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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.97 by root, Fri Dec 22 06:03:20 2006 UTC vs.
Revision 1.547 by root, Sun May 9 22:51:13 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;
2 24
3use utf8; 25use common::sense;
4use strict;
5 26
6use Symbol; 27use Symbol;
7use List::Util; 28use List::Util;
8use Storable; 29use Socket;
30use EV;
9use Opcode; 31use Opcode;
10use Safe; 32use Safe;
11use Safe::Hole; 33use Safe::Hole;
34use Storable ();
35use Carp ();
12 36
37use Guard ();
13use Coro; 38use Coro ();
39use Coro::State;
40use Coro::Handle;
41use Coro::EV;
14use Coro::Event; 42use Coro::AnyEvent;
15use Coro::Timer; 43use Coro::Timer;
16use Coro::Signal; 44use Coro::Signal;
17use Coro::Semaphore; 45use Coro::Semaphore;
46use Coro::SemaphoreSet;
47use Coro::AnyEvent;
48use Coro::AIO;
49use Coro::BDB 1.6;
50use Coro::Storable;
51use Coro::Util ();
18 52
53use JSON::XS 2.01 ();
54use BDB ();
55use Data::Dumper;
56use Fcntl;
57use YAML::XS ();
19use IO::AIO; 58use IO::AIO ();
20use YAML::Syck ();
21use Time::HiRes; 59use Time::HiRes;
60use Compress::LZF;
61use Digest::MD5 ();
22 62
23use Event; $Event::Eval = 1; # no idea why this is required, but it is 63AnyEvent::detect;
24 64
25# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 65# configure various modules to our taste
26$YAML::Syck::ImplicitUnicode = 1; 66#
67$Storable::canonical = 1; # reduce rsync transfers
68Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
27 69
28$Coro::main->prio (Coro::PRIO_MIN); 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" };
29 78
30sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 79sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
80
81our @ORIG_INC;
31 82
32our %COMMAND = (); 83our %COMMAND = ();
33our %COMMAND_TIME = (); 84our %COMMAND_TIME = ();
85
86our @EXTS = (); # list of extension package names
34our %EXTCMD = (); 87our %EXTCMD = ();
88our %EXTICMD = ();
89our %EXT_CORO = (); # coroutines bound to extensions
90our %EXT_MAP = (); # pluggable maps
35 91
36_init_vars; 92our $RELOAD; # number of reloads so far, non-zero while in reload
37
38our @EVENT; 93our @EVENT;
39our $LIBDIR = datadir . "/ext"; 94our @REFLECT; # set by XS
95our %REFLECT; # set by us
40 96
41our $TICK = MAX_TIME * 1e-6; 97our $CONFDIR = confdir;
42our $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
43our $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);
44 130
45our %CFG; 131our %CFG;
46 132
47our $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}
48 176
49############################################################################# 177#############################################################################
50 178
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
51=head2 GLOBAL VARIABLES 190=head2 GLOBAL VARIABLES
52 191
53=over 4 192=over 4
54 193
55=item $cf::UPTIME 194=item $cf::UPTIME
56 195
57The timestamp of the server start (so not actually an uptime). 196The timestamp of the server start (so not actually an uptime).
58 197
59=item $cf::LIBDIR 198=item $cf::RUNTIME
60 199
61The 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
62be 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.
63 215
64=item $cf::TICK 216=item $cf::TICK
65 217
66The interval between server ticks, in seconds. 218The interval between server ticks, in seconds.
67 219
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 $cf::LOAD
227
228The raw value load value from the last tick.
229
68=item %cf::CFG 230=item %cf::CFG
69 231
70Configuration for the server, loaded from C</etc/crossfire/config>, or 232Configuration for the server, loaded from C</etc/deliantra-server/config>, or
71from wherever your confdir points to. 233from wherever your confdir points to.
72 234
235=item cf::wait_for_tick, cf::wait_for_tick_begin
236
237These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
238returns directly I<after> the tick processing (and consequently, can only wake one thread
239per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
240
241=cut
242
243sub wait_for_tick();
244sub wait_for_tick_begin();
245
246=item @cf::INVOKE_RESULTS
247
248This array contains the results of the last C<invoke ()> call. When
249C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
250that call.
251
252=item %cf::REFLECT
253
254Contains, for each (C++) class name, a hash reference with information
255about object members (methods, scalars, arrays and flags) and other
256metadata, which is useful for introspection.
257
73=back 258=back
74 259
75=cut 260=cut
76 261
77BEGIN { 262sub error(@) { LOG llevError, join "", @_ }
78 *CORE::GLOBAL::warn = sub { 263sub warn (@) { LOG llevWarn , join "", @_ }
264sub info (@) { LOG llevInfo , join "", @_ }
265sub debug(@) { LOG llevDebug, join "", @_ }
266sub trace(@) { LOG llevTrace, join "", @_ }
267
268$Coro::State::WARNHOOK = sub {
79 my $msg = join "", @_; 269 my $msg = join "", @_;
270
80 $msg .= "\n" 271 $msg .= "\n"
81 unless $msg =~ /\n$/; 272 unless $msg =~ /\n$/;
82 273
83 print STDERR "cfperl: $msg"; 274 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
84 LOG llevError, "cfperl: $msg"; 275
85 }; 276 LOG llevWarn, $msg;
86} 277};
278
279$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};
87 292
88@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 293@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 294@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
90@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 295@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
91@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 296@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
92@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';
93@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)
94 300
95# 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
96# within the Safe compartment. 302# within the Safe compartment.
97for my $pkg (qw( 303for my $pkg (qw(
98 cf::global 304 cf::global cf::attachable
99 cf::object cf::object::player 305 cf::object cf::object::player
100 cf::client cf::player 306 cf::client cf::player
101 cf::arch cf::living 307 cf::arch cf::living
308 cf::map cf::mapspace
102 cf::map cf::party cf::region 309 cf::party cf::region
103)) { 310)) {
104 no strict 'refs';
105 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 311 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
106} 312}
107 313
108$Event::DIED = sub { 314$EV::DIED = sub {
109 warn "error in event callback: @_"; 315 Carp::cluck "error in event callback: @_";
110}; 316};
111 317
112my %ext_pkg; 318#############################################################################
113my @exts;
114my @hook;
115 319
116=head2 UTILITY FUNCTIONS 320=head2 UTILITY FUNCTIONS
117 321
118=over 4 322=over 4
119 323
120=cut 324=item dumpval $ref
121 325
122use JSON::Syck (); # TODO# replace by JSON::PC once working 326=cut
123 327
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
124=item $ref = cf::from_json $json 347=item $ref = cf::decode_json $json
125 348
126Converts a JSON string into the corresponding perl data structure. 349Converts a JSON string into the corresponding perl data structure.
127 350
128=cut
129
130sub from_json($) {
131 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
132 JSON::Syck::Load $_[0]
133}
134
135=item $json = cf::to_json $ref 351=item $json = cf::encode_json $ref
136 352
137Converts a perl data structure into its JSON representation. 353Converts a perl data structure into its JSON representation.
138 354
139=cut 355=cut
140 356
141sub to_json($) { 357our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
142 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 358
143 JSON::Syck::Dump $_[0] 359sub encode_json($) { $json_coder->encode ($_[0]) }
360sub decode_json($) { $json_coder->decode ($_[0]) }
361
362=item cf::post_init { BLOCK }
363
364Execute the given codeblock, I<after> all extensions have been (re-)loaded,
365but I<before> the server starts ticking again.
366
367The cdoeblock will have a single boolean argument to indicate whether this
368is a reload or not.
369
370=cut
371
372sub post_init(&) {
373 push @POST_INIT, shift;
374}
375
376=item cf::lock_wait $string
377
378Wait until the given lock is available. See cf::lock_acquire.
379
380=item my $lock = cf::lock_acquire $string
381
382Wait until the given lock is available and then acquires it and returns
383a L<Guard> object. If the guard object gets destroyed (goes out of scope,
384for example when the coroutine gets canceled), the lock is automatically
385returned.
386
387Locks are *not* recursive, locking from the same coro twice results in a
388deadlocked coro.
389
390Lock names should begin with a unique identifier (for example, cf::map::find
391uses map_find and cf::map::load uses map_load).
392
393=item $locked = cf::lock_active $string
394
395Return true if the lock is currently active, i.e. somebody has locked it.
396
397=cut
398
399our $LOCKS = new Coro::SemaphoreSet;
400
401sub lock_wait($) {
402 $LOCKS->wait ($_[0]);
403}
404
405sub lock_acquire($) {
406 $LOCKS->guard ($_[0])
407}
408
409sub lock_active($) {
410 $LOCKS->count ($_[0]) < 1
411}
412
413sub freeze_mainloop {
414 tick_inhibit_inc;
415
416 &Guard::guard (\&tick_inhibit_dec);
417}
418
419=item cf::periodic $interval, $cb
420
421Like EV::periodic, but randomly selects a starting point so that the actions
422get spread over time.
423
424=cut
425
426sub periodic($$) {
427 my ($interval, $cb) = @_;
428
429 my $start = rand List::Util::min 180, $interval;
430
431 EV::periodic $start, $interval, 0, $cb
432}
433
434=item cf::get_slot $time[, $priority[, $name]]
435
436Allocate $time seconds of blocking CPU time at priority C<$priority>:
437This call blocks and returns only when you have at least C<$time> seconds
438of cpu time till the next tick. The slot is only valid till the next cede.
439
440The optional C<$name> can be used to identify the job to run. It might be
441used for statistical purposes and should identify the same time-class.
442
443Useful for short background jobs.
444
445=cut
446
447our @SLOT_QUEUE;
448our $SLOT_QUEUE;
449our $SLOT_DECAY = 0.9;
450
451$SLOT_QUEUE->cancel if $SLOT_QUEUE;
452$SLOT_QUEUE = Coro::async {
453 $Coro::current->desc ("timeslot manager");
454
455 my $signal = new Coro::Signal;
456 my $busy;
457
458 while () {
459 next_job:
460
461 my $avail = cf::till_tick;
462
463 for (0 .. $#SLOT_QUEUE) {
464 if ($SLOT_QUEUE[$_][0] <= $avail) {
465 $busy = 0;
466 my $job = splice @SLOT_QUEUE, $_, 1, ();
467 $job->[2]->send;
468 Coro::cede;
469 goto next_job;
470 } else {
471 $SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
472 }
473 }
474
475 if (@SLOT_QUEUE) {
476 # we do not use wait_for_tick() as it returns immediately when tick is inactive
477 push @cf::WAIT_FOR_TICK, $signal;
478 $signal->wait;
479 } else {
480 $busy = 0;
481 Coro::schedule;
482 }
483 }
484};
485
486sub get_slot($;$$) {
487 return if tick_inhibit || $Coro::current == $Coro::main;
488
489 my ($time, $pri, $name) = @_;
490
491 $time = clamp $time, 0.01, $TICK * .6;
492
493 my $sig = new Coro::Signal;
494
495 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
496 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
497 $SLOT_QUEUE->ready;
498 $sig->wait;
499}
500
501=item cf::async { BLOCK }
502
503Currently the same as Coro::async_pool, meaning you cannot use
504C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
505thing you are allowed to do is call C<prio> on it.
506
507=cut
508
509BEGIN { *async = \&Coro::async_pool }
510
511=item cf::sync_job { BLOCK }
512
513The design of Deliantra requires that the main coroutine ($Coro::main)
514is always able to handle events or runnable, as Deliantra is only
515partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
516acceptable.
517
518If it must be done, put the blocking parts into C<sync_job>. This will run
519the given BLOCK in another coroutine while waiting for the result. The
520server will be frozen during this time, so the block should either finish
521fast or be very important.
522
523=cut
524
525sub sync_job(&) {
526 my ($job) = @_;
527
528 if (in_main) {
529 my $time = AE::time;
530
531 # this is the main coro, too bad, we have to block
532 # till the operation succeeds, freezing the server :/
533
534 #LOG llevError, Carp::longmess "sync job";#d#
535
536 my $freeze_guard = freeze_mainloop;
537
538 my $busy = 1;
539 my @res;
540
541 (async {
542 $Coro::current->desc ("sync job coro");
543 @res = eval { $job->() };
544 error $@ if $@;
545 undef $busy;
546 })->prio (Coro::PRIO_MAX);
547
548 while ($busy) {
549 if (Coro::nready) {
550 Coro::cede_notself;
551 } else {
552 EV::loop EV::LOOP_ONESHOT;
553 }
554 }
555
556 my $time = AE::time - $time;
557
558 $TICK_START += $time; # do not account sync jobs to server load
559
560 wantarray ? @res : $res[0]
561 } else {
562 # we are in another coroutine, how wonderful, everything just works
563
564 $job->()
565 }
566}
567
568=item $coro = cf::async_ext { BLOCK }
569
570Like async, but this coro is automatically being canceled when the
571extension calling this is being unloaded.
572
573=cut
574
575sub async_ext(&) {
576 my $cb = shift;
577
578 my $coro = &Coro::async ($cb);
579
580 $coro->on_destroy (sub {
581 delete $EXT_CORO{$coro+0};
582 });
583 $EXT_CORO{$coro+0} = $coro;
584
585 $coro
586}
587
588=item fork_call { }, $args
589
590Executes the given code block with the given arguments in a seperate
591process, returning the results. Everything must be serialisable with
592Coro::Storable. May, of course, block. Note that the executed sub may
593never block itself or use any form of event handling.
594
595=cut
596
597sub post_fork {
598 reset_signals;
599}
600
601sub fork_call(&@) {
602 my ($cb, @args) = @_;
603
604 # we seemingly have to make a local copy of the whole thing,
605 # otherwise perl prematurely frees the stuff :/
606 # TODO: investigate and fix (likely this will be rather laborious)
607
608 my @res = Coro::Util::fork_eval {
609 cf::post_fork;
610 &$cb
611 }, @args;
612
613 wantarray ? @res : $res[-1]
614}
615
616sub objinfo {
617 (
618 "counter value" => cf::object::object_count,
619 "objects created" => cf::object::create_count,
620 "objects destroyed" => cf::object::destroy_count,
621 "freelist size" => cf::object::free_count,
622 "allocated objects" => cf::object::objects_size,
623 "active objects" => cf::object::actives_size,
624 )
625}
626
627=item $coin = coin_from_name $name
628
629=cut
630
631our %coin_alias = (
632 "silver" => "silvercoin",
633 "silvercoin" => "silvercoin",
634 "silvercoins" => "silvercoin",
635 "gold" => "goldcoin",
636 "goldcoin" => "goldcoin",
637 "goldcoins" => "goldcoin",
638 "platinum" => "platinacoin",
639 "platinumcoin" => "platinacoin",
640 "platinumcoins" => "platinacoin",
641 "platina" => "platinacoin",
642 "platinacoin" => "platinacoin",
643 "platinacoins" => "platinacoin",
644 "royalty" => "royalty",
645 "royalties" => "royalty",
646);
647
648sub coin_from_name($) {
649 $coin_alias{$_[0]}
650 ? cf::arch::find $coin_alias{$_[0]}
651 : undef
652}
653
654=item $value = cf::db_get $family => $key
655
656Returns a single value from the environment database.
657
658=item cf::db_put $family => $key => $value
659
660Stores the given C<$value> in the family. It can currently store binary
661data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
662
663=item $db = cf::db_table "name"
664
665Create and/or open a new database table. The string must not be "db" and must be unique
666within each server.
667
668=cut
669
670sub db_table($) {
671 cf::error "db_get called from main context"
672 if $Coro::current == $Coro::main;
673
674 my ($name) = @_;
675 my $db = BDB::db_create $DB_ENV;
676
677 eval {
678 $db->set_flags (BDB::CHKSUM);
679
680 utf8::encode $name;
681 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
682 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
683 cf::cleanup "db_open(db): $!" if $!;
684 };
685 cf::cleanup "db_open(db): $@" if $@;
686
687 $db
688}
689
690our $DB;
691
692sub db_init {
693 $DB ||= db_table "db";
694}
695
696sub db_get($$) {
697 my $key = "$_[0]/$_[1]";
698
699 cf::error "db_get called from main context"
700 if $Coro::current == $Coro::main;
701
702 BDB::db_get $DB, undef, $key, my $data;
703
704 $! ? ()
705 : $data
706}
707
708sub db_put($$$) {
709 BDB::dbreq_pri 4;
710 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
711}
712
713=item cf::cache $id => [$paths...], $processversion => $process
714
715Generic caching function that returns the value of the resource $id,
716caching and regenerating as required.
717
718This function can block.
719
720=cut
721
722sub cache {
723 my ($id, $src, $processversion, $process) = @_;
724
725 my $meta =
726 join "\x00",
727 $processversion,
728 map {
729 aio_stat $_
730 and Carp::croak "$_: $!";
731
732 ($_, (stat _)[7,9])
733 } @$src;
734
735 my $dbmeta = db_get cache => "$id/meta";
736 if ($dbmeta ne $meta) {
737 # changed, we may need to process
738
739 my @data;
740 my $md5;
741
742 for (0 .. $#$src) {
743 0 <= aio_load $src->[$_], $data[$_]
744 or Carp::croak "$src->[$_]: $!";
745 }
746
747 # if processing is expensive, check
748 # checksum first
749 if (1) {
750 $md5 =
751 join "\x00",
752 $processversion,
753 map {
754 cf::cede_to_tick;
755 ($src->[$_], Digest::MD5::md5_hex $data[$_])
756 } 0.. $#$src;
757
758
759 my $dbmd5 = db_get cache => "$id/md5";
760 if ($dbmd5 eq $md5) {
761 db_put cache => "$id/meta", $meta;
762
763 return db_get cache => "$id/data";
764 }
765 }
766
767 my $t1 = Time::HiRes::time;
768 my $data = $process->(\@data);
769 my $t2 = Time::HiRes::time;
770
771 info "cache: '$id' processed in ", $t2 - $t1, "s\n";
772
773 db_put cache => "$id/data", $data;
774 db_put cache => "$id/md5" , $md5;
775 db_put cache => "$id/meta", $meta;
776
777 return $data;
778 }
779
780 db_get cache => "$id/data"
781}
782
783=item cf::datalog type => key => value, ...
784
785Log a datalog packet of the given type with the given key-value pairs.
786
787=cut
788
789sub datalog($@) {
790 my ($type, %kv) = @_;
791 info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
144} 792}
145 793
146=back 794=back
147 795
148=cut 796=cut
149 797
150############################################################################# 798#############################################################################
151 799
152=head2 ATTACHABLE OBJECTS 800=head2 ATTACHABLE OBJECTS
153 801
154Many objects in crossfire are so-called attachable objects. That means you can 802Many objects in deliantra are so-called attachable objects. That means you can
155attach callbacks/event handlers (a collection of which is called an "attachment") 803attach callbacks/event handlers (a collection of which is called an "attachment")
156to it. All such attachable objects support the following methods. 804to it. All such attachable objects support the following methods.
157 805
158In the following description, CLASS can be any of C<global>, C<object> 806In the following description, CLASS can be any of C<global>, C<object>
159C<player>, C<client> or C<map> (i.e. the attachable objects in 807C<player>, C<client> or C<map> (i.e. the attachable objects in
160crossfire+). 808Deliantra).
161 809
162=over 4 810=over 4
163 811
164=item $attachable->attach ($attachment, key => $value...) 812=item $attachable->attach ($attachment, key => $value...)
165 813
… …
209=item cf::CLASS::attachment $name, ... 857=item cf::CLASS::attachment $name, ...
210 858
211Register an attachment by C<$name> through which attachable objects of the 859Register an attachment by C<$name> through which attachable objects of the
212given CLASS can refer to this attachment. 860given CLASS can refer to this attachment.
213 861
214Some classes such as crossfire maps and objects can specify attachments 862Some classes such as deliantra maps and objects can specify attachments
215that are attached at load/instantiate time, thus the need for a name. 863that are attached at load/instantiate time, thus the need for a name.
216 864
217These calls expect any number of the following handler/hook descriptions: 865These calls expect any number of the following handler/hook descriptions:
218 866
219=over 4 867=over 4
… …
269exception. 917exception.
270 918
271=cut 919=cut
272 920
273# the following variables are defined in .xs and must not be re-created 921# the following variables are defined in .xs and must not be re-created
274our @CB_GLOBAL = (); # registry for all global events 922our @CB_GLOBAL = (); # registry for all global events
923our @CB_ATTACHABLE = (); # registry for all attachables
275our @CB_OBJECT = (); # all objects (should not be used except in emergency) 924our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276our @CB_PLAYER = (); 925our @CB_PLAYER = ();
277our @CB_CLIENT = (); 926our @CB_CLIENT = ();
278our @CB_TYPE = (); # registry for type (cf-object class) based events 927our @CB_TYPE = (); # registry for type (cf-object class) based events
279our @CB_MAP = (); 928our @CB_MAP = ();
280 929
281my %attachment; 930my %attachment;
931
932sub cf::attachable::thawer_merge {
933 # simply override everything except _meta
934 local $_[0]{_meta};
935 %{$_[0]} = %{$_[1]};
936}
282 937
283sub _attach_cb($$$$) { 938sub _attach_cb($$$$) {
284 my ($registry, $event, $prio, $cb) = @_; 939 my ($registry, $event, $prio, $cb) = @_;
285 940
286 use sort 'stable'; 941 use sort 'stable';
… …
289 944
290 @{$registry->[$event]} = sort 945 @{$registry->[$event]} = sort
291 { $a->[0] cmp $b->[0] } 946 { $a->[0] cmp $b->[0] }
292 @{$registry->[$event] || []}, $cb; 947 @{$registry->[$event] || []}, $cb;
293} 948}
949
950# hack
951my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294 952
295# attach handles attaching event callbacks 953# attach handles attaching event callbacks
296# the only thing the caller has to do is pass the correct 954# the only thing the caller has to do is pass the correct
297# registry (== where the callback attaches to). 955# registry (== where the callback attaches to).
298sub _attach { 956sub _attach {
… …
300 958
301 my $object_type; 959 my $object_type;
302 my $prio = 0; 960 my $prio = 0;
303 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 961 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304 962
963 #TODO: get rid of this hack
964 if ($attachable_klass{$klass}) {
965 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
966 }
967
305 while (@arg) { 968 while (@arg) {
306 my $type = shift @arg; 969 my $type = shift @arg;
307 970
308 if ($type eq "prio") { 971 if ($type eq "prio") {
309 $prio = shift @arg; 972 $prio = shift @arg;
… …
313 $registry = $CB_TYPE[$object_type] ||= []; 976 $registry = $CB_TYPE[$object_type] ||= [];
314 977
315 } elsif ($type eq "subtype") { 978 } elsif ($type eq "subtype") {
316 defined $object_type or Carp::croak "subtype specified without type"; 979 defined $object_type or Carp::croak "subtype specified without type";
317 my $object_subtype = shift @arg; 980 my $object_subtype = shift @arg;
318 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 981 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
319 982
320 } elsif ($type eq "package") { 983 } elsif ($type eq "package") {
321 my $pkg = shift @arg; 984 my $pkg = shift @arg;
322 985
323 while (my ($name, $id) = each %cb_id) { 986 while (my ($name, $id) = each %cb_id) {
… …
328 991
329 } elsif (exists $cb_id{$type}) { 992 } elsif (exists $cb_id{$type}) {
330 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg; 993 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
331 994
332 } elsif (ref $type) { 995 } elsif (ref $type) {
333 warn "attaching objects not supported, ignoring.\n"; 996 error "attaching objects not supported, ignoring.\n";
334 997
335 } else { 998 } else {
336 shift @arg; 999 shift @arg;
337 warn "attach argument '$type' not supported, ignoring.\n"; 1000 error "attach argument '$type' not supported, ignoring.\n";
338 } 1001 }
339 } 1002 }
340} 1003}
341 1004
342sub _object_attach { 1005sub _object_attach {
… …
352 _attach $registry, $klass, @attach; 1015 _attach $registry, $klass, @attach;
353 } 1016 }
354 1017
355 $obj->{$name} = \%arg; 1018 $obj->{$name} = \%arg;
356 } else { 1019 } else {
357 warn "object uses attachment '$name' that is not available, postponing.\n"; 1020 info "object uses attachment '$name' which is not available, postponing.\n";
358 } 1021 }
359 1022
360 $obj->{_attachment}{$name} = undef; 1023 $obj->{_attachment}{$name} = undef;
361} 1024}
362 1025
… …
364 if (ref $_[0]) { 1027 if (ref $_[0]) {
365 _object_attach @_; 1028 _object_attach @_;
366 } else { 1029 } else {
367 _attach shift->_attach_registry, @_; 1030 _attach shift->_attach_registry, @_;
368 } 1031 }
1032 _recalc_want;
369}; 1033};
370 1034
371# all those should be optimised 1035# all those should be optimised
372sub cf::attachable::detach { 1036sub cf::attachable::detach {
373 my ($obj, $name) = @_; 1037 my ($obj, $name) = @_;
… …
376 delete $obj->{_attachment}{$name}; 1040 delete $obj->{_attachment}{$name};
377 reattach ($obj); 1041 reattach ($obj);
378 } else { 1042 } else {
379 Carp::croak "cannot, currently, detach class attachments"; 1043 Carp::croak "cannot, currently, detach class attachments";
380 } 1044 }
1045 _recalc_want;
381}; 1046};
382 1047
383sub cf::attachable::attached { 1048sub cf::attachable::attached {
384 my ($obj, $name) = @_; 1049 my ($obj, $name) = @_;
385 1050
386 exists $obj->{_attachment}{$name} 1051 exists $obj->{_attachment}{$name}
387} 1052}
388 1053
389for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 1054for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390 eval "#line " . __LINE__ . " 'cf.pm' 1055 eval "#line " . __LINE__ . " 'cf.pm'
391 sub cf::\L$klass\E::_attach_registry { 1056 sub cf::\L$klass\E::_attach_registry {
392 (\\\@CB_$klass, KLASS_$klass) 1057 (\\\@CB_$klass, KLASS_$klass)
393 } 1058 }
394 1059
… …
400 "; 1065 ";
401 die if $@; 1066 die if $@;
402} 1067}
403 1068
404our $override; 1069our $override;
405our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 1070our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
406 1071
407sub override { 1072sub override {
408 $override = 1; 1073 $override = 1;
409 @invoke_results = (); 1074 @INVOKE_RESULTS = (@_);
410} 1075}
411 1076
412sub do_invoke { 1077sub do_invoke {
413 my $event = shift; 1078 my $event = shift;
414 my $callbacks = shift; 1079 my $callbacks = shift;
415 1080
416 @invoke_results = (); 1081 @INVOKE_RESULTS = ();
417 1082
418 local $override; 1083 local $override;
419 1084
420 for (@$callbacks) { 1085 for (@$callbacks) {
421 eval { &{$_->[1]} }; 1086 eval { &{$_->[1]} };
422 1087
423 if ($@) { 1088 if ($@) {
424 warn "$@";
425 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; 1089 error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
426 override; 1090 override;
427 } 1091 }
428 1092
429 return 1 if $override; 1093 return 1 if $override;
430 } 1094 }
431 1095
432 0 1096 0
433} 1097}
434 1098
435=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) 1099=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
436 1100
437=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) 1101=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
438 1102
439Generate an object-specific event with the given arguments. 1103Generate an object-specific event with the given arguments.
440 1104
441This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 1105This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
442removed in future versions), and there is no public API to access override 1106removed in future versions), and there is no public API to access override
443results (if you must, access C<@cf::invoke_results> directly). 1107results (if you must, access C<@cf::INVOKE_RESULTS> directly).
444 1108
445=back 1109=back
446 1110
447=cut 1111=cut
448 1112
449############################################################################# 1113#############################################################################
450# object support 1114# object support
451 1115
452sub instantiate { 1116sub _object_equal($$);
1117sub _object_equal($$) {
1118 my ($a, $b) = @_;
1119
1120 return 0 unless (ref $a) eq (ref $b);
1121
1122 if ("HASH" eq ref $a) {
1123 my @ka = keys %$a;
1124 my @kb = keys %$b;
1125
1126 return 0 if @ka != @kb;
1127
1128 for (0 .. $#ka) {
1129 return 0 unless $ka[$_] eq $kb[$_];
1130 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1131 }
1132
1133 } elsif ("ARRAY" eq ref $a) {
1134
1135 return 0 if @$a != @$b;
1136
1137 for (0 .. $#$a) {
1138 return 0 unless _object_equal $a->[$_], $b->[$_];
1139 }
1140
1141 } elsif ($a ne $b) {
1142 return 0;
1143 }
1144
1145 1
1146}
1147
1148our $SLOW_MERGES;#d#
1149sub _can_merge {
453 my ($obj, $data) = @_; 1150 my ($ob1, $ob2) = @_;
454 1151
455 $data = from_json $data; 1152 ++$SLOW_MERGES;#d#
456 1153
457 for (@$data) { 1154 # we do the slow way here
458 my ($name, $args) = @$_; 1155 return _object_equal $ob1, $ob2
459
460 $obj->attach ($name, %{$args || {} });
461 }
462} 1156}
463 1157
464# basically do the same as instantiate, without calling instantiate
465sub reattach { 1158sub reattach {
1159 # basically do the same as instantiate, without calling instantiate
466 my ($obj) = @_; 1160 my ($obj) = @_;
1161
1162 # no longer needed after getting rid of delete_package?
1163 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1164
467 my $registry = $obj->registry; 1165 my $registry = $obj->registry;
468 1166
469 @$registry = (); 1167 @$registry = ();
470 1168
471 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 1169 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
… …
475 for (@$attach) { 1173 for (@$attach) {
476 my ($klass, @attach) = @$_; 1174 my ($klass, @attach) = @$_;
477 _attach $registry, $klass, @attach; 1175 _attach $registry, $klass, @attach;
478 } 1176 }
479 } else { 1177 } else {
480 warn "object uses attachment '$name' that is not available, postponing.\n"; 1178 info "object uses attachment '$name' that is not available, postponing.\n";
481 }
482 }
483}
484
485sub object_freezer_save {
486 my ($filename, $rdata, $objs) = @_;
487
488 if (length $$rdata) {
489 warn sprintf "saving %s (%d,%d)\n",
490 $filename, length $$rdata, scalar @$objs;
491
492 if (open my $fh, ">:raw", "$filename~") {
493 chmod SAVE_MODE, $fh;
494 syswrite $fh, $$rdata;
495 close $fh;
496
497 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498 chmod SAVE_MODE, $fh;
499 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500 close $fh;
501 rename "$filename.pst~", "$filename.pst";
502 } else {
503 unlink "$filename.pst";
504 } 1179 }
505
506 rename "$filename~", $filename;
507 } else {
508 warn "FATAL: $filename~: $!\n";
509 }
510 } else {
511 unlink $filename;
512 unlink "$filename.pst";
513 } 1180 }
514} 1181}
515 1182
516sub object_freezer_as_string { 1183cf::attachable->attach (
517 my ($rdata, $objs) = @_;
518
519 use Data::Dumper;
520
521 $$rdata . Dumper $objs
522}
523
524sub object_thawer_load {
525 my ($filename) = @_;
526
527 local $/;
528
529 my $av;
530
531 #TODO: use sysread etc.
532 if (open my $data, "<:raw:perlio", $filename) {
533 $data = <$data>;
534 if (open my $pst, "<:raw:perlio", "$filename.pst") {
535 $av = eval { (Storable::thaw <$pst>)->{objs} };
536 }
537 return ($data, $av);
538 }
539
540 ()
541}
542
543cf::object->attach (
544 prio => -1000000, 1184 prio => -1000000,
1185 on_instantiate => sub {
1186 my ($obj, $data) = @_;
1187
1188 $data = decode_json $data;
1189
1190 for (@$data) {
1191 my ($name, $args) = @$_;
1192
1193 $obj->attach ($name, %{$args || {} });
1194 }
1195 },
1196 on_reattach => \&reattach,
545 on_clone => sub { 1197 on_clone => sub {
546 my ($src, $dst) = @_; 1198 my ($src, $dst) = @_;
547 1199
548 @{$dst->registry} = @{$src->registry}; 1200 @{$dst->registry} = @{$src->registry};
549 1201
… …
552 %{$dst->{_attachment}} = %{$src->{_attachment}} 1204 %{$dst->{_attachment}} = %{$src->{_attachment}}
553 if exists $src->{_attachment}; 1205 if exists $src->{_attachment};
554 }, 1206 },
555); 1207);
556 1208
1209sub object_freezer_save {
1210 my ($filename, $rdata, $objs) = @_;
1211
1212 sync_job {
1213 if (length $$rdata) {
1214 utf8::decode (my $decname = $filename);
1215 trace sprintf "saving %s (%d,%d)\n",
1216 $decname, length $$rdata, scalar @$objs
1217 if $VERBOSE_IO;
1218
1219 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1220 aio_chmod $fh, SAVE_MODE;
1221 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1222 if ($cf::USE_FSYNC) {
1223 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1224 aio_fsync $fh;
1225 }
1226 aio_close $fh;
1227
1228 if (@$objs) {
1229 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1230 aio_chmod $fh, SAVE_MODE;
1231 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1232 aio_write $fh, 0, (length $data), $data, 0;
1233 if ($cf::USE_FSYNC) {
1234 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1235 aio_fsync $fh;
1236 }
1237 aio_close $fh;
1238 aio_rename "$filename.pst~", "$filename.pst";
1239 }
1240 } else {
1241 aio_unlink "$filename.pst";
1242 }
1243
1244 aio_rename "$filename~", $filename;
1245
1246 $filename =~ s%/[^/]+$%%;
1247 aio_pathsync $filename if $cf::USE_FSYNC;
1248 } else {
1249 error "unable to save objects: $filename~: $!\n";
1250 }
1251 } else {
1252 aio_unlink $filename;
1253 aio_unlink "$filename.pst";
1254 }
1255 };
1256}
1257
1258sub object_freezer_as_string {
1259 my ($rdata, $objs) = @_;
1260
1261 use Data::Dumper;
1262
1263 $$rdata . Dumper $objs
1264}
1265
1266sub object_thawer_load {
1267 my ($filename) = @_;
1268
1269 my ($data, $av);
1270
1271 (aio_load $filename, $data) >= 0
1272 or return;
1273
1274 unless (aio_stat "$filename.pst") {
1275 (aio_load "$filename.pst", $av) >= 0
1276 or return;
1277
1278 my $st = eval { Coro::Storable::thaw $av };
1279 $av = $st->{objs};
1280 }
1281
1282 utf8::decode (my $decname = $filename);
1283 trace sprintf "loading %s (%d,%d)\n",
1284 $decname, length $data, scalar @{$av || []}
1285 if $VERBOSE_IO;
1286
1287 ($data, $av)
1288}
1289
1290=head2 COMMAND CALLBACKS
1291
1292=over 4
1293
1294=cut
1295
557############################################################################# 1296#############################################################################
558# command handling &c 1297# command handling &c
559 1298
560=item cf::register_command $name => \&callback($ob,$args); 1299=item cf::register_command $name => \&callback($ob,$args);
561 1300
… …
573 push @{ $COMMAND{$name} }, [$caller, $cb]; 1312 push @{ $COMMAND{$name} }, [$caller, $cb];
574} 1313}
575 1314
576=item cf::register_extcmd $name => \&callback($pl,$packet); 1315=item cf::register_extcmd $name => \&callback($pl,$packet);
577 1316
578Register a callbackf ro execution when the client sends an extcmd packet. 1317Register a callback for execution when the client sends an (synchronous)
1318extcmd packet. Ext commands will be processed in the order they are
1319received by the server, like other user commands. The first argument is
1320the logged-in player. Ext commands can only be processed after a player
1321has logged in successfully.
579 1322
580If the callback returns something, it is sent back as if reply was being 1323If the callback returns something, it is sent back as if reply was being
581called. 1324called.
582 1325
1326=item cf::register_exticmd $name => \&callback($ns,$packet);
1327
1328Register a callback for execution when the client sends an (asynchronous)
1329exticmd packet. Exti commands are processed by the server as soon as they
1330are received, i.e. out of order w.r.t. other commands. The first argument
1331is a client socket. Exti commands can be received anytime, even before
1332log-in.
1333
1334If the callback returns something, it is sent back as if reply was being
1335called.
1336
583=cut 1337=cut
584 1338
585sub register_extcmd { 1339sub register_extcmd {
586 my ($name, $cb) = @_; 1340 my ($name, $cb) = @_;
587 1341
588 my $caller = caller;
589 #warn "registering extcmd '$name' to '$caller'";
590
591 $EXTCMD{$name} = [$cb, $caller]; 1342 $EXTCMD{$name} = $cb;
592} 1343}
1344
1345sub register_exticmd {
1346 my ($name, $cb) = @_;
1347
1348 $EXTICMD{$name} = $cb;
1349}
1350
1351use File::Glob ();
593 1352
594cf::player->attach ( 1353cf::player->attach (
595 on_command => sub { 1354 on_unknown_command => sub {
596 my ($pl, $name, $params) = @_; 1355 my ($pl, $name, $params) = @_;
597 1356
598 my $cb = $COMMAND{$name} 1357 my $cb = $COMMAND{$name}
599 or return; 1358 or return;
600 1359
… …
605 cf::override; 1364 cf::override;
606 }, 1365 },
607 on_extcmd => sub { 1366 on_extcmd => sub {
608 my ($pl, $buf) = @_; 1367 my ($pl, $buf) = @_;
609 1368
610 my $msg = eval { from_json $buf }; 1369 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
611 1370
612 if (ref $msg) { 1371 if (ref $msg) {
1372 my ($type, $reply, @payload) =
1373 "ARRAY" eq ref $msg
1374 ? @$msg
1375 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1376
1377 my @reply;
1378
613 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1379 if (my $cb = $EXTCMD{$type}) {
614 if (my %reply = $cb->[0]->($pl, $msg)) { 1380 @reply = $cb->($pl, @payload);
615 $pl->ext_reply ($msg->{msgid}, %reply);
616 }
617 } 1381 }
1382
1383 $pl->ext_reply ($reply, @reply)
1384 if $reply;
1385
618 } else { 1386 } else {
619 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1387 error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
620 } 1388 }
621 1389
622 cf::override; 1390 cf::override;
623 }, 1391 },
624); 1392);
625 1393
626sub register { 1394# "readahead" all extensions
627 my ($base, $pkg) = @_;
628
629 #TODO
630}
631
632sub load_extension { 1395sub cache_extensions {
633 my ($path) = @_; 1396 my $grp = IO::AIO::aio_group;
634 1397
635 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1398 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
636 my $base = $1; 1399 for (grep /\.ext$/, @{$_[0]}) {
637 my $pkg = $1; 1400 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
638 $pkg =~ s/[^[:word:]]/_/g;
639 $pkg = "ext::$pkg";
640
641 warn "loading '$path' into '$pkg'\n";
642
643 open my $fh, "<:utf8", $path
644 or die "$path: $!";
645
646 my $source =
647 "package $pkg; use strict; use utf8;\n"
648 . "#line 1 \"$path\"\n{\n"
649 . (do { local $/; <$fh> })
650 . "\n};\n1";
651
652 eval $source
653 or die $@ ? "$path: $@\n"
654 : "extension disabled.\n";
655
656 push @exts, $pkg;
657 $ext_pkg{$base} = $pkg;
658
659# no strict 'refs';
660# @{"$pkg\::ISA"} = ext::;
661
662 register $base, $pkg;
663}
664
665sub unload_extension {
666 my ($pkg) = @_;
667
668 warn "removing extension $pkg\n";
669
670 # remove hooks
671 #TODO
672# for my $idx (0 .. $#PLUGIN_EVENT) {
673# delete $hook[$idx]{$pkg};
674# }
675
676 # remove commands
677 for my $name (keys %COMMAND) {
678 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
679
680 if (@cb) {
681 $COMMAND{$name} = \@cb;
682 } else {
683 delete $COMMAND{$name};
684 } 1401 }
685 } 1402 };
686 1403
687 # remove extcmds 1404 $grp
688 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
689 delete $EXTCMD{$name};
690 }
691
692 if (my $cb = $pkg->can ("unload")) {
693 eval {
694 $cb->($pkg);
695 1
696 } or warn "$pkg unloaded, but with errors: $@";
697 }
698
699 Symbol::delete_package $pkg;
700} 1405}
701 1406
702sub load_extensions { 1407sub load_extensions {
1408 info "loading extensions...";
1409
1410 cf::sync_job {
1411 my %todo;
1412
703 for my $ext (<$LIBDIR/*.ext>) { 1413 for my $path (<$LIBDIR/*.ext>) {
704 next unless -r $ext; 1414 next unless -r $path;
705 eval { 1415
706 load_extension $ext; 1416 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1417 my $base = $1;
1418 my $pkg = $1;
1419 $pkg =~ s/[^[:word:]]/_/g;
1420 $pkg = "ext::$pkg";
1421
1422 open my $fh, "<:utf8", $path
1423 or die "$path: $!";
1424
1425 my $source = do { local $/; <$fh> };
1426
1427 my %ext = (
1428 path => $path,
1429 base => $base,
1430 pkg => $pkg,
1431 );
1432
1433 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1434 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1435
1436 $ext{source} =
1437 "package $pkg; use common::sense;\n"
1438 . "#line 1 \"$path\"\n{\n"
1439 . $source
1440 . "\n};\n1";
1441
1442 $todo{$base} = \%ext;
1443 }
1444
1445 my $pass = 0;
1446 my %done;
1447 while (%todo) {
1448 my $progress;
1449
1450 ++$pass;
1451
1452 ext:
1453 while (my ($k, $v) = each %todo) {
1454 for (split /,\s*/, $v->{meta}{depends}) {
1455 next ext
1456 unless exists $done{$_};
1457 }
1458
1459 trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1460
1461 my $active = eval $v->{source};
1462
1463 if (length $@) {
1464 error "$v->{path}: $@\n";
1465
1466 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1467 if exists $v->{meta}{mandatory};
1468
1469 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1470 delete $todo{$k};
1471 } else {
1472 $done{$k} = delete $todo{$k};
1473 push @EXTS, $v->{pkg};
1474 $progress = 1;
1475
1476 info "$v->{base}: extension inactive.\n"
1477 unless $active;
1478 }
707 1 1479 }
708 } or warn "$ext not loaded: $@"; 1480
1481 unless ($progress) {
1482 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1483
1484 while (my ($k, $v) = each %todo) {
1485 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1486 if exists $v->{meta}{mandatory};
1487 }
1488 }
1489 }
709 } 1490 };
710} 1491}
711 1492
712############################################################################# 1493#############################################################################
713# load/save/clean perl data associated with a map
714 1494
715*cf::mapsupport::on_clean = sub { 1495=back
1496
1497=head2 CORE EXTENSIONS
1498
1499Functions and methods that extend core deliantra objects.
1500
1501=cut
1502
1503package cf::player;
1504
1505use Coro::AIO;
1506
1507=head3 cf::player
1508
1509=over 4
1510
1511=item cf::player::num_playing
1512
1513Returns the official number of playing players, as per the Crossfire metaserver rules.
1514
1515=cut
1516
1517sub num_playing {
1518 scalar grep
1519 $_->ob->map
1520 && !$_->hidden
1521 && !$_->ob->flag (cf::FLAG_WIZ),
1522 cf::player::list
1523}
1524
1525=item cf::player::find $login
1526
1527Returns the given player object, loading it if necessary (might block).
1528
1529=cut
1530
1531sub playerdir($) {
1532 "$PLAYERDIR/"
1533 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1534}
1535
1536sub path($) {
1537 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1538
1539 (playerdir $login) . "/playerdata"
1540}
1541
1542sub find_active($) {
1543 $cf::PLAYER{$_[0]}
1544 and $cf::PLAYER{$_[0]}->active
1545 and $cf::PLAYER{$_[0]}
1546}
1547
1548sub exists($) {
716 my ($map) = @_; 1549 my ($login) = @_;
717 1550
718 my $path = $map->tmpname; 1551 $cf::PLAYER{$login}
719 defined $path or return; 1552 or !aio_stat path $login
720
721 unlink "$path.pst";
722};
723
724cf::map->attach (prio => -10000, package => cf::mapsupport::);
725
726#############################################################################
727# load/save perl data associated with player->ob objects
728
729sub all_objects(@) {
730 @_, map all_objects ($_->inv), @_
731} 1553}
732 1554
733# TODO: compatibility cruft, remove when no longer needed 1555sub find($) {
1556 return $cf::PLAYER{$_[0]} || do {
1557 my $login = $_[0];
1558
1559 my $guard = cf::lock_acquire "user_find:$login";
1560
1561 $cf::PLAYER{$_[0]} || do {
1562 # rename old playerfiles to new ones
1563 #TODO: remove when no longer required
1564 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1565 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1566 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1567 aio_unlink +(playerdir $login) . "/$login.pl";
1568
1569 my $f = new_from_file cf::object::thawer path $login
1570 or return;
1571
1572 my $pl = cf::player::load_pl $f
1573 or return;
1574
1575 local $cf::PLAYER_LOADING{$login} = $pl;
1576 $f->resolve_delayed_derefs;
1577 $cf::PLAYER{$login} = $pl
1578 }
1579 }
1580}
1581
734cf::player->attach ( 1582cf::player->attach (
735 on_load => sub { 1583 on_load => sub {
736 my ($pl, $path) = @_; 1584 my ($pl, $path) = @_;
737 1585
738 for my $o (all_objects $pl->ob) { 1586 # restore slots saved in save, below
739 if (my $value = $o->get_ob_key_value ("_perl_data")) { 1587 my $slots = delete $pl->{_slots};
740 $o->set_ob_key_value ("_perl_data");
741 1588
742 %$o = %{ Storable::thaw pack "H*", $value }; 1589 $pl->ob->current_weapon ($slots->[0]);
743 } 1590 $pl->combat_ob ($slots->[1]);
744 } 1591 $pl->ranged_ob ($slots->[2]);
745 }, 1592 },
746); 1593);
747 1594
748############################################################################# 1595sub save($) {
1596 my ($pl) = @_;
749 1597
750=head2 CORE EXTENSIONS 1598 return if $pl->{deny_save};
751 1599
752Functions and methods that extend core crossfire objects. 1600 my $path = path $pl;
1601 my $guard = cf::lock_acquire "user_save:$path";
753 1602
754=head3 cf::player 1603 return if $pl->{deny_save};
1604
1605 aio_mkdir playerdir $pl, 0770;
1606 $pl->{last_save} = $cf::RUNTIME;
1607
1608 cf::get_slot 0.01;
1609
1610 # save slots, to be restored later
1611 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1612
1613 $pl->save_pl ($path);
1614 cf::cede_to_tick;
1615}
1616
1617sub new($) {
1618 my ($login) = @_;
1619
1620 my $self = create;
1621
1622 $self->ob->name ($login);
1623 $self->{deny_save} = 1;
1624
1625 $cf::PLAYER{$login} = $self;
1626
1627 $self
1628}
1629
1630=item $player->send_msg ($channel, $msg, $color, [extra...])
1631
1632=cut
1633
1634sub send_msg {
1635 my $ns = shift->ns
1636 or return;
1637 $ns->send_msg (@_);
1638}
1639
1640=item $pl->quit_character
1641
1642Nukes the player without looking back. If logged in, the connection will
1643be destroyed. May block for a long time.
1644
1645=cut
1646
1647sub quit_character {
1648 my ($pl) = @_;
1649
1650 my $name = $pl->ob->name;
1651
1652 $pl->{deny_save} = 1;
1653 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1654
1655 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1656 $pl->deactivate;
1657
1658 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1659 ext::highscore::check ($pl->ob);
1660
1661 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1662 $pl->ns->destroy if $pl->ns;
1663
1664 my $path = playerdir $pl;
1665 my $temp = "$path~$cf::RUNTIME~deleting~";
1666 aio_rename $path, $temp;
1667 delete $cf::PLAYER{$pl->ob->name};
1668 $pl->destroy;
1669
1670 my $prefix = qr<^~\Q$name\E/>;
1671
1672 # nuke player maps
1673 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1674
1675 IO::AIO::aio_rmtree $temp;
1676}
1677
1678=item $pl->kick
1679
1680Kicks a player out of the game. This destroys the connection.
1681
1682=cut
1683
1684sub kick {
1685 my ($pl, $kicker) = @_;
1686
1687 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1688 $pl->killer ("kicked");
1689 $pl->ns->destroy;
1690}
1691
1692=item cf::player::list_logins
1693
1694Returns am arrayref of all valid playernames in the system, can take a
1695while and may block, so not sync_job-capable, ever.
1696
1697=cut
1698
1699sub list_logins {
1700 my $dirs = aio_readdir $PLAYERDIR
1701 or return [];
1702
1703 my @logins;
1704
1705 for my $login (@$dirs) {
1706 my $path = path $login;
1707
1708 # a .pst is a dead give-away for a valid player
1709 # if no pst file found, open and chekc for blocked users
1710 if (aio_stat "$path.pst") {
1711 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1712 aio_read $fh, 0, 512, my $buf, 0 or next;
1713 $buf !~ /^password -------------$/m or next; # official not-valid tag
1714 }
1715
1716 utf8::decode $login;
1717 push @logins, $login;
1718 }
1719
1720 \@logins
1721}
1722
1723=item $player->maps
1724
1725=item cf::player::maps $login
1726
1727Returns an arrayref of map paths that are private for this
1728player. May block.
1729
1730=cut
1731
1732sub maps($) {
1733 my ($pl) = @_;
1734
1735 $pl = ref $pl ? $pl->ob->name : $pl;
1736
1737 my $files = aio_readdir playerdir $pl
1738 or return;
1739
1740 my @paths;
1741
1742 for (@$files) {
1743 utf8::decode $_;
1744 next if /\.(?:pl|pst)$/;
1745 next unless /^$PATH_SEP/o;
1746
1747 push @paths, cf::map::normalise "~$pl/$_";
1748 }
1749
1750 \@paths
1751}
1752
1753=item $protocol_xml = $player->expand_cfpod ($cfpod)
1754
1755Expand deliantra pod fragments into protocol xml.
1756
1757=item $player->ext_reply ($msgid, @msg)
1758
1759Sends an ext reply to the player.
1760
1761=cut
1762
1763sub ext_reply($$@) {
1764 my ($self, $id, @msg) = @_;
1765
1766 $self->ns->ext_reply ($id, @msg)
1767}
1768
1769=item $player->ext_msg ($type, @msg)
1770
1771Sends an ext event to the client.
1772
1773=cut
1774
1775sub ext_msg($$@) {
1776 my ($self, $type, @msg) = @_;
1777
1778 $self->ns->ext_msg ($type, @msg);
1779}
1780
1781=head3 cf::region
755 1782
756=over 4 1783=over 4
757 1784
758=item cf::player::exists $login
759
760Returns true when the given account exists.
761
762=cut 1785=cut
763 1786
764sub cf::player::exists($) { 1787package cf::region;
765 cf::player::find $_[0]
766 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
767}
768 1788
769=item $player->ext_reply ($msgid, $msgtype, %msg) 1789=item cf::region::find_by_path $path
770 1790
771Sends an ext reply to the player. 1791Tries to decuce the likely region for a map knowing only its path.
772 1792
773=cut 1793=cut
774 1794
775sub cf::player::ext_reply($$$%) { 1795sub find_by_path($) {
1796 my ($path) = @_;
1797
1798 $path =~ s/^~[^\/]*//; # skip ~login
1799
1800 my ($match, $specificity);
1801
1802 for my $region (list) {
1803 if ($region->{match} && $path =~ $region->{match}) {
1804 ($match, $specificity) = ($region, $region->specificity)
1805 if $region->specificity > $specificity;
1806 }
1807 }
1808
1809 $match
1810}
1811
1812=back
1813
1814=head3 cf::map
1815
1816=over 4
1817
1818=cut
1819
1820package cf::map;
1821
1822use Fcntl;
1823use Coro::AIO;
1824
1825use overload
1826 '""' => \&as_string,
1827 fallback => 1;
1828
1829our $MAX_RESET = 3600;
1830our $DEFAULT_RESET = 3000;
1831
1832sub generate_random_map {
1833 my ($self, $rmp) = @_;
1834
1835 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1836
1837 # mit "rum" bekleckern, nicht
1838 $self->_create_random_map (
1839 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1840 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1841 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1842 $rmp->{exit_on_final_map},
1843 $rmp->{xsize}, $rmp->{ysize},
1844 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1845 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1846 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1847 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1848 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1849 (cf::region::find $rmp->{region}), $rmp->{custom}
1850 )
1851}
1852
1853=item cf::map->register ($regex, $prio)
1854
1855Register a handler for the map path matching the given regex at the
1856givne priority (higher is better, built-in handlers have priority 0, the
1857default).
1858
1859=cut
1860
1861sub register {
1862 my (undef, $regex, $prio) = @_;
1863 my $pkg = caller;
1864
1865 push @{"$pkg\::ISA"}, __PACKAGE__;
1866
1867 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1868}
1869
1870# also paths starting with '/'
1871$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1872
1873sub thawer_merge {
776 my ($self, $id, %msg) = @_; 1874 my ($self, $merge) = @_;
777 1875
778 $msg{msgid} = $id; 1876 # we have to keep some variables in memory intact
1877 local $self->{path};
1878 local $self->{load_path};
779 1879
780 $self->send ("ext " . to_json \%msg); 1880 $self->SUPER::thawer_merge ($merge);
781} 1881}
1882
1883sub normalise {
1884 my ($path, $base) = @_;
1885
1886 $path = "$path"; # make sure it's a string
1887
1888 $path =~ s/\.map$//;
1889
1890 # map plan:
1891 #
1892 # /! non-realised random map exit (special hack!)
1893 # {... are special paths that are not being touched
1894 # ?xxx/... are special absolute paths
1895 # ?random/... random maps
1896 # /... normal maps
1897 # ~user/... per-player map of a specific user
1898
1899 $path =~ s/$PATH_SEP/\//go;
1900
1901 # treat it as relative path if it starts with
1902 # something that looks reasonable
1903 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1904 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1905
1906 $base =~ s{[^/]+/?$}{};
1907 $path = "$base/$path";
1908 }
1909
1910 for ($path) {
1911 redo if s{//}{/};
1912 redo if s{/\.?/}{/};
1913 redo if s{/[^/]+/\.\./}{/};
1914 }
1915
1916 $path
1917}
1918
1919sub new_from_path {
1920 my (undef, $path, $base) = @_;
1921
1922 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1923
1924 $path = normalise $path, $base;
1925
1926 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1927 if ($path =~ $EXT_MAP{$pkg}[1]) {
1928 my $self = bless cf::map::new, $pkg;
1929 $self->{path} = $path; $self->path ($path);
1930 $self->init; # pass $1 etc.
1931 return $self;
1932 }
1933 }
1934
1935 Carp::cluck "unable to resolve path '$path' (base '$base')";
1936 ()
1937}
1938
1939sub init {
1940 my ($self) = @_;
1941
1942 $self
1943}
1944
1945sub as_string {
1946 my ($self) = @_;
1947
1948 "$self->{path}"
1949}
1950
1951# the displayed name, this is a one way mapping
1952sub visible_name {
1953 &as_string
1954}
1955
1956# the original (read-only) location
1957sub load_path {
1958 my ($self) = @_;
1959
1960 "$MAPDIR/$self->{path}.map"
1961}
1962
1963# the temporary/swap location
1964sub save_path {
1965 my ($self) = @_;
1966
1967 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1968 "$TMPDIR/$path.map"
1969}
1970
1971# the unique path, undef == no special unique path
1972sub uniq_path {
1973 my ($self) = @_;
1974
1975 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1976 "$UNIQUEDIR/$path"
1977}
1978
1979sub decay_objects {
1980 my ($self) = @_;
1981
1982 return if $self->{deny_reset};
1983
1984 $self->do_decay_objects;
1985}
1986
1987sub unlink_save {
1988 my ($self) = @_;
1989
1990 utf8::encode (my $save = $self->save_path);
1991 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1992 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1993}
1994
1995sub load_header_from($) {
1996 my ($self, $path) = @_;
1997
1998 utf8::encode $path;
1999 my $f = new_from_file cf::object::thawer $path
2000 or return;
2001
2002 $self->_load_header ($f)
2003 or return;
2004
2005 local $MAP_LOADING{$self->{path}} = $self;
2006 $f->resolve_delayed_derefs;
2007
2008 $self->{load_path} = $path;
2009
2010 1
2011}
2012
2013sub load_header_orig {
2014 my ($self) = @_;
2015
2016 $self->load_header_from ($self->load_path)
2017}
2018
2019sub load_header_temp {
2020 my ($self) = @_;
2021
2022 $self->load_header_from ($self->save_path)
2023}
2024
2025sub prepare_temp {
2026 my ($self) = @_;
2027
2028 $self->last_access ((delete $self->{last_access})
2029 || $cf::RUNTIME); #d#
2030 # safety
2031 $self->{instantiate_time} = $cf::RUNTIME
2032 if $self->{instantiate_time} > $cf::RUNTIME;
2033}
2034
2035sub prepare_orig {
2036 my ($self) = @_;
2037
2038 $self->{load_original} = 1;
2039 $self->{instantiate_time} = $cf::RUNTIME;
2040 $self->last_access ($cf::RUNTIME);
2041 $self->instantiate;
2042}
2043
2044sub load_header {
2045 my ($self) = @_;
2046
2047 if ($self->load_header_temp) {
2048 $self->prepare_temp;
2049 } else {
2050 $self->load_header_orig
2051 or return;
2052 $self->prepare_orig;
2053 }
2054
2055 $self->{deny_reset} = 1
2056 if $self->no_reset;
2057
2058 $self->default_region (cf::region::find_by_path $self->{path})
2059 unless $self->default_region;
2060
2061 1
2062}
2063
2064sub find;
2065sub find {
2066 my ($path, $origin) = @_;
2067
2068 cf::cede_to_tick;
2069
2070 $path = normalise $path, $origin && $origin->path;
2071
2072 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2073 my $guard2 = cf::lock_acquire "map_find:$path";
2074
2075 $cf::MAP{$path} || do {
2076 my $map = new_from_path cf::map $path
2077 or return;
2078
2079 $map->{last_save} = $cf::RUNTIME;
2080
2081 $map->load_header
2082 or return;
2083
2084 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2085 # doing this can freeze the server in a sync job, obviously
2086 #$cf::WAIT_FOR_TICK->wait;
2087 undef $guard2;
2088 undef $guard1;
2089 $map->reset;
2090 return find $path;
2091 }
2092
2093 $cf::MAP{$path} = $map
2094 }
2095}
2096
2097sub pre_load { }
2098#sub post_load { } # XS
2099
2100sub load {
2101 my ($self) = @_;
2102
2103 local $self->{deny_reset} = 1; # loading can take a long time
2104
2105 my $path = $self->{path};
2106
2107 {
2108 my $guard = cf::lock_acquire "map_data:$path";
2109
2110 return unless $self->valid;
2111 return unless $self->in_memory == cf::MAP_SWAPPED;
2112
2113 $self->in_memory (cf::MAP_LOADING);
2114
2115 $self->alloc;
2116
2117 $self->pre_load;
2118 cf::cede_to_tick;
2119
2120 my $f = new_from_file cf::object::thawer $self->{load_path};
2121 $f->skip_block;
2122 $self->_load_objects ($f)
2123 or return;
2124
2125 $self->post_load_original
2126 if delete $self->{load_original};
2127
2128 if (my $uniq = $self->uniq_path) {
2129 utf8::encode $uniq;
2130 unless (aio_stat $uniq) {
2131 if (my $f = new_from_file cf::object::thawer $uniq) {
2132 $self->clear_unique_items;
2133 $self->_load_objects ($f);
2134 $f->resolve_delayed_derefs;
2135 }
2136 }
2137 }
2138
2139 $f->resolve_delayed_derefs;
2140
2141 cf::cede_to_tick;
2142 # now do the right thing for maps
2143 $self->link_multipart_objects;
2144 $self->difficulty ($self->estimate_difficulty)
2145 unless $self->difficulty;
2146 cf::cede_to_tick;
2147
2148 unless ($self->{deny_activate}) {
2149 $self->decay_objects;
2150 $self->fix_auto_apply;
2151 $self->update_buttons;
2152 cf::cede_to_tick;
2153 $self->activate;
2154 }
2155
2156 $self->{last_save} = $cf::RUNTIME;
2157 $self->last_access ($cf::RUNTIME);
2158
2159 $self->in_memory (cf::MAP_ACTIVE);
2160 }
2161
2162 $self->post_load;
2163}
2164
2165# customize the map for a given player, i.e.
2166# return the _real_ map. used by e.g. per-player
2167# maps to change the path to ~playername/mappath
2168sub customise_for {
2169 my ($self, $ob) = @_;
2170
2171 return find "~" . $ob->name . "/" . $self->{path}
2172 if $self->per_player;
2173
2174# return find "?party/" . $ob->name . "/" . $self->{path}
2175# if $self->per_party;
2176
2177 $self
2178}
2179
2180# find and load all maps in the 3x3 area around a map
2181sub load_neighbours {
2182 my ($map) = @_;
2183
2184 my @neigh; # diagonal neighbours
2185
2186 for (0 .. 3) {
2187 my $neigh = $map->tile_path ($_)
2188 or next;
2189 $neigh = find $neigh, $map
2190 or next;
2191 $neigh->load;
2192
2193 # now find the diagonal neighbours
2194 push @neigh,
2195 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2196 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2197 }
2198
2199 for (grep defined $_->[0], @neigh) {
2200 my ($path, $origin) = @$_;
2201 my $neigh = find $path, $origin
2202 or next;
2203 $neigh->load;
2204 }
2205}
2206
2207sub find_sync {
2208 my ($path, $origin) = @_;
2209
2210 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2211 if $Coro::current == $Coro::main;
2212
2213 find $path, $origin
2214}
2215
2216sub do_load_sync {
2217 my ($map) = @_;
2218
2219 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2220 if $Coro::current == $Coro::main;
2221
2222 $map->load;
2223}
2224
2225our %MAP_PREFETCH;
2226our $MAP_PREFETCHER = undef;
2227
2228sub find_async {
2229 my ($path, $origin, $load) = @_;
2230
2231 $path = normalise $path, $origin && $origin->{path};
2232
2233 if (my $map = $cf::MAP{$path}) {
2234 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2235 }
2236
2237 $MAP_PREFETCH{$path} |= $load;
2238
2239 $MAP_PREFETCHER ||= cf::async {
2240 $Coro::current->{desc} = "map prefetcher";
2241
2242 while (%MAP_PREFETCH) {
2243 while (my ($k, $v) = each %MAP_PREFETCH) {
2244 if (my $map = find $k) {
2245 $map->load if $v;
2246 }
2247
2248 delete $MAP_PREFETCH{$k};
2249 }
2250 }
2251 undef $MAP_PREFETCHER;
2252 };
2253 $MAP_PREFETCHER->prio (6);
2254
2255 ()
2256}
2257
2258# common code, used by both ->save and ->swapout
2259sub _save {
2260 my ($self) = @_;
2261
2262 $self->{last_save} = $cf::RUNTIME;
2263
2264 return unless $self->dirty;
2265
2266 my $save = $self->save_path; utf8::encode $save;
2267 my $uniq = $self->uniq_path; utf8::encode $uniq;
2268
2269 $self->{load_path} = $save;
2270
2271 return if $self->{deny_save};
2272
2273 local $self->{last_access} = $self->last_access;#d#
2274
2275 cf::async {
2276 $Coro::current->{desc} = "map player save";
2277 $_->contr->save for $self->players;
2278 };
2279
2280 cf::get_slot 0.02;
2281
2282 if ($uniq) {
2283 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2284 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2285 } else {
2286 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2287 }
2288}
2289
2290sub save {
2291 my ($self) = @_;
2292
2293 my $lock = cf::lock_acquire "map_data:$self->{path}";
2294
2295 $self->_save;
2296}
2297
2298sub swap_out {
2299 my ($self) = @_;
2300
2301 my $lock = cf::lock_acquire "map_data:$self->{path}";
2302
2303 return if $self->in_memory != cf::MAP_ACTIVE;
2304 return if $self->{deny_save};
2305 return if $self->players;
2306
2307 # first deactivate the map and "unlink" it from the core
2308 $self->deactivate;
2309 $_->clear_links_to ($self) for values %cf::MAP;
2310 $self->in_memory (cf::MAP_SWAPPED);
2311
2312 # then atomically save
2313 $self->_save;
2314
2315 # then free the map
2316 $self->clear;
2317}
2318
2319sub reset_at {
2320 my ($self) = @_;
2321
2322 # TODO: safety, remove and allow resettable per-player maps
2323 return 1e99 if $self->{deny_reset};
2324
2325 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2326 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2327
2328 $time + $to
2329}
2330
2331sub should_reset {
2332 my ($self) = @_;
2333
2334 $self->reset_at <= $cf::RUNTIME
2335}
2336
2337sub reset {
2338 my ($self) = @_;
2339
2340 my $lock = cf::lock_acquire "map_data:$self->{path}";
2341
2342 return if $self->players;
2343
2344 cf::trace "resetting map ", $self->path, "\n";
2345
2346 $self->in_memory (cf::MAP_SWAPPED);
2347
2348 # need to save uniques path
2349 unless ($self->{deny_save}) {
2350 my $uniq = $self->uniq_path; utf8::encode $uniq;
2351
2352 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2353 if $uniq;
2354 }
2355
2356 delete $cf::MAP{$self->path};
2357
2358 $self->deactivate;
2359 $_->clear_links_to ($self) for values %cf::MAP;
2360 $self->clear;
2361
2362 $self->unlink_save;
2363 $self->destroy;
2364}
2365
2366my $nuke_counter = "aaaa";
2367
2368sub nuke {
2369 my ($self) = @_;
2370
2371 {
2372 my $lock = cf::lock_acquire "map_data:$self->{path}";
2373
2374 delete $cf::MAP{$self->path};
2375
2376 $self->unlink_save;
2377
2378 bless $self, "cf::map::wrap";
2379 delete $self->{deny_reset};
2380 $self->{deny_save} = 1;
2381 $self->reset_timeout (1);
2382 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2383
2384 $cf::MAP{$self->path} = $self;
2385 }
2386
2387 $self->reset; # polite request, might not happen
2388}
2389
2390=item $maps = cf::map::tmp_maps
2391
2392Returns an arrayref with all map paths of currently instantiated and saved
2393maps. May block.
2394
2395=cut
2396
2397sub tmp_maps() {
2398 [
2399 map {
2400 utf8::decode $_;
2401 /\.map$/
2402 ? normalise $_
2403 : ()
2404 } @{ aio_readdir $TMPDIR or [] }
2405 ]
2406}
2407
2408=item $maps = cf::map::random_maps
2409
2410Returns an arrayref with all map paths of currently instantiated and saved
2411random maps. May block.
2412
2413=cut
2414
2415sub random_maps() {
2416 [
2417 map {
2418 utf8::decode $_;
2419 /\.map$/
2420 ? normalise "?random/$_"
2421 : ()
2422 } @{ aio_readdir $RANDOMDIR or [] }
2423 ]
2424}
2425
2426=item cf::map::unique_maps
2427
2428Returns an arrayref of paths of all shared maps that have
2429instantiated unique items. May block.
2430
2431=cut
2432
2433sub unique_maps() {
2434 [
2435 map {
2436 utf8::decode $_;
2437 s/\.map$//; # TODO future compatibility hack
2438 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2439 ? ()
2440 : normalise $_
2441 } @{ aio_readdir $UNIQUEDIR or [] }
2442 ]
2443}
2444
2445=item cf::map::static_maps
2446
2447Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2448file in the shared directory excluding F</styles> and F</editor>). May
2449block.
2450
2451=cut
2452
2453sub static_maps() {
2454 my @dirs = "";
2455 my @maps;
2456
2457 while (@dirs) {
2458 my $dir = shift @dirs;
2459
2460 next if $dir eq "/styles" || $dir eq "/editor";
2461
2462 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2463 or return;
2464
2465 for (@$files) {
2466 s/\.map$// or next;
2467 utf8::decode $_;
2468 push @maps, "$dir/$_";
2469 }
2470
2471 push @dirs, map "$dir/$_", @$dirs;
2472 }
2473
2474 \@maps
2475}
2476
2477=back
2478
2479=head3 cf::object
2480
2481=cut
2482
2483package cf::object;
2484
2485=over 4
2486
2487=item $ob->inv_recursive
2488
2489Returns the inventory of the object I<and> their inventories, recursively,
2490but I<not> the object itself.
2491
2492=cut
2493
2494sub inv_recursive_;
2495sub inv_recursive_ {
2496 map { $_, inv_recursive_ $_->inv } @_
2497}
2498
2499sub inv_recursive {
2500 inv_recursive_ inv $_[0]
2501}
2502
2503=item $ref = $ob->ref
2504
2505Creates and returns a persistent reference to an object that can be stored as a string.
2506
2507=item $ob = cf::object::deref ($refstring)
2508
2509returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2510even if the object actually exists. May block.
2511
2512=cut
2513
2514sub deref {
2515 my ($ref) = @_;
2516
2517 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2518 my ($uuid, $name) = ($1, $2);
2519 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2520 or return;
2521 $pl->ob->uuid eq $uuid
2522 or return;
2523
2524 $pl->ob
2525 } else {
2526 warn "$ref: cannot resolve object reference\n";
2527 undef
2528 }
2529}
2530
2531package cf;
782 2532
783=back 2533=back
784 2534
785=head3 cf::object::player 2535=head3 cf::object::player
786 2536
… …
791Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2541Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792can be C<undef>. Does the right thing when the player is currently in a 2542can be C<undef>. Does the right thing when the player is currently in a
793dialogue with the given NPC character. 2543dialogue with the given NPC character.
794 2544
795=cut 2545=cut
2546
2547our $SAY_CHANNEL = {
2548 id => "say",
2549 title => "Map",
2550 reply => "say ",
2551 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2552};
2553
2554our $CHAT_CHANNEL = {
2555 id => "chat",
2556 title => "Chat",
2557 reply => "chat ",
2558 tooltip => "Player chat and shouts, global to the server.",
2559};
796 2560
797# rough implementation of a future "reply" method that works 2561# rough implementation of a future "reply" method that works
798# with dialog boxes. 2562# with dialog boxes.
799#TODO: the first argument must go, split into a $npc->reply_to ( method 2563#TODO: the first argument must go, split into a $npc->reply_to ( method
800sub cf::object::player::reply($$$;$) { 2564sub cf::object::player::reply($$$;$) {
… …
802 2566
803 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2567 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
804 2568
805 if ($self->{record_replies}) { 2569 if ($self->{record_replies}) {
806 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2570 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2571
807 } else { 2572 } else {
2573 my $pl = $self->contr;
2574
2575 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2576 my $dialog = $pl->{npc_dialog};
2577 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2578
2579 } else {
808 $msg = $npc->name . " says: $msg" if $npc; 2580 $msg = $npc->name . " says: $msg" if $npc;
809 $self->message ($msg, $flags); 2581 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2582 }
810 } 2583 }
2584}
2585
2586=item $object->send_msg ($channel, $msg, $color, [extra...])
2587
2588=cut
2589
2590sub cf::object::send_msg {
2591 my $pl = shift->contr
2592 or return;
2593 $pl->send_msg (@_);
811} 2594}
812 2595
813=item $player_object->may ("access") 2596=item $player_object->may ("access")
814 2597
815Returns wether the given player is authorized to access resource "access" 2598Returns wether the given player is authorized to access resource "access"
… …
824 (ref $cf::CFG{"may_$access"} 2607 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 2608 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 2609 : $cf::CFG{"may_$access"})
827} 2610}
828 2611
2612=item $player_object->enter_link
2613
2614Freezes the player and moves him/her to a special map (C<{link}>).
2615
2616The player should be reasonably safe there for short amounts of time (e.g.
2617for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2618though, as the player cannot control the character while it is on the link
2619map.
2620
2621Will never block.
2622
2623=item $player_object->leave_link ($map, $x, $y)
2624
2625Moves the player out of the special C<{link}> map onto the specified
2626map. If the map is not valid (or omitted), the player will be moved back
2627to the location he/she was before the call to C<enter_link>, or, if that
2628fails, to the emergency map position.
2629
2630Might block.
2631
2632=cut
2633
2634sub link_map {
2635 unless ($LINK_MAP) {
2636 $LINK_MAP = cf::map::find "{link}"
2637 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2638 $LINK_MAP->load;
2639 }
2640
2641 $LINK_MAP
2642}
2643
2644sub cf::object::player::enter_link {
2645 my ($self) = @_;
2646
2647 $self->deactivate_recursive;
2648
2649 ++$self->{_link_recursion};
2650
2651 return if UNIVERSAL::isa $self->map, "ext::map_link";
2652
2653 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2654 if $self->map && $self->map->{path} ne "{link}";
2655
2656 $self->enter_map ($LINK_MAP || link_map, 3, 3);
2657}
2658
2659sub cf::object::player::leave_link {
2660 my ($self, $map, $x, $y) = @_;
2661
2662 return unless $self->contr->active;
2663
2664 my $link_pos = delete $self->{_link_pos};
2665
2666 unless ($map) {
2667 # restore original map position
2668 ($map, $x, $y) = @{ $link_pos || [] };
2669 $map = cf::map::find $map;
2670
2671 unless ($map) {
2672 ($map, $x, $y) = @$EMERGENCY_POSITION;
2673 $map = cf::map::find $map
2674 or die "FATAL: cannot load emergency map\n";
2675 }
2676 }
2677
2678 ($x, $y) = (-1, -1)
2679 unless (defined $x) && (defined $y);
2680
2681 # use -1 or undef as default coordinates, not 0, 0
2682 ($x, $y) = ($map->enter_x, $map->enter_y)
2683 if $x <= 0 && $y <= 0;
2684
2685 $map->load;
2686 $map->load_neighbours;
2687
2688 return unless $self->contr->active;
2689
2690 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2691 if ($self->enter_map ($map, $x, $y)) {
2692 # entering was successful
2693 delete $self->{_link_recursion};
2694 # only activate afterwards, to support waiting in hooks
2695 $self->activate_recursive;
2696 }
2697
2698}
2699
2700=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2701
2702Moves the player to the given map-path and coordinates by first freezing
2703her, loading and preparing them map, calling the provided $check callback
2704that has to return the map if sucecssful, and then unfreezes the player on
2705the new (success) or old (failed) map position. In either case, $done will
2706be called at the end of this process.
2707
2708Note that $check will be called with a potentially non-loaded map, so if
2709it needs a loaded map it has to call C<< ->load >>.
2710
2711=cut
2712
2713our $GOTOGEN;
2714
2715sub cf::object::player::goto {
2716 my ($self, $path, $x, $y, $check, $done) = @_;
2717
2718 if ($self->{_link_recursion} >= $MAX_LINKS) {
2719 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2720 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2721 ($path, $x, $y) = @$EMERGENCY_POSITION;
2722 }
2723
2724 # do generation counting so two concurrent goto's will be executed in-order
2725 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2726
2727 $self->enter_link;
2728
2729 (async {
2730 $Coro::current->{desc} = "player::goto $path $x $y";
2731
2732 # *tag paths override both path and x|y
2733 if ($path =~ /^\*(.*)$/) {
2734 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2735 my $ob = $obs[rand @obs];
2736
2737 # see if we actually can go there
2738 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2739 $ob = $obs[rand @obs];
2740 } else {
2741 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2742 }
2743 # else put us there anyways for now #d#
2744
2745 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2746 } else {
2747 ($path, $x, $y) = (undef, undef, undef);
2748 }
2749 }
2750
2751 my $map = eval {
2752 my $map = defined $path ? cf::map::find $path : undef;
2753
2754 if ($map) {
2755 $map = $map->customise_for ($self);
2756 $map = $check->($map, $x, $y, $self) if $check && $map;
2757 } else {
2758 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2759 }
2760
2761 $map
2762 };
2763
2764 if ($@) {
2765 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2766 LOG llevError | logBacktrace, Carp::longmess $@;
2767 }
2768
2769 if ($gen == $self->{_goto_generation}) {
2770 delete $self->{_goto_generation};
2771 $self->leave_link ($map, $x, $y);
2772 }
2773
2774 $done->($self) if $done;
2775 })->prio (1);
2776}
2777
2778=item $player_object->enter_exit ($exit_object)
2779
2780=cut
2781
2782sub parse_random_map_params {
2783 my ($spec) = @_;
2784
2785 my $rmp = { # defaults
2786 xsize => (cf::rndm 15, 40),
2787 ysize => (cf::rndm 15, 40),
2788 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2789 #layout => string,
2790 };
2791
2792 for (split /\n/, $spec) {
2793 my ($k, $v) = split /\s+/, $_, 2;
2794
2795 $rmp->{lc $k} = $v if (length $k) && (length $v);
2796 }
2797
2798 $rmp
2799}
2800
2801sub prepare_random_map {
2802 my ($exit) = @_;
2803
2804 # all this does is basically replace the /! path by
2805 # a new random map path (?random/...) with a seed
2806 # that depends on the exit object
2807
2808 my $rmp = parse_random_map_params $exit->msg;
2809
2810 if ($exit->map) {
2811 $rmp->{region} = $exit->region->name;
2812 $rmp->{origin_map} = $exit->map->path;
2813 $rmp->{origin_x} = $exit->x;
2814 $rmp->{origin_y} = $exit->y;
2815
2816 $exit->map->touch;
2817 }
2818
2819 $rmp->{random_seed} ||= $exit->random_seed;
2820
2821 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2822 my $md5 = Digest::MD5::md5_hex $data;
2823 my $meta = "$RANDOMDIR/$md5.meta";
2824
2825 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2826 aio_write $fh, 0, (length $data), $data, 0;
2827 undef $fh;
2828 aio_rename "$meta~", $meta;
2829
2830 my $slaying = "?random/$md5";
2831
2832 if ($exit->valid) {
2833 $exit->slaying ("?random/$md5");
2834 $exit->msg (undef);
2835 }
2836 }
2837}
2838
2839sub cf::object::player::enter_exit {
2840 my ($self, $exit) = @_;
2841
2842 return unless $self->type == cf::PLAYER;
2843
2844 $self->enter_link;
2845
2846 (async {
2847 $Coro::current->{desc} = "enter_exit";
2848
2849 unless (eval {
2850 $self->deactivate_recursive; # just to be sure
2851
2852 # random map handling
2853 {
2854 my $guard = cf::lock_acquire "exit_prepare:$exit";
2855
2856 prepare_random_map $exit
2857 if $exit->slaying eq "/!";
2858 }
2859
2860 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2861 my $x = $exit->stats->hp;
2862 my $y = $exit->stats->sp;
2863
2864 $self->goto ($map, $x, $y);
2865
2866 # if exit is damned, update players death & WoR home-position
2867 $self->contr->savebed ($map, $x, $y)
2868 if $exit->flag (cf::FLAG_DAMNED);
2869
2870 1
2871 }) {
2872 $self->message ("Something went wrong deep within the deliantra server. "
2873 . "I'll try to bring you back to the map you were before. "
2874 . "Please report this to the dungeon master!",
2875 cf::NDI_UNIQUE | cf::NDI_RED);
2876
2877 error "ERROR in enter_exit: $@";
2878 $self->leave_link;
2879 }
2880 })->prio (1);
2881}
2882
829=head3 cf::client 2883=head3 cf::client
830 2884
831=over 4 2885=over 4
832 2886
833=item $client->send_drawinfo ($text, $flags) 2887=item $client->send_drawinfo ($text, $flags)
… …
839 2893
840sub cf::client::send_drawinfo { 2894sub cf::client::send_drawinfo {
841 my ($self, $text, $flags) = @_; 2895 my ($self, $text, $flags) = @_;
842 2896
843 utf8::encode $text; 2897 utf8::encode $text;
844 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2898 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845} 2899}
846 2900
2901=item $client->send_big_packet ($pkt)
2902
2903Like C<send_packet>, but tries to compress large packets, and fragments
2904them as required.
2905
2906=cut
2907
2908our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2909
2910sub cf::client::send_big_packet {
2911 my ($self, $pkt) = @_;
2912
2913 # try lzf for large packets
2914 $pkt = "lzf " . Compress::LZF::compress $pkt
2915 if 1024 <= length $pkt and $self->{can_lzf};
2916
2917 # split very large packets
2918 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2919 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2920 $pkt = "frag";
2921 }
2922
2923 $self->send_packet ($pkt);
2924}
2925
2926=item $client->send_msg ($channel, $msg, $color, [extra...])
2927
2928Send a drawinfo or msg packet to the client, formatting the msg for the
2929client if neccessary. C<$type> should be a string identifying the type of
2930the message, with C<log> being the default. If C<$color> is negative, suppress
2931the message unless the client supports the msg packet.
2932
2933=cut
2934
2935# non-persistent channels (usually the info channel)
2936our %CHANNEL = (
2937 "c/motd" => {
2938 id => "infobox",
2939 title => "MOTD",
2940 reply => undef,
2941 tooltip => "The message of the day",
2942 },
2943 "c/identify" => {
2944 id => "infobox",
2945 title => "Identify",
2946 reply => undef,
2947 tooltip => "Items recently identified",
2948 },
2949 "c/examine" => {
2950 id => "infobox",
2951 title => "Examine",
2952 reply => undef,
2953 tooltip => "Signs and other items you examined",
2954 },
2955 "c/shopinfo" => {
2956 id => "infobox",
2957 title => "Shop Info",
2958 reply => undef,
2959 tooltip => "What your bargaining skill tells you about the shop",
2960 },
2961 "c/book" => {
2962 id => "infobox",
2963 title => "Book",
2964 reply => undef,
2965 tooltip => "The contents of a note or book",
2966 },
2967 "c/lookat" => {
2968 id => "infobox",
2969 title => "Look",
2970 reply => undef,
2971 tooltip => "What you saw there",
2972 },
2973 "c/who" => {
2974 id => "infobox",
2975 title => "Players",
2976 reply => undef,
2977 tooltip => "Shows players who are currently online",
2978 },
2979 "c/body" => {
2980 id => "infobox",
2981 title => "Body Parts",
2982 reply => undef,
2983 tooltip => "Shows which body parts you posess and are available",
2984 },
2985 "c/statistics" => {
2986 id => "infobox",
2987 title => "Statistics",
2988 reply => undef,
2989 tooltip => "Shows your primary statistics",
2990 },
2991 "c/skills" => {
2992 id => "infobox",
2993 title => "Skills",
2994 reply => undef,
2995 tooltip => "Shows your experience per skill and item power",
2996 },
2997 "c/shopitems" => {
2998 id => "infobox",
2999 title => "Shop Items",
3000 reply => undef,
3001 tooltip => "Shows the items currently for sale in this shop",
3002 },
3003 "c/resistances" => {
3004 id => "infobox",
3005 title => "Resistances",
3006 reply => undef,
3007 tooltip => "Shows your resistances",
3008 },
3009 "c/pets" => {
3010 id => "infobox",
3011 title => "Pets",
3012 reply => undef,
3013 tooltip => "Shows information abotu your pets/a specific pet",
3014 },
3015 "c/perceiveself" => {
3016 id => "infobox",
3017 title => "Perceive Self",
3018 reply => undef,
3019 tooltip => "You gained detailed knowledge about yourself",
3020 },
3021 "c/uptime" => {
3022 id => "infobox",
3023 title => "Uptime",
3024 reply => undef,
3025 tooltip => "How long the server has been running since last restart",
3026 },
3027 "c/mapinfo" => {
3028 id => "infobox",
3029 title => "Map Info",
3030 reply => undef,
3031 tooltip => "Information related to the maps",
3032 },
3033 "c/party" => {
3034 id => "party",
3035 title => "Party",
3036 reply => "gsay ",
3037 tooltip => "Messages and chat related to your party",
3038 },
3039 "c/death" => {
3040 id => "death",
3041 title => "Death",
3042 reply => undef,
3043 tooltip => "Reason for and more info about your most recent death",
3044 },
3045 "c/say" => $SAY_CHANNEL,
3046 "c/chat" => $CHAT_CHANNEL,
3047);
3048
3049sub cf::client::send_msg {
3050 my ($self, $channel, $msg, $color, @extra) = @_;
3051
3052 $msg = $self->pl->expand_cfpod ($msg)
3053 unless $color & cf::NDI_VERBATIM;
3054
3055 $color &= cf::NDI_CLIENT_MASK; # just in case...
3056
3057 # check predefined channels, for the benefit of C
3058 if ($CHANNEL{$channel}) {
3059 $channel = $CHANNEL{$channel};
3060
3061 $self->ext_msg (channel_info => $channel);
3062 $channel = $channel->{id};
3063
3064 } elsif (ref $channel) {
3065 # send meta info to client, if not yet sent
3066 unless (exists $self->{channel}{$channel->{id}}) {
3067 $self->{channel}{$channel->{id}} = $channel;
3068 $self->ext_msg (channel_info => $channel);
3069 }
3070
3071 $channel = $channel->{id};
3072 }
3073
3074 return unless @extra || length $msg;
3075
3076 # default colour, mask it out
3077 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3078 if $color & cf::NDI_DEF;
3079
3080 my $pkt = "msg "
3081 . $self->{json_coder}->encode (
3082 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3083 );
3084
3085 $self->send_big_packet ($pkt);
3086}
3087
3088=item $client->ext_msg ($type, @msg)
3089
3090Sends an ext event to the client.
3091
3092=cut
3093
3094sub cf::client::ext_msg($$@) {
3095 my ($self, $type, @msg) = @_;
3096
3097 if ($self->extcmd == 2) {
3098 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3099 } elsif ($self->extcmd == 1) { # TODO: remove
3100 push @msg, msgtype => "event_$type";
3101 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3102 }
3103}
3104
3105=item $client->ext_reply ($msgid, @msg)
3106
3107Sends an ext reply to the client.
3108
3109=cut
3110
3111sub cf::client::ext_reply($$@) {
3112 my ($self, $id, @msg) = @_;
3113
3114 if ($self->extcmd == 2) {
3115 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
3116 } elsif ($self->extcmd == 1) {
3117 #TODO: version 1, remove
3118 unshift @msg, msgtype => "reply", msgid => $id;
3119 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3120 }
3121}
847 3122
848=item $success = $client->query ($flags, "text", \&cb) 3123=item $success = $client->query ($flags, "text", \&cb)
849 3124
850Queues a query to the client, calling the given callback with 3125Queues a query to the client, calling the given callback with
851the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 3126the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
852C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 3127C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
853 3128
854Queries can fail, so check the return code. Or don't, as queries will become 3129Queries can fail, so check the return code. Or don't, as queries will
855reliable at some point in the future. 3130become reliable at some point in the future.
856 3131
857=cut 3132=cut
858 3133
859sub cf::client::query { 3134sub cf::client::query {
860 my ($self, $flags, $text, $cb) = @_; 3135 my ($self, $flags, $text, $cb) = @_;
… …
868 utf8::encode $text; 3143 utf8::encode $text;
869 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 3144 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
870 3145
871 $self->send_packet ($self->{query_queue}[0][0]) 3146 $self->send_packet ($self->{query_queue}[0][0])
872 if @{ $self->{query_queue} } == 1; 3147 if @{ $self->{query_queue} } == 1;
3148
3149 1
873} 3150}
874 3151
875cf::client->attach ( 3152cf::client->attach (
3153 on_connect => sub {
3154 my ($ns) = @_;
3155
3156 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3157 },
876 on_reply => sub { 3158 on_reply => sub {
877 my ($ns, $msg) = @_; 3159 my ($ns, $msg) = @_;
878 3160
879 # this weird shuffling is so that direct followup queries 3161 # this weird shuffling is so that direct followup queries
880 # get handled first 3162 # get handled first
881 my $queue = delete $ns->{query_queue}; 3163 my $queue = delete $ns->{query_queue}
3164 or return; # be conservative, not sure how that can happen, but we saw a crash here
882 3165
883 (shift @$queue)->[1]->($msg); 3166 (shift @$queue)->[1]->($msg);
3167 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884 3168
885 push @{ $ns->{query_queue} }, @$queue; 3169 push @{ $ns->{query_queue} }, @$queue;
886 3170
887 if (@{ $ns->{query_queue} } == @$queue) { 3171 if (@{ $ns->{query_queue} } == @$queue) {
888 if (@$queue) { 3172 if (@$queue) {
889 $ns->send_packet ($ns->{query_queue}[0][0]); 3173 $ns->send_packet ($ns->{query_queue}[0][0]);
890 } else { 3174 } else {
891 $ns->state (ST_PLAYING); 3175 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892 } 3176 }
893 } 3177 }
3178 },
3179 on_exticmd => sub {
3180 my ($ns, $buf) = @_;
3181
3182 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3183
3184 if (ref $msg) {
3185 my ($type, $reply, @payload) =
3186 "ARRAY" eq ref $msg
3187 ? @$msg
3188 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3189
3190 my @reply;
3191
3192 if (my $cb = $EXTICMD{$type}) {
3193 @reply = $cb->($ns, @payload);
3194 }
3195
3196 $ns->ext_reply ($reply, @reply)
3197 if $reply;
3198
3199 } else {
3200 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3201 }
3202
3203 cf::override;
894 }, 3204 },
895); 3205);
896 3206
897=item $client->coro (\&cb) 3207=item $client->async (\&cb)
898 3208
899Create a new coroutine, running the specified callback. The coroutine will 3209Create a new coroutine, running the specified callback. The coroutine will
900be automatically cancelled when the client gets destroyed (e.g. on logout, 3210be automatically cancelled when the client gets destroyed (e.g. on logout,
901or loss of connection). 3211or loss of connection).
902 3212
903=cut 3213=cut
904 3214
905sub cf::client::coro { 3215sub cf::client::async {
906 my ($self, $cb) = @_; 3216 my ($self, $cb) = @_;
907 3217
908 my $coro; $coro = async { 3218 my $coro = &Coro::async ($cb);
909 eval { 3219
910 $cb->(); 3220 $coro->on_destroy (sub {
911 };
912 warn $@ if $@;
913 delete $self->{_coro}{$coro+0}; 3221 delete $self->{_coro}{$coro+0};
914 }; 3222 });
915 3223
916 $self->{_coro}{$coro+0} = $coro; 3224 $self->{_coro}{$coro+0} = $coro;
3225
3226 $coro
917} 3227}
918 3228
919cf::client->attach ( 3229cf::client->attach (
920 on_destroy => sub { 3230 on_client_destroy => sub {
921 my ($ns) = @_; 3231 my ($ns) = @_;
922 3232
923 $_->cancel for values %{ (delete $ns->{_coro}) || {} }; 3233 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
924 }, 3234 },
925); 3235);
… …
940our $safe = new Safe "safe"; 3250our $safe = new Safe "safe";
941our $safe_hole = new Safe::Hole; 3251our $safe_hole = new Safe::Hole;
942 3252
943$SIG{FPE} = 'IGNORE'; 3253$SIG{FPE} = 'IGNORE';
944 3254
945$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3255$safe->permit_only (Opcode::opset qw(
3256 :base_core :base_mem :base_orig :base_math :base_loop
3257 grepstart grepwhile mapstart mapwhile
3258 sort time
3259));
946 3260
947# here we export the classes and methods available to script code 3261# here we export the classes and methods available to script code
948 3262
949=pod 3263=pod
950 3264
951The following fucntions and emthods are available within a safe environment: 3265The following functions and methods are available within a safe environment:
952 3266
953 cf::object contr pay_amount pay_player map 3267 cf::object
3268 contr pay_amount pay_player map x y force_find force_add destroy
3269 insert remove name archname title slaying race decrease split
3270 value
3271
954 cf::object::player player 3272 cf::object::player
955 cf::player peaceful 3273 player
956 cf::map trigger 3274
3275 cf::player
3276 peaceful
3277
3278 cf::map
3279 trigger
957 3280
958=cut 3281=cut
959 3282
960for ( 3283for (
961 ["cf::object" => qw(contr pay_amount pay_player map)], 3284 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3285 insert remove inv nrof name archname title slaying race
3286 decrease split destroy change_exp value msg lore send_msg)],
962 ["cf::object::player" => qw(player)], 3287 ["cf::object::player" => qw(player)],
963 ["cf::player" => qw(peaceful)], 3288 ["cf::player" => qw(peaceful send_msg)],
964 ["cf::map" => qw(trigger)], 3289 ["cf::map" => qw(trigger)],
965) { 3290) {
966 no strict 'refs';
967 my ($pkg, @funs) = @$_; 3291 my ($pkg, @funs) = @$_;
968 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3292 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
969 for @funs; 3293 for @funs;
970} 3294}
971 3295
… …
986 3310
987 my $qcode = $code; 3311 my $qcode = $code;
988 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3312 $qcode =~ s/"/‟/g; # not allowed in #line filenames
989 $qcode =~ s/\n/\\n/g; 3313 $qcode =~ s/\n/\\n/g;
990 3314
3315 %vars = (_dummy => 0) unless %vars;
3316
3317 my @res;
991 local $_; 3318 local $_;
992 local @safe::cf::_safe_eval_args = values %vars;
993 3319
994 my $eval = 3320 my $eval =
995 "do {\n" 3321 "do {\n"
996 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3322 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
997 . "#line 0 \"{$qcode}\"\n" 3323 . "#line 0 \"{$qcode}\"\n"
998 . $code 3324 . $code
999 . "\n}" 3325 . "\n}"
1000 ; 3326 ;
1001 3327
3328 if ($CFG{safe_eval}) {
1002 sub_generation_inc; 3329 sub_generation_inc;
3330 local @safe::cf::_safe_eval_args = values %vars;
1003 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3331 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1004 sub_generation_inc; 3332 sub_generation_inc;
3333 } else {
3334 local @cf::_safe_eval_args = values %vars;
3335 @res = wantarray ? eval eval : scalar eval $eval;
3336 }
1005 3337
1006 if ($@) { 3338 if ($@) {
1007 warn "$@"; 3339 warn "$@",
1008 warn "while executing safe code '$code'\n"; 3340 "while executing safe code '$code'\n",
1009 warn "with arguments " . (join " ", %vars) . "\n"; 3341 "with arguments " . (join " ", %vars) . "\n";
1010 } 3342 }
1011 3343
1012 wantarray ? @res : $res[0] 3344 wantarray ? @res : $res[0]
1013} 3345}
1014 3346
… …
1028=cut 3360=cut
1029 3361
1030sub register_script_function { 3362sub register_script_function {
1031 my ($fun, $cb) = @_; 3363 my ($fun, $cb) = @_;
1032 3364
1033 no strict 'refs'; 3365 $fun = "safe::$fun" if $CFG{safe_eval};
1034 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3366 *$fun = $safe_hole->wrap ($cb);
1035} 3367}
1036 3368
1037=back 3369=back
1038 3370
1039=cut 3371=cut
1040 3372
1041############################################################################# 3373#############################################################################
3374# the server's init and main functions
1042 3375
1043=head2 EXTENSION DATABASE SUPPORT 3376sub load_facedata($) {
3377 my ($path) = @_;
1044 3378
1045Crossfire maintains a very simple database for extension use. It can 3379 # HACK to clear player env face cache, we need some signal framework
1046currently store anything that can be serialised using Storable, which 3380 # for this (global event?)
1047excludes objects. 3381 %ext::player_env::MUSIC_FACE_CACHE = ();
1048 3382
1049The parameter C<$family> should best start with the name of the extension 3383 my $enc = JSON::XS->new->utf8->canonical->relaxed;
1050using it, it should be unique.
1051 3384
1052=over 4 3385 trace "loading facedata from $path\n";
1053 3386
1054=item $hashref = cf::db_get $family 3387 0 < aio_load $path, my $facedata
3388 or die "$path: $!";
1055 3389
1056Return a hashref for use by the extension C<$family>, which can be 3390 $facedata = Coro::Storable::thaw $facedata;
1057modified. After modifications, you have to call C<cf::db_dirty> or
1058C<cf::db_sync>.
1059 3391
1060=item $value = cf::db_get $family => $key 3392 $facedata->{version} == 2
3393 or cf::cleanup "$path: version mismatch, cannot proceed.";
1061 3394
1062Returns a single value from the database 3395 # patch in the exptable
3396 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3397 $facedata->{resource}{"res/exp_table"} = {
3398 type => FT_RSRC,
3399 data => $exp_table,
3400 hash => (Digest::MD5::md5 $exp_table),
3401 };
3402 cf::cede_to_tick;
1063 3403
1064=item cf::db_put $family => $hashref 3404 {
3405 my $faces = $facedata->{faceinfo};
1065 3406
1066Stores the given family hashref into the database. Updates are delayed, if 3407 while (my ($face, $info) = each %$faces) {
1067you want the data to be synced to disk immediately, use C<cf::db_sync>. 3408 my $idx = (cf::face::find $face) || cf::face::alloc $face;
1068 3409
1069=item cf::db_put $family => $key => $value 3410 cf::face::set_visibility $idx, $info->{visibility};
3411 cf::face::set_magicmap $idx, $info->{magicmap};
3412 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3413 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1070 3414
1071Stores the given C<$value> in the family hash. Updates are delayed, if you 3415 cf::cede_to_tick;
1072want the data to be synced to disk immediately, use C<cf::db_sync>. 3416 }
1073 3417
1074=item cf::db_dirty 3418 while (my ($face, $info) = each %$faces) {
3419 next unless $info->{smooth};
1075 3420
1076Marks the database as dirty, to be updated at a later time. 3421 my $idx = cf::face::find $face
3422 or next;
1077 3423
1078=item cf::db_sync 3424 if (my $smooth = cf::face::find $info->{smooth}) {
3425 cf::face::set_smooth $idx, $smooth;
3426 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3427 } else {
3428 error "smooth face '$info->{smooth}' not found for face '$face'";
3429 }
1079 3430
1080Immediately write the database to disk I<if it is dirty>. 3431 cf::cede_to_tick;
3432 }
3433 }
1081 3434
1082=cut 3435 {
3436 my $anims = $facedata->{animinfo};
1083 3437
1084our $DB; 3438 while (my ($anim, $info) = each %$anims) {
3439 cf::anim::set $anim, $info->{frames}, $info->{facings};
3440 cf::cede_to_tick;
3441 }
3442
3443 cf::anim::invalidate_all; # d'oh
3444 }
3445
3446 {
3447 my $res = $facedata->{resource};
3448
3449 while (my ($name, $info) = each %$res) {
3450 if (defined $info->{type}) {
3451 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3452
3453 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3454 cf::face::set_type $idx, $info->{type};
3455 } else {
3456 $RESOURCE{$name} = $info; # unused
3457 }
3458
3459 cf::cede_to_tick;
3460 }
3461 }
3462
3463 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3464
3465 1
3466}
3467
3468register_exticmd fx_want => sub {
3469 my ($ns, $want) = @_;
3470
3471 while (my ($k, $v) = each %$want) {
3472 $ns->fx_want ($k, $v);
3473 }
3474};
3475
3476sub load_resource_file($) {
3477 my $guard = lock_acquire "load_resource_file";
3478
3479 my $status = load_resource_file_ $_[0];
3480 get_slot 0.1, 100;
3481 cf::arch::commit_load;
3482
3483 $status
3484}
3485
3486sub reload_regions {
3487 # HACK to clear player env face cache, we need some signal framework
3488 # for this (global event?)
3489 %ext::player_env::MUSIC_FACE_CACHE = ();
3490
3491 load_resource_file "$MAPDIR/regions"
3492 or die "unable to load regions file\n";
3493
3494 for (cf::region::list) {
3495 $_->{match} = qr/$_->{match}/
3496 if exists $_->{match};
3497 }
3498}
3499
3500sub reload_facedata {
3501 load_facedata "$DATADIR/facedata"
3502 or die "unable to load facedata\n";
3503}
3504
3505sub reload_archetypes {
3506 load_resource_file "$DATADIR/archetypes"
3507 or die "unable to load archetypes\n";
3508}
3509
3510sub reload_treasures {
3511 load_resource_file "$DATADIR/treasures"
3512 or die "unable to load treasurelists\n";
3513}
3514
3515sub reload_sound {
3516 trace "loading sound config from $DATADIR/sound\n";
3517
3518 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3519 or die "$DATADIR/sound $!";
3520
3521 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3522
3523 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3524 my $sound = $soundconf->{compat}[$_]
3525 or next;
3526
3527 my $face = cf::face::find "sound/$sound->[1]";
3528 cf::sound::set $sound->[0] => $face;
3529 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3530 }
3531
3532 while (my ($k, $v) = each %{$soundconf->{event}}) {
3533 my $face = cf::face::find "sound/$v";
3534 cf::sound::set $k => $face;
3535 }
3536}
3537
3538sub reload_resources {
3539 trace "reloading resource files...\n";
3540
3541 reload_exp_table;
3542 reload_materials;
3543 reload_facedata;
3544 reload_sound;
3545 reload_archetypes;
3546 reload_regions;
3547 reload_treasures;
3548
3549 trace "finished reloading resource files\n";
3550}
3551
3552sub reload_config {
3553 trace "reloading config file...\n";
3554
3555 0 < aio_load "$CONFDIR/config", my $config
3556 or die "$CONFDIR/config: $!";
3557
3558 utf8::decode $config;
3559
3560 cf::get_slot 0.1, 10, "reload_config"; # yaml might be slow...
3561 *CFG = YAML::XS::Load $config;
3562
3563 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
3564
3565 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3566 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3567
3568 if (exists $CFG{mlockall}) {
3569 eval {
3570 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3571 and die "WARNING: m(un)lockall failed: $!\n";
3572 };
3573 warn $@ if $@;
3574 }
3575}
3576
3577sub pidfile() {
3578 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3579 or die "$PIDFILE: $!";
3580 flock $fh, &Fcntl::LOCK_EX
3581 or die "$PIDFILE: flock: $!";
3582 $fh
3583}
3584
3585# make sure only one server instance is running at any one time
3586sub atomic {
3587 my $fh = pidfile;
3588
3589 my $pid = <$fh>;
3590 kill 9, $pid if $pid > 0;
3591
3592 seek $fh, 0, 0;
3593 print $fh $$;
3594}
3595
3596sub main_loop {
3597 trace "EV::loop starting\n";
3598 if (1) {
3599 EV::loop;
3600 }
3601 trace "EV::loop returned\n";
3602 goto &main_loop unless $REALLY_UNLOOP;
3603}
3604
3605sub main {
3606 cf::init_globals; # initialise logging
3607
3608 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3609 LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3610 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3611 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3612
3613 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3614
3615 # we must not ever block the main coroutine
3616 local $Coro::idle = sub {
3617 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3618 (async {
3619 $Coro::current->{desc} = "IDLE BUG HANDLER";
3620 EV::loop EV::LOOP_ONESHOT;
3621 })->prio (Coro::PRIO_MAX);
3622 };
3623
3624 evthread_start IO::AIO::poll_fileno;
3625
3626 cf::sync_job {
3627 cf::incloader::init ();
3628
3629 cf::init_anim;
3630 cf::init_attackmess;
3631 cf::init_dynamic;
3632
3633 cf::load_settings;
3634
3635 reload_resources;
3636 reload_config;
3637 db_init;
3638
3639 cf::init_uuid;
3640 cf::init_signals;
3641 cf::init_skills;
3642
3643 cf::init_beforeplay;
3644
3645 atomic;
3646
3647 load_extensions;
3648
3649 utime time, time, $RUNTIMEFILE;
3650
3651 # no (long-running) fork's whatsoever before this point(!)
3652 use POSIX ();
3653 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3654
3655 (pop @POST_INIT)->(0) while @POST_INIT;
3656 };
3657
3658 cf::object::thawer::errors_are_fatal 0;
3659 info "parse errors in files are no longer fatal from this point on.\n";
3660
3661 my $free_main; $free_main = EV::idle sub {
3662 undef $free_main;
3663 undef &main; # free gobs of memory :)
3664 };
3665
3666 goto &main_loop;
3667}
3668
3669#############################################################################
3670# initialisation and cleanup
3671
3672# install some emergency cleanup handlers
3673BEGIN {
3674 our %SIGWATCHER = ();
3675 for my $signal (qw(INT HUP TERM)) {
3676 $SIGWATCHER{$signal} = AE::signal $signal, sub {
3677 cf::cleanup "SIG$signal";
3678 };
3679 }
3680}
3681
3682sub write_runtime_sync {
3683 my $t0 = AE::time;
3684
3685 # first touch the runtime file to show we are still running:
3686 # the fsync below can take a very very long time.
3687
3688 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3689
3690 my $guard = cf::lock_acquire "write_runtime";
3691
3692 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3693 or return;
3694
3695 my $value = $cf::RUNTIME + 90 + 10;
3696 # 10 is the runtime save interval, for a monotonic clock
3697 # 60 allows for the watchdog to kill the server.
3698
3699 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3700 and return;
3701
3702 # always fsync - this file is important
3703 aio_fsync $fh
3704 and return;
3705
3706 # touch it again to show we are up-to-date
3707 aio_utime $fh, undef, undef;
3708
3709 close $fh
3710 or return;
3711
3712 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3713 and return;
3714
3715 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3716
3717 1
3718}
3719
3720our $uuid_lock;
3721our $uuid_skip;
3722
3723sub write_uuid_sync($) {
3724 $uuid_skip ||= $_[0];
3725
3726 return if $uuid_lock;
3727 local $uuid_lock = 1;
3728
3729 my $uuid = "$LOCALDIR/uuid";
3730
3731 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3732 or return;
3733
3734 my $value = uuid_seq uuid_cur;
3735
3736 unless ($value) {
3737 info "cowardly refusing to write zero uuid value!\n";
3738 return;
3739 }
3740
3741 my $value = uuid_str $value + $uuid_skip;
3742 $uuid_skip = 0;
3743
3744 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3745 and return;
3746
3747 # always fsync - this file is important
3748 aio_fsync $fh
3749 and return;
3750
3751 close $fh
3752 or return;
3753
3754 aio_rename "$uuid~", $uuid
3755 and return;
3756
3757 trace "uuid file written ($value).\n";
3758
3759 1
3760
3761}
3762
3763sub write_uuid($$) {
3764 my ($skip, $sync) = @_;
3765
3766 $sync ? write_uuid_sync $skip
3767 : async { write_uuid_sync $skip };
3768}
3769
3770sub emergency_save() {
3771 my $freeze_guard = cf::freeze_mainloop;
3772
3773 info "emergency_perl_save: enter\n";
3774
3775 # this is a trade-off: we want to be very quick here, so
3776 # save all maps without fsync, and later call a global sync
3777 # (which in turn might be very very slow)
3778 local $USE_FSYNC = 0;
3779
3780 cf::sync_job {
3781 cf::write_runtime_sync; # external watchdog should not bark
3782
3783 # use a peculiar iteration method to avoid tripping on perl
3784 # refcount bugs in for. also avoids problems with players
3785 # and maps saved/destroyed asynchronously.
3786 info "emergency_perl_save: begin player save\n";
3787 for my $login (keys %cf::PLAYER) {
3788 my $pl = $cf::PLAYER{$login} or next;
3789 $pl->valid or next;
3790 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3791 $pl->save;
3792 }
3793 info "emergency_perl_save: end player save\n";
3794
3795 cf::write_runtime_sync; # external watchdog should not bark
3796
3797 info "emergency_perl_save: begin map save\n";
3798 for my $path (keys %cf::MAP) {
3799 my $map = $cf::MAP{$path} or next;
3800 $map->valid or next;
3801 $map->save;
3802 }
3803 info "emergency_perl_save: end map save\n";
3804
3805 cf::write_runtime_sync; # external watchdog should not bark
3806
3807 info "emergency_perl_save: begin database checkpoint\n";
3808 BDB::db_env_txn_checkpoint $DB_ENV;
3809 info "emergency_perl_save: end database checkpoint\n";
3810
3811 info "emergency_perl_save: begin write uuid\n";
3812 write_uuid_sync 1;
3813 info "emergency_perl_save: end write uuid\n";
3814
3815 cf::write_runtime_sync; # external watchdog should not bark
3816
3817 trace "emergency_perl_save: syncing database to disk";
3818 BDB::db_env_txn_checkpoint $DB_ENV;
3819
3820 info "emergency_perl_save: starting sync\n";
3821 IO::AIO::aio_sync sub {
3822 info "emergency_perl_save: finished sync\n";
3823 };
3824
3825 cf::write_runtime_sync; # external watchdog should not bark
3826
3827 trace "emergency_perl_save: flushing outstanding aio requests";
3828 while (IO::AIO::nreqs || BDB::nreqs) {
3829 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3830 }
3831
3832 cf::write_runtime_sync; # external watchdog should not bark
3833 };
3834
3835 info "emergency_perl_save: leave\n";
3836}
3837
3838sub post_cleanup {
3839 my ($make_core) = @_;
3840
3841 IO::AIO::flush;
3842
3843 error Carp::longmess "post_cleanup backtrace"
3844 if $make_core;
3845
3846 my $fh = pidfile;
3847 unlink $PIDFILE if <$fh> == $$;
3848}
3849
3850# a safer delete_package, copied from Symbol
3851sub clear_package($) {
3852 my $pkg = shift;
3853
3854 # expand to full symbol table name if needed
3855 unless ($pkg =~ /^main::.*::$/) {
3856 $pkg = "main$pkg" if $pkg =~ /^::/;
3857 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3858 $pkg .= '::' unless $pkg =~ /::$/;
3859 }
3860
3861 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3862 my $stem_symtab = *{$stem}{HASH};
3863
3864 defined $stem_symtab and exists $stem_symtab->{$leaf}
3865 or return;
3866
3867 # clear all symbols
3868 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3869 for my $name (keys %$leaf_symtab) {
3870 _gv_clear *{"$pkg$name"};
3871# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3872 }
3873}
3874
3875sub do_reload_perl() {
3876 # can/must only be called in main
3877 unless (in_main) {
3878 error "can only reload from main coroutine";
3879 return;
3880 }
3881
3882 return if $RELOAD++;
3883
3884 my $t1 = AE::time;
3885
3886 while ($RELOAD) {
3887 cf::get_slot 0.1, -1, "reload_perl";
3888 info "reloading...";
3889
3890 trace "entering sync_job";
3891
3892 cf::sync_job {
3893 #cf::emergency_save;
3894
3895 trace "cancelling all extension coros";
3896 $_->cancel for values %EXT_CORO;
3897 %EXT_CORO = ();
3898
3899 trace "removing commands";
3900 %COMMAND = ();
3901
3902 trace "removing ext/exti commands";
3903 %EXTCMD = ();
3904 %EXTICMD = ();
3905
3906 trace "unloading/nuking all extensions";
3907 for my $pkg (@EXTS) {
3908 trace "... unloading $pkg";
3909
3910 if (my $cb = $pkg->can ("unload")) {
3911 eval {
3912 $cb->($pkg);
3913 1
3914 } or error "$pkg unloaded, but with errors: $@";
3915 }
3916
3917 trace "... clearing $pkg";
3918 clear_package $pkg;
3919 }
3920
3921 trace "unloading all perl modules loaded from $LIBDIR";
3922 while (my ($k, $v) = each %INC) {
3923 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3924
3925 trace "... unloading $k";
3926 delete $INC{$k};
3927
3928 $k =~ s/\.pm$//;
3929 $k =~ s/\//::/g;
3930
3931 if (my $cb = $k->can ("unload_module")) {
3932 $cb->();
3933 }
3934
3935 clear_package $k;
3936 }
3937
3938 trace "getting rid of safe::, as good as possible";
3939 clear_package "safe::$_"
3940 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3941
3942 trace "unloading cf.pm \"a bit\"";
3943 delete $INC{"cf.pm"};
3944 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3945
3946 # don't, removes xs symbols, too,
3947 # and global variables created in xs
3948 #clear_package __PACKAGE__;
3949
3950 info "unload completed, starting to reload now";
3951
3952 trace "reloading cf.pm";
3953 require cf;
3954 cf::_connect_to_perl_1;
3955
3956 trace "loading config and database again";
3957 cf::reload_config;
3958
3959 trace "loading extensions";
3960 cf::load_extensions;
3961
3962 if ($REATTACH_ON_RELOAD) {
3963 trace "reattaching attachments to objects/players";
3964 _global_reattach; # objects, sockets
3965 trace "reattaching attachments to maps";
3966 reattach $_ for values %MAP;
3967 trace "reattaching attachments to players";
3968 reattach $_ for values %PLAYER;
3969 }
3970
3971 trace "running post_init jobs";
3972 (pop @POST_INIT)->(1) while @POST_INIT;
3973
3974 trace "leaving sync_job";
3975
3976 1
3977 } or do {
3978 error $@;
3979 cf::cleanup "error while reloading, exiting.";
3980 };
3981
3982 info "reloaded";
3983 --$RELOAD;
3984 }
3985
3986 $t1 = AE::time - $t1;
3987 info "reload completed in ${t1}s\n";
3988};
3989
3990our $RELOAD_WATCHER; # used only during reload
3991
3992sub reload_perl() {
3993 # doing reload synchronously and two reloads happen back-to-back,
3994 # coro crashes during coro_state_free->destroy here.
3995
3996 $RELOAD_WATCHER ||= cf::async {
3997 Coro::AIO::aio_wait cache_extensions;
3998
3999 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
4000 do_reload_perl;
4001 undef $RELOAD_WATCHER;
4002 };
4003 };
4004}
4005
4006register_command "reload" => sub {
4007 my ($who, $arg) = @_;
4008
4009 if ($who->flag (FLAG_WIZ)) {
4010 $who->message ("reloading server.");
4011 async {
4012 $Coro::current->{desc} = "perl_reload";
4013 reload_perl;
4014 };
4015 }
4016};
4017
4018#############################################################################
4019
4020my $bug_warning = 0;
4021
4022our @WAIT_FOR_TICK;
4023our @WAIT_FOR_TICK_BEGIN;
4024
4025sub wait_for_tick() {
4026 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4027
4028 my $signal = new Coro::Signal;
4029 push @WAIT_FOR_TICK, $signal;
4030 $signal->wait;
4031}
4032
4033sub wait_for_tick_begin() {
4034 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4035
4036 my $signal = new Coro::Signal;
4037 push @WAIT_FOR_TICK_BEGIN, $signal;
4038 $signal->wait;
4039}
4040
4041sub tick {
4042 if ($Coro::current != $Coro::main) {
4043 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
4044 unless ++$bug_warning > 10;
4045 return;
4046 }
4047
4048 cf::server_tick; # one server iteration
4049
4050 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
4051
4052 if ($NOW >= $NEXT_RUNTIME_WRITE) {
4053 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
4054 Coro::async_pool {
4055 $Coro::current->{desc} = "runtime saver";
4056 write_runtime_sync
4057 or error "ERROR: unable to write runtime file: $!";
4058 };
4059 }
4060
4061 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4062 $sig->send;
4063 }
4064 while (my $sig = shift @WAIT_FOR_TICK) {
4065 $sig->send;
4066 }
4067
4068 $LOAD = ($NOW - $TICK_START) / $TICK;
4069 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4070
4071 if (0) {
4072 if ($NEXT_TICK) {
4073 my $jitter = $TICK_START - $NEXT_TICK;
4074 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4075 debug "jitter $JITTER\n";#d#
4076 }
4077 }
4078}
1085 4079
1086{ 4080{
1087 my $path = cf::localdir . "/database.pst"; 4081 # configure BDB
1088 4082
1089 sub db_load() { 4083 BDB::min_parallel 16;
1090 warn "loading database $path\n";#d# remove later 4084 BDB::max_poll_reqs $TICK * 0.1;
1091 $DB = stat $path ? Storable::retrieve $path : { }; 4085 $AnyEvent::BDB::WATCHER->priority (1);
1092 }
1093 4086
1094 my $pid; 4087 unless ($DB_ENV) {
4088 $DB_ENV = BDB::db_env_create;
4089 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4090 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4091 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4092 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4093 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1095 4094
1096 sub db_save() { 4095 cf::sync_job {
1097 warn "saving database $path\n";#d# remove later
1098 waitpid $pid, 0 if $pid;
1099 if (0 == ($pid = fork)) {
1100 $DB->{_meta}{version} = 1;
1101 Storable::nstore $DB, "$path~";
1102 rename "$path~", $path;
1103 cf::_exit 0 if defined $pid;
1104 }
1105 }
1106
1107 my $dirty;
1108
1109 sub db_sync() {
1110 db_save if $dirty;
1111 undef $dirty;
1112 }
1113
1114 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1115 db_sync;
1116 });
1117
1118 sub db_dirty() {
1119 $dirty = 1;
1120 $idle->start;
1121 }
1122
1123 sub db_get($;$) {
1124 @_ >= 2
1125 ? $DB->{$_[0]}{$_[1]}
1126 : ($DB->{$_[0]} ||= { })
1127 }
1128
1129 sub db_put($$;$) {
1130 if (@_ >= 3) {
1131 $DB->{$_[0]}{$_[1]} = $_[2];
1132 } else { 4096 eval {
1133 $DB->{$_[0]} = $_[1]; 4097 BDB::db_env_open
1134 } 4098 $DB_ENV,
1135 db_dirty; 4099 $BDBDIR,
1136 } 4100 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
4101 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
4102 0666;
1137 4103
1138 cf::global->attach ( 4104 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1139 prio => 10000,
1140 on_cleanup => sub {
1141 db_sync;
1142 },
1143 );
1144}
1145
1146#############################################################################
1147# the server's main()
1148
1149sub cfg_load {
1150 open my $fh, "<:utf8", cf::confdir . "/config"
1151 or return;
1152
1153 local $/;
1154 *CFG = YAML::Syck::Load <$fh>;
1155}
1156
1157sub main {
1158 cfg_load;
1159 db_load;
1160 load_extensions;
1161 Event::loop;
1162}
1163
1164#############################################################################
1165# initialisation
1166
1167sub _perl_reload(&) {
1168 my ($msg) = @_;
1169
1170 $msg->("reloading...");
1171
1172 eval {
1173 # cancel all watchers
1174 for (Event::all_watchers) {
1175 $_->cancel if $_->data & WF_AUTOCANCEL;
1176 }
1177
1178 # unload all extensions
1179 for (@exts) {
1180 $msg->("unloading <$_>");
1181 unload_extension $_;
1182 }
1183
1184 # unload all modules loaded from $LIBDIR
1185 while (my ($k, $v) = each %INC) {
1186 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187
1188 $msg->("removing <$k>");
1189 delete $INC{$k};
1190
1191 $k =~ s/\.pm$//;
1192 $k =~ s/\//::/g;
1193
1194 if (my $cb = $k->can ("unload_module")) {
1195 $cb->();
1196 } 4105 };
1197 4106
1198 Symbol::delete_package $k; 4107 cf::cleanup "db_env_open(db): $@" if $@;
1199 } 4108 };
4109 }
1200 4110
1201 # sync database to disk 4111 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1202 cf::db_sync; 4112 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1203
1204 # get rid of safe::, as good as possible
1205 Symbol::delete_package "safe::$_"
1206 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
1207
1208 # remove register_script_function callbacks
1209 # TODO
1210
1211 # unload cf.pm "a bit"
1212 delete $INC{"cf.pm"};
1213
1214 # don't, removes xs symbols, too,
1215 # and global variables created in xs
1216 #Symbol::delete_package __PACKAGE__;
1217
1218 # reload cf.pm
1219 $msg->("reloading cf.pm");
1220 require cf;
1221
1222 # load config and database again
1223 cf::cfg_load;
1224 cf::db_load;
1225
1226 # load extensions
1227 $msg->("load extensions");
1228 cf::load_extensions;
1229
1230 # reattach attachments to objects
1231 $msg->("reattach");
1232 _global_reattach;
1233 }; 4113 };
1234 $msg->($@) if $@; 4114 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1235 4115 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1236 $msg->("reloaded");
1237};
1238
1239sub perl_reload() {
1240 _perl_reload {
1241 warn $_[0];
1242 print "$_[0]\n";
1243 }; 4116 };
4117 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4118 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4119 };
1244} 4120}
1245 4121
1246register "<global>", __PACKAGE__; 4122{
4123 # configure IO::AIO
1247 4124
1248register_command "perl-reload" => sub { 4125 IO::AIO::min_parallel 8;
4126 IO::AIO::max_poll_time $TICK * 0.1;
4127 undef $AnyEvent::AIO::WATCHER;
4128}
4129
4130my $_log_backtrace;
4131
4132sub _log_backtrace {
1249 my ($who, $arg) = @_; 4133 my ($msg, @addr) = @_;
1250 4134
1251 if ($who->flag (FLAG_WIZ)) { 4135 $msg =~ s/\n//;
1252 _perl_reload { 4136
1253 warn $_[0]; 4137 # limit the # of concurrent backtraces
1254 $who->message ($_[0]); 4138 if ($_log_backtrace < 2) {
4139 ++$_log_backtrace;
4140 my $perl_bt = Carp::longmess $msg;
4141 async {
4142 $Coro::current->{desc} = "abt $msg";
4143
4144 my @bt = fork_call {
4145 @addr = map { sprintf "%x", $_ } @addr;
4146 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4147 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4148 or die "addr2line: $!";
4149
4150 my @funcs;
4151 my @res = <$fh>;
4152 chomp for @res;
4153 while (@res) {
4154 my ($func, $line) = splice @res, 0, 2, ();
4155 push @funcs, "[$func] $line";
4156 }
4157
4158 @funcs
4159 };
4160
4161 LOG llevInfo, "[ABT] $perl_bt\n";
4162 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4163 LOG llevInfo, "[ABT] $_\n" for @bt;
4164 --$_log_backtrace;
1255 }; 4165 };
1256 } 4166 } else {
1257}; 4167 LOG llevInfo, "[ABT] $msg\n";
1258 4168 LOG llevInfo, "[ABT] [suppressed]\n";
1259unshift @INC, $LIBDIR;
1260
1261$TICK_WATCHER = Event->timer (
1262 prio => 0,
1263 at => $NEXT_TICK || 1,
1264 data => WF_AUTOCANCEL,
1265 cb => sub {
1266 cf::server_tick; # one server iteration
1267
1268 my $NOW = Event::time;
1269 $NEXT_TICK += $TICK;
1270
1271 # if we are delayed by four ticks or more, skip them all
1272 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1273
1274 $TICK_WATCHER->at ($NEXT_TICK);
1275 $TICK_WATCHER->start;
1276 }, 4169 }
1277); 4170}
1278 4171
1279IO::AIO::max_poll_time $TICK * 0.2; 4172# load additional modules
4173require "cf/$_.pm" for @EXTRA_MODULES;
4174cf::_connect_to_perl_2;
1280 4175
1281Event->io (fd => IO::AIO::poll_fileno, 4176END { cf::emergency_save }
1282 poll => 'r',
1283 prio => 5,
1284 data => WF_AUTOCANCEL,
1285 cb => \&IO::AIO::poll_cb);
1286 4177
12871 41781
1288 4179

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