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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3 (); 13use Coro 3.5 ();
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
21use Data::Dumper;
20use Digest::MD5; 22use Digest::MD5;
21use Fcntl; 23use Fcntl;
22use IO::AIO 2.31 (); 24use IO::AIO 2.32 ();
23use YAML::Syck (); 25use YAML::Syck ();
24use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25 30
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27 34
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 36$YAML::Syck::ImplicitUnicode = 1;
30 37
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 39
35our %COMMAND = (); 40our %COMMAND = ();
36our %COMMAND_TIME = (); 41our %COMMAND_TIME = ();
42
43our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 44our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps
38 47
48our $RELOAD; # number of reloads so far
39our @EVENT; 49our @EVENT;
40our $LIBDIR = datadir . "/ext"; 50our $LIBDIR = datadir . "/ext";
41 51
42our $TICK = MAX_TIME * 1e-6; 52our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 53our $TICK_WATCHER;
54our $AIO_POLL_WATCHER;
55our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 56our $NEXT_TICK;
45our $NOW; 57our $NOW;
58our $USE_FSYNC = 1; # use fsync to write maps - default off
59
60our $BDB_POLL_WATCHER;
61our $DB_ENV;
46 62
47our %CFG; 63our %CFG;
48 64
49our $UPTIME; $UPTIME ||= time; 65our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 66our $RUNTIME;
51 67
68our %PLAYER; # all users
52our %MAP; # all maps 69our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 70our $LINK_MAP; # the special {link} map, which is always available
54our $RANDOM_MAPS = cf::localdir . "/random"; 71our $RANDOM_MAPS = cf::localdir . "/random";
55our %EXT_CORO; 72our $BDB_ENV_DIR = cf::localdir . "/db";
73
74our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76
77# used to convert map paths into valid unix filenames by replacing / by ∕
78our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56 79
57binmode STDOUT; 80binmode STDOUT;
58binmode STDERR; 81binmode STDERR;
59 82
60# read virtual server time, if available 83# read virtual server time, if available
67mkdir cf::localdir; 90mkdir cf::localdir;
68mkdir cf::localdir . "/" . cf::playerdir; 91mkdir cf::localdir . "/" . cf::playerdir;
69mkdir cf::localdir . "/" . cf::tmpdir; 92mkdir cf::localdir . "/" . cf::tmpdir;
70mkdir cf::localdir . "/" . cf::uniquedir; 93mkdir cf::localdir . "/" . cf::uniquedir;
71mkdir $RANDOM_MAPS; 94mkdir $RANDOM_MAPS;
95mkdir $BDB_ENV_DIR;
72 96
73# a special map that is always available
74our $LINK_MAP;
75our $EMERGENCY_POSITION; 97our $EMERGENCY_POSITION;
98
99sub cf::map::normalise;
76 100
77############################################################################# 101#############################################################################
78 102
79=head2 GLOBAL VARIABLES 103=head2 GLOBAL VARIABLES
80 104
104 128
105=item %cf::CFG 129=item %cf::CFG
106 130
107Configuration for the server, loaded from C</etc/crossfire/config>, or 131Configuration for the server, loaded from C</etc/crossfire/config>, or
108from wherever your confdir points to. 132from wherever your confdir points to.
133
134=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
135
136These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
137or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
138processing has been done. Call C<< ->wait >> on them to maximise the
139window of cpu time available, or simply to synchronise to the server tick.
109 140
110=back 141=back
111 142
112=cut 143=cut
113 144
117 utf8::encode $msg; 148 utf8::encode $msg;
118 149
119 $msg .= "\n" 150 $msg .= "\n"
120 unless $msg =~ /\n$/; 151 unless $msg =~ /\n$/;
121 152
122 LOG llevError, "cfperl: $msg"; 153 LOG llevError, $msg;
123 }; 154 };
124} 155}
125 156
126@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 157@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 158@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
145 176
146$Event::DIED = sub { 177$Event::DIED = sub {
147 warn "error in event callback: @_"; 178 warn "error in event callback: @_";
148}; 179};
149 180
150my %ext_pkg;
151my @exts;
152my @hook;
153
154=head2 UTILITY FUNCTIONS 181=head2 UTILITY FUNCTIONS
155 182
156=over 4 183=over 4
157 184
185=item dumpval $ref
186
158=cut 187=cut
188
189sub dumpval {
190 eval {
191 local $SIG{__DIE__};
192 my $d;
193 if (1) {
194 $d = new Data::Dumper([$_[0]], ["*var"]);
195 $d->Terse(1);
196 $d->Indent(2);
197 $d->Quotekeys(0);
198 $d->Useqq(1);
199 #$d->Bless(...);
200 $d->Seen($_[1]) if @_ > 1;
201 $d = $d->Dump();
202 }
203 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204 $d
205 } || "[unable to dump $_[0]: '$@']";
206}
159 207
160use JSON::Syck (); # TODO# replace by JSON::PC once working 208use JSON::Syck (); # TODO# replace by JSON::PC once working
161 209
162=item $ref = cf::from_json $json 210=item $ref = cf::from_json $json
163 211
179sub to_json($) { 227sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 228 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 229 JSON::Syck::Dump $_[0]
182} 230}
183 231
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 232=item cf::lock_wait $string
207 233
208Wait until the given lock is available. See cf::lock_acquire. 234Wait until the given lock is available. See cf::lock_acquire.
209 235
210=item my $lock = cf::lock_acquire $string 236=item my $lock = cf::lock_acquire $string
211 237
212Wait until the given lock is available and then acquires it and returns 238Wait 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, 239a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214for example when the coroutine gets canceled), the lock is automatically 240for example when the coroutine gets canceled), the lock is automatically
215returned. 241returned.
216 242
217Lock names should begin with a unique identifier (for example, cf::map::find 243Lock names should begin with a unique identifier (for example, cf::map::find
218uses map_find and cf::map::load uses map_load). 244uses map_find and cf::map::load uses map_load).
237 # wait, to be sure we are not locked 263 # wait, to be sure we are not locked
238 lock_wait $key; 264 lock_wait $key;
239 265
240 $LOCK{$key} = []; 266 $LOCK{$key} = [];
241 267
242 cf::guard { 268 Coro::guard {
243 # wake up all waiters, to be on the safe side 269 # wake up all waiters, to be on the safe side
244 $_->ready for @{ delete $LOCK{$key} }; 270 $_->ready for @{ delete $LOCK{$key} };
245 } 271 }
246} 272}
247 273
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 { 274sub freeze_mainloop {
265 return unless $TICK_WATCHER->is_active; 275 return unless $TICK_WATCHER->is_active;
266 276
267 my $guard = guard { $TICK_WATCHER->start }; 277 my $guard = Coro::guard {
278 $TICK_WATCHER->start;
279 };
268 $TICK_WATCHER->stop; 280 $TICK_WATCHER->stop;
269 $guard 281 $guard
270} 282}
283
284=item cf::async { BLOCK }
285
286Currently the same as Coro::async_pool, meaning you cannot use
287C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
288thing you are allowed to do is call C<prio> on it.
289
290=cut
291
292BEGIN { *async = \&Coro::async_pool }
271 293
272=item cf::sync_job { BLOCK } 294=item cf::sync_job { BLOCK }
273 295
274The design of crossfire+ requires that the main coro ($Coro::main) is 296The design of crossfire+ requires that the main coro ($Coro::main) is
275always able to handle events or runnable, as crossfire+ is only partly 297always able to handle events or runnable, as crossfire+ is only partly
294 my $freeze_guard = freeze_mainloop; 316 my $freeze_guard = freeze_mainloop;
295 317
296 my $busy = 1; 318 my $busy = 1;
297 my @res; 319 my @res;
298 320
299 (Coro::async { 321 (async {
300 @res = eval { $job->() }; 322 @res = eval { $job->() };
301 warn $@ if $@; 323 warn $@ if $@;
302 undef $busy; 324 undef $busy;
303 })->prio (Coro::PRIO_MAX); 325 })->prio (Coro::PRIO_MAX);
304 326
305 while ($busy) { 327 while ($busy) {
306 Coro::cede_notself; 328 Coro::cede or Event::one_event;
307 Event::one_event unless Coro::nready;
308 } 329 }
309 330
310 wantarray ? @res : $res[0] 331 wantarray ? @res : $res[0]
311 } else { 332 } else {
312 # we are in another coroutine, how wonderful, everything just works 333 # we are in another coroutine, how wonderful, everything just works
313 334
314 $job->() 335 $job->()
315 } 336 }
316} 337}
317 338
318=item $coro = cf::coro { BLOCK } 339=item $coro = cf::async_ext { BLOCK }
319 340
320Creates and returns a new coro. This coro is automcatially being canceled 341Like async, but this coro is automatically being canceled when the
321when the extension calling this is being unloaded. 342extension calling this is being unloaded.
322 343
323=cut 344=cut
324 345
325sub coro(&) { 346sub async_ext(&) {
326 my $cb = shift; 347 my $cb = shift;
327 348
328 my $coro = &cf::async ($cb); 349 my $coro = &Coro::async ($cb);
329 350
330 $coro->on_destroy (sub { 351 $coro->on_destroy (sub {
331 delete $EXT_CORO{$coro+0}; 352 delete $EXT_CORO{$coro+0};
332 }); 353 });
333 $EXT_CORO{$coro+0} = $coro; 354 $EXT_CORO{$coro+0} = $coro;
334 355
335 $coro 356 $coro
336} 357}
337 358
338sub write_runtime { 359sub write_runtime {
360 my $guard = cf::lock_acquire "write_runtime";
361
339 my $runtime = cf::localdir . "/runtime"; 362 my $runtime = cf::localdir . "/runtime";
340 363
341 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 364 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342 or return; 365 or return;
343 366
367 my $value = $cf::RUNTIME + 90 + 10;
344 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 368 # 10 is the runtime save interval, for a monotonic clock
369 # 60 allows for the watchdog to kill the server.
370
345 (aio_write $fh, 0, (length $value), $value, 0) <= 0 371 (aio_write $fh, 0, (length $value), $value, 0) <= 0
346 and return; 372 and return;
347 373
374 # always fsync - this file is important
348 aio_fsync $fh 375 aio_fsync $fh
349 and return; 376 and return;
350 377
351 close $fh 378 close $fh
352 or return; 379 or return;
358} 385}
359 386
360=back 387=back
361 388
362=cut 389=cut
363
364#############################################################################
365
366package cf::path;
367
368sub new {
369 my ($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;
483 390
484############################################################################# 391#############################################################################
485 392
486=head2 ATTACHABLE OBJECTS 393=head2 ATTACHABLE OBJECTS
487 394
613our @CB_TYPE = (); # registry for type (cf-object class) based events 520our @CB_TYPE = (); # registry for type (cf-object class) based events
614our @CB_MAP = (); 521our @CB_MAP = ();
615 522
616my %attachment; 523my %attachment;
617 524
525sub cf::attachable::thawer_merge {
526 # simply override everything except _meta
527 local $_[0]{_meta};
528 %{$_[0]} = %{$_[1]};
529}
530
618sub _attach_cb($$$$) { 531sub _attach_cb($$$$) {
619 my ($registry, $event, $prio, $cb) = @_; 532 my ($registry, $event, $prio, $cb) = @_;
620 533
621 use sort 'stable'; 534 use sort 'stable';
622 535
793# object support 706# object support
794 707
795sub reattach { 708sub reattach {
796 # basically do the same as instantiate, without calling instantiate 709 # basically do the same as instantiate, without calling instantiate
797 my ($obj) = @_; 710 my ($obj) = @_;
711
712 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798 713
799 my $registry = $obj->registry; 714 my $registry = $obj->registry;
800 715
801 @$registry = (); 716 @$registry = ();
802 717
849 $filename, length $$rdata, scalar @$objs; 764 $filename, length $$rdata, scalar @$objs;
850 765
851 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 766 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852 chmod SAVE_MODE, $fh; 767 chmod SAVE_MODE, $fh;
853 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 768 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854 aio_fsync $fh; 769 aio_fsync $fh if $cf::USE_FSYNC;
855 close $fh; 770 close $fh;
856 771
857 if (@$objs) { 772 if (@$objs) {
858 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 773 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859 chmod SAVE_MODE, $fh; 774 chmod SAVE_MODE, $fh;
860 my $data = Storable::nfreeze { version => 1, objs => $objs }; 775 my $data = Storable::nfreeze { version => 1, objs => $objs };
861 aio_write $fh, 0, (length $data), $data, 0; 776 aio_write $fh, 0, (length $data), $data, 0;
862 aio_fsync $fh; 777 aio_fsync $fh if $cf::USE_FSYNC;
863 close $fh; 778 close $fh;
864 aio_rename "$filename.pst~", "$filename.pst"; 779 aio_rename "$filename.pst~", "$filename.pst";
865 } 780 }
866 } else { 781 } else {
867 aio_unlink "$filename.pst"; 782 aio_unlink "$filename.pst";
934=cut 849=cut
935 850
936sub register_extcmd { 851sub register_extcmd {
937 my ($name, $cb) = @_; 852 my ($name, $cb) = @_;
938 853
939 my $caller = caller;
940 #warn "registering extcmd '$name' to '$caller'";
941
942 $EXTCMD{$name} = [$cb, $caller]; 854 $EXTCMD{$name} = $cb;
943} 855}
944 856
945cf::player->attach ( 857cf::player->attach (
946 on_command => sub { 858 on_command => sub {
947 my ($pl, $name, $params) = @_; 859 my ($pl, $name, $params) = @_;
960 872
961 my $msg = eval { from_json $buf }; 873 my $msg = eval { from_json $buf };
962 874
963 if (ref $msg) { 875 if (ref $msg) {
964 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 876 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965 if (my %reply = $cb->[0]->($pl, $msg)) { 877 if (my %reply = $cb->($pl, $msg)) {
966 $pl->ext_reply ($msg->{msgid}, %reply); 878 $pl->ext_reply ($msg->{msgid}, %reply);
967 } 879 }
968 } 880 }
969 } else { 881 } else {
970 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 882 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
972 884
973 cf::override; 885 cf::override;
974 }, 886 },
975); 887);
976 888
977sub register {
978 my ($base, $pkg) = @_;
979
980 #TODO
981}
982
983sub load_extension { 889sub load_extension {
984 my ($path) = @_; 890 my ($path) = @_;
985 891
986 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 892 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
987 my $base = $1; 893 my $base = $1;
988 my $pkg = $1; 894 my $pkg = $1;
989 $pkg =~ s/[^[:word:]]/_/g; 895 $pkg =~ s/[^[:word:]]/_/g;
990 $pkg = "ext::$pkg"; 896 $pkg = "ext::$pkg";
991 897
992 warn "loading '$path' into '$pkg'\n"; 898 warn "... loading '$path' into '$pkg'\n";
993 899
994 open my $fh, "<:utf8", $path 900 open my $fh, "<:utf8", $path
995 or die "$path: $!"; 901 or die "$path: $!";
996 902
997 my $source = 903 my $source =
998 "package $pkg; use strict; use utf8;\n" 904 "package $pkg; use strict; use utf8;\n"
999 . "#line 1 \"$path\"\n{\n" 905 . "#line 1 \"$path\"\n{\n"
1000 . (do { local $/; <$fh> }) 906 . (do { local $/; <$fh> })
1001 . "\n};\n1"; 907 . "\n};\n1";
1002 908
1003 eval $source 909 unless (eval $source) {
1004 or die $@ ? "$path: $@\n" 910 my $msg = $@ ? "$path: $@\n"
1005 : "extension disabled.\n"; 911 : "extension disabled.\n";
1006 912 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007 push @exts, $pkg; 913 warn $@;
1008 $ext_pkg{$base} = $pkg; 914 warn "mandatory extension failed to load, exiting.\n";
1009 915 exit 1;
1010# no strict 'refs'; 916 }
1011# @{"$pkg\::ISA"} = ext::; 917 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# } 918 }
1026 919
1027 # remove commands 920 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} 921}
1052 922
1053sub load_extensions { 923sub load_extensions {
1054 for my $ext (<$LIBDIR/*.ext>) { 924 for my $ext (<$LIBDIR/*.ext>) {
1055 next unless -r $ext; 925 next unless -r $ext;
1059 } or warn "$ext not loaded: $@"; 929 } or warn "$ext not loaded: $@";
1060 } 930 }
1061} 931}
1062 932
1063############################################################################# 933#############################################################################
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 934
1101=head2 CORE EXTENSIONS 935=head2 CORE EXTENSIONS
1102 936
1103Functions and methods that extend core crossfire objects. 937Functions and methods that extend core crossfire objects.
1104 938
939=cut
940
941package cf::player;
942
943use Coro::AIO;
944
1105=head3 cf::player 945=head3 cf::player
1106 946
1107=over 4 947=over 4
1108 948
1109=item cf::player::exists $login 949=item cf::player::find $login
1110 950
1111Returns true when the given account exists. 951Returns the given player object, loading it if necessary (might block).
1112 952
1113=cut 953=cut
1114 954
1115sub cf::player::exists($) { 955sub playerdir($) {
1116 cf::player::find $_[0] 956 cf::localdir
1117 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 957 . "/"
958 . cf::playerdir
959 . "/"
960 . (ref $_[0] ? $_[0]->ob->name : $_[0])
961}
962
963sub path($) {
964 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965
966 (playerdir $login) . "/$login.pl"
967}
968
969sub find_active($) {
970 $cf::PLAYER{$_[0]}
971 and $cf::PLAYER{$_[0]}->active
972 and $cf::PLAYER{$_[0]}
973}
974
975sub exists($) {
976 my ($login) = @_;
977
978 $cf::PLAYER{$login}
979 or cf::sync_job { !aio_stat path $login }
980}
981
982sub find($) {
983 return $cf::PLAYER{$_[0]} || do {
984 my $login = $_[0];
985
986 my $guard = cf::lock_acquire "user_find:$login";
987
988 $cf::PLAYER{$_[0]} || do {
989 my $pl = load_pl path $login
990 or return;
991 $cf::PLAYER{$login} = $pl
992 }
993 }
994}
995
996sub save($) {
997 my ($pl) = @_;
998
999 return if $pl->{deny_save};
1000
1001 my $path = path $pl;
1002 my $guard = cf::lock_acquire "user_save:$path";
1003
1004 return if $pl->{deny_save};
1005
1006 aio_mkdir playerdir $pl, 0770;
1007 $pl->{last_save} = $cf::RUNTIME;
1008
1009 $pl->save_pl ($path);
1010 Coro::cede;
1011}
1012
1013sub new($) {
1014 my ($login) = @_;
1015
1016 my $self = create;
1017
1018 $self->ob->name ($login);
1019 $self->{deny_save} = 1;
1020
1021 $cf::PLAYER{$login} = $self;
1022
1023 $self
1024}
1025
1026=item $pl->quit_character
1027
1028Nukes the player without looking back. If logged in, the connection will
1029be destroyed. May block for a long time.
1030
1031=cut
1032
1033sub quit_character {
1034 my ($pl) = @_;
1035
1036 my $name = $pl->ob->name;
1037
1038 $pl->{deny_save} = 1;
1039 $pl->password ("*"); # this should lock out the player until we nuked the dir
1040
1041 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1042 $pl->deactivate;
1043 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1044 $pl->ns->destroy if $pl->ns;
1045
1046 my $path = playerdir $pl;
1047 my $temp = "$path~$cf::RUNTIME~deleting~";
1048 aio_rename $path, $temp;
1049 delete $cf::PLAYER{$pl->ob->name};
1050 $pl->destroy;
1051
1052 my $prefix = qr<^~\Q$name\E/>;
1053
1054 # nuke player maps
1055 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1056
1057 IO::AIO::aio_rmtree $temp;
1058}
1059
1060=item $pl->kick
1061
1062Kicks a player out of the game. This destroys the connection.
1063
1064=cut
1065
1066sub kick {
1067 my ($pl, $kicker) = @_;
1068
1069 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1070 $pl->killer ("kicked");
1071 $pl->ns->destroy;
1072}
1073
1074=item cf::player::list_logins
1075
1076Returns am arrayref of all valid playernames in the system, can take a
1077while and may block, so not sync_job-capable, ever.
1078
1079=cut
1080
1081sub list_logins {
1082 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1083 or return [];
1084
1085 my @logins;
1086
1087 for my $login (@$dirs) {
1088 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1089 aio_read $fh, 0, 512, my $buf, 0 or next;
1090 $buf !~ /^password -------------$/m or next; # official not-valid tag
1091
1092 utf8::decode $login;
1093 push @logins, $login;
1094 }
1095
1096 \@logins
1097}
1098
1099=item $player->maps
1100
1101Returns an arrayref of map paths that are private for this
1102player. May block.
1103
1104=cut
1105
1106sub maps($) {
1107 my ($pl) = @_;
1108
1109 $pl = ref $pl ? $pl->ob->name : $pl;
1110
1111 my $files = aio_readdir playerdir $pl
1112 or return;
1113
1114 my @paths;
1115
1116 for (@$files) {
1117 utf8::decode $_;
1118 next if /\.(?:pl|pst)$/;
1119 next unless /^$PATH_SEP/o;
1120
1121 push @paths, cf::map::normalise "~$pl/$_";
1122 }
1123
1124 \@paths
1118} 1125}
1119 1126
1120=item $player->ext_reply ($msgid, $msgtype, %msg) 1127=item $player->ext_reply ($msgid, $msgtype, %msg)
1121 1128
1122Sends an ext reply to the player. 1129Sends an ext reply to the player.
1123 1130
1124=cut 1131=cut
1125 1132
1126sub cf::player::ext_reply($$$%) { 1133sub ext_reply($$$%) {
1127 my ($self, $id, %msg) = @_; 1134 my ($self, $id, %msg) = @_;
1128 1135
1129 $msg{msgid} = $id; 1136 $msg{msgid} = $id;
1130 1137
1131 $self->send ("ext " . to_json \%msg); 1138 $self->send ("ext " . cf::to_json \%msg);
1132} 1139}
1140
1141package cf;
1133 1142
1134=back 1143=back
1135 1144
1136 1145
1137=head3 cf::map 1146=head3 cf::map
1143package cf::map; 1152package cf::map;
1144 1153
1145use Fcntl; 1154use Fcntl;
1146use Coro::AIO; 1155use Coro::AIO;
1147 1156
1157use overload
1158 '""' => \&as_string,
1159 fallback => 1;
1160
1148our $MAX_RESET = 3600; 1161our $MAX_RESET = 3600;
1149our $DEFAULT_RESET = 3000; 1162our $DEFAULT_RESET = 3000;
1150 1163
1151sub generate_random_map { 1164sub generate_random_map {
1152 my ($path, $rmp) = @_; 1165 my ($self, $rmp) = @_;
1153
1154 # mit "rum" bekleckern, nicht 1166 # mit "rum" bekleckern, nicht
1155 cf::map::_create_random_map 1167 $self->_create_random_map (
1156 $path,
1157 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1168 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1169 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1170 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160 $rmp->{exit_on_final_map}, 1171 $rmp->{exit_on_final_map},
1161 $rmp->{xsize}, $rmp->{ysize}, 1172 $rmp->{xsize}, $rmp->{ysize},
1162 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1173 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1174 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1175 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1176 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1177 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167 (cf::region::find $rmp->{region}) 1178 (cf::region::find $rmp->{region}), $rmp->{custom}
1179 )
1180}
1181
1182=item cf::map->register ($regex, $prio)
1183
1184Register a handler for the map path matching the given regex at the
1185givne priority (higher is better, built-in handlers have priority 0, the
1186default).
1187
1188=cut
1189
1190sub register {
1191 my (undef, $regex, $prio) = @_;
1192 my $pkg = caller;
1193
1194 no strict;
1195 push @{"$pkg\::ISA"}, __PACKAGE__;
1196
1197 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1198}
1199
1200# also paths starting with '/'
1201$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1202
1203sub thawer_merge {
1204 my ($self, $merge) = @_;
1205
1206 # we have to keep some variables in memory intact
1207 local $self->{path};
1208 local $self->{load_path};
1209 local $self->{deny_save};
1210 local $self->{deny_reset};
1211
1212 $self->SUPER::thawer_merge ($merge);
1213}
1214
1215sub normalise {
1216 my ($path, $base) = @_;
1217
1218 $path = "$path"; # make sure its a string
1219
1220 $path =~ s/\.map$//;
1221
1222 # map plan:
1223 #
1224 # /! non-realised random map exit (special hack!)
1225 # {... are special paths that are not being touched
1226 # ?xxx/... are special absolute paths
1227 # ?random/... random maps
1228 # /... normal maps
1229 # ~user/... per-player map of a specific user
1230
1231 $path =~ s/$PATH_SEP/\//go;
1232
1233 # treat it as relative path if it starts with
1234 # something that looks reasonable
1235 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1236 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1237
1238 $base =~ s{[^/]+/?$}{};
1239 $path = "$base/$path";
1240 }
1241
1242 for ($path) {
1243 redo if s{//}{/};
1244 redo if s{/\.?/}{/};
1245 redo if s{/[^/]+/\.\./}{/};
1246 }
1247
1248 $path
1249}
1250
1251sub new_from_path {
1252 my (undef, $path, $base) = @_;
1253
1254 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1255
1256 $path = normalise $path, $base;
1257
1258 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1259 if ($path =~ $EXT_MAP{$pkg}[1]) {
1260 my $self = bless cf::map::new, $pkg;
1261 $self->{path} = $path; $self->path ($path);
1262 $self->init; # pass $1 etc.
1263 return $self;
1264 }
1265 }
1266
1267 Carp::carp "unable to resolve path '$path' (base '$base').";
1268 ()
1269}
1270
1271sub init {
1272 my ($self) = @_;
1273
1274 $self
1275}
1276
1277sub as_string {
1278 my ($self) = @_;
1279
1280 "$self->{path}"
1281}
1282
1283# the displayed name, this is a one way mapping
1284sub visible_name {
1285 &as_string
1286}
1287
1288# the original (read-only) location
1289sub load_path {
1290 my ($self) = @_;
1291
1292 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1293}
1294
1295# the temporary/swap location
1296sub save_path {
1297 my ($self) = @_;
1298
1299 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1301}
1302
1303# the unique path, undef == no special unique path
1304sub uniq_path {
1305 my ($self) = @_;
1306
1307 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1168} 1309}
1169 1310
1170# and all this just because we cannot iterate over 1311# and all this just because we cannot iterate over
1171# all maps in C++... 1312# all maps in C++...
1172sub change_all_map_light { 1313sub change_all_map_light {
1174 1315
1175 $_->change_map_light ($change) 1316 $_->change_map_light ($change)
1176 for grep $_->outdoor, values %cf::MAP; 1317 for grep $_->outdoor, values %cf::MAP;
1177} 1318}
1178 1319
1320sub unlink_save {
1321 my ($self) = @_;
1322
1323 utf8::encode (my $save = $self->save_path);
1324 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1325 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1326}
1327
1179sub try_load_header($) { 1328sub load_header_from($) {
1180 my ($path) = @_; 1329 my ($self, $path) = @_;
1181 1330
1182 utf8::encode $path; 1331 utf8::encode $path;
1183 aio_open $path, O_RDONLY, 0 1332 #aio_open $path, O_RDONLY, 0
1333 # or return;
1334
1335 $self->_load_header ($path)
1184 or return; 1336 or return;
1185 1337
1186 my $map = cf::map::new 1338 $self->{load_path} = $path;
1339
1340 1
1341}
1342
1343sub load_header_orig {
1344 my ($self) = @_;
1345
1346 $self->load_header_from ($self->load_path)
1347}
1348
1349sub load_header_temp {
1350 my ($self) = @_;
1351
1352 $self->load_header_from ($self->save_path)
1353}
1354
1355sub prepare_temp {
1356 my ($self) = @_;
1357
1358 $self->last_access ((delete $self->{last_access})
1359 || $cf::RUNTIME); #d#
1360 # safety
1361 $self->{instantiate_time} = $cf::RUNTIME
1362 if $self->{instantiate_time} > $cf::RUNTIME;
1363}
1364
1365sub prepare_orig {
1366 my ($self) = @_;
1367
1368 $self->{load_original} = 1;
1369 $self->{instantiate_time} = $cf::RUNTIME;
1370 $self->last_access ($cf::RUNTIME);
1371 $self->instantiate;
1372}
1373
1374sub load_header {
1375 my ($self) = @_;
1376
1377 if ($self->load_header_temp) {
1378 $self->prepare_temp;
1379 } else {
1380 $self->load_header_orig
1187 or return; 1381 or return;
1382 $self->prepare_orig;
1383 }
1188 1384
1189 $map->load_header ($path) 1385 1
1190 or return;
1191
1192 $map->{load_path} = $path;
1193
1194 $map
1195} 1386}
1196 1387
1197sub find; 1388sub find;
1198sub find { 1389sub find {
1199 my ($path, $origin) = @_; 1390 my ($path, $origin) = @_;
1200 1391
1201 #warn "find<$path,$origin>\n";#d#
1202
1203 $path = new cf::path $path, $origin && $origin->path; 1392 $path = normalise $path, $origin && $origin->path;
1204 my $key = $path->as_string;
1205 1393
1206 cf::lock_wait "map_find:$key"; 1394 cf::lock_wait "map_find:$path";
1207 1395
1208 $cf::MAP{$key} || do { 1396 $cf::MAP{$path} || do {
1209 my $guard = cf::lock_acquire "map_find:$key"; 1397 my $guard = cf::lock_acquire "map_find:$path";
1210 1398 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; 1399 or return;
1230 1400
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; 1401 $map->{last_save} = $cf::RUNTIME;
1243 1402
1244 Coro::cede; 1403 $map->load_header
1404 or return;
1245 1405
1246 if ($map->should_reset) { 1406 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1407 # doing this can freeze the server in a sync job, obviously
1408 #$cf::WAIT_FOR_TICK->wait;
1247 $map->reset; 1409 $map->reset;
1248 undef $guard; 1410 undef $guard;
1249 $map = find $path 1411 return find $path;
1250 or return;
1251 } 1412 }
1252 1413
1253 $cf::MAP{$key} = $map 1414 $cf::MAP{$path} = $map
1254 } 1415 }
1255} 1416}
1417
1418sub pre_load { }
1419sub post_load { }
1256 1420
1257sub load { 1421sub load {
1258 my ($self) = @_; 1422 my ($self) = @_;
1259 1423
1424 local $self->{deny_reset} = 1; # loading can take a long time
1425
1260 my $path = $self->{path}; 1426 my $path = $self->{path};
1261 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1427 my $guard = cf::lock_acquire "map_load:$path";
1262 1428
1263 return if $self->in_memory != cf::MAP_SWAPPED; 1429 return if $self->in_memory != cf::MAP_SWAPPED;
1264 1430
1265 $self->in_memory (cf::MAP_LOADING); 1431 $self->in_memory (cf::MAP_LOADING);
1266 1432
1267 $self->alloc; 1433 $self->alloc;
1434
1435 $self->pre_load;
1436
1268 $self->load_objects ($self->{load_path}, 1) 1437 $self->_load_objects ($self->{load_path}, 1)
1269 or return; 1438 or return;
1270 1439
1271 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1440 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272 if delete $self->{load_original}; 1441 if delete $self->{load_original};
1273 1442
1274 if (my $uniq = $path->uniq_path) { 1443 if (my $uniq = $self->uniq_path) {
1275 utf8::encode $uniq; 1444 utf8::encode $uniq;
1276 if (aio_open $uniq, O_RDONLY, 0) { 1445 if (aio_open $uniq, O_RDONLY, 0) {
1277 $self->clear_unique_items; 1446 $self->clear_unique_items;
1278 $self->load_objects ($uniq, 0); 1447 $self->_load_objects ($uniq, 0);
1279 } 1448 }
1280 } 1449 }
1281 1450
1282 Coro::cede; 1451 Coro::cede;
1283 1452
1284 # now do the right thing for maps 1453 # now do the right thing for maps
1285 $self->link_multipart_objects; 1454 $self->link_multipart_objects;
1286 1455
1287 if ($self->{path}->is_style_map) { 1456 unless ($self->{deny_activate}) {
1288 $self->{deny_save} = 1; 1457 $self->decay_objects;
1289 $self->{deny_reset} = 1;
1290 } else {
1291 $self->fix_auto_apply; 1458 $self->fix_auto_apply;
1292 $self->decay_objects;
1293 $self->update_buttons; 1459 $self->update_buttons;
1460 Coro::cede;
1294 $self->set_darkness_map; 1461 $self->set_darkness_map;
1295 $self->difficulty ($self->estimate_difficulty) 1462 $self->difficulty ($self->estimate_difficulty)
1296 unless $self->difficulty; 1463 unless $self->difficulty;
1464 Coro::cede;
1297 $self->activate; 1465 $self->activate;
1298 } 1466 }
1299 1467
1300 Coro::cede; 1468 $self->post_load;
1301 1469
1302 $self->in_memory (cf::MAP_IN_MEMORY); 1470 $self->in_memory (cf::MAP_IN_MEMORY);
1471}
1472
1473sub customise_for {
1474 my ($self, $ob) = @_;
1475
1476 return find "~" . $ob->name . "/" . $self->{path}
1477 if $self->per_player;
1478
1479 $self
1480}
1481
1482# find and load all maps in the 3x3 area around a map
1483sub load_diag {
1484 my ($map) = @_;
1485
1486 my @diag; # diagonal neighbours
1487
1488 for (0 .. 3) {
1489 my $neigh = $map->tile_path ($_)
1490 or next;
1491 $neigh = find $neigh, $map
1492 or next;
1493 $neigh->load;
1494
1495 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1496 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1497 }
1498
1499 for (@diag) {
1500 my $neigh = find @$_
1501 or next;
1502 $neigh->load;
1503 }
1303} 1504}
1304 1505
1305sub find_sync { 1506sub find_sync {
1306 my ($path, $origin) = @_; 1507 my ($path, $origin) = @_;
1307 1508
1308 cf::sync_job { cf::map::find $path, $origin } 1509 cf::sync_job { find $path, $origin }
1309} 1510}
1310 1511
1311sub do_load_sync { 1512sub do_load_sync {
1312 my ($map) = @_; 1513 my ($map) = @_;
1313 1514
1314 cf::sync_job { $map->load }; 1515 cf::sync_job { $map->load };
1315} 1516}
1316 1517
1518our %MAP_PREFETCH;
1519our $MAP_PREFETCHER = undef;
1520
1521sub find_async {
1522 my ($path, $origin) = @_;
1523
1524 $path = normalise $path, $origin && $origin->{path};
1525
1526 if (my $map = $cf::MAP{$path}) {
1527 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1528 }
1529
1530 undef $MAP_PREFETCH{$path};
1531 $MAP_PREFETCHER ||= cf::async {
1532 while (%MAP_PREFETCH) {
1533 for my $path (keys %MAP_PREFETCH) {
1534 my $map = find $path
1535 or next;
1536 $map->load;
1537
1538 delete $MAP_PREFETCH{$path};
1539 }
1540 }
1541 undef $MAP_PREFETCHER;
1542 };
1543 $MAP_PREFETCHER->prio (6);
1544
1545 ()
1546}
1547
1317sub save { 1548sub save {
1318 my ($self) = @_; 1549 my ($self) = @_;
1319 1550
1551 my $lock = cf::lock_acquire "map_data:" . $self->path;
1552
1320 $self->{last_save} = $cf::RUNTIME; 1553 $self->{last_save} = $cf::RUNTIME;
1321 1554
1322 return unless $self->dirty; 1555 return unless $self->dirty;
1323 1556
1324 my $save = $self->{path}->save_path; utf8::encode $save; 1557 my $save = $self->save_path; utf8::encode $save;
1325 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1558 my $uniq = $self->uniq_path; utf8::encode $uniq;
1326 1559
1327 $self->{load_path} = $save; 1560 $self->{load_path} = $save;
1328 1561
1329 return if $self->{deny_save}; 1562 return if $self->{deny_save};
1330 1563
1331 local $self->{last_access} = $self->last_access;#d# 1564 local $self->{last_access} = $self->last_access;#d#
1332 1565
1566 cf::async {
1567 $_->contr->save for $self->players;
1568 };
1569
1333 if ($uniq) { 1570 if ($uniq) {
1334 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1571 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335 $self->save_objects ($uniq, cf::IO_UNIQUES); 1572 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1336 } else { 1573 } else {
1337 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1574 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338 } 1575 }
1339} 1576}
1340 1577
1341sub swap_out { 1578sub swap_out {
1342 my ($self) = @_; 1579 my ($self) = @_;
1343 1580
1344 # save first because save cedes 1581 # save first because save cedes
1345 $self->save; 1582 $self->save;
1583
1584 my $lock = cf::lock_acquire "map_data:" . $self->path;
1346 1585
1347 return if $self->players; 1586 return if $self->players;
1348 return if $self->in_memory != cf::MAP_IN_MEMORY; 1587 return if $self->in_memory != cf::MAP_IN_MEMORY;
1349 return if $self->{deny_save}; 1588 return if $self->{deny_save};
1350 1589
1354 1593
1355sub reset_at { 1594sub reset_at {
1356 my ($self) = @_; 1595 my ($self) = @_;
1357 1596
1358 # TODO: safety, remove and allow resettable per-player maps 1597 # TODO: safety, remove and allow resettable per-player maps
1359 return 1e99 if $self->{path}{user_rel}; 1598 return 1e99 if $self->isa ("ext::map_per_player");#d#
1360 return 1e99 if $self->{deny_reset}; 1599 return 1e99 if $self->{deny_reset};
1361 1600
1362 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1601 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1602 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364 1603
1369 my ($self) = @_; 1608 my ($self) = @_;
1370 1609
1371 $self->reset_at <= $cf::RUNTIME 1610 $self->reset_at <= $cf::RUNTIME
1372} 1611}
1373 1612
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 { 1613sub reset {
1396 my ($self) = @_; 1614 my ($self) = @_;
1397 1615
1616 my $lock = cf::lock_acquire "map_data:$self->{path}";
1617
1398 return if $self->players; 1618 return if $self->players;
1399 return if $self->{path}{user_rel};#d# 1619 return if $self->isa ("ext::map_per_player");#d#
1400 1620
1401 warn "resetting map ", $self->path;#d# 1621 warn "resetting map ", $self->path;#d#
1402 1622
1623 $self->in_memory (cf::MAP_SWAPPED);
1624
1625 # need to save uniques path
1626 unless ($self->{deny_save}) {
1627 my $uniq = $self->uniq_path; utf8::encode $uniq;
1628
1629 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1630 if $uniq;
1631 }
1632
1403 delete $cf::MAP{$self->path}; 1633 delete $cf::MAP{$self->path};
1634
1635 $self->clear;
1404 1636
1405 $_->clear_links_to ($self) for values %cf::MAP; 1637 $_->clear_links_to ($self) for values %cf::MAP;
1406 1638
1407 $self->unlink_save; 1639 $self->unlink_save;
1408 $self->destroy; 1640 $self->destroy;
1411my $nuke_counter = "aaaa"; 1643my $nuke_counter = "aaaa";
1412 1644
1413sub nuke { 1645sub nuke {
1414 my ($self) = @_; 1646 my ($self) = @_;
1415 1647
1648 delete $cf::MAP{$self->path};
1649
1650 $self->unlink_save;
1651
1652 bless $self, "cf::map";
1653 delete $self->{deny_reset};
1416 $self->{deny_save} = 1; 1654 $self->{deny_save} = 1;
1417 $self->reset_timeout (1); 1655 $self->reset_timeout (1);
1418 $self->rename ("{nuke}/" . ($nuke_counter++)); 1656 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1657
1658 $cf::MAP{$self->path} = $self;
1659
1419 $self->reset; # polite request, might not happen 1660 $self->reset; # polite request, might not happen
1420} 1661}
1421 1662
1422sub customise_for { 1663=item cf::map::unique_maps
1423 my ($map, $ob) = @_;
1424 1664
1425 if ($map->per_player) { 1665Returns an arrayref of paths of all shared maps that have
1426 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path}; 1666instantiated unique items. May block.
1427 }
1428 1667
1429 $map 1668=cut
1430}
1431 1669
1432sub emergency_save { 1670sub unique_maps() {
1433 my $freeze_guard = cf::freeze_mainloop; 1671 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1672 or return;
1434 1673
1435 warn "enter emergency map save\n"; 1674 my @paths;
1436 1675
1437 cf::sync_job { 1676 for (@$files) {
1438 warn "begin emergency map save\n"; 1677 utf8::decode $_;
1439 $_->save for values %cf::MAP; 1678 next if /\.pst$/;
1679 next unless /^$PATH_SEP/o;
1680
1681 push @paths, cf::map::normalise $_;
1440 }; 1682 }
1441 1683
1442 warn "end emergency map save\n"; 1684 \@paths
1443} 1685}
1444 1686
1445package cf; 1687package cf;
1446 1688
1447=back 1689=back
1448 1690
1691=head3 cf::object
1692
1693=cut
1694
1695package cf::object;
1696
1697=over 4
1698
1699=item $ob->inv_recursive
1700
1701Returns the inventory of the object _and_ their inventories, recursively.
1702
1703=cut
1704
1705sub inv_recursive_;
1706sub inv_recursive_ {
1707 map { $_, inv_recursive_ $_->inv } @_
1708}
1709
1710sub inv_recursive {
1711 inv_recursive_ inv $_[0]
1712}
1713
1714package cf;
1715
1716=back
1449 1717
1450=head3 cf::object::player 1718=head3 cf::object::player
1451 1719
1452=over 4 1720=over 4
1453 1721
1493 1761
1494=item $player_object->enter_link 1762=item $player_object->enter_link
1495 1763
1496Freezes the player and moves him/her to a special map (C<{link}>). 1764Freezes the player and moves him/her to a special map (C<{link}>).
1497 1765
1498The player should be reaosnably safe there for short amounts of time. You 1766The player should be reasonably safe there for short amounts of time. You
1499I<MUST> call C<leave_link> as soon as possible, though. 1767I<MUST> call C<leave_link> as soon as possible, though.
1500 1768
1769Will never block.
1770
1501=item $player_object->leave_link ($map, $x, $y) 1771=item $player_object->leave_link ($map, $x, $y)
1502 1772
1503Moves the player out of the specila link map onto the given map. If the 1773Moves 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 1774map. 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, 1775to the location he/she was before the call to C<enter_link>, or, if that
1506to the emergency map position. 1776fails, to the emergency map position.
1507 1777
1508Might block. 1778Might block.
1509 1779
1510=cut 1780=cut
1781
1782sub link_map {
1783 unless ($LINK_MAP) {
1784 $LINK_MAP = cf::map::find "{link}"
1785 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1786 $LINK_MAP->load;
1787 }
1788
1789 $LINK_MAP
1790}
1511 1791
1512sub cf::object::player::enter_link { 1792sub cf::object::player::enter_link {
1513 my ($self) = @_; 1793 my ($self) = @_;
1514 1794
1515 $self->deactivate_recursive; 1795 $self->deactivate_recursive;
1516 1796
1517 return if $self->map == $LINK_MAP; 1797 return if UNIVERSAL::isa $self->map, "ext::map_link";
1518 1798
1519 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1799 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520 if $self->map; 1800 if $self->map;
1521 1801
1522 $self->enter_map ($LINK_MAP, 20, 20); 1802 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1523} 1803}
1524 1804
1525sub cf::object::player::leave_link { 1805sub cf::object::player::leave_link {
1526 my ($self, $map, $x, $y) = @_; 1806 my ($self, $map, $x, $y) = @_;
1527 1807
1545 # use -1 or undef as default coordinates, not 0, 0 1825 # use -1 or undef as default coordinates, not 0, 0
1546 ($x, $y) = ($map->enter_x, $map->enter_y) 1826 ($x, $y) = ($map->enter_x, $map->enter_y)
1547 if $x <=0 && $y <= 0; 1827 if $x <=0 && $y <= 0;
1548 1828
1549 $map->load; 1829 $map->load;
1830 $map->load_diag;
1550 1831
1832 return unless $self->contr->active;
1551 $self->activate_recursive; 1833 $self->activate_recursive;
1834
1835 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552 $self->enter_map ($map, $x, $y); 1836 $self->enter_map ($map, $x, $y);
1553} 1837}
1554 1838
1555cf::player->attach ( 1839cf::player->attach (
1556 on_logout => sub { 1840 on_logout => sub {
1568 1852
1569 # try to abort aborted map switching on player login :) 1853 # try to abort aborted map switching on player login :)
1570 # should happen only on crashes 1854 # should happen only on crashes
1571 if ($pl->ob->{_link_pos}) { 1855 if ($pl->ob->{_link_pos}) {
1572 $pl->ob->enter_link; 1856 $pl->ob->enter_link;
1573 cf::async { 1857 (async {
1858 $pl->ob->reply (undef,
1859 "There was an internal problem at your last logout, "
1860 . "the server will try to bring you to your intended destination in a second.",
1861 cf::NDI_RED);
1574 # we need this sleep as the login has a concurrent enter_exit running 1862 # 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 1863 # and this sleep increases chances of the player not ending up in scorn
1576 Coro::Timer::sleep 1; 1864 Coro::Timer::sleep 1;
1577 $pl->ob->leave_link; 1865 $pl->ob->leave_link;
1578 }; 1866 })->prio (2);
1579 } 1867 }
1580 }, 1868 },
1581); 1869);
1582 1870
1583=item $player_object->goto_map ($path, $x, $y) 1871=item $player_object->goto ($path, $x, $y)
1584 1872
1585=cut 1873=cut
1586 1874
1587sub cf::object::player::goto_map { 1875sub cf::object::player::goto {
1588 my ($self, $path, $x, $y) = @_; 1876 my ($self, $path, $x, $y) = @_;
1589 1877
1590 $self->enter_link; 1878 $self->enter_link;
1591 1879
1592 (cf::async { 1880 (async {
1593 $path = new cf::path $path; 1881 my $map = eval {
1594
1595 my $map = cf::map::find $path->as_string; 1882 my $map = cf::map::find $path;
1596 $map = $map->customise_for ($self) if $map; 1883 $map = $map->customise_for ($self) if $map;
1597 1884 $map
1598# warn "entering ", $map->path, " at ($x, $y)\n" 1885 } or
1599# if $map;
1600
1601 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1886 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1602 1887
1603 $self->leave_link ($map, $x, $y); 1888 $self->leave_link ($map, $x, $y);
1604 })->prio (1); 1889 })->prio (1);
1605} 1890}
1606 1891
1610 1895
1611sub parse_random_map_params { 1896sub parse_random_map_params {
1612 my ($spec) = @_; 1897 my ($spec) = @_;
1613 1898
1614 my $rmp = { # defaults 1899 my $rmp = { # defaults
1615 xsize => 10, 1900 xsize => (cf::rndm 15, 40),
1616 ysize => 10, 1901 ysize => (cf::rndm 15, 40),
1902 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1903 #layout => string,
1617 }; 1904 };
1618 1905
1619 for (split /\n/, $spec) { 1906 for (split /\n/, $spec) {
1620 my ($k, $v) = split /\s+/, $_, 2; 1907 my ($k, $v) = split /\s+/, $_, 2;
1621 1908
1625 $rmp 1912 $rmp
1626} 1913}
1627 1914
1628sub prepare_random_map { 1915sub prepare_random_map {
1629 my ($exit) = @_; 1916 my ($exit) = @_;
1917
1918 my $guard = cf::lock_acquire "exit_prepare:$exit";
1630 1919
1631 # all this does is basically replace the /! path by 1920 # all this does is basically replace the /! path by
1632 # a new random map path (?random/...) with a seed 1921 # a new random map path (?random/...) with a seed
1633 # that depends on the exit object 1922 # that depends on the exit object
1634 1923
1635 my $rmp = parse_random_map_params $exit->msg; 1924 my $rmp = parse_random_map_params $exit->msg;
1636 1925
1637 if ($exit->map) { 1926 if ($exit->map) {
1638 $rmp->{region} = $exit->map->region_name; 1927 $rmp->{region} = $exit->region->name;
1639 $rmp->{origin_map} = $exit->map->path; 1928 $rmp->{origin_map} = $exit->map->path;
1640 $rmp->{origin_x} = $exit->x; 1929 $rmp->{origin_x} = $exit->x;
1641 $rmp->{origin_y} = $exit->y; 1930 $rmp->{origin_y} = $exit->y;
1642 } 1931 }
1643 1932
1644 $rmp->{random_seed} ||= $exit->random_seed; 1933 $rmp->{random_seed} ||= $exit->random_seed;
1645 1934
1646 my $data = cf::to_json $rmp; 1935 my $data = cf::to_json $rmp;
1647 my $md5 = Digest::MD5::md5_hex $data; 1936 my $md5 = Digest::MD5::md5_hex $data;
1937 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1648 1938
1649 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1939 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650 aio_write $fh, 0, (length $data), $data, 0; 1940 aio_write $fh, 0, (length $data), $data, 0;
1941 undef $fh;
1942 aio_rename "$meta~", $meta;
1651 1943
1652 $exit->slaying ("?random/$md5"); 1944 $exit->slaying ("?random/$md5");
1653 $exit->msg (undef); 1945 $exit->msg (undef);
1654 } 1946 }
1655} 1947}
1657sub cf::object::player::enter_exit { 1949sub cf::object::player::enter_exit {
1658 my ($self, $exit) = @_; 1950 my ($self, $exit) = @_;
1659 1951
1660 return unless $self->type == cf::PLAYER; 1952 return unless $self->type == cf::PLAYER;
1661 1953
1954 if ($exit->slaying eq "/!") {
1955 #TODO: this should de-fi-ni-te-ly not be a sync-job
1956 cf::sync_job { prepare_random_map $exit };
1957 }
1958
1959 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960 my $hp = $exit->stats->hp;
1961 my $sp = $exit->stats->sp;
1962
1662 $self->enter_link; 1963 $self->enter_link;
1663 1964
1664 (cf::async { 1965 (async {
1665 $self->deactivate_recursive; # just to be sure 1966 $self->deactivate_recursive; # just to be sure
1666 unless (eval { 1967 unless (eval {
1667 prepare_random_map $exit 1968 $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 1969
1673 1; 1970 1;
1674 }) { 1971 }) {
1675 $self->message ("Something went wrong deep within the crossfire server. " 1972 $self->message ("Something went wrong deep within the crossfire server. "
1676 . "I'll try to bring you back to the map you were before. " 1973 . "I'll try to bring you back to the map you were before. "
1677 . "Please report this to the dungeon master", 1974 . "Please report this to the dungeon master!",
1678 cf::NDI_UNIQUE | cf::NDI_RED); 1975 cf::NDI_UNIQUE | cf::NDI_RED);
1679 1976
1680 warn "ERROR in enter_exit: $@"; 1977 warn "ERROR in enter_exit: $@";
1681 $self->leave_link; 1978 $self->leave_link;
1682 } 1979 }
1737 # get handled first 2034 # get handled first
1738 my $queue = delete $ns->{query_queue} 2035 my $queue = delete $ns->{query_queue}
1739 or return; # be conservative, not sure how that can happen, but we saw a crash here 2036 or return; # be conservative, not sure how that can happen, but we saw a crash here
1740 2037
1741 (shift @$queue)->[1]->($msg); 2038 (shift @$queue)->[1]->($msg);
2039 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742 2040
1743 push @{ $ns->{query_queue} }, @$queue; 2041 push @{ $ns->{query_queue} }, @$queue;
1744 2042
1745 if (@{ $ns->{query_queue} } == @$queue) { 2043 if (@{ $ns->{query_queue} } == @$queue) {
1746 if (@$queue) { 2044 if (@$queue) {
1750 } 2048 }
1751 } 2049 }
1752 }, 2050 },
1753); 2051);
1754 2052
1755=item $client->coro (\&cb) 2053=item $client->async (\&cb)
1756 2054
1757Create a new coroutine, running the specified callback. The coroutine will 2055Create a new coroutine, running the specified callback. The coroutine will
1758be automatically cancelled when the client gets destroyed (e.g. on logout, 2056be automatically cancelled when the client gets destroyed (e.g. on logout,
1759or loss of connection). 2057or loss of connection).
1760 2058
1761=cut 2059=cut
1762 2060
1763sub cf::client::coro { 2061sub cf::client::async {
1764 my ($self, $cb) = @_; 2062 my ($self, $cb) = @_;
1765 2063
1766 my $coro = &cf::async ($cb); 2064 my $coro = &Coro::async ($cb);
1767 2065
1768 $coro->on_destroy (sub { 2066 $coro->on_destroy (sub {
1769 delete $self->{_coro}{$coro+0}; 2067 delete $self->{_coro}{$coro+0};
1770 }); 2068 });
1771 2069
1907The parameter C<$family> should best start with the name of the extension 2205The parameter C<$family> should best start with the name of the extension
1908using it, it should be unique. 2206using it, it should be unique.
1909 2207
1910=over 4 2208=over 4
1911 2209
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 2210=item $value = cf::db_get $family => $key
1919 2211
1920Returns a single value from the database 2212Returns 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 2213
1927=item cf::db_put $family => $key => $value 2214=item cf::db_put $family => $key => $value
1928 2215
1929Stores the given C<$value> in the family hash. Updates are delayed, if you 2216Stores 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 2217
1940=cut 2218=cut
1941 2219
1942our $DB; 2220our $DB;
1943 2221
1944{ 2222sub db_init {
2223 unless ($DB) {
2224 $DB = BDB::db_create $DB_ENV;
2225
2226 cf::sync_job {
2227 eval {
2228 $DB->set_flags (BDB::CHKSUM);
2229
2230 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232 cf::cleanup "db_open(db): $!" if $!;
2233 };
2234 cf::cleanup "db_open(db): $@" if $@;
2235 };
2236
1945 my $path = cf::localdir . "/database.pst"; 2237 my $path = cf::localdir . "/database.pst";
2238 if (stat $path) {
2239 cf::sync_job {
2240 my $pst = Storable::retrieve $path;
1946 2241
1947 sub db_load() { 2242 cf::db_put (board => data => $pst->{board});
1948 $DB = stat $path ? Storable::retrieve $path : { }; 2243 cf::db_put (guildrules => data => $pst->{guildrules});
1949 } 2244 cf::db_put (rent => balance => $pst->{rent}{balance});
2245 BDB::db_env_txn_checkpoint $DB_ENV;
1950 2246
1951 my $pid; 2247 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 } 2248 };
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 }, 2249 }
1999 ); 2250 }
2251}
2252
2253sub db_get($$) {
2254 my $key = "$_[0]/$_[1]";
2255
2256 cf::sync_job {
2257 BDB::db_get $DB, undef, $key, my $data;
2258
2259 $! ? ()
2260 : Compress::LZF::sthaw $data
2261 }
2262}
2263
2264sub db_put($$$) {
2265 BDB::dbreq_pri 4;
2266 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2000} 2267}
2001 2268
2002############################################################################# 2269#############################################################################
2003# the server's main() 2270# the server's init and main functions
2271
2272sub load_faces {
2273 my $path = sprintf "%s/faces", cf::datadir;
2274
2275 warn "loading faces from $path\n";
2276
2277 my $faces;
2278 0 < aio_load $path, $faces
2279 or die "$path: $!";
2280
2281 Coro::cede;
2282 $faces = Storable::thaw $faces;
2283 Coro::cede;
2284
2285 while (my ($face, $info) = each %$faces) {
2286 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2289 Coro::cede;
2290 }
2291
2292 1
2293}
2294
2295sub reload_resources {
2296 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2297 or die "unable to load regions file\n";#d#
2298 load_faces
2299 or die "unable to load faces\n";#d#
2300}
2301
2302sub init {
2303 reload_resources;
2304}
2004 2305
2005sub cfg_load { 2306sub cfg_load {
2006 open my $fh, "<:utf8", cf::confdir . "/config" 2307 open my $fh, "<:utf8", cf::confdir . "/config"
2007 or return; 2308 or return;
2008 2309
2009 local $/; 2310 local $/;
2010 *CFG = YAML::Syck::Load <$fh>; 2311 *CFG = YAML::Syck::Load <$fh>;
2011 2312
2012 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 2313 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013 2314
2315 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2316 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2317
2014 if (exists $CFG{mlockall}) { 2318 if (exists $CFG{mlockall}) {
2015 eval { 2319 eval {
2016 $CFG{mlockall} ? &mlockall : &munlockall 2320 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017 and die "WARNING: m(un)lockall failed: $!\n"; 2321 and die "WARNING: m(un)lockall failed: $!\n";
2018 }; 2322 };
2019 warn $@ if $@; 2323 warn $@ if $@;
2020 } 2324 }
2021} 2325}
2022 2326
2023sub main { 2327sub main {
2024 # we must not ever block the main coroutine 2328 # we must not ever block the main coroutine
2025 local $Coro::idle = sub { 2329 local $Coro::idle = sub {
2026 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2330 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027 (Coro::unblock_sub { 2331 (async {
2028 Event::one_event; 2332 Event::one_event;
2029 })->(); 2333 })->prio (Coro::PRIO_MAX);
2030 }; 2334 };
2031 2335
2032 cfg_load; 2336 cfg_load;
2033 db_load; 2337 db_init;
2034 load_extensions; 2338 load_extensions;
2339
2340 $TICK_WATCHER->start;
2035 Event::loop; 2341 Event::loop;
2036} 2342}
2037 2343
2038############################################################################# 2344#############################################################################
2039# initialisation 2345# initialisation and cleanup
2346
2347# install some emergency cleanup handlers
2348BEGIN {
2349 for my $signal (qw(INT HUP TERM)) {
2350 Event->signal (
2351 reentrant => 0,
2352 data => WF_AUTOCANCEL,
2353 signal => $signal,
2354 prio => 0,
2355 cb => sub {
2356 cf::cleanup "SIG$signal";
2357 },
2358 );
2359 }
2360}
2361
2362sub emergency_save() {
2363 my $freeze_guard = cf::freeze_mainloop;
2364
2365 warn "enter emergency perl save\n";
2366
2367 cf::sync_job {
2368 # use a peculiar iteration method to avoid tripping on perl
2369 # refcount bugs in for. also avoids problems with players
2370 # and maps saved/destroyed asynchronously.
2371 warn "begin emergency player save\n";
2372 for my $login (keys %cf::PLAYER) {
2373 my $pl = $cf::PLAYER{$login} or next;
2374 $pl->valid or next;
2375 $pl->save;
2376 }
2377 warn "end emergency player save\n";
2378
2379 warn "begin emergency map save\n";
2380 for my $path (keys %cf::MAP) {
2381 my $map = $cf::MAP{$path} or next;
2382 $map->valid or next;
2383 $map->save;
2384 }
2385 warn "end emergency map save\n";
2386
2387 warn "begin emergency database checkpoint\n";
2388 BDB::db_env_txn_checkpoint $DB_ENV;
2389 warn "end emergency database checkpoint\n";
2390 };
2391
2392 warn "leave emergency perl save\n";
2393}
2394
2395sub post_cleanup {
2396 my ($make_core) = @_;
2397
2398 warn Carp::longmess "post_cleanup backtrace"
2399 if $make_core;
2400}
2040 2401
2041sub reload() { 2402sub reload() {
2042 # can/must only be called in main 2403 # can/must only be called in main
2043 if ($Coro::current != $Coro::main) { 2404 if ($Coro::current != $Coro::main) {
2044 warn "can only reload from main coroutine\n"; 2405 warn "can only reload from main coroutine";
2045 return; 2406 return;
2046 } 2407 }
2047 2408
2048 warn "reloading..."; 2409 warn "reloading...";
2049 2410
2050 my $guard = freeze_mainloop; 2411 warn "entering sync_job";
2412
2413 cf::sync_job {
2414 cf::write_runtime; # external watchdog should not bark
2051 cf::emergency_save; 2415 cf::emergency_save;
2416 cf::write_runtime; # external watchdog should not bark
2052 2417
2053 eval { 2418 warn "syncing database to disk";
2419 BDB::db_env_txn_checkpoint $DB_ENV;
2420
2054 # if anything goes wrong in here, we should simply crash as we already saved 2421 # if anything goes wrong in here, we should simply crash as we already saved
2055 2422
2056 # cancel all watchers 2423 warn "cancelling all WF_AUTOCANCEL watchers";
2057 for (Event::all_watchers) { 2424 for (Event::all_watchers) {
2058 $_->cancel if $_->data & WF_AUTOCANCEL; 2425 $_->cancel if $_->data & WF_AUTOCANCEL;
2059 } 2426 }
2060 2427
2428 warn "flushing outstanding aio requests";
2429 for (;;) {
2430 BDB::flush;
2431 IO::AIO::flush;
2432 Coro::cede;
2433 last unless IO::AIO::nreqs || BDB::nreqs;
2434 warn "iterate...";
2435 }
2436
2437 ++$RELOAD;
2438
2061 # cancel all extension coros 2439 warn "cancelling all extension coros";
2062 $_->cancel for values %EXT_CORO; 2440 $_->cancel for values %EXT_CORO;
2063 %EXT_CORO = (); 2441 %EXT_CORO = ();
2064 2442
2065 # unload all extensions 2443 warn "removing commands";
2066 for (@exts) { 2444 %COMMAND = ();
2445
2446 warn "removing ext commands";
2447 %EXTCMD = ();
2448
2449 warn "unloading/nuking all extensions";
2450 for my $pkg (@EXTS) {
2067 warn "unloading <$_>"; 2451 warn "... unloading $pkg";
2068 unload_extension $_; 2452
2453 if (my $cb = $pkg->can ("unload")) {
2454 eval {
2455 $cb->($pkg);
2456 1
2457 } or warn "$pkg unloaded, but with errors: $@";
2069 } 2458 }
2070 2459
2460 warn "... nuking $pkg";
2461 Symbol::delete_package $pkg;
2462 }
2463
2071 # unload all modules loaded from $LIBDIR 2464 warn "unloading all perl modules loaded from $LIBDIR";
2072 while (my ($k, $v) = each %INC) { 2465 while (my ($k, $v) = each %INC) {
2073 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2466 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074 2467
2075 warn "removing <$k>"; 2468 warn "... unloading $k";
2076 delete $INC{$k}; 2469 delete $INC{$k};
2077 2470
2078 $k =~ s/\.pm$//; 2471 $k =~ s/\.pm$//;
2079 $k =~ s/\//::/g; 2472 $k =~ s/\//::/g;
2080 2473
2083 } 2476 }
2084 2477
2085 Symbol::delete_package $k; 2478 Symbol::delete_package $k;
2086 } 2479 }
2087 2480
2088 # sync database to disk
2089 cf::db_sync;
2090 IO::AIO::flush;
2091
2092 # get rid of safe::, as good as possible 2481 warn "getting rid of safe::, as good as possible";
2093 Symbol::delete_package "safe::$_" 2482 Symbol::delete_package "safe::$_"
2094 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2483 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095 2484
2096 # remove register_script_function callbacks
2097 # TODO
2098
2099 # unload cf.pm "a bit" 2485 warn "unloading cf.pm \"a bit\"";
2100 delete $INC{"cf.pm"}; 2486 delete $INC{"cf.pm"};
2101 2487
2102 # don't, removes xs symbols, too, 2488 # don't, removes xs symbols, too,
2103 # and global variables created in xs 2489 # and global variables created in xs
2104 #Symbol::delete_package __PACKAGE__; 2490 #Symbol::delete_package __PACKAGE__;
2105 2491
2106 # reload cf.pm 2492 warn "unload completed, starting to reload now";
2493
2107 warn "reloading cf.pm"; 2494 warn "reloading cf.pm";
2108 require cf; 2495 require cf;
2109 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2496 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110 2497
2111 # load config and database again 2498 warn "loading config and database again";
2112 cf::cfg_load; 2499 cf::cfg_load;
2113 cf::db_load;
2114 2500
2115 # load extensions
2116 warn "load extensions"; 2501 warn "loading extensions";
2117 cf::load_extensions; 2502 cf::load_extensions;
2118 2503
2119 # reattach attachments to objects 2504 warn "reattaching attachments to objects/players";
2120 warn "reattach"; 2505 _global_reattach; # objects, sockets
2121 _global_reattach; 2506 warn "reattaching attachments to maps";
2122 }; 2507 reattach $_ for values %MAP;
2508 warn "reattaching attachments to players";
2509 reattach $_ for values %PLAYER;
2123 2510
2124 if ($@) { 2511 warn "loading reloadable resources";
2512 reload_resources;
2513
2514 warn "leaving sync_job";
2515
2516 1
2517 } or do {
2125 warn $@; 2518 warn $@;
2126 warn "error while reloading, exiting."; 2519 warn "error while reloading, exiting.";
2127 exit 1; 2520 exit 1;
2128 } 2521 };
2129 2522
2130 warn "reloaded successfully"; 2523 warn "reloaded";
2131}; 2524};
2132 2525
2133############################################################################# 2526our $RELOAD_WATCHER; # used only during reload
2134
2135unless ($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} = $LINK_MAP;
2174}
2175
2176register "<global>", __PACKAGE__;
2177 2527
2178register_command "reload" => sub { 2528register_command "reload" => sub {
2179 my ($who, $arg) = @_; 2529 my ($who, $arg) = @_;
2180 2530
2181 if ($who->flag (FLAG_WIZ)) { 2531 if ($who->flag (FLAG_WIZ)) {
2182 $who->message ("start of reload."); 2532 $who->message ("reloading server.");
2533
2534 # doing reload synchronously and two reloads happen back-to-back,
2535 # coro crashes during coro_state_free->destroy here.
2536
2537 $RELOAD_WATCHER ||= Event->timer (
2538 reentrant => 0,
2539 after => 0,
2540 data => WF_AUTOCANCEL,
2541 cb => sub {
2183 reload; 2542 reload;
2184 $who->message ("end of reload."); 2543 undef $RELOAD_WATCHER;
2544 },
2545 );
2185 } 2546 }
2186}; 2547};
2187 2548
2188unshift @INC, $LIBDIR; 2549unshift @INC, $LIBDIR;
2550
2551my $bug_warning = 0;
2189 2552
2190$TICK_WATCHER = Event->timer ( 2553$TICK_WATCHER = Event->timer (
2191 reentrant => 0, 2554 reentrant => 0,
2555 parked => 1,
2192 prio => 0, 2556 prio => 0,
2193 at => $NEXT_TICK || $TICK, 2557 at => $NEXT_TICK || $TICK,
2194 data => WF_AUTOCANCEL, 2558 data => WF_AUTOCANCEL,
2195 cb => sub { 2559 cb => sub {
2560 if ($Coro::current != $Coro::main) {
2561 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562 unless ++$bug_warning > 10;
2563 return;
2564 }
2565
2566 $NOW = Event::time;
2567
2196 cf::server_tick; # one server iteration 2568 cf::server_tick; # one server iteration
2197 $RUNTIME += $TICK; 2569 $RUNTIME += $TICK;
2198 $NEXT_TICK += $TICK; 2570 $NEXT_TICK += $TICK;
2571
2572 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573 $NEXT_RUNTIME_WRITE = $NOW + 10;
2574 Coro::async_pool {
2575 write_runtime
2576 or warn "ERROR: unable to write runtime file: $!";
2577 };
2578 }
2579
2580 $WAIT_FOR_TICK->broadcast;
2581 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583# my $AFTER = Event::time;
2584# warn $AFTER - $NOW;#d#
2199 2585
2200 # if we are delayed by four ticks or more, skip them all 2586 # if we are delayed by four ticks or more, skip them all
2201 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2587 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202 2588
2203 $TICK_WATCHER->at ($NEXT_TICK); 2589 $TICK_WATCHER->at ($NEXT_TICK);
2204 $TICK_WATCHER->start; 2590 $TICK_WATCHER->start;
2205 }, 2591 },
2206); 2592);
2207 2593
2594{
2208IO::AIO::max_poll_time $TICK * 0.2; 2595 BDB::max_poll_time $TICK * 0.1;
2209 2596 $BDB_POLL_WATCHER = Event->io (
2210Event->io ( 2597 reentrant => 0,
2211 fd => IO::AIO::poll_fileno, 2598 fd => BDB::poll_fileno,
2212 poll => 'r', 2599 poll => 'r',
2213 prio => 5, 2600 prio => 0,
2214 data => WF_AUTOCANCEL,
2215 cb => \&IO::AIO::poll_cb,
2216);
2217
2218Event->timer (
2219 data => WF_AUTOCANCEL, 2601 data => WF_AUTOCANCEL,
2220 after => 0, 2602 cb => \&BDB::poll_cb,
2221 interval => 10, 2603 );
2222 cb => sub { 2604 BDB::min_parallel 8;
2223 (Coro::unblock_sub { 2605
2224 write_runtime 2606 BDB::set_sync_prepare {
2225 or warn "ERROR: unable to write runtime file: $!"; 2607 my $status;
2608 my $current = $Coro::current;
2609 (
2610 sub {
2611 $status = $!;
2612 $current->ready; undef $current;
2613 },
2614 sub {
2615 Coro::schedule while defined $current;
2616 $! = $status;
2617 },
2618 )
2619 };
2620
2621 unless ($DB_ENV) {
2622 $DB_ENV = BDB::db_env_create;
2623
2624 cf::sync_job {
2625 eval {
2626 BDB::db_env_open
2627 $DB_ENV,
2628 $BDB_ENV_DIR,
2629 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631 0666;
2632
2633 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2634
2635 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636 $DB_ENV->set_lk_detect;
2637 };
2638
2639 cf::cleanup "db_env_open(db): $@" if $@;
2226 })->(); 2640 };
2227 }, 2641 }
2228); 2642}
2643
2644{
2645 IO::AIO::min_parallel 8;
2646
2647 undef $Coro::AIO::WATCHER;
2648 IO::AIO::max_poll_time $TICK * 0.1;
2649 $AIO_POLL_WATCHER = Event->io (
2650 reentrant => 0,
2651 data => WF_AUTOCANCEL,
2652 fd => IO::AIO::poll_fileno,
2653 poll => 'r',
2654 prio => 6,
2655 cb => \&IO::AIO::poll_cb,
2656 );
2657}
2229 2658
2230END { cf::emergency_save } 2659END { cf::emergency_save }
2231 2660
22321 26611
2233 2662

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