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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.127 by root, Wed Jan 3 00:05:26 2007 UTC vs.
Revision 1.218 by root, Sat Feb 17 01:58:55 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
21use Data::Dumper;
20use Digest::MD5; 22use Digest::MD5;
21use Fcntl; 23use Fcntl;
22use IO::AIO 2.31 (); 24use IO::AIO 2.32 ();
23use YAML::Syck (); 25use YAML::Syck ();
24use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25 30
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27 34
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 36$YAML::Syck::ImplicitUnicode = 1;
30 37
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 39
35our %COMMAND = (); 40our %COMMAND = ();
36our %COMMAND_TIME = (); 41our %COMMAND_TIME = ();
42
43our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 44our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps
38 47
39our @EVENT; 48our @EVENT;
40our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
41 50
42our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 52our $TICK_WATCHER;
53our $AIO_POLL_WATCHER;
54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 55our $NEXT_TICK;
45our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
46 61
47our %CFG; 62our %CFG;
48 63
49our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 65our $RUNTIME;
51 66
67our %PLAYER; # all users
52our %MAP; # all maps 68our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 69our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75
76# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57 78
58binmode STDOUT; 79binmode STDOUT;
59binmode STDERR; 80binmode STDERR;
60 81
61# read virtual server time, if available 82# read virtual server time, if available
68mkdir cf::localdir; 89mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
73 95
74# a special map that is always available 96our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 97
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 98sub cf::map::normalise;
78 99
79############################################################################# 100#############################################################################
80 101
81=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
82 103
106 127
107=item %cf::CFG 128=item %cf::CFG
108 129
109Configuration for the server, loaded from C</etc/crossfire/config>, or 130Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 131from wherever your confdir points to.
132
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
134
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
137processing has been done. Call C<< ->wait >> on them to maximise the
138window of cpu time available, or simply to synchronise to the server tick.
111 139
112=back 140=back
113 141
114=cut 142=cut
115 143
119 utf8::encode $msg; 147 utf8::encode $msg;
120 148
121 $msg .= "\n" 149 $msg .= "\n"
122 unless $msg =~ /\n$/; 150 unless $msg =~ /\n$/;
123 151
124 LOG llevError, "cfperl: $msg"; 152 LOG llevError, $msg;
125 }; 153 };
126} 154}
127 155
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 175
148$Event::DIED = sub { 176$Event::DIED = sub {
149 warn "error in event callback: @_"; 177 warn "error in event callback: @_";
150}; 178};
151 179
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 180=head2 UTILITY FUNCTIONS
157 181
158=over 4 182=over 4
159 183
184=item dumpval $ref
185
160=cut 186=cut
187
188sub dumpval {
189 eval {
190 local $SIG{__DIE__};
191 my $d;
192 if (1) {
193 $d = new Data::Dumper([$_[0]], ["*var"]);
194 $d->Terse(1);
195 $d->Indent(2);
196 $d->Quotekeys(0);
197 $d->Useqq(1);
198 #$d->Bless(...);
199 $d->Seen($_[1]) if @_ > 1;
200 $d = $d->Dump();
201 }
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d
204 } || "[unable to dump $_[0]: '$@']";
205}
161 206
162use JSON::Syck (); # TODO# replace by JSON::PC once working 207use JSON::Syck (); # TODO# replace by JSON::PC once working
163 208
164=item $ref = cf::from_json $json 209=item $ref = cf::from_json $json
165 210
181sub to_json($) { 226sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 228 JSON::Syck::Dump $_[0]
184} 229}
185 230
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string 231=item cf::lock_wait $string
209 232
210Wait until the given lock is available. See cf::lock_acquire. 233Wait until the given lock is available. See cf::lock_acquire.
211 234
212=item my $lock = cf::lock_acquire $string 235=item my $lock = cf::lock_acquire $string
213 236
214Wait until the given lock is available and then acquires it and returns 237Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope, 238a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically 239for example when the coroutine gets canceled), the lock is automatically
217returned. 240returned.
218 241
219Lock names should begin with a unique identifier (for example, find_map 242Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 243uses map_find and cf::map::load uses map_load).
221 244
222=cut 245=cut
223 246
224our %LOCK; 247our %LOCK;
225 248
239 # wait, to be sure we are not locked 262 # wait, to be sure we are not locked
240 lock_wait $key; 263 lock_wait $key;
241 264
242 $LOCK{$key} = []; 265 $LOCK{$key} = [];
243 266
244 cf::guard { 267 Coro::guard {
245 # wake up all waiters, to be on the safe side 268 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 269 $_->ready for @{ delete $LOCK{$key} };
247 } 270 }
248} 271}
249 272
273sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active;
275
276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 };
279 $TICK_WATCHER->stop;
280 $guard
281}
282
250=item cf::async { BLOCK } 283=item cf::async { BLOCK }
251 284
252Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the 285Currently the same as Coro::async_pool, meaning you cannot use
253error instead of exiting the server in case of a problem. 286C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287thing you are allowed to do is call C<prio> on it.
254 288
255=cut 289=cut
256 290
257sub async(&) { 291BEGIN { *async = \&Coro::async_pool }
258 my ($cb) = @_;
259
260 Coro::async {
261 eval { $cb->() };
262 warn $@ if $@;
263 }
264}
265 292
266=item cf::sync_job { BLOCK } 293=item cf::sync_job { BLOCK }
267 294
268The design of crossfire+ requires that the main coro ($Coro::main) is 295The design of crossfire+ requires that the main coro ($Coro::main) is
269always able to handle events or runnable, as crossfire+ is only partly 296always able to handle events or runnable, as crossfire+ is only partly
283 # this is the main coro, too bad, we have to block 310 # this is the main coro, too bad, we have to block
284 # till the operation succeeds, freezing the server :/ 311 # till the operation succeeds, freezing the server :/
285 312
286 # TODO: use suspend/resume instead 313 # TODO: use suspend/resume instead
287 # (but this is cancel-safe) 314 # (but this is cancel-safe)
288 local $FREEZE = 1; 315 my $freeze_guard = freeze_mainloop;
289 316
290 my $busy = 1; 317 my $busy = 1;
291 my @res; 318 my @res;
292 319
293 (Coro::async { 320 (async {
294 @res = eval { $job->() }; 321 @res = eval { $job->() };
295 warn $@ if $@; 322 warn $@ if $@;
296 undef $busy; 323 undef $busy;
297 })->prio (Coro::PRIO_MAX); 324 })->prio (Coro::PRIO_MAX);
298 325
299 while ($busy) { 326 while ($busy) {
300 Coro::cede_notself; 327 Coro::cede or Event::one_event;
301 Event::one_event unless Coro::nready;
302 } 328 }
303 329
304 wantarray ? @res : $res[0] 330 wantarray ? @res : $res[0]
305 } else { 331 } else {
306 # we are in another coroutine, how wonderful, everything just works 332 # we are in another coroutine, how wonderful, everything just works
307 333
308 $job->() 334 $job->()
309 } 335 }
310} 336}
311 337
312=item $coro = cf::coro { BLOCK } 338=item $coro = cf::async_ext { BLOCK }
313 339
314Creates and returns a new coro. This coro is automcatially being canceled 340Like async, but this coro is automatically being canceled when the
315when the extension calling this is being unloaded. 341extension calling this is being unloaded.
316 342
317=cut 343=cut
318 344
319sub coro(&) { 345sub async_ext(&) {
320 my $cb = shift; 346 my $cb = shift;
321 347
322 my $coro = &cf::async ($cb); 348 my $coro = &Coro::async ($cb);
323 349
324 $coro->on_destroy (sub { 350 $coro->on_destroy (sub {
325 delete $EXT_CORO{$coro+0}; 351 delete $EXT_CORO{$coro+0};
326 }); 352 });
327 $EXT_CORO{$coro+0} = $coro; 353 $EXT_CORO{$coro+0} = $coro;
333 my $runtime = cf::localdir . "/runtime"; 359 my $runtime = cf::localdir . "/runtime";
334 360
335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 361 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336 or return; 362 or return;
337 363
364 my $value = $cf::RUNTIME + 90 + 10;
338 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 365 # 10 is the runtime save interval, for a monotonic clock
366 # 60 allows for the watchdog to kill the server.
367
339 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
340 and return; 369 and return;
341 370
371 # always fsync - this file is important
342 aio_fsync $fh 372 aio_fsync $fh
343 and return; 373 and return;
344 374
345 close $fh 375 close $fh
346 or return; 376 or return;
352} 382}
353 383
354=back 384=back
355 385
356=cut 386=cut
357
358#############################################################################
359
360package cf::path;
361
362sub new {
363 my ($class, $path, $base) = @_;
364
365 $path = $path->as_string if ref $path;
366
367 my $self = bless { }, $class;
368
369 # {... are special paths that are not touched
370 # ?xxx/... are special absolute paths
371 # ?random/... random maps
372 # /! non-realised random map exit
373 # /... normal maps
374 # ~/... per-player maps without a specific player (DO NOT USE)
375 # ~user/... per-player map of a specific user
376
377 if ($path =~ /^{/) {
378 # fine as it is
379 } elsif ($path =~ s{^\?random/}{}) {
380 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381 $self->{random} = cf::from_json $data;
382 } else {
383 if ($path =~ s{^~([^/]+)?}{}) {
384 $self->{user_rel} = 1;
385
386 if (defined $1) {
387 $self->{user} = $1;
388 } elsif ($base =~ m{^~([^/]+)/}) {
389 $self->{user} = $1;
390 } else {
391 warn "cannot resolve user-relative path without user <$path,$base>\n";
392 }
393 } elsif ($path =~ /^\//) {
394 # already absolute
395 } else {
396 $base =~ s{[^/]+/?$}{};
397 return $class->new ("$base/$path");
398 }
399
400 for ($path) {
401 redo if s{/\.?/}{/};
402 redo if s{/[^/]+/\.\./}{/};
403 }
404 }
405
406 $self->{path} = $path;
407
408 $self
409}
410
411# the name / primary key / in-game path
412sub as_string {
413 my ($self) = @_;
414
415 $self->{user_rel} ? "~$self->{user}$self->{path}"
416 : $self->{random} ? "?random/$self->{path}"
417 : $self->{path}
418}
419
420# the displayed name, this is a one way mapping
421sub visible_name {
422 my ($self) = @_;
423
424# if (my $rmp = $self->{random}) {
425# # todo: be more intelligent about this
426# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427# } else {
428 $self->as_string
429# }
430}
431
432# escape the /'s in the path
433sub _escaped_path {
434 # ∕ is U+2215
435 (my $path = $_[0]{path}) =~ s/\//∕/g;
436 $path
437}
438
439# the original (read-only) location
440sub load_path {
441 my ($self) = @_;
442
443 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444}
445
446# the temporary/swap location
447sub save_path {
448 my ($self) = @_;
449
450 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453}
454
455# the unique path, might be eq to save_path
456sub uniq_path {
457 my ($self) = @_;
458
459 $self->{user_rel} || $self->{random}
460 ? undef
461 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462}
463
464# return random map parameters, or undef
465sub random_map_params {
466 my ($self) = @_;
467
468 $self->{random}
469}
470
471# this is somewhat ugly, but style maps do need special treatment
472sub is_style_map {
473 $_[0]{path} =~ m{^/styles/}
474}
475
476package cf;
477 387
478############################################################################# 388#############################################################################
479 389
480=head2 ATTACHABLE OBJECTS 390=head2 ATTACHABLE OBJECTS
481 391
607our @CB_TYPE = (); # registry for type (cf-object class) based events 517our @CB_TYPE = (); # registry for type (cf-object class) based events
608our @CB_MAP = (); 518our @CB_MAP = ();
609 519
610my %attachment; 520my %attachment;
611 521
522sub cf::attachable::thawer_merge {
523 # simply override everything except _meta
524 local $_[0]{_meta};
525 %{$_[0]} = %{$_[1]};
526}
527
612sub _attach_cb($$$$) { 528sub _attach_cb($$$$) {
613 my ($registry, $event, $prio, $cb) = @_; 529 my ($registry, $event, $prio, $cb) = @_;
614 530
615 use sort 'stable'; 531 use sort 'stable';
616 532
787# object support 703# object support
788 704
789sub reattach { 705sub reattach {
790 # basically do the same as instantiate, without calling instantiate 706 # basically do the same as instantiate, without calling instantiate
791 my ($obj) = @_; 707 my ($obj) = @_;
708
709 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792 710
793 my $registry = $obj->registry; 711 my $registry = $obj->registry;
794 712
795 @$registry = (); 713 @$registry = ();
796 714
843 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
844 762
845 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
847 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
849 close $fh; 767 close $fh;
850 768
851 if (@$objs) { 769 if (@$objs) {
852 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
854 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
855 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
856 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
857 close $fh; 775 close $fh;
858 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
859 } 777 }
860 } else { 778 } else {
861 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
928=cut 846=cut
929 847
930sub register_extcmd { 848sub register_extcmd {
931 my ($name, $cb) = @_; 849 my ($name, $cb) = @_;
932 850
933 my $caller = caller;
934 #warn "registering extcmd '$name' to '$caller'";
935
936 $EXTCMD{$name} = [$cb, $caller]; 851 $EXTCMD{$name} = $cb;
937} 852}
938 853
939cf::player->attach ( 854cf::player->attach (
940 on_command => sub { 855 on_command => sub {
941 my ($pl, $name, $params) = @_; 856 my ($pl, $name, $params) = @_;
954 869
955 my $msg = eval { from_json $buf }; 870 my $msg = eval { from_json $buf };
956 871
957 if (ref $msg) { 872 if (ref $msg) {
958 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 873 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959 if (my %reply = $cb->[0]->($pl, $msg)) { 874 if (my %reply = $cb->($pl, $msg)) {
960 $pl->ext_reply ($msg->{msgid}, %reply); 875 $pl->ext_reply ($msg->{msgid}, %reply);
961 } 876 }
962 } 877 }
963 } else { 878 } else {
964 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 879 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
966 881
967 cf::override; 882 cf::override;
968 }, 883 },
969); 884);
970 885
971sub register {
972 my ($base, $pkg) = @_;
973
974 #TODO
975}
976
977sub load_extension { 886sub load_extension {
978 my ($path) = @_; 887 my ($path) = @_;
979 888
980 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 889 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
981 my $base = $1; 890 my $base = $1;
982 my $pkg = $1; 891 my $pkg = $1;
983 $pkg =~ s/[^[:word:]]/_/g; 892 $pkg =~ s/[^[:word:]]/_/g;
984 $pkg = "ext::$pkg"; 893 $pkg = "ext::$pkg";
985 894
986 warn "loading '$path' into '$pkg'\n"; 895 warn "... loading '$path' into '$pkg'\n";
987 896
988 open my $fh, "<:utf8", $path 897 open my $fh, "<:utf8", $path
989 or die "$path: $!"; 898 or die "$path: $!";
990 899
991 my $source = 900 my $source =
992 "package $pkg; use strict; use utf8;\n" 901 "package $pkg; use strict; use utf8;\n"
993 . "#line 1 \"$path\"\n{\n" 902 . "#line 1 \"$path\"\n{\n"
994 . (do { local $/; <$fh> }) 903 . (do { local $/; <$fh> })
995 . "\n};\n1"; 904 . "\n};\n1";
996 905
997 eval $source 906 unless (eval $source) {
998 or die $@ ? "$path: $@\n" 907 my $msg = $@ ? "$path: $@\n"
999 : "extension disabled.\n"; 908 : "extension disabled.\n";
1000 909 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001 push @exts, $pkg; 910 warn $@;
1002 $ext_pkg{$base} = $pkg; 911 warn "mandatory extension failed to load, exiting.\n";
1003 912 exit 1;
1004# no strict 'refs'; 913 }
1005# @{"$pkg\::ISA"} = ext::; 914 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# } 915 }
1020 916
1021 # remove commands 917 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} 918}
1046 919
1047sub load_extensions { 920sub load_extensions {
1048 for my $ext (<$LIBDIR/*.ext>) { 921 for my $ext (<$LIBDIR/*.ext>) {
1049 next unless -r $ext; 922 next unless -r $ext;
1053 } or warn "$ext not loaded: $@"; 926 } or warn "$ext not loaded: $@";
1054 } 927 }
1055} 928}
1056 929
1057############################################################################# 930#############################################################################
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 931
1095=head2 CORE EXTENSIONS 932=head2 CORE EXTENSIONS
1096 933
1097Functions and methods that extend core crossfire objects. 934Functions and methods that extend core crossfire objects.
1098 935
936=cut
937
938package cf::player;
939
940use Coro::AIO;
941
1099=head3 cf::player 942=head3 cf::player
1100 943
1101=over 4 944=over 4
1102 945
1103=item cf::player::exists $login 946=item cf::player::find $login
1104 947
1105Returns true when the given account exists. 948Returns the given player object, loading it if necessary (might block).
1106 949
1107=cut 950=cut
1108 951
1109sub cf::player::exists($) { 952sub playerdir($) {
1110 cf::player::find $_[0] 953 cf::localdir
1111 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 954 . "/"
955 . cf::playerdir
956 . "/"
957 . (ref $_[0] ? $_[0]->ob->name : $_[0])
958}
959
960sub path($) {
961 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962
963 (playerdir $login) . "/$login.pl"
964}
965
966sub find_active($) {
967 $cf::PLAYER{$_[0]}
968 and $cf::PLAYER{$_[0]}->active
969 and $cf::PLAYER{$_[0]}
970}
971
972sub exists($) {
973 my ($login) = @_;
974
975 $cf::PLAYER{$login}
976 or cf::sync_job { !aio_stat path $login }
977}
978
979sub find($) {
980 return $cf::PLAYER{$_[0]} || do {
981 my $login = $_[0];
982
983 my $guard = cf::lock_acquire "user_find:$login";
984
985 $cf::PLAYER{$_[0]} || do {
986 my $pl = load_pl path $login
987 or return;
988 $cf::PLAYER{$login} = $pl
989 }
990 }
991}
992
993sub save($) {
994 my ($pl) = @_;
995
996 return if $pl->{deny_save};
997
998 my $path = path $pl;
999 my $guard = cf::lock_acquire "user_save:$path";
1000
1001 return if $pl->{deny_save};
1002
1003 aio_mkdir playerdir $pl, 0770;
1004 $pl->{last_save} = $cf::RUNTIME;
1005
1006 $pl->save_pl ($path);
1007 Coro::cede;
1008}
1009
1010sub new($) {
1011 my ($login) = @_;
1012
1013 my $self = create;
1014
1015 $self->ob->name ($login);
1016 $self->{deny_save} = 1;
1017
1018 $cf::PLAYER{$login} = $self;
1019
1020 $self
1021}
1022
1023=item $pl->quit_character
1024
1025Nukes the player without looking back. If logged in, the connection will
1026be destroyed. May block for a long time.
1027
1028=cut
1029
1030sub quit_character {
1031 my ($pl) = @_;
1032
1033 $pl->{deny_save} = 1;
1034 $pl->password ("*"); # this should lock out the player until we nuked the dir
1035
1036 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037 $pl->deactivate;
1038 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1039 $pl->ns->destroy if $pl->ns;
1040
1041 my $path = playerdir $pl;
1042 my $temp = "$path~$cf::RUNTIME~deleting~";
1043 aio_rename $path, $temp;
1044 delete $cf::PLAYER{$pl->ob->name};
1045 $pl->destroy;
1046 IO::AIO::aio_rmtree $temp;
1047}
1048
1049=item cf::player::list_logins
1050
1051Returns am arrayref of all valid playernames in the system, can take a
1052while and may block, so not sync_job-capable, ever.
1053
1054=cut
1055
1056sub list_logins {
1057 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1058 or return [];
1059
1060 my @logins;
1061
1062 for my $login (@$dirs) {
1063 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1064 aio_read $fh, 0, 512, my $buf, 0 or next;
1065 $buf !~ /^password -------------$/m or next; # official not-valid tag
1066
1067 utf8::decode $login;
1068 push @logins, $login;
1069 }
1070
1071 \@logins
1072}
1073
1074=item $player->maps
1075
1076Returns an arrayref of map paths that are private for this
1077player. May block.
1078
1079=cut
1080
1081sub maps($) {
1082 my ($pl) = @_;
1083
1084 $pl = ref $pl ? $pl->ob->name : $pl;
1085
1086 my $files = aio_readdir playerdir $pl
1087 or return;
1088
1089 my @paths;
1090
1091 for (@$files) {
1092 utf8::decode $_;
1093 next if /\.(?:pl|pst)$/;
1094 next unless /^$PATH_SEP/o;
1095
1096 push @paths, cf::map::normalise "~$pl/$_";
1097 }
1098
1099 \@paths
1112} 1100}
1113 1101
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1102=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1103
1116Sends an ext reply to the player. 1104Sends an ext reply to the player.
1117 1105
1118=cut 1106=cut
1119 1107
1120sub cf::player::ext_reply($$$%) { 1108sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1109 my ($self, $id, %msg) = @_;
1122 1110
1123 $msg{msgid} = $id; 1111 $msg{msgid} = $id;
1124 1112
1125 $self->send ("ext " . to_json \%msg); 1113 $self->send ("ext " . cf::to_json \%msg);
1126} 1114}
1115
1116package cf;
1127 1117
1128=back 1118=back
1129 1119
1130 1120
1131=head3 cf::map 1121=head3 cf::map
1137package cf::map; 1127package cf::map;
1138 1128
1139use Fcntl; 1129use Fcntl;
1140use Coro::AIO; 1130use Coro::AIO;
1141 1131
1132use overload
1133 '""' => \&as_string,
1134 fallback => 1;
1135
1142our $MAX_RESET = 7200; 1136our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1137our $DEFAULT_RESET = 3000;
1144 1138
1145sub generate_random_map { 1139sub generate_random_map {
1146 my ($path, $rmp) = @_; 1140 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1141 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1142 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1143 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1144 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1145 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1146 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1147 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1148 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1149 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1150 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1151 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1152 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (cf::region::find $rmp->{region}) 1153 (cf::region::find $rmp->{region}), $rmp->{custom}
1154 )
1155}
1156
1157=item cf::map->register ($regex, $prio)
1158
1159Register a handler for the map path matching the given regex at the
1160givne priority (higher is better, built-in handlers have priority 0, the
1161default).
1162
1163=cut
1164
1165sub register {
1166 my (undef, $regex, $prio) = @_;
1167 my $pkg = caller;
1168
1169 no strict;
1170 push @{"$pkg\::ISA"}, __PACKAGE__;
1171
1172 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1173}
1174
1175# also paths starting with '/'
1176$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1177
1178sub thawer_merge {
1179 my ($self, $merge) = @_;
1180
1181 # we have to keep some variables in memory intact
1182 local $self->{path};
1183 local $self->{load_path};
1184 local $self->{deny_save};
1185 local $self->{deny_reset};
1186
1187 $self->SUPER::thawer_merge ($merge);
1188}
1189
1190sub normalise {
1191 my ($path, $base) = @_;
1192
1193 $path = "$path"; # make sure its a string
1194
1195 $path =~ s/\.map$//;
1196
1197 # map plan:
1198 #
1199 # /! non-realised random map exit (special hack!)
1200 # {... are special paths that are not being touched
1201 # ?xxx/... are special absolute paths
1202 # ?random/... random maps
1203 # /... normal maps
1204 # ~user/... per-player map of a specific user
1205
1206 $path =~ s/$PATH_SEP/\//go;
1207
1208 # treat it as relative path if it starts with
1209 # something that looks reasonable
1210 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1211 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1212
1213 $base =~ s{[^/]+/?$}{};
1214 $path = "$base/$path";
1215 }
1216
1217 for ($path) {
1218 redo if s{//}{/};
1219 redo if s{/\.?/}{/};
1220 redo if s{/[^/]+/\.\./}{/};
1221 }
1222
1223 $path
1224}
1225
1226sub new_from_path {
1227 my (undef, $path, $base) = @_;
1228
1229 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1230
1231 $path = normalise $path, $base;
1232
1233 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1234 if ($path =~ $EXT_MAP{$pkg}[1]) {
1235 my $self = bless cf::map::new, $pkg;
1236 $self->{path} = $path; $self->path ($path);
1237 $self->init; # pass $1 etc.
1238 return $self;
1239 }
1240 }
1241
1242 Carp::carp "unable to resolve path '$path' (base '$base').";
1243 ()
1244}
1245
1246sub init {
1247 my ($self) = @_;
1248
1249 $self
1250}
1251
1252sub as_string {
1253 my ($self) = @_;
1254
1255 "$self->{path}"
1256}
1257
1258# the displayed name, this is a one way mapping
1259sub visible_name {
1260 &as_string
1261}
1262
1263# the original (read-only) location
1264sub load_path {
1265 my ($self) = @_;
1266
1267 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1268}
1269
1270# the temporary/swap location
1271sub save_path {
1272 my ($self) = @_;
1273
1274 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1275 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1276}
1277
1278# the unique path, undef == no special unique path
1279sub uniq_path {
1280 my ($self) = @_;
1281
1282 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1162} 1284}
1163 1285
1164# and all this just because we cannot iterate over 1286# and all this just because we cannot iterate over
1165# all maps in C++... 1287# all maps in C++...
1166sub change_all_map_light { 1288sub change_all_map_light {
1168 1290
1169 $_->change_map_light ($change) 1291 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1292 for grep $_->outdoor, values %cf::MAP;
1171} 1293}
1172 1294
1295sub unlink_save {
1296 my ($self) = @_;
1297
1298 utf8::encode (my $save = $self->save_path);
1299 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301}
1302
1173sub try_load_header($) { 1303sub load_header_from($) {
1174 my ($path) = @_; 1304 my ($self, $path) = @_;
1175 1305
1176 utf8::encode $path; 1306 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1307 #aio_open $path, O_RDONLY, 0
1308 # or return;
1309
1310 $self->_load_header ($path)
1178 or return; 1311 or return;
1179 1312
1180 my $map = cf::map::new 1313 $self->{load_path} = $path;
1314
1315 1
1316}
1317
1318sub load_header_orig {
1319 my ($self) = @_;
1320
1321 $self->load_header_from ($self->load_path)
1322}
1323
1324sub load_header_temp {
1325 my ($self) = @_;
1326
1327 $self->load_header_from ($self->save_path)
1328}
1329
1330sub prepare_temp {
1331 my ($self) = @_;
1332
1333 $self->last_access ((delete $self->{last_access})
1334 || $cf::RUNTIME); #d#
1335 # safety
1336 $self->{instantiate_time} = $cf::RUNTIME
1337 if $self->{instantiate_time} > $cf::RUNTIME;
1338}
1339
1340sub prepare_orig {
1341 my ($self) = @_;
1342
1343 $self->{load_original} = 1;
1344 $self->{instantiate_time} = $cf::RUNTIME;
1345 $self->last_access ($cf::RUNTIME);
1346 $self->instantiate;
1347}
1348
1349sub load_header {
1350 my ($self) = @_;
1351
1352 if ($self->load_header_temp) {
1353 $self->prepare_temp;
1354 } else {
1355 $self->load_header_orig
1181 or return; 1356 or return;
1357 $self->prepare_orig;
1358 }
1182 1359
1183 $map->load_header ($path) 1360 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1361}
1190 1362
1191sub find_map; 1363sub find;
1192sub find_map { 1364sub find {
1193 my ($path, $origin) = @_; 1365 my ($path, $origin) = @_;
1194 1366
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1367 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1368
1200 cf::lock_wait "map_find:$key"; 1369 cf::lock_wait "map_find:$path";
1201 1370
1202 $cf::MAP{$key} || do { 1371 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1372 my $guard = cf::lock_acquire "map_find:$path";
1204 1373 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; 1374 or return;
1220 1375
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; 1376 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1377
1234 if ($map->should_reset) { 1378 $map->load_header
1379 or return;
1380
1381 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1382 # doing this can freeze the server in a sync job, obviously
1383 #$cf::WAIT_FOR_TICK->wait;
1235 $map->reset; 1384 $map->reset;
1236 undef $guard; 1385 undef $guard;
1237 $map = find_map $path 1386 return find $path;
1238 or return;
1239 } 1387 }
1240 1388
1241 $cf::MAP{$key} = $map 1389 $cf::MAP{$path} = $map
1242 } 1390 }
1243} 1391}
1392
1393sub pre_load { }
1394sub post_load { }
1244 1395
1245sub load { 1396sub load {
1246 my ($self) = @_; 1397 my ($self) = @_;
1247 1398
1399 local $self->{deny_reset} = 1; # loading can take a long time
1400
1248 my $path = $self->{path}; 1401 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1402 my $guard = cf::lock_acquire "map_load:$path";
1250 1403
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1404 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1405
1253 $self->in_memory (cf::MAP_LOADING); 1406 $self->in_memory (cf::MAP_LOADING);
1254 1407
1255 $self->alloc; 1408 $self->alloc;
1409
1410 $self->pre_load;
1411
1256 $self->load_objects ($self->{load_path}, 1) 1412 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1413 or return;
1258 1414
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1415 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1416 if delete $self->{load_original};
1261 1417
1262 if (my $uniq = $path->uniq_path) { 1418 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1419 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1420 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1421 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1422 $self->_load_objects ($uniq, 0);
1267 } 1423 }
1268 } 1424 }
1425
1426 Coro::cede;
1269 1427
1270 # now do the right thing for maps 1428 # now do the right thing for maps
1271 $self->link_multipart_objects; 1429 $self->link_multipart_objects;
1272 1430
1273 if ($self->{path}->is_style_map) { 1431 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1432 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1433 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1434 $self->update_buttons;
1435 Coro::cede;
1280 $self->set_darkness_map; 1436 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1437 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1438 unless $self->difficulty;
1439 Coro::cede;
1283 $self->activate; 1440 $self->activate;
1284 } 1441 }
1285 1442
1443 $self->post_load;
1444
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1445 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1446}
1288 1447
1289sub load_map_sync { 1448sub customise_for {
1449 my ($self, $ob) = @_;
1450
1451 return find "~" . $ob->name . "/" . $self->{path}
1452 if $self->per_player;
1453
1454 $self
1455}
1456
1457# find and load all maps in the 3x3 area around a map
1458sub load_diag {
1459 my ($map) = @_;
1460
1461 my @diag; # diagonal neighbours
1462
1463 for (0 .. 3) {
1464 my $neigh = $map->tile_path ($_)
1465 or next;
1466 $neigh = find $neigh, $map
1467 or next;
1468 $neigh->load;
1469
1470 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1471 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1472 }
1473
1474 for (@diag) {
1475 my $neigh = find @$_
1476 or next;
1477 $neigh->load;
1478 }
1479}
1480
1481sub find_sync {
1290 my ($path, $origin) = @_; 1482 my ($path, $origin) = @_;
1291 1483
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1484 cf::sync_job { find $path, $origin }
1485}
1293 1486
1294 cf::sync_job { 1487sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1488 my ($map) = @_;
1296 or return; 1489
1490 cf::sync_job { $map->load };
1491}
1492
1493our %MAP_PREFETCH;
1494our $MAP_PREFETCHER = undef;
1495
1496sub find_async {
1497 my ($path, $origin) = @_;
1498
1499 $path = normalise $path, $origin && $origin->{path};
1500
1501 if (my $map = $cf::MAP{$path}) {
1502 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1503 }
1504
1505 undef $MAP_PREFETCH{$path};
1506 $MAP_PREFETCHER ||= cf::async {
1507 while (%MAP_PREFETCH) {
1508 for my $path (keys %MAP_PREFETCH) {
1509 my $map = find $path
1510 or next;
1297 $map->load; 1511 $map->load;
1298 $map 1512
1513 delete $MAP_PREFETCH{$path};
1514 }
1515 }
1516 undef $MAP_PREFETCHER;
1299 } 1517 };
1518 $MAP_PREFETCHER->prio (6);
1519
1520 ()
1300} 1521}
1301 1522
1302sub save { 1523sub save {
1303 my ($self) = @_; 1524 my ($self) = @_;
1304 1525
1526 my $lock = cf::lock_acquire "map_data:" . $self->path;
1527
1305 $self->{last_save} = $cf::RUNTIME; 1528 $self->{last_save} = $cf::RUNTIME;
1306 1529
1307 return unless $self->dirty; 1530 return unless $self->dirty;
1308 1531
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1532 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1533 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1534
1312 $self->{load_path} = $save; 1535 $self->{load_path} = $save;
1313 1536
1314 return if $self->{deny_save}; 1537 return if $self->{deny_save};
1315 1538
1539 local $self->{last_access} = $self->last_access;#d#
1540
1541 cf::async {
1542 $_->contr->save for $self->players;
1543 };
1544
1316 if ($uniq) { 1545 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1546 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1547 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1548 } else {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1549 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321 } 1550 }
1322} 1551}
1323 1552
1324sub swap_out { 1553sub swap_out {
1325 my ($self) = @_; 1554 my ($self) = @_;
1555
1556 # save first because save cedes
1557 $self->save;
1558
1559 my $lock = cf::lock_acquire "map_data:" . $self->path;
1326 1560
1327 return if $self->players; 1561 return if $self->players;
1328 return if $self->in_memory != cf::MAP_IN_MEMORY; 1562 return if $self->in_memory != cf::MAP_IN_MEMORY;
1329 return if $self->{deny_save}; 1563 return if $self->{deny_save};
1330 1564
1331 $self->save;
1332 $self->clear; 1565 $self->clear;
1333 $self->in_memory (cf::MAP_SWAPPED); 1566 $self->in_memory (cf::MAP_SWAPPED);
1334} 1567}
1335 1568
1336sub reset_at { 1569sub reset_at {
1337 my ($self) = @_; 1570 my ($self) = @_;
1338 1571
1339 # TODO: safety, remove and allow resettable per-player maps 1572 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel}; 1573 return 1e99 if $self->isa ("ext::map_per_player");#d#
1341 return 1e99 if $self->{deny_reset}; 1574 return 1e99 if $self->{deny_reset};
1342 1575
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1576 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1577 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345 1578
1350 my ($self) = @_; 1583 my ($self) = @_;
1351 1584
1352 $self->reset_at <= $cf::RUNTIME 1585 $self->reset_at <= $cf::RUNTIME
1353} 1586}
1354 1587
1355sub unlink_save {
1356 my ($self) = @_;
1357
1358 utf8::encode (my $save = $self->{path}->save_path);
1359 aioreq_pri 3; IO::AIO::aio_unlink $save;
1360 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361}
1362
1363sub rename {
1364 my ($self, $new_path) = @_;
1365
1366 $self->unlink_save;
1367
1368 delete $cf::MAP{$self->path};
1369 $self->{path} = new cf::path $new_path;
1370 $self->path ($self->{path}->as_string);
1371 $cf::MAP{$self->path} = $self;
1372
1373 $self->save;
1374}
1375
1376sub reset { 1588sub reset {
1377 my ($self) = @_; 1589 my ($self) = @_;
1378 1590
1591 my $lock = cf::lock_acquire "map_data:$self->{path}";
1592
1379 return if $self->players; 1593 return if $self->players;
1380 return if $self->{path}{user_rel};#d# 1594 return if $self->isa ("ext::map_per_player");#d#
1381 1595
1382 warn "resetting map ", $self->path;#d# 1596 warn "resetting map ", $self->path;#d#
1383 1597
1598 $self->in_memory (cf::MAP_SWAPPED);
1599
1600 # need to save uniques path
1601 unless ($self->{deny_save}) {
1602 my $uniq = $self->uniq_path; utf8::encode $uniq;
1603
1604 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1605 if $uniq;
1606 }
1607
1384 delete $cf::MAP{$self->path}; 1608 delete $cf::MAP{$self->path};
1609
1610 $self->clear;
1385 1611
1386 $_->clear_links_to ($self) for values %cf::MAP; 1612 $_->clear_links_to ($self) for values %cf::MAP;
1387 1613
1388 $self->unlink_save; 1614 $self->unlink_save;
1389 $self->destroy; 1615 $self->destroy;
1392my $nuke_counter = "aaaa"; 1618my $nuke_counter = "aaaa";
1393 1619
1394sub nuke { 1620sub nuke {
1395 my ($self) = @_; 1621 my ($self) = @_;
1396 1622
1623 delete $cf::MAP{$self->path};
1624
1625 $self->unlink_save;
1626
1627 bless $self, "cf::map";
1628 delete $self->{deny_reset};
1397 $self->{deny_save} = 1; 1629 $self->{deny_save} = 1;
1398 $self->reset_timeout (1); 1630 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++)); 1631 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1632
1633 $cf::MAP{$self->path} = $self;
1634
1400 $self->reset; # polite request, might not happen 1635 $self->reset; # polite request, might not happen
1401} 1636}
1402 1637
1403sub customise_for { 1638=item cf::map::unique_maps
1404 my ($map, $ob) = @_;
1405 1639
1406 if ($map->per_player) { 1640Returns an arrayref of paths of all shared maps that have
1407 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1641instantiated unique items. May block.
1408 }
1409 1642
1410 $map 1643=cut
1411}
1412 1644
1413sub emergency_save { 1645sub unique_maps() {
1414 local $cf::FREEZE = 1; 1646 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1647 or return;
1415 1648
1416 warn "enter emergency map save\n"; 1649 my @paths;
1417 1650
1418 cf::sync_job { 1651 for (@$files) {
1419 warn "begin emergency map save\n"; 1652 utf8::decode $_;
1420 $_->save for values %cf::MAP; 1653 next if /\.pst$/;
1654 next unless /^$PATH_SEP/o;
1655
1656 push @paths, cf::map::normalise $_;
1421 }; 1657 }
1422 1658
1423 warn "end emergency map save\n"; 1659 \@paths
1424} 1660}
1425 1661
1426package cf; 1662package cf;
1427 1663
1428=back 1664=back
1429 1665
1666=head3 cf::object
1667
1668=cut
1669
1670package cf::object;
1671
1672=over 4
1673
1674=item $ob->inv_recursive
1675
1676Returns the inventory of the object _and_ their inventories, recursively.
1677
1678=cut
1679
1680sub inv_recursive_;
1681sub inv_recursive_ {
1682 map { $_, inv_recursive_ $_->inv } @_
1683}
1684
1685sub inv_recursive {
1686 inv_recursive_ inv $_[0]
1687}
1688
1689package cf;
1690
1691=back
1430 1692
1431=head3 cf::object::player 1693=head3 cf::object::player
1432 1694
1433=over 4 1695=over 4
1434 1696
1474 1736
1475=item $player_object->enter_link 1737=item $player_object->enter_link
1476 1738
1477Freezes the player and moves him/her to a special map (C<{link}>). 1739Freezes the player and moves him/her to a special map (C<{link}>).
1478 1740
1479The player should be reaosnably safe there for short amounts of time. You 1741The player should be reasonably safe there for short amounts of time. You
1480I<MUST> call C<leave_link> as soon as possible, though. 1742I<MUST> call C<leave_link> as soon as possible, though.
1481 1743
1744Will never block.
1745
1482=item $player_object->leave_link ($map, $x, $y) 1746=item $player_object->leave_link ($map, $x, $y)
1483 1747
1484Moves the player out of the specila link map onto the given map. If the 1748Moves the player out of the special C<{link}> map onto the specified
1485map is not valid (or omitted), the player will be moved back to the 1749map. If the map is not valid (or omitted), the player will be moved back
1486location he/she was before the call to C<enter_link>, or, if that fails, 1750to the location he/she was before the call to C<enter_link>, or, if that
1487to the emergency map position. 1751fails, to the emergency map position.
1488 1752
1489Might block. 1753Might block.
1490 1754
1491=cut 1755=cut
1756
1757sub link_map {
1758 unless ($LINK_MAP) {
1759 $LINK_MAP = cf::map::find "{link}"
1760 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1761 $LINK_MAP->load;
1762 }
1763
1764 $LINK_MAP
1765}
1492 1766
1493sub cf::object::player::enter_link { 1767sub cf::object::player::enter_link {
1494 my ($self) = @_; 1768 my ($self) = @_;
1495 1769
1496 $self->deactivate_recursive; 1770 $self->deactivate_recursive;
1497 1771
1498 return if $self->map == $LINK_MAP; 1772 return if UNIVERSAL::isa $self->map, "ext::map_link";
1499 1773
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1774 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map; 1775 if $self->map;
1502 1776
1503 $self->enter_map ($LINK_MAP, 20, 20); 1777 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1504} 1778}
1505 1779
1506sub cf::object::player::leave_link { 1780sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_; 1781 my ($self, $map, $x, $y) = @_;
1508 1782
1509 my $link_pos = delete $self->{_link_pos}; 1783 my $link_pos = delete $self->{_link_pos};
1510 1784
1511 unless ($map) { 1785 unless ($map) {
1512 # restore original map position 1786 # restore original map position
1513 ($map, $x, $y) = @{ $link_pos || [] }; 1787 ($map, $x, $y) = @{ $link_pos || [] };
1514 $map = cf::map::find_map $map; 1788 $map = cf::map::find $map;
1515 1789
1516 unless ($map) { 1790 unless ($map) {
1517 ($map, $x, $y) = @$EMERGENCY_POSITION; 1791 ($map, $x, $y) = @$EMERGENCY_POSITION;
1518 $map = cf::map::find_map $map 1792 $map = cf::map::find $map
1519 or die "FATAL: cannot load emergency map\n"; 1793 or die "FATAL: cannot load emergency map\n";
1520 } 1794 }
1521 } 1795 }
1522 1796
1523 ($x, $y) = (-1, -1) 1797 ($x, $y) = (-1, -1)
1526 # use -1 or undef as default coordinates, not 0, 0 1800 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y) 1801 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0; 1802 if $x <=0 && $y <= 0;
1529 1803
1530 $map->load; 1804 $map->load;
1805 $map->load_diag;
1531 1806
1807 return unless $self->contr->active;
1532 $self->activate_recursive; 1808 $self->activate_recursive;
1809
1810 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533 $self->enter_map ($map, $x, $y); 1811 $self->enter_map ($map, $x, $y);
1534} 1812}
1535 1813
1536cf::player->attach ( 1814cf::player->attach (
1537 on_logout => sub { 1815 on_logout => sub {
1549 1827
1550 # try to abort aborted map switching on player login :) 1828 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes 1829 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) { 1830 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link; 1831 $pl->ob->enter_link;
1554 cf::async { 1832 (async {
1833 $pl->ob->reply (undef,
1834 "There was an internal problem at your last logout, "
1835 . "the server will try to bring you to your intended destination in a second.",
1836 cf::NDI_RED);
1555 # we need this sleep as the login has a concurrent enter_exit running 1837 # we need this sleep as the login has a concurrent enter_exit running
1556 # and this sleep increases chances of the player not ending up in scorn 1838 # and this sleep increases chances of the player not ending up in scorn
1557 Coro::Timer::sleep 1; 1839 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link; 1840 $pl->ob->leave_link;
1559 }; 1841 })->prio (2);
1560 } 1842 }
1561 }, 1843 },
1562); 1844);
1563 1845
1564=item $player_object->goto_map ($path, $x, $y) 1846=item $player_object->goto ($path, $x, $y)
1565 1847
1566=cut 1848=cut
1567 1849
1568sub cf::object::player::goto_map { 1850sub cf::object::player::goto {
1569 my ($self, $path, $x, $y) = @_; 1851 my ($self, $path, $x, $y) = @_;
1570 1852
1571 $self->enter_link; 1853 $self->enter_link;
1572 1854
1573 (cf::async { 1855 (async {
1574 $path = new cf::path $path; 1856 my $map = eval {
1575
1576 my $map = cf::map::find_map $path->as_string; 1857 my $map = cf::map::find $path;
1577 $map = $map->customise_for ($self) if $map; 1858 $map = $map->customise_for ($self) if $map;
1578 1859 $map
1579# warn "entering ", $map->path, " at ($x, $y)\n" 1860 } or
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1861 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583 1862
1584 $self->leave_link ($map, $x, $y); 1863 $self->leave_link ($map, $x, $y);
1585 })->prio (1); 1864 })->prio (1);
1586} 1865}
1587 1866
1591 1870
1592sub parse_random_map_params { 1871sub parse_random_map_params {
1593 my ($spec) = @_; 1872 my ($spec) = @_;
1594 1873
1595 my $rmp = { # defaults 1874 my $rmp = { # defaults
1596 xsize => 10, 1875 xsize => (cf::rndm 15, 40),
1597 ysize => 10, 1876 ysize => (cf::rndm 15, 40),
1877 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1878 #layout => string,
1598 }; 1879 };
1599 1880
1600 for (split /\n/, $spec) { 1881 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2; 1882 my ($k, $v) = split /\s+/, $_, 2;
1602 1883
1606 $rmp 1887 $rmp
1607} 1888}
1608 1889
1609sub prepare_random_map { 1890sub prepare_random_map {
1610 my ($exit) = @_; 1891 my ($exit) = @_;
1892
1893 my $guard = cf::lock_acquire "exit_prepare:$exit";
1611 1894
1612 # all this does is basically replace the /! path by 1895 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed 1896 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object 1897 # that depends on the exit object
1615 1898
1616 my $rmp = parse_random_map_params $exit->msg; 1899 my $rmp = parse_random_map_params $exit->msg;
1617 1900
1618 if ($exit->map) { 1901 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name; 1902 $rmp->{region} = $exit->region->name;
1620 $rmp->{origin_map} = $exit->map->path; 1903 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x; 1904 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y; 1905 $rmp->{origin_y} = $exit->y;
1623 } 1906 }
1624 1907
1625 $rmp->{random_seed} ||= $exit->random_seed; 1908 $rmp->{random_seed} ||= $exit->random_seed;
1626 1909
1627 my $data = cf::to_json $rmp; 1910 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data; 1911 my $md5 = Digest::MD5::md5_hex $data;
1912 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629 1913
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1914 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0; 1915 aio_write $fh, 0, (length $data), $data, 0;
1916 undef $fh;
1917 aio_rename "$meta~", $meta;
1632 1918
1633 $exit->slaying ("?random/$md5"); 1919 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef); 1920 $exit->msg (undef);
1635 } 1921 }
1636} 1922}
1638sub cf::object::player::enter_exit { 1924sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_; 1925 my ($self, $exit) = @_;
1640 1926
1641 return unless $self->type == cf::PLAYER; 1927 return unless $self->type == cf::PLAYER;
1642 1928
1929 if ($exit->slaying eq "/!") {
1930 #TODO: this should de-fi-ni-te-ly not be a sync-job
1931 cf::sync_job { prepare_random_map $exit };
1932 }
1933
1934 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1935 my $hp = $exit->stats->hp;
1936 my $sp = $exit->stats->sp;
1937
1643 $self->enter_link; 1938 $self->enter_link;
1644 1939
1645 (cf::async { 1940 (async {
1941 $self->deactivate_recursive; # just to be sure
1646 unless (eval { 1942 unless (eval {
1647 prepare_random_map $exit 1943 $self->goto ($slaying, $hp, $sp);
1648 if $exit->slaying eq "/!";
1649
1650 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652 1944
1653 1; 1945 1;
1654 }) { 1946 }) {
1655 $self->message ("Something went wrong deep within the crossfire server. " 1947 $self->message ("Something went wrong deep within the crossfire server. "
1656 . "I'll try to bring you back to the map you were before. " 1948 . "I'll try to bring you back to the map you were before. "
1657 . "Please report this to the dungeon master", 1949 . "Please report this to the dungeon master!",
1658 cf::NDI_UNIQUE | cf::NDI_RED); 1950 cf::NDI_UNIQUE | cf::NDI_RED);
1659 1951
1660 warn "ERROR in enter_exit: $@"; 1952 warn "ERROR in enter_exit: $@";
1661 $self->leave_link; 1953 $self->leave_link;
1662 } 1954 }
1713 on_reply => sub { 2005 on_reply => sub {
1714 my ($ns, $msg) = @_; 2006 my ($ns, $msg) = @_;
1715 2007
1716 # this weird shuffling is so that direct followup queries 2008 # this weird shuffling is so that direct followup queries
1717 # get handled first 2009 # get handled first
1718 my $queue = delete $ns->{query_queue}; 2010 my $queue = delete $ns->{query_queue}
2011 or return; # be conservative, not sure how that can happen, but we saw a crash here
1719 2012
1720 (shift @$queue)->[1]->($msg); 2013 (shift @$queue)->[1]->($msg);
2014 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1721 2015
1722 push @{ $ns->{query_queue} }, @$queue; 2016 push @{ $ns->{query_queue} }, @$queue;
1723 2017
1724 if (@{ $ns->{query_queue} } == @$queue) { 2018 if (@{ $ns->{query_queue} } == @$queue) {
1725 if (@$queue) { 2019 if (@$queue) {
1729 } 2023 }
1730 } 2024 }
1731 }, 2025 },
1732); 2026);
1733 2027
1734=item $client->coro (\&cb) 2028=item $client->async (\&cb)
1735 2029
1736Create a new coroutine, running the specified callback. The coroutine will 2030Create a new coroutine, running the specified callback. The coroutine will
1737be automatically cancelled when the client gets destroyed (e.g. on logout, 2031be automatically cancelled when the client gets destroyed (e.g. on logout,
1738or loss of connection). 2032or loss of connection).
1739 2033
1740=cut 2034=cut
1741 2035
1742sub cf::client::coro { 2036sub cf::client::async {
1743 my ($self, $cb) = @_; 2037 my ($self, $cb) = @_;
1744 2038
1745 my $coro = &cf::async ($cb); 2039 my $coro = &Coro::async ($cb);
1746 2040
1747 $coro->on_destroy (sub { 2041 $coro->on_destroy (sub {
1748 delete $self->{_coro}{$coro+0}; 2042 delete $self->{_coro}{$coro+0};
1749 }); 2043 });
1750 2044
1886The parameter C<$family> should best start with the name of the extension 2180The parameter C<$family> should best start with the name of the extension
1887using it, it should be unique. 2181using it, it should be unique.
1888 2182
1889=over 4 2183=over 4
1890 2184
1891=item $hashref = cf::db_get $family
1892
1893Return a hashref for use by the extension C<$family>, which can be
1894modified. After modifications, you have to call C<cf::db_dirty> or
1895C<cf::db_sync>.
1896
1897=item $value = cf::db_get $family => $key 2185=item $value = cf::db_get $family => $key
1898 2186
1899Returns a single value from the database 2187Returns a single value from the database.
1900
1901=item cf::db_put $family => $hashref
1902
1903Stores the given family hashref into the database. Updates are delayed, if
1904you want the data to be synced to disk immediately, use C<cf::db_sync>.
1905 2188
1906=item cf::db_put $family => $key => $value 2189=item cf::db_put $family => $key => $value
1907 2190
1908Stores the given C<$value> in the family hash. Updates are delayed, if you 2191Stores the given C<$value> in the family.
1909want the data to be synced to disk immediately, use C<cf::db_sync>.
1910
1911=item cf::db_dirty
1912
1913Marks the database as dirty, to be updated at a later time.
1914
1915=item cf::db_sync
1916
1917Immediately write the database to disk I<if it is dirty>.
1918 2192
1919=cut 2193=cut
1920 2194
1921our $DB; 2195our $DB;
1922 2196
1923{ 2197sub db_init {
2198 unless ($DB) {
2199 $DB = BDB::db_create $DB_ENV;
2200
2201 cf::sync_job {
2202 eval {
2203 $DB->set_flags (BDB::CHKSUM);
2204
2205 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2206 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2207 cf::cleanup "db_open(db): $!" if $!;
2208 };
2209 cf::cleanup "db_open(db): $@" if $@;
2210 };
2211
1924 my $path = cf::localdir . "/database.pst"; 2212 my $path = cf::localdir . "/database.pst";
2213 if (stat $path) {
2214 cf::sync_job {
2215 my $pst = Storable::retrieve $path;
1925 2216
1926 sub db_load() { 2217 cf::db_put (board => data => $pst->{board});
1927 $DB = stat $path ? Storable::retrieve $path : { }; 2218 cf::db_put (guildrules => data => $pst->{guildrules});
1928 } 2219 cf::db_put (rent => balance => $pst->{rent}{balance});
2220 BDB::db_env_txn_checkpoint $DB_ENV;
1929 2221
1930 my $pid; 2222 unlink $path;
1931
1932 sub db_save() {
1933 waitpid $pid, 0 if $pid;
1934 if (0 == ($pid = fork)) {
1935 $DB->{_meta}{version} = 1;
1936 Storable::nstore $DB, "$path~";
1937 rename "$path~", $path;
1938 cf::_exit 0 if defined $pid;
1939 } 2223 };
1940 }
1941
1942 my $dirty;
1943
1944 sub db_sync() {
1945 db_save if $dirty;
1946 undef $dirty;
1947 }
1948
1949 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1950 db_sync;
1951 });
1952
1953 sub db_dirty() {
1954 $dirty = 1;
1955 $idle->start;
1956 }
1957
1958 sub db_get($;$) {
1959 @_ >= 2
1960 ? $DB->{$_[0]}{$_[1]}
1961 : ($DB->{$_[0]} ||= { })
1962 }
1963
1964 sub db_put($$;$) {
1965 if (@_ >= 3) {
1966 $DB->{$_[0]}{$_[1]} = $_[2];
1967 } else {
1968 $DB->{$_[0]} = $_[1];
1969 }
1970 db_dirty;
1971 }
1972
1973 cf::global->attach (
1974 prio => 10000,
1975 on_cleanup => sub {
1976 db_sync;
1977 }, 2224 }
1978 ); 2225 }
2226}
2227
2228sub db_get($$) {
2229 my $key = "$_[0]/$_[1]";
2230
2231 cf::sync_job {
2232 BDB::db_get $DB, undef, $key, my $data;
2233
2234 $! ? ()
2235 : Compress::LZF::sthaw $data
2236 }
2237}
2238
2239sub db_put($$$) {
2240 BDB::dbreq_pri 4;
2241 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1979} 2242}
1980 2243
1981############################################################################# 2244#############################################################################
1982# the server's main() 2245# the server's init and main functions
2246
2247sub init_resources {
2248 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2249 or die "unable to load regions file\n";#d#
2250}
1983 2251
1984sub cfg_load { 2252sub cfg_load {
1985 open my $fh, "<:utf8", cf::confdir . "/config" 2253 open my $fh, "<:utf8", cf::confdir . "/config"
1986 or return; 2254 or return;
1987 2255
1988 local $/; 2256 local $/;
1989 *CFG = YAML::Syck::Load <$fh>; 2257 *CFG = YAML::Syck::Load <$fh>;
2258
2259 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2260
2261 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2262 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2263
2264 if (exists $CFG{mlockall}) {
2265 eval {
2266 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2267 and die "WARNING: m(un)lockall failed: $!\n";
2268 };
2269 warn $@ if $@;
2270 }
2271}
2272
2273sub init {
2274 init_resources;
1990} 2275}
1991 2276
1992sub main { 2277sub main {
1993 # we must not ever block the main coroutine 2278 # we must not ever block the main coroutine
1994 local $Coro::idle = sub { 2279 local $Coro::idle = sub {
1995 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2280 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1996 (Coro::unblock_sub { 2281 (async {
1997 Event::one_event; 2282 Event::one_event;
1998 })->(); 2283 })->prio (Coro::PRIO_MAX);
1999 }; 2284 };
2000 2285
2001 cfg_load; 2286 cfg_load;
2002 db_load; 2287 db_init;
2003 load_extensions; 2288 load_extensions;
2289
2290 $TICK_WATCHER->start;
2004 Event::loop; 2291 Event::loop;
2005} 2292}
2006 2293
2007############################################################################# 2294#############################################################################
2008# initialisation 2295# initialisation and cleanup
2296
2297# install some emergency cleanup handlers
2298BEGIN {
2299 for my $signal (qw(INT HUP TERM)) {
2300 Event->signal (
2301 reentrant => 0,
2302 data => WF_AUTOCANCEL,
2303 signal => $signal,
2304 prio => 0,
2305 cb => sub {
2306 cf::cleanup "SIG$signal";
2307 },
2308 );
2309 }
2310}
2311
2312sub emergency_save() {
2313 my $freeze_guard = cf::freeze_mainloop;
2314
2315 warn "enter emergency perl save\n";
2316
2317 cf::sync_job {
2318 # use a peculiar iteration method to avoid tripping on perl
2319 # refcount bugs in for. also avoids problems with players
2320 # and maps saved/destroyed asynchronously.
2321 warn "begin emergency player save\n";
2322 for my $login (keys %cf::PLAYER) {
2323 my $pl = $cf::PLAYER{$login} or next;
2324 $pl->valid or next;
2325 $pl->save;
2326 }
2327 warn "end emergency player save\n";
2328
2329 warn "begin emergency map save\n";
2330 for my $path (keys %cf::MAP) {
2331 my $map = $cf::MAP{$path} or next;
2332 $map->valid or next;
2333 $map->save;
2334 }
2335 warn "end emergency map save\n";
2336
2337 warn "begin emergency database checkpoint\n";
2338 BDB::db_env_txn_checkpoint $DB_ENV;
2339 warn "end emergency database checkpoint\n";
2340 };
2341
2342 warn "leave emergency perl save\n";
2343}
2344
2345sub post_cleanup {
2346 my ($make_core) = @_;
2347
2348 warn Carp::longmess "post_cleanup backtrace"
2349 if $make_core;
2350}
2009 2351
2010sub reload() { 2352sub reload() {
2011 # can/must only be called in main 2353 # can/must only be called in main
2012 if ($Coro::current != $Coro::main) { 2354 if ($Coro::current != $Coro::main) {
2013 warn "can only reload from main coroutine\n"; 2355 warn "can only reload from main coroutine";
2014 return; 2356 return;
2015 } 2357 }
2016 2358
2017 warn "reloading..."; 2359 warn "reloading...";
2018 2360
2019 local $FREEZE = 1; 2361 warn "entering sync_job";
2362
2363 cf::sync_job {
2364 cf::write_runtime; # external watchdog should not bark
2020 cf::emergency_save; 2365 cf::emergency_save;
2366 cf::write_runtime; # external watchdog should not bark
2021 2367
2022 eval { 2368 warn "syncing database to disk";
2369 BDB::db_env_txn_checkpoint $DB_ENV;
2370
2023 # if anything goes wrong in here, we should simply crash as we already saved 2371 # if anything goes wrong in here, we should simply crash as we already saved
2024 2372
2025 # cancel all watchers 2373 warn "cancelling all WF_AUTOCANCEL watchers";
2026 for (Event::all_watchers) { 2374 for (Event::all_watchers) {
2027 $_->cancel if $_->data & WF_AUTOCANCEL; 2375 $_->cancel if $_->data & WF_AUTOCANCEL;
2028 } 2376 }
2029 2377
2378 warn "flushing outstanding aio requests";
2379 for (;;) {
2380 BDB::flush;
2381 IO::AIO::flush;
2382 Coro::cede;
2383 last unless IO::AIO::nreqs || BDB::nreqs;
2384 warn "iterate...";
2385 }
2386
2030 # cancel all extension coros 2387 warn "cancelling all extension coros";
2031 $_->cancel for values %EXT_CORO; 2388 $_->cancel for values %EXT_CORO;
2032 %EXT_CORO = (); 2389 %EXT_CORO = ();
2033 2390
2034 # unload all extensions 2391 warn "removing commands";
2035 for (@exts) { 2392 %COMMAND = ();
2393
2394 warn "removing ext commands";
2395 %EXTCMD = ();
2396
2397 warn "unloading/nuking all extensions";
2398 for my $pkg (@EXTS) {
2036 warn "unloading <$_>"; 2399 warn "... unloading $pkg";
2037 unload_extension $_; 2400
2401 if (my $cb = $pkg->can ("unload")) {
2402 eval {
2403 $cb->($pkg);
2404 1
2405 } or warn "$pkg unloaded, but with errors: $@";
2038 } 2406 }
2039 2407
2408 warn "... nuking $pkg";
2409 Symbol::delete_package $pkg;
2410 }
2411
2040 # unload all modules loaded from $LIBDIR 2412 warn "unloading all perl modules loaded from $LIBDIR";
2041 while (my ($k, $v) = each %INC) { 2413 while (my ($k, $v) = each %INC) {
2042 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2414 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2043 2415
2044 warn "removing <$k>"; 2416 warn "... unloading $k";
2045 delete $INC{$k}; 2417 delete $INC{$k};
2046 2418
2047 $k =~ s/\.pm$//; 2419 $k =~ s/\.pm$//;
2048 $k =~ s/\//::/g; 2420 $k =~ s/\//::/g;
2049 2421
2052 } 2424 }
2053 2425
2054 Symbol::delete_package $k; 2426 Symbol::delete_package $k;
2055 } 2427 }
2056 2428
2057 # sync database to disk
2058 cf::db_sync;
2059 IO::AIO::flush;
2060
2061 # get rid of safe::, as good as possible 2429 warn "getting rid of safe::, as good as possible";
2062 Symbol::delete_package "safe::$_" 2430 Symbol::delete_package "safe::$_"
2063 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2431 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2064 2432
2065 # remove register_script_function callbacks
2066 # TODO
2067
2068 # unload cf.pm "a bit" 2433 warn "unloading cf.pm \"a bit\"";
2069 delete $INC{"cf.pm"}; 2434 delete $INC{"cf.pm"};
2070 2435
2071 # don't, removes xs symbols, too, 2436 # don't, removes xs symbols, too,
2072 # and global variables created in xs 2437 # and global variables created in xs
2073 #Symbol::delete_package __PACKAGE__; 2438 #Symbol::delete_package __PACKAGE__;
2074 2439
2075 # reload cf.pm 2440 warn "unload completed, starting to reload now";
2441
2076 warn "reloading cf.pm"; 2442 warn "reloading cf.pm";
2077 require cf; 2443 require cf;
2078 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2444 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2079 2445
2080 # load config and database again 2446 warn "loading config and database again";
2081 cf::cfg_load; 2447 cf::cfg_load;
2082 cf::db_load;
2083 2448
2084 # load extensions
2085 warn "load extensions"; 2449 warn "loading extensions";
2086 cf::load_extensions; 2450 cf::load_extensions;
2087 2451
2088 # reattach attachments to objects 2452 warn "reattaching attachments to objects/players";
2089 warn "reattach";
2090 _global_reattach; 2453 _global_reattach;
2091 }; 2454 warn "reattaching attachments to maps";
2455 reattach $_ for values %MAP;
2092 2456
2093 if ($@) { 2457 warn "loading reloadable resources";
2458 init_resources;
2459
2460 warn "leaving sync_job";
2461
2462 1
2463 } or do {
2094 warn $@; 2464 warn $@;
2095 warn "error while reloading, exiting."; 2465 warn "error while reloading, exiting.";
2096 exit 1; 2466 exit 1;
2097 } 2467 };
2098 2468
2099 warn "reloaded successfully"; 2469 warn "reloaded";
2100}; 2470};
2101 2471
2102############################################################################# 2472our $RELOAD_WATCHER; # used only during reload
2103
2104unless ($LINK_MAP) {
2105 $LINK_MAP = cf::map::new;
2106
2107 $LINK_MAP->width (41);
2108 $LINK_MAP->height (41);
2109 $LINK_MAP->alloc;
2110 $LINK_MAP->path ("{link}");
2111 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2112 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2113
2114 # dirty hack because... archetypes are not yet loaded
2115 Event->timer (
2116 after => 2,
2117 cb => sub {
2118 $_[0]->w->cancel;
2119
2120 # provide some exits "home"
2121 my $exit = cf::object::new "exit";
2122
2123 $exit->slaying ($EMERGENCY_POSITION->[0]);
2124 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2125 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2126
2127 $LINK_MAP->insert ($exit->clone, 19, 19);
2128 $LINK_MAP->insert ($exit->clone, 19, 20);
2129 $LINK_MAP->insert ($exit->clone, 19, 21);
2130 $LINK_MAP->insert ($exit->clone, 20, 19);
2131 $LINK_MAP->insert ($exit->clone, 20, 21);
2132 $LINK_MAP->insert ($exit->clone, 21, 19);
2133 $LINK_MAP->insert ($exit->clone, 21, 20);
2134 $LINK_MAP->insert ($exit->clone, 21, 21);
2135
2136 $exit->destroy;
2137 });
2138
2139 $LINK_MAP->{deny_save} = 1;
2140 $LINK_MAP->{deny_reset} = 1;
2141
2142 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2143}
2144
2145register "<global>", __PACKAGE__;
2146 2473
2147register_command "reload" => sub { 2474register_command "reload" => sub {
2148 my ($who, $arg) = @_; 2475 my ($who, $arg) = @_;
2149 2476
2150 if ($who->flag (FLAG_WIZ)) { 2477 if ($who->flag (FLAG_WIZ)) {
2151 $who->message ("start of reload."); 2478 $who->message ("reloading server.");
2479
2480 # doing reload synchronously and two reloads happen back-to-back,
2481 # coro crashes during coro_state_free->destroy here.
2482
2483 $RELOAD_WATCHER ||= Event->timer (
2484 reentrant => 0,
2485 after => 0,
2486 data => WF_AUTOCANCEL,
2487 cb => sub {
2152 reload; 2488 reload;
2153 $who->message ("end of reload."); 2489 undef $RELOAD_WATCHER;
2490 },
2491 );
2154 } 2492 }
2155}; 2493};
2156 2494
2157unshift @INC, $LIBDIR; 2495unshift @INC, $LIBDIR;
2496
2497my $bug_warning = 0;
2158 2498
2159$TICK_WATCHER = Event->timer ( 2499$TICK_WATCHER = Event->timer (
2160 reentrant => 0, 2500 reentrant => 0,
2501 parked => 1,
2161 prio => 0, 2502 prio => 0,
2162 at => $NEXT_TICK || $TICK, 2503 at => $NEXT_TICK || $TICK,
2163 data => WF_AUTOCANCEL, 2504 data => WF_AUTOCANCEL,
2164 cb => sub { 2505 cb => sub {
2165 unless ($FREEZE) { 2506 if ($Coro::current != $Coro::main) {
2507 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2508 unless ++$bug_warning > 10;
2509 return;
2510 }
2511
2512 $NOW = Event::time;
2513
2166 cf::server_tick; # one server iteration 2514 cf::server_tick; # one server iteration
2167 $RUNTIME += $TICK; 2515 $RUNTIME += $TICK;
2168 }
2169
2170 $NEXT_TICK += $TICK; 2516 $NEXT_TICK += $TICK;
2517
2518 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519 $NEXT_RUNTIME_WRITE = $NOW + 10;
2520 Coro::async_pool {
2521 write_runtime
2522 or warn "ERROR: unable to write runtime file: $!";
2523 };
2524 }
2525
2526 $WAIT_FOR_TICK->broadcast;
2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2528
2529# my $AFTER = Event::time;
2530# warn $AFTER - $NOW;#d#
2171 2531
2172 # if we are delayed by four ticks or more, skip them all 2532 # if we are delayed by four ticks or more, skip them all
2173 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2533 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2174 2534
2175 $TICK_WATCHER->at ($NEXT_TICK); 2535 $TICK_WATCHER->at ($NEXT_TICK);
2176 $TICK_WATCHER->start; 2536 $TICK_WATCHER->start;
2177 }, 2537 },
2178); 2538);
2179 2539
2540{
2180IO::AIO::max_poll_time $TICK * 0.2; 2541 BDB::max_poll_time $TICK * 0.1;
2181 2542 $BDB_POLL_WATCHER = Event->io (
2182Event->io ( 2543 reentrant => 0,
2183 fd => IO::AIO::poll_fileno, 2544 fd => BDB::poll_fileno,
2184 poll => 'r', 2545 poll => 'r',
2185 prio => 5, 2546 prio => 0,
2186 data => WF_AUTOCANCEL,
2187 cb => \&IO::AIO::poll_cb,
2188);
2189
2190Event->timer (
2191 data => WF_AUTOCANCEL, 2547 data => WF_AUTOCANCEL,
2192 after => 0, 2548 cb => \&BDB::poll_cb,
2193 interval => 10, 2549 );
2194 cb => sub { 2550 BDB::min_parallel 8;
2195 (Coro::unblock_sub { 2551
2196 write_runtime 2552 BDB::set_sync_prepare {
2197 or warn "ERROR: unable to write runtime file: $!"; 2553 my $status;
2554 my $current = $Coro::current;
2555 (
2556 sub {
2557 $status = $!;
2558 $current->ready; undef $current;
2559 },
2560 sub {
2561 Coro::schedule while defined $current;
2562 $! = $status;
2563 },
2564 )
2565 };
2566
2567 unless ($DB_ENV) {
2568 $DB_ENV = BDB::db_env_create;
2569
2570 cf::sync_job {
2571 eval {
2572 BDB::db_env_open
2573 $DB_ENV,
2574 $BDB_ENV_DIR,
2575 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2576 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2577 0666;
2578
2579 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2580
2581 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2582 $DB_ENV->set_lk_detect;
2583 };
2584
2585 cf::cleanup "db_env_open(db): $@" if $@;
2198 })->(); 2586 };
2199 }, 2587 }
2200); 2588}
2589
2590{
2591 IO::AIO::min_parallel 8;
2592
2593 undef $Coro::AIO::WATCHER;
2594 IO::AIO::max_poll_time $TICK * 0.1;
2595 $AIO_POLL_WATCHER = Event->io (
2596 reentrant => 0,
2597 data => WF_AUTOCANCEL,
2598 fd => IO::AIO::poll_fileno,
2599 poll => 'r',
2600 prio => 6,
2601 cb => \&IO::AIO::poll_cb,
2602 );
2603}
2201 2604
2202END { cf::emergency_save } 2605END { cf::emergency_save }
2203 2606
22041 26071
2205 2608

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