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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 1.538 by root, Tue May 4 21:45:43 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 $pkg; use common::sense;\n"
1429 . "#line 1 \"$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 undef $@; # work around perl 5.10.0 utf-8 caching bug
1457
1458 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1459 if exists $v->{meta}{mandatory};
1460
1461 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1462 delete $todo{$k};
1463 } else {
1464 $done{$k} = delete $todo{$k};
1465 push @EXTS, $v->{pkg};
1466 $progress = 1;
1467
1468 info "$v->{base}: extension inactive.\n"
1469 unless $active;
1470 }
707 1 1471 }
708 } or warn "$ext not loaded: $@"; 1472
1473 unless ($progress) {
1474 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1475
1476 while (my ($k, $v) = each %todo) {
1477 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1478 if exists $v->{meta}{mandatory};
1479 }
1480 }
1481 }
709 } 1482 };
710} 1483}
711 1484
712############################################################################# 1485#############################################################################
713# load/save/clean perl data associated with a map
714 1486
715*cf::mapsupport::on_clean = sub { 1487=back
1488
1489=head2 CORE EXTENSIONS
1490
1491Functions and methods that extend core deliantra objects.
1492
1493=cut
1494
1495package cf::player;
1496
1497use Coro::AIO;
1498
1499=head3 cf::player
1500
1501=over 4
1502
1503=item cf::player::num_playing
1504
1505Returns the official number of playing players, as per the Crossfire metaserver rules.
1506
1507=cut
1508
1509sub num_playing {
1510 scalar grep
1511 $_->ob->map
1512 && !$_->hidden
1513 && !$_->ob->flag (cf::FLAG_WIZ),
1514 cf::player::list
1515}
1516
1517=item cf::player::find $login
1518
1519Returns the given player object, loading it if necessary (might block).
1520
1521=cut
1522
1523sub playerdir($) {
1524 "$PLAYERDIR/"
1525 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1526}
1527
1528sub path($) {
1529 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1530
1531 (playerdir $login) . "/playerdata"
1532}
1533
1534sub find_active($) {
1535 $cf::PLAYER{$_[0]}
1536 and $cf::PLAYER{$_[0]}->active
1537 and $cf::PLAYER{$_[0]}
1538}
1539
1540sub exists($) {
716 my ($map) = @_; 1541 my ($login) = @_;
717 1542
718 my $path = $map->tmpname; 1543 $cf::PLAYER{$login}
719 defined $path or return; 1544 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 ($_->inv), @_
731} 1545}
732 1546
733# TODO: compatibility cruft, remove when no longer needed 1547sub find($) {
1548 return $cf::PLAYER{$_[0]} || do {
1549 my $login = $_[0];
1550
1551 my $guard = cf::lock_acquire "user_find:$login";
1552
1553 $cf::PLAYER{$_[0]} || do {
1554 # rename old playerfiles to new ones
1555 #TODO: remove when no longer required
1556 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1557 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1558 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1559 aio_unlink +(playerdir $login) . "/$login.pl";
1560
1561 my $f = new_from_file cf::object::thawer path $login
1562 or return;
1563
1564 my $pl = cf::player::load_pl $f
1565 or return;
1566
1567 local $cf::PLAYER_LOADING{$login} = $pl;
1568 $f->resolve_delayed_derefs;
1569 $cf::PLAYER{$login} = $pl
1570 }
1571 }
1572}
1573
734cf::player->attach ( 1574cf::player->attach (
735 on_load => sub { 1575 on_load => sub {
736 my ($pl, $path) = @_; 1576 my ($pl, $path) = @_;
737 1577
738 for my $o (all_objects $pl->ob) { 1578 # restore slots saved in save, below
739 if (my $value = $o->get_ob_key_value ("_perl_data")) { 1579 my $slots = delete $pl->{_slots};
740 $o->set_ob_key_value ("_perl_data");
741 1580
742 %$o = %{ Storable::thaw pack "H*", $value }; 1581 $pl->ob->current_weapon ($slots->[0]);
743 } 1582 $pl->combat_ob ($slots->[1]);
744 } 1583 $pl->ranged_ob ($slots->[2]);
745 }, 1584 },
746); 1585);
747 1586
748############################################################################# 1587sub save($) {
1588 my ($pl) = @_;
749 1589
750=head2 CORE EXTENSIONS 1590 return if $pl->{deny_save};
751 1591
752Functions and methods that extend core crossfire objects. 1592 my $path = path $pl;
1593 my $guard = cf::lock_acquire "user_save:$path";
753 1594
754=head3 cf::player 1595 return if $pl->{deny_save};
1596
1597 aio_mkdir playerdir $pl, 0770;
1598 $pl->{last_save} = $cf::RUNTIME;
1599
1600 cf::get_slot 0.01;
1601
1602 # save slots, to be restored later
1603 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1604
1605 $pl->save_pl ($path);
1606 cf::cede_to_tick;
1607}
1608
1609sub new($) {
1610 my ($login) = @_;
1611
1612 my $self = create;
1613
1614 $self->ob->name ($login);
1615 $self->{deny_save} = 1;
1616
1617 $cf::PLAYER{$login} = $self;
1618
1619 $self
1620}
1621
1622=item $player->send_msg ($channel, $msg, $color, [extra...])
1623
1624=cut
1625
1626sub send_msg {
1627 my $ns = shift->ns
1628 or return;
1629 $ns->send_msg (@_);
1630}
1631
1632=item $pl->quit_character
1633
1634Nukes the player without looking back. If logged in, the connection will
1635be destroyed. May block for a long time.
1636
1637=cut
1638
1639sub quit_character {
1640 my ($pl) = @_;
1641
1642 my $name = $pl->ob->name;
1643
1644 $pl->{deny_save} = 1;
1645 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1646
1647 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1648 $pl->deactivate;
1649 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1650 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1651 $pl->ns->destroy if $pl->ns;
1652
1653 my $path = playerdir $pl;
1654 my $temp = "$path~$cf::RUNTIME~deleting~";
1655 aio_rename $path, $temp;
1656 delete $cf::PLAYER{$pl->ob->name};
1657 $pl->destroy;
1658
1659 my $prefix = qr<^~\Q$name\E/>;
1660
1661 # nuke player maps
1662 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1663
1664 IO::AIO::aio_rmtree $temp;
1665}
1666
1667=item $pl->kick
1668
1669Kicks a player out of the game. This destroys the connection.
1670
1671=cut
1672
1673sub kick {
1674 my ($pl, $kicker) = @_;
1675
1676 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1677 $pl->killer ("kicked");
1678 $pl->ns->destroy;
1679}
1680
1681=item cf::player::list_logins
1682
1683Returns am arrayref of all valid playernames in the system, can take a
1684while and may block, so not sync_job-capable, ever.
1685
1686=cut
1687
1688sub list_logins {
1689 my $dirs = aio_readdir $PLAYERDIR
1690 or return [];
1691
1692 my @logins;
1693
1694 for my $login (@$dirs) {
1695 my $path = path $login;
1696
1697 # a .pst is a dead give-away for a valid player
1698 # if no pst file found, open and chekc for blocked users
1699 if (aio_stat "$path.pst") {
1700 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1701 aio_read $fh, 0, 512, my $buf, 0 or next;
1702 $buf !~ /^password -------------$/m or next; # official not-valid tag
1703 }
1704
1705 utf8::decode $login;
1706 push @logins, $login;
1707 }
1708
1709 \@logins
1710}
1711
1712=item $player->maps
1713
1714=item cf::player::maps $login
1715
1716Returns an arrayref of map paths that are private for this
1717player. May block.
1718
1719=cut
1720
1721sub maps($) {
1722 my ($pl) = @_;
1723
1724 $pl = ref $pl ? $pl->ob->name : $pl;
1725
1726 my $files = aio_readdir playerdir $pl
1727 or return;
1728
1729 my @paths;
1730
1731 for (@$files) {
1732 utf8::decode $_;
1733 next if /\.(?:pl|pst)$/;
1734 next unless /^$PATH_SEP/o;
1735
1736 push @paths, cf::map::normalise "~$pl/$_";
1737 }
1738
1739 \@paths
1740}
1741
1742=item $protocol_xml = $player->expand_cfpod ($cfpod)
1743
1744Expand deliantra pod fragments into protocol xml.
1745
1746=item $player->ext_reply ($msgid, @msg)
1747
1748Sends an ext reply to the player.
1749
1750=cut
1751
1752sub ext_reply($$@) {
1753 my ($self, $id, @msg) = @_;
1754
1755 $self->ns->ext_reply ($id, @msg)
1756}
1757
1758=item $player->ext_msg ($type, @msg)
1759
1760Sends an ext event to the client.
1761
1762=cut
1763
1764sub ext_msg($$@) {
1765 my ($self, $type, @msg) = @_;
1766
1767 $self->ns->ext_msg ($type, @msg);
1768}
1769
1770=head3 cf::region
755 1771
756=over 4 1772=over 4
757 1773
758=item cf::player::exists $login
759
760Returns true when the given account exists.
761
762=cut 1774=cut
763 1775
764sub cf::player::exists($) { 1776package 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 1777
769=item $player->ext_reply ($msgid, $msgtype, %msg) 1778=item cf::region::find_by_path $path
770 1779
771Sends an ext reply to the player. 1780Tries to decuce the likely region for a map knowing only its path.
772 1781
773=cut 1782=cut
774 1783
775sub cf::player::ext_reply($$$%) { 1784sub find_by_path($) {
1785 my ($path) = @_;
1786
1787 $path =~ s/^~[^\/]*//; # skip ~login
1788
1789 my ($match, $specificity);
1790
1791 for my $region (list) {
1792 if ($region->{match} && $path =~ $region->{match}) {
1793 ($match, $specificity) = ($region, $region->specificity)
1794 if $region->specificity > $specificity;
1795 }
1796 }
1797
1798 $match
1799}
1800
1801=back
1802
1803=head3 cf::map
1804
1805=over 4
1806
1807=cut
1808
1809package cf::map;
1810
1811use Fcntl;
1812use Coro::AIO;
1813
1814use overload
1815 '""' => \&as_string,
1816 fallback => 1;
1817
1818our $MAX_RESET = 3600;
1819our $DEFAULT_RESET = 3000;
1820
1821sub generate_random_map {
1822 my ($self, $rmp) = @_;
1823
1824 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1825
1826 # mit "rum" bekleckern, nicht
1827 $self->_create_random_map (
1828 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1829 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1830 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1831 $rmp->{exit_on_final_map},
1832 $rmp->{xsize}, $rmp->{ysize},
1833 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1834 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1835 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1836 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1837 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1838 (cf::region::find $rmp->{region}), $rmp->{custom}
1839 )
1840}
1841
1842=item cf::map->register ($regex, $prio)
1843
1844Register a handler for the map path matching the given regex at the
1845givne priority (higher is better, built-in handlers have priority 0, the
1846default).
1847
1848=cut
1849
1850sub register {
1851 my (undef, $regex, $prio) = @_;
1852 my $pkg = caller;
1853
1854 no strict;
1855 push @{"$pkg\::ISA"}, __PACKAGE__;
1856
1857 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1858}
1859
1860# also paths starting with '/'
1861$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1862
1863sub thawer_merge {
776 my ($self, $id, %msg) = @_; 1864 my ($self, $merge) = @_;
777 1865
778 $msg{msgid} = $id; 1866 # we have to keep some variables in memory intact
1867 local $self->{path};
1868 local $self->{load_path};
779 1869
780 $self->send ("ext " . to_json \%msg); 1870 $self->SUPER::thawer_merge ($merge);
781} 1871}
1872
1873sub normalise {
1874 my ($path, $base) = @_;
1875
1876 $path = "$path"; # make sure its a string
1877
1878 $path =~ s/\.map$//;
1879
1880 # map plan:
1881 #
1882 # /! non-realised random map exit (special hack!)
1883 # {... are special paths that are not being touched
1884 # ?xxx/... are special absolute paths
1885 # ?random/... random maps
1886 # /... normal maps
1887 # ~user/... per-player map of a specific user
1888
1889 $path =~ s/$PATH_SEP/\//go;
1890
1891 # treat it as relative path if it starts with
1892 # something that looks reasonable
1893 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1894 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1895
1896 $base =~ s{[^/]+/?$}{};
1897 $path = "$base/$path";
1898 }
1899
1900 for ($path) {
1901 redo if s{//}{/};
1902 redo if s{/\.?/}{/};
1903 redo if s{/[^/]+/\.\./}{/};
1904 }
1905
1906 $path
1907}
1908
1909sub new_from_path {
1910 my (undef, $path, $base) = @_;
1911
1912 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1913
1914 $path = normalise $path, $base;
1915
1916 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1917 if ($path =~ $EXT_MAP{$pkg}[1]) {
1918 my $self = bless cf::map::new, $pkg;
1919 $self->{path} = $path; $self->path ($path);
1920 $self->init; # pass $1 etc.
1921 return $self;
1922 }
1923 }
1924
1925 Carp::cluck "unable to resolve path '$path' (base '$base').";
1926 ()
1927}
1928
1929sub init {
1930 my ($self) = @_;
1931
1932 $self
1933}
1934
1935sub as_string {
1936 my ($self) = @_;
1937
1938 "$self->{path}"
1939}
1940
1941# the displayed name, this is a one way mapping
1942sub visible_name {
1943 &as_string
1944}
1945
1946# the original (read-only) location
1947sub load_path {
1948 my ($self) = @_;
1949
1950 "$MAPDIR/$self->{path}.map"
1951}
1952
1953# the temporary/swap location
1954sub save_path {
1955 my ($self) = @_;
1956
1957 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1958 "$TMPDIR/$path.map"
1959}
1960
1961# the unique path, undef == no special unique path
1962sub uniq_path {
1963 my ($self) = @_;
1964
1965 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1966 "$UNIQUEDIR/$path"
1967}
1968
1969sub decay_objects {
1970 my ($self) = @_;
1971
1972 return if $self->{deny_reset};
1973
1974 $self->do_decay_objects;
1975}
1976
1977sub unlink_save {
1978 my ($self) = @_;
1979
1980 utf8::encode (my $save = $self->save_path);
1981 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1982 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1983}
1984
1985sub load_header_from($) {
1986 my ($self, $path) = @_;
1987
1988 utf8::encode $path;
1989 my $f = new_from_file cf::object::thawer $path
1990 or return;
1991
1992 $self->_load_header ($f)
1993 or return;
1994
1995 local $MAP_LOADING{$self->{path}} = $self;
1996 $f->resolve_delayed_derefs;
1997
1998 $self->{load_path} = $path;
1999
2000 1
2001}
2002
2003sub load_header_orig {
2004 my ($self) = @_;
2005
2006 $self->load_header_from ($self->load_path)
2007}
2008
2009sub load_header_temp {
2010 my ($self) = @_;
2011
2012 $self->load_header_from ($self->save_path)
2013}
2014
2015sub prepare_temp {
2016 my ($self) = @_;
2017
2018 $self->last_access ((delete $self->{last_access})
2019 || $cf::RUNTIME); #d#
2020 # safety
2021 $self->{instantiate_time} = $cf::RUNTIME
2022 if $self->{instantiate_time} > $cf::RUNTIME;
2023}
2024
2025sub prepare_orig {
2026 my ($self) = @_;
2027
2028 $self->{load_original} = 1;
2029 $self->{instantiate_time} = $cf::RUNTIME;
2030 $self->last_access ($cf::RUNTIME);
2031 $self->instantiate;
2032}
2033
2034sub load_header {
2035 my ($self) = @_;
2036
2037 if ($self->load_header_temp) {
2038 $self->prepare_temp;
2039 } else {
2040 $self->load_header_orig
2041 or return;
2042 $self->prepare_orig;
2043 }
2044
2045 $self->{deny_reset} = 1
2046 if $self->no_reset;
2047
2048 $self->default_region (cf::region::find_by_path $self->{path})
2049 unless $self->default_region;
2050
2051 1
2052}
2053
2054sub find;
2055sub find {
2056 my ($path, $origin) = @_;
2057
2058 $path = normalise $path, $origin && $origin->path;
2059
2060 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2061 my $guard2 = cf::lock_acquire "map_find:$path";
2062
2063 $cf::MAP{$path} || do {
2064 my $map = new_from_path cf::map $path
2065 or return;
2066
2067 $map->{last_save} = $cf::RUNTIME;
2068
2069 $map->load_header
2070 or return;
2071
2072 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2073 # doing this can freeze the server in a sync job, obviously
2074 #$cf::WAIT_FOR_TICK->wait;
2075 undef $guard2;
2076 undef $guard1;
2077 $map->reset;
2078 return find $path;
2079 }
2080
2081 $cf::MAP{$path} = $map
2082 }
2083}
2084
2085sub pre_load { }
2086#sub post_load { } # XS
2087
2088sub load {
2089 my ($self) = @_;
2090
2091 local $self->{deny_reset} = 1; # loading can take a long time
2092
2093 my $path = $self->{path};
2094
2095 {
2096 my $guard = cf::lock_acquire "map_data:$path";
2097
2098 return unless $self->valid;
2099 return unless $self->in_memory == cf::MAP_SWAPPED;
2100
2101 $self->in_memory (cf::MAP_LOADING);
2102
2103 $self->alloc;
2104
2105 $self->pre_load;
2106 cf::cede_to_tick;
2107
2108 my $f = new_from_file cf::object::thawer $self->{load_path};
2109 $f->skip_block;
2110 $self->_load_objects ($f)
2111 or return;
2112
2113 $self->post_load_original
2114 if delete $self->{load_original};
2115
2116 if (my $uniq = $self->uniq_path) {
2117 utf8::encode $uniq;
2118 unless (aio_stat $uniq) {
2119 if (my $f = new_from_file cf::object::thawer $uniq) {
2120 $self->clear_unique_items;
2121 $self->_load_objects ($f);
2122 $f->resolve_delayed_derefs;
2123 }
2124 }
2125 }
2126
2127 $f->resolve_delayed_derefs;
2128
2129 cf::cede_to_tick;
2130 # now do the right thing for maps
2131 $self->link_multipart_objects;
2132 $self->difficulty ($self->estimate_difficulty)
2133 unless $self->difficulty;
2134 cf::cede_to_tick;
2135
2136 unless ($self->{deny_activate}) {
2137 $self->decay_objects;
2138 $self->fix_auto_apply;
2139 $self->update_buttons;
2140 cf::cede_to_tick;
2141 $self->activate;
2142 }
2143
2144 $self->{last_save} = $cf::RUNTIME;
2145 $self->last_access ($cf::RUNTIME);
2146
2147 $self->in_memory (cf::MAP_ACTIVE);
2148 }
2149
2150 $self->post_load;
2151}
2152
2153# customize the map for a given player, i.e.
2154# return the _real_ map. used by e.g. per-player
2155# maps to change the path to ~playername/mappath
2156sub customise_for {
2157 my ($self, $ob) = @_;
2158
2159 return find "~" . $ob->name . "/" . $self->{path}
2160 if $self->per_player;
2161
2162# return find "?party/" . $ob->name . "/" . $self->{path}
2163# if $self->per_party;
2164
2165 $self
2166}
2167
2168# find and load all maps in the 3x3 area around a map
2169sub load_neighbours {
2170 my ($map) = @_;
2171
2172 my @neigh; # diagonal neighbours
2173
2174 for (0 .. 3) {
2175 my $neigh = $map->tile_path ($_)
2176 or next;
2177 $neigh = find $neigh, $map
2178 or next;
2179 $neigh->load;
2180
2181 # now find the diagonal neighbours
2182 push @neigh,
2183 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2184 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2185 }
2186
2187 for (grep defined $_->[0], @neigh) {
2188 my ($path, $origin) = @$_;
2189 my $neigh = find $path, $origin
2190 or next;
2191 $neigh->load;
2192 }
2193}
2194
2195sub find_sync {
2196 my ($path, $origin) = @_;
2197
2198 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2199 if $Coro::current == $Coro::main;
2200
2201 find $path, $origin
2202}
2203
2204sub do_load_sync {
2205 my ($map) = @_;
2206
2207 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2208 if $Coro::current == $Coro::main;
2209
2210 $map->load;
2211}
2212
2213our %MAP_PREFETCH;
2214our $MAP_PREFETCHER = undef;
2215
2216sub find_async {
2217 my ($path, $origin, $load) = @_;
2218
2219 $path = normalise $path, $origin && $origin->{path};
2220
2221 if (my $map = $cf::MAP{$path}) {
2222 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
2223 }
2224
2225 $MAP_PREFETCH{$path} |= $load;
2226
2227 $MAP_PREFETCHER ||= cf::async {
2228 $Coro::current->{desc} = "map prefetcher";
2229
2230 while (%MAP_PREFETCH) {
2231 while (my ($k, $v) = each %MAP_PREFETCH) {
2232 if (my $map = find $k) {
2233 $map->load if $v;
2234 }
2235
2236 delete $MAP_PREFETCH{$k};
2237 }
2238 }
2239 undef $MAP_PREFETCHER;
2240 };
2241 $MAP_PREFETCHER->prio (6);
2242
2243 ()
2244}
2245
2246# common code, used by both ->save and ->swapout
2247sub _save {
2248 my ($self) = @_;
2249
2250 $self->{last_save} = $cf::RUNTIME;
2251
2252 return unless $self->dirty;
2253
2254 my $save = $self->save_path; utf8::encode $save;
2255 my $uniq = $self->uniq_path; utf8::encode $uniq;
2256
2257 $self->{load_path} = $save;
2258
2259 return if $self->{deny_save};
2260
2261 local $self->{last_access} = $self->last_access;#d#
2262
2263 cf::async {
2264 $Coro::current->{desc} = "map player save";
2265 $_->contr->save for $self->players;
2266 };
2267
2268 cf::get_slot 0.02;
2269
2270 if ($uniq) {
2271 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
2272 $self->_save_objects ($uniq, cf::IO_UNIQUES);
2273 } else {
2274 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
2275 }
2276}
2277
2278sub save {
2279 my ($self) = @_;
2280
2281 my $lock = cf::lock_acquire "map_data:$self->{path}";
2282
2283 $self->_save;
2284}
2285
2286sub swap_out {
2287 my ($self) = @_;
2288
2289 my $lock = cf::lock_acquire "map_data:$self->{path}";
2290
2291 return if $self->in_memory != cf::MAP_ACTIVE;
2292 return if $self->{deny_save};
2293 return if $self->players;
2294
2295 # first deactivate the map and "unlink" it from the core
2296 $self->deactivate;
2297 $_->clear_links_to ($self) for values %cf::MAP;
2298 $self->in_memory (cf::MAP_SWAPPED);
2299
2300 # then atomically save
2301 $self->_save;
2302
2303 # then free the map
2304 $self->clear;
2305}
2306
2307sub reset_at {
2308 my ($self) = @_;
2309
2310 # TODO: safety, remove and allow resettable per-player maps
2311 return 1e99 if $self->{deny_reset};
2312
2313 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
2314 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
2315
2316 $time + $to
2317}
2318
2319sub should_reset {
2320 my ($self) = @_;
2321
2322 $self->reset_at <= $cf::RUNTIME
2323}
2324
2325sub reset {
2326 my ($self) = @_;
2327
2328 my $lock = cf::lock_acquire "map_data:$self->{path}";
2329
2330 return if $self->players;
2331
2332 cf::trace "resetting map ", $self->path, "\n";
2333
2334 $self->in_memory (cf::MAP_SWAPPED);
2335
2336 # need to save uniques path
2337 unless ($self->{deny_save}) {
2338 my $uniq = $self->uniq_path; utf8::encode $uniq;
2339
2340 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2341 if $uniq;
2342 }
2343
2344 delete $cf::MAP{$self->path};
2345
2346 $self->deactivate;
2347 $_->clear_links_to ($self) for values %cf::MAP;
2348 $self->clear;
2349
2350 $self->unlink_save;
2351 $self->destroy;
2352}
2353
2354my $nuke_counter = "aaaa";
2355
2356sub nuke {
2357 my ($self) = @_;
2358
2359 {
2360 my $lock = cf::lock_acquire "map_data:$self->{path}";
2361
2362 delete $cf::MAP{$self->path};
2363
2364 $self->unlink_save;
2365
2366 bless $self, "cf::map::wrap";
2367 delete $self->{deny_reset};
2368 $self->{deny_save} = 1;
2369 $self->reset_timeout (1);
2370 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2371
2372 $cf::MAP{$self->path} = $self;
2373 }
2374
2375 $self->reset; # polite request, might not happen
2376}
2377
2378=item $maps = cf::map::tmp_maps
2379
2380Returns an arrayref with all map paths of currently instantiated and saved
2381maps. May block.
2382
2383=cut
2384
2385sub tmp_maps() {
2386 [
2387 map {
2388 utf8::decode $_;
2389 /\.map$/
2390 ? normalise $_
2391 : ()
2392 } @{ aio_readdir $TMPDIR or [] }
2393 ]
2394}
2395
2396=item $maps = cf::map::random_maps
2397
2398Returns an arrayref with all map paths of currently instantiated and saved
2399random maps. May block.
2400
2401=cut
2402
2403sub random_maps() {
2404 [
2405 map {
2406 utf8::decode $_;
2407 /\.map$/
2408 ? normalise "?random/$_"
2409 : ()
2410 } @{ aio_readdir $RANDOMDIR or [] }
2411 ]
2412}
2413
2414=item cf::map::unique_maps
2415
2416Returns an arrayref of paths of all shared maps that have
2417instantiated unique items. May block.
2418
2419=cut
2420
2421sub unique_maps() {
2422 [
2423 map {
2424 utf8::decode $_;
2425 s/\.map$//; # TODO future compatibility hack
2426 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2427 ? ()
2428 : normalise $_
2429 } @{ aio_readdir $UNIQUEDIR or [] }
2430 ]
2431}
2432
2433=item cf::map::static_maps
2434
2435Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2436file in the shared directory excluding F</styles> and F</editor>). May
2437block.
2438
2439=cut
2440
2441sub static_maps() {
2442 my @dirs = "";
2443 my @maps;
2444
2445 while (@dirs) {
2446 my $dir = shift @dirs;
2447
2448 next if $dir eq "/styles" || $dir eq "/editor";
2449
2450 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2451 or return;
2452
2453 for (@$files) {
2454 s/\.map$// or next;
2455 utf8::decode $_;
2456 push @maps, "$dir/$_";
2457 }
2458
2459 push @dirs, map "$dir/$_", @$dirs;
2460 }
2461
2462 \@maps
2463}
2464
2465=back
2466
2467=head3 cf::object
2468
2469=cut
2470
2471package cf::object;
2472
2473=over 4
2474
2475=item $ob->inv_recursive
2476
2477Returns the inventory of the object I<and> their inventories, recursively,
2478but I<not> the object itself.
2479
2480=cut
2481
2482sub inv_recursive_;
2483sub inv_recursive_ {
2484 map { $_, inv_recursive_ $_->inv } @_
2485}
2486
2487sub inv_recursive {
2488 inv_recursive_ inv $_[0]
2489}
2490
2491=item $ref = $ob->ref
2492
2493Creates and returns a persistent reference to an object that can be stored as a string.
2494
2495=item $ob = cf::object::deref ($refstring)
2496
2497returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2498even if the object actually exists. May block.
2499
2500=cut
2501
2502sub deref {
2503 my ($ref) = @_;
2504
2505 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2506 my ($uuid, $name) = ($1, $2);
2507 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2508 or return;
2509 $pl->ob->uuid eq $uuid
2510 or return;
2511
2512 $pl->ob
2513 } else {
2514 warn "$ref: cannot resolve object reference\n";
2515 undef
2516 }
2517}
2518
2519package cf;
782 2520
783=back 2521=back
784 2522
785=head3 cf::object::player 2523=head3 cf::object::player
786 2524
… …
791Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2529Sends 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 2530can be C<undef>. Does the right thing when the player is currently in a
793dialogue with the given NPC character. 2531dialogue with the given NPC character.
794 2532
795=cut 2533=cut
2534
2535our $SAY_CHANNEL = {
2536 id => "say",
2537 title => "Map",
2538 reply => "say ",
2539 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2540};
2541
2542our $CHAT_CHANNEL = {
2543 id => "chat",
2544 title => "Chat",
2545 reply => "chat ",
2546 tooltip => "Player chat and shouts, global to the server.",
2547};
796 2548
797# rough implementation of a future "reply" method that works 2549# rough implementation of a future "reply" method that works
798# with dialog boxes. 2550# with dialog boxes.
799#TODO: the first argument must go, split into a $npc->reply_to ( method 2551#TODO: the first argument must go, split into a $npc->reply_to ( method
800sub cf::object::player::reply($$$;$) { 2552sub cf::object::player::reply($$$;$) {
… …
802 2554
803 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2555 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
804 2556
805 if ($self->{record_replies}) { 2557 if ($self->{record_replies}) {
806 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2558 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2559
807 } else { 2560 } else {
2561 my $pl = $self->contr;
2562
2563 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2564 my $dialog = $pl->{npc_dialog};
2565 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2566
2567 } else {
808 $msg = $npc->name . " says: $msg" if $npc; 2568 $msg = $npc->name . " says: $msg" if $npc;
809 $self->message ($msg, $flags); 2569 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2570 }
810 } 2571 }
2572}
2573
2574=item $object->send_msg ($channel, $msg, $color, [extra...])
2575
2576=cut
2577
2578sub cf::object::send_msg {
2579 my $pl = shift->contr
2580 or return;
2581 $pl->send_msg (@_);
811} 2582}
812 2583
813=item $player_object->may ("access") 2584=item $player_object->may ("access")
814 2585
815Returns wether the given player is authorized to access resource "access" 2586Returns wether the given player is authorized to access resource "access"
… …
824 (ref $cf::CFG{"may_$access"} 2595 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 2596 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 2597 : $cf::CFG{"may_$access"})
827} 2598}
828 2599
2600=item $player_object->enter_link
2601
2602Freezes the player and moves him/her to a special map (C<{link}>).
2603
2604The player should be reasonably safe there for short amounts of time (e.g.
2605for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2606though, as the player cannot control the character while it is on the link
2607map.
2608
2609Will never block.
2610
2611=item $player_object->leave_link ($map, $x, $y)
2612
2613Moves the player out of the special C<{link}> map onto the specified
2614map. If the map is not valid (or omitted), the player will be moved back
2615to the location he/she was before the call to C<enter_link>, or, if that
2616fails, to the emergency map position.
2617
2618Might block.
2619
2620=cut
2621
2622sub link_map {
2623 unless ($LINK_MAP) {
2624 $LINK_MAP = cf::map::find "{link}"
2625 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2626 $LINK_MAP->load;
2627 }
2628
2629 $LINK_MAP
2630}
2631
2632sub cf::object::player::enter_link {
2633 my ($self) = @_;
2634
2635 $self->deactivate_recursive;
2636
2637 ++$self->{_link_recursion};
2638
2639 return if UNIVERSAL::isa $self->map, "ext::map_link";
2640
2641 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2642 if $self->map && $self->map->{path} ne "{link}";
2643
2644 $self->enter_map ($LINK_MAP || link_map, 3, 3);
2645}
2646
2647sub cf::object::player::leave_link {
2648 my ($self, $map, $x, $y) = @_;
2649
2650 return unless $self->contr->active;
2651
2652 my $link_pos = delete $self->{_link_pos};
2653
2654 unless ($map) {
2655 # restore original map position
2656 ($map, $x, $y) = @{ $link_pos || [] };
2657 $map = cf::map::find $map;
2658
2659 unless ($map) {
2660 ($map, $x, $y) = @$EMERGENCY_POSITION;
2661 $map = cf::map::find $map
2662 or die "FATAL: cannot load emergency map\n";
2663 }
2664 }
2665
2666 ($x, $y) = (-1, -1)
2667 unless (defined $x) && (defined $y);
2668
2669 # use -1 or undef as default coordinates, not 0, 0
2670 ($x, $y) = ($map->enter_x, $map->enter_y)
2671 if $x <= 0 && $y <= 0;
2672
2673 $map->load;
2674 $map->load_neighbours;
2675
2676 return unless $self->contr->active;
2677
2678 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2679 if ($self->enter_map ($map, $x, $y)) {
2680 # entering was successful
2681 delete $self->{_link_recursion};
2682 # only activate afterwards, to support waiting in hooks
2683 $self->activate_recursive;
2684 }
2685
2686}
2687
2688=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2689
2690Moves the player to the given map-path and coordinates by first freezing
2691her, loading and preparing them map, calling the provided $check callback
2692that has to return the map if sucecssful, and then unfreezes the player on
2693the new (success) or old (failed) map position. In either case, $done will
2694be called at the end of this process.
2695
2696Note that $check will be called with a potentially non-loaded map, so if
2697it needs a loaded map it has to call C<< ->load >>.
2698
2699=cut
2700
2701our $GOTOGEN;
2702
2703sub cf::object::player::goto {
2704 my ($self, $path, $x, $y, $check, $done) = @_;
2705
2706 if ($self->{_link_recursion} >= $MAX_LINKS) {
2707 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2708 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2709 ($path, $x, $y) = @$EMERGENCY_POSITION;
2710 }
2711
2712 # do generation counting so two concurrent goto's will be executed in-order
2713 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2714
2715 $self->enter_link;
2716
2717 (async {
2718 $Coro::current->{desc} = "player::goto $path $x $y";
2719
2720 # *tag paths override both path and x|y
2721 if ($path =~ /^\*(.*)$/) {
2722 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2723 my $ob = $obs[rand @obs];
2724
2725 # see if we actually can go there
2726 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2727 $ob = $obs[rand @obs];
2728 } else {
2729 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2730 }
2731 # else put us there anyways for now #d#
2732
2733 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2734 } else {
2735 ($path, $x, $y) = (undef, undef, undef);
2736 }
2737 }
2738
2739 my $map = eval {
2740 my $map = defined $path ? cf::map::find $path : undef;
2741
2742 if ($map) {
2743 $map = $map->customise_for ($self);
2744 $map = $check->($map, $x, $y, $self) if $check && $map;
2745 } else {
2746 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2747 }
2748
2749 $map
2750 };
2751
2752 if ($@) {
2753 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2754 LOG llevError | logBacktrace, Carp::longmess $@;
2755 }
2756
2757 if ($gen == $self->{_goto_generation}) {
2758 delete $self->{_goto_generation};
2759 $self->leave_link ($map, $x, $y);
2760 }
2761
2762 $done->($self) if $done;
2763 })->prio (1);
2764}
2765
2766=item $player_object->enter_exit ($exit_object)
2767
2768=cut
2769
2770sub parse_random_map_params {
2771 my ($spec) = @_;
2772
2773 my $rmp = { # defaults
2774 xsize => (cf::rndm 15, 40),
2775 ysize => (cf::rndm 15, 40),
2776 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2777 #layout => string,
2778 };
2779
2780 for (split /\n/, $spec) {
2781 my ($k, $v) = split /\s+/, $_, 2;
2782
2783 $rmp->{lc $k} = $v if (length $k) && (length $v);
2784 }
2785
2786 $rmp
2787}
2788
2789sub prepare_random_map {
2790 my ($exit) = @_;
2791
2792 # all this does is basically replace the /! path by
2793 # a new random map path (?random/...) with a seed
2794 # that depends on the exit object
2795
2796 my $rmp = parse_random_map_params $exit->msg;
2797
2798 if ($exit->map) {
2799 $rmp->{region} = $exit->region->name;
2800 $rmp->{origin_map} = $exit->map->path;
2801 $rmp->{origin_x} = $exit->x;
2802 $rmp->{origin_y} = $exit->y;
2803
2804 $exit->map->touch;
2805 }
2806
2807 $rmp->{random_seed} ||= $exit->random_seed;
2808
2809 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2810 my $md5 = Digest::MD5::md5_hex $data;
2811 my $meta = "$RANDOMDIR/$md5.meta";
2812
2813 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2814 aio_write $fh, 0, (length $data), $data, 0;
2815 undef $fh;
2816 aio_rename "$meta~", $meta;
2817
2818 my $slaying = "?random/$md5";
2819
2820 if ($exit->valid) {
2821 $exit->slaying ("?random/$md5");
2822 $exit->msg (undef);
2823 }
2824 }
2825}
2826
2827sub cf::object::player::enter_exit {
2828 my ($self, $exit) = @_;
2829
2830 return unless $self->type == cf::PLAYER;
2831
2832 $self->enter_link;
2833
2834 (async {
2835 $Coro::current->{desc} = "enter_exit";
2836
2837 unless (eval {
2838 $self->deactivate_recursive; # just to be sure
2839
2840 # random map handling
2841 {
2842 my $guard = cf::lock_acquire "exit_prepare:$exit";
2843
2844 prepare_random_map $exit
2845 if $exit->slaying eq "/!";
2846 }
2847
2848 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2849 my $x = $exit->stats->hp;
2850 my $y = $exit->stats->sp;
2851
2852 $self->goto ($map, $x, $y);
2853
2854 # if exit is damned, update players death & WoR home-position
2855 $self->contr->savebed ($map, $x, $y)
2856 if $exit->flag (cf::FLAG_DAMNED);
2857
2858 1
2859 }) {
2860 $self->message ("Something went wrong deep within the deliantra server. "
2861 . "I'll try to bring you back to the map you were before. "
2862 . "Please report this to the dungeon master!",
2863 cf::NDI_UNIQUE | cf::NDI_RED);
2864
2865 error "ERROR in enter_exit: $@";
2866 $self->leave_link;
2867 }
2868 })->prio (1);
2869}
2870
829=head3 cf::client 2871=head3 cf::client
830 2872
831=over 4 2873=over 4
832 2874
833=item $client->send_drawinfo ($text, $flags) 2875=item $client->send_drawinfo ($text, $flags)
… …
839 2881
840sub cf::client::send_drawinfo { 2882sub cf::client::send_drawinfo {
841 my ($self, $text, $flags) = @_; 2883 my ($self, $text, $flags) = @_;
842 2884
843 utf8::encode $text; 2885 utf8::encode $text;
844 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2886 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845} 2887}
846 2888
2889=item $client->send_big_packet ($pkt)
2890
2891Like C<send_packet>, but tries to compress large packets, and fragments
2892them as required.
2893
2894=cut
2895
2896our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2897
2898sub cf::client::send_big_packet {
2899 my ($self, $pkt) = @_;
2900
2901 # try lzf for large packets
2902 $pkt = "lzf " . Compress::LZF::compress $pkt
2903 if 1024 <= length $pkt and $self->{can_lzf};
2904
2905 # split very large packets
2906 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2907 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2908 $pkt = "frag";
2909 }
2910
2911 $self->send_packet ($pkt);
2912}
2913
2914=item $client->send_msg ($channel, $msg, $color, [extra...])
2915
2916Send a drawinfo or msg packet to the client, formatting the msg for the
2917client if neccessary. C<$type> should be a string identifying the type of
2918the message, with C<log> being the default. If C<$color> is negative, suppress
2919the message unless the client supports the msg packet.
2920
2921=cut
2922
2923# non-persistent channels (usually the info channel)
2924our %CHANNEL = (
2925 "c/motd" => {
2926 id => "infobox",
2927 title => "MOTD",
2928 reply => undef,
2929 tooltip => "The message of the day",
2930 },
2931 "c/identify" => {
2932 id => "infobox",
2933 title => "Identify",
2934 reply => undef,
2935 tooltip => "Items recently identified",
2936 },
2937 "c/examine" => {
2938 id => "infobox",
2939 title => "Examine",
2940 reply => undef,
2941 tooltip => "Signs and other items you examined",
2942 },
2943 "c/shopinfo" => {
2944 id => "infobox",
2945 title => "Shop Info",
2946 reply => undef,
2947 tooltip => "What your bargaining skill tells you about the shop",
2948 },
2949 "c/book" => {
2950 id => "infobox",
2951 title => "Book",
2952 reply => undef,
2953 tooltip => "The contents of a note or book",
2954 },
2955 "c/lookat" => {
2956 id => "infobox",
2957 title => "Look",
2958 reply => undef,
2959 tooltip => "What you saw there",
2960 },
2961 "c/who" => {
2962 id => "infobox",
2963 title => "Players",
2964 reply => undef,
2965 tooltip => "Shows players who are currently online",
2966 },
2967 "c/body" => {
2968 id => "infobox",
2969 title => "Body Parts",
2970 reply => undef,
2971 tooltip => "Shows which body parts you posess and are available",
2972 },
2973 "c/statistics" => {
2974 id => "infobox",
2975 title => "Statistics",
2976 reply => undef,
2977 tooltip => "Shows your primary statistics",
2978 },
2979 "c/skills" => {
2980 id => "infobox",
2981 title => "Skills",
2982 reply => undef,
2983 tooltip => "Shows your experience per skill and item power",
2984 },
2985 "c/shopitems" => {
2986 id => "infobox",
2987 title => "Shop Items",
2988 reply => undef,
2989 tooltip => "Shows the items currently for sale in this shop",
2990 },
2991 "c/resistances" => {
2992 id => "infobox",
2993 title => "Resistances",
2994 reply => undef,
2995 tooltip => "Shows your resistances",
2996 },
2997 "c/pets" => {
2998 id => "infobox",
2999 title => "Pets",
3000 reply => undef,
3001 tooltip => "Shows information abotu your pets/a specific pet",
3002 },
3003 "c/perceiveself" => {
3004 id => "infobox",
3005 title => "Perceive Self",
3006 reply => undef,
3007 tooltip => "You gained detailed knowledge about yourself",
3008 },
3009 "c/uptime" => {
3010 id => "infobox",
3011 title => "Uptime",
3012 reply => undef,
3013 tooltip => "How long the server has been running since last restart",
3014 },
3015 "c/mapinfo" => {
3016 id => "infobox",
3017 title => "Map Info",
3018 reply => undef,
3019 tooltip => "Information related to the maps",
3020 },
3021 "c/party" => {
3022 id => "party",
3023 title => "Party",
3024 reply => "gsay ",
3025 tooltip => "Messages and chat related to your party",
3026 },
3027 "c/death" => {
3028 id => "death",
3029 title => "Death",
3030 reply => undef,
3031 tooltip => "Reason for and more info about your most recent death",
3032 },
3033 "c/say" => $SAY_CHANNEL,
3034 "c/chat" => $CHAT_CHANNEL,
3035);
3036
3037sub cf::client::send_msg {
3038 my ($self, $channel, $msg, $color, @extra) = @_;
3039
3040 $msg = $self->pl->expand_cfpod ($msg)
3041 unless $color & cf::NDI_VERBATIM;
3042
3043 $color &= cf::NDI_CLIENT_MASK; # just in case...
3044
3045 # check predefined channels, for the benefit of C
3046 if ($CHANNEL{$channel}) {
3047 $channel = $CHANNEL{$channel};
3048
3049 $self->ext_msg (channel_info => $channel);
3050 $channel = $channel->{id};
3051
3052 } elsif (ref $channel) {
3053 # send meta info to client, if not yet sent
3054 unless (exists $self->{channel}{$channel->{id}}) {
3055 $self->{channel}{$channel->{id}} = $channel;
3056 $self->ext_msg (channel_info => $channel);
3057 }
3058
3059 $channel = $channel->{id};
3060 }
3061
3062 return unless @extra || length $msg;
3063
3064 # default colour, mask it out
3065 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3066 if $color & cf::NDI_DEF;
3067
3068 my $pkt = "msg "
3069 . $self->{json_coder}->encode (
3070 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3071 );
3072
3073 $self->send_big_packet ($pkt);
3074}
3075
3076=item $client->ext_msg ($type, @msg)
3077
3078Sends an ext event to the client.
3079
3080=cut
3081
3082sub cf::client::ext_msg($$@) {
3083 my ($self, $type, @msg) = @_;
3084
3085 if ($self->extcmd == 2) {
3086 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3087 } elsif ($self->extcmd == 1) { # TODO: remove
3088 push @msg, msgtype => "event_$type";
3089 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3090 }
3091}
3092
3093=item $client->ext_reply ($msgid, @msg)
3094
3095Sends an ext reply to the client.
3096
3097=cut
3098
3099sub cf::client::ext_reply($$@) {
3100 my ($self, $id, @msg) = @_;
3101
3102 if ($self->extcmd == 2) {
3103 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
3104 } elsif ($self->extcmd == 1) {
3105 #TODO: version 1, remove
3106 unshift @msg, msgtype => "reply", msgid => $id;
3107 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3108 }
3109}
847 3110
848=item $success = $client->query ($flags, "text", \&cb) 3111=item $success = $client->query ($flags, "text", \&cb)
849 3112
850Queues a query to the client, calling the given callback with 3113Queues a query to the client, calling the given callback with
851the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 3114the 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>. 3115C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
853 3116
854Queries can fail, so check the return code. Or don't, as queries will become 3117Queries can fail, so check the return code. Or don't, as queries will
855reliable at some point in the future. 3118become reliable at some point in the future.
856 3119
857=cut 3120=cut
858 3121
859sub cf::client::query { 3122sub cf::client::query {
860 my ($self, $flags, $text, $cb) = @_; 3123 my ($self, $flags, $text, $cb) = @_;
… …
868 utf8::encode $text; 3131 utf8::encode $text;
869 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 3132 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
870 3133
871 $self->send_packet ($self->{query_queue}[0][0]) 3134 $self->send_packet ($self->{query_queue}[0][0])
872 if @{ $self->{query_queue} } == 1; 3135 if @{ $self->{query_queue} } == 1;
3136
3137 1
873} 3138}
874 3139
875cf::client->attach ( 3140cf::client->attach (
3141 on_connect => sub {
3142 my ($ns) = @_;
3143
3144 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3145 },
876 on_reply => sub { 3146 on_reply => sub {
877 my ($ns, $msg) = @_; 3147 my ($ns, $msg) = @_;
878 3148
879 # this weird shuffling is so that direct followup queries 3149 # this weird shuffling is so that direct followup queries
880 # get handled first 3150 # get handled first
881 my $queue = delete $ns->{query_queue}; 3151 my $queue = delete $ns->{query_queue}
3152 or return; # be conservative, not sure how that can happen, but we saw a crash here
882 3153
883 (shift @$queue)->[1]->($msg); 3154 (shift @$queue)->[1]->($msg);
3155 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884 3156
885 push @{ $ns->{query_queue} }, @$queue; 3157 push @{ $ns->{query_queue} }, @$queue;
886 3158
887 if (@{ $ns->{query_queue} } == @$queue) { 3159 if (@{ $ns->{query_queue} } == @$queue) {
888 if (@$queue) { 3160 if (@$queue) {
889 $ns->send_packet ($ns->{query_queue}[0][0]); 3161 $ns->send_packet ($ns->{query_queue}[0][0]);
890 } else { 3162 } else {
891 $ns->state (ST_PLAYING); 3163 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892 } 3164 }
893 } 3165 }
3166 },
3167 on_exticmd => sub {
3168 my ($ns, $buf) = @_;
3169
3170 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3171
3172 if (ref $msg) {
3173 my ($type, $reply, @payload) =
3174 "ARRAY" eq ref $msg
3175 ? @$msg
3176 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3177
3178 my @reply;
3179
3180 if (my $cb = $EXTICMD{$type}) {
3181 @reply = $cb->($ns, @payload);
3182 }
3183
3184 $ns->ext_reply ($reply, @reply)
3185 if $reply;
3186
3187 } else {
3188 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3189 }
3190
3191 cf::override;
894 }, 3192 },
895); 3193);
896 3194
897=item $client->coro (\&cb) 3195=item $client->async (\&cb)
898 3196
899Create a new coroutine, running the specified callback. The coroutine will 3197Create a new coroutine, running the specified callback. The coroutine will
900be automatically cancelled when the client gets destroyed (e.g. on logout, 3198be automatically cancelled when the client gets destroyed (e.g. on logout,
901or loss of connection). 3199or loss of connection).
902 3200
903=cut 3201=cut
904 3202
905sub cf::client::coro { 3203sub cf::client::async {
906 my ($self, $cb) = @_; 3204 my ($self, $cb) = @_;
907 3205
908 my $coro; $coro = async { 3206 my $coro = &Coro::async ($cb);
909 eval { 3207
910 $cb->(); 3208 $coro->on_destroy (sub {
911 };
912 warn $@ if $@;
913 delete $self->{_coro}{$coro+0}; 3209 delete $self->{_coro}{$coro+0};
914 }; 3210 });
915 3211
916 $self->{_coro}{$coro+0} = $coro; 3212 $self->{_coro}{$coro+0} = $coro;
3213
3214 $coro
917} 3215}
918 3216
919cf::client->attach ( 3217cf::client->attach (
920 on_destroy => sub { 3218 on_client_destroy => sub {
921 my ($ns) = @_; 3219 my ($ns) = @_;
922 3220
923 $_->cancel for values %{ (delete $ns->{_coro}) || {} }; 3221 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
924 }, 3222 },
925); 3223);
… …
940our $safe = new Safe "safe"; 3238our $safe = new Safe "safe";
941our $safe_hole = new Safe::Hole; 3239our $safe_hole = new Safe::Hole;
942 3240
943$SIG{FPE} = 'IGNORE'; 3241$SIG{FPE} = 'IGNORE';
944 3242
945$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3243$safe->permit_only (Opcode::opset qw(
3244 :base_core :base_mem :base_orig :base_math :base_loop
3245 grepstart grepwhile mapstart mapwhile
3246 sort time
3247));
946 3248
947# here we export the classes and methods available to script code 3249# here we export the classes and methods available to script code
948 3250
949=pod 3251=pod
950 3252
951The following fucntions and emthods are available within a safe environment: 3253The following functions and methods are available within a safe environment:
952 3254
953 cf::object contr pay_amount pay_player map 3255 cf::object
3256 contr pay_amount pay_player map x y force_find force_add destroy
3257 insert remove name archname title slaying race decrease split
3258 value
3259
954 cf::object::player player 3260 cf::object::player
955 cf::player peaceful 3261 player
956 cf::map trigger 3262
3263 cf::player
3264 peaceful
3265
3266 cf::map
3267 trigger
957 3268
958=cut 3269=cut
959 3270
960for ( 3271for (
961 ["cf::object" => qw(contr pay_amount pay_player map)], 3272 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3273 insert remove inv nrof name archname title slaying race
3274 decrease split destroy change_exp value msg lore send_msg)],
962 ["cf::object::player" => qw(player)], 3275 ["cf::object::player" => qw(player)],
963 ["cf::player" => qw(peaceful)], 3276 ["cf::player" => qw(peaceful send_msg)],
964 ["cf::map" => qw(trigger)], 3277 ["cf::map" => qw(trigger)],
965) { 3278) {
966 no strict 'refs'; 3279 no strict 'refs';
967 my ($pkg, @funs) = @$_; 3280 my ($pkg, @funs) = @$_;
968 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3281 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
… …
986 3299
987 my $qcode = $code; 3300 my $qcode = $code;
988 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3301 $qcode =~ s/"/‟/g; # not allowed in #line filenames
989 $qcode =~ s/\n/\\n/g; 3302 $qcode =~ s/\n/\\n/g;
990 3303
3304 %vars = (_dummy => 0) unless %vars;
3305
3306 my @res;
991 local $_; 3307 local $_;
992 local @safe::cf::_safe_eval_args = values %vars;
993 3308
994 my $eval = 3309 my $eval =
995 "do {\n" 3310 "do {\n"
996 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3311 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
997 . "#line 0 \"{$qcode}\"\n" 3312 . "#line 0 \"{$qcode}\"\n"
998 . $code 3313 . $code
999 . "\n}" 3314 . "\n}"
1000 ; 3315 ;
1001 3316
3317 if ($CFG{safe_eval}) {
1002 sub_generation_inc; 3318 sub_generation_inc;
3319 local @safe::cf::_safe_eval_args = values %vars;
1003 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3320 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1004 sub_generation_inc; 3321 sub_generation_inc;
3322 } else {
3323 local @cf::_safe_eval_args = values %vars;
3324 @res = wantarray ? eval eval : scalar eval $eval;
3325 }
1005 3326
1006 if ($@) { 3327 if ($@) {
1007 warn "$@"; 3328 warn "$@",
1008 warn "while executing safe code '$code'\n"; 3329 "while executing safe code '$code'\n",
1009 warn "with arguments " . (join " ", %vars) . "\n"; 3330 "with arguments " . (join " ", %vars) . "\n";
1010 } 3331 }
1011 3332
1012 wantarray ? @res : $res[0] 3333 wantarray ? @res : $res[0]
1013} 3334}
1014 3335
… …
1028=cut 3349=cut
1029 3350
1030sub register_script_function { 3351sub register_script_function {
1031 my ($fun, $cb) = @_; 3352 my ($fun, $cb) = @_;
1032 3353
1033 no strict 'refs'; 3354 $fun = "safe::$fun" if $CFG{safe_eval};
1034 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3355 *$fun = $safe_hole->wrap ($cb);
1035} 3356}
1036 3357
1037=back 3358=back
1038 3359
1039=cut 3360=cut
1040 3361
1041############################################################################# 3362#############################################################################
3363# the server's init and main functions
1042 3364
1043=head2 EXTENSION DATABASE SUPPORT 3365sub load_facedata($) {
3366 my ($path) = @_;
1044 3367
1045Crossfire maintains a very simple database for extension use. It can 3368 # HACK to clear player env face cache, we need some signal framework
1046currently store anything that can be serialised using Storable, which 3369 # for this (global event?)
1047excludes objects. 3370 %ext::player_env::MUSIC_FACE_CACHE = ();
1048 3371
1049The parameter C<$family> should best start with the name of the extension 3372 my $enc = JSON::XS->new->utf8->canonical->relaxed;
1050using it, it should be unique.
1051 3373
1052=over 4 3374 trace "loading facedata from $path\n";
1053 3375
1054=item $hashref = cf::db_get $family 3376 my $facedata;
3377 0 < aio_load $path, $facedata
3378 or die "$path: $!";
1055 3379
1056Return a hashref for use by the extension C<$family>, which can be 3380 $facedata = Coro::Storable::thaw $facedata;
1057modified. After modifications, you have to call C<cf::db_dirty> or
1058C<cf::db_sync>.
1059 3381
1060=item $value = cf::db_get $family => $key 3382 $facedata->{version} == 2
3383 or cf::cleanup "$path: version mismatch, cannot proceed.";
1061 3384
1062Returns a single value from the database 3385 # patch in the exptable
3386 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3387 $facedata->{resource}{"res/exp_table"} = {
3388 type => FT_RSRC,
3389 data => $exp_table,
3390 hash => (Digest::MD5::md5 $exp_table),
3391 };
3392 cf::cede_to_tick;
1063 3393
1064=item cf::db_put $family => $hashref 3394 {
3395 my $faces = $facedata->{faceinfo};
1065 3396
1066Stores the given family hashref into the database. Updates are delayed, if 3397 while (my ($face, $info) = each %$faces) {
1067you want the data to be synced to disk immediately, use C<cf::db_sync>. 3398 my $idx = (cf::face::find $face) || cf::face::alloc $face;
1068 3399
1069=item cf::db_put $family => $key => $value 3400 cf::face::set_visibility $idx, $info->{visibility};
3401 cf::face::set_magicmap $idx, $info->{magicmap};
3402 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3403 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1070 3404
1071Stores the given C<$value> in the family hash. Updates are delayed, if you 3405 cf::cede_to_tick;
1072want the data to be synced to disk immediately, use C<cf::db_sync>. 3406 }
1073 3407
1074=item cf::db_dirty 3408 while (my ($face, $info) = each %$faces) {
3409 next unless $info->{smooth};
1075 3410
1076Marks the database as dirty, to be updated at a later time. 3411 my $idx = cf::face::find $face
3412 or next;
1077 3413
1078=item cf::db_sync 3414 if (my $smooth = cf::face::find $info->{smooth}) {
3415 cf::face::set_smooth $idx, $smooth;
3416 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3417 } else {
3418 error "smooth face '$info->{smooth}' not found for face '$face'";
3419 }
1079 3420
1080Immediately write the database to disk I<if it is dirty>. 3421 cf::cede_to_tick;
3422 }
3423 }
1081 3424
1082=cut 3425 {
3426 my $anims = $facedata->{animinfo};
1083 3427
1084our $DB; 3428 while (my ($anim, $info) = each %$anims) {
3429 cf::anim::set $anim, $info->{frames}, $info->{facings};
3430 cf::cede_to_tick;
3431 }
3432
3433 cf::anim::invalidate_all; # d'oh
3434 }
3435
3436 {
3437 my $res = $facedata->{resource};
3438
3439 while (my ($name, $info) = each %$res) {
3440 if (defined $info->{type}) {
3441 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3442
3443 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3444 cf::face::set_type $idx, $info->{type};
3445 } else {
3446 $RESOURCE{$name} = $info; # unused
3447 }
3448
3449 cf::cede_to_tick;
3450 }
3451 }
3452
3453 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3454
3455 1
3456}
3457
3458register_exticmd fx_want => sub {
3459 my ($ns, $want) = @_;
3460
3461 while (my ($k, $v) = each %$want) {
3462 $ns->fx_want ($k, $v);
3463 }
3464};
3465
3466sub load_resource_file($) {
3467 my $guard = lock_acquire "load_resource_file";
3468
3469 my $status = load_resource_file_ $_[0];
3470 get_slot 0.1, 100;
3471 cf::arch::commit_load;
3472
3473 $status
3474}
3475
3476sub reload_regions {
3477 # HACK to clear player env face cache, we need some signal framework
3478 # for this (global event?)
3479 %ext::player_env::MUSIC_FACE_CACHE = ();
3480
3481 load_resource_file "$MAPDIR/regions"
3482 or die "unable to load regions file\n";
3483
3484 for (cf::region::list) {
3485 $_->{match} = qr/$_->{match}/
3486 if exists $_->{match};
3487 }
3488}
3489
3490sub reload_facedata {
3491 load_facedata "$DATADIR/facedata"
3492 or die "unable to load facedata\n";
3493}
3494
3495sub reload_archetypes {
3496 load_resource_file "$DATADIR/archetypes"
3497 or die "unable to load archetypes\n";
3498}
3499
3500sub reload_treasures {
3501 load_resource_file "$DATADIR/treasures"
3502 or die "unable to load treasurelists\n";
3503}
3504
3505sub reload_sound {
3506 trace "loading sound config from $DATADIR/sound\n";
3507
3508 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3509 or die "$DATADIR/sound $!";
3510
3511 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3512
3513 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3514 my $sound = $soundconf->{compat}[$_]
3515 or next;
3516
3517 my $face = cf::face::find "sound/$sound->[1]";
3518 cf::sound::set $sound->[0] => $face;
3519 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3520 }
3521
3522 while (my ($k, $v) = each %{$soundconf->{event}}) {
3523 my $face = cf::face::find "sound/$v";
3524 cf::sound::set $k => $face;
3525 }
3526}
3527
3528sub reload_resources {
3529 trace "reloading resource files...\n";
3530
3531 reload_facedata;
3532 reload_sound;
3533 reload_archetypes;
3534 reload_regions;
3535 reload_treasures;
3536
3537 trace "finished reloading resource files\n";
3538}
3539
3540sub reload_config {
3541 trace "reloading config file...\n";
3542
3543 open my $fh, "<:utf8", "$CONFDIR/config"
3544 or return;
3545
3546 local $/;
3547 *CFG = YAML::XS::Load scalar <$fh>;
3548
3549 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
3550
3551 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3552 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3553
3554 if (exists $CFG{mlockall}) {
3555 eval {
3556 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3557 and die "WARNING: m(un)lockall failed: $!\n";
3558 };
3559 warn $@ if $@;
3560 }
3561
3562 trace "finished reloading resource files\n";
3563}
3564
3565sub pidfile() {
3566 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3567 or die "$PIDFILE: $!";
3568 flock $fh, &Fcntl::LOCK_EX
3569 or die "$PIDFILE: flock: $!";
3570 $fh
3571}
3572
3573# make sure only one server instance is running at any one time
3574sub atomic {
3575 my $fh = pidfile;
3576
3577 my $pid = <$fh>;
3578 kill 9, $pid if $pid > 0;
3579
3580 seek $fh, 0, 0;
3581 print $fh $$;
3582}
3583
3584sub main_loop {
3585 trace "EV::loop starting\n";
3586 if (1) {
3587 EV::loop;
3588 }
3589 trace "EV::loop returned\n";
3590 goto &main_loop unless $REALLY_UNLOOP;
3591}
3592
3593sub main {
3594 cf::init_globals; # initialise logging
3595
3596 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3597 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3598 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3599 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3600
3601 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3602
3603 # we must not ever block the main coroutine
3604 local $Coro::idle = sub {
3605 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3606 (async {
3607 $Coro::current->{desc} = "IDLE BUG HANDLER";
3608 EV::loop EV::LOOP_ONESHOT;
3609 })->prio (Coro::PRIO_MAX);
3610 };
3611
3612 evthread_start IO::AIO::poll_fileno;
3613
3614 cf::sync_job {
3615 cf::init_experience;
3616 cf::init_anim;
3617 cf::init_attackmess;
3618 cf::init_dynamic;
3619
3620 cf::load_settings;
3621 cf::load_materials;
3622
3623 reload_resources;
3624 reload_config;
3625 db_init;
3626
3627 cf::init_uuid;
3628 cf::init_signals;
3629 cf::init_skills;
3630
3631 cf::init_beforeplay;
3632
3633 atomic;
3634
3635 load_extensions;
3636
3637 utime time, time, $RUNTIMEFILE;
3638
3639 # no (long-running) fork's whatsoever before this point(!)
3640 use POSIX ();
3641 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3642
3643 (pop @POST_INIT)->(0) while @POST_INIT;
3644 };
3645
3646 cf::object::thawer::errors_are_fatal 0;
3647 info "parse errors in files are no longer fatal from this point on.\n";
3648
3649 main_loop;
3650}
3651
3652#############################################################################
3653# initialisation and cleanup
3654
3655# install some emergency cleanup handlers
3656BEGIN {
3657 our %SIGWATCHER = ();
3658 for my $signal (qw(INT HUP TERM)) {
3659 $SIGWATCHER{$signal} = AE::signal $signal, sub {
3660 cf::cleanup "SIG$signal";
3661 };
3662 }
3663}
3664
3665sub write_runtime_sync {
3666 my $t0 = AE::time;
3667
3668 # first touch the runtime file to show we are still running:
3669 # the fsync below can take a very very long time.
3670
3671 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3672
3673 my $guard = cf::lock_acquire "write_runtime";
3674
3675 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3676 or return;
3677
3678 my $value = $cf::RUNTIME + 90 + 10;
3679 # 10 is the runtime save interval, for a monotonic clock
3680 # 60 allows for the watchdog to kill the server.
3681
3682 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3683 and return;
3684
3685 # always fsync - this file is important
3686 aio_fsync $fh
3687 and return;
3688
3689 # touch it again to show we are up-to-date
3690 aio_utime $fh, undef, undef;
3691
3692 close $fh
3693 or return;
3694
3695 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3696 and return;
3697
3698 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3699
3700 1
3701}
3702
3703our $uuid_lock;
3704our $uuid_skip;
3705
3706sub write_uuid_sync($) {
3707 $uuid_skip ||= $_[0];
3708
3709 return if $uuid_lock;
3710 local $uuid_lock = 1;
3711
3712 my $uuid = "$LOCALDIR/uuid";
3713
3714 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3715 or return;
3716
3717 my $value = uuid_seq uuid_cur;
3718
3719 unless ($value) {
3720 info "cowardly refusing to write zero uuid value!\n";
3721 return;
3722 }
3723
3724 my $value = uuid_str $value + $uuid_skip;
3725 $uuid_skip = 0;
3726
3727 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3728 and return;
3729
3730 # always fsync - this file is important
3731 aio_fsync $fh
3732 and return;
3733
3734 close $fh
3735 or return;
3736
3737 aio_rename "$uuid~", $uuid
3738 and return;
3739
3740 trace "uuid file written ($value).\n";
3741
3742 1
3743
3744}
3745
3746sub write_uuid($$) {
3747 my ($skip, $sync) = @_;
3748
3749 $sync ? write_uuid_sync $skip
3750 : async { write_uuid_sync $skip };
3751}
3752
3753sub emergency_save() {
3754 my $freeze_guard = cf::freeze_mainloop;
3755
3756 info "emergency_perl_save: enter\n";
3757
3758 # this is a trade-off: we want to be very quick here, so
3759 # save all maps without fsync, and later call a global sync
3760 # (which in turn might be very very slow)
3761 local $USE_FSYNC = 0;
3762
3763 cf::sync_job {
3764 cf::write_runtime_sync; # external watchdog should not bark
3765
3766 # use a peculiar iteration method to avoid tripping on perl
3767 # refcount bugs in for. also avoids problems with players
3768 # and maps saved/destroyed asynchronously.
3769 info "emergency_perl_save: begin player save\n";
3770 for my $login (keys %cf::PLAYER) {
3771 my $pl = $cf::PLAYER{$login} or next;
3772 $pl->valid or next;
3773 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3774 $pl->save;
3775 }
3776 info "emergency_perl_save: end player save\n";
3777
3778 cf::write_runtime_sync; # external watchdog should not bark
3779
3780 info "emergency_perl_save: begin map save\n";
3781 for my $path (keys %cf::MAP) {
3782 my $map = $cf::MAP{$path} or next;
3783 $map->valid or next;
3784 $map->save;
3785 }
3786 info "emergency_perl_save: end map save\n";
3787
3788 cf::write_runtime_sync; # external watchdog should not bark
3789
3790 info "emergency_perl_save: begin database checkpoint\n";
3791 BDB::db_env_txn_checkpoint $DB_ENV;
3792 info "emergency_perl_save: end database checkpoint\n";
3793
3794 info "emergency_perl_save: begin write uuid\n";
3795 write_uuid_sync 1;
3796 info "emergency_perl_save: end write uuid\n";
3797
3798 cf::write_runtime_sync; # external watchdog should not bark
3799
3800 trace "emergency_perl_save: syncing database to disk";
3801 BDB::db_env_txn_checkpoint $DB_ENV;
3802
3803 info "emergency_perl_save: starting sync\n";
3804 IO::AIO::aio_sync sub {
3805 info "emergency_perl_save: finished sync\n";
3806 };
3807
3808 cf::write_runtime_sync; # external watchdog should not bark
3809
3810 trace "emergency_perl_save: flushing outstanding aio requests";
3811 while (IO::AIO::nreqs || BDB::nreqs) {
3812 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3813 }
3814
3815 cf::write_runtime_sync; # external watchdog should not bark
3816 };
3817
3818 info "emergency_perl_save: leave\n";
3819}
3820
3821sub post_cleanup {
3822 my ($make_core) = @_;
3823
3824 IO::AIO::flush;
3825
3826 error Carp::longmess "post_cleanup backtrace"
3827 if $make_core;
3828
3829 my $fh = pidfile;
3830 unlink $PIDFILE if <$fh> == $$;
3831}
3832
3833# a safer delete_package, copied from Symbol
3834sub clear_package($) {
3835 my $pkg = shift;
3836
3837 # expand to full symbol table name if needed
3838 unless ($pkg =~ /^main::.*::$/) {
3839 $pkg = "main$pkg" if $pkg =~ /^::/;
3840 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3841 $pkg .= '::' unless $pkg =~ /::$/;
3842 }
3843
3844 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3845 my $stem_symtab = *{$stem}{HASH};
3846
3847 defined $stem_symtab and exists $stem_symtab->{$leaf}
3848 or return;
3849
3850 # clear all symbols
3851 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3852 for my $name (keys %$leaf_symtab) {
3853 _gv_clear *{"$pkg$name"};
3854# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3855 }
3856}
3857
3858sub do_reload_perl() {
3859 # can/must only be called in main
3860 if (in_main) {
3861 error "can only reload from main coroutine";
3862 return;
3863 }
3864
3865 return if $RELOAD++;
3866
3867 my $t1 = AE::time;
3868
3869 while ($RELOAD) {
3870 info "reloading...";
3871
3872 trace "entering sync_job";
3873
3874 cf::sync_job {
3875 cf::emergency_save;
3876
3877 trace "cancelling all extension coros";
3878 $_->cancel for values %EXT_CORO;
3879 %EXT_CORO = ();
3880
3881 trace "removing commands";
3882 %COMMAND = ();
3883
3884 trace "removing ext/exti commands";
3885 %EXTCMD = ();
3886 %EXTICMD = ();
3887
3888 trace "unloading/nuking all extensions";
3889 for my $pkg (@EXTS) {
3890 trace "... unloading $pkg";
3891
3892 if (my $cb = $pkg->can ("unload")) {
3893 eval {
3894 $cb->($pkg);
3895 1
3896 } or error "$pkg unloaded, but with errors: $@";
3897 }
3898
3899 trace "... clearing $pkg";
3900 clear_package $pkg;
3901 }
3902
3903 trace "unloading all perl modules loaded from $LIBDIR";
3904 while (my ($k, $v) = each %INC) {
3905 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3906
3907 trace "... unloading $k";
3908 delete $INC{$k};
3909
3910 $k =~ s/\.pm$//;
3911 $k =~ s/\//::/g;
3912
3913 if (my $cb = $k->can ("unload_module")) {
3914 $cb->();
3915 }
3916
3917 clear_package $k;
3918 }
3919
3920 trace "getting rid of safe::, as good as possible";
3921 clear_package "safe::$_"
3922 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3923
3924 trace "unloading cf.pm \"a bit\"";
3925 delete $INC{"cf.pm"};
3926 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3927
3928 # don't, removes xs symbols, too,
3929 # and global variables created in xs
3930 #clear_package __PACKAGE__;
3931
3932 info "unload completed, starting to reload now";
3933
3934 trace "reloading cf.pm";
3935 require cf;
3936 cf::_connect_to_perl_1;
3937
3938 trace "loading config and database again";
3939 cf::reload_config;
3940
3941 trace "loading extensions";
3942 cf::load_extensions;
3943
3944 if ($REATTACH_ON_RELOAD) {
3945 trace "reattaching attachments to objects/players";
3946 _global_reattach; # objects, sockets
3947 trace "reattaching attachments to maps";
3948 reattach $_ for values %MAP;
3949 trace "reattaching attachments to players";
3950 reattach $_ for values %PLAYER;
3951 }
3952
3953 trace "running post_init jobs";
3954 (pop @POST_INIT)->(1) while @POST_INIT;
3955
3956 trace "leaving sync_job";
3957
3958 1
3959 } or do {
3960 error $@;
3961 cf::cleanup "error while reloading, exiting.";
3962 };
3963
3964 info "reloaded";
3965 --$RELOAD;
3966 }
3967
3968 $t1 = AE::time - $t1;
3969 info "reload completed in ${t1}s\n";
3970};
3971
3972our $RELOAD_WATCHER; # used only during reload
3973
3974sub reload_perl() {
3975 # doing reload synchronously and two reloads happen back-to-back,
3976 # coro crashes during coro_state_free->destroy here.
3977
3978 $RELOAD_WATCHER ||= cf::async {
3979 Coro::AIO::aio_wait cache_extensions;
3980
3981 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
3982 do_reload_perl;
3983 undef $RELOAD_WATCHER;
3984 };
3985 };
3986}
3987
3988register_command "reload" => sub {
3989 my ($who, $arg) = @_;
3990
3991 if ($who->flag (FLAG_WIZ)) {
3992 $who->message ("reloading server.");
3993 async {
3994 $Coro::current->{desc} = "perl_reload";
3995 reload_perl;
3996 };
3997 }
3998};
3999
4000unshift @INC, $LIBDIR;
4001
4002my $bug_warning = 0;
4003
4004our @WAIT_FOR_TICK;
4005our @WAIT_FOR_TICK_BEGIN;
4006
4007sub wait_for_tick {
4008 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4009
4010 my $signal = new Coro::Signal;
4011 push @WAIT_FOR_TICK, $signal;
4012 $signal->wait;
4013}
4014
4015sub wait_for_tick_begin {
4016 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4017
4018 my $signal = new Coro::Signal;
4019 push @WAIT_FOR_TICK_BEGIN, $signal;
4020 $signal->wait;
4021}
4022
4023sub tick {
4024 if ($Coro::current != $Coro::main) {
4025 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
4026 unless ++$bug_warning > 10;
4027 return;
4028 }
4029
4030 cf::server_tick; # one server iteration
4031
4032 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
4033
4034 if ($NOW >= $NEXT_RUNTIME_WRITE) {
4035 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
4036 Coro::async_pool {
4037 $Coro::current->{desc} = "runtime saver";
4038 write_runtime_sync
4039 or error "ERROR: unable to write runtime file: $!";
4040 };
4041 }
4042
4043 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4044 $sig->send;
4045 }
4046 while (my $sig = shift @WAIT_FOR_TICK) {
4047 $sig->send;
4048 }
4049
4050 $LOAD = ($NOW - $TICK_START) / $TICK;
4051 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4052
4053 if (0) {
4054 if ($NEXT_TICK) {
4055 my $jitter = $TICK_START - $NEXT_TICK;
4056 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4057 debug "jitter $JITTER\n";#d#
4058 }
4059 }
4060}
1085 4061
1086{ 4062{
1087 my $path = cf::localdir . "/database.pst"; 4063 # configure BDB
1088 4064
1089 sub db_load() { 4065 BDB::min_parallel 16;
1090 warn "loading database $path\n";#d# remove later 4066 BDB::max_poll_reqs $TICK * 0.1;
1091 $DB = stat $path ? Storable::retrieve $path : { }; 4067 $AnyEvent::BDB::WATCHER->priority (1);
1092 }
1093 4068
1094 my $pid; 4069 unless ($DB_ENV) {
4070 $DB_ENV = BDB::db_env_create;
4071 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4072 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4073 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4074 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4075 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1095 4076
1096 sub db_save() { 4077 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 { 4078 eval {
1133 $DB->{$_[0]} = $_[1]; 4079 BDB::db_env_open
1134 } 4080 $DB_ENV,
1135 db_dirty; 4081 $BDBDIR,
1136 } 4082 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
4083 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
4084 0666;
1137 4085
1138 cf::global->attach ( 4086 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 } 4087 };
1197 4088
1198 Symbol::delete_package $k; 4089 cf::cleanup "db_env_open(db): $@" if $@;
1199 } 4090 };
4091 }
1200 4092
1201 # sync database to disk 4093 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1202 cf::db_sync; 4094 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 }; 4095 };
1234 $msg->($@) if $@; 4096 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1235 4097 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 }; 4098 };
4099 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4100 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4101 };
1244} 4102}
1245 4103
1246register "<global>", __PACKAGE__; 4104{
4105 # configure IO::AIO
1247 4106
1248register_command "perl-reload" => sub { 4107 IO::AIO::min_parallel 8;
4108 IO::AIO::max_poll_time $TICK * 0.1;
4109 undef $AnyEvent::AIO::WATCHER;
4110}
4111
4112my $_log_backtrace;
4113
4114sub _log_backtrace {
1249 my ($who, $arg) = @_; 4115 my ($msg, @addr) = @_;
1250 4116
1251 if ($who->flag (FLAG_WIZ)) { 4117 $msg =~ s/\n//;
1252 _perl_reload { 4118
1253 warn $_[0]; 4119 # limit the # of concurrent backtraces
1254 $who->message ($_[0]); 4120 if ($_log_backtrace < 2) {
4121 ++$_log_backtrace;
4122 my $perl_bt = Carp::longmess $msg;
4123 async {
4124 $Coro::current->{desc} = "abt $msg";
4125
4126 my @bt = fork_call {
4127 @addr = map { sprintf "%x", $_ } @addr;
4128 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4129 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4130 or die "addr2line: $!";
4131
4132 my @funcs;
4133 my @res = <$fh>;
4134 chomp for @res;
4135 while (@res) {
4136 my ($func, $line) = splice @res, 0, 2, ();
4137 push @funcs, "[$func] $line";
4138 }
4139
4140 @funcs
4141 };
4142
4143 LOG llevInfo, "[ABT] $perl_bt\n";
4144 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4145 LOG llevInfo, "[ABT] $_\n" for @bt;
4146 --$_log_backtrace;
1255 }; 4147 };
1256 } 4148 } else {
1257}; 4149 LOG llevInfo, "[ABT] $msg\n";
1258 4150 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 }, 4151 }
1277); 4152}
1278 4153
1279IO::AIO::max_poll_time $TICK * 0.2; 4154# load additional modules
4155require "cf/$_.pm" for @EXTRA_MODULES;
4156cf::_connect_to_perl_2;
1280 4157
1281Event->io (fd => IO::AIO::poll_fileno, 4158END { cf::emergency_save }
1282 poll => 'r',
1283 prio => 5,
1284 data => WF_AUTOCANCEL,
1285 cb => \&IO::AIO::poll_cb);
1286 4159
12871 41601
1288 4161

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