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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.128 by root, Wed Jan 3 00:28:47 2007 UTC vs.
Revision 1.220 by root, Sat Feb 17 23:54:35 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;
328 354
329 $coro 355 $coro
330} 356}
331 357
332sub write_runtime { 358sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime";
360
333 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
334 362
335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336 or return; 364 or return;
337 365
366 my $value = $cf::RUNTIME + 90 + 10;
338 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369
339 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
340 and return; 371 and return;
341 372
373 # always fsync - this file is important
342 aio_fsync $fh 374 aio_fsync $fh
343 and return; 375 and return;
344 376
345 close $fh 377 close $fh
346 or return; 378 or return;
352} 384}
353 385
354=back 386=back
355 387
356=cut 388=cut
357
358#############################################################################
359
360package cf::path;
361
362sub new {
363 my ($class, $path, $base) = @_;
364
365 $path = $path->as_string if ref $path;
366
367 my $self = bless { }, $class;
368
369 # {... are special paths that are not touched
370 # ?xxx/... are special absolute paths
371 # ?random/... random maps
372 # /! non-realised random map exit
373 # /... normal maps
374 # ~/... per-player maps without a specific player (DO NOT USE)
375 # ~user/... per-player map of a specific user
376
377 if ($path =~ /^{/) {
378 # fine as it is
379 } elsif ($path =~ s{^\?random/}{}) {
380 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381 $self->{random} = cf::from_json $data;
382 } else {
383 if ($path =~ s{^~([^/]+)?}{}) {
384 $self->{user_rel} = 1;
385
386 if (defined $1) {
387 $self->{user} = $1;
388 } elsif ($base =~ m{^~([^/]+)/}) {
389 $self->{user} = $1;
390 } else {
391 warn "cannot resolve user-relative path without user <$path,$base>\n";
392 }
393 } elsif ($path =~ /^\//) {
394 # already absolute
395 } else {
396 $base =~ s{[^/]+/?$}{};
397 return $class->new ("$base/$path");
398 }
399
400 for ($path) {
401 redo if s{/\.?/}{/};
402 redo if s{/[^/]+/\.\./}{/};
403 }
404 }
405
406 $self->{path} = $path;
407
408 $self
409}
410
411# the name / primary key / in-game path
412sub as_string {
413 my ($self) = @_;
414
415 $self->{user_rel} ? "~$self->{user}$self->{path}"
416 : $self->{random} ? "?random/$self->{path}"
417 : $self->{path}
418}
419
420# the displayed name, this is a one way mapping
421sub visible_name {
422 my ($self) = @_;
423
424# if (my $rmp = $self->{random}) {
425# # todo: be more intelligent about this
426# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427# } else {
428 $self->as_string
429# }
430}
431
432# escape the /'s in the path
433sub _escaped_path {
434 # ∕ is U+2215
435 (my $path = $_[0]{path}) =~ s/\//∕/g;
436 $path
437}
438
439# the original (read-only) location
440sub load_path {
441 my ($self) = @_;
442
443 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444}
445
446# the temporary/swap location
447sub save_path {
448 my ($self) = @_;
449
450 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453}
454
455# the unique path, might be eq to save_path
456sub uniq_path {
457 my ($self) = @_;
458
459 $self->{user_rel} || $self->{random}
460 ? undef
461 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462}
463
464# return random map parameters, or undef
465sub random_map_params {
466 my ($self) = @_;
467
468 $self->{random}
469}
470
471# this is somewhat ugly, but style maps do need special treatment
472sub is_style_map {
473 $_[0]{path} =~ m{^/styles/}
474}
475
476package cf;
477 389
478############################################################################# 390#############################################################################
479 391
480=head2 ATTACHABLE OBJECTS 392=head2 ATTACHABLE OBJECTS
481 393
607our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
608our @CB_MAP = (); 520our @CB_MAP = ();
609 521
610my %attachment; 522my %attachment;
611 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
612sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
613 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
614 532
615 use sort 'stable'; 533 use sort 'stable';
616 534
787# object support 705# object support
788 706
789sub reattach { 707sub reattach {
790 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
791 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792 712
793 my $registry = $obj->registry; 713 my $registry = $obj->registry;
794 714
795 @$registry = (); 715 @$registry = ();
796 716
843 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
844 764
845 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
847 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
849 close $fh; 769 close $fh;
850 770
851 if (@$objs) { 771 if (@$objs) {
852 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
854 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
855 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
856 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
857 close $fh; 777 close $fh;
858 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
859 } 779 }
860 } else { 780 } else {
861 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
928=cut 848=cut
929 849
930sub register_extcmd { 850sub register_extcmd {
931 my ($name, $cb) = @_; 851 my ($name, $cb) = @_;
932 852
933 my $caller = caller;
934 #warn "registering extcmd '$name' to '$caller'";
935
936 $EXTCMD{$name} = [$cb, $caller]; 853 $EXTCMD{$name} = $cb;
937} 854}
938 855
939cf::player->attach ( 856cf::player->attach (
940 on_command => sub { 857 on_command => sub {
941 my ($pl, $name, $params) = @_; 858 my ($pl, $name, $params) = @_;
954 871
955 my $msg = eval { from_json $buf }; 872 my $msg = eval { from_json $buf };
956 873
957 if (ref $msg) { 874 if (ref $msg) {
958 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 875 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959 if (my %reply = $cb->[0]->($pl, $msg)) { 876 if (my %reply = $cb->($pl, $msg)) {
960 $pl->ext_reply ($msg->{msgid}, %reply); 877 $pl->ext_reply ($msg->{msgid}, %reply);
961 } 878 }
962 } 879 }
963 } else { 880 } else {
964 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 881 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
966 883
967 cf::override; 884 cf::override;
968 }, 885 },
969); 886);
970 887
971sub register {
972 my ($base, $pkg) = @_;
973
974 #TODO
975}
976
977sub load_extension { 888sub load_extension {
978 my ($path) = @_; 889 my ($path) = @_;
979 890
980 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 891 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
981 my $base = $1; 892 my $base = $1;
982 my $pkg = $1; 893 my $pkg = $1;
983 $pkg =~ s/[^[:word:]]/_/g; 894 $pkg =~ s/[^[:word:]]/_/g;
984 $pkg = "ext::$pkg"; 895 $pkg = "ext::$pkg";
985 896
986 warn "loading '$path' into '$pkg'\n"; 897 warn "... loading '$path' into '$pkg'\n";
987 898
988 open my $fh, "<:utf8", $path 899 open my $fh, "<:utf8", $path
989 or die "$path: $!"; 900 or die "$path: $!";
990 901
991 my $source = 902 my $source =
992 "package $pkg; use strict; use utf8;\n" 903 "package $pkg; use strict; use utf8;\n"
993 . "#line 1 \"$path\"\n{\n" 904 . "#line 1 \"$path\"\n{\n"
994 . (do { local $/; <$fh> }) 905 . (do { local $/; <$fh> })
995 . "\n};\n1"; 906 . "\n};\n1";
996 907
997 eval $source 908 unless (eval $source) {
998 or die $@ ? "$path: $@\n" 909 my $msg = $@ ? "$path: $@\n"
999 : "extension disabled.\n"; 910 : "extension disabled.\n";
1000 911 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001 push @exts, $pkg; 912 warn $@;
1002 $ext_pkg{$base} = $pkg; 913 warn "mandatory extension failed to load, exiting.\n";
1003 914 exit 1;
1004# no strict 'refs'; 915 }
1005# @{"$pkg\::ISA"} = ext::; 916 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# } 917 }
1020 918
1021 # remove commands 919 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} 920}
1046 921
1047sub load_extensions { 922sub load_extensions {
1048 for my $ext (<$LIBDIR/*.ext>) { 923 for my $ext (<$LIBDIR/*.ext>) {
1049 next unless -r $ext; 924 next unless -r $ext;
1053 } or warn "$ext not loaded: $@"; 928 } or warn "$ext not loaded: $@";
1054 } 929 }
1055} 930}
1056 931
1057############################################################################# 932#############################################################################
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 933
1095=head2 CORE EXTENSIONS 934=head2 CORE EXTENSIONS
1096 935
1097Functions and methods that extend core crossfire objects. 936Functions and methods that extend core crossfire objects.
1098 937
938=cut
939
940package cf::player;
941
942use Coro::AIO;
943
1099=head3 cf::player 944=head3 cf::player
1100 945
1101=over 4 946=over 4
1102 947
1103=item cf::player::exists $login 948=item cf::player::find $login
1104 949
1105Returns true when the given account exists. 950Returns the given player object, loading it if necessary (might block).
1106 951
1107=cut 952=cut
1108 953
1109sub cf::player::exists($) { 954sub playerdir($) {
1110 cf::player::find $_[0] 955 cf::localdir
1111 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 956 . "/"
957 . cf::playerdir
958 . "/"
959 . (ref $_[0] ? $_[0]->ob->name : $_[0])
960}
961
962sub path($) {
963 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964
965 (playerdir $login) . "/$login.pl"
966}
967
968sub find_active($) {
969 $cf::PLAYER{$_[0]}
970 and $cf::PLAYER{$_[0]}->active
971 and $cf::PLAYER{$_[0]}
972}
973
974sub exists($) {
975 my ($login) = @_;
976
977 $cf::PLAYER{$login}
978 or cf::sync_job { !aio_stat path $login }
979}
980
981sub find($) {
982 return $cf::PLAYER{$_[0]} || do {
983 my $login = $_[0];
984
985 my $guard = cf::lock_acquire "user_find:$login";
986
987 $cf::PLAYER{$_[0]} || do {
988 my $pl = load_pl path $login
989 or return;
990 $cf::PLAYER{$login} = $pl
991 }
992 }
993}
994
995sub save($) {
996 my ($pl) = @_;
997
998 return if $pl->{deny_save};
999
1000 my $path = path $pl;
1001 my $guard = cf::lock_acquire "user_save:$path";
1002
1003 return if $pl->{deny_save};
1004
1005 aio_mkdir playerdir $pl, 0770;
1006 $pl->{last_save} = $cf::RUNTIME;
1007
1008 $pl->save_pl ($path);
1009 Coro::cede;
1010}
1011
1012sub new($) {
1013 my ($login) = @_;
1014
1015 my $self = create;
1016
1017 $self->ob->name ($login);
1018 $self->{deny_save} = 1;
1019
1020 $cf::PLAYER{$login} = $self;
1021
1022 $self
1023}
1024
1025=item $pl->quit_character
1026
1027Nukes the player without looking back. If logged in, the connection will
1028be destroyed. May block for a long time.
1029
1030=cut
1031
1032sub quit_character {
1033 my ($pl) = @_;
1034
1035 my $name = $pl->ob->name;
1036
1037 $pl->{deny_save} = 1;
1038 $pl->password ("*"); # this should lock out the player until we nuked the dir
1039
1040 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041 $pl->deactivate;
1042 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1043 $pl->ns->destroy if $pl->ns;
1044
1045 my $path = playerdir $pl;
1046 my $temp = "$path~$cf::RUNTIME~deleting~";
1047 aio_rename $path, $temp;
1048 delete $cf::PLAYER{$pl->ob->name};
1049 $pl->destroy;
1050
1051 my $prefix = qr<^~\Q$name\E/>;
1052
1053 # nuke player maps
1054 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055
1056 IO::AIO::aio_rmtree $temp;
1057}
1058
1059=item cf::player::list_logins
1060
1061Returns am arrayref of all valid playernames in the system, can take a
1062while and may block, so not sync_job-capable, ever.
1063
1064=cut
1065
1066sub list_logins {
1067 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1068 or return [];
1069
1070 my @logins;
1071
1072 for my $login (@$dirs) {
1073 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1074 aio_read $fh, 0, 512, my $buf, 0 or next;
1075 $buf !~ /^password -------------$/m or next; # official not-valid tag
1076
1077 utf8::decode $login;
1078 push @logins, $login;
1079 }
1080
1081 \@logins
1082}
1083
1084=item $player->maps
1085
1086Returns an arrayref of map paths that are private for this
1087player. May block.
1088
1089=cut
1090
1091sub maps($) {
1092 my ($pl) = @_;
1093
1094 $pl = ref $pl ? $pl->ob->name : $pl;
1095
1096 my $files = aio_readdir playerdir $pl
1097 or return;
1098
1099 my @paths;
1100
1101 for (@$files) {
1102 utf8::decode $_;
1103 next if /\.(?:pl|pst)$/;
1104 next unless /^$PATH_SEP/o;
1105
1106 push @paths, cf::map::normalise "~$pl/$_";
1107 }
1108
1109 \@paths
1112} 1110}
1113 1111
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1112=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1113
1116Sends an ext reply to the player. 1114Sends an ext reply to the player.
1117 1115
1118=cut 1116=cut
1119 1117
1120sub cf::player::ext_reply($$$%) { 1118sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1119 my ($self, $id, %msg) = @_;
1122 1120
1123 $msg{msgid} = $id; 1121 $msg{msgid} = $id;
1124 1122
1125 $self->send ("ext " . to_json \%msg); 1123 $self->send ("ext " . cf::to_json \%msg);
1126} 1124}
1125
1126package cf;
1127 1127
1128=back 1128=back
1129 1129
1130 1130
1131=head3 cf::map 1131=head3 cf::map
1137package cf::map; 1137package cf::map;
1138 1138
1139use Fcntl; 1139use Fcntl;
1140use Coro::AIO; 1140use Coro::AIO;
1141 1141
1142use overload
1143 '""' => \&as_string,
1144 fallback => 1;
1145
1142our $MAX_RESET = 7200; 1146our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1147our $DEFAULT_RESET = 3000;
1144 1148
1145sub generate_random_map { 1149sub generate_random_map {
1146 my ($path, $rmp) = @_; 1150 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1151 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1152 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1153 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1154 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1155 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1156 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1157 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1158 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1159 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1160 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1161 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1162 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (cf::region::find $rmp->{region}) 1163 (cf::region::find $rmp->{region}), $rmp->{custom}
1164 )
1165}
1166
1167=item cf::map->register ($regex, $prio)
1168
1169Register a handler for the map path matching the given regex at the
1170givne priority (higher is better, built-in handlers have priority 0, the
1171default).
1172
1173=cut
1174
1175sub register {
1176 my (undef, $regex, $prio) = @_;
1177 my $pkg = caller;
1178
1179 no strict;
1180 push @{"$pkg\::ISA"}, __PACKAGE__;
1181
1182 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1183}
1184
1185# also paths starting with '/'
1186$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1187
1188sub thawer_merge {
1189 my ($self, $merge) = @_;
1190
1191 # we have to keep some variables in memory intact
1192 local $self->{path};
1193 local $self->{load_path};
1194 local $self->{deny_save};
1195 local $self->{deny_reset};
1196
1197 $self->SUPER::thawer_merge ($merge);
1198}
1199
1200sub normalise {
1201 my ($path, $base) = @_;
1202
1203 $path = "$path"; # make sure its a string
1204
1205 $path =~ s/\.map$//;
1206
1207 # map plan:
1208 #
1209 # /! non-realised random map exit (special hack!)
1210 # {... are special paths that are not being touched
1211 # ?xxx/... are special absolute paths
1212 # ?random/... random maps
1213 # /... normal maps
1214 # ~user/... per-player map of a specific user
1215
1216 $path =~ s/$PATH_SEP/\//go;
1217
1218 # treat it as relative path if it starts with
1219 # something that looks reasonable
1220 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1221 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1222
1223 $base =~ s{[^/]+/?$}{};
1224 $path = "$base/$path";
1225 }
1226
1227 for ($path) {
1228 redo if s{//}{/};
1229 redo if s{/\.?/}{/};
1230 redo if s{/[^/]+/\.\./}{/};
1231 }
1232
1233 $path
1234}
1235
1236sub new_from_path {
1237 my (undef, $path, $base) = @_;
1238
1239 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1240
1241 $path = normalise $path, $base;
1242
1243 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1244 if ($path =~ $EXT_MAP{$pkg}[1]) {
1245 my $self = bless cf::map::new, $pkg;
1246 $self->{path} = $path; $self->path ($path);
1247 $self->init; # pass $1 etc.
1248 return $self;
1249 }
1250 }
1251
1252 Carp::carp "unable to resolve path '$path' (base '$base').";
1253 ()
1254}
1255
1256sub init {
1257 my ($self) = @_;
1258
1259 $self
1260}
1261
1262sub as_string {
1263 my ($self) = @_;
1264
1265 "$self->{path}"
1266}
1267
1268# the displayed name, this is a one way mapping
1269sub visible_name {
1270 &as_string
1271}
1272
1273# the original (read-only) location
1274sub load_path {
1275 my ($self) = @_;
1276
1277 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1278}
1279
1280# the temporary/swap location
1281sub save_path {
1282 my ($self) = @_;
1283
1284 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1286}
1287
1288# the unique path, undef == no special unique path
1289sub uniq_path {
1290 my ($self) = @_;
1291
1292 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1293 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1162} 1294}
1163 1295
1164# and all this just because we cannot iterate over 1296# and all this just because we cannot iterate over
1165# all maps in C++... 1297# all maps in C++...
1166sub change_all_map_light { 1298sub change_all_map_light {
1168 1300
1169 $_->change_map_light ($change) 1301 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1302 for grep $_->outdoor, values %cf::MAP;
1171} 1303}
1172 1304
1305sub unlink_save {
1306 my ($self) = @_;
1307
1308 utf8::encode (my $save = $self->save_path);
1309 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1311}
1312
1173sub try_load_header($) { 1313sub load_header_from($) {
1174 my ($path) = @_; 1314 my ($self, $path) = @_;
1175 1315
1176 utf8::encode $path; 1316 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1317 #aio_open $path, O_RDONLY, 0
1318 # or return;
1319
1320 $self->_load_header ($path)
1178 or return; 1321 or return;
1179 1322
1180 my $map = cf::map::new 1323 $self->{load_path} = $path;
1324
1325 1
1326}
1327
1328sub load_header_orig {
1329 my ($self) = @_;
1330
1331 $self->load_header_from ($self->load_path)
1332}
1333
1334sub load_header_temp {
1335 my ($self) = @_;
1336
1337 $self->load_header_from ($self->save_path)
1338}
1339
1340sub prepare_temp {
1341 my ($self) = @_;
1342
1343 $self->last_access ((delete $self->{last_access})
1344 || $cf::RUNTIME); #d#
1345 # safety
1346 $self->{instantiate_time} = $cf::RUNTIME
1347 if $self->{instantiate_time} > $cf::RUNTIME;
1348}
1349
1350sub prepare_orig {
1351 my ($self) = @_;
1352
1353 $self->{load_original} = 1;
1354 $self->{instantiate_time} = $cf::RUNTIME;
1355 $self->last_access ($cf::RUNTIME);
1356 $self->instantiate;
1357}
1358
1359sub load_header {
1360 my ($self) = @_;
1361
1362 if ($self->load_header_temp) {
1363 $self->prepare_temp;
1364 } else {
1365 $self->load_header_orig
1181 or return; 1366 or return;
1367 $self->prepare_orig;
1368 }
1182 1369
1183 $map->load_header ($path) 1370 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1371}
1190 1372
1191sub find_map; 1373sub find;
1192sub find_map { 1374sub find {
1193 my ($path, $origin) = @_; 1375 my ($path, $origin) = @_;
1194 1376
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1377 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1378
1200 cf::lock_wait "map_find:$key"; 1379 cf::lock_wait "map_find:$path";
1201 1380
1202 $cf::MAP{$key} || do { 1381 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1382 my $guard = cf::lock_acquire "map_find:$path";
1204 1383 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; 1384 or return;
1220 1385
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; 1386 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1387
1234 if ($map->should_reset) { 1388 $map->load_header
1389 or return;
1390
1391 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1392 # doing this can freeze the server in a sync job, obviously
1393 #$cf::WAIT_FOR_TICK->wait;
1235 $map->reset; 1394 $map->reset;
1236 undef $guard; 1395 undef $guard;
1237 $map = find_map $path 1396 return find $path;
1238 or return;
1239 } 1397 }
1240 1398
1241 $cf::MAP{$key} = $map 1399 $cf::MAP{$path} = $map
1242 } 1400 }
1243} 1401}
1402
1403sub pre_load { }
1404sub post_load { }
1244 1405
1245sub load { 1406sub load {
1246 my ($self) = @_; 1407 my ($self) = @_;
1247 1408
1409 local $self->{deny_reset} = 1; # loading can take a long time
1410
1248 my $path = $self->{path}; 1411 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1412 my $guard = cf::lock_acquire "map_load:$path";
1250 1413
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1414 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1415
1253 $self->in_memory (cf::MAP_LOADING); 1416 $self->in_memory (cf::MAP_LOADING);
1254 1417
1255 $self->alloc; 1418 $self->alloc;
1419
1420 $self->pre_load;
1421
1256 $self->load_objects ($self->{load_path}, 1) 1422 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1423 or return;
1258 1424
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1425 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1426 if delete $self->{load_original};
1261 1427
1262 if (my $uniq = $path->uniq_path) { 1428 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1429 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1430 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1431 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1432 $self->_load_objects ($uniq, 0);
1267 } 1433 }
1268 } 1434 }
1435
1436 Coro::cede;
1269 1437
1270 # now do the right thing for maps 1438 # now do the right thing for maps
1271 $self->link_multipart_objects; 1439 $self->link_multipart_objects;
1272 1440
1273 if ($self->{path}->is_style_map) { 1441 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1442 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1443 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1444 $self->update_buttons;
1445 Coro::cede;
1280 $self->set_darkness_map; 1446 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1447 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1448 unless $self->difficulty;
1449 Coro::cede;
1283 $self->activate; 1450 $self->activate;
1284 } 1451 }
1285 1452
1453 $self->post_load;
1454
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1455 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1456}
1288 1457
1289sub load_map_sync { 1458sub customise_for {
1459 my ($self, $ob) = @_;
1460
1461 return find "~" . $ob->name . "/" . $self->{path}
1462 if $self->per_player;
1463
1464 $self
1465}
1466
1467# find and load all maps in the 3x3 area around a map
1468sub load_diag {
1469 my ($map) = @_;
1470
1471 my @diag; # diagonal neighbours
1472
1473 for (0 .. 3) {
1474 my $neigh = $map->tile_path ($_)
1475 or next;
1476 $neigh = find $neigh, $map
1477 or next;
1478 $neigh->load;
1479
1480 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1481 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1482 }
1483
1484 for (@diag) {
1485 my $neigh = find @$_
1486 or next;
1487 $neigh->load;
1488 }
1489}
1490
1491sub find_sync {
1290 my ($path, $origin) = @_; 1492 my ($path, $origin) = @_;
1291 1493
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1494 cf::sync_job { find $path, $origin }
1495}
1293 1496
1294 cf::sync_job { 1497sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1498 my ($map) = @_;
1296 or return; 1499
1500 cf::sync_job { $map->load };
1501}
1502
1503our %MAP_PREFETCH;
1504our $MAP_PREFETCHER = undef;
1505
1506sub find_async {
1507 my ($path, $origin) = @_;
1508
1509 $path = normalise $path, $origin && $origin->{path};
1510
1511 if (my $map = $cf::MAP{$path}) {
1512 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1513 }
1514
1515 undef $MAP_PREFETCH{$path};
1516 $MAP_PREFETCHER ||= cf::async {
1517 while (%MAP_PREFETCH) {
1518 for my $path (keys %MAP_PREFETCH) {
1519 my $map = find $path
1520 or next;
1297 $map->load; 1521 $map->load;
1298 $map 1522
1523 delete $MAP_PREFETCH{$path};
1524 }
1525 }
1526 undef $MAP_PREFETCHER;
1299 } 1527 };
1528 $MAP_PREFETCHER->prio (6);
1529
1530 ()
1300} 1531}
1301 1532
1302sub save { 1533sub save {
1303 my ($self) = @_; 1534 my ($self) = @_;
1304 1535
1536 my $lock = cf::lock_acquire "map_data:" . $self->path;
1537
1305 $self->{last_save} = $cf::RUNTIME; 1538 $self->{last_save} = $cf::RUNTIME;
1306 1539
1307 return unless $self->dirty; 1540 return unless $self->dirty;
1308 1541
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1542 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1543 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1544
1312 $self->{load_path} = $save; 1545 $self->{load_path} = $save;
1313 1546
1314 return if $self->{deny_save}; 1547 return if $self->{deny_save};
1315 1548
1549 local $self->{last_access} = $self->last_access;#d#
1550
1551 cf::async {
1552 $_->contr->save for $self->players;
1553 };
1554
1316 if ($uniq) { 1555 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1556 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1557 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1558 } else {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1559 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321 } 1560 }
1322} 1561}
1323 1562
1324sub swap_out { 1563sub swap_out {
1325 my ($self) = @_; 1564 my ($self) = @_;
1565
1566 # save first because save cedes
1567 $self->save;
1568
1569 my $lock = cf::lock_acquire "map_data:" . $self->path;
1326 1570
1327 return if $self->players; 1571 return if $self->players;
1328 return if $self->in_memory != cf::MAP_IN_MEMORY; 1572 return if $self->in_memory != cf::MAP_IN_MEMORY;
1329 return if $self->{deny_save}; 1573 return if $self->{deny_save};
1330 1574
1331 $self->save;
1332 $self->clear; 1575 $self->clear;
1333 $self->in_memory (cf::MAP_SWAPPED); 1576 $self->in_memory (cf::MAP_SWAPPED);
1334} 1577}
1335 1578
1336sub reset_at { 1579sub reset_at {
1337 my ($self) = @_; 1580 my ($self) = @_;
1338 1581
1339 # TODO: safety, remove and allow resettable per-player maps 1582 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel}; 1583 return 1e99 if $self->isa ("ext::map_per_player");#d#
1341 return 1e99 if $self->{deny_reset}; 1584 return 1e99 if $self->{deny_reset};
1342 1585
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1586 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1587 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345 1588
1350 my ($self) = @_; 1593 my ($self) = @_;
1351 1594
1352 $self->reset_at <= $cf::RUNTIME 1595 $self->reset_at <= $cf::RUNTIME
1353} 1596}
1354 1597
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 { 1598sub reset {
1377 my ($self) = @_; 1599 my ($self) = @_;
1378 1600
1601 my $lock = cf::lock_acquire "map_data:$self->{path}";
1602
1379 return if $self->players; 1603 return if $self->players;
1380 return if $self->{path}{user_rel};#d# 1604 return if $self->isa ("ext::map_per_player");#d#
1381 1605
1382 warn "resetting map ", $self->path;#d# 1606 warn "resetting map ", $self->path;#d#
1383 1607
1608 $self->in_memory (cf::MAP_SWAPPED);
1609
1610 # need to save uniques path
1611 unless ($self->{deny_save}) {
1612 my $uniq = $self->uniq_path; utf8::encode $uniq;
1613
1614 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1615 if $uniq;
1616 }
1617
1384 delete $cf::MAP{$self->path}; 1618 delete $cf::MAP{$self->path};
1619
1620 $self->clear;
1385 1621
1386 $_->clear_links_to ($self) for values %cf::MAP; 1622 $_->clear_links_to ($self) for values %cf::MAP;
1387 1623
1388 $self->unlink_save; 1624 $self->unlink_save;
1389 $self->destroy; 1625 $self->destroy;
1392my $nuke_counter = "aaaa"; 1628my $nuke_counter = "aaaa";
1393 1629
1394sub nuke { 1630sub nuke {
1395 my ($self) = @_; 1631 my ($self) = @_;
1396 1632
1633 delete $cf::MAP{$self->path};
1634
1635 $self->unlink_save;
1636
1637 bless $self, "cf::map";
1638 delete $self->{deny_reset};
1397 $self->{deny_save} = 1; 1639 $self->{deny_save} = 1;
1398 $self->reset_timeout (1); 1640 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++)); 1641 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1642
1643 $cf::MAP{$self->path} = $self;
1644
1400 $self->reset; # polite request, might not happen 1645 $self->reset; # polite request, might not happen
1401} 1646}
1402 1647
1403sub customise_for { 1648=item cf::map::unique_maps
1404 my ($map, $ob) = @_;
1405 1649
1406 if ($map->per_player) { 1650Returns an arrayref of paths of all shared maps that have
1407 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1651instantiated unique items. May block.
1408 }
1409 1652
1410 $map 1653=cut
1411}
1412 1654
1413sub emergency_save { 1655sub unique_maps() {
1414 local $cf::FREEZE = 1; 1656 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1657 or return;
1415 1658
1416 warn "enter emergency map save\n"; 1659 my @paths;
1417 1660
1418 cf::sync_job { 1661 for (@$files) {
1419 warn "begin emergency map save\n"; 1662 utf8::decode $_;
1420 $_->save for values %cf::MAP; 1663 next if /\.pst$/;
1664 next unless /^$PATH_SEP/o;
1665
1666 push @paths, cf::map::normalise $_;
1421 }; 1667 }
1422 1668
1423 warn "end emergency map save\n"; 1669 \@paths
1424} 1670}
1425 1671
1426package cf; 1672package cf;
1427 1673
1428=back 1674=back
1429 1675
1676=head3 cf::object
1677
1678=cut
1679
1680package cf::object;
1681
1682=over 4
1683
1684=item $ob->inv_recursive
1685
1686Returns the inventory of the object _and_ their inventories, recursively.
1687
1688=cut
1689
1690sub inv_recursive_;
1691sub inv_recursive_ {
1692 map { $_, inv_recursive_ $_->inv } @_
1693}
1694
1695sub inv_recursive {
1696 inv_recursive_ inv $_[0]
1697}
1698
1699package cf;
1700
1701=back
1430 1702
1431=head3 cf::object::player 1703=head3 cf::object::player
1432 1704
1433=over 4 1705=over 4
1434 1706
1474 1746
1475=item $player_object->enter_link 1747=item $player_object->enter_link
1476 1748
1477Freezes the player and moves him/her to a special map (C<{link}>). 1749Freezes the player and moves him/her to a special map (C<{link}>).
1478 1750
1479The player should be reaosnably safe there for short amounts of time. You 1751The player should be reasonably safe there for short amounts of time. You
1480I<MUST> call C<leave_link> as soon as possible, though. 1752I<MUST> call C<leave_link> as soon as possible, though.
1481 1753
1754Will never block.
1755
1482=item $player_object->leave_link ($map, $x, $y) 1756=item $player_object->leave_link ($map, $x, $y)
1483 1757
1484Moves the player out of the specila link map onto the given map. If the 1758Moves 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 1759map. 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, 1760to the location he/she was before the call to C<enter_link>, or, if that
1487to the emergency map position. 1761fails, to the emergency map position.
1488 1762
1489Might block. 1763Might block.
1490 1764
1491=cut 1765=cut
1766
1767sub link_map {
1768 unless ($LINK_MAP) {
1769 $LINK_MAP = cf::map::find "{link}"
1770 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1771 $LINK_MAP->load;
1772 }
1773
1774 $LINK_MAP
1775}
1492 1776
1493sub cf::object::player::enter_link { 1777sub cf::object::player::enter_link {
1494 my ($self) = @_; 1778 my ($self) = @_;
1495 1779
1496 $self->deactivate_recursive; 1780 $self->deactivate_recursive;
1497 1781
1498 return if $self->map == $LINK_MAP; 1782 return if UNIVERSAL::isa $self->map, "ext::map_link";
1499 1783
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1784 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map; 1785 if $self->map;
1502 1786
1503 $self->enter_map ($LINK_MAP, 20, 20); 1787 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1504} 1788}
1505 1789
1506sub cf::object::player::leave_link { 1790sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_; 1791 my ($self, $map, $x, $y) = @_;
1508 1792
1509 my $link_pos = delete $self->{_link_pos}; 1793 my $link_pos = delete $self->{_link_pos};
1510 1794
1511 unless ($map) { 1795 unless ($map) {
1512 # restore original map position 1796 # restore original map position
1513 ($map, $x, $y) = @{ $link_pos || [] }; 1797 ($map, $x, $y) = @{ $link_pos || [] };
1514 $map = cf::map::find_map $map; 1798 $map = cf::map::find $map;
1515 1799
1516 unless ($map) { 1800 unless ($map) {
1517 ($map, $x, $y) = @$EMERGENCY_POSITION; 1801 ($map, $x, $y) = @$EMERGENCY_POSITION;
1518 $map = cf::map::find_map $map 1802 $map = cf::map::find $map
1519 or die "FATAL: cannot load emergency map\n"; 1803 or die "FATAL: cannot load emergency map\n";
1520 } 1804 }
1521 } 1805 }
1522 1806
1523 ($x, $y) = (-1, -1) 1807 ($x, $y) = (-1, -1)
1526 # use -1 or undef as default coordinates, not 0, 0 1810 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y) 1811 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0; 1812 if $x <=0 && $y <= 0;
1529 1813
1530 $map->load; 1814 $map->load;
1815 $map->load_diag;
1531 1816
1817 return unless $self->contr->active;
1532 $self->activate_recursive; 1818 $self->activate_recursive;
1819
1820 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533 $self->enter_map ($map, $x, $y); 1821 $self->enter_map ($map, $x, $y);
1534} 1822}
1535 1823
1536cf::player->attach ( 1824cf::player->attach (
1537 on_logout => sub { 1825 on_logout => sub {
1549 1837
1550 # try to abort aborted map switching on player login :) 1838 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes 1839 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) { 1840 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link; 1841 $pl->ob->enter_link;
1554 cf::async { 1842 (async {
1843 $pl->ob->reply (undef,
1844 "There was an internal problem at your last logout, "
1845 . "the server will try to bring you to your intended destination in a second.",
1846 cf::NDI_RED);
1555 # 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
1556 # 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
1557 Coro::Timer::sleep 1; 1849 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link; 1850 $pl->ob->leave_link;
1559 }; 1851 })->prio (2);
1560 } 1852 }
1561 }, 1853 },
1562); 1854);
1563 1855
1564=item $player_object->goto_map ($path, $x, $y) 1856=item $player_object->goto ($path, $x, $y)
1565 1857
1566=cut 1858=cut
1567 1859
1568sub cf::object::player::goto_map { 1860sub cf::object::player::goto {
1569 my ($self, $path, $x, $y) = @_; 1861 my ($self, $path, $x, $y) = @_;
1570 1862
1571 $self->enter_link; 1863 $self->enter_link;
1572 1864
1573 (cf::async { 1865 (async {
1574 $path = new cf::path $path; 1866 my $map = eval {
1575
1576 my $map = cf::map::find_map $path->as_string; 1867 my $map = cf::map::find $path;
1577 $map = $map->customise_for ($self) if $map; 1868 $map = $map->customise_for ($self) if $map;
1578 1869 $map
1579# warn "entering ", $map->path, " at ($x, $y)\n" 1870 } or
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1871 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583 1872
1584 $self->leave_link ($map, $x, $y); 1873 $self->leave_link ($map, $x, $y);
1585 })->prio (1); 1874 })->prio (1);
1586} 1875}
1587 1876
1591 1880
1592sub parse_random_map_params { 1881sub parse_random_map_params {
1593 my ($spec) = @_; 1882 my ($spec) = @_;
1594 1883
1595 my $rmp = { # defaults 1884 my $rmp = { # defaults
1596 xsize => 10, 1885 xsize => (cf::rndm 15, 40),
1597 ysize => 10, 1886 ysize => (cf::rndm 15, 40),
1887 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1888 #layout => string,
1598 }; 1889 };
1599 1890
1600 for (split /\n/, $spec) { 1891 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2; 1892 my ($k, $v) = split /\s+/, $_, 2;
1602 1893
1606 $rmp 1897 $rmp
1607} 1898}
1608 1899
1609sub prepare_random_map { 1900sub prepare_random_map {
1610 my ($exit) = @_; 1901 my ($exit) = @_;
1902
1903 my $guard = cf::lock_acquire "exit_prepare:$exit";
1611 1904
1612 # all this does is basically replace the /! path by 1905 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed 1906 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object 1907 # that depends on the exit object
1615 1908
1616 my $rmp = parse_random_map_params $exit->msg; 1909 my $rmp = parse_random_map_params $exit->msg;
1617 1910
1618 if ($exit->map) { 1911 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name; 1912 $rmp->{region} = $exit->region->name;
1620 $rmp->{origin_map} = $exit->map->path; 1913 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x; 1914 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y; 1915 $rmp->{origin_y} = $exit->y;
1623 } 1916 }
1624 1917
1625 $rmp->{random_seed} ||= $exit->random_seed; 1918 $rmp->{random_seed} ||= $exit->random_seed;
1626 1919
1627 my $data = cf::to_json $rmp; 1920 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data; 1921 my $md5 = Digest::MD5::md5_hex $data;
1922 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629 1923
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1924 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0; 1925 aio_write $fh, 0, (length $data), $data, 0;
1926 undef $fh;
1927 aio_rename "$meta~", $meta;
1632 1928
1633 $exit->slaying ("?random/$md5"); 1929 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef); 1930 $exit->msg (undef);
1635 } 1931 }
1636} 1932}
1638sub cf::object::player::enter_exit { 1934sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_; 1935 my ($self, $exit) = @_;
1640 1936
1641 return unless $self->type == cf::PLAYER; 1937 return unless $self->type == cf::PLAYER;
1642 1938
1939 if ($exit->slaying eq "/!") {
1940 #TODO: this should de-fi-ni-te-ly not be a sync-job
1941 cf::sync_job { prepare_random_map $exit };
1942 }
1943
1944 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945 my $hp = $exit->stats->hp;
1946 my $sp = $exit->stats->sp;
1947
1643 $self->enter_link; 1948 $self->enter_link;
1644 1949
1645 (cf::async { 1950 (async {
1951 $self->deactivate_recursive; # just to be sure
1646 unless (eval { 1952 unless (eval {
1647 prepare_random_map $exit 1953 $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 1954
1653 1; 1955 1;
1654 }) { 1956 }) {
1655 $self->message ("Something went wrong deep within the crossfire server. " 1957 $self->message ("Something went wrong deep within the crossfire server. "
1656 . "I'll try to bring you back to the map you were before. " 1958 . "I'll try to bring you back to the map you were before. "
1657 . "Please report this to the dungeon master", 1959 . "Please report this to the dungeon master!",
1658 cf::NDI_UNIQUE | cf::NDI_RED); 1960 cf::NDI_UNIQUE | cf::NDI_RED);
1659 1961
1660 warn "ERROR in enter_exit: $@"; 1962 warn "ERROR in enter_exit: $@";
1661 $self->leave_link; 1963 $self->leave_link;
1662 } 1964 }
1714 my ($ns, $msg) = @_; 2016 my ($ns, $msg) = @_;
1715 2017
1716 # this weird shuffling is so that direct followup queries 2018 # this weird shuffling is so that direct followup queries
1717 # get handled first 2019 # get handled first
1718 my $queue = delete $ns->{query_queue} 2020 my $queue = delete $ns->{query_queue}
1719 or return; # be conservative, not sure how that cna happen, but we saw a crash here 2021 or return; # be conservative, not sure how that can happen, but we saw a crash here
1720 2022
1721 (shift @$queue)->[1]->($msg); 2023 (shift @$queue)->[1]->($msg);
2024 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722 2025
1723 push @{ $ns->{query_queue} }, @$queue; 2026 push @{ $ns->{query_queue} }, @$queue;
1724 2027
1725 if (@{ $ns->{query_queue} } == @$queue) { 2028 if (@{ $ns->{query_queue} } == @$queue) {
1726 if (@$queue) { 2029 if (@$queue) {
1730 } 2033 }
1731 } 2034 }
1732 }, 2035 },
1733); 2036);
1734 2037
1735=item $client->coro (\&cb) 2038=item $client->async (\&cb)
1736 2039
1737Create a new coroutine, running the specified callback. The coroutine will 2040Create a new coroutine, running the specified callback. The coroutine will
1738be automatically cancelled when the client gets destroyed (e.g. on logout, 2041be automatically cancelled when the client gets destroyed (e.g. on logout,
1739or loss of connection). 2042or loss of connection).
1740 2043
1741=cut 2044=cut
1742 2045
1743sub cf::client::coro { 2046sub cf::client::async {
1744 my ($self, $cb) = @_; 2047 my ($self, $cb) = @_;
1745 2048
1746 my $coro = &cf::async ($cb); 2049 my $coro = &Coro::async ($cb);
1747 2050
1748 $coro->on_destroy (sub { 2051 $coro->on_destroy (sub {
1749 delete $self->{_coro}{$coro+0}; 2052 delete $self->{_coro}{$coro+0};
1750 }); 2053 });
1751 2054
1887The parameter C<$family> should best start with the name of the extension 2190The parameter C<$family> should best start with the name of the extension
1888using it, it should be unique. 2191using it, it should be unique.
1889 2192
1890=over 4 2193=over 4
1891 2194
1892=item $hashref = cf::db_get $family
1893
1894Return a hashref for use by the extension C<$family>, which can be
1895modified. After modifications, you have to call C<cf::db_dirty> or
1896C<cf::db_sync>.
1897
1898=item $value = cf::db_get $family => $key 2195=item $value = cf::db_get $family => $key
1899 2196
1900Returns a single value from the database 2197Returns a single value from the database.
1901
1902=item cf::db_put $family => $hashref
1903
1904Stores the given family hashref into the database. Updates are delayed, if
1905you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906 2198
1907=item cf::db_put $family => $key => $value 2199=item cf::db_put $family => $key => $value
1908 2200
1909Stores the given C<$value> in the family hash. Updates are delayed, if you 2201Stores the given C<$value> in the family.
1910want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912=item cf::db_dirty
1913
1914Marks the database as dirty, to be updated at a later time.
1915
1916=item cf::db_sync
1917
1918Immediately write the database to disk I<if it is dirty>.
1919 2202
1920=cut 2203=cut
1921 2204
1922our $DB; 2205our $DB;
1923 2206
1924{ 2207sub db_init {
2208 unless ($DB) {
2209 $DB = BDB::db_create $DB_ENV;
2210
2211 cf::sync_job {
2212 eval {
2213 $DB->set_flags (BDB::CHKSUM);
2214
2215 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217 cf::cleanup "db_open(db): $!" if $!;
2218 };
2219 cf::cleanup "db_open(db): $@" if $@;
2220 };
2221
1925 my $path = cf::localdir . "/database.pst"; 2222 my $path = cf::localdir . "/database.pst";
2223 if (stat $path) {
2224 cf::sync_job {
2225 my $pst = Storable::retrieve $path;
1926 2226
1927 sub db_load() { 2227 cf::db_put (board => data => $pst->{board});
1928 $DB = stat $path ? Storable::retrieve $path : { }; 2228 cf::db_put (guildrules => data => $pst->{guildrules});
1929 } 2229 cf::db_put (rent => balance => $pst->{rent}{balance});
2230 BDB::db_env_txn_checkpoint $DB_ENV;
1930 2231
1931 my $pid; 2232 unlink $path;
1932
1933 sub db_save() {
1934 waitpid $pid, 0 if $pid;
1935 if (0 == ($pid = fork)) {
1936 $DB->{_meta}{version} = 1;
1937 Storable::nstore $DB, "$path~";
1938 rename "$path~", $path;
1939 cf::_exit 0 if defined $pid;
1940 } 2233 };
1941 }
1942
1943 my $dirty;
1944
1945 sub db_sync() {
1946 db_save if $dirty;
1947 undef $dirty;
1948 }
1949
1950 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951 db_sync;
1952 });
1953
1954 sub db_dirty() {
1955 $dirty = 1;
1956 $idle->start;
1957 }
1958
1959 sub db_get($;$) {
1960 @_ >= 2
1961 ? $DB->{$_[0]}{$_[1]}
1962 : ($DB->{$_[0]} ||= { })
1963 }
1964
1965 sub db_put($$;$) {
1966 if (@_ >= 3) {
1967 $DB->{$_[0]}{$_[1]} = $_[2];
1968 } else {
1969 $DB->{$_[0]} = $_[1];
1970 }
1971 db_dirty;
1972 }
1973
1974 cf::global->attach (
1975 prio => 10000,
1976 on_cleanup => sub {
1977 db_sync;
1978 }, 2234 }
1979 ); 2235 }
2236}
2237
2238sub db_get($$) {
2239 my $key = "$_[0]/$_[1]";
2240
2241 cf::sync_job {
2242 BDB::db_get $DB, undef, $key, my $data;
2243
2244 $! ? ()
2245 : Compress::LZF::sthaw $data
2246 }
2247}
2248
2249sub db_put($$$) {
2250 BDB::dbreq_pri 4;
2251 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1980} 2252}
1981 2253
1982############################################################################# 2254#############################################################################
1983# the server's main() 2255# the server's init and main functions
2256
2257sub init_resources {
2258 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2259 or die "unable to load regions file\n";#d#
2260}
1984 2261
1985sub cfg_load { 2262sub cfg_load {
1986 open my $fh, "<:utf8", cf::confdir . "/config" 2263 open my $fh, "<:utf8", cf::confdir . "/config"
1987 or return; 2264 or return;
1988 2265
1989 local $/; 2266 local $/;
1990 *CFG = YAML::Syck::Load <$fh>; 2267 *CFG = YAML::Syck::Load <$fh>;
2268
2269 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2270
2271 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2272 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2273
2274 if (exists $CFG{mlockall}) {
2275 eval {
2276 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2277 and die "WARNING: m(un)lockall failed: $!\n";
2278 };
2279 warn $@ if $@;
2280 }
2281}
2282
2283sub init {
2284 init_resources;
1991} 2285}
1992 2286
1993sub main { 2287sub main {
1994 # we must not ever block the main coroutine 2288 # we must not ever block the main coroutine
1995 local $Coro::idle = sub { 2289 local $Coro::idle = sub {
1996 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2290 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997 (Coro::unblock_sub { 2291 (async {
1998 Event::one_event; 2292 Event::one_event;
1999 })->(); 2293 })->prio (Coro::PRIO_MAX);
2000 }; 2294 };
2001 2295
2002 cfg_load; 2296 cfg_load;
2003 db_load; 2297 db_init;
2004 load_extensions; 2298 load_extensions;
2299
2300 $TICK_WATCHER->start;
2005 Event::loop; 2301 Event::loop;
2006} 2302}
2007 2303
2008############################################################################# 2304#############################################################################
2009# initialisation 2305# initialisation and cleanup
2306
2307# install some emergency cleanup handlers
2308BEGIN {
2309 for my $signal (qw(INT HUP TERM)) {
2310 Event->signal (
2311 reentrant => 0,
2312 data => WF_AUTOCANCEL,
2313 signal => $signal,
2314 prio => 0,
2315 cb => sub {
2316 cf::cleanup "SIG$signal";
2317 },
2318 );
2319 }
2320}
2321
2322sub emergency_save() {
2323 my $freeze_guard = cf::freeze_mainloop;
2324
2325 warn "enter emergency perl save\n";
2326
2327 cf::sync_job {
2328 # use a peculiar iteration method to avoid tripping on perl
2329 # refcount bugs in for. also avoids problems with players
2330 # and maps saved/destroyed asynchronously.
2331 warn "begin emergency player save\n";
2332 for my $login (keys %cf::PLAYER) {
2333 my $pl = $cf::PLAYER{$login} or next;
2334 $pl->valid or next;
2335 $pl->save;
2336 }
2337 warn "end emergency player save\n";
2338
2339 warn "begin emergency map save\n";
2340 for my $path (keys %cf::MAP) {
2341 my $map = $cf::MAP{$path} or next;
2342 $map->valid or next;
2343 $map->save;
2344 }
2345 warn "end emergency map save\n";
2346
2347 warn "begin emergency database checkpoint\n";
2348 BDB::db_env_txn_checkpoint $DB_ENV;
2349 warn "end emergency database checkpoint\n";
2350 };
2351
2352 warn "leave emergency perl save\n";
2353}
2354
2355sub post_cleanup {
2356 my ($make_core) = @_;
2357
2358 warn Carp::longmess "post_cleanup backtrace"
2359 if $make_core;
2360}
2010 2361
2011sub reload() { 2362sub reload() {
2012 # can/must only be called in main 2363 # can/must only be called in main
2013 if ($Coro::current != $Coro::main) { 2364 if ($Coro::current != $Coro::main) {
2014 warn "can only reload from main coroutine\n"; 2365 warn "can only reload from main coroutine";
2015 return; 2366 return;
2016 } 2367 }
2017 2368
2018 warn "reloading..."; 2369 warn "reloading...";
2019 2370
2020 local $FREEZE = 1; 2371 warn "entering sync_job";
2372
2373 cf::sync_job {
2374 cf::write_runtime; # external watchdog should not bark
2021 cf::emergency_save; 2375 cf::emergency_save;
2376 cf::write_runtime; # external watchdog should not bark
2022 2377
2023 eval { 2378 warn "syncing database to disk";
2379 BDB::db_env_txn_checkpoint $DB_ENV;
2380
2024 # if anything goes wrong in here, we should simply crash as we already saved 2381 # if anything goes wrong in here, we should simply crash as we already saved
2025 2382
2026 # cancel all watchers 2383 warn "cancelling all WF_AUTOCANCEL watchers";
2027 for (Event::all_watchers) { 2384 for (Event::all_watchers) {
2028 $_->cancel if $_->data & WF_AUTOCANCEL; 2385 $_->cancel if $_->data & WF_AUTOCANCEL;
2029 } 2386 }
2030 2387
2388 warn "flushing outstanding aio requests";
2389 for (;;) {
2390 BDB::flush;
2391 IO::AIO::flush;
2392 Coro::cede;
2393 last unless IO::AIO::nreqs || BDB::nreqs;
2394 warn "iterate...";
2395 }
2396
2031 # cancel all extension coros 2397 warn "cancelling all extension coros";
2032 $_->cancel for values %EXT_CORO; 2398 $_->cancel for values %EXT_CORO;
2033 %EXT_CORO = (); 2399 %EXT_CORO = ();
2034 2400
2035 # unload all extensions 2401 warn "removing commands";
2036 for (@exts) { 2402 %COMMAND = ();
2403
2404 warn "removing ext commands";
2405 %EXTCMD = ();
2406
2407 warn "unloading/nuking all extensions";
2408 for my $pkg (@EXTS) {
2037 warn "unloading <$_>"; 2409 warn "... unloading $pkg";
2038 unload_extension $_; 2410
2411 if (my $cb = $pkg->can ("unload")) {
2412 eval {
2413 $cb->($pkg);
2414 1
2415 } or warn "$pkg unloaded, but with errors: $@";
2039 } 2416 }
2040 2417
2418 warn "... nuking $pkg";
2419 Symbol::delete_package $pkg;
2420 }
2421
2041 # unload all modules loaded from $LIBDIR 2422 warn "unloading all perl modules loaded from $LIBDIR";
2042 while (my ($k, $v) = each %INC) { 2423 while (my ($k, $v) = each %INC) {
2043 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2424 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044 2425
2045 warn "removing <$k>"; 2426 warn "... unloading $k";
2046 delete $INC{$k}; 2427 delete $INC{$k};
2047 2428
2048 $k =~ s/\.pm$//; 2429 $k =~ s/\.pm$//;
2049 $k =~ s/\//::/g; 2430 $k =~ s/\//::/g;
2050 2431
2053 } 2434 }
2054 2435
2055 Symbol::delete_package $k; 2436 Symbol::delete_package $k;
2056 } 2437 }
2057 2438
2058 # sync database to disk
2059 cf::db_sync;
2060 IO::AIO::flush;
2061
2062 # get rid of safe::, as good as possible 2439 warn "getting rid of safe::, as good as possible";
2063 Symbol::delete_package "safe::$_" 2440 Symbol::delete_package "safe::$_"
2064 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2441 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065 2442
2066 # remove register_script_function callbacks
2067 # TODO
2068
2069 # unload cf.pm "a bit" 2443 warn "unloading cf.pm \"a bit\"";
2070 delete $INC{"cf.pm"}; 2444 delete $INC{"cf.pm"};
2071 2445
2072 # don't, removes xs symbols, too, 2446 # don't, removes xs symbols, too,
2073 # and global variables created in xs 2447 # and global variables created in xs
2074 #Symbol::delete_package __PACKAGE__; 2448 #Symbol::delete_package __PACKAGE__;
2075 2449
2076 # reload cf.pm 2450 warn "unload completed, starting to reload now";
2451
2077 warn "reloading cf.pm"; 2452 warn "reloading cf.pm";
2078 require cf; 2453 require cf;
2079 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2454 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080 2455
2081 # load config and database again 2456 warn "loading config and database again";
2082 cf::cfg_load; 2457 cf::cfg_load;
2083 cf::db_load;
2084 2458
2085 # load extensions
2086 warn "load extensions"; 2459 warn "loading extensions";
2087 cf::load_extensions; 2460 cf::load_extensions;
2088 2461
2089 # reattach attachments to objects 2462 warn "reattaching attachments to objects/players";
2090 warn "reattach";
2091 _global_reattach; 2463 _global_reattach;
2092 }; 2464 warn "reattaching attachments to maps";
2465 reattach $_ for values %MAP;
2093 2466
2094 if ($@) { 2467 warn "loading reloadable resources";
2468 init_resources;
2469
2470 warn "leaving sync_job";
2471
2472 1
2473 } or do {
2095 warn $@; 2474 warn $@;
2096 warn "error while reloading, exiting."; 2475 warn "error while reloading, exiting.";
2097 exit 1; 2476 exit 1;
2098 } 2477 };
2099 2478
2100 warn "reloaded successfully"; 2479 warn "reloaded";
2101}; 2480};
2102 2481
2103############################################################################# 2482our $RELOAD_WATCHER; # used only during reload
2104
2105unless ($LINK_MAP) {
2106 $LINK_MAP = cf::map::new;
2107
2108 $LINK_MAP->width (41);
2109 $LINK_MAP->height (41);
2110 $LINK_MAP->alloc;
2111 $LINK_MAP->path ("{link}");
2112 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115 # dirty hack because... archetypes are not yet loaded
2116 Event->timer (
2117 after => 2,
2118 cb => sub {
2119 $_[0]->w->cancel;
2120
2121 # provide some exits "home"
2122 my $exit = cf::object::new "exit";
2123
2124 $exit->slaying ($EMERGENCY_POSITION->[0]);
2125 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128 $LINK_MAP->insert ($exit->clone, 19, 19);
2129 $LINK_MAP->insert ($exit->clone, 19, 20);
2130 $LINK_MAP->insert ($exit->clone, 19, 21);
2131 $LINK_MAP->insert ($exit->clone, 20, 19);
2132 $LINK_MAP->insert ($exit->clone, 20, 21);
2133 $LINK_MAP->insert ($exit->clone, 21, 19);
2134 $LINK_MAP->insert ($exit->clone, 21, 20);
2135 $LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137 $exit->destroy;
2138 });
2139
2140 $LINK_MAP->{deny_save} = 1;
2141 $LINK_MAP->{deny_reset} = 1;
2142
2143 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144}
2145
2146register "<global>", __PACKAGE__;
2147 2483
2148register_command "reload" => sub { 2484register_command "reload" => sub {
2149 my ($who, $arg) = @_; 2485 my ($who, $arg) = @_;
2150 2486
2151 if ($who->flag (FLAG_WIZ)) { 2487 if ($who->flag (FLAG_WIZ)) {
2152 $who->message ("start of reload."); 2488 $who->message ("reloading server.");
2489
2490 # doing reload synchronously and two reloads happen back-to-back,
2491 # coro crashes during coro_state_free->destroy here.
2492
2493 $RELOAD_WATCHER ||= Event->timer (
2494 reentrant => 0,
2495 after => 0,
2496 data => WF_AUTOCANCEL,
2497 cb => sub {
2153 reload; 2498 reload;
2154 $who->message ("end of reload."); 2499 undef $RELOAD_WATCHER;
2500 },
2501 );
2155 } 2502 }
2156}; 2503};
2157 2504
2158unshift @INC, $LIBDIR; 2505unshift @INC, $LIBDIR;
2506
2507my $bug_warning = 0;
2159 2508
2160$TICK_WATCHER = Event->timer ( 2509$TICK_WATCHER = Event->timer (
2161 reentrant => 0, 2510 reentrant => 0,
2511 parked => 1,
2162 prio => 0, 2512 prio => 0,
2163 at => $NEXT_TICK || $TICK, 2513 at => $NEXT_TICK || $TICK,
2164 data => WF_AUTOCANCEL, 2514 data => WF_AUTOCANCEL,
2165 cb => sub { 2515 cb => sub {
2166 unless ($FREEZE) { 2516 if ($Coro::current != $Coro::main) {
2517 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518 unless ++$bug_warning > 10;
2519 return;
2520 }
2521
2522 $NOW = Event::time;
2523
2167 cf::server_tick; # one server iteration 2524 cf::server_tick; # one server iteration
2168 $RUNTIME += $TICK; 2525 $RUNTIME += $TICK;
2169 }
2170
2171 $NEXT_TICK += $TICK; 2526 $NEXT_TICK += $TICK;
2527
2528 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529 $NEXT_RUNTIME_WRITE = $NOW + 10;
2530 Coro::async_pool {
2531 write_runtime
2532 or warn "ERROR: unable to write runtime file: $!";
2533 };
2534 }
2535
2536 $WAIT_FOR_TICK->broadcast;
2537 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539# my $AFTER = Event::time;
2540# warn $AFTER - $NOW;#d#
2172 2541
2173 # if we are delayed by four ticks or more, skip them all 2542 # if we are delayed by four ticks or more, skip them all
2174 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2543 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2175 2544
2176 $TICK_WATCHER->at ($NEXT_TICK); 2545 $TICK_WATCHER->at ($NEXT_TICK);
2177 $TICK_WATCHER->start; 2546 $TICK_WATCHER->start;
2178 }, 2547 },
2179); 2548);
2180 2549
2550{
2181IO::AIO::max_poll_time $TICK * 0.2; 2551 BDB::max_poll_time $TICK * 0.1;
2182 2552 $BDB_POLL_WATCHER = Event->io (
2183Event->io ( 2553 reentrant => 0,
2184 fd => IO::AIO::poll_fileno, 2554 fd => BDB::poll_fileno,
2185 poll => 'r', 2555 poll => 'r',
2186 prio => 5, 2556 prio => 0,
2187 data => WF_AUTOCANCEL,
2188 cb => \&IO::AIO::poll_cb,
2189);
2190
2191Event->timer (
2192 data => WF_AUTOCANCEL, 2557 data => WF_AUTOCANCEL,
2193 after => 0, 2558 cb => \&BDB::poll_cb,
2194 interval => 10, 2559 );
2195 cb => sub { 2560 BDB::min_parallel 8;
2196 (Coro::unblock_sub { 2561
2197 write_runtime 2562 BDB::set_sync_prepare {
2198 or warn "ERROR: unable to write runtime file: $!"; 2563 my $status;
2564 my $current = $Coro::current;
2565 (
2566 sub {
2567 $status = $!;
2568 $current->ready; undef $current;
2569 },
2570 sub {
2571 Coro::schedule while defined $current;
2572 $! = $status;
2573 },
2574 )
2575 };
2576
2577 unless ($DB_ENV) {
2578 $DB_ENV = BDB::db_env_create;
2579
2580 cf::sync_job {
2581 eval {
2582 BDB::db_env_open
2583 $DB_ENV,
2584 $BDB_ENV_DIR,
2585 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587 0666;
2588
2589 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2590
2591 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592 $DB_ENV->set_lk_detect;
2593 };
2594
2595 cf::cleanup "db_env_open(db): $@" if $@;
2199 })->(); 2596 };
2200 }, 2597 }
2201); 2598}
2599
2600{
2601 IO::AIO::min_parallel 8;
2602
2603 undef $Coro::AIO::WATCHER;
2604 IO::AIO::max_poll_time $TICK * 0.1;
2605 $AIO_POLL_WATCHER = Event->io (
2606 reentrant => 0,
2607 data => WF_AUTOCANCEL,
2608 fd => IO::AIO::poll_fileno,
2609 poll => 'r',
2610 prio => 6,
2611 cb => \&IO::AIO::poll_cb,
2612 );
2613}
2202 2614
2203END { cf::emergency_save } 2615END { cf::emergency_save }
2204 2616
22051 26171
2206 2618

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