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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.43 by root, Fri Aug 25 17:11:53 2006 UTC vs.
Revision 1.550 by root, Fri May 14 22:56:47 2010 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify it under
7# the terms of the Affero GNU General Public License as published by the
8# Free Software Foundation, either version 3 of the License, or (at your
9# 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 Affero GNU General Public License
17# and the GNU General Public License along with this program. If not, see
18# <http://www.gnu.org/licenses/>.
19#
20# The authors can be reached via e-mail to <support@deliantra.net>
21#
22
1package cf; 23package cf;
24
25use common::sense;
2 26
3use Symbol; 27use Symbol;
4use List::Util; 28use List::Util;
5use Storable; 29use Socket;
30use EV;
6use Opcode; 31use Opcode;
7use Safe; 32use Safe;
8use Safe::Hole; 33use Safe::Hole;
34use Storable ();
35use Carp ();
9 36
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 ();
52
53use JSON::XS 2.01 ();
54use BDB ();
55use Data::Dumper;
56use Fcntl;
57use YAML::XS ();
58use IO::AIO ();
10use Time::HiRes; 59use Time::HiRes;
11use Event; 60use Compress::LZF;
12$Event::Eval = 1; # no idea why this is required, but it is 61use Digest::MD5 ();
13 62
14use strict; 63AnyEvent::detect;
15 64
65# configure various modules to our taste
66#
67$Storable::canonical = 1; # reduce rsync transfers
68Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
69
70$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
71
72# make sure c-lzf reinitialises itself
73Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
74Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
75
76# strictly for debugging
77$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
78
79sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
80
81our @ORIG_INC;
82
16our %COMMAND = (); 83our %COMMAND = ();
84our %COMMAND_TIME = ();
85
86our @EXTS = (); # list of extension package names
87our %EXTCMD = ();
88our %EXTICMD = ();
89our %EXT_CORO = (); # coroutines bound to extensions
90our %EXT_MAP = (); # pluggable maps
91
92our $RELOAD; # number of reloads so far, non-zero while in reload
17our @EVENT; 93our @EVENT;
18our @PLUGIN_EVENT; 94our @REFLECT; # set by XS
19our %PROP_TYPE; 95our %REFLECT; # set by us
20our %PROP_IDX;
21our $LIBDIR = maps_directory "perl";
22 96
23our $TICK = MAX_TIME * 1e-6; 97our $CONFDIR = confdir;
24our $TICK_WATCHER; 98our $DATADIR = datadir;
99our $LIBDIR = "$DATADIR/ext";
100our $PODDIR = "$DATADIR/pod";
101our $MAPDIR = "$DATADIR/" . mapdir;
102our $LOCALDIR = localdir;
103our $TMPDIR = "$LOCALDIR/" . tmpdir;
104our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
105our $PLAYERDIR = "$LOCALDIR/" . playerdir;
106our $RANDOMDIR = "$LOCALDIR/random";
107our $BDBDIR = "$LOCALDIR/db";
108our $PIDFILE = "$LOCALDIR/pid";
109our $RUNTIMEFILE = "$LOCALDIR/runtime";
110
111our %RESOURCE; # unused
112
113our $OUTPUT_RATE_MIN = 3000;
114our $OUTPUT_RATE_MAX = 1000000;
115
116our $MAX_LINKS = 32; # how many chained exits to follow
117our $VERBOSE_IO = 1;
118
119our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
120our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
25our $NEXT_TICK; 121our $NEXT_TICK;
122our $USE_FSYNC = 1; # use fsync to write maps - default on
26 123
27BEGIN { 124our $BDB_DEADLOCK_WATCHER;
28 @PLUGIN_EVENT = map lc, @PLUGIN_EVENT; 125our $BDB_CHECKPOINT_WATCHER;
126our $BDB_TRICKLE_WATCHER;
127our $DB_ENV;
29 128
30 *CORE::GLOBAL::warn = sub { 129our @EXTRA_MODULES = qw(pod match mapscript incloader);
130
131our %CFG;
132
133our $UPTIME; $UPTIME ||= time;
134our $RUNTIME;
135our $NOW;
136
137our (%PLAYER, %PLAYER_LOADING); # all users
138our (%MAP, %MAP_LOADING ); # all maps
139our $LINK_MAP; # the special {link} map, which is always available
140
141# used to convert map paths into valid unix filenames by replacing / by ∕
142our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
143
144our $LOAD; # a number between 0 (idle) and 1 (too many objects)
145our $LOADAVG; # same thing, but with alpha-smoothing
146our $JITTER; # average jitter
147our $TICK_START; # for load detecting purposes
148
149our @POST_INIT;
150
151our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
152our $REALLY_UNLOOP; # never set to true, please :)
153
154binmode STDOUT;
155binmode STDERR;
156
157# read virtual server time, if available
158unless ($RUNTIME || !-e $RUNTIMEFILE) {
159 open my $fh, "<", $RUNTIMEFILE
160 or die "unable to read $RUNTIMEFILE file: $!";
161 $RUNTIME = <$fh> + 0.;
162}
163
164eval "sub TICK() { $TICK } 1" or die;
165
166mkdir $_
167 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
168
169our $EMERGENCY_POSITION;
170
171sub cf::map::normalise;
172
173sub in_main() {
174 $Coro::current == $Coro::main
175}
176
177#############################################################################
178
179%REFLECT = ();
180for (@REFLECT) {
181 my $reflect = JSON::XS::decode_json $_;
182 $REFLECT{$reflect->{class}} = $reflect;
183}
184
185# this is decidedly evil
186$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
187
188#############################################################################
189
190=head2 GLOBAL VARIABLES
191
192=over 4
193
194=item $cf::UPTIME
195
196The timestamp of the server start (so not actually an uptime).
197
198=item $cf::RUNTIME
199
200The time this server has run, starts at 0 and is increased by $cf::TICK on
201every server tick.
202
203=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
204$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
205$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
206
207Various directories - "/etc", read-only install directory, perl-library
208directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
209unique-items directory, player file directory, random maps directory and
210database environment.
211
212=item $cf::NOW
213
214The time of the last (current) server tick.
215
216=item $cf::TICK
217
218The interval between server ticks, in seconds.
219
220=item $cf::LOADAVG
221
222The current CPU load on the server (alpha-smoothed), as a value between 0
223(none) and 1 (overloaded), indicating how much time is spent on processing
224objects per tick. Healthy values are < 0.5.
225
226=item $cf::LOAD
227
228The raw value load value from the last tick.
229
230=item %cf::CFG
231
232Configuration for the server, loaded from C</etc/deliantra-server/config>, or
233from wherever your confdir points to.
234
235=item cf::wait_for_tick, cf::wait_for_tick_begin
236
237These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
238returns directly I<after> the tick processing (and consequently, can only wake one thread
239per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
240
241=cut
242
243sub wait_for_tick();
244sub wait_for_tick_begin();
245
246=item @cf::INVOKE_RESULTS
247
248This array contains the results of the last C<invoke ()> call. When
249C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
250that call.
251
252=item %cf::REFLECT
253
254Contains, for each (C++) class name, a hash reference with information
255about object members (methods, scalars, arrays and flags) and other
256metadata, which is useful for introspection.
257
258=back
259
260=cut
261
262sub error(@) { LOG llevError, join "", @_ }
263sub warn (@) { LOG llevWarn , join "", @_ }
264sub info (@) { LOG llevInfo , join "", @_ }
265sub debug(@) { LOG llevDebug, join "", @_ }
266sub trace(@) { LOG llevTrace, join "", @_ }
267
268$Coro::State::WARNHOOK = sub {
31 my $msg = join "", @_; 269 my $msg = join "", @_;
270
32 $msg .= "\n" 271 $msg .= "\n"
33 unless $msg =~ /\n$/; 272 unless $msg =~ /\n$/;
34 273
35 print STDERR "cfperl: $msg"; 274 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
36 LOG llevError, "cfperl: $msg";
37 };
38}
39 275
40my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply! 276 LOG llevWarn, $msg;
277};
41 278
42# generate property mutators 279$Coro::State::DIEHOOK = sub {
43sub prop_gen { 280 return unless $^S eq 0; # "eq", not "=="
44 my ($prefix, $class) = @_;
45 281
46 no strict 'refs'; 282 error Carp::longmess $_[0];
47 283
48 for my $prop (keys %PROP_TYPE) { 284 if (in_main) {#d#
49 $prop =~ /^\Q$prefix\E_(.*$)/ or next; 285 error "DIEHOOK called in main context, Coro bug?\n";#d#
50 my $sub = lc $1; 286 return;#d#
287 }#d#
51 288
52 my $type = $PROP_TYPE{$prop}; 289 # kill coroutine otherwise
53 my $idx = $PROP_IDX {$prop}; 290 Coro::terminate
291};
54 292
55 *{"$class\::get_$sub"} = *{"$class\::$sub"} = sub { 293@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
56 $_[0]->get_property ($type, $idx) 294@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
57 }; 295@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
58 296@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
59 *{"$class\::set_$sub"} = sub { 297@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
60 $_[0]->set_property ($type, $idx, $_[1]); 298@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
61 } unless $ignore_set{$prop};
62 }
63}
64
65# auto-generate most of the API
66
67prop_gen OBJECT_PROP => "cf::object";
68# CFAPI_OBJECT_ANIMATION?
69prop_gen PLAYER_PROP => "cf::object::player";
70
71prop_gen MAP_PROP => "cf::map";
72prop_gen ARCH_PROP => "cf::arch";
73
74# guessed hierarchies
75
76@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 299@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
77@safe::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
78 300
79# we bless all objects into (empty) derived classes to force a method lookup 301# we bless all objects into (empty) derived classes to force a method lookup
80# within the Safe compartment. 302# within the Safe compartment.
81for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) { 303for my $pkg (qw(
82 no strict 'refs'; 304 cf::global cf::attachable
305 cf::object cf::object::player
306 cf::client cf::player
307 cf::arch cf::living
308 cf::map cf::mapspace
309 cf::party cf::region
310)) {
83 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 311 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84} 312}
85 313
86$Event::DIED = sub { 314$EV::DIED = sub {
87 warn "error in event callback: @_"; 315 Carp::cluck "error in event callback: @_";
88}; 316};
89 317
90my %ext_pkg;
91my @exts;
92my @hook;
93my %command;
94my %extcmd;
95
96############################################################################# 318#############################################################################
97# "new" plug-in system
98 319
99=item cf::object::attach ... # NYI 320=head2 UTILITY FUNCTIONS
100 321
101=item cf::attach_global ... 322=over 4
102 323
103=item cf::attach_to_type ... 324=item dumpval $ref
104 325
105=item cf::attach_to_objects ... 326=cut
106 327
107=item cf::attach_to_players ... 328sub dumpval {
329 eval {
330 local $SIG{__DIE__};
331 my $d;
332 if (1) {
333 $d = new Data::Dumper([$_[0]], ["*var"]);
334 $d->Terse(1);
335 $d->Indent(2);
336 $d->Quotekeys(0);
337 $d->Useqq(1);
338 #$d->Bless(...);
339 $d->Seen($_[1]) if @_ > 1;
340 $d = $d->Dump();
341 }
342 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
343 $d
344 } || "[unable to dump $_[0]: '$@']";
345}
108 346
109=item cf::attach_to_maps ... 347=item $ref = cf::decode_json $json
110 348
111 prio => $number, # lower is earlier 349Converts a JSON string into the corresponding perl data structure.
112 on_xxx => \&cb, 350
351=item $json = cf::encode_json $ref
352
353Converts a perl data structure into its JSON representation.
354
355=cut
356
357our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
358
359sub encode_json($) { $json_coder->encode ($_[0]) }
360sub decode_json($) { $json_coder->decode ($_[0]) }
361
362=item $ref = cf::yaml_load $scalar
363
364Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
365
366=cut
367
368sub fork_call(&@);
369
370sub yaml_load($) {
371 fork_call { YAML::XS::Load $_[0] } @_
372}
373
374=item cf::post_init { BLOCK }
375
376Execute the given codeblock, I<after> all extensions have been (re-)loaded,
377but I<before> the server starts ticking again.
378
379The codeblock will have a single boolean argument to indicate whether this
380is a reload or not.
381
382=cut
383
384sub post_init(&) {
385 push @POST_INIT, shift;
386}
387
388sub _post_init {
389 trace "running post_init jobs";
390
391 # run them in parallel...
392
393 my @join;
394
395 while () {
396 push @join, map &Coro::async ($_, 0), @POST_INIT;
397 @POST_INIT = ();
398
399 @join or last;
400
401 (pop @join)->join;
402 }
403}
404
405=item cf::lock_wait $string
406
407Wait until the given lock is available. See cf::lock_acquire.
408
409=item my $lock = cf::lock_acquire $string
410
411Wait until the given lock is available and then acquires it and returns
412a L<Guard> object. If the guard object gets destroyed (goes out of scope,
413for example when the coroutine gets canceled), the lock is automatically
414returned.
415
416Locks are *not* recursive, locking from the same coro twice results in a
417deadlocked coro.
418
419Lock names should begin with a unique identifier (for example, cf::map::find
420uses map_find and cf::map::load uses map_load).
421
422=item $locked = cf::lock_active $string
423
424Return true if the lock is currently active, i.e. somebody has locked it.
425
426=cut
427
428our $LOCKS = new Coro::SemaphoreSet;
429
430sub lock_wait($) {
431 $LOCKS->wait ($_[0]);
432}
433
434sub lock_acquire($) {
435 $LOCKS->guard ($_[0])
436}
437
438sub lock_active($) {
439 $LOCKS->count ($_[0]) < 1
440}
441
442sub freeze_mainloop {
443 tick_inhibit_inc;
444
445 &Guard::guard (\&tick_inhibit_dec);
446}
447
448=item cf::periodic $interval, $cb
449
450Like EV::periodic, but randomly selects a starting point so that the actions
451get spread over time.
452
453=cut
454
455sub periodic($$) {
456 my ($interval, $cb) = @_;
457
458 my $start = rand List::Util::min 180, $interval;
459
460 EV::periodic $start, $interval, 0, $cb
461}
462
463=item cf::get_slot $time[, $priority[, $name]]
464
465Allocate $time seconds of blocking CPU time at priority C<$priority>:
466This call blocks and returns only when you have at least C<$time> seconds
467of cpu time till the next tick. The slot is only valid till the next cede.
468
469The optional C<$name> can be used to identify the job to run. It might be
470used for statistical purposes and should identify the same time-class.
471
472Useful for short background jobs.
473
474=cut
475
476our @SLOT_QUEUE;
477our $SLOT_QUEUE;
478our $SLOT_DECAY = 0.9;
479
480$SLOT_QUEUE->cancel if $SLOT_QUEUE;
481$SLOT_QUEUE = Coro::async {
482 $Coro::current->desc ("timeslot manager");
483
484 my $signal = new Coro::Signal;
485 my $busy;
486
487 while () {
488 next_job:
489
490 my $avail = cf::till_tick;
491
492 for (0 .. $#SLOT_QUEUE) {
493 if ($SLOT_QUEUE[$_][0] <= $avail) {
494 $busy = 0;
495 my $job = splice @SLOT_QUEUE, $_, 1, ();
496 $job->[2]->send;
497 Coro::cede;
498 goto next_job;
499 } else {
500 $SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
501 }
502 }
503
504 if (@SLOT_QUEUE) {
505 # we do not use wait_for_tick() as it returns immediately when tick is inactive
506 push @cf::WAIT_FOR_TICK, $signal;
507 $signal->wait;
508 } else {
509 $busy = 0;
510 Coro::schedule;
511 }
512 }
513};
514
515sub get_slot($;$$) {
516 return if tick_inhibit || $Coro::current == $Coro::main;
517
518 my ($time, $pri, $name) = @_;
519
520 $time = clamp $time, 0.01, $TICK * .6;
521
522 my $sig = new Coro::Signal;
523
524 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
525 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
526 $SLOT_QUEUE->ready;
527 $sig->wait;
528}
529
530=item cf::async { BLOCK }
531
532Currently the same as Coro::async_pool, meaning you cannot use
533C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
534thing you are allowed to do is call C<prio> on it.
535
536=cut
537
538BEGIN { *async = \&Coro::async_pool }
539
540=item cf::sync_job { BLOCK }
541
542The design of Deliantra requires that the main coroutine ($Coro::main)
543is always able to handle events or runnable, as Deliantra is only
544partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
545acceptable.
546
547If it must be done, put the blocking parts into C<sync_job>. This will run
548the given BLOCK in another coroutine while waiting for the result. The
549server will be frozen during this time, so the block should either finish
550fast or be very important.
551
552=cut
553
554sub sync_job(&) {
555 my ($job) = @_;
556
557 if (in_main) {
558 my $time = AE::time;
559
560 # this is the main coro, too bad, we have to block
561 # till the operation succeeds, freezing the server :/
562
563 #LOG llevError, Carp::longmess "sync job";#d#
564
565 my $freeze_guard = freeze_mainloop;
566
567 my $busy = 1;
568 my @res;
569
570 (async {
571 $Coro::current->desc ("sync job coro");
572 @res = eval { $job->() };
573 error $@ if $@;
574 undef $busy;
575 })->prio (Coro::PRIO_MAX);
576
577 while ($busy) {
578 if (Coro::nready) {
579 Coro::cede_notself;
580 } else {
581 EV::loop EV::LOOP_ONESHOT;
582 }
583 }
584
585 my $time = AE::time - $time;
586
587 $TICK_START += $time; # do not account sync jobs to server load
588
589 wantarray ? @res : $res[0]
590 } else {
591 # we are in another coroutine, how wonderful, everything just works
592
593 $job->()
594 }
595}
596
597=item $coro = cf::async_ext { BLOCK }
598
599Like async, but this coro is automatically being canceled when the
600extension calling this is being unloaded.
601
602=cut
603
604sub async_ext(&) {
605 my $cb = shift;
606
607 my $coro = &Coro::async ($cb);
608
609 $coro->on_destroy (sub {
610 delete $EXT_CORO{$coro+0};
611 });
612 $EXT_CORO{$coro+0} = $coro;
613
614 $coro
615}
616
617=item fork_call { }, @args
618
619Executes the given code block with the given arguments in a seperate
620process, returning the results. Everything must be serialisable with
621Coro::Storable. May, of course, block. Note that the executed sub may
622never block itself or use any form of event handling.
623
624=cut
625
626sub post_fork {
627 reset_signals;
628}
629
630sub fork_call(&@) {
631 my ($cb, @args) = @_;
632
633 # we seemingly have to make a local copy of the whole thing,
634 # otherwise perl prematurely frees the stuff :/
635 # TODO: investigate and fix (likely this will be rather laborious)
636
637 my @res = Coro::Util::fork_eval {
638 cf::post_fork;
639 &$cb
640 } @args;
641
642 wantarray ? @res : $res[-1]
643}
644
645sub objinfo {
646 (
647 "counter value" => cf::object::object_count,
648 "objects created" => cf::object::create_count,
649 "objects destroyed" => cf::object::destroy_count,
650 "freelist size" => cf::object::free_count,
651 "allocated objects" => cf::object::objects_size,
652 "active objects" => cf::object::actives_size,
653 )
654}
655
656=item $coin = coin_from_name $name
657
658=cut
659
660our %coin_alias = (
661 "silver" => "silvercoin",
662 "silvercoin" => "silvercoin",
663 "silvercoins" => "silvercoin",
664 "gold" => "goldcoin",
665 "goldcoin" => "goldcoin",
666 "goldcoins" => "goldcoin",
667 "platinum" => "platinacoin",
668 "platinumcoin" => "platinacoin",
669 "platinumcoins" => "platinacoin",
670 "platina" => "platinacoin",
671 "platinacoin" => "platinacoin",
672 "platinacoins" => "platinacoin",
673 "royalty" => "royalty",
674 "royalties" => "royalty",
675);
676
677sub coin_from_name($) {
678 $coin_alias{$_[0]}
679 ? cf::arch::find $coin_alias{$_[0]}
680 : undef
681}
682
683=item $value = cf::db_get $family => $key
684
685Returns a single value from the environment database.
686
687=item cf::db_put $family => $key => $value
688
689Stores the given C<$value> in the family. It can currently store binary
690data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
691
692=item $db = cf::db_table "name"
693
694Create and/or open a new database table. The string must not be "db" and must be unique
695within each server.
696
697=cut
698
699sub db_table($) {
700 cf::error "db_get called from main context"
701 if $Coro::current == $Coro::main;
702
703 my ($name) = @_;
704 my $db = BDB::db_create $DB_ENV;
705
706 eval {
707 $db->set_flags (BDB::CHKSUM);
708
709 utf8::encode $name;
710 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
711 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
712 cf::cleanup "db_open(db): $!" if $!;
713 };
714 cf::cleanup "db_open(db): $@" if $@;
715
716 $db
717}
718
719our $DB;
720
721sub db_init {
722 $DB ||= db_table "db";
723}
724
725sub db_get($$) {
726 my $key = "$_[0]/$_[1]";
727
728 cf::error "db_get called from main context"
729 if $Coro::current == $Coro::main;
730
731 BDB::db_get $DB, undef, $key, my $data;
732
733 $! ? ()
734 : $data
735}
736
737sub db_put($$$) {
738 BDB::dbreq_pri 4;
739 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
740}
741
742=item cf::cache $id => [$paths...], $processversion => $process
743
744Generic caching function that returns the value of the resource $id,
745caching and regenerating as required.
746
747This function can block.
748
749=cut
750
751sub cache {
752 my ($id, $src, $processversion, $process) = @_;
753
754 my $meta =
755 join "\x00",
756 $processversion,
757 map {
758 aio_stat $_
759 and Carp::croak "$_: $!";
760
761 ($_, (stat _)[7,9])
762 } @$src;
763
764 my $dbmeta = db_get cache => "$id/meta";
765 if ($dbmeta ne $meta) {
766 # changed, we may need to process
767
768 my @data;
769 my $md5;
770
771 for (0 .. $#$src) {
772 0 <= aio_load $src->[$_], $data[$_]
773 or Carp::croak "$src->[$_]: $!";
774 }
775
776 # if processing is expensive, check
777 # checksum first
778 if (1) {
779 $md5 =
780 join "\x00",
781 $processversion,
782 map {
783 cf::cede_to_tick;
784 ($src->[$_], Digest::MD5::md5_hex $data[$_])
785 } 0.. $#$src;
786
787
788 my $dbmd5 = db_get cache => "$id/md5";
789 if ($dbmd5 eq $md5) {
790 db_put cache => "$id/meta", $meta;
791
792 return db_get cache => "$id/data";
793 }
794 }
795
796 my $t1 = Time::HiRes::time;
797 my $data = $process->(\@data);
798 my $t2 = Time::HiRes::time;
799
800 info "cache: '$id' processed in ", $t2 - $t1, "s\n";
801
802 db_put cache => "$id/data", $data;
803 db_put cache => "$id/md5" , $md5;
804 db_put cache => "$id/meta", $meta;
805
806 return $data;
807 }
808
809 db_get cache => "$id/data"
810}
811
812=item cf::datalog type => key => value, ...
813
814Log a datalog packet of the given type with the given key-value pairs.
815
816=cut
817
818sub datalog($@) {
819 my ($type, %kv) = @_;
820 info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
821}
822
823=back
824
825=cut
826
827#############################################################################
828
829=head2 ATTACHABLE OBJECTS
830
831Many objects in deliantra are so-called attachable objects. That means you can
832attach callbacks/event handlers (a collection of which is called an "attachment")
833to it. All such attachable objects support the following methods.
834
835In the following description, CLASS can be any of C<global>, C<object>
836C<player>, C<client> or C<map> (i.e. the attachable objects in
837Deliantra).
838
839=over 4
840
841=item $attachable->attach ($attachment, key => $value...)
842
843=item $attachable->detach ($attachment)
844
845Attach/detach a pre-registered attachment to a specific object and give it
846the specified key/value pairs as arguments.
847
848Example, attach a minesweeper attachment to the given object, making it a
84910x10 minesweeper game:
850
851 $obj->attach (minesweeper => width => 10, height => 10);
852
853=item $bool = $attachable->attached ($name)
854
855Checks wether the named attachment is currently attached to the object.
856
857=item cf::CLASS->attach ...
858
859=item cf::CLASS->detach ...
860
861Define an anonymous attachment and attach it to all objects of the given
862CLASS. See the next function for an explanation of its arguments.
863
864You can attach to global events by using the C<cf::global> class.
865
866Example, log all player logins:
867
868 cf::player->attach (
869 on_login => sub {
870 my ($pl) = @_;
871 ...
872 },
873 );
874
875Example, attach to the jeweler skill:
876
877 cf::object->attach (
878 type => cf::SKILL,
879 subtype => cf::SK_JEWELER,
880 on_use_skill => sub {
881 my ($sk, $ob, $part, $dir, $msg) = @_;
882 ...
883 },
884 );
885
886=item cf::CLASS::attachment $name, ...
887
888Register an attachment by C<$name> through which attachable objects of the
889given CLASS can refer to this attachment.
890
891Some classes such as deliantra maps and objects can specify attachments
892that are attached at load/instantiate time, thus the need for a name.
893
894These calls expect any number of the following handler/hook descriptions:
895
896=over 4
897
898=item prio => $number
899
900Set the priority for all following handlers/hooks (unless overwritten
901by another C<prio> setting). Lower priority handlers get executed
902earlier. The default priority is C<0>, and many built-in handlers are
903registered at priority C<-1000>, so lower priorities should not be used
904unless you know what you are doing.
905
906=item type => $type
907
908(Only for C<< cf::object->attach >> calls), limits the attachment to the
909given type of objects only (the additional parameter C<subtype> can be
910used to further limit to the given subtype).
911
912=item on_I<event> => \&cb
913
914Call the given code reference whenever the named event happens (event is
915something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
916handlers are recognised generally depends on the type of object these
917handlers attach to).
918
919See F<include/eventinc.h> for the full list of events supported, and their
920class.
921
113 package => package::, 922=item package => package::
923
924Look for sub functions of the name C<< on_I<event> >> in the given
925package and register them. Only handlers for eevents supported by the
926object/class are recognised.
927
928=back
929
930Example, define an attachment called "sockpuppet" that calls the given
931event handler when a monster attacks:
932
933 cf::object::attachment sockpuppet =>
934 on_skill_attack => sub {
935 my ($self, $victim) = @_;
936 ...
937 }
938 }
939
940=item $attachable->valid
941
942Just because you have a perl object does not mean that the corresponding
943C-level object still exists. If you try to access an object that has no
944valid C counterpart anymore you get an exception at runtime. This method
945can be used to test for existence of the C object part without causing an
946exception.
114 947
115=cut 948=cut
116 949
117# the following variables are defined in .xs and must not be re-created 950# the following variables are defined in .xs and must not be re-created
118our @CB_GLOBAL = (); # registry for all global events 951our @CB_GLOBAL = (); # registry for all global events
119our @CB_OBJECT = (); 952our @CB_ATTACHABLE = (); # registry for all attachables
953our @CB_OBJECT = (); # all objects (should not be used except in emergency)
120our @CB_PLAYER = (); 954our @CB_PLAYER = ();
955our @CB_CLIENT = ();
121our @CB_TYPE = (); # registry for type (cf-object class) based events 956our @CB_TYPE = (); # registry for type (cf-object class) based events
122our @CB_MAP = (); 957our @CB_MAP = ();
123 958
959my %attachment;
960
961sub cf::attachable::thawer_merge {
962 # simply override everything except _meta
963 local $_[0]{_meta};
964 %{$_[0]} = %{$_[1]};
965}
966
124sub _attach_cb($\%$$$) { 967sub _attach_cb($$$$) {
125 my ($registry, $undo, $event, $prio, $cb) = @_; 968 my ($registry, $event, $prio, $cb) = @_;
126 969
127 use sort 'stable'; 970 use sort 'stable';
128 971
129 $cb = [$prio, $cb]; 972 $cb = [$prio, $cb];
130 973
131 @{$registry->[$event]} = sort 974 @{$registry->[$event]} = sort
132 { $a->[0] cmp $b->[0] } 975 { $a->[0] cmp $b->[0] }
133 @{$registry->[$event] || []}, $cb; 976 @{$registry->[$event] || []}, $cb;
134
135 push @{$undo->{cb}}, [$event, $cb];
136} 977}
978
979# hack
980my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
137 981
138# attach handles attaching event callbacks 982# attach handles attaching event callbacks
139# the only thing the caller has to do is pass the correct 983# the only thing the caller has to do is pass the correct
140# registry (== where the callback attaches to). 984# registry (== where the callback attaches to).
141sub _attach(\@$\@) { 985sub _attach {
142 my ($registry, $klass, $arg) = @_; 986 my ($registry, $klass, @arg) = @_;
143 987
988 my $object_type;
144 my $prio = 0; 989 my $prio = 0;
145
146 my %undo = (
147 registry => $registry,
148 cb => [],
149 );
150
151 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 990 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
152 991
992 #TODO: get rid of this hack
993 if ($attachable_klass{$klass}) {
994 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
995 }
996
153 while (@$arg) { 997 while (@arg) {
154 my $type = shift @$arg; 998 my $type = shift @arg;
155 999
156 if ($type eq "prio") { 1000 if ($type eq "prio") {
157 $prio = shift @$arg; 1001 $prio = shift @arg;
1002
1003 } elsif ($type eq "type") {
1004 $object_type = shift @arg;
1005 $registry = $CB_TYPE[$object_type] ||= [];
1006
1007 } elsif ($type eq "subtype") {
1008 defined $object_type or Carp::croak "subtype specified without type";
1009 my $object_subtype = shift @arg;
1010 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
158 1011
159 } elsif ($type eq "package") { 1012 } elsif ($type eq "package") {
160 my $pkg = shift @$arg; 1013 my $pkg = shift @arg;
161 1014
162 while (my ($name, $id) = each %cb_id) { 1015 while (my ($name, $id) = each %cb_id) {
163 if (my $cb = $pkg->can ($name)) { 1016 if (my $cb = $pkg->can ($name)) {
164 _attach_cb $registry, %undo, $id, $prio, $cb; 1017 _attach_cb $registry, $id, $prio, $cb;
165 } 1018 }
166 } 1019 }
167 1020
168 } elsif (exists $cb_id{$type}) { 1021 } elsif (exists $cb_id{$type}) {
169 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @$arg; 1022 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
170 1023
171 } elsif (ref $type) { 1024 } elsif (ref $type) {
172 warn "attaching objects not supported, ignoring.\n"; 1025 error "attaching objects not supported, ignoring.\n";
173 1026
174 } else { 1027 } else {
175 shift @$arg; 1028 shift @arg;
176 warn "attach argument '$type' not supported, ignoring.\n"; 1029 error "attach argument '$type' not supported, ignoring.\n";
177 } 1030 }
178 } 1031 }
179
180 \%undo
181} 1032}
182 1033
183sub cf::object::attach { 1034sub _object_attach {
184 die; 1035 my ($obj, $name, %arg) = @_;
185}
186 1036
187sub attach_global { 1037 return if exists $obj->{_attachment}{$name};
188 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
189}
190 1038
191sub attach_to_type { 1039 if (my $attach = $attachment{$name}) {
192 my $type = shift; 1040 my $registry = $obj->registry;
193 _attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_
194}
195 1041
196sub attach_to_objects { 1042 for (@$attach) {
197 _attach @CB_OBJECT, KLASS_OBJECT, @_ 1043 my ($klass, @attach) = @$_;
198} 1044 _attach $registry, $klass, @attach;
1045 }
199 1046
200sub attach_to_players { 1047 $obj->{$name} = \%arg;
201 _attach @CB_PLAYER, KLASS_PLAYER, @_ 1048 } else {
202} 1049 info "object uses attachment '$name' which is not available, postponing.\n";
1050 }
203 1051
204sub attach_to_maps { 1052 $obj->{_attachment}{$name} = undef;
205 _attach @CB_MAP, KLASS_MAP, @_ 1053}
1054
1055sub cf::attachable::attach {
1056 if (ref $_[0]) {
1057 _object_attach @_;
1058 } else {
1059 _attach shift->_attach_registry, @_;
1060 }
1061 _recalc_want;
1062};
1063
1064# all those should be optimised
1065sub cf::attachable::detach {
1066 my ($obj, $name) = @_;
1067
1068 if (ref $obj) {
1069 delete $obj->{_attachment}{$name};
1070 reattach ($obj);
1071 } else {
1072 Carp::croak "cannot, currently, detach class attachments";
1073 }
1074 _recalc_want;
1075};
1076
1077sub cf::attachable::attached {
1078 my ($obj, $name) = @_;
1079
1080 exists $obj->{_attachment}{$name}
1081}
1082
1083for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
1084 eval "#line " . __LINE__ . " 'cf.pm'
1085 sub cf::\L$klass\E::_attach_registry {
1086 (\\\@CB_$klass, KLASS_$klass)
1087 }
1088
1089 sub cf::\L$klass\E::attachment {
1090 my \$name = shift;
1091
1092 \$attachment{\$name} = [[KLASS_$klass, \@_]];
1093 }
1094 ";
1095 die if $@;
206} 1096}
207 1097
208our $override; 1098our $override;
1099our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
209 1100
210sub override() { 1101sub override {
211 $override = 1 1102 $override = 1;
1103 @INVOKE_RESULTS = (@_);
212} 1104}
213 1105
214sub invoke { 1106sub do_invoke {
215 my $event = shift; 1107 my $event = shift;
216 my $callbacks = shift; 1108 my $callbacks = shift;
217 1109
1110 @INVOKE_RESULTS = ();
1111
218 local $override; 1112 local $override;
219 1113
220 for (@$callbacks) { 1114 for (@$callbacks) {
221 eval { &{$_->[1]} }; 1115 eval { &{$_->[1]} };
222 1116
223 if ($@) { 1117 if ($@) {
224 warn "$@";
225 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; 1118 error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
226 override; 1119 override;
227 } 1120 }
228 1121
229 return 1 if $override; 1122 return 1 if $override;
230 } 1123 }
231 1124
232 0 1125 0
233} 1126}
234 1127
1128=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
1129
1130=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
1131
1132Generate an object-specific event with the given arguments.
1133
1134This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
1135removed in future versions), and there is no public API to access override
1136results (if you must, access C<@cf::INVOKE_RESULTS> directly).
1137
1138=back
1139
1140=cut
1141
235############################################################################# 1142#############################################################################
236# old plug-in events 1143# object support
237 1144
238sub inject_event { 1145sub _object_equal($$);
239 my $extension = shift; 1146sub _object_equal($$) {
240 my $event_code = shift; 1147 my ($a, $b) = @_;
241 1148
242 my $cb = $hook[$event_code]{$extension} 1149 return 0 unless (ref $a) eq (ref $b);
1150
1151 if ("HASH" eq ref $a) {
1152 my @ka = keys %$a;
1153 my @kb = keys %$b;
1154
1155 return 0 if @ka != @kb;
1156
1157 for (0 .. $#ka) {
1158 return 0 unless $ka[$_] eq $kb[$_];
1159 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1160 }
1161
1162 } elsif ("ARRAY" eq ref $a) {
1163
1164 return 0 if @$a != @$b;
1165
1166 for (0 .. $#$a) {
1167 return 0 unless _object_equal $a->[$_], $b->[$_];
1168 }
1169
1170 } elsif ($a ne $b) {
1171 return 0;
1172 }
1173
1174 1
1175}
1176
1177our $SLOW_MERGES;#d#
1178sub _can_merge {
1179 my ($ob1, $ob2) = @_;
1180
1181 ++$SLOW_MERGES;#d#
1182
1183 # we do the slow way here
1184 return _object_equal $ob1, $ob2
1185}
1186
1187sub reattach {
1188 # basically do the same as instantiate, without calling instantiate
1189 my ($obj) = @_;
1190
1191 # no longer needed after getting rid of delete_package?
1192 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1193
1194 my $registry = $obj->registry;
1195
1196 @$registry = ();
1197
1198 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
1199
1200 for my $name (keys %{ $obj->{_attachment} || {} }) {
1201 if (my $attach = $attachment{$name}) {
1202 for (@$attach) {
1203 my ($klass, @attach) = @$_;
1204 _attach $registry, $klass, @attach;
1205 }
1206 } else {
1207 info "object uses attachment '$name' that is not available, postponing.\n";
1208 }
1209 }
1210}
1211
1212cf::attachable->attach (
1213 prio => -1000000,
1214 on_instantiate => sub {
1215 my ($obj, $data) = @_;
1216
1217 $data = decode_json $data;
1218
1219 for (@$data) {
1220 my ($name, $args) = @$_;
1221
1222 $obj->attach ($name, %{$args || {} });
1223 }
1224 },
1225 on_reattach => \&reattach,
1226 on_clone => sub {
1227 my ($src, $dst) = @_;
1228
1229 @{$dst->registry} = @{$src->registry};
1230
1231 %$dst = %$src;
1232
1233 %{$dst->{_attachment}} = %{$src->{_attachment}}
1234 if exists $src->{_attachment};
1235 },
1236);
1237
1238sub object_freezer_save {
1239 my ($filename, $rdata, $objs) = @_;
1240
1241 sync_job {
1242 if (length $$rdata) {
1243 utf8::decode (my $decname = $filename);
1244 trace sprintf "saving %s (%d,%d)\n",
1245 $decname, length $$rdata, scalar @$objs
1246 if $VERBOSE_IO;
1247
1248 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1249 aio_chmod $fh, SAVE_MODE;
1250 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1251 if ($cf::USE_FSYNC) {
1252 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1253 aio_fsync $fh;
1254 }
1255 aio_close $fh;
1256
1257 if (@$objs) {
1258 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1259 aio_chmod $fh, SAVE_MODE;
1260 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1261 aio_write $fh, 0, (length $data), $data, 0;
1262 if ($cf::USE_FSYNC) {
1263 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1264 aio_fsync $fh;
1265 }
1266 aio_close $fh;
1267 aio_rename "$filename.pst~", "$filename.pst";
1268 }
1269 } else {
1270 aio_unlink "$filename.pst";
1271 }
1272
1273 aio_rename "$filename~", $filename;
1274
1275 $filename =~ s%/[^/]+$%%;
1276 aio_pathsync $filename if $cf::USE_FSYNC;
1277 } else {
1278 error "unable to save objects: $filename~: $!\n";
1279 }
1280 } else {
1281 aio_unlink $filename;
1282 aio_unlink "$filename.pst";
1283 }
1284 };
1285}
1286
1287sub object_freezer_as_string {
1288 my ($rdata, $objs) = @_;
1289
1290 use Data::Dumper;
1291
1292 $$rdata . Dumper $objs
1293}
1294
1295sub object_thawer_load {
1296 my ($filename) = @_;
1297
1298 my ($data, $av);
1299
1300 (aio_load $filename, $data) >= 0
243 or return; 1301 or return;
244 1302
245 &$cb 1303 unless (aio_stat "$filename.pst") {
246} 1304 (aio_load "$filename.pst", $av) >= 0
247
248sub inject_global_event {
249 my $event = shift;
250
251 my $cb = $hook[$event]
252 or return; 1305 or return;
253 1306
254 List::Util::max map &$_, values %$cb 1307 my $st = eval { Coro::Storable::thaw $av };
255} 1308 $av = $st->{objs};
256
257sub inject_command {
258 my ($name, $obj, $params) = @_;
259
260 for my $cmd (@{ $command{$name} }) {
261 $cmd->[1]->($obj, $params);
262 } 1309 }
263 1310
264 -1 1311 utf8::decode (my $decname = $filename);
1312 trace sprintf "loading %s (%d,%d)\n",
1313 $decname, length $data, scalar @{$av || []}
1314 if $VERBOSE_IO;
1315
1316 ($data, $av)
265} 1317}
1318
1319=head2 COMMAND CALLBACKS
1320
1321=over 4
1322
1323=cut
1324
1325#############################################################################
1326# command handling &c
1327
1328=item cf::register_command $name => \&callback($ob,$args);
1329
1330Register a callback for execution when the client sends the user command
1331$name.
1332
1333=cut
266 1334
267sub register_command { 1335sub register_command {
268 my ($name, $time, $cb) = @_; 1336 my ($name, $cb) = @_;
269 1337
270 my $caller = caller; 1338 my $caller = caller;
271 #warn "registering command '$name/$time' to '$caller'"; 1339 #warn "registering command '$name/$time' to '$caller'";
272 1340
273 push @{ $command{$name} }, [$time, $cb, $caller]; 1341 push @{ $COMMAND{$name} }, [$caller, $cb];
274 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
275} 1342}
1343
1344=item cf::register_extcmd $name => \&callback($pl,$packet);
1345
1346Register a callback for execution when the client sends an (synchronous)
1347extcmd packet. Ext commands will be processed in the order they are
1348received by the server, like other user commands. The first argument is
1349the logged-in player. Ext commands can only be processed after a player
1350has logged in successfully.
1351
1352If the callback returns something, it is sent back as if reply was being
1353called.
1354
1355=item cf::register_exticmd $name => \&callback($ns,$packet);
1356
1357Register a callback for execution when the client sends an (asynchronous)
1358exticmd packet. Exti commands are processed by the server as soon as they
1359are received, i.e. out of order w.r.t. other commands. The first argument
1360is a client socket. Exti commands can be received anytime, even before
1361log-in.
1362
1363If the callback returns something, it is sent back as if reply was being
1364called.
1365
1366=cut
276 1367
277sub register_extcmd { 1368sub register_extcmd {
278 my ($name, $cb) = @_; 1369 my ($name, $cb) = @_;
279 1370
280 my $caller = caller; 1371 $EXTCMD{$name} = $cb;
281 #warn "registering extcmd '$name' to '$caller'";
282
283 $extcmd{$name} = [$cb, $caller];
284} 1372}
285 1373
286sub register { 1374sub register_exticmd {
287 my ($base, $pkg) = @_; 1375 my ($name, $cb) = @_;
288 1376
289 for my $idx (0 .. $#PLUGIN_EVENT) { 1377 $EXTICMD{$name} = $cb;
290 if (my $ref = $pkg->can ("on_$PLUGIN_EVENT[$idx]")) {
291 #warn "registering $PLUGIN_EVENT[$idx] hook to '$pkg'\n";
292 $hook[$idx]{$base} = $ref;
293 }
294 }
295} 1378}
296 1379
297sub load_extension { 1380use File::Glob ();
298 my ($path) = @_;
299 1381
300 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1382cf::player->attach (
301 my $base = $1; 1383 on_unknown_command => sub {
302 my $pkg = $1; 1384 my ($pl, $name, $params) = @_;
303 $pkg =~ s/[^[:word:]]/_/g;
304 $pkg = "ext::$pkg";
305 1385
306 warn "loading '$path' into '$pkg'\n"; 1386 my $cb = $COMMAND{$name}
1387 or return;
307 1388
308 open my $fh, "<:utf8", $path 1389 for my $cmd (@$cb) {
309 or die "$path: $!"; 1390 $cmd->[1]->($pl->ob, $params);
310
311 my $source =
312 "package $pkg; use strict; use utf8;\n"
313 . "#line 1 \"$path\"\n{\n"
314 . (do { local $/; <$fh> })
315 . "\n};\n1";
316
317 eval $source
318 or die "$path: $@";
319
320 push @exts, $pkg;
321 $ext_pkg{$base} = $pkg;
322
323# no strict 'refs';
324# @{"$pkg\::ISA"} = ext::;
325
326 register $base, $pkg;
327}
328
329sub unload_extension {
330 my ($pkg) = @_;
331
332 warn "removing extension $pkg\n";
333
334 # remove hooks
335 for my $idx (0 .. $#PLUGIN_EVENT) {
336 delete $hook[$idx]{$pkg};
337 }
338
339 # remove commands
340 for my $name (keys %command) {
341 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
342
343 if (@cb) {
344 $command{$name} = \@cb;
345 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
346 } else {
347 delete $command{$name};
348 delete $COMMAND{"$name\000"};
349 }
350 }
351
352 # remove extcmds
353 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
354 delete $extcmd{$name};
355 }
356
357 if (my $cb = $pkg->can ("unload")) {
358 eval {
359 $cb->($pkg);
360 1
361 } or warn "$pkg unloaded, but with errors: $@";
362 }
363
364 Symbol::delete_package $pkg;
365}
366
367sub load_extensions {
368 my $LIBDIR = maps_directory "perl";
369
370 for my $ext (<$LIBDIR/*.ext>) {
371 next unless -r $ext;
372 eval {
373 load_extension $ext;
374 1
375 } or warn "$ext not loaded: $@";
376 }
377}
378
379sub _perl_reload(&) {
380 my ($msg) = @_;
381
382 $msg->("reloading...");
383
384 eval {
385 # 1. cancel all watchers
386 $_->cancel for Event::all_watchers;
387
388 # 2. unload all extensions
389 for (@exts) {
390 $msg->("unloading <$_>");
391 unload_extension $_;
392 }
393
394 # 3. unload all modules loaded from $LIBDIR
395 while (my ($k, $v) = each %INC) {
396 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
397
398 $msg->("removing <$k>");
399 delete $INC{$k};
400
401 $k =~ s/\.pm$//;
402 $k =~ s/\//::/g;
403
404 if (my $cb = $k->can ("unload_module")) {
405 $cb->();
406 }
407
408 Symbol::delete_package $k;
409 }
410
411 # 4. get rid of safe::, as good as possible
412 Symbol::delete_package "safe::$_"
413 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
414
415 # 5. remove register_script_function callbacks
416 # TODO
417
418 # 6. unload cf.pm "a bit"
419 delete $INC{"cf.pm"};
420
421 # don't, removes xs symbols, too,
422 # and global variables created in xs
423 #Symbol::delete_package __PACKAGE__;
424
425 # 7. reload cf.pm
426 $msg->("reloading cf.pm");
427 require cf;
428 };
429 $msg->($@) if $@;
430
431 $msg->("reloaded");
432};
433
434sub perl_reload() {
435 _perl_reload {
436 warn $_[0];
437 print "$_[0]\n";
438 };
439}
440
441register_command "perl-reload", 0, sub {
442 my ($who, $arg) = @_;
443
444 if ($who->flag (FLAG_WIZ)) {
445 _perl_reload {
446 warn $_[0];
447 $who->message ($_[0]);
448 }; 1391 }
1392
1393 cf::override;
449 } 1394 },
450};
451
452#############################################################################
453# utility functions
454
455use JSON::Syck (); # TODO# replace by JSON::PC once working
456
457sub from_json($) {
458 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
459 JSON::Syck::Load $_[0]
460}
461
462sub to_json($) {
463 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
464 JSON::Syck::Dump $_[0]
465}
466
467#############################################################################
468# extcmd framework, basically convert ext <msg>
469# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
470
471attach_global
472 on_extcmd => sub { 1395 on_extcmd => sub {
473 my ($pl, $buf) = @_; 1396 my ($pl, $buf) = @_;
474 1397
475 my $msg = eval { from_json $buf }; 1398 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
476 1399
477 if (ref $msg) { 1400 if (ref $msg) {
1401 my ($type, $reply, @payload) =
1402 "ARRAY" eq ref $msg
1403 ? @$msg
1404 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1405
1406 my @reply;
1407
478 if (my $cb = $extcmd{$msg->{msgtype}}) { 1408 if (my $cb = $EXTCMD{$type}) {
479 if (my %reply = $cb->[0]->($pl, $msg)) { 1409 @reply = $cb->($pl, @payload);
480 $pl->ext_reply ($msg->{msgid}, %reply); 1410 }
1411
1412 $pl->ext_reply ($reply, @reply)
1413 if $reply;
1414
1415 } else {
1416 error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1417 }
1418
1419 cf::override;
1420 },
1421);
1422
1423# "readahead" all extensions
1424sub cache_extensions {
1425 my $grp = IO::AIO::aio_group;
1426
1427 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1428 for (grep /\.ext$/, @{$_[0]}) {
1429 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1430 }
1431 };
1432
1433 $grp
1434}
1435
1436sub load_extensions {
1437 info "loading extensions...";
1438
1439 cf::sync_job {
1440 my %todo;
1441
1442 for my $path (<$LIBDIR/*.ext>) {
1443 next unless -r $path;
1444
1445 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1446 my $base = $1;
1447 my $pkg = $1;
1448 $pkg =~ s/[^[:word:]]/_/g;
1449 $pkg = "ext::$pkg";
1450
1451 open my $fh, "<:utf8", $path
1452 or die "$path: $!";
1453
1454 my $source = do { local $/; <$fh> };
1455
1456 my %ext = (
1457 path => $path,
1458 base => $base,
1459 pkg => $pkg,
1460 );
1461
1462 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1463 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1464
1465 $ext{source} =
1466 "package $pkg; use common::sense;\n"
1467 . "#line 1 \"$path\"\n{\n"
1468 . $source
1469 . "\n};\n1";
1470
1471 $todo{$base} = \%ext;
1472 }
1473
1474 my $pass = 0;
1475 my %done;
1476 while (%todo) {
1477 my $progress;
1478
1479 ++$pass;
1480
1481 ext:
1482 while (my ($k, $v) = each %todo) {
1483 for (split /,\s*/, $v->{meta}{depends}) {
1484 next ext
1485 unless exists $done{$_};
1486 }
1487
1488 trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1489
1490 my $active = eval $v->{source};
1491
1492 if (length $@) {
1493 error "$v->{path}: $@\n";
1494
1495 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1496 if exists $v->{meta}{mandatory};
1497
1498 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1499 delete $todo{$k};
1500 } else {
1501 $done{$k} = delete $todo{$k};
1502 push @EXTS, $v->{pkg};
1503 $progress = 1;
1504
1505 info "$v->{base}: extension inactive.\n"
1506 unless $active;
481 } 1507 }
482 } 1508 }
483 } else { 1509
484 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1510 unless ($progress) {
1511 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1512
1513 while (my ($k, $v) = each %todo) {
1514 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1515 if exists $v->{meta}{mandatory};
1516 }
485 } 1517 }
486 1518 }
487 cf::override;
488 }, 1519 };
489; 1520}
490 1521
491############################################################################# 1522#############################################################################
492# load/save/clean perl data associated with a map
493 1523
494*cf::mapsupport::on_clean = sub { 1524=back
1525
1526=head2 CORE EXTENSIONS
1527
1528Functions and methods that extend core deliantra objects.
1529
1530=cut
1531
1532package cf::player;
1533
1534use Coro::AIO;
1535
1536=head3 cf::player
1537
1538=over 4
1539
1540=item cf::player::num_playing
1541
1542Returns the official number of playing players, as per the Crossfire metaserver rules.
1543
1544=cut
1545
1546sub num_playing {
1547 scalar grep
1548 $_->ob->map
1549 && !$_->hidden
1550 && !$_->ob->flag (cf::FLAG_WIZ),
1551 cf::player::list
1552}
1553
1554=item cf::player::find $login
1555
1556Returns the given player object, loading it if necessary (might block).
1557
1558=cut
1559
1560sub playerdir($) {
1561 "$PLAYERDIR/"
1562 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1563}
1564
1565sub path($) {
1566 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1567
1568 (playerdir $login) . "/playerdata"
1569}
1570
1571sub find_active($) {
1572 $cf::PLAYER{$_[0]}
1573 and $cf::PLAYER{$_[0]}->active
1574 and $cf::PLAYER{$_[0]}
1575}
1576
1577sub exists($) {
495 my ($map) = @_; 1578 my ($login) = @_;
496 1579
497 my $path = $map->tmpname; 1580 $cf::PLAYER{$login}
498 defined $path or return; 1581 or !aio_stat path $login
1582}
499 1583
500 unlink "$path.cfperl"; 1584sub find($) {
501}; 1585 return $cf::PLAYER{$_[0]} || do {
1586 my $login = $_[0];
502 1587
503*cf::mapsupport::on_swapin = 1588 my $guard = cf::lock_acquire "user_find:$login";
504*cf::mapsupport::on_load = sub {
505 my ($map) = @_;
506 1589
507 my $path = $map->tmpname; 1590 $cf::PLAYER{$_[0]} || do {
508 $path = $map->path unless defined $path; 1591 # rename old playerfiles to new ones
1592 #TODO: remove when no longer required
1593 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1594 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1595 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1596 aio_unlink +(playerdir $login) . "/$login.pl";
509 1597
510 open my $fh, "<:raw", "$path.cfperl" 1598 my $f = new_from_file cf::object::thawer path $login
511 or return; # no perl data 1599 or return;
512 1600
513 my $data = Storable::thaw do { local $/; <$fh> }; 1601 my $pl = cf::player::load_pl $f
1602 or return;
514 1603
515 $data->{version} <= 1 1604 local $cf::PLAYER_LOADING{$login} = $pl;
516 or return; # too new 1605 $f->resolve_delayed_derefs;
517 1606 $cf::PLAYER{$login} = $pl
518 $map->_set_obs ($data->{obs});
519};
520
521*cf::mapsupport::on_swapout = sub {
522 my ($map) = @_;
523
524 my $path = $map->tmpname;
525 $path = $map->path unless defined $path;
526
527 my $obs = $map->_get_obs;
528
529 if (defined $obs) {
530 open my $fh, ">:raw", "$path.cfperl"
531 or die "$path.cfperl: $!";
532
533 stat $path;
534
535 print $fh Storable::nfreeze {
536 size => (stat _)[7],
537 time => (stat _)[9],
538 version => 1,
539 obs => $obs,
540 }; 1607 }
541
542 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
543 } else {
544 unlink "$path.cfperl";
545 } 1608 }
546};
547
548attach_to_maps prio => -10000, package => cf::mapsupport::;
549
550#############################################################################
551# load/save perl data associated with player->ob objects
552
553sub all_objects(@) {
554 @_, map all_objects ($_->inv), @_
555} 1609}
556 1610
557attach_to_players 1611cf::player->attach (
558 on_load => sub { 1612 on_load => sub {
559 my ($pl, $path) = @_; 1613 my ($pl, $path) = @_;
560 1614
561 for my $o (all_objects $pl->ob) { 1615 # restore slots saved in save, below
562 if (my $value = $o->get_ob_key_value ("_perl_data")) { 1616 my $slots = delete $pl->{_slots};
563 $o->set_ob_key_value ("_perl_data");
564 1617
565 %$o = %{ Storable::thaw pack "H*", $value }; 1618 $pl->ob->current_weapon ($slots->[0]);
1619 $pl->combat_ob ($slots->[1]);
1620 $pl->ranged_ob ($slots->[2]);
1621 },
1622);
1623
1624sub save($) {
1625 my ($pl) = @_;
1626
1627 return if $pl->{deny_save};
1628
1629 my $path = path $pl;
1630 my $guard = cf::lock_acquire "user_save:$path";
1631
1632 return if $pl->{deny_save};
1633
1634 aio_mkdir playerdir $pl, 0770;
1635 $pl->{last_save} = $cf::RUNTIME;
1636
1637 cf::get_slot 0.01;
1638
1639 # save slots, to be restored later
1640 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1641
1642 $pl->save_pl ($path);
1643 cf::cede_to_tick;
1644}
1645
1646sub new($) {
1647 my ($login) = @_;
1648
1649 my $self = create;
1650
1651 $self->ob->name ($login);
1652 $self->{deny_save} = 1;
1653
1654 $cf::PLAYER{$login} = $self;
1655
1656 $self
1657}
1658
1659=item $player->send_msg ($channel, $msg, $color, [extra...])
1660
1661=cut
1662
1663sub send_msg {
1664 my $ns = shift->ns
1665 or return;
1666 $ns->send_msg (@_);
1667}
1668
1669=item $pl->quit_character
1670
1671Nukes the player without looking back. If logged in, the connection will
1672be destroyed. May block for a long time.
1673
1674=cut
1675
1676sub quit_character {
1677 my ($pl) = @_;
1678
1679 my $name = $pl->ob->name;
1680
1681 $pl->{deny_save} = 1;
1682 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1683
1684 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1685 $pl->deactivate;
1686
1687 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1688 $pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
1689 ext::highscore::check ($pl->ob);
1690
1691 $pl->ns->destroy if $pl->ns;
1692
1693 my $path = playerdir $pl;
1694 my $temp = "$path~$cf::RUNTIME~deleting~";
1695 aio_rename $path, $temp;
1696 delete $cf::PLAYER{$pl->ob->name};
1697 $pl->destroy;
1698
1699 my $prefix = qr<^~\Q$name\E/>;
1700
1701 # nuke player maps
1702 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1703
1704 IO::AIO::aio_rmtree $temp;
1705}
1706
1707=item $pl->kick
1708
1709Kicks a player out of the game. This destroys the connection.
1710
1711=cut
1712
1713sub kick {
1714 my ($pl, $kicker) = @_;
1715
1716 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1717 $pl->killer ("kicked");
1718 $pl->ns->destroy;
1719}
1720
1721=item cf::player::list_logins
1722
1723Returns am arrayref of all valid playernames in the system, can take a
1724while and may block, so not sync_job-capable, ever.
1725
1726=cut
1727
1728sub list_logins {
1729 my $dirs = aio_readdir $PLAYERDIR
1730 or return [];
1731
1732 my @logins;
1733
1734 for my $login (@$dirs) {
1735 my $path = path $login;
1736
1737 # a .pst is a dead give-away for a valid player
1738 # if no pst file found, open and chekc for blocked users
1739 if (aio_stat "$path.pst") {
1740 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1741 aio_read $fh, 0, 512, my $buf, 0 or next;
1742 $buf !~ /^password -------------$/m or next; # official not-valid tag
1743 }
1744
1745 utf8::decode $login;
1746 push @logins, $login;
1747 }
1748
1749 \@logins
1750}
1751
1752=item $player->maps
1753
1754=item cf::player::maps $login
1755
1756Returns an arrayref of map paths that are private for this
1757player. May block.
1758
1759=cut
1760
1761sub maps($) {
1762 my ($pl) = @_;
1763
1764 $pl = ref $pl ? $pl->ob->name : $pl;
1765
1766 my $files = aio_readdir playerdir $pl
1767 or return;
1768
1769 my @paths;
1770
1771 for (@$files) {
1772 utf8::decode $_;
1773 next if /\.(?:pl|pst)$/;
1774 next unless /^$PATH_SEP/o;
1775
1776 push @paths, cf::map::normalise "~$pl/$_";
1777 }
1778
1779 \@paths
1780}
1781
1782=item $protocol_xml = $player->expand_cfpod ($cfpod)
1783
1784Expand deliantra pod fragments into protocol xml.
1785
1786=item $player->ext_reply ($msgid, @msg)
1787
1788Sends an ext reply to the player.
1789
1790=cut
1791
1792sub ext_reply($$@) {
1793 my ($self, $id, @msg) = @_;
1794
1795 $self->ns->ext_reply ($id, @msg)
1796}
1797
1798=item $player->ext_msg ($type, @msg)
1799
1800Sends an ext event to the client.
1801
1802=cut
1803
1804sub ext_msg($$@) {
1805 my ($self, $type, @msg) = @_;
1806
1807 $self->ns->ext_msg ($type, @msg);
1808}
1809
1810=head3 cf::region
1811
1812=over 4
1813
1814=cut
1815
1816package cf::region;
1817
1818=item cf::region::find_by_path $path
1819
1820Tries to decuce the likely region for a map knowing only its path.
1821
1822=cut
1823
1824sub find_by_path($) {
1825 my ($path) = @_;
1826
1827 $path =~ s/^~[^\/]*//; # skip ~login
1828
1829 my ($match, $specificity);
1830
1831 for my $region (list) {
1832 if ($region->{match} && $path =~ $region->{match}) {
1833 ($match, $specificity) = ($region, $region->specificity)
1834 if $region->specificity > $specificity;
1835 }
1836 }
1837
1838 $match
1839}
1840
1841=back
1842
1843=head3 cf::map
1844
1845=over 4
1846
1847=cut
1848
1849package cf::map;
1850
1851use Fcntl;
1852use Coro::AIO;
1853
1854use overload
1855 '""' => \&as_string,
1856 fallback => 1;
1857
1858our $MAX_RESET = 3600;
1859our $DEFAULT_RESET = 3000;
1860
1861sub generate_random_map {
1862 my ($self, $rmp) = @_;
1863
1864 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1865
1866 # mit "rum" bekleckern, nicht
1867 $self->_create_random_map (
1868 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1869 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1870 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1871 $rmp->{exit_on_final_map},
1872 $rmp->{xsize}, $rmp->{ysize},
1873 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1874 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1875 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1876 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1877 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1878 (cf::region::find $rmp->{region}), $rmp->{custom}
1879 )
1880}
1881
1882=item cf::map->register ($regex, $prio)
1883
1884Register a handler for the map path matching the given regex at the
1885givne priority (higher is better, built-in handlers have priority 0, the
1886default).
1887
1888=cut
1889
1890sub register {
1891 my (undef, $regex, $prio) = @_;
1892 my $pkg = caller;
1893
1894 push @{"$pkg\::ISA"}, __PACKAGE__;
1895
1896 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1897}
1898
1899# also paths starting with '/'
1900$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1901
1902sub thawer_merge {
1903 my ($self, $merge) = @_;
1904
1905 # we have to keep some variables in memory intact
1906 local $self->{path};
1907 local $self->{load_path};
1908
1909 $self->SUPER::thawer_merge ($merge);
1910}
1911
1912sub normalise {
1913 my ($path, $base) = @_;
1914
1915 $path = "$path"; # make sure it's a string
1916
1917 $path =~ s/\.map$//;
1918
1919 # map plan:
1920 #
1921 # /! non-realised random map exit (special hack!)
1922 # {... are special paths that are not being touched
1923 # ?xxx/... are special absolute paths
1924 # ?random/... random maps
1925 # /... normal maps
1926 # ~user/... per-player map of a specific user
1927
1928 $path =~ s/$PATH_SEP/\//go;
1929
1930 # treat it as relative path if it starts with
1931 # something that looks reasonable
1932 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1933 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1934
1935 $base =~ s{[^/]+/?$}{};
1936 $path = "$base/$path";
1937 }
1938
1939 for ($path) {
1940 redo if s{//}{/};
1941 redo if s{/\.?/}{/};
1942 redo if s{/[^/]+/\.\./}{/};
1943 }
1944
1945 $path
1946}
1947
1948sub new_from_path {
1949 my (undef, $path, $base) = @_;
1950
1951 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1952
1953 $path = normalise $path, $base;
1954
1955 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1956 if ($path =~ $EXT_MAP{$pkg}[1]) {
1957 my $self = bless cf::map::new, $pkg;
1958 $self->{path} = $path; $self->path ($path);
1959 $self->init; # pass $1 etc.
1960 return $self;
1961 }
1962 }
1963
1964 Carp::cluck "unable to resolve path '$path' (base '$base')";
1965 ()
1966}
1967
1968sub init {
1969 my ($self) = @_;
1970
1971 $self
1972}
1973
1974sub as_string {
1975 my ($self) = @_;
1976
1977 "$self->{path}"
1978}
1979
1980# the displayed name, this is a one way mapping
1981sub visible_name {
1982 &as_string
1983}
1984
1985# the original (read-only) location
1986sub load_path {
1987 my ($self) = @_;
1988
1989 "$MAPDIR/$self->{path}.map"
1990}
1991
1992# the temporary/swap location
1993sub save_path {
1994 my ($self) = @_;
1995
1996 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1997 "$TMPDIR/$path.map"
1998}
1999
2000# the unique path, undef == no special unique path
2001sub uniq_path {
2002 my ($self) = @_;
2003
2004 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
2005 "$UNIQUEDIR/$path"
2006}
2007
2008sub decay_objects {
2009 my ($self) = @_;
2010
2011 return if $self->{deny_reset};
2012
2013 $self->do_decay_objects;
2014}
2015
2016sub unlink_save {
2017 my ($self) = @_;
2018
2019 utf8::encode (my $save = $self->save_path);
2020 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
2021 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
2022}
2023
2024sub load_header_from($) {
2025 my ($self, $path) = @_;
2026
2027 utf8::encode $path;
2028 my $f = new_from_file cf::object::thawer $path
2029 or return;
2030
2031 $self->_load_header ($f)
2032 or return;
2033
2034 local $MAP_LOADING{$self->{path}} = $self;
2035 $f->resolve_delayed_derefs;
2036
2037 $self->{load_path} = $path;
2038
2039 1
2040}
2041
2042sub load_header_orig {
2043 my ($self) = @_;
2044
2045 $self->load_header_from ($self->load_path)
2046}
2047
2048sub load_header_temp {
2049 my ($self) = @_;
2050
2051 $self->load_header_from ($self->save_path)
2052}
2053
2054sub prepare_temp {
2055 my ($self) = @_;
2056
2057 $self->last_access ((delete $self->{last_access})
2058 || $cf::RUNTIME); #d#
2059 # safety
2060 $self->{instantiate_time} = $cf::RUNTIME
2061 if $self->{instantiate_time} > $cf::RUNTIME;
2062}
2063
2064sub prepare_orig {
2065 my ($self) = @_;
2066
2067 $self->{load_original} = 1;
2068 $self->{instantiate_time} = $cf::RUNTIME;
2069 $self->last_access ($cf::RUNTIME);
2070 $self->instantiate;
2071}
2072
2073sub load_header {
2074 my ($self) = @_;
2075
2076 if ($self->load_header_temp) {
2077 $self->prepare_temp;
2078 } else {
2079 $self->load_header_orig
2080 or return;
2081 $self->prepare_orig;
2082 }
2083
2084 $self->{deny_reset} = 1
2085 if $self->no_reset;
2086
2087 $self->default_region (cf::region::find_by_path $self->{path})
2088 unless $self->default_region;
2089
2090 1
2091}
2092
2093sub find;
2094sub find {
2095 my ($path, $origin) = @_;
2096
2097 cf::cede_to_tick;
2098
2099 $path = normalise $path, $origin && $origin->path;
2100
2101 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2102 my $guard2 = cf::lock_acquire "map_find:$path";
2103
2104 $cf::MAP{$path} || do {
2105 my $map = new_from_path cf::map $path
2106 or return;
2107
2108 $map->{last_save} = $cf::RUNTIME;
2109
2110 $map->load_header
2111 or return;
2112
2113 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2114 # doing this can freeze the server in a sync job, obviously
2115 #$cf::WAIT_FOR_TICK->wait;
2116 undef $guard2;
2117 undef $guard1;
2118 $map->reset;
2119 return find $path;
2120 }
2121
2122 $cf::MAP{$path} = $map
2123 }
2124}
2125
2126sub pre_load { }
2127#sub post_load { } # XS
2128
2129sub load {
2130 my ($self) = @_;
2131
2132 local $self->{deny_reset} = 1; # loading can take a long time
2133
2134 my $path = $self->{path};
2135
2136 {
2137 my $guard = cf::lock_acquire "map_data:$path";
2138
2139 return unless $self->valid;
2140 return unless $self->in_memory == cf::MAP_SWAPPED;
2141
2142 $self->in_memory (cf::MAP_LOADING);
2143
2144 $self->alloc;
2145
2146 $self->pre_load;
2147 cf::cede_to_tick;
2148
2149 my $f = new_from_file cf::object::thawer $self->{load_path};
2150 $f->skip_block;
2151 $self->_load_objects ($f)
2152 or return;
2153
2154 $self->post_load_original
2155 if delete $self->{load_original};
2156
2157 if (my $uniq = $self->uniq_path) {
2158 utf8::encode $uniq;
2159 unless (aio_stat $uniq) {
2160 if (my $f = new_from_file cf::object::thawer $uniq) {
2161 $self->clear_unique_items;
2162 $self->_load_objects ($f);
2163 $f->resolve_delayed_derefs;
2164 }
566 } 2165 }
567 } 2166 }
2167
2168 $f->resolve_delayed_derefs;
2169
2170 cf::cede_to_tick;
2171 # now do the right thing for maps
2172 $self->link_multipart_objects;
2173 $self->difficulty ($self->estimate_difficulty)
2174 unless $self->difficulty;
2175 cf::cede_to_tick;
2176
2177 unless ($self->{deny_activate}) {
2178 $self->decay_objects;
2179 $self->fix_auto_apply;
2180 $self->update_buttons;
2181 cf::cede_to_tick;
2182 $self->activate;
2183 }
2184
2185 $self->{last_save} = $cf::RUNTIME;
2186 $self->last_access ($cf::RUNTIME);
2187
2188 $self->in_memory (cf::MAP_ACTIVE);
568 }, 2189 }
569 on_save => sub {
570 my ($pl, $path) = @_;
571 2190
572 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) 2191 $self->post_load;
573 for grep %$_, all_objects $pl->ob; 2192}
2193
2194# customize the map for a given player, i.e.
2195# return the _real_ map. used by e.g. per-player
2196# maps to change the path to ~playername/mappath
2197sub customise_for {
2198 my ($self, $ob) = @_;
2199
2200 return find "~" . $ob->name . "/" . $self->{path}
2201 if $self->per_player;
2202
2203# return find "?party/" . $ob->name . "/" . $self->{path}
2204# if $self->per_party;
2205
2206 $self
2207}
2208
2209# find and load all maps in the 3x3 area around a map
2210sub load_neighbours {
2211 my ($map) = @_;
2212
2213 my @neigh; # diagonal neighbours
2214
2215 for (0 .. 3) {
2216 my $neigh = $map->tile_path ($_)
2217 or next;
2218 $neigh = find $neigh, $map
2219 or next;
2220 $neigh->load;
2221
2222 # now find the diagonal neighbours
2223 push @neigh,
2224 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2225 [$neigh->tile_path (($_ + 1) % 4), $neigh];
574 }, 2226 }
575;
576 2227
577############################################################################# 2228 for (grep defined $_->[0], @neigh) {
578# core extensions - in perl 2229 my ($path, $origin) = @$_;
579 2230 my $neigh = find $path, $origin
580=item cf::player::exists $login 2231 or next;
581 2232 $neigh->load;
582Returns true when the given account exists. 2233 }
583
584=cut
585
586sub cf::player::exists($) {
587 cf::player::find $_[0]
588 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
589} 2234}
590 2235
2236sub find_sync {
2237 my ($path, $origin) = @_;
2238
2239 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2240 if $Coro::current == $Coro::main;
2241
2242 find $path, $origin
2243}
2244
2245sub do_load_sync {
2246 my ($map) = @_;
2247
2248 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2249 if $Coro::current == $Coro::main;
2250
2251 $map->load;
2252}
2253
2254our %MAP_PREFETCH;
2255our $MAP_PREFETCHER = undef;
2256
2257sub find_async {
2258 my ($path, $origin, $load) = @_;
2259
2260 $path = normalise $path, $origin && $origin->{path};
2261
2262 if (my $map = $cf::MAP{$path}) {
2263 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2264 }
2265
2266 $MAP_PREFETCH{$path} |= $load;
2267
2268 $MAP_PREFETCHER ||= cf::async {
2269 $Coro::current->{desc} = "map prefetcher";
2270
2271 while (%MAP_PREFETCH) {
2272 while (my ($k, $v) = each %MAP_PREFETCH) {
2273 if (my $map = find $k) {
2274 $map->load if $v;
2275 }
2276
2277 delete $MAP_PREFETCH{$k};
2278 }
2279 }
2280 undef $MAP_PREFETCHER;
2281 };
2282 $MAP_PREFETCHER->prio (6);
2283
2284 ()
2285}
2286
2287# common code, used by both ->save and ->swapout
2288sub _save {
2289 my ($self) = @_;
2290
2291 $self->{last_save} = $cf::RUNTIME;
2292
2293 return unless $self->dirty;
2294
2295 my $save = $self->save_path; utf8::encode $save;
2296 my $uniq = $self->uniq_path; utf8::encode $uniq;
2297
2298 $self->{load_path} = $save;
2299
2300 return if $self->{deny_save};
2301
2302 local $self->{last_access} = $self->last_access;#d#
2303
2304 cf::async {
2305 $Coro::current->{desc} = "map player save";
2306 $_->contr->save for $self->players;
2307 };
2308
2309 cf::get_slot 0.02;
2310
2311 if ($uniq) {
2312 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2313 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2314 } else {
2315 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2316 }
2317}
2318
2319sub save {
2320 my ($self) = @_;
2321
2322 my $lock = cf::lock_acquire "map_data:$self->{path}";
2323
2324 $self->_save;
2325}
2326
2327sub swap_out {
2328 my ($self) = @_;
2329
2330 my $lock = cf::lock_acquire "map_data:$self->{path}";
2331
2332 return if $self->in_memory != cf::MAP_ACTIVE;
2333 return if $self->{deny_save};
2334 return if $self->players;
2335
2336 # first deactivate the map and "unlink" it from the core
2337 $self->deactivate;
2338 $_->clear_links_to ($self) for values %cf::MAP;
2339 $self->in_memory (cf::MAP_SWAPPED);
2340
2341 # then atomically save
2342 $self->_save;
2343
2344 # then free the map
2345 $self->clear;
2346}
2347
2348sub reset_at {
2349 my ($self) = @_;
2350
2351 # TODO: safety, remove and allow resettable per-player maps
2352 return 1e99 if $self->{deny_reset};
2353
2354 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2355 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2356
2357 $time + $to
2358}
2359
2360sub should_reset {
2361 my ($self) = @_;
2362
2363 $self->reset_at <= $cf::RUNTIME
2364}
2365
2366sub reset {
2367 my ($self) = @_;
2368
2369 my $lock = cf::lock_acquire "map_data:$self->{path}";
2370
2371 return if $self->players;
2372
2373 cf::trace "resetting map ", $self->path, "\n";
2374
2375 $self->in_memory (cf::MAP_SWAPPED);
2376
2377 # need to save uniques path
2378 unless ($self->{deny_save}) {
2379 my $uniq = $self->uniq_path; utf8::encode $uniq;
2380
2381 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2382 if $uniq;
2383 }
2384
2385 delete $cf::MAP{$self->path};
2386
2387 $self->deactivate;
2388 $_->clear_links_to ($self) for values %cf::MAP;
2389 $self->clear;
2390
2391 $self->unlink_save;
2392 $self->destroy;
2393}
2394
2395my $nuke_counter = "aaaa";
2396
2397sub nuke {
2398 my ($self) = @_;
2399
2400 {
2401 my $lock = cf::lock_acquire "map_data:$self->{path}";
2402
2403 delete $cf::MAP{$self->path};
2404
2405 $self->unlink_save;
2406
2407 bless $self, "cf::map::wrap";
2408 delete $self->{deny_reset};
2409 $self->{deny_save} = 1;
2410 $self->reset_timeout (1);
2411 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2412
2413 $cf::MAP{$self->path} = $self;
2414 }
2415
2416 $self->reset; # polite request, might not happen
2417}
2418
2419=item $maps = cf::map::tmp_maps
2420
2421Returns an arrayref with all map paths of currently instantiated and saved
2422maps. May block.
2423
2424=cut
2425
2426sub tmp_maps() {
2427 [
2428 map {
2429 utf8::decode $_;
2430 /\.map$/
2431 ? normalise $_
2432 : ()
2433 } @{ aio_readdir $TMPDIR or [] }
2434 ]
2435}
2436
2437=item $maps = cf::map::random_maps
2438
2439Returns an arrayref with all map paths of currently instantiated and saved
2440random maps. May block.
2441
2442=cut
2443
2444sub random_maps() {
2445 [
2446 map {
2447 utf8::decode $_;
2448 /\.map$/
2449 ? normalise "?random/$_"
2450 : ()
2451 } @{ aio_readdir $RANDOMDIR or [] }
2452 ]
2453}
2454
2455=item cf::map::unique_maps
2456
2457Returns an arrayref of paths of all shared maps that have
2458instantiated unique items. May block.
2459
2460=cut
2461
2462sub unique_maps() {
2463 [
2464 map {
2465 utf8::decode $_;
2466 s/\.map$//; # TODO future compatibility hack
2467 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2468 ? ()
2469 : normalise $_
2470 } @{ aio_readdir $UNIQUEDIR or [] }
2471 ]
2472}
2473
2474=item cf::map::static_maps
2475
2476Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2477file in the shared directory excluding F</styles> and F</editor>). May
2478block.
2479
2480=cut
2481
2482sub static_maps() {
2483 my @dirs = "";
2484 my @maps;
2485
2486 while (@dirs) {
2487 my $dir = shift @dirs;
2488
2489 next if $dir eq "/styles" || $dir eq "/editor";
2490
2491 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2492 or return;
2493
2494 for (@$files) {
2495 s/\.map$// or next;
2496 utf8::decode $_;
2497 push @maps, "$dir/$_";
2498 }
2499
2500 push @dirs, map "$dir/$_", @$dirs;
2501 }
2502
2503 \@maps
2504}
2505
2506=back
2507
2508=head3 cf::object
2509
2510=cut
2511
2512package cf::object;
2513
2514=over 4
2515
2516=item $ob->inv_recursive
2517
2518Returns the inventory of the object I<and> their inventories, recursively,
2519but I<not> the object itself.
2520
2521=cut
2522
2523sub inv_recursive_;
2524sub inv_recursive_ {
2525 map { $_, inv_recursive_ $_->inv } @_
2526}
2527
2528sub inv_recursive {
2529 inv_recursive_ inv $_[0]
2530}
2531
2532=item $ref = $ob->ref
2533
2534Creates and returns a persistent reference to an object that can be stored as a string.
2535
2536=item $ob = cf::object::deref ($refstring)
2537
2538returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2539even if the object actually exists. May block.
2540
2541=cut
2542
2543sub deref {
2544 my ($ref) = @_;
2545
2546 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2547 my ($uuid, $name) = ($1, $2);
2548 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2549 or return;
2550 $pl->ob->uuid eq $uuid
2551 or return;
2552
2553 $pl->ob
2554 } else {
2555 warn "$ref: cannot resolve object reference\n";
2556 undef
2557 }
2558}
2559
2560package cf;
2561
2562=back
2563
2564=head3 cf::object::player
2565
2566=over 4
2567
591=item $player->reply ($npc, $msg[, $flags]) 2568=item $player_object->reply ($npc, $msg[, $flags])
592 2569
593Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2570Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
594can be C<undef>. Does the right thing when the player is currently in a 2571can be C<undef>. Does the right thing when the player is currently in a
595dialogue with the given NPC character. 2572dialogue with the given NPC character.
596 2573
597=cut 2574=cut
598 2575
2576our $SAY_CHANNEL = {
2577 id => "say",
2578 title => "Map",
2579 reply => "say ",
2580 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2581};
2582
2583our $CHAT_CHANNEL = {
2584 id => "chat",
2585 title => "Chat",
2586 reply => "chat ",
2587 tooltip => "Player chat and shouts, global to the server.",
2588};
2589
599# rough implementation of a future "reply" method that works 2590# rough implementation of a future "reply" method that works
600# with dialog boxes. 2591# with dialog boxes.
2592#TODO: the first argument must go, split into a $npc->reply_to ( method
601sub cf::object::player::reply($$$;$) { 2593sub cf::object::player::reply($$$;$) {
602 my ($self, $npc, $msg, $flags) = @_; 2594 my ($self, $npc, $msg, $flags) = @_;
603 2595
604 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2596 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
605 2597
606 if ($self->{record_replies}) { 2598 if ($self->{record_replies}) {
607 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2599 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2600
608 } else { 2601 } else {
2602 my $pl = $self->contr;
2603
2604 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2605 my $dialog = $pl->{npc_dialog};
2606 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2607
2608 } else {
609 $msg = $npc->name . " says: $msg" if $npc; 2609 $msg = $npc->name . " says: $msg" if $npc;
610 $self->message ($msg, $flags); 2610 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2611 }
2612 }
2613}
2614
2615=item $object->send_msg ($channel, $msg, $color, [extra...])
2616
2617=cut
2618
2619sub cf::object::send_msg {
2620 my $pl = shift->contr
2621 or return;
2622 $pl->send_msg (@_);
2623}
2624
2625=item $player_object->may ("access")
2626
2627Returns wether the given player is authorized to access resource "access"
2628(e.g. "command_wizcast").
2629
2630=cut
2631
2632sub cf::object::player::may {
2633 my ($self, $access) = @_;
2634
2635 $self->flag (cf::FLAG_WIZ) ||
2636 (ref $cf::CFG{"may_$access"}
2637 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
2638 : $cf::CFG{"may_$access"})
2639}
2640
2641=item $player_object->enter_link
2642
2643Freezes the player and moves him/her to a special map (C<{link}>).
2644
2645The player should be reasonably safe there for short amounts of time (e.g.
2646for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2647though, as the player cannot control the character while it is on the link
2648map.
2649
2650Will never block.
2651
2652=item $player_object->leave_link ($map, $x, $y)
2653
2654Moves the player out of the special C<{link}> map onto the specified
2655map. If the map is not valid (or omitted), the player will be moved back
2656to the location he/she was before the call to C<enter_link>, or, if that
2657fails, to the emergency map position.
2658
2659Might block.
2660
2661=cut
2662
2663sub link_map {
2664 unless ($LINK_MAP) {
2665 $LINK_MAP = cf::map::find "{link}"
2666 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2667 $LINK_MAP->load;
2668 }
2669
2670 $LINK_MAP
2671}
2672
2673sub cf::object::player::enter_link {
2674 my ($self) = @_;
2675
2676 $self->deactivate_recursive;
2677
2678 ++$self->{_link_recursion};
2679
2680 return if UNIVERSAL::isa $self->map, "ext::map_link";
2681
2682 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2683 if $self->map && $self->map->{path} ne "{link}";
2684
2685 $self->enter_map ($LINK_MAP || link_map, 3, 3);
2686}
2687
2688sub cf::object::player::leave_link {
2689 my ($self, $map, $x, $y) = @_;
2690
2691 return unless $self->contr->active;
2692
2693 my $link_pos = delete $self->{_link_pos};
2694
2695 unless ($map) {
2696 # restore original map position
2697 ($map, $x, $y) = @{ $link_pos || [] };
2698 $map = cf::map::find $map;
2699
2700 unless ($map) {
2701 ($map, $x, $y) = @$EMERGENCY_POSITION;
2702 $map = cf::map::find $map
2703 or die "FATAL: cannot load emergency map\n";
2704 }
2705 }
2706
2707 ($x, $y) = (-1, -1)
2708 unless (defined $x) && (defined $y);
2709
2710 # use -1 or undef as default coordinates, not 0, 0
2711 ($x, $y) = ($map->enter_x, $map->enter_y)
2712 if $x <= 0 && $y <= 0;
2713
2714 $map->load;
2715 $map->load_neighbours;
2716
2717 return unless $self->contr->active;
2718
2719 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2720 if ($self->enter_map ($map, $x, $y)) {
2721 # entering was successful
2722 delete $self->{_link_recursion};
2723 # only activate afterwards, to support waiting in hooks
2724 $self->activate_recursive;
2725 }
2726
2727}
2728
2729=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2730
2731Moves the player to the given map-path and coordinates by first freezing
2732her, loading and preparing them map, calling the provided $check callback
2733that has to return the map if sucecssful, and then unfreezes the player on
2734the new (success) or old (failed) map position. In either case, $done will
2735be called at the end of this process.
2736
2737Note that $check will be called with a potentially non-loaded map, so if
2738it needs a loaded map it has to call C<< ->load >>.
2739
2740=cut
2741
2742our $GOTOGEN;
2743
2744sub cf::object::player::goto {
2745 my ($self, $path, $x, $y, $check, $done) = @_;
2746
2747 if ($self->{_link_recursion} >= $MAX_LINKS) {
2748 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2749 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2750 ($path, $x, $y) = @$EMERGENCY_POSITION;
2751 }
2752
2753 # do generation counting so two concurrent goto's will be executed in-order
2754 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2755
2756 $self->enter_link;
2757
2758 (async {
2759 $Coro::current->{desc} = "player::goto $path $x $y";
2760
2761 # *tag paths override both path and x|y
2762 if ($path =~ /^\*(.*)$/) {
2763 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2764 my $ob = $obs[rand @obs];
2765
2766 # see if we actually can go there
2767 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2768 $ob = $obs[rand @obs];
2769 } else {
2770 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2771 }
2772 # else put us there anyways for now #d#
2773
2774 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2775 } else {
2776 ($path, $x, $y) = (undef, undef, undef);
2777 }
2778 }
2779
2780 my $map = eval {
2781 my $map = defined $path ? cf::map::find $path : undef;
2782
2783 if ($map) {
2784 $map = $map->customise_for ($self);
2785 $map = $check->($map, $x, $y, $self) if $check && $map;
2786 } else {
2787 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2788 }
2789
2790 $map
2791 };
2792
2793 if ($@) {
2794 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2795 LOG llevError | logBacktrace, Carp::longmess $@;
2796 }
2797
2798 if ($gen == $self->{_goto_generation}) {
2799 delete $self->{_goto_generation};
2800 $self->leave_link ($map, $x, $y);
2801 }
2802
2803 $done->($self) if $done;
2804 })->prio (1);
2805}
2806
2807=item $player_object->enter_exit ($exit_object)
2808
2809=cut
2810
2811sub parse_random_map_params {
2812 my ($spec) = @_;
2813
2814 my $rmp = { # defaults
2815 xsize => (cf::rndm 15, 40),
2816 ysize => (cf::rndm 15, 40),
2817 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2818 #layout => string,
611 } 2819 };
612}
613 2820
2821 for (split /\n/, $spec) {
2822 my ($k, $v) = split /\s+/, $_, 2;
2823
2824 $rmp->{lc $k} = $v if (length $k) && (length $v);
2825 }
2826
2827 $rmp
2828}
2829
2830sub prepare_random_map {
2831 my ($exit) = @_;
2832
2833 # all this does is basically replace the /! path by
2834 # a new random map path (?random/...) with a seed
2835 # that depends on the exit object
2836
2837 my $rmp = parse_random_map_params $exit->msg;
2838
2839 if ($exit->map) {
2840 $rmp->{region} = $exit->region->name;
2841 $rmp->{origin_map} = $exit->map->path;
2842 $rmp->{origin_x} = $exit->x;
2843 $rmp->{origin_y} = $exit->y;
2844
2845 $exit->map->touch;
2846 }
2847
2848 $rmp->{random_seed} ||= $exit->random_seed;
2849
2850 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2851 my $md5 = Digest::MD5::md5_hex $data;
2852 my $meta = "$RANDOMDIR/$md5.meta";
2853
2854 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2855 aio_write $fh, 0, (length $data), $data, 0;
2856 undef $fh;
2857 aio_rename "$meta~", $meta;
2858
2859 my $slaying = "?random/$md5";
2860
2861 if ($exit->valid) {
2862 $exit->slaying ("?random/$md5");
2863 $exit->msg (undef);
2864 }
2865 }
2866}
2867
2868sub cf::object::player::enter_exit {
2869 my ($self, $exit) = @_;
2870
2871 return unless $self->type == cf::PLAYER;
2872
2873 $self->enter_link;
2874
2875 (async {
2876 $Coro::current->{desc} = "enter_exit";
2877
2878 unless (eval {
2879 $self->deactivate_recursive; # just to be sure
2880
2881 # random map handling
2882 {
2883 my $guard = cf::lock_acquire "exit_prepare:$exit";
2884
2885 prepare_random_map $exit
2886 if $exit->slaying eq "/!";
2887 }
2888
2889 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2890 my $x = $exit->stats->hp;
2891 my $y = $exit->stats->sp;
2892
2893 $self->goto ($map, $x, $y);
2894
2895 # if exit is damned, update players death & WoR home-position
2896 $self->contr->savebed ($map, $x, $y)
2897 if $exit->flag (cf::FLAG_DAMNED);
2898
2899 1
2900 }) {
2901 $self->message ("Something went wrong deep within the deliantra server. "
2902 . "I'll try to bring you back to the map you were before. "
2903 . "Please report this to the dungeon master!",
2904 cf::NDI_UNIQUE | cf::NDI_RED);
2905
2906 error "ERROR in enter_exit: $@";
2907 $self->leave_link;
2908 }
2909 })->prio (1);
2910}
2911
2912=head3 cf::client
2913
2914=over 4
2915
2916=item $client->send_drawinfo ($text, $flags)
2917
2918Sends a drawinfo packet to the client. Circumvents output buffering so
2919should not be used under normal circumstances.
2920
2921=cut
2922
2923sub cf::client::send_drawinfo {
2924 my ($self, $text, $flags) = @_;
2925
2926 utf8::encode $text;
2927 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2928}
2929
2930=item $client->send_big_packet ($pkt)
2931
2932Like C<send_packet>, but tries to compress large packets, and fragments
2933them as required.
2934
2935=cut
2936
2937our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2938
2939sub cf::client::send_big_packet {
2940 my ($self, $pkt) = @_;
2941
2942 # try lzf for large packets
2943 $pkt = "lzf " . Compress::LZF::compress $pkt
2944 if 1024 <= length $pkt and $self->{can_lzf};
2945
2946 # split very large packets
2947 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2948 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2949 $pkt = "frag";
2950 }
2951
2952 $self->send_packet ($pkt);
2953}
2954
2955=item $client->send_msg ($channel, $msg, $color, [extra...])
2956
2957Send a drawinfo or msg packet to the client, formatting the msg for the
2958client if neccessary. C<$type> should be a string identifying the type of
2959the message, with C<log> being the default. If C<$color> is negative, suppress
2960the message unless the client supports the msg packet.
2961
2962=cut
2963
2964# non-persistent channels (usually the info channel)
2965our %CHANNEL = (
2966 "c/motd" => {
2967 id => "infobox",
2968 title => "MOTD",
2969 reply => undef,
2970 tooltip => "The message of the day",
2971 },
2972 "c/identify" => {
2973 id => "infobox",
2974 title => "Identify",
2975 reply => undef,
2976 tooltip => "Items recently identified",
2977 },
2978 "c/examine" => {
2979 id => "infobox",
2980 title => "Examine",
2981 reply => undef,
2982 tooltip => "Signs and other items you examined",
2983 },
2984 "c/shopinfo" => {
2985 id => "infobox",
2986 title => "Shop Info",
2987 reply => undef,
2988 tooltip => "What your bargaining skill tells you about the shop",
2989 },
2990 "c/book" => {
2991 id => "infobox",
2992 title => "Book",
2993 reply => undef,
2994 tooltip => "The contents of a note or book",
2995 },
2996 "c/lookat" => {
2997 id => "infobox",
2998 title => "Look",
2999 reply => undef,
3000 tooltip => "What you saw there",
3001 },
3002 "c/who" => {
3003 id => "infobox",
3004 title => "Players",
3005 reply => undef,
3006 tooltip => "Shows players who are currently online",
3007 },
3008 "c/body" => {
3009 id => "infobox",
3010 title => "Body Parts",
3011 reply => undef,
3012 tooltip => "Shows which body parts you posess and are available",
3013 },
3014 "c/statistics" => {
3015 id => "infobox",
3016 title => "Statistics",
3017 reply => undef,
3018 tooltip => "Shows your primary statistics",
3019 },
3020 "c/skills" => {
3021 id => "infobox",
3022 title => "Skills",
3023 reply => undef,
3024 tooltip => "Shows your experience per skill and item power",
3025 },
3026 "c/shopitems" => {
3027 id => "infobox",
3028 title => "Shop Items",
3029 reply => undef,
3030 tooltip => "Shows the items currently for sale in this shop",
3031 },
3032 "c/resistances" => {
3033 id => "infobox",
3034 title => "Resistances",
3035 reply => undef,
3036 tooltip => "Shows your resistances",
3037 },
3038 "c/pets" => {
3039 id => "infobox",
3040 title => "Pets",
3041 reply => undef,
3042 tooltip => "Shows information abotu your pets/a specific pet",
3043 },
3044 "c/perceiveself" => {
3045 id => "infobox",
3046 title => "Perceive Self",
3047 reply => undef,
3048 tooltip => "You gained detailed knowledge about yourself",
3049 },
3050 "c/uptime" => {
3051 id => "infobox",
3052 title => "Uptime",
3053 reply => undef,
3054 tooltip => "How long the server has been running since last restart",
3055 },
3056 "c/mapinfo" => {
3057 id => "infobox",
3058 title => "Map Info",
3059 reply => undef,
3060 tooltip => "Information related to the maps",
3061 },
3062 "c/party" => {
3063 id => "party",
3064 title => "Party",
3065 reply => "gsay ",
3066 tooltip => "Messages and chat related to your party",
3067 },
3068 "c/death" => {
3069 id => "death",
3070 title => "Death",
3071 reply => undef,
3072 tooltip => "Reason for and more info about your most recent death",
3073 },
3074 "c/say" => $SAY_CHANNEL,
3075 "c/chat" => $CHAT_CHANNEL,
3076);
3077
3078sub cf::client::send_msg {
3079 my ($self, $channel, $msg, $color, @extra) = @_;
3080
3081 $msg = $self->pl->expand_cfpod ($msg)
3082 unless $color & cf::NDI_VERBATIM;
3083
3084 $color &= cf::NDI_CLIENT_MASK; # just in case...
3085
3086 # check predefined channels, for the benefit of C
3087 if ($CHANNEL{$channel}) {
3088 $channel = $CHANNEL{$channel};
3089
3090 $self->ext_msg (channel_info => $channel);
3091 $channel = $channel->{id};
3092
3093 } elsif (ref $channel) {
3094 # send meta info to client, if not yet sent
3095 unless (exists $self->{channel}{$channel->{id}}) {
3096 $self->{channel}{$channel->{id}} = $channel;
3097 $self->ext_msg (channel_info => $channel);
3098 }
3099
3100 $channel = $channel->{id};
3101 }
3102
3103 return unless @extra || length $msg;
3104
3105 # default colour, mask it out
3106 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3107 if $color & cf::NDI_DEF;
3108
3109 my $pkt = "msg "
3110 . $self->{json_coder}->encode (
3111 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3112 );
3113
3114 $self->send_big_packet ($pkt);
3115}
3116
3117=item $client->ext_msg ($type, @msg)
3118
3119Sends an ext event to the client.
3120
3121=cut
3122
3123sub cf::client::ext_msg($$@) {
3124 my ($self, $type, @msg) = @_;
3125
3126 if ($self->extcmd == 2) {
3127 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3128 } elsif ($self->extcmd == 1) { # TODO: remove
3129 push @msg, msgtype => "event_$type";
3130 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3131 }
3132}
3133
614=item $player->ext_reply ($msgid, $msgtype, %msg) 3134=item $client->ext_reply ($msgid, @msg)
615 3135
616Sends an ext reply to the player. 3136Sends an ext reply to the client.
617 3137
618=cut 3138=cut
619 3139
620sub cf::player::ext_reply($$$%) { 3140sub cf::client::ext_reply($$@) {
621 my ($self, $id, %msg) = @_; 3141 my ($self, $id, @msg) = @_;
622 3142
623 $msg{msgid} = $id; 3143 if ($self->extcmd == 2) {
624 3144 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
625 $self->send ("ext " . to_json \%msg); 3145 } elsif ($self->extcmd == 1) {
3146 #TODO: version 1, remove
3147 unshift @msg, msgtype => "reply", msgid => $id;
3148 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3149 }
626} 3150}
627 3151
628############################################################################# 3152=item $success = $client->query ($flags, "text", \&cb)
629# map scripting support 3153
3154Queues a query to the client, calling the given callback with
3155the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
3156C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
3157
3158Queries can fail, so check the return code. Or don't, as queries will
3159become reliable at some point in the future.
3160
3161=cut
3162
3163sub cf::client::query {
3164 my ($self, $flags, $text, $cb) = @_;
3165
3166 return unless $self->state == ST_PLAYING
3167 || $self->state == ST_SETUP
3168 || $self->state == ST_CUSTOM;
3169
3170 $self->state (ST_CUSTOM);
3171
3172 utf8::encode $text;
3173 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
3174
3175 $self->send_packet ($self->{query_queue}[0][0])
3176 if @{ $self->{query_queue} } == 1;
3177
3178 1
3179}
3180
3181cf::client->attach (
3182 on_connect => sub {
3183 my ($ns) = @_;
3184
3185 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3186 },
3187 on_reply => sub {
3188 my ($ns, $msg) = @_;
3189
3190 # this weird shuffling is so that direct followup queries
3191 # get handled first
3192 my $queue = delete $ns->{query_queue}
3193 or return; # be conservative, not sure how that can happen, but we saw a crash here
3194
3195 (shift @$queue)->[1]->($msg);
3196 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
3197
3198 push @{ $ns->{query_queue} }, @$queue;
3199
3200 if (@{ $ns->{query_queue} } == @$queue) {
3201 if (@$queue) {
3202 $ns->send_packet ($ns->{query_queue}[0][0]);
3203 } else {
3204 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
3205 }
3206 }
3207 },
3208 on_exticmd => sub {
3209 my ($ns, $buf) = @_;
3210
3211 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3212
3213 if (ref $msg) {
3214 my ($type, $reply, @payload) =
3215 "ARRAY" eq ref $msg
3216 ? @$msg
3217 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3218
3219 my @reply;
3220
3221 if (my $cb = $EXTICMD{$type}) {
3222 @reply = $cb->($ns, @payload);
3223 }
3224
3225 $ns->ext_reply ($reply, @reply)
3226 if $reply;
3227
3228 } else {
3229 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3230 }
3231
3232 cf::override;
3233 },
3234);
3235
3236=item $client->async (\&cb)
3237
3238Create a new coroutine, running the specified callback. The coroutine will
3239be automatically cancelled when the client gets destroyed (e.g. on logout,
3240or loss of connection).
3241
3242=cut
3243
3244sub cf::client::async {
3245 my ($self, $cb) = @_;
3246
3247 my $coro = &Coro::async ($cb);
3248
3249 $coro->on_destroy (sub {
3250 delete $self->{_coro}{$coro+0};
3251 });
3252
3253 $self->{_coro}{$coro+0} = $coro;
3254
3255 $coro
3256}
3257
3258cf::client->attach (
3259 on_client_destroy => sub {
3260 my ($ns) = @_;
3261
3262 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
3263 },
3264);
3265
3266=back
3267
3268
3269=head2 SAFE SCRIPTING
3270
3271Functions that provide a safe environment to compile and execute
3272snippets of perl code without them endangering the safety of the server
3273itself. Looping constructs, I/O operators and other built-in functionality
3274is not available in the safe scripting environment, and the number of
3275functions and methods that can be called is greatly reduced.
3276
3277=cut
630 3278
631our $safe = new Safe "safe"; 3279our $safe = new Safe "safe";
632our $safe_hole = new Safe::Hole; 3280our $safe_hole = new Safe::Hole;
633 3281
634$SIG{FPE} = 'IGNORE'; 3282$SIG{FPE} = 'IGNORE';
635 3283
636$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3284$safe->permit_only (Opcode::opset qw(
3285 :base_core :base_mem :base_orig :base_math :base_loop
3286 grepstart grepwhile mapstart mapwhile
3287 sort time
3288));
637 3289
638# here we export the classes and methods available to script code 3290# here we export the classes and methods available to script code
639 3291
3292=pod
3293
3294The following functions and methods are available within a safe environment:
3295
3296 cf::object
3297 contr pay_amount pay_player map x y force_find force_add destroy
3298 insert remove name archname title slaying race decrease split
3299 value
3300
3301 cf::object::player
3302 player
3303
3304 cf::player
3305 peaceful
3306
3307 cf::map
3308 trigger
3309
3310=cut
3311
640for ( 3312for (
641 ["cf::object" => qw(contr pay_amount pay_player)], 3313 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3314 insert remove inv nrof name archname title slaying race
3315 decrease split destroy change_exp value msg lore send_msg)],
642 ["cf::object::player" => qw(player)], 3316 ["cf::object::player" => qw(player)],
643 ["cf::player" => qw(peaceful)], 3317 ["cf::player" => qw(peaceful send_msg)],
3318 ["cf::map" => qw(trigger)],
644) { 3319) {
645 no strict 'refs';
646 my ($pkg, @funs) = @$_; 3320 my ($pkg, @funs) = @$_;
647 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3321 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
648 for @funs; 3322 for @funs;
649} 3323}
650 3324
3325=over 4
3326
3327=item @retval = safe_eval $code, [var => value, ...]
3328
3329Compiled and executes the given perl code snippet. additional var/value
3330pairs result in temporary local (my) scalar variables of the given name
3331that are available in the code snippet. Example:
3332
3333 my $five = safe_eval '$first + $second', first => 1, second => 4;
3334
3335=cut
3336
651sub safe_eval($;@) { 3337sub safe_eval($;@) {
652 my ($code, %vars) = @_; 3338 my ($code, %vars) = @_;
653 3339
654 my $qcode = $code; 3340 my $qcode = $code;
655 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3341 $qcode =~ s/"/‟/g; # not allowed in #line filenames
656 $qcode =~ s/\n/\\n/g; 3342 $qcode =~ s/\n/\\n/g;
657 3343
3344 %vars = (_dummy => 0) unless %vars;
3345
3346 my @res;
658 local $_; 3347 local $_;
659 local @safe::cf::_safe_eval_args = values %vars;
660 3348
661 my $eval = 3349 my $eval =
662 "do {\n" 3350 "do {\n"
663 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3351 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
664 . "#line 0 \"{$qcode}\"\n" 3352 . "#line 0 \"{$qcode}\"\n"
665 . $code 3353 . $code
666 . "\n}" 3354 . "\n}"
667 ; 3355 ;
668 3356
3357 if ($CFG{safe_eval}) {
669 sub_generation_inc; 3358 sub_generation_inc;
3359 local @safe::cf::_safe_eval_args = values %vars;
670 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3360 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
671 sub_generation_inc; 3361 sub_generation_inc;
3362 } else {
3363 local @cf::_safe_eval_args = values %vars;
3364 @res = wantarray ? eval eval : scalar eval $eval;
3365 }
672 3366
673 if ($@) { 3367 if ($@) {
674 warn "$@"; 3368 warn "$@",
675 warn "while executing safe code '$code'\n"; 3369 "while executing safe code '$code'\n",
676 warn "with arguments " . (join " ", %vars) . "\n"; 3370 "with arguments " . (join " ", %vars) . "\n";
677 } 3371 }
678 3372
679 wantarray ? @res : $res[0] 3373 wantarray ? @res : $res[0]
680} 3374}
3375
3376=item cf::register_script_function $function => $cb
3377
3378Register a function that can be called from within map/npc scripts. The
3379function should be reasonably secure and should be put into a package name
3380like the extension.
3381
3382Example: register a function that gets called whenever a map script calls
3383C<rent::overview>, as used by the C<rent> extension.
3384
3385 cf::register_script_function "rent::overview" => sub {
3386 ...
3387 };
3388
3389=cut
681 3390
682sub register_script_function { 3391sub register_script_function {
683 my ($fun, $cb) = @_; 3392 my ($fun, $cb) = @_;
684 3393
685 no strict 'refs'; 3394 $fun = "safe::$fun" if $CFG{safe_eval};
686 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3395 *$fun = $safe_hole->wrap ($cb);
687} 3396}
3397
3398=back
3399
3400=cut
688 3401
689############################################################################# 3402#############################################################################
690# the server's main() 3403# the server's init and main functions
3404
3405sub load_facedata($) {
3406 my ($path) = @_;
3407
3408 # HACK to clear player env face cache, we need some signal framework
3409 # for this (global event?)
3410 %ext::player_env::MUSIC_FACE_CACHE = ();
3411
3412 my $enc = JSON::XS->new->utf8->canonical->relaxed;
3413
3414 trace "loading facedata from $path\n";
3415
3416 0 < aio_load $path, my $facedata
3417 or die "$path: $!";
3418
3419 $facedata = Coro::Storable::thaw $facedata;
3420
3421 $facedata->{version} == 2
3422 or cf::cleanup "$path: version mismatch, cannot proceed.";
3423
3424 # patch in the exptable
3425 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3426 $facedata->{resource}{"res/exp_table"} = {
3427 type => FT_RSRC,
3428 data => $exp_table,
3429 hash => (Digest::MD5::md5 $exp_table),
3430 };
3431 cf::cede_to_tick;
3432
3433 {
3434 my $faces = $facedata->{faceinfo};
3435
3436 while (my ($face, $info) = each %$faces) {
3437 my $idx = (cf::face::find $face) || cf::face::alloc $face;
3438
3439 cf::face::set_visibility $idx, $info->{visibility};
3440 cf::face::set_magicmap $idx, $info->{magicmap};
3441 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3442 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
3443
3444 cf::cede_to_tick;
3445 }
3446
3447 while (my ($face, $info) = each %$faces) {
3448 next unless $info->{smooth};
3449
3450 my $idx = cf::face::find $face
3451 or next;
3452
3453 if (my $smooth = cf::face::find $info->{smooth}) {
3454 cf::face::set_smooth $idx, $smooth;
3455 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3456 } else {
3457 error "smooth face '$info->{smooth}' not found for face '$face'";
3458 }
3459
3460 cf::cede_to_tick;
3461 }
3462 }
3463
3464 {
3465 my $anims = $facedata->{animinfo};
3466
3467 while (my ($anim, $info) = each %$anims) {
3468 cf::anim::set $anim, $info->{frames}, $info->{facings};
3469 cf::cede_to_tick;
3470 }
3471
3472 cf::anim::invalidate_all; # d'oh
3473 }
3474
3475 {
3476 my $res = $facedata->{resource};
3477
3478 while (my ($name, $info) = each %$res) {
3479 if (defined $info->{type}) {
3480 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3481
3482 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3483 cf::face::set_type $idx, $info->{type};
3484 } else {
3485 $RESOURCE{$name} = $info; # unused
3486 }
3487
3488 cf::cede_to_tick;
3489 }
3490 }
3491
3492 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3493
3494 1
3495}
3496
3497register_exticmd fx_want => sub {
3498 my ($ns, $want) = @_;
3499
3500 while (my ($k, $v) = each %$want) {
3501 $ns->fx_want ($k, $v);
3502 }
3503};
3504
3505sub load_resource_file($) {
3506 my $guard = lock_acquire "load_resource_file";
3507
3508 my $status = load_resource_file_ $_[0];
3509 get_slot 0.1, 100;
3510 cf::arch::commit_load;
3511
3512 $status
3513}
3514
3515sub reload_regions {
3516 # HACK to clear player env face cache, we need some signal framework
3517 # for this (global event?)
3518 %ext::player_env::MUSIC_FACE_CACHE = ();
3519
3520 load_resource_file "$MAPDIR/regions"
3521 or die "unable to load regions file\n";
3522
3523 for (cf::region::list) {
3524 $_->{match} = qr/$_->{match}/
3525 if exists $_->{match};
3526 }
3527}
3528
3529sub reload_facedata {
3530 load_facedata "$DATADIR/facedata"
3531 or die "unable to load facedata\n";
3532}
3533
3534sub reload_archetypes {
3535 load_resource_file "$DATADIR/archetypes"
3536 or die "unable to load archetypes\n";
3537}
3538
3539sub reload_treasures {
3540 load_resource_file "$DATADIR/treasures"
3541 or die "unable to load treasurelists\n";
3542}
3543
3544sub reload_sound {
3545 trace "loading sound config from $DATADIR/sound\n";
3546
3547 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3548 or die "$DATADIR/sound $!";
3549
3550 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3551
3552 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3553 my $sound = $soundconf->{compat}[$_]
3554 or next;
3555
3556 my $face = cf::face::find "sound/$sound->[1]";
3557 cf::sound::set $sound->[0] => $face;
3558 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3559 }
3560
3561 while (my ($k, $v) = each %{$soundconf->{event}}) {
3562 my $face = cf::face::find "sound/$v";
3563 cf::sound::set $k => $face;
3564 }
3565}
3566
3567sub reload_resources {
3568 trace "reloading resource files...\n";
3569
3570 reload_exp_table;
3571 reload_materials;
3572 reload_facedata;
3573 reload_sound;
3574 reload_archetypes;
3575 reload_regions;
3576 reload_treasures;
3577
3578 trace "finished reloading resource files\n";
3579}
3580
3581sub reload_config {
3582 trace "reloading config file...\n";
3583
3584 0 < aio_load "$CONFDIR/config", my $config
3585 or die "$CONFDIR/config: $!";
3586
3587 utf8::decode $config;
3588 *CFG = yaml_load $config;
3589
3590 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
3591
3592 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3593 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3594
3595 if (exists $CFG{mlockall}) {
3596 eval {
3597 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3598 and die "WARNING: m(un)lockall failed: $!\n";
3599 };
3600 warn $@ if $@;
3601 }
3602}
3603
3604sub pidfile() {
3605 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3606 or die "$PIDFILE: $!";
3607 flock $fh, &Fcntl::LOCK_EX
3608 or die "$PIDFILE: flock: $!";
3609 $fh
3610}
3611
3612# make sure only one server instance is running at any one time
3613sub atomic {
3614 my $fh = pidfile;
3615
3616 my $pid = <$fh>;
3617 kill 9, $pid if $pid > 0;
3618
3619 seek $fh, 0, 0;
3620 print $fh $$;
3621}
3622
3623sub main_loop {
3624 trace "EV::loop starting\n";
3625 if (1) {
3626 EV::loop;
3627 }
3628 trace "EV::loop returned\n";
3629 goto &main_loop unless $REALLY_UNLOOP;
3630}
691 3631
692sub main { 3632sub main {
693 Event::loop; 3633 cf::init_globals; # initialise logging
3634
3635 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3636 LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3637 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3638 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3639
3640 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3641
3642 # we must not ever block the main coroutine
3643 local $Coro::idle = sub {
3644 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3645 (async {
3646 $Coro::current->{desc} = "IDLE BUG HANDLER";
3647 EV::loop EV::LOOP_ONESHOT;
3648 })->prio (Coro::PRIO_MAX);
3649 };
3650
3651 evthread_start IO::AIO::poll_fileno;
3652
3653 cf::sync_job {
3654 cf::incloader::init ();
3655
3656 cf::init_anim;
3657 cf::init_attackmess;
3658 cf::init_dynamic;
3659
3660 cf::load_settings;
3661
3662 reload_resources;
3663 reload_config;
3664 db_init;
3665
3666 cf::init_uuid;
3667 cf::init_signals;
3668 cf::init_skills;
3669
3670 cf::init_beforeplay;
3671
3672 atomic;
3673
3674 load_extensions;
3675
3676 utime time, time, $RUNTIMEFILE;
3677
3678 # no (long-running) fork's whatsoever before this point(!)
3679 use POSIX ();
3680 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3681
3682 cf::_post_init 0;
3683 };
3684
3685 cf::object::thawer::errors_are_fatal 0;
3686 info "parse errors in files are no longer fatal from this point on.\n";
3687
3688 my $free_main; $free_main = EV::idle sub {
3689 undef $free_main;
3690 undef &main; # free gobs of memory :)
3691 };
3692
3693 goto &main_loop;
694} 3694}
695 3695
696############################################################################# 3696#############################################################################
697# initialisation 3697# initialisation and cleanup
698 3698
699register "<global>", __PACKAGE__; 3699# install some emergency cleanup handlers
3700BEGIN {
3701 our %SIGWATCHER = ();
3702 for my $signal (qw(INT HUP TERM)) {
3703 $SIGWATCHER{$signal} = AE::signal $signal, sub {
3704 cf::cleanup "SIG$signal";
3705 };
3706 }
3707}
700 3708
701unshift @INC, $LIBDIR; 3709sub write_runtime_sync {
3710 my $t0 = AE::time;
702 3711
703load_extensions; 3712 # first touch the runtime file to show we are still running:
3713 # the fsync below can take a very very long time.
704 3714
705$TICK_WATCHER = Event->timer ( 3715 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
706 prio => 1, 3716
707 at => $NEXT_TICK || 1, 3717 my $guard = cf::lock_acquire "write_runtime";
708 cb => sub { 3718
3719 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3720 or return;
3721
3722 my $value = $cf::RUNTIME + 90 + 10;
3723 # 10 is the runtime save interval, for a monotonic clock
3724 # 60 allows for the watchdog to kill the server.
3725
3726 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3727 and return;
3728
3729 # always fsync - this file is important
3730 aio_fsync $fh
3731 and return;
3732
3733 # touch it again to show we are up-to-date
3734 aio_utime $fh, undef, undef;
3735
3736 close $fh
3737 or return;
3738
3739 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3740 and return;
3741
3742 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3743
3744 1
3745}
3746
3747our $uuid_lock;
3748our $uuid_skip;
3749
3750sub write_uuid_sync($) {
3751 $uuid_skip ||= $_[0];
3752
3753 return if $uuid_lock;
3754 local $uuid_lock = 1;
3755
3756 my $uuid = "$LOCALDIR/uuid";
3757
3758 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3759 or return;
3760
3761 my $value = uuid_seq uuid_cur;
3762
3763 unless ($value) {
3764 info "cowardly refusing to write zero uuid value!\n";
3765 return;
3766 }
3767
3768 my $value = uuid_str $value + $uuid_skip;
3769 $uuid_skip = 0;
3770
3771 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3772 and return;
3773
3774 # always fsync - this file is important
3775 aio_fsync $fh
3776 and return;
3777
3778 close $fh
3779 or return;
3780
3781 aio_rename "$uuid~", $uuid
3782 and return;
3783
3784 trace "uuid file written ($value).\n";
3785
3786 1
3787
3788}
3789
3790sub write_uuid($$) {
3791 my ($skip, $sync) = @_;
3792
3793 $sync ? write_uuid_sync $skip
3794 : async { write_uuid_sync $skip };
3795}
3796
3797sub emergency_save() {
3798 my $freeze_guard = cf::freeze_mainloop;
3799
3800 info "emergency_perl_save: enter\n";
3801
3802 # this is a trade-off: we want to be very quick here, so
3803 # save all maps without fsync, and later call a global sync
3804 # (which in turn might be very very slow)
3805 local $USE_FSYNC = 0;
3806
3807 cf::sync_job {
3808 cf::write_runtime_sync; # external watchdog should not bark
3809
3810 # use a peculiar iteration method to avoid tripping on perl
3811 # refcount bugs in for. also avoids problems with players
3812 # and maps saved/destroyed asynchronously.
3813 info "emergency_perl_save: begin player save\n";
3814 for my $login (keys %cf::PLAYER) {
3815 my $pl = $cf::PLAYER{$login} or next;
3816 $pl->valid or next;
3817 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3818 $pl->save;
3819 }
3820 info "emergency_perl_save: end player save\n";
3821
3822 cf::write_runtime_sync; # external watchdog should not bark
3823
3824 info "emergency_perl_save: begin map save\n";
3825 for my $path (keys %cf::MAP) {
3826 my $map = $cf::MAP{$path} or next;
3827 $map->valid or next;
3828 $map->save;
3829 }
3830 info "emergency_perl_save: end map save\n";
3831
3832 cf::write_runtime_sync; # external watchdog should not bark
3833
3834 info "emergency_perl_save: begin database checkpoint\n";
3835 BDB::db_env_txn_checkpoint $DB_ENV;
3836 info "emergency_perl_save: end database checkpoint\n";
3837
3838 info "emergency_perl_save: begin write uuid\n";
3839 write_uuid_sync 1;
3840 info "emergency_perl_save: end write uuid\n";
3841
3842 cf::write_runtime_sync; # external watchdog should not bark
3843
3844 trace "emergency_perl_save: syncing database to disk";
3845 BDB::db_env_txn_checkpoint $DB_ENV;
3846
3847 info "emergency_perl_save: starting sync\n";
3848 IO::AIO::aio_sync sub {
3849 info "emergency_perl_save: finished sync\n";
3850 };
3851
3852 cf::write_runtime_sync; # external watchdog should not bark
3853
3854 trace "emergency_perl_save: flushing outstanding aio requests";
3855 while (IO::AIO::nreqs || BDB::nreqs) {
3856 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3857 }
3858
3859 cf::write_runtime_sync; # external watchdog should not bark
3860 };
3861
3862 info "emergency_perl_save: leave\n";
3863}
3864
3865sub post_cleanup {
3866 my ($make_core) = @_;
3867
3868 IO::AIO::flush;
3869
3870 error Carp::longmess "post_cleanup backtrace"
3871 if $make_core;
3872
3873 my $fh = pidfile;
3874 unlink $PIDFILE if <$fh> == $$;
3875}
3876
3877# a safer delete_package, copied from Symbol
3878sub clear_package($) {
3879 my $pkg = shift;
3880
3881 # expand to full symbol table name if needed
3882 unless ($pkg =~ /^main::.*::$/) {
3883 $pkg = "main$pkg" if $pkg =~ /^::/;
3884 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3885 $pkg .= '::' unless $pkg =~ /::$/;
3886 }
3887
3888 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3889 my $stem_symtab = *{$stem}{HASH};
3890
3891 defined $stem_symtab and exists $stem_symtab->{$leaf}
3892 or return;
3893
3894 # clear all symbols
3895 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3896 for my $name (keys %$leaf_symtab) {
3897 _gv_clear *{"$pkg$name"};
3898# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3899 }
3900}
3901
3902sub do_reload_perl() {
3903 # can/must only be called in main
3904 unless (in_main) {
3905 error "can only reload from main coroutine";
3906 return;
3907 }
3908
3909 return if $RELOAD++;
3910
3911 my $t1 = AE::time;
3912
3913 while ($RELOAD) {
3914 cf::get_slot 0.1, -1, "reload_perl";
3915 info "perl_reload: reloading...";
3916
3917 trace "perl_reload: entering sync_job";
3918
3919 cf::sync_job {
3920 #cf::emergency_save;
3921
3922 trace "perl_reload: cancelling all extension coros";
3923 $_->cancel for values %EXT_CORO;
3924 %EXT_CORO = ();
3925
3926 trace "perl_reload: removing commands";
3927 %COMMAND = ();
3928
3929 trace "perl_reload: removing ext/exti commands";
3930 %EXTCMD = ();
3931 %EXTICMD = ();
3932
3933 trace "perl_reload: unloading/nuking all extensions";
3934 for my $pkg (@EXTS) {
3935 trace "... unloading $pkg";
3936
3937 if (my $cb = $pkg->can ("unload")) {
3938 eval {
3939 $cb->($pkg);
3940 1
3941 } or error "$pkg unloaded, but with errors: $@";
3942 }
3943
3944 trace "... clearing $pkg";
3945 clear_package $pkg;
3946 }
3947
3948 trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
3949 while (my ($k, $v) = each %INC) {
3950 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3951
3952 trace "... unloading $k";
3953 delete $INC{$k};
3954
3955 $k =~ s/\.pm$//;
3956 $k =~ s/\//::/g;
3957
3958 if (my $cb = $k->can ("unload_module")) {
3959 $cb->();
3960 }
3961
3962 clear_package $k;
3963 }
3964
3965 trace "perl_reload: getting rid of safe::, as good as possible";
3966 clear_package "safe::$_"
3967 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3968
3969 trace "perl_reload: unloading cf.pm \"a bit\"";
3970 delete $INC{"cf.pm"};
3971 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3972
3973 # don't, removes xs symbols, too,
3974 # and global variables created in xs
3975 #clear_package __PACKAGE__;
3976
3977 info "perl_reload: unload completed, starting to reload now";
3978
3979 trace "perl_reload: reloading cf.pm";
3980 require cf;
3981 cf::_connect_to_perl_1;
3982
3983 trace "perl_reload: loading config and database again";
3984 cf::reload_config;
3985
3986 trace "perl_reload: loading extensions";
3987 cf::load_extensions;
3988
3989 if ($REATTACH_ON_RELOAD) {
3990 trace "perl_reload: reattaching attachments to objects/players";
3991 _global_reattach; # objects, sockets
3992 trace "perl_reload: reattaching attachments to maps";
3993 reattach $_ for values %MAP;
3994 trace "perl_reload: reattaching attachments to players";
3995 reattach $_ for values %PLAYER;
3996 }
3997
3998 cf::_post_init 1;
3999
4000 trace "perl_reload: leaving sync_job";
4001
4002 1
4003 } or do {
4004 error $@;
4005 cf::cleanup "perl_reload: error, exiting.";
4006 };
4007
4008 --$RELOAD;
4009 }
4010
4011 $t1 = AE::time - $t1;
4012 info "perl_reload: completed in ${t1}s\n";
4013};
4014
4015our $RELOAD_WATCHER; # used only during reload
4016
4017sub reload_perl() {
4018 # doing reload synchronously and two reloads happen back-to-back,
4019 # coro crashes during coro_state_free->destroy here.
4020
4021 $RELOAD_WATCHER ||= cf::async {
4022 Coro::AIO::aio_wait cache_extensions;
4023
4024 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
4025 do_reload_perl;
4026 undef $RELOAD_WATCHER;
4027 };
4028 };
4029}
4030
4031register_command "reload" => sub {
4032 my ($who, $arg) = @_;
4033
4034 if ($who->flag (FLAG_WIZ)) {
4035 $who->message ("reloading server.");
4036 async {
4037 $Coro::current->{desc} = "perl_reload";
4038 reload_perl;
4039 };
4040 }
4041};
4042
4043#############################################################################
4044
4045my $bug_warning = 0;
4046
4047our @WAIT_FOR_TICK;
4048our @WAIT_FOR_TICK_BEGIN;
4049
4050sub wait_for_tick() {
4051 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4052
4053 my $signal = new Coro::Signal;
4054 push @WAIT_FOR_TICK, $signal;
4055 $signal->wait;
4056}
4057
4058sub wait_for_tick_begin() {
4059 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4060
4061 my $signal = new Coro::Signal;
4062 push @WAIT_FOR_TICK_BEGIN, $signal;
4063 $signal->wait;
4064}
4065
4066sub tick {
4067 if ($Coro::current != $Coro::main) {
4068 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
4069 unless ++$bug_warning > 10;
4070 return;
4071 }
4072
709 cf::server_tick; # one server iteration 4073 cf::server_tick; # one server iteration
710 4074
711 my $NOW = Event::time; 4075 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
712 $NEXT_TICK += $TICK;
713 4076
714 # if we are delayed by four ticks, skip them all 4077 if ($NOW >= $NEXT_RUNTIME_WRITE) {
715 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; 4078 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
716 4079 Coro::async_pool {
717 $TICK_WATCHER->at ($NEXT_TICK); 4080 $Coro::current->{desc} = "runtime saver";
718 $TICK_WATCHER->start; 4081 write_runtime_sync
4082 or error "ERROR: unable to write runtime file: $!";
4083 };
719 }, 4084 }
720); 4085
4086 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4087 $sig->send;
4088 }
4089 while (my $sig = shift @WAIT_FOR_TICK) {
4090 $sig->send;
4091 }
4092
4093 $LOAD = ($NOW - $TICK_START) / $TICK;
4094 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4095
4096 if (0) {
4097 if ($NEXT_TICK) {
4098 my $jitter = $TICK_START - $NEXT_TICK;
4099 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4100 debug "jitter $JITTER\n";#d#
4101 }
4102 }
4103}
4104
4105{
4106 # configure BDB
4107
4108 BDB::min_parallel 16;
4109 BDB::max_poll_reqs $TICK * 0.1;
4110 $AnyEvent::BDB::WATCHER->priority (1);
4111
4112 unless ($DB_ENV) {
4113 $DB_ENV = BDB::db_env_create;
4114 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4115 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4116 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4117 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4118 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
4119
4120 cf::sync_job {
4121 eval {
4122 BDB::db_env_open
4123 $DB_ENV,
4124 $BDBDIR,
4125 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
4126 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
4127 0666;
4128
4129 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
4130 };
4131
4132 cf::cleanup "db_env_open(db): $@" if $@;
4133 };
4134 }
4135
4136 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
4137 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
4138 };
4139 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
4140 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
4141 };
4142 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4143 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4144 };
4145}
4146
4147{
4148 # configure IO::AIO
4149
4150 IO::AIO::min_parallel 8;
4151 IO::AIO::max_poll_time $TICK * 0.1;
4152 undef $AnyEvent::AIO::WATCHER;
4153}
4154
4155my $_log_backtrace;
4156
4157sub _log_backtrace {
4158 my ($msg, @addr) = @_;
4159
4160 $msg =~ s/\n//;
4161
4162 # limit the # of concurrent backtraces
4163 if ($_log_backtrace < 2) {
4164 ++$_log_backtrace;
4165 my $perl_bt = Carp::longmess $msg;
4166 async {
4167 $Coro::current->{desc} = "abt $msg";
4168
4169 my @bt = fork_call {
4170 @addr = map { sprintf "%x", $_ } @addr;
4171 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4172 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4173 or die "addr2line: $!";
4174
4175 my @funcs;
4176 my @res = <$fh>;
4177 chomp for @res;
4178 while (@res) {
4179 my ($func, $line) = splice @res, 0, 2, ();
4180 push @funcs, "[$func] $line";
4181 }
4182
4183 @funcs
4184 };
4185
4186 LOG llevInfo, "[ABT] $perl_bt\n";
4187 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4188 LOG llevInfo, "[ABT] $_\n" for @bt;
4189 --$_log_backtrace;
4190 };
4191 } else {
4192 LOG llevInfo, "[ABT] $msg\n";
4193 LOG llevInfo, "[ABT] [suppressed]\n";
4194 }
4195}
4196
4197# load additional modules
4198require "cf/$_.pm" for @EXTRA_MODULES;
4199cf::_connect_to_perl_2;
4200
4201END { cf::emergency_save }
721 4202
7221 42031
723 4204

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