ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/lib/cf.pm
(Generate patch)

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 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 $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
55our %EXT_CORO; 71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75
76# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56 78
57binmode STDOUT; 79binmode STDOUT;
58binmode STDERR; 80binmode STDERR;
59 81
60# read virtual server time, if available 82# read virtual server time, if available
67mkdir cf::localdir; 89mkdir cf::localdir;
68mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
69mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
70mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
71mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
72 95
73# a special map that is always available
74our $LINK_MAP;
75our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
97
98sub cf::map::normalise;
76 99
77############################################################################# 100#############################################################################
78 101
79=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
80 103
104 127
105=item %cf::CFG 128=item %cf::CFG
106 129
107Configuration for the server, loaded from C</etc/crossfire/config>, or 130Configuration for the server, loaded from C</etc/crossfire/config>, or
108from wherever your confdir points to. 131from wherever your confdir points to.
132
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
134
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
137processing has been done. Call C<< ->wait >> on them to maximise the
138window of cpu time available, or simply to synchronise to the server tick.
109 139
110=back 140=back
111 141
112=cut 142=cut
113 143
117 utf8::encode $msg; 147 utf8::encode $msg;
118 148
119 $msg .= "\n" 149 $msg .= "\n"
120 unless $msg =~ /\n$/; 150 unless $msg =~ /\n$/;
121 151
122 LOG llevError, "cfperl: $msg"; 152 LOG llevError, $msg;
123 }; 153 };
124} 154}
125 155
126@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
145 175
146$Event::DIED = sub { 176$Event::DIED = sub {
147 warn "error in event callback: @_"; 177 warn "error in event callback: @_";
148}; 178};
149 179
150my %ext_pkg;
151my @exts;
152my @hook;
153
154=head2 UTILITY FUNCTIONS 180=head2 UTILITY FUNCTIONS
155 181
156=over 4 182=over 4
157 183
184=item dumpval $ref
185
158=cut 186=cut
187
188sub dumpval {
189 eval {
190 local $SIG{__DIE__};
191 my $d;
192 if (1) {
193 $d = new Data::Dumper([$_[0]], ["*var"]);
194 $d->Terse(1);
195 $d->Indent(2);
196 $d->Quotekeys(0);
197 $d->Useqq(1);
198 #$d->Bless(...);
199 $d->Seen($_[1]) if @_ > 1;
200 $d = $d->Dump();
201 }
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d
204 } || "[unable to dump $_[0]: '$@']";
205}
159 206
160use JSON::Syck (); # TODO# replace by JSON::PC once working 207use JSON::Syck (); # TODO# replace by JSON::PC once working
161 208
162=item $ref = cf::from_json $json 209=item $ref = cf::from_json $json
163 210
179sub to_json($) { 226sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 228 JSON::Syck::Dump $_[0]
182} 229}
183 230
184=item my $guard = cf::guard { BLOCK }
185
186Run the given callback when the guard object gets destroyed (useful for
187coroutine cancellations).
188
189You can call C<< ->cancel >> on the guard object to stop the block from
190being executed.
191
192=cut
193
194sub guard(&) {
195 bless \(my $cb = $_[0]), cf::guard::;
196}
197
198sub cf::guard::cancel {
199 ${$_[0]} = sub { };
200}
201
202sub cf::guard::DESTROY {
203 ${$_[0]}->();
204}
205
206=item cf::lock_wait $string 231=item cf::lock_wait $string
207 232
208Wait until the given lock is available. See cf::lock_acquire. 233Wait until the given lock is available. See cf::lock_acquire.
209 234
210=item my $lock = cf::lock_acquire $string 235=item my $lock = cf::lock_acquire $string
211 236
212Wait until the given lock is available and then acquires it and returns 237Wait until the given lock is available and then acquires it and returns
213a guard object. If the guard object gets destroyed (goes out of scope, 238a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214for example when the coroutine gets canceled), the lock is automatically 239for example when the coroutine gets canceled), the lock is automatically
215returned. 240returned.
216 241
217Lock names should begin with a unique identifier (for example, cf::map::find 242Lock names should begin with a unique identifier (for example, cf::map::find
218uses map_find and cf::map::load uses map_load). 243uses map_find and cf::map::load uses map_load).
237 # wait, to be sure we are not locked 262 # wait, to be sure we are not locked
238 lock_wait $key; 263 lock_wait $key;
239 264
240 $LOCK{$key} = []; 265 $LOCK{$key} = [];
241 266
242 cf::guard { 267 Coro::guard {
243 # wake up all waiters, to be on the safe side 268 # wake up all waiters, to be on the safe side
244 $_->ready for @{ delete $LOCK{$key} }; 269 $_->ready for @{ delete $LOCK{$key} };
245 } 270 }
246} 271}
247 272
248=item cf::async { BLOCK }
249
250Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251error instead of exiting the server in case of a problem.
252
253=cut
254
255sub async(&) {
256 my ($cb) = @_;
257
258 Coro::async {
259 eval { $cb->() };
260 warn $@ if $@;
261 }
262}
263
264sub freeze_mainloop { 273sub freeze_mainloop {
265 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
266 275
267 my $guard = guard { $TICK_WATCHER->start }; 276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 };
268 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
269 $guard 280 $guard
270} 281}
282
283=item cf::async { BLOCK }
284
285Currently the same as Coro::async_pool, meaning you cannot use
286C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287thing you are allowed to do is call C<prio> on it.
288
289=cut
290
291BEGIN { *async = \&Coro::async_pool }
271 292
272=item cf::sync_job { BLOCK } 293=item cf::sync_job { BLOCK }
273 294
274The design of crossfire+ requires that the main coro ($Coro::main) is 295The design of crossfire+ requires that the main coro ($Coro::main) is
275always able to handle events or runnable, as crossfire+ is only partly 296always able to handle events or runnable, as crossfire+ is only partly
294 my $freeze_guard = freeze_mainloop; 315 my $freeze_guard = freeze_mainloop;
295 316
296 my $busy = 1; 317 my $busy = 1;
297 my @res; 318 my @res;
298 319
299 (Coro::async { 320 (async {
300 @res = eval { $job->() }; 321 @res = eval { $job->() };
301 warn $@ if $@; 322 warn $@ if $@;
302 undef $busy; 323 undef $busy;
303 })->prio (Coro::PRIO_MAX); 324 })->prio (Coro::PRIO_MAX);
304 325
305 while ($busy) { 326 while ($busy) {
306 Coro::cede_notself; 327 Coro::cede or Event::one_event;
307 Event::one_event unless Coro::nready;
308 } 328 }
309 329
310 wantarray ? @res : $res[0] 330 wantarray ? @res : $res[0]
311 } else { 331 } else {
312 # we are in another coroutine, how wonderful, everything just works 332 # we are in another coroutine, how wonderful, everything just works
313 333
314 $job->() 334 $job->()
315 } 335 }
316} 336}
317 337
318=item $coro = cf::coro { BLOCK } 338=item $coro = cf::async_ext { BLOCK }
319 339
320Creates and returns a new coro. This coro is automcatially being canceled 340Like async, but this coro is automatically being canceled when the
321when the extension calling this is being unloaded. 341extension calling this is being unloaded.
322 342
323=cut 343=cut
324 344
325sub coro(&) { 345sub async_ext(&) {
326 my $cb = shift; 346 my $cb = shift;
327 347
328 my $coro = &cf::async ($cb); 348 my $coro = &Coro::async ($cb);
329 349
330 $coro->on_destroy (sub { 350 $coro->on_destroy (sub {
331 delete $EXT_CORO{$coro+0}; 351 delete $EXT_CORO{$coro+0};
332 }); 352 });
333 $EXT_CORO{$coro+0} = $coro; 353 $EXT_CORO{$coro+0} = $coro;
334 354
335 $coro 355 $coro
336} 356}
337 357
338sub write_runtime { 358sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime";
360
339 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
340 362
341 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342 or return; 364 or return;
343 365
366 my $value = $cf::RUNTIME + 90 + 10;
344 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369
345 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
346 and return; 371 and return;
347 372
373 # always fsync - this file is important
348 aio_fsync $fh 374 aio_fsync $fh
349 and return; 375 and return;
350 376
351 close $fh 377 close $fh
352 or return; 378 or return;
358} 384}
359 385
360=back 386=back
361 387
362=cut 388=cut
363
364#############################################################################
365
366package cf::path;
367
368sub new {
369 my ($class, $path, $base) = @_;
370
371 $path = $path->as_string if ref $path;
372
373 my $self = bless { }, $class;
374
375 # {... are special paths that are not touched
376 # ?xxx/... are special absolute paths
377 # ?random/... random maps
378 # /! non-realised random map exit
379 # /... normal maps
380 # ~/... per-player maps without a specific player (DO NOT USE)
381 # ~user/... per-player map of a specific user
382
383 if ($path =~ /^{/) {
384 # fine as it is
385 } elsif ($path =~ s{^\?random/}{}) {
386 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387 $self->{random} = cf::from_json $data;
388 } else {
389 if ($path =~ s{^~([^/]+)?}{}) {
390 $self->{user_rel} = 1;
391
392 if (defined $1) {
393 $self->{user} = $1;
394 } elsif ($base =~ m{^~([^/]+)/}) {
395 $self->{user} = $1;
396 } else {
397 warn "cannot resolve user-relative path without user <$path,$base>\n";
398 }
399 } elsif ($path =~ /^\//) {
400 # already absolute
401 } else {
402 $base =~ s{[^/]+/?$}{};
403 return $class->new ("$base/$path");
404 }
405
406 for ($path) {
407 redo if s{/\.?/}{/};
408 redo if s{/[^/]+/\.\./}{/};
409 }
410 }
411
412 $self->{path} = $path;
413
414 $self
415}
416
417# the name / primary key / in-game path
418sub as_string {
419 my ($self) = @_;
420
421 $self->{user_rel} ? "~$self->{user}$self->{path}"
422 : $self->{random} ? "?random/$self->{path}"
423 : $self->{path}
424}
425
426# the displayed name, this is a one way mapping
427sub visible_name {
428 my ($self) = @_;
429
430# if (my $rmp = $self->{random}) {
431# # todo: be more intelligent about this
432# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433# } else {
434 $self->as_string
435# }
436}
437
438# escape the /'s in the path
439sub _escaped_path {
440 # ∕ is U+2215
441 (my $path = $_[0]{path}) =~ s/\//∕/g;
442 $path
443}
444
445# the original (read-only) location
446sub load_path {
447 my ($self) = @_;
448
449 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450}
451
452# the temporary/swap location
453sub save_path {
454 my ($self) = @_;
455
456 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459}
460
461# the unique path, might be eq to save_path
462sub uniq_path {
463 my ($self) = @_;
464
465 $self->{user_rel} || $self->{random}
466 ? undef
467 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468}
469
470# return random map parameters, or undef
471sub random_map_params {
472 my ($self) = @_;
473
474 $self->{random}
475}
476
477# this is somewhat ugly, but style maps do need special treatment
478sub is_style_map {
479 $_[0]{path} =~ m{^/styles/}
480}
481
482package cf;
483 389
484############################################################################# 390#############################################################################
485 391
486=head2 ATTACHABLE OBJECTS 392=head2 ATTACHABLE OBJECTS
487 393
613our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
614our @CB_MAP = (); 520our @CB_MAP = ();
615 521
616my %attachment; 522my %attachment;
617 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
618sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
619 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
620 532
621 use sort 'stable'; 533 use sort 'stable';
622 534
793# object support 705# object support
794 706
795sub reattach { 707sub reattach {
796 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
797 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798 712
799 my $registry = $obj->registry; 713 my $registry = $obj->registry;
800 714
801 @$registry = (); 715 @$registry = ();
802 716
849 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
850 764
851 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
853 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
855 close $fh; 769 close $fh;
856 770
857 if (@$objs) { 771 if (@$objs) {
858 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
860 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
861 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
862 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
863 close $fh; 777 close $fh;
864 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
865 } 779 }
866 } else { 780 } else {
867 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
934=cut 848=cut
935 849
936sub register_extcmd { 850sub register_extcmd {
937 my ($name, $cb) = @_; 851 my ($name, $cb) = @_;
938 852
939 my $caller = caller;
940 #warn "registering extcmd '$name' to '$caller'";
941
942 $EXTCMD{$name} = [$cb, $caller]; 853 $EXTCMD{$name} = $cb;
943} 854}
944 855
945cf::player->attach ( 856cf::player->attach (
946 on_command => sub { 857 on_command => sub {
947 my ($pl, $name, $params) = @_; 858 my ($pl, $name, $params) = @_;
960 871
961 my $msg = eval { from_json $buf }; 872 my $msg = eval { from_json $buf };
962 873
963 if (ref $msg) { 874 if (ref $msg) {
964 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 875 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965 if (my %reply = $cb->[0]->($pl, $msg)) { 876 if (my %reply = $cb->($pl, $msg)) {
966 $pl->ext_reply ($msg->{msgid}, %reply); 877 $pl->ext_reply ($msg->{msgid}, %reply);
967 } 878 }
968 } 879 }
969 } else { 880 } else {
970 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 881 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
972 883
973 cf::override; 884 cf::override;
974 }, 885 },
975); 886);
976 887
977sub register {
978 my ($base, $pkg) = @_;
979
980 #TODO
981}
982
983sub load_extension { 888sub load_extension {
984 my ($path) = @_; 889 my ($path) = @_;
985 890
986 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 891 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
987 my $base = $1; 892 my $base = $1;
988 my $pkg = $1; 893 my $pkg = $1;
989 $pkg =~ s/[^[:word:]]/_/g; 894 $pkg =~ s/[^[:word:]]/_/g;
990 $pkg = "ext::$pkg"; 895 $pkg = "ext::$pkg";
991 896
992 warn "loading '$path' into '$pkg'\n"; 897 warn "... loading '$path' into '$pkg'\n";
993 898
994 open my $fh, "<:utf8", $path 899 open my $fh, "<:utf8", $path
995 or die "$path: $!"; 900 or die "$path: $!";
996 901
997 my $source = 902 my $source =
998 "package $pkg; use strict; use utf8;\n" 903 "package $pkg; use strict; use utf8;\n"
999 . "#line 1 \"$path\"\n{\n" 904 . "#line 1 \"$path\"\n{\n"
1000 . (do { local $/; <$fh> }) 905 . (do { local $/; <$fh> })
1001 . "\n};\n1"; 906 . "\n};\n1";
1002 907
1003 eval $source 908 unless (eval $source) {
1004 or die $@ ? "$path: $@\n" 909 my $msg = $@ ? "$path: $@\n"
1005 : "extension disabled.\n"; 910 : "extension disabled.\n";
1006 911 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007 push @exts, $pkg; 912 warn $@;
1008 $ext_pkg{$base} = $pkg; 913 warn "mandatory extension failed to load, exiting.\n";
1009 914 exit 1;
1010# no strict 'refs'; 915 }
1011# @{"$pkg\::ISA"} = ext::; 916 die $@;
1012
1013 register $base, $pkg;
1014}
1015
1016sub unload_extension {
1017 my ($pkg) = @_;
1018
1019 warn "removing extension $pkg\n";
1020
1021 # remove hooks
1022 #TODO
1023# for my $idx (0 .. $#PLUGIN_EVENT) {
1024# delete $hook[$idx]{$pkg};
1025# } 917 }
1026 918
1027 # remove commands 919 push @EXTS, $pkg;
1028 for my $name (keys %COMMAND) {
1029 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031 if (@cb) {
1032 $COMMAND{$name} = \@cb;
1033 } else {
1034 delete $COMMAND{$name};
1035 }
1036 }
1037
1038 # remove extcmds
1039 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040 delete $EXTCMD{$name};
1041 }
1042
1043 if (my $cb = $pkg->can ("unload")) {
1044 eval {
1045 $cb->($pkg);
1046 1
1047 } or warn "$pkg unloaded, but with errors: $@";
1048 }
1049
1050 Symbol::delete_package $pkg;
1051} 920}
1052 921
1053sub load_extensions { 922sub load_extensions {
1054 for my $ext (<$LIBDIR/*.ext>) { 923 for my $ext (<$LIBDIR/*.ext>) {
1055 next unless -r $ext; 924 next unless -r $ext;
1059 } or warn "$ext not loaded: $@"; 928 } or warn "$ext not loaded: $@";
1060 } 929 }
1061} 930}
1062 931
1063############################################################################# 932#############################################################################
1064# load/save/clean perl data associated with a map
1065
1066*cf::mapsupport::on_clean = sub {
1067 my ($map) = @_;
1068
1069 my $path = $map->tmpname;
1070 defined $path or return;
1071
1072 unlink "$path.pst";
1073};
1074
1075cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077#############################################################################
1078# load/save perl data associated with player->ob objects
1079
1080sub all_objects(@) {
1081 @_, map all_objects ($_->inv), @_
1082}
1083
1084# TODO: compatibility cruft, remove when no longer needed
1085cf::player->attach (
1086 on_load => sub {
1087 my ($pl, $path) = @_;
1088
1089 for my $o (all_objects $pl->ob) {
1090 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091 $o->set_ob_key_value ("_perl_data");
1092
1093 %$o = %{ Storable::thaw pack "H*", $value };
1094 }
1095 }
1096 },
1097);
1098
1099#############################################################################
1100 933
1101=head2 CORE EXTENSIONS 934=head2 CORE EXTENSIONS
1102 935
1103Functions and methods that extend core crossfire objects. 936Functions and methods that extend core crossfire objects.
1104 937
938=cut
939
940package cf::player;
941
942use Coro::AIO;
943
1105=head3 cf::player 944=head3 cf::player
1106 945
1107=over 4 946=over 4
1108 947
1109=item cf::player::exists $login 948=item cf::player::find $login
1110 949
1111Returns true when the given account exists. 950Returns the given player object, loading it if necessary (might block).
1112 951
1113=cut 952=cut
1114 953
1115sub cf::player::exists($) { 954sub playerdir($) {
1116 cf::player::find $_[0] 955 cf::localdir
1117 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
1118} 1110}
1119 1111
1120=item $player->ext_reply ($msgid, $msgtype, %msg) 1112=item $player->ext_reply ($msgid, $msgtype, %msg)
1121 1113
1122Sends an ext reply to the player. 1114Sends an ext reply to the player.
1123 1115
1124=cut 1116=cut
1125 1117
1126sub cf::player::ext_reply($$$%) { 1118sub ext_reply($$$%) {
1127 my ($self, $id, %msg) = @_; 1119 my ($self, $id, %msg) = @_;
1128 1120
1129 $msg{msgid} = $id; 1121 $msg{msgid} = $id;
1130 1122
1131 $self->send ("ext " . to_json \%msg); 1123 $self->send ("ext " . cf::to_json \%msg);
1132} 1124}
1125
1126package cf;
1133 1127
1134=back 1128=back
1135 1129
1136 1130
1137=head3 cf::map 1131=head3 cf::map
1143package cf::map; 1137package cf::map;
1144 1138
1145use Fcntl; 1139use Fcntl;
1146use Coro::AIO; 1140use Coro::AIO;
1147 1141
1142use overload
1143 '""' => \&as_string,
1144 fallback => 1;
1145
1148our $MAX_RESET = 3600; 1146our $MAX_RESET = 3600;
1149our $DEFAULT_RESET = 3000; 1147our $DEFAULT_RESET = 3000;
1150 1148
1151sub generate_random_map { 1149sub generate_random_map {
1152 my ($path, $rmp) = @_; 1150 my ($self, $rmp) = @_;
1153
1154 # mit "rum" bekleckern, nicht 1151 # mit "rum" bekleckern, nicht
1155 cf::map::_create_random_map 1152 $self->_create_random_map (
1156 $path,
1157 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1153 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1154 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1155 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160 $rmp->{exit_on_final_map}, 1156 $rmp->{exit_on_final_map},
1161 $rmp->{xsize}, $rmp->{ysize}, 1157 $rmp->{xsize}, $rmp->{ysize},
1162 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1158 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1159 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1160 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165 $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},
1166 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1162 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167 (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
1168} 1294}
1169 1295
1170# and all this just because we cannot iterate over 1296# and all this just because we cannot iterate over
1171# all maps in C++... 1297# all maps in C++...
1172sub change_all_map_light { 1298sub change_all_map_light {
1174 1300
1175 $_->change_map_light ($change) 1301 $_->change_map_light ($change)
1176 for grep $_->outdoor, values %cf::MAP; 1302 for grep $_->outdoor, values %cf::MAP;
1177} 1303}
1178 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
1179sub try_load_header($) { 1313sub load_header_from($) {
1180 my ($path) = @_; 1314 my ($self, $path) = @_;
1181 1315
1182 utf8::encode $path; 1316 utf8::encode $path;
1183 aio_open $path, O_RDONLY, 0 1317 #aio_open $path, O_RDONLY, 0
1318 # or return;
1319
1320 $self->_load_header ($path)
1184 or return; 1321 or return;
1185 1322
1186 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
1187 or return; 1366 or return;
1367 $self->prepare_orig;
1368 }
1188 1369
1189 $map->load_header ($path) 1370 1
1190 or return;
1191
1192 $map->{load_path} = $path;
1193
1194 $map
1195} 1371}
1196 1372
1197sub find; 1373sub find;
1198sub find { 1374sub find {
1199 my ($path, $origin) = @_; 1375 my ($path, $origin) = @_;
1200 1376
1201 #warn "find<$path,$origin>\n";#d#
1202
1203 $path = new cf::path $path, $origin && $origin->path; 1377 $path = normalise $path, $origin && $origin->path;
1204 my $key = $path->as_string;
1205 1378
1206 cf::lock_wait "map_find:$key"; 1379 cf::lock_wait "map_find:$path";
1207 1380
1208 $cf::MAP{$key} || do { 1381 $cf::MAP{$path} || do {
1209 my $guard = cf::lock_acquire "map_find:$key"; 1382 my $guard = cf::lock_acquire "map_find:$path";
1210 1383 my $map = new_from_path cf::map $path
1211 # do it the slow way
1212 my $map = try_load_header $path->save_path;
1213
1214 Coro::cede;
1215
1216 if ($map) {
1217 $map->last_access ((delete $map->{last_access})
1218 || $cf::RUNTIME); #d#
1219 # safety
1220 $map->{instantiate_time} = $cf::RUNTIME
1221 if $map->{instantiate_time} > $cf::RUNTIME;
1222 } else {
1223 if (my $rmp = $path->random_map_params) {
1224 $map = generate_random_map $key, $rmp;
1225 } else {
1226 $map = try_load_header $path->load_path;
1227 }
1228
1229 $map or return; 1384 or return;
1230 1385
1231 $map->{load_original} = 1;
1232 $map->{instantiate_time} = $cf::RUNTIME;
1233 $map->last_access ($cf::RUNTIME);
1234 $map->instantiate;
1235
1236 # per-player maps become, after loading, normal maps
1237 $map->per_player (0) if $path->{user_rel};
1238 }
1239
1240 $map->path ($key);
1241 $map->{path} = $path;
1242 $map->{last_save} = $cf::RUNTIME; 1386 $map->{last_save} = $cf::RUNTIME;
1243 1387
1244 Coro::cede; 1388 $map->load_header
1389 or return;
1245 1390
1246 if ($map->should_reset) { 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;
1247 $map->reset; 1394 $map->reset;
1248 undef $guard; 1395 undef $guard;
1249 $map = find $path 1396 return find $path;
1250 or return;
1251 } 1397 }
1252 1398
1253 $cf::MAP{$key} = $map 1399 $cf::MAP{$path} = $map
1254 } 1400 }
1255} 1401}
1402
1403sub pre_load { }
1404sub post_load { }
1256 1405
1257sub load { 1406sub load {
1258 my ($self) = @_; 1407 my ($self) = @_;
1259 1408
1409 local $self->{deny_reset} = 1; # loading can take a long time
1410
1260 my $path = $self->{path}; 1411 my $path = $self->{path};
1261 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1412 my $guard = cf::lock_acquire "map_load:$path";
1262 1413
1263 return if $self->in_memory != cf::MAP_SWAPPED; 1414 return if $self->in_memory != cf::MAP_SWAPPED;
1264 1415
1265 $self->in_memory (cf::MAP_LOADING); 1416 $self->in_memory (cf::MAP_LOADING);
1266 1417
1267 $self->alloc; 1418 $self->alloc;
1419
1420 $self->pre_load;
1421
1268 $self->load_objects ($self->{load_path}, 1) 1422 $self->_load_objects ($self->{load_path}, 1)
1269 or return; 1423 or return;
1270 1424
1271 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1425 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272 if delete $self->{load_original}; 1426 if delete $self->{load_original};
1273 1427
1274 if (my $uniq = $path->uniq_path) { 1428 if (my $uniq = $self->uniq_path) {
1275 utf8::encode $uniq; 1429 utf8::encode $uniq;
1276 if (aio_open $uniq, O_RDONLY, 0) { 1430 if (aio_open $uniq, O_RDONLY, 0) {
1277 $self->clear_unique_items; 1431 $self->clear_unique_items;
1278 $self->load_objects ($uniq, 0); 1432 $self->_load_objects ($uniq, 0);
1279 } 1433 }
1280 } 1434 }
1281 1435
1282 Coro::cede; 1436 Coro::cede;
1283 1437
1284 # now do the right thing for maps 1438 # now do the right thing for maps
1285 $self->link_multipart_objects; 1439 $self->link_multipart_objects;
1286 1440
1287 if ($self->{path}->is_style_map) { 1441 unless ($self->{deny_activate}) {
1288 $self->{deny_save} = 1; 1442 $self->decay_objects;
1289 $self->{deny_reset} = 1;
1290 } else {
1291 $self->fix_auto_apply; 1443 $self->fix_auto_apply;
1292 $self->decay_objects;
1293 $self->update_buttons; 1444 $self->update_buttons;
1445 Coro::cede;
1294 $self->set_darkness_map; 1446 $self->set_darkness_map;
1295 $self->difficulty ($self->estimate_difficulty) 1447 $self->difficulty ($self->estimate_difficulty)
1296 unless $self->difficulty; 1448 unless $self->difficulty;
1449 Coro::cede;
1297 $self->activate; 1450 $self->activate;
1298 } 1451 }
1299 1452
1300 Coro::cede; 1453 $self->post_load;
1301 1454
1302 $self->in_memory (cf::MAP_IN_MEMORY); 1455 $self->in_memory (cf::MAP_IN_MEMORY);
1456}
1457
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 }
1303} 1489}
1304 1490
1305sub find_sync { 1491sub find_sync {
1306 my ($path, $origin) = @_; 1492 my ($path, $origin) = @_;
1307 1493
1308 cf::sync_job { cf::map::find $path, $origin } 1494 cf::sync_job { find $path, $origin }
1309} 1495}
1310 1496
1311sub do_load_sync { 1497sub do_load_sync {
1312 my ($map) = @_; 1498 my ($map) = @_;
1313 1499
1314 cf::sync_job { $map->load }; 1500 cf::sync_job { $map->load };
1315} 1501}
1316 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;
1521 $map->load;
1522
1523 delete $MAP_PREFETCH{$path};
1524 }
1525 }
1526 undef $MAP_PREFETCHER;
1527 };
1528 $MAP_PREFETCHER->prio (6);
1529
1530 ()
1531}
1532
1317sub save { 1533sub save {
1318 my ($self) = @_; 1534 my ($self) = @_;
1319 1535
1536 my $lock = cf::lock_acquire "map_data:" . $self->path;
1537
1320 $self->{last_save} = $cf::RUNTIME; 1538 $self->{last_save} = $cf::RUNTIME;
1321 1539
1322 return unless $self->dirty; 1540 return unless $self->dirty;
1323 1541
1324 my $save = $self->{path}->save_path; utf8::encode $save; 1542 my $save = $self->save_path; utf8::encode $save;
1325 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1543 my $uniq = $self->uniq_path; utf8::encode $uniq;
1326 1544
1327 $self->{load_path} = $save; 1545 $self->{load_path} = $save;
1328 1546
1329 return if $self->{deny_save}; 1547 return if $self->{deny_save};
1330 1548
1331 local $self->{last_access} = $self->last_access;#d# 1549 local $self->{last_access} = $self->last_access;#d#
1332 1550
1551 cf::async {
1552 $_->contr->save for $self->players;
1553 };
1554
1333 if ($uniq) { 1555 if ($uniq) {
1334 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1556 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335 $self->save_objects ($uniq, cf::IO_UNIQUES); 1557 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1336 } else { 1558 } else {
1337 $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);
1338 } 1560 }
1339} 1561}
1340 1562
1341sub swap_out { 1563sub swap_out {
1342 my ($self) = @_; 1564 my ($self) = @_;
1343 1565
1344 # save first because save cedes 1566 # save first because save cedes
1345 $self->save; 1567 $self->save;
1568
1569 my $lock = cf::lock_acquire "map_data:" . $self->path;
1346 1570
1347 return if $self->players; 1571 return if $self->players;
1348 return if $self->in_memory != cf::MAP_IN_MEMORY; 1572 return if $self->in_memory != cf::MAP_IN_MEMORY;
1349 return if $self->{deny_save}; 1573 return if $self->{deny_save};
1350 1574
1354 1578
1355sub reset_at { 1579sub reset_at {
1356 my ($self) = @_; 1580 my ($self) = @_;
1357 1581
1358 # TODO: safety, remove and allow resettable per-player maps 1582 # TODO: safety, remove and allow resettable per-player maps
1359 return 1e99 if $self->{path}{user_rel}; 1583 return 1e99 if $self->isa ("ext::map_per_player");#d#
1360 return 1e99 if $self->{deny_reset}; 1584 return 1e99 if $self->{deny_reset};
1361 1585
1362 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1586 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363 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;
1364 1588
1369 my ($self) = @_; 1593 my ($self) = @_;
1370 1594
1371 $self->reset_at <= $cf::RUNTIME 1595 $self->reset_at <= $cf::RUNTIME
1372} 1596}
1373 1597
1374sub unlink_save {
1375 my ($self) = @_;
1376
1377 utf8::encode (my $save = $self->{path}->save_path);
1378 aioreq_pri 3; IO::AIO::aio_unlink $save;
1379 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380}
1381
1382sub rename {
1383 my ($self, $new_path) = @_;
1384
1385 $self->unlink_save;
1386
1387 delete $cf::MAP{$self->path};
1388 $self->{path} = new cf::path $new_path;
1389 $self->path ($self->{path}->as_string);
1390 $cf::MAP{$self->path} = $self;
1391
1392 $self->save;
1393}
1394
1395sub reset { 1598sub reset {
1396 my ($self) = @_; 1599 my ($self) = @_;
1397 1600
1601 my $lock = cf::lock_acquire "map_data:$self->{path}";
1602
1398 return if $self->players; 1603 return if $self->players;
1399 return if $self->{path}{user_rel};#d# 1604 return if $self->isa ("ext::map_per_player");#d#
1400 1605
1401 warn "resetting map ", $self->path;#d# 1606 warn "resetting map ", $self->path;#d#
1402 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
1403 delete $cf::MAP{$self->path}; 1618 delete $cf::MAP{$self->path};
1619
1620 $self->clear;
1404 1621
1405 $_->clear_links_to ($self) for values %cf::MAP; 1622 $_->clear_links_to ($self) for values %cf::MAP;
1406 1623
1407 $self->unlink_save; 1624 $self->unlink_save;
1408 $self->destroy; 1625 $self->destroy;
1411my $nuke_counter = "aaaa"; 1628my $nuke_counter = "aaaa";
1412 1629
1413sub nuke { 1630sub nuke {
1414 my ($self) = @_; 1631 my ($self) = @_;
1415 1632
1633 delete $cf::MAP{$self->path};
1634
1635 $self->unlink_save;
1636
1637 bless $self, "cf::map";
1638 delete $self->{deny_reset};
1416 $self->{deny_save} = 1; 1639 $self->{deny_save} = 1;
1417 $self->reset_timeout (1); 1640 $self->reset_timeout (1);
1418 $self->rename ("{nuke}/" . ($nuke_counter++)); 1641 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1642
1643 $cf::MAP{$self->path} = $self;
1644
1419 $self->reset; # polite request, might not happen 1645 $self->reset; # polite request, might not happen
1420} 1646}
1421 1647
1422sub customise_for { 1648=item cf::map::unique_maps
1423 my ($map, $ob) = @_;
1424 1649
1425 if ($map->per_player) { 1650Returns an arrayref of paths of all shared maps that have
1426 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path}; 1651instantiated unique items. May block.
1427 }
1428 1652
1429 $map 1653=cut
1430}
1431 1654
1432sub emergency_save { 1655sub unique_maps() {
1433 my $freeze_guard = cf::freeze_mainloop; 1656 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1657 or return;
1434 1658
1435 warn "enter emergency map save\n"; 1659 my @paths;
1436 1660
1437 cf::sync_job { 1661 for (@$files) {
1438 warn "begin emergency map save\n"; 1662 utf8::decode $_;
1439 $_->save for values %cf::MAP; 1663 next if /\.pst$/;
1664 next unless /^$PATH_SEP/o;
1665
1666 push @paths, cf::map::normalise $_;
1440 }; 1667 }
1441 1668
1442 warn "end emergency map save\n"; 1669 \@paths
1443} 1670}
1444 1671
1445package cf; 1672package cf;
1446 1673
1447=back 1674=back
1448 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
1449 1702
1450=head3 cf::object::player 1703=head3 cf::object::player
1451 1704
1452=over 4 1705=over 4
1453 1706
1493 1746
1494=item $player_object->enter_link 1747=item $player_object->enter_link
1495 1748
1496Freezes 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}>).
1497 1750
1498The 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
1499I<MUST> call C<leave_link> as soon as possible, though. 1752I<MUST> call C<leave_link> as soon as possible, though.
1500 1753
1754Will never block.
1755
1501=item $player_object->leave_link ($map, $x, $y) 1756=item $player_object->leave_link ($map, $x, $y)
1502 1757
1503Moves 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
1504map 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
1505location 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
1506to the emergency map position. 1761fails, to the emergency map position.
1507 1762
1508Might block. 1763Might block.
1509 1764
1510=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}
1511 1776
1512sub cf::object::player::enter_link { 1777sub cf::object::player::enter_link {
1513 my ($self) = @_; 1778 my ($self) = @_;
1514 1779
1515 $self->deactivate_recursive; 1780 $self->deactivate_recursive;
1516 1781
1517 return if $self->map == $LINK_MAP; 1782 return if UNIVERSAL::isa $self->map, "ext::map_link";
1518 1783
1519 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1784 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520 if $self->map; 1785 if $self->map;
1521 1786
1522 $self->enter_map ($LINK_MAP, 20, 20); 1787 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1523} 1788}
1524 1789
1525sub cf::object::player::leave_link { 1790sub cf::object::player::leave_link {
1526 my ($self, $map, $x, $y) = @_; 1791 my ($self, $map, $x, $y) = @_;
1527 1792
1545 # use -1 or undef as default coordinates, not 0, 0 1810 # use -1 or undef as default coordinates, not 0, 0
1546 ($x, $y) = ($map->enter_x, $map->enter_y) 1811 ($x, $y) = ($map->enter_x, $map->enter_y)
1547 if $x <=0 && $y <= 0; 1812 if $x <=0 && $y <= 0;
1548 1813
1549 $map->load; 1814 $map->load;
1815 $map->load_diag;
1550 1816
1817 return unless $self->contr->active;
1551 $self->activate_recursive; 1818 $self->activate_recursive;
1819
1820 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552 $self->enter_map ($map, $x, $y); 1821 $self->enter_map ($map, $x, $y);
1553} 1822}
1554 1823
1555cf::player->attach ( 1824cf::player->attach (
1556 on_logout => sub { 1825 on_logout => sub {
1568 1837
1569 # try to abort aborted map switching on player login :) 1838 # try to abort aborted map switching on player login :)
1570 # should happen only on crashes 1839 # should happen only on crashes
1571 if ($pl->ob->{_link_pos}) { 1840 if ($pl->ob->{_link_pos}) {
1572 $pl->ob->enter_link; 1841 $pl->ob->enter_link;
1573 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);
1574 # 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
1575 # 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
1576 Coro::Timer::sleep 1; 1849 Coro::Timer::sleep 1;
1577 $pl->ob->leave_link; 1850 $pl->ob->leave_link;
1578 }; 1851 })->prio (2);
1579 } 1852 }
1580 }, 1853 },
1581); 1854);
1582 1855
1583=item $player_object->goto_map ($path, $x, $y) 1856=item $player_object->goto ($path, $x, $y)
1584 1857
1585=cut 1858=cut
1586 1859
1587sub cf::object::player::goto_map { 1860sub cf::object::player::goto {
1588 my ($self, $path, $x, $y) = @_; 1861 my ($self, $path, $x, $y) = @_;
1589 1862
1590 $self->enter_link; 1863 $self->enter_link;
1591 1864
1592 (cf::async { 1865 (async {
1593 $path = new cf::path $path; 1866 my $map = eval {
1594
1595 my $map = cf::map::find $path->as_string; 1867 my $map = cf::map::find $path;
1596 $map = $map->customise_for ($self) if $map; 1868 $map = $map->customise_for ($self) if $map;
1597 1869 $map
1598# warn "entering ", $map->path, " at ($x, $y)\n" 1870 } or
1599# if $map;
1600
1601 $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);
1602 1872
1603 $self->leave_link ($map, $x, $y); 1873 $self->leave_link ($map, $x, $y);
1604 })->prio (1); 1874 })->prio (1);
1605} 1875}
1606 1876
1610 1880
1611sub parse_random_map_params { 1881sub parse_random_map_params {
1612 my ($spec) = @_; 1882 my ($spec) = @_;
1613 1883
1614 my $rmp = { # defaults 1884 my $rmp = { # defaults
1615 xsize => 10, 1885 xsize => (cf::rndm 15, 40),
1616 ysize => 10, 1886 ysize => (cf::rndm 15, 40),
1887 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1888 #layout => string,
1617 }; 1889 };
1618 1890
1619 for (split /\n/, $spec) { 1891 for (split /\n/, $spec) {
1620 my ($k, $v) = split /\s+/, $_, 2; 1892 my ($k, $v) = split /\s+/, $_, 2;
1621 1893
1625 $rmp 1897 $rmp
1626} 1898}
1627 1899
1628sub prepare_random_map { 1900sub prepare_random_map {
1629 my ($exit) = @_; 1901 my ($exit) = @_;
1902
1903 my $guard = cf::lock_acquire "exit_prepare:$exit";
1630 1904
1631 # all this does is basically replace the /! path by 1905 # all this does is basically replace the /! path by
1632 # a new random map path (?random/...) with a seed 1906 # a new random map path (?random/...) with a seed
1633 # that depends on the exit object 1907 # that depends on the exit object
1634 1908
1635 my $rmp = parse_random_map_params $exit->msg; 1909 my $rmp = parse_random_map_params $exit->msg;
1636 1910
1637 if ($exit->map) { 1911 if ($exit->map) {
1638 $rmp->{region} = $exit->map->region_name; 1912 $rmp->{region} = $exit->region->name;
1639 $rmp->{origin_map} = $exit->map->path; 1913 $rmp->{origin_map} = $exit->map->path;
1640 $rmp->{origin_x} = $exit->x; 1914 $rmp->{origin_x} = $exit->x;
1641 $rmp->{origin_y} = $exit->y; 1915 $rmp->{origin_y} = $exit->y;
1642 } 1916 }
1643 1917
1644 $rmp->{random_seed} ||= $exit->random_seed; 1918 $rmp->{random_seed} ||= $exit->random_seed;
1645 1919
1646 my $data = cf::to_json $rmp; 1920 my $data = cf::to_json $rmp;
1647 my $md5 = Digest::MD5::md5_hex $data; 1921 my $md5 = Digest::MD5::md5_hex $data;
1922 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1648 1923
1649 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) {
1650 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;
1651 1928
1652 $exit->slaying ("?random/$md5"); 1929 $exit->slaying ("?random/$md5");
1653 $exit->msg (undef); 1930 $exit->msg (undef);
1654 } 1931 }
1655} 1932}
1657sub cf::object::player::enter_exit { 1934sub cf::object::player::enter_exit {
1658 my ($self, $exit) = @_; 1935 my ($self, $exit) = @_;
1659 1936
1660 return unless $self->type == cf::PLAYER; 1937 return unless $self->type == cf::PLAYER;
1661 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
1662 $self->enter_link; 1948 $self->enter_link;
1663 1949
1664 (cf::async { 1950 (async {
1665 $self->deactivate_recursive; # just to be sure 1951 $self->deactivate_recursive; # just to be sure
1666 unless (eval { 1952 unless (eval {
1667 prepare_random_map $exit 1953 $self->goto ($slaying, $hp, $sp);
1668 if $exit->slaying eq "/!";
1669
1670 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672 1954
1673 1; 1955 1;
1674 }) { 1956 }) {
1675 $self->message ("Something went wrong deep within the crossfire server. " 1957 $self->message ("Something went wrong deep within the crossfire server. "
1676 . "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. "
1677 . "Please report this to the dungeon master", 1959 . "Please report this to the dungeon master!",
1678 cf::NDI_UNIQUE | cf::NDI_RED); 1960 cf::NDI_UNIQUE | cf::NDI_RED);
1679 1961
1680 warn "ERROR in enter_exit: $@"; 1962 warn "ERROR in enter_exit: $@";
1681 $self->leave_link; 1963 $self->leave_link;
1682 } 1964 }
1737 # get handled first 2019 # get handled first
1738 my $queue = delete $ns->{query_queue} 2020 my $queue = delete $ns->{query_queue}
1739 or return; # be conservative, not sure how that can happen, but we saw a crash here 2021 or return; # be conservative, not sure how that can happen, but we saw a crash here
1740 2022
1741 (shift @$queue)->[1]->($msg); 2023 (shift @$queue)->[1]->($msg);
2024 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742 2025
1743 push @{ $ns->{query_queue} }, @$queue; 2026 push @{ $ns->{query_queue} }, @$queue;
1744 2027
1745 if (@{ $ns->{query_queue} } == @$queue) { 2028 if (@{ $ns->{query_queue} } == @$queue) {
1746 if (@$queue) { 2029 if (@$queue) {
1750 } 2033 }
1751 } 2034 }
1752 }, 2035 },
1753); 2036);
1754 2037
1755=item $client->coro (\&cb) 2038=item $client->async (\&cb)
1756 2039
1757Create a new coroutine, running the specified callback. The coroutine will 2040Create a new coroutine, running the specified callback. The coroutine will
1758be automatically cancelled when the client gets destroyed (e.g. on logout, 2041be automatically cancelled when the client gets destroyed (e.g. on logout,
1759or loss of connection). 2042or loss of connection).
1760 2043
1761=cut 2044=cut
1762 2045
1763sub cf::client::coro { 2046sub cf::client::async {
1764 my ($self, $cb) = @_; 2047 my ($self, $cb) = @_;
1765 2048
1766 my $coro = &cf::async ($cb); 2049 my $coro = &Coro::async ($cb);
1767 2050
1768 $coro->on_destroy (sub { 2051 $coro->on_destroy (sub {
1769 delete $self->{_coro}{$coro+0}; 2052 delete $self->{_coro}{$coro+0};
1770 }); 2053 });
1771 2054
1907The 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
1908using it, it should be unique. 2191using it, it should be unique.
1909 2192
1910=over 4 2193=over 4
1911 2194
1912=item $hashref = cf::db_get $family
1913
1914Return a hashref for use by the extension C<$family>, which can be
1915modified. After modifications, you have to call C<cf::db_dirty> or
1916C<cf::db_sync>.
1917
1918=item $value = cf::db_get $family => $key 2195=item $value = cf::db_get $family => $key
1919 2196
1920Returns a single value from the database 2197Returns a single value from the database.
1921
1922=item cf::db_put $family => $hashref
1923
1924Stores the given family hashref into the database. Updates are delayed, if
1925you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926 2198
1927=item cf::db_put $family => $key => $value 2199=item cf::db_put $family => $key => $value
1928 2200
1929Stores the given C<$value> in the family hash. Updates are delayed, if you 2201Stores the given C<$value> in the family.
1930want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932=item cf::db_dirty
1933
1934Marks the database as dirty, to be updated at a later time.
1935
1936=item cf::db_sync
1937
1938Immediately write the database to disk I<if it is dirty>.
1939 2202
1940=cut 2203=cut
1941 2204
1942our $DB; 2205our $DB;
1943 2206
1944{ 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
1945 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;
1946 2226
1947 sub db_load() { 2227 cf::db_put (board => data => $pst->{board});
1948 $DB = stat $path ? Storable::retrieve $path : { }; 2228 cf::db_put (guildrules => data => $pst->{guildrules});
1949 } 2229 cf::db_put (rent => balance => $pst->{rent}{balance});
2230 BDB::db_env_txn_checkpoint $DB_ENV;
1950 2231
1951 my $pid; 2232 unlink $path;
1952
1953 sub db_save() {
1954 waitpid $pid, 0 if $pid;
1955 if (0 == ($pid = fork)) {
1956 $DB->{_meta}{version} = 1;
1957 Storable::nstore $DB, "$path~";
1958 rename "$path~", $path;
1959 cf::_exit 0 if defined $pid;
1960 } 2233 };
1961 }
1962
1963 my $dirty;
1964
1965 sub db_sync() {
1966 db_save if $dirty;
1967 undef $dirty;
1968 }
1969
1970 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971 db_sync;
1972 });
1973
1974 sub db_dirty() {
1975 $dirty = 1;
1976 $idle->start;
1977 }
1978
1979 sub db_get($;$) {
1980 @_ >= 2
1981 ? $DB->{$_[0]}{$_[1]}
1982 : ($DB->{$_[0]} ||= { })
1983 }
1984
1985 sub db_put($$;$) {
1986 if (@_ >= 3) {
1987 $DB->{$_[0]}{$_[1]} = $_[2];
1988 } else {
1989 $DB->{$_[0]} = $_[1];
1990 }
1991 db_dirty;
1992 }
1993
1994 cf::global->attach (
1995 prio => 10000,
1996 on_cleanup => sub {
1997 db_sync;
1998 }, 2234 }
1999 ); 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 { };
2000} 2252}
2001 2253
2002############################################################################# 2254#############################################################################
2003# 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}
2004 2261
2005sub cfg_load { 2262sub cfg_load {
2006 open my $fh, "<:utf8", cf::confdir . "/config" 2263 open my $fh, "<:utf8", cf::confdir . "/config"
2007 or return; 2264 or return;
2008 2265
2009 local $/; 2266 local $/;
2010 *CFG = YAML::Syck::Load <$fh>; 2267 *CFG = YAML::Syck::Load <$fh>;
2011 2268
2012 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 2269 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013 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
2014 if (exists $CFG{mlockall}) { 2274 if (exists $CFG{mlockall}) {
2015 eval { 2275 eval {
2016 $CFG{mlockall} ? &mlockall : &munlockall 2276 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017 and die "WARNING: m(un)lockall failed: $!\n"; 2277 and die "WARNING: m(un)lockall failed: $!\n";
2018 }; 2278 };
2019 warn $@ if $@; 2279 warn $@ if $@;
2020 } 2280 }
2281}
2282
2283sub init {
2284 init_resources;
2021} 2285}
2022 2286
2023sub main { 2287sub main {
2024 # we must not ever block the main coroutine 2288 # we must not ever block the main coroutine
2025 local $Coro::idle = sub { 2289 local $Coro::idle = sub {
2026 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#
2027 (Coro::unblock_sub { 2291 (async {
2028 Event::one_event; 2292 Event::one_event;
2029 })->(); 2293 })->prio (Coro::PRIO_MAX);
2030 }; 2294 };
2031 2295
2032 cfg_load; 2296 cfg_load;
2033 db_load; 2297 db_init;
2034 load_extensions; 2298 load_extensions;
2299
2300 $TICK_WATCHER->start;
2035 Event::loop; 2301 Event::loop;
2036} 2302}
2037 2303
2038############################################################################# 2304#############################################################################
2039# 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 $make_core;
2360}
2040 2361
2041sub reload() { 2362sub reload() {
2042 # can/must only be called in main 2363 # can/must only be called in main
2043 if ($Coro::current != $Coro::main) { 2364 if ($Coro::current != $Coro::main) {
2044 warn "can only reload from main coroutine\n"; 2365 warn "can only reload from main coroutine";
2045 return; 2366 return;
2046 } 2367 }
2047 2368
2048 warn "reloading..."; 2369 warn "reloading...";
2049 2370
2050 my $guard = freeze_mainloop; 2371 warn "entering sync_job";
2372
2373 cf::sync_job {
2374 cf::write_runtime; # external watchdog should not bark
2051 cf::emergency_save; 2375 cf::emergency_save;
2376 cf::write_runtime; # external watchdog should not bark
2052 2377
2053 eval { 2378 warn "syncing database to disk";
2379 BDB::db_env_txn_checkpoint $DB_ENV;
2380
2054 # 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
2055 2382
2056 # cancel all watchers 2383 warn "cancelling all WF_AUTOCANCEL watchers";
2057 for (Event::all_watchers) { 2384 for (Event::all_watchers) {
2058 $_->cancel if $_->data & WF_AUTOCANCEL; 2385 $_->cancel if $_->data & WF_AUTOCANCEL;
2059 } 2386 }
2060 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
2061 # cancel all extension coros 2397 warn "cancelling all extension coros";
2062 $_->cancel for values %EXT_CORO; 2398 $_->cancel for values %EXT_CORO;
2063 %EXT_CORO = (); 2399 %EXT_CORO = ();
2064 2400
2065 # unload all extensions 2401 warn "removing commands";
2066 for (@exts) { 2402 %COMMAND = ();
2403
2404 warn "removing ext commands";
2405 %EXTCMD = ();
2406
2407 warn "unloading/nuking all extensions";
2408 for my $pkg (@EXTS) {
2067 warn "unloading <$_>"; 2409 warn "... unloading $pkg";
2068 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: $@";
2069 } 2416 }
2070 2417
2418 warn "... nuking $pkg";
2419 Symbol::delete_package $pkg;
2420 }
2421
2071 # unload all modules loaded from $LIBDIR 2422 warn "unloading all perl modules loaded from $LIBDIR";
2072 while (my ($k, $v) = each %INC) { 2423 while (my ($k, $v) = each %INC) {
2073 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2424 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074 2425
2075 warn "removing <$k>"; 2426 warn "... unloading $k";
2076 delete $INC{$k}; 2427 delete $INC{$k};
2077 2428
2078 $k =~ s/\.pm$//; 2429 $k =~ s/\.pm$//;
2079 $k =~ s/\//::/g; 2430 $k =~ s/\//::/g;
2080 2431
2083 } 2434 }
2084 2435
2085 Symbol::delete_package $k; 2436 Symbol::delete_package $k;
2086 } 2437 }
2087 2438
2088 # sync database to disk
2089 cf::db_sync;
2090 IO::AIO::flush;
2091
2092 # get rid of safe::, as good as possible 2439 warn "getting rid of safe::, as good as possible";
2093 Symbol::delete_package "safe::$_" 2440 Symbol::delete_package "safe::$_"
2094 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);
2095 2442
2096 # remove register_script_function callbacks
2097 # TODO
2098
2099 # unload cf.pm "a bit" 2443 warn "unloading cf.pm \"a bit\"";
2100 delete $INC{"cf.pm"}; 2444 delete $INC{"cf.pm"};
2101 2445
2102 # don't, removes xs symbols, too, 2446 # don't, removes xs symbols, too,
2103 # and global variables created in xs 2447 # and global variables created in xs
2104 #Symbol::delete_package __PACKAGE__; 2448 #Symbol::delete_package __PACKAGE__;
2105 2449
2106 # reload cf.pm 2450 warn "unload completed, starting to reload now";
2451
2107 warn "reloading cf.pm"; 2452 warn "reloading cf.pm";
2108 require cf; 2453 require cf;
2109 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2454 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110 2455
2111 # load config and database again 2456 warn "loading config and database again";
2112 cf::cfg_load; 2457 cf::cfg_load;
2113 cf::db_load;
2114 2458
2115 # load extensions
2116 warn "load extensions"; 2459 warn "loading extensions";
2117 cf::load_extensions; 2460 cf::load_extensions;
2118 2461
2119 # reattach attachments to objects 2462 warn "reattaching attachments to objects/players";
2120 warn "reattach";
2121 _global_reattach; 2463 _global_reattach;
2122 }; 2464 warn "reattaching attachments to maps";
2465 reattach $_ for values %MAP;
2123 2466
2124 if ($@) { 2467 warn "loading reloadable resources";
2468 init_resources;
2469
2470 warn "leaving sync_job";
2471
2472 1
2473 } or do {
2125 warn $@; 2474 warn $@;
2126 warn "error while reloading, exiting."; 2475 warn "error while reloading, exiting.";
2127 exit 1; 2476 exit 1;
2128 } 2477 };
2129 2478
2130 warn "reloaded successfully"; 2479 warn "reloaded";
2131}; 2480};
2132 2481
2133############################################################################# 2482our $RELOAD_WATCHER; # used only during reload
2134
2135unless ($LINK_MAP) {
2136 $LINK_MAP = cf::map::new;
2137
2138 $LINK_MAP->width (41);
2139 $LINK_MAP->height (41);
2140 $LINK_MAP->alloc;
2141 $LINK_MAP->path ("{link}");
2142 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145 # dirty hack because... archetypes are not yet loaded
2146 Event->timer (
2147 after => 2,
2148 cb => sub {
2149 $_[0]->w->cancel;
2150
2151 # provide some exits "home"
2152 my $exit = cf::object::new "exit";
2153
2154 $exit->slaying ($EMERGENCY_POSITION->[0]);
2155 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158 $LINK_MAP->insert ($exit->clone, 19, 19);
2159 $LINK_MAP->insert ($exit->clone, 19, 20);
2160 $LINK_MAP->insert ($exit->clone, 19, 21);
2161 $LINK_MAP->insert ($exit->clone, 20, 19);
2162 $LINK_MAP->insert ($exit->clone, 20, 21);
2163 $LINK_MAP->insert ($exit->clone, 21, 19);
2164 $LINK_MAP->insert ($exit->clone, 21, 20);
2165 $LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167 $exit->destroy;
2168 });
2169
2170 $LINK_MAP->{deny_save} = 1;
2171 $LINK_MAP->{deny_reset} = 1;
2172
2173 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174}
2175
2176register "<global>", __PACKAGE__;
2177 2483
2178register_command "reload" => sub { 2484register_command "reload" => sub {
2179 my ($who, $arg) = @_; 2485 my ($who, $arg) = @_;
2180 2486
2181 if ($who->flag (FLAG_WIZ)) { 2487 if ($who->flag (FLAG_WIZ)) {
2182 $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 {
2183 reload; 2498 reload;
2184 $who->message ("end of reload."); 2499 undef $RELOAD_WATCHER;
2500 },
2501 );
2185 } 2502 }
2186}; 2503};
2187 2504
2188unshift @INC, $LIBDIR; 2505unshift @INC, $LIBDIR;
2506
2507my $bug_warning = 0;
2189 2508
2190$TICK_WATCHER = Event->timer ( 2509$TICK_WATCHER = Event->timer (
2191 reentrant => 0, 2510 reentrant => 0,
2511 parked => 1,
2192 prio => 0, 2512 prio => 0,
2193 at => $NEXT_TICK || $TICK, 2513 at => $NEXT_TICK || $TICK,
2194 data => WF_AUTOCANCEL, 2514 data => WF_AUTOCANCEL,
2195 cb => sub { 2515 cb => sub {
2516 if ($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
2196 cf::server_tick; # one server iteration 2524 cf::server_tick; # one server iteration
2197 $RUNTIME += $TICK; 2525 $RUNTIME += $TICK;
2198 $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#
2199 2541
2200 # 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
2201 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2543 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202 2544
2203 $TICK_WATCHER->at ($NEXT_TICK); 2545 $TICK_WATCHER->at ($NEXT_TICK);
2204 $TICK_WATCHER->start; 2546 $TICK_WATCHER->start;
2205 }, 2547 },
2206); 2548);
2207 2549
2550{
2208IO::AIO::max_poll_time $TICK * 0.2; 2551 BDB::max_poll_time $TICK * 0.1;
2209 2552 $BDB_POLL_WATCHER = Event->io (
2210Event->io ( 2553 reentrant => 0,
2211 fd => IO::AIO::poll_fileno, 2554 fd => BDB::poll_fileno,
2212 poll => 'r', 2555 poll => 'r',
2213 prio => 5, 2556 prio => 0,
2214 data => WF_AUTOCANCEL,
2215 cb => \&IO::AIO::poll_cb,
2216);
2217
2218Event->timer (
2219 data => WF_AUTOCANCEL, 2557 data => WF_AUTOCANCEL,
2220 after => 0, 2558 cb => \&BDB::poll_cb,
2221 interval => 10, 2559 );
2222 cb => sub { 2560 BDB::min_parallel 8;
2223 (Coro::unblock_sub { 2561
2224 write_runtime 2562 BDB::set_sync_prepare {
2225 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 $@;
2226 })->(); 2596 };
2227 }, 2597 }
2228); 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}
2229 2614
2230END { cf::emergency_save } 2615END { cf::emergency_save }
2231 2616
22321 26171
2233 2618

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines