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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 1.221 by pippijn, Fri Mar 2 13:32:52 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 $pl->kick
1060
1061Kicks a player out of the game. This destroys the connection.
1062
1063=cut
1064
1065sub kick {
1066 my ($pl, $kicker) = @_;
1067
1068 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1069 $pl->killer ("kicked");
1070 $pl->ns->destroy;
1071}
1072
1073=item cf::player::list_logins
1074
1075Returns am arrayref of all valid playernames in the system, can take a
1076while and may block, so not sync_job-capable, ever.
1077
1078=cut
1079
1080sub list_logins {
1081 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1082 or return [];
1083
1084 my @logins;
1085
1086 for my $login (@$dirs) {
1087 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1088 aio_read $fh, 0, 512, my $buf, 0 or next;
1089 $buf !~ /^password -------------$/m or next; # official not-valid tag
1090
1091 utf8::decode $login;
1092 push @logins, $login;
1093 }
1094
1095 \@logins
1096}
1097
1098=item $player->maps
1099
1100Returns an arrayref of map paths that are private for this
1101player. May block.
1102
1103=cut
1104
1105sub maps($) {
1106 my ($pl) = @_;
1107
1108 $pl = ref $pl ? $pl->ob->name : $pl;
1109
1110 my $files = aio_readdir playerdir $pl
1111 or return;
1112
1113 my @paths;
1114
1115 for (@$files) {
1116 utf8::decode $_;
1117 next if /\.(?:pl|pst)$/;
1118 next unless /^$PATH_SEP/o;
1119
1120 push @paths, cf::map::normalise "~$pl/$_";
1121 }
1122
1123 \@paths
1112} 1124}
1113 1125
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1126=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1127
1116Sends an ext reply to the player. 1128Sends an ext reply to the player.
1117 1129
1118=cut 1130=cut
1119 1131
1120sub cf::player::ext_reply($$$%) { 1132sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1133 my ($self, $id, %msg) = @_;
1122 1134
1123 $msg{msgid} = $id; 1135 $msg{msgid} = $id;
1124 1136
1125 $self->send ("ext " . to_json \%msg); 1137 $self->send ("ext " . cf::to_json \%msg);
1126} 1138}
1139
1140package cf;
1127 1141
1128=back 1142=back
1129 1143
1130 1144
1131=head3 cf::map 1145=head3 cf::map
1137package cf::map; 1151package cf::map;
1138 1152
1139use Fcntl; 1153use Fcntl;
1140use Coro::AIO; 1154use Coro::AIO;
1141 1155
1156use overload
1157 '""' => \&as_string,
1158 fallback => 1;
1159
1142our $MAX_RESET = 7200; 1160our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1161our $DEFAULT_RESET = 3000;
1144 1162
1145sub generate_random_map { 1163sub generate_random_map {
1146 my ($path, $rmp) = @_; 1164 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1165 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1166 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1167 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1168 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1169 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1170 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1171 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1172 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1173 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1174 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1175 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1176 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (cf::region::find $rmp->{region}) 1177 (cf::region::find $rmp->{region}), $rmp->{custom}
1178 )
1179}
1180
1181=item cf::map->register ($regex, $prio)
1182
1183Register a handler for the map path matching the given regex at the
1184givne priority (higher is better, built-in handlers have priority 0, the
1185default).
1186
1187=cut
1188
1189sub register {
1190 my (undef, $regex, $prio) = @_;
1191 my $pkg = caller;
1192
1193 no strict;
1194 push @{"$pkg\::ISA"}, __PACKAGE__;
1195
1196 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1197}
1198
1199# also paths starting with '/'
1200$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1201
1202sub thawer_merge {
1203 my ($self, $merge) = @_;
1204
1205 # we have to keep some variables in memory intact
1206 local $self->{path};
1207 local $self->{load_path};
1208 local $self->{deny_save};
1209 local $self->{deny_reset};
1210
1211 $self->SUPER::thawer_merge ($merge);
1212}
1213
1214sub normalise {
1215 my ($path, $base) = @_;
1216
1217 $path = "$path"; # make sure its a string
1218
1219 $path =~ s/\.map$//;
1220
1221 # map plan:
1222 #
1223 # /! non-realised random map exit (special hack!)
1224 # {... are special paths that are not being touched
1225 # ?xxx/... are special absolute paths
1226 # ?random/... random maps
1227 # /... normal maps
1228 # ~user/... per-player map of a specific user
1229
1230 $path =~ s/$PATH_SEP/\//go;
1231
1232 # treat it as relative path if it starts with
1233 # something that looks reasonable
1234 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1235 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1236
1237 $base =~ s{[^/]+/?$}{};
1238 $path = "$base/$path";
1239 }
1240
1241 for ($path) {
1242 redo if s{//}{/};
1243 redo if s{/\.?/}{/};
1244 redo if s{/[^/]+/\.\./}{/};
1245 }
1246
1247 $path
1248}
1249
1250sub new_from_path {
1251 my (undef, $path, $base) = @_;
1252
1253 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1254
1255 $path = normalise $path, $base;
1256
1257 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1258 if ($path =~ $EXT_MAP{$pkg}[1]) {
1259 my $self = bless cf::map::new, $pkg;
1260 $self->{path} = $path; $self->path ($path);
1261 $self->init; # pass $1 etc.
1262 return $self;
1263 }
1264 }
1265
1266 Carp::carp "unable to resolve path '$path' (base '$base').";
1267 ()
1268}
1269
1270sub init {
1271 my ($self) = @_;
1272
1273 $self
1274}
1275
1276sub as_string {
1277 my ($self) = @_;
1278
1279 "$self->{path}"
1280}
1281
1282# the displayed name, this is a one way mapping
1283sub visible_name {
1284 &as_string
1285}
1286
1287# the original (read-only) location
1288sub load_path {
1289 my ($self) = @_;
1290
1291 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1292}
1293
1294# the temporary/swap location
1295sub save_path {
1296 my ($self) = @_;
1297
1298 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1299 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1300}
1301
1302# the unique path, undef == no special unique path
1303sub uniq_path {
1304 my ($self) = @_;
1305
1306 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1307 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1162} 1308}
1163 1309
1164# and all this just because we cannot iterate over 1310# and all this just because we cannot iterate over
1165# all maps in C++... 1311# all maps in C++...
1166sub change_all_map_light { 1312sub change_all_map_light {
1168 1314
1169 $_->change_map_light ($change) 1315 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1316 for grep $_->outdoor, values %cf::MAP;
1171} 1317}
1172 1318
1319sub unlink_save {
1320 my ($self) = @_;
1321
1322 utf8::encode (my $save = $self->save_path);
1323 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1324 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1325}
1326
1173sub try_load_header($) { 1327sub load_header_from($) {
1174 my ($path) = @_; 1328 my ($self, $path) = @_;
1175 1329
1176 utf8::encode $path; 1330 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1331 #aio_open $path, O_RDONLY, 0
1332 # or return;
1333
1334 $self->_load_header ($path)
1178 or return; 1335 or return;
1179 1336
1180 my $map = cf::map::new 1337 $self->{load_path} = $path;
1338
1339 1
1340}
1341
1342sub load_header_orig {
1343 my ($self) = @_;
1344
1345 $self->load_header_from ($self->load_path)
1346}
1347
1348sub load_header_temp {
1349 my ($self) = @_;
1350
1351 $self->load_header_from ($self->save_path)
1352}
1353
1354sub prepare_temp {
1355 my ($self) = @_;
1356
1357 $self->last_access ((delete $self->{last_access})
1358 || $cf::RUNTIME); #d#
1359 # safety
1360 $self->{instantiate_time} = $cf::RUNTIME
1361 if $self->{instantiate_time} > $cf::RUNTIME;
1362}
1363
1364sub prepare_orig {
1365 my ($self) = @_;
1366
1367 $self->{load_original} = 1;
1368 $self->{instantiate_time} = $cf::RUNTIME;
1369 $self->last_access ($cf::RUNTIME);
1370 $self->instantiate;
1371}
1372
1373sub load_header {
1374 my ($self) = @_;
1375
1376 if ($self->load_header_temp) {
1377 $self->prepare_temp;
1378 } else {
1379 $self->load_header_orig
1181 or return; 1380 or return;
1381 $self->prepare_orig;
1382 }
1182 1383
1183 $map->load_header ($path) 1384 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1385}
1190 1386
1191sub find_map; 1387sub find;
1192sub find_map { 1388sub find {
1193 my ($path, $origin) = @_; 1389 my ($path, $origin) = @_;
1194 1390
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1391 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1392
1200 cf::lock_wait "map_find:$key"; 1393 cf::lock_wait "map_find:$path";
1201 1394
1202 $cf::MAP{$key} || do { 1395 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1396 my $guard = cf::lock_acquire "map_find:$path";
1204 1397 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; 1398 or return;
1220 1399
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; 1400 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1401
1234 if ($map->should_reset) { 1402 $map->load_header
1403 or return;
1404
1405 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1406 # doing this can freeze the server in a sync job, obviously
1407 #$cf::WAIT_FOR_TICK->wait;
1235 $map->reset; 1408 $map->reset;
1236 undef $guard; 1409 undef $guard;
1237 $map = find_map $path 1410 return find $path;
1238 or return;
1239 } 1411 }
1240 1412
1241 $cf::MAP{$key} = $map 1413 $cf::MAP{$path} = $map
1242 } 1414 }
1243} 1415}
1416
1417sub pre_load { }
1418sub post_load { }
1244 1419
1245sub load { 1420sub load {
1246 my ($self) = @_; 1421 my ($self) = @_;
1247 1422
1423 local $self->{deny_reset} = 1; # loading can take a long time
1424
1248 my $path = $self->{path}; 1425 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1426 my $guard = cf::lock_acquire "map_load:$path";
1250 1427
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1428 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1429
1253 $self->in_memory (cf::MAP_LOADING); 1430 $self->in_memory (cf::MAP_LOADING);
1254 1431
1255 $self->alloc; 1432 $self->alloc;
1433
1434 $self->pre_load;
1435
1256 $self->load_objects ($self->{load_path}, 1) 1436 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1437 or return;
1258 1438
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1439 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1440 if delete $self->{load_original};
1261 1441
1262 if (my $uniq = $path->uniq_path) { 1442 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1443 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1444 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1445 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1446 $self->_load_objects ($uniq, 0);
1267 } 1447 }
1268 } 1448 }
1449
1450 Coro::cede;
1269 1451
1270 # now do the right thing for maps 1452 # now do the right thing for maps
1271 $self->link_multipart_objects; 1453 $self->link_multipart_objects;
1272 1454
1273 if ($self->{path}->is_style_map) { 1455 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1456 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1457 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1458 $self->update_buttons;
1459 Coro::cede;
1280 $self->set_darkness_map; 1460 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1461 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1462 unless $self->difficulty;
1463 Coro::cede;
1283 $self->activate; 1464 $self->activate;
1284 } 1465 }
1285 1466
1467 $self->post_load;
1468
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1469 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1470}
1288 1471
1289sub load_map_sync { 1472sub customise_for {
1473 my ($self, $ob) = @_;
1474
1475 return find "~" . $ob->name . "/" . $self->{path}
1476 if $self->per_player;
1477
1478 $self
1479}
1480
1481# find and load all maps in the 3x3 area around a map
1482sub load_diag {
1483 my ($map) = @_;
1484
1485 my @diag; # diagonal neighbours
1486
1487 for (0 .. 3) {
1488 my $neigh = $map->tile_path ($_)
1489 or next;
1490 $neigh = find $neigh, $map
1491 or next;
1492 $neigh->load;
1493
1494 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1495 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1496 }
1497
1498 for (@diag) {
1499 my $neigh = find @$_
1500 or next;
1501 $neigh->load;
1502 }
1503}
1504
1505sub find_sync {
1290 my ($path, $origin) = @_; 1506 my ($path, $origin) = @_;
1291 1507
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1508 cf::sync_job { find $path, $origin }
1509}
1293 1510
1294 cf::sync_job { 1511sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1512 my ($map) = @_;
1296 or return; 1513
1514 cf::sync_job { $map->load };
1515}
1516
1517our %MAP_PREFETCH;
1518our $MAP_PREFETCHER = undef;
1519
1520sub find_async {
1521 my ($path, $origin) = @_;
1522
1523 $path = normalise $path, $origin && $origin->{path};
1524
1525 if (my $map = $cf::MAP{$path}) {
1526 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1527 }
1528
1529 undef $MAP_PREFETCH{$path};
1530 $MAP_PREFETCHER ||= cf::async {
1531 while (%MAP_PREFETCH) {
1532 for my $path (keys %MAP_PREFETCH) {
1533 my $map = find $path
1534 or next;
1297 $map->load; 1535 $map->load;
1298 $map 1536
1537 delete $MAP_PREFETCH{$path};
1538 }
1539 }
1540 undef $MAP_PREFETCHER;
1299 } 1541 };
1542 $MAP_PREFETCHER->prio (6);
1543
1544 ()
1300} 1545}
1301 1546
1302sub save { 1547sub save {
1303 my ($self) = @_; 1548 my ($self) = @_;
1304 1549
1550 my $lock = cf::lock_acquire "map_data:" . $self->path;
1551
1305 $self->{last_save} = $cf::RUNTIME; 1552 $self->{last_save} = $cf::RUNTIME;
1306 1553
1307 return unless $self->dirty; 1554 return unless $self->dirty;
1308 1555
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1556 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1557 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1558
1312 $self->{load_path} = $save; 1559 $self->{load_path} = $save;
1313 1560
1314 return if $self->{deny_save}; 1561 return if $self->{deny_save};
1315 1562
1563 local $self->{last_access} = $self->last_access;#d#
1564
1565 cf::async {
1566 $_->contr->save for $self->players;
1567 };
1568
1316 if ($uniq) { 1569 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1570 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1571 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1572 } else {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1573 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321 } 1574 }
1322} 1575}
1323 1576
1324sub swap_out { 1577sub swap_out {
1325 my ($self) = @_; 1578 my ($self) = @_;
1579
1580 # save first because save cedes
1581 $self->save;
1582
1583 my $lock = cf::lock_acquire "map_data:" . $self->path;
1326 1584
1327 return if $self->players; 1585 return if $self->players;
1328 return if $self->in_memory != cf::MAP_IN_MEMORY; 1586 return if $self->in_memory != cf::MAP_IN_MEMORY;
1329 return if $self->{deny_save}; 1587 return if $self->{deny_save};
1330 1588
1331 $self->save;
1332 $self->clear; 1589 $self->clear;
1333 $self->in_memory (cf::MAP_SWAPPED); 1590 $self->in_memory (cf::MAP_SWAPPED);
1334} 1591}
1335 1592
1336sub reset_at { 1593sub reset_at {
1337 my ($self) = @_; 1594 my ($self) = @_;
1338 1595
1339 # TODO: safety, remove and allow resettable per-player maps 1596 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel}; 1597 return 1e99 if $self->isa ("ext::map_per_player");#d#
1341 return 1e99 if $self->{deny_reset}; 1598 return 1e99 if $self->{deny_reset};
1342 1599
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1600 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1601 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345 1602
1350 my ($self) = @_; 1607 my ($self) = @_;
1351 1608
1352 $self->reset_at <= $cf::RUNTIME 1609 $self->reset_at <= $cf::RUNTIME
1353} 1610}
1354 1611
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 { 1612sub reset {
1377 my ($self) = @_; 1613 my ($self) = @_;
1378 1614
1615 my $lock = cf::lock_acquire "map_data:$self->{path}";
1616
1379 return if $self->players; 1617 return if $self->players;
1380 return if $self->{path}{user_rel};#d# 1618 return if $self->isa ("ext::map_per_player");#d#
1381 1619
1382 warn "resetting map ", $self->path;#d# 1620 warn "resetting map ", $self->path;#d#
1383 1621
1622 $self->in_memory (cf::MAP_SWAPPED);
1623
1624 # need to save uniques path
1625 unless ($self->{deny_save}) {
1626 my $uniq = $self->uniq_path; utf8::encode $uniq;
1627
1628 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1629 if $uniq;
1630 }
1631
1384 delete $cf::MAP{$self->path}; 1632 delete $cf::MAP{$self->path};
1633
1634 $self->clear;
1385 1635
1386 $_->clear_links_to ($self) for values %cf::MAP; 1636 $_->clear_links_to ($self) for values %cf::MAP;
1387 1637
1388 $self->unlink_save; 1638 $self->unlink_save;
1389 $self->destroy; 1639 $self->destroy;
1392my $nuke_counter = "aaaa"; 1642my $nuke_counter = "aaaa";
1393 1643
1394sub nuke { 1644sub nuke {
1395 my ($self) = @_; 1645 my ($self) = @_;
1396 1646
1647 delete $cf::MAP{$self->path};
1648
1649 $self->unlink_save;
1650
1651 bless $self, "cf::map";
1652 delete $self->{deny_reset};
1397 $self->{deny_save} = 1; 1653 $self->{deny_save} = 1;
1398 $self->reset_timeout (1); 1654 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++)); 1655 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1656
1657 $cf::MAP{$self->path} = $self;
1658
1400 $self->reset; # polite request, might not happen 1659 $self->reset; # polite request, might not happen
1401} 1660}
1402 1661
1403sub customise_for { 1662=item cf::map::unique_maps
1404 my ($map, $ob) = @_;
1405 1663
1406 if ($map->per_player) { 1664Returns an arrayref of paths of all shared maps that have
1407 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1665instantiated unique items. May block.
1408 }
1409 1666
1410 $map 1667=cut
1411}
1412 1668
1413sub emergency_save { 1669sub unique_maps() {
1414 local $cf::FREEZE = 1; 1670 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1671 or return;
1415 1672
1416 warn "enter emergency map save\n"; 1673 my @paths;
1417 1674
1418 cf::sync_job { 1675 for (@$files) {
1419 warn "begin emergency map save\n"; 1676 utf8::decode $_;
1420 $_->save for values %cf::MAP; 1677 next if /\.pst$/;
1678 next unless /^$PATH_SEP/o;
1679
1680 push @paths, cf::map::normalise $_;
1421 }; 1681 }
1422 1682
1423 warn "end emergency map save\n"; 1683 \@paths
1424} 1684}
1425 1685
1426package cf; 1686package cf;
1427 1687
1428=back 1688=back
1429 1689
1690=head3 cf::object
1691
1692=cut
1693
1694package cf::object;
1695
1696=over 4
1697
1698=item $ob->inv_recursive
1699
1700Returns the inventory of the object _and_ their inventories, recursively.
1701
1702=cut
1703
1704sub inv_recursive_;
1705sub inv_recursive_ {
1706 map { $_, inv_recursive_ $_->inv } @_
1707}
1708
1709sub inv_recursive {
1710 inv_recursive_ inv $_[0]
1711}
1712
1713package cf;
1714
1715=back
1430 1716
1431=head3 cf::object::player 1717=head3 cf::object::player
1432 1718
1433=over 4 1719=over 4
1434 1720
1474 1760
1475=item $player_object->enter_link 1761=item $player_object->enter_link
1476 1762
1477Freezes the player and moves him/her to a special map (C<{link}>). 1763Freezes the player and moves him/her to a special map (C<{link}>).
1478 1764
1479The player should be reaosnably safe there for short amounts of time. You 1765The player should be reasonably safe there for short amounts of time. You
1480I<MUST> call C<leave_link> as soon as possible, though. 1766I<MUST> call C<leave_link> as soon as possible, though.
1481 1767
1768Will never block.
1769
1482=item $player_object->leave_link ($map, $x, $y) 1770=item $player_object->leave_link ($map, $x, $y)
1483 1771
1484Moves the player out of the specila link map onto the given map. If the 1772Moves 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 1773map. 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, 1774to the location he/she was before the call to C<enter_link>, or, if that
1487to the emergency map position. 1775fails, to the emergency map position.
1488 1776
1489Might block. 1777Might block.
1490 1778
1491=cut 1779=cut
1780
1781sub link_map {
1782 unless ($LINK_MAP) {
1783 $LINK_MAP = cf::map::find "{link}"
1784 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1785 $LINK_MAP->load;
1786 }
1787
1788 $LINK_MAP
1789}
1492 1790
1493sub cf::object::player::enter_link { 1791sub cf::object::player::enter_link {
1494 my ($self) = @_; 1792 my ($self) = @_;
1495 1793
1496 $self->deactivate_recursive; 1794 $self->deactivate_recursive;
1497 1795
1498 return if $self->map == $LINK_MAP; 1796 return if UNIVERSAL::isa $self->map, "ext::map_link";
1499 1797
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1798 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map; 1799 if $self->map;
1502 1800
1503 $self->enter_map ($LINK_MAP, 20, 20); 1801 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1504} 1802}
1505 1803
1506sub cf::object::player::leave_link { 1804sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_; 1805 my ($self, $map, $x, $y) = @_;
1508 1806
1509 my $link_pos = delete $self->{_link_pos}; 1807 my $link_pos = delete $self->{_link_pos};
1510 1808
1511 unless ($map) { 1809 unless ($map) {
1512 # restore original map position 1810 # restore original map position
1513 ($map, $x, $y) = @{ $link_pos || [] }; 1811 ($map, $x, $y) = @{ $link_pos || [] };
1514 $map = cf::map::find_map $map; 1812 $map = cf::map::find $map;
1515 1813
1516 unless ($map) { 1814 unless ($map) {
1517 ($map, $x, $y) = @$EMERGENCY_POSITION; 1815 ($map, $x, $y) = @$EMERGENCY_POSITION;
1518 $map = cf::map::find_map $map 1816 $map = cf::map::find $map
1519 or die "FATAL: cannot load emergency map\n"; 1817 or die "FATAL: cannot load emergency map\n";
1520 } 1818 }
1521 } 1819 }
1522 1820
1523 ($x, $y) = (-1, -1) 1821 ($x, $y) = (-1, -1)
1526 # use -1 or undef as default coordinates, not 0, 0 1824 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y) 1825 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0; 1826 if $x <=0 && $y <= 0;
1529 1827
1530 $map->load; 1828 $map->load;
1829 $map->load_diag;
1531 1830
1831 return unless $self->contr->active;
1532 $self->activate_recursive; 1832 $self->activate_recursive;
1833
1834 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533 $self->enter_map ($map, $x, $y); 1835 $self->enter_map ($map, $x, $y);
1534} 1836}
1535 1837
1536cf::player->attach ( 1838cf::player->attach (
1537 on_logout => sub { 1839 on_logout => sub {
1549 1851
1550 # try to abort aborted map switching on player login :) 1852 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes 1853 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) { 1854 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link; 1855 $pl->ob->enter_link;
1554 cf::async { 1856 (async {
1857 $pl->ob->reply (undef,
1858 "There was an internal problem at your last logout, "
1859 . "the server will try to bring you to your intended destination in a second.",
1860 cf::NDI_RED);
1555 # we need this sleep as the login has a concurrent enter_exit running 1861 # 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 1862 # and this sleep increases chances of the player not ending up in scorn
1557 Coro::Timer::sleep 1; 1863 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link; 1864 $pl->ob->leave_link;
1559 }; 1865 })->prio (2);
1560 } 1866 }
1561 }, 1867 },
1562); 1868);
1563 1869
1564=item $player_object->goto_map ($path, $x, $y) 1870=item $player_object->goto ($path, $x, $y)
1565 1871
1566=cut 1872=cut
1567 1873
1568sub cf::object::player::goto_map { 1874sub cf::object::player::goto {
1569 my ($self, $path, $x, $y) = @_; 1875 my ($self, $path, $x, $y) = @_;
1570 1876
1571 $self->enter_link; 1877 $self->enter_link;
1572 1878
1573 (cf::async { 1879 (async {
1574 $path = new cf::path $path; 1880 my $map = eval {
1575
1576 my $map = cf::map::find_map $path->as_string; 1881 my $map = cf::map::find $path;
1577 $map = $map->customise_for ($self) if $map; 1882 $map = $map->customise_for ($self) if $map;
1578 1883 $map
1579# warn "entering ", $map->path, " at ($x, $y)\n" 1884 } or
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1885 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583 1886
1584 $self->leave_link ($map, $x, $y); 1887 $self->leave_link ($map, $x, $y);
1585 })->prio (1); 1888 })->prio (1);
1586} 1889}
1587 1890
1591 1894
1592sub parse_random_map_params { 1895sub parse_random_map_params {
1593 my ($spec) = @_; 1896 my ($spec) = @_;
1594 1897
1595 my $rmp = { # defaults 1898 my $rmp = { # defaults
1596 xsize => 10, 1899 xsize => (cf::rndm 15, 40),
1597 ysize => 10, 1900 ysize => (cf::rndm 15, 40),
1901 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1902 #layout => string,
1598 }; 1903 };
1599 1904
1600 for (split /\n/, $spec) { 1905 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2; 1906 my ($k, $v) = split /\s+/, $_, 2;
1602 1907
1606 $rmp 1911 $rmp
1607} 1912}
1608 1913
1609sub prepare_random_map { 1914sub prepare_random_map {
1610 my ($exit) = @_; 1915 my ($exit) = @_;
1916
1917 my $guard = cf::lock_acquire "exit_prepare:$exit";
1611 1918
1612 # all this does is basically replace the /! path by 1919 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed 1920 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object 1921 # that depends on the exit object
1615 1922
1616 my $rmp = parse_random_map_params $exit->msg; 1923 my $rmp = parse_random_map_params $exit->msg;
1617 1924
1618 if ($exit->map) { 1925 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name; 1926 $rmp->{region} = $exit->region->name;
1620 $rmp->{origin_map} = $exit->map->path; 1927 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x; 1928 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y; 1929 $rmp->{origin_y} = $exit->y;
1623 } 1930 }
1624 1931
1625 $rmp->{random_seed} ||= $exit->random_seed; 1932 $rmp->{random_seed} ||= $exit->random_seed;
1626 1933
1627 my $data = cf::to_json $rmp; 1934 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data; 1935 my $md5 = Digest::MD5::md5_hex $data;
1936 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629 1937
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1938 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0; 1939 aio_write $fh, 0, (length $data), $data, 0;
1940 undef $fh;
1941 aio_rename "$meta~", $meta;
1632 1942
1633 $exit->slaying ("?random/$md5"); 1943 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef); 1944 $exit->msg (undef);
1635 } 1945 }
1636} 1946}
1638sub cf::object::player::enter_exit { 1948sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_; 1949 my ($self, $exit) = @_;
1640 1950
1641 return unless $self->type == cf::PLAYER; 1951 return unless $self->type == cf::PLAYER;
1642 1952
1953 if ($exit->slaying eq "/!") {
1954 #TODO: this should de-fi-ni-te-ly not be a sync-job
1955 cf::sync_job { prepare_random_map $exit };
1956 }
1957
1958 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959 my $hp = $exit->stats->hp;
1960 my $sp = $exit->stats->sp;
1961
1643 $self->enter_link; 1962 $self->enter_link;
1644 1963
1645 (cf::async { 1964 (async {
1965 $self->deactivate_recursive; # just to be sure
1646 unless (eval { 1966 unless (eval {
1647 prepare_random_map $exit 1967 $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 1968
1653 1; 1969 1;
1654 }) { 1970 }) {
1655 $self->message ("Something went wrong deep within the crossfire server. " 1971 $self->message ("Something went wrong deep within the crossfire server. "
1656 . "I'll try to bring you back to the map you were before. " 1972 . "I'll try to bring you back to the map you were before. "
1657 . "Please report this to the dungeon master", 1973 . "Please report this to the dungeon master!",
1658 cf::NDI_UNIQUE | cf::NDI_RED); 1974 cf::NDI_UNIQUE | cf::NDI_RED);
1659 1975
1660 warn "ERROR in enter_exit: $@"; 1976 warn "ERROR in enter_exit: $@";
1661 $self->leave_link; 1977 $self->leave_link;
1662 } 1978 }
1714 my ($ns, $msg) = @_; 2030 my ($ns, $msg) = @_;
1715 2031
1716 # this weird shuffling is so that direct followup queries 2032 # this weird shuffling is so that direct followup queries
1717 # get handled first 2033 # get handled first
1718 my $queue = delete $ns->{query_queue} 2034 my $queue = delete $ns->{query_queue}
1719 or return; # be conservative, not sure how that cna happen, but we saw a crash here 2035 or return; # be conservative, not sure how that can happen, but we saw a crash here
1720 2036
1721 (shift @$queue)->[1]->($msg); 2037 (shift @$queue)->[1]->($msg);
2038 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722 2039
1723 push @{ $ns->{query_queue} }, @$queue; 2040 push @{ $ns->{query_queue} }, @$queue;
1724 2041
1725 if (@{ $ns->{query_queue} } == @$queue) { 2042 if (@{ $ns->{query_queue} } == @$queue) {
1726 if (@$queue) { 2043 if (@$queue) {
1730 } 2047 }
1731 } 2048 }
1732 }, 2049 },
1733); 2050);
1734 2051
1735=item $client->coro (\&cb) 2052=item $client->async (\&cb)
1736 2053
1737Create a new coroutine, running the specified callback. The coroutine will 2054Create a new coroutine, running the specified callback. The coroutine will
1738be automatically cancelled when the client gets destroyed (e.g. on logout, 2055be automatically cancelled when the client gets destroyed (e.g. on logout,
1739or loss of connection). 2056or loss of connection).
1740 2057
1741=cut 2058=cut
1742 2059
1743sub cf::client::coro { 2060sub cf::client::async {
1744 my ($self, $cb) = @_; 2061 my ($self, $cb) = @_;
1745 2062
1746 my $coro = &cf::async ($cb); 2063 my $coro = &Coro::async ($cb);
1747 2064
1748 $coro->on_destroy (sub { 2065 $coro->on_destroy (sub {
1749 delete $self->{_coro}{$coro+0}; 2066 delete $self->{_coro}{$coro+0};
1750 }); 2067 });
1751 2068
1887The parameter C<$family> should best start with the name of the extension 2204The parameter C<$family> should best start with the name of the extension
1888using it, it should be unique. 2205using it, it should be unique.
1889 2206
1890=over 4 2207=over 4
1891 2208
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 2209=item $value = cf::db_get $family => $key
1899 2210
1900Returns a single value from the database 2211Returns 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 2212
1907=item cf::db_put $family => $key => $value 2213=item cf::db_put $family => $key => $value
1908 2214
1909Stores the given C<$value> in the family hash. Updates are delayed, if you 2215Stores 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 2216
1920=cut 2217=cut
1921 2218
1922our $DB; 2219our $DB;
1923 2220
1924{ 2221sub db_init {
2222 unless ($DB) {
2223 $DB = BDB::db_create $DB_ENV;
2224
2225 cf::sync_job {
2226 eval {
2227 $DB->set_flags (BDB::CHKSUM);
2228
2229 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231 cf::cleanup "db_open(db): $!" if $!;
2232 };
2233 cf::cleanup "db_open(db): $@" if $@;
2234 };
2235
1925 my $path = cf::localdir . "/database.pst"; 2236 my $path = cf::localdir . "/database.pst";
2237 if (stat $path) {
2238 cf::sync_job {
2239 my $pst = Storable::retrieve $path;
1926 2240
1927 sub db_load() { 2241 cf::db_put (board => data => $pst->{board});
1928 $DB = stat $path ? Storable::retrieve $path : { }; 2242 cf::db_put (guildrules => data => $pst->{guildrules});
1929 } 2243 cf::db_put (rent => balance => $pst->{rent}{balance});
2244 BDB::db_env_txn_checkpoint $DB_ENV;
1930 2245
1931 my $pid; 2246 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 } 2247 };
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 }, 2248 }
1979 ); 2249 }
2250}
2251
2252sub db_get($$) {
2253 my $key = "$_[0]/$_[1]";
2254
2255 cf::sync_job {
2256 BDB::db_get $DB, undef, $key, my $data;
2257
2258 $! ? ()
2259 : Compress::LZF::sthaw $data
2260 }
2261}
2262
2263sub db_put($$$) {
2264 BDB::dbreq_pri 4;
2265 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1980} 2266}
1981 2267
1982############################################################################# 2268#############################################################################
1983# the server's main() 2269# the server's init and main functions
2270
2271sub init_resources {
2272 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2273 or die "unable to load regions file\n";#d#
2274}
1984 2275
1985sub cfg_load { 2276sub cfg_load {
1986 open my $fh, "<:utf8", cf::confdir . "/config" 2277 open my $fh, "<:utf8", cf::confdir . "/config"
1987 or return; 2278 or return;
1988 2279
1989 local $/; 2280 local $/;
1990 *CFG = YAML::Syck::Load <$fh>; 2281 *CFG = YAML::Syck::Load <$fh>;
2282
2283 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2284
2285 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2286 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2287
2288 if (exists $CFG{mlockall}) {
2289 eval {
2290 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291 and die "WARNING: m(un)lockall failed: $!\n";
2292 };
2293 warn $@ if $@;
2294 }
2295}
2296
2297sub init {
2298 init_resources;
1991} 2299}
1992 2300
1993sub main { 2301sub main {
1994 # we must not ever block the main coroutine 2302 # we must not ever block the main coroutine
1995 local $Coro::idle = sub { 2303 local $Coro::idle = sub {
1996 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2304 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997 (Coro::unblock_sub { 2305 (async {
1998 Event::one_event; 2306 Event::one_event;
1999 })->(); 2307 })->prio (Coro::PRIO_MAX);
2000 }; 2308 };
2001 2309
2002 cfg_load; 2310 cfg_load;
2003 db_load; 2311 db_init;
2004 load_extensions; 2312 load_extensions;
2313
2314 $TICK_WATCHER->start;
2005 Event::loop; 2315 Event::loop;
2006} 2316}
2007 2317
2008############################################################################# 2318#############################################################################
2009# initialisation 2319# initialisation and cleanup
2320
2321# install some emergency cleanup handlers
2322BEGIN {
2323 for my $signal (qw(INT HUP TERM)) {
2324 Event->signal (
2325 reentrant => 0,
2326 data => WF_AUTOCANCEL,
2327 signal => $signal,
2328 prio => 0,
2329 cb => sub {
2330 cf::cleanup "SIG$signal";
2331 },
2332 );
2333 }
2334}
2335
2336sub emergency_save() {
2337 my $freeze_guard = cf::freeze_mainloop;
2338
2339 warn "enter emergency perl save\n";
2340
2341 cf::sync_job {
2342 # use a peculiar iteration method to avoid tripping on perl
2343 # refcount bugs in for. also avoids problems with players
2344 # and maps saved/destroyed asynchronously.
2345 warn "begin emergency player save\n";
2346 for my $login (keys %cf::PLAYER) {
2347 my $pl = $cf::PLAYER{$login} or next;
2348 $pl->valid or next;
2349 $pl->save;
2350 }
2351 warn "end emergency player save\n";
2352
2353 warn "begin emergency map save\n";
2354 for my $path (keys %cf::MAP) {
2355 my $map = $cf::MAP{$path} or next;
2356 $map->valid or next;
2357 $map->save;
2358 }
2359 warn "end emergency map save\n";
2360
2361 warn "begin emergency database checkpoint\n";
2362 BDB::db_env_txn_checkpoint $DB_ENV;
2363 warn "end emergency database checkpoint\n";
2364 };
2365
2366 warn "leave emergency perl save\n";
2367}
2368
2369sub post_cleanup {
2370 my ($make_core) = @_;
2371
2372 warn Carp::longmess "post_cleanup backtrace"
2373 if $make_core;
2374}
2010 2375
2011sub reload() { 2376sub reload() {
2012 # can/must only be called in main 2377 # can/must only be called in main
2013 if ($Coro::current != $Coro::main) { 2378 if ($Coro::current != $Coro::main) {
2014 warn "can only reload from main coroutine\n"; 2379 warn "can only reload from main coroutine";
2015 return; 2380 return;
2016 } 2381 }
2017 2382
2018 warn "reloading..."; 2383 warn "reloading...";
2019 2384
2020 local $FREEZE = 1; 2385 warn "entering sync_job";
2386
2387 cf::sync_job {
2388 cf::write_runtime; # external watchdog should not bark
2021 cf::emergency_save; 2389 cf::emergency_save;
2390 cf::write_runtime; # external watchdog should not bark
2022 2391
2023 eval { 2392 warn "syncing database to disk";
2393 BDB::db_env_txn_checkpoint $DB_ENV;
2394
2024 # if anything goes wrong in here, we should simply crash as we already saved 2395 # if anything goes wrong in here, we should simply crash as we already saved
2025 2396
2026 # cancel all watchers 2397 warn "cancelling all WF_AUTOCANCEL watchers";
2027 for (Event::all_watchers) { 2398 for (Event::all_watchers) {
2028 $_->cancel if $_->data & WF_AUTOCANCEL; 2399 $_->cancel if $_->data & WF_AUTOCANCEL;
2029 } 2400 }
2030 2401
2402 warn "flushing outstanding aio requests";
2403 for (;;) {
2404 BDB::flush;
2405 IO::AIO::flush;
2406 Coro::cede;
2407 last unless IO::AIO::nreqs || BDB::nreqs;
2408 warn "iterate...";
2409 }
2410
2031 # cancel all extension coros 2411 warn "cancelling all extension coros";
2032 $_->cancel for values %EXT_CORO; 2412 $_->cancel for values %EXT_CORO;
2033 %EXT_CORO = (); 2413 %EXT_CORO = ();
2034 2414
2035 # unload all extensions 2415 warn "removing commands";
2036 for (@exts) { 2416 %COMMAND = ();
2417
2418 warn "removing ext commands";
2419 %EXTCMD = ();
2420
2421 warn "unloading/nuking all extensions";
2422 for my $pkg (@EXTS) {
2037 warn "unloading <$_>"; 2423 warn "... unloading $pkg";
2038 unload_extension $_; 2424
2425 if (my $cb = $pkg->can ("unload")) {
2426 eval {
2427 $cb->($pkg);
2428 1
2429 } or warn "$pkg unloaded, but with errors: $@";
2039 } 2430 }
2040 2431
2432 warn "... nuking $pkg";
2433 Symbol::delete_package $pkg;
2434 }
2435
2041 # unload all modules loaded from $LIBDIR 2436 warn "unloading all perl modules loaded from $LIBDIR";
2042 while (my ($k, $v) = each %INC) { 2437 while (my ($k, $v) = each %INC) {
2043 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2438 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044 2439
2045 warn "removing <$k>"; 2440 warn "... unloading $k";
2046 delete $INC{$k}; 2441 delete $INC{$k};
2047 2442
2048 $k =~ s/\.pm$//; 2443 $k =~ s/\.pm$//;
2049 $k =~ s/\//::/g; 2444 $k =~ s/\//::/g;
2050 2445
2053 } 2448 }
2054 2449
2055 Symbol::delete_package $k; 2450 Symbol::delete_package $k;
2056 } 2451 }
2057 2452
2058 # sync database to disk
2059 cf::db_sync;
2060 IO::AIO::flush;
2061
2062 # get rid of safe::, as good as possible 2453 warn "getting rid of safe::, as good as possible";
2063 Symbol::delete_package "safe::$_" 2454 Symbol::delete_package "safe::$_"
2064 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2455 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065 2456
2066 # remove register_script_function callbacks
2067 # TODO
2068
2069 # unload cf.pm "a bit" 2457 warn "unloading cf.pm \"a bit\"";
2070 delete $INC{"cf.pm"}; 2458 delete $INC{"cf.pm"};
2071 2459
2072 # don't, removes xs symbols, too, 2460 # don't, removes xs symbols, too,
2073 # and global variables created in xs 2461 # and global variables created in xs
2074 #Symbol::delete_package __PACKAGE__; 2462 #Symbol::delete_package __PACKAGE__;
2075 2463
2076 # reload cf.pm 2464 warn "unload completed, starting to reload now";
2465
2077 warn "reloading cf.pm"; 2466 warn "reloading cf.pm";
2078 require cf; 2467 require cf;
2079 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2468 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080 2469
2081 # load config and database again 2470 warn "loading config and database again";
2082 cf::cfg_load; 2471 cf::cfg_load;
2083 cf::db_load;
2084 2472
2085 # load extensions
2086 warn "load extensions"; 2473 warn "loading extensions";
2087 cf::load_extensions; 2474 cf::load_extensions;
2088 2475
2089 # reattach attachments to objects 2476 warn "reattaching attachments to objects/players";
2090 warn "reattach";
2091 _global_reattach; 2477 _global_reattach;
2092 }; 2478 warn "reattaching attachments to maps";
2479 reattach $_ for values %MAP;
2093 2480
2094 if ($@) { 2481 warn "loading reloadable resources";
2482 init_resources;
2483
2484 warn "leaving sync_job";
2485
2486 1
2487 } or do {
2095 warn $@; 2488 warn $@;
2096 warn "error while reloading, exiting."; 2489 warn "error while reloading, exiting.";
2097 exit 1; 2490 exit 1;
2098 } 2491 };
2099 2492
2100 warn "reloaded successfully"; 2493 warn "reloaded";
2101}; 2494};
2102 2495
2103############################################################################# 2496our $RELOAD_WATCHER; # used only during reload
2104
2105unless ($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} = $LINK_MAP;
2144}
2145
2146register "<global>", __PACKAGE__;
2147 2497
2148register_command "reload" => sub { 2498register_command "reload" => sub {
2149 my ($who, $arg) = @_; 2499 my ($who, $arg) = @_;
2150 2500
2151 if ($who->flag (FLAG_WIZ)) { 2501 if ($who->flag (FLAG_WIZ)) {
2152 $who->message ("start of reload."); 2502 $who->message ("reloading server.");
2503
2504 # doing reload synchronously and two reloads happen back-to-back,
2505 # coro crashes during coro_state_free->destroy here.
2506
2507 $RELOAD_WATCHER ||= Event->timer (
2508 reentrant => 0,
2509 after => 0,
2510 data => WF_AUTOCANCEL,
2511 cb => sub {
2153 reload; 2512 reload;
2154 $who->message ("end of reload."); 2513 undef $RELOAD_WATCHER;
2514 },
2515 );
2155 } 2516 }
2156}; 2517};
2157 2518
2158unshift @INC, $LIBDIR; 2519unshift @INC, $LIBDIR;
2520
2521my $bug_warning = 0;
2159 2522
2160$TICK_WATCHER = Event->timer ( 2523$TICK_WATCHER = Event->timer (
2161 reentrant => 0, 2524 reentrant => 0,
2525 parked => 1,
2162 prio => 0, 2526 prio => 0,
2163 at => $NEXT_TICK || $TICK, 2527 at => $NEXT_TICK || $TICK,
2164 data => WF_AUTOCANCEL, 2528 data => WF_AUTOCANCEL,
2165 cb => sub { 2529 cb => sub {
2166 unless ($FREEZE) { 2530 if ($Coro::current != $Coro::main) {
2531 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2532 unless ++$bug_warning > 10;
2533 return;
2534 }
2535
2536 $NOW = Event::time;
2537
2167 cf::server_tick; # one server iteration 2538 cf::server_tick; # one server iteration
2168 $RUNTIME += $TICK; 2539 $RUNTIME += $TICK;
2169 }
2170
2171 $NEXT_TICK += $TICK; 2540 $NEXT_TICK += $TICK;
2541
2542 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2543 $NEXT_RUNTIME_WRITE = $NOW + 10;
2544 Coro::async_pool {
2545 write_runtime
2546 or warn "ERROR: unable to write runtime file: $!";
2547 };
2548 }
2549
2550 $WAIT_FOR_TICK->broadcast;
2551 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2552
2553# my $AFTER = Event::time;
2554# warn $AFTER - $NOW;#d#
2172 2555
2173 # if we are delayed by four ticks or more, skip them all 2556 # if we are delayed by four ticks or more, skip them all
2174 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2557 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2175 2558
2176 $TICK_WATCHER->at ($NEXT_TICK); 2559 $TICK_WATCHER->at ($NEXT_TICK);
2177 $TICK_WATCHER->start; 2560 $TICK_WATCHER->start;
2178 }, 2561 },
2179); 2562);
2180 2563
2564{
2181IO::AIO::max_poll_time $TICK * 0.2; 2565 BDB::max_poll_time $TICK * 0.1;
2182 2566 $BDB_POLL_WATCHER = Event->io (
2183Event->io ( 2567 reentrant => 0,
2184 fd => IO::AIO::poll_fileno, 2568 fd => BDB::poll_fileno,
2185 poll => 'r', 2569 poll => 'r',
2186 prio => 5, 2570 prio => 0,
2187 data => WF_AUTOCANCEL,
2188 cb => \&IO::AIO::poll_cb,
2189);
2190
2191Event->timer (
2192 data => WF_AUTOCANCEL, 2571 data => WF_AUTOCANCEL,
2193 after => 0, 2572 cb => \&BDB::poll_cb,
2194 interval => 10, 2573 );
2195 cb => sub { 2574 BDB::min_parallel 8;
2196 (Coro::unblock_sub { 2575
2197 write_runtime 2576 BDB::set_sync_prepare {
2198 or warn "ERROR: unable to write runtime file: $!"; 2577 my $status;
2578 my $current = $Coro::current;
2579 (
2580 sub {
2581 $status = $!;
2582 $current->ready; undef $current;
2583 },
2584 sub {
2585 Coro::schedule while defined $current;
2586 $! = $status;
2587 },
2588 )
2589 };
2590
2591 unless ($DB_ENV) {
2592 $DB_ENV = BDB::db_env_create;
2593
2594 cf::sync_job {
2595 eval {
2596 BDB::db_env_open
2597 $DB_ENV,
2598 $BDB_ENV_DIR,
2599 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2600 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2601 0666;
2602
2603 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2604
2605 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2606 $DB_ENV->set_lk_detect;
2607 };
2608
2609 cf::cleanup "db_env_open(db): $@" if $@;
2199 })->(); 2610 };
2200 }, 2611 }
2201); 2612}
2613
2614{
2615 IO::AIO::min_parallel 8;
2616
2617 undef $Coro::AIO::WATCHER;
2618 IO::AIO::max_poll_time $TICK * 0.1;
2619 $AIO_POLL_WATCHER = Event->io (
2620 reentrant => 0,
2621 data => WF_AUTOCANCEL,
2622 fd => IO::AIO::poll_fileno,
2623 poll => 'r',
2624 prio => 6,
2625 cb => \&IO::AIO::poll_cb,
2626 );
2627}
2202 2628
2203END { cf::emergency_save } 2629END { cf::emergency_save }
2204 2630
22051 26311
2206 2632

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