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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3; 13use Coro 3.3 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use Data::Dumper;
20use Digest::MD5; 21use Digest::MD5;
21use Fcntl; 22use Fcntl;
22use IO::AIO 2.31 (); 23use IO::AIO 2.32 ();
23use YAML::Syck (); 24use YAML::Syck ();
24use Time::HiRes; 25use Time::HiRes;
25 26
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 27use Event; $Event::Eval = 1; # no idea why this is required, but it is
27 28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 32$YAML::Syck::ImplicitUnicode = 1;
30 33
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 35
35our %COMMAND = (); 36our %COMMAND = ();
36our %COMMAND_TIME = (); 37our %COMMAND_TIME = ();
38
39our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 40our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps
38 43
39our @EVENT; 44our @EVENT;
40our $LIBDIR = datadir . "/ext"; 45our $LIBDIR = datadir . "/ext";
41 46
42our $TICK = MAX_TIME * 1e-6; 47our $TICK = MAX_TIME * 1e-6;
47our %CFG; 52our %CFG;
48 53
49our $UPTIME; $UPTIME ||= time; 54our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 55our $RUNTIME;
51 56
57our %PLAYER; # all users
52our %MAP; # all maps 58our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 59our $LINK_MAP; # the special {link} map
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 60our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 61
62our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
57 64
58binmode STDOUT; 65binmode STDOUT;
59binmode STDERR; 66binmode STDERR;
60 67
61# read virtual server time, if available 68# read virtual server time, if available
71mkdir cf::localdir . "/" . cf::uniquedir; 78mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 79mkdir $RANDOM_MAPS;
73 80
74# a special map that is always available 81# a special map that is always available
75our $LINK_MAP; 82our $LINK_MAP;
76 83our $EMERGENCY_POSITION;
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 84
79############################################################################# 85#############################################################################
80 86
81=head2 GLOBAL VARIABLES 87=head2 GLOBAL VARIABLES
82 88
106 112
107=item %cf::CFG 113=item %cf::CFG
108 114
109Configuration for the server, loaded from C</etc/crossfire/config>, or 115Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 116from wherever your confdir points to.
117
118=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
119
120These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
121or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
122processing has been done. Call C<< ->wait >> on them to maximise the
123window of cpu time available, or simply to synchronise to the server tick.
111 124
112=back 125=back
113 126
114=cut 127=cut
115 128
119 utf8::encode $msg; 132 utf8::encode $msg;
120 133
121 $msg .= "\n" 134 $msg .= "\n"
122 unless $msg =~ /\n$/; 135 unless $msg =~ /\n$/;
123 136
124 LOG llevError, "cfperl: $msg"; 137 LOG llevError, $msg;
125 }; 138 };
126} 139}
127 140
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 141@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 142@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 160
148$Event::DIED = sub { 161$Event::DIED = sub {
149 warn "error in event callback: @_"; 162 warn "error in event callback: @_";
150}; 163};
151 164
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 165=head2 UTILITY FUNCTIONS
157 166
158=over 4 167=over 4
159 168
169=item dumpval $ref
170
160=cut 171=cut
172
173sub dumpval {
174 eval {
175 local $SIG{__DIE__};
176 my $d;
177 if (1) {
178 $d = new Data::Dumper([$_[0]], ["*var"]);
179 $d->Terse(1);
180 $d->Indent(2);
181 $d->Quotekeys(0);
182 $d->Useqq(1);
183 #$d->Bless(...);
184 $d->Seen($_[1]) if @_ > 1;
185 $d = $d->Dump();
186 }
187 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188 $d
189 } || "[unable to dump $_[0]: '$@']";
190}
161 191
162use JSON::Syck (); # TODO# replace by JSON::PC once working 192use JSON::Syck (); # TODO# replace by JSON::PC once working
163 193
164=item $ref = cf::from_json $json 194=item $ref = cf::from_json $json
165 195
180 210
181sub to_json($) { 211sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 212 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 213 JSON::Syck::Dump $_[0]
184} 214}
215
216=item cf::lock_wait $string
217
218Wait until the given lock is available. See cf::lock_acquire.
219
220=item my $lock = cf::lock_acquire $string
221
222Wait until the given lock is available and then acquires it and returns
223a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224for example when the coroutine gets canceled), the lock is automatically
225returned.
226
227Lock names should begin with a unique identifier (for example, cf::map::find
228uses map_find and cf::map::load uses map_load).
229
230=cut
231
232our %LOCK;
233
234sub lock_wait($) {
235 my ($key) = @_;
236
237 # wait for lock, if any
238 while ($LOCK{$key}) {
239 push @{ $LOCK{$key} }, $Coro::current;
240 Coro::schedule;
241 }
242}
243
244sub lock_acquire($) {
245 my ($key) = @_;
246
247 # wait, to be sure we are not locked
248 lock_wait $key;
249
250 $LOCK{$key} = [];
251
252 Coro::guard {
253 # wake up all waiters, to be on the safe side
254 $_->ready for @{ delete $LOCK{$key} };
255 }
256}
257
258sub freeze_mainloop {
259 return unless $TICK_WATCHER->is_active;
260
261 my $guard = Coro::guard { $TICK_WATCHER->start };
262 $TICK_WATCHER->stop;
263 $guard
264}
265
266=item cf::async { BLOCK }
267
268Currently the same as Coro::async_pool, meaning you cannot use
269C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
270thing you are allowed to do is call C<prio> on it.
271
272=cut
273
274BEGIN { *async = \&Coro::async_pool }
185 275
186=item cf::sync_job { BLOCK } 276=item cf::sync_job { BLOCK }
187 277
188The design of crossfire+ requires that the main coro ($Coro::main) is 278The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 279always able to handle events or runnable, as crossfire+ is only partly
197=cut 287=cut
198 288
199sub sync_job(&) { 289sub sync_job(&) {
200 my ($job) = @_; 290 my ($job) = @_;
201 291
202 my $busy = 1;
203 my @res;
204
205 my $coro = Coro::async {
206 @res = eval { $job->() };
207 warn $@ if $@;
208 undef $busy;
209 };
210
211 if ($Coro::current == $Coro::main) { 292 if ($Coro::current == $Coro::main) {
293 # this is the main coro, too bad, we have to block
294 # till the operation succeeds, freezing the server :/
295
212 # TODO: use suspend/resume instead 296 # TODO: use suspend/resume instead
213 local $FREEZE = 1; 297 # (but this is cancel-safe)
298 my $freeze_guard = freeze_mainloop;
299
300 my $busy = 1;
301 my @res;
302
303 (async {
304 @res = eval { $job->() };
305 warn $@ if $@;
306 undef $busy;
214 $coro->prio (Coro::PRIO_MAX); 307 })->prio (Coro::PRIO_MAX);
308
215 while ($busy) { 309 while ($busy) {
216 Coro::cede_notself; 310 Coro::cede or Event::one_event;
217 Event::one_event unless Coro::nready;
218 } 311 }
312
313 wantarray ? @res : $res[0]
219 } else { 314 } else {
220 $coro->join; 315 # we are in another coroutine, how wonderful, everything just works
316
317 $job->()
221 } 318 }
222
223 wantarray ? @res : $res[0]
224} 319}
225 320
226=item $coro = cf::coro { BLOCK } 321=item $coro = cf::async_ext { BLOCK }
227 322
228Creates and returns a new coro. This coro is automcatially being canceled 323Like async, but this coro is automatically being canceled when the
229when the extension calling this is being unloaded. 324extension calling this is being unloaded.
230 325
231=cut 326=cut
232 327
233sub coro(&) { 328sub async_ext(&) {
234 my $cb = shift; 329 my $cb = shift;
235 330
236 my $coro; $coro = async { 331 my $coro = &Coro::async ($cb);
237 eval {
238 $cb->();
239 };
240 warn $@ if $@;
241 };
242 332
243 $coro->on_destroy (sub { 333 $coro->on_destroy (sub {
244 delete $EXT_CORO{$coro+0}; 334 delete $EXT_CORO{$coro+0};
245 }); 335 });
246 $EXT_CORO{$coro+0} = $coro; 336 $EXT_CORO{$coro+0} = $coro;
252 my $runtime = cf::localdir . "/runtime"; 342 my $runtime = cf::localdir . "/runtime";
253 343
254 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 344 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255 or return; 345 or return;
256 346
257 my $value = $cf::RUNTIME; 347 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
258 (aio_write $fh, 0, (length $value), $value, 0) <= 0 348 (aio_write $fh, 0, (length $value), $value, 0) <= 0
259 and return; 349 and return;
260 350
261 aio_fsync $fh 351 aio_fsync $fh
262 and return; 352 and return;
276 366
277############################################################################# 367#############################################################################
278 368
279package cf::path; 369package cf::path;
280 370
371use overload
372 '""' => \&as_string;
373
374# used to convert map paths into valid unix filenames by repalcing / by ∕
375our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377sub register {
378 my ($pkg, $prefix) = @_;
379
380 $EXT_MAP{$prefix} = $pkg;
381}
382
281sub new { 383sub new {
282 my ($class, $path, $base) = @_; 384 my ($class, $path, $base) = @_;
283 385
284 $path = $path->as_string if ref $path; 386 return $path if ref $path;
285 387
286 my $self = bless { }, $class; 388 my $self = {};
287 389
288 if ($path =~ s{^\?random/}{}) { 390 # {... are special paths that are not being touched
289 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 391 # ?xxx/... are special absolute paths
290 $self->{random} = cf::from_json $data; 392 # ?random/... random maps
393 # /! non-realised random map exit
394 # /... normal maps
395 # ~/... per-player maps without a specific player (DO NOT USE)
396 # ~user/... per-player map of a specific user
397
398 $path =~ s/$PATH_SEP/\//go;
399
400 if ($path =~ /^{/) {
401 # fine as it is
291 } else { 402 } else {
292 if ($path =~ s{^~([^/]+)?}{}) { 403 if ($path =~ s{^~([^/]+)?}{}) {
404 # ~user
293 $self->{user_rel} = 1; 405 $self->{user_rel} = 1;
294 406
295 if (defined $1) { 407 if (defined $1) {
296 $self->{user} = $1; 408 $self->{user} = $1;
297 } elsif ($base =~ m{^~([^/]+)/}) { 409 } elsif ($base =~ m{^~([^/]+)/}) {
298 $self->{user} = $1; 410 $self->{user} = $1;
299 } else { 411 } else {
300 warn "cannot resolve user-relative path without user <$path,$base>\n"; 412 warn "cannot resolve user-relative path without user <$path,$base>\n";
301 } 413 }
414 } elsif ($path =~ s{^\?([^/]+)/}{}) {
415 # ?...
416 $self->{ext} = $1;
417 if (my $ext = $EXT_MAP{$1}) {
418 bless $self, $ext;
419 }
302 } elsif ($path =~ /^\//) { 420 } elsif ($path =~ /^\//) {
421 # /...
303 # already absolute 422 # already absolute
304 } else { 423 } else {
424 # relative
305 $base =~ s{[^/]+/?$}{}; 425 $base =~ s{[^/]+/?$}{};
306 return $class->new ("$base/$path"); 426 return $class->new ("$base/$path");
307 } 427 }
308 428
309 for ($path) { 429 for ($path) {
312 } 432 }
313 } 433 }
314 434
315 $self->{path} = $path; 435 $self->{path} = $path;
316 436
437 if ("HASH" eq ref $self) {
438 bless $self, $class;
439 } else {
440 $self->init;
441 }
442
443 for my $ext (values %EXT_MAP) {
444 if (my $subst = $ext->substitute ($self)) {
445 return $subst;
446 }
447 }
448
317 $self 449 $self
450}
451
452sub init {
453 # nop
454}
455
456sub substitute {
457 ()
318} 458}
319 459
320# the name / primary key / in-game path 460# the name / primary key / in-game path
321sub as_string { 461sub as_string {
322 my ($self) = @_; 462 my ($self) = @_;
323 463
324 $self->{user_rel} ? "~$self->{user}$self->{path}" 464 $self->{user_rel} ? "~$self->{user}$self->{path}"
325 : $self->{random} ? "?random/$self->{path}" 465 : $self->{ext} ? "?$self->{ext}/$self->{path}"
326 : $self->{path} 466 : $self->{path}
327} 467}
328 468
329# the displayed name, this is a one way mapping 469# the displayed name, this is a one way mapping
330sub visible_name { 470sub visible_name {
331 my ($self) = @_; 471 &as_string
332
333# if (my $rmp = $self->{random}) {
334# # todo: be more intelligent about this
335# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336# } else {
337 $self->as_string
338# }
339} 472}
340 473
341# escape the /'s in the path 474# escape the /'s in the path
342sub _escaped_path { 475sub _escaped_path {
343 # ∕ is U+2215
344 (my $path = $_[0]{path}) =~ s/\///g; 476 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
345 $path 478 $path
346} 479}
347 480
348# the original (read-only) location 481# the original (read-only) location
349sub load_path { 482sub load_path {
354 487
355# the temporary/swap location 488# the temporary/swap location
356sub save_path { 489sub save_path {
357 my ($self) = @_; 490 my ($self) = @_;
358 491
492 $self->{user_rel}
359 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path 493 ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path 494 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362} 495}
363 496
364# the unique path, might be eq to save_path 497# the unique path, undef == no special unique path
365sub uniq_path { 498sub uniq_path {
366 my ($self) = @_; 499 my ($self) = @_;
367 500
368 $self->{user_rel} || $self->{random} 501 $self->{user_rel} || $self->{ext}
369 ? undef 502 ? undef
370 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path 503 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371} 504}
372 505
373# return random map parameters, or undef 506sub customise_for {
374sub random_map_params {
375 my ($self) = @_; 507 my ($self, $map, $ob) = @_;
376 508
377 $self->{random} 509 if ($map->per_player) {
510 return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511 }
512
513 $map
378} 514}
379 515
380# this is somewhat ugly, but style maps do need special treatment 516# this is somewhat ugly, but style maps do need special treatment
381sub is_style_map { 517sub is_style_map {
382 $_[0]{path} =~ m{^/styles/} 518 $_[0]{path} =~ m{^/styles/}
519}
520
521sub load_orig {
522 my ($self) = @_;
523
524 &cf::map::load_map_header ($self->load_path)
525}
526
527sub load_temp {
528 my ($self) = @_;
529
530 &cf::map::load_map_header ($self->save_path)
531}
532
533sub unlink_save {
534 my ($self) = @_;
535
536 utf8::encode (my $save = $self->save_path);
537 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
383} 539}
384 540
385package cf; 541package cf;
386 542
387############################################################################# 543#############################################################################
798 or return; 954 or return;
799 955
800 unless (aio_stat "$filename.pst") { 956 unless (aio_stat "$filename.pst") {
801 (aio_load "$filename.pst", $av) >= 0 957 (aio_load "$filename.pst", $av) >= 0
802 or return; 958 or return;
803 $av = eval { (Storable::thaw <$av>)->{objs} }; 959 $av = eval { (Storable::thaw $av)->{objs} };
804 } 960 }
805 961
962 warn sprintf "loading %s (%d)\n",
963 $filename, length $data, scalar @{$av || []};#d#
806 return ($data, $av); 964 return ($data, $av);
807} 965}
808 966
809############################################################################# 967#############################################################################
810# command handling &c 968# command handling &c
835=cut 993=cut
836 994
837sub register_extcmd { 995sub register_extcmd {
838 my ($name, $cb) = @_; 996 my ($name, $cb) = @_;
839 997
840 my $caller = caller;
841 #warn "registering extcmd '$name' to '$caller'";
842
843 $EXTCMD{$name} = [$cb, $caller]; 998 $EXTCMD{$name} = $cb;
844} 999}
845 1000
846cf::player->attach ( 1001cf::player->attach (
847 on_command => sub { 1002 on_command => sub {
848 my ($pl, $name, $params) = @_; 1003 my ($pl, $name, $params) = @_;
861 1016
862 my $msg = eval { from_json $buf }; 1017 my $msg = eval { from_json $buf };
863 1018
864 if (ref $msg) { 1019 if (ref $msg) {
865 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1020 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866 if (my %reply = $cb->[0]->($pl, $msg)) { 1021 if (my %reply = $cb->($pl, $msg)) {
867 $pl->ext_reply ($msg->{msgid}, %reply); 1022 $pl->ext_reply ($msg->{msgid}, %reply);
868 } 1023 }
869 } 1024 }
870 } else { 1025 } else {
871 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1026 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
873 1028
874 cf::override; 1029 cf::override;
875 }, 1030 },
876); 1031);
877 1032
878sub register {
879 my ($base, $pkg) = @_;
880
881 #TODO
882}
883
884sub load_extension { 1033sub load_extension {
885 my ($path) = @_; 1034 my ($path) = @_;
886 1035
887 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1036 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
888 my $base = $1; 1037 my $base = $1;
889 my $pkg = $1; 1038 my $pkg = $1;
890 $pkg =~ s/[^[:word:]]/_/g; 1039 $pkg =~ s/[^[:word:]]/_/g;
891 $pkg = "ext::$pkg"; 1040 $pkg = "ext::$pkg";
892 1041
893 warn "loading '$path' into '$pkg'\n"; 1042 warn "... loading '$path' into '$pkg'\n";
894 1043
895 open my $fh, "<:utf8", $path 1044 open my $fh, "<:utf8", $path
896 or die "$path: $!"; 1045 or die "$path: $!";
897 1046
898 my $source = 1047 my $source =
903 1052
904 eval $source 1053 eval $source
905 or die $@ ? "$path: $@\n" 1054 or die $@ ? "$path: $@\n"
906 : "extension disabled.\n"; 1055 : "extension disabled.\n";
907 1056
908 push @exts, $pkg; 1057 push @EXTS, $pkg;
909 $ext_pkg{$base} = $pkg;
910
911# no strict 'refs';
912# @{"$pkg\::ISA"} = ext::;
913
914 register $base, $pkg;
915}
916
917sub unload_extension {
918 my ($pkg) = @_;
919
920 warn "removing extension $pkg\n";
921
922 # remove hooks
923 #TODO
924# for my $idx (0 .. $#PLUGIN_EVENT) {
925# delete $hook[$idx]{$pkg};
926# }
927
928 # remove commands
929 for my $name (keys %COMMAND) {
930 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932 if (@cb) {
933 $COMMAND{$name} = \@cb;
934 } else {
935 delete $COMMAND{$name};
936 }
937 }
938
939 # remove extcmds
940 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941 delete $EXTCMD{$name};
942 }
943
944 if (my $cb = $pkg->can ("unload")) {
945 eval {
946 $cb->($pkg);
947 1
948 } or warn "$pkg unloaded, but with errors: $@";
949 }
950
951 Symbol::delete_package $pkg;
952} 1058}
953 1059
954sub load_extensions { 1060sub load_extensions {
955 for my $ext (<$LIBDIR/*.ext>) { 1061 for my $ext (<$LIBDIR/*.ext>) {
956 next unless -r $ext; 1062 next unless -r $ext;
974}; 1080};
975 1081
976cf::map->attach (prio => -10000, package => cf::mapsupport::); 1082cf::map->attach (prio => -10000, package => cf::mapsupport::);
977 1083
978############################################################################# 1084#############################################################################
979# load/save perl data associated with player->ob objects
980
981sub all_objects(@) {
982 @_, map all_objects ($_->inv), @_
983}
984
985# TODO: compatibility cruft, remove when no longer needed
986cf::player->attach (
987 on_load => sub {
988 my ($pl, $path) = @_;
989
990 for my $o (all_objects $pl->ob) {
991 if (my $value = $o->get_ob_key_value ("_perl_data")) {
992 $o->set_ob_key_value ("_perl_data");
993
994 %$o = %{ Storable::thaw pack "H*", $value };
995 }
996 }
997 },
998);
999
1000#############################################################################
1001 1085
1002=head2 CORE EXTENSIONS 1086=head2 CORE EXTENSIONS
1003 1087
1004Functions and methods that extend core crossfire objects. 1088Functions and methods that extend core crossfire objects.
1005 1089
1090=cut
1091
1092package cf::player;
1093
1094use Coro::AIO;
1095
1006=head3 cf::player 1096=head3 cf::player
1007 1097
1008=over 4 1098=over 4
1009 1099
1010=item cf::player::exists $login 1100=item cf::player::find $login
1011 1101
1012Returns true when the given account exists. 1102Returns the given player object, loading it if necessary (might block).
1013 1103
1014=cut 1104=cut
1015 1105
1016sub cf::player::exists($) { 1106sub playerdir($) {
1017 cf::player::find $_[0] 1107 cf::localdir
1018 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1108 . "/"
1109 . cf::playerdir
1110 . "/"
1111 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1112}
1113
1114sub path($) {
1115 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116
1117 (playerdir $login) . "/$login.pl"
1118}
1119
1120sub find_active($) {
1121 $cf::PLAYER{$_[0]}
1122 and $cf::PLAYER{$_[0]}->active
1123 and $cf::PLAYER{$_[0]}
1124}
1125
1126sub exists($) {
1127 my ($login) = @_;
1128
1129 $cf::PLAYER{$login}
1130 or cf::sync_job { !aio_stat $login }
1131}
1132
1133sub find($) {
1134 return $cf::PLAYER{$_[0]} || do {
1135 my $login = $_[0];
1136
1137 my $guard = cf::lock_acquire "user_find:$login";
1138
1139 $cf::PLAYER{$_[0]} || do {
1140 my $pl = load_pl path $login
1141 or return;
1142 $cf::PLAYER{$login} = $pl
1143 }
1144 }
1145}
1146
1147sub save($) {
1148 my ($pl) = @_;
1149
1150 return if $pl->{deny_save};
1151
1152 my $path = path $pl;
1153 my $guard = cf::lock_acquire "user_save:$path";
1154
1155 return if $pl->{deny_save};
1156
1157 aio_mkdir playerdir $pl, 0770;
1158 $pl->{last_save} = $cf::RUNTIME;
1159
1160 $pl->save_pl ($path);
1161 Coro::cede;
1162}
1163
1164sub new($) {
1165 my ($login) = @_;
1166
1167 my $self = create;
1168
1169 $self->ob->name ($login);
1170 $self->{deny_save} = 1;
1171
1172 $cf::PLAYER{$login} = $self;
1173
1174 $self
1175}
1176
1177=item $pl->quit_character
1178
1179Nukes the player without looking back. If logged in, the connection will
1180be destroyed. May block for a long time.
1181
1182=cut
1183
1184sub quit_character {
1185 my ($pl) = @_;
1186
1187 $pl->{deny_save} = 1;
1188 $pl->password ("*"); # this should lock out the player until we nuked the dir
1189
1190 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1191 $pl->deactivate;
1192 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1193 $pl->ns->destroy if $pl->ns;
1194
1195 my $path = playerdir $pl;
1196 my $temp = "$path~$cf::RUNTIME~deleting~";
1197 aio_rename $path, $temp;
1198 delete $cf::PLAYER{$pl->ob->name};
1199 $pl->destroy;
1200 IO::AIO::aio_rmtree $temp;
1201}
1202
1203=item cf::player::list_logins
1204
1205Returns am arrayref of all valid playernames in the system, can take a
1206while and may block, so not sync_job-capable, ever.
1207
1208=cut
1209
1210sub list_logins {
1211 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1212 or return [];
1213
1214 my @logins;
1215
1216 for my $login (@$dirs) {
1217 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1218 aio_read $fh, 0, 512, my $buf, 0 or next;
1219 $buf !~ /^password -------------$/m or next; # official not-valid tag
1220
1221 utf8::decode $login;
1222 push @logins, $login;
1223 }
1224
1225 \@logins
1226}
1227
1228=item $player->maps
1229
1230Returns an arrayref of cf::path's of all maps that are private for this
1231player. May block.
1232
1233=cut
1234
1235sub maps($) {
1236 my ($pl) = @_;
1237
1238 my $files = aio_readdir playerdir $pl
1239 or return;
1240
1241 my @paths;
1242
1243 for (@$files) {
1244 utf8::decode $_;
1245 next if /\.(?:pl|pst)$/;
1246 next unless /^$PATH_SEP/o;
1247
1248 push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249 }
1250
1251 \@paths
1019} 1252}
1020 1253
1021=item $player->ext_reply ($msgid, $msgtype, %msg) 1254=item $player->ext_reply ($msgid, $msgtype, %msg)
1022 1255
1023Sends an ext reply to the player. 1256Sends an ext reply to the player.
1024 1257
1025=cut 1258=cut
1026 1259
1027sub cf::player::ext_reply($$$%) { 1260sub ext_reply($$$%) {
1028 my ($self, $id, %msg) = @_; 1261 my ($self, $id, %msg) = @_;
1029 1262
1030 $msg{msgid} = $id; 1263 $msg{msgid} = $id;
1031 1264
1032 $self->send ("ext " . to_json \%msg); 1265 $self->send ("ext " . cf::to_json \%msg);
1033} 1266}
1267
1268package cf;
1034 1269
1035=back 1270=back
1036 1271
1037 1272
1038=head3 cf::map 1273=head3 cf::map
1044package cf::map; 1279package cf::map;
1045 1280
1046use Fcntl; 1281use Fcntl;
1047use Coro::AIO; 1282use Coro::AIO;
1048 1283
1049our $MAX_RESET = 7200; 1284our $MAX_RESET = 3600;
1050our $DEFAULT_RESET = 3600; 1285our $DEFAULT_RESET = 3000;
1051$MAX_RESET = 10;#d#
1052$DEFAULT_RESET = 10;#d#
1053 1286
1054sub generate_random_map { 1287sub generate_random_map {
1055 my ($path, $rmp) = @_; 1288 my ($path, $rmp) = @_;
1056 1289
1057 # mit "rum" bekleckern, nicht 1290 # mit "rum" bekleckern, nicht
1058 cf::map::_create_random_map 1291 cf::map::_create_random_map (
1059 $path, 1292 $path,
1060 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1293 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1294 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1295 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063 $rmp->{exit_on_final_map}, 1296 $rmp->{exit_on_final_map},
1065 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1298 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1299 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1300 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1301 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1302 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070 (cf::region::find $rmp->{region}) 1303 (cf::region::find $rmp->{region}), $rmp->{custom}
1304 )
1071} 1305}
1072 1306
1073# and all this just because we cannot iterate over 1307# and all this just because we cannot iterate over
1074# all maps in C++... 1308# all maps in C++...
1075sub change_all_map_light { 1309sub change_all_map_light {
1076 my ($change) = @_; 1310 my ($change) = @_;
1077 1311
1078 $_->change_map_light ($change) for values %cf::MAP; 1312 $_->change_map_light ($change)
1313 for grep $_->outdoor, values %cf::MAP;
1079} 1314}
1080 1315
1081sub try_load_header($) { 1316sub load_map_header($) {
1082 my ($path) = @_; 1317 my ($path) = @_;
1083 1318
1084 utf8::encode $path; 1319 utf8::encode $path;
1085 aio_open $path, O_RDONLY, 0 1320 aio_open $path, O_RDONLY, 0
1086 or return; 1321 or return;
1087 1322
1088 my $map = cf::map::new 1323 my $map = cf::map::new
1089 or return; 1324 or return;
1090 1325
1326 # for better error messages only, will be overwritten later
1327 $map->path ($path);
1328
1091 $map->load_header ($path) 1329 $map->load_header ($path)
1092 or return; 1330 or return;
1093 1331
1094 $map->{load_path} = $path; 1332 $map->{load_path} = $path;
1095 use Data::Dumper; warn Dumper $map;#d#
1096 1333
1097 $map 1334 $map
1098} 1335}
1099 1336
1337sub find;
1100sub find_map { 1338sub find {
1101 my ($path, $origin) = @_; 1339 my ($path, $origin) = @_;
1102 1340
1103 #warn "find_map<$path,$origin>\n";#d# 1341 #warn "find<$path,$origin>\n";#d#
1104 1342
1105 $path = ref $path ? $path : new cf::path $path, $origin && $origin->path; 1343 $path = new cf::path $path, $origin && $origin->path;
1106 my $key = $path->as_string; 1344 my $key = $path->as_string;
1107 1345
1346 cf::lock_wait "map_find:$key";
1347
1108 $cf::MAP{$key} || do { 1348 $cf::MAP{$key} || do {
1349 my $guard = cf::lock_acquire "map_find:$key";
1350
1109 # do it the slow way 1351 # do it the slow way
1110 my $map = try_load_header $path->save_path; 1352 my $map = $path->load_temp;
1353
1354 Coro::cede;
1111 1355
1112 if ($map) { 1356 if ($map) {
1357 $map->last_access ((delete $map->{last_access})
1358 || $cf::RUNTIME); #d#
1113 # safety 1359 # safety
1114 $map->{instantiate_time} = $cf::RUNTIME 1360 $map->{instantiate_time} = $cf::RUNTIME
1115 if $map->{instantiate_time} > $cf::RUNTIME; 1361 if $map->{instantiate_time} > $cf::RUNTIME;
1116 } else { 1362 } else {
1117 if (my $rmp = $path->random_map_params) { 1363 $map = $path->load_orig
1118 $map = generate_random_map $key, $rmp;
1119 } else {
1120 $map = try_load_header $path->load_path;
1121 }
1122
1123 $map or return; 1364 or return;
1124 1365
1125 $map->{load_original} = 1; 1366 $map->{load_original} = 1;
1126 $map->{instantiate_time} = $cf::RUNTIME; 1367 $map->{instantiate_time} = $cf::RUNTIME;
1368 $map->last_access ($cf::RUNTIME);
1127 $map->instantiate; 1369 $map->instantiate;
1128 1370
1129 # per-player maps become, after loading, normal maps 1371 # per-player maps become, after loading, normal maps
1130 $map->per_player (0) if $path->{user_rel}; 1372 $map->per_player (0) if $path->{user_rel};
1131 } 1373 }
1132 1374
1133 $map->path ($key); 1375 $map->path ($key);
1134 $map->{path} = $path; 1376 $map->{path} = $path;
1135 $map->last_access ($cf::RUNTIME); 1377 $map->{last_save} = $cf::RUNTIME;
1136 1378
1379 Coro::cede;
1380
1137 $map->reset if $map->should_reset; 1381 if ($map->should_reset) {
1382 $map->reset;
1383 undef $guard;
1384 $map = find $path
1385 or return;
1386 }
1138 1387
1139 $cf::MAP{$key} = $map 1388 $cf::MAP{$key} = $map
1140 } 1389 }
1141} 1390}
1142 1391
1143sub load { 1392sub load {
1144 my ($self) = @_; 1393 my ($self) = @_;
1145 1394
1395 my $path = $self->{path};
1396 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1397
1146 return if $self->in_memory != cf::MAP_SWAPPED; 1398 return if $self->in_memory != cf::MAP_SWAPPED;
1147 1399
1148 $self->in_memory (cf::MAP_LOADING); 1400 $self->in_memory (cf::MAP_LOADING);
1149
1150 my $path = $self->{path};
1151 1401
1152 $self->alloc; 1402 $self->alloc;
1153 $self->load_objects ($self->{load_path}, 1) 1403 $self->load_objects ($self->{load_path}, 1)
1154 or return; 1404 or return;
1155 1405
1156 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original}; 1406 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407 if delete $self->{load_original};
1157 1408
1158 if (my $uniq = $path->uniq_path) { 1409 if (my $uniq = $path->uniq_path) {
1159 utf8::encode $uniq; 1410 utf8::encode $uniq;
1160 if (aio_open $uniq, O_RDONLY, 0) { 1411 if (aio_open $uniq, O_RDONLY, 0) {
1161 $self->clear_unique_items; 1412 $self->clear_unique_items;
1162 $self->load_objects ($uniq, 0); 1413 $self->load_objects ($uniq, 0);
1163 } 1414 }
1164 } 1415 }
1165 1416
1417 Coro::cede;
1418
1166 # now do the right thing for maps 1419 # now do the right thing for maps
1167 $self->link_multipart_objects; 1420 $self->link_multipart_objects;
1168 1421
1169 if ($self->{path}->is_style_map) { 1422 if ($self->{path}->is_style_map) {
1170 $self->{deny_save} = 1; 1423 $self->{deny_save} = 1;
1171 $self->{deny_reset} = 1; 1424 $self->{deny_reset} = 1;
1172 } else { 1425 } else {
1426 $self->decay_objects;
1173 $self->fix_auto_apply; 1427 $self->fix_auto_apply;
1174 $self->decay_objects;
1175 $self->update_buttons; 1428 $self->update_buttons;
1176 $self->set_darkness_map; 1429 $self->set_darkness_map;
1177 $self->difficulty ($self->estimate_difficulty) 1430 $self->difficulty ($self->estimate_difficulty)
1178 unless $self->difficulty; 1431 unless $self->difficulty;
1179 $self->activate; 1432 $self->activate;
1180 } 1433 }
1181 1434
1435 Coro::cede;
1436
1182 $self->in_memory (cf::MAP_IN_MEMORY); 1437 $self->in_memory (cf::MAP_IN_MEMORY);
1183} 1438}
1184 1439
1185sub load_map_sync { 1440# find and load all maps in the 3x3 area around a map
1441sub load_diag {
1442 my ($map) = @_;
1443
1444 my @diag; # diagonal neighbours
1445
1446 for (0 .. 3) {
1447 my $neigh = $map->tile_path ($_)
1448 or next;
1449 $neigh = find $neigh, $map
1450 or next;
1451 $neigh->load;
1452
1453 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1454 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1455 }
1456
1457 for (@diag) {
1458 my $neigh = find @$_
1459 or next;
1460 $neigh->load;
1461 }
1462}
1463
1464sub find_sync {
1186 my ($path, $origin) = @_; 1465 my ($path, $origin) = @_;
1187 1466
1188 #warn "load_map_sync<$path, $origin>\n";#d# 1467 cf::sync_job { find $path, $origin }
1468}
1189 1469
1190 cf::sync_job { 1470sub do_load_sync {
1191 my $map = cf::map::find_map $path, $origin 1471 my ($map) = @_;
1472
1473 cf::sync_job { $map->load };
1474}
1475
1476our %MAP_PREFETCH;
1477our $MAP_PREFETCHER = Coro::async {
1478 while () {
1479 while (%MAP_PREFETCH) {
1480 my $key = each %MAP_PREFETCH
1192 or return; 1481 or next;
1482 my $path = delete $MAP_PREFETCH{$key};
1483
1484 my $map = find $path
1485 or next;
1193 $map->load; 1486 $map->load;
1194 $map 1487 }
1488 Coro::schedule;
1195 } 1489 }
1490};
1491
1492sub find_async {
1493 my ($path, $origin) = @_;
1494
1495 $path = new cf::path $path, $origin && $origin->path;
1496 my $key = $path->as_string;
1497
1498 if (my $map = $cf::MAP{$key}) {
1499 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500 }
1501
1502 $MAP_PREFETCH{$key} = $path;
1503 $MAP_PREFETCHER->ready;
1504
1505 ()
1196} 1506}
1197 1507
1198sub save { 1508sub save {
1199 my ($self) = @_; 1509 my ($self) = @_;
1200 1510
1511 my $lock = cf::lock_acquire "map_data:" . $self->path;
1512
1513 $self->{last_save} = $cf::RUNTIME;
1514
1515 return unless $self->dirty;
1516
1201 my $save = $self->{path}->save_path; utf8::encode $save; 1517 my $save = $self->{path}->save_path; utf8::encode $save;
1202 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1518 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203 1519
1204 $self->{last_save} = $cf::RUNTIME;
1205
1206 return unless $self->dirty;
1207
1208 $self->{load_path} = $save; 1520 $self->{load_path} = $save;
1209 1521
1210 return if $self->{deny_save}; 1522 return if $self->{deny_save};
1211 1523
1212 warn "saving map ", $self->path; 1524 local $self->{last_access} = $self->last_access;#d#
1525
1526 cf::async {
1527 $_->contr->save for $self->players;
1528 };
1213 1529
1214 if ($uniq) { 1530 if ($uniq) {
1215 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1531 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216 $self->save_objects ($uniq, cf::IO_UNIQUES); 1532 $self->save_objects ($uniq, cf::IO_UNIQUES);
1217 } else { 1533 } else {
1220} 1536}
1221 1537
1222sub swap_out { 1538sub swap_out {
1223 my ($self) = @_; 1539 my ($self) = @_;
1224 1540
1541 # save first because save cedes
1542 $self->save;
1543
1544 my $lock = cf::lock_acquire "map_data:" . $self->path;
1545
1225 return if $self->players; 1546 return if $self->players;
1226 return if $self->in_memory != cf::MAP_IN_MEMORY; 1547 return if $self->in_memory != cf::MAP_IN_MEMORY;
1227 return if $self->{deny_save}; 1548 return if $self->{deny_save};
1228 1549
1229 $self->save;
1230 $self->clear; 1550 $self->clear;
1231 $self->in_memory (cf::MAP_SWAPPED); 1551 $self->in_memory (cf::MAP_SWAPPED);
1232} 1552}
1233 1553
1554sub reset_at {
1555 my ($self) = @_;
1556
1557 # TODO: safety, remove and allow resettable per-player maps
1558 return 1e99 if $self->{path}{user_rel};
1559 return 1e99 if $self->{deny_reset};
1560
1561 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563
1564 $time + $to
1565}
1566
1234sub should_reset { 1567sub should_reset {
1235 my ($map) = @_;
1236
1237 # TODO: safety, remove and allow resettable per-player maps
1238 return if $map->{path}{user_rel};#d#
1239 return if $map->{deny_reset};
1240 #return unless $map->reset_timeout;
1241
1242 my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243 my $to = $map->reset_timeout || $DEFAULT_RESET;
1244 $to = $MAX_RESET if $to > $MAX_RESET;
1245
1246 $time + $to < $cf::RUNTIME
1247}
1248
1249sub unlink_save {
1250 my ($self) = @_; 1568 my ($self) = @_;
1251 1569
1252 utf8::encode (my $save = $self->{path}->save_path); 1570 $self->reset_at <= $cf::RUNTIME
1253 aioreq_pri 3; IO::AIO::aio_unlink $save; 1571}
1254 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst"; 1572
1573sub rename {
1574 my ($self, $new_path) = @_;
1575
1576 $self->{path}->unlink_save;
1577
1578 delete $cf::MAP{$self->path};
1579 $self->{path} = new cf::path $new_path;
1580 $self->path ($self->{path}->as_string);
1581 $cf::MAP{$self->path} = $self;
1582
1583 $self->save;
1255} 1584}
1256 1585
1257sub reset { 1586sub reset {
1258 my ($self) = @_; 1587 my ($self) = @_;
1259 1588
1589 my $lock = cf::lock_acquire "map_data:" . $self->path;
1590
1260 return if $self->players; 1591 return if $self->players;
1261 return if $self->{path}{user_rel};#d# 1592 return if $self->{path}{user_rel};#d#
1262 1593
1263 warn "resetting map ", $self->path;#d# 1594 warn "resetting map ", $self->path;#d#
1264 1595
1265 delete $cf::MAP{$self->path}; 1596 delete $cf::MAP{$self->path};
1266 1597
1267 $_->clear_links_to ($self) for values %cf::MAP; 1598 $_->clear_links_to ($self) for values %cf::MAP;
1268 1599
1269 $self->unlink_save; 1600 $self->{path}->unlink_save;
1270 $self->destroy; 1601 $self->destroy;
1271} 1602}
1272 1603
1273sub customise_for { 1604my $nuke_counter = "aaaa";
1274 my ($map, $ob) = @_;
1275 1605
1276 if ($map->per_player) { 1606sub nuke {
1277 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1607 my ($self) = @_;
1278 }
1279 1608
1280 $map 1609 $self->{deny_save} = 1;
1610 $self->reset_timeout (1);
1611 $self->rename ("{nuke}/" . ($nuke_counter++));
1612 $self->reset; # polite request, might not happen
1281} 1613}
1282 1614
1283sub emergency_save { 1615=item cf::map::unique_maps
1284 local $cf::FREEZE = 1;
1285 1616
1286 warn "enter emergency map save\n"; 1617Returns an arrayref of cf::path's of all shared maps that have
1618instantiated unique items. May block.
1287 1619
1288 cf::sync_job { 1620=cut
1289 warn "begin emergency map save\n"; 1621
1290 $_->save for values %cf::MAP; 1622sub unique_maps() {
1623 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1624 or return;
1625
1626 my @paths;
1627
1628 for (@$files) {
1629 utf8::decode $_;
1630 next if /\.pst$/;
1631 next unless /^$PATH_SEP/o;
1632
1633 push @paths, new cf::path $_;
1291 }; 1634 }
1292 1635
1293 warn "end emergency map save\n"; 1636 \@paths
1294} 1637}
1295 1638
1296package cf; 1639package cf;
1297 1640
1298=back 1641=back
1299 1642
1643=head3 cf::object
1644
1645=cut
1646
1647package cf::object;
1648
1649=over 4
1650
1651=item $ob->inv_recursive
1652
1653Returns the inventory of the object _and_ their inventories, recursively.
1654
1655=cut
1656
1657sub inv_recursive_;
1658sub inv_recursive_ {
1659 map { $_, inv_recursive_ $_->inv } @_
1660}
1661
1662sub inv_recursive {
1663 inv_recursive_ inv $_[0]
1664}
1665
1666package cf;
1667
1668=back
1300 1669
1301=head3 cf::object::player 1670=head3 cf::object::player
1302 1671
1303=over 4 1672=over 4
1304 1673
1340 (ref $cf::CFG{"may_$access"} 1709 (ref $cf::CFG{"may_$access"}
1341 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1710 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342 : $cf::CFG{"may_$access"}) 1711 : $cf::CFG{"may_$access"})
1343} 1712}
1344 1713
1714=item $player_object->enter_link
1715
1716Freezes the player and moves him/her to a special map (C<{link}>).
1717
1718The player should be reaosnably safe there for short amounts of time. You
1719I<MUST> call C<leave_link> as soon as possible, though.
1720
1721=item $player_object->leave_link ($map, $x, $y)
1722
1723Moves the player out of the specila link map onto the given map. If the
1724map is not valid (or omitted), the player will be moved back to the
1725location he/she was before the call to C<enter_link>, or, if that fails,
1726to the emergency map position.
1727
1728Might block.
1729
1730=cut
1731
1345sub cf::object::player::enter_link { 1732sub cf::object::player::enter_link {
1346 my ($self) = @_; 1733 my ($self) = @_;
1347 1734
1735 $self->deactivate_recursive;
1736
1348 return if $self->map == $LINK_MAP; 1737 return if $self->map == $LINK_MAP;
1349 1738
1350 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1739 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351 if $self->map; 1740 if $self->map;
1352 1741
1353 $self->enter_map ($LINK_MAP, 20, 20); 1742 $self->enter_map ($LINK_MAP, 20, 20);
1354 $self->deactivate_recursive;
1355} 1743}
1356 1744
1357sub cf::object::player::leave_link { 1745sub cf::object::player::leave_link {
1358 my ($self, $map, $x, $y) = @_; 1746 my ($self, $map, $x, $y) = @_;
1359 1747
1360 my $link_pos = delete $self->{_link_pos}; 1748 my $link_pos = delete $self->{_link_pos};
1361 1749
1362 unless ($map) { 1750 unless ($map) {
1363 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365 # restore original map position 1751 # restore original map position
1366 ($map, $x, $y) = @{ $link_pos || [] }; 1752 ($map, $x, $y) = @{ $link_pos || [] };
1367 $map = cf::map::find_map $map; 1753 $map = cf::map::find $map;
1368 1754
1369 unless ($map) { 1755 unless ($map) {
1370 ($map, $x, $y) = @$EMERGENCY_POSITION; 1756 ($map, $x, $y) = @$EMERGENCY_POSITION;
1371 $map = cf::map::find_map $map 1757 $map = cf::map::find $map
1372 or die "FATAL: cannot load emergency map\n"; 1758 or die "FATAL: cannot load emergency map\n";
1373 } 1759 }
1374 } 1760 }
1375 1761
1376 ($x, $y) = (-1, -1) 1762 ($x, $y) = (-1, -1)
1379 # use -1 or undef as default coordinates, not 0, 0 1765 # use -1 or undef as default coordinates, not 0, 0
1380 ($x, $y) = ($map->enter_x, $map->enter_y) 1766 ($x, $y) = ($map->enter_x, $map->enter_y)
1381 if $x <=0 && $y <= 0; 1767 if $x <=0 && $y <= 0;
1382 1768
1383 $map->load; 1769 $map->load;
1770 $map->load_diag;
1384 1771
1772 return unless $self->contr->active;
1385 $self->activate_recursive; 1773 $self->activate_recursive;
1386 $self->enter_map ($map, $x, $y); 1774 $self->enter_map ($map, $x, $y);
1387} 1775}
1388 1776
1777cf::player->attach (
1778 on_logout => sub {
1779 my ($pl) = @_;
1780
1781 # abort map switching before logout
1782 if ($pl->ob->{_link_pos}) {
1783 cf::sync_job {
1784 $pl->ob->leave_link
1785 };
1786 }
1787 },
1788 on_login => sub {
1789 my ($pl) = @_;
1790
1791 # try to abort aborted map switching on player login :)
1792 # should happen only on crashes
1793 if ($pl->ob->{_link_pos}) {
1794 $pl->ob->enter_link;
1795 (async {
1796 # we need this sleep as the login has a concurrent enter_exit running
1797 # and this sleep increases chances of the player not ending up in scorn
1798 $pl->ob->reply (undef,
1799 "There was an internal problem at your last logout, "
1800 . "the server will try to bring you to your intended destination in a second.",
1801 cf::NDI_RED);
1802 Coro::Timer::sleep 1;
1803 $pl->ob->leave_link;
1804 })->prio (2);
1805 }
1806 },
1807);
1808
1389=item $player_object->goto_map ($map, $x, $y) 1809=item $player_object->goto ($path, $x, $y)
1390 1810
1391=cut 1811=cut
1392 1812
1393sub cf::object::player::goto_map { 1813sub cf::object::player::goto {
1394 my ($self, $path, $x, $y) = @_; 1814 my ($self, $path, $x, $y) = @_;
1395 1815
1816 $path = new cf::path $path;
1817
1396 $self->enter_link; 1818 $self->enter_link;
1397 1819
1398 (Coro::async { 1820 (async {
1399 $path = new cf::path $path;
1400
1401 my $map = cf::map::find_map $path->as_string; 1821 my $map = cf::map::find $path->as_string;
1402 $map = $map->customise_for ($self) if $map; 1822 $map = $map->{path}->customise_for ($map, $self) if $map;
1403 1823
1404 warn "entering ", $map->path, " at ($x, $y)\n" 1824# warn "entering ", $map->path, " at ($x, $y)\n"
1405 if $map; 1825# if $map;
1826
1827 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406 1828
1407 $self->leave_link ($map, $x, $y); 1829 $self->leave_link ($map, $x, $y);
1408 })->prio (1); 1830 })->prio (1);
1409} 1831}
1410 1832
1463 1885
1464 return unless $self->type == cf::PLAYER; 1886 return unless $self->type == cf::PLAYER;
1465 1887
1466 $self->enter_link; 1888 $self->enter_link;
1467 1889
1468 (Coro::async { 1890 (async {
1891 $self->deactivate_recursive; # just to be sure
1469 unless (eval { 1892 unless (eval {
1470
1471 prepare_random_map $exit 1893 prepare_random_map $exit
1472 if $exit->slaying eq "/!"; 1894 if $exit->slaying eq "/!";
1473 1895
1474 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1896 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1897 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1476 1898
1477 1; 1899 1;
1478 }) { 1900 }) {
1479 $self->message ("Something went wrong deep within the crossfire server. " 1901 $self->message ("Something went wrong deep within the crossfire server. "
1480 . "I'll try to bring you back to the map you were before. " 1902 . "I'll try to bring you back to the map you were before. "
1481 . "Please report this to the dungeon master", 1903 . "Please report this to the dungeon master!",
1482 cf::NDI_UNIQUE | cf::NDI_RED); 1904 cf::NDI_UNIQUE | cf::NDI_RED);
1483 1905
1484 warn "ERROR in enter_exit: $@"; 1906 warn "ERROR in enter_exit: $@";
1485 $self->leave_link; 1907 $self->leave_link;
1486 } 1908 }
1537 on_reply => sub { 1959 on_reply => sub {
1538 my ($ns, $msg) = @_; 1960 my ($ns, $msg) = @_;
1539 1961
1540 # this weird shuffling is so that direct followup queries 1962 # this weird shuffling is so that direct followup queries
1541 # get handled first 1963 # get handled first
1542 my $queue = delete $ns->{query_queue}; 1964 my $queue = delete $ns->{query_queue}
1965 or return; # be conservative, not sure how that can happen, but we saw a crash here
1543 1966
1544 (shift @$queue)->[1]->($msg); 1967 (shift @$queue)->[1]->($msg);
1545 1968
1546 push @{ $ns->{query_queue} }, @$queue; 1969 push @{ $ns->{query_queue} }, @$queue;
1547 1970
1553 } 1976 }
1554 } 1977 }
1555 }, 1978 },
1556); 1979);
1557 1980
1558=item $client->coro (\&cb) 1981=item $client->async (\&cb)
1559 1982
1560Create a new coroutine, running the specified callback. The coroutine will 1983Create a new coroutine, running the specified callback. The coroutine will
1561be automatically cancelled when the client gets destroyed (e.g. on logout, 1984be automatically cancelled when the client gets destroyed (e.g. on logout,
1562or loss of connection). 1985or loss of connection).
1563 1986
1564=cut 1987=cut
1565 1988
1566sub cf::client::coro { 1989sub cf::client::async {
1567 my ($self, $cb) = @_; 1990 my ($self, $cb) = @_;
1568 1991
1569 my $coro; $coro = async { 1992 my $coro = &Coro::async ($cb);
1570 eval {
1571 $cb->();
1572 };
1573 warn $@ if $@;
1574 };
1575 1993
1576 $coro->on_destroy (sub { 1994 $coro->on_destroy (sub {
1577 delete $self->{_coro}{$coro+0}; 1995 delete $self->{_coro}{$coro+0};
1578 }); 1996 });
1579 1997
1751 2169
1752{ 2170{
1753 my $path = cf::localdir . "/database.pst"; 2171 my $path = cf::localdir . "/database.pst";
1754 2172
1755 sub db_load() { 2173 sub db_load() {
1756 warn "loading database $path\n";#d# remove later
1757 $DB = stat $path ? Storable::retrieve $path : { }; 2174 $DB = stat $path ? Storable::retrieve $path : { };
1758 } 2175 }
1759 2176
1760 my $pid; 2177 my $pid;
1761 2178
1762 sub db_save() { 2179 sub db_save() {
1763 warn "saving database $path\n";#d# remove later
1764 waitpid $pid, 0 if $pid; 2180 waitpid $pid, 0 if $pid;
1765 if (0 == ($pid = fork)) { 2181 if (0 == ($pid = fork)) {
1766 $DB->{_meta}{version} = 1; 2182 $DB->{_meta}{version} = 1;
1767 Storable::nstore $DB, "$path~"; 2183 Storable::nstore $DB, "$path~";
1768 rename "$path~", $path; 2184 rename "$path~", $path;
1816 open my $fh, "<:utf8", cf::confdir . "/config" 2232 open my $fh, "<:utf8", cf::confdir . "/config"
1817 or return; 2233 or return;
1818 2234
1819 local $/; 2235 local $/;
1820 *CFG = YAML::Syck::Load <$fh>; 2236 *CFG = YAML::Syck::Load <$fh>;
2237
2238 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2239
2240 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2241 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2242
2243 if (exists $CFG{mlockall}) {
2244 eval {
2245 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2246 and die "WARNING: m(un)lockall failed: $!\n";
2247 };
2248 warn $@ if $@;
2249 }
1821} 2250}
1822 2251
1823sub main { 2252sub main {
1824 # we must not ever block the main coroutine 2253 # we must not ever block the main coroutine
1825 local $Coro::idle = sub { 2254 local $Coro::idle = sub {
1826 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2255 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827 (Coro::unblock_sub {
1828 Event::one_event; 2256 async { Event::one_event };
1829 })->();
1830 }; 2257 };
1831 2258
1832 cfg_load; 2259 cfg_load;
1833 db_load; 2260 db_load;
1834 load_extensions; 2261 load_extensions;
1835 Event::loop; 2262 Event::loop;
1836} 2263}
1837 2264
1838############################################################################# 2265#############################################################################
1839# initialisation 2266# initialisation and cleanup
2267
2268# install some emergency cleanup handlers
2269BEGIN {
2270 for my $signal (qw(INT HUP TERM)) {
2271 Event->signal (
2272 data => WF_AUTOCANCEL,
2273 signal => $signal,
2274 cb => sub {
2275 cf::cleanup "SIG$signal";
2276 },
2277 );
2278 }
2279}
2280
2281sub emergency_save() {
2282 my $freeze_guard = cf::freeze_mainloop;
2283
2284 warn "enter emergency perl save\n";
2285
2286 cf::sync_job {
2287 # use a peculiar iteration method to avoid tripping on perl
2288 # refcount bugs in for. also avoids problems with players
2289 # and maps saved/Destroyed asynchronously.
2290 warn "begin emergency player save\n";
2291 for my $login (keys %cf::PLAYER) {
2292 my $pl = $cf::PLAYER{$login} or next;
2293 $pl->valid or next;
2294 $pl->save;
2295 }
2296 warn "end emergency player save\n";
2297
2298 warn "begin emergency map save\n";
2299 for my $path (keys %cf::MAP) {
2300 my $map = $cf::MAP{$path} or next;
2301 $map->valid or next;
2302 $map->save;
2303 }
2304 warn "end emergency map save\n";
2305 };
2306
2307 warn "leave emergency perl save\n";
2308}
1840 2309
1841sub reload() { 2310sub reload() {
1842 # can/must only be called in main 2311 # can/must only be called in main
1843 if ($Coro::current != $Coro::main) { 2312 if ($Coro::current != $Coro::main) {
1844 warn "can only reload from main coroutine\n"; 2313 warn "can only reload from main coroutine\n";
1845 return; 2314 return;
1846 } 2315 }
1847 2316
1848 warn "reloading..."; 2317 warn "reloading...";
1849 2318
1850 local $FREEZE = 1; 2319 warn "freezing server";
2320 my $guard = freeze_mainloop;
1851 cf::emergency_save; 2321 cf::emergency_save;
2322
2323 warn "sync database to disk";
2324 cf::db_sync;
2325 IO::AIO::flush;
1852 2326
1853 eval { 2327 eval {
1854 # if anything goes wrong in here, we should simply crash as we already saved 2328 # if anything goes wrong in here, we should simply crash as we already saved
1855 2329
1856 # cancel all watchers 2330 warn "cancel all watchers";
1857 for (Event::all_watchers) { 2331 for (Event::all_watchers) {
1858 $_->cancel if $_->data & WF_AUTOCANCEL; 2332 $_->cancel if $_->data & WF_AUTOCANCEL;
1859 } 2333 }
1860 2334
1861 # cancel all extension coros 2335 warn "cancel all extension coros";
1862 $_->cancel for values %EXT_CORO; 2336 $_->cancel for values %EXT_CORO;
1863 %EXT_CORO = (); 2337 %EXT_CORO = ();
1864 2338
2339 warn "remove commands";
2340 %COMMAND = ();
2341
2342 warn "remove ext commands";
2343 %EXTCMD = ();
2344
1865 # unload all extensions 2345 warn "unload/nuke all extensions";
1866 for (@exts) { 2346 for my $pkg (@EXTS) {
1867 warn "unloading <$_>"; 2347 warn "... unloading $pkg";
1868 unload_extension $_; 2348
2349 if (my $cb = $pkg->can ("unload")) {
2350 eval {
2351 $cb->($pkg);
2352 1
2353 } or warn "$pkg unloaded, but with errors: $@";
1869 } 2354 }
1870 2355
2356 warn "... nuking $pkg";
2357 Symbol::delete_package $pkg;
2358 }
2359
1871 # unload all modules loaded from $LIBDIR 2360 warn "unload all perl modules loaded from $LIBDIR";
1872 while (my ($k, $v) = each %INC) { 2361 while (my ($k, $v) = each %INC) {
1873 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2362 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874 2363
1875 warn "removing <$k>"; 2364 warn "removing <$k>";
1876 delete $INC{$k}; 2365 delete $INC{$k};
1883 } 2372 }
1884 2373
1885 Symbol::delete_package $k; 2374 Symbol::delete_package $k;
1886 } 2375 }
1887 2376
1888 # sync database to disk
1889 cf::db_sync;
1890 IO::AIO::flush;
1891
1892 # get rid of safe::, as good as possible 2377 warn "get rid of safe::, as good as possible";
1893 Symbol::delete_package "safe::$_" 2378 Symbol::delete_package "safe::$_"
1894 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2379 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895 2380
1896 # remove register_script_function callbacks
1897 # TODO
1898
1899 # unload cf.pm "a bit" 2381 warn "unload cf.pm \"a bit\"";
1900 delete $INC{"cf.pm"}; 2382 delete $INC{"cf.pm"};
1901 2383
1902 # don't, removes xs symbols, too, 2384 # don't, removes xs symbols, too,
1903 # and global variables created in xs 2385 # and global variables created in xs
1904 #Symbol::delete_package __PACKAGE__; 2386 #Symbol::delete_package __PACKAGE__;
1905 2387
1906 # reload cf.pm
1907 warn "reloading cf.pm"; 2388 warn "reloading cf.pm";
1908 require cf; 2389 require cf;
1909 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2390 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910 2391
1911 # load config and database again 2392 warn "load config and database again";
1912 cf::cfg_load; 2393 cf::cfg_load;
1913 cf::db_load; 2394 cf::db_load;
1914 2395
1915 # load extensions
1916 warn "load extensions"; 2396 warn "load extensions";
1917 cf::load_extensions; 2397 cf::load_extensions;
1918 2398
1919 # reattach attachments to objects 2399 warn "reattach attachments to objects/players";
1920 warn "reattach";
1921 _global_reattach; 2400 _global_reattach;
2401 warn "reattach attachments to maps";
2402 reattach $_ for values %MAP;
1922 }; 2403 };
1923 2404
1924 if ($@) { 2405 if ($@) {
1925 warn $@; 2406 warn $@;
1926 warn "error while reloading, exiting."; 2407 warn "error while reloading, exiting.";
1927 exit 1; 2408 exit 1;
1928 } 2409 }
1929 2410
1930 warn "reloaded successfully"; 2411 warn "reloaded";
1931}; 2412};
1932 2413
1933############################################################################# 2414#############################################################################
1934 2415
1935unless ($LINK_MAP) { 2416unless ($LINK_MAP) {
1942 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2423 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2424 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1944 2425
1945 # dirty hack because... archetypes are not yet loaded 2426 # dirty hack because... archetypes are not yet loaded
1946 Event->timer ( 2427 Event->timer (
1947 after => 2, 2428 after => 10,
1948 cb => sub { 2429 cb => sub {
1949 $_[0]->w->cancel; 2430 $_[0]->w->cancel;
1950 2431
1951 # provide some exits "home" 2432 # provide some exits "home"
1952 my $exit = cf::object::new "exit"; 2433 my $exit = cf::object::new "exit";
1971 $LINK_MAP->{deny_reset} = 1; 2452 $LINK_MAP->{deny_reset} = 1;
1972 2453
1973 $cf::MAP{$LINK_MAP->path} = $LINK_MAP; 2454 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974} 2455}
1975 2456
1976register "<global>", __PACKAGE__;
1977
1978register_command "reload" => sub { 2457register_command "reload" => sub {
1979 my ($who, $arg) = @_; 2458 my ($who, $arg) = @_;
1980 2459
1981 if ($who->flag (FLAG_WIZ)) { 2460 if ($who->flag (FLAG_WIZ)) {
1982 $who->message ("start of reload."); 2461 $who->message ("start of reload.");
1991 reentrant => 0, 2470 reentrant => 0,
1992 prio => 0, 2471 prio => 0,
1993 at => $NEXT_TICK || $TICK, 2472 at => $NEXT_TICK || $TICK,
1994 data => WF_AUTOCANCEL, 2473 data => WF_AUTOCANCEL,
1995 cb => sub { 2474 cb => sub {
1996 unless ($FREEZE) { 2475 $NOW = Event::time;
2476
1997 cf::server_tick; # one server iteration 2477 cf::server_tick; # one server iteration
1998 $RUNTIME += $TICK; 2478 $RUNTIME += $TICK;
1999 }
2000
2001 $NEXT_TICK += $TICK; 2479 $NEXT_TICK += $TICK;
2480
2481 $WAIT_FOR_TICK->broadcast;
2482 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2002 2483
2003 # if we are delayed by four ticks or more, skip them all 2484 # if we are delayed by four ticks or more, skip them all
2004 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2485 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005 2486
2006 $TICK_WATCHER->at ($NEXT_TICK); 2487 $TICK_WATCHER->at ($NEXT_TICK);
2028 or warn "ERROR: unable to write runtime file: $!"; 2509 or warn "ERROR: unable to write runtime file: $!";
2029 })->(); 2510 })->();
2030 }, 2511 },
2031); 2512);
2032 2513
2514END { cf::emergency_save }
2515
20331 25161
2034 2517

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