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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 1.551 by root, Sun May 16 13:48:07 2010 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify it under
7# the terms of the Affero GNU General Public License as published by the
8# Free Software Foundation, either version 3 of the License, or (at your
9# option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the Affero GNU General Public License
17# and the GNU General Public License along with this program. If not, see
18# <http://www.gnu.org/licenses/>.
19#
20# The authors can be reached via e-mail to <support@deliantra.net>
21#
22
1package cf; 23package cf;
24
25use common::sense;
2 26
3use Symbol; 27use Symbol;
4use List::Util; 28use List::Util;
5use Storable; 29use Socket;
30use EV;
6use Opcode; 31use Opcode;
7use Safe; 32use Safe;
8use Safe::Hole; 33use Safe::Hole;
34use Storable ();
35use Carp ();
9 36
37use Guard ();
38use Coro ();
39use Coro::State;
40use Coro::Handle;
41use Coro::EV;
42use Coro::AnyEvent;
43use Coro::Timer;
44use Coro::Signal;
45use Coro::Semaphore;
46use Coro::SemaphoreSet;
47use Coro::AnyEvent;
48use Coro::AIO;
49use Coro::BDB 1.6;
50use Coro::Storable;
51use Coro::Util ();
52
53use JSON::XS 2.01 ();
54use BDB ();
55use Data::Dumper;
56use Fcntl;
57use YAML::XS ();
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; 98our $DATADIR = datadir;
99our $LIBDIR = "$DATADIR/ext";
100our $PODDIR = "$DATADIR/pod";
101our $MAPDIR = "$DATADIR/" . mapdir;
102our $LOCALDIR = localdir;
103our $TMPDIR = "$LOCALDIR/" . tmpdir;
104our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
105our $PLAYERDIR = "$LOCALDIR/" . playerdir;
106our $RANDOMDIR = "$LOCALDIR/random";
107our $BDBDIR = "$LOCALDIR/db";
108our $PIDFILE = "$LOCALDIR/pid";
109our $RUNTIMEFILE = "$LOCALDIR/runtime";
110
111our %RESOURCE; # unused
112
113our $OUTPUT_RATE_MIN = 3000;
114our $OUTPUT_RATE_MAX = 1000000;
115
116our $MAX_LINKS = 32; # how many chained exits to follow
117our $VERBOSE_IO = 1;
118
119our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
120our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34our $NEXT_TICK; 121our $NEXT_TICK;
122our $USE_FSYNC = 1; # use fsync to write maps - default on
123
124our $BDB_DEADLOCK_WATCHER;
125our $BDB_CHECKPOINT_WATCHER;
126our $BDB_TRICKLE_WATCHER;
127our $DB_ENV;
128
129our @EXTRA_MODULES = qw(pod match mapscript incloader);
35 130
36our %CFG; 131our %CFG;
37 132
38our $UPTIME; $UPTIME ||= time; 133our $UPTIME; $UPTIME ||= time;
134our $RUNTIME;
135our $NOW;
136
137our (%PLAYER, %PLAYER_LOADING); # all users
138our (%MAP, %MAP_LOADING ); # all maps
139our $LINK_MAP; # the special {link} map, which is always available
140
141# used to convert map paths into valid unix filenames by replacing / by ∕
142our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
143
144our $LOAD; # a number between 0 (idle) and 1 (too many objects)
145our $LOADAVG; # same thing, but with alpha-smoothing
146our $JITTER; # average jitter
147our $TICK_START; # for load detecting purposes
148
149our @POST_INIT;
150
151our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
152our $REALLY_UNLOOP; # never set to true, please :)
153
154binmode STDOUT;
155binmode STDERR;
156
157# read virtual server time, if available
158unless ($RUNTIME || !-e $RUNTIMEFILE) {
159 open my $fh, "<", $RUNTIMEFILE
160 or die "unable to read $RUNTIMEFILE file: $!";
161 $RUNTIME = <$fh> + 0.;
162}
163
164eval "sub TICK() { $TICK } 1" or die;
165
166mkdir $_
167 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
168
169our $EMERGENCY_POSITION;
170
171sub cf::map::normalise;
172
173sub in_main() {
174 $Coro::current == $Coro::main
175}
39 176
40############################################################################# 177#############################################################################
41 178
179%REFLECT = ();
180for (@REFLECT) {
181 my $reflect = JSON::XS::decode_json $_;
182 $REFLECT{$reflect->{class}} = $reflect;
183}
184
185# this is decidedly evil
186$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
187
188#############################################################################
189
42=head2 GLOBAL VARIABLES 190=head2 GLOBAL VARIABLES
43 191
44=over 4 192=over 4
45 193
46=item $cf::UPTIME 194=item $cf::UPTIME
47 195
48The timestamp of the server start (so not actually an uptime). 196The timestamp of the server start (so not actually an uptime).
49 197
50=item $cf::LIBDIR 198=item $cf::RUNTIME
51 199
52The perl library directory, where extensions and cf-specific modules can 200The 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. 201every server tick.
202
203=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
204$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
205$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
206
207Various directories - "/etc", read-only install directory, perl-library
208directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
209unique-items directory, player file directory, random maps directory and
210database environment.
211
212=item $cf::NOW
213
214The time of the last (current) server tick.
54 215
55=item $cf::TICK 216=item $cf::TICK
56 217
57The interval between server ticks, in seconds. 218The interval between server ticks, in seconds.
58 219
220=item $cf::LOADAVG
221
222The current CPU load on the server (alpha-smoothed), as a value between 0
223(none) and 1 (overloaded), indicating how much time is spent on processing
224objects per tick. Healthy values are < 0.5.
225
226=item $cf::LOAD
227
228The raw value load value from the last tick.
229
59=item %cf::CFG 230=item %cf::CFG
60 231
61Configuration for the server, loaded from C</etc/crossfire/config>, or 232Configuration for the server, loaded from C</etc/deliantra-server/config>, or
62from wherever your confdir points to. 233from wherever your confdir points to.
63 234
235=item cf::wait_for_tick, cf::wait_for_tick_begin
236
237These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
238returns directly I<after> the tick processing (and consequently, can only wake one thread
239per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
240
241=cut
242
243sub wait_for_tick();
244sub wait_for_tick_begin();
245
246=item @cf::INVOKE_RESULTS
247
248This array contains the results of the last C<invoke ()> call. When
249C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
250that call.
251
252=item %cf::REFLECT
253
254Contains, for each (C++) class name, a hash reference with information
255about object members (methods, scalars, arrays and flags) and other
256metadata, which is useful for introspection.
257
64=back 258=back
65 259
66=cut 260=cut
67 261
68BEGIN { 262sub error(@) { LOG llevError, join "", @_ }
69 *CORE::GLOBAL::warn = sub { 263sub warn (@) { LOG llevWarn , join "", @_ }
264sub info (@) { LOG llevInfo , join "", @_ }
265sub debug(@) { LOG llevDebug, join "", @_ }
266sub trace(@) { LOG llevTrace, join "", @_ }
267
268$Coro::State::WARNHOOK = sub {
70 my $msg = join "", @_; 269 my $msg = join "", @_;
270
71 $msg .= "\n" 271 $msg .= "\n"
72 unless $msg =~ /\n$/; 272 unless $msg =~ /\n$/;
73 273
74 print STDERR "cfperl: $msg"; 274 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
75 LOG llevError, "cfperl: $msg"; 275
76 }; 276 LOG llevWarn, $msg;
77} 277};
278
279$Coro::State::DIEHOOK = sub {
280 return unless $^S eq 0; # "eq", not "=="
281
282 error Carp::longmess $_[0];
283
284 if (in_main) {#d#
285 error "DIEHOOK called in main context, Coro bug?\n";#d#
286 return;#d#
287 }#d#
288
289 # kill coroutine otherwise
290 Coro::terminate
291};
78 292
79@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 293@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 294@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
81@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 295@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
82@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 296@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
83@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 297@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
298@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
84@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 299@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
85 300
86# we bless all objects into (empty) derived classes to force a method lookup 301# we bless all objects into (empty) derived classes to force a method lookup
87# within the Safe compartment. 302# within the Safe compartment.
88for my $pkg (qw( 303for my $pkg (qw(
89 cf::global 304 cf::global cf::attachable
90 cf::object cf::object::player 305 cf::object cf::object::player
91 cf::client cf::player 306 cf::client cf::player
92 cf::arch cf::living 307 cf::arch cf::living
308 cf::map cf::mapspace
93 cf::map cf::party cf::region 309 cf::party cf::region
94)) { 310)) {
95 no strict 'refs';
96 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 311 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
97} 312}
98 313
99$Event::DIED = sub { 314$EV::DIED = sub {
100 warn "error in event callback: @_"; 315 Carp::cluck "error in event callback: @_";
101}; 316};
102 317
103my %ext_pkg; 318#############################################################################
104my @exts;
105my @hook;
106 319
107=head2 UTILITY FUNCTIONS 320=head2 UTILITY FUNCTIONS
108 321
109=over 4 322=over 4
110 323
111=cut 324=item dumpval $ref
112 325
113use JSON::Syck (); # TODO# replace by JSON::PC once working 326=cut
114 327
328sub dumpval {
329 eval {
330 local $SIG{__DIE__};
331 my $d;
332 if (1) {
333 $d = new Data::Dumper([$_[0]], ["*var"]);
334 $d->Terse(1);
335 $d->Indent(2);
336 $d->Quotekeys(0);
337 $d->Useqq(1);
338 #$d->Bless(...);
339 $d->Seen($_[1]) if @_ > 1;
340 $d = $d->Dump();
341 }
342 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
343 $d
344 } || "[unable to dump $_[0]: '$@']";
345}
346
115=item $ref = cf::from_json $json 347=item $ref = cf::decode_json $json
116 348
117Converts a JSON string into the corresponding perl data structure. 349Converts a JSON string into the corresponding perl data structure.
118 350
119=cut
120
121sub from_json($) {
122 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
123 JSON::Syck::Load $_[0]
124}
125
126=item $json = cf::to_json $ref 351=item $json = cf::encode_json $ref
127 352
128Converts a perl data structure into its JSON representation. 353Converts a perl data structure into its JSON representation.
129 354
130=cut 355=cut
131 356
132sub to_json($) { 357our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
133 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 358
134 JSON::Syck::Dump $_[0] 359sub encode_json($) { $json_coder->encode ($_[0]) }
360sub decode_json($) { $json_coder->decode ($_[0]) }
361
362=item $ref = cf::yaml_load $scalar
363
364Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
365
366=cut
367
368sub fork_call(&@);
369
370sub yaml_load($) {
371 fork_call { YAML::XS::Load $_[0] } @_
372}
373
374=item cf::post_init { BLOCK }
375
376Execute the given codeblock, I<after> all extensions have been (re-)loaded,
377but I<before> the server starts ticking again.
378
379The codeblock will have a single boolean argument to indicate whether this
380is a reload or not.
381
382=cut
383
384sub post_init(&) {
385 push @POST_INIT, shift;
386}
387
388sub _post_init {
389 trace "running post_init jobs";
390
391 # run them in parallel...
392
393 my @join;
394
395 while () {
396 push @join, map &Coro::async ($_, 0), @POST_INIT;
397 @POST_INIT = ();
398
399 @join or last;
400
401 (pop @join)->join;
402 }
403}
404
405=item cf::lock_wait $string
406
407Wait until the given lock is available. See cf::lock_acquire.
408
409=item my $lock = cf::lock_acquire $string
410
411Wait until the given lock is available and then acquires it and returns
412a L<Guard> object. If the guard object gets destroyed (goes out of scope,
413for example when the coroutine gets canceled), the lock is automatically
414returned.
415
416Locks are *not* recursive, locking from the same coro twice results in a
417deadlocked coro.
418
419Lock names should begin with a unique identifier (for example, cf::map::find
420uses map_find and cf::map::load uses map_load).
421
422=item $locked = cf::lock_active $string
423
424Return true if the lock is currently active, i.e. somebody has locked it.
425
426=cut
427
428our $LOCKS = new Coro::SemaphoreSet;
429
430sub lock_wait($) {
431 $LOCKS->wait ($_[0]);
432}
433
434sub lock_acquire($) {
435 $LOCKS->guard ($_[0])
436}
437
438sub lock_active($) {
439 $LOCKS->count ($_[0]) < 1
440}
441
442sub freeze_mainloop {
443 tick_inhibit_inc;
444
445 &Guard::guard (\&tick_inhibit_dec);
446}
447
448=item cf::periodic $interval, $cb
449
450Like EV::periodic, but randomly selects a starting point so that the actions
451get spread over time.
452
453=cut
454
455sub periodic($$) {
456 my ($interval, $cb) = @_;
457
458 my $start = rand List::Util::min 180, $interval;
459
460 EV::periodic $start, $interval, 0, $cb
461}
462
463=item cf::get_slot $time[, $priority[, $name]]
464
465Allocate $time seconds of blocking CPU time at priority C<$priority>:
466This call blocks and returns only when you have at least C<$time> seconds
467of cpu time till the next tick. The slot is only valid till the next cede.
468
469The optional C<$name> can be used to identify the job to run. It might be
470used for statistical purposes and should identify the same time-class.
471
472Useful for short background jobs.
473
474=cut
475
476our @SLOT_QUEUE;
477our $SLOT_QUEUE;
478our $SLOT_DECAY = 0.9;
479
480$SLOT_QUEUE->cancel if $SLOT_QUEUE;
481$SLOT_QUEUE = Coro::async {
482 $Coro::current->desc ("timeslot manager");
483
484 my $signal = new Coro::Signal;
485 my $busy;
486
487 while () {
488 next_job:
489
490 my $avail = cf::till_tick;
491
492 for (0 .. $#SLOT_QUEUE) {
493 if ($SLOT_QUEUE[$_][0] <= $avail) {
494 $busy = 0;
495 my $job = splice @SLOT_QUEUE, $_, 1, ();
496 $job->[2]->send;
497 Coro::cede;
498 goto next_job;
499 } else {
500 $SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
501 }
502 }
503
504 if (@SLOT_QUEUE) {
505 # we do not use wait_for_tick() as it returns immediately when tick is inactive
506 push @cf::WAIT_FOR_TICK, $signal;
507 $signal->wait;
508 } else {
509 $busy = 0;
510 Coro::schedule;
511 }
512 }
513};
514
515sub get_slot($;$$) {
516 return if tick_inhibit || $Coro::current == $Coro::main;
517
518 my ($time, $pri, $name) = @_;
519
520 $time = clamp $time, 0.01, $TICK * .6;
521
522 my $sig = new Coro::Signal;
523
524 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
525 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
526 $SLOT_QUEUE->ready;
527 $sig->wait;
528}
529
530=item cf::async { BLOCK }
531
532Currently the same as Coro::async_pool, meaning you cannot use
533C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
534thing you are allowed to do is call C<prio> on it.
535
536=cut
537
538BEGIN { *async = \&Coro::async_pool }
539
540=item cf::sync_job { BLOCK }
541
542The design of Deliantra requires that the main coroutine ($Coro::main)
543is always able to handle events or runnable, as Deliantra is only
544partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
545acceptable.
546
547If it must be done, put the blocking parts into C<sync_job>. This will run
548the given BLOCK in another coroutine while waiting for the result. The
549server will be frozen during this time, so the block should either finish
550fast or be very important.
551
552=cut
553
554sub sync_job(&) {
555 my ($job) = @_;
556
557 if (in_main) {
558 my $time = AE::time;
559
560 # this is the main coro, too bad, we have to block
561 # till the operation succeeds, freezing the server :/
562
563 #LOG llevError, Carp::longmess "sync job";#d#
564
565 my $freeze_guard = freeze_mainloop;
566
567 my $busy = 1;
568 my @res;
569
570 (async {
571 $Coro::current->desc ("sync job coro");
572 @res = eval { $job->() };
573 error $@ if $@;
574 undef $busy;
575 })->prio (Coro::PRIO_MAX);
576
577 while ($busy) {
578 if (Coro::nready) {
579 Coro::cede_notself;
580 } else {
581 EV::loop EV::LOOP_ONESHOT;
582 }
583 }
584
585 my $time = AE::time - $time;
586
587 $TICK_START += $time; # do not account sync jobs to server load
588
589 wantarray ? @res : $res[0]
590 } else {
591 # we are in another coroutine, how wonderful, everything just works
592
593 $job->()
594 }
595}
596
597=item $coro = cf::async_ext { BLOCK }
598
599Like async, but this coro is automatically being canceled when the
600extension calling this is being unloaded.
601
602=cut
603
604sub async_ext(&) {
605 my $cb = shift;
606
607 my $coro = &Coro::async ($cb);
608
609 $coro->on_destroy (sub {
610 delete $EXT_CORO{$coro+0};
611 });
612 $EXT_CORO{$coro+0} = $coro;
613
614 $coro
615}
616
617=item fork_call { }, @args
618
619Executes the given code block with the given arguments in a seperate
620process, returning the results. Everything must be serialisable with
621Coro::Storable. May, of course, block. Note that the executed sub may
622never block itself or use any form of event handling.
623
624=cut
625
626sub post_fork {
627 reset_signals;
628}
629
630sub fork_call(&@) {
631 my ($cb, @args) = @_;
632
633 # we seemingly have to make a local copy of the whole thing,
634 # otherwise perl prematurely frees the stuff :/
635 # TODO: investigate and fix (likely this will be rather laborious)
636
637 my @res = Coro::Util::fork_eval {
638 cf::post_fork;
639 &$cb
640 } @args;
641
642 wantarray ? @res : $res[-1]
643}
644
645sub objinfo {
646 (
647 "counter value" => cf::object::object_count,
648 "objects created" => cf::object::create_count,
649 "objects destroyed" => cf::object::destroy_count,
650 "freelist size" => cf::object::free_count,
651 "allocated objects" => cf::object::objects_size,
652 "active objects" => cf::object::actives_size,
653 )
654}
655
656=item $coin = coin_from_name $name
657
658=cut
659
660our %coin_alias = (
661 "silver" => "silvercoin",
662 "silvercoin" => "silvercoin",
663 "silvercoins" => "silvercoin",
664 "gold" => "goldcoin",
665 "goldcoin" => "goldcoin",
666 "goldcoins" => "goldcoin",
667 "platinum" => "platinacoin",
668 "platinumcoin" => "platinacoin",
669 "platinumcoins" => "platinacoin",
670 "platina" => "platinacoin",
671 "platinacoin" => "platinacoin",
672 "platinacoins" => "platinacoin",
673 "royalty" => "royalty",
674 "royalties" => "royalty",
675);
676
677sub coin_from_name($) {
678 $coin_alias{$_[0]}
679 ? cf::arch::find $coin_alias{$_[0]}
680 : undef
681}
682
683=item $value = cf::db_get $family => $key
684
685Returns a single value from the environment database.
686
687=item cf::db_put $family => $key => $value
688
689Stores the given C<$value> in the family. It can currently store binary
690data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
691
692=item $db = cf::db_table "name"
693
694Create and/or open a new database table. The string must not be "db" and must be unique
695within each server.
696
697=cut
698
699sub db_table($) {
700 cf::error "db_get called from main context"
701 if $Coro::current == $Coro::main;
702
703 my ($name) = @_;
704 my $db = BDB::db_create $DB_ENV;
705
706 eval {
707 $db->set_flags (BDB::CHKSUM);
708
709 utf8::encode $name;
710 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
711 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
712 cf::cleanup "db_open(db): $!" if $!;
713 };
714 cf::cleanup "db_open(db): $@" if $@;
715
716 $db
717}
718
719our $DB;
720
721sub db_init {
722 $DB ||= db_table "db";
723}
724
725sub db_get($$) {
726 my $key = "$_[0]/$_[1]";
727
728 cf::error "db_get called from main context"
729 if $Coro::current == $Coro::main;
730
731 BDB::db_get $DB, undef, $key, my $data;
732
733 $! ? ()
734 : $data
735}
736
737sub db_put($$$) {
738 BDB::dbreq_pri 4;
739 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
740}
741
742=item cf::cache $id => [$paths...], $processversion => $process
743
744Generic caching function that returns the value of the resource $id,
745caching and regenerating as required.
746
747This function can block.
748
749=cut
750
751sub cache {
752 my ($id, $src, $processversion, $process) = @_;
753
754 my $meta =
755 join "\x00",
756 $processversion,
757 map {
758 aio_stat $_
759 and Carp::croak "$_: $!";
760
761 ($_, (stat _)[7,9])
762 } @$src;
763
764 my $dbmeta = db_get cache => "$id/meta";
765 if ($dbmeta ne $meta) {
766 # changed, we may need to process
767
768 my @data;
769 my $md5;
770
771 for (0 .. $#$src) {
772 0 <= aio_load $src->[$_], $data[$_]
773 or Carp::croak "$src->[$_]: $!";
774 }
775
776 # if processing is expensive, check
777 # checksum first
778 if (1) {
779 $md5 =
780 join "\x00",
781 $processversion,
782 map {
783 cf::cede_to_tick;
784 ($src->[$_], Digest::MD5::md5_hex $data[$_])
785 } 0.. $#$src;
786
787
788 my $dbmd5 = db_get cache => "$id/md5";
789 if ($dbmd5 eq $md5) {
790 db_put cache => "$id/meta", $meta;
791
792 return db_get cache => "$id/data";
793 }
794 }
795
796 my $t1 = Time::HiRes::time;
797 my $data = $process->(\@data);
798 my $t2 = Time::HiRes::time;
799
800 info "cache: '$id' processed in ", $t2 - $t1, "s\n";
801
802 db_put cache => "$id/data", $data;
803 db_put cache => "$id/md5" , $md5;
804 db_put cache => "$id/meta", $meta;
805
806 return $data;
807 }
808
809 db_get cache => "$id/data"
810}
811
812=item cf::datalog type => key => value, ...
813
814Log a datalog packet of the given type with the given key-value pairs.
815
816=cut
817
818sub datalog($@) {
819 my ($type, %kv) = @_;
820 info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
135} 821}
136 822
137=back 823=back
138 824
139=cut 825=cut
140 826
141############################################################################# 827#############################################################################
142 828
143=head2 ATTACHABLE OBJECTS 829=head2 ATTACHABLE OBJECTS
144 830
145Many objects in crossfire are so-called attachable objects. That means you can 831Many objects in deliantra are so-called attachable objects. That means you can
146attach callbacks/event handlers (a collection of which is called an "attachment") 832attach callbacks/event handlers (a collection of which is called an "attachment")
147to it. All such attachable objects support the following methods. 833to it. All such attachable objects support the following methods.
148 834
149In the following description, CLASS can be any of C<global>, C<object> 835In 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 836C<player>, C<client> or C<map> (i.e. the attachable objects in
151crossfire+). 837Deliantra).
152 838
153=over 4 839=over 4
154 840
155=item $attachable->attach ($attachment, key => $value...) 841=item $attachable->attach ($attachment, key => $value...)
156 842
… …
200=item cf::CLASS::attachment $name, ... 886=item cf::CLASS::attachment $name, ...
201 887
202Register an attachment by C<$name> through which attachable objects of the 888Register an attachment by C<$name> through which attachable objects of the
203given CLASS can refer to this attachment. 889given CLASS can refer to this attachment.
204 890
205Some classes such as crossfire maps and objects can specify attachments 891Some classes such as deliantra maps and objects can specify attachments
206that are attached at load/instantiate time, thus the need for a name. 892that are attached at load/instantiate time, thus the need for a name.
207 893
208These calls expect any number of the following handler/hook descriptions: 894These calls expect any number of the following handler/hook descriptions:
209 895
210=over 4 896=over 4
… …
249 my ($self, $victim) = @_; 935 my ($self, $victim) = @_;
250 ... 936 ...
251 } 937 }
252 } 938 }
253 939
940=item $attachable->valid
941
942Just because you have a perl object does not mean that the corresponding
943C-level object still exists. If you try to access an object that has no
944valid C counterpart anymore you get an exception at runtime. This method
945can be used to test for existence of the C object part without causing an
946exception.
947
254=cut 948=cut
255 949
256# the following variables are defined in .xs and must not be re-created 950# the following variables are defined in .xs and must not be re-created
257our @CB_GLOBAL = (); # registry for all global events 951our @CB_GLOBAL = (); # registry for all global events
952our @CB_ATTACHABLE = (); # registry for all attachables
258our @CB_OBJECT = (); # all objects (should not be used except in emergency) 953our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259our @CB_PLAYER = (); 954our @CB_PLAYER = ();
260our @CB_CLIENT = (); 955our @CB_CLIENT = ();
261our @CB_TYPE = (); # registry for type (cf-object class) based events 956our @CB_TYPE = (); # registry for type (cf-object class) based events
262our @CB_MAP = (); 957our @CB_MAP = ();
263 958
264my %attachment; 959my %attachment;
960
961sub cf::attachable::thawer_merge {
962 # simply override everything except _meta
963 local $_[0]{_meta};
964 %{$_[0]} = %{$_[1]};
965}
265 966
266sub _attach_cb($$$$) { 967sub _attach_cb($$$$) {
267 my ($registry, $event, $prio, $cb) = @_; 968 my ($registry, $event, $prio, $cb) = @_;
268 969
269 use sort 'stable'; 970 use sort 'stable';
… …
272 973
273 @{$registry->[$event]} = sort 974 @{$registry->[$event]} = sort
274 { $a->[0] cmp $b->[0] } 975 { $a->[0] cmp $b->[0] }
275 @{$registry->[$event] || []}, $cb; 976 @{$registry->[$event] || []}, $cb;
276} 977}
978
979# hack
980my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277 981
278# attach handles attaching event callbacks 982# attach handles attaching event callbacks
279# the only thing the caller has to do is pass the correct 983# the only thing the caller has to do is pass the correct
280# registry (== where the callback attaches to). 984# registry (== where the callback attaches to).
281sub _attach { 985sub _attach {
… …
283 987
284 my $object_type; 988 my $object_type;
285 my $prio = 0; 989 my $prio = 0;
286 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 990 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287 991
992 #TODO: get rid of this hack
993 if ($attachable_klass{$klass}) {
994 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
995 }
996
288 while (@arg) { 997 while (@arg) {
289 my $type = shift @arg; 998 my $type = shift @arg;
290 999
291 if ($type eq "prio") { 1000 if ($type eq "prio") {
292 $prio = shift @arg; 1001 $prio = shift @arg;
… …
296 $registry = $CB_TYPE[$object_type] ||= []; 1005 $registry = $CB_TYPE[$object_type] ||= [];
297 1006
298 } elsif ($type eq "subtype") { 1007 } elsif ($type eq "subtype") {
299 defined $object_type or Carp::croak "subtype specified without type"; 1008 defined $object_type or Carp::croak "subtype specified without type";
300 my $object_subtype = shift @arg; 1009 my $object_subtype = shift @arg;
301 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 1010 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
302 1011
303 } elsif ($type eq "package") { 1012 } elsif ($type eq "package") {
304 my $pkg = shift @arg; 1013 my $pkg = shift @arg;
305 1014
306 while (my ($name, $id) = each %cb_id) { 1015 while (my ($name, $id) = each %cb_id) {
… …
311 1020
312 } elsif (exists $cb_id{$type}) { 1021 } elsif (exists $cb_id{$type}) {
313 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg; 1022 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
314 1023
315 } elsif (ref $type) { 1024 } elsif (ref $type) {
316 warn "attaching objects not supported, ignoring.\n"; 1025 error "attaching objects not supported, ignoring.\n";
317 1026
318 } else { 1027 } else {
319 shift @arg; 1028 shift @arg;
320 warn "attach argument '$type' not supported, ignoring.\n"; 1029 error "attach argument '$type' not supported, ignoring.\n";
321 } 1030 }
322 } 1031 }
323} 1032}
324 1033
325sub _object_attach { 1034sub _object_attach {
… …
335 _attach $registry, $klass, @attach; 1044 _attach $registry, $klass, @attach;
336 } 1045 }
337 1046
338 $obj->{$name} = \%arg; 1047 $obj->{$name} = \%arg;
339 } else { 1048 } else {
340 warn "object uses attachment '$name' that is not available, postponing.\n"; 1049 info "object uses attachment '$name' which is not available, postponing.\n";
341 } 1050 }
342 1051
343 $obj->{_attachment}{$name} = undef; 1052 $obj->{_attachment}{$name} = undef;
344} 1053}
345 1054
… …
347 if (ref $_[0]) { 1056 if (ref $_[0]) {
348 _object_attach @_; 1057 _object_attach @_;
349 } else { 1058 } else {
350 _attach shift->_attach_registry, @_; 1059 _attach shift->_attach_registry, @_;
351 } 1060 }
1061 _recalc_want;
352}; 1062};
353 1063
354# all those should be optimised 1064# all those should be optimised
355sub cf::attachable::detach { 1065sub cf::attachable::detach {
356 my ($obj, $name) = @_; 1066 my ($obj, $name) = @_;
… …
359 delete $obj->{_attachment}{$name}; 1069 delete $obj->{_attachment}{$name};
360 reattach ($obj); 1070 reattach ($obj);
361 } else { 1071 } else {
362 Carp::croak "cannot, currently, detach class attachments"; 1072 Carp::croak "cannot, currently, detach class attachments";
363 } 1073 }
1074 _recalc_want;
364}; 1075};
365 1076
366sub cf::attachable::attached { 1077sub cf::attachable::attached {
367 my ($obj, $name) = @_; 1078 my ($obj, $name) = @_;
368 1079
369 exists $obj->{_attachment}{$name} 1080 exists $obj->{_attachment}{$name}
370} 1081}
371 1082
372for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 1083for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373 eval "#line " . __LINE__ . " 'cf.pm' 1084 eval "#line " . __LINE__ . " 'cf.pm'
374 sub cf::\L$klass\E::_attach_registry { 1085 sub cf::\L$klass\E::_attach_registry {
375 (\\\@CB_$klass, KLASS_$klass) 1086 (\\\@CB_$klass, KLASS_$klass)
376 } 1087 }
377 1088
… …
383 "; 1094 ";
384 die if $@; 1095 die if $@;
385} 1096}
386 1097
387our $override; 1098our $override;
388our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 1099our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
389 1100
390sub override { 1101sub override {
391 $override = 1; 1102 $override = 1;
392 @invoke_results = (); 1103 @INVOKE_RESULTS = (@_);
393} 1104}
394 1105
395sub do_invoke { 1106sub do_invoke {
396 my $event = shift; 1107 my $event = shift;
397 my $callbacks = shift; 1108 my $callbacks = shift;
398 1109
399 @invoke_results = (); 1110 @INVOKE_RESULTS = ();
400 1111
401 local $override; 1112 local $override;
402 1113
403 for (@$callbacks) { 1114 for (@$callbacks) {
404 eval { &{$_->[1]} }; 1115 eval { &{$_->[1]} };
405 1116
406 if ($@) { 1117 if ($@) {
407 warn "$@";
408 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; 1118 error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
409 override; 1119 override;
410 } 1120 }
411 1121
412 return 1 if $override; 1122 return 1 if $override;
413 } 1123 }
414 1124
415 0 1125 0
416} 1126}
417 1127
418=item $bool = cf::invoke EVENT_GLOBAL_XXX, ... 1128=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
419 1129
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, ...) 1130=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425 1131
426=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428Generate a global/object/player/map-specific event with the given arguments. 1132Generate an object-specific event with the given arguments.
429 1133
430This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be 1134This 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 1135removed in future versions), and there is no public API to access override
432results (if you must, access C<@cf::invoke_results> directly). 1136results (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 1137
454=back 1138=back
455 1139
456=cut 1140=cut
457 1141
458############################################################################# 1142#############################################################################
459# object support 1143# object support
460 1144
461sub instantiate { 1145sub _object_equal($$);
1146sub _object_equal($$) {
1147 my ($a, $b) = @_;
1148
1149 return 0 unless (ref $a) eq (ref $b);
1150
1151 if ("HASH" eq ref $a) {
1152 my @ka = keys %$a;
1153 my @kb = keys %$b;
1154
1155 return 0 if @ka != @kb;
1156
1157 for (0 .. $#ka) {
1158 return 0 unless $ka[$_] eq $kb[$_];
1159 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1160 }
1161
1162 } elsif ("ARRAY" eq ref $a) {
1163
1164 return 0 if @$a != @$b;
1165
1166 for (0 .. $#$a) {
1167 return 0 unless _object_equal $a->[$_], $b->[$_];
1168 }
1169
1170 } elsif ($a ne $b) {
1171 return 0;
1172 }
1173
1174 1
1175}
1176
1177our $SLOW_MERGES;#d#
1178sub _can_merge {
462 my ($obj, $data) = @_; 1179 my ($ob1, $ob2) = @_;
463 1180
464 $data = from_json $data; 1181 ++$SLOW_MERGES;#d#
465 1182
466 for (@$data) { 1183 # we do the slow way here
467 my ($name, $args) = @$_; 1184 return _object_equal $ob1, $ob2
468
469 $obj->attach ($name, %{$args || {} });
470 }
471} 1185}
472 1186
473# basically do the same as instantiate, without calling instantiate
474sub reattach { 1187sub reattach {
1188 # basically do the same as instantiate, without calling instantiate
475 my ($obj) = @_; 1189 my ($obj) = @_;
1190
1191 # no longer needed after getting rid of delete_package?
1192 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1193
476 my $registry = $obj->registry; 1194 my $registry = $obj->registry;
477 1195
478 @$registry = (); 1196 @$registry = ();
479 1197
480 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 1198 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
… …
484 for (@$attach) { 1202 for (@$attach) {
485 my ($klass, @attach) = @$_; 1203 my ($klass, @attach) = @$_;
486 _attach $registry, $klass, @attach; 1204 _attach $registry, $klass, @attach;
487 } 1205 }
488 } else { 1206 } else {
489 warn "object uses attachment '$name' that is not available, postponing.\n"; 1207 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 } 1208 }
514
515 rename "$filename~", $filename;
516 } else {
517 warn "FATAL: $filename~: $!\n";
518 }
519 } else {
520 unlink $filename;
521 unlink "$filename.pst";
522 } 1209 }
523} 1210}
524 1211
525sub object_freezer_as_string { 1212cf::attachable->attach (
526 my ($rdata, $objs) = @_;
527
528 use Data::Dumper;
529
530 $$rdata . Dumper $objs
531}
532
533sub object_thawer_load {
534 my ($filename) = @_;
535
536 local $/;
537
538 my $av;
539
540 #TODO: use sysread etc.
541 if (open my $data, "<:raw:perlio", $filename) {
542 $data = <$data>;
543 if (open my $pst, "<:raw:perlio", "$filename.pst") {
544 $av = eval { (Storable::thaw <$pst>)->{objs} };
545 }
546 return ($data, $av);
547 }
548
549 ()
550}
551
552cf::object->attach (
553 prio => -1000000, 1213 prio => -1000000,
1214 on_instantiate => sub {
1215 my ($obj, $data) = @_;
1216
1217 $data = decode_json $data;
1218
1219 for (@$data) {
1220 my ($name, $args) = @$_;
1221
1222 $obj->attach ($name, %{$args || {} });
1223 }
1224 },
1225 on_reattach => \&reattach,
554 on_clone => sub { 1226 on_clone => sub {
555 my ($src, $dst) = @_; 1227 my ($src, $dst) = @_;
556 1228
557 @{$dst->registry} = @{$src->registry}; 1229 @{$dst->registry} = @{$src->registry};
558 1230
… …
561 %{$dst->{_attachment}} = %{$src->{_attachment}} 1233 %{$dst->{_attachment}} = %{$src->{_attachment}}
562 if exists $src->{_attachment}; 1234 if exists $src->{_attachment};
563 }, 1235 },
564); 1236);
565 1237
1238sub object_freezer_save {
1239 my ($filename, $rdata, $objs) = @_;
1240
1241 sync_job {
1242 if (length $$rdata) {
1243 utf8::decode (my $decname = $filename);
1244 trace sprintf "saving %s (%d,%d)\n",
1245 $decname, length $$rdata, scalar @$objs
1246 if $VERBOSE_IO;
1247
1248 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1249 aio_chmod $fh, SAVE_MODE;
1250 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1251 if ($cf::USE_FSYNC) {
1252 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1253 aio_fsync $fh;
1254 }
1255 aio_close $fh;
1256
1257 if (@$objs) {
1258 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1259 aio_chmod $fh, SAVE_MODE;
1260 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1261 aio_write $fh, 0, (length $data), $data, 0;
1262 if ($cf::USE_FSYNC) {
1263 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1264 aio_fsync $fh;
1265 }
1266 aio_close $fh;
1267 aio_rename "$filename.pst~", "$filename.pst";
1268 }
1269 } else {
1270 aio_unlink "$filename.pst";
1271 }
1272
1273 aio_rename "$filename~", $filename;
1274
1275 $filename =~ s%/[^/]+$%%;
1276 aio_pathsync $filename if $cf::USE_FSYNC;
1277 } else {
1278 error "unable to save objects: $filename~: $!\n";
1279 }
1280 } else {
1281 aio_unlink $filename;
1282 aio_unlink "$filename.pst";
1283 }
1284 };
1285}
1286
1287sub object_freezer_as_string {
1288 my ($rdata, $objs) = @_;
1289
1290 use Data::Dumper;
1291
1292 $$rdata . Dumper $objs
1293}
1294
1295sub object_thawer_load {
1296 my ($filename) = @_;
1297
1298 my ($data, $av);
1299
1300 (aio_load $filename, $data) >= 0
1301 or return;
1302
1303 unless (aio_stat "$filename.pst") {
1304 (aio_load "$filename.pst", $av) >= 0
1305 or return;
1306
1307 my $st = eval { Coro::Storable::thaw $av };
1308 $av = $st->{objs};
1309 }
1310
1311 utf8::decode (my $decname = $filename);
1312 trace sprintf "loading %s (%d,%d)\n",
1313 $decname, length $data, scalar @{$av || []}
1314 if $VERBOSE_IO;
1315
1316 ($data, $av)
1317}
1318
1319=head2 COMMAND CALLBACKS
1320
1321=over 4
1322
1323=cut
1324
566############################################################################# 1325#############################################################################
567# command handling &c 1326# command handling &c
568 1327
569=item cf::register_command $name => \&callback($ob,$args); 1328=item cf::register_command $name => \&callback($ob,$args);
570 1329
… …
582 push @{ $COMMAND{$name} }, [$caller, $cb]; 1341 push @{ $COMMAND{$name} }, [$caller, $cb];
583} 1342}
584 1343
585=item cf::register_extcmd $name => \&callback($pl,$packet); 1344=item cf::register_extcmd $name => \&callback($pl,$packet);
586 1345
587Register a callbackf ro execution when the client sends an extcmd packet. 1346Register a callback for execution when the client sends an (synchronous)
1347extcmd packet. Ext commands will be processed in the order they are
1348received by the server, like other user commands. The first argument is
1349the logged-in player. Ext commands can only be processed after a player
1350has logged in successfully.
588 1351
589If the callback returns something, it is sent back as if reply was being 1352If the callback returns something, it is sent back as if reply was being
590called. 1353called.
591 1354
1355=item cf::register_exticmd $name => \&callback($ns,$packet);
1356
1357Register a callback for execution when the client sends an (asynchronous)
1358exticmd packet. Exti commands are processed by the server as soon as they
1359are received, i.e. out of order w.r.t. other commands. The first argument
1360is a client socket. Exti commands can be received anytime, even before
1361log-in.
1362
1363If the callback returns something, it is sent back as if reply was being
1364called.
1365
592=cut 1366=cut
593 1367
594sub register_extcmd { 1368sub register_extcmd {
595 my ($name, $cb) = @_; 1369 my ($name, $cb) = @_;
596 1370
597 my $caller = caller;
598 #warn "registering extcmd '$name' to '$caller'";
599
600 $EXTCMD{$name} = [$cb, $caller]; 1371 $EXTCMD{$name} = $cb;
601} 1372}
1373
1374sub register_exticmd {
1375 my ($name, $cb) = @_;
1376
1377 $EXTICMD{$name} = $cb;
1378}
1379
1380use File::Glob ();
602 1381
603cf::player->attach ( 1382cf::player->attach (
604 on_command => sub { 1383 on_unknown_command => sub {
605 my ($pl, $name, $params) = @_; 1384 my ($pl, $name, $params) = @_;
606 1385
607 my $cb = $COMMAND{$name} 1386 my $cb = $COMMAND{$name}
608 or return; 1387 or return;
609 1388
… …
614 cf::override; 1393 cf::override;
615 }, 1394 },
616 on_extcmd => sub { 1395 on_extcmd => sub {
617 my ($pl, $buf) = @_; 1396 my ($pl, $buf) = @_;
618 1397
619 my $msg = eval { from_json $buf }; 1398 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
620 1399
621 if (ref $msg) { 1400 if (ref $msg) {
1401 my ($type, $reply, @payload) =
1402 "ARRAY" eq ref $msg
1403 ? @$msg
1404 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1405
1406 my @reply;
1407
622 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1408 if (my $cb = $EXTCMD{$type}) {
623 if (my %reply = $cb->[0]->($pl, $msg)) { 1409 @reply = $cb->($pl, @payload);
624 $pl->ext_reply ($msg->{msgid}, %reply);
625 }
626 } 1410 }
1411
1412 $pl->ext_reply ($reply, @reply)
1413 if $reply;
1414
627 } else { 1415 } else {
628 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1416 error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
629 } 1417 }
630 1418
631 cf::override; 1419 cf::override;
632 }, 1420 },
633); 1421);
634 1422
635sub register { 1423# "readahead" all extensions
636 my ($base, $pkg) = @_;
637
638 #TODO
639}
640
641sub load_extension { 1424sub cache_extensions {
642 my ($path) = @_; 1425 my $grp = IO::AIO::aio_group;
643 1426
644 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1427 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
645 my $base = $1; 1428 for (grep /\.ext$/, @{$_[0]}) {
646 my $pkg = $1; 1429 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 } 1430 }
694 } 1431 };
695 1432
696 # remove extcmds 1433 $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} 1434}
710 1435
711sub load_extensions { 1436sub load_extensions {
1437 info "loading extensions...";
1438
1439 cf::sync_job {
1440 my %todo;
1441
712 for my $ext (<$LIBDIR/*.ext>) { 1442 for my $path (<$LIBDIR/*.ext>) {
713 next unless -r $ext; 1443 next unless -r $path;
714 eval { 1444
715 load_extension $ext; 1445 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1446 my $base = $1;
1447 my $pkg = $1;
1448 $pkg =~ s/[^[:word:]]/_/g;
1449 $pkg = "ext::$pkg";
1450
1451 open my $fh, "<:utf8", $path
1452 or die "$path: $!";
1453
1454 my $source = do { local $/; <$fh> };
1455
1456 my %ext = (
1457 path => $path,
1458 base => $base,
1459 pkg => $pkg,
1460 );
1461
1462 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1463 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1464
1465 $ext{source} =
1466 "package $pkg; use common::sense;\n"
1467 . "#line 1 \"$path\"\n{\n"
1468 . $source
1469 . "\n};\n1";
1470
1471 $todo{$base} = \%ext;
1472 }
1473
1474 my $pass = 0;
1475 my %done;
1476 while (%todo) {
1477 my $progress;
1478
1479 ++$pass;
1480
1481 ext:
1482 while (my ($k, $v) = each %todo) {
1483 for (split /,\s*/, $v->{meta}{depends}) {
1484 next ext
1485 unless exists $done{$_};
1486 }
1487
1488 trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1489
1490 my $active = eval $v->{source};
1491
1492 if (length $@) {
1493 error "$v->{path}: $@\n";
1494
1495 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1496 if exists $v->{meta}{mandatory};
1497
1498 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1499 delete $todo{$k};
1500 } else {
1501 $done{$k} = delete $todo{$k};
1502 push @EXTS, $v->{pkg};
1503 $progress = 1;
1504
1505 info "$v->{base}: extension inactive.\n"
1506 unless $active;
1507 }
716 1 1508 }
717 } or warn "$ext not loaded: $@"; 1509
1510 unless ($progress) {
1511 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1512
1513 while (my ($k, $v) = each %todo) {
1514 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1515 if exists $v->{meta}{mandatory};
1516 }
1517 }
1518 }
718 } 1519 };
719} 1520}
720 1521
721############################################################################# 1522#############################################################################
722# load/save/clean perl data associated with a map
723 1523
724*cf::mapsupport::on_clean = sub { 1524=back
1525
1526=head2 CORE EXTENSIONS
1527
1528Functions and methods that extend core deliantra objects.
1529
1530=cut
1531
1532package cf::player;
1533
1534use Coro::AIO;
1535
1536=head3 cf::player
1537
1538=over 4
1539
1540=item cf::player::num_playing
1541
1542Returns the official number of playing players, as per the Crossfire metaserver rules.
1543
1544=cut
1545
1546sub num_playing {
1547 scalar grep
1548 $_->ob->map
1549 && !$_->hidden
1550 && !$_->ob->flag (cf::FLAG_WIZ),
1551 cf::player::list
1552}
1553
1554=item cf::player::find $login
1555
1556Returns the given player object, loading it if necessary (might block).
1557
1558=cut
1559
1560sub playerdir($) {
1561 "$PLAYERDIR/"
1562 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1563}
1564
1565sub path($) {
1566 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1567
1568 (playerdir $login) . "/playerdata"
1569}
1570
1571sub find_active($) {
1572 $cf::PLAYER{$_[0]}
1573 and $cf::PLAYER{$_[0]}->active
1574 and $cf::PLAYER{$_[0]}
1575}
1576
1577sub exists($) {
725 my ($map) = @_; 1578 my ($login) = @_;
726 1579
727 my $path = $map->tmpname; 1580 $cf::PLAYER{$login}
728 defined $path or return; 1581 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 ($_->inv), @_
740} 1582}
741 1583
742# TODO: compatibility cruft, remove when no longer needed 1584sub find($) {
1585 return $cf::PLAYER{$_[0]} || do {
1586 my $login = $_[0];
1587
1588 my $guard = cf::lock_acquire "user_find:$login";
1589
1590 $cf::PLAYER{$_[0]} || do {
1591 # rename old playerfiles to new ones
1592 #TODO: remove when no longer required
1593 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1594 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1595 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1596 aio_unlink +(playerdir $login) . "/$login.pl";
1597
1598 my $f = new_from_file cf::object::thawer path $login
1599 or return;
1600
1601 my $pl = cf::player::load_pl $f
1602 or return;
1603
1604 local $cf::PLAYER_LOADING{$login} = $pl;
1605 $f->resolve_delayed_derefs;
1606 $cf::PLAYER{$login} = $pl
1607 }
1608 }
1609}
1610
743cf::player->attach ( 1611cf::player->attach (
744 on_load => sub { 1612 on_load => sub {
745 my ($pl, $path) = @_; 1613 my ($pl, $path) = @_;
746 1614
747 for my $o (all_objects $pl->ob) { 1615 # restore slots saved in save, below
748 if (my $value = $o->get_ob_key_value ("_perl_data")) { 1616 my $slots = delete $pl->{_slots};
749 $o->set_ob_key_value ("_perl_data");
750 1617
751 %$o = %{ Storable::thaw pack "H*", $value }; 1618 $pl->ob->current_weapon ($slots->[0]);
752 } 1619 $pl->combat_ob ($slots->[1]);
753 } 1620 $pl->ranged_ob ($slots->[2]);
754 }, 1621 },
755); 1622);
756 1623
757############################################################################# 1624sub save($) {
1625 my ($pl) = @_;
758 1626
759=head2 CORE EXTENSIONS 1627 return if $pl->{deny_save};
760 1628
761Functions and methods that extend core crossfire objects. 1629 my $path = path $pl;
1630 my $guard = cf::lock_acquire "user_save:$path";
1631
1632 return if $pl->{deny_save};
1633
1634 aio_mkdir playerdir $pl, 0770;
1635 $pl->{last_save} = $cf::RUNTIME;
1636
1637 cf::get_slot 0.01;
1638
1639 # save slots, to be restored later
1640 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1641
1642 $pl->save_pl ($path);
1643 cf::cede_to_tick;
1644}
1645
1646sub new($) {
1647 my ($login) = @_;
1648
1649 my $self = create;
1650
1651 $self->ob->name ($login);
1652 $self->{deny_save} = 1;
1653
1654 $cf::PLAYER{$login} = $self;
1655
1656 $self
1657}
1658
1659=item $player->send_msg ($channel, $msg, $color, [extra...])
1660
1661=cut
1662
1663sub send_msg {
1664 my $ns = shift->ns
1665 or return;
1666 $ns->send_msg (@_);
1667}
1668
1669=item $pl->quit_character
1670
1671Nukes the player without looking back. If logged in, the connection will
1672be destroyed. May block for a long time.
1673
1674=cut
1675
1676sub quit_character {
1677 my ($pl) = @_;
1678
1679 my $name = $pl->ob->name;
1680
1681 $pl->{deny_save} = 1;
1682 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1683
1684 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1685 $pl->deactivate;
1686
1687 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1688 $pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
1689 ext::highscore::check ($pl->ob);
1690
1691 $pl->ns->destroy if $pl->ns;
1692
1693 my $path = playerdir $pl;
1694 my $temp = "$path~$cf::RUNTIME~deleting~";
1695 aio_rename $path, $temp;
1696 delete $cf::PLAYER{$pl->ob->name};
1697 $pl->destroy;
1698
1699 my $prefix = qr<^~\Q$name\E/>;
1700
1701 # nuke player maps
1702 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1703
1704 IO::AIO::aio_rmtree $temp;
1705}
1706
1707=item $pl->kick
1708
1709Kicks a player out of the game. This destroys the connection.
1710
1711=cut
1712
1713sub kick {
1714 my ($pl, $kicker) = @_;
1715
1716 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1717 $pl->killer ("kicked");
1718 $pl->ns->destroy;
1719}
1720
1721=item cf::player::list_logins
1722
1723Returns am arrayref of all valid playernames in the system, can take a
1724while and may block, so not sync_job-capable, ever.
1725
1726=cut
1727
1728sub list_logins {
1729 my $dirs = aio_readdir $PLAYERDIR
1730 or return [];
1731
1732 my @logins;
1733
1734 for my $login (@$dirs) {
1735 my $path = path $login;
1736
1737 # a .pst is a dead give-away for a valid player
1738 # if no pst file found, open and chekc for blocked users
1739 if (aio_stat "$path.pst") {
1740 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1741 aio_read $fh, 0, 512, my $buf, 0 or next;
1742 $buf !~ /^password -------------$/m or next; # official not-valid tag
1743 }
1744
1745 utf8::decode $login;
1746 push @logins, $login;
1747 }
1748
1749 \@logins
1750}
1751
1752=item $player->maps
1753
1754=item cf::player::maps $login
1755
1756Returns an arrayref of map paths that are private for this
1757player. May block.
1758
1759=cut
1760
1761sub maps($) {
1762 my ($pl) = @_;
1763
1764 $pl = ref $pl ? $pl->ob->name : $pl;
1765
1766 my $files = aio_readdir playerdir $pl
1767 or return;
1768
1769 my @paths;
1770
1771 for (@$files) {
1772 utf8::decode $_;
1773 next if /\.(?:pl|pst)$/;
1774 next unless /^$PATH_SEP/o;
1775
1776 push @paths, cf::map::normalise "~$pl/$_";
1777 }
1778
1779 \@paths
1780}
1781
1782=item $protocol_xml = $player->expand_cfpod ($cfpod)
1783
1784Expand deliantra pod fragments into protocol xml.
1785
1786=item $player->ext_reply ($msgid, @msg)
1787
1788Sends an ext reply to the player.
1789
1790=cut
1791
1792sub ext_reply($$@) {
1793 my ($self, $id, @msg) = @_;
1794
1795 $self->ns->ext_reply ($id, @msg)
1796}
1797
1798=item $player->ext_msg ($type, @msg)
1799
1800Sends an ext event to the client.
1801
1802=cut
1803
1804sub ext_msg($$@) {
1805 my ($self, $type, @msg) = @_;
1806
1807 $self->ns->ext_msg ($type, @msg);
1808}
1809
1810=head3 cf::region
762 1811
763=over 4 1812=over 4
764 1813
765=item cf::player::exists $login
766
767Returns true when the given account exists.
768
769=cut 1814=cut
770 1815
771sub cf::player::exists($) { 1816package cf::region;
772 cf::player::find $_[0] 1817
773 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1818=item cf::region::find_by_path $path
1819
1820Tries to decuce the likely region for a map knowing only its path.
1821
1822=cut
1823
1824sub find_by_path($) {
1825 my ($path) = @_;
1826
1827 $path =~ s/^~[^\/]*//; # skip ~login
1828
1829 my ($match, $specificity);
1830
1831 for my $region (list) {
1832 if ($region->{match} && $path =~ $region->{match}) {
1833 ($match, $specificity) = ($region, $region->specificity)
1834 if $region->specificity > $specificity;
1835 }
1836 }
1837
1838 $match
774} 1839}
1840
1841=back
1842
1843=head3 cf::map
1844
1845=over 4
1846
1847=cut
1848
1849package cf::map;
1850
1851use Fcntl;
1852use Coro::AIO;
1853
1854use overload
1855 '""' => \&as_string,
1856 fallback => 1;
1857
1858our $MAX_RESET = 3600;
1859our $DEFAULT_RESET = 3000;
1860
1861sub generate_random_map {
1862 my ($self, $rmp) = @_;
1863
1864 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1865
1866 # mit "rum" bekleckern, nicht
1867 $self->_create_random_map (
1868 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1869 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1870 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1871 $rmp->{exit_on_final_map},
1872 $rmp->{xsize}, $rmp->{ysize},
1873 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1874 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1875 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1876 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1877 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1878 (cf::region::find $rmp->{region}), $rmp->{custom}
1879 )
1880}
1881
1882=item cf::map->register ($regex, $prio)
1883
1884Register a handler for the map path matching the given regex at the
1885givne priority (higher is better, built-in handlers have priority 0, the
1886default).
1887
1888=cut
1889
1890sub register {
1891 my (undef, $regex, $prio) = @_;
1892 my $pkg = caller;
1893
1894 push @{"$pkg\::ISA"}, __PACKAGE__;
1895
1896 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1897}
1898
1899# also paths starting with '/'
1900$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1901
1902sub thawer_merge {
1903 my ($self, $merge) = @_;
1904
1905 # we have to keep some variables in memory intact
1906 local $self->{path};
1907 local $self->{load_path};
1908
1909 $self->SUPER::thawer_merge ($merge);
1910}
1911
1912sub normalise {
1913 my ($path, $base) = @_;
1914
1915 $path = "$path"; # make sure it's a string
1916
1917 $path =~ s/\.map$//;
1918
1919 # map plan:
1920 #
1921 # /! non-realised random map exit (special hack!)
1922 # {... are special paths that are not being touched
1923 # ?xxx/... are special absolute paths
1924 # ?random/... random maps
1925 # /... normal maps
1926 # ~user/... per-player map of a specific user
1927
1928 $path =~ s/$PATH_SEP/\//go;
1929
1930 # treat it as relative path if it starts with
1931 # something that looks reasonable
1932 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1933 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1934
1935 $base =~ s{[^/]+/?$}{};
1936 $path = "$base/$path";
1937 }
1938
1939 for ($path) {
1940 redo if s{/\.?/}{/};
1941 redo if s{/[^/]+/\.\./}{/};
1942 }
1943
1944 $path
1945}
1946
1947sub new_from_path {
1948 my (undef, $path, $base) = @_;
1949
1950 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1951
1952 $path = normalise $path, $base;
1953
1954 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1955 if ($path =~ $EXT_MAP{$pkg}[1]) {
1956 my $self = bless cf::map::new, $pkg;
1957 $self->{path} = $path; $self->path ($path);
1958 $self->init; # pass $1 etc.
1959 return $self;
1960 }
1961 }
1962
1963 Carp::cluck "unable to resolve path '$path' (base '$base')";
1964 ()
1965}
1966
1967sub init {
1968 my ($self) = @_;
1969
1970 $self
1971}
1972
1973sub as_string {
1974 my ($self) = @_;
1975
1976 "$self->{path}"
1977}
1978
1979# the displayed name, this is a one way mapping
1980sub visible_name {
1981 &as_string
1982}
1983
1984# the original (read-only) location
1985sub load_path {
1986 my ($self) = @_;
1987
1988 "$MAPDIR/$self->{path}.map"
1989}
1990
1991# the temporary/swap location
1992sub save_path {
1993 my ($self) = @_;
1994
1995 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1996 "$TMPDIR/$path.map"
1997}
1998
1999# the unique path, undef == no special unique path
2000sub uniq_path {
2001 my ($self) = @_;
2002
2003 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
2004 "$UNIQUEDIR/$path"
2005}
2006
2007sub decay_objects {
2008 my ($self) = @_;
2009
2010 return if $self->{deny_reset};
2011
2012 $self->do_decay_objects;
2013}
2014
2015sub unlink_save {
2016 my ($self) = @_;
2017
2018 utf8::encode (my $save = $self->save_path);
2019 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
2020 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
2021}
2022
2023sub load_header_from($) {
2024 my ($self, $path) = @_;
2025
2026 utf8::encode $path;
2027 my $f = new_from_file cf::object::thawer $path
2028 or return;
2029
2030 $self->_load_header ($f)
2031 or return;
2032
2033 local $MAP_LOADING{$self->{path}} = $self;
2034 $f->resolve_delayed_derefs;
2035
2036 $self->{load_path} = $path;
2037
2038 1
2039}
2040
2041sub load_header_orig {
2042 my ($self) = @_;
2043
2044 $self->load_header_from ($self->load_path)
2045}
2046
2047sub load_header_temp {
2048 my ($self) = @_;
2049
2050 $self->load_header_from ($self->save_path)
2051}
2052
2053sub prepare_temp {
2054 my ($self) = @_;
2055
2056 $self->last_access ((delete $self->{last_access})
2057 || $cf::RUNTIME); #d#
2058 # safety
2059 $self->{instantiate_time} = $cf::RUNTIME
2060 if $self->{instantiate_time} > $cf::RUNTIME;
2061}
2062
2063sub prepare_orig {
2064 my ($self) = @_;
2065
2066 $self->{load_original} = 1;
2067 $self->{instantiate_time} = $cf::RUNTIME;
2068 $self->last_access ($cf::RUNTIME);
2069 $self->instantiate;
2070}
2071
2072sub load_header {
2073 my ($self) = @_;
2074
2075 if ($self->load_header_temp) {
2076 $self->prepare_temp;
2077 } else {
2078 $self->load_header_orig
2079 or return;
2080 $self->prepare_orig;
2081 }
2082
2083 $self->{deny_reset} = 1
2084 if $self->no_reset;
2085
2086 $self->default_region (cf::region::find_by_path $self->{path})
2087 unless $self->default_region;
2088
2089 1
2090}
2091
2092sub find;
2093sub find {
2094 my ($path, $origin) = @_;
2095
2096 cf::cede_to_tick;
2097
2098 $path = normalise $path, $origin && $origin->path;
2099
2100 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2101 my $guard2 = cf::lock_acquire "map_find:$path";
2102
2103 $cf::MAP{$path} || do {
2104 my $map = new_from_path cf::map $path
2105 or return;
2106
2107 $map->{last_save} = $cf::RUNTIME;
2108
2109 $map->load_header
2110 or return;
2111
2112 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2113 # doing this can freeze the server in a sync job, obviously
2114 #$cf::WAIT_FOR_TICK->wait;
2115 undef $guard2;
2116 undef $guard1;
2117 $map->reset;
2118 return find $path;
2119 }
2120
2121 $cf::MAP{$path} = $map
2122 }
2123}
2124
2125sub pre_load { }
2126#sub post_load { } # XS
2127
2128sub load {
2129 my ($self) = @_;
2130
2131 local $self->{deny_reset} = 1; # loading can take a long time
2132
2133 my $path = $self->{path};
2134
2135 {
2136 my $guard = cf::lock_acquire "map_data:$path";
2137
2138 return unless $self->valid;
2139 return unless $self->in_memory == cf::MAP_SWAPPED;
2140
2141 $self->in_memory (cf::MAP_LOADING);
2142
2143 $self->alloc;
2144
2145 $self->pre_load;
2146 cf::cede_to_tick;
2147
2148 my $f = new_from_file cf::object::thawer $self->{load_path};
2149 $f->skip_block;
2150 $self->_load_objects ($f)
2151 or return;
2152
2153 $self->post_load_original
2154 if delete $self->{load_original};
2155
2156 if (my $uniq = $self->uniq_path) {
2157 utf8::encode $uniq;
2158 unless (aio_stat $uniq) {
2159 if (my $f = new_from_file cf::object::thawer $uniq) {
2160 $self->clear_unique_items;
2161 $self->_load_objects ($f);
2162 $f->resolve_delayed_derefs;
2163 }
2164 }
2165 }
2166
2167 $f->resolve_delayed_derefs;
2168
2169 cf::cede_to_tick;
2170 # now do the right thing for maps
2171 $self->link_multipart_objects;
2172 $self->difficulty ($self->estimate_difficulty)
2173 unless $self->difficulty;
2174 cf::cede_to_tick;
2175
2176 unless ($self->{deny_activate}) {
2177 $self->decay_objects;
2178 $self->fix_auto_apply;
2179 $self->update_buttons;
2180 cf::cede_to_tick;
2181 $self->activate;
2182 }
2183
2184 $self->{last_save} = $cf::RUNTIME;
2185 $self->last_access ($cf::RUNTIME);
2186
2187 $self->in_memory (cf::MAP_ACTIVE);
2188 }
2189
2190 $self->post_load;
2191}
2192
2193# customize the map for a given player, i.e.
2194# return the _real_ map. used by e.g. per-player
2195# maps to change the path to ~playername/mappath
2196sub customise_for {
2197 my ($self, $ob) = @_;
2198
2199 return find "~" . $ob->name . "/" . $self->{path}
2200 if $self->per_player;
2201
2202# return find "?party/" . $ob->name . "/" . $self->{path}
2203# if $self->per_party;
2204
2205 $self
2206}
2207
2208# find and load all maps in the 3x3 area around a map
2209sub load_neighbours {
2210 my ($map) = @_;
2211
2212 my @neigh; # diagonal neighbours
2213
2214 for (0 .. 3) {
2215 my $neigh = $map->tile_path ($_)
2216 or next;
2217 $neigh = find $neigh, $map
2218 or next;
2219 $neigh->load;
2220
2221 # now find the diagonal neighbours
2222 push @neigh,
2223 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2224 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2225 }
2226
2227 for (grep defined $_->[0], @neigh) {
2228 my ($path, $origin) = @$_;
2229 my $neigh = find $path, $origin
2230 or next;
2231 $neigh->load;
2232 }
2233}
2234
2235sub find_sync {
2236 my ($path, $origin) = @_;
2237
2238 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2239 if $Coro::current == $Coro::main;
2240
2241 find $path, $origin
2242}
2243
2244sub do_load_sync {
2245 my ($map) = @_;
2246
2247 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2248 if $Coro::current == $Coro::main;
2249
2250 $map->load;
2251}
2252
2253our %MAP_PREFETCH;
2254our $MAP_PREFETCHER = undef;
2255
2256sub find_async {
2257 my ($path, $origin, $load) = @_;
2258
2259 $path = normalise $path, $origin && $origin->{path};
2260
2261 if (my $map = $cf::MAP{$path}) {
2262 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2263 }
2264
2265 $MAP_PREFETCH{$path} |= $load;
2266
2267 $MAP_PREFETCHER ||= cf::async {
2268 $Coro::current->{desc} = "map prefetcher";
2269
2270 while (%MAP_PREFETCH) {
2271 while (my ($k, $v) = each %MAP_PREFETCH) {
2272 if (my $map = find $k) {
2273 $map->load if $v;
2274 }
2275
2276 delete $MAP_PREFETCH{$k};
2277 }
2278 }
2279 undef $MAP_PREFETCHER;
2280 };
2281 $MAP_PREFETCHER->prio (6);
2282
2283 ()
2284}
2285
2286# common code, used by both ->save and ->swapout
2287sub _save {
2288 my ($self) = @_;
2289
2290 $self->{last_save} = $cf::RUNTIME;
2291
2292 return unless $self->dirty;
2293
2294 my $save = $self->save_path; utf8::encode $save;
2295 my $uniq = $self->uniq_path; utf8::encode $uniq;
2296
2297 $self->{load_path} = $save;
2298
2299 return if $self->{deny_save};
2300
2301 local $self->{last_access} = $self->last_access;#d#
2302
2303 cf::async {
2304 $Coro::current->{desc} = "map player save";
2305 $_->contr->save for $self->players;
2306 };
2307
2308 cf::get_slot 0.02;
2309
2310 if ($uniq) {
2311 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2312 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2313 } else {
2314 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2315 }
2316}
2317
2318sub save {
2319 my ($self) = @_;
2320
2321 my $lock = cf::lock_acquire "map_data:$self->{path}";
2322
2323 $self->_save;
2324}
2325
2326sub swap_out {
2327 my ($self) = @_;
2328
2329 my $lock = cf::lock_acquire "map_data:$self->{path}";
2330
2331 return if $self->in_memory != cf::MAP_ACTIVE;
2332 return if $self->{deny_save};
2333 return if $self->players;
2334
2335 # first deactivate the map and "unlink" it from the core
2336 $self->deactivate;
2337 $_->clear_links_to ($self) for values %cf::MAP;
2338 $self->in_memory (cf::MAP_SWAPPED);
2339
2340 # then atomically save
2341 $self->_save;
2342
2343 # then free the map
2344 $self->clear;
2345}
2346
2347sub reset_at {
2348 my ($self) = @_;
2349
2350 # TODO: safety, remove and allow resettable per-player maps
2351 return 1e99 if $self->{deny_reset};
2352
2353 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2354 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2355
2356 $time + $to
2357}
2358
2359sub should_reset {
2360 my ($self) = @_;
2361
2362 $self->reset_at <= $cf::RUNTIME
2363}
2364
2365sub reset {
2366 my ($self) = @_;
2367
2368 my $lock = cf::lock_acquire "map_data:$self->{path}";
2369
2370 return if $self->players;
2371
2372 cf::trace "resetting map ", $self->path, "\n";
2373
2374 $self->in_memory (cf::MAP_SWAPPED);
2375
2376 # need to save uniques path
2377 unless ($self->{deny_save}) {
2378 my $uniq = $self->uniq_path; utf8::encode $uniq;
2379
2380 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2381 if $uniq;
2382 }
2383
2384 delete $cf::MAP{$self->path};
2385
2386 $self->deactivate;
2387 $_->clear_links_to ($self) for values %cf::MAP;
2388 $self->clear;
2389
2390 $self->unlink_save;
2391 $self->destroy;
2392}
2393
2394my $nuke_counter = "aaaa";
2395
2396sub nuke {
2397 my ($self) = @_;
2398
2399 {
2400 my $lock = cf::lock_acquire "map_data:$self->{path}";
2401
2402 delete $cf::MAP{$self->path};
2403
2404 $self->unlink_save;
2405
2406 bless $self, "cf::map::wrap";
2407 delete $self->{deny_reset};
2408 $self->{deny_save} = 1;
2409 $self->reset_timeout (1);
2410 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2411
2412 $cf::MAP{$self->path} = $self;
2413 }
2414
2415 $self->reset; # polite request, might not happen
2416}
2417
2418=item $maps = cf::map::tmp_maps
2419
2420Returns an arrayref with all map paths of currently instantiated and saved
2421maps. May block.
2422
2423=cut
2424
2425sub tmp_maps() {
2426 [
2427 map {
2428 utf8::decode $_;
2429 /\.map$/
2430 ? normalise $_
2431 : ()
2432 } @{ aio_readdir $TMPDIR or [] }
2433 ]
2434}
2435
2436=item $maps = cf::map::random_maps
2437
2438Returns an arrayref with all map paths of currently instantiated and saved
2439random maps. May block.
2440
2441=cut
2442
2443sub random_maps() {
2444 [
2445 map {
2446 utf8::decode $_;
2447 /\.map$/
2448 ? normalise "?random/$_"
2449 : ()
2450 } @{ aio_readdir $RANDOMDIR or [] }
2451 ]
2452}
2453
2454=item cf::map::unique_maps
2455
2456Returns an arrayref of paths of all shared maps that have
2457instantiated unique items. May block.
2458
2459=cut
2460
2461sub unique_maps() {
2462 [
2463 map {
2464 utf8::decode $_;
2465 s/\.map$//; # TODO future compatibility hack
2466 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2467 ? ()
2468 : normalise $_
2469 } @{ aio_readdir $UNIQUEDIR or [] }
2470 ]
2471}
2472
2473=item cf::map::static_maps
2474
2475Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2476file in the shared directory excluding F</styles> and F</editor>). May
2477block.
2478
2479=cut
2480
2481sub static_maps() {
2482 my @dirs = "";
2483 my @maps;
2484
2485 while (@dirs) {
2486 my $dir = shift @dirs;
2487
2488 next if $dir eq "/styles" || $dir eq "/editor";
2489
2490 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2491 or return;
2492
2493 for (@$files) {
2494 s/\.map$// or next;
2495 utf8::decode $_;
2496 push @maps, "$dir/$_";
2497 }
2498
2499 push @dirs, map "$dir/$_", @$dirs;
2500 }
2501
2502 \@maps
2503}
2504
2505=back
2506
2507=head3 cf::object
2508
2509=cut
2510
2511package cf::object;
2512
2513=over 4
2514
2515=item $ob->inv_recursive
2516
2517Returns the inventory of the object I<and> their inventories, recursively,
2518but I<not> the object itself.
2519
2520=cut
2521
2522sub inv_recursive_;
2523sub inv_recursive_ {
2524 map { $_, inv_recursive_ $_->inv } @_
2525}
2526
2527sub inv_recursive {
2528 inv_recursive_ inv $_[0]
2529}
2530
2531=item $ref = $ob->ref
2532
2533Creates and returns a persistent reference to an object that can be stored as a string.
2534
2535=item $ob = cf::object::deref ($refstring)
2536
2537returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2538even if the object actually exists. May block.
2539
2540=cut
2541
2542sub deref {
2543 my ($ref) = @_;
2544
2545 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2546 my ($uuid, $name) = ($1, $2);
2547 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2548 or return;
2549 $pl->ob->uuid eq $uuid
2550 or return;
2551
2552 $pl->ob
2553 } else {
2554 warn "$ref: cannot resolve object reference\n";
2555 undef
2556 }
2557}
2558
2559package cf;
2560
2561=back
2562
2563=head3 cf::object::player
2564
2565=over 4
775 2566
776=item $player_object->reply ($npc, $msg[, $flags]) 2567=item $player_object->reply ($npc, $msg[, $flags])
777 2568
778Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2569Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
779can be C<undef>. Does the right thing when the player is currently in a 2570can be C<undef>. Does the right thing when the player is currently in a
780dialogue with the given NPC character. 2571dialogue with the given NPC character.
781 2572
782=cut 2573=cut
783 2574
2575our $SAY_CHANNEL = {
2576 id => "say",
2577 title => "Map",
2578 reply => "say ",
2579 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2580};
2581
2582our $CHAT_CHANNEL = {
2583 id => "chat",
2584 title => "Chat",
2585 reply => "chat ",
2586 tooltip => "Player chat and shouts, global to the server.",
2587};
2588
784# rough implementation of a future "reply" method that works 2589# rough implementation of a future "reply" method that works
785# with dialog boxes. 2590# with dialog boxes.
2591#TODO: the first argument must go, split into a $npc->reply_to ( method
786sub cf::object::player::reply($$$;$) { 2592sub cf::object::player::reply($$$;$) {
787 my ($self, $npc, $msg, $flags) = @_; 2593 my ($self, $npc, $msg, $flags) = @_;
788 2594
789 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2595 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790 2596
791 if ($self->{record_replies}) { 2597 if ($self->{record_replies}) {
792 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2598 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2599
793 } else { 2600 } else {
2601 my $pl = $self->contr;
2602
2603 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2604 my $dialog = $pl->{npc_dialog};
2605 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2606
2607 } else {
794 $msg = $npc->name . " says: $msg" if $npc; 2608 $msg = $npc->name . " says: $msg" if $npc;
795 $self->message ($msg, $flags); 2609 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2610 }
796 } 2611 }
797} 2612}
798 2613
799=item $player->ext_reply ($msgid, $msgtype, %msg) 2614=item $object->send_msg ($channel, $msg, $color, [extra...])
800 2615
801Sends an ext reply to the player.
802
803=cut 2616=cut
804 2617
805sub cf::player::ext_reply($$$%) { 2618sub cf::object::send_msg {
806 my ($self, $id, %msg) = @_; 2619 my $pl = shift->contr
807 2620 or return;
808 $msg{msgid} = $id; 2621 $pl->send_msg (@_);
809
810 $self->send ("ext " . to_json \%msg);
811} 2622}
812 2623
813=item $player_object->may ("access") 2624=item $player_object->may ("access")
814 2625
815Returns wether the given player is authorized to access resource "access" 2626Returns wether the given player is authorized to access resource "access"
… …
824 (ref $cf::CFG{"may_$access"} 2635 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 2636 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 2637 : $cf::CFG{"may_$access"})
827} 2638}
828 2639
829=cut 2640=item $player_object->enter_link
830 2641
831############################################################################# 2642Freezes the player and moves him/her to a special map (C<{link}>).
2643
2644The player should be reasonably safe there for short amounts of time (e.g.
2645for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2646though, as the player cannot control the character while it is on the link
2647map.
2648
2649Will never block.
2650
2651=item $player_object->leave_link ($map, $x, $y)
2652
2653Moves the player out of the special C<{link}> map onto the specified
2654map. If the map is not valid (or omitted), the player will be moved back
2655to the location he/she was before the call to C<enter_link>, or, if that
2656fails, to the emergency map position.
2657
2658Might block.
2659
2660=cut
2661
2662sub link_map {
2663 unless ($LINK_MAP) {
2664 $LINK_MAP = cf::map::find "{link}"
2665 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2666 $LINK_MAP->load;
2667 }
2668
2669 $LINK_MAP
2670}
2671
2672sub cf::object::player::enter_link {
2673 my ($self) = @_;
2674
2675 $self->deactivate_recursive;
2676
2677 ++$self->{_link_recursion};
2678
2679 return if UNIVERSAL::isa $self->map, "ext::map_link";
2680
2681 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2682 if $self->map && $self->map->{path} ne "{link}";
2683
2684 $self->enter_map ($LINK_MAP || link_map, 3, 3);
2685}
2686
2687sub cf::object::player::leave_link {
2688 my ($self, $map, $x, $y) = @_;
2689
2690 return unless $self->contr->active;
2691
2692 my $link_pos = delete $self->{_link_pos};
2693
2694 unless ($map) {
2695 # restore original map position
2696 ($map, $x, $y) = @{ $link_pos || [] };
2697 $map = cf::map::find $map;
2698
2699 unless ($map) {
2700 ($map, $x, $y) = @$EMERGENCY_POSITION;
2701 $map = cf::map::find $map
2702 or die "FATAL: cannot load emergency map\n";
2703 }
2704 }
2705
2706 ($x, $y) = (-1, -1)
2707 unless (defined $x) && (defined $y);
2708
2709 # use -1 or undef as default coordinates, not 0, 0
2710 ($x, $y) = ($map->enter_x, $map->enter_y)
2711 if $x <= 0 && $y <= 0;
2712
2713 $map->load;
2714 $map->load_neighbours;
2715
2716 return unless $self->contr->active;
2717
2718 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2719 if ($self->enter_map ($map, $x, $y)) {
2720 # entering was successful
2721 delete $self->{_link_recursion};
2722 # only activate afterwards, to support waiting in hooks
2723 $self->activate_recursive;
2724 }
2725
2726}
2727
2728=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2729
2730Moves the player to the given map-path and coordinates by first freezing
2731her, loading and preparing them map, calling the provided $check callback
2732that has to return the map if sucecssful, and then unfreezes the player on
2733the new (success) or old (failed) map position. In either case, $done will
2734be called at the end of this process.
2735
2736Note that $check will be called with a potentially non-loaded map, so if
2737it needs a loaded map it has to call C<< ->load >>.
2738
2739=cut
2740
2741our $GOTOGEN;
2742
2743sub cf::object::player::goto {
2744 my ($self, $path, $x, $y, $check, $done) = @_;
2745
2746 if ($self->{_link_recursion} >= $MAX_LINKS) {
2747 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2748 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2749 ($path, $x, $y) = @$EMERGENCY_POSITION;
2750 }
2751
2752 # do generation counting so two concurrent goto's will be executed in-order
2753 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2754
2755 $self->enter_link;
2756
2757 (async {
2758 $Coro::current->{desc} = "player::goto $path $x $y";
2759
2760 # *tag paths override both path and x|y
2761 if ($path =~ /^\*(.*)$/) {
2762 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2763 my $ob = $obs[rand @obs];
2764
2765 # see if we actually can go there
2766 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2767 $ob = $obs[rand @obs];
2768 } else {
2769 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2770 }
2771 # else put us there anyways for now #d#
2772
2773 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2774 } else {
2775 ($path, $x, $y) = (undef, undef, undef);
2776 }
2777 }
2778
2779 my $map = eval {
2780 my $map = defined $path ? cf::map::find $path : undef;
2781
2782 if ($map) {
2783 $map = $map->customise_for ($self);
2784 $map = $check->($map, $x, $y, $self) if $check && $map;
2785 } else {
2786 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2787 }
2788
2789 $map
2790 };
2791
2792 if ($@) {
2793 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2794 LOG llevError | logBacktrace, Carp::longmess $@;
2795 }
2796
2797 if ($gen == $self->{_goto_generation}) {
2798 delete $self->{_goto_generation};
2799 $self->leave_link ($map, $x, $y);
2800 }
2801
2802 $done->($self) if $done;
2803 })->prio (1);
2804}
2805
2806=item $player_object->enter_exit ($exit_object)
2807
2808=cut
2809
2810sub parse_random_map_params {
2811 my ($spec) = @_;
2812
2813 my $rmp = { # defaults
2814 xsize => (cf::rndm 15, 40),
2815 ysize => (cf::rndm 15, 40),
2816 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2817 #layout => string,
2818 };
2819
2820 for (split /\n/, $spec) {
2821 my ($k, $v) = split /\s+/, $_, 2;
2822
2823 $rmp->{lc $k} = $v if (length $k) && (length $v);
2824 }
2825
2826 $rmp
2827}
2828
2829sub prepare_random_map {
2830 my ($exit) = @_;
2831
2832 # all this does is basically replace the /! path by
2833 # a new random map path (?random/...) with a seed
2834 # that depends on the exit object
2835
2836 my $rmp = parse_random_map_params $exit->msg;
2837
2838 if ($exit->map) {
2839 $rmp->{region} = $exit->region->name;
2840 $rmp->{origin_map} = $exit->map->path;
2841 $rmp->{origin_x} = $exit->x;
2842 $rmp->{origin_y} = $exit->y;
2843
2844 $exit->map->touch;
2845 }
2846
2847 $rmp->{random_seed} ||= $exit->random_seed;
2848
2849 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2850 my $md5 = Digest::MD5::md5_hex $data;
2851 my $meta = "$RANDOMDIR/$md5.meta";
2852
2853 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2854 aio_write $fh, 0, (length $data), $data, 0;
2855 undef $fh;
2856 aio_rename "$meta~", $meta;
2857
2858 my $slaying = "?random/$md5";
2859
2860 if ($exit->valid) {
2861 $exit->slaying ("?random/$md5");
2862 $exit->msg (undef);
2863 }
2864 }
2865}
2866
2867sub cf::object::player::enter_exit {
2868 my ($self, $exit) = @_;
2869
2870 return unless $self->type == cf::PLAYER;
2871
2872 $self->enter_link;
2873
2874 (async {
2875 $Coro::current->{desc} = "enter_exit";
2876
2877 unless (eval {
2878 $self->deactivate_recursive; # just to be sure
2879
2880 # random map handling
2881 {
2882 my $guard = cf::lock_acquire "exit_prepare:$exit";
2883
2884 prepare_random_map $exit
2885 if $exit->slaying eq "/!";
2886 }
2887
2888 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2889 my $x = $exit->stats->hp;
2890 my $y = $exit->stats->sp;
2891
2892 $self->goto ($map, $x, $y);
2893
2894 # if exit is damned, update players death & WoR home-position
2895 $self->contr->savebed ($map, $x, $y)
2896 if $exit->flag (cf::FLAG_DAMNED);
2897
2898 1
2899 }) {
2900 $self->message ("Something went wrong deep within the deliantra server. "
2901 . "I'll try to bring you back to the map you were before. "
2902 . "Please report this to the dungeon master!",
2903 cf::NDI_UNIQUE | cf::NDI_RED);
2904
2905 error "ERROR in enter_exit: $@";
2906 $self->leave_link;
2907 }
2908 })->prio (1);
2909}
2910
2911=head3 cf::client
2912
2913=over 4
2914
2915=item $client->send_drawinfo ($text, $flags)
2916
2917Sends a drawinfo packet to the client. Circumvents output buffering so
2918should not be used under normal circumstances.
2919
2920=cut
2921
2922sub cf::client::send_drawinfo {
2923 my ($self, $text, $flags) = @_;
2924
2925 utf8::encode $text;
2926 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2927}
2928
2929=item $client->send_big_packet ($pkt)
2930
2931Like C<send_packet>, but tries to compress large packets, and fragments
2932them as required.
2933
2934=cut
2935
2936our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2937
2938sub cf::client::send_big_packet {
2939 my ($self, $pkt) = @_;
2940
2941 # try lzf for large packets
2942 $pkt = "lzf " . Compress::LZF::compress $pkt
2943 if 1024 <= length $pkt and $self->{can_lzf};
2944
2945 # split very large packets
2946 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2947 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2948 $pkt = "frag";
2949 }
2950
2951 $self->send_packet ($pkt);
2952}
2953
2954=item $client->send_msg ($channel, $msg, $color, [extra...])
2955
2956Send a drawinfo or msg packet to the client, formatting the msg for the
2957client if neccessary. C<$type> should be a string identifying the type of
2958the message, with C<log> being the default. If C<$color> is negative, suppress
2959the message unless the client supports the msg packet.
2960
2961=cut
2962
2963# non-persistent channels (usually the info channel)
2964our %CHANNEL = (
2965 "c/motd" => {
2966 id => "infobox",
2967 title => "MOTD",
2968 reply => undef,
2969 tooltip => "The message of the day",
2970 },
2971 "c/identify" => {
2972 id => "infobox",
2973 title => "Identify",
2974 reply => undef,
2975 tooltip => "Items recently identified",
2976 },
2977 "c/examine" => {
2978 id => "infobox",
2979 title => "Examine",
2980 reply => undef,
2981 tooltip => "Signs and other items you examined",
2982 },
2983 "c/shopinfo" => {
2984 id => "infobox",
2985 title => "Shop Info",
2986 reply => undef,
2987 tooltip => "What your bargaining skill tells you about the shop",
2988 },
2989 "c/book" => {
2990 id => "infobox",
2991 title => "Book",
2992 reply => undef,
2993 tooltip => "The contents of a note or book",
2994 },
2995 "c/lookat" => {
2996 id => "infobox",
2997 title => "Look",
2998 reply => undef,
2999 tooltip => "What you saw there",
3000 },
3001 "c/who" => {
3002 id => "infobox",
3003 title => "Players",
3004 reply => undef,
3005 tooltip => "Shows players who are currently online",
3006 },
3007 "c/body" => {
3008 id => "infobox",
3009 title => "Body Parts",
3010 reply => undef,
3011 tooltip => "Shows which body parts you posess and are available",
3012 },
3013 "c/statistics" => {
3014 id => "infobox",
3015 title => "Statistics",
3016 reply => undef,
3017 tooltip => "Shows your primary statistics",
3018 },
3019 "c/skills" => {
3020 id => "infobox",
3021 title => "Skills",
3022 reply => undef,
3023 tooltip => "Shows your experience per skill and item power",
3024 },
3025 "c/shopitems" => {
3026 id => "infobox",
3027 title => "Shop Items",
3028 reply => undef,
3029 tooltip => "Shows the items currently for sale in this shop",
3030 },
3031 "c/resistances" => {
3032 id => "infobox",
3033 title => "Resistances",
3034 reply => undef,
3035 tooltip => "Shows your resistances",
3036 },
3037 "c/pets" => {
3038 id => "infobox",
3039 title => "Pets",
3040 reply => undef,
3041 tooltip => "Shows information abotu your pets/a specific pet",
3042 },
3043 "c/perceiveself" => {
3044 id => "infobox",
3045 title => "Perceive Self",
3046 reply => undef,
3047 tooltip => "You gained detailed knowledge about yourself",
3048 },
3049 "c/uptime" => {
3050 id => "infobox",
3051 title => "Uptime",
3052 reply => undef,
3053 tooltip => "How long the server has been running since last restart",
3054 },
3055 "c/mapinfo" => {
3056 id => "infobox",
3057 title => "Map Info",
3058 reply => undef,
3059 tooltip => "Information related to the maps",
3060 },
3061 "c/party" => {
3062 id => "party",
3063 title => "Party",
3064 reply => "gsay ",
3065 tooltip => "Messages and chat related to your party",
3066 },
3067 "c/death" => {
3068 id => "death",
3069 title => "Death",
3070 reply => undef,
3071 tooltip => "Reason for and more info about your most recent death",
3072 },
3073 "c/say" => $SAY_CHANNEL,
3074 "c/chat" => $CHAT_CHANNEL,
3075);
3076
3077sub cf::client::send_msg {
3078 my ($self, $channel, $msg, $color, @extra) = @_;
3079
3080 $msg = $self->pl->expand_cfpod ($msg)
3081 unless $color & cf::NDI_VERBATIM;
3082
3083 $color &= cf::NDI_CLIENT_MASK; # just in case...
3084
3085 # check predefined channels, for the benefit of C
3086 if ($CHANNEL{$channel}) {
3087 $channel = $CHANNEL{$channel};
3088
3089 $self->ext_msg (channel_info => $channel);
3090 $channel = $channel->{id};
3091
3092 } elsif (ref $channel) {
3093 # send meta info to client, if not yet sent
3094 unless (exists $self->{channel}{$channel->{id}}) {
3095 $self->{channel}{$channel->{id}} = $channel;
3096 $self->ext_msg (channel_info => $channel);
3097 }
3098
3099 $channel = $channel->{id};
3100 }
3101
3102 return unless @extra || length $msg;
3103
3104 # default colour, mask it out
3105 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3106 if $color & cf::NDI_DEF;
3107
3108 my $pkt = "msg "
3109 . $self->{json_coder}->encode (
3110 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3111 );
3112
3113 $self->send_big_packet ($pkt);
3114}
3115
3116=item $client->ext_msg ($type, @msg)
3117
3118Sends an ext event to the client.
3119
3120=cut
3121
3122sub cf::client::ext_msg($$@) {
3123 my ($self, $type, @msg) = @_;
3124
3125 if ($self->extcmd == 2) {
3126 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3127 } elsif ($self->extcmd == 1) { # TODO: remove
3128 push @msg, msgtype => "event_$type";
3129 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3130 }
3131}
3132
3133=item $client->ext_reply ($msgid, @msg)
3134
3135Sends an ext reply to the client.
3136
3137=cut
3138
3139sub cf::client::ext_reply($$@) {
3140 my ($self, $id, @msg) = @_;
3141
3142 if ($self->extcmd == 2) {
3143 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
3144 } elsif ($self->extcmd == 1) {
3145 #TODO: version 1, remove
3146 unshift @msg, msgtype => "reply", msgid => $id;
3147 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3148 }
3149}
3150
3151=item $success = $client->query ($flags, "text", \&cb)
3152
3153Queues a query to the client, calling the given callback with
3154the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
3155C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
3156
3157Queries can fail, so check the return code. Or don't, as queries will
3158become reliable at some point in the future.
3159
3160=cut
3161
3162sub cf::client::query {
3163 my ($self, $flags, $text, $cb) = @_;
3164
3165 return unless $self->state == ST_PLAYING
3166 || $self->state == ST_SETUP
3167 || $self->state == ST_CUSTOM;
3168
3169 $self->state (ST_CUSTOM);
3170
3171 utf8::encode $text;
3172 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
3173
3174 $self->send_packet ($self->{query_queue}[0][0])
3175 if @{ $self->{query_queue} } == 1;
3176
3177 1
3178}
3179
3180cf::client->attach (
3181 on_connect => sub {
3182 my ($ns) = @_;
3183
3184 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3185 },
3186 on_reply => sub {
3187 my ($ns, $msg) = @_;
3188
3189 # this weird shuffling is so that direct followup queries
3190 # get handled first
3191 my $queue = delete $ns->{query_queue}
3192 or return; # be conservative, not sure how that can happen, but we saw a crash here
3193
3194 (shift @$queue)->[1]->($msg);
3195 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
3196
3197 push @{ $ns->{query_queue} }, @$queue;
3198
3199 if (@{ $ns->{query_queue} } == @$queue) {
3200 if (@$queue) {
3201 $ns->send_packet ($ns->{query_queue}[0][0]);
3202 } else {
3203 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
3204 }
3205 }
3206 },
3207 on_exticmd => sub {
3208 my ($ns, $buf) = @_;
3209
3210 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3211
3212 if (ref $msg) {
3213 my ($type, $reply, @payload) =
3214 "ARRAY" eq ref $msg
3215 ? @$msg
3216 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3217
3218 my @reply;
3219
3220 if (my $cb = $EXTICMD{$type}) {
3221 @reply = $cb->($ns, @payload);
3222 }
3223
3224 $ns->ext_reply ($reply, @reply)
3225 if $reply;
3226
3227 } else {
3228 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3229 }
3230
3231 cf::override;
3232 },
3233);
3234
3235=item $client->async (\&cb)
3236
3237Create a new coroutine, running the specified callback. The coroutine will
3238be automatically cancelled when the client gets destroyed (e.g. on logout,
3239or loss of connection).
3240
3241=cut
3242
3243sub cf::client::async {
3244 my ($self, $cb) = @_;
3245
3246 my $coro = &Coro::async ($cb);
3247
3248 $coro->on_destroy (sub {
3249 delete $self->{_coro}{$coro+0};
3250 });
3251
3252 $self->{_coro}{$coro+0} = $coro;
3253
3254 $coro
3255}
3256
3257cf::client->attach (
3258 on_client_destroy => sub {
3259 my ($ns) = @_;
3260
3261 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
3262 },
3263);
3264
3265=back
3266
832 3267
833=head2 SAFE SCRIPTING 3268=head2 SAFE SCRIPTING
834 3269
835Functions that provide a safe environment to compile and execute 3270Functions that provide a safe environment to compile and execute
836snippets of perl code without them endangering the safety of the server 3271snippets of perl code without them endangering the safety of the server
… …
843our $safe = new Safe "safe"; 3278our $safe = new Safe "safe";
844our $safe_hole = new Safe::Hole; 3279our $safe_hole = new Safe::Hole;
845 3280
846$SIG{FPE} = 'IGNORE'; 3281$SIG{FPE} = 'IGNORE';
847 3282
848$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3283$safe->permit_only (Opcode::opset qw(
3284 :base_core :base_mem :base_orig :base_math :base_loop
3285 grepstart grepwhile mapstart mapwhile
3286 sort time
3287));
849 3288
850# here we export the classes and methods available to script code 3289# here we export the classes and methods available to script code
851 3290
852=pod 3291=pod
853 3292
854The following fucntions and emthods are available within a safe environment: 3293The following functions and methods are available within a safe environment:
855 3294
856 cf::object contr pay_amount pay_player map 3295 cf::object
3296 contr pay_amount pay_player map x y force_find force_add destroy
3297 insert remove name archname title slaying race decrease split
3298 value
3299
857 cf::object::player player 3300 cf::object::player
858 cf::player peaceful 3301 player
859 cf::map trigger 3302
3303 cf::player
3304 peaceful
3305
3306 cf::map
3307 trigger
860 3308
861=cut 3309=cut
862 3310
863for ( 3311for (
864 ["cf::object" => qw(contr pay_amount pay_player map)], 3312 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3313 insert remove inv nrof name archname title slaying race
3314 decrease split destroy change_exp value msg lore send_msg)],
865 ["cf::object::player" => qw(player)], 3315 ["cf::object::player" => qw(player)],
866 ["cf::player" => qw(peaceful)], 3316 ["cf::player" => qw(peaceful send_msg)],
867 ["cf::map" => qw(trigger)], 3317 ["cf::map" => qw(trigger)],
868) { 3318) {
869 no strict 'refs';
870 my ($pkg, @funs) = @$_; 3319 my ($pkg, @funs) = @$_;
871 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3320 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
872 for @funs; 3321 for @funs;
873} 3322}
874 3323
… …
889 3338
890 my $qcode = $code; 3339 my $qcode = $code;
891 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3340 $qcode =~ s/"/‟/g; # not allowed in #line filenames
892 $qcode =~ s/\n/\\n/g; 3341 $qcode =~ s/\n/\\n/g;
893 3342
3343 %vars = (_dummy => 0) unless %vars;
3344
3345 my @res;
894 local $_; 3346 local $_;
895 local @safe::cf::_safe_eval_args = values %vars;
896 3347
897 my $eval = 3348 my $eval =
898 "do {\n" 3349 "do {\n"
899 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3350 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
900 . "#line 0 \"{$qcode}\"\n" 3351 . "#line 0 \"{$qcode}\"\n"
901 . $code 3352 . $code
902 . "\n}" 3353 . "\n}"
903 ; 3354 ;
904 3355
3356 if ($CFG{safe_eval}) {
905 sub_generation_inc; 3357 sub_generation_inc;
3358 local @safe::cf::_safe_eval_args = values %vars;
906 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3359 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
907 sub_generation_inc; 3360 sub_generation_inc;
3361 } else {
3362 local @cf::_safe_eval_args = values %vars;
3363 @res = wantarray ? eval eval : scalar eval $eval;
3364 }
908 3365
909 if ($@) { 3366 if ($@) {
910 warn "$@"; 3367 warn "$@",
911 warn "while executing safe code '$code'\n"; 3368 "while executing safe code '$code'\n",
912 warn "with arguments " . (join " ", %vars) . "\n"; 3369 "with arguments " . (join " ", %vars) . "\n";
913 } 3370 }
914 3371
915 wantarray ? @res : $res[0] 3372 wantarray ? @res : $res[0]
916} 3373}
917 3374
… …
931=cut 3388=cut
932 3389
933sub register_script_function { 3390sub register_script_function {
934 my ($fun, $cb) = @_; 3391 my ($fun, $cb) = @_;
935 3392
936 no strict 'refs'; 3393 $fun = "safe::$fun" if $CFG{safe_eval};
937 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3394 *$fun = $safe_hole->wrap ($cb);
938} 3395}
939 3396
940=back 3397=back
941 3398
942=cut 3399=cut
943 3400
944############################################################################# 3401#############################################################################
3402# the server's init and main functions
945 3403
946=head2 EXTENSION DATABASE SUPPORT 3404sub load_facedata($) {
3405 my ($path) = @_;
947 3406
948Crossfire maintains a very simple database for extension use. It can 3407 # HACK to clear player env face cache, we need some signal framework
949currently store anything that can be serialised using Storable, which 3408 # for this (global event?)
950excludes objects. 3409 %ext::player_env::MUSIC_FACE_CACHE = ();
951 3410
952The parameter C<$family> should best start with the name of the extension 3411 my $enc = JSON::XS->new->utf8->canonical->relaxed;
953using it, it should be unique.
954 3412
955=over 4 3413 trace "loading facedata from $path\n";
956 3414
957=item $hashref = cf::db_get $family 3415 0 < aio_load $path, my $facedata
3416 or die "$path: $!";
958 3417
959Return a hashref for use by the extension C<$family>, which can be 3418 $facedata = Coro::Storable::thaw $facedata;
960modified. After modifications, you have to call C<cf::db_dirty> or
961C<cf::db_sync>.
962 3419
963=item $value = cf::db_get $family => $key 3420 $facedata->{version} == 2
3421 or cf::cleanup "$path: version mismatch, cannot proceed.";
964 3422
965Returns a single value from the database 3423 # patch in the exptable
3424 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3425 $facedata->{resource}{"res/exp_table"} = {
3426 type => FT_RSRC,
3427 data => $exp_table,
3428 hash => (Digest::MD5::md5 $exp_table),
3429 };
3430 cf::cede_to_tick;
966 3431
967=item cf::db_put $family => $hashref 3432 {
3433 my $faces = $facedata->{faceinfo};
968 3434
969Stores the given family hashref into the database. Updates are delayed, if 3435 while (my ($face, $info) = each %$faces) {
970you want the data to be synced to disk immediately, use C<cf::db_sync>. 3436 my $idx = (cf::face::find $face) || cf::face::alloc $face;
971 3437
972=item cf::db_put $family => $key => $value 3438 cf::face::set_visibility $idx, $info->{visibility};
3439 cf::face::set_magicmap $idx, $info->{magicmap};
3440 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3441 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
973 3442
974Stores the given C<$value> in the family hash. Updates are delayed, if you 3443 cf::cede_to_tick;
975want the data to be synced to disk immediately, use C<cf::db_sync>. 3444 }
976 3445
977=item cf::db_dirty 3446 while (my ($face, $info) = each %$faces) {
3447 next unless $info->{smooth};
978 3448
979Marks the database as dirty, to be updated at a later time. 3449 my $idx = cf::face::find $face
3450 or next;
980 3451
981=item cf::db_sync 3452 if (my $smooth = cf::face::find $info->{smooth}) {
3453 cf::face::set_smooth $idx, $smooth;
3454 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3455 } else {
3456 error "smooth face '$info->{smooth}' not found for face '$face'";
3457 }
982 3458
983Immediately write the database to disk I<if it is dirty>. 3459 cf::cede_to_tick;
3460 }
3461 }
984 3462
985=cut 3463 {
3464 my $anims = $facedata->{animinfo};
986 3465
987our $DB; 3466 while (my ($anim, $info) = each %$anims) {
3467 cf::anim::set $anim, $info->{frames}, $info->{facings};
3468 cf::cede_to_tick;
3469 }
3470
3471 cf::anim::invalidate_all; # d'oh
3472 }
3473
3474 {
3475 my $res = $facedata->{resource};
3476
3477 while (my ($name, $info) = each %$res) {
3478 if (defined $info->{type}) {
3479 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3480
3481 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3482 cf::face::set_type $idx, $info->{type};
3483 } else {
3484 $RESOURCE{$name} = $info; # unused
3485 }
3486
3487 cf::cede_to_tick;
3488 }
3489 }
3490
3491 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3492
3493 1
3494}
3495
3496register_exticmd fx_want => sub {
3497 my ($ns, $want) = @_;
3498
3499 while (my ($k, $v) = each %$want) {
3500 $ns->fx_want ($k, $v);
3501 }
3502};
3503
3504sub load_resource_file($) {
3505 my $guard = lock_acquire "load_resource_file";
3506
3507 my $status = load_resource_file_ $_[0];
3508 get_slot 0.1, 100;
3509 cf::arch::commit_load;
3510
3511 $status
3512}
3513
3514sub reload_regions {
3515 # HACK to clear player env face cache, we need some signal framework
3516 # for this (global event?)
3517 %ext::player_env::MUSIC_FACE_CACHE = ();
3518
3519 load_resource_file "$MAPDIR/regions"
3520 or die "unable to load regions file\n";
3521
3522 for (cf::region::list) {
3523 $_->{match} = qr/$_->{match}/
3524 if exists $_->{match};
3525 }
3526}
3527
3528sub reload_facedata {
3529 load_facedata "$DATADIR/facedata"
3530 or die "unable to load facedata\n";
3531}
3532
3533sub reload_archetypes {
3534 load_resource_file "$DATADIR/archetypes"
3535 or die "unable to load archetypes\n";
3536}
3537
3538sub reload_treasures {
3539 load_resource_file "$DATADIR/treasures"
3540 or die "unable to load treasurelists\n";
3541}
3542
3543sub reload_sound {
3544 trace "loading sound config from $DATADIR/sound\n";
3545
3546 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3547 or die "$DATADIR/sound $!";
3548
3549 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3550
3551 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3552 my $sound = $soundconf->{compat}[$_]
3553 or next;
3554
3555 my $face = cf::face::find "sound/$sound->[1]";
3556 cf::sound::set $sound->[0] => $face;
3557 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3558 }
3559
3560 while (my ($k, $v) = each %{$soundconf->{event}}) {
3561 my $face = cf::face::find "sound/$v";
3562 cf::sound::set $k => $face;
3563 }
3564}
3565
3566sub reload_resources {
3567 trace "reloading resource files...\n";
3568
3569 reload_exp_table;
3570 reload_materials;
3571 reload_facedata;
3572 reload_sound;
3573 reload_archetypes;
3574 reload_regions;
3575 reload_treasures;
3576
3577 trace "finished reloading resource files\n";
3578}
3579
3580sub reload_config {
3581 trace "reloading config file...\n";
3582
3583 0 < aio_load "$CONFDIR/config", my $config
3584 or die "$CONFDIR/config: $!";
3585
3586 utf8::decode $config;
3587 *CFG = yaml_load $config;
3588
3589 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
3590
3591 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3592 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3593
3594 if (exists $CFG{mlockall}) {
3595 eval {
3596 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3597 and die "WARNING: m(un)lockall failed: $!\n";
3598 };
3599 warn $@ if $@;
3600 }
3601}
3602
3603sub pidfile() {
3604 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3605 or die "$PIDFILE: $!";
3606 flock $fh, &Fcntl::LOCK_EX
3607 or die "$PIDFILE: flock: $!";
3608 $fh
3609}
3610
3611# make sure only one server instance is running at any one time
3612sub atomic {
3613 my $fh = pidfile;
3614
3615 my $pid = <$fh>;
3616 kill 9, $pid if $pid > 0;
3617
3618 seek $fh, 0, 0;
3619 print $fh $$;
3620}
3621
3622sub main_loop {
3623 trace "EV::loop starting\n";
3624 if (1) {
3625 EV::loop;
3626 }
3627 trace "EV::loop returned\n";
3628 goto &main_loop unless $REALLY_UNLOOP;
3629}
3630
3631sub main {
3632 cf::init_globals; # initialise logging
3633
3634 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3635 LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3636 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3637 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3638
3639 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3640
3641 # we must not ever block the main coroutine
3642 local $Coro::idle = sub {
3643 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3644 (async {
3645 $Coro::current->{desc} = "IDLE BUG HANDLER";
3646 EV::loop EV::LOOP_ONESHOT;
3647 })->prio (Coro::PRIO_MAX);
3648 };
3649
3650 evthread_start IO::AIO::poll_fileno;
3651
3652 cf::sync_job {
3653 cf::incloader::init ();
3654
3655 cf::init_anim;
3656 cf::init_attackmess;
3657 cf::init_dynamic;
3658
3659 cf::load_settings;
3660
3661 reload_resources;
3662 reload_config;
3663 db_init;
3664
3665 cf::init_uuid;
3666 cf::init_signals;
3667 cf::init_skills;
3668
3669 cf::init_beforeplay;
3670
3671 atomic;
3672
3673 load_extensions;
3674
3675 utime time, time, $RUNTIMEFILE;
3676
3677 # no (long-running) fork's whatsoever before this point(!)
3678 use POSIX ();
3679 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3680
3681 cf::_post_init 0;
3682 };
3683
3684 cf::object::thawer::errors_are_fatal 0;
3685 info "parse errors in files are no longer fatal from this point on.\n";
3686
3687 my $free_main; $free_main = EV::idle sub {
3688 undef $free_main;
3689 undef &main; # free gobs of memory :)
3690 };
3691
3692 goto &main_loop;
3693}
3694
3695#############################################################################
3696# initialisation and cleanup
3697
3698# install some emergency cleanup handlers
3699BEGIN {
3700 our %SIGWATCHER = ();
3701 for my $signal (qw(INT HUP TERM)) {
3702 $SIGWATCHER{$signal} = AE::signal $signal, sub {
3703 cf::cleanup "SIG$signal";
3704 };
3705 }
3706}
3707
3708sub write_runtime_sync {
3709 my $t0 = AE::time;
3710
3711 # first touch the runtime file to show we are still running:
3712 # the fsync below can take a very very long time.
3713
3714 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3715
3716 my $guard = cf::lock_acquire "write_runtime";
3717
3718 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3719 or return;
3720
3721 my $value = $cf::RUNTIME + 90 + 10;
3722 # 10 is the runtime save interval, for a monotonic clock
3723 # 60 allows for the watchdog to kill the server.
3724
3725 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3726 and return;
3727
3728 # always fsync - this file is important
3729 aio_fsync $fh
3730 and return;
3731
3732 # touch it again to show we are up-to-date
3733 aio_utime $fh, undef, undef;
3734
3735 close $fh
3736 or return;
3737
3738 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3739 and return;
3740
3741 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3742
3743 1
3744}
3745
3746our $uuid_lock;
3747our $uuid_skip;
3748
3749sub write_uuid_sync($) {
3750 $uuid_skip ||= $_[0];
3751
3752 return if $uuid_lock;
3753 local $uuid_lock = 1;
3754
3755 my $uuid = "$LOCALDIR/uuid";
3756
3757 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3758 or return;
3759
3760 my $value = uuid_seq uuid_cur;
3761
3762 unless ($value) {
3763 info "cowardly refusing to write zero uuid value!\n";
3764 return;
3765 }
3766
3767 my $value = uuid_str $value + $uuid_skip;
3768 $uuid_skip = 0;
3769
3770 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3771 and return;
3772
3773 # always fsync - this file is important
3774 aio_fsync $fh
3775 and return;
3776
3777 close $fh
3778 or return;
3779
3780 aio_rename "$uuid~", $uuid
3781 and return;
3782
3783 trace "uuid file written ($value).\n";
3784
3785 1
3786
3787}
3788
3789sub write_uuid($$) {
3790 my ($skip, $sync) = @_;
3791
3792 $sync ? write_uuid_sync $skip
3793 : async { write_uuid_sync $skip };
3794}
3795
3796sub emergency_save() {
3797 my $freeze_guard = cf::freeze_mainloop;
3798
3799 info "emergency_perl_save: enter\n";
3800
3801 # this is a trade-off: we want to be very quick here, so
3802 # save all maps without fsync, and later call a global sync
3803 # (which in turn might be very very slow)
3804 local $USE_FSYNC = 0;
3805
3806 cf::sync_job {
3807 cf::write_runtime_sync; # external watchdog should not bark
3808
3809 # use a peculiar iteration method to avoid tripping on perl
3810 # refcount bugs in for. also avoids problems with players
3811 # and maps saved/destroyed asynchronously.
3812 info "emergency_perl_save: begin player save\n";
3813 for my $login (keys %cf::PLAYER) {
3814 my $pl = $cf::PLAYER{$login} or next;
3815 $pl->valid or next;
3816 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3817 $pl->save;
3818 }
3819 info "emergency_perl_save: end player save\n";
3820
3821 cf::write_runtime_sync; # external watchdog should not bark
3822
3823 info "emergency_perl_save: begin map save\n";
3824 for my $path (keys %cf::MAP) {
3825 my $map = $cf::MAP{$path} or next;
3826 $map->valid or next;
3827 $map->save;
3828 }
3829 info "emergency_perl_save: end map save\n";
3830
3831 cf::write_runtime_sync; # external watchdog should not bark
3832
3833 info "emergency_perl_save: begin database checkpoint\n";
3834 BDB::db_env_txn_checkpoint $DB_ENV;
3835 info "emergency_perl_save: end database checkpoint\n";
3836
3837 info "emergency_perl_save: begin write uuid\n";
3838 write_uuid_sync 1;
3839 info "emergency_perl_save: end write uuid\n";
3840
3841 cf::write_runtime_sync; # external watchdog should not bark
3842
3843 trace "emergency_perl_save: syncing database to disk";
3844 BDB::db_env_txn_checkpoint $DB_ENV;
3845
3846 info "emergency_perl_save: starting sync\n";
3847 IO::AIO::aio_sync sub {
3848 info "emergency_perl_save: finished sync\n";
3849 };
3850
3851 cf::write_runtime_sync; # external watchdog should not bark
3852
3853 trace "emergency_perl_save: flushing outstanding aio requests";
3854 while (IO::AIO::nreqs || BDB::nreqs) {
3855 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3856 }
3857
3858 cf::write_runtime_sync; # external watchdog should not bark
3859 };
3860
3861 info "emergency_perl_save: leave\n";
3862}
3863
3864sub post_cleanup {
3865 my ($make_core) = @_;
3866
3867 IO::AIO::flush;
3868
3869 error Carp::longmess "post_cleanup backtrace"
3870 if $make_core;
3871
3872 my $fh = pidfile;
3873 unlink $PIDFILE if <$fh> == $$;
3874}
3875
3876# a safer delete_package, copied from Symbol
3877sub clear_package($) {
3878 my $pkg = shift;
3879
3880 # expand to full symbol table name if needed
3881 unless ($pkg =~ /^main::.*::$/) {
3882 $pkg = "main$pkg" if $pkg =~ /^::/;
3883 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3884 $pkg .= '::' unless $pkg =~ /::$/;
3885 }
3886
3887 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3888 my $stem_symtab = *{$stem}{HASH};
3889
3890 defined $stem_symtab and exists $stem_symtab->{$leaf}
3891 or return;
3892
3893 # clear all symbols
3894 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3895 for my $name (keys %$leaf_symtab) {
3896 _gv_clear *{"$pkg$name"};
3897# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3898 }
3899}
3900
3901sub do_reload_perl() {
3902 # can/must only be called in main
3903 unless (in_main) {
3904 error "can only reload from main coroutine";
3905 return;
3906 }
3907
3908 return if $RELOAD++;
3909
3910 my $t1 = AE::time;
3911
3912 while ($RELOAD) {
3913 cf::get_slot 0.1, -1, "reload_perl";
3914 info "perl_reload: reloading...";
3915
3916 trace "perl_reload: entering sync_job";
3917
3918 cf::sync_job {
3919 #cf::emergency_save;
3920
3921 trace "perl_reload: cancelling all extension coros";
3922 $_->cancel for values %EXT_CORO;
3923 %EXT_CORO = ();
3924
3925 trace "perl_reload: removing commands";
3926 %COMMAND = ();
3927
3928 trace "perl_reload: removing ext/exti commands";
3929 %EXTCMD = ();
3930 %EXTICMD = ();
3931
3932 trace "perl_reload: unloading/nuking all extensions";
3933 for my $pkg (@EXTS) {
3934 trace "... unloading $pkg";
3935
3936 if (my $cb = $pkg->can ("unload")) {
3937 eval {
3938 $cb->($pkg);
3939 1
3940 } or error "$pkg unloaded, but with errors: $@";
3941 }
3942
3943 trace "... clearing $pkg";
3944 clear_package $pkg;
3945 }
3946
3947 trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
3948 while (my ($k, $v) = each %INC) {
3949 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3950
3951 trace "... unloading $k";
3952 delete $INC{$k};
3953
3954 $k =~ s/\.pm$//;
3955 $k =~ s/\//::/g;
3956
3957 if (my $cb = $k->can ("unload_module")) {
3958 $cb->();
3959 }
3960
3961 clear_package $k;
3962 }
3963
3964 trace "perl_reload: getting rid of safe::, as good as possible";
3965 clear_package "safe::$_"
3966 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3967
3968 trace "perl_reload: unloading cf.pm \"a bit\"";
3969 delete $INC{"cf.pm"};
3970 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3971
3972 # don't, removes xs symbols, too,
3973 # and global variables created in xs
3974 #clear_package __PACKAGE__;
3975
3976 info "perl_reload: unload completed, starting to reload now";
3977
3978 trace "perl_reload: reloading cf.pm";
3979 require cf;
3980 cf::_connect_to_perl_1;
3981
3982 trace "perl_reload: loading config and database again";
3983 cf::reload_config;
3984
3985 trace "perl_reload: loading extensions";
3986 cf::load_extensions;
3987
3988 if ($REATTACH_ON_RELOAD) {
3989 trace "perl_reload: reattaching attachments to objects/players";
3990 _global_reattach; # objects, sockets
3991 trace "perl_reload: reattaching attachments to maps";
3992 reattach $_ for values %MAP;
3993 trace "perl_reload: reattaching attachments to players";
3994 reattach $_ for values %PLAYER;
3995 }
3996
3997 cf::_post_init 1;
3998
3999 trace "perl_reload: leaving sync_job";
4000
4001 1
4002 } or do {
4003 error $@;
4004 cf::cleanup "perl_reload: error, exiting.";
4005 };
4006
4007 --$RELOAD;
4008 }
4009
4010 $t1 = AE::time - $t1;
4011 info "perl_reload: completed in ${t1}s\n";
4012};
4013
4014our $RELOAD_WATCHER; # used only during reload
4015
4016sub reload_perl() {
4017 # doing reload synchronously and two reloads happen back-to-back,
4018 # coro crashes during coro_state_free->destroy here.
4019
4020 $RELOAD_WATCHER ||= cf::async {
4021 Coro::AIO::aio_wait cache_extensions;
4022
4023 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
4024 do_reload_perl;
4025 undef $RELOAD_WATCHER;
4026 };
4027 };
4028}
4029
4030register_command "reload" => sub {
4031 my ($who, $arg) = @_;
4032
4033 if ($who->flag (FLAG_WIZ)) {
4034 $who->message ("reloading server.");
4035 async {
4036 $Coro::current->{desc} = "perl_reload";
4037 reload_perl;
4038 };
4039 }
4040};
4041
4042#############################################################################
4043
4044my $bug_warning = 0;
4045
4046our @WAIT_FOR_TICK;
4047our @WAIT_FOR_TICK_BEGIN;
4048
4049sub wait_for_tick() {
4050 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4051
4052 my $signal = new Coro::Signal;
4053 push @WAIT_FOR_TICK, $signal;
4054 $signal->wait;
4055}
4056
4057sub wait_for_tick_begin() {
4058 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4059
4060 my $signal = new Coro::Signal;
4061 push @WAIT_FOR_TICK_BEGIN, $signal;
4062 $signal->wait;
4063}
4064
4065sub tick {
4066 if ($Coro::current != $Coro::main) {
4067 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
4068 unless ++$bug_warning > 10;
4069 return;
4070 }
4071
4072 cf::server_tick; # one server iteration
4073
4074 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
4075
4076 if ($NOW >= $NEXT_RUNTIME_WRITE) {
4077 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
4078 Coro::async_pool {
4079 $Coro::current->{desc} = "runtime saver";
4080 write_runtime_sync
4081 or error "ERROR: unable to write runtime file: $!";
4082 };
4083 }
4084
4085 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4086 $sig->send;
4087 }
4088 while (my $sig = shift @WAIT_FOR_TICK) {
4089 $sig->send;
4090 }
4091
4092 $LOAD = ($NOW - $TICK_START) / $TICK;
4093 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4094
4095 if (0) {
4096 if ($NEXT_TICK) {
4097 my $jitter = $TICK_START - $NEXT_TICK;
4098 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4099 debug "jitter $JITTER\n";#d#
4100 }
4101 }
4102}
988 4103
989{ 4104{
990 my $path = cf::localdir . "/database.pst"; 4105 # configure BDB
991 4106
992 sub db_load() { 4107 BDB::min_parallel 16;
993 warn "loading database $path\n";#d# remove later 4108 BDB::max_poll_reqs $TICK * 0.1;
994 $DB = stat $path ? Storable::retrieve $path : { }; 4109 $AnyEvent::BDB::WATCHER->priority (1);
995 }
996 4110
997 my $pid; 4111 unless ($DB_ENV) {
4112 $DB_ENV = BDB::db_env_create;
4113 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4114 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4115 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4116 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4117 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
998 4118
999 sub db_save() { 4119 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 { 4120 eval {
1036 $DB->{$_[0]} = $_[1]; 4121 BDB::db_env_open
1037 } 4122 $DB_ENV,
1038 db_dirty; 4123 $BDBDIR,
1039 } 4124 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
4125 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
4126 0666;
1040 4127
1041 cf::global->attach ( 4128 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 } 4129 };
1100 4130
1101 Symbol::delete_package $k; 4131 cf::cleanup "db_env_open(db): $@" if $@;
1102 } 4132 };
4133 }
1103 4134
1104 # sync database to disk 4135 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1105 cf::db_sync; 4136 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 }; 4137 };
1137 $msg->($@) if $@; 4138 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1138 4139 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 }; 4140 };
4141 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4142 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4143 };
1147} 4144}
1148 4145
1149register "<global>", __PACKAGE__; 4146{
4147 # configure IO::AIO
1150 4148
1151register_command "perl-reload" => sub { 4149 IO::AIO::min_parallel 8;
4150 IO::AIO::max_poll_time $TICK * 0.1;
4151 undef $AnyEvent::AIO::WATCHER;
4152}
4153
4154my $_log_backtrace;
4155
4156sub _log_backtrace {
1152 my ($who, $arg) = @_; 4157 my ($msg, @addr) = @_;
1153 4158
1154 if ($who->flag (FLAG_WIZ)) { 4159 $msg =~ s/\n//;
1155 _perl_reload { 4160
1156 warn $_[0]; 4161 # limit the # of concurrent backtraces
1157 $who->message ($_[0]); 4162 if ($_log_backtrace < 2) {
4163 ++$_log_backtrace;
4164 my $perl_bt = Carp::longmess $msg;
4165 async {
4166 $Coro::current->{desc} = "abt $msg";
4167
4168 my @bt = fork_call {
4169 @addr = map { sprintf "%x", $_ } @addr;
4170 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4171 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4172 or die "addr2line: $!";
4173
4174 my @funcs;
4175 my @res = <$fh>;
4176 chomp for @res;
4177 while (@res) {
4178 my ($func, $line) = splice @res, 0, 2, ();
4179 push @funcs, "[$func] $line";
4180 }
4181
4182 @funcs
4183 };
4184
4185 LOG llevInfo, "[ABT] $perl_bt\n";
4186 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4187 LOG llevInfo, "[ABT] $_\n" for @bt;
4188 --$_log_backtrace;
1158 }; 4189 };
1159 } 4190 } else {
1160}; 4191 LOG llevInfo, "[ABT] $msg\n";
1161 4192 LOG llevInfo, "[ABT] [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 }, 4193 }
1180); 4194}
1181 4195
1182IO::AIO::max_poll_time $TICK * 0.2; 4196# load additional modules
4197require "cf/$_.pm" for @EXTRA_MODULES;
4198cf::_connect_to_perl_2;
1183 4199
1184Event->io (fd => IO::AIO::poll_fileno, 4200END { cf::emergency_save }
1185 poll => 'r',
1186 prio => 5,
1187 data => WF_AUTOCANCEL,
1188 cb => \&IO::AIO::poll_cb);
1189 4201
11901 42021
1191 4203

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