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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.94 by root, Thu Dec 21 23:02:54 2006 UTC vs.
Revision 1.559 by root, Sat Feb 26 12:50:27 2011 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 ();
10use IO::AIO (); 58use IO::AIO ();
11use YAML::Syck ();
12use Time::HiRes; 59use Time::HiRes;
13use Event; 60use Compress::LZF;
14$Event::Eval = 1; # no idea why this is required, but it is 61use Digest::MD5 ();
15 62
16# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 63AnyEvent::detect;
17$YAML::Syck::ImplicitUnicode = 1;
18 64
19use strict; 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" };
20 78
21sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 79sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
80
81our @ORIG_INC;
22 82
23our %COMMAND = (); 83our %COMMAND = ();
24our %COMMAND_TIME = (); 84our %COMMAND_TIME = ();
85
86our @EXTS = (); # list of extension package names
25our %EXTCMD = (); 87our %EXTCMD = ();
88our %EXTICMD = ();
89our %EXT_CORO = (); # coroutines bound to extensions
90our %EXT_MAP = (); # pluggable maps
26 91
27_init_vars; 92our $RELOAD; # number of reloads so far, non-zero while in reload
28
29our @EVENT; 93our @EVENT;
30our $LIBDIR = datadir . "/ext"; 94our @REFLECT; # set by XS
95our %REFLECT; # set by us
31 96
32our $TICK = MAX_TIME * 1e-6; 97our $CONFDIR = confdir;
33our $TICK_WATCHER; 98
99our $DATADIR = datadir;
100our $LIBDIR = "$DATADIR/ext";
101our $PODDIR = "$DATADIR/pod";
102our $MAPDIR = "$DATADIR/" . mapdir;
103
104our $LOCALDIR = localdir;
105our $TMPDIR = "$LOCALDIR/" . tmpdir;
106our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
107our $PLAYERDIR = "$LOCALDIR/" . playerdir;
108our $RANDOMDIR = "$LOCALDIR/random";
109our $BDBDIR = "$LOCALDIR/db";
110our $PIDFILE = "$LOCALDIR/pid";
111our $RUNTIMEFILE = "$LOCALDIR/runtime";
112
113our %RESOURCE; # unused
114
115our $OUTPUT_RATE_MIN = 3000;
116our $OUTPUT_RATE_MAX = 1000000;
117
118our $MAX_LINKS = 32; # how many chained exits to follow
119our $VERBOSE_IO = 1;
120
121our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
122our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34our $NEXT_TICK; 123our $NEXT_TICK;
124our $USE_FSYNC = 1; # use fsync to write maps - default on
125
126our $BDB_DEADLOCK_WATCHER;
127our $BDB_CHECKPOINT_WATCHER;
128our $BDB_TRICKLE_WATCHER;
129our $DB_ENV;
130
131our @EXTRA_MODULES = qw(pod match mapscript incloader);
35 132
36our %CFG; 133our %CFG;
37 134
38our $UPTIME; $UPTIME ||= time; 135our $UPTIME; $UPTIME ||= time;
136our $RUNTIME;
137our $NOW;
138
139our (%PLAYER, %PLAYER_LOADING); # all users
140our (%MAP, %MAP_LOADING ); # all maps
141our $LINK_MAP; # the special {link} map, which is always available
142
143# used to convert map paths into valid unix filenames by replacing / by ∕
144our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
145
146our $LOAD; # a number between 0 (idle) and 1 (too many objects)
147our $LOADAVG; # same thing, but with alpha-smoothing
148our $JITTER; # average jitter
149our $TICK_START; # for load detecting purposes
150
151our @POST_INIT;
152
153our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
154our $REALLY_UNLOOP; # never set to true, please :)
155
156binmode STDOUT;
157binmode STDERR;
158
159# read virtual server time, if available
160unless ($RUNTIME || !-e $RUNTIMEFILE) {
161 open my $fh, "<", $RUNTIMEFILE
162 or die "unable to read $RUNTIMEFILE file: $!";
163 $RUNTIME = <$fh> + 0.;
164}
165
166eval "sub TICK() { $TICK } 1" or die;
167
168mkdir $_
169 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
170
171our $EMERGENCY_POSITION;
172
173sub cf::map::normalise;
174
175sub in_main() {
176 $Coro::current == $Coro::main
177}
39 178
40############################################################################# 179#############################################################################
41 180
181%REFLECT = ();
182for (@REFLECT) {
183 my $reflect = JSON::XS::decode_json $_;
184 $REFLECT{$reflect->{class}} = $reflect;
185}
186
187# this is decidedly evil
188$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
189
190#############################################################################
191
42=head2 GLOBAL VARIABLES 192=head2 GLOBAL VARIABLES
43 193
44=over 4 194=over 4
45 195
46=item $cf::UPTIME 196=item $cf::UPTIME
47 197
48The timestamp of the server start (so not actually an uptime). 198The timestamp of the server start (so not actually an uptime).
49 199
50=item $cf::LIBDIR 200=item $cf::RUNTIME
51 201
52The perl library directory, where extensions and cf-specific modules can 202The time this server has run, starts at 0 and is increased by $cf::TICK on
53be found. It will be added to C<@INC> automatically. 203every server tick.
204
205=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
206$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
207$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
208
209Various directories - "/etc", read-only install directory, perl-library
210directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
211unique-items directory, player file directory, random maps directory and
212database environment.
213
214=item $cf::NOW
215
216The time of the last (current) server tick.
54 217
55=item $cf::TICK 218=item $cf::TICK
56 219
57The interval between server ticks, in seconds. 220The interval between server ticks, in seconds.
58 221
222=item $cf::LOADAVG
223
224The current CPU load on the server (alpha-smoothed), as a value between 0
225(none) and 1 (overloaded), indicating how much time is spent on processing
226objects per tick. Healthy values are < 0.5.
227
228=item $cf::LOAD
229
230The raw value load value from the last tick.
231
59=item %cf::CFG 232=item %cf::CFG
60 233
61Configuration for the server, loaded from C</etc/crossfire/config>, or 234Configuration for the server, loaded from C</etc/deliantra-server/config>, or
62from wherever your confdir points to. 235from wherever your confdir points to.
63 236
237=item cf::wait_for_tick, cf::wait_for_tick_begin
238
239These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
240returns directly I<after> the tick processing (and consequently, can only wake one thread
241per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
242
243=cut
244
245sub wait_for_tick();
246sub wait_for_tick_begin();
247
248=item @cf::INVOKE_RESULTS
249
250This array contains the results of the last C<invoke ()> call. When
251C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
252that call.
253
254=item %cf::REFLECT
255
256Contains, for each (C++) class name, a hash reference with information
257about object members (methods, scalars, arrays and flags) and other
258metadata, which is useful for introspection.
259
64=back 260=back
65 261
66=cut 262=cut
67 263
68BEGIN { 264sub error(@) { LOG llevError, join "", @_ }
69 *CORE::GLOBAL::warn = sub { 265sub warn (@) { LOG llevWarn , join "", @_ }
266sub info (@) { LOG llevInfo , join "", @_ }
267sub debug(@) { LOG llevDebug, join "", @_ }
268sub trace(@) { LOG llevTrace, join "", @_ }
269
270$Coro::State::WARNHOOK = sub {
70 my $msg = join "", @_; 271 my $msg = join "", @_;
272
71 $msg .= "\n" 273 $msg .= "\n"
72 unless $msg =~ /\n$/; 274 unless $msg =~ /\n$/;
73 275
74 print STDERR "cfperl: $msg"; 276 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
75 LOG llevError, "cfperl: $msg"; 277
76 }; 278 LOG llevWarn, $msg;
77} 279};
280
281$Coro::State::DIEHOOK = sub {
282 return unless $^S eq 0; # "eq", not "=="
283
284 error Carp::longmess $_[0];
285
286 if (in_main) {#d#
287 error "DIEHOOK called in main context, Coro bug?\n";#d#
288 return;#d#
289 }#d#
290
291 # kill coroutine otherwise
292 Coro::terminate
293};
78 294
79@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 295@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 296@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
81@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 297@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
82@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 298@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
83@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 299@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
300@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
84@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 301@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
85 302
86# we bless all objects into (empty) derived classes to force a method lookup 303# we bless all objects into (empty) derived classes to force a method lookup
87# within the Safe compartment. 304# within the Safe compartment.
88for my $pkg (qw( 305for my $pkg (qw(
89 cf::global 306 cf::global cf::attachable
90 cf::object cf::object::player 307 cf::object cf::object::player
91 cf::client cf::player 308 cf::client cf::player
92 cf::arch cf::living 309 cf::arch cf::living
310 cf::map cf::mapspace
93 cf::map cf::party cf::region 311 cf::party cf::region
94)) { 312)) {
95 no strict 'refs';
96 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 313 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
97} 314}
98 315
99$Event::DIED = sub { 316$EV::DIED = sub {
100 warn "error in event callback: @_"; 317 Carp::cluck "error in event callback: @_";
101}; 318};
102 319
103my %ext_pkg; 320#############################################################################
104my @exts;
105my @hook;
106 321
107=head2 UTILITY FUNCTIONS 322=head2 UTILITY FUNCTIONS
108 323
109=over 4 324=over 4
110 325
111=cut 326=item dumpval $ref
112 327
113use JSON::Syck (); # TODO# replace by JSON::PC once working 328=cut
114 329
330sub dumpval {
331 eval {
332 local $SIG{__DIE__};
333 my $d;
334 if (1) {
335 $d = new Data::Dumper([$_[0]], ["*var"]);
336 $d->Terse(1);
337 $d->Indent(2);
338 $d->Quotekeys(0);
339 $d->Useqq(1);
340 #$d->Bless(...);
341 $d->Seen($_[1]) if @_ > 1;
342 $d = $d->Dump();
343 }
344 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
345 $d
346 } || "[unable to dump $_[0]: '$@']";
347}
348
115=item $ref = cf::from_json $json 349=item $ref = cf::decode_json $json
116 350
117Converts a JSON string into the corresponding perl data structure. 351Converts a JSON string into the corresponding perl data structure.
118 352
119=cut
120
121sub from_json($) {
122 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
123 JSON::Syck::Load $_[0]
124}
125
126=item $json = cf::to_json $ref 353=item $json = cf::encode_json $ref
127 354
128Converts a perl data structure into its JSON representation. 355Converts a perl data structure into its JSON representation.
129 356
130=cut 357=cut
131 358
132sub to_json($) { 359our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
133 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 360
134 JSON::Syck::Dump $_[0] 361sub encode_json($) { $json_coder->encode ($_[0]) }
362sub decode_json($) { $json_coder->decode ($_[0]) }
363
364=item $ref = cf::yaml_load $scalar
365
366Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
367
368=cut
369
370sub fork_call(&@);
371
372sub yaml_load($) {
373 fork_call { YAML::XS::Load $_[0] } @_
374}
375
376=item cf::post_init { BLOCK }
377
378Execute the given codeblock, I<after> all extensions have been (re-)loaded,
379but I<before> the server starts ticking again.
380
381The codeblock will have a single boolean argument to indicate whether this
382is a reload or not.
383
384=cut
385
386sub post_init(&) {
387 push @POST_INIT, shift;
388}
389
390sub _post_init {
391 trace "running post_init jobs";
392
393 # run them in parallel...
394
395 my @join;
396
397 while () {
398 push @join, map &Coro::async ($_, 0), @POST_INIT;
399 @POST_INIT = ();
400
401 @join or last;
402
403 (pop @join)->join;
404 }
405}
406
407=item cf::lock_wait $string
408
409Wait until the given lock is available. See cf::lock_acquire.
410
411=item my $lock = cf::lock_acquire $string
412
413Wait until the given lock is available and then acquires it and returns
414a L<Guard> object. If the guard object gets destroyed (goes out of scope,
415for example when the coroutine gets canceled), the lock is automatically
416returned.
417
418Locks are *not* recursive, locking from the same coro twice results in a
419deadlocked coro.
420
421Lock names should begin with a unique identifier (for example, cf::map::find
422uses map_find and cf::map::load uses map_load).
423
424=item $locked = cf::lock_active $string
425
426Return true if the lock is currently active, i.e. somebody has locked it.
427
428=cut
429
430our $LOCKS = new Coro::SemaphoreSet;
431
432sub lock_wait($) {
433 $LOCKS->wait ($_[0]);
434}
435
436sub lock_acquire($) {
437 $LOCKS->guard ($_[0])
438}
439
440sub lock_active($) {
441 $LOCKS->count ($_[0]) < 1
442}
443
444sub freeze_mainloop {
445 tick_inhibit_inc;
446
447 &Guard::guard (\&tick_inhibit_dec);
448}
449
450=item cf::periodic $interval, $cb
451
452Like EV::periodic, but randomly selects a starting point so that the actions
453get spread over time.
454
455=cut
456
457sub periodic($$) {
458 my ($interval, $cb) = @_;
459
460 my $start = rand List::Util::min 180, $interval;
461
462 EV::periodic $start, $interval, 0, $cb
463}
464
465=item cf::get_slot $time[, $priority[, $name]]
466
467Allocate $time seconds of blocking CPU time at priority C<$priority>:
468This call blocks and returns only when you have at least C<$time> seconds
469of cpu time till the next tick. The slot is only valid till the next cede.
470
471The optional C<$name> can be used to identify the job to run. It might be
472used for statistical purposes and should identify the same time-class.
473
474Useful for short background jobs.
475
476=cut
477
478our @SLOT_QUEUE;
479our $SLOT_QUEUE;
480our $SLOT_DECAY = 0.9;
481
482$SLOT_QUEUE->cancel if $SLOT_QUEUE;
483$SLOT_QUEUE = Coro::async {
484 $Coro::current->desc ("timeslot manager");
485
486 my $signal = new Coro::Signal;
487 my $busy;
488
489 while () {
490 next_job:
491
492 my $avail = cf::till_tick;
493
494 for (0 .. $#SLOT_QUEUE) {
495 if ($SLOT_QUEUE[$_][0] <= $avail) {
496 $busy = 0;
497 my $job = splice @SLOT_QUEUE, $_, 1, ();
498 $job->[2]->send;
499 Coro::cede;
500 goto next_job;
501 } else {
502 $SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
503 }
504 }
505
506 if (@SLOT_QUEUE) {
507 # we do not use wait_for_tick() as it returns immediately when tick is inactive
508 push @cf::WAIT_FOR_TICK, $signal;
509 $signal->wait;
510 } else {
511 $busy = 0;
512 Coro::schedule;
513 }
514 }
515};
516
517sub get_slot($;$$) {
518 return if tick_inhibit || $Coro::current == $Coro::main;
519
520 my ($time, $pri, $name) = @_;
521
522 $time = clamp $time, 0.01, $TICK * .6;
523
524 my $sig = new Coro::Signal;
525
526 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
527 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
528 $SLOT_QUEUE->ready;
529 $sig->wait;
530}
531
532=item cf::async { BLOCK }
533
534Currently the same as Coro::async_pool, meaning you cannot use
535C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
536thing you are allowed to do is call C<prio> on it.
537
538=cut
539
540BEGIN { *async = \&Coro::async_pool }
541
542=item cf::sync_job { BLOCK }
543
544The design of Deliantra requires that the main coroutine ($Coro::main)
545is always able to handle events or runnable, as Deliantra is only
546partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
547acceptable.
548
549If it must be done, put the blocking parts into C<sync_job>. This will run
550the given BLOCK in another coroutine while waiting for the result. The
551server will be frozen during this time, so the block should either finish
552fast or be very important.
553
554=cut
555
556sub sync_job(&) {
557 my ($job) = @_;
558
559 if (in_main) {
560 my $time = AE::time;
561
562 # this is the main coro, too bad, we have to block
563 # till the operation succeeds, freezing the server :/
564
565 #LOG llevError, Carp::longmess "sync job";#d#
566
567 my $freeze_guard = freeze_mainloop;
568
569 my $busy = 1;
570 my @res;
571
572 (async {
573 $Coro::current->desc ("sync job coro");
574 @res = eval { $job->() };
575 error $@ if $@;
576 undef $busy;
577 })->prio (Coro::PRIO_MAX);
578
579 while ($busy) {
580 if (Coro::nready) {
581 Coro::cede_notself;
582 } else {
583 EV::loop EV::LOOP_ONESHOT;
584 }
585 }
586
587 my $time = AE::time - $time;
588
589 $TICK_START += $time; # do not account sync jobs to server load
590
591 wantarray ? @res : $res[0]
592 } else {
593 # we are in another coroutine, how wonderful, everything just works
594
595 $job->()
596 }
597}
598
599=item $coro = cf::async_ext { BLOCK }
600
601Like async, but this coro is automatically being canceled when the
602extension calling this is being unloaded.
603
604=cut
605
606sub async_ext(&) {
607 my $cb = shift;
608
609 my $coro = &Coro::async ($cb);
610
611 $coro->on_destroy (sub {
612 delete $EXT_CORO{$coro+0};
613 });
614 $EXT_CORO{$coro+0} = $coro;
615
616 $coro
617}
618
619=item fork_call { }, @args
620
621Executes the given code block with the given arguments in a seperate
622process, returning the results. Everything must be serialisable with
623Coro::Storable. May, of course, block. Note that the executed sub may
624never block itself or use any form of event handling.
625
626=cut
627
628sub post_fork {
629 reset_signals;
630}
631
632sub fork_call(&@) {
633 my ($cb, @args) = @_;
634
635 # we seemingly have to make a local copy of the whole thing,
636 # otherwise perl prematurely frees the stuff :/
637 # TODO: investigate and fix (likely this will be rather laborious)
638
639 my @res = Coro::Util::fork_eval {
640 cf::post_fork;
641 &$cb
642 } @args;
643
644 wantarray ? @res : $res[-1]
645}
646
647sub objinfo {
648 (
649 "counter value" => cf::object::object_count,
650 "objects created" => cf::object::create_count,
651 "objects destroyed" => cf::object::destroy_count,
652 "freelist size" => cf::object::free_count,
653 "allocated objects" => cf::object::objects_size,
654 "active objects" => cf::object::actives_size,
655 )
656}
657
658=item $coin = coin_from_name $name
659
660=cut
661
662our %coin_alias = (
663 "silver" => "silvercoin",
664 "silvercoin" => "silvercoin",
665 "silvercoins" => "silvercoin",
666 "gold" => "goldcoin",
667 "goldcoin" => "goldcoin",
668 "goldcoins" => "goldcoin",
669 "platinum" => "platinacoin",
670 "platinumcoin" => "platinacoin",
671 "platinumcoins" => "platinacoin",
672 "platina" => "platinacoin",
673 "platinacoin" => "platinacoin",
674 "platinacoins" => "platinacoin",
675 "royalty" => "royalty",
676 "royalties" => "royalty",
677);
678
679sub coin_from_name($) {
680 $coin_alias{$_[0]}
681 ? cf::arch::find $coin_alias{$_[0]}
682 : undef
683}
684
685=item $value = cf::db_get $family => $key
686
687Returns a single value from the environment database.
688
689=item cf::db_put $family => $key => $value
690
691Stores the given C<$value> in the family. It can currently store binary
692data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
693
694=item $db = cf::db_table "name"
695
696Create and/or open a new database table. The string must not be "db" and must be unique
697within each server.
698
699=cut
700
701sub db_table($) {
702 cf::error "db_get called from main context"
703 if $Coro::current == $Coro::main;
704
705 my ($name) = @_;
706 my $db = BDB::db_create $DB_ENV;
707
708 eval {
709 $db->set_flags (BDB::CHKSUM);
710
711 utf8::encode $name;
712 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
713 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
714 cf::cleanup "db_open(db): $!" if $!;
715 };
716 cf::cleanup "db_open(db): $@" if $@;
717
718 $db
719}
720
721our $DB;
722
723sub db_init {
724 $DB ||= db_table "db";
725}
726
727sub db_get($$) {
728 my $key = "$_[0]/$_[1]";
729
730 cf::error "db_get called from main context"
731 if $Coro::current == $Coro::main;
732
733 BDB::db_get $DB, undef, $key, my $data;
734
735 $! ? ()
736 : $data
737}
738
739sub db_put($$$) {
740 BDB::dbreq_pri 4;
741 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
742}
743
744=item cf::cache $id => [$paths...], $processversion => $process
745
746Generic caching function that returns the value of the resource $id,
747caching and regenerating as required.
748
749This function can block.
750
751=cut
752
753sub cache {
754 my ($id, $src, $processversion, $process) = @_;
755
756 my $meta =
757 join "\x00",
758 $processversion,
759 map {
760 aio_stat $_
761 and Carp::croak "$_: $!";
762
763 ($_, (stat _)[7,9])
764 } @$src;
765
766 my $dbmeta = db_get cache => "$id/meta";
767 if ($dbmeta ne $meta) {
768 # changed, we may need to process
769
770 my @data;
771 my $md5;
772
773 for (0 .. $#$src) {
774 0 <= aio_load $src->[$_], $data[$_]
775 or Carp::croak "$src->[$_]: $!";
776 }
777
778 # if processing is expensive, check
779 # checksum first
780 if (1) {
781 $md5 =
782 join "\x00",
783 $processversion,
784 map {
785 cf::cede_to_tick;
786 ($src->[$_], Digest::MD5::md5_hex $data[$_])
787 } 0.. $#$src;
788
789
790 my $dbmd5 = db_get cache => "$id/md5";
791 if ($dbmd5 eq $md5) {
792 db_put cache => "$id/meta", $meta;
793
794 return db_get cache => "$id/data";
795 }
796 }
797
798 my $t1 = Time::HiRes::time;
799 my $data = $process->(\@data);
800 my $t2 = Time::HiRes::time;
801
802 info "cache: '$id' processed in ", $t2 - $t1, "s\n";
803
804 db_put cache => "$id/data", $data;
805 db_put cache => "$id/md5" , $md5;
806 db_put cache => "$id/meta", $meta;
807
808 return $data;
809 }
810
811 db_get cache => "$id/data"
812}
813
814=item cf::datalog type => key => value, ...
815
816Log a datalog packet of the given type with the given key-value pairs.
817
818=cut
819
820sub datalog($@) {
821 my ($type, %kv) = @_;
822 info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
135} 823}
136 824
137=back 825=back
138 826
139=cut 827=cut
140 828
141############################################################################# 829#############################################################################
142 830
143=head2 ATTACHABLE OBJECTS 831=head2 ATTACHABLE OBJECTS
144 832
145Many objects in crossfire are so-called attachable objects. That means you can 833Many objects in deliantra are so-called attachable objects. That means you can
146attach callbacks/event handlers (a collection of which is called an "attachment") 834attach callbacks/event handlers (a collection of which is called an "attachment")
147to it. All such attachable objects support the following methods. 835to it. All such attachable objects support the following methods.
148 836
149In the following description, CLASS can be any of C<global>, C<object> 837In the following description, CLASS can be any of C<global>, C<object>
150C<player>, C<client> or C<map> (i.e. the attachable objects in 838C<player>, C<client> or C<map> (i.e. the attachable objects in
151crossfire+). 839Deliantra).
152 840
153=over 4 841=over 4
154 842
155=item $attachable->attach ($attachment, key => $value...) 843=item $attachable->attach ($attachment, key => $value...)
156 844
200=item cf::CLASS::attachment $name, ... 888=item cf::CLASS::attachment $name, ...
201 889
202Register an attachment by C<$name> through which attachable objects of the 890Register an attachment by C<$name> through which attachable objects of the
203given CLASS can refer to this attachment. 891given CLASS can refer to this attachment.
204 892
205Some classes such as crossfire maps and objects can specify attachments 893Some classes such as deliantra maps and objects can specify attachments
206that are attached at load/instantiate time, thus the need for a name. 894that are attached at load/instantiate time, thus the need for a name.
207 895
208These calls expect any number of the following handler/hook descriptions: 896These calls expect any number of the following handler/hook descriptions:
209 897
210=over 4 898=over 4
249 my ($self, $victim) = @_; 937 my ($self, $victim) = @_;
250 ... 938 ...
251 } 939 }
252 } 940 }
253 941
942=item $attachable->valid
943
944Just because you have a perl object does not mean that the corresponding
945C-level object still exists. If you try to access an object that has no
946valid C counterpart anymore you get an exception at runtime. This method
947can be used to test for existence of the C object part without causing an
948exception.
949
254=cut 950=cut
255 951
256# the following variables are defined in .xs and must not be re-created 952# the following variables are defined in .xs and must not be re-created
257our @CB_GLOBAL = (); # registry for all global events 953our @CB_GLOBAL = (); # registry for all global events
954our @CB_ATTACHABLE = (); # registry for all attachables
258our @CB_OBJECT = (); # all objects (should not be used except in emergency) 955our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259our @CB_PLAYER = (); 956our @CB_PLAYER = ();
260our @CB_CLIENT = (); 957our @CB_CLIENT = ();
261our @CB_TYPE = (); # registry for type (cf-object class) based events 958our @CB_TYPE = (); # registry for type (cf-object class) based events
262our @CB_MAP = (); 959our @CB_MAP = ();
263 960
264my %attachment; 961my %attachment;
962
963sub cf::attachable::thawer_merge {
964 # simply override everything except _meta
965 local $_[0]{_meta};
966 %{$_[0]} = %{$_[1]};
967}
265 968
266sub _attach_cb($$$$) { 969sub _attach_cb($$$$) {
267 my ($registry, $event, $prio, $cb) = @_; 970 my ($registry, $event, $prio, $cb) = @_;
268 971
269 use sort 'stable'; 972 use sort 'stable';
272 975
273 @{$registry->[$event]} = sort 976 @{$registry->[$event]} = sort
274 { $a->[0] cmp $b->[0] } 977 { $a->[0] cmp $b->[0] }
275 @{$registry->[$event] || []}, $cb; 978 @{$registry->[$event] || []}, $cb;
276} 979}
980
981# hack
982my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277 983
278# attach handles attaching event callbacks 984# attach handles attaching event callbacks
279# the only thing the caller has to do is pass the correct 985# the only thing the caller has to do is pass the correct
280# registry (== where the callback attaches to). 986# registry (== where the callback attaches to).
281sub _attach { 987sub _attach {
283 989
284 my $object_type; 990 my $object_type;
285 my $prio = 0; 991 my $prio = 0;
286 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 992 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287 993
994 #TODO: get rid of this hack
995 if ($attachable_klass{$klass}) {
996 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
997 }
998
288 while (@arg) { 999 while (@arg) {
289 my $type = shift @arg; 1000 my $type = shift @arg;
290 1001
291 if ($type eq "prio") { 1002 if ($type eq "prio") {
292 $prio = shift @arg; 1003 $prio = shift @arg;
296 $registry = $CB_TYPE[$object_type] ||= []; 1007 $registry = $CB_TYPE[$object_type] ||= [];
297 1008
298 } elsif ($type eq "subtype") { 1009 } elsif ($type eq "subtype") {
299 defined $object_type or Carp::croak "subtype specified without type"; 1010 defined $object_type or Carp::croak "subtype specified without type";
300 my $object_subtype = shift @arg; 1011 my $object_subtype = shift @arg;
301 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 1012 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
302 1013
303 } elsif ($type eq "package") { 1014 } elsif ($type eq "package") {
304 my $pkg = shift @arg; 1015 my $pkg = shift @arg;
305 1016
306 while (my ($name, $id) = each %cb_id) { 1017 while (my ($name, $id) = each %cb_id) {
311 1022
312 } elsif (exists $cb_id{$type}) { 1023 } elsif (exists $cb_id{$type}) {
313 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg; 1024 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
314 1025
315 } elsif (ref $type) { 1026 } elsif (ref $type) {
316 warn "attaching objects not supported, ignoring.\n"; 1027 error "attaching objects not supported, ignoring.\n";
317 1028
318 } else { 1029 } else {
319 shift @arg; 1030 shift @arg;
320 warn "attach argument '$type' not supported, ignoring.\n"; 1031 error "attach argument '$type' not supported, ignoring.\n";
321 } 1032 }
322 } 1033 }
323} 1034}
324 1035
325sub _object_attach { 1036sub _object_attach {
335 _attach $registry, $klass, @attach; 1046 _attach $registry, $klass, @attach;
336 } 1047 }
337 1048
338 $obj->{$name} = \%arg; 1049 $obj->{$name} = \%arg;
339 } else { 1050 } else {
340 warn "object uses attachment '$name' that is not available, postponing.\n"; 1051 info "object uses attachment '$name' which is not available, postponing.\n";
341 } 1052 }
342 1053
343 $obj->{_attachment}{$name} = undef; 1054 $obj->{_attachment}{$name} = undef;
344} 1055}
345 1056
347 if (ref $_[0]) { 1058 if (ref $_[0]) {
348 _object_attach @_; 1059 _object_attach @_;
349 } else { 1060 } else {
350 _attach shift->_attach_registry, @_; 1061 _attach shift->_attach_registry, @_;
351 } 1062 }
1063 _recalc_want;
352}; 1064};
353 1065
354# all those should be optimised 1066# all those should be optimised
355sub cf::attachable::detach { 1067sub cf::attachable::detach {
356 my ($obj, $name) = @_; 1068 my ($obj, $name) = @_;
359 delete $obj->{_attachment}{$name}; 1071 delete $obj->{_attachment}{$name};
360 reattach ($obj); 1072 reattach ($obj);
361 } else { 1073 } else {
362 Carp::croak "cannot, currently, detach class attachments"; 1074 Carp::croak "cannot, currently, detach class attachments";
363 } 1075 }
1076 _recalc_want;
364}; 1077};
365 1078
366sub cf::attachable::attached { 1079sub cf::attachable::attached {
367 my ($obj, $name) = @_; 1080 my ($obj, $name) = @_;
368 1081
369 exists $obj->{_attachment}{$name} 1082 exists $obj->{_attachment}{$name}
370} 1083}
371 1084
372for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 1085for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373 eval "#line " . __LINE__ . " 'cf.pm' 1086 eval "#line " . __LINE__ . " 'cf.pm'
374 sub cf::\L$klass\E::_attach_registry { 1087 sub cf::\L$klass\E::_attach_registry {
375 (\\\@CB_$klass, KLASS_$klass) 1088 (\\\@CB_$klass, KLASS_$klass)
376 } 1089 }
377 1090
383 "; 1096 ";
384 die if $@; 1097 die if $@;
385} 1098}
386 1099
387our $override; 1100our $override;
388our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 1101our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
389 1102
390sub override { 1103sub override {
391 $override = 1; 1104 $override = 1;
392 @invoke_results = (); 1105 @INVOKE_RESULTS = (@_);
393} 1106}
394 1107
395sub do_invoke { 1108sub do_invoke {
396 my $event = shift; 1109 my $event = shift;
397 my $callbacks = shift; 1110 my $callbacks = shift;
398 1111
399 @invoke_results = (); 1112 @INVOKE_RESULTS = ();
400 1113
401 local $override; 1114 local $override;
402 1115
403 for (@$callbacks) { 1116 for (@$callbacks) {
404 eval { &{$_->[1]} }; 1117 eval { &{$_->[1]} };
405 1118
406 if ($@) { 1119 if ($@) {
407 warn "$@";
408 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; 1120 error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
409 override; 1121 override;
410 } 1122 }
411 1123
412 return 1 if $override; 1124 return 1 if $override;
413 } 1125 }
414 1126
415 0 1127 0
416} 1128}
417 1129
418=item $bool = cf::invoke EVENT_GLOBAL_XXX, ... 1130=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
419 1131
420=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
421
422=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
423
424=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...) 1132=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425 1133
426=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428Generate a global/object/player/map-specific event with the given arguments. 1134Generate an object-specific event with the given arguments.
429 1135
430This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be 1136This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
431removed in future versions), and there is no public API to access override 1137removed in future versions), and there is no public API to access override
432results (if you must, access C<@cf::invoke_results> directly). 1138results (if you must, access C<@cf::INVOKE_RESULTS> directly).
433
434=back
435
436=cut
437
438#############################################################################
439
440=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
441
442Attachable objects includes objects, players, clients and maps.
443
444=over 4
445
446=item $object->valid
447
448Just because you have a perl object does not mean that the corresponding
449C-level object still exists. If you try to access an object that has no
450valid C counterpart anymore you get an exception at runtime. This method
451can be used to test for existence of the C object part without causing an
452exception.
453 1139
454=back 1140=back
455 1141
456=cut 1142=cut
457 1143
458############################################################################# 1144#############################################################################
459# object support 1145# object support
460 1146
461sub instantiate { 1147sub _object_equal($$);
1148sub _object_equal($$) {
1149 my ($a, $b) = @_;
1150
1151 return 0 unless (ref $a) eq (ref $b);
1152
1153 if ("HASH" eq ref $a) {
1154 my @ka = keys %$a;
1155 my @kb = keys %$b;
1156
1157 return 0 if @ka != @kb;
1158
1159 for (0 .. $#ka) {
1160 return 0 unless $ka[$_] eq $kb[$_];
1161 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1162 }
1163
1164 } elsif ("ARRAY" eq ref $a) {
1165
1166 return 0 if @$a != @$b;
1167
1168 for (0 .. $#$a) {
1169 return 0 unless _object_equal $a->[$_], $b->[$_];
1170 }
1171
1172 } elsif ($a ne $b) {
1173 return 0;
1174 }
1175
1176 1
1177}
1178
1179our $SLOW_MERGES;#d#
1180sub _can_merge {
462 my ($obj, $data) = @_; 1181 my ($ob1, $ob2) = @_;
463 1182
464 $data = from_json $data; 1183 ++$SLOW_MERGES;#d#
465 1184
466 for (@$data) { 1185 # we do the slow way here
467 my ($name, $args) = @$_; 1186 return _object_equal $ob1, $ob2
468
469 $obj->attach ($name, %{$args || {} });
470 }
471} 1187}
472 1188
473# basically do the same as instantiate, without calling instantiate
474sub reattach { 1189sub reattach {
1190 # basically do the same as instantiate, without calling instantiate
475 my ($obj) = @_; 1191 my ($obj) = @_;
1192
1193 # no longer needed after getting rid of delete_package?
1194 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1195
476 my $registry = $obj->registry; 1196 my $registry = $obj->registry;
477 1197
478 @$registry = (); 1198 @$registry = ();
479 1199
480 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 1200 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
484 for (@$attach) { 1204 for (@$attach) {
485 my ($klass, @attach) = @$_; 1205 my ($klass, @attach) = @$_;
486 _attach $registry, $klass, @attach; 1206 _attach $registry, $klass, @attach;
487 } 1207 }
488 } else { 1208 } else {
489 warn "object uses attachment '$name' that is not available, postponing.\n"; 1209 info "object uses attachment '$name' that is not available, postponing.\n";
490 }
491 }
492}
493
494sub object_freezer_save {
495 my ($filename, $rdata, $objs) = @_;
496
497 if (length $$rdata) {
498 warn sprintf "saving %s (%d,%d)\n",
499 $filename, length $$rdata, scalar @$objs;
500
501 if (open my $fh, ">:raw", "$filename~") {
502 chmod SAVE_MODE, $fh;
503 syswrite $fh, $$rdata;
504 close $fh;
505
506 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
507 chmod SAVE_MODE, $fh;
508 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
509 close $fh;
510 rename "$filename.pst~", "$filename.pst";
511 } else {
512 unlink "$filename.pst";
513 } 1210 }
514
515 rename "$filename~", $filename;
516 } else {
517 warn "FATAL: $filename~: $!\n";
518 }
519 } else {
520 unlink $filename;
521 unlink "$filename.pst";
522 } 1211 }
523} 1212}
524 1213
525sub object_freezer_as_string { 1214cf::attachable->attach (
526 my ($rdata, $objs) = @_;
527
528 use Data::Dumper;
529
530 $$rdata . Dumper $objs
531}
532
533sub object_thawer_load {
534 my ($filename) = @_;
535
536 local $/;
537
538 my $av;
539
540 #TODO: use sysread etc.
541 if (open my $data, "<:raw:perlio", $filename) {
542 $data = <$data>;
543 if (open my $pst, "<:raw:perlio", "$filename.pst") {
544 $av = eval { (Storable::thaw <$pst>)->{objs} };
545 }
546 return ($data, $av);
547 }
548
549 ()
550}
551
552cf::object->attach (
553 prio => -1000000, 1215 prio => -1000000,
1216 on_instantiate => sub {
1217 my ($obj, $data) = @_;
1218
1219 $data = decode_json $data;
1220
1221 for (@$data) {
1222 my ($name, $args) = @$_;
1223
1224 $obj->attach ($name, %{$args || {} });
1225 }
1226 },
1227 on_reattach => \&reattach,
554 on_clone => sub { 1228 on_clone => sub {
555 my ($src, $dst) = @_; 1229 my ($src, $dst) = @_;
556 1230
557 @{$dst->registry} = @{$src->registry}; 1231 @{$dst->registry} = @{$src->registry};
558 1232
561 %{$dst->{_attachment}} = %{$src->{_attachment}} 1235 %{$dst->{_attachment}} = %{$src->{_attachment}}
562 if exists $src->{_attachment}; 1236 if exists $src->{_attachment};
563 }, 1237 },
564); 1238);
565 1239
1240sub object_freezer_save {
1241 my ($filename, $rdata, $objs) = @_;
1242
1243 sync_job {
1244 if (length $$rdata) {
1245 utf8::decode (my $decname = $filename);
1246 trace sprintf "saving %s (%d,%d)\n",
1247 $decname, length $$rdata, scalar @$objs
1248 if $VERBOSE_IO;
1249
1250 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1251 aio_chmod $fh, SAVE_MODE;
1252 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1253 if ($cf::USE_FSYNC) {
1254 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1255 aio_fsync $fh;
1256 }
1257 aio_close $fh;
1258
1259 if (@$objs) {
1260 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1261 aio_chmod $fh, SAVE_MODE;
1262 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1263 aio_write $fh, 0, (length $data), $data, 0;
1264 if ($cf::USE_FSYNC) {
1265 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1266 aio_fsync $fh;
1267 }
1268 aio_close $fh;
1269 aio_rename "$filename.pst~", "$filename.pst";
1270 }
1271 } else {
1272 aio_unlink "$filename.pst";
1273 }
1274
1275 aio_rename "$filename~", $filename;
1276
1277 $filename =~ s%/[^/]+$%%;
1278 aio_pathsync $filename if $cf::USE_FSYNC;
1279 } else {
1280 error "unable to save objects: $filename~: $!\n";
1281 }
1282 } else {
1283 aio_unlink $filename;
1284 aio_unlink "$filename.pst";
1285 }
1286 };
1287}
1288
1289sub object_freezer_as_string {
1290 my ($rdata, $objs) = @_;
1291
1292 use Data::Dumper;
1293
1294 $$rdata . Dumper $objs
1295}
1296
1297sub object_thawer_load {
1298 my ($filename) = @_;
1299
1300 my ($data, $av);
1301
1302 (aio_load $filename, $data) >= 0
1303 or return;
1304
1305 unless (aio_stat "$filename.pst") {
1306 (aio_load "$filename.pst", $av) >= 0
1307 or return;
1308
1309 my $st = eval { Coro::Storable::thaw $av };
1310 $av = $st->{objs};
1311 }
1312
1313 utf8::decode (my $decname = $filename);
1314 trace sprintf "loading %s (%d,%d)\n",
1315 $decname, length $data, scalar @{$av || []}
1316 if $VERBOSE_IO;
1317
1318 ($data, $av)
1319}
1320
1321=head2 COMMAND CALLBACKS
1322
1323=over 4
1324
1325=cut
1326
566############################################################################# 1327#############################################################################
567# command handling &c 1328# command handling &c
568 1329
569=item cf::register_command $name => \&callback($ob,$args); 1330=item cf::register_command $name => \&callback($ob,$args);
570 1331
582 push @{ $COMMAND{$name} }, [$caller, $cb]; 1343 push @{ $COMMAND{$name} }, [$caller, $cb];
583} 1344}
584 1345
585=item cf::register_extcmd $name => \&callback($pl,$packet); 1346=item cf::register_extcmd $name => \&callback($pl,$packet);
586 1347
587Register a callbackf ro execution when the client sends an extcmd packet. 1348Register a callback for execution when the client sends an (synchronous)
1349extcmd packet. Ext commands will be processed in the order they are
1350received by the server, like other user commands. The first argument is
1351the logged-in player. Ext commands can only be processed after a player
1352has logged in successfully.
588 1353
589If the callback returns something, it is sent back as if reply was being 1354If the callback returns something, it is sent back as if reply was being
590called. 1355called.
591 1356
1357=item cf::register_exticmd $name => \&callback($ns,$packet);
1358
1359Register a callback for execution when the client sends an (asynchronous)
1360exticmd packet. Exti commands are processed by the server as soon as they
1361are received, i.e. out of order w.r.t. other commands. The first argument
1362is a client socket. Exti commands can be received anytime, even before
1363log-in.
1364
1365If the callback returns something, it is sent back as if reply was being
1366called.
1367
592=cut 1368=cut
593 1369
594sub register_extcmd { 1370sub register_extcmd {
595 my ($name, $cb) = @_; 1371 my ($name, $cb) = @_;
596 1372
597 my $caller = caller;
598 #warn "registering extcmd '$name' to '$caller'";
599
600 $EXTCMD{$name} = [$cb, $caller]; 1373 $EXTCMD{$name} = $cb;
601} 1374}
1375
1376sub register_exticmd {
1377 my ($name, $cb) = @_;
1378
1379 $EXTICMD{$name} = $cb;
1380}
1381
1382use File::Glob ();
602 1383
603cf::player->attach ( 1384cf::player->attach (
604 on_command => sub { 1385 on_unknown_command => sub {
605 my ($pl, $name, $params) = @_; 1386 my ($pl, $name, $params) = @_;
606 1387
607 my $cb = $COMMAND{$name} 1388 my $cb = $COMMAND{$name}
608 or return; 1389 or return;
609 1390
614 cf::override; 1395 cf::override;
615 }, 1396 },
616 on_extcmd => sub { 1397 on_extcmd => sub {
617 my ($pl, $buf) = @_; 1398 my ($pl, $buf) = @_;
618 1399
619 my $msg = eval { from_json $buf }; 1400 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
620 1401
621 if (ref $msg) { 1402 if (ref $msg) {
1403 my ($type, $reply, @payload) =
1404 "ARRAY" eq ref $msg
1405 ? @$msg
1406 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1407
1408 my @reply;
1409
622 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1410 if (my $cb = $EXTCMD{$type}) {
623 if (my %reply = $cb->[0]->($pl, $msg)) { 1411 @reply = $cb->($pl, @payload);
624 $pl->ext_reply ($msg->{msgid}, %reply);
625 }
626 } 1412 }
1413
1414 $pl->ext_reply ($reply, @reply)
1415 if $reply;
1416
627 } else { 1417 } else {
628 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1418 error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
629 } 1419 }
630 1420
631 cf::override; 1421 cf::override;
632 }, 1422 },
633); 1423);
634 1424
635sub register { 1425# "readahead" all extensions
636 my ($base, $pkg) = @_;
637
638 #TODO
639}
640
641sub load_extension { 1426sub cache_extensions {
642 my ($path) = @_; 1427 my $grp = IO::AIO::aio_group;
643 1428
644 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1429 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
645 my $base = $1; 1430 for (grep /\.ext$/, @{$_[0]}) {
646 my $pkg = $1; 1431 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
647 $pkg =~ s/[^[:word:]]/_/g;
648 $pkg = "ext::$pkg";
649
650 warn "loading '$path' into '$pkg'\n";
651
652 open my $fh, "<:utf8", $path
653 or die "$path: $!";
654
655 my $source =
656 "package $pkg; use strict; use utf8;\n"
657 . "#line 1 \"$path\"\n{\n"
658 . (do { local $/; <$fh> })
659 . "\n};\n1";
660
661 eval $source
662 or die $@ ? "$path: $@\n"
663 : "extension disabled.\n";
664
665 push @exts, $pkg;
666 $ext_pkg{$base} = $pkg;
667
668# no strict 'refs';
669# @{"$pkg\::ISA"} = ext::;
670
671 register $base, $pkg;
672}
673
674sub unload_extension {
675 my ($pkg) = @_;
676
677 warn "removing extension $pkg\n";
678
679 # remove hooks
680 #TODO
681# for my $idx (0 .. $#PLUGIN_EVENT) {
682# delete $hook[$idx]{$pkg};
683# }
684
685 # remove commands
686 for my $name (keys %COMMAND) {
687 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
688
689 if (@cb) {
690 $COMMAND{$name} = \@cb;
691 } else {
692 delete $COMMAND{$name};
693 } 1432 }
694 } 1433 };
695 1434
696 # remove extcmds 1435 $grp
697 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
698 delete $EXTCMD{$name};
699 }
700
701 if (my $cb = $pkg->can ("unload")) {
702 eval {
703 $cb->($pkg);
704 1
705 } or warn "$pkg unloaded, but with errors: $@";
706 }
707
708 Symbol::delete_package $pkg;
709} 1436}
710 1437
711sub load_extensions { 1438sub load_extensions {
1439 info "loading extensions...";
1440
1441 cf::sync_job {
1442 my %todo;
1443
712 for my $ext (<$LIBDIR/*.ext>) { 1444 for my $path (<$LIBDIR/*.ext>) {
713 next unless -r $ext; 1445 next unless -r $path;
714 eval { 1446
715 load_extension $ext; 1447 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1448 my $base = $1;
1449 my $pkg = $1;
1450 $pkg =~ s/[^[:word:]]/_/g;
1451 $pkg = "ext::$pkg";
1452
1453 open my $fh, "<:utf8", $path
1454 or die "$path: $!";
1455
1456 my $source = do { local $/; <$fh> };
1457
1458 my %ext = (
1459 path => $path,
1460 base => $base,
1461 pkg => $pkg,
1462 );
1463
1464 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1465 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1466
1467 $ext{source} =
1468 "package $pkg; use common::sense;\n"
1469 . "#line 1 \"$path\"\n{\n"
1470 . $source
1471 . "\n};\n1";
1472
1473 $todo{$base} = \%ext;
1474 }
1475
1476 my $pass = 0;
1477 my %done;
1478 while (%todo) {
1479 my $progress;
1480
1481 ++$pass;
1482
1483 ext:
1484 while (my ($k, $v) = each %todo) {
1485 for (split /,\s*/, $v->{meta}{depends}) {
1486 next ext
1487 unless exists $done{$_};
1488 }
1489
1490 trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1491
1492 my $active = eval $v->{source};
1493
1494 if (length $@) {
1495 error "$v->{path}: $@\n";
1496
1497 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1498 if exists $v->{meta}{mandatory};
1499
1500 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1501 delete $todo{$k};
1502 } else {
1503 $done{$k} = delete $todo{$k};
1504 push @EXTS, $v->{pkg};
1505 $progress = 1;
1506
1507 info "$v->{base}: extension inactive.\n"
1508 unless $active;
1509 }
716 1 1510 }
717 } or warn "$ext not loaded: $@"; 1511
1512 unless ($progress) {
1513 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1514
1515 while (my ($k, $v) = each %todo) {
1516 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1517 if exists $v->{meta}{mandatory};
1518 }
1519 }
1520 }
718 } 1521 };
719} 1522}
720 1523
721############################################################################# 1524#############################################################################
722# load/save/clean perl data associated with a map
723 1525
724*cf::mapsupport::on_clean = sub { 1526=back
1527
1528=head2 CORE EXTENSIONS
1529
1530Functions and methods that extend core deliantra objects.
1531
1532=cut
1533
1534package cf::player;
1535
1536use Coro::AIO;
1537
1538=head3 cf::player
1539
1540=over 4
1541
1542=item cf::player::num_playing
1543
1544Returns the official number of playing players, as per the Crossfire metaserver rules.
1545
1546=cut
1547
1548sub num_playing {
1549 scalar grep
1550 $_->ob->map
1551 && !$_->hidden
1552 && !$_->ob->flag (cf::FLAG_WIZ),
1553 cf::player::list
1554}
1555
1556=item cf::player::find $login
1557
1558Returns the given player object, loading it if necessary (might block).
1559
1560=cut
1561
1562sub playerdir($) {
1563 "$PLAYERDIR/"
1564 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1565}
1566
1567sub path($) {
1568 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1569
1570 (playerdir $login) . "/playerdata"
1571}
1572
1573sub find_active($) {
1574 $cf::PLAYER{$_[0]}
1575 and $cf::PLAYER{$_[0]}->active
1576 and $cf::PLAYER{$_[0]}
1577}
1578
1579sub exists($) {
725 my ($map) = @_; 1580 my ($login) = @_;
726 1581
727 my $path = $map->tmpname; 1582 $cf::PLAYER{$login}
728 defined $path or return; 1583 or !aio_stat path $login
729
730 unlink "$path.pst";
731};
732
733cf::map->attach (prio => -10000, package => cf::mapsupport::);
734
735#############################################################################
736# load/save perl data associated with player->ob objects
737
738sub all_objects(@) {
739 @_, map all_objects ($_->inv), @_
740} 1584}
741 1585
742# TODO: compatibility cruft, remove when no longer needed 1586sub find($) {
1587 return $cf::PLAYER{$_[0]} || do {
1588 my $login = $_[0];
1589
1590 my $guard = cf::lock_acquire "user_find:$login";
1591
1592 $cf::PLAYER{$_[0]} || do {
1593 # rename old playerfiles to new ones
1594 #TODO: remove when no longer required
1595 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1596 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1597 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1598 aio_unlink +(playerdir $login) . "/$login.pl";
1599
1600 my $f = new_from_file cf::object::thawer path $login
1601 or return;
1602
1603 my $pl = cf::player::load_pl $f
1604 or return;
1605
1606 local $cf::PLAYER_LOADING{$login} = $pl;
1607 $f->resolve_delayed_derefs;
1608 $cf::PLAYER{$login} = $pl
1609 }
1610 }
1611}
1612
743cf::player->attach ( 1613cf::player->attach (
744 on_load => sub { 1614 on_load => sub {
745 my ($pl, $path) = @_; 1615 my ($pl, $path) = @_;
746 1616
747 for my $o (all_objects $pl->ob) { 1617 # restore slots saved in save, below
748 if (my $value = $o->get_ob_key_value ("_perl_data")) { 1618 my $slots = delete $pl->{_slots};
749 $o->set_ob_key_value ("_perl_data");
750 1619
751 %$o = %{ Storable::thaw pack "H*", $value }; 1620 $pl->ob->current_weapon ($slots->[0]);
752 } 1621 $pl->combat_ob ($slots->[1]);
753 } 1622 $pl->ranged_ob ($slots->[2]);
754 }, 1623 },
755); 1624);
756 1625
757############################################################################# 1626sub save($) {
1627 my ($pl) = @_;
758 1628
759=head2 CORE EXTENSIONS 1629 return if $pl->{deny_save};
760 1630
761Functions and methods that extend core crossfire objects. 1631 my $path = path $pl;
1632 my $guard = cf::lock_acquire "user_save:$path";
1633
1634 return if $pl->{deny_save};
1635
1636 aio_mkdir playerdir $pl, 0770;
1637 $pl->{last_save} = $cf::RUNTIME;
1638
1639 cf::get_slot 0.01;
1640
1641 # save slots, to be restored later
1642 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1643
1644 $pl->save_pl ($path);
1645 cf::cede_to_tick;
1646}
1647
1648sub new($) {
1649 my ($login) = @_;
1650
1651 my $self = create;
1652
1653 $self->ob->name ($login);
1654 $self->{deny_save} = 1;
1655
1656 $cf::PLAYER{$login} = $self;
1657
1658 $self
1659}
1660
1661=item $player->send_msg ($channel, $msg, $color, [extra...])
1662
1663=cut
1664
1665sub send_msg {
1666 my $ns = shift->ns
1667 or return;
1668 $ns->send_msg (@_);
1669}
1670
1671=item $pl->quit_character
1672
1673Nukes the player without looking back. If logged in, the connection will
1674be destroyed. May block for a long time.
1675
1676=cut
1677
1678sub quit_character {
1679 my ($pl) = @_;
1680
1681 my $name = $pl->ob->name;
1682
1683 $pl->{deny_save} = 1;
1684 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1685
1686 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1687 $pl->deactivate;
1688
1689 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1690 $pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
1691 ext::highscore::check ($pl->ob);
1692
1693 $pl->ns->destroy if $pl->ns;
1694
1695 my $path = playerdir $pl;
1696 my $temp = "$path~$cf::RUNTIME~deleting~";
1697 aio_rename $path, $temp;
1698 delete $cf::PLAYER{$pl->ob->name};
1699 $pl->destroy;
1700
1701 my $prefix = qr<^~\Q$name\E/>;
1702
1703 # nuke player maps
1704 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1705
1706 IO::AIO::aio_rmtree $temp;
1707}
1708
1709=item $pl->kick
1710
1711Kicks a player out of the game. This destroys the connection.
1712
1713=cut
1714
1715sub kick {
1716 my ($pl, $kicker) = @_;
1717
1718 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1719 $pl->killer ("kicked");
1720 $pl->ns->destroy;
1721}
1722
1723=item cf::player::list_logins
1724
1725Returns am arrayref of all valid playernames in the system, can take a
1726while and may block, so not sync_job-capable, ever.
1727
1728=cut
1729
1730sub list_logins {
1731 my $dirs = aio_readdir $PLAYERDIR
1732 or return [];
1733
1734 my @logins;
1735
1736 for my $login (@$dirs) {
1737 my $path = path $login;
1738
1739 # a .pst is a dead give-away for a valid player
1740 # if no pst file found, open and chekc for blocked users
1741 if (aio_stat "$path.pst") {
1742 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1743 aio_read $fh, 0, 512, my $buf, 0 or next;
1744 $buf !~ /^password -------------$/m or next; # official not-valid tag
1745 }
1746
1747 utf8::decode $login;
1748 push @logins, $login;
1749 }
1750
1751 \@logins
1752}
1753
1754=item $player->maps
1755
1756=item cf::player::maps $login
1757
1758Returns an arrayref of map paths that are private for this
1759player. May block.
1760
1761=cut
1762
1763sub maps($) {
1764 my ($pl) = @_;
1765
1766 $pl = ref $pl ? $pl->ob->name : $pl;
1767
1768 my $files = aio_readdir playerdir $pl
1769 or return;
1770
1771 my @paths;
1772
1773 for (@$files) {
1774 utf8::decode $_;
1775 next if /\.(?:pl|pst)$/;
1776 next unless /^$PATH_SEP/o;
1777
1778 push @paths, cf::map::normalise "~$pl/$_";
1779 }
1780
1781 \@paths
1782}
1783
1784=item $protocol_xml = $player->expand_cfpod ($cfpod)
1785
1786Expand deliantra pod fragments into protocol xml.
1787
1788=item $player->ext_reply ($msgid, @msg)
1789
1790Sends an ext reply to the player.
1791
1792=cut
1793
1794sub ext_reply($$@) {
1795 my ($self, $id, @msg) = @_;
1796
1797 $self->ns->ext_reply ($id, @msg)
1798}
1799
1800=item $player->ext_msg ($type, @msg)
1801
1802Sends an ext event to the client.
1803
1804=cut
1805
1806sub ext_msg($$@) {
1807 my ($self, $type, @msg) = @_;
1808
1809 $self->ns->ext_msg ($type, @msg);
1810}
1811
1812=head3 cf::region
762 1813
763=over 4 1814=over 4
764 1815
765=item cf::player::exists $login
766
767Returns true when the given account exists.
768
769=cut 1816=cut
770 1817
771sub cf::player::exists($) { 1818package cf::region;
772 cf::player::find $_[0] 1819
773 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1820=item cf::region::find_by_path $path
1821
1822Tries to decuce the likely region for a map knowing only its path.
1823
1824=cut
1825
1826sub find_by_path($) {
1827 my ($path) = @_;
1828
1829 $path =~ s/^~[^\/]*//; # skip ~login
1830
1831 my ($match, $specificity);
1832
1833 for my $region (list) {
1834 if ($region->{match} && $path =~ $region->{match}) {
1835 ($match, $specificity) = ($region, $region->specificity)
1836 if $region->specificity > $specificity;
1837 }
1838 }
1839
1840 $match
774} 1841}
1842
1843=back
1844
1845=head3 cf::map
1846
1847=over 4
1848
1849=cut
1850
1851package cf::map;
1852
1853use Fcntl;
1854use Coro::AIO;
1855
1856use overload
1857 '""' => \&as_string,
1858 fallback => 1;
1859
1860our $MAX_RESET = 3600;
1861our $DEFAULT_RESET = 3000;
1862
1863sub generate_random_map {
1864 my ($self, $rmp) = @_;
1865
1866 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1867
1868 $self->_create_random_map ($rmp);
1869}
1870
1871=item cf::map->register ($regex, $prio)
1872
1873Register a handler for the map path matching the given regex at the
1874givne priority (higher is better, built-in handlers have priority 0, the
1875default).
1876
1877=cut
1878
1879sub register {
1880 my (undef, $regex, $prio) = @_;
1881 my $pkg = caller;
1882
1883 push @{"$pkg\::ISA"}, __PACKAGE__;
1884
1885 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1886}
1887
1888# also paths starting with '/'
1889$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1890
1891sub thawer_merge {
1892 my ($self, $merge) = @_;
1893
1894 # we have to keep some variables in memory intact
1895 local $self->{path};
1896 local $self->{load_path};
1897
1898 $self->SUPER::thawer_merge ($merge);
1899}
1900
1901sub normalise {
1902 my ($path, $base) = @_;
1903
1904 $path = "$path"; # make sure it's a string
1905
1906 $path =~ s/\.map$//;
1907
1908 # map plan:
1909 #
1910 # /! non-realised random map exit (special hack!)
1911 # {... are special paths that are not being touched
1912 # ?xxx/... are special absolute paths
1913 # ?random/... random maps
1914 # /... normal maps
1915 # ~user/... per-player map of a specific user
1916
1917 $path =~ s/$PATH_SEP/\//go;
1918
1919 # treat it as relative path if it starts with
1920 # something that looks reasonable
1921 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1922 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1923
1924 $base =~ s{[^/]+/?$}{};
1925 $path = "$base/$path";
1926 }
1927
1928 for ($path) {
1929 redo if s{/\.?/}{/};
1930 redo if s{/[^/]+/\.\./}{/};
1931 }
1932
1933 $path
1934}
1935
1936sub new_from_path {
1937 my (undef, $path, $base) = @_;
1938
1939 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1940
1941 $path = normalise $path, $base;
1942
1943 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1944 if ($path =~ $EXT_MAP{$pkg}[1]) {
1945 my $self = bless cf::map::new, $pkg;
1946 $self->{path} = $path; $self->path ($path);
1947 $self->init; # pass $1 etc.
1948 return $self;
1949 }
1950 }
1951
1952 Carp::cluck "unable to resolve path '$path' (base '$base')";
1953 ()
1954}
1955
1956sub init {
1957 my ($self) = @_;
1958
1959 $self
1960}
1961
1962sub as_string {
1963 my ($self) = @_;
1964
1965 "$self->{path}"
1966}
1967
1968# the displayed name, this is a one way mapping
1969sub visible_name {
1970 &as_string
1971}
1972
1973# the original (read-only) location
1974sub load_path {
1975 my ($self) = @_;
1976
1977 "$MAPDIR/$self->{path}.map"
1978}
1979
1980# the temporary/swap location
1981sub save_path {
1982 my ($self) = @_;
1983
1984 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1985 "$TMPDIR/$path.map"
1986}
1987
1988# the unique path, undef == no special unique path
1989sub uniq_path {
1990 my ($self) = @_;
1991
1992 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1993 "$UNIQUEDIR/$path"
1994}
1995
1996sub decay_objects {
1997 my ($self) = @_;
1998
1999 return if $self->{deny_reset};
2000
2001 $self->do_decay_objects;
2002}
2003
2004sub unlink_save {
2005 my ($self) = @_;
2006
2007 utf8::encode (my $save = $self->save_path);
2008 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
2009 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
2010}
2011
2012sub load_header_from($) {
2013 my ($self, $path) = @_;
2014
2015 utf8::encode $path;
2016 my $f = new_from_file cf::object::thawer $path
2017 or return;
2018
2019 $self->_load_header ($f)
2020 or return;
2021
2022 local $MAP_LOADING{$self->{path}} = $self;
2023 $f->resolve_delayed_derefs;
2024
2025 $self->{load_path} = $path;
2026
2027 1
2028}
2029
2030sub load_header_orig {
2031 my ($self) = @_;
2032
2033 $self->load_header_from ($self->load_path)
2034}
2035
2036sub load_header_temp {
2037 my ($self) = @_;
2038
2039 $self->load_header_from ($self->save_path)
2040}
2041
2042sub prepare_temp {
2043 my ($self) = @_;
2044
2045 $self->last_access ((delete $self->{last_access})
2046 || $cf::RUNTIME); #d#
2047 # safety
2048 $self->{instantiate_time} = $cf::RUNTIME
2049 if $self->{instantiate_time} > $cf::RUNTIME;
2050}
2051
2052sub prepare_orig {
2053 my ($self) = @_;
2054
2055 $self->{load_original} = 1;
2056 $self->{instantiate_time} = $cf::RUNTIME;
2057 $self->last_access ($cf::RUNTIME);
2058 $self->instantiate;
2059}
2060
2061sub load_header {
2062 my ($self) = @_;
2063
2064 if ($self->load_header_temp) {
2065 $self->prepare_temp;
2066 } else {
2067 $self->load_header_orig
2068 or return;
2069 $self->prepare_orig;
2070 }
2071
2072 $self->{deny_reset} = 1
2073 if $self->no_reset;
2074
2075 $self->default_region (cf::region::find_by_path $self->{path})
2076 unless $self->default_region;
2077
2078 1
2079}
2080
2081sub find;
2082sub find {
2083 my ($path, $origin) = @_;
2084
2085 cf::cede_to_tick;
2086
2087 $path = normalise $path, $origin && $origin->path;
2088
2089 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2090 my $guard2 = cf::lock_acquire "map_find:$path";
2091
2092 $cf::MAP{$path} || do {
2093 my $map = new_from_path cf::map $path
2094 or return;
2095
2096 $map->{last_save} = $cf::RUNTIME;
2097
2098 $map->load_header
2099 or return;
2100
2101 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2102 # doing this can freeze the server in a sync job, obviously
2103 #$cf::WAIT_FOR_TICK->wait;
2104 undef $guard2;
2105 undef $guard1;
2106 $map->reset;
2107 return find $path;
2108 }
2109
2110 $cf::MAP{$path} = $map
2111 }
2112}
2113
2114sub pre_load { }
2115#sub post_load { } # XS
2116
2117sub load {
2118 my ($self) = @_;
2119
2120 local $self->{deny_reset} = 1; # loading can take a long time
2121
2122 my $path = $self->{path};
2123
2124 {
2125 my $guard = cf::lock_acquire "map_data:$path";
2126
2127 return unless $self->valid;
2128 return unless $self->in_memory == cf::MAP_SWAPPED;
2129
2130 $self->in_memory (cf::MAP_LOADING);
2131
2132 $self->alloc;
2133
2134 $self->pre_load;
2135 cf::cede_to_tick;
2136
2137 my $f = new_from_file cf::object::thawer $self->{load_path};
2138 $f->skip_block;
2139 $self->_load_objects ($f)
2140 or return;
2141
2142 $self->post_load_original
2143 if delete $self->{load_original};
2144
2145 if (my $uniq = $self->uniq_path) {
2146 utf8::encode $uniq;
2147 unless (aio_stat $uniq) {
2148 if (my $f = new_from_file cf::object::thawer $uniq) {
2149 $self->clear_unique_items;
2150 $self->_load_objects ($f);
2151 $f->resolve_delayed_derefs;
2152 }
2153 }
2154 }
2155
2156 $f->resolve_delayed_derefs;
2157
2158 cf::cede_to_tick;
2159 # now do the right thing for maps
2160 $self->link_multipart_objects;
2161 $self->difficulty ($self->estimate_difficulty)
2162 unless $self->difficulty;
2163 cf::cede_to_tick;
2164
2165 unless ($self->{deny_activate}) {
2166 $self->decay_objects;
2167 $self->fix_auto_apply;
2168 $self->update_buttons;
2169 cf::cede_to_tick;
2170 $self->activate;
2171 }
2172
2173 $self->{last_save} = $cf::RUNTIME;
2174 $self->last_access ($cf::RUNTIME);
2175
2176 $self->in_memory (cf::MAP_ACTIVE);
2177 }
2178
2179 $self->post_load;
2180
2181 1
2182}
2183
2184# customize the map for a given player, i.e.
2185# return the _real_ map. used by e.g. per-player
2186# maps to change the path to ~playername/mappath
2187sub customise_for {
2188 my ($self, $ob) = @_;
2189
2190 return find "~" . $ob->name . "/" . $self->{path}
2191 if $self->per_player;
2192
2193# return find "?party/" . $ob->name . "/" . $self->{path}
2194# if $self->per_party;
2195
2196 $self
2197}
2198
2199# find and load all maps in the 3x3 area around a map
2200sub load_neighbours {
2201 my ($map) = @_;
2202
2203 my @neigh; # diagonal neighbours
2204
2205 for (0 .. 3) {
2206 my $neigh = $map->tile_path ($_)
2207 or next;
2208 $neigh = find $neigh, $map
2209 or next;
2210 $neigh->load;
2211
2212 # now find the diagonal neighbours
2213 push @neigh,
2214 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2215 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2216 }
2217
2218 for (grep defined $_->[0], @neigh) {
2219 my ($path, $origin) = @$_;
2220 my $neigh = find $path, $origin
2221 or next;
2222 $neigh->load;
2223 }
2224}
2225
2226sub find_sync {
2227 my ($path, $origin) = @_;
2228
2229 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2230 if $Coro::current == $Coro::main;
2231
2232 find $path, $origin
2233}
2234
2235sub do_load_sync {
2236 my ($map) = @_;
2237
2238 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2239 if $Coro::current == $Coro::main;
2240
2241 $map->load;
2242}
2243
2244our %MAP_PREFETCH;
2245our $MAP_PREFETCHER = undef;
2246
2247sub find_async {
2248 my ($path, $origin, $load) = @_;
2249
2250 $path = normalise $path, $origin && $origin->{path};
2251
2252 if (my $map = $cf::MAP{$path}) {
2253 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2254 }
2255
2256 $MAP_PREFETCH{$path} |= $load;
2257
2258 $MAP_PREFETCHER ||= cf::async {
2259 $Coro::current->{desc} = "map prefetcher";
2260
2261 while (%MAP_PREFETCH) {
2262 while (my ($k, $v) = each %MAP_PREFETCH) {
2263 if (my $map = find $k) {
2264 $map->load if $v;
2265 }
2266
2267 delete $MAP_PREFETCH{$k};
2268 }
2269 }
2270 undef $MAP_PREFETCHER;
2271 };
2272 $MAP_PREFETCHER->prio (6);
2273
2274 ()
2275}
2276
2277# common code, used by both ->save and ->swapout
2278sub _save {
2279 my ($self) = @_;
2280
2281 $self->{last_save} = $cf::RUNTIME;
2282
2283 return unless $self->dirty;
2284
2285 my $save = $self->save_path; utf8::encode $save;
2286 my $uniq = $self->uniq_path; utf8::encode $uniq;
2287
2288 $self->{load_path} = $save;
2289
2290 return if $self->{deny_save};
2291
2292 local $self->{last_access} = $self->last_access;#d#
2293
2294 cf::async {
2295 $Coro::current->{desc} = "map player save";
2296 $_->contr->save for $self->players;
2297 };
2298
2299 cf::get_slot 0.02;
2300
2301 if ($uniq) {
2302 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2303 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2304 } else {
2305 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2306 }
2307}
2308
2309sub save {
2310 my ($self) = @_;
2311
2312 my $lock = cf::lock_acquire "map_data:$self->{path}";
2313
2314 $self->_save;
2315}
2316
2317sub swap_out {
2318 my ($self) = @_;
2319
2320 my $lock = cf::lock_acquire "map_data:$self->{path}";
2321
2322 return if $self->in_memory != cf::MAP_ACTIVE;
2323 return if $self->{deny_save};
2324 return if $self->players;
2325
2326 # first deactivate the map and "unlink" it from the core
2327 $self->deactivate;
2328 $_->clear_links_to ($self) for values %cf::MAP;
2329 $self->in_memory (cf::MAP_SWAPPED);
2330
2331 # then atomically save
2332 $self->_save;
2333
2334 # then free the map
2335 $self->clear;
2336}
2337
2338sub reset_at {
2339 my ($self) = @_;
2340
2341 # TODO: safety, remove and allow resettable per-player maps
2342 return 1e99 if $self->{deny_reset};
2343
2344 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2345 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2346
2347 $time + $to
2348}
2349
2350sub should_reset {
2351 my ($self) = @_;
2352
2353 $self->reset_at <= $cf::RUNTIME
2354}
2355
2356sub reset {
2357 my ($self) = @_;
2358
2359 my $lock = cf::lock_acquire "map_data:$self->{path}";
2360
2361 return if $self->players;
2362
2363 cf::trace "resetting map ", $self->path, "\n";
2364
2365 $self->in_memory (cf::MAP_SWAPPED);
2366
2367 # need to save uniques path
2368 unless ($self->{deny_save}) {
2369 my $uniq = $self->uniq_path; utf8::encode $uniq;
2370
2371 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2372 if $uniq;
2373 }
2374
2375 delete $cf::MAP{$self->path};
2376
2377 $self->deactivate;
2378 $_->clear_links_to ($self) for values %cf::MAP;
2379 $self->clear;
2380
2381 $self->unlink_save;
2382 $self->destroy;
2383}
2384
2385my $nuke_counter = "aaaa";
2386
2387sub nuke {
2388 my ($self) = @_;
2389
2390 {
2391 my $lock = cf::lock_acquire "map_data:$self->{path}";
2392
2393 delete $cf::MAP{$self->path};
2394
2395 $self->unlink_save;
2396
2397 bless $self, "cf::map::wrap";
2398 delete $self->{deny_reset};
2399 $self->{deny_save} = 1;
2400 $self->reset_timeout (1);
2401 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2402
2403 $cf::MAP{$self->path} = $self;
2404 }
2405
2406 $self->reset; # polite request, might not happen
2407}
2408
2409=item $maps = cf::map::tmp_maps
2410
2411Returns an arrayref with all map paths of currently instantiated and saved
2412maps. May block.
2413
2414=cut
2415
2416sub tmp_maps() {
2417 [
2418 map {
2419 utf8::decode $_;
2420 /\.map$/
2421 ? normalise $_
2422 : ()
2423 } @{ aio_readdir $TMPDIR or [] }
2424 ]
2425}
2426
2427=item $maps = cf::map::random_maps
2428
2429Returns an arrayref with all map paths of currently instantiated and saved
2430random maps. May block.
2431
2432=cut
2433
2434sub random_maps() {
2435 [
2436 map {
2437 utf8::decode $_;
2438 /\.map$/
2439 ? normalise "?random/$_"
2440 : ()
2441 } @{ aio_readdir $RANDOMDIR or [] }
2442 ]
2443}
2444
2445=item cf::map::unique_maps
2446
2447Returns an arrayref of paths of all shared maps that have
2448instantiated unique items. May block.
2449
2450=cut
2451
2452sub unique_maps() {
2453 [
2454 map {
2455 utf8::decode $_;
2456 s/\.map$//; # TODO future compatibility hack
2457 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2458 ? ()
2459 : normalise $_
2460 } @{ aio_readdir $UNIQUEDIR or [] }
2461 ]
2462}
2463
2464=item cf::map::static_maps
2465
2466Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2467file in the shared directory excluding F</styles> and F</editor>). May
2468block.
2469
2470=cut
2471
2472sub static_maps() {
2473 my @dirs = "";
2474 my @maps;
2475
2476 while (@dirs) {
2477 my $dir = shift @dirs;
2478
2479 next if $dir eq "/styles" || $dir eq "/editor";
2480
2481 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2482 or return;
2483
2484 for (@$files) {
2485 s/\.map$// or next;
2486 utf8::decode $_;
2487 push @maps, "$dir/$_";
2488 }
2489
2490 push @dirs, map "$dir/$_", @$dirs;
2491 }
2492
2493 \@maps
2494}
2495
2496=back
2497
2498=head3 cf::object
2499
2500=cut
2501
2502package cf::object;
2503
2504=over 4
2505
2506=item $ob->inv_recursive
2507
2508Returns the inventory of the object I<and> their inventories, recursively,
2509but I<not> the object itself.
2510
2511=cut
2512
2513sub inv_recursive_;
2514sub inv_recursive_ {
2515 map { $_, inv_recursive_ $_->inv } @_
2516}
2517
2518sub inv_recursive {
2519 inv_recursive_ inv $_[0]
2520}
2521
2522=item $ref = $ob->ref
2523
2524Creates and returns a persistent reference to an object that can be stored as a string.
2525
2526=item $ob = cf::object::deref ($refstring)
2527
2528returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2529even if the object actually exists. May block.
2530
2531=cut
2532
2533sub deref {
2534 my ($ref) = @_;
2535
2536 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2537 my ($uuid, $name) = ($1, $2);
2538 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2539 or return;
2540 $pl->ob->uuid eq $uuid
2541 or return;
2542
2543 $pl->ob
2544 } else {
2545 warn "$ref: cannot resolve object reference\n";
2546 undef
2547 }
2548}
2549
2550package cf;
2551
2552=back
2553
2554=head3 cf::object::player
2555
2556=over 4
775 2557
776=item $player_object->reply ($npc, $msg[, $flags]) 2558=item $player_object->reply ($npc, $msg[, $flags])
777 2559
778Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2560Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
779can be C<undef>. Does the right thing when the player is currently in a 2561can be C<undef>. Does the right thing when the player is currently in a
780dialogue with the given NPC character. 2562dialogue with the given NPC character.
781 2563
782=cut 2564=cut
783 2565
2566our $SAY_CHANNEL = {
2567 id => "say",
2568 title => "Map",
2569 reply => "say ",
2570 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2571};
2572
2573our $CHAT_CHANNEL = {
2574 id => "chat",
2575 title => "Chat",
2576 reply => "chat ",
2577 tooltip => "Player chat and shouts, global to the server.",
2578};
2579
784# rough implementation of a future "reply" method that works 2580# rough implementation of a future "reply" method that works
785# with dialog boxes. 2581# with dialog boxes.
2582#TODO: the first argument must go, split into a $npc->reply_to ( method
786sub cf::object::player::reply($$$;$) { 2583sub cf::object::player::reply($$$;$) {
787 my ($self, $npc, $msg, $flags) = @_; 2584 my ($self, $npc, $msg, $flags) = @_;
788 2585
789 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2586 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790 2587
791 if ($self->{record_replies}) { 2588 if ($self->{record_replies}) {
792 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2589 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2590
793 } else { 2591 } else {
2592 my $pl = $self->contr;
2593
2594 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2595 my $dialog = $pl->{npc_dialog};
2596 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2597
2598 } else {
794 $msg = $npc->name . " says: $msg" if $npc; 2599 $msg = $npc->name . " says: $msg" if $npc;
795 $self->message ($msg, $flags); 2600 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2601 }
796 } 2602 }
797} 2603}
798 2604
799=item $player->ext_reply ($msgid, $msgtype, %msg) 2605=item $object->send_msg ($channel, $msg, $color, [extra...])
800 2606
801Sends an ext reply to the player.
802
803=cut 2607=cut
804 2608
805sub cf::player::ext_reply($$$%) { 2609sub cf::object::send_msg {
806 my ($self, $id, %msg) = @_; 2610 my $pl = shift->contr
807 2611 or return;
808 $msg{msgid} = $id; 2612 $pl->send_msg (@_);
809
810 $self->send ("ext " . to_json \%msg);
811} 2613}
812 2614
813=item $player_object->may ("access") 2615=item $player_object->may ("access")
814 2616
815Returns wether the given player is authorized to access resource "access" 2617Returns wether the given player is authorized to access resource "access"
824 (ref $cf::CFG{"may_$access"} 2626 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 2627 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 2628 : $cf::CFG{"may_$access"})
827} 2629}
828 2630
829=cut 2631=item $player_object->enter_link
830 2632
831############################################################################# 2633Freezes the player and moves him/her to a special map (C<{link}>).
2634
2635The player should be reasonably safe there for short amounts of time (e.g.
2636for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2637though, as the player cannot control the character while it is on the link
2638map.
2639
2640Will never block.
2641
2642=item $player_object->leave_link ($map, $x, $y)
2643
2644Moves the player out of the special C<{link}> map onto the specified
2645map. If the map is not valid (or omitted), the player will be moved back
2646to the location he/she was before the call to C<enter_link>, or, if that
2647fails, to the emergency map position.
2648
2649Might block.
2650
2651=cut
2652
2653sub link_map {
2654 unless ($LINK_MAP) {
2655 $LINK_MAP = cf::map::find "{link}"
2656 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2657 $LINK_MAP->load;
2658 }
2659
2660 $LINK_MAP
2661}
2662
2663sub cf::object::player::enter_link {
2664 my ($self) = @_;
2665
2666 $self->deactivate_recursive;
2667
2668 ++$self->{_link_recursion};
2669
2670 return if UNIVERSAL::isa $self->map, "ext::map_link";
2671
2672 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2673 if $self->map && $self->map->{path} ne "{link}";
2674
2675 $self->enter_map ($LINK_MAP || link_map, 3, 3);
2676}
2677
2678sub cf::object::player::leave_link {
2679 my ($self, $map, $x, $y) = @_;
2680
2681 return unless $self->contr->active;
2682
2683 my $link_pos = delete $self->{_link_pos};
2684
2685 unless ($map) {
2686 # restore original map position
2687 ($map, $x, $y) = @{ $link_pos || [] };
2688 $map = cf::map::find $map;
2689
2690 unless ($map) {
2691 ($map, $x, $y) = @$EMERGENCY_POSITION;
2692 $map = cf::map::find $map
2693 or die "FATAL: cannot load emergency map\n";
2694 }
2695 }
2696
2697 ($x, $y) = (-1, -1)
2698 unless (defined $x) && (defined $y);
2699
2700 # use -1 or undef as default coordinates, not 0, 0
2701 ($x, $y) = ($map->enter_x, $map->enter_y)
2702 if $x <= 0 && $y <= 0;
2703
2704 $map->load;
2705 $map->load_neighbours;
2706
2707 return unless $self->contr->active;
2708
2709 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2710 if ($self->enter_map ($map, $x, $y)) {
2711 # entering was successful
2712 delete $self->{_link_recursion};
2713 # only activate afterwards, to support waiting in hooks
2714 $self->activate_recursive;
2715 }
2716
2717}
2718
2719=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2720
2721Moves the player to the given map-path and coordinates by first freezing
2722her, loading and preparing them map, calling the provided $check callback
2723that has to return the map if sucecssful, and then unfreezes the player on
2724the new (success) or old (failed) map position. In either case, $done will
2725be called at the end of this process.
2726
2727Note that $check will be called with a potentially non-loaded map, so if
2728it needs a loaded map it has to call C<< ->load >>.
2729
2730=cut
2731
2732our $GOTOGEN;
2733
2734sub cf::object::player::goto {
2735 my ($self, $path, $x, $y, $check, $done) = @_;
2736
2737 if ($self->{_link_recursion} >= $MAX_LINKS) {
2738 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2739 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2740 ($path, $x, $y) = @$EMERGENCY_POSITION;
2741 }
2742
2743 # do generation counting so two concurrent goto's will be executed in-order
2744 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2745
2746 $self->enter_link;
2747
2748 (async {
2749 $Coro::current->{desc} = "player::goto $path $x $y";
2750
2751 # *tag paths override both path and x|y
2752 if ($path =~ /^\*(.*)$/) {
2753 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2754 my $ob = $obs[rand @obs];
2755
2756 # see if we actually can go there
2757 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2758 $ob = $obs[rand @obs];
2759 } else {
2760 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2761 }
2762 # else put us there anyways for now #d#
2763
2764 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2765 } else {
2766 ($path, $x, $y) = (undef, undef, undef);
2767 }
2768 }
2769
2770 my $map = eval {
2771 my $map = defined $path ? cf::map::find $path : undef;
2772
2773 if ($map) {
2774 $map = $map->customise_for ($self);
2775 $map = $check->($map, $x, $y, $self) if $check && $map;
2776 } else {
2777 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2778 }
2779
2780 $map
2781 };
2782
2783 if ($@) {
2784 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2785 LOG llevError | logBacktrace, Carp::longmess $@;
2786 }
2787
2788 if ($gen == $self->{_goto_generation}) {
2789 delete $self->{_goto_generation};
2790 $self->leave_link ($map, $x, $y);
2791 }
2792
2793 $done->($self) if $done;
2794 })->prio (1);
2795}
2796
2797=item $player_object->enter_exit ($exit_object)
2798
2799=cut
2800
2801sub parse_random_map_params {
2802 my ($spec) = @_;
2803
2804 my $rmp = { # defaults
2805 xsize => (cf::rndm 15, 40),
2806 ysize => (cf::rndm 15, 40),
2807 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2808 #layout => string,
2809 };
2810
2811 for (split /\n/, $spec) {
2812 my ($k, $v) = split /\s+/, $_, 2;
2813
2814 $rmp->{lc $k} = $v if (length $k) && (length $v);
2815 }
2816
2817 $rmp
2818}
2819
2820sub prepare_random_map {
2821 my ($exit) = @_;
2822
2823 # all this does is basically replace the /! path by
2824 # a new random map path (?random/...) with a seed
2825 # that depends on the exit object
2826
2827 my $rmp = parse_random_map_params $exit->msg;
2828
2829 if ($exit->map) {
2830 $rmp->{region} = $exit->region->name;
2831 $rmp->{origin_map} = $exit->map->path;
2832 $rmp->{origin_x} = $exit->x;
2833 $rmp->{origin_y} = $exit->y;
2834
2835 $exit->map->touch;
2836 }
2837
2838 $rmp->{random_seed} ||= $exit->random_seed;
2839
2840 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2841 my $md5 = Digest::MD5::md5_hex $data;
2842 my $meta = "$RANDOMDIR/$md5.meta";
2843
2844 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2845 aio_write $fh, 0, (length $data), $data, 0;
2846 undef $fh;
2847 aio_rename "$meta~", $meta;
2848
2849 my $slaying = "?random/$md5";
2850
2851 if ($exit->valid) {
2852 $exit->slaying ("?random/$md5");
2853 $exit->msg (undef);
2854 }
2855 }
2856}
2857
2858sub cf::object::player::enter_exit {
2859 my ($self, $exit) = @_;
2860
2861 return unless $self->type == cf::PLAYER;
2862
2863 $self->enter_link;
2864
2865 (async {
2866 $Coro::current->{desc} = "enter_exit";
2867
2868 unless (eval {
2869 $self->deactivate_recursive; # just to be sure
2870
2871 # random map handling
2872 {
2873 my $guard = cf::lock_acquire "exit_prepare:$exit";
2874
2875 prepare_random_map $exit
2876 if $exit->slaying eq "/!";
2877 }
2878
2879 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2880 my $x = $exit->stats->hp;
2881 my $y = $exit->stats->sp;
2882
2883 $self->goto ($map, $x, $y);
2884
2885 # if exit is damned, update players death & WoR home-position
2886 $self->contr->savebed ($map, $x, $y)
2887 if $exit->flag (cf::FLAG_DAMNED);
2888
2889 1
2890 }) {
2891 $self->message ("Something went wrong deep within the deliantra server. "
2892 . "I'll try to bring you back to the map you were before. "
2893 . "Please report this to the dungeon master!",
2894 cf::NDI_UNIQUE | cf::NDI_RED);
2895
2896 error "ERROR in enter_exit: $@";
2897 $self->leave_link;
2898 }
2899 })->prio (1);
2900}
2901
2902=head3 cf::client
2903
2904=over 4
2905
2906=item $client->send_drawinfo ($text, $flags)
2907
2908Sends a drawinfo packet to the client. Circumvents output buffering so
2909should not be used under normal circumstances.
2910
2911=cut
2912
2913sub cf::client::send_drawinfo {
2914 my ($self, $text, $flags) = @_;
2915
2916 utf8::encode $text;
2917 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2918}
2919
2920=item $client->send_big_packet ($pkt)
2921
2922Like C<send_packet>, but tries to compress large packets, and fragments
2923them as required.
2924
2925=cut
2926
2927our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2928
2929sub cf::client::send_big_packet {
2930 my ($self, $pkt) = @_;
2931
2932 # try lzf for large packets
2933 $pkt = "lzf " . Compress::LZF::compress $pkt
2934 if 1024 <= length $pkt and $self->{can_lzf};
2935
2936 # split very large packets
2937 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2938 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2939 $pkt = "frag";
2940 }
2941
2942 $self->send_packet ($pkt);
2943}
2944
2945=item $client->send_msg ($channel, $msg, $color, [extra...])
2946
2947Send a drawinfo or msg packet to the client, formatting the msg for the
2948client if neccessary. C<$type> should be a string identifying the type of
2949the message, with C<log> being the default. If C<$color> is negative, suppress
2950the message unless the client supports the msg packet.
2951
2952=cut
2953
2954# non-persistent channels (usually the info channel)
2955our %CHANNEL = (
2956 "c/motd" => {
2957 id => "infobox",
2958 title => "MOTD",
2959 reply => undef,
2960 tooltip => "The message of the day",
2961 },
2962 "c/identify" => {
2963 id => "infobox",
2964 title => "Identify",
2965 reply => undef,
2966 tooltip => "Items recently identified",
2967 },
2968 "c/examine" => {
2969 id => "infobox",
2970 title => "Examine",
2971 reply => undef,
2972 tooltip => "Signs and other items you examined",
2973 },
2974 "c/shopinfo" => {
2975 id => "infobox",
2976 title => "Shop Info",
2977 reply => undef,
2978 tooltip => "What your bargaining skill tells you about the shop",
2979 },
2980 "c/book" => {
2981 id => "infobox",
2982 title => "Book",
2983 reply => undef,
2984 tooltip => "The contents of a note or book",
2985 },
2986 "c/lookat" => {
2987 id => "infobox",
2988 title => "Look",
2989 reply => undef,
2990 tooltip => "What you saw there",
2991 },
2992 "c/who" => {
2993 id => "infobox",
2994 title => "Players",
2995 reply => undef,
2996 tooltip => "Shows players who are currently online",
2997 },
2998 "c/body" => {
2999 id => "infobox",
3000 title => "Body Parts",
3001 reply => undef,
3002 tooltip => "Shows which body parts you posess and are available",
3003 },
3004 "c/statistics" => {
3005 id => "infobox",
3006 title => "Statistics",
3007 reply => undef,
3008 tooltip => "Shows your primary statistics",
3009 },
3010 "c/skills" => {
3011 id => "infobox",
3012 title => "Skills",
3013 reply => undef,
3014 tooltip => "Shows your experience per skill and item power",
3015 },
3016 "c/shopitems" => {
3017 id => "infobox",
3018 title => "Shop Items",
3019 reply => undef,
3020 tooltip => "Shows the items currently for sale in this shop",
3021 },
3022 "c/resistances" => {
3023 id => "infobox",
3024 title => "Resistances",
3025 reply => undef,
3026 tooltip => "Shows your resistances",
3027 },
3028 "c/pets" => {
3029 id => "infobox",
3030 title => "Pets",
3031 reply => undef,
3032 tooltip => "Shows information abotu your pets/a specific pet",
3033 },
3034 "c/perceiveself" => {
3035 id => "infobox",
3036 title => "Perceive Self",
3037 reply => undef,
3038 tooltip => "You gained detailed knowledge about yourself",
3039 },
3040 "c/uptime" => {
3041 id => "infobox",
3042 title => "Uptime",
3043 reply => undef,
3044 tooltip => "How long the server has been running since last restart",
3045 },
3046 "c/mapinfo" => {
3047 id => "infobox",
3048 title => "Map Info",
3049 reply => undef,
3050 tooltip => "Information related to the maps",
3051 },
3052 "c/party" => {
3053 id => "party",
3054 title => "Party",
3055 reply => "gsay ",
3056 tooltip => "Messages and chat related to your party",
3057 },
3058 "c/death" => {
3059 id => "death",
3060 title => "Death",
3061 reply => undef,
3062 tooltip => "Reason for and more info about your most recent death",
3063 },
3064 "c/say" => $SAY_CHANNEL,
3065 "c/chat" => $CHAT_CHANNEL,
3066);
3067
3068sub cf::client::send_msg {
3069 my ($self, $channel, $msg, $color, @extra) = @_;
3070
3071 $msg = $self->pl->expand_cfpod ($msg)
3072 unless $color & cf::NDI_VERBATIM;
3073
3074 $color &= cf::NDI_CLIENT_MASK; # just in case...
3075
3076 # check predefined channels, for the benefit of C
3077 if ($CHANNEL{$channel}) {
3078 $channel = $CHANNEL{$channel};
3079
3080 $self->ext_msg (channel_info => $channel);
3081 $channel = $channel->{id};
3082
3083 } elsif (ref $channel) {
3084 # send meta info to client, if not yet sent
3085 unless (exists $self->{channel}{$channel->{id}}) {
3086 $self->{channel}{$channel->{id}} = $channel;
3087 $self->ext_msg (channel_info => $channel);
3088 }
3089
3090 $channel = $channel->{id};
3091 }
3092
3093 return unless @extra || length $msg;
3094
3095 # default colour, mask it out
3096 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3097 if $color & cf::NDI_DEF;
3098
3099 my $pkt = "msg "
3100 . $self->{json_coder}->encode (
3101 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3102 );
3103
3104 $self->send_big_packet ($pkt);
3105}
3106
3107=item $client->ext_msg ($type, @msg)
3108
3109Sends an ext event to the client.
3110
3111=cut
3112
3113sub cf::client::ext_msg($$@) {
3114 my ($self, $type, @msg) = @_;
3115
3116 if ($self->extcmd == 2) {
3117 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3118 } elsif ($self->extcmd == 1) { # TODO: remove
3119 push @msg, msgtype => "event_$type";
3120 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3121 }
3122}
3123
3124=item $client->ext_reply ($msgid, @msg)
3125
3126Sends an ext reply to the client.
3127
3128=cut
3129
3130sub cf::client::ext_reply($$@) {
3131 my ($self, $id, @msg) = @_;
3132
3133 if ($self->extcmd == 2) {
3134 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
3135 } elsif ($self->extcmd == 1) {
3136 #TODO: version 1, remove
3137 unshift @msg, msgtype => "reply", msgid => $id;
3138 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3139 }
3140}
3141
3142=item $success = $client->query ($flags, "text", \&cb)
3143
3144Queues a query to the client, calling the given callback with
3145the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
3146C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
3147
3148Queries can fail, so check the return code. Or don't, as queries will
3149become reliable at some point in the future.
3150
3151=cut
3152
3153sub cf::client::query {
3154 my ($self, $flags, $text, $cb) = @_;
3155
3156 return unless $self->state == ST_PLAYING
3157 || $self->state == ST_SETUP
3158 || $self->state == ST_CUSTOM;
3159
3160 $self->state (ST_CUSTOM);
3161
3162 utf8::encode $text;
3163 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
3164
3165 $self->send_packet ($self->{query_queue}[0][0])
3166 if @{ $self->{query_queue} } == 1;
3167
3168 1
3169}
3170
3171cf::client->attach (
3172 on_connect => sub {
3173 my ($ns) = @_;
3174
3175 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3176 },
3177 on_reply => sub {
3178 my ($ns, $msg) = @_;
3179
3180 # this weird shuffling is so that direct followup queries
3181 # get handled first
3182 my $queue = delete $ns->{query_queue}
3183 or return; # be conservative, not sure how that can happen, but we saw a crash here
3184
3185 (shift @$queue)->[1]->($msg);
3186 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
3187
3188 push @{ $ns->{query_queue} }, @$queue;
3189
3190 if (@{ $ns->{query_queue} } == @$queue) {
3191 if (@$queue) {
3192 $ns->send_packet ($ns->{query_queue}[0][0]);
3193 } else {
3194 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
3195 }
3196 }
3197 },
3198 on_exticmd => sub {
3199 my ($ns, $buf) = @_;
3200
3201 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3202
3203 if (ref $msg) {
3204 my ($type, $reply, @payload) =
3205 "ARRAY" eq ref $msg
3206 ? @$msg
3207 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3208
3209 my @reply;
3210
3211 if (my $cb = $EXTICMD{$type}) {
3212 @reply = $cb->($ns, @payload);
3213 }
3214
3215 $ns->ext_reply ($reply, @reply)
3216 if $reply;
3217
3218 } else {
3219 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3220 }
3221
3222 cf::override;
3223 },
3224);
3225
3226=item $client->async (\&cb)
3227
3228Create a new coroutine, running the specified callback. The coroutine will
3229be automatically cancelled when the client gets destroyed (e.g. on logout,
3230or loss of connection).
3231
3232=cut
3233
3234sub cf::client::async {
3235 my ($self, $cb) = @_;
3236
3237 my $coro = &Coro::async ($cb);
3238
3239 $coro->on_destroy (sub {
3240 delete $self->{_coro}{$coro+0};
3241 });
3242
3243 $self->{_coro}{$coro+0} = $coro;
3244
3245 $coro
3246}
3247
3248cf::client->attach (
3249 on_client_destroy => sub {
3250 my ($ns) = @_;
3251
3252 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
3253 },
3254);
3255
3256=back
3257
832 3258
833=head2 SAFE SCRIPTING 3259=head2 SAFE SCRIPTING
834 3260
835Functions that provide a safe environment to compile and execute 3261Functions that provide a safe environment to compile and execute
836snippets of perl code without them endangering the safety of the server 3262snippets of perl code without them endangering the safety of the server
843our $safe = new Safe "safe"; 3269our $safe = new Safe "safe";
844our $safe_hole = new Safe::Hole; 3270our $safe_hole = new Safe::Hole;
845 3271
846$SIG{FPE} = 'IGNORE'; 3272$SIG{FPE} = 'IGNORE';
847 3273
848$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3274$safe->permit_only (Opcode::opset qw(
3275 :base_core :base_mem :base_orig :base_math :base_loop
3276 grepstart grepwhile mapstart mapwhile
3277 sort time
3278));
849 3279
850# here we export the classes and methods available to script code 3280# here we export the classes and methods available to script code
851 3281
852=pod 3282=pod
853 3283
854The following fucntions and emthods are available within a safe environment: 3284The following functions and methods are available within a safe environment:
855 3285
856 cf::object contr pay_amount pay_player map 3286 cf::object
3287 contr pay_amount pay_player map x y force_find force_add destroy
3288 insert remove name archname title slaying race decrease split
3289 value
3290
857 cf::object::player player 3291 cf::object::player
858 cf::player peaceful 3292 player
859 cf::map trigger 3293
3294 cf::player
3295 peaceful
3296
3297 cf::map
3298 trigger
860 3299
861=cut 3300=cut
862 3301
863for ( 3302for (
864 ["cf::object" => qw(contr pay_amount pay_player map)], 3303 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3304 insert remove inv nrof name archname title slaying race
3305 decrease split destroy change_exp value msg lore send_msg)],
865 ["cf::object::player" => qw(player)], 3306 ["cf::object::player" => qw(player)],
866 ["cf::player" => qw(peaceful)], 3307 ["cf::player" => qw(peaceful send_msg)],
867 ["cf::map" => qw(trigger)], 3308 ["cf::map" => qw(trigger)],
868) { 3309) {
869 no strict 'refs';
870 my ($pkg, @funs) = @$_; 3310 my ($pkg, @funs) = @$_;
871 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3311 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
872 for @funs; 3312 for @funs;
873} 3313}
874 3314
889 3329
890 my $qcode = $code; 3330 my $qcode = $code;
891 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3331 $qcode =~ s/"/‟/g; # not allowed in #line filenames
892 $qcode =~ s/\n/\\n/g; 3332 $qcode =~ s/\n/\\n/g;
893 3333
3334 %vars = (_dummy => 0) unless %vars;
3335
3336 my @res;
894 local $_; 3337 local $_;
895 local @safe::cf::_safe_eval_args = values %vars;
896 3338
897 my $eval = 3339 my $eval =
898 "do {\n" 3340 "do {\n"
899 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3341 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
900 . "#line 0 \"{$qcode}\"\n" 3342 . "#line 0 \"{$qcode}\"\n"
901 . $code 3343 . $code
902 . "\n}" 3344 . "\n}"
903 ; 3345 ;
904 3346
3347 if ($CFG{safe_eval}) {
905 sub_generation_inc; 3348 sub_generation_inc;
3349 local @safe::cf::_safe_eval_args = values %vars;
906 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3350 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
907 sub_generation_inc; 3351 sub_generation_inc;
3352 } else {
3353 local @cf::_safe_eval_args = values %vars;
3354 @res = wantarray ? eval eval : scalar eval $eval;
3355 }
908 3356
909 if ($@) { 3357 if ($@) {
910 warn "$@"; 3358 warn "$@",
911 warn "while executing safe code '$code'\n"; 3359 "while executing safe code '$code'\n",
912 warn "with arguments " . (join " ", %vars) . "\n"; 3360 "with arguments " . (join " ", %vars) . "\n";
913 } 3361 }
914 3362
915 wantarray ? @res : $res[0] 3363 wantarray ? @res : $res[0]
916} 3364}
917 3365
931=cut 3379=cut
932 3380
933sub register_script_function { 3381sub register_script_function {
934 my ($fun, $cb) = @_; 3382 my ($fun, $cb) = @_;
935 3383
936 no strict 'refs'; 3384 $fun = "safe::$fun" if $CFG{safe_eval};
937 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3385 *$fun = $safe_hole->wrap ($cb);
938} 3386}
939 3387
940=back 3388=back
941 3389
942=cut 3390=cut
943 3391
944############################################################################# 3392#############################################################################
3393# the server's init and main functions
945 3394
946=head2 EXTENSION DATABASE SUPPORT 3395sub load_facedata($) {
3396 my ($path) = @_;
947 3397
948Crossfire maintains a very simple database for extension use. It can 3398 # HACK to clear player env face cache, we need some signal framework
949currently store anything that can be serialised using Storable, which 3399 # for this (global event?)
950excludes objects. 3400 %ext::player_env::MUSIC_FACE_CACHE = ();
951 3401
952The parameter C<$family> should best start with the name of the extension 3402 my $enc = JSON::XS->new->utf8->canonical->relaxed;
953using it, it should be unique.
954 3403
955=over 4 3404 trace "loading facedata from $path\n";
956 3405
957=item $hashref = cf::db_get $family 3406 0 < aio_load $path, my $facedata
3407 or die "$path: $!";
958 3408
959Return a hashref for use by the extension C<$family>, which can be 3409 $facedata = Coro::Storable::thaw $facedata;
960modified. After modifications, you have to call C<cf::db_dirty> or
961C<cf::db_sync>.
962 3410
963=item $value = cf::db_get $family => $key 3411 $facedata->{version} == 2
3412 or cf::cleanup "$path: version mismatch, cannot proceed.";
964 3413
965Returns a single value from the database 3414 # patch in the exptable
3415 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3416 $facedata->{resource}{"res/exp_table"} = {
3417 type => FT_RSRC,
3418 data => $exp_table,
3419 hash => (Digest::MD5::md5 $exp_table),
3420 };
3421 cf::cede_to_tick;
966 3422
967=item cf::db_put $family => $hashref 3423 {
3424 my $faces = $facedata->{faceinfo};
968 3425
969Stores the given family hashref into the database. Updates are delayed, if 3426 while (my ($face, $info) = each %$faces) {
970you want the data to be synced to disk immediately, use C<cf::db_sync>. 3427 my $idx = (cf::face::find $face) || cf::face::alloc $face;
971 3428
972=item cf::db_put $family => $key => $value 3429 cf::face::set_visibility $idx, $info->{visibility};
3430 cf::face::set_magicmap $idx, $info->{magicmap};
3431 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3432 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
3433 cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
973 3434
974Stores the given C<$value> in the family hash. Updates are delayed, if you 3435 cf::cede_to_tick;
975want the data to be synced to disk immediately, use C<cf::db_sync>. 3436 }
976 3437
977=item cf::db_dirty 3438 while (my ($face, $info) = each %$faces) {
3439 next unless $info->{smooth};
978 3440
979Marks the database as dirty, to be updated at a later time. 3441 my $idx = cf::face::find $face
3442 or next;
980 3443
981=item cf::db_sync 3444 if (my $smooth = cf::face::find $info->{smooth}) {
3445 cf::face::set_smooth $idx, $smooth;
3446 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3447 } else {
3448 error "smooth face '$info->{smooth}' not found for face '$face'";
3449 }
982 3450
983Immediately write the database to disk I<if it is dirty>. 3451 cf::cede_to_tick;
3452 }
3453 }
984 3454
985=cut 3455 {
3456 my $anims = $facedata->{animinfo};
986 3457
987our $DB; 3458 while (my ($anim, $info) = each %$anims) {
3459 cf::anim::set $anim, $info->{frames}, $info->{facings};
3460 cf::cede_to_tick;
3461 }
3462
3463 cf::anim::invalidate_all; # d'oh
3464 }
3465
3466 {
3467 my $res = $facedata->{resource};
3468
3469 while (my ($name, $info) = each %$res) {
3470 if (defined $info->{type}) {
3471 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3472
3473 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3474 cf::face::set_type $idx, $info->{type};
3475 } else {
3476 $RESOURCE{$name} = $info; # unused
3477 }
3478
3479 cf::cede_to_tick;
3480 }
3481 }
3482
3483 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3484
3485 1
3486}
3487
3488register_exticmd fx_want => sub {
3489 my ($ns, $want) = @_;
3490
3491 while (my ($k, $v) = each %$want) {
3492 $ns->fx_want ($k, $v);
3493 }
3494};
3495
3496sub load_resource_file($) {
3497 my $guard = lock_acquire "load_resource_file";
3498
3499 my $status = load_resource_file_ $_[0];
3500 get_slot 0.1, 100;
3501 cf::arch::commit_load;
3502
3503 $status
3504}
3505
3506sub reload_regions {
3507 # HACK to clear player env face cache, we need some signal framework
3508 # for this (global event?)
3509 %ext::player_env::MUSIC_FACE_CACHE = ();
3510
3511 load_resource_file "$MAPDIR/regions"
3512 or die "unable to load regions file\n";
3513
3514 for (cf::region::list) {
3515 $_->{match} = qr/$_->{match}/
3516 if exists $_->{match};
3517 }
3518}
3519
3520sub reload_facedata {
3521 load_facedata "$DATADIR/facedata"
3522 or die "unable to load facedata\n";
3523}
3524
3525sub reload_archetypes {
3526 load_resource_file "$DATADIR/archetypes"
3527 or die "unable to load archetypes\n";
3528}
3529
3530sub reload_treasures {
3531 load_resource_file "$DATADIR/treasures"
3532 or die "unable to load treasurelists\n";
3533}
3534
3535sub reload_sound {
3536 trace "loading sound config from $DATADIR/sound\n";
3537
3538 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3539 or die "$DATADIR/sound $!";
3540
3541 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3542
3543 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3544 my $sound = $soundconf->{compat}[$_]
3545 or next;
3546
3547 my $face = cf::face::find "sound/$sound->[1]";
3548 cf::sound::set $sound->[0] => $face;
3549 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3550 }
3551
3552 while (my ($k, $v) = each %{$soundconf->{event}}) {
3553 my $face = cf::face::find "sound/$v";
3554 cf::sound::set $k => $face;
3555 }
3556}
3557
3558sub reload_resources {
3559 trace "reloading resource files...\n";
3560
3561 reload_exp_table;
3562 reload_materials;
3563 reload_facedata;
3564 reload_sound;
3565 reload_archetypes;
3566 reload_regions;
3567 reload_treasures;
3568
3569 trace "finished reloading resource files\n";
3570}
3571
3572sub reload_config {
3573 trace "reloading config file...\n";
3574
3575 0 < aio_load "$CONFDIR/config", my $config
3576 or die "$CONFDIR/config: $!";
3577
3578 utf8::decode $config;
3579 *CFG = yaml_load $config;
3580
3581 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
3582
3583 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3584 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3585
3586 if (exists $CFG{mlockall}) {
3587 eval {
3588 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3589 and die "WARNING: m(un)lockall failed: $!\n";
3590 };
3591 warn $@ if $@;
3592 }
3593}
3594
3595sub pidfile() {
3596 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3597 or die "$PIDFILE: $!";
3598 flock $fh, &Fcntl::LOCK_EX
3599 or die "$PIDFILE: flock: $!";
3600 $fh
3601}
3602
3603# make sure only one server instance is running at any one time
3604sub atomic {
3605 my $fh = pidfile;
3606
3607 my $pid = <$fh>;
3608 kill 9, $pid if $pid > 0;
3609
3610 seek $fh, 0, 0;
3611 print $fh $$;
3612}
3613
3614sub main_loop {
3615 trace "EV::loop starting\n";
3616 if (1) {
3617 EV::loop;
3618 }
3619 trace "EV::loop returned\n";
3620 goto &main_loop unless $REALLY_UNLOOP;
3621}
3622
3623sub main {
3624 cf::init_globals; # initialise logging
3625
3626 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3627 LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3628 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3629 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3630
3631 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3632
3633 # we must not ever block the main coroutine
3634 local $Coro::idle = sub {
3635 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3636 (async {
3637 $Coro::current->{desc} = "IDLE BUG HANDLER";
3638 EV::loop EV::LOOP_ONESHOT;
3639 })->prio (Coro::PRIO_MAX);
3640 };
3641
3642 evthread_start IO::AIO::poll_fileno;
3643
3644 cf::sync_job {
3645 cf::incloader::init ();
3646
3647 cf::init_anim;
3648 cf::init_attackmess;
3649 cf::init_dynamic;
3650
3651 cf::load_settings;
3652
3653 reload_resources;
3654 reload_config;
3655 db_init;
3656
3657 cf::init_uuid;
3658 cf::init_signals;
3659 cf::init_skills;
3660
3661 cf::init_beforeplay;
3662
3663 atomic;
3664
3665 load_extensions;
3666
3667 utime time, time, $RUNTIMEFILE;
3668
3669 # no (long-running) fork's whatsoever before this point(!)
3670 use POSIX ();
3671 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3672
3673 cf::_post_init 0;
3674 };
3675
3676 cf::object::thawer::errors_are_fatal 0;
3677 info "parse errors in files are no longer fatal from this point on.\n";
3678
3679 my $free_main; $free_main = EV::idle sub {
3680 undef $free_main;
3681 undef &main; # free gobs of memory :)
3682 };
3683
3684 goto &main_loop;
3685}
3686
3687#############################################################################
3688# initialisation and cleanup
3689
3690# install some emergency cleanup handlers
3691BEGIN {
3692 our %SIGWATCHER = ();
3693 for my $signal (qw(INT HUP TERM)) {
3694 $SIGWATCHER{$signal} = AE::signal $signal, sub {
3695 cf::cleanup "SIG$signal";
3696 };
3697 }
3698}
3699
3700sub write_runtime_sync {
3701 my $t0 = AE::time;
3702
3703 # first touch the runtime file to show we are still running:
3704 # the fsync below can take a very very long time.
3705
3706 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3707
3708 my $guard = cf::lock_acquire "write_runtime";
3709
3710 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3711 or return;
3712
3713 my $value = $cf::RUNTIME + 90 + 10;
3714 # 10 is the runtime save interval, for a monotonic clock
3715 # 60 allows for the watchdog to kill the server.
3716
3717 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3718 and return;
3719
3720 # always fsync - this file is important
3721 aio_fsync $fh
3722 and return;
3723
3724 # touch it again to show we are up-to-date
3725 aio_utime $fh, undef, undef;
3726
3727 close $fh
3728 or return;
3729
3730 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3731 and return;
3732
3733 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3734
3735 1
3736}
3737
3738our $uuid_lock;
3739our $uuid_skip;
3740
3741sub write_uuid_sync($) {
3742 $uuid_skip ||= $_[0];
3743
3744 return if $uuid_lock;
3745 local $uuid_lock = 1;
3746
3747 my $uuid = "$LOCALDIR/uuid";
3748
3749 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3750 or return;
3751
3752 my $value = uuid_seq uuid_cur;
3753
3754 unless ($value) {
3755 info "cowardly refusing to write zero uuid value!\n";
3756 return;
3757 }
3758
3759 my $value = uuid_str $value + $uuid_skip;
3760 $uuid_skip = 0;
3761
3762 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3763 and return;
3764
3765 # always fsync - this file is important
3766 aio_fsync $fh
3767 and return;
3768
3769 close $fh
3770 or return;
3771
3772 aio_rename "$uuid~", $uuid
3773 and return;
3774
3775 trace "uuid file written ($value).\n";
3776
3777 1
3778
3779}
3780
3781sub write_uuid($$) {
3782 my ($skip, $sync) = @_;
3783
3784 $sync ? write_uuid_sync $skip
3785 : async { write_uuid_sync $skip };
3786}
3787
3788sub emergency_save() {
3789 my $freeze_guard = cf::freeze_mainloop;
3790
3791 info "emergency_perl_save: enter\n";
3792
3793 # this is a trade-off: we want to be very quick here, so
3794 # save all maps without fsync, and later call a global sync
3795 # (which in turn might be very very slow)
3796 local $USE_FSYNC = 0;
3797
3798 cf::sync_job {
3799 cf::write_runtime_sync; # external watchdog should not bark
3800
3801 # use a peculiar iteration method to avoid tripping on perl
3802 # refcount bugs in for. also avoids problems with players
3803 # and maps saved/destroyed asynchronously.
3804 info "emergency_perl_save: begin player save\n";
3805 for my $login (keys %cf::PLAYER) {
3806 my $pl = $cf::PLAYER{$login} or next;
3807 $pl->valid or next;
3808 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3809 $pl->save;
3810 }
3811 info "emergency_perl_save: end player save\n";
3812
3813 cf::write_runtime_sync; # external watchdog should not bark
3814
3815 info "emergency_perl_save: begin map save\n";
3816 for my $path (keys %cf::MAP) {
3817 my $map = $cf::MAP{$path} or next;
3818 $map->valid or next;
3819 $map->save;
3820 }
3821 info "emergency_perl_save: end map save\n";
3822
3823 cf::write_runtime_sync; # external watchdog should not bark
3824
3825 info "emergency_perl_save: begin database checkpoint\n";
3826 BDB::db_env_txn_checkpoint $DB_ENV;
3827 info "emergency_perl_save: end database checkpoint\n";
3828
3829 info "emergency_perl_save: begin write uuid\n";
3830 write_uuid_sync 1;
3831 info "emergency_perl_save: end write uuid\n";
3832
3833 cf::write_runtime_sync; # external watchdog should not bark
3834
3835 trace "emergency_perl_save: syncing database to disk";
3836 BDB::db_env_txn_checkpoint $DB_ENV;
3837
3838 info "emergency_perl_save: starting sync\n";
3839 IO::AIO::aio_sync sub {
3840 info "emergency_perl_save: finished sync\n";
3841 };
3842
3843 cf::write_runtime_sync; # external watchdog should not bark
3844
3845 trace "emergency_perl_save: flushing outstanding aio requests";
3846 while (IO::AIO::nreqs || BDB::nreqs) {
3847 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3848 }
3849
3850 cf::write_runtime_sync; # external watchdog should not bark
3851 };
3852
3853 info "emergency_perl_save: leave\n";
3854}
3855
3856sub post_cleanup {
3857 my ($make_core) = @_;
3858
3859 IO::AIO::flush;
3860
3861 error Carp::longmess "post_cleanup backtrace"
3862 if $make_core;
3863
3864 my $fh = pidfile;
3865 unlink $PIDFILE if <$fh> == $$;
3866}
3867
3868# a safer delete_package, copied from Symbol
3869sub clear_package($) {
3870 my $pkg = shift;
3871
3872 # expand to full symbol table name if needed
3873 unless ($pkg =~ /^main::.*::$/) {
3874 $pkg = "main$pkg" if $pkg =~ /^::/;
3875 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3876 $pkg .= '::' unless $pkg =~ /::$/;
3877 }
3878
3879 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3880 my $stem_symtab = *{$stem}{HASH};
3881
3882 defined $stem_symtab and exists $stem_symtab->{$leaf}
3883 or return;
3884
3885 # clear all symbols
3886 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3887 for my $name (keys %$leaf_symtab) {
3888 _gv_clear *{"$pkg$name"};
3889# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3890 }
3891}
3892
3893sub do_reload_perl() {
3894 # can/must only be called in main
3895 unless (in_main) {
3896 error "can only reload from main coroutine";
3897 return;
3898 }
3899
3900 return if $RELOAD++;
3901
3902 my $t1 = AE::time;
3903
3904 while ($RELOAD) {
3905 cf::get_slot 0.1, -1, "reload_perl";
3906 info "perl_reload: reloading...";
3907
3908 trace "perl_reload: entering sync_job";
3909
3910 cf::sync_job {
3911 #cf::emergency_save;
3912
3913 trace "perl_reload: cancelling all extension coros";
3914 $_->cancel for values %EXT_CORO;
3915 %EXT_CORO = ();
3916
3917 trace "perl_reload: removing commands";
3918 %COMMAND = ();
3919
3920 trace "perl_reload: removing ext/exti commands";
3921 %EXTCMD = ();
3922 %EXTICMD = ();
3923
3924 trace "perl_reload: unloading/nuking all extensions";
3925 for my $pkg (@EXTS) {
3926 trace "... unloading $pkg";
3927
3928 if (my $cb = $pkg->can ("unload")) {
3929 eval {
3930 $cb->($pkg);
3931 1
3932 } or error "$pkg unloaded, but with errors: $@";
3933 }
3934
3935 trace "... clearing $pkg";
3936 clear_package $pkg;
3937 }
3938
3939 trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
3940 while (my ($k, $v) = each %INC) {
3941 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3942
3943 trace "... unloading $k";
3944 delete $INC{$k};
3945
3946 $k =~ s/\.pm$//;
3947 $k =~ s/\//::/g;
3948
3949 if (my $cb = $k->can ("unload_module")) {
3950 $cb->();
3951 }
3952
3953 clear_package $k;
3954 }
3955
3956 trace "perl_reload: getting rid of safe::, as good as possible";
3957 clear_package "safe::$_"
3958 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3959
3960 trace "perl_reload: unloading cf.pm \"a bit\"";
3961 delete $INC{"cf.pm"};
3962 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3963
3964 # don't, removes xs symbols, too,
3965 # and global variables created in xs
3966 #clear_package __PACKAGE__;
3967
3968 info "perl_reload: unload completed, starting to reload now";
3969
3970 trace "perl_reload: reloading cf.pm";
3971 require cf;
3972 cf::_connect_to_perl_1;
3973
3974 trace "perl_reload: loading config and database again";
3975 cf::reload_config;
3976
3977 trace "perl_reload: loading extensions";
3978 cf::load_extensions;
3979
3980 if ($REATTACH_ON_RELOAD) {
3981 trace "perl_reload: reattaching attachments to objects/players";
3982 _global_reattach; # objects, sockets
3983 trace "perl_reload: reattaching attachments to maps";
3984 reattach $_ for values %MAP;
3985 trace "perl_reload: reattaching attachments to players";
3986 reattach $_ for values %PLAYER;
3987 }
3988
3989 cf::_post_init 1;
3990
3991 trace "perl_reload: leaving sync_job";
3992
3993 1
3994 } or do {
3995 error $@;
3996 cf::cleanup "perl_reload: error, exiting.";
3997 };
3998
3999 --$RELOAD;
4000 }
4001
4002 $t1 = AE::time - $t1;
4003 info "perl_reload: completed in ${t1}s\n";
4004};
4005
4006our $RELOAD_WATCHER; # used only during reload
4007
4008sub reload_perl() {
4009 # doing reload synchronously and two reloads happen back-to-back,
4010 # coro crashes during coro_state_free->destroy here.
4011
4012 $RELOAD_WATCHER ||= cf::async {
4013 Coro::AIO::aio_wait cache_extensions;
4014
4015 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
4016 do_reload_perl;
4017 undef $RELOAD_WATCHER;
4018 };
4019 };
4020}
4021
4022register_command "reload" => sub {
4023 my ($who, $arg) = @_;
4024
4025 if ($who->flag (FLAG_WIZ)) {
4026 $who->message ("reloading server.");
4027 async {
4028 $Coro::current->{desc} = "perl_reload";
4029 reload_perl;
4030 };
4031 }
4032};
4033
4034#############################################################################
4035
4036my $bug_warning = 0;
4037
4038our @WAIT_FOR_TICK;
4039our @WAIT_FOR_TICK_BEGIN;
4040
4041sub wait_for_tick() {
4042 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4043
4044 my $signal = new Coro::Signal;
4045 push @WAIT_FOR_TICK, $signal;
4046 $signal->wait;
4047}
4048
4049sub wait_for_tick_begin() {
4050 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4051
4052 my $signal = new Coro::Signal;
4053 push @WAIT_FOR_TICK_BEGIN, $signal;
4054 $signal->wait;
4055}
4056
4057sub tick {
4058 if ($Coro::current != $Coro::main) {
4059 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
4060 unless ++$bug_warning > 10;
4061 return;
4062 }
4063
4064 cf::server_tick; # one server iteration
4065
4066 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
4067
4068 if ($NOW >= $NEXT_RUNTIME_WRITE) {
4069 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
4070 Coro::async_pool {
4071 $Coro::current->{desc} = "runtime saver";
4072 write_runtime_sync
4073 or error "ERROR: unable to write runtime file: $!";
4074 };
4075 }
4076
4077 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4078 $sig->send;
4079 }
4080 while (my $sig = shift @WAIT_FOR_TICK) {
4081 $sig->send;
4082 }
4083
4084 $LOAD = ($NOW - $TICK_START) / $TICK;
4085 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4086
4087 if (0) {
4088 if ($NEXT_TICK) {
4089 my $jitter = $TICK_START - $NEXT_TICK;
4090 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4091 debug "jitter $JITTER\n";#d#
4092 }
4093 }
4094}
988 4095
989{ 4096{
990 my $path = cf::localdir . "/database.pst"; 4097 # configure BDB
991 4098
992 sub db_load() { 4099 BDB::min_parallel 16;
993 warn "loading database $path\n";#d# remove later 4100 BDB::max_poll_reqs $TICK * 0.1;
994 $DB = stat $path ? Storable::retrieve $path : { }; 4101 $AnyEvent::BDB::WATCHER->priority (1);
995 }
996 4102
997 my $pid; 4103 unless ($DB_ENV) {
4104 $DB_ENV = BDB::db_env_create;
4105 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4106 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4107 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4108 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4109 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
998 4110
999 sub db_save() { 4111 cf::sync_job {
1000 warn "saving database $path\n";#d# remove later
1001 waitpid $pid, 0 if $pid;
1002 if (0 == ($pid = fork)) {
1003 $DB->{_meta}{version} = 1;
1004 Storable::nstore $DB, "$path~";
1005 rename "$path~", $path;
1006 cf::_exit 0 if defined $pid;
1007 }
1008 }
1009
1010 my $dirty;
1011
1012 sub db_sync() {
1013 db_save if $dirty;
1014 undef $dirty;
1015 }
1016
1017 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1018 db_sync;
1019 });
1020
1021 sub db_dirty() {
1022 $dirty = 1;
1023 $idle->start;
1024 }
1025
1026 sub db_get($;$) {
1027 @_ >= 2
1028 ? $DB->{$_[0]}{$_[1]}
1029 : ($DB->{$_[0]} ||= { })
1030 }
1031
1032 sub db_put($$;$) {
1033 if (@_ >= 3) {
1034 $DB->{$_[0]}{$_[1]} = $_[2];
1035 } else { 4112 eval {
1036 $DB->{$_[0]} = $_[1]; 4113 BDB::db_env_open
1037 } 4114 $DB_ENV,
1038 db_dirty; 4115 $BDBDIR,
1039 } 4116 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
4117 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
4118 0666;
1040 4119
1041 cf::global->attach ( 4120 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1042 prio => 10000,
1043 on_cleanup => sub {
1044 db_sync;
1045 },
1046 );
1047}
1048
1049#############################################################################
1050# the server's main()
1051
1052sub cfg_load {
1053 open my $fh, "<:utf8", cf::confdir . "/config"
1054 or return;
1055
1056 local $/;
1057 *CFG = YAML::Syck::Load <$fh>;
1058}
1059
1060sub main {
1061 cfg_load;
1062 db_load;
1063 load_extensions;
1064 Event::loop;
1065}
1066
1067#############################################################################
1068# initialisation
1069
1070sub _perl_reload(&) {
1071 my ($msg) = @_;
1072
1073 $msg->("reloading...");
1074
1075 eval {
1076 # cancel all watchers
1077 for (Event::all_watchers) {
1078 $_->cancel if $_->data & WF_AUTOCANCEL;
1079 }
1080
1081 # unload all extensions
1082 for (@exts) {
1083 $msg->("unloading <$_>");
1084 unload_extension $_;
1085 }
1086
1087 # unload all modules loaded from $LIBDIR
1088 while (my ($k, $v) = each %INC) {
1089 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090
1091 $msg->("removing <$k>");
1092 delete $INC{$k};
1093
1094 $k =~ s/\.pm$//;
1095 $k =~ s/\//::/g;
1096
1097 if (my $cb = $k->can ("unload_module")) {
1098 $cb->();
1099 } 4121 };
1100 4122
1101 Symbol::delete_package $k; 4123 cf::cleanup "db_env_open(db): $@" if $@;
1102 } 4124 };
4125 }
1103 4126
1104 # sync database to disk 4127 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1105 cf::db_sync; 4128 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1106
1107 # get rid of safe::, as good as possible
1108 Symbol::delete_package "safe::$_"
1109 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
1110
1111 # remove register_script_function callbacks
1112 # TODO
1113
1114 # unload cf.pm "a bit"
1115 delete $INC{"cf.pm"};
1116
1117 # don't, removes xs symbols, too,
1118 # and global variables created in xs
1119 #Symbol::delete_package __PACKAGE__;
1120
1121 # reload cf.pm
1122 $msg->("reloading cf.pm");
1123 require cf;
1124
1125 # load config and database again
1126 cf::cfg_load;
1127 cf::db_load;
1128
1129 # load extensions
1130 $msg->("load extensions");
1131 cf::load_extensions;
1132
1133 # reattach attachments to objects
1134 $msg->("reattach");
1135 _global_reattach;
1136 }; 4129 };
1137 $msg->($@) if $@; 4130 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1138 4131 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1139 $msg->("reloaded");
1140};
1141
1142sub perl_reload() {
1143 _perl_reload {
1144 warn $_[0];
1145 print "$_[0]\n";
1146 }; 4132 };
4133 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4134 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4135 };
1147} 4136}
1148 4137
1149register "<global>", __PACKAGE__; 4138{
4139 # configure IO::AIO
1150 4140
1151register_command "perl-reload" => sub { 4141 IO::AIO::min_parallel 8;
4142 IO::AIO::max_poll_time $TICK * 0.1;
4143 undef $AnyEvent::AIO::WATCHER;
4144}
4145
4146our $_log_backtrace;
4147our $_log_backtrace_last;
4148
4149sub _log_backtrace {
1152 my ($who, $arg) = @_; 4150 my ($msg, @addr) = @_;
1153 4151
1154 if ($who->flag (FLAG_WIZ)) { 4152 $msg =~ s/\n$//;
1155 _perl_reload { 4153
1156 warn $_[0]; 4154 if ($_log_backtrace_last eq $msg) {
1157 $who->message ($_[0]); 4155 LOG llevInfo, "[ABT] $msg\n";
4156 LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
4157 # limit the # of concurrent backtraces
4158 } elsif ($_log_backtrace < 2) {
4159 $_log_backtrace_last = $msg;
4160 ++$_log_backtrace;
4161 my $perl_bt = Carp::longmess $msg;
4162 async {
4163 $Coro::current->{desc} = "abt $msg";
4164
4165 my @bt = fork_call {
4166 @addr = map { sprintf "%x", $_ } @addr;
4167 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4168 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4169 or die "addr2line: $!";
4170
4171 my @funcs;
4172 my @res = <$fh>;
4173 chomp for @res;
4174 while (@res) {
4175 my ($func, $line) = splice @res, 0, 2, ();
4176 push @funcs, "[$func] $line";
4177 }
4178
4179 @funcs
4180 };
4181
4182 LOG llevInfo, "[ABT] $perl_bt\n";
4183 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4184 LOG llevInfo, "[ABT] $_\n" for @bt;
4185 --$_log_backtrace;
1158 }; 4186 };
1159 } 4187 } else {
1160}; 4188 LOG llevInfo, "[ABT] $msg\n";
1161 4189 LOG llevInfo, "[ABT] [overload, suppressed]\n";
1162unshift @INC, $LIBDIR;
1163
1164$TICK_WATCHER = Event->timer (
1165 prio => 0,
1166 at => $NEXT_TICK || 1,
1167 data => WF_AUTOCANCEL,
1168 cb => sub {
1169 cf::server_tick; # one server iteration
1170
1171 my $NOW = Event::time;
1172 $NEXT_TICK += $TICK;
1173
1174 # if we are delayed by four ticks or more, skip them all
1175 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1176
1177 $TICK_WATCHER->at ($NEXT_TICK);
1178 $TICK_WATCHER->start;
1179 }, 4190 }
1180); 4191}
1181 4192
1182IO::AIO::max_poll_time $TICK * 0.2; 4193# load additional modules
4194require "cf/$_.pm" for @EXTRA_MODULES;
4195cf::_connect_to_perl_2;
1183 4196
1184Event->io (fd => IO::AIO::poll_fileno, 4197END { cf::emergency_save }
1185 poll => 'r',
1186 prio => 5,
1187 data => WF_AUTOCANCEL,
1188 cb => \&IO::AIO::poll_cb);
1189 4198
11901 41991
1191 4200

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