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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.212 by root, Tue Feb 13 19:25:44 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 $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
55our %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
56 78
57binmode STDOUT; 79binmode STDOUT;
58binmode STDERR; 80binmode STDERR;
59 81
60# read virtual server time, if available 82# read virtual server time, if available
67mkdir cf::localdir; 89mkdir cf::localdir;
68mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
69mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
70mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
71mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
72 95
73# a special map that is always available
74our $LINK_MAP;
75our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
97
98sub cf::map::normalise;
76 99
77############################################################################# 100#############################################################################
78 101
79=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
80 103
104 127
105=item %cf::CFG 128=item %cf::CFG
106 129
107Configuration for the server, loaded from C</etc/crossfire/config>, or 130Configuration for the server, loaded from C</etc/crossfire/config>, or
108from 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.
109 139
110=back 140=back
111 141
112=cut 142=cut
113 143
117 utf8::encode $msg; 147 utf8::encode $msg;
118 148
119 $msg .= "\n" 149 $msg .= "\n"
120 unless $msg =~ /\n$/; 150 unless $msg =~ /\n$/;
121 151
122 LOG llevError, "cfperl: $msg"; 152 LOG llevError, $msg;
123 }; 153 };
124} 154}
125 155
126@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
145 175
146$Event::DIED = sub { 176$Event::DIED = sub {
147 warn "error in event callback: @_"; 177 warn "error in event callback: @_";
148}; 178};
149 179
150my %ext_pkg;
151my @exts;
152my @hook;
153
154=head2 UTILITY FUNCTIONS 180=head2 UTILITY FUNCTIONS
155 181
156=over 4 182=over 4
157 183
184=item dumpval $ref
185
158=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}
159 206
160use JSON::Syck (); # TODO# replace by JSON::PC once working 207use JSON::Syck (); # TODO# replace by JSON::PC once working
161 208
162=item $ref = cf::from_json $json 209=item $ref = cf::from_json $json
163 210
179sub to_json($) { 226sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 228 JSON::Syck::Dump $_[0]
182} 229}
183 230
184=item my $guard = cf::guard { BLOCK }
185
186Run the given callback when the guard object gets destroyed (useful for
187coroutine cancellations).
188
189You can call C<< ->cancel >> on the guard object to stop the block from
190being executed.
191
192=cut
193
194sub guard(&) {
195 bless \(my $cb = $_[0]), cf::guard::;
196}
197
198sub cf::guard::cancel {
199 ${$_[0]} = sub { };
200}
201
202sub cf::guard::DESTROY {
203 ${$_[0]}->();
204}
205
206=item cf::lock_wait $string 231=item cf::lock_wait $string
207 232
208Wait until the given lock is available. See cf::lock_acquire. 233Wait until the given lock is available. See cf::lock_acquire.
209 234
210=item my $lock = cf::lock_acquire $string 235=item my $lock = cf::lock_acquire $string
211 236
212Wait 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
213a 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,
214for example when the coroutine gets canceled), the lock is automatically 239for example when the coroutine gets canceled), the lock is automatically
215returned. 240returned.
216 241
217Lock names should begin with a unique identifier (for example, cf::map::find 242Lock names should begin with a unique identifier (for example, cf::map::find
218uses map_find and cf::map::load uses map_load). 243uses map_find and cf::map::load uses map_load).
237 # wait, to be sure we are not locked 262 # wait, to be sure we are not locked
238 lock_wait $key; 263 lock_wait $key;
239 264
240 $LOCK{$key} = []; 265 $LOCK{$key} = [];
241 266
242 cf::guard { 267 Coro::guard {
243 # wake up all waiters, to be on the safe side 268 # wake up all waiters, to be on the safe side
244 $_->ready for @{ delete $LOCK{$key} }; 269 $_->ready for @{ delete $LOCK{$key} };
245 } 270 }
246} 271}
247 272
248=item cf::async { BLOCK }
249
250Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251error instead of exiting the server in case of a problem.
252
253=cut
254
255sub async(&) {
256 my ($cb) = @_;
257
258 Coro::async {
259 eval { $cb->() };
260 warn $@ if $@;
261 }
262}
263
264sub freeze_mainloop { 273sub freeze_mainloop {
265 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
266 275
267 my $guard = guard { $TICK_WATCHER->start }; 276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 $WRITE_RUNTIME_WATCHER->start;
279 };
280 $WRITE_RUNTIME_WATCHER->stop;
268 $TICK_WATCHER->stop; 281 $TICK_WATCHER->stop;
269 $guard 282 $guard
270} 283}
284
285=item cf::async { BLOCK }
286
287Currently the same as Coro::async_pool, meaning you cannot use
288C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
289thing you are allowed to do is call C<prio> on it.
290
291=cut
292
293BEGIN { *async = \&Coro::async_pool }
271 294
272=item cf::sync_job { BLOCK } 295=item cf::sync_job { BLOCK }
273 296
274The design of crossfire+ requires that the main coro ($Coro::main) is 297The design of crossfire+ requires that the main coro ($Coro::main) is
275always able to handle events or runnable, as crossfire+ is only partly 298always able to handle events or runnable, as crossfire+ is only partly
294 my $freeze_guard = freeze_mainloop; 317 my $freeze_guard = freeze_mainloop;
295 318
296 my $busy = 1; 319 my $busy = 1;
297 my @res; 320 my @res;
298 321
299 (Coro::async { 322 (async {
300 @res = eval { $job->() }; 323 @res = eval { $job->() };
301 warn $@ if $@; 324 warn $@ if $@;
302 undef $busy; 325 undef $busy;
303 })->prio (Coro::PRIO_MAX); 326 })->prio (Coro::PRIO_MAX);
304 327
305 while ($busy) { 328 while ($busy) {
306 Coro::cede_notself; 329 Coro::cede or Event::one_event;
307 Event::one_event unless Coro::nready;
308 } 330 }
309 331
310 wantarray ? @res : $res[0] 332 wantarray ? @res : $res[0]
311 } else { 333 } else {
312 # we are in another coroutine, how wonderful, everything just works 334 # we are in another coroutine, how wonderful, everything just works
313 335
314 $job->() 336 $job->()
315 } 337 }
316} 338}
317 339
318=item $coro = cf::coro { BLOCK } 340=item $coro = cf::async_ext { BLOCK }
319 341
320Creates and returns a new coro. This coro is automcatially being canceled 342Like async, but this coro is automatically being canceled when the
321when the extension calling this is being unloaded. 343extension calling this is being unloaded.
322 344
323=cut 345=cut
324 346
325sub coro(&) { 347sub async_ext(&) {
326 my $cb = shift; 348 my $cb = shift;
327 349
328 my $coro = &cf::async ($cb); 350 my $coro = &Coro::async ($cb);
329 351
330 $coro->on_destroy (sub { 352 $coro->on_destroy (sub {
331 delete $EXT_CORO{$coro+0}; 353 delete $EXT_CORO{$coro+0};
332 }); 354 });
333 $EXT_CORO{$coro+0} = $coro; 355 $EXT_CORO{$coro+0} = $coro;
339 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
340 362
341 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342 or return; 364 or return;
343 365
366 my $value = $cf::RUNTIME + 90 + 10;
344 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
345 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
346 and return; 371 and return;
347 372
373 # always fsync - this file is important
348 aio_fsync $fh 374 aio_fsync $fh
349 and return; 375 and return;
350 376
351 close $fh 377 close $fh
352 or return; 378 or return;
358} 384}
359 385
360=back 386=back
361 387
362=cut 388=cut
363
364#############################################################################
365
366package cf::path;
367
368sub new {
369 my ($class, $path, $base) = @_;
370
371 $path = $path->as_string if ref $path;
372
373 my $self = bless { }, $class;
374
375 # {... are special paths that are not touched
376 # ?xxx/... are special absolute paths
377 # ?random/... random maps
378 # /! non-realised random map exit
379 # /... normal maps
380 # ~/... per-player maps without a specific player (DO NOT USE)
381 # ~user/... per-player map of a specific user
382
383 if ($path =~ /^{/) {
384 # fine as it is
385 } elsif ($path =~ s{^\?random/}{}) {
386 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387 $self->{random} = cf::from_json $data;
388 } else {
389 if ($path =~ s{^~([^/]+)?}{}) {
390 $self->{user_rel} = 1;
391
392 if (defined $1) {
393 $self->{user} = $1;
394 } elsif ($base =~ m{^~([^/]+)/}) {
395 $self->{user} = $1;
396 } else {
397 warn "cannot resolve user-relative path without user <$path,$base>\n";
398 }
399 } elsif ($path =~ /^\//) {
400 # already absolute
401 } else {
402 $base =~ s{[^/]+/?$}{};
403 return $class->new ("$base/$path");
404 }
405
406 for ($path) {
407 redo if s{/\.?/}{/};
408 redo if s{/[^/]+/\.\./}{/};
409 }
410 }
411
412 $self->{path} = $path;
413
414 $self
415}
416
417# the name / primary key / in-game path
418sub as_string {
419 my ($self) = @_;
420
421 $self->{user_rel} ? "~$self->{user}$self->{path}"
422 : $self->{random} ? "?random/$self->{path}"
423 : $self->{path}
424}
425
426# the displayed name, this is a one way mapping
427sub visible_name {
428 my ($self) = @_;
429
430# if (my $rmp = $self->{random}) {
431# # todo: be more intelligent about this
432# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433# } else {
434 $self->as_string
435# }
436}
437
438# escape the /'s in the path
439sub _escaped_path {
440 # ∕ is U+2215
441 (my $path = $_[0]{path}) =~ s/\//∕/g;
442 $path
443}
444
445# the original (read-only) location
446sub load_path {
447 my ($self) = @_;
448
449 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450}
451
452# the temporary/swap location
453sub save_path {
454 my ($self) = @_;
455
456 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459}
460
461# the unique path, might be eq to save_path
462sub uniq_path {
463 my ($self) = @_;
464
465 $self->{user_rel} || $self->{random}
466 ? undef
467 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468}
469
470# return random map parameters, or undef
471sub random_map_params {
472 my ($self) = @_;
473
474 $self->{random}
475}
476
477# this is somewhat ugly, but style maps do need special treatment
478sub is_style_map {
479 $_[0]{path} =~ m{^/styles/}
480}
481
482package cf;
483 389
484############################################################################# 390#############################################################################
485 391
486=head2 ATTACHABLE OBJECTS 392=head2 ATTACHABLE OBJECTS
487 393
613our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
614our @CB_MAP = (); 520our @CB_MAP = ();
615 521
616my %attachment; 522my %attachment;
617 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
618sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
619 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
620 532
621 use sort 'stable'; 533 use sort 'stable';
622 534
793# object support 705# object support
794 706
795sub reattach { 707sub reattach {
796 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
797 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798 712
799 my $registry = $obj->registry; 713 my $registry = $obj->registry;
800 714
801 @$registry = (); 715 @$registry = ();
802 716
849 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
850 764
851 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
853 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
855 close $fh; 769 close $fh;
856 770
857 if (@$objs) { 771 if (@$objs) {
858 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) {
859 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
860 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
861 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
862 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
863 close $fh; 777 close $fh;
864 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
865 } 779 }
866 } else { 780 } else {
867 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
873 } 787 }
874 } else { 788 } else {
875 aio_unlink $filename; 789 aio_unlink $filename;
876 aio_unlink "$filename.pst"; 790 aio_unlink "$filename.pst";
877 } 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 }
878 } 798 }
879} 799}
880 800
881sub object_freezer_as_string { 801sub object_freezer_as_string {
882 my ($rdata, $objs) = @_; 802 my ($rdata, $objs) = @_;
888 808
889sub object_thawer_load { 809sub object_thawer_load {
890 my ($filename) = @_; 810 my ($filename) = @_;
891 811
892 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$//;
893 816
894 (aio_load $filename, $data) >= 0 817 (aio_load $filename, $data) >= 0
895 or return; 818 or return;
896 819
897 unless (aio_stat "$filename.pst") { 820 unless (aio_stat "$filename.pst") {
934=cut 857=cut
935 858
936sub register_extcmd { 859sub register_extcmd {
937 my ($name, $cb) = @_; 860 my ($name, $cb) = @_;
938 861
939 my $caller = caller;
940 #warn "registering extcmd '$name' to '$caller'";
941
942 $EXTCMD{$name} = [$cb, $caller]; 862 $EXTCMD{$name} = $cb;
943} 863}
944 864
945cf::player->attach ( 865cf::player->attach (
946 on_command => sub { 866 on_command => sub {
947 my ($pl, $name, $params) = @_; 867 my ($pl, $name, $params) = @_;
960 880
961 my $msg = eval { from_json $buf }; 881 my $msg = eval { from_json $buf };
962 882
963 if (ref $msg) { 883 if (ref $msg) {
964 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 884 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965 if (my %reply = $cb->[0]->($pl, $msg)) { 885 if (my %reply = $cb->($pl, $msg)) {
966 $pl->ext_reply ($msg->{msgid}, %reply); 886 $pl->ext_reply ($msg->{msgid}, %reply);
967 } 887 }
968 } 888 }
969 } else { 889 } else {
970 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 890 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
972 892
973 cf::override; 893 cf::override;
974 }, 894 },
975); 895);
976 896
977sub register {
978 my ($base, $pkg) = @_;
979
980 #TODO
981}
982
983sub load_extension { 897sub load_extension {
984 my ($path) = @_; 898 my ($path) = @_;
985 899
986 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 900 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
987 my $base = $1; 901 my $base = $1;
988 my $pkg = $1; 902 my $pkg = $1;
989 $pkg =~ s/[^[:word:]]/_/g; 903 $pkg =~ s/[^[:word:]]/_/g;
990 $pkg = "ext::$pkg"; 904 $pkg = "ext::$pkg";
991 905
992 warn "loading '$path' into '$pkg'\n"; 906 warn "... loading '$path' into '$pkg'\n";
993 907
994 open my $fh, "<:utf8", $path 908 open my $fh, "<:utf8", $path
995 or die "$path: $!"; 909 or die "$path: $!";
996 910
997 my $source = 911 my $source =
998 "package $pkg; use strict; use utf8;\n" 912 "package $pkg; use strict; use utf8;\n"
999 . "#line 1 \"$path\"\n{\n" 913 . "#line 1 \"$path\"\n{\n"
1000 . (do { local $/; <$fh> }) 914 . (do { local $/; <$fh> })
1001 . "\n};\n1"; 915 . "\n};\n1";
1002 916
1003 eval $source 917 unless (eval $source) {
1004 or die $@ ? "$path: $@\n" 918 my $msg = $@ ? "$path: $@\n"
1005 : "extension disabled.\n"; 919 : "extension disabled.\n";
1006 920 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007 push @exts, $pkg; 921 warn $@;
1008 $ext_pkg{$base} = $pkg; 922 warn "mandatory extension failed to load, exiting.\n";
1009 923 exit 1;
1010# no strict 'refs'; 924 }
1011# @{"$pkg\::ISA"} = ext::; 925 die $@;
1012
1013 register $base, $pkg;
1014}
1015
1016sub unload_extension {
1017 my ($pkg) = @_;
1018
1019 warn "removing extension $pkg\n";
1020
1021 # remove hooks
1022 #TODO
1023# for my $idx (0 .. $#PLUGIN_EVENT) {
1024# delete $hook[$idx]{$pkg};
1025# } 926 }
1026 927
1027 # remove commands 928 push @EXTS, $pkg;
1028 for my $name (keys %COMMAND) {
1029 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031 if (@cb) {
1032 $COMMAND{$name} = \@cb;
1033 } else {
1034 delete $COMMAND{$name};
1035 }
1036 }
1037
1038 # remove extcmds
1039 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040 delete $EXTCMD{$name};
1041 }
1042
1043 if (my $cb = $pkg->can ("unload")) {
1044 eval {
1045 $cb->($pkg);
1046 1
1047 } or warn "$pkg unloaded, but with errors: $@";
1048 }
1049
1050 Symbol::delete_package $pkg;
1051} 929}
1052 930
1053sub load_extensions { 931sub load_extensions {
1054 for my $ext (<$LIBDIR/*.ext>) { 932 for my $ext (<$LIBDIR/*.ext>) {
1055 next unless -r $ext; 933 next unless -r $ext;
1059 } or warn "$ext not loaded: $@"; 937 } or warn "$ext not loaded: $@";
1060 } 938 }
1061} 939}
1062 940
1063############################################################################# 941#############################################################################
1064# load/save/clean perl data associated with a map
1065
1066*cf::mapsupport::on_clean = sub {
1067 my ($map) = @_;
1068
1069 my $path = $map->tmpname;
1070 defined $path or return;
1071
1072 unlink "$path.pst";
1073};
1074
1075cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077#############################################################################
1078# load/save perl data associated with player->ob objects
1079
1080sub all_objects(@) {
1081 @_, map all_objects ($_->inv), @_
1082}
1083
1084# TODO: compatibility cruft, remove when no longer needed
1085cf::player->attach (
1086 on_load => sub {
1087 my ($pl, $path) = @_;
1088
1089 for my $o (all_objects $pl->ob) {
1090 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091 $o->set_ob_key_value ("_perl_data");
1092
1093 %$o = %{ Storable::thaw pack "H*", $value };
1094 }
1095 }
1096 },
1097);
1098
1099#############################################################################
1100 942
1101=head2 CORE EXTENSIONS 943=head2 CORE EXTENSIONS
1102 944
1103Functions and methods that extend core crossfire objects. 945Functions and methods that extend core crossfire objects.
1104 946
947=cut
948
949package cf::player;
950
951use Coro::AIO;
952
1105=head3 cf::player 953=head3 cf::player
1106 954
1107=over 4 955=over 4
1108 956
1109=item cf::player::exists $login 957=item cf::player::find $login
1110 958
1111Returns true when the given account exists. 959Returns the given player object, loading it if necessary (might block).
1112 960
1113=cut 961=cut
1114 962
1115sub cf::player::exists($) { 963sub playerdir($) {
1116 cf::player::find $_[0] 964 cf::localdir
1117 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
1118} 1111}
1119 1112
1120=item $player->ext_reply ($msgid, $msgtype, %msg) 1113=item $player->ext_reply ($msgid, $msgtype, %msg)
1121 1114
1122Sends an ext reply to the player. 1115Sends an ext reply to the player.
1123 1116
1124=cut 1117=cut
1125 1118
1126sub cf::player::ext_reply($$$%) { 1119sub ext_reply($$$%) {
1127 my ($self, $id, %msg) = @_; 1120 my ($self, $id, %msg) = @_;
1128 1121
1129 $msg{msgid} = $id; 1122 $msg{msgid} = $id;
1130 1123
1131 $self->send ("ext " . to_json \%msg); 1124 $self->send ("ext " . cf::to_json \%msg);
1132} 1125}
1126
1127package cf;
1133 1128
1134=back 1129=back
1135 1130
1136 1131
1137=head3 cf::map 1132=head3 cf::map
1143package cf::map; 1138package cf::map;
1144 1139
1145use Fcntl; 1140use Fcntl;
1146use Coro::AIO; 1141use Coro::AIO;
1147 1142
1143use overload
1144 '""' => \&as_string,
1145 fallback => 1;
1146
1148our $MAX_RESET = 3600; 1147our $MAX_RESET = 3600;
1149our $DEFAULT_RESET = 3000; 1148our $DEFAULT_RESET = 3000;
1150 1149
1151sub generate_random_map { 1150sub generate_random_map {
1152 my ($path, $rmp) = @_; 1151 my ($self, $rmp) = @_;
1153
1154 # mit "rum" bekleckern, nicht 1152 # mit "rum" bekleckern, nicht
1155 cf::map::_create_random_map 1153 $self->_create_random_map (
1156 $path,
1157 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1154 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1155 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1156 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160 $rmp->{exit_on_final_map}, 1157 $rmp->{exit_on_final_map},
1161 $rmp->{xsize}, $rmp->{ysize}, 1158 $rmp->{xsize}, $rmp->{ysize},
1162 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1159 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1160 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1161 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165 $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},
1166 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1163 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167 (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
1168} 1295}
1169 1296
1170# and all this just because we cannot iterate over 1297# and all this just because we cannot iterate over
1171# all maps in C++... 1298# all maps in C++...
1172sub change_all_map_light { 1299sub change_all_map_light {
1174 1301
1175 $_->change_map_light ($change) 1302 $_->change_map_light ($change)
1176 for grep $_->outdoor, values %cf::MAP; 1303 for grep $_->outdoor, values %cf::MAP;
1177} 1304}
1178 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
1179sub try_load_header($) { 1319sub load_header_from($) {
1180 my ($path) = @_; 1320 my ($self, $path) = @_;
1181 1321
1182 utf8::encode $path; 1322 utf8::encode $path;
1183 aio_open $path, O_RDONLY, 0 1323 #aio_open $path, O_RDONLY, 0
1324 # or return;
1325
1326 $self->_load_header ($path)
1184 or return; 1327 or return;
1185 1328
1186 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
1187 or return; 1372 or return;
1373 $self->prepare_orig;
1374 }
1188 1375
1189 $map->load_header ($path) 1376 1
1190 or return;
1191
1192 $map->{load_path} = $path;
1193
1194 $map
1195} 1377}
1196 1378
1197sub find; 1379sub find;
1198sub find { 1380sub find {
1199 my ($path, $origin) = @_; 1381 my ($path, $origin) = @_;
1200 1382
1201 #warn "find<$path,$origin>\n";#d#
1202
1203 $path = new cf::path $path, $origin && $origin->path; 1383 $path = normalise $path, $origin && $origin->path;
1204 my $key = $path->as_string;
1205 1384
1206 cf::lock_wait "map_find:$key"; 1385 cf::lock_wait "map_find:$path";
1207 1386
1208 $cf::MAP{$key} || do { 1387 $cf::MAP{$path} || do {
1209 my $guard = cf::lock_acquire "map_find:$key"; 1388 my $guard = cf::lock_acquire "map_find:$path";
1210 1389 my $map = new_from_path cf::map $path
1211 # do it the slow way
1212 my $map = try_load_header $path->save_path;
1213
1214 if ($map) {
1215 $map->last_access ((delete $map->{last_access})
1216 || $cf::RUNTIME); #d#
1217 # safety
1218 $map->{instantiate_time} = $cf::RUNTIME
1219 if $map->{instantiate_time} > $cf::RUNTIME;
1220 } else {
1221 if (my $rmp = $path->random_map_params) {
1222 $map = generate_random_map $key, $rmp;
1223 } else {
1224 $map = try_load_header $path->load_path;
1225 }
1226
1227 $map or return; 1390 or return;
1228 1391
1229 $map->{load_original} = 1;
1230 $map->{instantiate_time} = $cf::RUNTIME;
1231 $map->last_access ($cf::RUNTIME);
1232 $map->instantiate;
1233
1234 # per-player maps become, after loading, normal maps
1235 $map->per_player (0) if $path->{user_rel};
1236 }
1237
1238 $map->path ($key);
1239 $map->{path} = $path;
1240 $map->{last_save} = $cf::RUNTIME; 1392 $map->{last_save} = $cf::RUNTIME;
1241 1393
1242 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;
1243 $map->reset; 1400 $map->reset;
1244 undef $guard; 1401 undef $guard;
1245 $map = find $path 1402 return find $path;
1246 or return;
1247 } 1403 }
1248 1404
1249 $cf::MAP{$key} = $map 1405 $cf::MAP{$path} = $map
1250 } 1406 }
1251} 1407}
1408
1409sub pre_load { }
1410sub post_load { }
1252 1411
1253sub load { 1412sub load {
1254 my ($self) = @_; 1413 my ($self) = @_;
1255 1414
1415 local $self->{deny_reset} = 1; # loading can take a long time
1416
1256 my $path = $self->{path}; 1417 my $path = $self->{path};
1257 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1418 my $guard = cf::lock_acquire "map_load:$path";
1258 1419
1259 return if $self->in_memory != cf::MAP_SWAPPED; 1420 return if $self->in_memory != cf::MAP_SWAPPED;
1260 1421
1261 $self->in_memory (cf::MAP_LOADING); 1422 $self->in_memory (cf::MAP_LOADING);
1262 1423
1263 $self->alloc; 1424 $self->alloc;
1425
1426 $self->pre_load;
1427
1264 $self->load_objects ($self->{load_path}, 1) 1428 $self->_load_objects ($self->{load_path}, 1)
1265 or return; 1429 or return;
1266 1430
1267 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268 if delete $self->{load_original}; 1432 if delete $self->{load_original};
1269 1433
1270 if (my $uniq = $path->uniq_path) { 1434 if (my $uniq = $self->uniq_path) {
1271 utf8::encode $uniq; 1435 utf8::encode $uniq;
1272 if (aio_open $uniq, O_RDONLY, 0) { 1436 if (aio_open $uniq, O_RDONLY, 0) {
1273 $self->clear_unique_items; 1437 $self->clear_unique_items;
1274 $self->load_objects ($uniq, 0); 1438 $self->_load_objects ($uniq, 0);
1275 } 1439 }
1276 } 1440 }
1441
1442 Coro::cede;
1277 1443
1278 # now do the right thing for maps 1444 # now do the right thing for maps
1279 $self->link_multipart_objects; 1445 $self->link_multipart_objects;
1280 1446
1281 if ($self->{path}->is_style_map) { 1447 unless ($self->{deny_activate}) {
1282 $self->{deny_save} = 1; 1448 $self->decay_objects;
1283 $self->{deny_reset} = 1;
1284 } else {
1285 $self->fix_auto_apply; 1449 $self->fix_auto_apply;
1286 $self->decay_objects;
1287 $self->update_buttons; 1450 $self->update_buttons;
1451 Coro::cede;
1288 $self->set_darkness_map; 1452 $self->set_darkness_map;
1289 $self->difficulty ($self->estimate_difficulty) 1453 $self->difficulty ($self->estimate_difficulty)
1290 unless $self->difficulty; 1454 unless $self->difficulty;
1455 Coro::cede;
1291 $self->activate; 1456 $self->activate;
1292 } 1457 }
1293 1458
1459 $self->post_load;
1460
1294 $self->in_memory (cf::MAP_IN_MEMORY); 1461 $self->in_memory (cf::MAP_IN_MEMORY);
1462}
1463
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 }
1295} 1495}
1296 1496
1297sub find_sync { 1497sub find_sync {
1298 my ($path, $origin) = @_; 1498 my ($path, $origin) = @_;
1299 1499
1300 cf::sync_job { cf::map::find $path, $origin } 1500 cf::sync_job { find $path, $origin }
1301} 1501}
1302 1502
1303sub do_load_sync { 1503sub do_load_sync {
1304 my ($map) = @_; 1504 my ($map) = @_;
1305 1505
1306 cf::sync_job { $map->load }; 1506 cf::sync_job { $map->load };
1307} 1507}
1308 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;
1527 $map->load;
1528
1529 delete $MAP_PREFETCH{$path};
1530 }
1531 }
1532 undef $MAP_PREFETCHER;
1533 };
1534 $MAP_PREFETCHER->prio (6);
1535
1536 ()
1537}
1538
1309sub save { 1539sub save {
1310 my ($self) = @_; 1540 my ($self) = @_;
1311 1541
1542 my $lock = cf::lock_acquire "map_data:" . $self->path;
1543
1312 $self->{last_save} = $cf::RUNTIME; 1544 $self->{last_save} = $cf::RUNTIME;
1313 1545
1314 return unless $self->dirty; 1546 return unless $self->dirty;
1315 1547
1316 my $save = $self->{path}->save_path; utf8::encode $save; 1548 my $save = $self->save_path; utf8::encode $save;
1317 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1549 my $uniq = $self->uniq_path; utf8::encode $uniq;
1318 1550
1319 $self->{load_path} = $save; 1551 $self->{load_path} = $save;
1320 1552
1321 return if $self->{deny_save}; 1553 return if $self->{deny_save};
1322 1554
1323 local $self->{last_access} = $self->last_access;#d# 1555 local $self->{last_access} = $self->last_access;#d#
1324 1556
1557 cf::async {
1558 $_->contr->save for $self->players;
1559 };
1560
1325 if ($uniq) { 1561 if ($uniq) {
1326 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1562 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327 $self->save_objects ($uniq, cf::IO_UNIQUES); 1563 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1328 } else { 1564 } else {
1329 $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);
1330 } 1566 }
1331} 1567}
1332 1568
1333sub swap_out { 1569sub swap_out {
1334 my ($self) = @_; 1570 my ($self) = @_;
1335 1571
1336 # save first because save cedes 1572 # save first because save cedes
1337 $self->save; 1573 $self->save;
1574
1575 my $lock = cf::lock_acquire "map_data:" . $self->path;
1338 1576
1339 return if $self->players; 1577 return if $self->players;
1340 return if $self->in_memory != cf::MAP_IN_MEMORY; 1578 return if $self->in_memory != cf::MAP_IN_MEMORY;
1341 return if $self->{deny_save}; 1579 return if $self->{deny_save};
1342 1580
1346 1584
1347sub reset_at { 1585sub reset_at {
1348 my ($self) = @_; 1586 my ($self) = @_;
1349 1587
1350 # TODO: safety, remove and allow resettable per-player maps 1588 # TODO: safety, remove and allow resettable per-player maps
1351 return 1e99 if $self->{path}{user_rel}; 1589 return 1e99 if $self->isa ("ext::map_per_player");#d#
1352 return 1e99 if $self->{deny_reset}; 1590 return 1e99 if $self->{deny_reset};
1353 1591
1354 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1592 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355 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;
1356 1594
1361 my ($self) = @_; 1599 my ($self) = @_;
1362 1600
1363 $self->reset_at <= $cf::RUNTIME 1601 $self->reset_at <= $cf::RUNTIME
1364} 1602}
1365 1603
1366sub unlink_save {
1367 my ($self) = @_;
1368
1369 utf8::encode (my $save = $self->{path}->save_path);
1370 aioreq_pri 3; IO::AIO::aio_unlink $save;
1371 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372}
1373
1374sub rename {
1375 my ($self, $new_path) = @_;
1376
1377 $self->unlink_save;
1378
1379 delete $cf::MAP{$self->path};
1380 $self->{path} = new cf::path $new_path;
1381 $self->path ($self->{path}->as_string);
1382 $cf::MAP{$self->path} = $self;
1383
1384 $self->save;
1385}
1386
1387sub reset { 1604sub reset {
1388 my ($self) = @_; 1605 my ($self) = @_;
1389 1606
1607 my $lock = cf::lock_acquire "map_data:$self->{path}";
1608
1390 return if $self->players; 1609 return if $self->players;
1391 return if $self->{path}{user_rel};#d# 1610 return if $self->isa ("ext::map_per_player");#d#
1392 1611
1393 warn "resetting map ", $self->path;#d# 1612 warn "resetting map ", $self->path;#d#
1394 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
1395 delete $cf::MAP{$self->path}; 1624 delete $cf::MAP{$self->path};
1625
1626 $self->clear;
1396 1627
1397 $_->clear_links_to ($self) for values %cf::MAP; 1628 $_->clear_links_to ($self) for values %cf::MAP;
1398 1629
1399 $self->unlink_save; 1630 $self->unlink_save;
1400 $self->destroy; 1631 $self->destroy;
1403my $nuke_counter = "aaaa"; 1634my $nuke_counter = "aaaa";
1404 1635
1405sub nuke { 1636sub nuke {
1406 my ($self) = @_; 1637 my ($self) = @_;
1407 1638
1639 delete $cf::MAP{$self->path};
1640
1641 $self->unlink_save;
1642
1643 bless $self, "cf::map";
1644 delete $self->{deny_reset};
1408 $self->{deny_save} = 1; 1645 $self->{deny_save} = 1;
1409 $self->reset_timeout (1); 1646 $self->reset_timeout (1);
1410 $self->rename ("{nuke}/" . ($nuke_counter++)); 1647 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648
1649 $cf::MAP{$self->path} = $self;
1650
1411 $self->reset; # polite request, might not happen 1651 $self->reset; # polite request, might not happen
1412} 1652}
1413 1653
1414sub customise_for { 1654=item cf::map::unique_maps
1415 my ($map, $ob) = @_;
1416 1655
1417 if ($map->per_player) { 1656Returns an arrayref of paths of all shared maps that have
1418 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path}; 1657instantiated unique items. May block.
1419 }
1420 1658
1421 $map 1659=cut
1422}
1423 1660
1424sub emergency_save { 1661sub unique_maps() {
1425 my $freeze_guard = cf::freeze_mainloop; 1662 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1663 or return;
1426 1664
1427 warn "enter emergency map save\n"; 1665 my @paths;
1428 1666
1429 cf::sync_job { 1667 for (@$files) {
1430 warn "begin emergency map save\n"; 1668 utf8::decode $_;
1431 $_->save for values %cf::MAP; 1669 next if /\.pst$/;
1670 next unless /^$PATH_SEP/o;
1671
1672 push @paths, cf::map::normalise $_;
1432 }; 1673 }
1433 1674
1434 warn "end emergency map save\n"; 1675 \@paths
1435} 1676}
1436 1677
1437package cf; 1678package cf;
1438 1679
1439=back 1680=back
1440 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
1441 1708
1442=head3 cf::object::player 1709=head3 cf::object::player
1443 1710
1444=over 4 1711=over 4
1445 1712
1485 1752
1486=item $player_object->enter_link 1753=item $player_object->enter_link
1487 1754
1488Freezes 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}>).
1489 1756
1490The 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
1491I<MUST> call C<leave_link> as soon as possible, though. 1758I<MUST> call C<leave_link> as soon as possible, though.
1492 1759
1760Will never block.
1761
1493=item $player_object->leave_link ($map, $x, $y) 1762=item $player_object->leave_link ($map, $x, $y)
1494 1763
1495Moves 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
1496map 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
1497location 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
1498to the emergency map position. 1767fails, to the emergency map position.
1499 1768
1500Might block. 1769Might block.
1501 1770
1502=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}
1503 1782
1504sub cf::object::player::enter_link { 1783sub cf::object::player::enter_link {
1505 my ($self) = @_; 1784 my ($self) = @_;
1506 1785
1507 $self->deactivate_recursive; 1786 $self->deactivate_recursive;
1508 1787
1509 return if $self->map == $LINK_MAP; 1788 return if UNIVERSAL::isa $self->map, "ext::map_link";
1510 1789
1511 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1790 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512 if $self->map; 1791 if $self->map;
1513 1792
1514 $self->enter_map ($LINK_MAP, 20, 20); 1793 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1515} 1794}
1516 1795
1517sub cf::object::player::leave_link { 1796sub cf::object::player::leave_link {
1518 my ($self, $map, $x, $y) = @_; 1797 my ($self, $map, $x, $y) = @_;
1519 1798
1537 # use -1 or undef as default coordinates, not 0, 0 1816 # use -1 or undef as default coordinates, not 0, 0
1538 ($x, $y) = ($map->enter_x, $map->enter_y) 1817 ($x, $y) = ($map->enter_x, $map->enter_y)
1539 if $x <=0 && $y <= 0; 1818 if $x <=0 && $y <= 0;
1540 1819
1541 $map->load; 1820 $map->load;
1821 $map->load_diag;
1542 1822
1823 return unless $self->contr->active;
1543 $self->activate_recursive; 1824 $self->activate_recursive;
1544 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1545} 1826}
1546 1827
1547cf::player->attach ( 1828cf::player->attach (
1560 1841
1561 # try to abort aborted map switching on player login :) 1842 # try to abort aborted map switching on player login :)
1562 # should happen only on crashes 1843 # should happen only on crashes
1563 if ($pl->ob->{_link_pos}) { 1844 if ($pl->ob->{_link_pos}) {
1564 $pl->ob->enter_link; 1845 $pl->ob->enter_link;
1565 cf::async { 1846 (async {
1566 # 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
1567 # 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);
1568 Coro::Timer::sleep 1; 1853 Coro::Timer::sleep 1;
1569 $pl->ob->leave_link; 1854 $pl->ob->leave_link;
1570 }; 1855 })->prio (2);
1571 } 1856 }
1572 }, 1857 },
1573); 1858);
1574 1859
1575=item $player_object->goto_map ($path, $x, $y) 1860=item $player_object->goto ($path, $x, $y)
1576 1861
1577=cut 1862=cut
1578 1863
1579sub cf::object::player::goto_map { 1864sub cf::object::player::goto {
1580 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1581 1866
1582 $self->enter_link; 1867 $self->enter_link;
1583 1868
1584 (cf::async { 1869 (async {
1585 $path = new cf::path $path; 1870 my $map = eval {
1586
1587 my $map = cf::map::find $path->as_string; 1871 my $map = cf::map::find $path;
1588 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1589 1873 $map
1590# warn "entering ", $map->path, " at ($x, $y)\n" 1874 } or
1591# if $map;
1592
1593 $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);
1594 1876
1595 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1596 })->prio (1); 1878 })->prio (1);
1597} 1879}
1598 1880
1602 1884
1603sub parse_random_map_params { 1885sub parse_random_map_params {
1604 my ($spec) = @_; 1886 my ($spec) = @_;
1605 1887
1606 my $rmp = { # defaults 1888 my $rmp = { # defaults
1607 xsize => 10, 1889 xsize => (cf::rndm 15, 40),
1608 ysize => 10, 1890 ysize => (cf::rndm 15, 40),
1891 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1892 #layout => string,
1609 }; 1893 };
1610 1894
1611 for (split /\n/, $spec) { 1895 for (split /\n/, $spec) {
1612 my ($k, $v) = split /\s+/, $_, 2; 1896 my ($k, $v) = split /\s+/, $_, 2;
1613 1897
1617 $rmp 1901 $rmp
1618} 1902}
1619 1903
1620sub prepare_random_map { 1904sub prepare_random_map {
1621 my ($exit) = @_; 1905 my ($exit) = @_;
1906
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1622 1908
1623 # all this does is basically replace the /! path by 1909 # all this does is basically replace the /! path by
1624 # a new random map path (?random/...) with a seed 1910 # a new random map path (?random/...) with a seed
1625 # that depends on the exit object 1911 # that depends on the exit object
1626 1912
1627 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1628 1914
1629 if ($exit->map) { 1915 if ($exit->map) {
1630 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1631 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1632 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1633 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1634 } 1920 }
1635 1921
1636 $rmp->{random_seed} ||= $exit->random_seed; 1922 $rmp->{random_seed} ||= $exit->random_seed;
1637 1923
1638 my $data = cf::to_json $rmp; 1924 my $data = cf::to_json $rmp;
1639 my $md5 = Digest::MD5::md5_hex $data; 1925 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1640 1927
1641 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) {
1642 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;
1643 1932
1644 $exit->slaying ("?random/$md5"); 1933 $exit->slaying ("?random/$md5");
1645 $exit->msg (undef); 1934 $exit->msg (undef);
1646 } 1935 }
1647} 1936}
1649sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1650 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1651 1940
1652 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1653 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
1654 $self->enter_link; 1952 $self->enter_link;
1655 1953
1656 (cf::async { 1954 (async {
1657 $self->deactivate_recursive; # just to be sure 1955 $self->deactivate_recursive; # just to be sure
1658 unless (eval { 1956 unless (eval {
1659 prepare_random_map $exit 1957 $self->goto ($slaying, $hp, $sp);
1660 if $exit->slaying eq "/!";
1661
1662 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664 1958
1665 1; 1959 1;
1666 }) { 1960 }) {
1667 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1668 . "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. "
1669 . "Please report this to the dungeon master", 1963 . "Please report this to the dungeon master!",
1670 cf::NDI_UNIQUE | cf::NDI_RED); 1964 cf::NDI_UNIQUE | cf::NDI_RED);
1671 1965
1672 warn "ERROR in enter_exit: $@"; 1966 warn "ERROR in enter_exit: $@";
1673 $self->leave_link; 1967 $self->leave_link;
1674 } 1968 }
1729 # get handled first 2023 # get handled first
1730 my $queue = delete $ns->{query_queue} 2024 my $queue = delete $ns->{query_queue}
1731 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
1732 2026
1733 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734 2029
1735 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1736 2031
1737 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1738 if (@$queue) { 2033 if (@$queue) {
1742 } 2037 }
1743 } 2038 }
1744 }, 2039 },
1745); 2040);
1746 2041
1747=item $client->coro (\&cb) 2042=item $client->async (\&cb)
1748 2043
1749Create a new coroutine, running the specified callback. The coroutine will 2044Create a new coroutine, running the specified callback. The coroutine will
1750be automatically cancelled when the client gets destroyed (e.g. on logout, 2045be automatically cancelled when the client gets destroyed (e.g. on logout,
1751or loss of connection). 2046or loss of connection).
1752 2047
1753=cut 2048=cut
1754 2049
1755sub cf::client::coro { 2050sub cf::client::async {
1756 my ($self, $cb) = @_; 2051 my ($self, $cb) = @_;
1757 2052
1758 my $coro = &cf::async ($cb); 2053 my $coro = &Coro::async ($cb);
1759 2054
1760 $coro->on_destroy (sub { 2055 $coro->on_destroy (sub {
1761 delete $self->{_coro}{$coro+0}; 2056 delete $self->{_coro}{$coro+0};
1762 }); 2057 });
1763 2058
1899The 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
1900using it, it should be unique. 2195using it, it should be unique.
1901 2196
1902=over 4 2197=over 4
1903 2198
1904=item $hashref = cf::db_get $family
1905
1906Return a hashref for use by the extension C<$family>, which can be
1907modified. After modifications, you have to call C<cf::db_dirty> or
1908C<cf::db_sync>.
1909
1910=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
1911 2200
1912Returns a single value from the database 2201Returns a single value from the database.
1913
1914=item cf::db_put $family => $hashref
1915
1916Stores the given family hashref into the database. Updates are delayed, if
1917you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918 2202
1919=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
1920 2204
1921Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
1922want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924=item cf::db_dirty
1925
1926Marks the database as dirty, to be updated at a later time.
1927
1928=item cf::db_sync
1929
1930Immediately write the database to disk I<if it is dirty>.
1931 2206
1932=cut 2207=cut
1933 2208
1934our $DB; 2209our $DB;
1935 2210
1936{ 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
1937 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;
1938 2230
1939 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
1940 $DB = stat $path ? Storable::retrieve $path : { }; 2232 cf::db_put (guildrules => data => $pst->{guildrules});
1941 } 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
1942 2235
1943 my $pid; 2236 unlink $path;
1944
1945 sub db_save() {
1946 waitpid $pid, 0 if $pid;
1947 if (0 == ($pid = fork)) {
1948 $DB->{_meta}{version} = 1;
1949 Storable::nstore $DB, "$path~";
1950 rename "$path~", $path;
1951 cf::_exit 0 if defined $pid;
1952 } 2237 };
1953 }
1954
1955 my $dirty;
1956
1957 sub db_sync() {
1958 db_save if $dirty;
1959 undef $dirty;
1960 }
1961
1962 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963 db_sync;
1964 });
1965
1966 sub db_dirty() {
1967 $dirty = 1;
1968 $idle->start;
1969 }
1970
1971 sub db_get($;$) {
1972 @_ >= 2
1973 ? $DB->{$_[0]}{$_[1]}
1974 : ($DB->{$_[0]} ||= { })
1975 }
1976
1977 sub db_put($$;$) {
1978 if (@_ >= 3) {
1979 $DB->{$_[0]}{$_[1]} = $_[2];
1980 } else {
1981 $DB->{$_[0]} = $_[1];
1982 }
1983 db_dirty;
1984 }
1985
1986 cf::global->attach (
1987 prio => 10000,
1988 on_cleanup => sub {
1989 db_sync;
1990 }, 2238 }
1991 ); 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 { };
1992} 2256}
1993 2257
1994############################################################################# 2258#############################################################################
1995# 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}
1996 2265
1997sub cfg_load { 2266sub cfg_load {
1998 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
1999 or return; 2268 or return;
2000 2269
2001 local $/; 2270 local $/;
2002 *CFG = YAML::Syck::Load <$fh>; 2271 *CFG = YAML::Syck::Load <$fh>;
2003 2272
2004 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 2273 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005 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
2006 if (exists $CFG{mlockall}) { 2278 if (exists $CFG{mlockall}) {
2007 eval { 2279 eval {
2008 $CFG{mlockall} ? &mlockall : &munlockall 2280 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009 and die "WARNING: m(un)lockall failed: $!\n"; 2281 and die "WARNING: m(un)lockall failed: $!\n";
2010 }; 2282 };
2011 warn $@ if $@; 2283 warn $@ if $@;
2012 } 2284 }
2285}
2286
2287sub init {
2288 load_resources;
2013} 2289}
2014 2290
2015sub main { 2291sub main {
2016 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
2017 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
2018 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#
2019 (Coro::unblock_sub { 2295 (async {
2020 Event::one_event; 2296 Event::one_event;
2021 })->(); 2297 })->prio (Coro::PRIO_MAX);
2022 }; 2298 };
2023 2299
2024 cfg_load; 2300 cfg_load;
2025 db_load; 2301 db_init;
2026 load_extensions; 2302 load_extensions;
2303
2304 $TICK_WATCHER->start;
2027 Event::loop; 2305 Event::loop;
2028} 2306}
2029 2307
2030############################################################################# 2308#############################################################################
2031# initialisation 2309# initialisation and cleanup
2310
2311# install some emergency cleanup handlers
2312BEGIN {
2313 for my $signal (qw(INT HUP TERM)) {
2314 Event->signal (
2315 reentrant => 0,
2316 data => WF_AUTOCANCEL,
2317 signal => $signal,
2318 prio => 0,
2319 cb => sub {
2320 cf::cleanup "SIG$signal";
2321 },
2322 );
2323 }
2324}
2325
2326sub emergency_save() {
2327 my $freeze_guard = cf::freeze_mainloop;
2328
2329 warn "enter emergency perl save\n";
2330
2331 cf::sync_job {
2332 # use a peculiar iteration method to avoid tripping on perl
2333 # refcount bugs in for. also avoids problems with players
2334 # and maps saved/destroyed asynchronously.
2335 warn "begin emergency player save\n";
2336 for my $login (keys %cf::PLAYER) {
2337 my $pl = $cf::PLAYER{$login} or next;
2338 $pl->valid or next;
2339 $pl->save;
2340 }
2341 warn "end emergency player save\n";
2342
2343 warn "begin emergency map save\n";
2344 for my $path (keys %cf::MAP) {
2345 my $map = $cf::MAP{$path} or next;
2346 $map->valid or next;
2347 $map->save;
2348 }
2349 warn "end emergency map save\n";
2350
2351 warn "begin emergency database checkpoint\n";
2352 BDB::db_env_txn_checkpoint $DB_ENV;
2353 warn "end emergency database checkpoint\n";
2354 };
2355
2356 warn "leave emergency perl save\n";
2357}
2358
2359sub post_cleanup {
2360 my ($make_core) = @_;
2361
2362 warn Carp::longmess "post_cleanup backtrace"
2363 if $make_core;
2364}
2032 2365
2033sub reload() { 2366sub reload() {
2034 # can/must only be called in main 2367 # can/must only be called in main
2035 if ($Coro::current != $Coro::main) { 2368 if ($Coro::current != $Coro::main) {
2036 warn "can only reload from main coroutine\n"; 2369 warn "can only reload from main coroutine";
2037 return; 2370 return;
2038 } 2371 }
2039 2372
2040 warn "reloading..."; 2373 warn "reloading...";
2041 2374
2042 my $guard = freeze_mainloop; 2375 warn "entering sync_job";
2376
2377 sync_job {
2378 write_runtime;
2043 cf::emergency_save; 2379 cf::emergency_save;
2380 write_runtime;
2044 2381
2045 eval { 2382 warn "syncing database to disk";
2383 BDB::db_env_txn_checkpoint $DB_ENV;
2384
2046 # if anything goes wrong in here, we should simply crash as we already saved 2385 # if anything goes wrong in here, we should simply crash as we already saved
2047 2386
2048 # cancel all watchers 2387 warn "cancelling all WF_AUTOCANCEL watchers";
2049 for (Event::all_watchers) { 2388 for (Event::all_watchers) {
2050 $_->cancel if $_->data & WF_AUTOCANCEL; 2389 $_->cancel if $_->data & WF_AUTOCANCEL;
2051 } 2390 }
2052 2391
2392 warn "flushing outstanding aio requests";
2393 for (;;) {
2394 BDB::flush;
2395 IO::AIO::flush;
2396 Coro::cede;
2397 last unless IO::AIO::nreqs || BDB::nreqs;
2398 warn "iterate...";
2399 }
2400
2053 # cancel all extension coros 2401 warn "cancelling all extension coros";
2054 $_->cancel for values %EXT_CORO; 2402 $_->cancel for values %EXT_CORO;
2055 %EXT_CORO = (); 2403 %EXT_CORO = ();
2056 2404
2057 # unload all extensions 2405 warn "removing commands";
2058 for (@exts) { 2406 %COMMAND = ();
2407
2408 warn "removing ext commands";
2409 %EXTCMD = ();
2410
2411 warn "unloading/nuking all extensions";
2412 for my $pkg (@EXTS) {
2059 warn "unloading <$_>"; 2413 warn "... unloading $pkg";
2060 unload_extension $_; 2414
2415 if (my $cb = $pkg->can ("unload")) {
2416 eval {
2417 $cb->($pkg);
2418 1
2419 } or warn "$pkg unloaded, but with errors: $@";
2061 } 2420 }
2062 2421
2422 warn "... nuking $pkg";
2423 Symbol::delete_package $pkg;
2424 }
2425
2063 # unload all modules loaded from $LIBDIR 2426 warn "unloading all perl modules loaded from $LIBDIR";
2064 while (my ($k, $v) = each %INC) { 2427 while (my ($k, $v) = each %INC) {
2065 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2428 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066 2429
2067 warn "removing <$k>"; 2430 warn "... unloading $k";
2068 delete $INC{$k}; 2431 delete $INC{$k};
2069 2432
2070 $k =~ s/\.pm$//; 2433 $k =~ s/\.pm$//;
2071 $k =~ s/\//::/g; 2434 $k =~ s/\//::/g;
2072 2435
2075 } 2438 }
2076 2439
2077 Symbol::delete_package $k; 2440 Symbol::delete_package $k;
2078 } 2441 }
2079 2442
2080 # sync database to disk
2081 cf::db_sync;
2082 IO::AIO::flush;
2083
2084 # get rid of safe::, as good as possible 2443 warn "getting rid of safe::, as good as possible";
2085 Symbol::delete_package "safe::$_" 2444 Symbol::delete_package "safe::$_"
2086 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2445 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087 2446
2088 # remove register_script_function callbacks
2089 # TODO
2090
2091 # unload cf.pm "a bit" 2447 warn "unloading cf.pm \"a bit\"";
2092 delete $INC{"cf.pm"}; 2448 delete $INC{"cf.pm"};
2093 2449
2094 # don't, removes xs symbols, too, 2450 # don't, removes xs symbols, too,
2095 # and global variables created in xs 2451 # and global variables created in xs
2096 #Symbol::delete_package __PACKAGE__; 2452 #Symbol::delete_package __PACKAGE__;
2097 2453
2098 # reload cf.pm 2454 warn "unload completed, starting to reload now";
2455
2099 warn "reloading cf.pm"; 2456 warn "reloading cf.pm";
2100 require cf; 2457 require cf;
2101 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2458 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102 2459
2103 # load config and database again 2460 warn "loading config and database again";
2104 cf::cfg_load; 2461 cf::cfg_load;
2105 cf::db_load;
2106 2462
2107 # load extensions
2108 warn "load extensions"; 2463 warn "loading extensions";
2109 cf::load_extensions; 2464 cf::load_extensions;
2110 2465
2111 # reattach attachments to objects 2466 warn "reattaching attachments to objects/players";
2112 warn "reattach";
2113 _global_reattach; 2467 _global_reattach;
2114 }; 2468 warn "reattaching attachments to maps";
2469 reattach $_ for values %MAP;
2115 2470
2116 if ($@) { 2471 warn "loading reloadable resources";
2472 load_resources;
2473
2474 warn "leaving sync_job";
2475
2476 1
2477 } or do {
2117 warn $@; 2478 warn $@;
2118 warn "error while reloading, exiting."; 2479 warn "error while reloading, exiting.";
2119 exit 1; 2480 exit 1;
2120 } 2481 };
2121 2482
2122 warn "reloaded successfully"; 2483 warn "reloaded";
2123}; 2484};
2124 2485
2125############################################################################# 2486our $RELOAD_WATCHER; # used only during reload
2126
2127unless ($LINK_MAP) {
2128 $LINK_MAP = cf::map::new;
2129
2130 $LINK_MAP->width (41);
2131 $LINK_MAP->height (41);
2132 $LINK_MAP->alloc;
2133 $LINK_MAP->path ("{link}");
2134 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137 # dirty hack because... archetypes are not yet loaded
2138 Event->timer (
2139 after => 2,
2140 cb => sub {
2141 $_[0]->w->cancel;
2142
2143 # provide some exits "home"
2144 my $exit = cf::object::new "exit";
2145
2146 $exit->slaying ($EMERGENCY_POSITION->[0]);
2147 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150 $LINK_MAP->insert ($exit->clone, 19, 19);
2151 $LINK_MAP->insert ($exit->clone, 19, 20);
2152 $LINK_MAP->insert ($exit->clone, 19, 21);
2153 $LINK_MAP->insert ($exit->clone, 20, 19);
2154 $LINK_MAP->insert ($exit->clone, 20, 21);
2155 $LINK_MAP->insert ($exit->clone, 21, 19);
2156 $LINK_MAP->insert ($exit->clone, 21, 20);
2157 $LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159 $exit->destroy;
2160 });
2161
2162 $LINK_MAP->{deny_save} = 1;
2163 $LINK_MAP->{deny_reset} = 1;
2164
2165 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166}
2167
2168register "<global>", __PACKAGE__;
2169 2487
2170register_command "reload" => sub { 2488register_command "reload" => sub {
2171 my ($who, $arg) = @_; 2489 my ($who, $arg) = @_;
2172 2490
2173 if ($who->flag (FLAG_WIZ)) { 2491 if ($who->flag (FLAG_WIZ)) {
2174 $who->message ("start of reload."); 2492 $who->message ("reloading server.");
2493
2494 # doing reload synchronously and two reloads happen back-to-back,
2495 # coro crashes during coro_state_free->destroy here.
2496
2497 $RELOAD_WATCHER ||= Event->timer (
2498 reentrant => 0,
2499 after => 0,
2500 data => WF_AUTOCANCEL,
2501 cb => sub {
2175 reload; 2502 reload;
2176 $who->message ("end of reload."); 2503 undef $RELOAD_WATCHER;
2504 },
2505 );
2177 } 2506 }
2178}; 2507};
2179 2508
2180unshift @INC, $LIBDIR; 2509unshift @INC, $LIBDIR;
2510
2511my $bug_warning = 0;
2181 2512
2182$TICK_WATCHER = Event->timer ( 2513$TICK_WATCHER = Event->timer (
2183 reentrant => 0, 2514 reentrant => 0,
2515 parked => 1,
2184 prio => 0, 2516 prio => 0,
2185 at => $NEXT_TICK || $TICK, 2517 at => $NEXT_TICK || $TICK,
2186 data => WF_AUTOCANCEL, 2518 data => WF_AUTOCANCEL,
2187 cb => sub { 2519 cb => sub {
2520 if ($Coro::current != $Coro::main) {
2521 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2522 unless ++$bug_warning > 10;
2523 return;
2524 }
2525
2526 $NOW = Event::time;
2527
2188 cf::server_tick; # one server iteration 2528 cf::server_tick; # one server iteration
2189 $RUNTIME += $TICK; 2529 $RUNTIME += $TICK;
2190 $NEXT_TICK += $TICK; 2530 $NEXT_TICK += $TICK;
2531
2532 $WAIT_FOR_TICK->broadcast;
2533 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2534
2535# my $AFTER = Event::time;
2536# warn $AFTER - $NOW;#d#
2191 2537
2192 # if we are delayed by four ticks or more, skip them all 2538 # if we are delayed by four ticks or more, skip them all
2193 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2539 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194 2540
2195 $TICK_WATCHER->at ($NEXT_TICK); 2541 $TICK_WATCHER->at ($NEXT_TICK);
2196 $TICK_WATCHER->start; 2542 $TICK_WATCHER->start;
2197 }, 2543 },
2198); 2544);
2199 2545
2546{
2547 BDB::max_poll_time $TICK * 0.1;
2548 $BDB_POLL_WATCHER = Event->io (
2549 reentrant => 0,
2550 fd => BDB::poll_fileno,
2551 poll => 'r',
2552 prio => 0,
2553 data => WF_AUTOCANCEL,
2554 cb => \&BDB::poll_cb,
2555 );
2556 BDB::min_parallel 8;
2557
2558 BDB::set_sync_prepare {
2559 my $status;
2560 my $current = $Coro::current;
2561 (
2562 sub {
2563 $status = $!;
2564 $current->ready; undef $current;
2565 },
2566 sub {
2567 Coro::schedule while defined $current;
2568 $! = $status;
2569 },
2570 )
2571 };
2572
2573 unless ($DB_ENV) {
2574 $DB_ENV = BDB::db_env_create;
2575
2576 cf::sync_job {
2577 eval {
2578 BDB::db_env_open
2579 $DB_ENV,
2580 $BDB_ENV_DIR,
2581 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2582 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2583 0666;
2584
2585 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2586
2587 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2588 $DB_ENV->set_lk_detect;
2589 };
2590
2591 cf::cleanup "db_env_open(db): $@" if $@;
2592 };
2593 }
2594}
2595
2596{
2597 IO::AIO::min_parallel 8;
2598
2599 undef $Coro::AIO::WATCHER;
2200IO::AIO::max_poll_time $TICK * 0.2; 2600 IO::AIO::max_poll_time $TICK * 0.1;
2201 2601 $AIO_POLL_WATCHER = Event->io (
2202Event->io ( 2602 reentrant => 0,
2203 fd => IO::AIO::poll_fileno, 2603 fd => IO::AIO::poll_fileno,
2204 poll => 'r', 2604 poll => 'r',
2205 prio => 5, 2605 prio => 6,
2206 data => WF_AUTOCANCEL, 2606 data => WF_AUTOCANCEL,
2207 cb => \&IO::AIO::poll_cb, 2607 cb => \&IO::AIO::poll_cb,
2208); 2608 );
2609}
2209 2610
2210Event->timer ( 2611$WRITE_RUNTIME_WATCHER = Event->timer (
2612 reentrant => 0,
2211 data => WF_AUTOCANCEL, 2613 data => WF_AUTOCANCEL,
2614 parked => 1,
2212 after => 0, 2615 after => 1,
2213 interval => 10, 2616 interval => 10,
2617 prio => 6, # keep it lowest so it acts like a watchdog
2214 cb => sub { 2618 cb => sub {
2215 (Coro::unblock_sub { 2619 $TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
2620
2621 Coro::async_pool {
2216 write_runtime 2622 write_runtime
2217 or warn "ERROR: unable to write runtime file: $!"; 2623 or warn "ERROR: unable to write runtime file: $!";
2218 })->(); 2624 };
2219 }, 2625 },
2220); 2626);
2221 2627
2222END { cf::emergency_save } 2628END { cf::emergency_save }
2223 2629

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