my ($self, $id, %msg) = @_;
843 1187
844 $msg{msgid} = $id; 1188 $msg{msgid} = $id;
845 1189
846 $self->send ("ext " . to_json \%msg); 1190 $self->send ("ext " . cf::to_json \%msg);
847} 1191}
1192
1193package cf;
848 1194
849=back 1195=back
1196
1197
1198=head3 cf::map
1199
1200=over 4
1201
1202=cut
1203
1204package cf::map;
1205
1206use Fcntl;
1207use Coro::AIO;
1208
1209our $MAX_RESET = 3600;
1210our $DEFAULT_RESET = 3000;
1211
1212sub generate_random_map {
1213 my ($path, $rmp) = @_;
1214
1215 # mit "rum" bekleckern, nicht
1216 cf::map::_create_random_map
1217 $path,
1218 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1219 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1220 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1221 $rmp->{exit_on_final_map},
1222 $rmp->{xsize}, $rmp->{ysize},
1223 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1224 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1225 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1226 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1227 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1228 (cf::region::find $rmp->{region})
1229}
1230
1231# and all this just because we cannot iterate over
1232# all maps in C++...
1233sub change_all_map_light {
1234 my ($change) = @_;
1235
1236 $_->change_map_light ($change)
1237 for grep $_->outdoor, values %cf::MAP;
1238}
1239
1240sub try_load_header($) {
1241 my ($path) = @_;
1242
1243 utf8::encode $path;
1244 aio_open $path, O_RDONLY, 0
1245 or return;
1246
1247 my $map = cf::map::new
1248 or return;
1249
1250 # for better error messages only, will be overwritten
1251 $map->path ($path);
1252
1253 $map->load_header ($path)
1254 or return;
1255
1256 $map->{load_path} = $path;
1257
1258 $map
1259}
1260
1261sub find;
1262sub find {
1263 my ($path, $origin) = @_;
1264
1265 #warn "find<$path,$origin>\n";#d#
1266
1267 $path = new cf::path $path, $origin && $origin->path;
1268 my $key = $path->as_string;
1269
1270 cf::lock_wait "map_find:$key";
1271
1272 $cf::MAP{$key} || do {
1273 my $guard = cf::lock_acquire "map_find:$key";
1274
1275 # do it the slow way
1276 my $map = try_load_header $path->save_path;
1277
1278 Coro::cede;
1279
1280 if ($map) {
1281 $map->last_access ((delete $map->{last_access})
1282 || $cf::RUNTIME); #d#
1283 # safety
1284 $map->{instantiate_time} = $cf::RUNTIME
1285 if $map->{instantiate_time} > $cf::RUNTIME;
1286 } else {
1287 if (my $rmp = $path->random_map_params) {
1288 $map = generate_random_map $key, $rmp;
1289 } else {
1290 $map = try_load_header $path->load_path;
1291 }
1292
1293 $map or return;
1294
1295 $map->{load_original} = 1;
1296 $map->{instantiate_time} = $cf::RUNTIME;
1297 $map->last_access ($cf::RUNTIME);
1298 $map->instantiate;
1299
1300 # per-player maps become, after loading, normal maps
1301 $map->per_player (0) if $path->{user_rel};
1302 }
1303
1304 $map->path ($key);
1305 $map->{path} = $path;
1306 $map->{last_save} = $cf::RUNTIME;
1307
1308 Coro::cede;
1309
1310 if ($map->should_reset) {
1311 $map->reset;
1312 undef $guard;
1313 $map = find $path
1314 or return;
1315 }
1316
1317 $cf::MAP{$key} = $map
1318 }
1319}
1320
1321sub load {
1322 my ($self) = @_;
1323
1324 my $path = $self->{path};
1325 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1326
1327 return if $self->in_memory != cf::MAP_SWAPPED;
1328
1329 $self->in_memory (cf::MAP_LOADING);
1330
1331 $self->alloc;
1332 $self->load_objects ($self->{load_path}, 1)
1333 or return;
1334
1335 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1336 if delete $self->{load_original};
1337
1338 if (my $uniq = $path->uniq_path) {
1339 utf8::encode $uniq;
1340 if (aio_open $uniq, O_RDONLY, 0) {
1341 $self->clear_unique_items;
1342 $self->load_objects ($uniq, 0);
1343 }
1344 }
1345
1346 Coro::cede;
1347
1348 # now do the right thing for maps
1349 $self->link_multipart_objects;
1350
1351 if ($self->{path}->is_style_map) {
1352 $self->{deny_save} = 1;
1353 $self->{deny_reset} = 1;
1354 } else {
1355 $self->fix_auto_apply;
1356 $self->decay_objects;
1357 $self->update_buttons;
1358 $self->set_darkness_map;
1359 $self->difficulty ($self->estimate_difficulty)
1360 unless $self->difficulty;
1361 $self->activate;
1362 }
1363
1364 Coro::cede;
1365
1366 $self->in_memory (cf::MAP_IN_MEMORY);
1367}
1368
1369sub find_sync {
1370 my ($path, $origin) = @_;
1371
1372 cf::sync_job { cf::map::find $path, $origin }
1373}
1374
1375sub do_load_sync {
1376 my ($map) = @_;
1377
1378 cf::sync_job { $map->load };
1379}
1380
1381sub save {
1382 my ($self) = @_;
1383
1384 my $lock = cf::lock_acquire "map_data:" . $self->path;
1385
1386 $self->{last_save} = $cf::RUNTIME;
1387
1388 return unless $self->dirty;
1389
1390 my $save = $self->{path}->save_path; utf8::encode $save;
1391 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1392
1393 $self->{load_path} = $save;
1394
1395 return if $self->{deny_save};
1396
1397 local $self->{last_access} = $self->last_access;#d#
1398
1399 cf::async {
1400 $_->contr->save for $self->players;
1401 };
1402
1403 if ($uniq) {
1404 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1405 $self->save_objects ($uniq, cf::IO_UNIQUES);
1406 } else {
1407 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1408 }
1409}
1410
1411sub swap_out {
1412 my ($self) = @_;
1413
1414 # save first because save cedes
1415 $self->save;
1416
1417 my $lock = cf::lock_acquire "map_data:" . $self->path;
1418
1419 return if $self->players;
1420 return if $self->in_memory != cf::MAP_IN_MEMORY;
1421 return if $self->{deny_save};
1422
1423 $self->clear;
1424 $self->in_memory (cf::MAP_SWAPPED);
1425}
1426
1427sub reset_at {
1428 my ($self) = @_;
1429
1430 # TODO: safety, remove and allow resettable per-player maps
1431 return 1e99 if $self->{path}{user_rel};
1432 return 1e99 if $self->{deny_reset};
1433
1434 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1435 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1436
1437 $time + $to
1438}
1439
1440sub should_reset {
1441 my ($self) = @_;
1442
1443 $self->reset_at <= $cf::RUNTIME
1444}
1445
1446sub unlink_save {
1447 my ($self) = @_;
1448
1449 utf8::encode (my $save = $self->{path}->save_path);
1450 aioreq_pri 3; IO::AIO::aio_unlink $save;
1451 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1452}
1453
1454sub rename {
1455 my ($self, $new_path) = @_;
1456
1457 $self->unlink_save;
1458
1459 delete $cf::MAP{$self->path};
1460 $self->{path} = new cf::path $new_path;
1461 $self->path ($self->{path}->as_string);
1462 $cf::MAP{$self->path} = $self;
1463
1464 $self->save;
1465}
1466
1467sub reset {
1468 my ($self) = @_;
1469
1470 my $lock = cf::lock_acquire "map_data:" . $self->path;
1471
1472 return if $self->players;
1473 return if $self->{path}{user_rel};#d#
1474
1475 warn "resetting map ", $self->path;#d#
1476
1477 delete $cf::MAP{$self->path};
1478
1479 $_->clear_links_to ($self) for values %cf::MAP;
1480
1481 $self->unlink_save;
1482 $self->destroy;
1483}
1484
1485my $nuke_counter = "aaaa";
1486
1487sub nuke {
1488 my ($self) = @_;
1489
1490 $self->{deny_save} = 1;
1491 $self->reset_timeout (1);
1492 $self->rename ("{nuke}/" . ($nuke_counter++));
1493 $self->reset; # polite request, might not happen
1494}
1495
1496sub customise_for {
1497 my ($map, $ob) = @_;
1498
1499 if ($map->per_player) {
1500 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1501 }
1502
1503 $map
1504}
1505
1506sub emergency_save {
1507 my $freeze_guard = cf::freeze_mainloop;
1508
1509 warn "enter emergency perl save\n";
1510
1511 cf::sync_job {
1512 warn "begin emergency player save\n";
1513 $_->save for values %cf::PLAYER;
1514 warn "end emergency player save\n";
1515
1516 warn "begin emergency map save\n";
1517 $_->save for values %cf::MAP;
1518 warn "end emergency map save\n";
1519 };
1520
1521 warn "leave emergency perl save\n";
1522}
1523
1524package cf;
1525
1526=back
1527
850 1528
851=head3 cf::object::player 1529=head3 cf::object::player
852 1530
853=over 4 1531=over 4
854 1532
890 (ref $cf::CFG{"may_$access"} 1568 (ref $cf::CFG{"may_$access"}
891 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1569 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892 : $cf::CFG{"may_$access"}) 1570 : $cf::CFG{"may_$access"})
893} 1571}
894 1572
1573=item $player_object->enter_link
1574
1575Freezes the player and moves him/her to a special map (C<{link}>).
1576
1577The player should be reaosnably safe there for short amounts of time. You
1578I<MUST> call C<leave_link> as soon as possible, though.
1579
1580=item $player_object->leave_link ($map, $x, $y)
1581
1582Moves the player out of the specila link map onto the given map. If the
1583map is not valid (or omitted), the player will be moved back to the
1584location he/she was before the call to C<enter_link>, or, if that fails,
1585to the emergency map position.
1586
1587Might block.
1588
1589=cut
1590
1591sub cf::object::player::enter_link {
1592 my ($self) = @_;
1593
1594 $self->deactivate_recursive;
1595
1596 return if $self->map == $LINK_MAP;
1597
1598 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1599 if $self->map;
1600
1601 $self->enter_map ($LINK_MAP, 20, 20);
1602}
1603
1604sub cf::object::player::leave_link {
1605 my ($self, $map, $x, $y) = @_;
1606
1607 my $link_pos = delete $self->{_link_pos};
1608
1609 unless ($map) {
1610 # restore original map position
1611 ($map, $x, $y) = @{ $link_pos || [] };
1612 $map = cf::map::find $map;
1613
1614 unless ($map) {
1615 ($map, $x, $y) = @$EMERGENCY_POSITION;
1616 $map = cf::map::find $map
1617 or die "FATAL: cannot load emergency map\n";
1618 }
1619 }
1620
1621 ($x, $y) = (-1, -1)
1622 unless (defined $x) && (defined $y);
1623
1624 # use -1 or undef as default coordinates, not 0, 0
1625 ($x, $y) = ($map->enter_x, $map->enter_y)
1626 if $x <=0 && $y <= 0;
1627
1628 $map->load;
1629
1630 return unless $self->contr->active;
1631 $self->activate_recursive;
1632 $self->enter_map ($map, $x, $y);
1633}
1634
1635cf::player->attach (
1636 on_logout => sub {
1637 my ($pl) = @_;
1638
1639 # abort map switching before logout
1640 if ($pl->ob->{_link_pos}) {
1641 cf::sync_job {
1642 $pl->ob->leave_link
1643 };
1644 }
1645 },
1646 on_login => sub {
1647 my ($pl) = @_;
1648
1649 # try to abort aborted map switching on player login :)
1650 # should happen only on crashes
1651 if ($pl->ob->{_link_pos}) {
1652 $pl->ob->enter_link;
1653 (async {
1654 # we need this sleep as the login has a concurrent enter_exit running
1655 # and this sleep increases chances of the player not ending up in scorn
1656 $pl->ob->reply (undef,
1657 "There was an internal problem at your last logout, "
1658 . "the server will try to bring you to your intended destination in a second.",
1659 cf::NDI_RED);
1660 Coro::Timer::sleep 1;
1661 $pl->ob->leave_link;
1662 })->prio (2);
1663 }
1664 },
1665);
1666
1667=item $player_object->goto ($path, $x, $y)
1668
1669=cut
1670
1671sub cf::object::player::goto {
1672 my ($self, $path, $x, $y) = @_;
1673
1674 $self->enter_link;
1675
1676 (async {
1677 $path = new cf::path $path;
1678
1679 my $map = cf::map::find $path->as_string;
1680 $map = $map->customise_for ($self) if $map;
1681
1682# warn "entering ", $map->path, " at ($x, $y)\n"
1683# if $map;
1684
1685 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1686
1687 $self->leave_link ($map, $x, $y);
1688 })->prio (1);
1689}
1690
1691=item $player_object->enter_exit ($exit_object)
1692
1693=cut
1694
1695sub parse_random_map_params {
1696 my ($spec) = @_;
1697
1698 my $rmp = { # defaults
1699 xsize => 10,
1700 ysize => 10,
1701 };
1702
1703 for (split /\n/, $spec) {
1704 my ($k, $v) = split /\s+/, $_, 2;
1705
1706 $rmp->{lc $k} = $v if (length $k) && (length $v);
1707 }
1708
1709 $rmp
1710}
1711
1712sub prepare_random_map {
1713 my ($exit) = @_;
1714
1715 # all this does is basically replace the /! path by
1716 # a new random map path (?random/...) with a seed
1717 # that depends on the exit object
1718
1719 my $rmp = parse_random_map_params $exit->msg;
1720
1721 if ($exit->map) {
1722 $rmp->{region} = $exit->map->region_name;
1723 $rmp->{origin_map} = $exit->map->path;
1724 $rmp->{origin_x} = $exit->x;
1725 $rmp->{origin_y} = $exit->y;
1726 }
1727
1728 $rmp->{random_seed} ||= $exit->random_seed;
1729
1730 my $data = cf::to_json $rmp;
1731 my $md5 = Digest::MD5::md5_hex $data;
1732
1733 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1734 aio_write $fh, 0, (length $data), $data, 0;
1735
1736 $exit->slaying ("?random/$md5");
1737 $exit->msg (undef);
1738 }
1739}
1740
1741sub cf::object::player::enter_exit {
1742 my ($self, $exit) = @_;
1743
1744 return unless $self->type == cf::PLAYER;
1745
1746 $self->enter_link;
1747
1748 (async {
1749 $self->deactivate_recursive; # just to be sure
1750 unless (eval {
1751 prepare_random_map $exit
1752 if $exit->slaying eq "/!";
1753
1754 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1755 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1756
1757 1;
1758 }) {
1759 $self->message ("Something went wrong deep within the crossfire server. "
1760 . "I'll try to bring you back to the map you were before. "
1761 . "Please report this to the dungeon master",
1762 cf::NDI_UNIQUE | cf::NDI_RED);
1763
1764 warn "ERROR in enter_exit: $@";
1765 $self->leave_link;
1766 }
1767 })->prio (1);
1768}
1769
895=head3 cf::client 1770=head3 cf::client
896 1771
897=over 4 1772=over 4
898 1773
899=item $client->send_drawinfo ($text, $flags) 1774=item $client->send_drawinfo ($text, $flags)
942 on_reply => sub { 1817 on_reply => sub {
943 my ($ns, $msg) = @_; 1818 my ($ns, $msg) = @_;
944 1819
945 # this weird shuffling is so that direct followup queries 1820 # this weird shuffling is so that direct followup queries
946 # get handled first 1821 # get handled first
947 my $queue = delete $ns->{query_queue}; 1822 my $queue = delete $ns->{query_queue}
1823 or return; # be conservative, not sure how that can happen, but we saw a crash here
948 1824
949 (shift @$queue)->[1]->($msg); 1825 (shift @$queue)->[1]->($msg);
950 1826
951 push @{ $ns->{query_queue} }, @$queue; 1827 push @{ $ns->{query_queue} }, @$queue;
952 1828
958 } 1834 }
959 } 1835 }
960 }, 1836 },
961); 1837);
962 1838
963=item $client->coro (\&cb) 1839=item $client->async (\&cb)
964 1840
965Create a new coroutine, running the specified callback. The coroutine will 1841Create a new coroutine, running the specified callback. The coroutine will
966be automatically cancelled when the client gets destroyed (e.g. on logout, 1842be automatically cancelled when the client gets destroyed (e.g. on logout,
967or loss of connection). 1843or loss of connection).
968 1844
969=cut 1845=cut
970 1846
971sub cf::client::coro { 1847sub cf::client::async {
972 my ($self, $cb) = @_; 1848 my ($self, $cb) = @_;
973 1849
974 my $coro; $coro = async { 1850 my $coro = &Coro::async ($cb);
975 eval {
976 $cb->();
977 };
978 warn $@ if $@;
979 };
980 1851
981 $coro->on_destroy (sub { 1852 $coro->on_destroy (sub {
982 delete $self->{_coro}{$coro+0}; 1853 delete $self->{_coro}{$coro+0};
983 }); 1854 });
984 1855
1156 2027
1157{ 2028{
1158 my $path = cf::localdir . "/database.pst"; 2029 my $path = cf::localdir . "/database.pst";
1159 2030
1160 sub db_load() { 2031 sub db_load() {
1161 warn "loading database $path\n";#d# remove later
1162 $DB = stat $path ? Storable::retrieve $path : { }; 2032 $DB = stat $path ? Storable::retrieve $path : { };
1163 } 2033 }
1164 2034
1165 my $pid; 2035 my $pid;
1166 2036
1167 sub db_save() { 2037 sub db_save() {
1168 warn "saving database $path\n";#d# remove later
1169 waitpid $pid, 0 if $pid; 2038 waitpid $pid, 0 if $pid;
1170 if (0 == ($pid = fork)) { 2039 if (0 == ($pid = fork)) {
1171 $DB->{_meta}{version} = 1; 2040 $DB->{_meta}{version} = 1;
1172 Storable::nstore $DB, "$path~"; 2041 Storable::nstore $DB, "$path~";
1173 rename "$path~", $path; 2042 rename "$path~", $path;
1221 open my $fh, "<:utf8", cf::confdir . "/config" 2090 open my $fh, "<:utf8", cf::confdir . "/config"
1222 or return; 2091 or return;
1223 2092
1224 local $/; 2093 local $/;
1225 *CFG = YAML::Syck::Load <$fh>; 2094 *CFG = YAML::Syck::Load <$fh>;
2095
2096 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2097
2098 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2099 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2100
2101 if (exists $CFG{mlockall}) {
2102 eval {
2103 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2104 and die "WARNING: m(un)lockall failed: $!\n";
2105 };
2106 warn $@ if $@;
2107 }
1226} 2108}
1227 2109
1228sub main { 2110sub main {
2111 # we must not ever block the main coroutine
2112 local $Coro::idle = sub {
2113 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2114 async { Event::one_event };
2115 };
2116
1229 cfg_load; 2117 cfg_load;
1230 db_load; 2118 db_load;
1231 load_extensions; 2119 load_extensions;
1232 Event::loop; 2120 Event::loop;
1233} 2121}
1234 2122
1235############################################################################# 2123#############################################################################
1236# initialisation 2124# initialisation
1237 2125
1238sub _perl_reload() { 2126sub reload() {
2127 # can/must only be called in main
2128 if ($Coro::current != $Coro::main) {
2129 warn "can only reload from main coroutine\n";
2130 return;
2131 }
2132
1239 warn "reloading..."; 2133 warn "reloading...";
1240 2134
2135 my $guard = freeze_mainloop;
2136 cf::emergency_save;
2137
1241 eval { 2138 eval {
1242 local $FREEZE = 1; 2139 # if anything goes wrong in here, we should simply crash as we already saved
1243
1244 cf::emergency_save;
1245 2140
1246 # cancel all watchers 2141 # cancel all watchers
1247 for (Event::all_watchers) { 2142 for (Event::all_watchers) {
1248 $_->cancel if $_->data & WF_AUTOCANCEL; 2143 $_->cancel if $_->data & WF_AUTOCANCEL;
1249 } 2144 }
1307 cf::load_extensions; 2202 cf::load_extensions;
1308 2203
1309 # reattach attachments to objects 2204 # reattach attachments to objects
1310 warn "reattach"; 2205 warn "reattach";
1311 _global_reattach; 2206 _global_reattach;
2207 reattach $_ for values %MAP;
1312 }; 2208 };
1313 warn $@ if $@;
1314 2209
1315 warn "reloaded"; 2210 if ($@) {
2211 warn $@;
2212 warn "error while reloading, exiting.";
2213 exit 1;
2214 }
2215
2216 warn "reloaded successfully";
1316}; 2217};
1317 2218
1318sub perl_reload() { 2219#############################################################################
1319 _perl_reload; 2220
2221unless ($LINK_MAP) {
2222 $LINK_MAP = cf::map::new;
2223
2224 $LINK_MAP->width (41);
2225 $LINK_MAP->height (41);
2226 $LINK_MAP->alloc;
2227 $LINK_MAP->path ("{link}");
2228 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2229 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2230
2231 # dirty hack because... archetypes are not yet loaded
2232 Event->timer (
2233 after => 10,
2234 cb => sub {
2235 $_[0]->w->cancel;
2236
2237 # provide some exits "home"
2238 my $exit = cf::object::new "exit";
2239
2240 $exit->slaying ($EMERGENCY_POSITION->[0]);
2241 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2242 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2243
2244 $LINK_MAP->insert ($exit->clone, 19, 19);
2245 $LINK_MAP->insert ($exit->clone, 19, 20);
2246 $LINK_MAP->insert ($exit->clone, 19, 21);
2247 $LINK_MAP->insert ($exit->clone, 20, 19);
2248 $LINK_MAP->insert ($exit->clone, 20, 21);
2249 $LINK_MAP->insert ($exit->clone, 21, 19);
2250 $LINK_MAP->insert ($exit->clone, 21, 20);
2251 $LINK_MAP->insert ($exit->clone, 21, 21);
2252
2253 $exit->destroy;
2254 });
2255
2256 $LINK_MAP->{deny_save} = 1;
2257 $LINK_MAP->{deny_reset} = 1;
2258
2259 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1320} 2260}
1321 2261
1322register "<global>", __PACKAGE__; 2262register "<global>", __PACKAGE__;
1323 2263
1324register_command "perl-reload" => sub { 2264register_command "reload" => sub {
1325 my ($who, $arg) = @_; 2265 my ($who, $arg) = @_;
1326 2266
1327 if ($who->flag (FLAG_WIZ)) { 2267 if ($who->flag (FLAG_WIZ)) {
2268 $who->message ("start of reload.");
2269 reload;
1328 $who->message ("reloading..."); 2270 $who->message ("end of reload.");
1329 _perl_reload;
1330 } 2271 }
1331}; 2272};
1332 2273
1333unshift @INC, $LIBDIR; 2274unshift @INC, $LIBDIR;
1334 2275
1336 reentrant => 0, 2277 reentrant => 0,
1337 prio => 0, 2278 prio => 0,
1338 at => $NEXT_TICK || $TICK, 2279 at => $NEXT_TICK || $TICK,
1339 data => WF_AUTOCANCEL, 2280 data => WF_AUTOCANCEL,
1340 cb => sub { 2281 cb => sub {
1341 unless ($FREEZE) {
1342 cf::server_tick; # one server iteration 2282 cf::server_tick; # one server iteration
1343 $RUNTIME += $TICK; 2283 $RUNTIME += $TICK;
1344 }
1345
1346 $NEXT_TICK += $TICK; 2284 $NEXT_TICK += $TICK;
1347 2285
1348 # if we are delayed by four ticks or more, skip them all 2286 # if we are delayed by four ticks or more, skip them all
1349 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2287 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1350 2288
1353 }, 2291 },
1354); 2292);
1355 2293
1356IO::AIO::max_poll_time $TICK * 0.2; 2294IO::AIO::max_poll_time $TICK * 0.2;
1357 2295
2296Event->io (
1358Event->io (fd => IO::AIO::poll_fileno, 2297 fd => IO::AIO::poll_fileno,
1359 poll => 'r', 2298 poll => 'r',
1360 prio => 5, 2299 prio => 5,
1361 data => WF_AUTOCANCEL, 2300 data => WF_AUTOCANCEL,
1362 cb => \&IO::AIO::poll_cb); 2301 cb => \&IO::AIO::poll_cb,
2302);
1363 2303
1364# we must not ever block the main coroutine 2304Event->timer (
1365$Coro::idle = sub { 2305 data => WF_AUTOCANCEL,
1366 #Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2306 after => 0,
1367 warn "FATAL: Coro::idle was called, major BUG\n"; 2307 interval => 10,
2308 cb => sub {
1368 (Coro::unblock_sub { 2309 (Coro::unblock_sub {
1369 Event::one_event; 2310 write_runtime
2311 or warn "ERROR: unable to write runtime file: $!";
1370 })->(); 2312 })->();
1371}; 2313 },
2314);
2315
2316END { cf::emergency_save }
1372 2317
13731 23181
1374 2319

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