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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.3 by root, Sat Feb 4 20:38:29 2006 UTC vs.
Revision 1.469 by root, Mon Mar 2 22:25:19 2009 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program. If not, see <http://www.gnu.org/licenses/>.
18#
19# The authors can be reached via e-mail to <support@deliantra.net>
20#
21
1package cf; 22package cf;
23
24use 5.10.0;
25use utf8;
26use strict qw(vars subs);
2 27
3use Symbol; 28use Symbol;
4use List::Util; 29use List::Util;
30use Socket;
31use EV;
32use Opcode;
33use Safe;
34use Safe::Hole;
35use Storable ();
5 36
6use strict; 37use Guard ();
38use Coro ();
39use Coro::State;
40use Coro::Handle;
41use Coro::EV;
42use Coro::AnyEvent;
43use Coro::Timer;
44use Coro::Signal;
45use Coro::Semaphore;
46use Coro::SemaphoreSet;
47use Coro::AnyEvent;
48use Coro::AIO;
49use Coro::BDB 1.6;
50use Coro::Storable;
51use Coro::Util ();
7 52
8our %COMMAND; 53use JSON::XS 2.01 ();
54use BDB ();
55use Data::Dumper;
56use Digest::MD5;
57use Fcntl;
58use YAML ();
59use IO::AIO ();
60use Time::HiRes;
61use Compress::LZF;
62use Digest::MD5 ();
63
64AnyEvent::detect;
65
66# configure various modules to our taste
67#
68$Storable::canonical = 1; # reduce rsync transfers
69Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
70
71$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
72
73# make sure c-lzf reinitialises itself
74Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
75Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
76
77sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
78
79our %COMMAND = ();
80our %COMMAND_TIME = ();
81
82our @EXTS = (); # list of extension package names
83our %EXTCMD = ();
84our %EXTICMD = ();
85our %EXT_CORO = (); # coroutines bound to extensions
86our %EXT_MAP = (); # pluggable maps
87
88our $RELOAD; # number of reloads so far, non-zero while in reload
9our @EVENT; 89our @EVENT;
10our %PROP_TYPE; 90
11our %PROP_IDX; 91our $CONFDIR = confdir;
92our $DATADIR = datadir;
93our $LIBDIR = "$DATADIR/ext";
94our $PODDIR = "$DATADIR/pod";
95our $MAPDIR = "$DATADIR/" . mapdir;
96our $LOCALDIR = localdir;
97our $TMPDIR = "$LOCALDIR/" . tmpdir;
98our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
99our $PLAYERDIR = "$LOCALDIR/" . playerdir;
100our $RANDOMDIR = "$LOCALDIR/random";
101our $BDBDIR = "$LOCALDIR/db";
102our $PIDFILE = "$LOCALDIR/pid";
103our $RUNTIMEFILE = "$LOCALDIR/runtime";
104
105our %RESOURCE;
106
107our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
108our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
109our $NEXT_TICK;
110our $USE_FSYNC = 1; # use fsync to write maps - default on
111
112our $BDB_DEADLOCK_WATCHER;
113our $BDB_CHECKPOINT_WATCHER;
114our $BDB_TRICKLE_WATCHER;
115our $DB_ENV;
116
117our @EXTRA_MODULES = qw(pod mapscript);
118
119our %CFG;
120
121our $UPTIME; $UPTIME ||= time;
122our $RUNTIME;
123our $NOW;
124
125our (%PLAYER, %PLAYER_LOADING); # all users
126our (%MAP, %MAP_LOADING ); # all maps
127our $LINK_MAP; # the special {link} map, which is always available
128
129# used to convert map paths into valid unix filenames by replacing / by ∕
130our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
131
132our $LOAD; # a number between 0 (idle) and 1 (too many objects)
133our $LOADAVG; # same thing, but with alpha-smoothing
134our $JITTER; # average jitter
135our $TICK_START; # for load detecting purposes
136
137our @POST_INIT;
138
139our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
140
141binmode STDOUT;
142binmode STDERR;
143
144# read virtual server time, if available
145unless ($RUNTIME || !-e $RUNTIMEFILE) {
146 open my $fh, "<", $RUNTIMEFILE
147 or die "unable to read $RUNTIMEFILE file: $!";
148 $RUNTIME = <$fh> + 0.;
149}
150
151eval "sub TICK() { $TICK } 1" or die;
152
153mkdir $_
154 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
155
156our $EMERGENCY_POSITION;
157
158sub cf::map::normalise;
159
160#############################################################################
161
162=head2 GLOBAL VARIABLES
163
164=over 4
165
166=item $cf::UPTIME
167
168The timestamp of the server start (so not actually an uptime).
169
170=item $cf::RUNTIME
171
172The time this server has run, starts at 0 and is increased by $cf::TICK on
173every server tick.
174
175=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
176$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
177$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
178
179Various directories - "/etc", read-only install directory, perl-library
180directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
181unique-items directory, player file directory, random maps directory and
182database environment.
183
184=item $cf::NOW
185
186The time of the last (current) server tick.
187
188=item $cf::TICK
189
190The interval between server ticks, in seconds.
191
192=item $cf::LOADAVG
193
194The current CPU load on the server (alpha-smoothed), as a value between 0
195(none) and 1 (overloaded), indicating how much time is spent on processing
196objects per tick. Healthy values are < 0.5.
197
198=item $cf::LOAD
199
200The raw value load value from the last tick.
201
202=item %cf::CFG
203
204Configuration for the server, loaded from C</etc/deliantra-server/config>, or
205from wherever your confdir points to.
206
207=item cf::wait_for_tick, cf::wait_for_tick_begin
208
209These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
210returns directly I<after> the tick processing (and consequently, can only wake one process
211per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
212
213=item @cf::INVOKE_RESULTS
214
215This array contains the results of the last C<invoke ()> call. When
216C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
217that call.
218
219=back
220
221=cut
12 222
13BEGIN { 223BEGIN {
14 @EVENT = map lc, @EVENT;
15
16 *CORE::GLOBAL::warn = sub { 224 *CORE::GLOBAL::warn = sub {
17 my $msg = join "", @_; 225 my $msg = join "", @_;
226
18 $msg .= "\n" 227 $msg .= "\n"
19 unless $msg =~ /\n$/; 228 unless $msg =~ /\n$/;
20 229
21 print STDERR "cfperl: $msg"; 230 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
231
22 LOG llevError, "cfperl: $msg"; 232 LOG llevError, $msg;
23 }; 233 };
24} 234}
25 235
26# generate property mutators 236$Coro::State::DIEHOOK = sub {
27sub prop_gen { 237 return unless $^S eq 0; # "eq", not "=="
238
239 if ($Coro::current == $Coro::main) {#d#
240 warn "DIEHOOK called in main context, Coro bug?\n";#d#
241 return;#d#
242 }#d#
243
244 # kill coroutine otherwise
245 warn Carp::longmess $_[0];
246 Coro::terminate
247};
248
249$SIG{__DIE__} = sub { }; #d#?
250
251@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
252@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
253@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
254@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
255@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
256@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
257@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
258
259# we bless all objects into (empty) derived classes to force a method lookup
260# within the Safe compartment.
261for my $pkg (qw(
262 cf::global cf::attachable
263 cf::object cf::object::player
264 cf::client cf::player
265 cf::arch cf::living
266 cf::map cf::mapspace
267 cf::party cf::region
268)) {
269 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
270}
271
272$EV::DIED = sub {
273 warn "error in event callback: @_";
274};
275
276#############################################################################
277
278=head2 UTILITY FUNCTIONS
279
280=over 4
281
282=item dumpval $ref
283
284=cut
285
286sub dumpval {
287 eval {
288 local $SIG{__DIE__};
289 my $d;
290 if (1) {
291 $d = new Data::Dumper([$_[0]], ["*var"]);
292 $d->Terse(1);
293 $d->Indent(2);
294 $d->Quotekeys(0);
295 $d->Useqq(1);
296 #$d->Bless(...);
297 $d->Seen($_[1]) if @_ > 1;
298 $d = $d->Dump();
299 }
300 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
301 $d
302 } || "[unable to dump $_[0]: '$@']";
303}
304
305=item $ref = cf::decode_json $json
306
307Converts a JSON string into the corresponding perl data structure.
308
309=item $json = cf::encode_json $ref
310
311Converts a perl data structure into its JSON representation.
312
313=cut
314
315our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
316
317sub encode_json($) { $json_coder->encode ($_[0]) }
318sub decode_json($) { $json_coder->decode ($_[0]) }
319
320=item cf::post_init { BLOCK }
321
322Execute the given codeblock, I<after> all extensions have been (re-)loaded,
323but I<before> the server starts ticking again.
324
325The cdoeblock will have a single boolean argument to indicate whether this
326is a reload or not.
327
328=cut
329
330sub post_init(&) {
331 push @POST_INIT, shift;
332}
333
334=item cf::lock_wait $string
335
336Wait until the given lock is available. See cf::lock_acquire.
337
338=item my $lock = cf::lock_acquire $string
339
340Wait until the given lock is available and then acquires it and returns
341a L<Guard> object. If the guard object gets destroyed (goes out of scope,
342for example when the coroutine gets canceled), the lock is automatically
343returned.
344
345Locks are *not* recursive, locking from the same coro twice results in a
346deadlocked coro.
347
348Lock names should begin with a unique identifier (for example, cf::map::find
349uses map_find and cf::map::load uses map_load).
350
351=item $locked = cf::lock_active $string
352
353Return true if the lock is currently active, i.e. somebody has locked it.
354
355=cut
356
357our $LOCKS = new Coro::SemaphoreSet;
358
359sub lock_wait($) {
360 $LOCKS->wait ($_[0]);
361}
362
363sub lock_acquire($) {
364 $LOCKS->guard ($_[0])
365}
366
367sub lock_active($) {
368 $LOCKS->count ($_[0]) < 1
369}
370
371sub freeze_mainloop {
372 tick_inhibit_inc;
373
374 &Guard::guard (\&tick_inhibit_dec);
375}
376
377=item cf::periodic $interval, $cb
378
379Like EV::periodic, but randomly selects a starting point so that the actions
380get spread over timer.
381
382=cut
383
384sub periodic($$) {
385 my ($interval, $cb) = @_;
386
387 my $start = rand List::Util::min 180, $interval;
388
389 EV::periodic $start, $interval, 0, $cb
390}
391
392=item cf::get_slot $time[, $priority[, $name]]
393
394Allocate $time seconds of blocking CPU time at priority C<$priority>:
395This call blocks and returns only when you have at least C<$time> seconds
396of cpu time till the next tick. The slot is only valid till the next cede.
397
398The optional C<$name> can be used to identify the job to run. It might be
399used for statistical purposes and should identify the same time-class.
400
401Useful for short background jobs.
402
403=cut
404
405our @SLOT_QUEUE;
406our $SLOT_QUEUE;
407
408$SLOT_QUEUE->cancel if $SLOT_QUEUE;
409$SLOT_QUEUE = Coro::async {
410 $Coro::current->desc ("timeslot manager");
411
412 my $signal = new Coro::Signal;
413
414 while () {
415 next_job:
416 my $avail = cf::till_tick;
417 if ($avail > 0.01) {
418 for (0 .. $#SLOT_QUEUE) {
419 if ($SLOT_QUEUE[$_][0] < $avail) {
420 my $job = splice @SLOT_QUEUE, $_, 1, ();
421 $job->[2]->send;
422 Coro::cede;
423 goto next_job;
424 }
425 }
426 }
427
428 if (@SLOT_QUEUE) {
429 # we do not use wait_for_tick() as it returns immediately when tick is inactive
430 push @cf::WAIT_FOR_TICK, $signal;
431 $signal->wait;
432 } else {
433 Coro::schedule;
434 }
435 }
436};
437
438sub get_slot($;$$) {
439 return if tick_inhibit || $Coro::current == $Coro::main;
440
441 my ($time, $pri, $name) = @_;
442
443 $time = $TICK * .6 if $time > $TICK * .6;
444 my $sig = new Coro::Signal;
445
446 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
447 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
448 $SLOT_QUEUE->ready;
449 $sig->wait;
450}
451
452=item cf::async { BLOCK }
453
454Currently the same as Coro::async_pool, meaning you cannot use
455C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
456thing you are allowed to do is call C<prio> on it.
457
458=cut
459
460BEGIN { *async = \&Coro::async_pool }
461
462=item cf::sync_job { BLOCK }
463
464The design of Deliantra requires that the main coroutine ($Coro::main)
465is always able to handle events or runnable, as Deliantra is only
466partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
467acceptable.
468
469If it must be done, put the blocking parts into C<sync_job>. This will run
470the given BLOCK in another coroutine while waiting for the result. The
471server will be frozen during this time, so the block should either finish
472fast or be very important.
473
474=cut
475
476sub sync_job(&) {
477 my ($job) = @_;
478
479 if ($Coro::current == $Coro::main) {
480 my $time = EV::time;
481
482 # this is the main coro, too bad, we have to block
483 # till the operation succeeds, freezing the server :/
484
485 LOG llevError, Carp::longmess "sync job";#d#
486
487 my $freeze_guard = freeze_mainloop;
488
489 my $busy = 1;
490 my @res;
491
492 (async {
493 $Coro::current->desc ("sync job coro");
494 @res = eval { $job->() };
495 warn $@ if $@;
496 undef $busy;
497 })->prio (Coro::PRIO_MAX);
498
499 while ($busy) {
500 if (Coro::nready) {
501 Coro::cede_notself;
502 } else {
503 EV::loop EV::LOOP_ONESHOT;
504 }
505 }
506
507 my $time = EV::time - $time;
508
509 $TICK_START += $time; # do not account sync jobs to server load
510
511 wantarray ? @res : $res[0]
512 } else {
513 # we are in another coroutine, how wonderful, everything just works
514
515 $job->()
516 }
517}
518
519=item $coro = cf::async_ext { BLOCK }
520
521Like async, but this coro is automatically being canceled when the
522extension calling this is being unloaded.
523
524=cut
525
526sub async_ext(&) {
527 my $cb = shift;
528
529 my $coro = &Coro::async ($cb);
530
531 $coro->on_destroy (sub {
532 delete $EXT_CORO{$coro+0};
533 });
534 $EXT_CORO{$coro+0} = $coro;
535
536 $coro
537}
538
539=item fork_call { }, $args
540
541Executes the given code block with the given arguments in a seperate
542process, returning the results. Everything must be serialisable with
543Coro::Storable. May, of course, block. Note that the executed sub may
544never block itself or use any form of event handling.
545
546=cut
547
548sub fork_call(&@) {
549 my ($cb, @args) = @_;
550
551 # we seemingly have to make a local copy of the whole thing,
552 # otherwise perl prematurely frees the stuff :/
553 # TODO: investigate and fix (likely this will be rather laborious)
554
555 my @res = Coro::Util::fork_eval {
556 reset_signals;
557 &$cb
558 }, @args;
559
560 wantarray ? @res : $res[-1]
561}
562
563=item $coin = coin_from_name $name
564
565=cut
566
567our %coin_alias = (
568 "silver" => "silvercoin",
569 "silvercoin" => "silvercoin",
570 "silvercoins" => "silvercoin",
571 "gold" => "goldcoin",
572 "goldcoin" => "goldcoin",
573 "goldcoins" => "goldcoin",
574 "platinum" => "platinacoin",
575 "platinumcoin" => "platinacoin",
576 "platinumcoins" => "platinacoin",
577 "platina" => "platinacoin",
578 "platinacoin" => "platinacoin",
579 "platinacoins" => "platinacoin",
580 "royalty" => "royalty",
581 "royalties" => "royalty",
582);
583
584sub coin_from_name($) {
585 $coin_alias{$_[0]}
586 ? cf::arch::find $coin_alias{$_[0]}
587 : undef
588}
589
590=item $value = cf::db_get $family => $key
591
592Returns a single value from the environment database.
593
594=item cf::db_put $family => $key => $value
595
596Stores the given C<$value> in the family. It can currently store binary
597data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
598
599=item $db = cf::db_table "name"
600
601Create and/or open a new database table. The string must not be "db" and must be unique
602within each server.
603
604=cut
605
606sub db_table($) {
607 my ($name) = @_;
608 my $db = BDB::db_create $DB_ENV;
609
610 eval {
611 $db->set_flags (BDB::CHKSUM);
612
613 utf8::encode $name;
614 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
615 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
616 cf::cleanup "db_open(db): $!" if $!;
617 };
618 cf::cleanup "db_open(db): $@" if $@;
619
620 $db
621}
622
623our $DB;
624
625sub db_init {
626 cf::sync_job {
627 $DB ||= db_table "db";
628 };
629}
630
631sub db_get($$) {
632 my $key = "$_[0]/$_[1]";
633
634 cf::sync_job {
635 BDB::db_get $DB, undef, $key, my $data;
636
637 $! ? ()
638 : $data
639 }
640}
641
642sub db_put($$$) {
643 BDB::dbreq_pri 4;
644 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
645}
646
647=item cf::cache $id => [$paths...], $processversion => $process
648
649Generic caching function that returns the value of the resource $id,
650caching and regenerating as required.
651
652This function can block.
653
654=cut
655
656sub cache {
657 my ($id, $src, $processversion, $process) = @_;
658
659 my $meta =
660 join "\x00",
661 $processversion,
662 map {
663 aio_stat $_
664 and Carp::croak "$_: $!";
665
666 ($_, (stat _)[7,9])
667 } @$src;
668
669 my $dbmeta = db_get cache => "$id/meta";
670 if ($dbmeta ne $meta) {
671 # changed, we may need to process
672
673 my @data;
674 my $md5;
675
676 for (0 .. $#$src) {
677 0 <= aio_load $src->[$_], $data[$_]
678 or Carp::croak "$src->[$_]: $!";
679 }
680
681 # if processing is expensive, check
682 # checksum first
683 if (1) {
684 $md5 =
685 join "\x00",
686 $processversion,
687 map {
688 cf::cede_to_tick;
689 ($src->[$_], Digest::MD5::md5_hex $data[$_])
690 } 0.. $#$src;
691
692
693 my $dbmd5 = db_get cache => "$id/md5";
694 if ($dbmd5 eq $md5) {
695 db_put cache => "$id/meta", $meta;
696
697 return db_get cache => "$id/data";
698 }
699 }
700
701 my $t1 = Time::HiRes::time;
702 my $data = $process->(\@data);
703 my $t2 = Time::HiRes::time;
704
705 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
706
707 db_put cache => "$id/data", $data;
708 db_put cache => "$id/md5" , $md5;
709 db_put cache => "$id/meta", $meta;
710
711 return $data;
712 }
713
714 db_get cache => "$id/data"
715}
716
717=item cf::datalog type => key => value, ...
718
719Log a datalog packet of the given type with the given key-value pairs.
720
721=cut
722
723sub datalog($@) {
724 my ($type, %kv) = @_;
725 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
726}
727
728=back
729
730=cut
731
732#############################################################################
733
734=head2 ATTACHABLE OBJECTS
735
736Many objects in deliantra are so-called attachable objects. That means you can
737attach callbacks/event handlers (a collection of which is called an "attachment")
738to it. All such attachable objects support the following methods.
739
740In the following description, CLASS can be any of C<global>, C<object>
741C<player>, C<client> or C<map> (i.e. the attachable objects in
742Deliantra).
743
744=over 4
745
746=item $attachable->attach ($attachment, key => $value...)
747
748=item $attachable->detach ($attachment)
749
750Attach/detach a pre-registered attachment to a specific object and give it
751the specified key/value pairs as arguments.
752
753Example, attach a minesweeper attachment to the given object, making it a
75410x10 minesweeper game:
755
756 $obj->attach (minesweeper => width => 10, height => 10);
757
758=item $bool = $attachable->attached ($name)
759
760Checks wether the named attachment is currently attached to the object.
761
762=item cf::CLASS->attach ...
763
764=item cf::CLASS->detach ...
765
766Define an anonymous attachment and attach it to all objects of the given
767CLASS. See the next function for an explanation of its arguments.
768
769You can attach to global events by using the C<cf::global> class.
770
771Example, log all player logins:
772
773 cf::player->attach (
774 on_login => sub {
775 my ($pl) = @_;
776 ...
777 },
778 );
779
780Example, attach to the jeweler skill:
781
782 cf::object->attach (
783 type => cf::SKILL,
784 subtype => cf::SK_JEWELER,
785 on_use_skill => sub {
786 my ($sk, $ob, $part, $dir, $msg) = @_;
787 ...
788 },
789 );
790
791=item cf::CLASS::attachment $name, ...
792
793Register an attachment by C<$name> through which attachable objects of the
794given CLASS can refer to this attachment.
795
796Some classes such as deliantra maps and objects can specify attachments
797that are attached at load/instantiate time, thus the need for a name.
798
799These calls expect any number of the following handler/hook descriptions:
800
801=over 4
802
803=item prio => $number
804
805Set the priority for all following handlers/hooks (unless overwritten
806by another C<prio> setting). Lower priority handlers get executed
807earlier. The default priority is C<0>, and many built-in handlers are
808registered at priority C<-1000>, so lower priorities should not be used
809unless you know what you are doing.
810
811=item type => $type
812
813(Only for C<< cf::object->attach >> calls), limits the attachment to the
814given type of objects only (the additional parameter C<subtype> can be
815used to further limit to the given subtype).
816
817=item on_I<event> => \&cb
818
819Call the given code reference whenever the named event happens (event is
820something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
821handlers are recognised generally depends on the type of object these
822handlers attach to).
823
824See F<include/eventinc.h> for the full list of events supported, and their
825class.
826
827=item package => package::
828
829Look for sub functions of the name C<< on_I<event> >> in the given
830package and register them. Only handlers for eevents supported by the
831object/class are recognised.
832
833=back
834
835Example, define an attachment called "sockpuppet" that calls the given
836event handler when a monster attacks:
837
838 cf::object::attachment sockpuppet =>
839 on_skill_attack => sub {
840 my ($self, $victim) = @_;
841 ...
842 }
843 }
844
845=item $attachable->valid
846
847Just because you have a perl object does not mean that the corresponding
848C-level object still exists. If you try to access an object that has no
849valid C counterpart anymore you get an exception at runtime. This method
850can be used to test for existence of the C object part without causing an
851exception.
852
853=cut
854
855# the following variables are defined in .xs and must not be re-created
856our @CB_GLOBAL = (); # registry for all global events
857our @CB_ATTACHABLE = (); # registry for all attachables
858our @CB_OBJECT = (); # all objects (should not be used except in emergency)
859our @CB_PLAYER = ();
860our @CB_CLIENT = ();
861our @CB_TYPE = (); # registry for type (cf-object class) based events
862our @CB_MAP = ();
863
864my %attachment;
865
866sub cf::attachable::thawer_merge {
867 # simply override everything except _meta
868 local $_[0]{_meta};
869 %{$_[0]} = %{$_[1]};
870}
871
872sub _attach_cb($$$$) {
873 my ($registry, $event, $prio, $cb) = @_;
874
875 use sort 'stable';
876
877 $cb = [$prio, $cb];
878
879 @{$registry->[$event]} = sort
880 { $a->[0] cmp $b->[0] }
881 @{$registry->[$event] || []}, $cb;
882}
883
884# hack
885my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
886
887# attach handles attaching event callbacks
888# the only thing the caller has to do is pass the correct
889# registry (== where the callback attaches to).
890sub _attach {
891 my ($registry, $klass, @arg) = @_;
892
893 my $object_type;
894 my $prio = 0;
895 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
896
897 #TODO: get rid of this hack
898 if ($attachable_klass{$klass}) {
899 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
900 }
901
902 while (@arg) {
903 my $type = shift @arg;
904
905 if ($type eq "prio") {
906 $prio = shift @arg;
907
908 } elsif ($type eq "type") {
909 $object_type = shift @arg;
910 $registry = $CB_TYPE[$object_type] ||= [];
911
912 } elsif ($type eq "subtype") {
913 defined $object_type or Carp::croak "subtype specified without type";
914 my $object_subtype = shift @arg;
915 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
916
917 } elsif ($type eq "package") {
918 my $pkg = shift @arg;
919
920 while (my ($name, $id) = each %cb_id) {
921 if (my $cb = $pkg->can ($name)) {
922 _attach_cb $registry, $id, $prio, $cb;
923 }
924 }
925
926 } elsif (exists $cb_id{$type}) {
927 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
928
929 } elsif (ref $type) {
930 warn "attaching objects not supported, ignoring.\n";
931
932 } else {
933 shift @arg;
934 warn "attach argument '$type' not supported, ignoring.\n";
935 }
936 }
937}
938
939sub _object_attach {
940 my ($obj, $name, %arg) = @_;
941
942 return if exists $obj->{_attachment}{$name};
943
944 if (my $attach = $attachment{$name}) {
945 my $registry = $obj->registry;
946
947 for (@$attach) {
948 my ($klass, @attach) = @$_;
949 _attach $registry, $klass, @attach;
950 }
951
952 $obj->{$name} = \%arg;
953 } else {
954 warn "object uses attachment '$name' which is not available, postponing.\n";
955 }
956
957 $obj->{_attachment}{$name} = undef;
958}
959
960sub cf::attachable::attach {
961 if (ref $_[0]) {
962 _object_attach @_;
963 } else {
964 _attach shift->_attach_registry, @_;
965 }
966 _recalc_want;
967};
968
969# all those should be optimised
970sub cf::attachable::detach {
971 my ($obj, $name) = @_;
972
973 if (ref $obj) {
974 delete $obj->{_attachment}{$name};
975 reattach ($obj);
976 } else {
977 Carp::croak "cannot, currently, detach class attachments";
978 }
979 _recalc_want;
980};
981
982sub cf::attachable::attached {
983 my ($obj, $name) = @_;
984
985 exists $obj->{_attachment}{$name}
986}
987
988for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
989 eval "#line " . __LINE__ . " 'cf.pm'
990 sub cf::\L$klass\E::_attach_registry {
991 (\\\@CB_$klass, KLASS_$klass)
992 }
993
994 sub cf::\L$klass\E::attachment {
995 my \$name = shift;
996
997 \$attachment{\$name} = [[KLASS_$klass, \@_]];
998 }
999 ";
1000 die if $@;
1001}
1002
1003our $override;
1004our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
1005
1006sub override {
1007 $override = 1;
1008 @INVOKE_RESULTS = (@_);
1009}
1010
1011sub do_invoke {
1012 my $event = shift;
1013 my $callbacks = shift;
1014
1015 @INVOKE_RESULTS = ();
1016
1017 local $override;
1018
1019 for (@$callbacks) {
1020 eval { &{$_->[1]} };
1021
1022 if ($@) {
1023 warn "$@";
1024 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
1025 override;
1026 }
1027
1028 return 1 if $override;
1029 }
1030
1031 0
1032}
1033
1034=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
1035
1036=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
1037
1038Generate an object-specific event with the given arguments.
1039
1040This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
1041removed in future versions), and there is no public API to access override
1042results (if you must, access C<@cf::INVOKE_RESULTS> directly).
1043
1044=back
1045
1046=cut
1047
1048#############################################################################
1049# object support
1050
1051sub _object_equal($$);
1052sub _object_equal($$) {
1053 my ($a, $b) = @_;
1054
1055 return 0 unless (ref $a) eq (ref $b);
1056
1057 if ("HASH" eq ref $a) {
1058 my @ka = keys %$a;
1059 my @kb = keys %$b;
1060
1061 return 0 if @ka != @kb;
1062
1063 for (0 .. $#ka) {
1064 return 0 unless $ka[$_] eq $kb[$_];
1065 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1066 }
1067
1068 } elsif ("ARRAY" eq ref $a) {
1069
1070 return 0 if @$a != @$b;
1071
1072 for (0 .. $#$a) {
1073 return 0 unless _object_equal $a->[$_], $b->[$_];
1074 }
1075
1076 } elsif ($a ne $b) {
1077 return 0;
1078 }
1079
1080 1
1081}
1082
1083our $SLOW_MERGES;#d#
1084sub _can_merge {
1085 my ($ob1, $ob2) = @_;
1086
1087 ++$SLOW_MERGES;#d#
1088
1089 # we do the slow way here
1090 return _object_equal $ob1, $ob2
1091}
1092
1093sub reattach {
1094 # basically do the same as instantiate, without calling instantiate
1095 my ($obj) = @_;
1096
1097 # no longer needed after getting rid of delete_package?
1098 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1099
1100 my $registry = $obj->registry;
1101
1102 @$registry = ();
1103
1104 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
1105
1106 for my $name (keys %{ $obj->{_attachment} || {} }) {
1107 if (my $attach = $attachment{$name}) {
1108 for (@$attach) {
1109 my ($klass, @attach) = @$_;
1110 _attach $registry, $klass, @attach;
1111 }
1112 } else {
1113 warn "object uses attachment '$name' that is not available, postponing.\n";
1114 }
1115 }
1116}
1117
1118cf::attachable->attach (
1119 prio => -1000000,
1120 on_instantiate => sub {
1121 my ($obj, $data) = @_;
1122
1123 $data = decode_json $data;
1124
1125 for (@$data) {
1126 my ($name, $args) = @$_;
1127
1128 $obj->attach ($name, %{$args || {} });
1129 }
1130 },
1131 on_reattach => \&reattach,
1132 on_clone => sub {
1133 my ($src, $dst) = @_;
1134
1135 @{$dst->registry} = @{$src->registry};
1136
1137 %$dst = %$src;
1138
1139 %{$dst->{_attachment}} = %{$src->{_attachment}}
1140 if exists $src->{_attachment};
1141 },
1142);
1143
1144sub object_freezer_save {
1145 my ($filename, $rdata, $objs) = @_;
1146
1147 sync_job {
1148 if (length $$rdata) {
1149 utf8::decode (my $decname = $filename);
1150 warn sprintf "saving %s (%d,%d)\n",
1151 $decname, length $$rdata, scalar @$objs;
1152
1153 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1154 aio_chmod $fh, SAVE_MODE;
1155 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1156 aio_fsync $fh if $cf::USE_FSYNC;
1157 aio_close $fh;
1158
1159 if (@$objs) {
1160 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1161 aio_chmod $fh, SAVE_MODE;
1162 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1163 aio_write $fh, 0, (length $data), $data, 0;
1164 aio_fsync $fh if $cf::USE_FSYNC;
1165 aio_close $fh;
1166 aio_rename "$filename.pst~", "$filename.pst";
1167 }
1168 } else {
1169 aio_unlink "$filename.pst";
1170 }
1171
1172 aio_rename "$filename~", $filename;
1173
1174 $filename =~ s%/[^/]+$%%;
1175 aio_pathsync $filename if $cf::USE_FSYNC;
1176 } else {
1177 warn "unable to save objects: $filename~: $!\n";
1178 }
1179 } else {
1180 aio_unlink $filename;
1181 aio_unlink "$filename.pst";
1182 }
1183 };
1184}
1185
1186sub object_freezer_as_string {
1187 my ($rdata, $objs) = @_;
1188
1189 use Data::Dumper;
1190
1191 $$rdata . Dumper $objs
1192}
1193
1194sub object_thawer_load {
1195 my ($filename) = @_;
1196
1197 my ($data, $av);
1198
1199 (aio_load $filename, $data) >= 0
1200 or return;
1201
1202 unless (aio_stat "$filename.pst") {
1203 (aio_load "$filename.pst", $av) >= 0
1204 or return;
1205
1206 my $st = eval { Coro::Storable::thaw $av };
1207 $av = $st->{objs};
1208 }
1209
1210 utf8::decode (my $decname = $filename);
1211 warn sprintf "loading %s (%d,%d)\n",
1212 $decname, length $data, scalar @{$av || []};
1213
1214 ($data, $av)
1215}
1216
1217=head2 COMMAND CALLBACKS
1218
1219=over 4
1220
1221=cut
1222
1223#############################################################################
1224# command handling &c
1225
1226=item cf::register_command $name => \&callback($ob,$args);
1227
1228Register a callback for execution when the client sends the user command
1229$name.
1230
1231=cut
1232
1233sub register_command {
1234 my ($name, $cb) = @_;
1235
1236 my $caller = caller;
1237 #warn "registering command '$name/$time' to '$caller'";
1238
1239 push @{ $COMMAND{$name} }, [$caller, $cb];
1240}
1241
1242=item cf::register_extcmd $name => \&callback($pl,$packet);
1243
1244Register a callback for execution when the client sends an (synchronous)
1245extcmd packet. Ext commands will be processed in the order they are
1246received by the server, like other user commands. The first argument is
1247the logged-in player. Ext commands can only be processed after a player
1248has logged in successfully.
1249
1250If the callback returns something, it is sent back as if reply was being
1251called.
1252
1253=item cf::register_exticmd $name => \&callback($ns,$packet);
1254
1255Register a callback for execution when the client sends an (asynchronous)
1256exticmd packet. Exti commands are processed by the server as soon as they
1257are received, i.e. out of order w.r.t. other commands. The first argument
1258is a client socket. Exti commands can be received anytime, even before
1259log-in.
1260
1261If the callback returns something, it is sent back as if reply was being
1262called.
1263
1264=cut
1265
1266sub register_extcmd {
1267 my ($name, $cb) = @_;
1268
1269 $EXTCMD{$name} = $cb;
1270}
1271
1272sub register_exticmd {
1273 my ($name, $cb) = @_;
1274
1275 $EXTICMD{$name} = $cb;
1276}
1277
1278use File::Glob ();
1279
1280cf::player->attach (
1281 on_command => sub {
1282 my ($pl, $name, $params) = @_;
1283
1284 my $cb = $COMMAND{$name}
1285 or return;
1286
1287 for my $cmd (@$cb) {
1288 $cmd->[1]->($pl->ob, $params);
1289 }
1290
1291 cf::override;
1292 },
1293 on_extcmd => sub {
1294 my ($pl, $buf) = @_;
1295
1296 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1297
1298 if (ref $msg) {
1299 my ($type, $reply, @payload) =
1300 "ARRAY" eq ref $msg
1301 ? @$msg
1302 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1303
1304 my @reply;
1305
1306 if (my $cb = $EXTCMD{$type}) {
1307 @reply = $cb->($pl, @payload);
1308 }
1309
1310 $pl->ext_reply ($reply, @reply)
1311 if $reply;
1312
1313 } else {
1314 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1315 }
1316
1317 cf::override;
1318 },
1319);
1320
1321# "readahead" all extensions
1322sub cache_extensions {
1323 my $grp = IO::AIO::aio_group;
1324
1325 add $grp IO::AIO::aio_readdir $LIBDIR, sub {
1326 for (grep /\.ext$/, @{$_[0]}) {
1327 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1328 }
1329 };
1330
1331 $grp
1332}
1333
1334sub load_extensions {
1335 cf::sync_job {
1336 my %todo;
1337
1338 for my $path (<$LIBDIR/*.ext>) {
1339 next unless -r $path;
1340
1341 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1342 my $base = $1;
1343 my $pkg = $1;
1344 $pkg =~ s/[^[:word:]]/_/g;
1345 $pkg = "ext::$pkg";
1346
1347 open my $fh, "<:utf8", $path
1348 or die "$path: $!";
1349
1350 my $source = do { local $/; <$fh> };
1351
1352 my %ext = (
1353 path => $path,
1354 base => $base,
1355 pkg => $pkg,
1356 );
1357
1358 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1359 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1360
1361 $ext{source} =
1362 "package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
1363 . "#line 1 \"$path\"\n{\n"
1364 . $source
1365 . "\n};\n1";
1366
1367 $todo{$base} = \%ext;
1368 }
1369
1370 my %done;
1371 while (%todo) {
1372 my $progress;
1373
1374 while (my ($k, $v) = each %todo) {
1375 for (split /,\s*/, $v->{meta}{depends}) {
1376 goto skip
1377 unless exists $done{$_};
1378 }
1379
1380 warn "... loading '$k' into '$v->{pkg}'\n";
1381
1382 unless (eval $v->{source}) {
1383 my $msg = $@ ? "$v->{path}: $@\n"
1384 : "$v->{base}: extension inactive.\n";
1385
1386 if (exists $v->{meta}{mandatory}) {
1387 warn $msg;
1388 cf::cleanup "mandatory extension failed to load, exiting.";
1389 }
1390
1391 warn $msg;
1392 }
1393
1394 $done{$k} = delete $todo{$k};
1395 push @EXTS, $v->{pkg};
1396 $progress = 1;
1397 }
1398
1399 skip:
1400 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1401 unless $progress;
1402 }
1403 };
1404}
1405
1406#############################################################################
1407
1408=back
1409
1410=head2 CORE EXTENSIONS
1411
1412Functions and methods that extend core deliantra objects.
1413
1414=cut
1415
1416package cf::player;
1417
1418use Coro::AIO;
1419
1420=head3 cf::player
1421
1422=over 4
1423
1424=item cf::player::num_playing
1425
1426Returns the official number of playing players, as per the Crossfire metaserver rules.
1427
1428=cut
1429
1430sub num_playing {
1431 scalar grep
1432 $_->ob->map
1433 && !$_->hidden
1434 && !$_->ob->flag (cf::FLAG_WIZ),
1435 cf::player::list
1436}
1437
1438=item cf::player::find $login
1439
1440Returns the given player object, loading it if necessary (might block).
1441
1442=cut
1443
1444sub playerdir($) {
1445 "$PLAYERDIR/"
1446 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1447}
1448
1449sub path($) {
1450 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1451
1452 (playerdir $login) . "/playerdata"
1453}
1454
1455sub find_active($) {
1456 $cf::PLAYER{$_[0]}
1457 and $cf::PLAYER{$_[0]}->active
1458 and $cf::PLAYER{$_[0]}
1459}
1460
1461sub exists($) {
1462 my ($login) = @_;
1463
1464 $cf::PLAYER{$login}
1465 or !aio_stat path $login
1466}
1467
1468sub find($) {
1469 return $cf::PLAYER{$_[0]} || do {
1470 my $login = $_[0];
1471
1472 my $guard = cf::lock_acquire "user_find:$login";
1473
1474 $cf::PLAYER{$_[0]} || do {
1475 # rename old playerfiles to new ones
1476 #TODO: remove when no longer required
1477 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1478 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1479 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1480 aio_unlink +(playerdir $login) . "/$login.pl";
1481
1482 my $f = new_from_file cf::object::thawer path $login
1483 or return;
1484
1485 my $pl = cf::player::load_pl $f
1486 or return;
1487
1488 local $cf::PLAYER_LOADING{$login} = $pl;
1489 $f->resolve_delayed_derefs;
1490 $cf::PLAYER{$login} = $pl
1491 }
1492 }
1493}
1494
1495sub save($) {
1496 my ($pl) = @_;
1497
1498 return if $pl->{deny_save};
1499
1500 my $path = path $pl;
1501 my $guard = cf::lock_acquire "user_save:$path";
1502
1503 return if $pl->{deny_save};
1504
1505 aio_mkdir playerdir $pl, 0770;
1506 $pl->{last_save} = $cf::RUNTIME;
1507
1508 cf::get_slot 0.01;
1509
1510 $pl->save_pl ($path);
1511 cf::cede_to_tick;
1512}
1513
1514sub new($) {
1515 my ($login) = @_;
1516
1517 my $self = create;
1518
1519 $self->ob->name ($login);
1520 $self->{deny_save} = 1;
1521
1522 $cf::PLAYER{$login} = $self;
1523
1524 $self
1525}
1526
1527=item $player->send_msg ($channel, $msg, $color, [extra...])
1528
1529=cut
1530
1531sub send_msg {
1532 my $ns = shift->ns
1533 or return;
1534 $ns->send_msg (@_);
1535}
1536
1537=item $pl->quit_character
1538
1539Nukes the player without looking back. If logged in, the connection will
1540be destroyed. May block for a long time.
1541
1542=cut
1543
1544sub quit_character {
1545 my ($pl) = @_;
1546
1547 my $name = $pl->ob->name;
1548
1549 $pl->{deny_save} = 1;
1550 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1551
1552 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1553 $pl->deactivate;
1554 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1555 $pl->ob->check_score;
1556 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1557 $pl->ns->destroy if $pl->ns;
1558
1559 my $path = playerdir $pl;
1560 my $temp = "$path~$cf::RUNTIME~deleting~";
1561 aio_rename $path, $temp;
1562 delete $cf::PLAYER{$pl->ob->name};
1563 $pl->destroy;
1564
1565 my $prefix = qr<^~\Q$name\E/>;
1566
1567 # nuke player maps
1568 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1569
1570 IO::AIO::aio_rmtree $temp;
1571}
1572
1573=item $pl->kick
1574
1575Kicks a player out of the game. This destroys the connection.
1576
1577=cut
1578
1579sub kick {
1580 my ($pl, $kicker) = @_;
1581
1582 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1583 $pl->killer ("kicked");
1584 $pl->ns->destroy;
1585}
1586
1587=item cf::player::list_logins
1588
1589Returns am arrayref of all valid playernames in the system, can take a
1590while and may block, so not sync_job-capable, ever.
1591
1592=cut
1593
1594sub list_logins {
1595 my $dirs = aio_readdir $PLAYERDIR
1596 or return [];
1597
1598 my @logins;
1599
1600 for my $login (@$dirs) {
1601 my $path = path $login;
1602
1603 # a .pst is a dead give-away for a valid player
1604 # if no pst file found, open and chekc for blocked users
1605 if (aio_stat "$path.pst") {
1606 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1607 aio_read $fh, 0, 512, my $buf, 0 or next;
1608 $buf !~ /^password -------------$/m or next; # official not-valid tag
1609 }
1610
1611 utf8::decode $login;
1612 push @logins, $login;
1613 }
1614
1615 \@logins
1616}
1617
1618=item $player->maps
1619
1620Returns an arrayref of map paths that are private for this
1621player. May block.
1622
1623=cut
1624
1625sub maps($) {
1626 my ($pl) = @_;
1627
1628 $pl = ref $pl ? $pl->ob->name : $pl;
1629
1630 my $files = aio_readdir playerdir $pl
1631 or return;
1632
1633 my @paths;
1634
1635 for (@$files) {
1636 utf8::decode $_;
1637 next if /\.(?:pl|pst)$/;
1638 next unless /^$PATH_SEP/o;
1639
1640 push @paths, cf::map::normalise "~$pl/$_";
1641 }
1642
1643 \@paths
1644}
1645
1646=item $protocol_xml = $player->expand_cfpod ($cfpod)
1647
1648Expand deliantra pod fragments into protocol xml.
1649
1650=item $player->ext_reply ($msgid, @msg)
1651
1652Sends an ext reply to the player.
1653
1654=cut
1655
1656sub ext_reply($$@) {
1657 my ($self, $id, @msg) = @_;
1658
1659 $self->ns->ext_reply ($id, @msg)
1660}
1661
1662=item $player->ext_msg ($type, @msg)
1663
1664Sends an ext event to the client.
1665
1666=cut
1667
1668sub ext_msg($$@) {
1669 my ($self, $type, @msg) = @_;
1670
1671 $self->ns->ext_msg ($type, @msg);
1672}
1673
1674=head3 cf::region
1675
1676=over 4
1677
1678=cut
1679
1680package cf::region;
1681
1682=item cf::region::find_by_path $path
1683
1684Tries to decuce the likely region for a map knowing only its path.
1685
1686=cut
1687
1688sub find_by_path($) {
1689 my ($path) = @_;
1690
1691 my ($match, $specificity);
1692
1693 for my $region (list) {
1694 if ($region->{match} && $path =~ $region->{match}) {
1695 ($match, $specificity) = ($region, $region->specificity)
1696 if $region->specificity > $specificity;
1697 }
1698 }
1699
1700 $match
1701}
1702
1703=back
1704
1705=head3 cf::map
1706
1707=over 4
1708
1709=cut
1710
1711package cf::map;
1712
1713use Fcntl;
1714use Coro::AIO;
1715
1716use overload
1717 '""' => \&as_string,
1718 fallback => 1;
1719
1720our $MAX_RESET = 3600;
1721our $DEFAULT_RESET = 3000;
1722
1723sub generate_random_map {
1724 my ($self, $rmp) = @_;
1725
1726 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1727
1728 # mit "rum" bekleckern, nicht
1729 $self->_create_random_map (
1730 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1731 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1732 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1733 $rmp->{exit_on_final_map},
1734 $rmp->{xsize}, $rmp->{ysize},
1735 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1736 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1737 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1738 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1739 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1740 (cf::region::find $rmp->{region}), $rmp->{custom}
1741 )
1742}
1743
1744=item cf::map->register ($regex, $prio)
1745
1746Register a handler for the map path matching the given regex at the
1747givne priority (higher is better, built-in handlers have priority 0, the
1748default).
1749
1750=cut
1751
1752sub register {
1753 my (undef, $regex, $prio) = @_;
1754 my $pkg = caller;
1755
1756 no strict;
1757 push @{"$pkg\::ISA"}, __PACKAGE__;
1758
1759 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1760}
1761
1762# also paths starting with '/'
1763$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1764
1765sub thawer_merge {
1766 my ($self, $merge) = @_;
1767
1768 # we have to keep some variables in memory intact
1769 local $self->{path};
1770 local $self->{load_path};
1771
1772 $self->SUPER::thawer_merge ($merge);
1773}
1774
1775sub normalise {
1776 my ($path, $base) = @_;
1777
1778 $path = "$path"; # make sure its a string
1779
1780 $path =~ s/\.map$//;
1781
1782 # map plan:
1783 #
1784 # /! non-realised random map exit (special hack!)
1785 # {... are special paths that are not being touched
1786 # ?xxx/... are special absolute paths
1787 # ?random/... random maps
1788 # /... normal maps
1789 # ~user/... per-player map of a specific user
1790
1791 $path =~ s/$PATH_SEP/\//go;
1792
1793 # treat it as relative path if it starts with
1794 # something that looks reasonable
1795 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1796 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1797
1798 $base =~ s{[^/]+/?$}{};
1799 $path = "$base/$path";
1800 }
1801
1802 for ($path) {
1803 redo if s{//}{/};
1804 redo if s{/\.?/}{/};
1805 redo if s{/[^/]+/\.\./}{/};
1806 }
1807
1808 $path
1809}
1810
1811sub new_from_path {
1812 my (undef, $path, $base) = @_;
1813
1814 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1815
1816 $path = normalise $path, $base;
1817
1818 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1819 if ($path =~ $EXT_MAP{$pkg}[1]) {
1820 my $self = bless cf::map::new, $pkg;
1821 $self->{path} = $path; $self->path ($path);
1822 $self->init; # pass $1 etc.
1823 return $self;
1824 }
1825 }
1826
1827 Carp::cluck "unable to resolve path '$path' (base '$base').";
1828 ()
1829}
1830
1831sub init {
1832 my ($self) = @_;
1833
1834 $self
1835}
1836
1837sub as_string {
1838 my ($self) = @_;
1839
1840 "$self->{path}"
1841}
1842
1843# the displayed name, this is a one way mapping
1844sub visible_name {
1845 &as_string
1846}
1847
1848# the original (read-only) location
1849sub load_path {
1850 my ($self) = @_;
1851
1852 "$MAPDIR/$self->{path}.map"
1853}
1854
1855# the temporary/swap location
1856sub save_path {
1857 my ($self) = @_;
1858
1859 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1860 "$TMPDIR/$path.map"
1861}
1862
1863# the unique path, undef == no special unique path
1864sub uniq_path {
1865 my ($self) = @_;
1866
1867 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1868 "$UNIQUEDIR/$path"
1869}
1870
1871sub decay_objects {
1872 my ($self) = @_;
1873
1874 return if $self->{deny_reset};
1875
1876 $self->do_decay_objects;
1877}
1878
1879sub unlink_save {
1880 my ($self) = @_;
1881
1882 utf8::encode (my $save = $self->save_path);
1883 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1884 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1885}
1886
1887sub load_header_from($) {
1888 my ($self, $path) = @_;
1889
1890 utf8::encode $path;
1891 my $f = new_from_file cf::object::thawer $path
1892 or return;
1893
1894 $self->_load_header ($f)
1895 or return;
1896
1897 local $MAP_LOADING{$self->{path}} = $self;
1898 $f->resolve_delayed_derefs;
1899
1900 $self->{load_path} = $path;
1901
1902 1
1903}
1904
1905sub load_header_orig {
1906 my ($self) = @_;
1907
1908 $self->load_header_from ($self->load_path)
1909}
1910
1911sub load_header_temp {
1912 my ($self) = @_;
1913
1914 $self->load_header_from ($self->save_path)
1915}
1916
1917sub prepare_temp {
1918 my ($self) = @_;
1919
1920 $self->last_access ((delete $self->{last_access})
1921 || $cf::RUNTIME); #d#
1922 # safety
1923 $self->{instantiate_time} = $cf::RUNTIME
1924 if $self->{instantiate_time} > $cf::RUNTIME;
1925}
1926
1927sub prepare_orig {
1928 my ($self) = @_;
1929
1930 $self->{load_original} = 1;
1931 $self->{instantiate_time} = $cf::RUNTIME;
1932 $self->last_access ($cf::RUNTIME);
1933 $self->instantiate;
1934}
1935
1936sub load_header {
1937 my ($self) = @_;
1938
1939 if ($self->load_header_temp) {
1940 $self->prepare_temp;
1941 } else {
1942 $self->load_header_orig
1943 or return;
1944 $self->prepare_orig;
1945 }
1946
1947 $self->{deny_reset} = 1
1948 if $self->no_reset;
1949
1950 $self->default_region (cf::region::find_by_path $self->{path})
1951 unless $self->default_region;
1952
1953 1
1954}
1955
1956sub find;
1957sub find {
1958 my ($path, $origin) = @_;
1959
1960 $path = normalise $path, $origin && $origin->path;
1961
1962 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1963 my $guard2 = cf::lock_acquire "map_find:$path";
1964
1965 $cf::MAP{$path} || do {
1966 my $map = new_from_path cf::map $path
1967 or return;
1968
1969 $map->{last_save} = $cf::RUNTIME;
1970
1971 $map->load_header
1972 or return;
1973
1974 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1975 # doing this can freeze the server in a sync job, obviously
1976 #$cf::WAIT_FOR_TICK->wait;
1977 undef $guard2;
1978 undef $guard1;
1979 $map->reset;
1980 return find $path;
1981 }
1982
1983 $cf::MAP{$path} = $map
1984 }
1985}
1986
1987sub pre_load { }
1988sub post_load { }
1989
1990sub load {
1991 my ($self) = @_;
1992
1993 local $self->{deny_reset} = 1; # loading can take a long time
1994
1995 my $path = $self->{path};
1996
1997 {
1998 my $guard = cf::lock_acquire "map_data:$path";
1999
2000 return unless $self->valid;
2001 return unless $self->in_memory == cf::MAP_SWAPPED;
2002
2003 $self->in_memory (cf::MAP_LOADING);
2004
2005 $self->alloc;
2006
2007 $self->pre_load;
2008 cf::cede_to_tick;
2009
2010 my $f = new_from_file cf::object::thawer $self->{load_path};
2011 $f->skip_block;
2012 $self->_load_objects ($f)
2013 or return;
2014
2015 $self->post_load_original
2016 if delete $self->{load_original};
2017
2018 if (my $uniq = $self->uniq_path) {
2019 utf8::encode $uniq;
2020 unless (aio_stat $uniq) {
2021 if (my $f = new_from_file cf::object::thawer $uniq) {
2022 $self->clear_unique_items;
2023 $self->_load_objects ($f);
2024 $f->resolve_delayed_derefs;
2025 }
2026 }
2027 }
2028
2029 $f->resolve_delayed_derefs;
2030
2031 cf::cede_to_tick;
2032 # now do the right thing for maps
2033 $self->link_multipart_objects;
2034 $self->difficulty ($self->estimate_difficulty)
2035 unless $self->difficulty;
2036 cf::cede_to_tick;
2037
2038 unless ($self->{deny_activate}) {
2039 $self->decay_objects;
2040 $self->fix_auto_apply;
2041 $self->update_buttons;
2042 cf::cede_to_tick;
2043 $self->activate;
2044 }
2045
2046 $self->{last_save} = $cf::RUNTIME;
2047 $self->last_access ($cf::RUNTIME);
2048
2049 $self->in_memory (cf::MAP_ACTIVE);
2050 }
2051
2052 $self->post_load;
2053}
2054
2055sub customise_for {
2056 my ($self, $ob) = @_;
2057
2058 return find "~" . $ob->name . "/" . $self->{path}
2059 if $self->per_player;
2060
2061# return find "?party/" . $ob->name . "/" . $self->{path}
2062# if $self->per_party;
2063
2064 $self
2065}
2066
2067# find and load all maps in the 3x3 area around a map
2068sub load_neighbours {
2069 my ($map) = @_;
2070
2071 my @neigh; # diagonal neighbours
2072
2073 for (0 .. 3) {
2074 my $neigh = $map->tile_path ($_)
2075 or next;
2076 $neigh = find $neigh, $map
2077 or next;
2078 $neigh->load;
2079
2080 push @neigh,
2081 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2082 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2083 }
2084
2085 for (grep defined $_->[0], @neigh) {
2086 my ($path, $origin) = @$_;
2087 my $neigh = find $path, $origin
2088 or next;
2089 $neigh->load;
2090 }
2091}
2092
2093sub find_sync {
2094 my ($path, $origin) = @_;
2095
2096 cf::sync_job { find $path, $origin }
2097}
2098
2099sub do_load_sync {
2100 my ($map) = @_;
2101
2102 cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
2103 if $Coro::current == $Coro::main;
2104
2105 cf::sync_job { $map->load };
2106}
2107
2108our %MAP_PREFETCH;
2109our $MAP_PREFETCHER = undef;
2110
2111sub find_async {
2112 my ($path, $origin, $load) = @_;
2113
2114 $path = normalise $path, $origin && $origin->{path};
2115
2116 if (my $map = $cf::MAP{$path}) {
2117 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2118 }
2119
2120 $MAP_PREFETCH{$path} |= $load;
2121
2122 $MAP_PREFETCHER ||= cf::async {
2123 $Coro::current->{desc} = "map prefetcher";
2124
2125 while (%MAP_PREFETCH) {
2126 while (my ($k, $v) = each %MAP_PREFETCH) {
2127 if (my $map = find $k) {
2128 $map->load if $v;
2129 }
2130
2131 delete $MAP_PREFETCH{$k};
2132 }
2133 }
2134 undef $MAP_PREFETCHER;
2135 };
2136 $MAP_PREFETCHER->prio (6);
2137
2138 ()
2139}
2140
2141sub save {
2142 my ($self) = @_;
2143
2144 my $lock = cf::lock_acquire "map_data:$self->{path}";
2145
2146 $self->{last_save} = $cf::RUNTIME;
2147
2148 return unless $self->dirty;
2149
2150 my $save = $self->save_path; utf8::encode $save;
2151 my $uniq = $self->uniq_path; utf8::encode $uniq;
2152
2153 $self->{load_path} = $save;
2154
2155 return if $self->{deny_save};
2156
2157 local $self->{last_access} = $self->last_access;#d#
2158
2159 cf::async {
2160 $Coro::current->{desc} = "map player save";
2161 $_->contr->save for $self->players;
2162 };
2163
2164 cf::get_slot 0.02;
2165
2166 if ($uniq) {
2167 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2168 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2169 } else {
2170 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2171 }
2172}
2173
2174sub swap_out {
2175 my ($self) = @_;
2176
2177 # save first because save cedes
2178 $self->save;
2179
2180 my $lock = cf::lock_acquire "map_data:$self->{path}";
2181
2182 return if $self->players;
2183 return if $self->in_memory != cf::MAP_ACTIVE;
2184 return if $self->{deny_save};
2185
2186 $self->in_memory (cf::MAP_SWAPPED);
2187
2188 $self->deactivate;
2189 $_->clear_links_to ($self) for values %cf::MAP;
2190 $self->clear;
2191}
2192
2193sub reset_at {
2194 my ($self) = @_;
2195
2196 # TODO: safety, remove and allow resettable per-player maps
2197 return 1e99 if $self->{deny_reset};
2198
2199 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2200 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2201
2202 $time + $to
2203}
2204
2205sub should_reset {
2206 my ($self) = @_;
2207
2208 $self->reset_at <= $cf::RUNTIME
2209}
2210
2211sub reset {
2212 my ($self) = @_;
2213
2214 my $lock = cf::lock_acquire "map_data:$self->{path}";
2215
2216 return if $self->players;
2217
2218 warn "resetting map ", $self->path;
2219
2220 $self->in_memory (cf::MAP_SWAPPED);
2221
2222 # need to save uniques path
2223 unless ($self->{deny_save}) {
2224 my $uniq = $self->uniq_path; utf8::encode $uniq;
2225
2226 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2227 if $uniq;
2228 }
2229
2230 delete $cf::MAP{$self->path};
2231
2232 $self->deactivate;
2233 $_->clear_links_to ($self) for values %cf::MAP;
2234 $self->clear;
2235
2236 $self->unlink_save;
2237 $self->destroy;
2238}
2239
2240my $nuke_counter = "aaaa";
2241
2242sub nuke {
2243 my ($self) = @_;
2244
2245 {
2246 my $lock = cf::lock_acquire "map_data:$self->{path}";
2247
2248 delete $cf::MAP{$self->path};
2249
2250 $self->unlink_save;
2251
2252 bless $self, "cf::map";
2253 delete $self->{deny_reset};
2254 $self->{deny_save} = 1;
2255 $self->reset_timeout (1);
2256 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2257
2258 $cf::MAP{$self->path} = $self;
2259 }
2260
2261 $self->reset; # polite request, might not happen
2262}
2263
2264=item $maps = cf::map::tmp_maps
2265
2266Returns an arrayref with all map paths of currently instantiated and saved
2267maps. May block.
2268
2269=cut
2270
2271sub tmp_maps() {
2272 [
2273 map {
2274 utf8::decode $_;
2275 /\.map$/
2276 ? normalise $_
2277 : ()
2278 } @{ aio_readdir $TMPDIR or [] }
2279 ]
2280}
2281
2282=item $maps = cf::map::random_maps
2283
2284Returns an arrayref with all map paths of currently instantiated and saved
2285random maps. May block.
2286
2287=cut
2288
2289sub random_maps() {
2290 [
2291 map {
2292 utf8::decode $_;
2293 /\.map$/
2294 ? normalise "?random/$_"
2295 : ()
2296 } @{ aio_readdir $RANDOMDIR or [] }
2297 ]
2298}
2299
2300=item cf::map::unique_maps
2301
2302Returns an arrayref of paths of all shared maps that have
2303instantiated unique items. May block.
2304
2305=cut
2306
2307sub unique_maps() {
2308 [
2309 map {
2310 utf8::decode $_;
2311 s/\.map$//; # TODO future compatibility hack
2312 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2313 ? ()
2314 : normalise $_
2315 } @{ aio_readdir $UNIQUEDIR or [] }
2316 ]
2317}
2318
2319=back
2320
2321=head3 cf::object
2322
2323=cut
2324
2325package cf::object;
2326
2327=over 4
2328
2329=item $ob->inv_recursive
2330
2331Returns the inventory of the object I<and> their inventories, recursively,
2332but I<not> the object itself.
2333
2334=cut
2335
2336sub inv_recursive_;
2337sub inv_recursive_ {
2338 map { $_, inv_recursive_ $_->inv } @_
2339}
2340
2341sub inv_recursive {
2342 inv_recursive_ inv $_[0]
2343}
2344
2345=item $ref = $ob->ref
2346
2347Creates and returns a persistent reference to an object that can be stored as a string.
2348
2349=item $ob = cf::object::deref ($refstring)
2350
2351returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2352even if the object actually exists. May block.
2353
2354=cut
2355
2356sub deref {
2357 my ($ref) = @_;
2358
2359 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2360 my ($uuid, $name) = ($1, $2);
2361 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2362 or return;
2363 $pl->ob->uuid eq $uuid
2364 or return;
2365
2366 $pl->ob
2367 } else {
2368 warn "$ref: cannot resolve object reference\n";
2369 undef
2370 }
2371}
2372
2373package cf;
2374
2375=back
2376
2377=head3 cf::object::player
2378
2379=over 4
2380
2381=item $player_object->reply ($npc, $msg[, $flags])
2382
2383Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
2384can be C<undef>. Does the right thing when the player is currently in a
2385dialogue with the given NPC character.
2386
2387=cut
2388
2389our $SAY_CHANNEL = {
2390 id => "say",
2391 title => "Map",
2392 reply => "say ",
2393 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2394};
2395
2396our $CHAT_CHANNEL = {
2397 id => "chat",
2398 title => "Chat",
2399 reply => "chat ",
2400 tooltip => "Player chat and shouts, global to the server.",
2401};
2402
2403# rough implementation of a future "reply" method that works
2404# with dialog boxes.
2405#TODO: the first argument must go, split into a $npc->reply_to ( method
2406sub cf::object::player::reply($$$;$) {
2407 my ($self, $npc, $msg, $flags) = @_;
2408
2409 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
2410
2411 if ($self->{record_replies}) {
2412 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2413
2414 } else {
2415 my $pl = $self->contr;
2416
2417 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2418 my $dialog = $pl->{npc_dialog};
2419 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2420
2421 } else {
2422 $msg = $npc->name . " says: $msg" if $npc;
2423 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2424 }
2425 }
2426}
2427
2428=item $object->send_msg ($channel, $msg, $color, [extra...])
2429
2430=cut
2431
2432sub cf::object::send_msg {
2433 my $pl = shift->contr
2434 or return;
2435 $pl->send_msg (@_);
2436}
2437
2438=item $player_object->may ("access")
2439
2440Returns wether the given player is authorized to access resource "access"
2441(e.g. "command_wizcast").
2442
2443=cut
2444
2445sub cf::object::player::may {
28 my ($prefix, $class) = @_; 2446 my ($self, $access) = @_;
29 2447
2448 $self->flag (cf::FLAG_WIZ) ||
2449 (ref $cf::CFG{"may_$access"}
2450 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
2451 : $cf::CFG{"may_$access"})
2452}
2453
2454=item $player_object->enter_link
2455
2456Freezes the player and moves him/her to a special map (C<{link}>).
2457
2458The player should be reasonably safe there for short amounts of time (e.g.
2459for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2460though, as the palyer cannot control the character while it is on the link
2461map.
2462
2463Will never block.
2464
2465=item $player_object->leave_link ($map, $x, $y)
2466
2467Moves the player out of the special C<{link}> map onto the specified
2468map. If the map is not valid (or omitted), the player will be moved back
2469to the location he/she was before the call to C<enter_link>, or, if that
2470fails, to the emergency map position.
2471
2472Might block.
2473
2474=cut
2475
2476sub link_map {
2477 unless ($LINK_MAP) {
2478 $LINK_MAP = cf::map::find "{link}"
2479 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2480 $LINK_MAP->load;
2481 }
2482
2483 $LINK_MAP
2484}
2485
2486sub cf::object::player::enter_link {
2487 my ($self) = @_;
2488
2489 $self->deactivate_recursive;
2490
2491 return if UNIVERSAL::isa $self->map, "ext::map_link";
2492
2493 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2494 if $self->map && $self->map->{path} ne "{link}";
2495
2496 $self->enter_map ($LINK_MAP || link_map, 10, 10);
2497}
2498
2499sub cf::object::player::leave_link {
2500 my ($self, $map, $x, $y) = @_;
2501
2502 return unless $self->contr->active;
2503
2504 my $link_pos = delete $self->{_link_pos};
2505
2506 unless ($map) {
2507 # restore original map position
2508 ($map, $x, $y) = @{ $link_pos || [] };
2509 $map = cf::map::find $map;
2510
2511 unless ($map) {
2512 ($map, $x, $y) = @$EMERGENCY_POSITION;
2513 $map = cf::map::find $map
2514 or die "FATAL: cannot load emergency map\n";
2515 }
2516 }
2517
2518 ($x, $y) = (-1, -1)
2519 unless (defined $x) && (defined $y);
2520
2521 # use -1 or undef as default coordinates, not 0, 0
2522 ($x, $y) = ($map->enter_x, $map->enter_y)
2523 if $x <=0 && $y <= 0;
2524
2525 $map->load;
2526 $map->load_neighbours;
2527
2528 return unless $self->contr->active;
2529 $self->flag (cf::FLAG_DEBUG, 0);#d# temp
2530 $self->activate_recursive;
2531
2532 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2533 $self->enter_map ($map, $x, $y);
2534}
2535
2536=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2537
2538Moves the player to the given map-path and coordinates by first freezing
2539her, loading and preparing them map, calling the provided $check callback
2540that has to return the map if sucecssful, and then unfreezes the player on
2541the new (success) or old (failed) map position. In either case, $done will
2542be called at the end of this process.
2543
2544Note that $check will be called with a potentially non-loaded map, so if
2545it needs a loaded map it has to call C<< ->load >>.
2546
2547=cut
2548
2549our $GOTOGEN;
2550
2551sub cf::object::player::goto {
2552 my ($self, $path, $x, $y, $check, $done) = @_;
2553
2554 # do generation counting so two concurrent goto's will be executed in-order
2555 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2556
2557 $self->enter_link;
2558
2559 (async {
2560 $Coro::current->{desc} = "player::goto $path $x $y";
2561
2562 # *tag paths override both path and x|y
2563 if ($path =~ /^\*(.*)$/) {
2564 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2565 my $ob = $obs[rand @obs];
2566
2567 # see if we actually can go there
2568 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2569 $ob = $obs[rand @obs];
2570 } else {
2571 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2572 }
2573 # else put us there anyways for now #d#
2574
2575 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2576 } else {
2577 ($path, $x, $y) = (undef, undef, undef);
2578 }
2579 }
2580
2581 my $map = eval {
2582 my $map = defined $path ? cf::map::find $path : undef;
2583
2584 if ($map) {
2585 $map = $map->customise_for ($self);
2586 $map = $check->($map) if $check && $map;
2587 } else {
2588 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2589 }
2590
2591 $map
2592 };
2593
2594 if ($@) {
2595 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2596 LOG llevError | logBacktrace, Carp::longmess $@;
2597 }
2598
2599 if ($gen == $self->{_goto_generation}) {
2600 delete $self->{_goto_generation};
2601 $self->leave_link ($map, $x, $y);
2602 }
2603
2604 $done->() if $done;
2605 })->prio (1);
2606}
2607
2608=item $player_object->enter_exit ($exit_object)
2609
2610=cut
2611
2612sub parse_random_map_params {
2613 my ($spec) = @_;
2614
2615 my $rmp = { # defaults
2616 xsize => (cf::rndm 15, 40),
2617 ysize => (cf::rndm 15, 40),
2618 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2619 #layout => string,
2620 };
2621
2622 for (split /\n/, $spec) {
2623 my ($k, $v) = split /\s+/, $_, 2;
2624
2625 $rmp->{lc $k} = $v if (length $k) && (length $v);
2626 }
2627
2628 $rmp
2629}
2630
2631sub prepare_random_map {
2632 my ($exit) = @_;
2633
2634 # all this does is basically replace the /! path by
2635 # a new random map path (?random/...) with a seed
2636 # that depends on the exit object
2637
2638 my $rmp = parse_random_map_params $exit->msg;
2639
2640 if ($exit->map) {
2641 $rmp->{region} = $exit->region->name;
2642 $rmp->{origin_map} = $exit->map->path;
2643 $rmp->{origin_x} = $exit->x;
2644 $rmp->{origin_y} = $exit->y;
2645
2646 $exit->map->touch;
2647 }
2648
2649 $rmp->{random_seed} ||= $exit->random_seed;
2650
2651 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2652 my $md5 = Digest::MD5::md5_hex $data;
2653 my $meta = "$RANDOMDIR/$md5.meta";
2654
2655 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2656 aio_write $fh, 0, (length $data), $data, 0;
2657 undef $fh;
2658 aio_rename "$meta~", $meta;
2659
2660 my $slaying = "?random/$md5";
2661
2662 if ($exit->valid) {
2663 $exit->slaying ("?random/$md5");
2664 $exit->msg (undef);
2665 }
2666 }
2667}
2668
2669sub cf::object::player::enter_exit {
2670 my ($self, $exit) = @_;
2671
2672 return unless $self->type == cf::PLAYER;
2673
2674 $self->enter_link;
2675
2676 (async {
2677 $Coro::current->{desc} = "enter_exit";
2678
2679 unless (eval {
2680 $self->deactivate_recursive; # just to be sure
2681
2682 # random map handling
2683 {
2684 my $guard = cf::lock_acquire "exit_prepare:$exit";
2685
2686 prepare_random_map $exit
2687 if $exit->slaying eq "/!";
2688 }
2689
2690 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2691 my $x = $exit->stats->hp;
2692 my $y = $exit->stats->sp;
2693
2694 $self->goto ($map, $x, $y);
2695
2696 # if exit is damned, update players death & WoR home-position
2697 $self->contr->savebed ($map, $x, $y)
2698 if $exit->flag (cf::FLAG_DAMNED);
2699
2700 1
2701 }) {
2702 $self->message ("Something went wrong deep within the deliantra server. "
2703 . "I'll try to bring you back to the map you were before. "
2704 . "Please report this to the dungeon master!",
2705 cf::NDI_UNIQUE | cf::NDI_RED);
2706
2707 warn "ERROR in enter_exit: $@";
2708 $self->leave_link;
2709 }
2710 })->prio (1);
2711}
2712
2713=head3 cf::client
2714
2715=over 4
2716
2717=item $client->send_drawinfo ($text, $flags)
2718
2719Sends a drawinfo packet to the client. Circumvents output buffering so
2720should not be used under normal circumstances.
2721
2722=cut
2723
2724sub cf::client::send_drawinfo {
2725 my ($self, $text, $flags) = @_;
2726
2727 utf8::encode $text;
2728 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2729}
2730
2731=item $client->send_msg ($channel, $msg, $color, [extra...])
2732
2733Send a drawinfo or msg packet to the client, formatting the msg for the
2734client if neccessary. C<$type> should be a string identifying the type of
2735the message, with C<log> being the default. If C<$color> is negative, suppress
2736the message unless the client supports the msg packet.
2737
2738=cut
2739
2740# non-persistent channels (usually the info channel)
2741our %CHANNEL = (
2742 "c/identify" => {
2743 id => "infobox",
2744 title => "Identify",
2745 reply => undef,
2746 tooltip => "Items recently identified",
2747 },
2748 "c/examine" => {
2749 id => "infobox",
2750 title => "Examine",
2751 reply => undef,
2752 tooltip => "Signs and other items you examined",
2753 },
2754 "c/book" => {
2755 id => "infobox",
2756 title => "Book",
2757 reply => undef,
2758 tooltip => "The contents of a note or book",
2759 },
2760 "c/lookat" => {
2761 id => "infobox",
2762 title => "Look",
2763 reply => undef,
2764 tooltip => "What you saw there",
2765 },
2766 "c/who" => {
2767 id => "infobox",
2768 title => "Players",
2769 reply => undef,
2770 tooltip => "Shows players who are currently online",
2771 },
2772 "c/body" => {
2773 id => "infobox",
2774 title => "Body Parts",
2775 reply => undef,
2776 tooltip => "Shows which body parts you posess and are available",
2777 },
2778 "c/statistics" => {
2779 id => "infobox",
2780 title => "Statistics",
2781 reply => undef,
2782 tooltip => "Shows your primary statistics",
2783 },
2784 "c/skills" => {
2785 id => "infobox",
2786 title => "Skills",
2787 reply => undef,
2788 tooltip => "Shows your experience per skill and item power",
2789 },
2790 "c/resistances" => {
2791 id => "infobox",
2792 title => "Resistances",
2793 reply => undef,
2794 tooltip => "Shows your resistances",
2795 },
2796 "c/pets" => {
2797 id => "infobox",
2798 title => "Pets",
2799 reply => undef,
2800 tooltip => "Shows information abotu your pets/a specific pet",
2801 },
2802 "c/uptime" => {
2803 id => "infobox",
2804 title => "Uptime",
2805 reply => undef,
2806 tooltip => "How long the server has been running since last restart",
2807 },
2808 "c/mapinfo" => {
2809 id => "infobox",
2810 title => "Map Info",
2811 reply => undef,
2812 tooltip => "Information related to the maps",
2813 },
2814 "c/party" => {
2815 id => "party",
2816 title => "Party",
2817 reply => "gsay ",
2818 tooltip => "Messages and chat related to your party",
2819 },
2820 "c/death" => {
2821 id => "death",
2822 title => "Death",
2823 reply => undef,
2824 tooltip => "Reason for and more info about your most recent death",
2825 },
2826 "c/say" => $SAY_CHANNEL,
2827 "c/chat" => $CHAT_CHANNEL,
2828);
2829
2830sub cf::client::send_msg {
2831 my ($self, $channel, $msg, $color, @extra) = @_;
2832
2833 $msg = $self->pl->expand_cfpod ($msg)
2834 unless $color & cf::NDI_VERBATIM;
2835
2836 $color &= cf::NDI_CLIENT_MASK; # just in case...
2837
2838 # check predefined channels, for the benefit of C
2839 if ($CHANNEL{$channel}) {
2840 $channel = $CHANNEL{$channel};
2841
2842 $self->ext_msg (channel_info => $channel);
2843 $channel = $channel->{id};
2844
2845 } elsif (ref $channel) {
2846 # send meta info to client, if not yet sent
2847 unless (exists $self->{channel}{$channel->{id}}) {
2848 $self->{channel}{$channel->{id}} = $channel;
2849 $self->ext_msg (channel_info => $channel);
2850 }
2851
2852 $channel = $channel->{id};
2853 }
2854
2855 return unless @extra || length $msg;
2856
2857 # default colour, mask it out
2858 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2859 if $color & cf::NDI_DEF;
2860
2861 my $pkt = "msg "
2862 . $self->{json_coder}->encode (
2863 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
2864 );
2865
2866 # try lzf for large packets
2867 $pkt = "lzf " . Compress::LZF::compress $pkt
2868 if 1024 <= length $pkt and $self->{can_lzf};
2869
2870 # split very large packets
2871 if (8192 < length $pkt and $self->{can_lzf}) {
2872 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
2873 $pkt = "frag";
2874 }
2875
2876 $self->send_packet ($pkt);
2877}
2878
2879=item $client->ext_msg ($type, @msg)
2880
2881Sends an ext event to the client.
2882
2883=cut
2884
2885sub cf::client::ext_msg($$@) {
2886 my ($self, $type, @msg) = @_;
2887
2888 if ($self->extcmd == 2) {
2889 $self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2890 } elsif ($self->extcmd == 1) { # TODO: remove
2891 push @msg, msgtype => "event_$type";
2892 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2893 }
2894}
2895
2896=item $client->ext_reply ($msgid, @msg)
2897
2898Sends an ext reply to the client.
2899
2900=cut
2901
2902sub cf::client::ext_reply($$@) {
2903 my ($self, $id, @msg) = @_;
2904
2905 if ($self->extcmd == 2) {
2906 $self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2907 } elsif ($self->extcmd == 1) {
2908 #TODO: version 1, remove
2909 unshift @msg, msgtype => "reply", msgid => $id;
2910 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2911 }
2912}
2913
2914=item $success = $client->query ($flags, "text", \&cb)
2915
2916Queues a query to the client, calling the given callback with
2917the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2918C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2919
2920Queries can fail, so check the return code. Or don't, as queries will
2921become reliable at some point in the future.
2922
2923=cut
2924
2925sub cf::client::query {
2926 my ($self, $flags, $text, $cb) = @_;
2927
2928 return unless $self->state == ST_PLAYING
2929 || $self->state == ST_SETUP
2930 || $self->state == ST_CUSTOM;
2931
2932 $self->state (ST_CUSTOM);
2933
2934 utf8::encode $text;
2935 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2936
2937 $self->send_packet ($self->{query_queue}[0][0])
2938 if @{ $self->{query_queue} } == 1;
2939
2940 1
2941}
2942
2943cf::client->attach (
2944 on_connect => sub {
2945 my ($ns) = @_;
2946
2947 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2948 },
2949 on_reply => sub {
2950 my ($ns, $msg) = @_;
2951
2952 # this weird shuffling is so that direct followup queries
2953 # get handled first
2954 my $queue = delete $ns->{query_queue}
2955 or return; # be conservative, not sure how that can happen, but we saw a crash here
2956
2957 (shift @$queue)->[1]->($msg);
2958 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2959
2960 push @{ $ns->{query_queue} }, @$queue;
2961
2962 if (@{ $ns->{query_queue} } == @$queue) {
2963 if (@$queue) {
2964 $ns->send_packet ($ns->{query_queue}[0][0]);
2965 } else {
2966 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2967 }
2968 }
2969 },
2970 on_exticmd => sub {
2971 my ($ns, $buf) = @_;
2972
2973 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2974
2975 if (ref $msg) {
2976 my ($type, $reply, @payload) =
2977 "ARRAY" eq ref $msg
2978 ? @$msg
2979 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
2980
2981 my @reply;
2982
2983 if (my $cb = $EXTICMD{$type}) {
2984 @reply = $cb->($ns, @payload);
2985 }
2986
2987 $ns->ext_reply ($reply, @reply)
2988 if $reply;
2989
2990 } else {
2991 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2992 }
2993
2994 cf::override;
2995 },
2996);
2997
2998=item $client->async (\&cb)
2999
3000Create a new coroutine, running the specified callback. The coroutine will
3001be automatically cancelled when the client gets destroyed (e.g. on logout,
3002or loss of connection).
3003
3004=cut
3005
3006sub cf::client::async {
3007 my ($self, $cb) = @_;
3008
3009 my $coro = &Coro::async ($cb);
3010
3011 $coro->on_destroy (sub {
3012 delete $self->{_coro}{$coro+0};
3013 });
3014
3015 $self->{_coro}{$coro+0} = $coro;
3016
3017 $coro
3018}
3019
3020cf::client->attach (
3021 on_destroy => sub {
3022 my ($ns) = @_;
3023
3024 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
3025 },
3026);
3027
3028=back
3029
3030
3031=head2 SAFE SCRIPTING
3032
3033Functions that provide a safe environment to compile and execute
3034snippets of perl code without them endangering the safety of the server
3035itself. Looping constructs, I/O operators and other built-in functionality
3036is not available in the safe scripting environment, and the number of
3037functions and methods that can be called is greatly reduced.
3038
3039=cut
3040
3041our $safe = new Safe "safe";
3042our $safe_hole = new Safe::Hole;
3043
3044$SIG{FPE} = 'IGNORE';
3045
3046$safe->permit_only (Opcode::opset qw(
3047 :base_core :base_mem :base_orig :base_math
3048 grepstart grepwhile mapstart mapwhile
3049 sort time
3050));
3051
3052# here we export the classes and methods available to script code
3053
3054=pod
3055
3056The following functions and methods are available within a safe environment:
3057
3058 cf::object
3059 contr pay_amount pay_player map x y force_find force_add destroy
3060 insert remove name archname title slaying race decrease split
3061 value
3062
3063 cf::object::player
3064 player
3065
3066 cf::player
3067 peaceful
3068
3069 cf::map
3070 trigger
3071
3072=cut
3073
3074for (
3075 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3076 insert remove inv nrof name archname title slaying race
3077 decrease split destroy change_exp value msg lore send_msg)],
3078 ["cf::object::player" => qw(player)],
3079 ["cf::player" => qw(peaceful send_msg)],
3080 ["cf::map" => qw(trigger)],
3081) {
30 no strict 'refs'; 3082 no strict 'refs';
3083 my ($pkg, @funs) = @$_;
3084 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
3085 for @funs;
3086}
31 3087
32 for my $prop (keys %PROP_TYPE) { 3088=over 4
33 $prop =~ /^\Q$prefix\E_(.*$)/ or next;
34 my $sub = lc $1;
35 3089
36 my $type = $PROP_TYPE{$prop}; 3090=item @retval = safe_eval $code, [var => value, ...]
37 my $idx = $PROP_IDX {$prop};
38 3091
39 *{"$class\::get_$sub"} = *{"$class\::$sub"} = sub { 3092Compiled and executes the given perl code snippet. additional var/value
40 $_[0]->get_property ($type, $idx) 3093pairs result in temporary local (my) scalar variables of the given name
3094that are available in the code snippet. Example:
3095
3096 my $five = safe_eval '$first + $second', first => 1, second => 4;
3097
3098=cut
3099
3100sub safe_eval($;@) {
3101 my ($code, %vars) = @_;
3102
3103 my $qcode = $code;
3104 $qcode =~ s/"/‟/g; # not allowed in #line filenames
3105 $qcode =~ s/\n/\\n/g;
3106
3107 %vars = (_dummy => 0) unless %vars;
3108
3109 local $_;
3110 local @safe::cf::_safe_eval_args = values %vars;
3111
3112 my $eval =
3113 "do {\n"
3114 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
3115 . "#line 0 \"{$qcode}\"\n"
3116 . $code
3117 . "\n}"
3118 ;
3119
3120 sub_generation_inc;
3121 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
3122 sub_generation_inc;
3123
3124 if ($@) {
3125 warn "$@";
3126 warn "while executing safe code '$code'\n";
3127 warn "with arguments " . (join " ", %vars) . "\n";
3128 }
3129
3130 wantarray ? @res : $res[0]
3131}
3132
3133=item cf::register_script_function $function => $cb
3134
3135Register a function that can be called from within map/npc scripts. The
3136function should be reasonably secure and should be put into a package name
3137like the extension.
3138
3139Example: register a function that gets called whenever a map script calls
3140C<rent::overview>, as used by the C<rent> extension.
3141
3142 cf::register_script_function "rent::overview" => sub {
3143 ...
3144 };
3145
3146=cut
3147
3148sub register_script_function {
3149 my ($fun, $cb) = @_;
3150
3151 no strict 'refs';
3152 *{"safe::$fun"} = $safe_hole->wrap ($cb);
3153}
3154
3155=back
3156
3157=cut
3158
3159#############################################################################
3160# the server's init and main functions
3161
3162sub load_facedata($) {
3163 my ($path) = @_;
3164
3165 # HACK to clear player env face cache, we need some signal framework
3166 # for this (global event?)
3167 %ext::player_env::MUSIC_FACE_CACHE = ();
3168
3169 my $enc = JSON::XS->new->utf8->canonical->relaxed;
3170
3171 warn "loading facedata from $path\n";
3172
3173 my $facedata;
3174 0 < aio_load $path, $facedata
3175 or die "$path: $!";
3176
3177 $facedata = Coro::Storable::thaw $facedata;
3178
3179 $facedata->{version} == 2
3180 or cf::cleanup "$path: version mismatch, cannot proceed.";
3181
3182 # patch in the exptable
3183 $facedata->{resource}{"res/exp_table"} = {
3184 type => FT_RSRC,
3185 data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
3186 };
3187 cf::cede_to_tick;
3188
3189 {
3190 my $faces = $facedata->{faceinfo};
3191
3192 while (my ($face, $info) = each %$faces) {
3193 my $idx = (cf::face::find $face) || cf::face::alloc $face;
3194
3195 cf::face::set_visibility $idx, $info->{visibility};
3196 cf::face::set_magicmap $idx, $info->{magicmap};
3197 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
3198 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
3199
3200 cf::cede_to_tick;
3201 }
3202
3203 while (my ($face, $info) = each %$faces) {
3204 next unless $info->{smooth};
3205
3206 my $idx = cf::face::find $face
3207 or next;
3208
3209 if (my $smooth = cf::face::find $info->{smooth}) {
3210 cf::face::set_smooth $idx, $smooth;
3211 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3212 } else {
3213 warn "smooth face '$info->{smooth}' not found for face '$face'";
3214 }
3215
3216 cf::cede_to_tick;
3217 }
3218 }
3219
3220 {
3221 my $anims = $facedata->{animinfo};
3222
3223 while (my ($anim, $info) = each %$anims) {
3224 cf::anim::set $anim, $info->{frames}, $info->{facings};
3225 cf::cede_to_tick;
3226 }
3227
3228 cf::anim::invalidate_all; # d'oh
3229 }
3230
3231 {
3232 # TODO: for gcfclient pleasure, we should give resources
3233 # that gcfclient doesn't grok a >10000 face index.
3234 my $res = $facedata->{resource};
3235
3236 while (my ($name, $info) = each %$res) {
3237 if (defined $info->{type}) {
3238 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3239 my $data;
3240
3241 if ($info->{type} & 1) {
3242 # prepend meta info
3243
3244 my $meta = $enc->encode ({
3245 name => $name,
3246 %{ $info->{meta} || {} },
3247 });
3248
3249 $data = pack "(w/a*)*", $meta, $info->{data};
3250 } else {
3251 $data = $info->{data};
3252 }
3253
3254 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
3255 cf::face::set_type $idx, $info->{type};
3256 } else {
3257 $RESOURCE{$name} = $info;
3258 }
3259
3260 cf::cede_to_tick;
3261 }
3262 }
3263
3264 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3265
3266 1
3267}
3268
3269cf::global->attach (on_resource_update => sub {
3270 if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
3271 $soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
3272
3273 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3274 my $sound = $soundconf->{compat}[$_]
3275 or next;
3276
3277 my $face = cf::face::find "sound/$sound->[1]";
3278 cf::sound::set $sound->[0] => $face;
3279 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3280 }
3281
3282 while (my ($k, $v) = each %{$soundconf->{event}}) {
3283 my $face = cf::face::find "sound/$v";
3284 cf::sound::set $k => $face;
3285 }
3286 }
3287});
3288
3289register_exticmd fx_want => sub {
3290 my ($ns, $want) = @_;
3291
3292 while (my ($k, $v) = each %$want) {
3293 $ns->fx_want ($k, $v);
3294 }
3295};
3296
3297sub load_resource_file($) {
3298 my $guard = lock_acquire "load_resource_file";
3299
3300 my $status = load_resource_file_ $_[0];
3301 get_slot 0.1, 100;
3302 cf::arch::commit_load;
3303
3304 $status
3305}
3306
3307sub reload_regions {
3308 # HACK to clear player env face cache, we need some signal framework
3309 # for this (global event?)
3310 %ext::player_env::MUSIC_FACE_CACHE = ();
3311
3312 load_resource_file "$MAPDIR/regions"
3313 or die "unable to load regions file\n";
3314
3315 for (cf::region::list) {
3316 $_->{match} = qr/$_->{match}/
3317 if exists $_->{match};
3318 }
3319}
3320
3321sub reload_facedata {
3322 load_facedata "$DATADIR/facedata"
3323 or die "unable to load facedata\n";
3324}
3325
3326sub reload_archetypes {
3327 load_resource_file "$DATADIR/archetypes"
3328 or die "unable to load archetypes\n";
3329}
3330
3331sub reload_treasures {
3332 load_resource_file "$DATADIR/treasures"
3333 or die "unable to load treasurelists\n";
3334}
3335
3336sub reload_resources {
3337 warn "reloading resource files...\n";
3338
3339 reload_facedata;
3340 reload_archetypes;
3341 reload_regions;
3342 reload_treasures;
3343
3344 warn "finished reloading resource files\n";
3345}
3346
3347sub reload_config {
3348 open my $fh, "<:utf8", "$CONFDIR/config"
3349 or return;
3350
3351 local $/;
3352 *CFG = YAML::Load <$fh>;
3353
3354 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
3355
3356 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3357 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3358
3359 if (exists $CFG{mlockall}) {
3360 eval {
3361 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3362 and die "WARNING: m(un)lockall failed: $!\n";
41 }; 3363 };
3364 warn $@ if $@;
3365 }
3366}
42 3367
43 *{"$class\::set_$sub"} = sub { 3368sub pidfile() {
44 $_[0]->set_property ($type, $idx, $_[1]); 3369 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3370 or die "$PIDFILE: $!";
3371 flock $fh, &Fcntl::LOCK_EX
3372 or die "$PIDFILE: flock: $!";
3373 $fh
3374}
3375
3376# make sure only one server instance is running at any one time
3377sub atomic {
3378 my $fh = pidfile;
3379
3380 my $pid = <$fh>;
3381 kill 9, $pid if $pid > 0;
3382
3383 seek $fh, 0, 0;
3384 print $fh $$;
3385}
3386
3387sub main {
3388 cf::init_globals; # initialise logging
3389
3390 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3391 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3392 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3393 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3394
3395 cf::init_experience;
3396 cf::init_anim;
3397 cf::init_attackmess;
3398 cf::init_dynamic;
3399
3400 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3401
3402 # we must not ever block the main coroutine
3403 local $Coro::idle = sub {
3404 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3405 (async {
3406 $Coro::current->{desc} = "IDLE BUG HANDLER";
3407 EV::loop EV::LOOP_ONESHOT;
3408 })->prio (Coro::PRIO_MAX);
3409 };
3410
3411 evthread_start IO::AIO::poll_fileno;
3412
3413 cf::sync_job {
3414 reload_resources;
3415 reload_config;
3416 db_init;
3417
3418 cf::load_settings;
3419 cf::load_materials;
3420 cf::init_uuid;
3421 cf::init_signals;
3422 cf::init_commands;
3423 cf::init_skills;
3424
3425 cf::init_beforeplay;
3426
3427 atomic;
3428
3429 load_extensions;
3430
3431 utime time, time, $RUNTIMEFILE;
3432
3433 # no (long-running) fork's whatsoever before this point(!)
3434 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3435
3436 (pop @POST_INIT)->(0) while @POST_INIT;
3437 };
3438
3439 EV::loop;
3440}
3441
3442#############################################################################
3443# initialisation and cleanup
3444
3445# install some emergency cleanup handlers
3446BEGIN {
3447 our %SIGWATCHER = ();
3448 for my $signal (qw(INT HUP TERM)) {
3449 $SIGWATCHER{$signal} = EV::signal $signal, sub {
3450 cf::cleanup "SIG$signal";
45 }; 3451 };
46 } 3452 }
47} 3453}
48 3454
49# auto-generate most of the API 3455sub write_runtime_sync {
3456 # first touch the runtime file to show we are still running:
3457 # the fsync below can take a very very long time.
50 3458
51prop_gen OBJECT_PROP => "cf::object"; 3459 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
52# CFAPI_OBJECT_ANIMATION?
53prop_gen PLAYER_PROP => "cf::object::player";
54 3460
55prop_gen MAP_PROP => "cf::map"; 3461 my $guard = cf::lock_acquire "write_runtime";
56prop_gen ARCH_PROP => "cf::arch";
57 3462
58# guessed hierarchies 3463 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
59
60@cf::object::player::ISA = 'cf::object';
61@cf::object::map::ISA = 'cf::object';
62
63my @exts;
64my @hook;
65my %command;
66
67sub inject_event {
68 my ($data) = @_;
69
70 my $cb = $hook[$data->{event_code}]
71 or return; 3464 or return;
72 3465
73 $_->($data) for values %$cb; 3466 my $value = $cf::RUNTIME + 90 + 10;
3467 # 10 is the runtime save interval, for a monotonic clock
3468 # 60 allows for the watchdog to kill the server.
74 3469
75 () 3470 (aio_write $fh, 0, (length $value), $value, 0) <= 0
76} 3471 and return;
77 3472
78sub inject_command { 3473 # always fsync - this file is important
79 my ($name, $obj, $params) = @_; 3474 aio_fsync $fh
3475 and return;
80 3476
81 for my $cmd (@{ $command{$name} }) { 3477 # touch it again to show we are up-to-date
82 $cmd->[1]->($obj, $params); 3478 aio_utime $fh, undef, undef;
83 }
84 3479
3480 close $fh
3481 or return;
3482
3483 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3484 and return;
3485
3486 warn "runtime file written.\n";
3487
85 -1 3488 1
86} 3489}
87 3490
88sub register_command { 3491our $uuid_lock;
89 my ($name, $time, $cb) = @_; 3492our $uuid_skip;
90 3493
91 my $caller = caller; 3494sub write_uuid_sync($) {
3495 $uuid_skip ||= $_[0];
92 3496
93 push @{ $command{$name} }, [$time, $cb, $caller]; 3497 return if $uuid_lock;
94 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; 3498 local $uuid_lock = 1;
95}
96 3499
97sub load_extension { 3500 my $uuid = "$LOCALDIR/uuid";
98 my ($path) = @_;
99 3501
100 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 3502 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
101 my $pkg = $1; 3503 or return;
102 $pkg =~ s/[^[:word:]]/_/g;
103 $pkg = "cf::ext::$pkg";
104 3504
105 warn "loading '$path' into '$pkg'\n"; 3505 my $value = uuid_seq uuid_cur;
106 3506
107 open my $fh, "<:utf8", $path 3507 unless ($value) {
108 or die "$path: $!"; 3508 warn "cowardly refusing to write zero uuid value!\n";
3509 return;
3510 }
109 3511
110 my $source = 3512 my $value = uuid_str $value + $uuid_skip;
111 "package $pkg; use strict; use utf8;\n" 3513 $uuid_skip = 0;
112 . "#line 1 \"$path\"\n{\n"
113 . (do { local $/; <$fh> })
114 . "\n};\n1";
115 3514
116 eval $source 3515 (aio_write $fh, 0, (length $value), $value, 0) <= 0
117 or die "$path: $@"; 3516 and return;
118 3517
119 push @exts, $pkg; 3518 # always fsync - this file is important
3519 aio_fsync $fh
3520 and return;
120 3521
121 no strict 'refs'; 3522 close $fh
3523 or return;
122 3524
123# @{"$pkg\::ISA"} = cf::ext::; 3525 aio_rename "$uuid~", $uuid
3526 and return;
124 3527
125 for my $idx (0 .. $#EVENT) { 3528 warn "uuid file written ($value).\n";
126 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { 3529
127 warn "registering $EVENT[$idx] hook\n"; 3530 1
128 $hook[$idx]{$pkg} = $ref; 3531
3532}
3533
3534sub write_uuid($$) {
3535 my ($skip, $sync) = @_;
3536
3537 $sync ? write_uuid_sync $skip
3538 : async { write_uuid_sync $skip };
3539}
3540
3541sub emergency_save() {
3542 my $freeze_guard = cf::freeze_mainloop;
3543
3544 warn "emergency_perl_save: enter\n";
3545
3546 cf::sync_job {
3547 # this is a trade-off: we want to be very quick here, so
3548 # save all maps without fsync, and later call a global sync
3549 # (which in turn might be very very slow)
3550 local $USE_FSYNC = 0;
3551
3552 # use a peculiar iteration method to avoid tripping on perl
3553 # refcount bugs in for. also avoids problems with players
3554 # and maps saved/destroyed asynchronously.
3555 warn "emergency_perl_save: begin player save\n";
3556 for my $login (keys %cf::PLAYER) {
3557 my $pl = $cf::PLAYER{$login} or next;
3558 $pl->valid or next;
3559 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3560 $pl->save;
129 } 3561 }
3562 warn "emergency_perl_save: end player save\n";
3563
3564 warn "emergency_perl_save: begin map save\n";
3565 for my $path (keys %cf::MAP) {
3566 my $map = $cf::MAP{$path} or next;
3567 $map->valid or next;
3568 $map->save;
3569 }
3570 warn "emergency_perl_save: end map save\n";
3571
3572 warn "emergency_perl_save: begin database checkpoint\n";
3573 BDB::db_env_txn_checkpoint $DB_ENV;
3574 warn "emergency_perl_save: end database checkpoint\n";
3575
3576 warn "emergency_perl_save: begin write uuid\n";
3577 write_uuid_sync 1;
3578 warn "emergency_perl_save: end write uuid\n";
130 } 3579 };
131}
132 3580
133sub unload_extension { 3581 warn "emergency_perl_save: starting sync()\n";
134 my ($pkg) = @_; 3582 IO::AIO::aio_sync sub {
135 3583 warn "emergency_perl_save: finished sync()\n";
136 warn "removing extension $pkg\n";
137
138 # remove hooks
139 for my $idx (0 .. $#EVENT) {
140 delete $hook[$idx]{$pkg};
141 } 3584 };
142 3585
143 # remove commands 3586 warn "emergency_perl_save: leave\n";
3587}
3588
3589sub post_cleanup {
3590 my ($make_core) = @_;
3591
3592 warn Carp::longmess "post_cleanup backtrace"
3593 if $make_core;
3594
3595 my $fh = pidfile;
3596 unlink $PIDFILE if <$fh> == $$;
3597}
3598
3599# a safer delete_package, copied from Symbol
3600sub clear_package($) {
3601 my $pkg = shift;
3602
3603 # expand to full symbol table name if needed
3604 unless ($pkg =~ /^main::.*::$/) {
3605 $pkg = "main$pkg" if $pkg =~ /^::/;
3606 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3607 $pkg .= '::' unless $pkg =~ /::$/;
3608 }
3609
3610 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3611 my $stem_symtab = *{$stem}{HASH};
3612
3613 defined $stem_symtab and exists $stem_symtab->{$leaf}
3614 or return;
3615
3616 # clear all symbols
3617 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
144 for my $name (keys %command) { 3618 for my $name (keys %$leaf_symtab) {
145 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 3619 _gv_clear *{"$pkg$name"};
3620# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3621 }
3622 warn "cleared package $pkg\n";#d#
3623}
146 3624
147 if (@cb) { 3625sub do_reload_perl() {
148 $command{$name} = \@cb; 3626 # can/must only be called in main
149 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb; 3627 if ($Coro::current != $Coro::main) {
150 } else { 3628 warn "can only reload from main coroutine";
151 delete $command{$name}; 3629 return;
152 delete $COMMAND{"$name\000"}; 3630 }
3631
3632 return if $RELOAD++;
3633
3634 my $t1 = EV::time;
3635
3636 while ($RELOAD) {
3637 warn "reloading...";
3638
3639 warn "entering sync_job";
3640
3641 cf::sync_job {
3642 cf::write_runtime_sync; # external watchdog should not bark
3643 cf::emergency_save;
3644 cf::write_runtime_sync; # external watchdog should not bark
3645
3646 warn "syncing database to disk";
3647 BDB::db_env_txn_checkpoint $DB_ENV;
3648
3649 # if anything goes wrong in here, we should simply crash as we already saved
3650
3651 warn "flushing outstanding aio requests";
3652 while (IO::AIO::nreqs || BDB::nreqs) {
3653 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
153 } 3654 }
154 }
155 3655
156 Symbol::delete_package $pkg; 3656 warn "cancelling all extension coros";
157} 3657 $_->cancel for values %EXT_CORO;
3658 %EXT_CORO = ();
158 3659
159sub load_extensions { 3660 warn "removing commands";
160 my $LIBDIR = maps_directory "perl"; 3661 %COMMAND = ();
161 3662
162 for my $ext (<$LIBDIR/*.ext>) { 3663 warn "removing ext/exti commands";
163 next unless -r $ext; 3664 %EXTCMD = ();
164 eval { 3665 %EXTICMD = ();
3666
3667 warn "unloading/nuking all extensions";
3668 for my $pkg (@EXTS) {
3669 warn "... unloading $pkg";
3670
3671 if (my $cb = $pkg->can ("unload")) {
3672 eval {
3673 $cb->($pkg);
3674 1
3675 } or warn "$pkg unloaded, but with errors: $@";
3676 }
3677
3678 warn "... clearing $pkg";
3679 clear_package $pkg;
3680 }
3681
3682 warn "unloading all perl modules loaded from $LIBDIR";
3683 while (my ($k, $v) = each %INC) {
3684 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3685
3686 warn "... unloading $k";
3687 delete $INC{$k};
3688
3689 $k =~ s/\.pm$//;
3690 $k =~ s/\//::/g;
3691
3692 if (my $cb = $k->can ("unload_module")) {
3693 $cb->();
3694 }
3695
3696 clear_package $k;
3697 }
3698
3699 warn "getting rid of safe::, as good as possible";
3700 clear_package "safe::$_"
3701 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3702
3703 warn "unloading cf.pm \"a bit\"";
3704 delete $INC{"cf.pm"};
3705 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3706
3707 # don't, removes xs symbols, too,
3708 # and global variables created in xs
3709 #clear_package __PACKAGE__;
3710
3711 warn "unload completed, starting to reload now";
3712
3713 warn "reloading cf.pm";
3714 require cf;
3715 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
3716
3717 warn "loading config and database again";
3718 cf::reload_config;
3719
3720 warn "loading extensions";
165 load_extension $ext; 3721 cf::load_extensions;
3722
3723 if ($REATTACH_ON_RELOAD) {
3724 warn "reattaching attachments to objects/players";
3725 _global_reattach; # objects, sockets
3726 warn "reattaching attachments to maps";
3727 reattach $_ for values %MAP;
3728 warn "reattaching attachments to players";
3729 reattach $_ for values %PLAYER;
3730 }
3731
3732 warn "running post_init jobs";
3733 (pop @POST_INIT)->(1) while @POST_INIT;
3734
3735 warn "leaving sync_job";
3736
166 1 3737 1
167 } or warn "$ext not loaded: $@"; 3738 } or do {
3739 warn $@;
3740 cf::cleanup "error while reloading, exiting.";
3741 };
3742
3743 warn "reloaded";
3744 --$RELOAD;
3745 }
3746
3747 $t1 = EV::time - $t1;
3748 warn "reload completed in ${t1}s\n";
3749};
3750
3751our $RELOAD_WATCHER; # used only during reload
3752
3753sub reload_perl() {
3754 # doing reload synchronously and two reloads happen back-to-back,
3755 # coro crashes during coro_state_free->destroy here.
3756
3757 $RELOAD_WATCHER ||= cf::async {
3758 Coro::AIO::aio_wait cache_extensions;
3759
3760 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3761 do_reload_perl;
3762 undef $RELOAD_WATCHER;
3763 };
168 } 3764 };
169} 3765}
170 3766
171register_command "perl-reload", 0, sub { 3767register_command "reload" => sub {
172 my ($who, $arg) = @_; 3768 my ($who, $arg) = @_;
173 3769
174 if ($who->flag (FLAG_WIZ)) { 3770 if ($who->flag (FLAG_WIZ)) {
175 $who->message ("reloading..."); 3771 $who->message ("reloading server.");
3772 async {
3773 $Coro::current->{desc} = "perl_reload";
3774 reload_perl;
3775 };
3776 }
3777};
176 3778
177 warn "reloading...\n"; 3779unshift @INC, $LIBDIR;
178 unload_extension $_ for @exts;
179 @exts = 0;
180 load_extensions;
181 warn "reloaded\n";
182 3780
183 $who->message ("reloaded"); 3781my $bug_warning = 0;
3782
3783our @WAIT_FOR_TICK;
3784our @WAIT_FOR_TICK_BEGIN;
3785
3786sub wait_for_tick {
3787 return if tick_inhibit || $Coro::current == $Coro::main;
3788
3789 my $signal = new Coro::Signal;
3790 push @WAIT_FOR_TICK, $signal;
3791 $signal->wait;
3792}
3793
3794sub wait_for_tick_begin {
3795 return if tick_inhibit || $Coro::current == $Coro::main;
3796
3797 my $signal = new Coro::Signal;
3798 push @WAIT_FOR_TICK_BEGIN, $signal;
3799 $signal->wait;
3800}
3801
3802sub tick {
3803 if ($Coro::current != $Coro::main) {
3804 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3805 unless ++$bug_warning > 10;
3806 return;
3807 }
3808
3809 cf::server_tick; # one server iteration
3810
3811 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3812 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
3813 Coro::async_pool {
3814 $Coro::current->{desc} = "runtime saver";
3815 write_runtime_sync
3816 or warn "ERROR: unable to write runtime file: $!";
3817 };
3818 }
3819
3820 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3821 $sig->send;
3822 }
3823 while (my $sig = shift @WAIT_FOR_TICK) {
3824 $sig->send;
3825 }
3826
3827 $LOAD = ($NOW - $TICK_START) / $TICK;
3828 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3829
3830 if (0) {
3831 if ($NEXT_TICK) {
3832 my $jitter = $TICK_START - $NEXT_TICK;
3833 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
3834 warn "jitter $JITTER\n";#d#
3835 }
3836 }
3837}
3838
3839{
3840 # configure BDB
3841
3842 BDB::min_parallel 8;
3843 BDB::max_poll_reqs $TICK * 0.1;
3844 $AnyEvent::BDB::WATCHER->priority (1);
3845
3846 unless ($DB_ENV) {
3847 $DB_ENV = BDB::db_env_create;
3848 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
3849 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
3850 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
3851 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
3852 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3853
3854 cf::sync_job {
3855 eval {
3856 BDB::db_env_open
3857 $DB_ENV,
3858 $BDBDIR,
3859 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3860 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3861 0666;
3862
3863 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3864 };
3865
3866 cf::cleanup "db_env_open(db): $@" if $@;
3867 };
3868 }
3869
3870 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
3871 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
3872 };
3873 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
3874 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
3875 };
3876 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
3877 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
3878 };
3879}
3880
3881{
3882 # configure IO::AIO
3883
3884 IO::AIO::min_parallel 8;
3885 IO::AIO::max_poll_time $TICK * 0.1;
3886 undef $AnyEvent::AIO::WATCHER;
3887}
3888
3889my $_log_backtrace;
3890
3891sub _log_backtrace {
3892 my ($msg, @addr) = @_;
3893
3894 $msg =~ s/\n//;
3895
3896 # limit the # of concurrent backtraces
3897 if ($_log_backtrace < 2) {
3898 ++$_log_backtrace;
3899 my $perl_bt = Carp::longmess $msg;
3900 async {
3901 $Coro::current->{desc} = "abt $msg";
3902
3903 my @bt = fork_call {
3904 @addr = map { sprintf "%x", $_ } @addr;
3905 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3906 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3907 or die "addr2line: $!";
3908
3909 my @funcs;
3910 my @res = <$fh>;
3911 chomp for @res;
3912 while (@res) {
3913 my ($func, $line) = splice @res, 0, 2, ();
3914 push @funcs, "[$func] $line";
3915 }
3916
3917 @funcs
3918 };
3919
3920 LOG llevInfo, "[ABT] $perl_bt\n";
3921 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3922 LOG llevInfo, "[ABT] $_\n" for @bt;
3923 --$_log_backtrace;
3924 };
184 } else { 3925 } else {
185 $who->message ("Intruder Alert!"); 3926 LOG llevInfo, "[ABT] $msg\n";
3927 LOG llevInfo, "[ABT] [suppressed]\n";
186 } 3928 }
187}; 3929}
188 3930
189load_extensions; 3931# load additional modules
3932require "cf/$_.pm" for @EXTRA_MODULES;
3933
3934END { cf::emergency_save }
190 3935
1911 39361
192 3937

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