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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.129 by root, Wed Jan 3 00:41:19 2007 UTC vs.
Revision 1.214 by root, Wed Feb 14 00:40:05 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}
249 272
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 $guard
281}
282
250=item cf::async { BLOCK } 283=item cf::async { BLOCK }
251 284
252Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the 285Currently the same as Coro::async_pool, meaning you cannot use
253error instead of exiting the server in case of a problem. 286C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287thing you are allowed to do is call C<prio> on it.
254 288
255=cut 289=cut
256 290
257sub async(&) { 291BEGIN { *async = \&Coro::async_pool }
258 my ($cb) = @_;
259
260 Coro::async {
261 eval { $cb->() };
262 warn $@ if $@;
263 }
264}
265 292
266=item cf::sync_job { BLOCK } 293=item cf::sync_job { BLOCK }
267 294
268The design of crossfire+ requires that the main coro ($Coro::main) is 295The design of crossfire+ requires that the main coro ($Coro::main) is
269always able to handle events or runnable, as crossfire+ is only partly 296always able to handle events or runnable, as crossfire+ is only partly
283 # this is the main coro, too bad, we have to block 310 # this is the main coro, too bad, we have to block
284 # till the operation succeeds, freezing the server :/ 311 # till the operation succeeds, freezing the server :/
285 312
286 # TODO: use suspend/resume instead 313 # TODO: use suspend/resume instead
287 # (but this is cancel-safe) 314 # (but this is cancel-safe)
288 local $FREEZE = 1; 315 my $freeze_guard = freeze_mainloop;
289 316
290 my $busy = 1; 317 my $busy = 1;
291 my @res; 318 my @res;
292 319
293 (Coro::async { 320 (async {
294 @res = eval { $job->() }; 321 @res = eval { $job->() };
295 warn $@ if $@; 322 warn $@ if $@;
296 undef $busy; 323 undef $busy;
297 })->prio (Coro::PRIO_MAX); 324 })->prio (Coro::PRIO_MAX);
298 325
299 while ($busy) { 326 while ($busy) {
300 Coro::cede_notself; 327 Coro::cede or Event::one_event;
301 Event::one_event unless Coro::nready;
302 } 328 }
303 329
304 wantarray ? @res : $res[0] 330 wantarray ? @res : $res[0]
305 } else { 331 } else {
306 # we are in another coroutine, how wonderful, everything just works 332 # we are in another coroutine, how wonderful, everything just works
307 333
308 $job->() 334 $job->()
309 } 335 }
310} 336}
311 337
312=item $coro = cf::coro { BLOCK } 338=item $coro = cf::async_ext { BLOCK }
313 339
314Creates and returns a new coro. This coro is automcatially being canceled 340Like async, but this coro is automatically being canceled when the
315when the extension calling this is being unloaded. 341extension calling this is being unloaded.
316 342
317=cut 343=cut
318 344
319sub coro(&) { 345sub async_ext(&) {
320 my $cb = shift; 346 my $cb = shift;
321 347
322 my $coro = &cf::async ($cb); 348 my $coro = &Coro::async ($cb);
323 349
324 $coro->on_destroy (sub { 350 $coro->on_destroy (sub {
325 delete $EXT_CORO{$coro+0}; 351 delete $EXT_CORO{$coro+0};
326 }); 352 });
327 $EXT_CORO{$coro+0} = $coro; 353 $EXT_CORO{$coro+0} = $coro;
333 my $runtime = cf::localdir . "/runtime"; 359 my $runtime = cf::localdir . "/runtime";
334 360
335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 361 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336 or return; 362 or return;
337 363
364 my $value = $cf::RUNTIME + 90 + 10;
338 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
339 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
340 and return; 369 and return;
341 370
371 # always fsync - this file is important
342 aio_fsync $fh 372 aio_fsync $fh
343 and return; 373 and return;
344 374
345 close $fh 375 close $fh
346 or return; 376 or return;
352} 382}
353 383
354=back 384=back
355 385
356=cut 386=cut
357
358#############################################################################
359
360package cf::path;
361
362sub new {
363 my ($class, $path, $base) = @_;
364
365 $path = $path->as_string if ref $path;
366
367 my $self = bless { }, $class;
368
369 # {... are special paths that are not touched
370 # ?xxx/... are special absolute paths
371 # ?random/... random maps
372 # /! non-realised random map exit
373 # /... normal maps
374 # ~/... per-player maps without a specific player (DO NOT USE)
375 # ~user/... per-player map of a specific user
376
377 if ($path =~ /^{/) {
378 # fine as it is
379 } elsif ($path =~ s{^\?random/}{}) {
380 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381 $self->{random} = cf::from_json $data;
382 } else {
383 if ($path =~ s{^~([^/]+)?}{}) {
384 $self->{user_rel} = 1;
385
386 if (defined $1) {
387 $self->{user} = $1;
388 } elsif ($base =~ m{^~([^/]+)/}) {
389 $self->{user} = $1;
390 } else {
391 warn "cannot resolve user-relative path without user <$path,$base>\n";
392 }
393 } elsif ($path =~ /^\//) {
394 # already absolute
395 } else {
396 $base =~ s{[^/]+/?$}{};
397 return $class->new ("$base/$path");
398 }
399
400 for ($path) {
401 redo if s{/\.?/}{/};
402 redo if s{/[^/]+/\.\./}{/};
403 }
404 }
405
406 $self->{path} = $path;
407
408 $self
409}
410
411# the name / primary key / in-game path
412sub as_string {
413 my ($self) = @_;
414
415 $self->{user_rel} ? "~$self->{user}$self->{path}"
416 : $self->{random} ? "?random/$self->{path}"
417 : $self->{path}
418}
419
420# the displayed name, this is a one way mapping
421sub visible_name {
422 my ($self) = @_;
423
424# if (my $rmp = $self->{random}) {
425# # todo: be more intelligent about this
426# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427# } else {
428 $self->as_string
429# }
430}
431
432# escape the /'s in the path
433sub _escaped_path {
434 # ∕ is U+2215
435 (my $path = $_[0]{path}) =~ s/\//∕/g;
436 $path
437}
438
439# the original (read-only) location
440sub load_path {
441 my ($self) = @_;
442
443 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444}
445
446# the temporary/swap location
447sub save_path {
448 my ($self) = @_;
449
450 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453}
454
455# the unique path, might be eq to save_path
456sub uniq_path {
457 my ($self) = @_;
458
459 $self->{user_rel} || $self->{random}
460 ? undef
461 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462}
463
464# return random map parameters, or undef
465sub random_map_params {
466 my ($self) = @_;
467
468 $self->{random}
469}
470
471# this is somewhat ugly, but style maps do need special treatment
472sub is_style_map {
473 $_[0]{path} =~ m{^/styles/}
474}
475
476package cf;
477 387
478############################################################################# 388#############################################################################
479 389
480=head2 ATTACHABLE OBJECTS 390=head2 ATTACHABLE OBJECTS
481 391
607our @CB_TYPE = (); # registry for type (cf-object class) based events 517our @CB_TYPE = (); # registry for type (cf-object class) based events
608our @CB_MAP = (); 518our @CB_MAP = ();
609 519
610my %attachment; 520my %attachment;
611 521
522sub cf::attachable::thawer_merge {
523 # simply override everything except _meta
524 local $_[0]{_meta};
525 %{$_[0]} = %{$_[1]};
526}
527
612sub _attach_cb($$$$) { 528sub _attach_cb($$$$) {
613 my ($registry, $event, $prio, $cb) = @_; 529 my ($registry, $event, $prio, $cb) = @_;
614 530
615 use sort 'stable'; 531 use sort 'stable';
616 532
787# object support 703# object support
788 704
789sub reattach { 705sub reattach {
790 # basically do the same as instantiate, without calling instantiate 706 # basically do the same as instantiate, without calling instantiate
791 my ($obj) = @_; 707 my ($obj) = @_;
708
709 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792 710
793 my $registry = $obj->registry; 711 my $registry = $obj->registry;
794 712
795 @$registry = (); 713 @$registry = ();
796 714
843 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
844 762
845 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
847 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
849 close $fh; 767 close $fh;
850 768
851 if (@$objs) { 769 if (@$objs) {
852 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) {
853 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
854 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
855 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
856 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
857 close $fh; 775 close $fh;
858 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
859 } 777 }
860 } else { 778 } else {
861 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
867 } 785 }
868 } else { 786 } else {
869 aio_unlink $filename; 787 aio_unlink $filename;
870 aio_unlink "$filename.pst"; 788 aio_unlink "$filename.pst";
871 } 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 }
872 } 796 }
873} 797}
874 798
875sub object_freezer_as_string { 799sub object_freezer_as_string {
876 my ($rdata, $objs) = @_; 800 my ($rdata, $objs) = @_;
882 806
883sub object_thawer_load { 807sub object_thawer_load {
884 my ($filename) = @_; 808 my ($filename) = @_;
885 809
886 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$//;
887 814
888 (aio_load $filename, $data) >= 0 815 (aio_load $filename, $data) >= 0
889 or return; 816 or return;
890 817
891 unless (aio_stat "$filename.pst") { 818 unless (aio_stat "$filename.pst") {
928=cut 855=cut
929 856
930sub register_extcmd { 857sub register_extcmd {
931 my ($name, $cb) = @_; 858 my ($name, $cb) = @_;
932 859
933 my $caller = caller;
934 #warn "registering extcmd '$name' to '$caller'";
935
936 $EXTCMD{$name} = [$cb, $caller]; 860 $EXTCMD{$name} = $cb;
937} 861}
938 862
939cf::player->attach ( 863cf::player->attach (
940 on_command => sub { 864 on_command => sub {
941 my ($pl, $name, $params) = @_; 865 my ($pl, $name, $params) = @_;
954 878
955 my $msg = eval { from_json $buf }; 879 my $msg = eval { from_json $buf };
956 880
957 if (ref $msg) { 881 if (ref $msg) {
958 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 882 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959 if (my %reply = $cb->[0]->($pl, $msg)) { 883 if (my %reply = $cb->($pl, $msg)) {
960 $pl->ext_reply ($msg->{msgid}, %reply); 884 $pl->ext_reply ($msg->{msgid}, %reply);
961 } 885 }
962 } 886 }
963 } else { 887 } else {
964 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 888 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
966 890
967 cf::override; 891 cf::override;
968 }, 892 },
969); 893);
970 894
971sub register {
972 my ($base, $pkg) = @_;
973
974 #TODO
975}
976
977sub load_extension { 895sub load_extension {
978 my ($path) = @_; 896 my ($path) = @_;
979 897
980 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 898 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
981 my $base = $1; 899 my $base = $1;
982 my $pkg = $1; 900 my $pkg = $1;
983 $pkg =~ s/[^[:word:]]/_/g; 901 $pkg =~ s/[^[:word:]]/_/g;
984 $pkg = "ext::$pkg"; 902 $pkg = "ext::$pkg";
985 903
986 warn "loading '$path' into '$pkg'\n"; 904 warn "... loading '$path' into '$pkg'\n";
987 905
988 open my $fh, "<:utf8", $path 906 open my $fh, "<:utf8", $path
989 or die "$path: $!"; 907 or die "$path: $!";
990 908
991 my $source = 909 my $source =
992 "package $pkg; use strict; use utf8;\n" 910 "package $pkg; use strict; use utf8;\n"
993 . "#line 1 \"$path\"\n{\n" 911 . "#line 1 \"$path\"\n{\n"
994 . (do { local $/; <$fh> }) 912 . (do { local $/; <$fh> })
995 . "\n};\n1"; 913 . "\n};\n1";
996 914
997 eval $source 915 unless (eval $source) {
998 or die $@ ? "$path: $@\n" 916 my $msg = $@ ? "$path: $@\n"
999 : "extension disabled.\n"; 917 : "extension disabled.\n";
1000 918 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001 push @exts, $pkg; 919 warn $@;
1002 $ext_pkg{$base} = $pkg; 920 warn "mandatory extension failed to load, exiting.\n";
1003 921 exit 1;
1004# no strict 'refs'; 922 }
1005# @{"$pkg\::ISA"} = ext::; 923 die $@;
1006
1007 register $base, $pkg;
1008}
1009
1010sub unload_extension {
1011 my ($pkg) = @_;
1012
1013 warn "removing extension $pkg\n";
1014
1015 # remove hooks
1016 #TODO
1017# for my $idx (0 .. $#PLUGIN_EVENT) {
1018# delete $hook[$idx]{$pkg};
1019# } 924 }
1020 925
1021 # remove commands 926 push @EXTS, $pkg;
1022 for my $name (keys %COMMAND) {
1023 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025 if (@cb) {
1026 $COMMAND{$name} = \@cb;
1027 } else {
1028 delete $COMMAND{$name};
1029 }
1030 }
1031
1032 # remove extcmds
1033 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034 delete $EXTCMD{$name};
1035 }
1036
1037 if (my $cb = $pkg->can ("unload")) {
1038 eval {
1039 $cb->($pkg);
1040 1
1041 } or warn "$pkg unloaded, but with errors: $@";
1042 }
1043
1044 Symbol::delete_package $pkg;
1045} 927}
1046 928
1047sub load_extensions { 929sub load_extensions {
1048 for my $ext (<$LIBDIR/*.ext>) { 930 for my $ext (<$LIBDIR/*.ext>) {
1049 next unless -r $ext; 931 next unless -r $ext;
1053 } or warn "$ext not loaded: $@"; 935 } or warn "$ext not loaded: $@";
1054 } 936 }
1055} 937}
1056 938
1057############################################################################# 939#############################################################################
1058# load/save/clean perl data associated with a map
1059
1060*cf::mapsupport::on_clean = sub {
1061 my ($map) = @_;
1062
1063 my $path = $map->tmpname;
1064 defined $path or return;
1065
1066 unlink "$path.pst";
1067};
1068
1069cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071#############################################################################
1072# load/save perl data associated with player->ob objects
1073
1074sub all_objects(@) {
1075 @_, map all_objects ($_->inv), @_
1076}
1077
1078# TODO: compatibility cruft, remove when no longer needed
1079cf::player->attach (
1080 on_load => sub {
1081 my ($pl, $path) = @_;
1082
1083 for my $o (all_objects $pl->ob) {
1084 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085 $o->set_ob_key_value ("_perl_data");
1086
1087 %$o = %{ Storable::thaw pack "H*", $value };
1088 }
1089 }
1090 },
1091);
1092
1093#############################################################################
1094 940
1095=head2 CORE EXTENSIONS 941=head2 CORE EXTENSIONS
1096 942
1097Functions and methods that extend core crossfire objects. 943Functions and methods that extend core crossfire objects.
1098 944
945=cut
946
947package cf::player;
948
949use Coro::AIO;
950
1099=head3 cf::player 951=head3 cf::player
1100 952
1101=over 4 953=over 4
1102 954
1103=item cf::player::exists $login 955=item cf::player::find $login
1104 956
1105Returns true when the given account exists. 957Returns the given player object, loading it if necessary (might block).
1106 958
1107=cut 959=cut
1108 960
1109sub cf::player::exists($) { 961sub playerdir($) {
1110 cf::player::find $_[0] 962 cf::localdir
1111 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
1112} 1109}
1113 1110
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1111=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1112
1116Sends an ext reply to the player. 1113Sends an ext reply to the player.
1117 1114
1118=cut 1115=cut
1119 1116
1120sub cf::player::ext_reply($$$%) { 1117sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1118 my ($self, $id, %msg) = @_;
1122 1119
1123 $msg{msgid} = $id; 1120 $msg{msgid} = $id;
1124 1121
1125 $self->send ("ext " . to_json \%msg); 1122 $self->send ("ext " . cf::to_json \%msg);
1126} 1123}
1124
1125package cf;
1127 1126
1128=back 1127=back
1129 1128
1130 1129
1131=head3 cf::map 1130=head3 cf::map
1137package cf::map; 1136package cf::map;
1138 1137
1139use Fcntl; 1138use Fcntl;
1140use Coro::AIO; 1139use Coro::AIO;
1141 1140
1141use overload
1142 '""' => \&as_string,
1143 fallback => 1;
1144
1142our $MAX_RESET = 7200; 1145our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1146our $DEFAULT_RESET = 3000;
1144 1147
1145sub generate_random_map { 1148sub generate_random_map {
1146 my ($path, $rmp) = @_; 1149 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1150 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1151 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1152 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1153 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1154 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1155 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1156 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1157 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1158 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1159 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $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},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1161 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (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
1162} 1293}
1163 1294
1164# and all this just because we cannot iterate over 1295# and all this just because we cannot iterate over
1165# all maps in C++... 1296# all maps in C++...
1166sub change_all_map_light { 1297sub change_all_map_light {
1168 1299
1169 $_->change_map_light ($change) 1300 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1301 for grep $_->outdoor, values %cf::MAP;
1171} 1302}
1172 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
1173sub try_load_header($) { 1317sub load_header_from($) {
1174 my ($path) = @_; 1318 my ($self, $path) = @_;
1175 1319
1176 utf8::encode $path; 1320 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1321 #aio_open $path, O_RDONLY, 0
1322 # or return;
1323
1324 $self->_load_header ($path)
1178 or return; 1325 or return;
1179 1326
1180 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
1181 or return; 1370 or return;
1371 $self->prepare_orig;
1372 }
1182 1373
1183 $map->load_header ($path) 1374 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1375}
1190 1376
1191sub find_map; 1377sub find;
1192sub find_map { 1378sub find {
1193 my ($path, $origin) = @_; 1379 my ($path, $origin) = @_;
1194 1380
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1381 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1382
1200 cf::lock_wait "map_find:$key"; 1383 cf::lock_wait "map_find:$path";
1201 1384
1202 $cf::MAP{$key} || do { 1385 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1386 my $guard = cf::lock_acquire "map_find:$path";
1204 1387 my $map = new_from_path cf::map $path
1205 # do it the slow way
1206 my $map = try_load_header $path->save_path;
1207
1208 if ($map) {
1209 # safety
1210 $map->{instantiate_time} = $cf::RUNTIME
1211 if $map->{instantiate_time} > $cf::RUNTIME;
1212 } else {
1213 if (my $rmp = $path->random_map_params) {
1214 $map = generate_random_map $key, $rmp;
1215 } else {
1216 $map = try_load_header $path->load_path;
1217 }
1218
1219 $map or return; 1388 or return;
1220 1389
1221 $map->{load_original} = 1;
1222 $map->{instantiate_time} = $cf::RUNTIME;
1223 $map->instantiate;
1224
1225 # per-player maps become, after loading, normal maps
1226 $map->per_player (0) if $path->{user_rel};
1227 }
1228
1229 $map->path ($key);
1230 $map->{path} = $path;
1231 $map->{last_save} = $cf::RUNTIME; 1390 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1391
1234 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;
1235 $map->reset; 1398 $map->reset;
1236 undef $guard; 1399 undef $guard;
1237 $map = find_map $path 1400 return find $path;
1238 or return;
1239 } 1401 }
1240 1402
1241 $cf::MAP{$key} = $map 1403 $cf::MAP{$path} = $map
1242 } 1404 }
1243} 1405}
1406
1407sub pre_load { }
1408sub post_load { }
1244 1409
1245sub load { 1410sub load {
1246 my ($self) = @_; 1411 my ($self) = @_;
1247 1412
1413 local $self->{deny_reset} = 1; # loading can take a long time
1414
1248 my $path = $self->{path}; 1415 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1416 my $guard = cf::lock_acquire "map_load:$path";
1250 1417
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1418 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1419
1253 $self->in_memory (cf::MAP_LOADING); 1420 $self->in_memory (cf::MAP_LOADING);
1254 1421
1255 $self->alloc; 1422 $self->alloc;
1423
1424 $self->pre_load;
1425
1256 $self->load_objects ($self->{load_path}, 1) 1426 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1427 or return;
1258 1428
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1429 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1430 if delete $self->{load_original};
1261 1431
1262 if (my $uniq = $path->uniq_path) { 1432 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1433 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1434 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1435 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1436 $self->_load_objects ($uniq, 0);
1267 } 1437 }
1268 } 1438 }
1439
1440 Coro::cede;
1269 1441
1270 # now do the right thing for maps 1442 # now do the right thing for maps
1271 $self->link_multipart_objects; 1443 $self->link_multipart_objects;
1272 1444
1273 if ($self->{path}->is_style_map) { 1445 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1446 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1447 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1448 $self->update_buttons;
1449 Coro::cede;
1280 $self->set_darkness_map; 1450 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1451 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1452 unless $self->difficulty;
1453 Coro::cede;
1283 $self->activate; 1454 $self->activate;
1284 } 1455 }
1285 1456
1457 $self->post_load;
1458
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1459 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1460}
1288 1461
1289sub 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 {
1290 my ($path, $origin) = @_; 1496 my ($path, $origin) = @_;
1291 1497
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1498 cf::sync_job { find $path, $origin }
1499}
1293 1500
1294 cf::sync_job { 1501sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1502 my ($map) = @_;
1296 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;
1297 $map->load; 1525 $map->load;
1298 $map 1526
1527 delete $MAP_PREFETCH{$path};
1528 }
1529 }
1530 undef $MAP_PREFETCHER;
1299 } 1531 };
1532 $MAP_PREFETCHER->prio (6);
1533
1534 ()
1300} 1535}
1301 1536
1302sub save { 1537sub save {
1303 my ($self) = @_; 1538 my ($self) = @_;
1304 1539
1540 my $lock = cf::lock_acquire "map_data:" . $self->path;
1541
1305 $self->{last_save} = $cf::RUNTIME; 1542 $self->{last_save} = $cf::RUNTIME;
1306 1543
1307 return unless $self->dirty; 1544 return unless $self->dirty;
1308 1545
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1546 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1547 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1548
1312 $self->{load_path} = $save; 1549 $self->{load_path} = $save;
1313 1550
1314 return if $self->{deny_save}; 1551 return if $self->{deny_save};
1315 1552
1553 local $self->{last_access} = $self->last_access;#d#
1554
1555 cf::async {
1556 $_->contr->save for $self->players;
1557 };
1558
1316 if ($uniq) { 1559 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1560 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1561 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1562 } else {
1320 $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);
1321 } 1564 }
1322} 1565}
1323 1566
1324sub swap_out { 1567sub swap_out {
1325 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;
1326 1574
1327 return if $self->players; 1575 return if $self->players;
1328 return if $self->in_memory != cf::MAP_IN_MEMORY; 1576 return if $self->in_memory != cf::MAP_IN_MEMORY;
1329 return if $self->{deny_save}; 1577 return if $self->{deny_save};
1330 1578
1331 $self->save;
1332 $self->clear; 1579 $self->clear;
1333 $self->in_memory (cf::MAP_SWAPPED); 1580 $self->in_memory (cf::MAP_SWAPPED);
1334} 1581}
1335 1582
1336sub reset_at { 1583sub reset_at {
1337 my ($self) = @_; 1584 my ($self) = @_;
1338 1585
1339 # TODO: safety, remove and allow resettable per-player maps 1586 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel}; 1587 return 1e99 if $self->isa ("ext::map_per_player");#d#
1341 return 1e99 if $self->{deny_reset}; 1588 return 1e99 if $self->{deny_reset};
1342 1589
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1590 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 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;
1345 1592
1350 my ($self) = @_; 1597 my ($self) = @_;
1351 1598
1352 $self->reset_at <= $cf::RUNTIME 1599 $self->reset_at <= $cf::RUNTIME
1353} 1600}
1354 1601
1355sub unlink_save {
1356 my ($self) = @_;
1357
1358 utf8::encode (my $save = $self->{path}->save_path);
1359 aioreq_pri 3; IO::AIO::aio_unlink $save;
1360 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361}
1362
1363sub rename {
1364 my ($self, $new_path) = @_;
1365
1366 $self->unlink_save;
1367
1368 delete $cf::MAP{$self->path};
1369 $self->{path} = new cf::path $new_path;
1370 $self->path ($self->{path}->as_string);
1371 $cf::MAP{$self->path} = $self;
1372
1373 $self->save;
1374}
1375
1376sub reset { 1602sub reset {
1377 my ($self) = @_; 1603 my ($self) = @_;
1378 1604
1605 my $lock = cf::lock_acquire "map_data:$self->{path}";
1606
1379 return if $self->players; 1607 return if $self->players;
1380 return if $self->{path}{user_rel};#d# 1608 return if $self->isa ("ext::map_per_player");#d#
1381 1609
1382 warn "resetting map ", $self->path;#d# 1610 warn "resetting map ", $self->path;#d#
1383 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
1384 delete $cf::MAP{$self->path}; 1622 delete $cf::MAP{$self->path};
1623
1624 $self->clear;
1385 1625
1386 $_->clear_links_to ($self) for values %cf::MAP; 1626 $_->clear_links_to ($self) for values %cf::MAP;
1387 1627
1388 $self->unlink_save; 1628 $self->unlink_save;
1389 $self->destroy; 1629 $self->destroy;
1392my $nuke_counter = "aaaa"; 1632my $nuke_counter = "aaaa";
1393 1633
1394sub nuke { 1634sub nuke {
1395 my ($self) = @_; 1635 my ($self) = @_;
1396 1636
1637 delete $cf::MAP{$self->path};
1638
1639 $self->unlink_save;
1640
1641 bless $self, "cf::map";
1642 delete $self->{deny_reset};
1397 $self->{deny_save} = 1; 1643 $self->{deny_save} = 1;
1398 $self->reset_timeout (1); 1644 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++)); 1645 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646
1647 $cf::MAP{$self->path} = $self;
1648
1400 $self->reset; # polite request, might not happen 1649 $self->reset; # polite request, might not happen
1401} 1650}
1402 1651
1403sub customise_for { 1652=item cf::map::unique_maps
1404 my ($map, $ob) = @_;
1405 1653
1406 if ($map->per_player) { 1654Returns an arrayref of paths of all shared maps that have
1407 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1655instantiated unique items. May block.
1408 }
1409 1656
1410 $map 1657=cut
1411}
1412 1658
1413sub emergency_save { 1659sub unique_maps() {
1414 local $cf::FREEZE = 1; 1660 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1661 or return;
1415 1662
1416 warn "enter emergency map save\n"; 1663 my @paths;
1417 1664
1418 cf::sync_job { 1665 for (@$files) {
1419 warn "begin emergency map save\n"; 1666 utf8::decode $_;
1420 $_->save for values %cf::MAP; 1667 next if /\.pst$/;
1668 next unless /^$PATH_SEP/o;
1669
1670 push @paths, cf::map::normalise $_;
1421 }; 1671 }
1422 1672
1423 warn "end emergency map save\n"; 1673 \@paths
1424} 1674}
1425 1675
1426package cf; 1676package cf;
1427 1677
1428=back 1678=back
1429 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
1430 1706
1431=head3 cf::object::player 1707=head3 cf::object::player
1432 1708
1433=over 4 1709=over 4
1434 1710
1474 1750
1475=item $player_object->enter_link 1751=item $player_object->enter_link
1476 1752
1477Freezes 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}>).
1478 1754
1479The 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
1480I<MUST> call C<leave_link> as soon as possible, though. 1756I<MUST> call C<leave_link> as soon as possible, though.
1481 1757
1758Will never block.
1759
1482=item $player_object->leave_link ($map, $x, $y) 1760=item $player_object->leave_link ($map, $x, $y)
1483 1761
1484Moves 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
1485map 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
1486location 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
1487to the emergency map position. 1765fails, to the emergency map position.
1488 1766
1489Might block. 1767Might block.
1490 1768
1491=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}
1492 1780
1493sub cf::object::player::enter_link { 1781sub cf::object::player::enter_link {
1494 my ($self) = @_; 1782 my ($self) = @_;
1495 1783
1496 $self->deactivate_recursive; 1784 $self->deactivate_recursive;
1497 1785
1498 return if $self->map == $LINK_MAP; 1786 return if UNIVERSAL::isa $self->map, "ext::map_link";
1499 1787
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1788 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map; 1789 if $self->map;
1502 1790
1503 $self->enter_map ($LINK_MAP, 20, 20); 1791 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1504} 1792}
1505 1793
1506sub cf::object::player::leave_link { 1794sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_; 1795 my ($self, $map, $x, $y) = @_;
1508 1796
1509 my $link_pos = delete $self->{_link_pos}; 1797 my $link_pos = delete $self->{_link_pos};
1510 1798
1511 unless ($map) { 1799 unless ($map) {
1512 # restore original map position 1800 # restore original map position
1513 ($map, $x, $y) = @{ $link_pos || [] }; 1801 ($map, $x, $y) = @{ $link_pos || [] };
1514 $map = cf::map::find_map $map; 1802 $map = cf::map::find $map;
1515 1803
1516 unless ($map) { 1804 unless ($map) {
1517 ($map, $x, $y) = @$EMERGENCY_POSITION; 1805 ($map, $x, $y) = @$EMERGENCY_POSITION;
1518 $map = cf::map::find_map $map 1806 $map = cf::map::find $map
1519 or die "FATAL: cannot load emergency map\n"; 1807 or die "FATAL: cannot load emergency map\n";
1520 } 1808 }
1521 } 1809 }
1522 1810
1523 ($x, $y) = (-1, -1) 1811 ($x, $y) = (-1, -1)
1526 # use -1 or undef as default coordinates, not 0, 0 1814 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y) 1815 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0; 1816 if $x <=0 && $y <= 0;
1529 1817
1530 $map->load; 1818 $map->load;
1819 $map->load_diag;
1531 1820
1821 return unless $self->contr->active;
1532 $self->activate_recursive; 1822 $self->activate_recursive;
1533 $self->enter_map ($map, $x, $y); 1823 $self->enter_map ($map, $x, $y);
1534} 1824}
1535 1825
1536cf::player->attach ( 1826cf::player->attach (
1549 1839
1550 # try to abort aborted map switching on player login :) 1840 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes 1841 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) { 1842 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link; 1843 $pl->ob->enter_link;
1554 cf::async { 1844 (async {
1555 # we need this sleep as the login has a concurrent enter_exit running 1845 # we need this sleep as the login has a concurrent enter_exit running
1556 # and this sleep increases chances of the player not ending up in scorn 1846 # and this sleep increases chances of the player not ending up in scorn
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);
1557 Coro::Timer::sleep 1; 1851 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link; 1852 $pl->ob->leave_link;
1559 }; 1853 })->prio (2);
1560 } 1854 }
1561 }, 1855 },
1562); 1856);
1563 1857
1564=item $player_object->goto_map ($path, $x, $y) 1858=item $player_object->goto ($path, $x, $y)
1565 1859
1566=cut 1860=cut
1567 1861
1568sub cf::object::player::goto_map { 1862sub cf::object::player::goto {
1569 my ($self, $path, $x, $y) = @_; 1863 my ($self, $path, $x, $y) = @_;
1570 1864
1571 $self->enter_link; 1865 $self->enter_link;
1572 1866
1573 (cf::async { 1867 (async {
1574 $path = new cf::path $path; 1868 my $map = eval {
1575
1576 my $map = cf::map::find_map $path->as_string; 1869 my $map = cf::map::find $path;
1577 $map = $map->customise_for ($self) if $map; 1870 $map = $map->customise_for ($self) if $map;
1578 1871 $map
1579# warn "entering ", $map->path, " at ($x, $y)\n" 1872 } or
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1873 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583 1874
1584 $self->leave_link ($map, $x, $y); 1875 $self->leave_link ($map, $x, $y);
1585 })->prio (1); 1876 })->prio (1);
1586} 1877}
1587 1878
1591 1882
1592sub parse_random_map_params { 1883sub parse_random_map_params {
1593 my ($spec) = @_; 1884 my ($spec) = @_;
1594 1885
1595 my $rmp = { # defaults 1886 my $rmp = { # defaults
1596 xsize => 10, 1887 xsize => (cf::rndm 15, 40),
1597 ysize => 10, 1888 ysize => (cf::rndm 15, 40),
1889 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1890 #layout => string,
1598 }; 1891 };
1599 1892
1600 for (split /\n/, $spec) { 1893 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2; 1894 my ($k, $v) = split /\s+/, $_, 2;
1602 1895
1606 $rmp 1899 $rmp
1607} 1900}
1608 1901
1609sub prepare_random_map { 1902sub prepare_random_map {
1610 my ($exit) = @_; 1903 my ($exit) = @_;
1904
1905 my $guard = cf::lock_acquire "exit_prepare:$exit";
1611 1906
1612 # all this does is basically replace the /! path by 1907 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed 1908 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object 1909 # that depends on the exit object
1615 1910
1616 my $rmp = parse_random_map_params $exit->msg; 1911 my $rmp = parse_random_map_params $exit->msg;
1617 1912
1618 if ($exit->map) { 1913 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name; 1914 $rmp->{region} = $exit->region->name;
1620 $rmp->{origin_map} = $exit->map->path; 1915 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x; 1916 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y; 1917 $rmp->{origin_y} = $exit->y;
1623 } 1918 }
1624 1919
1625 $rmp->{random_seed} ||= $exit->random_seed; 1920 $rmp->{random_seed} ||= $exit->random_seed;
1626 1921
1627 my $data = cf::to_json $rmp; 1922 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data; 1923 my $md5 = Digest::MD5::md5_hex $data;
1924 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629 1925
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1926 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0; 1927 aio_write $fh, 0, (length $data), $data, 0;
1928 undef $fh;
1929 aio_rename "$meta~", $meta;
1632 1930
1633 $exit->slaying ("?random/$md5"); 1931 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef); 1932 $exit->msg (undef);
1635 } 1933 }
1636} 1934}
1638sub cf::object::player::enter_exit { 1936sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_; 1937 my ($self, $exit) = @_;
1640 1938
1641 return unless $self->type == cf::PLAYER; 1939 return unless $self->type == cf::PLAYER;
1642 1940
1941 if ($exit->slaying eq "/!") {
1942 #TODO: this should de-fi-ni-te-ly not be a sync-job
1943 cf::sync_job { prepare_random_map $exit };
1944 }
1945
1946 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1947 my $hp = $exit->stats->hp;
1948 my $sp = $exit->stats->sp;
1949
1643 $self->enter_link; 1950 $self->enter_link;
1644 1951
1645 (cf::async { 1952 (async {
1953 $self->deactivate_recursive; # just to be sure
1646 unless (eval { 1954 unless (eval {
1647 prepare_random_map $exit 1955 $self->goto ($slaying, $hp, $sp);
1648 if $exit->slaying eq "/!";
1649
1650 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652 1956
1653 1; 1957 1;
1654 }) { 1958 }) {
1655 $self->message ("Something went wrong deep within the crossfire server. " 1959 $self->message ("Something went wrong deep within the crossfire server. "
1656 . "I'll try to bring you back to the map you were before. " 1960 . "I'll try to bring you back to the map you were before. "
1657 . "Please report this to the dungeon master", 1961 . "Please report this to the dungeon master!",
1658 cf::NDI_UNIQUE | cf::NDI_RED); 1962 cf::NDI_UNIQUE | cf::NDI_RED);
1659 1963
1660 warn "ERROR in enter_exit: $@"; 1964 warn "ERROR in enter_exit: $@";
1661 $self->leave_link; 1965 $self->leave_link;
1662 } 1966 }
1717 # get handled first 2021 # get handled first
1718 my $queue = delete $ns->{query_queue} 2022 my $queue = delete $ns->{query_queue}
1719 or return; # be conservative, not sure how that can happen, but we saw a crash here 2023 or return; # be conservative, not sure how that can happen, but we saw a crash here
1720 2024
1721 (shift @$queue)->[1]->($msg); 2025 (shift @$queue)->[1]->($msg);
2026 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722 2027
1723 push @{ $ns->{query_queue} }, @$queue; 2028 push @{ $ns->{query_queue} }, @$queue;
1724 2029
1725 if (@{ $ns->{query_queue} } == @$queue) { 2030 if (@{ $ns->{query_queue} } == @$queue) {
1726 if (@$queue) { 2031 if (@$queue) {
1730 } 2035 }
1731 } 2036 }
1732 }, 2037 },
1733); 2038);
1734 2039
1735=item $client->coro (\&cb) 2040=item $client->async (\&cb)
1736 2041
1737Create a new coroutine, running the specified callback. The coroutine will 2042Create a new coroutine, running the specified callback. The coroutine will
1738be automatically cancelled when the client gets destroyed (e.g. on logout, 2043be automatically cancelled when the client gets destroyed (e.g. on logout,
1739or loss of connection). 2044or loss of connection).
1740 2045
1741=cut 2046=cut
1742 2047
1743sub cf::client::coro { 2048sub cf::client::async {
1744 my ($self, $cb) = @_; 2049 my ($self, $cb) = @_;
1745 2050
1746 my $coro = &cf::async ($cb); 2051 my $coro = &Coro::async ($cb);
1747 2052
1748 $coro->on_destroy (sub { 2053 $coro->on_destroy (sub {
1749 delete $self->{_coro}{$coro+0}; 2054 delete $self->{_coro}{$coro+0};
1750 }); 2055 });
1751 2056
1887The parameter C<$family> should best start with the name of the extension 2192The parameter C<$family> should best start with the name of the extension
1888using it, it should be unique. 2193using it, it should be unique.
1889 2194
1890=over 4 2195=over 4
1891 2196
1892=item $hashref = cf::db_get $family
1893
1894Return a hashref for use by the extension C<$family>, which can be
1895modified. After modifications, you have to call C<cf::db_dirty> or
1896C<cf::db_sync>.
1897
1898=item $value = cf::db_get $family => $key 2197=item $value = cf::db_get $family => $key
1899 2198
1900Returns a single value from the database 2199Returns a single value from the database.
1901
1902=item cf::db_put $family => $hashref
1903
1904Stores the given family hashref into the database. Updates are delayed, if
1905you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906 2200
1907=item cf::db_put $family => $key => $value 2201=item cf::db_put $family => $key => $value
1908 2202
1909Stores the given C<$value> in the family hash. Updates are delayed, if you 2203Stores the given C<$value> in the family.
1910want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912=item cf::db_dirty
1913
1914Marks the database as dirty, to be updated at a later time.
1915
1916=item cf::db_sync
1917
1918Immediately write the database to disk I<if it is dirty>.
1919 2204
1920=cut 2205=cut
1921 2206
1922our $DB; 2207our $DB;
1923 2208
1924{ 2209sub db_init {
2210 unless ($DB) {
2211 $DB = BDB::db_create $DB_ENV;
2212
2213 cf::sync_job {
2214 eval {
2215 $DB->set_flags (BDB::CHKSUM);
2216
2217 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2218 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2219 cf::cleanup "db_open(db): $!" if $!;
2220 };
2221 cf::cleanup "db_open(db): $@" if $@;
2222 };
2223
1925 my $path = cf::localdir . "/database.pst"; 2224 my $path = cf::localdir . "/database.pst";
2225 if (stat $path) {
2226 cf::sync_job {
2227 my $pst = Storable::retrieve $path;
1926 2228
1927 sub db_load() { 2229 cf::db_put (board => data => $pst->{board});
1928 $DB = stat $path ? Storable::retrieve $path : { }; 2230 cf::db_put (guildrules => data => $pst->{guildrules});
1929 } 2231 cf::db_put (rent => balance => $pst->{rent}{balance});
2232 BDB::db_env_txn_checkpoint $DB_ENV;
1930 2233
1931 my $pid; 2234 unlink $path;
1932
1933 sub db_save() {
1934 waitpid $pid, 0 if $pid;
1935 if (0 == ($pid = fork)) {
1936 $DB->{_meta}{version} = 1;
1937 Storable::nstore $DB, "$path~";
1938 rename "$path~", $path;
1939 cf::_exit 0 if defined $pid;
1940 } 2235 };
1941 }
1942
1943 my $dirty;
1944
1945 sub db_sync() {
1946 db_save if $dirty;
1947 undef $dirty;
1948 }
1949
1950 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951 db_sync;
1952 });
1953
1954 sub db_dirty() {
1955 $dirty = 1;
1956 $idle->start;
1957 }
1958
1959 sub db_get($;$) {
1960 @_ >= 2
1961 ? $DB->{$_[0]}{$_[1]}
1962 : ($DB->{$_[0]} ||= { })
1963 }
1964
1965 sub db_put($$;$) {
1966 if (@_ >= 3) {
1967 $DB->{$_[0]}{$_[1]} = $_[2];
1968 } else {
1969 $DB->{$_[0]} = $_[1];
1970 }
1971 db_dirty;
1972 }
1973
1974 cf::global->attach (
1975 prio => 10000,
1976 on_cleanup => sub {
1977 db_sync;
1978 }, 2236 }
1979 ); 2237 }
2238}
2239
2240sub db_get($$) {
2241 my $key = "$_[0]/$_[1]";
2242
2243 cf::sync_job {
2244 BDB::db_get $DB, undef, $key, my $data;
2245
2246 $! ? ()
2247 : Compress::LZF::sthaw $data
2248 }
2249}
2250
2251sub db_put($$$) {
2252 BDB::dbreq_pri 4;
2253 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1980} 2254}
1981 2255
1982############################################################################# 2256#############################################################################
1983# the server's main() 2257# the server's init and main functions
2258
2259sub load_resources {
2260 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2261 or die "unable to load regions file\n";#d#
2262}
1984 2263
1985sub cfg_load { 2264sub cfg_load {
1986 open my $fh, "<:utf8", cf::confdir . "/config" 2265 open my $fh, "<:utf8", cf::confdir . "/config"
1987 or return; 2266 or return;
1988 2267
1989 local $/; 2268 local $/;
1990 *CFG = YAML::Syck::Load <$fh>; 2269 *CFG = YAML::Syck::Load <$fh>;
2270
2271 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2272
2273 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2274 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2275
2276 if (exists $CFG{mlockall}) {
2277 eval {
2278 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2279 and die "WARNING: m(un)lockall failed: $!\n";
2280 };
2281 warn $@ if $@;
2282 }
2283}
2284
2285sub init {
2286 load_resources;
1991} 2287}
1992 2288
1993sub main { 2289sub main {
1994 # we must not ever block the main coroutine 2290 # we must not ever block the main coroutine
1995 local $Coro::idle = sub { 2291 local $Coro::idle = sub {
1996 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2292 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997 (Coro::unblock_sub { 2293 (async {
1998 Event::one_event; 2294 Event::one_event;
1999 })->(); 2295 })->prio (Coro::PRIO_MAX);
2000 }; 2296 };
2001 2297
2002 cfg_load; 2298 cfg_load;
2003 db_load; 2299 db_init;
2004 load_extensions; 2300 load_extensions;
2301
2302 $TICK_WATCHER->start;
2005 Event::loop; 2303 Event::loop;
2006} 2304}
2007 2305
2008############################################################################# 2306#############################################################################
2009# initialisation 2307# initialisation and cleanup
2308
2309# install some emergency cleanup handlers
2310BEGIN {
2311 for my $signal (qw(INT HUP TERM)) {
2312 Event->signal (
2313 reentrant => 0,
2314 data => WF_AUTOCANCEL,
2315 signal => $signal,
2316 prio => 0,
2317 cb => sub {
2318 cf::cleanup "SIG$signal";
2319 },
2320 );
2321 }
2322}
2323
2324sub emergency_save() {
2325 my $freeze_guard = cf::freeze_mainloop;
2326
2327 warn "enter emergency perl save\n";
2328
2329 cf::sync_job {
2330 # use a peculiar iteration method to avoid tripping on perl
2331 # refcount bugs in for. also avoids problems with players
2332 # and maps saved/destroyed asynchronously.
2333 warn "begin emergency player save\n";
2334 for my $login (keys %cf::PLAYER) {
2335 my $pl = $cf::PLAYER{$login} or next;
2336 $pl->valid or next;
2337 $pl->save;
2338 }
2339 warn "end emergency player save\n";
2340
2341 warn "begin emergency map save\n";
2342 for my $path (keys %cf::MAP) {
2343 my $map = $cf::MAP{$path} or next;
2344 $map->valid or next;
2345 $map->save;
2346 }
2347 warn "end emergency map save\n";
2348
2349 warn "begin emergency database checkpoint\n";
2350 BDB::db_env_txn_checkpoint $DB_ENV;
2351 warn "end emergency database checkpoint\n";
2352 };
2353
2354 warn "leave emergency perl save\n";
2355}
2356
2357sub post_cleanup {
2358 my ($make_core) = @_;
2359
2360 warn Carp::longmess "post_cleanup backtrace"
2361 if $make_core;
2362}
2010 2363
2011sub reload() { 2364sub reload() {
2012 # can/must only be called in main 2365 # can/must only be called in main
2013 if ($Coro::current != $Coro::main) { 2366 if ($Coro::current != $Coro::main) {
2014 warn "can only reload from main coroutine\n"; 2367 warn "can only reload from main coroutine";
2015 return; 2368 return;
2016 } 2369 }
2017 2370
2018 warn "reloading..."; 2371 warn "reloading...";
2019 2372
2020 local $FREEZE = 1; 2373 warn "entering sync_job";
2374
2375 cf::sync_job {
2376 cf::write_runtime; # external watchdog should not bark
2021 cf::emergency_save; 2377 cf::emergency_save;
2378 cf::write_runtime; # external watchdog should not bark
2022 2379
2023 eval { 2380 warn "syncing database to disk";
2381 BDB::db_env_txn_checkpoint $DB_ENV;
2382
2024 # if anything goes wrong in here, we should simply crash as we already saved 2383 # if anything goes wrong in here, we should simply crash as we already saved
2025 2384
2026 # cancel all watchers 2385 warn "cancelling all WF_AUTOCANCEL watchers";
2027 for (Event::all_watchers) { 2386 for (Event::all_watchers) {
2028 $_->cancel if $_->data & WF_AUTOCANCEL; 2387 $_->cancel if $_->data & WF_AUTOCANCEL;
2029 } 2388 }
2030 2389
2390 warn "flushing outstanding aio requests";
2391 for (;;) {
2392 BDB::flush;
2393 IO::AIO::flush;
2394 Coro::cede;
2395 last unless IO::AIO::nreqs || BDB::nreqs;
2396 warn "iterate...";
2397 }
2398
2031 # cancel all extension coros 2399 warn "cancelling all extension coros";
2032 $_->cancel for values %EXT_CORO; 2400 $_->cancel for values %EXT_CORO;
2033 %EXT_CORO = (); 2401 %EXT_CORO = ();
2034 2402
2035 # unload all extensions 2403 warn "removing commands";
2036 for (@exts) { 2404 %COMMAND = ();
2405
2406 warn "removing ext commands";
2407 %EXTCMD = ();
2408
2409 warn "unloading/nuking all extensions";
2410 for my $pkg (@EXTS) {
2037 warn "unloading <$_>"; 2411 warn "... unloading $pkg";
2038 unload_extension $_; 2412
2413 if (my $cb = $pkg->can ("unload")) {
2414 eval {
2415 $cb->($pkg);
2416 1
2417 } or warn "$pkg unloaded, but with errors: $@";
2039 } 2418 }
2040 2419
2420 warn "... nuking $pkg";
2421 Symbol::delete_package $pkg;
2422 }
2423
2041 # unload all modules loaded from $LIBDIR 2424 warn "unloading all perl modules loaded from $LIBDIR";
2042 while (my ($k, $v) = each %INC) { 2425 while (my ($k, $v) = each %INC) {
2043 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2426 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044 2427
2045 warn "removing <$k>"; 2428 warn "... unloading $k";
2046 delete $INC{$k}; 2429 delete $INC{$k};
2047 2430
2048 $k =~ s/\.pm$//; 2431 $k =~ s/\.pm$//;
2049 $k =~ s/\//::/g; 2432 $k =~ s/\//::/g;
2050 2433
2053 } 2436 }
2054 2437
2055 Symbol::delete_package $k; 2438 Symbol::delete_package $k;
2056 } 2439 }
2057 2440
2058 # sync database to disk
2059 cf::db_sync;
2060 IO::AIO::flush;
2061
2062 # get rid of safe::, as good as possible 2441 warn "getting rid of safe::, as good as possible";
2063 Symbol::delete_package "safe::$_" 2442 Symbol::delete_package "safe::$_"
2064 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2443 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065 2444
2066 # remove register_script_function callbacks
2067 # TODO
2068
2069 # unload cf.pm "a bit" 2445 warn "unloading cf.pm \"a bit\"";
2070 delete $INC{"cf.pm"}; 2446 delete $INC{"cf.pm"};
2071 2447
2072 # don't, removes xs symbols, too, 2448 # don't, removes xs symbols, too,
2073 # and global variables created in xs 2449 # and global variables created in xs
2074 #Symbol::delete_package __PACKAGE__; 2450 #Symbol::delete_package __PACKAGE__;
2075 2451
2076 # reload cf.pm 2452 warn "unload completed, starting to reload now";
2453
2077 warn "reloading cf.pm"; 2454 warn "reloading cf.pm";
2078 require cf; 2455 require cf;
2079 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2456 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080 2457
2081 # load config and database again 2458 warn "loading config and database again";
2082 cf::cfg_load; 2459 cf::cfg_load;
2083 cf::db_load;
2084 2460
2085 # load extensions
2086 warn "load extensions"; 2461 warn "loading extensions";
2087 cf::load_extensions; 2462 cf::load_extensions;
2088 2463
2089 # reattach attachments to objects 2464 warn "reattaching attachments to objects/players";
2090 warn "reattach";
2091 _global_reattach; 2465 _global_reattach;
2092 }; 2466 warn "reattaching attachments to maps";
2467 reattach $_ for values %MAP;
2093 2468
2094 if ($@) { 2469 warn "loading reloadable resources";
2470 load_resources;
2471
2472 warn "leaving sync_job";
2473
2474 1
2475 } or do {
2095 warn $@; 2476 warn $@;
2096 warn "error while reloading, exiting."; 2477 warn "error while reloading, exiting.";
2097 exit 1; 2478 exit 1;
2098 } 2479 };
2099 2480
2100 warn "reloaded successfully"; 2481 warn "reloaded";
2101}; 2482};
2102 2483
2103############################################################################# 2484our $RELOAD_WATCHER; # used only during reload
2104
2105unless ($LINK_MAP) {
2106 $LINK_MAP = cf::map::new;
2107
2108 $LINK_MAP->width (41);
2109 $LINK_MAP->height (41);
2110 $LINK_MAP->alloc;
2111 $LINK_MAP->path ("{link}");
2112 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115 # dirty hack because... archetypes are not yet loaded
2116 Event->timer (
2117 after => 2,
2118 cb => sub {
2119 $_[0]->w->cancel;
2120
2121 # provide some exits "home"
2122 my $exit = cf::object::new "exit";
2123
2124 $exit->slaying ($EMERGENCY_POSITION->[0]);
2125 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128 $LINK_MAP->insert ($exit->clone, 19, 19);
2129 $LINK_MAP->insert ($exit->clone, 19, 20);
2130 $LINK_MAP->insert ($exit->clone, 19, 21);
2131 $LINK_MAP->insert ($exit->clone, 20, 19);
2132 $LINK_MAP->insert ($exit->clone, 20, 21);
2133 $LINK_MAP->insert ($exit->clone, 21, 19);
2134 $LINK_MAP->insert ($exit->clone, 21, 20);
2135 $LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137 $exit->destroy;
2138 });
2139
2140 $LINK_MAP->{deny_save} = 1;
2141 $LINK_MAP->{deny_reset} = 1;
2142
2143 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144}
2145
2146register "<global>", __PACKAGE__;
2147 2485
2148register_command "reload" => sub { 2486register_command "reload" => sub {
2149 my ($who, $arg) = @_; 2487 my ($who, $arg) = @_;
2150 2488
2151 if ($who->flag (FLAG_WIZ)) { 2489 if ($who->flag (FLAG_WIZ)) {
2152 $who->message ("start of reload."); 2490 $who->message ("reloading server.");
2491
2492 # doing reload synchronously and two reloads happen back-to-back,
2493 # coro crashes during coro_state_free->destroy here.
2494
2495 $RELOAD_WATCHER ||= Event->timer (
2496 reentrant => 0,
2497 after => 0,
2498 data => WF_AUTOCANCEL,
2499 cb => sub {
2153 reload; 2500 reload;
2154 $who->message ("end of reload."); 2501 undef $RELOAD_WATCHER;
2502 },
2503 );
2155 } 2504 }
2156}; 2505};
2157 2506
2158unshift @INC, $LIBDIR; 2507unshift @INC, $LIBDIR;
2508
2509my $bug_warning = 0;
2159 2510
2160$TICK_WATCHER = Event->timer ( 2511$TICK_WATCHER = Event->timer (
2161 reentrant => 0, 2512 reentrant => 0,
2513 parked => 1,
2162 prio => 0, 2514 prio => 0,
2163 at => $NEXT_TICK || $TICK, 2515 at => $NEXT_TICK || $TICK,
2164 data => WF_AUTOCANCEL, 2516 data => WF_AUTOCANCEL,
2165 cb => sub { 2517 cb => sub {
2166 unless ($FREEZE) { 2518 if ($Coro::current != $Coro::main) {
2519 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2520 unless ++$bug_warning > 10;
2521 return;
2522 }
2523
2524 $NOW = Event::time;
2525
2167 cf::server_tick; # one server iteration 2526 cf::server_tick; # one server iteration
2168 $RUNTIME += $TICK; 2527 $RUNTIME += $TICK;
2169 }
2170
2171 $NEXT_TICK += $TICK; 2528 $NEXT_TICK += $TICK;
2529
2530 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2531 $NEXT_RUNTIME_WRITE = $NOW + 10;
2532 Coro::async_pool {
2533 write_runtime
2534 or warn "ERROR: unable to write runtime file: $!";
2535 };
2536 }
2537
2538
2539 $WAIT_FOR_TICK->broadcast;
2540 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2541
2542# my $AFTER = Event::time;
2543# warn $AFTER - $NOW;#d#
2172 2544
2173 # if we are delayed by four ticks or more, skip them all 2545 # if we are delayed by four ticks or more, skip them all
2174 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2546 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2175 2547
2176 $TICK_WATCHER->at ($NEXT_TICK); 2548 $TICK_WATCHER->at ($NEXT_TICK);
2177 $TICK_WATCHER->start; 2549 $TICK_WATCHER->start;
2178 }, 2550 },
2179); 2551);
2180 2552
2553{
2181IO::AIO::max_poll_time $TICK * 0.2; 2554 BDB::max_poll_time $TICK * 0.1;
2182 2555 $BDB_POLL_WATCHER = Event->io (
2183Event->io ( 2556 reentrant => 0,
2184 fd => IO::AIO::poll_fileno, 2557 fd => BDB::poll_fileno,
2185 poll => 'r', 2558 poll => 'r',
2186 prio => 5, 2559 prio => 0,
2187 data => WF_AUTOCANCEL,
2188 cb => \&IO::AIO::poll_cb,
2189);
2190
2191Event->timer (
2192 data => WF_AUTOCANCEL, 2560 data => WF_AUTOCANCEL,
2193 after => 0, 2561 cb => \&BDB::poll_cb,
2194 interval => 10, 2562 );
2195 cb => sub { 2563 BDB::min_parallel 8;
2196 (Coro::unblock_sub { 2564
2197 write_runtime 2565 BDB::set_sync_prepare {
2198 or warn "ERROR: unable to write runtime file: $!"; 2566 my $status;
2567 my $current = $Coro::current;
2568 (
2569 sub {
2570 $status = $!;
2571 $current->ready; undef $current;
2572 },
2573 sub {
2574 Coro::schedule while defined $current;
2575 $! = $status;
2576 },
2577 )
2578 };
2579
2580 unless ($DB_ENV) {
2581 $DB_ENV = BDB::db_env_create;
2582
2583 cf::sync_job {
2584 eval {
2585 BDB::db_env_open
2586 $DB_ENV,
2587 $BDB_ENV_DIR,
2588 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2589 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2590 0666;
2591
2592 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2593
2594 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2595 $DB_ENV->set_lk_detect;
2596 };
2597
2598 cf::cleanup "db_env_open(db): $@" if $@;
2199 })->(); 2599 };
2200 }, 2600 }
2201); 2601}
2602
2603{
2604 IO::AIO::min_parallel 8;
2605
2606 undef $Coro::AIO::WATCHER;
2607 IO::AIO::max_poll_time $TICK * 0.1;
2608 $AIO_POLL_WATCHER = Event->io (
2609 reentrant => 0,
2610 data => WF_AUTOCANCEL,
2611 fd => IO::AIO::poll_fileno,
2612 poll => 'r',
2613 prio => 6,
2614 cb => \&IO::AIO::poll_cb,
2615 );
2616}
2202 2617
2203END { cf::emergency_save } 2618END { cf::emergency_save }
2204 2619
22051 26201
2206 2621

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