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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 2007 UTC vs.
Revision 1.215 by root, Thu Feb 15 03:19:02 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 $NEXT_RUNTIME_WRITE; # when should the runtime file be written
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 };
279 $TICK_WATCHER->stop;
280 $guard
281}
282
283=item cf::async { BLOCK }
284
285Currently the same as Coro::async_pool, meaning you cannot use
286C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287thing you are allowed to do is call C<prio> on it.
288
289=cut
290
291BEGIN { *async = \&Coro::async_pool }
249 292
250=item cf::sync_job { BLOCK } 293=item cf::sync_job { BLOCK }
251 294
252The design of crossfire+ requires that the main coro ($Coro::main) is 295The design of crossfire+ requires that the main coro ($Coro::main) is
253always able to handle events or runnable, as crossfire+ is only partly 296always able to handle events or runnable, as crossfire+ is only partly
267 # this is the main coro, too bad, we have to block 310 # this is the main coro, too bad, we have to block
268 # till the operation succeeds, freezing the server :/ 311 # till the operation succeeds, freezing the server :/
269 312
270 # TODO: use suspend/resume instead 313 # TODO: use suspend/resume instead
271 # (but this is cancel-safe) 314 # (but this is cancel-safe)
272 local $FREEZE = 1; 315 my $freeze_guard = freeze_mainloop;
273 316
274 my $busy = 1; 317 my $busy = 1;
275 my @res; 318 my @res;
276 319
277 (Coro::async { 320 (async {
278 @res = eval { $job->() }; 321 @res = eval { $job->() };
279 warn $@ if $@; 322 warn $@ if $@;
280 undef $busy; 323 undef $busy;
281 })->prio (Coro::PRIO_MAX); 324 })->prio (Coro::PRIO_MAX);
282 325
283 while ($busy) { 326 while ($busy) {
284 Coro::cede_notself; 327 Coro::cede or Event::one_event;
285 Event::one_event unless Coro::nready;
286 } 328 }
287 329
288 wantarray ? @res : $res[0] 330 wantarray ? @res : $res[0]
289 } else { 331 } else {
290 # we are in another coroutine, how wonderful, everything just works 332 # we are in another coroutine, how wonderful, everything just works
291 333
292 $job->() 334 $job->()
293 } 335 }
294} 336}
295 337
296=item $coro = cf::coro { BLOCK } 338=item $coro = cf::async_ext { BLOCK }
297 339
298Creates and returns a new coro. This coro is automcatially being canceled 340Like async, but this coro is automatically being canceled when the
299when the extension calling this is being unloaded. 341extension calling this is being unloaded.
300 342
301=cut 343=cut
302 344
303sub coro(&) { 345sub async_ext(&) {
304 my $cb = shift; 346 my $cb = shift;
305 347
306 my $coro; $coro = async { 348 my $coro = &Coro::async ($cb);
307 eval {
308 $cb->();
309 };
310 warn $@ if $@;
311 };
312 349
313 $coro->on_destroy (sub { 350 $coro->on_destroy (sub {
314 delete $EXT_CORO{$coro+0}; 351 delete $EXT_CORO{$coro+0};
315 }); 352 });
316 $EXT_CORO{$coro+0} = $coro; 353 $EXT_CORO{$coro+0} = $coro;
322 my $runtime = cf::localdir . "/runtime"; 359 my $runtime = cf::localdir . "/runtime";
323 360
324 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 361 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325 or return; 362 or return;
326 363
364 my $value = $cf::RUNTIME + 90 + 10;
327 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 365 # 10 is the runtime save interval, for a monotonic clock
366 # 60 allows for the watchdog to kill the server.
367
328 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
329 and return; 369 and return;
330 370
371 # always fsync - this file is important
331 aio_fsync $fh 372 aio_fsync $fh
332 and return; 373 and return;
333 374
334 close $fh 375 close $fh
335 or return; 376 or return;
341} 382}
342 383
343=back 384=back
344 385
345=cut 386=cut
346
347#############################################################################
348
349package cf::path;
350
351sub new {
352 my ($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;
466 387
467############################################################################# 388#############################################################################
468 389
469=head2 ATTACHABLE OBJECTS 390=head2 ATTACHABLE OBJECTS
470 391
596our @CB_TYPE = (); # registry for type (cf-object class) based events 517our @CB_TYPE = (); # registry for type (cf-object class) based events
597our @CB_MAP = (); 518our @CB_MAP = ();
598 519
599my %attachment; 520my %attachment;
600 521
522sub cf::attachable::thawer_merge {
523 # simply override everything except _meta
524 local $_[0]{_meta};
525 %{$_[0]} = %{$_[1]};
526}
527
601sub _attach_cb($$$$) { 528sub _attach_cb($$$$) {
602 my ($registry, $event, $prio, $cb) = @_; 529 my ($registry, $event, $prio, $cb) = @_;
603 530
604 use sort 'stable'; 531 use sort 'stable';
605 532
776# object support 703# object support
777 704
778sub reattach { 705sub reattach {
779 # basically do the same as instantiate, without calling instantiate 706 # basically do the same as instantiate, without calling instantiate
780 my ($obj) = @_; 707 my ($obj) = @_;
708
709 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781 710
782 my $registry = $obj->registry; 711 my $registry = $obj->registry;
783 712
784 @$registry = (); 713 @$registry = ();
785 714
832 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
833 762
834 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
836 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
838 close $fh; 767 close $fh;
839 768
840 if (@$objs) { 769 if (@$objs) {
841 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
843 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
844 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
845 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
846 close $fh; 775 close $fh;
847 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
848 } 777 }
849 } else { 778 } else {
850 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
856 } 785 }
857 } else { 786 } else {
858 aio_unlink $filename; 787 aio_unlink $filename;
859 aio_unlink "$filename.pst"; 788 aio_unlink "$filename.pst";
860 } 789 }
790
791 #d##TODO# nuke non .map-files if exist
792 if ($filename =~ s/\.map$//) {
793 aio_unlink $filename;
794 aio_unlink "$filename.pst";
795 }
861 } 796 }
862} 797}
863 798
864sub object_freezer_as_string { 799sub object_freezer_as_string {
865 my ($rdata, $objs) = @_; 800 my ($rdata, $objs) = @_;
871 806
872sub object_thawer_load { 807sub object_thawer_load {
873 my ($filename) = @_; 808 my ($filename) = @_;
874 809
875 my ($data, $av); 810 my ($data, $av);
811
812 #d#TODO remove .map if file does not exist
813 aio_stat $filename and $filename =~ s/\.map$//;
876 814
877 (aio_load $filename, $data) >= 0 815 (aio_load $filename, $data) >= 0
878 or return; 816 or return;
879 817
880 unless (aio_stat "$filename.pst") { 818 unless (aio_stat "$filename.pst") {
917=cut 855=cut
918 856
919sub register_extcmd { 857sub register_extcmd {
920 my ($name, $cb) = @_; 858 my ($name, $cb) = @_;
921 859
922 my $caller = caller;
923 #warn "registering extcmd '$name' to '$caller'";
924
925 $EXTCMD{$name} = [$cb, $caller]; 860 $EXTCMD{$name} = $cb;
926} 861}
927 862
928cf::player->attach ( 863cf::player->attach (
929 on_command => sub { 864 on_command => sub {
930 my ($pl, $name, $params) = @_; 865 my ($pl, $name, $params) = @_;
943 878
944 my $msg = eval { from_json $buf }; 879 my $msg = eval { from_json $buf };
945 880
946 if (ref $msg) { 881 if (ref $msg) {
947 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 882 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948 if (my %reply = $cb->[0]->($pl, $msg)) { 883 if (my %reply = $cb->($pl, $msg)) {
949 $pl->ext_reply ($msg->{msgid}, %reply); 884 $pl->ext_reply ($msg->{msgid}, %reply);
950 } 885 }
951 } 886 }
952 } else { 887 } else {
953 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 888 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
955 890
956 cf::override; 891 cf::override;
957 }, 892 },
958); 893);
959 894
960sub register {
961 my ($base, $pkg) = @_;
962
963 #TODO
964}
965
966sub load_extension { 895sub load_extension {
967 my ($path) = @_; 896 my ($path) = @_;
968 897
969 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 898 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
970 my $base = $1; 899 my $base = $1;
971 my $pkg = $1; 900 my $pkg = $1;
972 $pkg =~ s/[^[:word:]]/_/g; 901 $pkg =~ s/[^[:word:]]/_/g;
973 $pkg = "ext::$pkg"; 902 $pkg = "ext::$pkg";
974 903
975 warn "loading '$path' into '$pkg'\n"; 904 warn "... loading '$path' into '$pkg'\n";
976 905
977 open my $fh, "<:utf8", $path 906 open my $fh, "<:utf8", $path
978 or die "$path: $!"; 907 or die "$path: $!";
979 908
980 my $source = 909 my $source =
981 "package $pkg; use strict; use utf8;\n" 910 "package $pkg; use strict; use utf8;\n"
982 . "#line 1 \"$path\"\n{\n" 911 . "#line 1 \"$path\"\n{\n"
983 . (do { local $/; <$fh> }) 912 . (do { local $/; <$fh> })
984 . "\n};\n1"; 913 . "\n};\n1";
985 914
986 eval $source 915 unless (eval $source) {
987 or die $@ ? "$path: $@\n" 916 my $msg = $@ ? "$path: $@\n"
988 : "extension disabled.\n"; 917 : "extension disabled.\n";
989 918 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990 push @exts, $pkg; 919 warn $@;
991 $ext_pkg{$base} = $pkg; 920 warn "mandatory extension failed to load, exiting.\n";
992 921 exit 1;
993# no strict 'refs'; 922 }
994# @{"$pkg\::ISA"} = ext::; 923 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# } 924 }
1009 925
1010 # remove commands 926 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} 927}
1035 928
1036sub load_extensions { 929sub load_extensions {
1037 for my $ext (<$LIBDIR/*.ext>) { 930 for my $ext (<$LIBDIR/*.ext>) {
1038 next unless -r $ext; 931 next unless -r $ext;
1042 } or warn "$ext not loaded: $@"; 935 } or warn "$ext not loaded: $@";
1043 } 936 }
1044} 937}
1045 938
1046############################################################################# 939#############################################################################
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 940
1084=head2 CORE EXTENSIONS 941=head2 CORE EXTENSIONS
1085 942
1086Functions and methods that extend core crossfire objects. 943Functions and methods that extend core crossfire objects.
1087 944
945=cut
946
947package cf::player;
948
949use Coro::AIO;
950
1088=head3 cf::player 951=head3 cf::player
1089 952
1090=over 4 953=over 4
1091 954
1092=item cf::player::exists $login 955=item cf::player::find $login
1093 956
1094Returns true when the given account exists. 957Returns the given player object, loading it if necessary (might block).
1095 958
1096=cut 959=cut
1097 960
1098sub cf::player::exists($) { 961sub playerdir($) {
1099 cf::player::find $_[0] 962 cf::localdir
1100 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 963 . "/"
964 . cf::playerdir
965 . "/"
966 . (ref $_[0] ? $_[0]->ob->name : $_[0])
967}
968
969sub path($) {
970 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
971
972 (playerdir $login) . "/$login.pl"
973}
974
975sub find_active($) {
976 $cf::PLAYER{$_[0]}
977 and $cf::PLAYER{$_[0]}->active
978 and $cf::PLAYER{$_[0]}
979}
980
981sub exists($) {
982 my ($login) = @_;
983
984 $cf::PLAYER{$login}
985 or cf::sync_job { !aio_stat path $login }
986}
987
988sub find($) {
989 return $cf::PLAYER{$_[0]} || do {
990 my $login = $_[0];
991
992 my $guard = cf::lock_acquire "user_find:$login";
993
994 $cf::PLAYER{$_[0]} || do {
995 my $pl = load_pl path $login
996 or return;
997 $cf::PLAYER{$login} = $pl
998 }
999 }
1000}
1001
1002sub save($) {
1003 my ($pl) = @_;
1004
1005 return if $pl->{deny_save};
1006
1007 my $path = path $pl;
1008 my $guard = cf::lock_acquire "user_save:$path";
1009
1010 return if $pl->{deny_save};
1011
1012 aio_mkdir playerdir $pl, 0770;
1013 $pl->{last_save} = $cf::RUNTIME;
1014
1015 $pl->save_pl ($path);
1016 Coro::cede;
1017}
1018
1019sub new($) {
1020 my ($login) = @_;
1021
1022 my $self = create;
1023
1024 $self->ob->name ($login);
1025 $self->{deny_save} = 1;
1026
1027 $cf::PLAYER{$login} = $self;
1028
1029 $self
1030}
1031
1032=item $pl->quit_character
1033
1034Nukes the player without looking back. If logged in, the connection will
1035be destroyed. May block for a long time.
1036
1037=cut
1038
1039sub quit_character {
1040 my ($pl) = @_;
1041
1042 $pl->{deny_save} = 1;
1043 $pl->password ("*"); # this should lock out the player until we nuked the dir
1044
1045 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1046 $pl->deactivate;
1047 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1048 $pl->ns->destroy if $pl->ns;
1049
1050 my $path = playerdir $pl;
1051 my $temp = "$path~$cf::RUNTIME~deleting~";
1052 aio_rename $path, $temp;
1053 delete $cf::PLAYER{$pl->ob->name};
1054 $pl->destroy;
1055 IO::AIO::aio_rmtree $temp;
1056}
1057
1058=item cf::player::list_logins
1059
1060Returns am arrayref of all valid playernames in the system, can take a
1061while and may block, so not sync_job-capable, ever.
1062
1063=cut
1064
1065sub list_logins {
1066 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1067 or return [];
1068
1069 my @logins;
1070
1071 for my $login (@$dirs) {
1072 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1073 aio_read $fh, 0, 512, my $buf, 0 or next;
1074 $buf !~ /^password -------------$/m or next; # official not-valid tag
1075
1076 utf8::decode $login;
1077 push @logins, $login;
1078 }
1079
1080 \@logins
1081}
1082
1083=item $player->maps
1084
1085Returns an arrayref of map paths that are private for this
1086player. May block.
1087
1088=cut
1089
1090sub maps($) {
1091 my ($pl) = @_;
1092
1093 $pl = ref $pl ? $pl->ob->name : $pl;
1094
1095 my $files = aio_readdir playerdir $pl
1096 or return;
1097
1098 my @paths;
1099
1100 for (@$files) {
1101 utf8::decode $_;
1102 next if /\.(?:pl|pst)$/;
1103 next unless /^$PATH_SEP/o;
1104
1105 push @paths, cf::map::normalise "~$pl/$_";
1106 }
1107
1108 \@paths
1101} 1109}
1102 1110
1103=item $player->ext_reply ($msgid, $msgtype, %msg) 1111=item $player->ext_reply ($msgid, $msgtype, %msg)
1104 1112
1105Sends an ext reply to the player. 1113Sends an ext reply to the player.
1106 1114
1107=cut 1115=cut
1108 1116
1109sub cf::player::ext_reply($$$%) { 1117sub ext_reply($$$%) {
1110 my ($self, $id, %msg) = @_; 1118 my ($self, $id, %msg) = @_;
1111 1119
1112 $msg{msgid} = $id; 1120 $msg{msgid} = $id;
1113 1121
1114 $self->send ("ext " . to_json \%msg); 1122 $self->send ("ext " . cf::to_json \%msg);
1115} 1123}
1124
1125package cf;
1116 1126
1117=back 1127=back
1118 1128
1119 1129
1120=head3 cf::map 1130=head3 cf::map
1126package cf::map; 1136package cf::map;
1127 1137
1128use Fcntl; 1138use Fcntl;
1129use Coro::AIO; 1139use Coro::AIO;
1130 1140
1141use overload
1142 '""' => \&as_string,
1143 fallback => 1;
1144
1131our $MAX_RESET = 7200; 1145our $MAX_RESET = 3600;
1132our $DEFAULT_RESET = 3600; 1146our $DEFAULT_RESET = 3000;
1133 1147
1134sub generate_random_map { 1148sub generate_random_map {
1135 my ($path, $rmp) = @_; 1149 my ($self, $rmp) = @_;
1136
1137 # mit "rum" bekleckern, nicht 1150 # mit "rum" bekleckern, nicht
1138 cf::map::_create_random_map 1151 $self->_create_random_map (
1139 $path,
1140 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1152 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1153 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1154 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143 $rmp->{exit_on_final_map}, 1155 $rmp->{exit_on_final_map},
1144 $rmp->{xsize}, $rmp->{ysize}, 1156 $rmp->{xsize}, $rmp->{ysize},
1145 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1157 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1158 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1159 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1160 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1161 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150 (cf::region::find $rmp->{region}) 1162 (cf::region::find $rmp->{region}), $rmp->{custom}
1163 )
1164}
1165
1166=item cf::map->register ($regex, $prio)
1167
1168Register a handler for the map path matching the given regex at the
1169givne priority (higher is better, built-in handlers have priority 0, the
1170default).
1171
1172=cut
1173
1174sub register {
1175 my (undef, $regex, $prio) = @_;
1176 my $pkg = caller;
1177
1178 no strict;
1179 push @{"$pkg\::ISA"}, __PACKAGE__;
1180
1181 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1182}
1183
1184# also paths starting with '/'
1185$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1186
1187sub thawer_merge {
1188 my ($self, $merge) = @_;
1189
1190 # we have to keep some variables in memory intact
1191 local $self->{path};
1192 local $self->{load_path};
1193 local $self->{deny_save};
1194 local $self->{deny_reset};
1195
1196 $self->SUPER::thawer_merge ($merge);
1197}
1198
1199sub normalise {
1200 my ($path, $base) = @_;
1201
1202 $path = "$path"; # make sure its a string
1203
1204 $path =~ s/\.map$//;
1205
1206 # map plan:
1207 #
1208 # /! non-realised random map exit (special hack!)
1209 # {... are special paths that are not being touched
1210 # ?xxx/... are special absolute paths
1211 # ?random/... random maps
1212 # /... normal maps
1213 # ~user/... per-player map of a specific user
1214
1215 $path =~ s/$PATH_SEP/\//go;
1216
1217 # treat it as relative path if it starts with
1218 # something that looks reasonable
1219 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1220 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1221
1222 $base =~ s{[^/]+/?$}{};
1223 $path = "$base/$path";
1224 }
1225
1226 for ($path) {
1227 redo if s{//}{/};
1228 redo if s{/\.?/}{/};
1229 redo if s{/[^/]+/\.\./}{/};
1230 }
1231
1232 $path
1233}
1234
1235sub new_from_path {
1236 my (undef, $path, $base) = @_;
1237
1238 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1239
1240 $path = normalise $path, $base;
1241
1242 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1243 if ($path =~ $EXT_MAP{$pkg}[1]) {
1244 my $self = bless cf::map::new, $pkg;
1245 $self->{path} = $path; $self->path ($path);
1246 $self->init; # pass $1 etc.
1247 return $self;
1248 }
1249 }
1250
1251 Carp::carp "unable to resolve path '$path' (base '$base').";
1252 ()
1253}
1254
1255sub init {
1256 my ($self) = @_;
1257
1258 $self
1259}
1260
1261sub as_string {
1262 my ($self) = @_;
1263
1264 "$self->{path}"
1265}
1266
1267# the displayed name, this is a one way mapping
1268sub visible_name {
1269 &as_string
1270}
1271
1272# the original (read-only) location
1273sub load_path {
1274 my ($self) = @_;
1275
1276 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1277}
1278
1279# the temporary/swap location
1280sub save_path {
1281 my ($self) = @_;
1282
1283 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1284 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1285}
1286
1287# the unique path, undef == no special unique path
1288sub uniq_path {
1289 my ($self) = @_;
1290
1291 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1292 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1151} 1293}
1152 1294
1153# and all this just because we cannot iterate over 1295# and all this just because we cannot iterate over
1154# all maps in C++... 1296# all maps in C++...
1155sub change_all_map_light { 1297sub change_all_map_light {
1157 1299
1158 $_->change_map_light ($change) 1300 $_->change_map_light ($change)
1159 for grep $_->outdoor, values %cf::MAP; 1301 for grep $_->outdoor, values %cf::MAP;
1160} 1302}
1161 1303
1304sub unlink_save {
1305 my ($self) = @_;
1306
1307 utf8::encode (my $save = $self->save_path);
1308 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1309 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311 #d#TODO remove .map and also nuke
1312 $save =~ s/\.map// or return;#d#
1313 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1315}
1316
1162sub try_load_header($) { 1317sub load_header_from($) {
1163 my ($path) = @_; 1318 my ($self, $path) = @_;
1164 1319
1165 utf8::encode $path; 1320 utf8::encode $path;
1166 aio_open $path, O_RDONLY, 0 1321 #aio_open $path, O_RDONLY, 0
1322 # or return;
1323
1324 $self->_load_header ($path)
1167 or return; 1325 or return;
1168 1326
1169 my $map = cf::map::new 1327 $self->{load_path} = $path;
1328
1329 1
1330}
1331
1332sub load_header_orig {
1333 my ($self) = @_;
1334
1335 $self->load_header_from ($self->load_path)
1336}
1337
1338sub load_header_temp {
1339 my ($self) = @_;
1340
1341 $self->load_header_from ($self->save_path)
1342}
1343
1344sub prepare_temp {
1345 my ($self) = @_;
1346
1347 $self->last_access ((delete $self->{last_access})
1348 || $cf::RUNTIME); #d#
1349 # safety
1350 $self->{instantiate_time} = $cf::RUNTIME
1351 if $self->{instantiate_time} > $cf::RUNTIME;
1352}
1353
1354sub prepare_orig {
1355 my ($self) = @_;
1356
1357 $self->{load_original} = 1;
1358 $self->{instantiate_time} = $cf::RUNTIME;
1359 $self->last_access ($cf::RUNTIME);
1360 $self->instantiate;
1361}
1362
1363sub load_header {
1364 my ($self) = @_;
1365
1366 if ($self->load_header_temp) {
1367 $self->prepare_temp;
1368 } else {
1369 $self->load_header_orig
1170 or return; 1370 or return;
1371 $self->prepare_orig;
1372 }
1171 1373
1172 $map->load_header ($path) 1374 1
1173 or return;
1174
1175 $map->{load_path} = $path;
1176
1177 $map
1178} 1375}
1179 1376
1180sub find_map; 1377sub find;
1181sub find_map { 1378sub find {
1182 my ($path, $origin) = @_; 1379 my ($path, $origin) = @_;
1183 1380
1184 #warn "find_map<$path,$origin>\n";#d#
1185
1186 $path = new cf::path $path, $origin && $origin->path; 1381 $path = normalise $path, $origin && $origin->path;
1187 my $key = $path->as_string;
1188 1382
1189 cf::lock_wait "map_find:$key"; 1383 cf::lock_wait "map_find:$path";
1190 1384
1191 $cf::MAP{$key} || do { 1385 $cf::MAP{$path} || do {
1192 my $guard = cf::lock_acquire "map_find:$key"; 1386 my $guard = cf::lock_acquire "map_find:$path";
1193 1387 my $map = new_from_path cf::map $path
1194 # do it the slow way
1195 my $map = try_load_header $path->save_path;
1196
1197 if ($map) {
1198 # safety
1199 $map->{instantiate_time} = $cf::RUNTIME
1200 if $map->{instantiate_time} > $cf::RUNTIME;
1201 } else {
1202 if (my $rmp = $path->random_map_params) {
1203 $map = generate_random_map $key, $rmp;
1204 } else {
1205 $map = try_load_header $path->load_path;
1206 }
1207
1208 $map or return; 1388 or return;
1209 1389
1210 $map->{load_original} = 1;
1211 $map->{instantiate_time} = $cf::RUNTIME;
1212 $map->instantiate;
1213
1214 # per-player maps become, after loading, normal maps
1215 $map->per_player (0) if $path->{user_rel};
1216 }
1217
1218 $map->path ($key);
1219 $map->{path} = $path;
1220 $map->{last_save} = $cf::RUNTIME; 1390 $map->{last_save} = $cf::RUNTIME;
1221 $map->last_access ($cf::RUNTIME);
1222 1391
1223 if ($map->should_reset) { 1392 $map->load_header
1393 or return;
1394
1395 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1396 # doing this can freeze the server in a sync job, obviously
1397 #$cf::WAIT_FOR_TICK->wait;
1224 $map->reset; 1398 $map->reset;
1225 undef $guard; 1399 undef $guard;
1226 $map = find_map $path 1400 return find $path;
1227 or return;
1228 } 1401 }
1229 1402
1230 $cf::MAP{$key} = $map 1403 $cf::MAP{$path} = $map
1231 } 1404 }
1232} 1405}
1406
1407sub pre_load { }
1408sub post_load { }
1233 1409
1234sub load { 1410sub load {
1235 my ($self) = @_; 1411 my ($self) = @_;
1236 1412
1413 local $self->{deny_reset} = 1; # loading can take a long time
1414
1237 my $path = $self->{path}; 1415 my $path = $self->{path};
1238 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1416 my $guard = cf::lock_acquire "map_load:$path";
1239 1417
1240 return if $self->in_memory != cf::MAP_SWAPPED; 1418 return if $self->in_memory != cf::MAP_SWAPPED;
1241 1419
1242 $self->in_memory (cf::MAP_LOADING); 1420 $self->in_memory (cf::MAP_LOADING);
1243 1421
1244 $self->alloc; 1422 $self->alloc;
1423
1424 $self->pre_load;
1425
1245 $self->load_objects ($self->{load_path}, 1) 1426 $self->_load_objects ($self->{load_path}, 1)
1246 or return; 1427 or return;
1247 1428
1248 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1429 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249 if delete $self->{load_original}; 1430 if delete $self->{load_original};
1250 1431
1251 if (my $uniq = $path->uniq_path) { 1432 if (my $uniq = $self->uniq_path) {
1252 utf8::encode $uniq; 1433 utf8::encode $uniq;
1253 if (aio_open $uniq, O_RDONLY, 0) { 1434 if (aio_open $uniq, O_RDONLY, 0) {
1254 $self->clear_unique_items; 1435 $self->clear_unique_items;
1255 $self->load_objects ($uniq, 0); 1436 $self->_load_objects ($uniq, 0);
1256 } 1437 }
1257 } 1438 }
1439
1440 Coro::cede;
1258 1441
1259 # now do the right thing for maps 1442 # now do the right thing for maps
1260 $self->link_multipart_objects; 1443 $self->link_multipart_objects;
1261 1444
1262 if ($self->{path}->is_style_map) { 1445 unless ($self->{deny_activate}) {
1263 $self->{deny_save} = 1; 1446 $self->decay_objects;
1264 $self->{deny_reset} = 1;
1265 } else {
1266 $self->fix_auto_apply; 1447 $self->fix_auto_apply;
1267 $self->decay_objects;
1268 $self->update_buttons; 1448 $self->update_buttons;
1449 Coro::cede;
1269 $self->set_darkness_map; 1450 $self->set_darkness_map;
1270 $self->difficulty ($self->estimate_difficulty) 1451 $self->difficulty ($self->estimate_difficulty)
1271 unless $self->difficulty; 1452 unless $self->difficulty;
1453 Coro::cede;
1272 $self->activate; 1454 $self->activate;
1273 } 1455 }
1274 1456
1457 $self->post_load;
1458
1275 $self->in_memory (cf::MAP_IN_MEMORY); 1459 $self->in_memory (cf::MAP_IN_MEMORY);
1276} 1460}
1277 1461
1278sub load_map_sync { 1462sub customise_for {
1463 my ($self, $ob) = @_;
1464
1465 return find "~" . $ob->name . "/" . $self->{path}
1466 if $self->per_player;
1467
1468 $self
1469}
1470
1471# find and load all maps in the 3x3 area around a map
1472sub load_diag {
1473 my ($map) = @_;
1474
1475 my @diag; # diagonal neighbours
1476
1477 for (0 .. 3) {
1478 my $neigh = $map->tile_path ($_)
1479 or next;
1480 $neigh = find $neigh, $map
1481 or next;
1482 $neigh->load;
1483
1484 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1485 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1486 }
1487
1488 for (@diag) {
1489 my $neigh = find @$_
1490 or next;
1491 $neigh->load;
1492 }
1493}
1494
1495sub find_sync {
1279 my ($path, $origin) = @_; 1496 my ($path, $origin) = @_;
1280 1497
1281 #warn "load_map_sync<$path, $origin>\n";#d# 1498 cf::sync_job { find $path, $origin }
1499}
1282 1500
1283 cf::sync_job { 1501sub do_load_sync {
1284 my $map = cf::map::find_map $path, $origin 1502 my ($map) = @_;
1285 or return; 1503
1504 cf::sync_job { $map->load };
1505}
1506
1507our %MAP_PREFETCH;
1508our $MAP_PREFETCHER = undef;
1509
1510sub find_async {
1511 my ($path, $origin) = @_;
1512
1513 $path = normalise $path, $origin && $origin->{path};
1514
1515 if (my $map = $cf::MAP{$path}) {
1516 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1517 }
1518
1519 undef $MAP_PREFETCH{$path};
1520 $MAP_PREFETCHER ||= cf::async {
1521 while (%MAP_PREFETCH) {
1522 for my $path (keys %MAP_PREFETCH) {
1523 my $map = find $path
1524 or next;
1286 $map->load; 1525 $map->load;
1287 $map 1526
1527 delete $MAP_PREFETCH{$path};
1528 }
1529 }
1530 undef $MAP_PREFETCHER;
1288 } 1531 };
1532 $MAP_PREFETCHER->prio (6);
1533
1534 ()
1289} 1535}
1290 1536
1291sub save { 1537sub save {
1292 my ($self) = @_; 1538 my ($self) = @_;
1293 1539
1540 my $lock = cf::lock_acquire "map_data:" . $self->path;
1541
1294 $self->{last_save} = $cf::RUNTIME; 1542 $self->{last_save} = $cf::RUNTIME;
1295 1543
1296 return unless $self->dirty; 1544 return unless $self->dirty;
1297 1545
1298 my $save = $self->{path}->save_path; utf8::encode $save; 1546 my $save = $self->save_path; utf8::encode $save;
1299 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1547 my $uniq = $self->uniq_path; utf8::encode $uniq;
1300 1548
1301 $self->{load_path} = $save; 1549 $self->{load_path} = $save;
1302 1550
1303 return if $self->{deny_save}; 1551 return if $self->{deny_save};
1304 1552
1553 local $self->{last_access} = $self->last_access;#d#
1554
1555 cf::async {
1556 $_->contr->save for $self->players;
1557 };
1558
1305 if ($uniq) { 1559 if ($uniq) {
1306 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1560 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307 $self->save_objects ($uniq, cf::IO_UNIQUES); 1561 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1308 } else { 1562 } else {
1309 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1563 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310 } 1564 }
1311} 1565}
1312 1566
1313sub swap_out { 1567sub swap_out {
1314 my ($self) = @_; 1568 my ($self) = @_;
1569
1570 # save first because save cedes
1571 $self->save;
1572
1573 my $lock = cf::lock_acquire "map_data:" . $self->path;
1315 1574
1316 return if $self->players; 1575 return if $self->players;
1317 return if $self->in_memory != cf::MAP_IN_MEMORY; 1576 return if $self->in_memory != cf::MAP_IN_MEMORY;
1318 return if $self->{deny_save}; 1577 return if $self->{deny_save};
1319 1578
1320 $self->save;
1321 $self->clear; 1579 $self->clear;
1322 $self->in_memory (cf::MAP_SWAPPED); 1580 $self->in_memory (cf::MAP_SWAPPED);
1323} 1581}
1324 1582
1325sub reset_at { 1583sub reset_at {
1326 my ($self) = @_; 1584 my ($self) = @_;
1327 1585
1328 # TODO: safety, remove and allow resettable per-player maps 1586 # TODO: safety, remove and allow resettable per-player maps
1329 return 1e99 if $self->{path}{user_rel}; 1587 return 1e99 if $self->isa ("ext::map_per_player");#d#
1330 return 1e99 if $self->{deny_reset}; 1588 return 1e99 if $self->{deny_reset};
1331 1589
1332 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1590 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1591 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334 1592
1339 my ($self) = @_; 1597 my ($self) = @_;
1340 1598
1341 $self->reset_at <= $cf::RUNTIME 1599 $self->reset_at <= $cf::RUNTIME
1342} 1600}
1343 1601
1344sub unlink_save {
1345 my ($self) = @_;
1346
1347 utf8::encode (my $save = $self->{path}->save_path);
1348 aioreq_pri 3; IO::AIO::aio_unlink $save;
1349 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350}
1351
1352sub rename {
1353 my ($self, $new_path) = @_;
1354
1355 $self->unlink_save;
1356
1357 delete $cf::MAP{$self->path};
1358 $self->{path} = new cf::path $new_path;
1359 $self->path ($self->{path}->as_string);
1360 $cf::MAP{$self->path} = $self;
1361
1362 $self->save;
1363}
1364
1365sub reset { 1602sub reset {
1366 my ($self) = @_; 1603 my ($self) = @_;
1367 1604
1605 my $lock = cf::lock_acquire "map_data:$self->{path}";
1606
1368 return if $self->players; 1607 return if $self->players;
1369 return if $self->{path}{user_rel};#d# 1608 return if $self->isa ("ext::map_per_player");#d#
1370 1609
1371 warn "resetting map ", $self->path;#d# 1610 warn "resetting map ", $self->path;#d#
1372 1611
1612 $self->in_memory (cf::MAP_SWAPPED);
1613
1614 # need to save uniques path
1615 unless ($self->{deny_save}) {
1616 my $uniq = $self->uniq_path; utf8::encode $uniq;
1617
1618 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1619 if $uniq;
1620 }
1621
1373 delete $cf::MAP{$self->path}; 1622 delete $cf::MAP{$self->path};
1623
1624 $self->clear;
1374 1625
1375 $_->clear_links_to ($self) for values %cf::MAP; 1626 $_->clear_links_to ($self) for values %cf::MAP;
1376 1627
1377 $self->unlink_save; 1628 $self->unlink_save;
1378 $self->destroy; 1629 $self->destroy;
1381my $nuke_counter = "aaaa"; 1632my $nuke_counter = "aaaa";
1382 1633
1383sub nuke { 1634sub nuke {
1384 my ($self) = @_; 1635 my ($self) = @_;
1385 1636
1637 delete $cf::MAP{$self->path};
1638
1639 $self->unlink_save;
1640
1641 bless $self, "cf::map";
1642 delete $self->{deny_reset};
1386 $self->{deny_save} = 1; 1643 $self->{deny_save} = 1;
1387 $self->reset_timeout (1); 1644 $self->reset_timeout (1);
1388 $self->rename ("{nuke}/" . ($nuke_counter++)); 1645 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646
1647 $cf::MAP{$self->path} = $self;
1648
1389 $self->reset; # polite request, might not happen 1649 $self->reset; # polite request, might not happen
1390} 1650}
1391 1651
1392sub customise_for { 1652=item cf::map::unique_maps
1393 my ($map, $ob) = @_;
1394 1653
1395 if ($map->per_player) { 1654Returns an arrayref of paths of all shared maps that have
1396 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1655instantiated unique items. May block.
1397 }
1398 1656
1399 $map 1657=cut
1400}
1401 1658
1402sub emergency_save { 1659sub unique_maps() {
1403 local $cf::FREEZE = 1; 1660 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1661 or return;
1404 1662
1405 warn "enter emergency map save\n"; 1663 my @paths;
1406 1664
1407 cf::sync_job { 1665 for (@$files) {
1408 warn "begin emergency map save\n"; 1666 utf8::decode $_;
1409 $_->save for values %cf::MAP; 1667 next if /\.pst$/;
1668 next unless /^$PATH_SEP/o;
1669
1670 push @paths, cf::map::normalise $_;
1410 }; 1671 }
1411 1672
1412 warn "end emergency map save\n"; 1673 \@paths
1413} 1674}
1414 1675
1415package cf; 1676package cf;
1416 1677
1417=back 1678=back
1418 1679
1680=head3 cf::object
1681
1682=cut
1683
1684package cf::object;
1685
1686=over 4
1687
1688=item $ob->inv_recursive
1689
1690Returns the inventory of the object _and_ their inventories, recursively.
1691
1692=cut
1693
1694sub inv_recursive_;
1695sub inv_recursive_ {
1696 map { $_, inv_recursive_ $_->inv } @_
1697}
1698
1699sub inv_recursive {
1700 inv_recursive_ inv $_[0]
1701}
1702
1703package cf;
1704
1705=back
1419 1706
1420=head3 cf::object::player 1707=head3 cf::object::player
1421 1708
1422=over 4 1709=over 4
1423 1710
1463 1750
1464=item $player_object->enter_link 1751=item $player_object->enter_link
1465 1752
1466Freezes the player and moves him/her to a special map (C<{link}>). 1753Freezes the player and moves him/her to a special map (C<{link}>).
1467 1754
1468The player should be reaosnably safe there for short amounts of time. You 1755The player should be reasonably safe there for short amounts of time. You
1469I<MUST> call C<leave_link> as soon as possible, though. 1756I<MUST> call C<leave_link> as soon as possible, though.
1470 1757
1758Will never block.
1759
1471=item $player_object->leave_link ($map, $x, $y) 1760=item $player_object->leave_link ($map, $x, $y)
1472 1761
1473Moves the player out of the specila link map onto the given map. If the 1762Moves the player out of the special C<{link}> map onto the specified
1474map is not valid (or omitted), the player will be moved back to the 1763map. If the map is not valid (or omitted), the player will be moved back
1475location he/she was before the call to C<enter_link>, or, if that fails, 1764to the location he/she was before the call to C<enter_link>, or, if that
1476to the emergency map position. 1765fails, to the emergency map position.
1477 1766
1478Might block. 1767Might block.
1479 1768
1480=cut 1769=cut
1770
1771sub link_map {
1772 unless ($LINK_MAP) {
1773 $LINK_MAP = cf::map::find "{link}"
1774 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1775 $LINK_MAP->load;
1776 }
1777
1778 $LINK_MAP
1779}
1481 1780
1482sub cf::object::player::enter_link { 1781sub cf::object::player::enter_link {
1483 my ($self) = @_; 1782 my ($self) = @_;
1484 1783
1485 $self->deactivate_recursive; 1784 $self->deactivate_recursive;
1486 1785
1487 return if $self->map == $LINK_MAP; 1786 return if UNIVERSAL::isa $self->map, "ext::map_link";
1488 1787
1489 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1788 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490 if $self->map; 1789 if $self->map;
1491 1790
1492 $self->enter_map ($LINK_MAP, 20, 20); 1791 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1493} 1792}
1494 1793
1495sub cf::object::player::leave_link { 1794sub cf::object::player::leave_link {
1496 my ($self, $map, $x, $y) = @_; 1795 my ($self, $map, $x, $y) = @_;
1497 1796
1498 my $link_pos = delete $self->{_link_pos}; 1797 my $link_pos = delete $self->{_link_pos};
1499 1798
1500 unless ($map) { 1799 unless ($map) {
1501 # restore original map position 1800 # restore original map position
1502 ($map, $x, $y) = @{ $link_pos || [] }; 1801 ($map, $x, $y) = @{ $link_pos || [] };
1503 $map = cf::map::find_map $map; 1802 $map = cf::map::find $map;
1504 1803
1505 unless ($map) { 1804 unless ($map) {
1506 ($map, $x, $y) = @$EMERGENCY_POSITION; 1805 ($map, $x, $y) = @$EMERGENCY_POSITION;
1507 $map = cf::map::find_map $map 1806 $map = cf::map::find $map
1508 or die "FATAL: cannot load emergency map\n"; 1807 or die "FATAL: cannot load emergency map\n";
1509 } 1808 }
1510 } 1809 }
1511 1810
1512 ($x, $y) = (-1, -1) 1811 ($x, $y) = (-1, -1)
1515 # use -1 or undef as default coordinates, not 0, 0 1814 # use -1 or undef as default coordinates, not 0, 0
1516 ($x, $y) = ($map->enter_x, $map->enter_y) 1815 ($x, $y) = ($map->enter_x, $map->enter_y)
1517 if $x <=0 && $y <= 0; 1816 if $x <=0 && $y <= 0;
1518 1817
1519 $map->load; 1818 $map->load;
1819 $map->load_diag;
1520 1820
1821 return unless $self->contr->active;
1521 $self->activate_recursive; 1822 $self->activate_recursive;
1823
1824 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1522 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1523} 1826}
1524 1827
1525cf::player->attach ( 1828cf::player->attach (
1526 on_logout => sub { 1829 on_logout => sub {
1538 1841
1539 # try to abort aborted map switching on player login :) 1842 # try to abort aborted map switching on player login :)
1540 # should happen only on crashes 1843 # should happen only on crashes
1541 if ($pl->ob->{_link_pos}) { 1844 if ($pl->ob->{_link_pos}) {
1542 $pl->ob->enter_link; 1845 $pl->ob->enter_link;
1543 Coro::async { 1846 (async {
1847 $pl->ob->reply (undef,
1848 "There was an internal problem at your last logout, "
1849 . "the server will try to bring you to your intended destination in a second.",
1850 cf::NDI_RED);
1544 # we need this sleep as the login has a concurrent enter_exit running 1851 # we need this sleep as the login has a concurrent enter_exit running
1545 # and this sleep increases chances of the player not ending up in scorn 1852 # and this sleep increases chances of the player not ending up in scorn
1546 Coro::Timer::sleep 1; 1853 Coro::Timer::sleep 1;
1547 $pl->ob->leave_link; 1854 $pl->ob->leave_link;
1548 }; 1855 })->prio (2);
1549 } 1856 }
1550 }, 1857 },
1551); 1858);
1552 1859
1553=item $player_object->goto_map ($path, $x, $y) 1860=item $player_object->goto ($path, $x, $y)
1554 1861
1555=cut 1862=cut
1556 1863
1557sub cf::object::player::goto_map { 1864sub cf::object::player::goto {
1558 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1559 1866
1560 $self->enter_link; 1867 $self->enter_link;
1561 1868
1562 (Coro::async { 1869 (async {
1563 $path = new cf::path $path; 1870 my $map = eval {
1564
1565 my $map = cf::map::find_map $path->as_string; 1871 my $map = cf::map::find $path;
1566 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1567 1873 $map
1568# warn "entering ", $map->path, " at ($x, $y)\n" 1874 } or
1569# if $map;
1570
1571 $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);
1572 1876
1573 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1574 })->prio (1); 1878 })->prio (1);
1575} 1879}
1576 1880
1580 1884
1581sub parse_random_map_params { 1885sub parse_random_map_params {
1582 my ($spec) = @_; 1886 my ($spec) = @_;
1583 1887
1584 my $rmp = { # defaults 1888 my $rmp = { # defaults
1585 xsize => 10, 1889 xsize => (cf::rndm 15, 40),
1586 ysize => 10, 1890 ysize => (cf::rndm 15, 40),
1891 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1892 #layout => string,
1587 }; 1893 };
1588 1894
1589 for (split /\n/, $spec) { 1895 for (split /\n/, $spec) {
1590 my ($k, $v) = split /\s+/, $_, 2; 1896 my ($k, $v) = split /\s+/, $_, 2;
1591 1897
1595 $rmp 1901 $rmp
1596} 1902}
1597 1903
1598sub prepare_random_map { 1904sub prepare_random_map {
1599 my ($exit) = @_; 1905 my ($exit) = @_;
1906
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1600 1908
1601 # all this does is basically replace the /! path by 1909 # all this does is basically replace the /! path by
1602 # a new random map path (?random/...) with a seed 1910 # a new random map path (?random/...) with a seed
1603 # that depends on the exit object 1911 # that depends on the exit object
1604 1912
1605 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1606 1914
1607 if ($exit->map) { 1915 if ($exit->map) {
1608 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1609 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1610 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1611 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1612 } 1920 }
1613 1921
1614 $rmp->{random_seed} ||= $exit->random_seed; 1922 $rmp->{random_seed} ||= $exit->random_seed;
1615 1923
1616 my $data = cf::to_json $rmp; 1924 my $data = cf::to_json $rmp;
1617 my $md5 = Digest::MD5::md5_hex $data; 1925 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1618 1927
1619 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) {
1620 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;
1621 1932
1622 $exit->slaying ("?random/$md5"); 1933 $exit->slaying ("?random/$md5");
1623 $exit->msg (undef); 1934 $exit->msg (undef);
1624 } 1935 }
1625} 1936}
1627sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1628 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1629 1940
1630 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1631 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
1632 $self->enter_link; 1952 $self->enter_link;
1633 1953
1634 (Coro::async { 1954 (async {
1955 $self->deactivate_recursive; # just to be sure
1635 unless (eval { 1956 unless (eval {
1636 1957 $self->goto ($slaying, $hp, $sp);
1637 prepare_random_map $exit
1638 if $exit->slaying eq "/!";
1639
1640 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1641 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1642 1958
1643 1; 1959 1;
1644 }) { 1960 }) {
1645 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1646 . "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. "
1647 . "Please report this to the dungeon master", 1963 . "Please report this to the dungeon master!",
1648 cf::NDI_UNIQUE | cf::NDI_RED); 1964 cf::NDI_UNIQUE | cf::NDI_RED);
1649 1965
1650 warn "ERROR in enter_exit: $@"; 1966 warn "ERROR in enter_exit: $@";
1651 $self->leave_link; 1967 $self->leave_link;
1652 } 1968 }
1703 on_reply => sub { 2019 on_reply => sub {
1704 my ($ns, $msg) = @_; 2020 my ($ns, $msg) = @_;
1705 2021
1706 # this weird shuffling is so that direct followup queries 2022 # this weird shuffling is so that direct followup queries
1707 # get handled first 2023 # get handled first
1708 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
1709 2026
1710 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711 2029
1712 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1713 2031
1714 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1715 if (@$queue) { 2033 if (@$queue) {
1719 } 2037 }
1720 } 2038 }
1721 }, 2039 },
1722); 2040);
1723 2041
1724=item $client->coro (\&cb) 2042=item $client->async (\&cb)
1725 2043
1726Create a new coroutine, running the specified callback. The coroutine will 2044Create a new coroutine, running the specified callback. The coroutine will
1727be automatically cancelled when the client gets destroyed (e.g. on logout, 2045be automatically cancelled when the client gets destroyed (e.g. on logout,
1728or loss of connection). 2046or loss of connection).
1729 2047
1730=cut 2048=cut
1731 2049
1732sub cf::client::coro { 2050sub cf::client::async {
1733 my ($self, $cb) = @_; 2051 my ($self, $cb) = @_;
1734 2052
1735 my $coro; $coro = async { 2053 my $coro = &Coro::async ($cb);
1736 eval {
1737 $cb->();
1738 };
1739 warn $@ if $@;
1740 };
1741 2054
1742 $coro->on_destroy (sub { 2055 $coro->on_destroy (sub {
1743 delete $self->{_coro}{$coro+0}; 2056 delete $self->{_coro}{$coro+0};
1744 }); 2057 });
1745 2058
1881The 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
1882using it, it should be unique. 2195using it, it should be unique.
1883 2196
1884=over 4 2197=over 4
1885 2198
1886=item $hashref = cf::db_get $family
1887
1888Return a hashref for use by the extension C<$family>, which can be
1889modified. After modifications, you have to call C<cf::db_dirty> or
1890C<cf::db_sync>.
1891
1892=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
1893 2200
1894Returns a single value from the database 2201Returns a single value from the database.
1895
1896=item cf::db_put $family => $hashref
1897
1898Stores the given family hashref into the database. Updates are delayed, if
1899you want the data to be synced to disk immediately, use C<cf::db_sync>.
1900 2202
1901=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
1902 2204
1903Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
1904want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906=item cf::db_dirty
1907
1908Marks the database as dirty, to be updated at a later time.
1909
1910=item cf::db_sync
1911
1912Immediately write the database to disk I<if it is dirty>.
1913 2206
1914=cut 2207=cut
1915 2208
1916our $DB; 2209our $DB;
1917 2210
1918{ 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
1919 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;
1920 2230
1921 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
1922 $DB = stat $path ? Storable::retrieve $path : { }; 2232 cf::db_put (guildrules => data => $pst->{guildrules});
1923 } 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
1924 2235
1925 my $pid; 2236 unlink $path;
1926
1927 sub db_save() {
1928 waitpid $pid, 0 if $pid;
1929 if (0 == ($pid = fork)) {
1930 $DB->{_meta}{version} = 1;
1931 Storable::nstore $DB, "$path~";
1932 rename "$path~", $path;
1933 cf::_exit 0 if defined $pid;
1934 } 2237 };
1935 }
1936
1937 my $dirty;
1938
1939 sub db_sync() {
1940 db_save if $dirty;
1941 undef $dirty;
1942 }
1943
1944 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945 db_sync;
1946 });
1947
1948 sub db_dirty() {
1949 $dirty = 1;
1950 $idle->start;
1951 }
1952
1953 sub db_get($;$) {
1954 @_ >= 2
1955 ? $DB->{$_[0]}{$_[1]}
1956 : ($DB->{$_[0]} ||= { })
1957 }
1958
1959 sub db_put($$;$) {
1960 if (@_ >= 3) {
1961 $DB->{$_[0]}{$_[1]} = $_[2];
1962 } else {
1963 $DB->{$_[0]} = $_[1];
1964 }
1965 db_dirty;
1966 }
1967
1968 cf::global->attach (
1969 prio => 10000,
1970 on_cleanup => sub {
1971 db_sync;
1972 }, 2238 }
1973 ); 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 { };
1974} 2256}
1975 2257
1976############################################################################# 2258#############################################################################
1977# 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}
1978 2265
1979sub cfg_load { 2266sub cfg_load {
1980 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
1981 or return; 2268 or return;
1982 2269
1983 local $/; 2270 local $/;
1984 *CFG = YAML::Syck::Load <$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;
1985} 2289}
1986 2290
1987sub main { 2291sub main {
1988 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
1989 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
1990 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#
1991 (Coro::unblock_sub { 2295 (async {
1992 Event::one_event; 2296 Event::one_event;
1993 })->(); 2297 })->prio (Coro::PRIO_MAX);
1994 }; 2298 };
1995 2299
1996 cfg_load; 2300 cfg_load;
1997 db_load; 2301 db_init;
1998 load_extensions; 2302 load_extensions;
2303
2304 $TICK_WATCHER->start;
1999 Event::loop; 2305 Event::loop;
2000} 2306}
2001 2307
2002############################################################################# 2308#############################################################################
2003# initialisation 2309# initialisation and cleanup
2310
2311# install some emergency cleanup handlers
2312BEGIN {
2313 for my $signal (qw(INT HUP TERM)) {
2314 Event->signal (
2315 reentrant => 0,
2316 data => WF_AUTOCANCEL,
2317 signal => $signal,
2318 prio => 0,
2319 cb => sub {
2320 cf::cleanup "SIG$signal";
2321 },
2322 );
2323 }
2324}
2325
2326sub emergency_save() {
2327 my $freeze_guard = cf::freeze_mainloop;
2328
2329 warn "enter emergency perl save\n";
2330
2331 cf::sync_job {
2332 # use a peculiar iteration method to avoid tripping on perl
2333 # refcount bugs in for. also avoids problems with players
2334 # and maps saved/destroyed asynchronously.
2335 warn "begin emergency player save\n";
2336 for my $login (keys %cf::PLAYER) {
2337 my $pl = $cf::PLAYER{$login} or next;
2338 $pl->valid or next;
2339 $pl->save;
2340 }
2341 warn "end emergency player save\n";
2342
2343 warn "begin emergency map save\n";
2344 for my $path (keys %cf::MAP) {
2345 my $map = $cf::MAP{$path} or next;
2346 $map->valid or next;
2347 $map->save;
2348 }
2349 warn "end emergency map save\n";
2350
2351 warn "begin emergency database checkpoint\n";
2352 BDB::db_env_txn_checkpoint $DB_ENV;
2353 warn "end emergency database checkpoint\n";
2354 };
2355
2356 warn "leave emergency perl save\n";
2357}
2358
2359sub post_cleanup {
2360 my ($make_core) = @_;
2361
2362 warn Carp::longmess "post_cleanup backtrace"
2363 if $make_core;
2364}
2004 2365
2005sub reload() { 2366sub reload() {
2006 # can/must only be called in main 2367 # can/must only be called in main
2007 if ($Coro::current != $Coro::main) { 2368 if ($Coro::current != $Coro::main) {
2008 warn "can only reload from main coroutine\n"; 2369 warn "can only reload from main coroutine";
2009 return; 2370 return;
2010 } 2371 }
2011 2372
2012 warn "reloading..."; 2373 warn "reloading...";
2013 2374
2014 local $FREEZE = 1; 2375 warn "entering sync_job";
2376
2377 cf::sync_job {
2378 cf::write_runtime; # external watchdog should not bark
2015 cf::emergency_save; 2379 cf::emergency_save;
2380 cf::write_runtime; # external watchdog should not bark
2016 2381
2017 eval { 2382 warn "syncing database to disk";
2383 BDB::db_env_txn_checkpoint $DB_ENV;
2384
2018 # if anything goes wrong in here, we should simply crash as we already saved 2385 # if anything goes wrong in here, we should simply crash as we already saved
2019 2386
2020 # cancel all watchers 2387 warn "cancelling all WF_AUTOCANCEL watchers";
2021 for (Event::all_watchers) { 2388 for (Event::all_watchers) {
2022 $_->cancel if $_->data & WF_AUTOCANCEL; 2389 $_->cancel if $_->data & WF_AUTOCANCEL;
2023 } 2390 }
2024 2391
2392 warn "flushing outstanding aio requests";
2393 for (;;) {
2394 BDB::flush;
2395 IO::AIO::flush;
2396 Coro::cede;
2397 last unless IO::AIO::nreqs || BDB::nreqs;
2398 warn "iterate...";
2399 }
2400
2025 # cancel all extension coros 2401 warn "cancelling all extension coros";
2026 $_->cancel for values %EXT_CORO; 2402 $_->cancel for values %EXT_CORO;
2027 %EXT_CORO = (); 2403 %EXT_CORO = ();
2028 2404
2029 # unload all extensions 2405 warn "removing commands";
2030 for (@exts) { 2406 %COMMAND = ();
2407
2408 warn "removing ext commands";
2409 %EXTCMD = ();
2410
2411 warn "unloading/nuking all extensions";
2412 for my $pkg (@EXTS) {
2031 warn "unloading <$_>"; 2413 warn "... unloading $pkg";
2032 unload_extension $_; 2414
2415 if (my $cb = $pkg->can ("unload")) {
2416 eval {
2417 $cb->($pkg);
2418 1
2419 } or warn "$pkg unloaded, but with errors: $@";
2033 } 2420 }
2034 2421
2422 warn "... nuking $pkg";
2423 Symbol::delete_package $pkg;
2424 }
2425
2035 # unload all modules loaded from $LIBDIR 2426 warn "unloading all perl modules loaded from $LIBDIR";
2036 while (my ($k, $v) = each %INC) { 2427 while (my ($k, $v) = each %INC) {
2037 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2428 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2038 2429
2039 warn "removing <$k>"; 2430 warn "... unloading $k";
2040 delete $INC{$k}; 2431 delete $INC{$k};
2041 2432
2042 $k =~ s/\.pm$//; 2433 $k =~ s/\.pm$//;
2043 $k =~ s/\//::/g; 2434 $k =~ s/\//::/g;
2044 2435
2047 } 2438 }
2048 2439
2049 Symbol::delete_package $k; 2440 Symbol::delete_package $k;
2050 } 2441 }
2051 2442
2052 # sync database to disk
2053 cf::db_sync;
2054 IO::AIO::flush;
2055
2056 # get rid of safe::, as good as possible 2443 warn "getting rid of safe::, as good as possible";
2057 Symbol::delete_package "safe::$_" 2444 Symbol::delete_package "safe::$_"
2058 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2445 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2059 2446
2060 # remove register_script_function callbacks
2061 # TODO
2062
2063 # unload cf.pm "a bit" 2447 warn "unloading cf.pm \"a bit\"";
2064 delete $INC{"cf.pm"}; 2448 delete $INC{"cf.pm"};
2065 2449
2066 # don't, removes xs symbols, too, 2450 # don't, removes xs symbols, too,
2067 # and global variables created in xs 2451 # and global variables created in xs
2068 #Symbol::delete_package __PACKAGE__; 2452 #Symbol::delete_package __PACKAGE__;
2069 2453
2070 # reload cf.pm 2454 warn "unload completed, starting to reload now";
2455
2071 warn "reloading cf.pm"; 2456 warn "reloading cf.pm";
2072 require cf; 2457 require cf;
2073 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2458 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2074 2459
2075 # load config and database again 2460 warn "loading config and database again";
2076 cf::cfg_load; 2461 cf::cfg_load;
2077 cf::db_load;
2078 2462
2079 # load extensions
2080 warn "load extensions"; 2463 warn "loading extensions";
2081 cf::load_extensions; 2464 cf::load_extensions;
2082 2465
2083 # reattach attachments to objects 2466 warn "reattaching attachments to objects/players";
2084 warn "reattach";
2085 _global_reattach; 2467 _global_reattach;
2086 }; 2468 warn "reattaching attachments to maps";
2469 reattach $_ for values %MAP;
2087 2470
2088 if ($@) { 2471 warn "loading reloadable resources";
2472 load_resources;
2473
2474 warn "leaving sync_job";
2475
2476 1
2477 } or do {
2089 warn $@; 2478 warn $@;
2090 warn "error while reloading, exiting."; 2479 warn "error while reloading, exiting.";
2091 exit 1; 2480 exit 1;
2092 } 2481 };
2093 2482
2094 warn "reloaded successfully"; 2483 warn "reloaded";
2095}; 2484};
2096 2485
2097############################################################################# 2486our $RELOAD_WATCHER; # used only during reload
2098
2099unless ($LINK_MAP) {
2100 $LINK_MAP = cf::map::new;
2101
2102 $LINK_MAP->width (41);
2103 $LINK_MAP->height (41);
2104 $LINK_MAP->alloc;
2105 $LINK_MAP->path ("{link}");
2106 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109 # dirty hack because... archetypes are not yet loaded
2110 Event->timer (
2111 after => 2,
2112 cb => sub {
2113 $_[0]->w->cancel;
2114
2115 # provide some exits "home"
2116 my $exit = cf::object::new "exit";
2117
2118 $exit->slaying ($EMERGENCY_POSITION->[0]);
2119 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122 $LINK_MAP->insert ($exit->clone, 19, 19);
2123 $LINK_MAP->insert ($exit->clone, 19, 20);
2124 $LINK_MAP->insert ($exit->clone, 19, 21);
2125 $LINK_MAP->insert ($exit->clone, 20, 19);
2126 $LINK_MAP->insert ($exit->clone, 20, 21);
2127 $LINK_MAP->insert ($exit->clone, 21, 19);
2128 $LINK_MAP->insert ($exit->clone, 21, 20);
2129 $LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131 $exit->destroy;
2132 });
2133
2134 $LINK_MAP->{deny_save} = 1;
2135 $LINK_MAP->{deny_reset} = 1;
2136
2137 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138}
2139
2140register "<global>", __PACKAGE__;
2141 2487
2142register_command "reload" => sub { 2488register_command "reload" => sub {
2143 my ($who, $arg) = @_; 2489 my ($who, $arg) = @_;
2144 2490
2145 if ($who->flag (FLAG_WIZ)) { 2491 if ($who->flag (FLAG_WIZ)) {
2146 $who->message ("start of reload."); 2492 $who->message ("reloading server.");
2493
2494 # doing reload synchronously and two reloads happen back-to-back,
2495 # coro crashes during coro_state_free->destroy here.
2496
2497 $RELOAD_WATCHER ||= Event->timer (
2498 reentrant => 0,
2499 after => 0,
2500 data => WF_AUTOCANCEL,
2501 cb => sub {
2147 reload; 2502 reload;
2148 $who->message ("end of reload."); 2503 undef $RELOAD_WATCHER;
2504 },
2505 );
2149 } 2506 }
2150}; 2507};
2151 2508
2152unshift @INC, $LIBDIR; 2509unshift @INC, $LIBDIR;
2510
2511my $bug_warning = 0;
2153 2512
2154$TICK_WATCHER = Event->timer ( 2513$TICK_WATCHER = Event->timer (
2155 reentrant => 0, 2514 reentrant => 0,
2515 parked => 1,
2156 prio => 0, 2516 prio => 0,
2157 at => $NEXT_TICK || $TICK, 2517 at => $NEXT_TICK || $TICK,
2158 data => WF_AUTOCANCEL, 2518 data => WF_AUTOCANCEL,
2159 cb => sub { 2519 cb => sub {
2160 unless ($FREEZE) { 2520 if ($Coro::current != $Coro::main) {
2521 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2522 unless ++$bug_warning > 10;
2523 return;
2524 }
2525
2526 $NOW = Event::time;
2527
2161 cf::server_tick; # one server iteration 2528 cf::server_tick; # one server iteration
2162 $RUNTIME += $TICK; 2529 $RUNTIME += $TICK;
2163 }
2164
2165 $NEXT_TICK += $TICK; 2530 $NEXT_TICK += $TICK;
2531
2532 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2533 $NEXT_RUNTIME_WRITE = $NOW + 10;
2534 Coro::async_pool {
2535 write_runtime
2536 or warn "ERROR: unable to write runtime file: $!";
2537 };
2538 }
2539
2540
2541 $WAIT_FOR_TICK->broadcast;
2542 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2543
2544# my $AFTER = Event::time;
2545# warn $AFTER - $NOW;#d#
2166 2546
2167 # if we are delayed by four ticks or more, skip them all 2547 # if we are delayed by four ticks or more, skip them all
2168 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2548 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2169 2549
2170 $TICK_WATCHER->at ($NEXT_TICK); 2550 $TICK_WATCHER->at ($NEXT_TICK);
2171 $TICK_WATCHER->start; 2551 $TICK_WATCHER->start;
2172 }, 2552 },
2173); 2553);
2174 2554
2555{
2175IO::AIO::max_poll_time $TICK * 0.2; 2556 BDB::max_poll_time $TICK * 0.1;
2176 2557 $BDB_POLL_WATCHER = Event->io (
2177Event->io ( 2558 reentrant => 0,
2178 fd => IO::AIO::poll_fileno, 2559 fd => BDB::poll_fileno,
2179 poll => 'r', 2560 poll => 'r',
2180 prio => 5, 2561 prio => 0,
2181 data => WF_AUTOCANCEL,
2182 cb => \&IO::AIO::poll_cb,
2183);
2184
2185Event->timer (
2186 data => WF_AUTOCANCEL, 2562 data => WF_AUTOCANCEL,
2187 after => 0, 2563 cb => \&BDB::poll_cb,
2188 interval => 10, 2564 );
2189 cb => sub { 2565 BDB::min_parallel 8;
2190 (Coro::unblock_sub { 2566
2191 write_runtime 2567 BDB::set_sync_prepare {
2192 or warn "ERROR: unable to write runtime file: $!"; 2568 my $status;
2569 my $current = $Coro::current;
2570 (
2571 sub {
2572 $status = $!;
2573 $current->ready; undef $current;
2574 },
2575 sub {
2576 Coro::schedule while defined $current;
2577 $! = $status;
2578 },
2579 )
2580 };
2581
2582 unless ($DB_ENV) {
2583 $DB_ENV = BDB::db_env_create;
2584
2585 cf::sync_job {
2586 eval {
2587 BDB::db_env_open
2588 $DB_ENV,
2589 $BDB_ENV_DIR,
2590 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2591 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2592 0666;
2593
2594 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2595
2596 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2597 $DB_ENV->set_lk_detect;
2598 };
2599
2600 cf::cleanup "db_env_open(db): $@" if $@;
2193 })->(); 2601 };
2194 }, 2602 }
2195); 2603}
2604
2605{
2606 IO::AIO::min_parallel 8;
2607
2608 undef $Coro::AIO::WATCHER;
2609 IO::AIO::max_poll_time $TICK * 0.1;
2610 $AIO_POLL_WATCHER = Event->io (
2611 reentrant => 0,
2612 data => WF_AUTOCANCEL,
2613 fd => IO::AIO::poll_fileno,
2614 poll => 'r',
2615 prio => 6,
2616 cb => \&IO::AIO::poll_cb,
2617 );
2618}
2196 2619
2197END { cf::emergency_save } 2620END { cf::emergency_save }
2198 2621
21991 26221
2200 2623

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