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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 1.536 by root, Thu Apr 29 08:26:38 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
25use 5.10.0;
3use utf8; 26use utf8;
4use strict; 27use strict qw(vars subs);
5 28
6use Symbol; 29use Symbol;
7use List::Util; 30use List::Util;
8use Storable; 31use Socket;
32use EV;
9use Opcode; 33use Opcode;
10use Safe; 34use Safe;
11use Safe::Hole; 35use Safe::Hole;
36use Storable ();
37use Carp ();
12 38
39use Guard ();
13use Coro; 40use Coro ();
41use Coro::State;
42use Coro::Handle;
43use Coro::EV;
14use Coro::Event; 44use Coro::AnyEvent;
15use Coro::Timer; 45use Coro::Timer;
16use Coro::Signal; 46use Coro::Signal;
17use Coro::Semaphore; 47use Coro::Semaphore;
48use Coro::SemaphoreSet;
49use Coro::AnyEvent;
50use Coro::AIO;
51use Coro::BDB 1.6;
52use Coro::Storable;
53use Coro::Util ();
18 54
55use JSON::XS 2.01 ();
56use BDB ();
57use Data::Dumper;
58use Fcntl;
59use YAML::XS ();
19use IO::AIO; 60use IO::AIO ();
20use YAML::Syck ();
21use Time::HiRes; 61use Time::HiRes;
62use Compress::LZF;
63use Digest::MD5 ();
22 64
23use Event; $Event::Eval = 1; # no idea why this is required, but it is 65AnyEvent::detect;
24 66
25# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 67# configure various modules to our taste
26$YAML::Syck::ImplicitUnicode = 1; 68#
69$Storable::canonical = 1; # reduce rsync transfers
70Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
27 71
28$Coro::main->prio (Coro::PRIO_MIN); 72$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
73
74# make sure c-lzf reinitialises itself
75Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
76Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
77
78# strictly for debugging
79$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
29 80
30sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 81sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
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);
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 $cf::LOAD
227
228The raw value load value from the last tick.
229
68=item %cf::CFG 230=item %cf::CFG
69 231
70Configuration for the server, loaded from C</etc/crossfire/config>, or 232Configuration for the server, loaded from C</etc/deliantra-server/config>, or
71from wherever your confdir points to. 233from wherever your confdir points to.
72 234
235=item cf::wait_for_tick, cf::wait_for_tick_begin
236
237These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
238returns directly I<after> the tick processing (and consequently, can only wake one process
239per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
240
241=item @cf::INVOKE_RESULTS
242
243This array contains the results of the last C<invoke ()> call. When
244C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
245that call.
246
247=item %cf::REFLECT
248
249Contains, for each (C++) class name, a hash reference with information
250about object members (methods, scalars, arrays and flags) and other
251metadata, which is useful for introspection.
252
73=back 253=back
74 254
75=cut 255=cut
76 256
77BEGIN { 257sub error(@) { LOG llevError, join "", @_ }
78 *CORE::GLOBAL::warn = sub { 258sub warn (@) { LOG llevWarn , join "", @_ }
259sub info (@) { LOG llevInfo , join "", @_ }
260sub debug(@) { LOG llevDebug, join "", @_ }
261sub trace(@) { LOG llevTrace, join "", @_ }
262
263$Coro::State::WARNHOOK = sub {
79 my $msg = join "", @_; 264 my $msg = join "", @_;
265
80 $msg .= "\n" 266 $msg .= "\n"
81 unless $msg =~ /\n$/; 267 unless $msg =~ /\n$/;
82 268
83 print STDERR "cfperl: $msg"; 269 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
84 LOG llevError, "cfperl: $msg"; 270
85 }; 271 LOG llevWarn, $msg;
86} 272};
273
274$Coro::State::DIEHOOK = sub {
275 return unless $^S eq 0; # "eq", not "=="
276
277 error Carp::longmess $_[0];
278
279 if (in_main) {#d#
280 error "DIEHOOK called in main context, Coro bug?\n";#d#
281 return;#d#
282 }#d#
283
284 # kill coroutine otherwise
285 Coro::terminate
286};
87 287
88@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 288@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 289@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
90@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 290@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
91@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 291@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
92@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 292@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
293@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
93@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 294@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
94 295
95# we bless all objects into (empty) derived classes to force a method lookup 296# we bless all objects into (empty) derived classes to force a method lookup
96# within the Safe compartment. 297# within the Safe compartment.
97for my $pkg (qw( 298for my $pkg (qw(
98 cf::global 299 cf::global cf::attachable
99 cf::object cf::object::player 300 cf::object cf::object::player
100 cf::client cf::player 301 cf::client cf::player
101 cf::arch cf::living 302 cf::arch cf::living
303 cf::map cf::mapspace
102 cf::map cf::party cf::region 304 cf::party cf::region
103)) { 305)) {
104 no strict 'refs';
105 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 306 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
106} 307}
107 308
108$Event::DIED = sub { 309$EV::DIED = sub {
109 warn "error in event callback: @_"; 310 Carp::cluck "error in event callback: @_";
110}; 311};
111 312
112my %ext_pkg; 313#############################################################################
113my @exts;
114my @hook;
115 314
116=head2 UTILITY FUNCTIONS 315=head2 UTILITY FUNCTIONS
117 316
118=over 4 317=over 4
119 318
120=cut 319=item dumpval $ref
121 320
122use JSON::Syck (); # TODO# replace by JSON::PC once working 321=cut
123 322
323sub dumpval {
324 eval {
325 local $SIG{__DIE__};
326 my $d;
327 if (1) {
328 $d = new Data::Dumper([$_[0]], ["*var"]);
329 $d->Terse(1);
330 $d->Indent(2);
331 $d->Quotekeys(0);
332 $d->Useqq(1);
333 #$d->Bless(...);
334 $d->Seen($_[1]) if @_ > 1;
335 $d = $d->Dump();
336 }
337 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
338 $d
339 } || "[unable to dump $_[0]: '$@']";
340}
341
124=item $ref = cf::from_json $json 342=item $ref = cf::decode_json $json
125 343
126Converts a JSON string into the corresponding perl data structure. 344Converts a JSON string into the corresponding perl data structure.
127 345
128=cut
129
130sub from_json($) {
131 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
132 JSON::Syck::Load $_[0]
133}
134
135=item $json = cf::to_json $ref 346=item $json = cf::encode_json $ref
136 347
137Converts a perl data structure into its JSON representation. 348Converts a perl data structure into its JSON representation.
138 349
139=cut 350=cut
140 351
141sub to_json($) { 352our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
142 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 353
143 JSON::Syck::Dump $_[0] 354sub encode_json($) { $json_coder->encode ($_[0]) }
355sub decode_json($) { $json_coder->decode ($_[0]) }
356
357=item cf::post_init { BLOCK }
358
359Execute the given codeblock, I<after> all extensions have been (re-)loaded,
360but I<before> the server starts ticking again.
361
362The cdoeblock will have a single boolean argument to indicate whether this
363is a reload or not.
364
365=cut
366
367sub post_init(&) {
368 push @POST_INIT, shift;
369}
370
371=item cf::lock_wait $string
372
373Wait until the given lock is available. See cf::lock_acquire.
374
375=item my $lock = cf::lock_acquire $string
376
377Wait until the given lock is available and then acquires it and returns
378a L<Guard> object. If the guard object gets destroyed (goes out of scope,
379for example when the coroutine gets canceled), the lock is automatically
380returned.
381
382Locks are *not* recursive, locking from the same coro twice results in a
383deadlocked coro.
384
385Lock names should begin with a unique identifier (for example, cf::map::find
386uses map_find and cf::map::load uses map_load).
387
388=item $locked = cf::lock_active $string
389
390Return true if the lock is currently active, i.e. somebody has locked it.
391
392=cut
393
394our $LOCKS = new Coro::SemaphoreSet;
395
396sub lock_wait($) {
397 $LOCKS->wait ($_[0]);
398}
399
400sub lock_acquire($) {
401 $LOCKS->guard ($_[0])
402}
403
404sub lock_active($) {
405 $LOCKS->count ($_[0]) < 1
406}
407
408sub freeze_mainloop {
409 tick_inhibit_inc;
410
411 &Guard::guard (\&tick_inhibit_dec);
412}
413
414=item cf::periodic $interval, $cb
415
416Like EV::periodic, but randomly selects a starting point so that the actions
417get spread over time.
418
419=cut
420
421sub periodic($$) {
422 my ($interval, $cb) = @_;
423
424 my $start = rand List::Util::min 180, $interval;
425
426 EV::periodic $start, $interval, 0, $cb
427}
428
429=item cf::get_slot $time[, $priority[, $name]]
430
431Allocate $time seconds of blocking CPU time at priority C<$priority>:
432This call blocks and returns only when you have at least C<$time> seconds
433of cpu time till the next tick. The slot is only valid till the next cede.
434
435The optional C<$name> can be used to identify the job to run. It might be
436used for statistical purposes and should identify the same time-class.
437
438Useful for short background jobs.
439
440=cut
441
442our @SLOT_QUEUE;
443our $SLOT_QUEUE;
444our $SLOT_DECAY = 0.9;
445
446$SLOT_QUEUE->cancel if $SLOT_QUEUE;
447$SLOT_QUEUE = Coro::async {
448 $Coro::current->desc ("timeslot manager");
449
450 my $signal = new Coro::Signal;
451 my $busy;
452
453 while () {
454 next_job:
455
456 my $avail = cf::till_tick;
457
458 for (0 .. $#SLOT_QUEUE) {
459 if ($SLOT_QUEUE[$_][0] <= $avail) {
460 $busy = 0;
461 my $job = splice @SLOT_QUEUE, $_, 1, ();
462 $job->[2]->send;
463 Coro::cede;
464 goto next_job;
465 } else {
466 $SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
467 }
468 }
469
470 if (@SLOT_QUEUE) {
471 # we do not use wait_for_tick() as it returns immediately when tick is inactive
472 push @cf::WAIT_FOR_TICK, $signal;
473 $signal->wait;
474 } else {
475 $busy = 0;
476 Coro::schedule;
477 }
478 }
479};
480
481sub get_slot($;$$) {
482 return if tick_inhibit || $Coro::current == $Coro::main;
483
484 my ($time, $pri, $name) = @_;
485
486 $time = clamp $time, 0.01, $TICK * .6;
487
488 my $sig = new Coro::Signal;
489
490 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
491 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
492 $SLOT_QUEUE->ready;
493 $sig->wait;
494}
495
496=item cf::async { BLOCK }
497
498Currently the same as Coro::async_pool, meaning you cannot use
499C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
500thing you are allowed to do is call C<prio> on it.
501
502=cut
503
504BEGIN { *async = \&Coro::async_pool }
505
506=item cf::sync_job { BLOCK }
507
508The design of Deliantra requires that the main coroutine ($Coro::main)
509is always able to handle events or runnable, as Deliantra is only
510partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
511acceptable.
512
513If it must be done, put the blocking parts into C<sync_job>. This will run
514the given BLOCK in another coroutine while waiting for the result. The
515server will be frozen during this time, so the block should either finish
516fast or be very important.
517
518=cut
519
520sub sync_job(&) {
521 my ($job) = @_;
522
523 if (in_main) {
524 my $time = AE::time;
525
526 # this is the main coro, too bad, we have to block
527 # till the operation succeeds, freezing the server :/
528
529 #LOG llevError, Carp::longmess "sync job";#d#
530
531 my $freeze_guard = freeze_mainloop;
532
533 my $busy = 1;
534 my @res;
535
536 (async {
537 $Coro::current->desc ("sync job coro");
538 @res = eval { $job->() };
539 error $@ if $@;
540 undef $busy;
541 })->prio (Coro::PRIO_MAX);
542
543 while ($busy) {
544 if (Coro::nready) {
545 Coro::cede_notself;
546 } else {
547 EV::loop EV::LOOP_ONESHOT;
548 }
549 }
550
551 my $time = AE::time - $time;
552
553 $TICK_START += $time; # do not account sync jobs to server load
554
555 wantarray ? @res : $res[0]
556 } else {
557 # we are in another coroutine, how wonderful, everything just works
558
559 $job->()
560 }
561}
562
563=item $coro = cf::async_ext { BLOCK }
564
565Like async, but this coro is automatically being canceled when the
566extension calling this is being unloaded.
567
568=cut
569
570sub async_ext(&) {
571 my $cb = shift;
572
573 my $coro = &Coro::async ($cb);
574
575 $coro->on_destroy (sub {
576 delete $EXT_CORO{$coro+0};
577 });
578 $EXT_CORO{$coro+0} = $coro;
579
580 $coro
581}
582
583=item fork_call { }, $args
584
585Executes the given code block with the given arguments in a seperate
586process, returning the results. Everything must be serialisable with
587Coro::Storable. May, of course, block. Note that the executed sub may
588never block itself or use any form of event handling.
589
590=cut
591
592sub fork_call(&@) {
593 my ($cb, @args) = @_;
594
595 # we seemingly have to make a local copy of the whole thing,
596 # otherwise perl prematurely frees the stuff :/
597 # TODO: investigate and fix (likely this will be rather laborious)
598
599 my @res = Coro::Util::fork_eval {
600 reset_signals;
601 &$cb
602 }, @args;
603
604 wantarray ? @res : $res[-1]
605}
606
607sub objinfo {
608 (
609 "counter value" => cf::object::object_count,
610 "objects created" => cf::object::create_count,
611 "objects destroyed" => cf::object::destroy_count,
612 "freelist size" => cf::object::free_count,
613 "allocated objects" => cf::object::objects_size,
614 "active objects" => cf::object::actives_size,
615 )
616}
617
618=item $coin = coin_from_name $name
619
620=cut
621
622our %coin_alias = (
623 "silver" => "silvercoin",
624 "silvercoin" => "silvercoin",
625 "silvercoins" => "silvercoin",
626 "gold" => "goldcoin",
627 "goldcoin" => "goldcoin",
628 "goldcoins" => "goldcoin",
629 "platinum" => "platinacoin",
630 "platinumcoin" => "platinacoin",
631 "platinumcoins" => "platinacoin",
632 "platina" => "platinacoin",
633 "platinacoin" => "platinacoin",
634 "platinacoins" => "platinacoin",
635 "royalty" => "royalty",
636 "royalties" => "royalty",
637);
638
639sub coin_from_name($) {
640 $coin_alias{$_[0]}
641 ? cf::arch::find $coin_alias{$_[0]}
642 : undef
643}
644
645=item $value = cf::db_get $family => $key
646
647Returns a single value from the environment database.
648
649=item cf::db_put $family => $key => $value
650
651Stores the given C<$value> in the family. It can currently store binary
652data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
653
654=item $db = cf::db_table "name"
655
656Create and/or open a new database table. The string must not be "db" and must be unique
657within each server.
658
659=cut
660
661sub db_table($) {
662 cf::error "db_get called from main context"
663 if $Coro::current == $Coro::main;
664
665 my ($name) = @_;
666 my $db = BDB::db_create $DB_ENV;
667
668 eval {
669 $db->set_flags (BDB::CHKSUM);
670
671 utf8::encode $name;
672 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
673 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
674 cf::cleanup "db_open(db): $!" if $!;
675 };
676 cf::cleanup "db_open(db): $@" if $@;
677
678 $db
679}
680
681our $DB;
682
683sub db_init {
684 $DB ||= db_table "db";
685}
686
687sub db_get($$) {
688 my $key = "$_[0]/$_[1]";
689
690 cf::error "db_get called from main context"
691 if $Coro::current == $Coro::main;
692
693 BDB::db_get $DB, undef, $key, my $data;
694
695 $! ? ()
696 : $data
697}
698
699sub db_put($$$) {
700 BDB::dbreq_pri 4;
701 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
702}
703
704=item cf::cache $id => [$paths...], $processversion => $process
705
706Generic caching function that returns the value of the resource $id,
707caching and regenerating as required.
708
709This function can block.
710
711=cut
712
713sub cache {
714 my ($id, $src, $processversion, $process) = @_;
715
716 my $meta =
717 join "\x00",
718 $processversion,
719 map {
720 aio_stat $_
721 and Carp::croak "$_: $!";
722
723 ($_, (stat _)[7,9])
724 } @$src;
725
726 my $dbmeta = db_get cache => "$id/meta";
727 if ($dbmeta ne $meta) {
728 # changed, we may need to process
729
730 my @data;
731 my $md5;
732
733 for (0 .. $#$src) {
734 0 <= aio_load $src->[$_], $data[$_]
735 or Carp::croak "$src->[$_]: $!";
736 }
737
738 # if processing is expensive, check
739 # checksum first
740 if (1) {
741 $md5 =
742 join "\x00",
743 $processversion,
744 map {
745 cf::cede_to_tick;
746 ($src->[$_], Digest::MD5::md5_hex $data[$_])
747 } 0.. $#$src;
748
749
750 my $dbmd5 = db_get cache => "$id/md5";
751 if ($dbmd5 eq $md5) {
752 db_put cache => "$id/meta", $meta;
753
754 return db_get cache => "$id/data";
755 }
756 }
757
758 my $t1 = Time::HiRes::time;
759 my $data = $process->(\@data);
760 my $t2 = Time::HiRes::time;
761
762 info "cache: '$id' processed in ", $t2 - $t1, "s\n";
763
764 db_put cache => "$id/data", $data;
765 db_put cache => "$id/md5" , $md5;
766 db_put cache => "$id/meta", $meta;
767
768 return $data;
769 }
770
771 db_get cache => "$id/data"
772}
773
774=item cf::datalog type => key => value, ...
775
776Log a datalog packet of the given type with the given key-value pairs.
777
778=cut
779
780sub datalog($@) {
781 my ($type, %kv) = @_;
782 info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
144} 783}
145 784
146=back 785=back
147 786
148=cut 787=cut
149 788
150############################################################################# 789#############################################################################
151 790
152=head2 ATTACHABLE OBJECTS 791=head2 ATTACHABLE OBJECTS
153 792
154Many objects in crossfire are so-called attachable objects. That means you can 793Many objects in deliantra are so-called attachable objects. That means you can
155attach callbacks/event handlers (a collection of which is called an "attachment") 794attach callbacks/event handlers (a collection of which is called an "attachment")
156to it. All such attachable objects support the following methods. 795to it. All such attachable objects support the following methods.
157 796
158In the following description, CLASS can be any of C<global>, C<object> 797In 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 798C<player>, C<client> or C<map> (i.e. the attachable objects in
160crossfire+). 799Deliantra).
161 800
162=over 4 801=over 4
163 802
164=item $attachable->attach ($attachment, key => $value...) 803=item $attachable->attach ($attachment, key => $value...)
165 804
… …
209=item cf::CLASS::attachment $name, ... 848=item cf::CLASS::attachment $name, ...
210 849
211Register an attachment by C<$name> through which attachable objects of the 850Register an attachment by C<$name> through which attachable objects of the
212given CLASS can refer to this attachment. 851given CLASS can refer to this attachment.
213 852
214Some classes such as crossfire maps and objects can specify attachments 853Some classes such as deliantra maps and objects can specify attachments
215that are attached at load/instantiate time, thus the need for a name. 854that are attached at load/instantiate time, thus the need for a name.
216 855
217These calls expect any number of the following handler/hook descriptions: 856These calls expect any number of the following handler/hook descriptions:
218 857
219=over 4 858=over 4
… …
269exception. 908exception.
270 909
271=cut 910=cut
272 911
273# the following variables are defined in .xs and must not be re-created 912# the following variables are defined in .xs and must not be re-created
274our @CB_GLOBAL = (); # registry for all global events 913our @CB_GLOBAL = (); # registry for all global events
914our @CB_ATTACHABLE = (); # registry for all attachables
275our @CB_OBJECT = (); # all objects (should not be used except in emergency) 915our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276our @CB_PLAYER = (); 916our @CB_PLAYER = ();
277our @CB_CLIENT = (); 917our @CB_CLIENT = ();
278our @CB_TYPE = (); # registry for type (cf-object class) based events 918our @CB_TYPE = (); # registry for type (cf-object class) based events
279our @CB_MAP = (); 919our @CB_MAP = ();
280 920
281my %attachment; 921my %attachment;
922
923sub cf::attachable::thawer_merge {
924 # simply override everything except _meta
925 local $_[0]{_meta};
926 %{$_[0]} = %{$_[1]};
927}
282 928
283sub _attach_cb($$$$) { 929sub _attach_cb($$$$) {
284 my ($registry, $event, $prio, $cb) = @_; 930 my ($registry, $event, $prio, $cb) = @_;
285 931
286 use sort 'stable'; 932 use sort 'stable';
… …
289 935
290 @{$registry->[$event]} = sort 936 @{$registry->[$event]} = sort
291 { $a->[0] cmp $b->[0] } 937 { $a->[0] cmp $b->[0] }
292 @{$registry->[$event] || []}, $cb; 938 @{$registry->[$event] || []}, $cb;
293} 939}
940
941# hack
942my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294 943
295# attach handles attaching event callbacks 944# attach handles attaching event callbacks
296# the only thing the caller has to do is pass the correct 945# the only thing the caller has to do is pass the correct
297# registry (== where the callback attaches to). 946# registry (== where the callback attaches to).
298sub _attach { 947sub _attach {
… …
300 949
301 my $object_type; 950 my $object_type;
302 my $prio = 0; 951 my $prio = 0;
303 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 952 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304 953
954 #TODO: get rid of this hack
955 if ($attachable_klass{$klass}) {
956 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
957 }
958
305 while (@arg) { 959 while (@arg) {
306 my $type = shift @arg; 960 my $type = shift @arg;
307 961
308 if ($type eq "prio") { 962 if ($type eq "prio") {
309 $prio = shift @arg; 963 $prio = shift @arg;
… …
313 $registry = $CB_TYPE[$object_type] ||= []; 967 $registry = $CB_TYPE[$object_type] ||= [];
314 968
315 } elsif ($type eq "subtype") { 969 } elsif ($type eq "subtype") {
316 defined $object_type or Carp::croak "subtype specified without type"; 970 defined $object_type or Carp::croak "subtype specified without type";
317 my $object_subtype = shift @arg; 971 my $object_subtype = shift @arg;
318 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 972 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
319 973
320 } elsif ($type eq "package") { 974 } elsif ($type eq "package") {
321 my $pkg = shift @arg; 975 my $pkg = shift @arg;
322 976
323 while (my ($name, $id) = each %cb_id) { 977 while (my ($name, $id) = each %cb_id) {
… …
328 982
329 } elsif (exists $cb_id{$type}) { 983 } elsif (exists $cb_id{$type}) {
330 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg; 984 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
331 985
332 } elsif (ref $type) { 986 } elsif (ref $type) {
333 warn "attaching objects not supported, ignoring.\n"; 987 error "attaching objects not supported, ignoring.\n";
334 988
335 } else { 989 } else {
336 shift @arg; 990 shift @arg;
337 warn "attach argument '$type' not supported, ignoring.\n"; 991 error "attach argument '$type' not supported, ignoring.\n";
338 } 992 }
339 } 993 }
340} 994}
341 995
342sub _object_attach { 996sub _object_attach {
… …
352 _attach $registry, $klass, @attach; 1006 _attach $registry, $klass, @attach;
353 } 1007 }
354 1008
355 $obj->{$name} = \%arg; 1009 $obj->{$name} = \%arg;
356 } else { 1010 } else {
357 warn "object uses attachment '$name' that is not available, postponing.\n"; 1011 info "object uses attachment '$name' which is not available, postponing.\n";
358 } 1012 }
359 1013
360 $obj->{_attachment}{$name} = undef; 1014 $obj->{_attachment}{$name} = undef;
361} 1015}
362 1016
… …
364 if (ref $_[0]) { 1018 if (ref $_[0]) {
365 _object_attach @_; 1019 _object_attach @_;
366 } else { 1020 } else {
367 _attach shift->_attach_registry, @_; 1021 _attach shift->_attach_registry, @_;
368 } 1022 }
1023 _recalc_want;
369}; 1024};
370 1025
371# all those should be optimised 1026# all those should be optimised
372sub cf::attachable::detach { 1027sub cf::attachable::detach {
373 my ($obj, $name) = @_; 1028 my ($obj, $name) = @_;
… …
376 delete $obj->{_attachment}{$name}; 1031 delete $obj->{_attachment}{$name};
377 reattach ($obj); 1032 reattach ($obj);
378 } else { 1033 } else {
379 Carp::croak "cannot, currently, detach class attachments"; 1034 Carp::croak "cannot, currently, detach class attachments";
380 } 1035 }
1036 _recalc_want;
381}; 1037};
382 1038
383sub cf::attachable::attached { 1039sub cf::attachable::attached {
384 my ($obj, $name) = @_; 1040 my ($obj, $name) = @_;
385 1041
386 exists $obj->{_attachment}{$name} 1042 exists $obj->{_attachment}{$name}
387} 1043}
388 1044
389for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 1045for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390 eval "#line " . __LINE__ . " 'cf.pm' 1046 eval "#line " . __LINE__ . " 'cf.pm'
391 sub cf::\L$klass\E::_attach_registry { 1047 sub cf::\L$klass\E::_attach_registry {
392 (\\\@CB_$klass, KLASS_$klass) 1048 (\\\@CB_$klass, KLASS_$klass)
393 } 1049 }
394 1050
… …
400 "; 1056 ";
401 die if $@; 1057 die if $@;
402} 1058}
403 1059
404our $override; 1060our $override;
405our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 1061our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
406 1062
407sub override { 1063sub override {
408 $override = 1; 1064 $override = 1;
409 @invoke_results = (); 1065 @INVOKE_RESULTS = (@_);
410} 1066}
411 1067
412sub do_invoke { 1068sub do_invoke {
413 my $event = shift; 1069 my $event = shift;
414 my $callbacks = shift; 1070 my $callbacks = shift;
415 1071
416 @invoke_results = (); 1072 @INVOKE_RESULTS = ();
417 1073
418 local $override; 1074 local $override;
419 1075
420 for (@$callbacks) { 1076 for (@$callbacks) {
421 eval { &{$_->[1]} }; 1077 eval { &{$_->[1]} };
422 1078
423 if ($@) { 1079 if ($@) {
424 warn "$@";
425 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; 1080 error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
426 override; 1081 override;
427 } 1082 }
428 1083
429 return 1 if $override; 1084 return 1 if $override;
430 } 1085 }
431 1086
432 0 1087 0
433} 1088}
434 1089
435=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) 1090=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
436 1091
437=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) 1092=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
438 1093
439Generate an object-specific event with the given arguments. 1094Generate an object-specific event with the given arguments.
440 1095
441This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 1096This 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 1097removed in future versions), and there is no public API to access override
443results (if you must, access C<@cf::invoke_results> directly). 1098results (if you must, access C<@cf::INVOKE_RESULTS> directly).
444 1099
445=back 1100=back
446 1101
447=cut 1102=cut
448 1103
449############################################################################# 1104#############################################################################
450# object support 1105# object support
451 1106
452sub instantiate { 1107sub _object_equal($$);
1108sub _object_equal($$) {
1109 my ($a, $b) = @_;
1110
1111 return 0 unless (ref $a) eq (ref $b);
1112
1113 if ("HASH" eq ref $a) {
1114 my @ka = keys %$a;
1115 my @kb = keys %$b;
1116
1117 return 0 if @ka != @kb;
1118
1119 for (0 .. $#ka) {
1120 return 0 unless $ka[$_] eq $kb[$_];
1121 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1122 }
1123
1124 } elsif ("ARRAY" eq ref $a) {
1125
1126 return 0 if @$a != @$b;
1127
1128 for (0 .. $#$a) {
1129 return 0 unless _object_equal $a->[$_], $b->[$_];
1130 }
1131
1132 } elsif ($a ne $b) {
1133 return 0;
1134 }
1135
1136 1
1137}
1138
1139our $SLOW_MERGES;#d#
1140sub _can_merge {
453 my ($obj, $data) = @_; 1141 my ($ob1, $ob2) = @_;
454 1142
455 $data = from_json $data; 1143 ++$SLOW_MERGES;#d#
456 1144
457 for (@$data) { 1145 # we do the slow way here
458 my ($name, $args) = @$_; 1146 return _object_equal $ob1, $ob2
459
460 $obj->attach ($name, %{$args || {} });
461 }
462} 1147}
463 1148
464# basically do the same as instantiate, without calling instantiate
465sub reattach { 1149sub reattach {
1150 # basically do the same as instantiate, without calling instantiate
466 my ($obj) = @_; 1151 my ($obj) = @_;
1152
1153 # no longer needed after getting rid of delete_package?
1154 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1155
467 my $registry = $obj->registry; 1156 my $registry = $obj->registry;
468 1157
469 @$registry = (); 1158 @$registry = ();
470 1159
471 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 1160 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
… …
475 for (@$attach) { 1164 for (@$attach) {
476 my ($klass, @attach) = @$_; 1165 my ($klass, @attach) = @$_;
477 _attach $registry, $klass, @attach; 1166 _attach $registry, $klass, @attach;
478 } 1167 }
479 } else { 1168 } else {
480 warn "object uses attachment '$name' that is not available, postponing.\n"; 1169 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 } 1170 }
505
506 rename "$filename~", $filename;
507 } else {
508 warn "FATAL: $filename~: $!\n";
509 }
510 } else {
511 unlink $filename;
512 unlink "$filename.pst";
513 } 1171 }
514} 1172}
515 1173
516sub object_freezer_as_string { 1174cf::attachable->attach (
517 my ($rdata, $objs) = @_;
518
519 use Data::Dumper;
520
521 $$rdata . Dumper $objs
522}
523
524sub object_thawer_load {
525 my ($filename) = @_;
526
527 local $/;
528
529 my $av;
530
531 #TODO: use sysread etc.
532 if (open my $data, "<:raw:perlio", $filename) {
533 $data = <$data>;
534 if (open my $pst, "<:raw:perlio", "$filename.pst") {
535 $av = eval { (Storable::thaw <$pst>)->{objs} };
536 }
537 return ($data, $av);
538 }
539
540 ()
541}
542
543cf::object->attach (
544 prio => -1000000, 1175 prio => -1000000,
1176 on_instantiate => sub {
1177 my ($obj, $data) = @_;
1178
1179 $data = decode_json $data;
1180
1181 for (@$data) {
1182 my ($name, $args) = @$_;
1183
1184 $obj->attach ($name, %{$args || {} });
1185 }
1186 },
1187 on_reattach => \&reattach,
545 on_clone => sub { 1188 on_clone => sub {
546 my ($src, $dst) = @_; 1189 my ($src, $dst) = @_;
547 1190
548 @{$dst->registry} = @{$src->registry}; 1191 @{$dst->registry} = @{$src->registry};
549 1192
… …
552 %{$dst->{_attachment}} = %{$src->{_attachment}} 1195 %{$dst->{_attachment}} = %{$src->{_attachment}}
553 if exists $src->{_attachment}; 1196 if exists $src->{_attachment};
554 }, 1197 },
555); 1198);
556 1199
1200sub object_freezer_save {
1201 my ($filename, $rdata, $objs) = @_;
1202
1203 sync_job {
1204 if (length $$rdata) {
1205 utf8::decode (my $decname = $filename);
1206 trace sprintf "saving %s (%d,%d)\n",
1207 $decname, length $$rdata, scalar @$objs
1208 if $VERBOSE_IO;
1209
1210 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1211 aio_chmod $fh, SAVE_MODE;
1212 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1213 if ($cf::USE_FSYNC) {
1214 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1215 aio_fsync $fh;
1216 }
1217 aio_close $fh;
1218
1219 if (@$objs) {
1220 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1221 aio_chmod $fh, SAVE_MODE;
1222 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1223 aio_write $fh, 0, (length $data), $data, 0;
1224 if ($cf::USE_FSYNC) {
1225 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1226 aio_fsync $fh;
1227 }
1228 aio_close $fh;
1229 aio_rename "$filename.pst~", "$filename.pst";
1230 }
1231 } else {
1232 aio_unlink "$filename.pst";
1233 }
1234
1235 aio_rename "$filename~", $filename;
1236
1237 $filename =~ s%/[^/]+$%%;
1238 aio_pathsync $filename if $cf::USE_FSYNC;
1239 } else {
1240 error "unable to save objects: $filename~: $!\n";
1241 }
1242 } else {
1243 aio_unlink $filename;
1244 aio_unlink "$filename.pst";
1245 }
1246 };
1247}
1248
1249sub object_freezer_as_string {
1250 my ($rdata, $objs) = @_;
1251
1252 use Data::Dumper;
1253
1254 $$rdata . Dumper $objs
1255}
1256
1257sub object_thawer_load {
1258 my ($filename) = @_;
1259
1260 my ($data, $av);
1261
1262 (aio_load $filename, $data) >= 0
1263 or return;
1264
1265 unless (aio_stat "$filename.pst") {
1266 (aio_load "$filename.pst", $av) >= 0
1267 or return;
1268
1269 my $st = eval { Coro::Storable::thaw $av };
1270 $av = $st->{objs};
1271 }
1272
1273 utf8::decode (my $decname = $filename);
1274 trace sprintf "loading %s (%d,%d)\n",
1275 $decname, length $data, scalar @{$av || []}
1276 if $VERBOSE_IO;
1277
1278 ($data, $av)
1279}
1280
1281=head2 COMMAND CALLBACKS
1282
1283=over 4
1284
1285=cut
1286
557############################################################################# 1287#############################################################################
558# command handling &c 1288# command handling &c
559 1289
560=item cf::register_command $name => \&callback($ob,$args); 1290=item cf::register_command $name => \&callback($ob,$args);
561 1291
… …
573 push @{ $COMMAND{$name} }, [$caller, $cb]; 1303 push @{ $COMMAND{$name} }, [$caller, $cb];
574} 1304}
575 1305
576=item cf::register_extcmd $name => \&callback($pl,$packet); 1306=item cf::register_extcmd $name => \&callback($pl,$packet);
577 1307
578Register a callbackf ro execution when the client sends an extcmd packet. 1308Register a callback for execution when the client sends an (synchronous)
1309extcmd packet. Ext commands will be processed in the order they are
1310received by the server, like other user commands. The first argument is
1311the logged-in player. Ext commands can only be processed after a player
1312has logged in successfully.
579 1313
580If the callback returns something, it is sent back as if reply was being 1314If the callback returns something, it is sent back as if reply was being
581called. 1315called.
582 1316
1317=item cf::register_exticmd $name => \&callback($ns,$packet);
1318
1319Register a callback for execution when the client sends an (asynchronous)
1320exticmd packet. Exti commands are processed by the server as soon as they
1321are received, i.e. out of order w.r.t. other commands. The first argument
1322is a client socket. Exti commands can be received anytime, even before
1323log-in.
1324
1325If the callback returns something, it is sent back as if reply was being
1326called.
1327
583=cut 1328=cut
584 1329
585sub register_extcmd { 1330sub register_extcmd {
586 my ($name, $cb) = @_; 1331 my ($name, $cb) = @_;
587 1332
588 my $caller = caller;
589 #warn "registering extcmd '$name' to '$caller'";
590
591 $EXTCMD{$name} = [$cb, $caller]; 1333 $EXTCMD{$name} = $cb;
592} 1334}
1335
1336sub register_exticmd {
1337 my ($name, $cb) = @_;
1338
1339 $EXTICMD{$name} = $cb;
1340}
1341
1342use File::Glob ();
593 1343
594cf::player->attach ( 1344cf::player->attach (
595 on_command => sub { 1345 on_unknown_command => sub {
596 my ($pl, $name, $params) = @_; 1346 my ($pl, $name, $params) = @_;
597 1347
598 my $cb = $COMMAND{$name} 1348 my $cb = $COMMAND{$name}
599 or return; 1349 or return;
600 1350
… …
605 cf::override; 1355 cf::override;
606 }, 1356 },
607 on_extcmd => sub { 1357 on_extcmd => sub {
608 my ($pl, $buf) = @_; 1358 my ($pl, $buf) = @_;
609 1359
610 my $msg = eval { from_json $buf }; 1360 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
611 1361
612 if (ref $msg) { 1362 if (ref $msg) {
1363 my ($type, $reply, @payload) =
1364 "ARRAY" eq ref $msg
1365 ? @$msg
1366 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1367
1368 my @reply;
1369
613 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1370 if (my $cb = $EXTCMD{$type}) {
614 if (my %reply = $cb->[0]->($pl, $msg)) { 1371 @reply = $cb->($pl, @payload);
615 $pl->ext_reply ($msg->{msgid}, %reply);
616 }
617 } 1372 }
1373
1374 $pl->ext_reply ($reply, @reply)
1375 if $reply;
1376
618 } else { 1377 } else {
619 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1378 error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
620 } 1379 }
621 1380
622 cf::override; 1381 cf::override;
623 }, 1382 },
624); 1383);
625 1384
626sub register { 1385# "readahead" all extensions
627 my ($base, $pkg) = @_;
628
629 #TODO
630}
631
632sub load_extension { 1386sub cache_extensions {
633 my ($path) = @_; 1387 my $grp = IO::AIO::aio_group;
634 1388
635 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1389 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
636 my $base = $1; 1390 for (grep /\.ext$/, @{$_[0]}) {
637 my $pkg = $1; 1391 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 } 1392 }
685 } 1393 };
686 1394
687 # remove extcmds 1395 $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} 1396}
701 1397
702sub load_extensions { 1398sub load_extensions {
1399 info "loading extensions...";
1400
1401 cf::sync_job {
1402 my %todo;
1403
703 for my $ext (<$LIBDIR/*.ext>) { 1404 for my $path (<$LIBDIR/*.ext>) {
704 next unless -r $ext; 1405 next unless -r $path;
705 eval { 1406
706 load_extension $ext; 1407 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1408 my $base = $1;
1409 my $pkg = $1;
1410 $pkg =~ s/[^[:word:]]/_/g;
1411 $pkg = "ext::$pkg";
1412
1413 open my $fh, "<:utf8", $path
1414 or die "$path: $!";
1415
1416 my $source = do { local $/; <$fh> };
1417
1418 my %ext = (
1419 path => $path,
1420 base => $base,
1421 pkg => $pkg,
1422 );
1423
1424 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1425 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1426
1427 $ext{source} =
1428 "package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
1429 . "#line 1 \"$path\"\n{\n"
1430 . $source
1431 . "\n};\n1";
1432
1433 $todo{$base} = \%ext;
1434 }
1435
1436 my $pass = 0;
1437 my %done;
1438 while (%todo) {
1439 my $progress;
1440
1441 ++$pass;
1442
1443 ext:
1444 while (my ($k, $v) = each %todo) {
1445 for (split /,\s*/, $v->{meta}{depends}) {
1446 next ext
1447 unless exists $done{$_};
1448 }
1449
1450 trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1451
1452 my $active = eval $v->{source};
1453
1454 if (length $@) {
1455 error "$v->{path}: $@\n";
1456
1457 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1458 if exists $v->{meta}{mandatory};
1459
1460 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1461 delete $todo{$k};
1462 } else {
1463 $done{$k} = delete $todo{$k};
1464 push @EXTS, $v->{pkg};
1465 $progress = 1;
1466
1467 info "$v->{base}: extension inactive.\n"
1468 unless $active;
1469 }
707 1 1470 }
708 } or warn "$ext not loaded: $@"; 1471
1472 unless ($progress) {
1473 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1474
1475 while (my ($k, $v) = each %todo) {
1476 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1477 if exists $v->{meta}{mandatory};
1478 }
1479 }
1480 }
709 } 1481 };
710} 1482}
711 1483
712############################################################################# 1484#############################################################################
713# load/save/clean perl data associated with a map
714 1485
715*cf::mapsupport::on_clean = sub { 1486=back
1487
1488=head2 CORE EXTENSIONS
1489
1490Functions and methods that extend core deliantra objects.
1491
1492=cut
1493
1494package cf::player;
1495
1496use Coro::AIO;
1497
1498=head3 cf::player
1499
1500=over 4
1501
1502=item cf::player::num_playing
1503
1504Returns the official number of playing players, as per the Crossfire metaserver rules.
1505
1506=cut
1507
1508sub num_playing {
1509 scalar grep
1510 $_->ob->map
1511 && !$_->hidden
1512 && !$_->ob->flag (cf::FLAG_WIZ),
1513 cf::player::list
1514}
1515
1516=item cf::player::find $login
1517
1518Returns the given player object, loading it if necessary (might block).
1519
1520=cut
1521
1522sub playerdir($) {
1523 "$PLAYERDIR/"
1524 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1525}
1526
1527sub path($) {
1528 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1529
1530 (playerdir $login) . "/playerdata"
1531}
1532
1533sub find_active($) {
1534 $cf::PLAYER{$_[0]}
1535 and $cf::PLAYER{$_[0]}->active
1536 and $cf::PLAYER{$_[0]}
1537}
1538
1539sub exists($) {
716 my ($map) = @_; 1540 my ($login) = @_;
717 1541
718 my $path = $map->tmpname; 1542 $cf::PLAYER{$login}
719 defined $path or return; 1543 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 ($_->inv), @_
731} 1544}
732 1545
733# TODO: compatibility cruft, remove when no longer needed 1546sub find($) {
1547 return $cf::PLAYER{$_[0]} || do {
1548 my $login = $_[0];
1549
1550 my $guard = cf::lock_acquire "user_find:$login";
1551
1552 $cf::PLAYER{$_[0]} || do {
1553 # rename old playerfiles to new ones
1554 #TODO: remove when no longer required
1555 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1556 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1557 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1558 aio_unlink +(playerdir $login) . "/$login.pl";
1559
1560 my $f = new_from_file cf::object::thawer path $login
1561 or return;
1562
1563 my $pl = cf::player::load_pl $f
1564 or return;
1565
1566 local $cf::PLAYER_LOADING{$login} = $pl;
1567 $f->resolve_delayed_derefs;
1568 $cf::PLAYER{$login} = $pl
1569 }
1570 }
1571}
1572
734cf::player->attach ( 1573cf::player->attach (
735 on_load => sub { 1574 on_load => sub {
736 my ($pl, $path) = @_; 1575 my ($pl, $path) = @_;
737 1576
738 for my $o (all_objects $pl->ob) { 1577 # restore slots saved in save, below
739 if (my $value = $o->get_ob_key_value ("_perl_data")) { 1578 my $slots = delete $pl->{_slots};
740 $o->set_ob_key_value ("_perl_data");
741 1579
742 %$o = %{ Storable::thaw pack "H*", $value }; 1580 $pl->ob->current_weapon ($slots->[0]);
743 } 1581 $pl->combat_ob ($slots->[1]);
744 } 1582 $pl->ranged_ob ($slots->[2]);
745 }, 1583 },
746); 1584);
747 1585
748############################################################################# 1586sub save($) {
1587 my ($pl) = @_;
749 1588
750=head2 CORE EXTENSIONS 1589 return if $pl->{deny_save};
751 1590
752Functions and methods that extend core crossfire objects. 1591 my $path = path $pl;
1592 my $guard = cf::lock_acquire "user_save:$path";
753 1593
754=head3 cf::player 1594 return if $pl->{deny_save};
1595
1596 aio_mkdir playerdir $pl, 0770;
1597 $pl->{last_save} = $cf::RUNTIME;
1598
1599 cf::get_slot 0.01;
1600
1601 # save slots, to be restored later
1602 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1603
1604 $pl->save_pl ($path);
1605 cf::cede_to_tick;
1606}
1607
1608sub new($) {
1609 my ($login) = @_;
1610
1611 my $self = create;
1612
1613 $self->ob->name ($login);
1614 $self->{deny_save} = 1;
1615
1616 $cf::PLAYER{$login} = $self;
1617
1618 $self
1619}
1620
1621=item $player->send_msg ($channel, $msg, $color, [extra...])
1622
1623=cut
1624
1625sub send_msg {
1626 my $ns = shift->ns
1627 or return;
1628 $ns->send_msg (@_);
1629}
1630
1631=item $pl->quit_character
1632
1633Nukes the player without looking back. If logged in, the connection will
1634be destroyed. May block for a long time.
1635
1636=cut
1637
1638sub quit_character {
1639 my ($pl) = @_;
1640
1641 my $name = $pl->ob->name;
1642
1643 $pl->{deny_save} = 1;
1644 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1645
1646 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1647 $pl->deactivate;
1648 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1649 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1650 $pl->ns->destroy if $pl->ns;
1651
1652 my $path = playerdir $pl;
1653 my $temp = "$path~$cf::RUNTIME~deleting~";
1654 aio_rename $path, $temp;
1655 delete $cf::PLAYER{$pl->ob->name};
1656 $pl->destroy;
1657
1658 my $prefix = qr<^~\Q$name\E/>;
1659
1660 # nuke player maps
1661 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1662
1663 IO::AIO::aio_rmtree $temp;
1664}
1665
1666=item $pl->kick
1667
1668Kicks a player out of the game. This destroys the connection.
1669
1670=cut
1671
1672sub kick {
1673 my ($pl, $kicker) = @_;
1674
1675 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1676 $pl->killer ("kicked");
1677 $pl->ns->destroy;
1678}
1679
1680=item cf::player::list_logins
1681
1682Returns am arrayref of all valid playernames in the system, can take a
1683while and may block, so not sync_job-capable, ever.
1684
1685=cut
1686
1687sub list_logins {
1688 my $dirs = aio_readdir $PLAYERDIR
1689 or return [];
1690
1691 my @logins;
1692
1693 for my $login (@$dirs) {
1694 my $path = path $login;
1695
1696 # a .pst is a dead give-away for a valid player
1697 # if no pst file found, open and chekc for blocked users
1698 if (aio_stat "$path.pst") {
1699 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1700 aio_read $fh, 0, 512, my $buf, 0 or next;
1701 $buf !~ /^password -------------$/m or next; # official not-valid tag
1702 }
1703
1704 utf8::decode $login;
1705 push @logins, $login;
1706 }
1707
1708 \@logins
1709}
1710
1711=item $player->maps
1712
1713=item cf::player::maps $login
1714
1715Returns an arrayref of map paths that are private for this
1716player. May block.
1717
1718=cut
1719
1720sub maps($) {
1721 my ($pl) = @_;
1722
1723 $pl = ref $pl ? $pl->ob->name : $pl;
1724
1725 my $files = aio_readdir playerdir $pl
1726 or return;
1727
1728 my @paths;
1729
1730 for (@$files) {
1731 utf8::decode $_;
1732 next if /\.(?:pl|pst)$/;
1733 next unless /^$PATH_SEP/o;
1734
1735 push @paths, cf::map::normalise "~$pl/$_";
1736 }
1737
1738 \@paths
1739}
1740
1741=item $protocol_xml = $player->expand_cfpod ($cfpod)
1742
1743Expand deliantra pod fragments into protocol xml.
1744
1745=item $player->ext_reply ($msgid, @msg)
1746
1747Sends an ext reply to the player.
1748
1749=cut
1750
1751sub ext_reply($$@) {
1752 my ($self, $id, @msg) = @_;
1753
1754 $self->ns->ext_reply ($id, @msg)
1755}
1756
1757=item $player->ext_msg ($type, @msg)
1758
1759Sends an ext event to the client.
1760
1761=cut
1762
1763sub ext_msg($$@) {
1764 my ($self, $type, @msg) = @_;
1765
1766 $self->ns->ext_msg ($type, @msg);
1767}
1768
1769=head3 cf::region
755 1770
756=over 4 1771=over 4
757 1772
758=item cf::player::exists $login
759
760Returns true when the given account exists.
761
762=cut 1773=cut
763 1774
764sub cf::player::exists($) { 1775package 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 1776
769=item $player->ext_reply ($msgid, $msgtype, %msg) 1777=item cf::region::find_by_path $path
770 1778
771Sends an ext reply to the player. 1779Tries to decuce the likely region for a map knowing only its path.
772 1780
773=cut 1781=cut
774 1782
775sub cf::player::ext_reply($$$%) { 1783sub find_by_path($) {
1784 my ($path) = @_;
1785
1786 $path =~ s/^~[^\/]*//; # skip ~login
1787
1788 my ($match, $specificity);
1789
1790 for my $region (list) {
1791 if ($region->{match} && $path =~ $region->{match}) {
1792 ($match, $specificity) = ($region, $region->specificity)
1793 if $region->specificity > $specificity;
1794 }
1795 }
1796
1797 $match
1798}
1799
1800=back
1801
1802=head3 cf::map
1803
1804=over 4
1805
1806=cut
1807
1808package cf::map;
1809
1810use Fcntl;
1811use Coro::AIO;
1812
1813use overload
1814 '""' => \&as_string,
1815 fallback => 1;
1816
1817our $MAX_RESET = 3600;
1818our $DEFAULT_RESET = 3000;
1819
1820sub generate_random_map {
1821 my ($self, $rmp) = @_;
1822
1823 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1824
1825 # mit "rum" bekleckern, nicht
1826 $self->_create_random_map (
1827 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1828 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1829 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1830 $rmp->{exit_on_final_map},
1831 $rmp->{xsize}, $rmp->{ysize},
1832 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1833 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1834 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1835 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1836 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1837 (cf::region::find $rmp->{region}), $rmp->{custom}
1838 )
1839}
1840
1841=item cf::map->register ($regex, $prio)
1842
1843Register a handler for the map path matching the given regex at the
1844givne priority (higher is better, built-in handlers have priority 0, the
1845default).
1846
1847=cut
1848
1849sub register {
1850 my (undef, $regex, $prio) = @_;
1851 my $pkg = caller;
1852
1853 no strict;
1854 push @{"$pkg\::ISA"}, __PACKAGE__;
1855
1856 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1857}
1858
1859# also paths starting with '/'
1860$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1861
1862sub thawer_merge {
776 my ($self, $id, %msg) = @_; 1863 my ($self, $merge) = @_;
777 1864
778 $msg{msgid} = $id; 1865 # we have to keep some variables in memory intact
1866 local $self->{path};
1867 local $self->{load_path};
779 1868
780 $self->send ("ext " . to_json \%msg); 1869 $self->SUPER::thawer_merge ($merge);
781} 1870}
1871
1872sub normalise {
1873 my ($path, $base) = @_;
1874
1875 $path = "$path"; # make sure its a string
1876
1877 $path =~ s/\.map$//;
1878
1879 # map plan:
1880 #
1881 # /! non-realised random map exit (special hack!)
1882 # {... are special paths that are not being touched
1883 # ?xxx/... are special absolute paths
1884 # ?random/... random maps
1885 # /... normal maps
1886 # ~user/... per-player map of a specific user
1887
1888 $path =~ s/$PATH_SEP/\//go;
1889
1890 # treat it as relative path if it starts with
1891 # something that looks reasonable
1892 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1893 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1894
1895 $base =~ s{[^/]+/?$}{};
1896 $path = "$base/$path";
1897 }
1898
1899 for ($path) {
1900 redo if s{//}{/};
1901 redo if s{/\.?/}{/};
1902 redo if s{/[^/]+/\.\./}{/};
1903 }
1904
1905 $path
1906}
1907
1908sub new_from_path {
1909 my (undef, $path, $base) = @_;
1910
1911 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1912
1913 $path = normalise $path, $base;
1914
1915 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1916 if ($path =~ $EXT_MAP{$pkg}[1]) {
1917 my $self = bless cf::map::new, $pkg;
1918 $self->{path} = $path; $self->path ($path);
1919 $self->init; # pass $1 etc.
1920 return $self;
1921 }
1922 }
1923
1924 Carp::cluck "unable to resolve path '$path' (base '$base').";
1925 ()
1926}
1927
1928sub init {
1929 my ($self) = @_;
1930
1931 $self
1932}
1933
1934sub as_string {
1935 my ($self) = @_;
1936
1937 "$self->{path}"
1938}
1939
1940# the displayed name, this is a one way mapping
1941sub visible_name {
1942 &as_string
1943}
1944
1945# the original (read-only) location
1946sub load_path {
1947 my ($self) = @_;
1948
1949 "$MAPDIR/$self->{path}.map"
1950}
1951
1952# the temporary/swap location
1953sub save_path {
1954 my ($self) = @_;
1955
1956 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1957 "$TMPDIR/$path.map"
1958}
1959
1960# the unique path, undef == no special unique path
1961sub uniq_path {
1962 my ($self) = @_;
1963
1964 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1965 "$UNIQUEDIR/$path"
1966}
1967
1968sub decay_objects {
1969 my ($self) = @_;
1970
1971 return if $self->{deny_reset};
1972
1973 $self->do_decay_objects;
1974}
1975
1976sub unlink_save {
1977 my ($self) = @_;
1978
1979 utf8::encode (my $save = $self->save_path);
1980 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1981 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1982}
1983
1984sub load_header_from($) {
1985 my ($self, $path) = @_;
1986
1987 utf8::encode $path;
1988 my $f = new_from_file cf::object::thawer $path
1989 or return;
1990
1991 $self->_load_header ($f)
1992 or return;
1993
1994 local $MAP_LOADING{$self->{path}} = $self;
1995 $f->resolve_delayed_derefs;
1996
1997 $self->{load_path} = $path;
1998
1999 1
2000}
2001
2002sub load_header_orig {
2003 my ($self) = @_;
2004
2005 $self->load_header_from ($self->load_path)
2006}
2007
2008sub load_header_temp {
2009 my ($self) = @_;
2010
2011 $self->load_header_from ($self->save_path)
2012}
2013
2014sub prepare_temp {
2015 my ($self) = @_;
2016
2017 $self->last_access ((delete $self->{last_access})
2018 || $cf::RUNTIME); #d#
2019 # safety
2020 $self->{instantiate_time} = $cf::RUNTIME
2021 if $self->{instantiate_time} > $cf::RUNTIME;
2022}
2023
2024sub prepare_orig {
2025 my ($self) = @_;
2026
2027 $self->{load_original} = 1;
2028 $self->{instantiate_time} = $cf::RUNTIME;
2029 $self->last_access ($cf::RUNTIME);
2030 $self->instantiate;
2031}
2032
2033sub load_header {
2034 my ($self) = @_;
2035
2036 if ($self->load_header_temp) {
2037 $self->prepare_temp;
2038 } else {
2039 $self->load_header_orig
2040 or return;
2041 $self->prepare_orig;
2042 }
2043
2044 $self->{deny_reset} = 1
2045 if $self->no_reset;
2046
2047 $self->default_region (cf::region::find_by_path $self->{path})
2048 unless $self->default_region;
2049
2050 1
2051}
2052
2053sub find;
2054sub find {
2055 my ($path, $origin) = @_;
2056
2057 $path = normalise $path, $origin && $origin->path;
2058
2059 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2060 my $guard2 = cf::lock_acquire "map_find:$path";
2061
2062 $cf::MAP{$path} || do {
2063 my $map = new_from_path cf::map $path
2064 or return;
2065
2066 $map->{last_save} = $cf::RUNTIME;
2067
2068 $map->load_header
2069 or return;
2070
2071 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2072 # doing this can freeze the server in a sync job, obviously
2073 #$cf::WAIT_FOR_TICK->wait;
2074 undef $guard2;
2075 undef $guard1;
2076 $map->reset;
2077 return find $path;
2078 }
2079
2080 $cf::MAP{$path} = $map
2081 }
2082}
2083
2084sub pre_load { }
2085#sub post_load { } # XS
2086
2087sub load {
2088 my ($self) = @_;
2089
2090 local $self->{deny_reset} = 1; # loading can take a long time
2091
2092 my $path = $self->{path};
2093
2094 {
2095 my $guard = cf::lock_acquire "map_data:$path";
2096
2097 return unless $self->valid;
2098 return unless $self->in_memory == cf::MAP_SWAPPED;
2099
2100 $self->in_memory (cf::MAP_LOADING);
2101
2102 $self->alloc;
2103
2104 $self->pre_load;
2105 cf::cede_to_tick;
2106
2107 my $f = new_from_file cf::object::thawer $self->{load_path};
2108 $f->skip_block;
2109 $self->_load_objects ($f)
2110 or return;
2111
2112 $self->post_load_original
2113 if delete $self->{load_original};
2114
2115 if (my $uniq = $self->uniq_path) {
2116 utf8::encode $uniq;
2117 unless (aio_stat $uniq) {
2118 if (my $f = new_from_file cf::object::thawer $uniq) {
2119 $self->clear_unique_items;
2120 $self->_load_objects ($f);
2121 $f->resolve_delayed_derefs;
2122 }
2123 }
2124 }
2125
2126 $f->resolve_delayed_derefs;
2127
2128 cf::cede_to_tick;
2129 # now do the right thing for maps
2130 $self->link_multipart_objects;
2131 $self->difficulty ($self->estimate_difficulty)
2132 unless $self->difficulty;
2133 cf::cede_to_tick;
2134
2135 unless ($self->{deny_activate}) {
2136 $self->decay_objects;
2137 $self->fix_auto_apply;
2138 $self->update_buttons;
2139 cf::cede_to_tick;
2140 $self->activate;
2141 }
2142
2143 $self->{last_save} = $cf::RUNTIME;
2144 $self->last_access ($cf::RUNTIME);
2145
2146 $self->in_memory (cf::MAP_ACTIVE);
2147 }
2148
2149 $self->post_load;
2150}
2151
2152# customize the map for a given player, i.e.
2153# return the _real_ map. used by e.g. per-player
2154# maps to change the path to ~playername/mappath
2155sub customise_for {
2156 my ($self, $ob) = @_;
2157
2158 return find "~" . $ob->name . "/" . $self->{path}
2159 if $self->per_player;
2160
2161# return find "?party/" . $ob->name . "/" . $self->{path}
2162# if $self->per_party;
2163
2164 $self
2165}
2166
2167# find and load all maps in the 3x3 area around a map
2168sub load_neighbours {
2169 my ($map) = @_;
2170
2171 my @neigh; # diagonal neighbours
2172
2173 for (0 .. 3) {
2174 my $neigh = $map->tile_path ($_)
2175 or next;
2176 $neigh = find $neigh, $map
2177 or next;
2178 $neigh->load;
2179
2180 # now find the diagonal neighbours
2181 push @neigh,
2182 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2183 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2184 }
2185
2186 for (grep defined $_->[0], @neigh) {
2187 my ($path, $origin) = @$_;
2188 my $neigh = find $path, $origin
2189 or next;
2190 $neigh->load;
2191 }
2192}
2193
2194sub find_sync {
2195 my ($path, $origin) = @_;
2196
2197 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2198 if $Coro::current == $Coro::main;
2199
2200 find $path, $origin
2201}
2202
2203sub do_load_sync {
2204 my ($map) = @_;
2205
2206 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2207 if $Coro::current == $Coro::main;
2208
2209 $map->load;
2210}
2211
2212our %MAP_PREFETCH;
2213our $MAP_PREFETCHER = undef;
2214
2215sub find_async {
2216 my ($path, $origin, $load) = @_;
2217
2218 $path = normalise $path, $origin && $origin->{path};
2219
2220 if (my $map = $cf::MAP{$path}) {
2221 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2222 }
2223
2224 $MAP_PREFETCH{$path} |= $load;
2225
2226 $MAP_PREFETCHER ||= cf::async {
2227 $Coro::current->{desc} = "map prefetcher";
2228
2229 while (%MAP_PREFETCH) {
2230 while (my ($k, $v) = each %MAP_PREFETCH) {
2231 if (my $map = find $k) {
2232 $map->load if $v;
2233 }
2234
2235 delete $MAP_PREFETCH{$k};
2236 }
2237 }
2238 undef $MAP_PREFETCHER;
2239 };
2240 $MAP_PREFETCHER->prio (6);
2241
2242 ()
2243}
2244
2245# common code, used by both ->save and ->swapout
2246sub _save {
2247 my ($self) = @_;
2248
2249 $self->{last_save} = $cf::RUNTIME;
2250
2251 return unless $self->dirty;
2252
2253 my $save = $self->save_path; utf8::encode $save;
2254 my $uniq = $self->uniq_path; utf8::encode $uniq;
2255
2256 $self->{load_path} = $save;
2257
2258 return if $self->{deny_save};
2259
2260 local $self->{last_access} = $self->last_access;#d#
2261
2262 cf::async {
2263 $Coro::current->{desc} = "map player save";
2264 $_->contr->save for $self->players;
2265 };
2266
2267 cf::get_slot 0.02;
2268
2269 if ($uniq) {
2270 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2271 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2272 } else {
2273 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2274 }
2275}
2276
2277sub save {
2278 my ($self) = @_;
2279
2280 my $lock = cf::lock_acquire "map_data:$self->{path}";
2281
2282 $self->_save;
2283}
2284
2285sub swap_out {
2286 my ($self) = @_;
2287
2288 my $lock = cf::lock_acquire "map_data:$self->{path}";
2289
2290 return if $self->in_memory != cf::MAP_ACTIVE;
2291 return if $self->{deny_save};
2292 return if $self->players;
2293
2294 # first deactivate the map and "unlink" it from the core
2295 $self->deactivate;
2296 $_->clear_links_to ($self) for values %cf::MAP;
2297 $self->in_memory (cf::MAP_SWAPPED);
2298
2299 # then atomically save
2300 $self->_save;
2301
2302 # then free the map
2303 $self->clear;
2304}
2305
2306sub reset_at {
2307 my ($self) = @_;
2308
2309 # TODO: safety, remove and allow resettable per-player maps
2310 return 1e99 if $self->{deny_reset};
2311
2312 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2313 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2314
2315 $time + $to
2316}
2317
2318sub should_reset {
2319 my ($self) = @_;
2320
2321 $self->reset_at <= $cf::RUNTIME
2322}
2323
2324sub reset {
2325 my ($self) = @_;
2326
2327 my $lock = cf::lock_acquire "map_data:$self->{path}";
2328
2329 return if $self->players;
2330
2331 cf::trace "resetting map ", $self->path, "\n";
2332
2333 $self->in_memory (cf::MAP_SWAPPED);
2334
2335 # need to save uniques path
2336 unless ($self->{deny_save}) {
2337 my $uniq = $self->uniq_path; utf8::encode $uniq;
2338
2339 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2340 if $uniq;
2341 }
2342
2343 delete $cf::MAP{$self->path};
2344
2345 $self->deactivate;
2346 $_->clear_links_to ($self) for values %cf::MAP;
2347 $self->clear;
2348
2349 $self->unlink_save;
2350 $self->destroy;
2351}
2352
2353my $nuke_counter = "aaaa";
2354
2355sub nuke {
2356 my ($self) = @_;
2357
2358 {
2359 my $lock = cf::lock_acquire "map_data:$self->{path}";
2360
2361 delete $cf::MAP{$self->path};
2362
2363 $self->unlink_save;
2364
2365 bless $self, "cf::map::wrap";
2366 delete $self->{deny_reset};
2367 $self->{deny_save} = 1;
2368 $self->reset_timeout (1);
2369 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2370
2371 $cf::MAP{$self->path} = $self;
2372 }
2373
2374 $self->reset; # polite request, might not happen
2375}
2376
2377=item $maps = cf::map::tmp_maps
2378
2379Returns an arrayref with all map paths of currently instantiated and saved
2380maps. May block.
2381
2382=cut
2383
2384sub tmp_maps() {
2385 [
2386 map {
2387 utf8::decode $_;
2388 /\.map$/
2389 ? normalise $_
2390 : ()
2391 } @{ aio_readdir $TMPDIR or [] }
2392 ]
2393}
2394
2395=item $maps = cf::map::random_maps
2396
2397Returns an arrayref with all map paths of currently instantiated and saved
2398random maps. May block.
2399
2400=cut
2401
2402sub random_maps() {
2403 [
2404 map {
2405 utf8::decode $_;
2406 /\.map$/
2407 ? normalise "?random/$_"
2408 : ()
2409 } @{ aio_readdir $RANDOMDIR or [] }
2410 ]
2411}
2412
2413=item cf::map::unique_maps
2414
2415Returns an arrayref of paths of all shared maps that have
2416instantiated unique items. May block.
2417
2418=cut
2419
2420sub unique_maps() {
2421 [
2422 map {
2423 utf8::decode $_;
2424 s/\.map$//; # TODO future compatibility hack
2425 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2426 ? ()
2427 : normalise $_
2428 } @{ aio_readdir $UNIQUEDIR or [] }
2429 ]
2430}
2431
2432=item cf::map::static_maps
2433
2434Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2435file in the shared directory excluding F</styles> and F</editor>). May
2436block.
2437
2438=cut
2439
2440sub static_maps() {
2441 my @dirs = "";
2442 my @maps;
2443
2444 while (@dirs) {
2445 my $dir = shift @dirs;
2446
2447 next if $dir eq "/styles" || $dir eq "/editor";
2448
2449 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2450 or return;
2451
2452 for (@$files) {
2453 s/\.map$// or next;
2454 utf8::decode $_;
2455 push @maps, "$dir/$_";
2456 }
2457
2458 push @dirs, map "$dir/$_", @$dirs;
2459 }
2460
2461 \@maps
2462}
2463
2464=back
2465
2466=head3 cf::object
2467
2468=cut
2469
2470package cf::object;
2471
2472=over 4
2473
2474=item $ob->inv_recursive
2475
2476Returns the inventory of the object I<and> their inventories, recursively,
2477but I<not> the object itself.
2478
2479=cut
2480
2481sub inv_recursive_;
2482sub inv_recursive_ {
2483 map { $_, inv_recursive_ $_->inv } @_
2484}
2485
2486sub inv_recursive {
2487 inv_recursive_ inv $_[0]
2488}
2489
2490=item $ref = $ob->ref
2491
2492Creates and returns a persistent reference to an object that can be stored as a string.
2493
2494=item $ob = cf::object::deref ($refstring)
2495
2496returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2497even if the object actually exists. May block.
2498
2499=cut
2500
2501sub deref {
2502 my ($ref) = @_;
2503
2504 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2505 my ($uuid, $name) = ($1, $2);
2506 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2507 or return;
2508 $pl->ob->uuid eq $uuid
2509 or return;
2510
2511 $pl->ob
2512 } else {
2513 warn "$ref: cannot resolve object reference\n";
2514 undef
2515 }
2516}
2517
2518package cf;
782 2519
783=back 2520=back
784 2521
785=head3 cf::object::player 2522=head3 cf::object::player
786 2523
… …
791Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2528Sends 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 2529can be C<undef>. Does the right thing when the player is currently in a
793dialogue with the given NPC character. 2530dialogue with the given NPC character.
794 2531
795=cut 2532=cut
2533
2534our $SAY_CHANNEL = {
2535 id => "say",
2536 title => "Map",
2537 reply => "say ",
2538 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2539};
2540
2541our $CHAT_CHANNEL = {
2542 id => "chat",
2543 title => "Chat",
2544 reply => "chat ",
2545 tooltip => "Player chat and shouts, global to the server.",
2546};
796 2547
797# rough implementation of a future "reply" method that works 2548# rough implementation of a future "reply" method that works
798# with dialog boxes. 2549# with dialog boxes.
799#TODO: the first argument must go, split into a $npc->reply_to ( method 2550#TODO: the first argument must go, split into a $npc->reply_to ( method
800sub cf::object::player::reply($$$;$) { 2551sub cf::object::player::reply($$$;$) {
… …
802 2553
803 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2554 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
804 2555
805 if ($self->{record_replies}) { 2556 if ($self->{record_replies}) {
806 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2557 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2558
807 } else { 2559 } else {
2560 my $pl = $self->contr;
2561
2562 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2563 my $dialog = $pl->{npc_dialog};
2564 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2565
2566 } else {
808 $msg = $npc->name . " says: $msg" if $npc; 2567 $msg = $npc->name . " says: $msg" if $npc;
809 $self->message ($msg, $flags); 2568 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2569 }
810 } 2570 }
2571}
2572
2573=item $object->send_msg ($channel, $msg, $color, [extra...])
2574
2575=cut
2576
2577sub cf::object::send_msg {
2578 my $pl = shift->contr
2579 or return;
2580 $pl->send_msg (@_);
811} 2581}
812 2582
813=item $player_object->may ("access") 2583=item $player_object->may ("access")
814 2584
815Returns wether the given player is authorized to access resource "access" 2585Returns wether the given player is authorized to access resource "access"
… …
824 (ref $cf::CFG{"may_$access"} 2594 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 2595 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 2596 : $cf::CFG{"may_$access"})
827} 2597}
828 2598
2599=item $player_object->enter_link
2600
2601Freezes the player and moves him/her to a special map (C<{link}>).
2602
2603The player should be reasonably safe there for short amounts of time (e.g.
2604for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2605though, as the player cannot control the character while it is on the link
2606map.
2607
2608Will never block.
2609
2610=item $player_object->leave_link ($map, $x, $y)
2611
2612Moves the player out of the special C<{link}> map onto the specified
2613map. If the map is not valid (or omitted), the player will be moved back
2614to the location he/she was before the call to C<enter_link>, or, if that
2615fails, to the emergency map position.
2616
2617Might block.
2618
2619=cut
2620
2621sub link_map {
2622 unless ($LINK_MAP) {
2623 $LINK_MAP = cf::map::find "{link}"
2624 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2625 $LINK_MAP->load;
2626 }
2627
2628 $LINK_MAP
2629}
2630
2631sub cf::object::player::enter_link {
2632 my ($self) = @_;
2633
2634 $self->deactivate_recursive;
2635
2636 ++$self->{_link_recursion};
2637
2638 return if UNIVERSAL::isa $self->map, "ext::map_link";
2639
2640 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2641 if $self->map && $self->map->{path} ne "{link}";
2642
2643 $self->enter_map ($LINK_MAP || link_map, 3, 3);
2644}
2645
2646sub cf::object::player::leave_link {
2647 my ($self, $map, $x, $y) = @_;
2648
2649 return unless $self->contr->active;
2650
2651 my $link_pos = delete $self->{_link_pos};
2652
2653 unless ($map) {
2654 # restore original map position
2655 ($map, $x, $y) = @{ $link_pos || [] };
2656 $map = cf::map::find $map;
2657
2658 unless ($map) {
2659 ($map, $x, $y) = @$EMERGENCY_POSITION;
2660 $map = cf::map::find $map
2661 or die "FATAL: cannot load emergency map\n";
2662 }
2663 }
2664
2665 ($x, $y) = (-1, -1)
2666 unless (defined $x) && (defined $y);
2667
2668 # use -1 or undef as default coordinates, not 0, 0
2669 ($x, $y) = ($map->enter_x, $map->enter_y)
2670 if $x <= 0 && $y <= 0;
2671
2672 $map->load;
2673 $map->load_neighbours;
2674
2675 return unless $self->contr->active;
2676
2677 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2678 if ($self->enter_map ($map, $x, $y)) {
2679 # entering was successful
2680 delete $self->{_link_recursion};
2681 # only activate afterwards, to support waiting in hooks
2682 $self->activate_recursive;
2683 }
2684
2685}
2686
2687=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2688
2689Moves the player to the given map-path and coordinates by first freezing
2690her, loading and preparing them map, calling the provided $check callback
2691that has to return the map if sucecssful, and then unfreezes the player on
2692the new (success) or old (failed) map position. In either case, $done will
2693be called at the end of this process.
2694
2695Note that $check will be called with a potentially non-loaded map, so if
2696it needs a loaded map it has to call C<< ->load >>.
2697
2698=cut
2699
2700our $GOTOGEN;
2701
2702sub cf::object::player::goto {
2703 my ($self, $path, $x, $y, $check, $done) = @_;
2704
2705 if ($self->{_link_recursion} >= $MAX_LINKS) {
2706 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2707 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2708 ($path, $x, $y) = @$EMERGENCY_POSITION;
2709 }
2710
2711 # do generation counting so two concurrent goto's will be executed in-order
2712 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2713
2714 $self->enter_link;
2715
2716 (async {
2717 $Coro::current->{desc} = "player::goto $path $x $y";
2718
2719 # *tag paths override both path and x|y
2720 if ($path =~ /^\*(.*)$/) {
2721 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2722 my $ob = $obs[rand @obs];
2723
2724 # see if we actually can go there
2725 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2726 $ob = $obs[rand @obs];
2727 } else {
2728 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2729 }
2730 # else put us there anyways for now #d#
2731
2732 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2733 } else {
2734 ($path, $x, $y) = (undef, undef, undef);
2735 }
2736 }
2737
2738 my $map = eval {
2739 my $map = defined $path ? cf::map::find $path : undef;
2740
2741 if ($map) {
2742 $map = $map->customise_for ($self);
2743 $map = $check->($map, $x, $y, $self) if $check && $map;
2744 } else {
2745 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2746 }
2747
2748 $map
2749 };
2750
2751 if ($@) {
2752 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2753 LOG llevError | logBacktrace, Carp::longmess $@;
2754 }
2755
2756 if ($gen == $self->{_goto_generation}) {
2757 delete $self->{_goto_generation};
2758 $self->leave_link ($map, $x, $y);
2759 }
2760
2761 $done->($self) if $done;
2762 })->prio (1);
2763}
2764
2765=item $player_object->enter_exit ($exit_object)
2766
2767=cut
2768
2769sub parse_random_map_params {
2770 my ($spec) = @_;
2771
2772 my $rmp = { # defaults
2773 xsize => (cf::rndm 15, 40),
2774 ysize => (cf::rndm 15, 40),
2775 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2776 #layout => string,
2777 };
2778
2779 for (split /\n/, $spec) {
2780 my ($k, $v) = split /\s+/, $_, 2;
2781
2782 $rmp->{lc $k} = $v if (length $k) && (length $v);
2783 }
2784
2785 $rmp
2786}
2787
2788sub prepare_random_map {
2789 my ($exit) = @_;
2790
2791 # all this does is basically replace the /! path by
2792 # a new random map path (?random/...) with a seed
2793 # that depends on the exit object
2794
2795 my $rmp = parse_random_map_params $exit->msg;
2796
2797 if ($exit->map) {
2798 $rmp->{region} = $exit->region->name;
2799 $rmp->{origin_map} = $exit->map->path;
2800 $rmp->{origin_x} = $exit->x;
2801 $rmp->{origin_y} = $exit->y;
2802
2803 $exit->map->touch;
2804 }
2805
2806 $rmp->{random_seed} ||= $exit->random_seed;
2807
2808 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2809 my $md5 = Digest::MD5::md5_hex $data;
2810 my $meta = "$RANDOMDIR/$md5.meta";
2811
2812 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2813 aio_write $fh, 0, (length $data), $data, 0;
2814 undef $fh;
2815 aio_rename "$meta~", $meta;
2816
2817 my $slaying = "?random/$md5";
2818
2819 if ($exit->valid) {
2820 $exit->slaying ("?random/$md5");
2821 $exit->msg (undef);
2822 }
2823 }
2824}
2825
2826sub cf::object::player::enter_exit {
2827 my ($self, $exit) = @_;
2828
2829 return unless $self->type == cf::PLAYER;
2830
2831 $self->enter_link;
2832
2833 (async {
2834 $Coro::current->{desc} = "enter_exit";
2835
2836 unless (eval {
2837 $self->deactivate_recursive; # just to be sure
2838
2839 # random map handling
2840 {
2841 my $guard = cf::lock_acquire "exit_prepare:$exit";
2842
2843 prepare_random_map $exit
2844 if $exit->slaying eq "/!";
2845 }
2846
2847 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2848 my $x = $exit->stats->hp;
2849 my $y = $exit->stats->sp;
2850
2851 $self->goto ($map, $x, $y);
2852
2853 # if exit is damned, update players death & WoR home-position
2854 $self->contr->savebed ($map, $x, $y)
2855 if $exit->flag (cf::FLAG_DAMNED);
2856
2857 1
2858 }) {
2859 $self->message ("Something went wrong deep within the deliantra server. "
2860 . "I'll try to bring you back to the map you were before. "
2861 . "Please report this to the dungeon master!",
2862 cf::NDI_UNIQUE | cf::NDI_RED);
2863
2864 error "ERROR in enter_exit: $@";
2865 $self->leave_link;
2866 }
2867 })->prio (1);
2868}
2869
829=head3 cf::client 2870=head3 cf::client
830 2871
831=over 4 2872=over 4
832 2873
833=item $client->send_drawinfo ($text, $flags) 2874=item $client->send_drawinfo ($text, $flags)
… …
839 2880
840sub cf::client::send_drawinfo { 2881sub cf::client::send_drawinfo {
841 my ($self, $text, $flags) = @_; 2882 my ($self, $text, $flags) = @_;
842 2883
843 utf8::encode $text; 2884 utf8::encode $text;
844 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2885 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845} 2886}
846 2887
2888=item $client->send_big_packet ($pkt)
2889
2890Like C<send_packet>, but tries to compress large packets, and fragments
2891them as required.
2892
2893=cut
2894
2895our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2896
2897sub cf::client::send_big_packet {
2898 my ($self, $pkt) = @_;
2899
2900 # try lzf for large packets
2901 $pkt = "lzf " . Compress::LZF::compress $pkt
2902 if 1024 <= length $pkt and $self->{can_lzf};
2903
2904 # split very large packets
2905 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2906 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2907 $pkt = "frag";
2908 }
2909
2910 $self->send_packet ($pkt);
2911}
2912
2913=item $client->send_msg ($channel, $msg, $color, [extra...])
2914
2915Send a drawinfo or msg packet to the client, formatting the msg for the
2916client if neccessary. C<$type> should be a string identifying the type of
2917the message, with C<log> being the default. If C<$color> is negative, suppress
2918the message unless the client supports the msg packet.
2919
2920=cut
2921
2922# non-persistent channels (usually the info channel)
2923our %CHANNEL = (
2924 "c/motd" => {
2925 id => "infobox",
2926 title => "MOTD",
2927 reply => undef,
2928 tooltip => "The message of the day",
2929 },
2930 "c/identify" => {
2931 id => "infobox",
2932 title => "Identify",
2933 reply => undef,
2934 tooltip => "Items recently identified",
2935 },
2936 "c/examine" => {
2937 id => "infobox",
2938 title => "Examine",
2939 reply => undef,
2940 tooltip => "Signs and other items you examined",
2941 },
2942 "c/shopinfo" => {
2943 id => "infobox",
2944 title => "Shop Info",
2945 reply => undef,
2946 tooltip => "What your bargaining skill tells you about the shop",
2947 },
2948 "c/book" => {
2949 id => "infobox",
2950 title => "Book",
2951 reply => undef,
2952 tooltip => "The contents of a note or book",
2953 },
2954 "c/lookat" => {
2955 id => "infobox",
2956 title => "Look",
2957 reply => undef,
2958 tooltip => "What you saw there",
2959 },
2960 "c/who" => {
2961 id => "infobox",
2962 title => "Players",
2963 reply => undef,
2964 tooltip => "Shows players who are currently online",
2965 },
2966 "c/body" => {
2967 id => "infobox",
2968 title => "Body Parts",
2969 reply => undef,
2970 tooltip => "Shows which body parts you posess and are available",
2971 },
2972 "c/statistics" => {
2973 id => "infobox",
2974 title => "Statistics",
2975 reply => undef,
2976 tooltip => "Shows your primary statistics",
2977 },
2978 "c/skills" => {
2979 id => "infobox",
2980 title => "Skills",
2981 reply => undef,
2982 tooltip => "Shows your experience per skill and item power",
2983 },
2984 "c/shopitems" => {
2985 id => "infobox",
2986 title => "Shop Items",
2987 reply => undef,
2988 tooltip => "Shows the items currently for sale in this shop",
2989 },
2990 "c/resistances" => {
2991 id => "infobox",
2992 title => "Resistances",
2993 reply => undef,
2994 tooltip => "Shows your resistances",
2995 },
2996 "c/pets" => {
2997 id => "infobox",
2998 title => "Pets",
2999 reply => undef,
3000 tooltip => "Shows information abotu your pets/a specific pet",
3001 },
3002 "c/perceiveself" => {
3003 id => "infobox",
3004 title => "Perceive Self",
3005 reply => undef,
3006 tooltip => "You gained detailed knowledge about yourself",
3007 },
3008 "c/uptime" => {
3009 id => "infobox",
3010 title => "Uptime",
3011 reply => undef,
3012 tooltip => "How long the server has been running since last restart",
3013 },
3014 "c/mapinfo" => {
3015 id => "infobox",
3016 title => "Map Info",
3017 reply => undef,
3018 tooltip => "Information related to the maps",
3019 },
3020 "c/party" => {
3021 id => "party",
3022 title => "Party",
3023 reply => "gsay ",
3024 tooltip => "Messages and chat related to your party",
3025 },
3026 "c/death" => {
3027 id => "death",
3028 title => "Death",
3029 reply => undef,
3030 tooltip => "Reason for and more info about your most recent death",
3031 },
3032 "c/say" => $SAY_CHANNEL,
3033 "c/chat" => $CHAT_CHANNEL,
3034);
3035
3036sub cf::client::send_msg {
3037 my ($self, $channel, $msg, $color, @extra) = @_;
3038
3039 $msg = $self->pl->expand_cfpod ($msg)
3040 unless $color & cf::NDI_VERBATIM;
3041
3042 $color &= cf::NDI_CLIENT_MASK; # just in case...
3043
3044 # check predefined channels, for the benefit of C
3045 if ($CHANNEL{$channel}) {
3046 $channel = $CHANNEL{$channel};
3047
3048 $self->ext_msg (channel_info => $channel);
3049 $channel = $channel->{id};
3050
3051 } elsif (ref $channel) {
3052 # send meta info to client, if not yet sent
3053 unless (exists $self->{channel}{$channel->{id}}) {
3054 $self->{channel}{$channel->{id}} = $channel;
3055 $self->ext_msg (channel_info => $channel);
3056 }
3057
3058 $channel = $channel->{id};
3059 }
3060
3061 return unless @extra || length $msg;
3062
3063 # default colour, mask it out
3064 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3065 if $color & cf::NDI_DEF;
3066
3067 my $pkt = "msg "
3068 . $self->{json_coder}->encode (
3069 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3070 );
3071
3072 $self->send_big_packet ($pkt);
3073}
3074
3075=item $client->ext_msg ($type, @msg)
3076
3077Sends an ext event to the client.
3078
3079=cut
3080
3081sub cf::client::ext_msg($$@) {
3082 my ($self, $type, @msg) = @_;
3083
3084 if ($self->extcmd == 2) {
3085 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3086 } elsif ($self->extcmd == 1) { # TODO: remove
3087 push @msg, msgtype => "event_$type";
3088 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3089 }
3090}
3091
3092=item $client->ext_reply ($msgid, @msg)
3093
3094Sends an ext reply to the client.
3095
3096=cut
3097
3098sub cf::client::ext_reply($$@) {
3099 my ($self, $id, @msg) = @_;
3100
3101 if ($self->extcmd == 2) {
3102 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
3103 } elsif ($self->extcmd == 1) {
3104 #TODO: version 1, remove
3105 unshift @msg, msgtype => "reply", msgid => $id;
3106 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3107 }
3108}
847 3109
848=item $success = $client->query ($flags, "text", \&cb) 3110=item $success = $client->query ($flags, "text", \&cb)
849 3111
850Queues a query to the client, calling the given callback with 3112Queues a query to the client, calling the given callback with
851the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 3113the 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>. 3114C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
853 3115
854Queries can fail, so check the return code. Or don't, as queries will become 3116Queries can fail, so check the return code. Or don't, as queries will
855reliable at some point in the future. 3117become reliable at some point in the future.
856 3118
857=cut 3119=cut
858 3120
859sub cf::client::query { 3121sub cf::client::query {
860 my ($self, $flags, $text, $cb) = @_; 3122 my ($self, $flags, $text, $cb) = @_;
… …
868 utf8::encode $text; 3130 utf8::encode $text;
869 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 3131 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
870 3132
871 $self->send_packet ($self->{query_queue}[0][0]) 3133 $self->send_packet ($self->{query_queue}[0][0])
872 if @{ $self->{query_queue} } == 1; 3134 if @{ $self->{query_queue} } == 1;
3135
3136 1
873} 3137}
874 3138
875cf::client->attach ( 3139cf::client->attach (
3140 on_connect => sub {
3141 my ($ns) = @_;
3142
3143 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3144 },
876 on_reply => sub { 3145 on_reply => sub {
877 my ($ns, $msg) = @_; 3146 my ($ns, $msg) = @_;
878 3147
879 # this weird shuffling is so that direct followup queries 3148 # this weird shuffling is so that direct followup queries
880 # get handled first 3149 # get handled first
881 my $queue = delete $ns->{query_queue}; 3150 my $queue = delete $ns->{query_queue}
3151 or return; # be conservative, not sure how that can happen, but we saw a crash here
882 3152
883 (shift @$queue)->[1]->($msg); 3153 (shift @$queue)->[1]->($msg);
3154 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884 3155
885 push @{ $ns->{query_queue} }, @$queue; 3156 push @{ $ns->{query_queue} }, @$queue;
886 3157
887 if (@{ $ns->{query_queue} } == @$queue) { 3158 if (@{ $ns->{query_queue} } == @$queue) {
888 if (@$queue) { 3159 if (@$queue) {
889 $ns->send_packet ($ns->{query_queue}[0][0]); 3160 $ns->send_packet ($ns->{query_queue}[0][0]);
890 } else { 3161 } else {
891 $ns->state (ST_PLAYING); 3162 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892 } 3163 }
893 } 3164 }
3165 },
3166 on_exticmd => sub {
3167 my ($ns, $buf) = @_;
3168
3169 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3170
3171 if (ref $msg) {
3172 my ($type, $reply, @payload) =
3173 "ARRAY" eq ref $msg
3174 ? @$msg
3175 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3176
3177 my @reply;
3178
3179 if (my $cb = $EXTICMD{$type}) {
3180 @reply = $cb->($ns, @payload);
3181 }
3182
3183 $ns->ext_reply ($reply, @reply)
3184 if $reply;
3185
3186 } else {
3187 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3188 }
3189
3190 cf::override;
894 }, 3191 },
895); 3192);
896 3193
897=item $client->coro (\&cb) 3194=item $client->async (\&cb)
898 3195
899Create a new coroutine, running the specified callback. The coroutine will 3196Create a new coroutine, running the specified callback. The coroutine will
900be automatically cancelled when the client gets destroyed (e.g. on logout, 3197be automatically cancelled when the client gets destroyed (e.g. on logout,
901or loss of connection). 3198or loss of connection).
902 3199
903=cut 3200=cut
904 3201
905sub cf::client::coro { 3202sub cf::client::async {
906 my ($self, $cb) = @_; 3203 my ($self, $cb) = @_;
907 3204
908 my $coro; $coro = async { 3205 my $coro = &Coro::async ($cb);
909 eval { 3206
910 $cb->(); 3207 $coro->on_destroy (sub {
911 };
912 warn $@ if $@;
913 delete $self->{_coro}{$coro+0}; 3208 delete $self->{_coro}{$coro+0};
914 }; 3209 });
915 3210
916 $self->{_coro}{$coro+0} = $coro; 3211 $self->{_coro}{$coro+0} = $coro;
3212
3213 $coro
917} 3214}
918 3215
919cf::client->attach ( 3216cf::client->attach (
920 on_destroy => sub { 3217 on_client_destroy => sub {
921 my ($ns) = @_; 3218 my ($ns) = @_;
922 3219
923 $_->cancel for values %{ (delete $ns->{_coro}) || {} }; 3220 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
924 }, 3221 },
925); 3222);
… …
940our $safe = new Safe "safe"; 3237our $safe = new Safe "safe";
941our $safe_hole = new Safe::Hole; 3238our $safe_hole = new Safe::Hole;
942 3239
943$SIG{FPE} = 'IGNORE'; 3240$SIG{FPE} = 'IGNORE';
944 3241
945$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3242$safe->permit_only (Opcode::opset qw(
3243 :base_core :base_mem :base_orig :base_math :base_loop
3244 grepstart grepwhile mapstart mapwhile
3245 sort time
3246));
946 3247
947# here we export the classes and methods available to script code 3248# here we export the classes and methods available to script code
948 3249
949=pod 3250=pod
950 3251
951The following fucntions and emthods are available within a safe environment: 3252The following functions and methods are available within a safe environment:
952 3253
953 cf::object contr pay_amount pay_player map 3254 cf::object
3255 contr pay_amount pay_player map x y force_find force_add destroy
3256 insert remove name archname title slaying race decrease split
3257 value
3258
954 cf::object::player player 3259 cf::object::player
955 cf::player peaceful 3260 player
956 cf::map trigger 3261
3262 cf::player
3263 peaceful
3264
3265 cf::map
3266 trigger
957 3267
958=cut 3268=cut
959 3269
960for ( 3270for (
961 ["cf::object" => qw(contr pay_amount pay_player map)], 3271 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3272 insert remove inv nrof name archname title slaying race
3273 decrease split destroy change_exp value msg lore send_msg)],
962 ["cf::object::player" => qw(player)], 3274 ["cf::object::player" => qw(player)],
963 ["cf::player" => qw(peaceful)], 3275 ["cf::player" => qw(peaceful send_msg)],
964 ["cf::map" => qw(trigger)], 3276 ["cf::map" => qw(trigger)],
965) { 3277) {
966 no strict 'refs'; 3278 no strict 'refs';
967 my ($pkg, @funs) = @$_; 3279 my ($pkg, @funs) = @$_;
968 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3280 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
… …
986 3298
987 my $qcode = $code; 3299 my $qcode = $code;
988 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3300 $qcode =~ s/"/‟/g; # not allowed in #line filenames
989 $qcode =~ s/\n/\\n/g; 3301 $qcode =~ s/\n/\\n/g;
990 3302
3303 %vars = (_dummy => 0) unless %vars;
3304
3305 my @res;
991 local $_; 3306 local $_;
992 local @safe::cf::_safe_eval_args = values %vars;
993 3307
994 my $eval = 3308 my $eval =
995 "do {\n" 3309 "do {\n"
996 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3310 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
997 . "#line 0 \"{$qcode}\"\n" 3311 . "#line 0 \"{$qcode}\"\n"
998 . $code 3312 . $code
999 . "\n}" 3313 . "\n}"
1000 ; 3314 ;
1001 3315
3316 if ($CFG{safe_eval}) {
1002 sub_generation_inc; 3317 sub_generation_inc;
3318 local @safe::cf::_safe_eval_args = values %vars;
1003 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3319 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1004 sub_generation_inc; 3320 sub_generation_inc;
3321 } else {
3322 local @cf::_safe_eval_args = values %vars;
3323 @res = wantarray ? eval eval : scalar eval $eval;
3324 }
1005 3325
1006 if ($@) { 3326 if ($@) {
1007 warn "$@"; 3327 warn "$@",
1008 warn "while executing safe code '$code'\n"; 3328 "while executing safe code '$code'\n",
1009 warn "with arguments " . (join " ", %vars) . "\n"; 3329 "with arguments " . (join " ", %vars) . "\n";
1010 } 3330 }
1011 3331
1012 wantarray ? @res : $res[0] 3332 wantarray ? @res : $res[0]
1013} 3333}
1014 3334
… …
1028=cut 3348=cut
1029 3349
1030sub register_script_function { 3350sub register_script_function {
1031 my ($fun, $cb) = @_; 3351 my ($fun, $cb) = @_;
1032 3352
1033 no strict 'refs'; 3353 $fun = "safe::$fun" if $CFG{safe_eval};
1034 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3354 *$fun = $safe_hole->wrap ($cb);
1035} 3355}
1036 3356
1037=back 3357=back
1038 3358
1039=cut 3359=cut
1040 3360
1041############################################################################# 3361#############################################################################
3362# the server's init and main functions
1042 3363
1043=head2 EXTENSION DATABASE SUPPORT 3364sub load_facedata($) {
3365 my ($path) = @_;
1044 3366
1045Crossfire maintains a very simple database for extension use. It can 3367 # HACK to clear player env face cache, we need some signal framework
1046currently store anything that can be serialised using Storable, which 3368 # for this (global event?)
1047excludes objects. 3369 %ext::player_env::MUSIC_FACE_CACHE = ();
1048 3370
1049The parameter C<$family> should best start with the name of the extension 3371 my $enc = JSON::XS->new->utf8->canonical->relaxed;
1050using it, it should be unique.
1051 3372
1052=over 4 3373 trace "loading facedata from $path\n";
1053 3374
1054=item $hashref = cf::db_get $family 3375 my $facedata;
3376 0 < aio_load $path, $facedata
3377 or die "$path: $!";
1055 3378
1056Return a hashref for use by the extension C<$family>, which can be 3379 $facedata = Coro::Storable::thaw $facedata;
1057modified. After modifications, you have to call C<cf::db_dirty> or
1058C<cf::db_sync>.
1059 3380
1060=item $value = cf::db_get $family => $key 3381 $facedata->{version} == 2
3382 or cf::cleanup "$path: version mismatch, cannot proceed.";
1061 3383
1062Returns a single value from the database 3384 # patch in the exptable
3385 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3386 $facedata->{resource}{"res/exp_table"} = {
3387 type => FT_RSRC,
3388 data => $exp_table,
3389 hash => (Digest::MD5::md5 $exp_table),
3390 };
3391 cf::cede_to_tick;
1063 3392
1064=item cf::db_put $family => $hashref 3393 {
3394 my $faces = $facedata->{faceinfo};
1065 3395
1066Stores the given family hashref into the database. Updates are delayed, if 3396 while (my ($face, $info) = each %$faces) {
1067you want the data to be synced to disk immediately, use C<cf::db_sync>. 3397 my $idx = (cf::face::find $face) || cf::face::alloc $face;
1068 3398
1069=item cf::db_put $family => $key => $value 3399 cf::face::set_visibility $idx, $info->{visibility};
3400 cf::face::set_magicmap $idx, $info->{magicmap};
3401 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3402 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1070 3403
1071Stores the given C<$value> in the family hash. Updates are delayed, if you 3404 cf::cede_to_tick;
1072want the data to be synced to disk immediately, use C<cf::db_sync>. 3405 }
1073 3406
1074=item cf::db_dirty 3407 while (my ($face, $info) = each %$faces) {
3408 next unless $info->{smooth};
1075 3409
1076Marks the database as dirty, to be updated at a later time. 3410 my $idx = cf::face::find $face
3411 or next;
1077 3412
1078=item cf::db_sync 3413 if (my $smooth = cf::face::find $info->{smooth}) {
3414 cf::face::set_smooth $idx, $smooth;
3415 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3416 } else {
3417 error "smooth face '$info->{smooth}' not found for face '$face'";
3418 }
1079 3419
1080Immediately write the database to disk I<if it is dirty>. 3420 cf::cede_to_tick;
3421 }
3422 }
1081 3423
1082=cut 3424 {
3425 my $anims = $facedata->{animinfo};
1083 3426
1084our $DB; 3427 while (my ($anim, $info) = each %$anims) {
3428 cf::anim::set $anim, $info->{frames}, $info->{facings};
3429 cf::cede_to_tick;
3430 }
3431
3432 cf::anim::invalidate_all; # d'oh
3433 }
3434
3435 {
3436 my $res = $facedata->{resource};
3437
3438 while (my ($name, $info) = each %$res) {
3439 if (defined $info->{type}) {
3440 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3441
3442 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3443 cf::face::set_type $idx, $info->{type};
3444 } else {
3445 $RESOURCE{$name} = $info; # unused
3446 }
3447
3448 cf::cede_to_tick;
3449 }
3450 }
3451
3452 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3453
3454 1
3455}
3456
3457register_exticmd fx_want => sub {
3458 my ($ns, $want) = @_;
3459
3460 while (my ($k, $v) = each %$want) {
3461 $ns->fx_want ($k, $v);
3462 }
3463};
3464
3465sub load_resource_file($) {
3466 my $guard = lock_acquire "load_resource_file";
3467
3468 my $status = load_resource_file_ $_[0];
3469 get_slot 0.1, 100;
3470 cf::arch::commit_load;
3471
3472 $status
3473}
3474
3475sub reload_regions {
3476 # HACK to clear player env face cache, we need some signal framework
3477 # for this (global event?)
3478 %ext::player_env::MUSIC_FACE_CACHE = ();
3479
3480 load_resource_file "$MAPDIR/regions"
3481 or die "unable to load regions file\n";
3482
3483 for (cf::region::list) {
3484 $_->{match} = qr/$_->{match}/
3485 if exists $_->{match};
3486 }
3487}
3488
3489sub reload_facedata {
3490 load_facedata "$DATADIR/facedata"
3491 or die "unable to load facedata\n";
3492}
3493
3494sub reload_archetypes {
3495 load_resource_file "$DATADIR/archetypes"
3496 or die "unable to load archetypes\n";
3497}
3498
3499sub reload_treasures {
3500 load_resource_file "$DATADIR/treasures"
3501 or die "unable to load treasurelists\n";
3502}
3503
3504sub reload_sound {
3505 trace "loading sound config from $DATADIR/sound\n";
3506
3507 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3508 or die "$DATADIR/sound $!";
3509
3510 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3511
3512 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3513 my $sound = $soundconf->{compat}[$_]
3514 or next;
3515
3516 my $face = cf::face::find "sound/$sound->[1]";
3517 cf::sound::set $sound->[0] => $face;
3518 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3519 }
3520
3521 while (my ($k, $v) = each %{$soundconf->{event}}) {
3522 my $face = cf::face::find "sound/$v";
3523 cf::sound::set $k => $face;
3524 }
3525}
3526
3527sub reload_resources {
3528 trace "reloading resource files...\n";
3529
3530 reload_facedata;
3531 reload_sound;
3532 reload_archetypes;
3533 reload_regions;
3534 reload_treasures;
3535
3536 trace "finished reloading resource files\n";
3537}
3538
3539sub reload_config {
3540 trace "reloading config file...\n";
3541
3542 open my $fh, "<:utf8", "$CONFDIR/config"
3543 or return;
3544
3545 local $/;
3546 *CFG = YAML::XS::Load scalar <$fh>;
3547
3548 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
3549
3550 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3551 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3552
3553 if (exists $CFG{mlockall}) {
3554 eval {
3555 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3556 and die "WARNING: m(un)lockall failed: $!\n";
3557 };
3558 warn $@ if $@;
3559 }
3560
3561 trace "finished reloading resource files\n";
3562}
3563
3564sub pidfile() {
3565 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3566 or die "$PIDFILE: $!";
3567 flock $fh, &Fcntl::LOCK_EX
3568 or die "$PIDFILE: flock: $!";
3569 $fh
3570}
3571
3572# make sure only one server instance is running at any one time
3573sub atomic {
3574 my $fh = pidfile;
3575
3576 my $pid = <$fh>;
3577 kill 9, $pid if $pid > 0;
3578
3579 seek $fh, 0, 0;
3580 print $fh $$;
3581}
3582
3583sub main_loop {
3584 trace "EV::loop starting\n";
3585 if (1) {
3586 EV::loop;
3587 }
3588 trace "EV::loop returned\n";
3589 goto &main_loop unless $REALLY_UNLOOP;
3590}
3591
3592sub main {
3593 cf::init_globals; # initialise logging
3594
3595 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3596 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3597 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3598 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3599
3600 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3601
3602 # we must not ever block the main coroutine
3603 local $Coro::idle = sub {
3604 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3605 (async {
3606 $Coro::current->{desc} = "IDLE BUG HANDLER";
3607 EV::loop EV::LOOP_ONESHOT;
3608 })->prio (Coro::PRIO_MAX);
3609 };
3610
3611 evthread_start IO::AIO::poll_fileno;
3612
3613 cf::sync_job {
3614 cf::init_experience;
3615 cf::init_anim;
3616 cf::init_attackmess;
3617 cf::init_dynamic;
3618
3619 cf::load_settings;
3620 cf::load_materials;
3621
3622 reload_resources;
3623 reload_config;
3624 db_init;
3625
3626 cf::init_uuid;
3627 cf::init_signals;
3628 cf::init_skills;
3629
3630 cf::init_beforeplay;
3631
3632 atomic;
3633
3634 load_extensions;
3635
3636 utime time, time, $RUNTIMEFILE;
3637
3638 # no (long-running) fork's whatsoever before this point(!)
3639 use POSIX ();
3640 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3641
3642 (pop @POST_INIT)->(0) while @POST_INIT;
3643 };
3644
3645 cf::object::thawer::errors_are_fatal 0;
3646 info "parse errors in files are no longer fatal from this point on.\n";
3647
3648 main_loop;
3649}
3650
3651#############################################################################
3652# initialisation and cleanup
3653
3654# install some emergency cleanup handlers
3655BEGIN {
3656 our %SIGWATCHER = ();
3657 for my $signal (qw(INT HUP TERM)) {
3658 $SIGWATCHER{$signal} = AE::signal $signal, sub {
3659 cf::cleanup "SIG$signal";
3660 };
3661 }
3662}
3663
3664sub write_runtime_sync {
3665 my $t0 = AE::time;
3666
3667 # first touch the runtime file to show we are still running:
3668 # the fsync below can take a very very long time.
3669
3670 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3671
3672 my $guard = cf::lock_acquire "write_runtime";
3673
3674 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3675 or return;
3676
3677 my $value = $cf::RUNTIME + 90 + 10;
3678 # 10 is the runtime save interval, for a monotonic clock
3679 # 60 allows for the watchdog to kill the server.
3680
3681 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3682 and return;
3683
3684 # always fsync - this file is important
3685 aio_fsync $fh
3686 and return;
3687
3688 # touch it again to show we are up-to-date
3689 aio_utime $fh, undef, undef;
3690
3691 close $fh
3692 or return;
3693
3694 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3695 and return;
3696
3697 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3698
3699 1
3700}
3701
3702our $uuid_lock;
3703our $uuid_skip;
3704
3705sub write_uuid_sync($) {
3706 $uuid_skip ||= $_[0];
3707
3708 return if $uuid_lock;
3709 local $uuid_lock = 1;
3710
3711 my $uuid = "$LOCALDIR/uuid";
3712
3713 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3714 or return;
3715
3716 my $value = uuid_seq uuid_cur;
3717
3718 unless ($value) {
3719 info "cowardly refusing to write zero uuid value!\n";
3720 return;
3721 }
3722
3723 my $value = uuid_str $value + $uuid_skip;
3724 $uuid_skip = 0;
3725
3726 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3727 and return;
3728
3729 # always fsync - this file is important
3730 aio_fsync $fh
3731 and return;
3732
3733 close $fh
3734 or return;
3735
3736 aio_rename "$uuid~", $uuid
3737 and return;
3738
3739 trace "uuid file written ($value).\n";
3740
3741 1
3742
3743}
3744
3745sub write_uuid($$) {
3746 my ($skip, $sync) = @_;
3747
3748 $sync ? write_uuid_sync $skip
3749 : async { write_uuid_sync $skip };
3750}
3751
3752sub emergency_save() {
3753 my $freeze_guard = cf::freeze_mainloop;
3754
3755 info "emergency_perl_save: enter\n";
3756
3757 # this is a trade-off: we want to be very quick here, so
3758 # save all maps without fsync, and later call a global sync
3759 # (which in turn might be very very slow)
3760 local $USE_FSYNC = 0;
3761
3762 cf::sync_job {
3763 cf::write_runtime_sync; # external watchdog should not bark
3764
3765 # use a peculiar iteration method to avoid tripping on perl
3766 # refcount bugs in for. also avoids problems with players
3767 # and maps saved/destroyed asynchronously.
3768 info "emergency_perl_save: begin player save\n";
3769 for my $login (keys %cf::PLAYER) {
3770 my $pl = $cf::PLAYER{$login} or next;
3771 $pl->valid or next;
3772 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3773 $pl->save;
3774 }
3775 info "emergency_perl_save: end player save\n";
3776
3777 cf::write_runtime_sync; # external watchdog should not bark
3778
3779 info "emergency_perl_save: begin map save\n";
3780 for my $path (keys %cf::MAP) {
3781 my $map = $cf::MAP{$path} or next;
3782 $map->valid or next;
3783 $map->save;
3784 }
3785 info "emergency_perl_save: end map save\n";
3786
3787 cf::write_runtime_sync; # external watchdog should not bark
3788
3789 info "emergency_perl_save: begin database checkpoint\n";
3790 BDB::db_env_txn_checkpoint $DB_ENV;
3791 info "emergency_perl_save: end database checkpoint\n";
3792
3793 info "emergency_perl_save: begin write uuid\n";
3794 write_uuid_sync 1;
3795 info "emergency_perl_save: end write uuid\n";
3796
3797 cf::write_runtime_sync; # external watchdog should not bark
3798
3799 trace "emergency_perl_save: syncing database to disk";
3800 BDB::db_env_txn_checkpoint $DB_ENV;
3801
3802 info "emergency_perl_save: starting sync\n";
3803 IO::AIO::aio_sync sub {
3804 info "emergency_perl_save: finished sync\n";
3805 };
3806
3807 cf::write_runtime_sync; # external watchdog should not bark
3808
3809 trace "emergency_perl_save: flushing outstanding aio requests";
3810 while (IO::AIO::nreqs || BDB::nreqs) {
3811 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3812 }
3813
3814 cf::write_runtime_sync; # external watchdog should not bark
3815 };
3816
3817 info "emergency_perl_save: leave\n";
3818}
3819
3820sub post_cleanup {
3821 my ($make_core) = @_;
3822
3823 IO::AIO::flush;
3824
3825 IO::AIO::flush;
3826
3827 error Carp::longmess "post_cleanup backtrace"
3828 if $make_core;
3829
3830 my $fh = pidfile;
3831 unlink $PIDFILE if <$fh> == $$;
3832}
3833
3834# a safer delete_package, copied from Symbol
3835sub clear_package($) {
3836 my $pkg = shift;
3837
3838 # expand to full symbol table name if needed
3839 unless ($pkg =~ /^main::.*::$/) {
3840 $pkg = "main$pkg" if $pkg =~ /^::/;
3841 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3842 $pkg .= '::' unless $pkg =~ /::$/;
3843 }
3844
3845 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3846 my $stem_symtab = *{$stem}{HASH};
3847
3848 defined $stem_symtab and exists $stem_symtab->{$leaf}
3849 or return;
3850
3851 # clear all symbols
3852 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3853 for my $name (keys %$leaf_symtab) {
3854 _gv_clear *{"$pkg$name"};
3855# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3856 }
3857}
3858
3859sub do_reload_perl() {
3860 # can/must only be called in main
3861 if (in_main) {
3862 error "can only reload from main coroutine";
3863 return;
3864 }
3865
3866 return if $RELOAD++;
3867
3868 my $t1 = AE::time;
3869
3870 while ($RELOAD) {
3871 info "reloading...";
3872
3873 trace "entering sync_job";
3874
3875 cf::sync_job {
3876 cf::emergency_save;
3877
3878 trace "cancelling all extension coros";
3879 $_->cancel for values %EXT_CORO;
3880 %EXT_CORO = ();
3881
3882 trace "removing commands";
3883 %COMMAND = ();
3884
3885 trace "removing ext/exti commands";
3886 %EXTCMD = ();
3887 %EXTICMD = ();
3888
3889 trace "unloading/nuking all extensions";
3890 for my $pkg (@EXTS) {
3891 trace "... unloading $pkg";
3892
3893 if (my $cb = $pkg->can ("unload")) {
3894 eval {
3895 $cb->($pkg);
3896 1
3897 } or error "$pkg unloaded, but with errors: $@";
3898 }
3899
3900 trace "... clearing $pkg";
3901 clear_package $pkg;
3902 }
3903
3904 trace "unloading all perl modules loaded from $LIBDIR";
3905 while (my ($k, $v) = each %INC) {
3906 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3907
3908 trace "... unloading $k";
3909 delete $INC{$k};
3910
3911 $k =~ s/\.pm$//;
3912 $k =~ s/\//::/g;
3913
3914 if (my $cb = $k->can ("unload_module")) {
3915 $cb->();
3916 }
3917
3918 clear_package $k;
3919 }
3920
3921 trace "getting rid of safe::, as good as possible";
3922 clear_package "safe::$_"
3923 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3924
3925 trace "unloading cf.pm \"a bit\"";
3926 delete $INC{"cf.pm"};
3927 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3928
3929 # don't, removes xs symbols, too,
3930 # and global variables created in xs
3931 #clear_package __PACKAGE__;
3932
3933 info "unload completed, starting to reload now";
3934
3935 trace "reloading cf.pm";
3936 require cf;
3937 cf::_connect_to_perl_1;
3938
3939 trace "loading config and database again";
3940 cf::reload_config;
3941
3942 trace "loading extensions";
3943 cf::load_extensions;
3944
3945 if ($REATTACH_ON_RELOAD) {
3946 trace "reattaching attachments to objects/players";
3947 _global_reattach; # objects, sockets
3948 trace "reattaching attachments to maps";
3949 reattach $_ for values %MAP;
3950 trace "reattaching attachments to players";
3951 reattach $_ for values %PLAYER;
3952 }
3953
3954 trace "running post_init jobs";
3955 (pop @POST_INIT)->(1) while @POST_INIT;
3956
3957 trace "leaving sync_job";
3958
3959 1
3960 } or do {
3961 error $@;
3962 cf::cleanup "error while reloading, exiting.";
3963 };
3964
3965 info "reloaded";
3966 --$RELOAD;
3967 }
3968
3969 $t1 = AE::time - $t1;
3970 info "reload completed in ${t1}s\n";
3971};
3972
3973our $RELOAD_WATCHER; # used only during reload
3974
3975sub reload_perl() {
3976 # doing reload synchronously and two reloads happen back-to-back,
3977 # coro crashes during coro_state_free->destroy here.
3978
3979 $RELOAD_WATCHER ||= cf::async {
3980 Coro::AIO::aio_wait cache_extensions;
3981
3982 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
3983 do_reload_perl;
3984 undef $RELOAD_WATCHER;
3985 };
3986 };
3987}
3988
3989register_command "reload" => sub {
3990 my ($who, $arg) = @_;
3991
3992 if ($who->flag (FLAG_WIZ)) {
3993 $who->message ("reloading server.");
3994 async {
3995 $Coro::current->{desc} = "perl_reload";
3996 reload_perl;
3997 };
3998 }
3999};
4000
4001unshift @INC, $LIBDIR;
4002
4003my $bug_warning = 0;
4004
4005our @WAIT_FOR_TICK;
4006our @WAIT_FOR_TICK_BEGIN;
4007
4008sub wait_for_tick {
4009 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4010
4011 my $signal = new Coro::Signal;
4012 push @WAIT_FOR_TICK, $signal;
4013 $signal->wait;
4014}
4015
4016sub wait_for_tick_begin {
4017 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4018
4019 my $signal = new Coro::Signal;
4020 push @WAIT_FOR_TICK_BEGIN, $signal;
4021 $signal->wait;
4022}
4023
4024sub tick {
4025 if ($Coro::current != $Coro::main) {
4026 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
4027 unless ++$bug_warning > 10;
4028 return;
4029 }
4030
4031 cf::server_tick; # one server iteration
4032
4033 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
4034
4035 if ($NOW >= $NEXT_RUNTIME_WRITE) {
4036 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
4037 Coro::async_pool {
4038 $Coro::current->{desc} = "runtime saver";
4039 write_runtime_sync
4040 or error "ERROR: unable to write runtime file: $!";
4041 };
4042 }
4043
4044 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4045 $sig->send;
4046 }
4047 while (my $sig = shift @WAIT_FOR_TICK) {
4048 $sig->send;
4049 }
4050
4051 $LOAD = ($NOW - $TICK_START) / $TICK;
4052 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4053
4054 if (0) {
4055 if ($NEXT_TICK) {
4056 my $jitter = $TICK_START - $NEXT_TICK;
4057 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4058 debug "jitter $JITTER\n";#d#
4059 }
4060 }
4061}
1085 4062
1086{ 4063{
1087 my $path = cf::localdir . "/database.pst"; 4064 # configure BDB
1088 4065
1089 sub db_load() { 4066 BDB::min_parallel 16;
1090 warn "loading database $path\n";#d# remove later 4067 BDB::max_poll_reqs $TICK * 0.1;
1091 $DB = stat $path ? Storable::retrieve $path : { }; 4068 $AnyEvent::BDB::WATCHER->priority (1);
1092 }
1093 4069
1094 my $pid; 4070 unless ($DB_ENV) {
4071 $DB_ENV = BDB::db_env_create;
4072 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4073 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4074 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4075 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4076 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1095 4077
1096 sub db_save() { 4078 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 { 4079 eval {
1133 $DB->{$_[0]} = $_[1]; 4080 BDB::db_env_open
1134 } 4081 $DB_ENV,
1135 db_dirty; 4082 $BDBDIR,
1136 } 4083 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
4084 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
4085 0666;
1137 4086
1138 cf::global->attach ( 4087 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 } 4088 };
1197 4089
1198 Symbol::delete_package $k; 4090 cf::cleanup "db_env_open(db): $@" if $@;
1199 } 4091 };
4092 }
1200 4093
1201 # sync database to disk 4094 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1202 cf::db_sync; 4095 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 }; 4096 };
1234 $msg->($@) if $@; 4097 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1235 4098 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 }; 4099 };
4100 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4101 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4102 };
1244} 4103}
1245 4104
1246register "<global>", __PACKAGE__; 4105{
4106 # configure IO::AIO
1247 4107
1248register_command "perl-reload" => sub { 4108 IO::AIO::min_parallel 8;
4109 IO::AIO::max_poll_time $TICK * 0.1;
4110 undef $AnyEvent::AIO::WATCHER;
4111}
4112
4113my $_log_backtrace;
4114
4115sub _log_backtrace {
1249 my ($who, $arg) = @_; 4116 my ($msg, @addr) = @_;
1250 4117
1251 if ($who->flag (FLAG_WIZ)) { 4118 $msg =~ s/\n//;
1252 _perl_reload { 4119
1253 warn $_[0]; 4120 # limit the # of concurrent backtraces
1254 $who->message ($_[0]); 4121 if ($_log_backtrace < 2) {
4122 ++$_log_backtrace;
4123 my $perl_bt = Carp::longmess $msg;
4124 async {
4125 $Coro::current->{desc} = "abt $msg";
4126
4127 my @bt = fork_call {
4128 @addr = map { sprintf "%x", $_ } @addr;
4129 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4130 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4131 or die "addr2line: $!";
4132
4133 my @funcs;
4134 my @res = <$fh>;
4135 chomp for @res;
4136 while (@res) {
4137 my ($func, $line) = splice @res, 0, 2, ();
4138 push @funcs, "[$func] $line";
4139 }
4140
4141 @funcs
4142 };
4143
4144 LOG llevInfo, "[ABT] $perl_bt\n";
4145 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4146 LOG llevInfo, "[ABT] $_\n" for @bt;
4147 --$_log_backtrace;
1255 }; 4148 };
1256 } 4149 } else {
1257}; 4150 LOG llevInfo, "[ABT] $msg\n";
1258 4151 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 }, 4152 }
1277); 4153}
1278 4154
1279IO::AIO::max_poll_time $TICK * 0.2; 4155# load additional modules
4156require "cf/$_.pm" for @EXTRA_MODULES;
4157cf::_connect_to_perl_2;
1280 4158
1281Event->io (fd => IO::AIO::poll_fileno, 4159END { cf::emergency_save }
1282 poll => 'r',
1283 prio => 5,
1284 data => WF_AUTOCANCEL,
1285 cb => \&IO::AIO::poll_cb);
1286 4160
12871 41611
1288 4162

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