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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.125 by root, Tue Jan 2 23:06:39 2007 UTC vs.
Revision 1.213 by root, Tue Feb 13 20:01:04 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 3.5 ();
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 BDB ();
21use Data::Dumper;
20use Digest::MD5; 22use Digest::MD5;
21use Fcntl; 23use Fcntl;
22use IO::AIO 2.31 (); 24use IO::AIO 2.32 ();
23use YAML::Syck (); 25use YAML::Syck ();
24use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25 30
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27 34
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 36$YAML::Syck::ImplicitUnicode = 1;
30 37
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 38$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 39
35our %COMMAND = (); 40our %COMMAND = ();
36our %COMMAND_TIME = (); 41our %COMMAND_TIME = ();
42
43our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 44our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps
38 47
39our @EVENT; 48our @EVENT;
40our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
41 50
42our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 52our $TICK_WATCHER;
53our $AIO_POLL_WATCHER;
54our $WRITE_RUNTIME_WATCHER;
44our $NEXT_TICK; 55our $NEXT_TICK;
45our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
46 61
47our %CFG; 62our %CFG;
48 63
49our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 65our $RUNTIME;
51 66
67our %PLAYER; # all users
52our %MAP; # all maps 68our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 69our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75
76# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57 78
58binmode STDOUT; 79binmode STDOUT;
59binmode STDERR; 80binmode STDERR;
60 81
61# read virtual server time, if available 82# read virtual server time, if available
68mkdir cf::localdir; 89mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
73 95
74# a special map that is always available 96our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 97
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 98sub cf::map::normalise;
78 99
79############################################################################# 100#############################################################################
80 101
81=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
82 103
106 127
107=item %cf::CFG 128=item %cf::CFG
108 129
109Configuration for the server, loaded from C</etc/crossfire/config>, or 130Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 131from wherever your confdir points to.
132
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
134
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
137processing has been done. Call C<< ->wait >> on them to maximise the
138window of cpu time available, or simply to synchronise to the server tick.
111 139
112=back 140=back
113 141
114=cut 142=cut
115 143
119 utf8::encode $msg; 147 utf8::encode $msg;
120 148
121 $msg .= "\n" 149 $msg .= "\n"
122 unless $msg =~ /\n$/; 150 unless $msg =~ /\n$/;
123 151
124 LOG llevError, "cfperl: $msg"; 152 LOG llevError, $msg;
125 }; 153 };
126} 154}
127 155
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 175
148$Event::DIED = sub { 176$Event::DIED = sub {
149 warn "error in event callback: @_"; 177 warn "error in event callback: @_";
150}; 178};
151 179
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 180=head2 UTILITY FUNCTIONS
157 181
158=over 4 182=over 4
159 183
184=item dumpval $ref
185
160=cut 186=cut
187
188sub dumpval {
189 eval {
190 local $SIG{__DIE__};
191 my $d;
192 if (1) {
193 $d = new Data::Dumper([$_[0]], ["*var"]);
194 $d->Terse(1);
195 $d->Indent(2);
196 $d->Quotekeys(0);
197 $d->Useqq(1);
198 #$d->Bless(...);
199 $d->Seen($_[1]) if @_ > 1;
200 $d = $d->Dump();
201 }
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d
204 } || "[unable to dump $_[0]: '$@']";
205}
161 206
162use JSON::Syck (); # TODO# replace by JSON::PC once working 207use JSON::Syck (); # TODO# replace by JSON::PC once working
163 208
164=item $ref = cf::from_json $json 209=item $ref = cf::from_json $json
165 210
181sub to_json($) { 226sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 228 JSON::Syck::Dump $_[0]
184} 229}
185 230
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string 231=item cf::lock_wait $string
209 232
210Wait until the given lock is available. See cf::lock_acquire. 233Wait until the given lock is available. See cf::lock_acquire.
211 234
212=item my $lock = cf::lock_acquire $string 235=item my $lock = cf::lock_acquire $string
213 236
214Wait until the given lock is available and then acquires it and returns 237Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope, 238a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically 239for example when the coroutine gets canceled), the lock is automatically
217returned. 240returned.
218 241
219Lock names should begin with a unique identifier (for example, find_map 242Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 243uses map_find and cf::map::load uses map_load).
221 244
222=cut 245=cut
223 246
224our %LOCK; 247our %LOCK;
225 248
239 # wait, to be sure we are not locked 262 # wait, to be sure we are not locked
240 lock_wait $key; 263 lock_wait $key;
241 264
242 $LOCK{$key} = []; 265 $LOCK{$key} = [];
243 266
244 cf::guard { 267 Coro::guard {
245 # wake up all waiters, to be on the safe side 268 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 269 $_->ready for @{ delete $LOCK{$key} };
247 } 270 }
248} 271}
272
273sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active;
275
276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 $WRITE_RUNTIME_WATCHER->start;
279 };
280 $WRITE_RUNTIME_WATCHER->stop;
281 $TICK_WATCHER->stop;
282 $guard
283}
284
285=item cf::async { BLOCK }
286
287Currently the same as Coro::async_pool, meaning you cannot use
288C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
289thing you are allowed to do is call C<prio> on it.
290
291=cut
292
293BEGIN { *async = \&Coro::async_pool }
249 294
250=item cf::sync_job { BLOCK } 295=item cf::sync_job { BLOCK }
251 296
252The design of crossfire+ requires that the main coro ($Coro::main) is 297The design of crossfire+ requires that the main coro ($Coro::main) is
253always able to handle events or runnable, as crossfire+ is only partly 298always able to handle events or runnable, as crossfire+ is only partly
267 # this is the main coro, too bad, we have to block 312 # this is the main coro, too bad, we have to block
268 # till the operation succeeds, freezing the server :/ 313 # till the operation succeeds, freezing the server :/
269 314
270 # TODO: use suspend/resume instead 315 # TODO: use suspend/resume instead
271 # (but this is cancel-safe) 316 # (but this is cancel-safe)
272 local $FREEZE = 1; 317 my $freeze_guard = freeze_mainloop;
273 318
274 my $busy = 1; 319 my $busy = 1;
275 my @res; 320 my @res;
276 321
277 (Coro::async { 322 (async {
278 @res = eval { $job->() }; 323 @res = eval { $job->() };
279 warn $@ if $@; 324 warn $@ if $@;
280 undef $busy; 325 undef $busy;
281 })->prio (Coro::PRIO_MAX); 326 })->prio (Coro::PRIO_MAX);
282 327
283 while ($busy) { 328 while ($busy) {
284 Coro::cede_notself; 329 Coro::cede or Event::one_event;
285 Event::one_event unless Coro::nready;
286 } 330 }
287 331
288 wantarray ? @res : $res[0] 332 wantarray ? @res : $res[0]
289 } else { 333 } else {
290 # we are in another coroutine, how wonderful, everything just works 334 # we are in another coroutine, how wonderful, everything just works
291 335
292 $job->() 336 $job->()
293 } 337 }
294} 338}
295 339
296=item $coro = cf::coro { BLOCK } 340=item $coro = cf::async_ext { BLOCK }
297 341
298Creates and returns a new coro. This coro is automcatially being canceled 342Like async, but this coro is automatically being canceled when the
299when the extension calling this is being unloaded. 343extension calling this is being unloaded.
300 344
301=cut 345=cut
302 346
303sub coro(&) { 347sub async_ext(&) {
304 my $cb = shift; 348 my $cb = shift;
305 349
306 my $coro; $coro = async { 350 my $coro = &Coro::async ($cb);
307 eval {
308 $cb->();
309 };
310 warn $@ if $@;
311 };
312 351
313 $coro->on_destroy (sub { 352 $coro->on_destroy (sub {
314 delete $EXT_CORO{$coro+0}; 353 delete $EXT_CORO{$coro+0};
315 }); 354 });
316 $EXT_CORO{$coro+0} = $coro; 355 $EXT_CORO{$coro+0} = $coro;
322 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
323 362
324 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325 or return; 364 or return;
326 365
366 my $value = $cf::RUNTIME + 90 + 10;
327 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369
328 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
329 and return; 371 and return;
330 372
373 # always fsync - this file is important
331 aio_fsync $fh 374 aio_fsync $fh
332 and return; 375 and return;
333 376
334 close $fh 377 close $fh
335 or return; 378 or return;
341} 384}
342 385
343=back 386=back
344 387
345=cut 388=cut
346
347#############################################################################
348
349package cf::path;
350
351sub new {
352 my ($class, $path, $base) = @_;
353
354 $path = $path->as_string if ref $path;
355
356 my $self = bless { }, $class;
357
358 # {... are special paths that are not touched
359 # ?xxx/... are special absolute paths
360 # ?random/... random maps
361 # /! non-realised random map exit
362 # /... normal maps
363 # ~/... per-player maps without a specific player (DO NOT USE)
364 # ~user/... per-player map of a specific user
365
366 if ($path =~ /^{/) {
367 # fine as it is
368 } elsif ($path =~ s{^\?random/}{}) {
369 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370 $self->{random} = cf::from_json $data;
371 } else {
372 if ($path =~ s{^~([^/]+)?}{}) {
373 $self->{user_rel} = 1;
374
375 if (defined $1) {
376 $self->{user} = $1;
377 } elsif ($base =~ m{^~([^/]+)/}) {
378 $self->{user} = $1;
379 } else {
380 warn "cannot resolve user-relative path without user <$path,$base>\n";
381 }
382 } elsif ($path =~ /^\//) {
383 # already absolute
384 } else {
385 $base =~ s{[^/]+/?$}{};
386 return $class->new ("$base/$path");
387 }
388
389 for ($path) {
390 redo if s{/\.?/}{/};
391 redo if s{/[^/]+/\.\./}{/};
392 }
393 }
394
395 $self->{path} = $path;
396
397 $self
398}
399
400# the name / primary key / in-game path
401sub as_string {
402 my ($self) = @_;
403
404 $self->{user_rel} ? "~$self->{user}$self->{path}"
405 : $self->{random} ? "?random/$self->{path}"
406 : $self->{path}
407}
408
409# the displayed name, this is a one way mapping
410sub visible_name {
411 my ($self) = @_;
412
413# if (my $rmp = $self->{random}) {
414# # todo: be more intelligent about this
415# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416# } else {
417 $self->as_string
418# }
419}
420
421# escape the /'s in the path
422sub _escaped_path {
423 # ∕ is U+2215
424 (my $path = $_[0]{path}) =~ s/\//∕/g;
425 $path
426}
427
428# the original (read-only) location
429sub load_path {
430 my ($self) = @_;
431
432 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433}
434
435# the temporary/swap location
436sub save_path {
437 my ($self) = @_;
438
439 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442}
443
444# the unique path, might be eq to save_path
445sub uniq_path {
446 my ($self) = @_;
447
448 $self->{user_rel} || $self->{random}
449 ? undef
450 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451}
452
453# return random map parameters, or undef
454sub random_map_params {
455 my ($self) = @_;
456
457 $self->{random}
458}
459
460# this is somewhat ugly, but style maps do need special treatment
461sub is_style_map {
462 $_[0]{path} =~ m{^/styles/}
463}
464
465package cf;
466 389
467############################################################################# 390#############################################################################
468 391
469=head2 ATTACHABLE OBJECTS 392=head2 ATTACHABLE OBJECTS
470 393
596our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
597our @CB_MAP = (); 520our @CB_MAP = ();
598 521
599my %attachment; 522my %attachment;
600 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
601sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
602 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
603 532
604 use sort 'stable'; 533 use sort 'stable';
605 534
776# object support 705# object support
777 706
778sub reattach { 707sub reattach {
779 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
780 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781 712
782 my $registry = $obj->registry; 713 my $registry = $obj->registry;
783 714
784 @$registry = (); 715 @$registry = ();
785 716
832 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
833 764
834 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
836 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
838 close $fh; 769 close $fh;
839 770
840 if (@$objs) { 771 if (@$objs) {
841 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
843 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
844 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
845 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
846 close $fh; 777 close $fh;
847 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
848 } 779 }
849 } else { 780 } else {
850 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
856 } 787 }
857 } else { 788 } else {
858 aio_unlink $filename; 789 aio_unlink $filename;
859 aio_unlink "$filename.pst"; 790 aio_unlink "$filename.pst";
860 } 791 }
792
793 #d##TODO# nuke non .map-files if exist
794 if ($filename =~ s/\.map$//) {
795 aio_unlink $filename;
796 aio_unlink "$filename.pst";
797 }
861 } 798 }
862} 799}
863 800
864sub object_freezer_as_string { 801sub object_freezer_as_string {
865 my ($rdata, $objs) = @_; 802 my ($rdata, $objs) = @_;
871 808
872sub object_thawer_load { 809sub object_thawer_load {
873 my ($filename) = @_; 810 my ($filename) = @_;
874 811
875 my ($data, $av); 812 my ($data, $av);
813
814 #d#TODO remove .map if file does not exist
815 aio_stat $filename and $filename =~ s/\.map$//;
876 816
877 (aio_load $filename, $data) >= 0 817 (aio_load $filename, $data) >= 0
878 or return; 818 or return;
879 819
880 unless (aio_stat "$filename.pst") { 820 unless (aio_stat "$filename.pst") {
917=cut 857=cut
918 858
919sub register_extcmd { 859sub register_extcmd {
920 my ($name, $cb) = @_; 860 my ($name, $cb) = @_;
921 861
922 my $caller = caller;
923 #warn "registering extcmd '$name' to '$caller'";
924
925 $EXTCMD{$name} = [$cb, $caller]; 862 $EXTCMD{$name} = $cb;
926} 863}
927 864
928cf::player->attach ( 865cf::player->attach (
929 on_command => sub { 866 on_command => sub {
930 my ($pl, $name, $params) = @_; 867 my ($pl, $name, $params) = @_;
943 880
944 my $msg = eval { from_json $buf }; 881 my $msg = eval { from_json $buf };
945 882
946 if (ref $msg) { 883 if (ref $msg) {
947 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 884 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948 if (my %reply = $cb->[0]->($pl, $msg)) { 885 if (my %reply = $cb->($pl, $msg)) {
949 $pl->ext_reply ($msg->{msgid}, %reply); 886 $pl->ext_reply ($msg->{msgid}, %reply);
950 } 887 }
951 } 888 }
952 } else { 889 } else {
953 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 890 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
955 892
956 cf::override; 893 cf::override;
957 }, 894 },
958); 895);
959 896
960sub register {
961 my ($base, $pkg) = @_;
962
963 #TODO
964}
965
966sub load_extension { 897sub load_extension {
967 my ($path) = @_; 898 my ($path) = @_;
968 899
969 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 900 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
970 my $base = $1; 901 my $base = $1;
971 my $pkg = $1; 902 my $pkg = $1;
972 $pkg =~ s/[^[:word:]]/_/g; 903 $pkg =~ s/[^[:word:]]/_/g;
973 $pkg = "ext::$pkg"; 904 $pkg = "ext::$pkg";
974 905
975 warn "loading '$path' into '$pkg'\n"; 906 warn "... loading '$path' into '$pkg'\n";
976 907
977 open my $fh, "<:utf8", $path 908 open my $fh, "<:utf8", $path
978 or die "$path: $!"; 909 or die "$path: $!";
979 910
980 my $source = 911 my $source =
981 "package $pkg; use strict; use utf8;\n" 912 "package $pkg; use strict; use utf8;\n"
982 . "#line 1 \"$path\"\n{\n" 913 . "#line 1 \"$path\"\n{\n"
983 . (do { local $/; <$fh> }) 914 . (do { local $/; <$fh> })
984 . "\n};\n1"; 915 . "\n};\n1";
985 916
986 eval $source 917 unless (eval $source) {
987 or die $@ ? "$path: $@\n" 918 my $msg = $@ ? "$path: $@\n"
988 : "extension disabled.\n"; 919 : "extension disabled.\n";
989 920 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990 push @exts, $pkg; 921 warn $@;
991 $ext_pkg{$base} = $pkg; 922 warn "mandatory extension failed to load, exiting.\n";
992 923 exit 1;
993# no strict 'refs'; 924 }
994# @{"$pkg\::ISA"} = ext::; 925 die $@;
995
996 register $base, $pkg;
997}
998
999sub unload_extension {
1000 my ($pkg) = @_;
1001
1002 warn "removing extension $pkg\n";
1003
1004 # remove hooks
1005 #TODO
1006# for my $idx (0 .. $#PLUGIN_EVENT) {
1007# delete $hook[$idx]{$pkg};
1008# } 926 }
1009 927
1010 # remove commands 928 push @EXTS, $pkg;
1011 for my $name (keys %COMMAND) {
1012 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014 if (@cb) {
1015 $COMMAND{$name} = \@cb;
1016 } else {
1017 delete $COMMAND{$name};
1018 }
1019 }
1020
1021 # remove extcmds
1022 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023 delete $EXTCMD{$name};
1024 }
1025
1026 if (my $cb = $pkg->can ("unload")) {
1027 eval {
1028 $cb->($pkg);
1029 1
1030 } or warn "$pkg unloaded, but with errors: $@";
1031 }
1032
1033 Symbol::delete_package $pkg;
1034} 929}
1035 930
1036sub load_extensions { 931sub load_extensions {
1037 for my $ext (<$LIBDIR/*.ext>) { 932 for my $ext (<$LIBDIR/*.ext>) {
1038 next unless -r $ext; 933 next unless -r $ext;
1042 } or warn "$ext not loaded: $@"; 937 } or warn "$ext not loaded: $@";
1043 } 938 }
1044} 939}
1045 940
1046############################################################################# 941#############################################################################
1047# load/save/clean perl data associated with a map
1048
1049*cf::mapsupport::on_clean = sub {
1050 my ($map) = @_;
1051
1052 my $path = $map->tmpname;
1053 defined $path or return;
1054
1055 unlink "$path.pst";
1056};
1057
1058cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060#############################################################################
1061# load/save perl data associated with player->ob objects
1062
1063sub all_objects(@) {
1064 @_, map all_objects ($_->inv), @_
1065}
1066
1067# TODO: compatibility cruft, remove when no longer needed
1068cf::player->attach (
1069 on_load => sub {
1070 my ($pl, $path) = @_;
1071
1072 for my $o (all_objects $pl->ob) {
1073 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074 $o->set_ob_key_value ("_perl_data");
1075
1076 %$o = %{ Storable::thaw pack "H*", $value };
1077 }
1078 }
1079 },
1080);
1081
1082#############################################################################
1083 942
1084=head2 CORE EXTENSIONS 943=head2 CORE EXTENSIONS
1085 944
1086Functions and methods that extend core crossfire objects. 945Functions and methods that extend core crossfire objects.
1087 946
947=cut
948
949package cf::player;
950
951use Coro::AIO;
952
1088=head3 cf::player 953=head3 cf::player
1089 954
1090=over 4 955=over 4
1091 956
1092=item cf::player::exists $login 957=item cf::player::find $login
1093 958
1094Returns true when the given account exists. 959Returns the given player object, loading it if necessary (might block).
1095 960
1096=cut 961=cut
1097 962
1098sub cf::player::exists($) { 963sub playerdir($) {
1099 cf::player::find $_[0] 964 cf::localdir
1100 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 965 . "/"
966 . cf::playerdir
967 . "/"
968 . (ref $_[0] ? $_[0]->ob->name : $_[0])
969}
970
971sub path($) {
972 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973
974 (playerdir $login) . "/$login.pl"
975}
976
977sub find_active($) {
978 $cf::PLAYER{$_[0]}
979 and $cf::PLAYER{$_[0]}->active
980 and $cf::PLAYER{$_[0]}
981}
982
983sub exists($) {
984 my ($login) = @_;
985
986 $cf::PLAYER{$login}
987 or cf::sync_job { !aio_stat path $login }
988}
989
990sub find($) {
991 return $cf::PLAYER{$_[0]} || do {
992 my $login = $_[0];
993
994 my $guard = cf::lock_acquire "user_find:$login";
995
996 $cf::PLAYER{$_[0]} || do {
997 my $pl = load_pl path $login
998 or return;
999 $cf::PLAYER{$login} = $pl
1000 }
1001 }
1002}
1003
1004sub save($) {
1005 my ($pl) = @_;
1006
1007 return if $pl->{deny_save};
1008
1009 my $path = path $pl;
1010 my $guard = cf::lock_acquire "user_save:$path";
1011
1012 return if $pl->{deny_save};
1013
1014 aio_mkdir playerdir $pl, 0770;
1015 $pl->{last_save} = $cf::RUNTIME;
1016
1017 $pl->save_pl ($path);
1018 Coro::cede;
1019}
1020
1021sub new($) {
1022 my ($login) = @_;
1023
1024 my $self = create;
1025
1026 $self->ob->name ($login);
1027 $self->{deny_save} = 1;
1028
1029 $cf::PLAYER{$login} = $self;
1030
1031 $self
1032}
1033
1034=item $pl->quit_character
1035
1036Nukes the player without looking back. If logged in, the connection will
1037be destroyed. May block for a long time.
1038
1039=cut
1040
1041sub quit_character {
1042 my ($pl) = @_;
1043
1044 $pl->{deny_save} = 1;
1045 $pl->password ("*"); # this should lock out the player until we nuked the dir
1046
1047 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1048 $pl->deactivate;
1049 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1050 $pl->ns->destroy if $pl->ns;
1051
1052 my $path = playerdir $pl;
1053 my $temp = "$path~$cf::RUNTIME~deleting~";
1054 aio_rename $path, $temp;
1055 delete $cf::PLAYER{$pl->ob->name};
1056 $pl->destroy;
1057 IO::AIO::aio_rmtree $temp;
1058}
1059
1060=item cf::player::list_logins
1061
1062Returns am arrayref of all valid playernames in the system, can take a
1063while and may block, so not sync_job-capable, ever.
1064
1065=cut
1066
1067sub list_logins {
1068 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1069 or return [];
1070
1071 my @logins;
1072
1073 for my $login (@$dirs) {
1074 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1075 aio_read $fh, 0, 512, my $buf, 0 or next;
1076 $buf !~ /^password -------------$/m or next; # official not-valid tag
1077
1078 utf8::decode $login;
1079 push @logins, $login;
1080 }
1081
1082 \@logins
1083}
1084
1085=item $player->maps
1086
1087Returns an arrayref of map paths that are private for this
1088player. May block.
1089
1090=cut
1091
1092sub maps($) {
1093 my ($pl) = @_;
1094
1095 $pl = ref $pl ? $pl->ob->name : $pl;
1096
1097 my $files = aio_readdir playerdir $pl
1098 or return;
1099
1100 my @paths;
1101
1102 for (@$files) {
1103 utf8::decode $_;
1104 next if /\.(?:pl|pst)$/;
1105 next unless /^$PATH_SEP/o;
1106
1107 push @paths, cf::map::normalise "~$pl/$_";
1108 }
1109
1110 \@paths
1101} 1111}
1102 1112
1103=item $player->ext_reply ($msgid, $msgtype, %msg) 1113=item $player->ext_reply ($msgid, $msgtype, %msg)
1104 1114
1105Sends an ext reply to the player. 1115Sends an ext reply to the player.
1106 1116
1107=cut 1117=cut
1108 1118
1109sub cf::player::ext_reply($$$%) { 1119sub ext_reply($$$%) {
1110 my ($self, $id, %msg) = @_; 1120 my ($self, $id, %msg) = @_;
1111 1121
1112 $msg{msgid} = $id; 1122 $msg{msgid} = $id;
1113 1123
1114 $self->send ("ext " . to_json \%msg); 1124 $self->send ("ext " . cf::to_json \%msg);
1115} 1125}
1126
1127package cf;
1116 1128
1117=back 1129=back
1118 1130
1119 1131
1120=head3 cf::map 1132=head3 cf::map
1126package cf::map; 1138package cf::map;
1127 1139
1128use Fcntl; 1140use Fcntl;
1129use Coro::AIO; 1141use Coro::AIO;
1130 1142
1143use overload
1144 '""' => \&as_string,
1145 fallback => 1;
1146
1131our $MAX_RESET = 7200; 1147our $MAX_RESET = 3600;
1132our $DEFAULT_RESET = 3600; 1148our $DEFAULT_RESET = 3000;
1133 1149
1134sub generate_random_map { 1150sub generate_random_map {
1135 my ($path, $rmp) = @_; 1151 my ($self, $rmp) = @_;
1136
1137 # mit "rum" bekleckern, nicht 1152 # mit "rum" bekleckern, nicht
1138 cf::map::_create_random_map 1153 $self->_create_random_map (
1139 $path,
1140 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1154 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1155 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1156 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143 $rmp->{exit_on_final_map}, 1157 $rmp->{exit_on_final_map},
1144 $rmp->{xsize}, $rmp->{ysize}, 1158 $rmp->{xsize}, $rmp->{ysize},
1145 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1159 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1160 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1161 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1162 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1163 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150 (cf::region::find $rmp->{region}) 1164 (cf::region::find $rmp->{region}), $rmp->{custom}
1165 )
1166}
1167
1168=item cf::map->register ($regex, $prio)
1169
1170Register a handler for the map path matching the given regex at the
1171givne priority (higher is better, built-in handlers have priority 0, the
1172default).
1173
1174=cut
1175
1176sub register {
1177 my (undef, $regex, $prio) = @_;
1178 my $pkg = caller;
1179
1180 no strict;
1181 push @{"$pkg\::ISA"}, __PACKAGE__;
1182
1183 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1184}
1185
1186# also paths starting with '/'
1187$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1188
1189sub thawer_merge {
1190 my ($self, $merge) = @_;
1191
1192 # we have to keep some variables in memory intact
1193 local $self->{path};
1194 local $self->{load_path};
1195 local $self->{deny_save};
1196 local $self->{deny_reset};
1197
1198 $self->SUPER::thawer_merge ($merge);
1199}
1200
1201sub normalise {
1202 my ($path, $base) = @_;
1203
1204 $path = "$path"; # make sure its a string
1205
1206 $path =~ s/\.map$//;
1207
1208 # map plan:
1209 #
1210 # /! non-realised random map exit (special hack!)
1211 # {... are special paths that are not being touched
1212 # ?xxx/... are special absolute paths
1213 # ?random/... random maps
1214 # /... normal maps
1215 # ~user/... per-player map of a specific user
1216
1217 $path =~ s/$PATH_SEP/\//go;
1218
1219 # treat it as relative path if it starts with
1220 # something that looks reasonable
1221 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1222 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1223
1224 $base =~ s{[^/]+/?$}{};
1225 $path = "$base/$path";
1226 }
1227
1228 for ($path) {
1229 redo if s{//}{/};
1230 redo if s{/\.?/}{/};
1231 redo if s{/[^/]+/\.\./}{/};
1232 }
1233
1234 $path
1235}
1236
1237sub new_from_path {
1238 my (undef, $path, $base) = @_;
1239
1240 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1241
1242 $path = normalise $path, $base;
1243
1244 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1245 if ($path =~ $EXT_MAP{$pkg}[1]) {
1246 my $self = bless cf::map::new, $pkg;
1247 $self->{path} = $path; $self->path ($path);
1248 $self->init; # pass $1 etc.
1249 return $self;
1250 }
1251 }
1252
1253 Carp::carp "unable to resolve path '$path' (base '$base').";
1254 ()
1255}
1256
1257sub init {
1258 my ($self) = @_;
1259
1260 $self
1261}
1262
1263sub as_string {
1264 my ($self) = @_;
1265
1266 "$self->{path}"
1267}
1268
1269# the displayed name, this is a one way mapping
1270sub visible_name {
1271 &as_string
1272}
1273
1274# the original (read-only) location
1275sub load_path {
1276 my ($self) = @_;
1277
1278 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1279}
1280
1281# the temporary/swap location
1282sub save_path {
1283 my ($self) = @_;
1284
1285 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1286 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1287}
1288
1289# the unique path, undef == no special unique path
1290sub uniq_path {
1291 my ($self) = @_;
1292
1293 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1294 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1151} 1295}
1152 1296
1153# and all this just because we cannot iterate over 1297# and all this just because we cannot iterate over
1154# all maps in C++... 1298# all maps in C++...
1155sub change_all_map_light { 1299sub change_all_map_light {
1157 1301
1158 $_->change_map_light ($change) 1302 $_->change_map_light ($change)
1159 for grep $_->outdoor, values %cf::MAP; 1303 for grep $_->outdoor, values %cf::MAP;
1160} 1304}
1161 1305
1306sub unlink_save {
1307 my ($self) = @_;
1308
1309 utf8::encode (my $save = $self->save_path);
1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313 #d#TODO remove .map and also nuke
1314 $save =~ s/\.map// or return;#d#
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317}
1318
1162sub try_load_header($) { 1319sub load_header_from($) {
1163 my ($path) = @_; 1320 my ($self, $path) = @_;
1164 1321
1165 utf8::encode $path; 1322 utf8::encode $path;
1166 aio_open $path, O_RDONLY, 0 1323 #aio_open $path, O_RDONLY, 0
1324 # or return;
1325
1326 $self->_load_header ($path)
1167 or return; 1327 or return;
1168 1328
1169 my $map = cf::map::new 1329 $self->{load_path} = $path;
1330
1331 1
1332}
1333
1334sub load_header_orig {
1335 my ($self) = @_;
1336
1337 $self->load_header_from ($self->load_path)
1338}
1339
1340sub load_header_temp {
1341 my ($self) = @_;
1342
1343 $self->load_header_from ($self->save_path)
1344}
1345
1346sub prepare_temp {
1347 my ($self) = @_;
1348
1349 $self->last_access ((delete $self->{last_access})
1350 || $cf::RUNTIME); #d#
1351 # safety
1352 $self->{instantiate_time} = $cf::RUNTIME
1353 if $self->{instantiate_time} > $cf::RUNTIME;
1354}
1355
1356sub prepare_orig {
1357 my ($self) = @_;
1358
1359 $self->{load_original} = 1;
1360 $self->{instantiate_time} = $cf::RUNTIME;
1361 $self->last_access ($cf::RUNTIME);
1362 $self->instantiate;
1363}
1364
1365sub load_header {
1366 my ($self) = @_;
1367
1368 if ($self->load_header_temp) {
1369 $self->prepare_temp;
1370 } else {
1371 $self->load_header_orig
1170 or return; 1372 or return;
1373 $self->prepare_orig;
1374 }
1171 1375
1172 $map->load_header ($path) 1376 1
1173 or return;
1174
1175 $map->{load_path} = $path;
1176
1177 $map
1178} 1377}
1179 1378
1379sub find;
1180sub find_map { 1380sub find {
1181 my ($path, $origin) = @_; 1381 my ($path, $origin) = @_;
1182 1382
1183 #warn "find_map<$path,$origin>\n";#d#
1184
1185 $path = new cf::path $path, $origin && $origin->path; 1383 $path = normalise $path, $origin && $origin->path;
1186 my $key = $path->as_string;
1187 1384
1188 cf::lock_wait "map_find:$key"; 1385 cf::lock_wait "map_find:$path";
1189 1386
1190 $cf::MAP{$key} || do { 1387 $cf::MAP{$path} || do {
1191 my $guard = cf::lock_acquire "map_find:$key"; 1388 my $guard = cf::lock_acquire "map_find:$path";
1192 1389 my $map = new_from_path cf::map $path
1193 # do it the slow way
1194 my $map = try_load_header $path->save_path;
1195
1196 if ($map) {
1197 # safety
1198 $map->{instantiate_time} = $cf::RUNTIME
1199 if $map->{instantiate_time} > $cf::RUNTIME;
1200 } else {
1201 if (my $rmp = $path->random_map_params) {
1202 $map = generate_random_map $key, $rmp;
1203 } else {
1204 $map = try_load_header $path->load_path;
1205 }
1206
1207 $map or return; 1390 or return;
1208 1391
1209 $map->{load_original} = 1;
1210 $map->{instantiate_time} = $cf::RUNTIME;
1211 $map->instantiate;
1212
1213 # per-player maps become, after loading, normal maps
1214 $map->per_player (0) if $path->{user_rel};
1215 }
1216
1217 $map->path ($key);
1218 $map->{path} = $path;
1219 $map->{last_save} = $cf::RUNTIME; 1392 $map->{last_save} = $cf::RUNTIME;
1220 $map->last_access ($cf::RUNTIME);
1221 1393
1222 if ($map->should_reset) { 1394 $map->load_header
1395 or return;
1396
1397 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1398 # doing this can freeze the server in a sync job, obviously
1399 #$cf::WAIT_FOR_TICK->wait;
1223 $map->reset; 1400 $map->reset;
1224 undef $guard; 1401 undef $guard;
1225 $map = cf::map::find_map ($path) 1402 return find $path;
1226 or return;
1227 } 1403 }
1228 1404
1229 $cf::MAP{$key} = $map 1405 $cf::MAP{$path} = $map
1230 } 1406 }
1231} 1407}
1408
1409sub pre_load { }
1410sub post_load { }
1232 1411
1233sub load { 1412sub load {
1234 my ($self) = @_; 1413 my ($self) = @_;
1235 1414
1415 local $self->{deny_reset} = 1; # loading can take a long time
1416
1236 my $path = $self->{path}; 1417 my $path = $self->{path};
1237 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1418 my $guard = cf::lock_acquire "map_load:$path";
1238 1419
1239 return if $self->in_memory != cf::MAP_SWAPPED; 1420 return if $self->in_memory != cf::MAP_SWAPPED;
1240 1421
1241 $self->in_memory (cf::MAP_LOADING); 1422 $self->in_memory (cf::MAP_LOADING);
1242 1423
1243 $self->alloc; 1424 $self->alloc;
1425
1426 $self->pre_load;
1427
1244 $self->load_objects ($self->{load_path}, 1) 1428 $self->_load_objects ($self->{load_path}, 1)
1245 or return; 1429 or return;
1246 1430
1247 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1248 if delete $self->{load_original}; 1432 if delete $self->{load_original};
1249 1433
1250 if (my $uniq = $path->uniq_path) { 1434 if (my $uniq = $self->uniq_path) {
1251 utf8::encode $uniq; 1435 utf8::encode $uniq;
1252 if (aio_open $uniq, O_RDONLY, 0) { 1436 if (aio_open $uniq, O_RDONLY, 0) {
1253 $self->clear_unique_items; 1437 $self->clear_unique_items;
1254 $self->load_objects ($uniq, 0); 1438 $self->_load_objects ($uniq, 0);
1255 } 1439 }
1256 } 1440 }
1441
1442 Coro::cede;
1257 1443
1258 # now do the right thing for maps 1444 # now do the right thing for maps
1259 $self->link_multipart_objects; 1445 $self->link_multipart_objects;
1260 1446
1261 if ($self->{path}->is_style_map) { 1447 unless ($self->{deny_activate}) {
1262 $self->{deny_save} = 1; 1448 $self->decay_objects;
1263 $self->{deny_reset} = 1;
1264 } else {
1265 $self->fix_auto_apply; 1449 $self->fix_auto_apply;
1266 $self->decay_objects;
1267 $self->update_buttons; 1450 $self->update_buttons;
1451 Coro::cede;
1268 $self->set_darkness_map; 1452 $self->set_darkness_map;
1269 $self->difficulty ($self->estimate_difficulty) 1453 $self->difficulty ($self->estimate_difficulty)
1270 unless $self->difficulty; 1454 unless $self->difficulty;
1455 Coro::cede;
1271 $self->activate; 1456 $self->activate;
1272 } 1457 }
1273 1458
1459 $self->post_load;
1460
1274 $self->in_memory (cf::MAP_IN_MEMORY); 1461 $self->in_memory (cf::MAP_IN_MEMORY);
1275} 1462}
1276 1463
1277sub load_map_sync { 1464sub customise_for {
1465 my ($self, $ob) = @_;
1466
1467 return find "~" . $ob->name . "/" . $self->{path}
1468 if $self->per_player;
1469
1470 $self
1471}
1472
1473# find and load all maps in the 3x3 area around a map
1474sub load_diag {
1475 my ($map) = @_;
1476
1477 my @diag; # diagonal neighbours
1478
1479 for (0 .. 3) {
1480 my $neigh = $map->tile_path ($_)
1481 or next;
1482 $neigh = find $neigh, $map
1483 or next;
1484 $neigh->load;
1485
1486 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1487 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1488 }
1489
1490 for (@diag) {
1491 my $neigh = find @$_
1492 or next;
1493 $neigh->load;
1494 }
1495}
1496
1497sub find_sync {
1278 my ($path, $origin) = @_; 1498 my ($path, $origin) = @_;
1279 1499
1280 #warn "load_map_sync<$path, $origin>\n";#d# 1500 cf::sync_job { find $path, $origin }
1501}
1281 1502
1282 cf::sync_job { 1503sub do_load_sync {
1283 my $map = cf::map::find_map $path, $origin 1504 my ($map) = @_;
1284 or return; 1505
1506 cf::sync_job { $map->load };
1507}
1508
1509our %MAP_PREFETCH;
1510our $MAP_PREFETCHER = undef;
1511
1512sub find_async {
1513 my ($path, $origin) = @_;
1514
1515 $path = normalise $path, $origin && $origin->{path};
1516
1517 if (my $map = $cf::MAP{$path}) {
1518 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1519 }
1520
1521 undef $MAP_PREFETCH{$path};
1522 $MAP_PREFETCHER ||= cf::async {
1523 while (%MAP_PREFETCH) {
1524 for my $path (keys %MAP_PREFETCH) {
1525 my $map = find $path
1526 or next;
1285 $map->load; 1527 $map->load;
1286 $map 1528
1529 delete $MAP_PREFETCH{$path};
1530 }
1531 }
1532 undef $MAP_PREFETCHER;
1287 } 1533 };
1534 $MAP_PREFETCHER->prio (6);
1535
1536 ()
1288} 1537}
1289 1538
1290sub save { 1539sub save {
1291 my ($self) = @_; 1540 my ($self) = @_;
1292 1541
1542 my $lock = cf::lock_acquire "map_data:" . $self->path;
1543
1293 $self->{last_save} = $cf::RUNTIME; 1544 $self->{last_save} = $cf::RUNTIME;
1294 1545
1295 return unless $self->dirty; 1546 return unless $self->dirty;
1296 1547
1297 my $save = $self->{path}->save_path; utf8::encode $save; 1548 my $save = $self->save_path; utf8::encode $save;
1298 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1549 my $uniq = $self->uniq_path; utf8::encode $uniq;
1299 1550
1300 $self->{load_path} = $save; 1551 $self->{load_path} = $save;
1301 1552
1302 return if $self->{deny_save}; 1553 return if $self->{deny_save};
1303 1554
1555 local $self->{last_access} = $self->last_access;#d#
1556
1557 cf::async {
1558 $_->contr->save for $self->players;
1559 };
1560
1304 if ($uniq) { 1561 if ($uniq) {
1305 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1562 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306 $self->save_objects ($uniq, cf::IO_UNIQUES); 1563 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1307 } else { 1564 } else {
1308 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1565 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309 } 1566 }
1310} 1567}
1311 1568
1312sub swap_out { 1569sub swap_out {
1313 my ($self) = @_; 1570 my ($self) = @_;
1571
1572 # save first because save cedes
1573 $self->save;
1574
1575 my $lock = cf::lock_acquire "map_data:" . $self->path;
1314 1576
1315 return if $self->players; 1577 return if $self->players;
1316 return if $self->in_memory != cf::MAP_IN_MEMORY; 1578 return if $self->in_memory != cf::MAP_IN_MEMORY;
1317 return if $self->{deny_save}; 1579 return if $self->{deny_save};
1318 1580
1319 $self->save;
1320 $self->clear; 1581 $self->clear;
1321 $self->in_memory (cf::MAP_SWAPPED); 1582 $self->in_memory (cf::MAP_SWAPPED);
1322} 1583}
1323 1584
1324sub reset_at { 1585sub reset_at {
1325 my ($self) = @_; 1586 my ($self) = @_;
1326 1587
1327 # TODO: safety, remove and allow resettable per-player maps 1588 # TODO: safety, remove and allow resettable per-player maps
1328 return 1e99 if $self->{path}{user_rel}; 1589 return 1e99 if $self->isa ("ext::map_per_player");#d#
1329 return 1e99 if $self->{deny_reset}; 1590 return 1e99 if $self->{deny_reset};
1330 1591
1331 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1592 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1593 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333 1594
1338 my ($self) = @_; 1599 my ($self) = @_;
1339 1600
1340 $self->reset_at <= $cf::RUNTIME 1601 $self->reset_at <= $cf::RUNTIME
1341} 1602}
1342 1603
1343sub unlink_save {
1344 my ($self) = @_;
1345
1346 utf8::encode (my $save = $self->{path}->save_path);
1347 aioreq_pri 3; IO::AIO::aio_unlink $save;
1348 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349}
1350
1351sub rename {
1352 my ($self, $new_path) = @_;
1353
1354 $self->unlink_save;
1355
1356 delete $cf::MAP{$self->path};
1357 $self->{path} = new cf::path $new_path;
1358 $self->path ($self->{path}->as_string);
1359 $cf::MAP{$self->path} = $self;
1360
1361 $self->save;
1362}
1363
1364sub reset { 1604sub reset {
1365 my ($self) = @_; 1605 my ($self) = @_;
1366 1606
1607 my $lock = cf::lock_acquire "map_data:$self->{path}";
1608
1367 return if $self->players; 1609 return if $self->players;
1368 return if $self->{path}{user_rel};#d# 1610 return if $self->isa ("ext::map_per_player");#d#
1369 1611
1370 warn "resetting map ", $self->path;#d# 1612 warn "resetting map ", $self->path;#d#
1371 1613
1614 $self->in_memory (cf::MAP_SWAPPED);
1615
1616 # need to save uniques path
1617 unless ($self->{deny_save}) {
1618 my $uniq = $self->uniq_path; utf8::encode $uniq;
1619
1620 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1621 if $uniq;
1622 }
1623
1372 delete $cf::MAP{$self->path}; 1624 delete $cf::MAP{$self->path};
1625
1626 $self->clear;
1373 1627
1374 $_->clear_links_to ($self) for values %cf::MAP; 1628 $_->clear_links_to ($self) for values %cf::MAP;
1375 1629
1376 $self->unlink_save; 1630 $self->unlink_save;
1377 $self->destroy; 1631 $self->destroy;
1380my $nuke_counter = "aaaa"; 1634my $nuke_counter = "aaaa";
1381 1635
1382sub nuke { 1636sub nuke {
1383 my ($self) = @_; 1637 my ($self) = @_;
1384 1638
1639 delete $cf::MAP{$self->path};
1640
1641 $self->unlink_save;
1642
1643 bless $self, "cf::map";
1644 delete $self->{deny_reset};
1385 $self->{deny_save} = 1; 1645 $self->{deny_save} = 1;
1386 $self->reset_timeout (1); 1646 $self->reset_timeout (1);
1387 $self->rename ("{nuke}/" . ($nuke_counter++)); 1647 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648
1649 $cf::MAP{$self->path} = $self;
1650
1388 $self->reset; # polite request, might not happen 1651 $self->reset; # polite request, might not happen
1389} 1652}
1390 1653
1391sub customise_for { 1654=item cf::map::unique_maps
1392 my ($map, $ob) = @_;
1393 1655
1394 if ($map->per_player) { 1656Returns an arrayref of paths of all shared maps that have
1395 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1657instantiated unique items. May block.
1396 }
1397 1658
1398 $map 1659=cut
1399}
1400 1660
1401sub emergency_save { 1661sub unique_maps() {
1402 local $cf::FREEZE = 1; 1662 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1663 or return;
1403 1664
1404 warn "enter emergency map save\n"; 1665 my @paths;
1405 1666
1406 cf::sync_job { 1667 for (@$files) {
1407 warn "begin emergency map save\n"; 1668 utf8::decode $_;
1408 $_->save for values %cf::MAP; 1669 next if /\.pst$/;
1670 next unless /^$PATH_SEP/o;
1671
1672 push @paths, cf::map::normalise $_;
1409 }; 1673 }
1410 1674
1411 warn "end emergency map save\n"; 1675 \@paths
1412} 1676}
1413 1677
1414package cf; 1678package cf;
1415 1679
1416=back 1680=back
1417 1681
1682=head3 cf::object
1683
1684=cut
1685
1686package cf::object;
1687
1688=over 4
1689
1690=item $ob->inv_recursive
1691
1692Returns the inventory of the object _and_ their inventories, recursively.
1693
1694=cut
1695
1696sub inv_recursive_;
1697sub inv_recursive_ {
1698 map { $_, inv_recursive_ $_->inv } @_
1699}
1700
1701sub inv_recursive {
1702 inv_recursive_ inv $_[0]
1703}
1704
1705package cf;
1706
1707=back
1418 1708
1419=head3 cf::object::player 1709=head3 cf::object::player
1420 1710
1421=over 4 1711=over 4
1422 1712
1462 1752
1463=item $player_object->enter_link 1753=item $player_object->enter_link
1464 1754
1465Freezes the player and moves him/her to a special map (C<{link}>). 1755Freezes the player and moves him/her to a special map (C<{link}>).
1466 1756
1467The player should be reaosnably safe there for short amounts of time. You 1757The player should be reasonably safe there for short amounts of time. You
1468I<MUST> call C<leave_link> as soon as possible, though. 1758I<MUST> call C<leave_link> as soon as possible, though.
1469 1759
1760Will never block.
1761
1470=item $player_object->leave_link ($map, $x, $y) 1762=item $player_object->leave_link ($map, $x, $y)
1471 1763
1472Moves the player out of the specila link map onto the given map. If the 1764Moves the player out of the special C<{link}> map onto the specified
1473map is not valid (or omitted), the player will be moved back to the 1765map. If the map is not valid (or omitted), the player will be moved back
1474location he/she was before the call to C<enter_link>, or, if that fails, 1766to the location he/she was before the call to C<enter_link>, or, if that
1475to the emergency map position. 1767fails, to the emergency map position.
1476 1768
1477Might block. 1769Might block.
1478 1770
1479=cut 1771=cut
1772
1773sub link_map {
1774 unless ($LINK_MAP) {
1775 $LINK_MAP = cf::map::find "{link}"
1776 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1777 $LINK_MAP->load;
1778 }
1779
1780 $LINK_MAP
1781}
1480 1782
1481sub cf::object::player::enter_link { 1783sub cf::object::player::enter_link {
1482 my ($self) = @_; 1784 my ($self) = @_;
1483 1785
1484 $self->deactivate_recursive; 1786 $self->deactivate_recursive;
1485 1787
1486 return if $self->map == $LINK_MAP; 1788 return if UNIVERSAL::isa $self->map, "ext::map_link";
1487 1789
1488 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1790 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489 if $self->map; 1791 if $self->map;
1490 1792
1491 $self->enter_map ($LINK_MAP, 20, 20); 1793 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1492} 1794}
1493 1795
1494sub cf::object::player::leave_link { 1796sub cf::object::player::leave_link {
1495 my ($self, $map, $x, $y) = @_; 1797 my ($self, $map, $x, $y) = @_;
1496 1798
1497 my $link_pos = delete $self->{_link_pos}; 1799 my $link_pos = delete $self->{_link_pos};
1498 1800
1499 unless ($map) { 1801 unless ($map) {
1500 # restore original map position 1802 # restore original map position
1501 ($map, $x, $y) = @{ $link_pos || [] }; 1803 ($map, $x, $y) = @{ $link_pos || [] };
1502 $map = cf::map::find_map $map; 1804 $map = cf::map::find $map;
1503 1805
1504 unless ($map) { 1806 unless ($map) {
1505 ($map, $x, $y) = @$EMERGENCY_POSITION; 1807 ($map, $x, $y) = @$EMERGENCY_POSITION;
1506 $map = cf::map::find_map $map 1808 $map = cf::map::find $map
1507 or die "FATAL: cannot load emergency map\n"; 1809 or die "FATAL: cannot load emergency map\n";
1508 } 1810 }
1509 } 1811 }
1510 1812
1511 ($x, $y) = (-1, -1) 1813 ($x, $y) = (-1, -1)
1514 # use -1 or undef as default coordinates, not 0, 0 1816 # use -1 or undef as default coordinates, not 0, 0
1515 ($x, $y) = ($map->enter_x, $map->enter_y) 1817 ($x, $y) = ($map->enter_x, $map->enter_y)
1516 if $x <=0 && $y <= 0; 1818 if $x <=0 && $y <= 0;
1517 1819
1518 $map->load; 1820 $map->load;
1821 $map->load_diag;
1519 1822
1823 return unless $self->contr->active;
1520 $self->activate_recursive; 1824 $self->activate_recursive;
1521 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1522} 1826}
1523 1827
1524cf::player->attach ( 1828cf::player->attach (
1537 1841
1538 # try to abort aborted map switching on player login :) 1842 # try to abort aborted map switching on player login :)
1539 # should happen only on crashes 1843 # should happen only on crashes
1540 if ($pl->ob->{_link_pos}) { 1844 if ($pl->ob->{_link_pos}) {
1541 $pl->ob->enter_link; 1845 $pl->ob->enter_link;
1542 Coro::async { 1846 (async {
1543 # we need this sleep as the login has a concurrent enter_exit running 1847 # we need this sleep as the login has a concurrent enter_exit running
1544 # and this sleep increases chances of the player not ending up in scorn 1848 # and this sleep increases chances of the player not ending up in scorn
1849 $pl->ob->reply (undef,
1850 "There was an internal problem at your last logout, "
1851 . "the server will try to bring you to your intended destination in a second.",
1852 cf::NDI_RED);
1545 Coro::Timer::sleep 1; 1853 Coro::Timer::sleep 1;
1546 $pl->ob->leave_link; 1854 $pl->ob->leave_link;
1547 }; 1855 })->prio (2);
1548 } 1856 }
1549 }, 1857 },
1550); 1858);
1551 1859
1552=item $player_object->goto_map ($path, $x, $y) 1860=item $player_object->goto ($path, $x, $y)
1553 1861
1554=cut 1862=cut
1555 1863
1556sub cf::object::player::goto_map { 1864sub cf::object::player::goto {
1557 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1558 1866
1559 $self->enter_link; 1867 $self->enter_link;
1560 1868
1561 (Coro::async { 1869 (async {
1562 $path = new cf::path $path; 1870 my $map = eval {
1563
1564 my $map = cf::map::find_map $path->as_string; 1871 my $map = cf::map::find $path;
1565 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1566 1873 $map
1567# warn "entering ", $map->path, " at ($x, $y)\n" 1874 } or
1568# if $map;
1569
1570 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1875 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1571 1876
1572 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1573 })->prio (1); 1878 })->prio (1);
1574} 1879}
1575 1880
1579 1884
1580sub parse_random_map_params { 1885sub parse_random_map_params {
1581 my ($spec) = @_; 1886 my ($spec) = @_;
1582 1887
1583 my $rmp = { # defaults 1888 my $rmp = { # defaults
1584 xsize => 10, 1889 xsize => (cf::rndm 15, 40),
1585 ysize => 10, 1890 ysize => (cf::rndm 15, 40),
1891 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1892 #layout => string,
1586 }; 1893 };
1587 1894
1588 for (split /\n/, $spec) { 1895 for (split /\n/, $spec) {
1589 my ($k, $v) = split /\s+/, $_, 2; 1896 my ($k, $v) = split /\s+/, $_, 2;
1590 1897
1594 $rmp 1901 $rmp
1595} 1902}
1596 1903
1597sub prepare_random_map { 1904sub prepare_random_map {
1598 my ($exit) = @_; 1905 my ($exit) = @_;
1906
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1599 1908
1600 # all this does is basically replace the /! path by 1909 # all this does is basically replace the /! path by
1601 # a new random map path (?random/...) with a seed 1910 # a new random map path (?random/...) with a seed
1602 # that depends on the exit object 1911 # that depends on the exit object
1603 1912
1604 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1605 1914
1606 if ($exit->map) { 1915 if ($exit->map) {
1607 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1608 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1609 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1610 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1611 } 1920 }
1612 1921
1613 $rmp->{random_seed} ||= $exit->random_seed; 1922 $rmp->{random_seed} ||= $exit->random_seed;
1614 1923
1615 my $data = cf::to_json $rmp; 1924 my $data = cf::to_json $rmp;
1616 my $md5 = Digest::MD5::md5_hex $data; 1925 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1617 1927
1618 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1928 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619 aio_write $fh, 0, (length $data), $data, 0; 1929 aio_write $fh, 0, (length $data), $data, 0;
1930 undef $fh;
1931 aio_rename "$meta~", $meta;
1620 1932
1621 $exit->slaying ("?random/$md5"); 1933 $exit->slaying ("?random/$md5");
1622 $exit->msg (undef); 1934 $exit->msg (undef);
1623 } 1935 }
1624} 1936}
1626sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1627 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1628 1940
1629 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1630 1942
1943 if ($exit->slaying eq "/!") {
1944 #TODO: this should de-fi-ni-te-ly not be a sync-job
1945 cf::sync_job { prepare_random_map $exit };
1946 }
1947
1948 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949 my $hp = $exit->stats->hp;
1950 my $sp = $exit->stats->sp;
1951
1631 $self->enter_link; 1952 $self->enter_link;
1632 1953
1633 (Coro::async { 1954 (async {
1955 $self->deactivate_recursive; # just to be sure
1634 unless (eval { 1956 unless (eval {
1635 1957 $self->goto ($slaying, $hp, $sp);
1636 prepare_random_map $exit
1637 if $exit->slaying eq "/!";
1638
1639 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1640 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1641 1958
1642 1; 1959 1;
1643 }) { 1960 }) {
1644 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1645 . "I'll try to bring you back to the map you were before. " 1962 . "I'll try to bring you back to the map you were before. "
1646 . "Please report this to the dungeon master", 1963 . "Please report this to the dungeon master!",
1647 cf::NDI_UNIQUE | cf::NDI_RED); 1964 cf::NDI_UNIQUE | cf::NDI_RED);
1648 1965
1649 warn "ERROR in enter_exit: $@"; 1966 warn "ERROR in enter_exit: $@";
1650 $self->leave_link; 1967 $self->leave_link;
1651 } 1968 }
1702 on_reply => sub { 2019 on_reply => sub {
1703 my ($ns, $msg) = @_; 2020 my ($ns, $msg) = @_;
1704 2021
1705 # this weird shuffling is so that direct followup queries 2022 # this weird shuffling is so that direct followup queries
1706 # get handled first 2023 # get handled first
1707 my $queue = delete $ns->{query_queue}; 2024 my $queue = delete $ns->{query_queue}
2025 or return; # be conservative, not sure how that can happen, but we saw a crash here
1708 2026
1709 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710 2029
1711 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1712 2031
1713 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1714 if (@$queue) { 2033 if (@$queue) {
1718 } 2037 }
1719 } 2038 }
1720 }, 2039 },
1721); 2040);
1722 2041
1723=item $client->coro (\&cb) 2042=item $client->async (\&cb)
1724 2043
1725Create a new coroutine, running the specified callback. The coroutine will 2044Create a new coroutine, running the specified callback. The coroutine will
1726be automatically cancelled when the client gets destroyed (e.g. on logout, 2045be automatically cancelled when the client gets destroyed (e.g. on logout,
1727or loss of connection). 2046or loss of connection).
1728 2047
1729=cut 2048=cut
1730 2049
1731sub cf::client::coro { 2050sub cf::client::async {
1732 my ($self, $cb) = @_; 2051 my ($self, $cb) = @_;
1733 2052
1734 my $coro; $coro = async { 2053 my $coro = &Coro::async ($cb);
1735 eval {
1736 $cb->();
1737 };
1738 warn $@ if $@;
1739 };
1740 2054
1741 $coro->on_destroy (sub { 2055 $coro->on_destroy (sub {
1742 delete $self->{_coro}{$coro+0}; 2056 delete $self->{_coro}{$coro+0};
1743 }); 2057 });
1744 2058
1880The parameter C<$family> should best start with the name of the extension 2194The parameter C<$family> should best start with the name of the extension
1881using it, it should be unique. 2195using it, it should be unique.
1882 2196
1883=over 4 2197=over 4
1884 2198
1885=item $hashref = cf::db_get $family
1886
1887Return a hashref for use by the extension C<$family>, which can be
1888modified. After modifications, you have to call C<cf::db_dirty> or
1889C<cf::db_sync>.
1890
1891=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
1892 2200
1893Returns a single value from the database 2201Returns a single value from the database.
1894
1895=item cf::db_put $family => $hashref
1896
1897Stores the given family hashref into the database. Updates are delayed, if
1898you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899 2202
1900=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
1901 2204
1902Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
1903want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905=item cf::db_dirty
1906
1907Marks the database as dirty, to be updated at a later time.
1908
1909=item cf::db_sync
1910
1911Immediately write the database to disk I<if it is dirty>.
1912 2206
1913=cut 2207=cut
1914 2208
1915our $DB; 2209our $DB;
1916 2210
1917{ 2211sub db_init {
2212 unless ($DB) {
2213 $DB = BDB::db_create $DB_ENV;
2214
2215 cf::sync_job {
2216 eval {
2217 $DB->set_flags (BDB::CHKSUM);
2218
2219 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221 cf::cleanup "db_open(db): $!" if $!;
2222 };
2223 cf::cleanup "db_open(db): $@" if $@;
2224 };
2225
1918 my $path = cf::localdir . "/database.pst"; 2226 my $path = cf::localdir . "/database.pst";
2227 if (stat $path) {
2228 cf::sync_job {
2229 my $pst = Storable::retrieve $path;
1919 2230
1920 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
1921 $DB = stat $path ? Storable::retrieve $path : { }; 2232 cf::db_put (guildrules => data => $pst->{guildrules});
1922 } 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
1923 2235
1924 my $pid; 2236 unlink $path;
1925
1926 sub db_save() {
1927 waitpid $pid, 0 if $pid;
1928 if (0 == ($pid = fork)) {
1929 $DB->{_meta}{version} = 1;
1930 Storable::nstore $DB, "$path~";
1931 rename "$path~", $path;
1932 cf::_exit 0 if defined $pid;
1933 } 2237 };
1934 }
1935
1936 my $dirty;
1937
1938 sub db_sync() {
1939 db_save if $dirty;
1940 undef $dirty;
1941 }
1942
1943 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944 db_sync;
1945 });
1946
1947 sub db_dirty() {
1948 $dirty = 1;
1949 $idle->start;
1950 }
1951
1952 sub db_get($;$) {
1953 @_ >= 2
1954 ? $DB->{$_[0]}{$_[1]}
1955 : ($DB->{$_[0]} ||= { })
1956 }
1957
1958 sub db_put($$;$) {
1959 if (@_ >= 3) {
1960 $DB->{$_[0]}{$_[1]} = $_[2];
1961 } else {
1962 $DB->{$_[0]} = $_[1];
1963 }
1964 db_dirty;
1965 }
1966
1967 cf::global->attach (
1968 prio => 10000,
1969 on_cleanup => sub {
1970 db_sync;
1971 }, 2238 }
1972 ); 2239 }
2240}
2241
2242sub db_get($$) {
2243 my $key = "$_[0]/$_[1]";
2244
2245 cf::sync_job {
2246 BDB::db_get $DB, undef, $key, my $data;
2247
2248 $! ? ()
2249 : Compress::LZF::sthaw $data
2250 }
2251}
2252
2253sub db_put($$$) {
2254 BDB::dbreq_pri 4;
2255 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1973} 2256}
1974 2257
1975############################################################################# 2258#############################################################################
1976# the server's main() 2259# the server's init and main functions
2260
2261sub load_resources {
2262 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2263 or die "unable to load regions file\n";#d#
2264}
1977 2265
1978sub cfg_load { 2266sub cfg_load {
1979 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
1980 or return; 2268 or return;
1981 2269
1982 local $/; 2270 local $/;
1983 *CFG = YAML::Syck::Load <$fh>; 2271 *CFG = YAML::Syck::Load <$fh>;
2272
2273 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2274
2275 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2276 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2277
2278 if (exists $CFG{mlockall}) {
2279 eval {
2280 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2281 and die "WARNING: m(un)lockall failed: $!\n";
2282 };
2283 warn $@ if $@;
2284 }
2285}
2286
2287sub init {
2288 load_resources;
1984} 2289}
1985 2290
1986sub main { 2291sub main {
1987 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
1988 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
1989 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2294 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990 (Coro::unblock_sub { 2295 (async {
1991 Event::one_event; 2296 Event::one_event;
1992 })->(); 2297 })->prio (Coro::PRIO_MAX);
1993 }; 2298 };
1994 2299
1995 cfg_load; 2300 cfg_load;
1996 db_load; 2301 db_init;
1997 load_extensions; 2302 load_extensions;
2303
2304 $TICK_WATCHER->start;
2305 $WRITE_RUNTIME_WATCHER->start;
1998 Event::loop; 2306 Event::loop;
1999} 2307}
2000 2308
2001############################################################################# 2309#############################################################################
2002# initialisation 2310# initialisation and cleanup
2311
2312# install some emergency cleanup handlers
2313BEGIN {
2314 for my $signal (qw(INT HUP TERM)) {
2315 Event->signal (
2316 reentrant => 0,
2317 data => WF_AUTOCANCEL,
2318 signal => $signal,
2319 prio => 0,
2320 cb => sub {
2321 cf::cleanup "SIG$signal";
2322 },
2323 );
2324 }
2325}
2326
2327sub emergency_save() {
2328 my $freeze_guard = cf::freeze_mainloop;
2329
2330 warn "enter emergency perl save\n";
2331
2332 cf::sync_job {
2333 # use a peculiar iteration method to avoid tripping on perl
2334 # refcount bugs in for. also avoids problems with players
2335 # and maps saved/destroyed asynchronously.
2336 warn "begin emergency player save\n";
2337 for my $login (keys %cf::PLAYER) {
2338 my $pl = $cf::PLAYER{$login} or next;
2339 $pl->valid or next;
2340 $pl->save;
2341 }
2342 warn "end emergency player save\n";
2343
2344 warn "begin emergency map save\n";
2345 for my $path (keys %cf::MAP) {
2346 my $map = $cf::MAP{$path} or next;
2347 $map->valid or next;
2348 $map->save;
2349 }
2350 warn "end emergency map save\n";
2351
2352 warn "begin emergency database checkpoint\n";
2353 BDB::db_env_txn_checkpoint $DB_ENV;
2354 warn "end emergency database checkpoint\n";
2355 };
2356
2357 warn "leave emergency perl save\n";
2358}
2359
2360sub post_cleanup {
2361 my ($make_core) = @_;
2362
2363 warn Carp::longmess "post_cleanup backtrace"
2364 if $make_core;
2365}
2003 2366
2004sub reload() { 2367sub reload() {
2005 # can/must only be called in main 2368 # can/must only be called in main
2006 if ($Coro::current != $Coro::main) { 2369 if ($Coro::current != $Coro::main) {
2007 warn "can only reload from main coroutine\n"; 2370 warn "can only reload from main coroutine";
2008 return; 2371 return;
2009 } 2372 }
2010 2373
2011 warn "reloading..."; 2374 warn "reloading...";
2012 2375
2013 local $FREEZE = 1; 2376 warn "entering sync_job";
2377
2378 cf::sync_job {
2379 cf::write_runtime;
2014 cf::emergency_save; 2380 cf::emergency_save;
2381 cf::write_runtime;
2015 2382
2016 eval { 2383 warn "syncing database to disk";
2384 BDB::db_env_txn_checkpoint $DB_ENV;
2385
2017 # if anything goes wrong in here, we should simply crash as we already saved 2386 # if anything goes wrong in here, we should simply crash as we already saved
2018 2387
2019 # cancel all watchers 2388 warn "cancelling all WF_AUTOCANCEL watchers";
2020 for (Event::all_watchers) { 2389 for (Event::all_watchers) {
2021 $_->cancel if $_->data & WF_AUTOCANCEL; 2390 $_->cancel if $_->data & WF_AUTOCANCEL;
2022 } 2391 }
2023 2392
2393 warn "flushing outstanding aio requests";
2394 for (;;) {
2395 BDB::flush;
2396 IO::AIO::flush;
2397 Coro::cede;
2398 last unless IO::AIO::nreqs || BDB::nreqs;
2399 warn "iterate...";
2400 }
2401
2024 # cancel all extension coros 2402 warn "cancelling all extension coros";
2025 $_->cancel for values %EXT_CORO; 2403 $_->cancel for values %EXT_CORO;
2026 %EXT_CORO = (); 2404 %EXT_CORO = ();
2027 2405
2028 # unload all extensions 2406 warn "removing commands";
2029 for (@exts) { 2407 %COMMAND = ();
2408
2409 warn "removing ext commands";
2410 %EXTCMD = ();
2411
2412 warn "unloading/nuking all extensions";
2413 for my $pkg (@EXTS) {
2030 warn "unloading <$_>"; 2414 warn "... unloading $pkg";
2031 unload_extension $_; 2415
2416 if (my $cb = $pkg->can ("unload")) {
2417 eval {
2418 $cb->($pkg);
2419 1
2420 } or warn "$pkg unloaded, but with errors: $@";
2032 } 2421 }
2033 2422
2423 warn "... nuking $pkg";
2424 Symbol::delete_package $pkg;
2425 }
2426
2034 # unload all modules loaded from $LIBDIR 2427 warn "unloading all perl modules loaded from $LIBDIR";
2035 while (my ($k, $v) = each %INC) { 2428 while (my ($k, $v) = each %INC) {
2036 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2429 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037 2430
2038 warn "removing <$k>"; 2431 warn "... unloading $k";
2039 delete $INC{$k}; 2432 delete $INC{$k};
2040 2433
2041 $k =~ s/\.pm$//; 2434 $k =~ s/\.pm$//;
2042 $k =~ s/\//::/g; 2435 $k =~ s/\//::/g;
2043 2436
2046 } 2439 }
2047 2440
2048 Symbol::delete_package $k; 2441 Symbol::delete_package $k;
2049 } 2442 }
2050 2443
2051 # sync database to disk
2052 cf::db_sync;
2053 IO::AIO::flush;
2054
2055 # get rid of safe::, as good as possible 2444 warn "getting rid of safe::, as good as possible";
2056 Symbol::delete_package "safe::$_" 2445 Symbol::delete_package "safe::$_"
2057 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2446 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058 2447
2059 # remove register_script_function callbacks
2060 # TODO
2061
2062 # unload cf.pm "a bit" 2448 warn "unloading cf.pm \"a bit\"";
2063 delete $INC{"cf.pm"}; 2449 delete $INC{"cf.pm"};
2064 2450
2065 # don't, removes xs symbols, too, 2451 # don't, removes xs symbols, too,
2066 # and global variables created in xs 2452 # and global variables created in xs
2067 #Symbol::delete_package __PACKAGE__; 2453 #Symbol::delete_package __PACKAGE__;
2068 2454
2069 # reload cf.pm 2455 warn "unload completed, starting to reload now";
2456
2070 warn "reloading cf.pm"; 2457 warn "reloading cf.pm";
2071 require cf; 2458 require cf;
2072 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2459 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073 2460
2074 # load config and database again 2461 warn "loading config and database again";
2075 cf::cfg_load; 2462 cf::cfg_load;
2076 cf::db_load;
2077 2463
2078 # load extensions
2079 warn "load extensions"; 2464 warn "loading extensions";
2080 cf::load_extensions; 2465 cf::load_extensions;
2081 2466
2082 # reattach attachments to objects 2467 warn "reattaching attachments to objects/players";
2083 warn "reattach";
2084 _global_reattach; 2468 _global_reattach;
2085 }; 2469 warn "reattaching attachments to maps";
2470 reattach $_ for values %MAP;
2086 2471
2087 if ($@) { 2472 warn "loading reloadable resources";
2473 load_resources;
2474
2475 warn "leaving sync_job";
2476
2477 1
2478 } or do {
2088 warn $@; 2479 warn $@;
2089 warn "error while reloading, exiting."; 2480 warn "error while reloading, exiting.";
2090 exit 1; 2481 exit 1;
2091 } 2482 };
2092 2483
2093 warn "reloaded successfully"; 2484 warn "reloaded";
2094}; 2485};
2095 2486
2096############################################################################# 2487our $RELOAD_WATCHER; # used only during reload
2097
2098unless ($LINK_MAP) {
2099 $LINK_MAP = cf::map::new;
2100
2101 $LINK_MAP->width (41);
2102 $LINK_MAP->height (41);
2103 $LINK_MAP->alloc;
2104 $LINK_MAP->path ("{link}");
2105 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108 # dirty hack because... archetypes are not yet loaded
2109 Event->timer (
2110 after => 2,
2111 cb => sub {
2112 $_[0]->w->cancel;
2113
2114 # provide some exits "home"
2115 my $exit = cf::object::new "exit";
2116
2117 $exit->slaying ($EMERGENCY_POSITION->[0]);
2118 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121 $LINK_MAP->insert ($exit->clone, 19, 19);
2122 $LINK_MAP->insert ($exit->clone, 19, 20);
2123 $LINK_MAP->insert ($exit->clone, 19, 21);
2124 $LINK_MAP->insert ($exit->clone, 20, 19);
2125 $LINK_MAP->insert ($exit->clone, 20, 21);
2126 $LINK_MAP->insert ($exit->clone, 21, 19);
2127 $LINK_MAP->insert ($exit->clone, 21, 20);
2128 $LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130 $exit->destroy;
2131 });
2132
2133 $LINK_MAP->{deny_save} = 1;
2134 $LINK_MAP->{deny_reset} = 1;
2135
2136 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137}
2138
2139register "<global>", __PACKAGE__;
2140 2488
2141register_command "reload" => sub { 2489register_command "reload" => sub {
2142 my ($who, $arg) = @_; 2490 my ($who, $arg) = @_;
2143 2491
2144 if ($who->flag (FLAG_WIZ)) { 2492 if ($who->flag (FLAG_WIZ)) {
2145 $who->message ("start of reload."); 2493 $who->message ("reloading server.");
2494
2495 # doing reload synchronously and two reloads happen back-to-back,
2496 # coro crashes during coro_state_free->destroy here.
2497
2498 $RELOAD_WATCHER ||= Event->timer (
2499 reentrant => 0,
2500 after => 0,
2501 data => WF_AUTOCANCEL,
2502 cb => sub {
2146 reload; 2503 reload;
2147 $who->message ("end of reload."); 2504 undef $RELOAD_WATCHER;
2505 },
2506 );
2148 } 2507 }
2149}; 2508};
2150 2509
2151unshift @INC, $LIBDIR; 2510unshift @INC, $LIBDIR;
2511
2512my $bug_warning = 0;
2152 2513
2153$TICK_WATCHER = Event->timer ( 2514$TICK_WATCHER = Event->timer (
2154 reentrant => 0, 2515 reentrant => 0,
2516 parked => 1,
2155 prio => 0, 2517 prio => 0,
2156 at => $NEXT_TICK || $TICK, 2518 at => $NEXT_TICK || $TICK,
2157 data => WF_AUTOCANCEL, 2519 data => WF_AUTOCANCEL,
2158 cb => sub { 2520 cb => sub {
2159 unless ($FREEZE) { 2521 if ($Coro::current != $Coro::main) {
2522 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2523 unless ++$bug_warning > 10;
2524 return;
2525 }
2526
2527 $NOW = Event::time;
2528
2160 cf::server_tick; # one server iteration 2529 cf::server_tick; # one server iteration
2161 $RUNTIME += $TICK; 2530 $RUNTIME += $TICK;
2162 }
2163
2164 $NEXT_TICK += $TICK; 2531 $NEXT_TICK += $TICK;
2532
2533 $WAIT_FOR_TICK->broadcast;
2534 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2535
2536# my $AFTER = Event::time;
2537# warn $AFTER - $NOW;#d#
2165 2538
2166 # if we are delayed by four ticks or more, skip them all 2539 # if we are delayed by four ticks or more, skip them all
2167 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2540 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2168 2541
2169 $TICK_WATCHER->at ($NEXT_TICK); 2542 $TICK_WATCHER->at ($NEXT_TICK);
2170 $TICK_WATCHER->start; 2543 $TICK_WATCHER->start;
2171 }, 2544 },
2172); 2545);
2173 2546
2547{
2548 BDB::max_poll_time $TICK * 0.1;
2549 $BDB_POLL_WATCHER = Event->io (
2550 reentrant => 0,
2551 fd => BDB::poll_fileno,
2552 poll => 'r',
2553 prio => 0,
2554 data => WF_AUTOCANCEL,
2555 cb => \&BDB::poll_cb,
2556 );
2557 BDB::min_parallel 8;
2558
2559 BDB::set_sync_prepare {
2560 my $status;
2561 my $current = $Coro::current;
2562 (
2563 sub {
2564 $status = $!;
2565 $current->ready; undef $current;
2566 },
2567 sub {
2568 Coro::schedule while defined $current;
2569 $! = $status;
2570 },
2571 )
2572 };
2573
2574 unless ($DB_ENV) {
2575 $DB_ENV = BDB::db_env_create;
2576
2577 cf::sync_job {
2578 eval {
2579 BDB::db_env_open
2580 $DB_ENV,
2581 $BDB_ENV_DIR,
2582 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2583 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2584 0666;
2585
2586 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2587
2588 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2589 $DB_ENV->set_lk_detect;
2590 };
2591
2592 cf::cleanup "db_env_open(db): $@" if $@;
2593 };
2594 }
2595}
2596
2597{
2598 IO::AIO::min_parallel 8;
2599
2600 undef $Coro::AIO::WATCHER;
2174IO::AIO::max_poll_time $TICK * 0.2; 2601 IO::AIO::max_poll_time $TICK * 0.1;
2175 2602 $AIO_POLL_WATCHER = Event->io (
2176Event->io ( 2603 reentrant => 0,
2177 fd => IO::AIO::poll_fileno, 2604 fd => IO::AIO::poll_fileno,
2178 poll => 'r', 2605 poll => 'r',
2179 prio => 5, 2606 prio => 6,
2180 data => WF_AUTOCANCEL, 2607 data => WF_AUTOCANCEL,
2181 cb => \&IO::AIO::poll_cb, 2608 cb => \&IO::AIO::poll_cb,
2182); 2609 );
2610}
2183 2611
2184Event->timer ( 2612$WRITE_RUNTIME_WATCHER = Event->timer (
2613 reentrant => 0,
2185 data => WF_AUTOCANCEL, 2614 data => WF_AUTOCANCEL,
2615 parked => 1,
2186 after => 0, 2616 after => 1,
2187 interval => 10, 2617 interval => 10,
2618 prio => 6, # keep it lowest so it acts like a watchdog
2188 cb => sub { 2619 cb => sub {
2189 (Coro::unblock_sub { 2620 $TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
2621
2622 Coro::async_pool {
2190 write_runtime 2623 write_runtime
2191 or warn "ERROR: unable to write runtime file: $!"; 2624 or warn "ERROR: unable to write runtime file: $!";
2192 })->(); 2625 };
2193 }, 2626 },
2194); 2627);
2195 2628
2196END { cf::emergency_save } 2629END { cf::emergency_save }
2197 2630

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