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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.213 by root, Tue Feb 13 20:01:04 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
21use Data::Dumper;
20use Digest::MD5; 22use Digest::MD5;
21use Fcntl; 23use Fcntl;
22use IO::AIO 2.31 (); 24use IO::AIO 2.32 ();
23use YAML::Syck (); 25use YAML::Syck ();
24use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25 30
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27 34
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 36$YAML::Syck::ImplicitUnicode = 1;
30 37
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 39
35our %COMMAND = (); 40our %COMMAND = ();
36our %COMMAND_TIME = (); 41our %COMMAND_TIME = ();
42
43our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 44our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps
38 47
39our @EVENT; 48our @EVENT;
40our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
41 50
42our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 52our $TICK_WATCHER;
53our $AIO_POLL_WATCHER;
54our $WRITE_RUNTIME_WATCHER;
44our $NEXT_TICK; 55our $NEXT_TICK;
45our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
46 61
47our %CFG; 62our %CFG;
48 63
49our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 65our $RUNTIME;
51 66
67our %PLAYER; # all users
52our %MAP; # all maps 68our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 69our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75
76# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57 78
58binmode STDOUT; 79binmode STDOUT;
59binmode STDERR; 80binmode STDERR;
60 81
61# read virtual server time, if available 82# read virtual server time, if available
68mkdir cf::localdir; 89mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
73 95
74# a special map that is always available 96our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 97
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 98sub cf::map::normalise;
78 99
79############################################################################# 100#############################################################################
80 101
81=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
82 103
106 127
107=item %cf::CFG 128=item %cf::CFG
108 129
109Configuration for the server, loaded from C</etc/crossfire/config>, or 130Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 131from wherever your confdir points to.
132
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
134
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
137processing has been done. Call C<< ->wait >> on them to maximise the
138window of cpu time available, or simply to synchronise to the server tick.
111 139
112=back 140=back
113 141
114=cut 142=cut
115 143
119 utf8::encode $msg; 147 utf8::encode $msg;
120 148
121 $msg .= "\n" 149 $msg .= "\n"
122 unless $msg =~ /\n$/; 150 unless $msg =~ /\n$/;
123 151
124 LOG llevError, "cfperl: $msg"; 152 LOG llevError, $msg;
125 }; 153 };
126} 154}
127 155
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 175
148$Event::DIED = sub { 176$Event::DIED = sub {
149 warn "error in event callback: @_"; 177 warn "error in event callback: @_";
150}; 178};
151 179
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 180=head2 UTILITY FUNCTIONS
157 181
158=over 4 182=over 4
159 183
184=item dumpval $ref
185
160=cut 186=cut
187
188sub dumpval {
189 eval {
190 local $SIG{__DIE__};
191 my $d;
192 if (1) {
193 $d = new Data::Dumper([$_[0]], ["*var"]);
194 $d->Terse(1);
195 $d->Indent(2);
196 $d->Quotekeys(0);
197 $d->Useqq(1);
198 #$d->Bless(...);
199 $d->Seen($_[1]) if @_ > 1;
200 $d = $d->Dump();
201 }
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d
204 } || "[unable to dump $_[0]: '$@']";
205}
161 206
162use JSON::Syck (); # TODO# replace by JSON::PC once working 207use JSON::Syck (); # TODO# replace by JSON::PC once working
163 208
164=item $ref = cf::from_json $json 209=item $ref = cf::from_json $json
165 210
181sub to_json($) { 226sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 228 JSON::Syck::Dump $_[0]
184} 229}
185 230
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string 231=item cf::lock_wait $string
209 232
210Wait until the given lock is available. See cf::lock_acquire. 233Wait until the given lock is available. See cf::lock_acquire.
211 234
212=item my $lock = cf::lock_acquire $string 235=item my $lock = cf::lock_acquire $string
213 236
214Wait until the given lock is available and then acquires it and returns 237Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope, 238a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically 239for example when the coroutine gets canceled), the lock is automatically
217returned. 240returned.
218 241
219Lock names should begin with a unique identifier (for example, find_map 242Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 243uses map_find and cf::map::load uses map_load).
221 244
222=cut 245=cut
223 246
224our %LOCK; 247our %LOCK;
225 248
239 # wait, to be sure we are not locked 262 # wait, to be sure we are not locked
240 lock_wait $key; 263 lock_wait $key;
241 264
242 $LOCK{$key} = []; 265 $LOCK{$key} = [];
243 266
244 cf::guard { 267 Coro::guard {
245 # wake up all waiters, to be on the safe side 268 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 269 $_->ready for @{ delete $LOCK{$key} };
247 } 270 }
248} 271}
249 272
273sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active;
275
276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 $WRITE_RUNTIME_WATCHER->start;
279 };
280 $WRITE_RUNTIME_WATCHER->stop;
281 $TICK_WATCHER->stop;
282 $guard
283}
284
250=item cf::async { BLOCK } 285=item cf::async { BLOCK }
251 286
252Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the 287Currently the same as Coro::async_pool, meaning you cannot use
253error instead of exiting the server in case of a problem. 288C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
289thing you are allowed to do is call C<prio> on it.
254 290
255=cut 291=cut
256 292
257sub async(&) { 293BEGIN { *async = \&Coro::async_pool }
258 my ($cb) = @_;
259
260 Coro::async {
261 eval { $cb->() };
262 warn $@ if $@;
263 }
264}
265 294
266=item cf::sync_job { BLOCK } 295=item cf::sync_job { BLOCK }
267 296
268The design of crossfire+ requires that the main coro ($Coro::main) is 297The design of crossfire+ requires that the main coro ($Coro::main) is
269always able to handle events or runnable, as crossfire+ is only partly 298always able to handle events or runnable, as crossfire+ is only partly
283 # this is the main coro, too bad, we have to block 312 # this is the main coro, too bad, we have to block
284 # till the operation succeeds, freezing the server :/ 313 # till the operation succeeds, freezing the server :/
285 314
286 # TODO: use suspend/resume instead 315 # TODO: use suspend/resume instead
287 # (but this is cancel-safe) 316 # (but this is cancel-safe)
288 local $FREEZE = 1; 317 my $freeze_guard = freeze_mainloop;
289 318
290 my $busy = 1; 319 my $busy = 1;
291 my @res; 320 my @res;
292 321
293 (Coro::async { 322 (async {
294 @res = eval { $job->() }; 323 @res = eval { $job->() };
295 warn $@ if $@; 324 warn $@ if $@;
296 undef $busy; 325 undef $busy;
297 })->prio (Coro::PRIO_MAX); 326 })->prio (Coro::PRIO_MAX);
298 327
299 while ($busy) { 328 while ($busy) {
300 Coro::cede_notself; 329 Coro::cede or Event::one_event;
301 Event::one_event unless Coro::nready;
302 } 330 }
303 331
304 wantarray ? @res : $res[0] 332 wantarray ? @res : $res[0]
305 } else { 333 } else {
306 # we are in another coroutine, how wonderful, everything just works 334 # we are in another coroutine, how wonderful, everything just works
307 335
308 $job->() 336 $job->()
309 } 337 }
310} 338}
311 339
312=item $coro = cf::coro { BLOCK } 340=item $coro = cf::async_ext { BLOCK }
313 341
314Creates and returns a new coro. This coro is automcatially being canceled 342Like async, but this coro is automatically being canceled when the
315when the extension calling this is being unloaded. 343extension calling this is being unloaded.
316 344
317=cut 345=cut
318 346
319sub coro(&) { 347sub async_ext(&) {
320 my $cb = shift; 348 my $cb = shift;
321 349
322 my $coro = &cf::async ($cb); 350 my $coro = &Coro::async ($cb);
323 351
324 $coro->on_destroy (sub { 352 $coro->on_destroy (sub {
325 delete $EXT_CORO{$coro+0}; 353 delete $EXT_CORO{$coro+0};
326 }); 354 });
327 $EXT_CORO{$coro+0} = $coro; 355 $EXT_CORO{$coro+0} = $coro;
333 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
334 362
335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336 or return; 364 or return;
337 365
366 my $value = $cf::RUNTIME + 90 + 10;
338 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369
339 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
340 and return; 371 and return;
341 372
373 # always fsync - this file is important
342 aio_fsync $fh 374 aio_fsync $fh
343 and return; 375 and return;
344 376
345 close $fh 377 close $fh
346 or return; 378 or return;
352} 384}
353 385
354=back 386=back
355 387
356=cut 388=cut
357
358#############################################################################
359
360package cf::path;
361
362sub new {
363 my ($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;
477 389
478############################################################################# 390#############################################################################
479 391
480=head2 ATTACHABLE OBJECTS 392=head2 ATTACHABLE OBJECTS
481 393
607our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
608our @CB_MAP = (); 520our @CB_MAP = ();
609 521
610my %attachment; 522my %attachment;
611 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
612sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
613 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
614 532
615 use sort 'stable'; 533 use sort 'stable';
616 534
787# object support 705# object support
788 706
789sub reattach { 707sub reattach {
790 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
791 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792 712
793 my $registry = $obj->registry; 713 my $registry = $obj->registry;
794 714
795 @$registry = (); 715 @$registry = ();
796 716
843 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
844 764
845 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
847 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
849 close $fh; 769 close $fh;
850 770
851 if (@$objs) { 771 if (@$objs) {
852 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
854 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
855 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
856 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
857 close $fh; 777 close $fh;
858 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
859 } 779 }
860 } else { 780 } else {
861 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
867 } 787 }
868 } else { 788 } else {
869 aio_unlink $filename; 789 aio_unlink $filename;
870 aio_unlink "$filename.pst"; 790 aio_unlink "$filename.pst";
871 } 791 }
792
793 #d##TODO# nuke non .map-files if exist
794 if ($filename =~ s/\.map$//) {
795 aio_unlink $filename;
796 aio_unlink "$filename.pst";
797 }
872 } 798 }
873} 799}
874 800
875sub object_freezer_as_string { 801sub object_freezer_as_string {
876 my ($rdata, $objs) = @_; 802 my ($rdata, $objs) = @_;
882 808
883sub object_thawer_load { 809sub object_thawer_load {
884 my ($filename) = @_; 810 my ($filename) = @_;
885 811
886 my ($data, $av); 812 my ($data, $av);
813
814 #d#TODO remove .map if file does not exist
815 aio_stat $filename and $filename =~ s/\.map$//;
887 816
888 (aio_load $filename, $data) >= 0 817 (aio_load $filename, $data) >= 0
889 or return; 818 or return;
890 819
891 unless (aio_stat "$filename.pst") { 820 unless (aio_stat "$filename.pst") {
928=cut 857=cut
929 858
930sub register_extcmd { 859sub register_extcmd {
931 my ($name, $cb) = @_; 860 my ($name, $cb) = @_;
932 861
933 my $caller = caller;
934 #warn "registering extcmd '$name' to '$caller'";
935
936 $EXTCMD{$name} = [$cb, $caller]; 862 $EXTCMD{$name} = $cb;
937} 863}
938 864
939cf::player->attach ( 865cf::player->attach (
940 on_command => sub { 866 on_command => sub {
941 my ($pl, $name, $params) = @_; 867 my ($pl, $name, $params) = @_;
954 880
955 my $msg = eval { from_json $buf }; 881 my $msg = eval { from_json $buf };
956 882
957 if (ref $msg) { 883 if (ref $msg) {
958 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 884 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959 if (my %reply = $cb->[0]->($pl, $msg)) { 885 if (my %reply = $cb->($pl, $msg)) {
960 $pl->ext_reply ($msg->{msgid}, %reply); 886 $pl->ext_reply ($msg->{msgid}, %reply);
961 } 887 }
962 } 888 }
963 } else { 889 } else {
964 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 890 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
966 892
967 cf::override; 893 cf::override;
968 }, 894 },
969); 895);
970 896
971sub register {
972 my ($base, $pkg) = @_;
973
974 #TODO
975}
976
977sub load_extension { 897sub load_extension {
978 my ($path) = @_; 898 my ($path) = @_;
979 899
980 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 900 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
981 my $base = $1; 901 my $base = $1;
982 my $pkg = $1; 902 my $pkg = $1;
983 $pkg =~ s/[^[:word:]]/_/g; 903 $pkg =~ s/[^[:word:]]/_/g;
984 $pkg = "ext::$pkg"; 904 $pkg = "ext::$pkg";
985 905
986 warn "loading '$path' into '$pkg'\n"; 906 warn "... loading '$path' into '$pkg'\n";
987 907
988 open my $fh, "<:utf8", $path 908 open my $fh, "<:utf8", $path
989 or die "$path: $!"; 909 or die "$path: $!";
990 910
991 my $source = 911 my $source =
992 "package $pkg; use strict; use utf8;\n" 912 "package $pkg; use strict; use utf8;\n"
993 . "#line 1 \"$path\"\n{\n" 913 . "#line 1 \"$path\"\n{\n"
994 . (do { local $/; <$fh> }) 914 . (do { local $/; <$fh> })
995 . "\n};\n1"; 915 . "\n};\n1";
996 916
997 eval $source 917 unless (eval $source) {
998 or die $@ ? "$path: $@\n" 918 my $msg = $@ ? "$path: $@\n"
999 : "extension disabled.\n"; 919 : "extension disabled.\n";
1000 920 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001 push @exts, $pkg; 921 warn $@;
1002 $ext_pkg{$base} = $pkg; 922 warn "mandatory extension failed to load, exiting.\n";
1003 923 exit 1;
1004# no strict 'refs'; 924 }
1005# @{"$pkg\::ISA"} = ext::; 925 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# } 926 }
1020 927
1021 # remove commands 928 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} 929}
1046 930
1047sub load_extensions { 931sub load_extensions {
1048 for my $ext (<$LIBDIR/*.ext>) { 932 for my $ext (<$LIBDIR/*.ext>) {
1049 next unless -r $ext; 933 next unless -r $ext;
1053 } or warn "$ext not loaded: $@"; 937 } or warn "$ext not loaded: $@";
1054 } 938 }
1055} 939}
1056 940
1057############################################################################# 941#############################################################################
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 942
1095=head2 CORE EXTENSIONS 943=head2 CORE EXTENSIONS
1096 944
1097Functions and methods that extend core crossfire objects. 945Functions and methods that extend core crossfire objects.
1098 946
947=cut
948
949package cf::player;
950
951use Coro::AIO;
952
1099=head3 cf::player 953=head3 cf::player
1100 954
1101=over 4 955=over 4
1102 956
1103=item cf::player::exists $login 957=item cf::player::find $login
1104 958
1105Returns true when the given account exists. 959Returns the given player object, loading it if necessary (might block).
1106 960
1107=cut 961=cut
1108 962
1109sub cf::player::exists($) { 963sub playerdir($) {
1110 cf::player::find $_[0] 964 cf::localdir
1111 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 965 . "/"
966 . cf::playerdir
967 . "/"
968 . (ref $_[0] ? $_[0]->ob->name : $_[0])
969}
970
971sub path($) {
972 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973
974 (playerdir $login) . "/$login.pl"
975}
976
977sub find_active($) {
978 $cf::PLAYER{$_[0]}
979 and $cf::PLAYER{$_[0]}->active
980 and $cf::PLAYER{$_[0]}
981}
982
983sub exists($) {
984 my ($login) = @_;
985
986 $cf::PLAYER{$login}
987 or cf::sync_job { !aio_stat path $login }
988}
989
990sub find($) {
991 return $cf::PLAYER{$_[0]} || do {
992 my $login = $_[0];
993
994 my $guard = cf::lock_acquire "user_find:$login";
995
996 $cf::PLAYER{$_[0]} || do {
997 my $pl = load_pl path $login
998 or return;
999 $cf::PLAYER{$login} = $pl
1000 }
1001 }
1002}
1003
1004sub save($) {
1005 my ($pl) = @_;
1006
1007 return if $pl->{deny_save};
1008
1009 my $path = path $pl;
1010 my $guard = cf::lock_acquire "user_save:$path";
1011
1012 return if $pl->{deny_save};
1013
1014 aio_mkdir playerdir $pl, 0770;
1015 $pl->{last_save} = $cf::RUNTIME;
1016
1017 $pl->save_pl ($path);
1018 Coro::cede;
1019}
1020
1021sub new($) {
1022 my ($login) = @_;
1023
1024 my $self = create;
1025
1026 $self->ob->name ($login);
1027 $self->{deny_save} = 1;
1028
1029 $cf::PLAYER{$login} = $self;
1030
1031 $self
1032}
1033
1034=item $pl->quit_character
1035
1036Nukes the player without looking back. If logged in, the connection will
1037be destroyed. May block for a long time.
1038
1039=cut
1040
1041sub quit_character {
1042 my ($pl) = @_;
1043
1044 $pl->{deny_save} = 1;
1045 $pl->password ("*"); # this should lock out the player until we nuked the dir
1046
1047 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1048 $pl->deactivate;
1049 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1050 $pl->ns->destroy if $pl->ns;
1051
1052 my $path = playerdir $pl;
1053 my $temp = "$path~$cf::RUNTIME~deleting~";
1054 aio_rename $path, $temp;
1055 delete $cf::PLAYER{$pl->ob->name};
1056 $pl->destroy;
1057 IO::AIO::aio_rmtree $temp;
1058}
1059
1060=item cf::player::list_logins
1061
1062Returns am arrayref of all valid playernames in the system, can take a
1063while and may block, so not sync_job-capable, ever.
1064
1065=cut
1066
1067sub list_logins {
1068 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1069 or return [];
1070
1071 my @logins;
1072
1073 for my $login (@$dirs) {
1074 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1075 aio_read $fh, 0, 512, my $buf, 0 or next;
1076 $buf !~ /^password -------------$/m or next; # official not-valid tag
1077
1078 utf8::decode $login;
1079 push @logins, $login;
1080 }
1081
1082 \@logins
1083}
1084
1085=item $player->maps
1086
1087Returns an arrayref of map paths that are private for this
1088player. May block.
1089
1090=cut
1091
1092sub maps($) {
1093 my ($pl) = @_;
1094
1095 $pl = ref $pl ? $pl->ob->name : $pl;
1096
1097 my $files = aio_readdir playerdir $pl
1098 or return;
1099
1100 my @paths;
1101
1102 for (@$files) {
1103 utf8::decode $_;
1104 next if /\.(?:pl|pst)$/;
1105 next unless /^$PATH_SEP/o;
1106
1107 push @paths, cf::map::normalise "~$pl/$_";
1108 }
1109
1110 \@paths
1112} 1111}
1113 1112
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1113=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1114
1116Sends an ext reply to the player. 1115Sends an ext reply to the player.
1117 1116
1118=cut 1117=cut
1119 1118
1120sub cf::player::ext_reply($$$%) { 1119sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1120 my ($self, $id, %msg) = @_;
1122 1121
1123 $msg{msgid} = $id; 1122 $msg{msgid} = $id;
1124 1123
1125 $self->send ("ext " . to_json \%msg); 1124 $self->send ("ext " . cf::to_json \%msg);
1126} 1125}
1126
1127package cf;
1127 1128
1128=back 1129=back
1129 1130
1130 1131
1131=head3 cf::map 1132=head3 cf::map
1137package cf::map; 1138package cf::map;
1138 1139
1139use Fcntl; 1140use Fcntl;
1140use Coro::AIO; 1141use Coro::AIO;
1141 1142
1143use overload
1144 '""' => \&as_string,
1145 fallback => 1;
1146
1142our $MAX_RESET = 7200; 1147our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1148our $DEFAULT_RESET = 3000;
1144 1149
1145sub generate_random_map { 1150sub generate_random_map {
1146 my ($path, $rmp) = @_; 1151 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1152 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1153 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1154 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1155 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1156 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1157 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1158 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1159 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1160 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1161 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1162 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1163 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (cf::region::find $rmp->{region}) 1164 (cf::region::find $rmp->{region}), $rmp->{custom}
1165 )
1166}
1167
1168=item cf::map->register ($regex, $prio)
1169
1170Register a handler for the map path matching the given regex at the
1171givne priority (higher is better, built-in handlers have priority 0, the
1172default).
1173
1174=cut
1175
1176sub register {
1177 my (undef, $regex, $prio) = @_;
1178 my $pkg = caller;
1179
1180 no strict;
1181 push @{"$pkg\::ISA"}, __PACKAGE__;
1182
1183 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1184}
1185
1186# also paths starting with '/'
1187$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1188
1189sub thawer_merge {
1190 my ($self, $merge) = @_;
1191
1192 # we have to keep some variables in memory intact
1193 local $self->{path};
1194 local $self->{load_path};
1195 local $self->{deny_save};
1196 local $self->{deny_reset};
1197
1198 $self->SUPER::thawer_merge ($merge);
1199}
1200
1201sub normalise {
1202 my ($path, $base) = @_;
1203
1204 $path = "$path"; # make sure its a string
1205
1206 $path =~ s/\.map$//;
1207
1208 # map plan:
1209 #
1210 # /! non-realised random map exit (special hack!)
1211 # {... are special paths that are not being touched
1212 # ?xxx/... are special absolute paths
1213 # ?random/... random maps
1214 # /... normal maps
1215 # ~user/... per-player map of a specific user
1216
1217 $path =~ s/$PATH_SEP/\//go;
1218
1219 # treat it as relative path if it starts with
1220 # something that looks reasonable
1221 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1222 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1223
1224 $base =~ s{[^/]+/?$}{};
1225 $path = "$base/$path";
1226 }
1227
1228 for ($path) {
1229 redo if s{//}{/};
1230 redo if s{/\.?/}{/};
1231 redo if s{/[^/]+/\.\./}{/};
1232 }
1233
1234 $path
1235}
1236
1237sub new_from_path {
1238 my (undef, $path, $base) = @_;
1239
1240 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1241
1242 $path = normalise $path, $base;
1243
1244 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1245 if ($path =~ $EXT_MAP{$pkg}[1]) {
1246 my $self = bless cf::map::new, $pkg;
1247 $self->{path} = $path; $self->path ($path);
1248 $self->init; # pass $1 etc.
1249 return $self;
1250 }
1251 }
1252
1253 Carp::carp "unable to resolve path '$path' (base '$base').";
1254 ()
1255}
1256
1257sub init {
1258 my ($self) = @_;
1259
1260 $self
1261}
1262
1263sub as_string {
1264 my ($self) = @_;
1265
1266 "$self->{path}"
1267}
1268
1269# the displayed name, this is a one way mapping
1270sub visible_name {
1271 &as_string
1272}
1273
1274# the original (read-only) location
1275sub load_path {
1276 my ($self) = @_;
1277
1278 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1279}
1280
1281# the temporary/swap location
1282sub save_path {
1283 my ($self) = @_;
1284
1285 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1286 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1287}
1288
1289# the unique path, undef == no special unique path
1290sub uniq_path {
1291 my ($self) = @_;
1292
1293 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1294 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1162} 1295}
1163 1296
1164# and all this just because we cannot iterate over 1297# and all this just because we cannot iterate over
1165# all maps in C++... 1298# all maps in C++...
1166sub change_all_map_light { 1299sub change_all_map_light {
1168 1301
1169 $_->change_map_light ($change) 1302 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1303 for grep $_->outdoor, values %cf::MAP;
1171} 1304}
1172 1305
1306sub unlink_save {
1307 my ($self) = @_;
1308
1309 utf8::encode (my $save = $self->save_path);
1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313 #d#TODO remove .map and also nuke
1314 $save =~ s/\.map// or return;#d#
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317}
1318
1173sub try_load_header($) { 1319sub load_header_from($) {
1174 my ($path) = @_; 1320 my ($self, $path) = @_;
1175 1321
1176 utf8::encode $path; 1322 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1323 #aio_open $path, O_RDONLY, 0
1324 # or return;
1325
1326 $self->_load_header ($path)
1178 or return; 1327 or return;
1179 1328
1180 my $map = cf::map::new 1329 $self->{load_path} = $path;
1330
1331 1
1332}
1333
1334sub load_header_orig {
1335 my ($self) = @_;
1336
1337 $self->load_header_from ($self->load_path)
1338}
1339
1340sub load_header_temp {
1341 my ($self) = @_;
1342
1343 $self->load_header_from ($self->save_path)
1344}
1345
1346sub prepare_temp {
1347 my ($self) = @_;
1348
1349 $self->last_access ((delete $self->{last_access})
1350 || $cf::RUNTIME); #d#
1351 # safety
1352 $self->{instantiate_time} = $cf::RUNTIME
1353 if $self->{instantiate_time} > $cf::RUNTIME;
1354}
1355
1356sub prepare_orig {
1357 my ($self) = @_;
1358
1359 $self->{load_original} = 1;
1360 $self->{instantiate_time} = $cf::RUNTIME;
1361 $self->last_access ($cf::RUNTIME);
1362 $self->instantiate;
1363}
1364
1365sub load_header {
1366 my ($self) = @_;
1367
1368 if ($self->load_header_temp) {
1369 $self->prepare_temp;
1370 } else {
1371 $self->load_header_orig
1181 or return; 1372 or return;
1373 $self->prepare_orig;
1374 }
1182 1375
1183 $map->load_header ($path) 1376 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1377}
1190 1378
1191sub find_map; 1379sub find;
1192sub find_map { 1380sub find {
1193 my ($path, $origin) = @_; 1381 my ($path, $origin) = @_;
1194 1382
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1383 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1384
1200 cf::lock_wait "map_find:$key"; 1385 cf::lock_wait "map_find:$path";
1201 1386
1202 $cf::MAP{$key} || do { 1387 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1388 my $guard = cf::lock_acquire "map_find:$path";
1204 1389 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; 1390 or return;
1220 1391
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; 1392 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1393
1234 if ($map->should_reset) { 1394 $map->load_header
1395 or return;
1396
1397 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1398 # doing this can freeze the server in a sync job, obviously
1399 #$cf::WAIT_FOR_TICK->wait;
1235 $map->reset; 1400 $map->reset;
1236 undef $guard; 1401 undef $guard;
1237 $map = find_map $path 1402 return find $path;
1238 or return;
1239 } 1403 }
1240 1404
1241 $cf::MAP{$key} = $map 1405 $cf::MAP{$path} = $map
1242 } 1406 }
1243} 1407}
1408
1409sub pre_load { }
1410sub post_load { }
1244 1411
1245sub load { 1412sub load {
1246 my ($self) = @_; 1413 my ($self) = @_;
1247 1414
1415 local $self->{deny_reset} = 1; # loading can take a long time
1416
1248 my $path = $self->{path}; 1417 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1418 my $guard = cf::lock_acquire "map_load:$path";
1250 1419
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1420 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1421
1253 $self->in_memory (cf::MAP_LOADING); 1422 $self->in_memory (cf::MAP_LOADING);
1254 1423
1255 $self->alloc; 1424 $self->alloc;
1425
1426 $self->pre_load;
1427
1256 $self->load_objects ($self->{load_path}, 1) 1428 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1429 or return;
1258 1430
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1432 if delete $self->{load_original};
1261 1433
1262 if (my $uniq = $path->uniq_path) { 1434 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1435 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1436 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1437 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1438 $self->_load_objects ($uniq, 0);
1267 } 1439 }
1268 } 1440 }
1441
1442 Coro::cede;
1269 1443
1270 # now do the right thing for maps 1444 # now do the right thing for maps
1271 $self->link_multipart_objects; 1445 $self->link_multipart_objects;
1272 1446
1273 if ($self->{path}->is_style_map) { 1447 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1448 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1449 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1450 $self->update_buttons;
1451 Coro::cede;
1280 $self->set_darkness_map; 1452 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1453 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1454 unless $self->difficulty;
1455 Coro::cede;
1283 $self->activate; 1456 $self->activate;
1284 } 1457 }
1285 1458
1459 $self->post_load;
1460
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1461 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1462}
1288 1463
1289sub load_map_sync { 1464sub customise_for {
1465 my ($self, $ob) = @_;
1466
1467 return find "~" . $ob->name . "/" . $self->{path}
1468 if $self->per_player;
1469
1470 $self
1471}
1472
1473# find and load all maps in the 3x3 area around a map
1474sub load_diag {
1475 my ($map) = @_;
1476
1477 my @diag; # diagonal neighbours
1478
1479 for (0 .. 3) {
1480 my $neigh = $map->tile_path ($_)
1481 or next;
1482 $neigh = find $neigh, $map
1483 or next;
1484 $neigh->load;
1485
1486 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1487 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1488 }
1489
1490 for (@diag) {
1491 my $neigh = find @$_
1492 or next;
1493 $neigh->load;
1494 }
1495}
1496
1497sub find_sync {
1290 my ($path, $origin) = @_; 1498 my ($path, $origin) = @_;
1291 1499
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1500 cf::sync_job { find $path, $origin }
1501}
1293 1502
1294 cf::sync_job { 1503sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1504 my ($map) = @_;
1296 or return; 1505
1506 cf::sync_job { $map->load };
1507}
1508
1509our %MAP_PREFETCH;
1510our $MAP_PREFETCHER = undef;
1511
1512sub find_async {
1513 my ($path, $origin) = @_;
1514
1515 $path = normalise $path, $origin && $origin->{path};
1516
1517 if (my $map = $cf::MAP{$path}) {
1518 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1519 }
1520
1521 undef $MAP_PREFETCH{$path};
1522 $MAP_PREFETCHER ||= cf::async {
1523 while (%MAP_PREFETCH) {
1524 for my $path (keys %MAP_PREFETCH) {
1525 my $map = find $path
1526 or next;
1297 $map->load; 1527 $map->load;
1298 $map 1528
1529 delete $MAP_PREFETCH{$path};
1530 }
1531 }
1532 undef $MAP_PREFETCHER;
1299 } 1533 };
1534 $MAP_PREFETCHER->prio (6);
1535
1536 ()
1300} 1537}
1301 1538
1302sub save { 1539sub save {
1303 my ($self) = @_; 1540 my ($self) = @_;
1304 1541
1542 my $lock = cf::lock_acquire "map_data:" . $self->path;
1543
1305 $self->{last_save} = $cf::RUNTIME; 1544 $self->{last_save} = $cf::RUNTIME;
1306 1545
1307 return unless $self->dirty; 1546 return unless $self->dirty;
1308 1547
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1548 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1549 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1550
1312 $self->{load_path} = $save; 1551 $self->{load_path} = $save;
1313 1552
1314 return if $self->{deny_save}; 1553 return if $self->{deny_save};
1315 1554
1555 local $self->{last_access} = $self->last_access;#d#
1556
1557 cf::async {
1558 $_->contr->save for $self->players;
1559 };
1560
1316 if ($uniq) { 1561 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1562 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1563 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1564 } else {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1565 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321 } 1566 }
1322} 1567}
1323 1568
1324sub swap_out { 1569sub swap_out {
1325 my ($self) = @_; 1570 my ($self) = @_;
1326 1571
1327 # save first because save cedes 1572 # save first because save cedes
1328 $self->save; 1573 $self->save;
1574
1575 my $lock = cf::lock_acquire "map_data:" . $self->path;
1329 1576
1330 return if $self->players; 1577 return if $self->players;
1331 return if $self->in_memory != cf::MAP_IN_MEMORY; 1578 return if $self->in_memory != cf::MAP_IN_MEMORY;
1332 return if $self->{deny_save}; 1579 return if $self->{deny_save};
1333 1580
1337 1584
1338sub reset_at { 1585sub reset_at {
1339 my ($self) = @_; 1586 my ($self) = @_;
1340 1587
1341 # TODO: safety, remove and allow resettable per-player maps 1588 # TODO: safety, remove and allow resettable per-player maps
1342 return 1e99 if $self->{path}{user_rel}; 1589 return 1e99 if $self->isa ("ext::map_per_player");#d#
1343 return 1e99 if $self->{deny_reset}; 1590 return 1e99 if $self->{deny_reset};
1344 1591
1345 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1592 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1593 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347 1594
1352 my ($self) = @_; 1599 my ($self) = @_;
1353 1600
1354 $self->reset_at <= $cf::RUNTIME 1601 $self->reset_at <= $cf::RUNTIME
1355} 1602}
1356 1603
1357sub unlink_save {
1358 my ($self) = @_;
1359
1360 utf8::encode (my $save = $self->{path}->save_path);
1361 aioreq_pri 3; IO::AIO::aio_unlink $save;
1362 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363}
1364
1365sub rename {
1366 my ($self, $new_path) = @_;
1367
1368 $self->unlink_save;
1369
1370 delete $cf::MAP{$self->path};
1371 $self->{path} = new cf::path $new_path;
1372 $self->path ($self->{path}->as_string);
1373 $cf::MAP{$self->path} = $self;
1374
1375 $self->save;
1376}
1377
1378sub reset { 1604sub reset {
1379 my ($self) = @_; 1605 my ($self) = @_;
1380 1606
1607 my $lock = cf::lock_acquire "map_data:$self->{path}";
1608
1381 return if $self->players; 1609 return if $self->players;
1382 return if $self->{path}{user_rel};#d# 1610 return if $self->isa ("ext::map_per_player");#d#
1383 1611
1384 warn "resetting map ", $self->path;#d# 1612 warn "resetting map ", $self->path;#d#
1385 1613
1614 $self->in_memory (cf::MAP_SWAPPED);
1615
1616 # need to save uniques path
1617 unless ($self->{deny_save}) {
1618 my $uniq = $self->uniq_path; utf8::encode $uniq;
1619
1620 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1621 if $uniq;
1622 }
1623
1386 delete $cf::MAP{$self->path}; 1624 delete $cf::MAP{$self->path};
1625
1626 $self->clear;
1387 1627
1388 $_->clear_links_to ($self) for values %cf::MAP; 1628 $_->clear_links_to ($self) for values %cf::MAP;
1389 1629
1390 $self->unlink_save; 1630 $self->unlink_save;
1391 $self->destroy; 1631 $self->destroy;
1394my $nuke_counter = "aaaa"; 1634my $nuke_counter = "aaaa";
1395 1635
1396sub nuke { 1636sub nuke {
1397 my ($self) = @_; 1637 my ($self) = @_;
1398 1638
1639 delete $cf::MAP{$self->path};
1640
1641 $self->unlink_save;
1642
1643 bless $self, "cf::map";
1644 delete $self->{deny_reset};
1399 $self->{deny_save} = 1; 1645 $self->{deny_save} = 1;
1400 $self->reset_timeout (1); 1646 $self->reset_timeout (1);
1401 $self->rename ("{nuke}/" . ($nuke_counter++)); 1647 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648
1649 $cf::MAP{$self->path} = $self;
1650
1402 $self->reset; # polite request, might not happen 1651 $self->reset; # polite request, might not happen
1403} 1652}
1404 1653
1405sub customise_for { 1654=item cf::map::unique_maps
1406 my ($map, $ob) = @_;
1407 1655
1408 if ($map->per_player) { 1656Returns an arrayref of paths of all shared maps that have
1409 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1657instantiated unique items. May block.
1410 }
1411 1658
1412 $map 1659=cut
1413}
1414 1660
1415sub emergency_save { 1661sub unique_maps() {
1416 local $cf::FREEZE = 1; 1662 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1663 or return;
1417 1664
1418 warn "enter emergency map save\n"; 1665 my @paths;
1419 1666
1420 cf::sync_job { 1667 for (@$files) {
1421 warn "begin emergency map save\n"; 1668 utf8::decode $_;
1422 $_->save for values %cf::MAP; 1669 next if /\.pst$/;
1670 next unless /^$PATH_SEP/o;
1671
1672 push @paths, cf::map::normalise $_;
1423 }; 1673 }
1424 1674
1425 warn "end emergency map save\n"; 1675 \@paths
1426} 1676}
1427 1677
1428package cf; 1678package cf;
1429 1679
1430=back 1680=back
1431 1681
1682=head3 cf::object
1683
1684=cut
1685
1686package cf::object;
1687
1688=over 4
1689
1690=item $ob->inv_recursive
1691
1692Returns the inventory of the object _and_ their inventories, recursively.
1693
1694=cut
1695
1696sub inv_recursive_;
1697sub inv_recursive_ {
1698 map { $_, inv_recursive_ $_->inv } @_
1699}
1700
1701sub inv_recursive {
1702 inv_recursive_ inv $_[0]
1703}
1704
1705package cf;
1706
1707=back
1432 1708
1433=head3 cf::object::player 1709=head3 cf::object::player
1434 1710
1435=over 4 1711=over 4
1436 1712
1476 1752
1477=item $player_object->enter_link 1753=item $player_object->enter_link
1478 1754
1479Freezes the player and moves him/her to a special map (C<{link}>). 1755Freezes the player and moves him/her to a special map (C<{link}>).
1480 1756
1481The player should be reaosnably safe there for short amounts of time. You 1757The player should be reasonably safe there for short amounts of time. You
1482I<MUST> call C<leave_link> as soon as possible, though. 1758I<MUST> call C<leave_link> as soon as possible, though.
1483 1759
1760Will never block.
1761
1484=item $player_object->leave_link ($map, $x, $y) 1762=item $player_object->leave_link ($map, $x, $y)
1485 1763
1486Moves the player out of the specila link map onto the given map. If the 1764Moves the player out of the special C<{link}> map onto the specified
1487map is not valid (or omitted), the player will be moved back to the 1765map. If the map is not valid (or omitted), the player will be moved back
1488location he/she was before the call to C<enter_link>, or, if that fails, 1766to the location he/she was before the call to C<enter_link>, or, if that
1489to the emergency map position. 1767fails, to the emergency map position.
1490 1768
1491Might block. 1769Might block.
1492 1770
1493=cut 1771=cut
1772
1773sub link_map {
1774 unless ($LINK_MAP) {
1775 $LINK_MAP = cf::map::find "{link}"
1776 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1777 $LINK_MAP->load;
1778 }
1779
1780 $LINK_MAP
1781}
1494 1782
1495sub cf::object::player::enter_link { 1783sub cf::object::player::enter_link {
1496 my ($self) = @_; 1784 my ($self) = @_;
1497 1785
1498 $self->deactivate_recursive; 1786 $self->deactivate_recursive;
1499 1787
1500 return if $self->map == $LINK_MAP; 1788 return if UNIVERSAL::isa $self->map, "ext::map_link";
1501 1789
1502 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1790 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503 if $self->map; 1791 if $self->map;
1504 1792
1505 $self->enter_map ($LINK_MAP, 20, 20); 1793 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1506} 1794}
1507 1795
1508sub cf::object::player::leave_link { 1796sub cf::object::player::leave_link {
1509 my ($self, $map, $x, $y) = @_; 1797 my ($self, $map, $x, $y) = @_;
1510 1798
1511 my $link_pos = delete $self->{_link_pos}; 1799 my $link_pos = delete $self->{_link_pos};
1512 1800
1513 unless ($map) { 1801 unless ($map) {
1514 # restore original map position 1802 # restore original map position
1515 ($map, $x, $y) = @{ $link_pos || [] }; 1803 ($map, $x, $y) = @{ $link_pos || [] };
1516 $map = cf::map::find_map $map; 1804 $map = cf::map::find $map;
1517 1805
1518 unless ($map) { 1806 unless ($map) {
1519 ($map, $x, $y) = @$EMERGENCY_POSITION; 1807 ($map, $x, $y) = @$EMERGENCY_POSITION;
1520 $map = cf::map::find_map $map 1808 $map = cf::map::find $map
1521 or die "FATAL: cannot load emergency map\n"; 1809 or die "FATAL: cannot load emergency map\n";
1522 } 1810 }
1523 } 1811 }
1524 1812
1525 ($x, $y) = (-1, -1) 1813 ($x, $y) = (-1, -1)
1528 # use -1 or undef as default coordinates, not 0, 0 1816 # use -1 or undef as default coordinates, not 0, 0
1529 ($x, $y) = ($map->enter_x, $map->enter_y) 1817 ($x, $y) = ($map->enter_x, $map->enter_y)
1530 if $x <=0 && $y <= 0; 1818 if $x <=0 && $y <= 0;
1531 1819
1532 $map->load; 1820 $map->load;
1821 $map->load_diag;
1533 1822
1823 return unless $self->contr->active;
1534 $self->activate_recursive; 1824 $self->activate_recursive;
1535 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1536} 1826}
1537 1827
1538cf::player->attach ( 1828cf::player->attach (
1551 1841
1552 # try to abort aborted map switching on player login :) 1842 # try to abort aborted map switching on player login :)
1553 # should happen only on crashes 1843 # should happen only on crashes
1554 if ($pl->ob->{_link_pos}) { 1844 if ($pl->ob->{_link_pos}) {
1555 $pl->ob->enter_link; 1845 $pl->ob->enter_link;
1556 cf::async { 1846 (async {
1557 # we need this sleep as the login has a concurrent enter_exit running 1847 # we need this sleep as the login has a concurrent enter_exit running
1558 # and this sleep increases chances of the player not ending up in scorn 1848 # and this sleep increases chances of the player not ending up in scorn
1849 $pl->ob->reply (undef,
1850 "There was an internal problem at your last logout, "
1851 . "the server will try to bring you to your intended destination in a second.",
1852 cf::NDI_RED);
1559 Coro::Timer::sleep 1; 1853 Coro::Timer::sleep 1;
1560 $pl->ob->leave_link; 1854 $pl->ob->leave_link;
1561 }; 1855 })->prio (2);
1562 } 1856 }
1563 }, 1857 },
1564); 1858);
1565 1859
1566=item $player_object->goto_map ($path, $x, $y) 1860=item $player_object->goto ($path, $x, $y)
1567 1861
1568=cut 1862=cut
1569 1863
1570sub cf::object::player::goto_map { 1864sub cf::object::player::goto {
1571 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1572 1866
1573 $self->enter_link; 1867 $self->enter_link;
1574 1868
1575 (cf::async { 1869 (async {
1576 $path = new cf::path $path; 1870 my $map = eval {
1577
1578 my $map = cf::map::find_map $path->as_string; 1871 my $map = cf::map::find $path;
1579 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1580 1873 $map
1581# warn "entering ", $map->path, " at ($x, $y)\n" 1874 } or
1582# if $map;
1583
1584 $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);
1585 1876
1586 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1587 })->prio (1); 1878 })->prio (1);
1588} 1879}
1589 1880
1593 1884
1594sub parse_random_map_params { 1885sub parse_random_map_params {
1595 my ($spec) = @_; 1886 my ($spec) = @_;
1596 1887
1597 my $rmp = { # defaults 1888 my $rmp = { # defaults
1598 xsize => 10, 1889 xsize => (cf::rndm 15, 40),
1599 ysize => 10, 1890 ysize => (cf::rndm 15, 40),
1891 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1892 #layout => string,
1600 }; 1893 };
1601 1894
1602 for (split /\n/, $spec) { 1895 for (split /\n/, $spec) {
1603 my ($k, $v) = split /\s+/, $_, 2; 1896 my ($k, $v) = split /\s+/, $_, 2;
1604 1897
1608 $rmp 1901 $rmp
1609} 1902}
1610 1903
1611sub prepare_random_map { 1904sub prepare_random_map {
1612 my ($exit) = @_; 1905 my ($exit) = @_;
1906
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1613 1908
1614 # all this does is basically replace the /! path by 1909 # all this does is basically replace the /! path by
1615 # a new random map path (?random/...) with a seed 1910 # a new random map path (?random/...) with a seed
1616 # that depends on the exit object 1911 # that depends on the exit object
1617 1912
1618 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1619 1914
1620 if ($exit->map) { 1915 if ($exit->map) {
1621 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1622 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1623 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1624 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1625 } 1920 }
1626 1921
1627 $rmp->{random_seed} ||= $exit->random_seed; 1922 $rmp->{random_seed} ||= $exit->random_seed;
1628 1923
1629 my $data = cf::to_json $rmp; 1924 my $data = cf::to_json $rmp;
1630 my $md5 = Digest::MD5::md5_hex $data; 1925 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1631 1927
1632 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) {
1633 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;
1634 1932
1635 $exit->slaying ("?random/$md5"); 1933 $exit->slaying ("?random/$md5");
1636 $exit->msg (undef); 1934 $exit->msg (undef);
1637 } 1935 }
1638} 1936}
1640sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1641 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1642 1940
1643 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1644 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
1645 $self->enter_link; 1952 $self->enter_link;
1646 1953
1647 (cf::async { 1954 (async {
1955 $self->deactivate_recursive; # just to be sure
1648 unless (eval { 1956 unless (eval {
1649 prepare_random_map $exit 1957 $self->goto ($slaying, $hp, $sp);
1650 if $exit->slaying eq "/!";
1651
1652 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654 1958
1655 1; 1959 1;
1656 }) { 1960 }) {
1657 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1658 . "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. "
1659 . "Please report this to the dungeon master", 1963 . "Please report this to the dungeon master!",
1660 cf::NDI_UNIQUE | cf::NDI_RED); 1964 cf::NDI_UNIQUE | cf::NDI_RED);
1661 1965
1662 warn "ERROR in enter_exit: $@"; 1966 warn "ERROR in enter_exit: $@";
1663 $self->leave_link; 1967 $self->leave_link;
1664 } 1968 }
1719 # get handled first 2023 # get handled first
1720 my $queue = delete $ns->{query_queue} 2024 my $queue = delete $ns->{query_queue}
1721 or return; # be conservative, not sure how that can happen, but we saw a crash here 2025 or return; # be conservative, not sure how that can happen, but we saw a crash here
1722 2026
1723 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724 2029
1725 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1726 2031
1727 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1728 if (@$queue) { 2033 if (@$queue) {
1732 } 2037 }
1733 } 2038 }
1734 }, 2039 },
1735); 2040);
1736 2041
1737=item $client->coro (\&cb) 2042=item $client->async (\&cb)
1738 2043
1739Create a new coroutine, running the specified callback. The coroutine will 2044Create a new coroutine, running the specified callback. The coroutine will
1740be automatically cancelled when the client gets destroyed (e.g. on logout, 2045be automatically cancelled when the client gets destroyed (e.g. on logout,
1741or loss of connection). 2046or loss of connection).
1742 2047
1743=cut 2048=cut
1744 2049
1745sub cf::client::coro { 2050sub cf::client::async {
1746 my ($self, $cb) = @_; 2051 my ($self, $cb) = @_;
1747 2052
1748 my $coro = &cf::async ($cb); 2053 my $coro = &Coro::async ($cb);
1749 2054
1750 $coro->on_destroy (sub { 2055 $coro->on_destroy (sub {
1751 delete $self->{_coro}{$coro+0}; 2056 delete $self->{_coro}{$coro+0};
1752 }); 2057 });
1753 2058
1889The 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
1890using it, it should be unique. 2195using it, it should be unique.
1891 2196
1892=over 4 2197=over 4
1893 2198
1894=item $hashref = cf::db_get $family
1895
1896Return a hashref for use by the extension C<$family>, which can be
1897modified. After modifications, you have to call C<cf::db_dirty> or
1898C<cf::db_sync>.
1899
1900=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
1901 2200
1902Returns a single value from the database 2201Returns a single value from the database.
1903
1904=item cf::db_put $family => $hashref
1905
1906Stores the given family hashref into the database. Updates are delayed, if
1907you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908 2202
1909=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
1910 2204
1911Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
1912want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914=item cf::db_dirty
1915
1916Marks the database as dirty, to be updated at a later time.
1917
1918=item cf::db_sync
1919
1920Immediately write the database to disk I<if it is dirty>.
1921 2206
1922=cut 2207=cut
1923 2208
1924our $DB; 2209our $DB;
1925 2210
1926{ 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
1927 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;
1928 2230
1929 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
1930 $DB = stat $path ? Storable::retrieve $path : { }; 2232 cf::db_put (guildrules => data => $pst->{guildrules});
1931 } 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
1932 2235
1933 my $pid; 2236 unlink $path;
1934
1935 sub db_save() {
1936 waitpid $pid, 0 if $pid;
1937 if (0 == ($pid = fork)) {
1938 $DB->{_meta}{version} = 1;
1939 Storable::nstore $DB, "$path~";
1940 rename "$path~", $path;
1941 cf::_exit 0 if defined $pid;
1942 } 2237 };
1943 }
1944
1945 my $dirty;
1946
1947 sub db_sync() {
1948 db_save if $dirty;
1949 undef $dirty;
1950 }
1951
1952 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953 db_sync;
1954 });
1955
1956 sub db_dirty() {
1957 $dirty = 1;
1958 $idle->start;
1959 }
1960
1961 sub db_get($;$) {
1962 @_ >= 2
1963 ? $DB->{$_[0]}{$_[1]}
1964 : ($DB->{$_[0]} ||= { })
1965 }
1966
1967 sub db_put($$;$) {
1968 if (@_ >= 3) {
1969 $DB->{$_[0]}{$_[1]} = $_[2];
1970 } else {
1971 $DB->{$_[0]} = $_[1];
1972 }
1973 db_dirty;
1974 }
1975
1976 cf::global->attach (
1977 prio => 10000,
1978 on_cleanup => sub {
1979 db_sync;
1980 }, 2238 }
1981 ); 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 { };
1982} 2256}
1983 2257
1984############################################################################# 2258#############################################################################
1985# 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}
1986 2265
1987sub cfg_load { 2266sub cfg_load {
1988 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
1989 or return; 2268 or return;
1990 2269
1991 local $/; 2270 local $/;
1992 *CFG = YAML::Syck::Load <$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;
1993} 2289}
1994 2290
1995sub main { 2291sub main {
1996 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
1997 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
1998 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#
1999 (Coro::unblock_sub { 2295 (async {
2000 Event::one_event; 2296 Event::one_event;
2001 })->(); 2297 })->prio (Coro::PRIO_MAX);
2002 }; 2298 };
2003 2299
2004 cfg_load; 2300 cfg_load;
2005 db_load; 2301 db_init;
2006 load_extensions; 2302 load_extensions;
2303
2304 $TICK_WATCHER->start;
2305 $WRITE_RUNTIME_WATCHER->start;
2007 Event::loop; 2306 Event::loop;
2008} 2307}
2009 2308
2010############################################################################# 2309#############################################################################
2011# initialisation 2310# initialisation and cleanup
2311
2312# install some emergency cleanup handlers
2313BEGIN {
2314 for my $signal (qw(INT HUP TERM)) {
2315 Event->signal (
2316 reentrant => 0,
2317 data => WF_AUTOCANCEL,
2318 signal => $signal,
2319 prio => 0,
2320 cb => sub {
2321 cf::cleanup "SIG$signal";
2322 },
2323 );
2324 }
2325}
2326
2327sub emergency_save() {
2328 my $freeze_guard = cf::freeze_mainloop;
2329
2330 warn "enter emergency perl save\n";
2331
2332 cf::sync_job {
2333 # use a peculiar iteration method to avoid tripping on perl
2334 # refcount bugs in for. also avoids problems with players
2335 # and maps saved/destroyed asynchronously.
2336 warn "begin emergency player save\n";
2337 for my $login (keys %cf::PLAYER) {
2338 my $pl = $cf::PLAYER{$login} or next;
2339 $pl->valid or next;
2340 $pl->save;
2341 }
2342 warn "end emergency player save\n";
2343
2344 warn "begin emergency map save\n";
2345 for my $path (keys %cf::MAP) {
2346 my $map = $cf::MAP{$path} or next;
2347 $map->valid or next;
2348 $map->save;
2349 }
2350 warn "end emergency map save\n";
2351
2352 warn "begin emergency database checkpoint\n";
2353 BDB::db_env_txn_checkpoint $DB_ENV;
2354 warn "end emergency database checkpoint\n";
2355 };
2356
2357 warn "leave emergency perl save\n";
2358}
2359
2360sub post_cleanup {
2361 my ($make_core) = @_;
2362
2363 warn Carp::longmess "post_cleanup backtrace"
2364 if $make_core;
2365}
2012 2366
2013sub reload() { 2367sub reload() {
2014 # can/must only be called in main 2368 # can/must only be called in main
2015 if ($Coro::current != $Coro::main) { 2369 if ($Coro::current != $Coro::main) {
2016 warn "can only reload from main coroutine\n"; 2370 warn "can only reload from main coroutine";
2017 return; 2371 return;
2018 } 2372 }
2019 2373
2020 warn "reloading..."; 2374 warn "reloading...";
2021 2375
2022 local $FREEZE = 1; 2376 warn "entering sync_job";
2377
2378 cf::sync_job {
2379 cf::write_runtime;
2023 cf::emergency_save; 2380 cf::emergency_save;
2381 cf::write_runtime;
2024 2382
2025 eval { 2383 warn "syncing database to disk";
2384 BDB::db_env_txn_checkpoint $DB_ENV;
2385
2026 # if anything goes wrong in here, we should simply crash as we already saved 2386 # if anything goes wrong in here, we should simply crash as we already saved
2027 2387
2028 # cancel all watchers 2388 warn "cancelling all WF_AUTOCANCEL watchers";
2029 for (Event::all_watchers) { 2389 for (Event::all_watchers) {
2030 $_->cancel if $_->data & WF_AUTOCANCEL; 2390 $_->cancel if $_->data & WF_AUTOCANCEL;
2031 } 2391 }
2032 2392
2393 warn "flushing outstanding aio requests";
2394 for (;;) {
2395 BDB::flush;
2396 IO::AIO::flush;
2397 Coro::cede;
2398 last unless IO::AIO::nreqs || BDB::nreqs;
2399 warn "iterate...";
2400 }
2401
2033 # cancel all extension coros 2402 warn "cancelling all extension coros";
2034 $_->cancel for values %EXT_CORO; 2403 $_->cancel for values %EXT_CORO;
2035 %EXT_CORO = (); 2404 %EXT_CORO = ();
2036 2405
2037 # unload all extensions 2406 warn "removing commands";
2038 for (@exts) { 2407 %COMMAND = ();
2408
2409 warn "removing ext commands";
2410 %EXTCMD = ();
2411
2412 warn "unloading/nuking all extensions";
2413 for my $pkg (@EXTS) {
2039 warn "unloading <$_>"; 2414 warn "... unloading $pkg";
2040 unload_extension $_; 2415
2416 if (my $cb = $pkg->can ("unload")) {
2417 eval {
2418 $cb->($pkg);
2419 1
2420 } or warn "$pkg unloaded, but with errors: $@";
2041 } 2421 }
2042 2422
2423 warn "... nuking $pkg";
2424 Symbol::delete_package $pkg;
2425 }
2426
2043 # unload all modules loaded from $LIBDIR 2427 warn "unloading all perl modules loaded from $LIBDIR";
2044 while (my ($k, $v) = each %INC) { 2428 while (my ($k, $v) = each %INC) {
2045 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2429 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046 2430
2047 warn "removing <$k>"; 2431 warn "... unloading $k";
2048 delete $INC{$k}; 2432 delete $INC{$k};
2049 2433
2050 $k =~ s/\.pm$//; 2434 $k =~ s/\.pm$//;
2051 $k =~ s/\//::/g; 2435 $k =~ s/\//::/g;
2052 2436
2055 } 2439 }
2056 2440
2057 Symbol::delete_package $k; 2441 Symbol::delete_package $k;
2058 } 2442 }
2059 2443
2060 # sync database to disk
2061 cf::db_sync;
2062 IO::AIO::flush;
2063
2064 # get rid of safe::, as good as possible 2444 warn "getting rid of safe::, as good as possible";
2065 Symbol::delete_package "safe::$_" 2445 Symbol::delete_package "safe::$_"
2066 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2446 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067 2447
2068 # remove register_script_function callbacks
2069 # TODO
2070
2071 # unload cf.pm "a bit" 2448 warn "unloading cf.pm \"a bit\"";
2072 delete $INC{"cf.pm"}; 2449 delete $INC{"cf.pm"};
2073 2450
2074 # don't, removes xs symbols, too, 2451 # don't, removes xs symbols, too,
2075 # and global variables created in xs 2452 # and global variables created in xs
2076 #Symbol::delete_package __PACKAGE__; 2453 #Symbol::delete_package __PACKAGE__;
2077 2454
2078 # reload cf.pm 2455 warn "unload completed, starting to reload now";
2456
2079 warn "reloading cf.pm"; 2457 warn "reloading cf.pm";
2080 require cf; 2458 require cf;
2081 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2459 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082 2460
2083 # load config and database again 2461 warn "loading config and database again";
2084 cf::cfg_load; 2462 cf::cfg_load;
2085 cf::db_load;
2086 2463
2087 # load extensions
2088 warn "load extensions"; 2464 warn "loading extensions";
2089 cf::load_extensions; 2465 cf::load_extensions;
2090 2466
2091 # reattach attachments to objects 2467 warn "reattaching attachments to objects/players";
2092 warn "reattach";
2093 _global_reattach; 2468 _global_reattach;
2094 }; 2469 warn "reattaching attachments to maps";
2470 reattach $_ for values %MAP;
2095 2471
2096 if ($@) { 2472 warn "loading reloadable resources";
2473 load_resources;
2474
2475 warn "leaving sync_job";
2476
2477 1
2478 } or do {
2097 warn $@; 2479 warn $@;
2098 warn "error while reloading, exiting."; 2480 warn "error while reloading, exiting.";
2099 exit 1; 2481 exit 1;
2100 } 2482 };
2101 2483
2102 warn "reloaded successfully"; 2484 warn "reloaded";
2103}; 2485};
2104 2486
2105############################################################################# 2487our $RELOAD_WATCHER; # used only during reload
2106
2107unless ($LINK_MAP) {
2108 $LINK_MAP = cf::map::new;
2109
2110 $LINK_MAP->width (41);
2111 $LINK_MAP->height (41);
2112 $LINK_MAP->alloc;
2113 $LINK_MAP->path ("{link}");
2114 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117 # dirty hack because... archetypes are not yet loaded
2118 Event->timer (
2119 after => 2,
2120 cb => sub {
2121 $_[0]->w->cancel;
2122
2123 # provide some exits "home"
2124 my $exit = cf::object::new "exit";
2125
2126 $exit->slaying ($EMERGENCY_POSITION->[0]);
2127 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130 $LINK_MAP->insert ($exit->clone, 19, 19);
2131 $LINK_MAP->insert ($exit->clone, 19, 20);
2132 $LINK_MAP->insert ($exit->clone, 19, 21);
2133 $LINK_MAP->insert ($exit->clone, 20, 19);
2134 $LINK_MAP->insert ($exit->clone, 20, 21);
2135 $LINK_MAP->insert ($exit->clone, 21, 19);
2136 $LINK_MAP->insert ($exit->clone, 21, 20);
2137 $LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139 $exit->destroy;
2140 });
2141
2142 $LINK_MAP->{deny_save} = 1;
2143 $LINK_MAP->{deny_reset} = 1;
2144
2145 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146}
2147
2148register "<global>", __PACKAGE__;
2149 2488
2150register_command "reload" => sub { 2489register_command "reload" => sub {
2151 my ($who, $arg) = @_; 2490 my ($who, $arg) = @_;
2152 2491
2153 if ($who->flag (FLAG_WIZ)) { 2492 if ($who->flag (FLAG_WIZ)) {
2154 $who->message ("start of reload."); 2493 $who->message ("reloading server.");
2494
2495 # doing reload synchronously and two reloads happen back-to-back,
2496 # coro crashes during coro_state_free->destroy here.
2497
2498 $RELOAD_WATCHER ||= Event->timer (
2499 reentrant => 0,
2500 after => 0,
2501 data => WF_AUTOCANCEL,
2502 cb => sub {
2155 reload; 2503 reload;
2156 $who->message ("end of reload."); 2504 undef $RELOAD_WATCHER;
2505 },
2506 );
2157 } 2507 }
2158}; 2508};
2159 2509
2160unshift @INC, $LIBDIR; 2510unshift @INC, $LIBDIR;
2511
2512my $bug_warning = 0;
2161 2513
2162$TICK_WATCHER = Event->timer ( 2514$TICK_WATCHER = Event->timer (
2163 reentrant => 0, 2515 reentrant => 0,
2516 parked => 1,
2164 prio => 0, 2517 prio => 0,
2165 at => $NEXT_TICK || $TICK, 2518 at => $NEXT_TICK || $TICK,
2166 data => WF_AUTOCANCEL, 2519 data => WF_AUTOCANCEL,
2167 cb => sub { 2520 cb => sub {
2168 unless ($FREEZE) { 2521 if ($Coro::current != $Coro::main) {
2522 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2523 unless ++$bug_warning > 10;
2524 return;
2525 }
2526
2527 $NOW = Event::time;
2528
2169 cf::server_tick; # one server iteration 2529 cf::server_tick; # one server iteration
2170 $RUNTIME += $TICK; 2530 $RUNTIME += $TICK;
2171 }
2172
2173 $NEXT_TICK += $TICK; 2531 $NEXT_TICK += $TICK;
2532
2533 $WAIT_FOR_TICK->broadcast;
2534 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2535
2536# my $AFTER = Event::time;
2537# warn $AFTER - $NOW;#d#
2174 2538
2175 # if we are delayed by four ticks or more, skip them all 2539 # if we are delayed by four ticks or more, skip them all
2176 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2540 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2177 2541
2178 $TICK_WATCHER->at ($NEXT_TICK); 2542 $TICK_WATCHER->at ($NEXT_TICK);
2179 $TICK_WATCHER->start; 2543 $TICK_WATCHER->start;
2180 }, 2544 },
2181); 2545);
2182 2546
2547{
2548 BDB::max_poll_time $TICK * 0.1;
2549 $BDB_POLL_WATCHER = Event->io (
2550 reentrant => 0,
2551 fd => BDB::poll_fileno,
2552 poll => 'r',
2553 prio => 0,
2554 data => WF_AUTOCANCEL,
2555 cb => \&BDB::poll_cb,
2556 );
2557 BDB::min_parallel 8;
2558
2559 BDB::set_sync_prepare {
2560 my $status;
2561 my $current = $Coro::current;
2562 (
2563 sub {
2564 $status = $!;
2565 $current->ready; undef $current;
2566 },
2567 sub {
2568 Coro::schedule while defined $current;
2569 $! = $status;
2570 },
2571 )
2572 };
2573
2574 unless ($DB_ENV) {
2575 $DB_ENV = BDB::db_env_create;
2576
2577 cf::sync_job {
2578 eval {
2579 BDB::db_env_open
2580 $DB_ENV,
2581 $BDB_ENV_DIR,
2582 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2583 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2584 0666;
2585
2586 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2587
2588 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2589 $DB_ENV->set_lk_detect;
2590 };
2591
2592 cf::cleanup "db_env_open(db): $@" if $@;
2593 };
2594 }
2595}
2596
2597{
2598 IO::AIO::min_parallel 8;
2599
2600 undef $Coro::AIO::WATCHER;
2183IO::AIO::max_poll_time $TICK * 0.2; 2601 IO::AIO::max_poll_time $TICK * 0.1;
2184 2602 $AIO_POLL_WATCHER = Event->io (
2185Event->io ( 2603 reentrant => 0,
2186 fd => IO::AIO::poll_fileno, 2604 fd => IO::AIO::poll_fileno,
2187 poll => 'r', 2605 poll => 'r',
2188 prio => 5, 2606 prio => 6,
2189 data => WF_AUTOCANCEL, 2607 data => WF_AUTOCANCEL,
2190 cb => \&IO::AIO::poll_cb, 2608 cb => \&IO::AIO::poll_cb,
2191); 2609 );
2610}
2192 2611
2193Event->timer ( 2612$WRITE_RUNTIME_WATCHER = Event->timer (
2613 reentrant => 0,
2194 data => WF_AUTOCANCEL, 2614 data => WF_AUTOCANCEL,
2615 parked => 1,
2195 after => 0, 2616 after => 1,
2196 interval => 10, 2617 interval => 10,
2618 prio => 6, # keep it lowest so it acts like a watchdog
2197 cb => sub { 2619 cb => sub {
2198 (Coro::unblock_sub { 2620 $TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
2621
2622 Coro::async_pool {
2199 write_runtime 2623 write_runtime
2200 or warn "ERROR: unable to write runtime file: $!"; 2624 or warn "ERROR: unable to write runtime file: $!";
2201 })->(); 2625 };
2202 }, 2626 },
2203); 2627);
2204 2628
2205END { cf::emergency_save } 2629END { cf::emergency_save }
2206 2630

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