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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.508 by root, Sun Mar 28 22:29:50 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
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3;	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
20	use Fcntl;	58	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
23	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
24		64
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
26		66
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
28	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29		71
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::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" };
31		80
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		82
34	our %COMMAND = ();	83	our %COMMAND = ();
35	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
37		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
38	our @EVENT;	93	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
40		96
41	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
42	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	115	our $NEXT_TICK;
44	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
45		124
46	our %CFG;	125	our %CFG;
47		126
48	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
50		130
51	our %MAP; # all maps	131	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	132	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	133	our $LINK_MAP; # the special {link} map, which is always available
		134
		135	# used to convert map paths into valid unix filenames by replacing / by ∕
		136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
54		147
55	binmode STDOUT;	148	binmode STDOUT;
56	binmode STDERR;	149	binmode STDERR;
57		150
58	# read virtual server time, if available	151	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
60	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
61	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
62	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
63	}	156	}
64		157
65	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
66	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		159
70	our %EXT_CORO;	160	mkdir $_
		161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
		163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
71		177
72	#############################################################################	178	#############################################################################
73		179
74	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
75		181
…		…
82	=item $cf::RUNTIME	188	=item $cf::RUNTIME
83		189
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	191	every server tick.
86		192
87	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		196
89	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
91		201
92	=item $cf::NOW	202	=item $cf::NOW
93		203
94	The time of the last (current) server tick.	204	The time of the last (current) server tick.
95		205
96	=item $cf::TICK	206	=item $cf::TICK
97		207
98	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
99		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
100	=item %cf::CFG	220	=item %cf::CFG
101		221
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	223	from wherever your confdir points to.
104		224
		225	=item cf::wait_for_tick, cf::wait_for_tick_begin
		226
		227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		228	returns directly I<after> the tick processing (and consequently, can only wake one process
		229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
105	=back	243	=back
106		244
107	=cut	245	=cut
108		246
109	BEGIN {	247	$Coro::State::WARNHOOK = sub {
110	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	248	my $msg = join "", @_;
112	utf8::encode $msg;
113		249
114	$msg .= "\n"	250	$msg .= "\n"
115	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
116		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
117	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
118	};	256	};
119	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
120		271
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		279
128	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	281	# within the Safe compartment.
130	for my $pkg (qw(	282	for my $pkg (qw(
131	cf::global cf::attachable	283	cf::global cf::attachable
132	cf::object cf::object::player	284	cf::object cf::object::player
133	cf::client cf::player	285	cf::client cf::player
134	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
135	cf::map cf::party cf::region	288	cf::party cf::region
136	)) {	289	)) {
137	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	291	}
140		292
141	$Event::DIED = sub {	293	$EV::DIED = sub {
142	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
143	};	295	};
144		296
145	my %ext_pkg;	297	#############################################################################
146	my @exts;
147	my @hook;
148		298
149	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
150		300
151	=over 4	301	=over 4
152		302
153	=cut	303	=item dumpval $ref
154		304
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
156		306
		307	sub dumpval {
		308	eval {
		309	local $SIG{__DIE__};
		310	my $d;
		311	if (1) {
		312	$d = new Data::Dumper([$_[0]], ["*var"]);
		313	$d->Terse(1);
		314	$d->Indent(2);
		315	$d->Quotekeys(0);
		316	$d->Useqq(1);
		317	#$d->Bless(...);
		318	$d->Seen($_[1]) if @_ > 1;
		319	$d = $d->Dump();
		320	}
		321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		322	$d
		323	} || "[unable to dump $_[0]: '$@']";
		324	}
		325
157	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
158		327
159	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
160		329
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
169		331
170	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
171		333
172	=cut	334	=cut
173		335
174	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		337
179	# main coro must never ever "block" except in Event	338	sub encode_json($) { $json_coder->encode ($_[0]) }
180	# sync_job ensures this by running the job in a coroutine	339	sub decode_json($) { $json_coder->decode ($_[0]) }
181	# and waiting in Event while the server is otherwise frozen	340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
		355	=item cf::lock_wait $string
		356
		357	Wait until the given lock is available. See cf::lock_acquire.
		358
		359	=item my $lock = cf::lock_acquire $string
		360
		361	Wait until the given lock is available and then acquires it and returns
		362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		363	for example when the coroutine gets canceled), the lock is automatically
		364	returned.
		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
		369	Lock names should begin with a unique identifier (for example, cf::map::find
		370	uses map_find and cf::map::load uses map_load).
		371
		372	=item $locked = cf::lock_active $string
		373
		374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
		379
		380	sub lock_wait($) {
		381	$LOCKS->wait ($_[0]);
		382	}
		383
		384	sub lock_acquire($) {
		385	$LOCKS->guard ($_[0])
		386	}
		387
		388	sub lock_active($) {
		389	$LOCKS->count ($_[0]) < 1
		390	}
		391
		392	sub freeze_mainloop {
		393	tick_inhibit_inc;
		394
		395	&Guard::guard (\&tick_inhibit_dec);
		396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
		462	}
		463	};
		464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
		478	}
		479
		480	=item cf::async { BLOCK }
		481
		482	Currently the same as Coro::async_pool, meaning you cannot use
		483	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		484	thing you are allowed to do is call C<prio> on it.
		485
		486	=cut
		487
		488	BEGIN { *async = \&Coro::async_pool }
		489
		490	=item cf::sync_job { BLOCK }
		491
		492	The design of Deliantra requires that the main coroutine ($Coro::main)
		493	is always able to handle events or runnable, as Deliantra is only
		494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
		496
		497	If it must be done, put the blocking parts into C<sync_job>. This will run
		498	the given BLOCK in another coroutine while waiting for the result. The
		499	server will be frozen during this time, so the block should either finish
		500	fast or be very important.
		501
		502	=cut
		503
182	sub sync_job(&) {	504	sub sync_job(&) {
183	my ($job) = @_;	505	my ($job) = @_;
184		506
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
		510	# this is the main coro, too bad, we have to block
		511	# till the operation succeeds, freezing the server :/
		512
		513	LOG llevError, Carp::longmess "sync job";#d#
		514
		515	my $freeze_guard = freeze_mainloop;
		516
		517	my $busy = 1;
		518	my @res;
		519
		520	(async {
		521	$Coro::current->desc ("sync job coro");
		522	@res = eval { $job->() };
		523	warn $@ if $@;
		524	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
		526
198	while ($busy) {	527	while ($busy) {
		528	if (Coro::nready) {
199	Coro::cede_notself;	529	Coro::cede_notself;
200	Event::one_event unless Coro::nready;	530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
201	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
		538
		539	wantarray ? @res : $res[0]
202	} else {	540	} else {
203	$coro->join;	541	# we are in another coroutine, how wonderful, everything just works
		542
		543	$job->()
204	}	544	}
205
206	wantarray ? @res : $res[0]
207	}	545	}
208		546
209	=item $coro = cf::coro { BLOCK }	547	=item $coro = cf::async_ext { BLOCK }
210		548
211	Creates and returns a new coro. This coro is automcatially being canceled	549	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	550	extension calling this is being unloaded.
213		551
214	=cut	552	=cut
215		553
216	sub coro(&) {	554	sub async_ext(&) {
217	my $cb = shift;	555	my $cb = shift;
218		556
219	my $coro; $coro = async {	557	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		558
226	$coro->on_destroy (sub {	559	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	560	delete $EXT_CORO{$coro+0};
228	});	561	});
229	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
230		563
231	$coro	564	$coro
232	}	565	}
233		566
		567	=item fork_call { }, $args
		568
		569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
		573
		574	=cut
		575
		576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
		578
		579	# we seemingly have to make a local copy of the whole thing,
		580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
		582
		583	my @res = Coro::Util::fork_eval {
		584	reset_signals;
		585	&$cb
		586	}, @args;
		587
		588	wantarray ? @res : $res[-1]
		589	}
		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
		667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		754	}
		755
234	=back	756	=back
235		757
236	=cut	758	=cut
237		759
238	#############################################################################	760	#############################################################################
239		761
240	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
241		763
242	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
243	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
244	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
245		767
246	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
247	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
248	crossfire+).	770	Deliantra).
249		771
250	=over 4	772	=over 4
251		773
252	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
253		775
…		…
297	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
298		820
299	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
300	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
301		823
302	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
303	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
304		826
305	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
306		828
307	=over 4	829	=over 4
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	889	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	890	our @CB_MAP = ();
369		891
370	my %attachment;	892	my %attachment;
371		893
		894	sub cf::attachable::thawer_merge {
		895	# simply override everything except _meta
		896	local $_[0]{_meta};
		897	%{$_[0]} = %{$_[1]};
		898	}
		899
372	sub _attach_cb($$$$) {	900	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	901	my ($registry, $event, $prio, $cb) = @_;
374		902
375	use sort 'stable';	903	use sort 'stable';
376		904
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
411		939
412	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		944
417	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	946	my $pkg = shift @arg;
419		947
420	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
449	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
450	}	978	}
451		979
452	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
453	} else {	981	} else {
454	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
455	}	983	}
456		984
457	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
458	}	986	}
459		987
…		…
461	if (ref $_[0]) {	989	if (ref $_[0]) {
462	_object_attach @_;	990	_object_attach @_;
463	} else {	991	} else {
464	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
465	}	993	}
		994	_recalc_want;
466	};	995	};
467		996
468	# all those should be optimised	997	# all those should be optimised
469	sub cf::attachable::detach {	998	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
474	reattach ($obj);	1003	reattach ($obj);
475	} else {	1004	} else {
476	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
477	}	1006	}
		1007	_recalc_want;
478	};	1008	};
479		1009
480	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
482		1012
…		…
497	";	1027	";
498	die if $@;	1028	die if $@;
499	}	1029	}
500		1030
501	our $override;	1031	our $override;
502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
503		1033
504	sub override {	1034	sub override {
505	$override = 1;	1035	$override = 1;
506	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
507	}	1037	}
508		1038
509	sub do_invoke {	1039	sub do_invoke {
510	my $event = shift;	1040	my $event = shift;
511	my $callbacks = shift;	1041	my $callbacks = shift;
512		1042
513	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
514		1044
515	local $override;	1045	local $override;
516		1046
517	for (@$callbacks) {	1047	for (@$callbacks) {
518	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
527	}	1057	}
528		1058
529	0	1059	0
530	}	1060	}
531		1061
532	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
533		1063
534	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
535		1065
536	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
537		1067
538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
539	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
540	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
541		1071
542	=back	1072	=back
543		1073
544	=cut	1074	=cut
545		1075
546	#############################################################################	1076	#############################################################################
547	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
548		1120
549	sub reattach {	1121	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	1123	my ($obj) = @_;
		1124
		1125	# no longer needed after getting rid of delete_package?
		1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		1127
553	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
554		1129
555	@$registry = ();	1130	@$registry = ();
556		1131
…		…
571	cf::attachable->attach (	1146	cf::attachable->attach (
572	prio => -1000000,	1147	prio => -1000000,
573	on_instantiate => sub {	1148	on_instantiate => sub {
574	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
575		1150
576	$data = from_json $data;	1151	$data = decode_json $data;
577		1152
578	for (@$data) {	1153	for (@$data) {
579	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
580		1155
581	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
597	sub object_freezer_save {	1172	sub object_freezer_save {
598	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
599		1174
600	sync_job {	1175	sync_job {
601	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
602	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
603	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
604		1180
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	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;
608	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
609	close $fh;	1188	aio_close $fh;
610		1189
611	if (@$objs) {	1190	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
		1195	if ($cf::USE_FSYNC) {
		1196	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;
616	aio_fsync $fh;	1197	aio_fsync $fh;
		1198	}
617	close $fh;	1199	aio_close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
619	}	1201	}
620	} else {	1202	} else {
621	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
622	}	1204	}
623		1205
624	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
625	} else {	1210	} else {
626	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
627	}	1212	}
628	} else {	1213	} else {
629	aio_unlink $filename;	1214	aio_unlink $filename;
630	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
631	}	1216	}
632	}	1217	};
633	}	1218	}
634		1219
635	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
637		1222
…		…
649	or return;	1234	or return;
650		1235
651	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
653	or return;	1238	or return;
		1239
654	$av = eval { (Storable::thaw <$av>)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
655	}	1242	}
656		1243
		1244	utf8::decode (my $decname = $filename);
		1245	warn sprintf "loading %s (%d,%d)\n",
		1246	$decname, length $data, scalar @{$av || []};
		1247
657	return ($data, $av);	1248	($data, $av)
658	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
659		1256
660	#############################################################################	1257	#############################################################################
661	# command handling &c	1258	# command handling &c
662		1259
663	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
676	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
677	}	1274	}
678		1275
679	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
680		1277
681	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
682		1283
683	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
684	called.	1285	called.
685		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
686	=cut	1298	=cut
687		1299
688	sub register_extcmd {	1300	sub register_extcmd {
689	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
690		1302
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	1303	$EXTCMD{$name} = $cb;
695	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
696		1313
697	cf::player->attach (	1314	cf::player->attach (
698	on_command => sub {	1315	on_command => sub {
699	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
700		1317
…		…
708	cf::override;	1325	cf::override;
709	},	1326	},
710	on_extcmd => sub {	1327	on_extcmd => sub {
711	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
712		1329
713	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
714		1331
715	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
718	$pl->ext_reply ($msg->{msgid}, %reply);
719	}
720	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
721	} else {	1347	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1349	}
724		1350
725	cf::override;	1351	cf::override;
726	},	1352	},
727	);	1353	);
728		1354
		1355	# "readahead" all extensions
		1356	sub cache_extensions {
		1357	my $grp = IO::AIO::aio_group;
		1358
		1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1360	for (grep /\.ext$/, @{$_[0]}) {
		1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1362	}
		1363	};
		1364
		1365	$grp
		1366	}
		1367
		1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
		1372	for my $path (<$LIBDIR/*.ext>) {
		1373	next unless -r $path;
		1374
		1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
		1435	}
		1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
		1446	};
		1447	}
		1448
		1449	#############################################################################
		1450
		1451	=back
		1452
		1453	=head2 CORE EXTENSIONS
		1454
		1455	Functions and methods that extend core deliantra objects.
		1456
		1457	=cut
		1458
		1459	package cf::player;
		1460
		1461	use Coro::AIO;
		1462
		1463	=head3 cf::player
		1464
		1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
		1480
		1481	=item cf::player::find $login
		1482
		1483	Returns the given player object, loading it if necessary (might block).
		1484
		1485	=cut
		1486
		1487	sub playerdir($) {
		1488	"$PLAYERDIR/"
		1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1490	}
		1491
		1492	sub path($) {
		1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1494
		1495	(playerdir $login) . "/playerdata"
		1496	}
		1497
		1498	sub find_active($) {
		1499	$cf::PLAYER{$_[0]}
		1500	and $cf::PLAYER{$_[0]}->active
		1501	and $cf::PLAYER{$_[0]}
		1502	}
		1503
		1504	sub exists($) {
		1505	my ($login) = @_;
		1506
		1507	$cf::PLAYER{$login}
		1508	or !aio_stat path $login
		1509	}
		1510
		1511	sub find($) {
		1512	return $cf::PLAYER{$_[0]} || do {
		1513	my $login = $_[0];
		1514
		1515	my $guard = cf::lock_acquire "user_find:$login";
		1516
		1517	$cf::PLAYER{$_[0]} || do {
		1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
		1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
		1533	$cf::PLAYER{$login} = $pl
		1534	}
		1535	}
		1536	}
		1537
		1538	sub save($) {
		1539	my ($pl) = @_;
		1540
		1541	return if $pl->{deny_save};
		1542
		1543	my $path = path $pl;
		1544	my $guard = cf::lock_acquire "user_save:$path";
		1545
		1546	return if $pl->{deny_save};
		1547
		1548	aio_mkdir playerdir $pl, 0770;
		1549	$pl->{last_save} = $cf::RUNTIME;
		1550
		1551	cf::get_slot 0.01;
		1552
		1553	$pl->save_pl ($path);
		1554	cf::cede_to_tick;
		1555	}
		1556
		1557	sub new($) {
		1558	my ($login) = @_;
		1559
		1560	my $self = create;
		1561
		1562	$self->ob->name ($login);
		1563	$self->{deny_save} = 1;
		1564
		1565	$cf::PLAYER{$login} = $self;
		1566
		1567	$self
		1568	}
		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
		1580	=item $pl->quit_character
		1581
		1582	Nukes the player without looking back. If logged in, the connection will
		1583	be destroyed. May block for a long time.
		1584
		1585	=cut
		1586
		1587	sub quit_character {
		1588	my ($pl) = @_;
		1589
		1590	my $name = $pl->ob->name;
		1591
		1592	$pl->{deny_save} = 1;
		1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1594
		1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
		1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1600	$pl->ns->destroy if $pl->ns;
		1601
		1602	my $path = playerdir $pl;
		1603	my $temp = "$path~$cf::RUNTIME~deleting~";
		1604	aio_rename $path, $temp;
		1605	delete $cf::PLAYER{$pl->ob->name};
		1606	$pl->destroy;
		1607
		1608	my $prefix = qr<^~\Q$name\E/>;
		1609
		1610	# nuke player maps
		1611	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1612
		1613	IO::AIO::aio_rmtree $temp;
		1614	}
		1615
		1616	=item $pl->kick
		1617
		1618	Kicks a player out of the game. This destroys the connection.
		1619
		1620	=cut
		1621
		1622	sub kick {
		1623	my ($pl, $kicker) = @_;
		1624
		1625	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1626	$pl->killer ("kicked");
		1627	$pl->ns->destroy;
		1628	}
		1629
		1630	=item cf::player::list_logins
		1631
		1632	Returns am arrayref of all valid playernames in the system, can take a
		1633	while and may block, so not sync_job-capable, ever.
		1634
		1635	=cut
		1636
		1637	sub list_logins {
		1638	my $dirs = aio_readdir $PLAYERDIR
		1639	or return [];
		1640
		1641	my @logins;
		1642
		1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
		1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1650	aio_read $fh, 0, 512, my $buf, 0 or next;
		1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
		1653
		1654	utf8::decode $login;
		1655	push @logins, $login;
		1656	}
		1657
		1658	\@logins
		1659	}
		1660
		1661	=item $player->maps
		1662
		1663	Returns an arrayref of map paths that are private for this
		1664	player. May block.
		1665
		1666	=cut
		1667
		1668	sub maps($) {
		1669	my ($pl) = @_;
		1670
		1671	$pl = ref $pl ? $pl->ob->name : $pl;
		1672
		1673	my $files = aio_readdir playerdir $pl
		1674	or return;
		1675
		1676	my @paths;
		1677
		1678	for (@$files) {
		1679	utf8::decode $_;
		1680	next if /\.(?:pl|pst)$/;
		1681	next unless /^$PATH_SEP/o;
		1682
		1683	push @paths, cf::map::normalise "~$pl/$_";
		1684	}
		1685
		1686	\@paths
		1687	}
		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
		1693	=item $player->ext_reply ($msgid, @msg)
		1694
		1695	Sends an ext reply to the player.
		1696
		1697	=cut
		1698
		1699	sub ext_reply($$@) {
		1700	my ($self, $id, @msg) = @_;
		1701
		1702	$self->ns->ext_reply ($id, @msg)
		1703	}
		1704
		1705	=item $player->ext_msg ($type, @msg)
		1706
		1707	Sends an ext event to the client.
		1708
		1709	=cut
		1710
		1711	sub ext_msg($$@) {
		1712	my ($self, $type, @msg) = @_;
		1713
		1714	$self->ns->ext_msg ($type, @msg);
		1715	}
		1716
		1717	=head3 cf::region
		1718
		1719	=over 4
		1720
		1721	=cut
		1722
		1723	package cf::region;
		1724
		1725	=item cf::region::find_by_path $path
		1726
		1727	Tries to decuce the likely region for a map knowing only its path.
		1728
		1729	=cut
		1730
		1731	sub find_by_path($) {
		1732	my ($path) = @_;
		1733
		1734	my ($match, $specificity);
		1735
		1736	for my $region (list) {
		1737	if ($region->{match} && $path =~ $region->{match}) {
		1738	($match, $specificity) = ($region, $region->specificity)
		1739	if $region->specificity > $specificity;
		1740	}
		1741	}
		1742
		1743	$match
		1744	}
		1745
		1746	=back
		1747
		1748	=head3 cf::map
		1749
		1750	=over 4
		1751
		1752	=cut
		1753
		1754	package cf::map;
		1755
		1756	use Fcntl;
		1757	use Coro::AIO;
		1758
		1759	use overload
		1760	'""' => \&as_string,
		1761	fallback => 1;
		1762
		1763	our $MAX_RESET = 3600;
		1764	our $DEFAULT_RESET = 3000;
		1765
		1766	sub generate_random_map {
		1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
		1771	# mit "rum" bekleckern, nicht
		1772	$self->_create_random_map (
		1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
		1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1776	$rmp->{exit_on_final_map},
		1777	$rmp->{xsize}, $rmp->{ysize},
		1778	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1779	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1780	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1781	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1782	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1783	(cf::region::find $rmp->{region}), $rmp->{custom}
		1784	)
		1785	}
		1786
		1787	=item cf::map->register ($regex, $prio)
		1788
		1789	Register a handler for the map path matching the given regex at the
		1790	givne priority (higher is better, built-in handlers have priority 0, the
		1791	default).
		1792
		1793	=cut
		1794
729	sub register {	1795	sub register {
		1796	my (undef, $regex, $prio) = @_;
		1797	my $pkg = caller;
		1798
		1799	no strict;
		1800	push @{"$pkg\::ISA"}, __PACKAGE__;
		1801
		1802	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1803	}
		1804
		1805	# also paths starting with '/'
		1806	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1807
		1808	sub thawer_merge {
730	my ($base, $pkg) = @_;	1809	my ($self, $merge) = @_;
731		1810
732	#TODO	1811	# we have to keep some variables in memory intact
733	}	1812	local $self->{path};
		1813	local $self->{load_path};
734		1814
735	sub load_extension {	1815	$self->SUPER::thawer_merge ($merge);
		1816	}
		1817
		1818	sub normalise {
736	my ($path) = @_;	1819	my ($path, $base) = @_;
737		1820
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1821	$path = "$path"; # make sure its a string
739	my $base = $1;
740	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";
743		1822
744	warn "loading '$path' into '$pkg'\n";	1823	$path =~ s/\.map$//;
745		1824
746	open my $fh, "<:utf8", $path	1825	# map plan:
747	or die "$path: $!";	1826	#
		1827	# /! non-realised random map exit (special hack!)
		1828	# {... are special paths that are not being touched
		1829	# ?xxx/... are special absolute paths
		1830	# ?random/... random maps
		1831	# /... normal maps
		1832	# ~user/... per-player map of a specific user
748		1833
749	my $source =	1834	$path =~ s/$PATH_SEP/\//go;
750	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })
753	. "\n};\n1";
754		1835
755	eval $source	1836	# treat it as relative path if it starts with
756	or die $@ ? "$path: $@\n"	1837	# something that looks reasonable
757	: "extension disabled.\n";	1838	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1839	$base or Carp::carp "normalise called with relative path and no base: '$path'";
758		1840
759	push @exts, $pkg;	1841	$base =~ s{[^/]+/?$}{};
760	$ext_pkg{$base} = $pkg;	1842	$path = "$base/$path";
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	1843	}
778		1844
779	# remove commands	1845	for ($path) {
780	for my $name (keys %COMMAND) {	1846	redo if s{//}{/};
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1847	redo if s{/\.?/}{/};
		1848	redo if s{/[^/]+/\.\./}{/};
		1849	}
782		1850
783	if (@cb) {	1851	$path
784	$COMMAND{$name} = \@cb;	1852	}
		1853
		1854	sub new_from_path {
		1855	my (undef, $path, $base) = @_;
		1856
		1857	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1858
		1859	$path = normalise $path, $base;
		1860
		1861	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1862	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1863	my $self = bless cf::map::new, $pkg;
		1864	$self->{path} = $path; $self->path ($path);
		1865	$self->init; # pass $1 etc.
		1866	return $self;
		1867	}
		1868	}
		1869
		1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1871	()
		1872	}
		1873
		1874	sub init {
		1875	my ($self) = @_;
		1876
		1877	$self
		1878	}
		1879
		1880	sub as_string {
		1881	my ($self) = @_;
		1882
		1883	"$self->{path}"
		1884	}
		1885
		1886	# the displayed name, this is a one way mapping
		1887	sub visible_name {
		1888	&as_string
		1889	}
		1890
		1891	# the original (read-only) location
		1892	sub load_path {
		1893	my ($self) = @_;
		1894
		1895	"$MAPDIR/$self->{path}.map"
		1896	}
		1897
		1898	# the temporary/swap location
		1899	sub save_path {
		1900	my ($self) = @_;
		1901
		1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1903	"$TMPDIR/$path.map"
		1904	}
		1905
		1906	# the unique path, undef == no special unique path
		1907	sub uniq_path {
		1908	my ($self) = @_;
		1909
		1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1911	"$UNIQUEDIR/$path"
		1912	}
		1913
		1914	sub decay_objects {
		1915	my ($self) = @_;
		1916
		1917	return if $self->{deny_reset};
		1918
		1919	$self->do_decay_objects;
		1920	}
		1921
		1922	sub unlink_save {
		1923	my ($self) = @_;
		1924
		1925	utf8::encode (my $save = $self->save_path);
		1926	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1927	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1928	}
		1929
		1930	sub load_header_from($) {
		1931	my ($self, $path) = @_;
		1932
		1933	utf8::encode $path;
		1934	my $f = new_from_file cf::object::thawer $path
		1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
		1942
		1943	$self->{load_path} = $path;
		1944
		1945	1
		1946	}
		1947
		1948	sub load_header_orig {
		1949	my ($self) = @_;
		1950
		1951	$self->load_header_from ($self->load_path)
		1952	}
		1953
		1954	sub load_header_temp {
		1955	my ($self) = @_;
		1956
		1957	$self->load_header_from ($self->save_path)
		1958	}
		1959
		1960	sub prepare_temp {
		1961	my ($self) = @_;
		1962
		1963	$self->last_access ((delete $self->{last_access})
		1964	|| $cf::RUNTIME); #d#
		1965	# safety
		1966	$self->{instantiate_time} = $cf::RUNTIME
		1967	if $self->{instantiate_time} > $cf::RUNTIME;
		1968	}
		1969
		1970	sub prepare_orig {
		1971	my ($self) = @_;
		1972
		1973	$self->{load_original} = 1;
		1974	$self->{instantiate_time} = $cf::RUNTIME;
		1975	$self->last_access ($cf::RUNTIME);
		1976	$self->instantiate;
		1977	}
		1978
		1979	sub load_header {
		1980	my ($self) = @_;
		1981
		1982	if ($self->load_header_temp) {
		1983	$self->prepare_temp;
785	} else {	1984	} else {
786	delete $COMMAND{$name};	1985	$self->load_header_orig
787	}	1986	or return;
		1987	$self->prepare_orig;
		1988	}
		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
		1993	$self->default_region (cf::region::find_by_path $self->{path})
		1994	unless $self->default_region;
		1995
788	}	1996	1
		1997	}
789		1998
790	# remove extcmds	1999	sub find;
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	2000	sub find {
792	delete $EXTCMD{$name};	2001	my ($path, $origin) = @_;
		2002
		2003	$path = normalise $path, $origin && $origin->path;
		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2006	my $guard2 = cf::lock_acquire "map_find:$path";
		2007
		2008	$cf::MAP{$path} || do {
		2009	my $map = new_from_path cf::map $path
		2010	or return;
		2011
		2012	$map->{last_save} = $cf::RUNTIME;
		2013
		2014	$map->load_header
		2015	or return;
		2016
		2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2018	# doing this can freeze the server in a sync job, obviously
		2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
		2022	$map->reset;
		2023	return find $path;
		2024	}
		2025
		2026	$cf::MAP{$path} = $map
		2027	}
		2028	}
		2029
		2030	sub pre_load { }
		2031	#sub post_load { } # XS
		2032
		2033	sub load {
		2034	my ($self) = @_;
		2035
		2036	local $self->{deny_reset} = 1; # loading can take a long time
		2037
		2038	my $path = $self->{path};
		2039
793	}	2040	{
		2041	my $guard = cf::lock_acquire "map_data:$path";
794		2042
795	if (my $cb = $pkg->can ("unload")) {	2043	return unless $self->valid;
796	eval {	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
797	$cb->($pkg);	2045
		2046	$self->in_memory (cf::MAP_LOADING);
		2047
		2048	$self->alloc;
		2049
		2050	$self->pre_load;
		2051	cf::cede_to_tick;
		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
		2055	$self->_load_objects ($f)
		2056	or return;
		2057
		2058	$self->post_load_original
		2059	if delete $self->{load_original};
		2060
		2061	if (my $uniq = $self->uniq_path) {
		2062	utf8::encode $uniq;
		2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
		2065	$self->clear_unique_items;
		2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
798	1	2069	}
799	} or warn "$pkg unloaded, but with errors: $@";	2070	}
800	}
801		2071
802	Symbol::delete_package $pkg;	2072	$f->resolve_delayed_derefs;
803	}
804		2073
805	sub load_extensions {	2074	cf::cede_to_tick;
806	for my $ext (<$LIBDIR/*.ext>) {	2075	# now do the right thing for maps
807	next unless -r $ext;	2076	$self->link_multipart_objects;
808	eval {	2077	$self->difficulty ($self->estimate_difficulty)
809	load_extension $ext;	2078	unless $self->difficulty;
810	1	2079	cf::cede_to_tick;
811	} or warn "$ext not loaded: $@";
812	}
813	}
814		2080
815	#############################################################################	2081	unless ($self->{deny_activate}) {
816	# load/save/clean perl data associated with a map	2082	$self->decay_objects;
		2083	$self->fix_auto_apply;
		2084	$self->update_buttons;
		2085	cf::cede_to_tick;
		2086	$self->activate;
		2087	}
817		2088
818	*cf::mapsupport::on_clean = sub {	2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
		2092	$self->in_memory (cf::MAP_ACTIVE);
		2093	}
		2094
		2095	$self->post_load;
		2096	}
		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
		2101	sub customise_for {
		2102	my ($self, $ob) = @_;
		2103
		2104	return find "~" . $ob->name . "/" . $self->{path}
		2105	if $self->per_player;
		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
		2110	$self
		2111	}
		2112
		2113	# find and load all maps in the 3x3 area around a map
		2114	sub load_neighbours {
819	my ($map) = @_;	2115	my ($map) = @_;
820		2116
821	my $path = $map->tmpname;	2117	my @neigh; # diagonal neighbours
822	defined $path or return;
823		2118
824	unlink "$path.pst";	2119	for (0 .. 3) {
825	};	2120	my $neigh = $map->tile_path ($_)
		2121	or next;
		2122	$neigh = find $neigh, $map
		2123	or next;
		2124	$neigh->load;
826		2125
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2126	push @neigh,
		2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2129	}
828		2130
829	#############################################################################	2131	for (grep defined $_->[0], @neigh) {
830	# load/save perl data associated with player->ob objects	2132	my ($path, $origin) = @$_;
831		2133	my $neigh = find $path, $origin
832	sub all_objects(@) {	2134	or next;
833	@_, map all_objects ($_->inv), @_	2135	$neigh->load;
		2136	}
834	}	2137	}
835		2138
836	# TODO: compatibility cruft, remove when no longer needed	2139	sub find_sync {
837	cf::player->attach (	2140	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		2141
841	for my $o (all_objects $pl->ob) {	2142	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2143	}
843	$o->set_ob_key_value ("_perl_data");
844		2144
845	%$o = %{ Storable::thaw pack "H*", $value };	2145	sub do_load_sync {
		2146	my ($map) = @_;
		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
		2151	cf::sync_job { $map->load };
		2152	}
		2153
		2154	our %MAP_PREFETCH;
		2155	our $MAP_PREFETCHER = undef;
		2156
		2157	sub find_async {
		2158	my ($path, $origin, $load) = @_;
		2159
		2160	$path = normalise $path, $origin && $origin->{path};
		2161
		2162	if (my $map = $cf::MAP{$path}) {
		2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2164	}
		2165
		2166	$MAP_PREFETCH{$path} |= $load;
		2167
		2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
		2171	while (%MAP_PREFETCH) {
		2172	while (my ($k, $v) = each %MAP_PREFETCH) {
		2173	if (my $map = find $k) {
		2174	$map->load if $v;
		2175	}
		2176
		2177	delete $MAP_PREFETCH{$k};
846	}	2178	}
847	}	2179	}
		2180	undef $MAP_PREFETCHER;
		2181	};
		2182	$MAP_PREFETCHER->prio (6);
		2183
		2184	()
		2185	}
		2186
		2187	sub save {
		2188	my ($self) = @_;
		2189
		2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2191
		2192	$self->{last_save} = $cf::RUNTIME;
		2193
		2194	return unless $self->dirty;
		2195
		2196	my $save = $self->save_path; utf8::encode $save;
		2197	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2198
		2199	$self->{load_path} = $save;
		2200
		2201	return if $self->{deny_save};
		2202
		2203	local $self->{last_access} = $self->last_access;#d#
		2204
		2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
		2207	$_->contr->save for $self->players;
		2208	};
		2209
		2210	cf::get_slot 0.02;
		2211
		2212	if ($uniq) {
		2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2215	} else {
		2216	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	2217	}
849	);	2218	}
850		2219
851	#############################################################################	2220	sub swap_out {
		2221	my ($self) = @_;
852		2222
853	=head2 CORE EXTENSIONS	2223	# save first because save cedes
		2224	$self->save;
854		2225
855	Functions and methods that extend core crossfire objects.	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
856		2227
857	=head3 cf::player	2228	return if $self->players;
		2229	return if $self->in_memory != cf::MAP_ACTIVE;
		2230	return if $self->{deny_save};
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
		2236	$self->clear;
		2237	}
		2238
		2239	sub reset_at {
		2240	my ($self) = @_;
		2241
		2242	# TODO: safety, remove and allow resettable per-player maps
		2243	return 1e99 if $self->{deny_reset};
		2244
		2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2247
		2248	$time + $to
		2249	}
		2250
		2251	sub should_reset {
		2252	my ($self) = @_;
		2253
		2254	$self->reset_at <= $cf::RUNTIME
		2255	}
		2256
		2257	sub reset {
		2258	my ($self) = @_;
		2259
		2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2261
		2262	return if $self->players;
		2263
		2264	warn "resetting map ", $self->path, "\n";
		2265
		2266	$self->in_memory (cf::MAP_SWAPPED);
		2267
		2268	# need to save uniques path
		2269	unless ($self->{deny_save}) {
		2270	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2271
		2272	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2273	if $uniq;
		2274	}
		2275
		2276	delete $cf::MAP{$self->path};
		2277
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
		2280	$self->clear;
		2281
		2282	$self->unlink_save;
		2283	$self->destroy;
		2284	}
		2285
		2286	my $nuke_counter = "aaaa";
		2287
		2288	sub nuke {
		2289	my ($self) = @_;
		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
		2294	delete $cf::MAP{$self->path};
		2295
		2296	$self->unlink_save;
		2297
		2298	bless $self, "cf::map";
		2299	delete $self->{deny_reset};
		2300	$self->{deny_save} = 1;
		2301	$self->reset_timeout (1);
		2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2303
		2304	$cf::MAP{$self->path} = $self;
		2305	}
		2306
		2307	$self->reset; # polite request, might not happen
		2308	}
		2309
		2310	=item $maps = cf::map::tmp_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	maps. May block.
		2314
		2315	=cut
		2316
		2317	sub tmp_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise $_
		2323	: ()
		2324	} @{ aio_readdir $TMPDIR or [] }
		2325	]
		2326	}
		2327
		2328	=item $maps = cf::map::random_maps
		2329
		2330	Returns an arrayref with all map paths of currently instantiated and saved
		2331	random maps. May block.
		2332
		2333	=cut
		2334
		2335	sub random_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise "?random/$_"
		2341	: ()
		2342	} @{ aio_readdir $RANDOMDIR or [] }
		2343	]
		2344	}
		2345
		2346	=item cf::map::unique_maps
		2347
		2348	Returns an arrayref of paths of all shared maps that have
		2349	instantiated unique items. May block.
		2350
		2351	=cut
		2352
		2353	sub unique_maps() {
		2354	[
		2355	map {
		2356	utf8::decode $_;
		2357	s/\.map$//; # TODO future compatibility hack
		2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2359	? ()
		2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
		2362	]
		2363	}
		2364
		2365	=item cf::map::static_maps
		2366
		2367	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2368	file in the shared directory excluding F</styles> and F</editor>). May
		2369	block.
		2370
		2371	=cut
		2372
		2373	sub static_maps() {
		2374	my @dirs = "";
		2375	my @maps;
		2376
		2377	while (@dirs) {
		2378	my $dir = shift @dirs;
		2379
		2380	next if $dir eq "/styles" || $dir eq "/editor";
		2381
		2382	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2383	or return;
		2384
		2385	for (@$files) {
		2386	s/\.map$// or next;
		2387	utf8::decode $_;
		2388	push @maps, "$dir/$_";
		2389	}
		2390
		2391	push @dirs, map "$dir/$_", @$dirs;
		2392	}
		2393
		2394	\@maps
		2395	}
		2396
		2397	=back
		2398
		2399	=head3 cf::object
		2400
		2401	=cut
		2402
		2403	package cf::object;
858		2404
859	=over 4	2405	=over 4
860		2406
861	=item cf::player::exists $login	2407	=item $ob->inv_recursive
862		2408
863	Returns true when the given account exists.	2409	Returns the inventory of the object I<and> their inventories, recursively,
		2410	but I<not> the object itself.
864		2411
865	=cut	2412	=cut
866		2413
867	sub cf::player::exists($) {	2414	sub inv_recursive_;
868	cf::player::find $_[0]	2415	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2416	map { $_, inv_recursive_ $_->inv } @_
870	}	2417	}
871		2418
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	2419	sub inv_recursive {
873		2420	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	2421	}
		2422
		2423	=item $ref = $ob->ref
		2424
		2425	Creates and returns a persistent reference to an object that can be stored as a string.
		2426
		2427	=item $ob = cf::object::deref ($refstring)
		2428
		2429	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2430	even if the object actually exists. May block.
		2431
		2432	=cut
		2433
		2434	sub deref {
		2435	my ($ref) = @_;
		2436
		2437	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2438	my ($uuid, $name) = ($1, $2);
		2439	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2440	or return;
		2441	$pl->ob->uuid eq $uuid
		2442	or return;
		2443
		2444	$pl->ob
		2445	} else {
		2446	warn "$ref: cannot resolve object reference\n";
		2447	undef
		2448	}
		2449	}
		2450
		2451	package cf;
885		2452
886	=back	2453	=back
887		2454
888	=head3 cf::object::player	2455	=head3 cf::object::player
889		2456
…		…
894	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2461	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
895	can be C<undef>. Does the right thing when the player is currently in a	2462	can be C<undef>. Does the right thing when the player is currently in a
896	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
897		2464
898	=cut	2465	=cut
		2466
		2467	our $SAY_CHANNEL = {
		2468	id => "say",
		2469	title => "Map",
		2470	reply => "say ",
		2471	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2472	};
		2473
		2474	our $CHAT_CHANNEL = {
		2475	id => "chat",
		2476	title => "Chat",
		2477	reply => "chat ",
		2478	tooltip => "Player chat and shouts, global to the server.",
		2479	};
899		2480
900	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
901	# with dialog boxes.	2482	# with dialog boxes.
902	#TODO: the first argument must go, split into a $npc->reply_to ( method	2483	#TODO: the first argument must go, split into a $npc->reply_to ( method
903	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
905		2486
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2488
908	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
910	} else {	2492	} else {
		2493	my $pl = $self->contr;
		2494
		2495	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2496	my $dialog = $pl->{npc_dialog};
		2497	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2498
		2499	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
913	}	2503	}
		2504	}
		2505
		2506	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	=cut
		2509
		2510	sub cf::object::send_msg {
		2511	my $pl = shift->contr
		2512	or return;
		2513	$pl->send_msg (@_);
914	}	2514	}
915		2515
916	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
917		2517
918	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2527	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2528	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2529	: $cf::CFG{"may_$access"})
930	}	2530	}
931		2531
		2532	=item $player_object->enter_link
		2533
		2534	Freezes the player and moves him/her to a special map (C<{link}>).
		2535
		2536	The player should be reasonably safe there for short amounts of time (e.g.
		2537	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2538	though, as the palyer cannot control the character while it is on the link
		2539	map.
		2540
		2541	Will never block.
		2542
		2543	=item $player_object->leave_link ($map, $x, $y)
		2544
		2545	Moves the player out of the special C<{link}> map onto the specified
		2546	map. If the map is not valid (or omitted), the player will be moved back
		2547	to the location he/she was before the call to C<enter_link>, or, if that
		2548	fails, to the emergency map position.
		2549
		2550	Might block.
		2551
		2552	=cut
		2553
		2554	sub link_map {
		2555	unless ($LINK_MAP) {
		2556	$LINK_MAP = cf::map::find "{link}"
		2557	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2558	$LINK_MAP->load;
		2559	}
		2560
		2561	$LINK_MAP
		2562	}
		2563
		2564	sub cf::object::player::enter_link {
		2565	my ($self) = @_;
		2566
		2567	$self->deactivate_recursive;
		2568
		2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2570
		2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2572	if $self->map && $self->map->{path} ne "{link}";
		2573
		2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2575	}
		2576
		2577	sub cf::object::player::leave_link {
		2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
		2581
		2582	my $link_pos = delete $self->{_link_pos};
		2583
		2584	unless ($map) {
		2585	# restore original map position
		2586	($map, $x, $y) = @{ $link_pos || [] };
		2587	$map = cf::map::find $map;
		2588
		2589	unless ($map) {
		2590	($map, $x, $y) = @$EMERGENCY_POSITION;
		2591	$map = cf::map::find $map
		2592	or die "FATAL: cannot load emergency map\n";
		2593	}
		2594	}
		2595
		2596	($x, $y) = (-1, -1)
		2597	unless (defined $x) && (defined $y);
		2598
		2599	# use -1 or undef as default coordinates, not 0, 0
		2600	($x, $y) = ($map->enter_x, $map->enter_y)
		2601	if $x <= 0 && $y <= 0;
		2602
		2603	$map->load;
		2604	$map->load_neighbours;
		2605
		2606	return unless $self->contr->active;
		2607
		2608	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2609	$self->enter_map ($map, $x, $y);
		2610
		2611	# only activate afterwards, to support waiting in hooks
		2612	$self->activate_recursive;
		2613	}
		2614
		2615	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2616
		2617	Moves the player to the given map-path and coordinates by first freezing
		2618	her, loading and preparing them map, calling the provided $check callback
		2619	that has to return the map if sucecssful, and then unfreezes the player on
		2620	the new (success) or old (failed) map position. In either case, $done will
		2621	be called at the end of this process.
		2622
		2623	Note that $check will be called with a potentially non-loaded map, so if
		2624	it needs a loaded map it has to call C<< ->load >>.
		2625
		2626	=cut
		2627
		2628	our $GOTOGEN;
		2629
		2630	sub cf::object::player::goto {
		2631	my ($self, $path, $x, $y, $check, $done) = @_;
		2632
		2633	# do generation counting so two concurrent goto's will be executed in-order
		2634	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2635
		2636	$self->enter_link;
		2637
		2638	(async {
		2639	$Coro::current->{desc} = "player::goto $path $x $y";
		2640
		2641	# *tag paths override both path and x|y
		2642	if ($path =~ /^\*(.*)$/) {
		2643	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2644	my $ob = $obs[rand @obs];
		2645
		2646	# see if we actually can go there
		2647	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2648	$ob = $obs[rand @obs];
		2649	} else {
		2650	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	}
		2652	# else put us there anyways for now #d#
		2653
		2654	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2655	} else {
		2656	($path, $x, $y) = (undef, undef, undef);
		2657	}
		2658	}
		2659
		2660	my $map = eval {
		2661	my $map = defined $path ? cf::map::find $path : undef;
		2662
		2663	if ($map) {
		2664	$map = $map->customise_for ($self);
		2665	$map = $check->($map) if $check && $map;
		2666	} else {
		2667	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2668	}
		2669
		2670	$map
		2671	};
		2672
		2673	if ($@) {
		2674	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2675	LOG llevError | logBacktrace, Carp::longmess $@;
		2676	}
		2677
		2678	if ($gen == $self->{_goto_generation}) {
		2679	delete $self->{_goto_generation};
		2680	$self->leave_link ($map, $x, $y);
		2681	}
		2682
		2683	$done->() if $done;
		2684	})->prio (1);
		2685	}
		2686
		2687	=item $player_object->enter_exit ($exit_object)
		2688
		2689	=cut
		2690
		2691	sub parse_random_map_params {
		2692	my ($spec) = @_;
		2693
		2694	my $rmp = { # defaults
		2695	xsize => (cf::rndm 15, 40),
		2696	ysize => (cf::rndm 15, 40),
		2697	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2698	#layout => string,
		2699	};
		2700
		2701	for (split /\n/, $spec) {
		2702	my ($k, $v) = split /\s+/, $_, 2;
		2703
		2704	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2705	}
		2706
		2707	$rmp
		2708	}
		2709
		2710	sub prepare_random_map {
		2711	my ($exit) = @_;
		2712
		2713	# all this does is basically replace the /! path by
		2714	# a new random map path (?random/...) with a seed
		2715	# that depends on the exit object
		2716
		2717	my $rmp = parse_random_map_params $exit->msg;
		2718
		2719	if ($exit->map) {
		2720	$rmp->{region} = $exit->region->name;
		2721	$rmp->{origin_map} = $exit->map->path;
		2722	$rmp->{origin_x} = $exit->x;
		2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
		2726	}
		2727
		2728	$rmp->{random_seed} ||= $exit->random_seed;
		2729
		2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2731	my $md5 = Digest::MD5::md5_hex $data;
		2732	my $meta = "$RANDOMDIR/$md5.meta";
		2733
		2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2735	aio_write $fh, 0, (length $data), $data, 0;
		2736	undef $fh;
		2737	aio_rename "$meta~", $meta;
		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
		2742	$exit->slaying ("?random/$md5");
		2743	$exit->msg (undef);
		2744	}
		2745	}
		2746	}
		2747
		2748	sub cf::object::player::enter_exit {
		2749	my ($self, $exit) = @_;
		2750
		2751	return unless $self->type == cf::PLAYER;
		2752
		2753	$self->enter_link;
		2754
		2755	(async {
		2756	$Coro::current->{desc} = "enter_exit";
		2757
		2758	unless (eval {
		2759	$self->deactivate_recursive; # just to be sure
		2760
		2761	# random map handling
		2762	{
		2763	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2764
		2765	prepare_random_map $exit
		2766	if $exit->slaying eq "/!";
		2767	}
		2768
		2769	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2770	my $x = $exit->stats->hp;
		2771	my $y = $exit->stats->sp;
		2772
		2773	$self->goto ($map, $x, $y);
		2774
		2775	# if exit is damned, update players death & WoR home-position
		2776	$self->contr->savebed ($map, $x, $y)
		2777	if $exit->flag (cf::FLAG_DAMNED);
		2778
		2779	1
		2780	}) {
		2781	$self->message ("Something went wrong deep within the deliantra server. "
		2782	. "I'll try to bring you back to the map you were before. "
		2783	. "Please report this to the dungeon master!",
		2784	cf::NDI_UNIQUE | cf::NDI_RED);
		2785
		2786	warn "ERROR in enter_exit: $@";
		2787	$self->leave_link;
		2788	}
		2789	})->prio (1);
		2790	}
		2791
932	=head3 cf::client	2792	=head3 cf::client
933		2793
934	=over 4	2794	=over 4
935		2795
936	=item $client->send_drawinfo ($text, $flags)	2796	=item $client->send_drawinfo ($text, $flags)
…		…
942		2802
943	sub cf::client::send_drawinfo {	2803	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2804	my ($self, $text, $flags) = @_;
945		2805
946	utf8::encode $text;	2806	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2807	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2808	}
949		2809
		2810	=item $client->send_big_packet ($pkt)
		2811
		2812	Like C<send_packet>, but tries to compress large packets, and fragments
		2813	them as required.
		2814
		2815	=cut
		2816
		2817	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2818
		2819	sub cf::client::send_big_packet {
		2820	my ($self, $pkt) = @_;
		2821
		2822	# try lzf for large packets
		2823	$pkt = "lzf " . Compress::LZF::compress $pkt
		2824	if 1024 <= length $pkt and $self->{can_lzf};
		2825
		2826	# split very large packets
		2827	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2828	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2829	$pkt = "frag";
		2830	}
		2831
		2832	$self->send_packet ($pkt);
		2833	}
		2834
		2835	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2836
		2837	Send a drawinfo or msg packet to the client, formatting the msg for the
		2838	client if neccessary. C<$type> should be a string identifying the type of
		2839	the message, with C<log> being the default. If C<$color> is negative, suppress
		2840	the message unless the client supports the msg packet.
		2841
		2842	=cut
		2843
		2844	# non-persistent channels (usually the info channel)
		2845	our %CHANNEL = (
		2846	"c/motd" => {
		2847	id => "infobox",
		2848	title => "MOTD",
		2849	reply => undef,
		2850	tooltip => "The message of the day",
		2851	},
		2852	"c/identify" => {
		2853	id => "infobox",
		2854	title => "Identify",
		2855	reply => undef,
		2856	tooltip => "Items recently identified",
		2857	},
		2858	"c/examine" => {
		2859	id => "infobox",
		2860	title => "Examine",
		2861	reply => undef,
		2862	tooltip => "Signs and other items you examined",
		2863	},
		2864	"c/shopinfo" => {
		2865	id => "infobox",
		2866	title => "Shop Info",
		2867	reply => undef,
		2868	tooltip => "What your bargaining skill tells you about the shop",
		2869	},
		2870	"c/book" => {
		2871	id => "infobox",
		2872	title => "Book",
		2873	reply => undef,
		2874	tooltip => "The contents of a note or book",
		2875	},
		2876	"c/lookat" => {
		2877	id => "infobox",
		2878	title => "Look",
		2879	reply => undef,
		2880	tooltip => "What you saw there",
		2881	},
		2882	"c/who" => {
		2883	id => "infobox",
		2884	title => "Players",
		2885	reply => undef,
		2886	tooltip => "Shows players who are currently online",
		2887	},
		2888	"c/body" => {
		2889	id => "infobox",
		2890	title => "Body Parts",
		2891	reply => undef,
		2892	tooltip => "Shows which body parts you posess and are available",
		2893	},
		2894	"c/statistics" => {
		2895	id => "infobox",
		2896	title => "Statistics",
		2897	reply => undef,
		2898	tooltip => "Shows your primary statistics",
		2899	},
		2900	"c/skills" => {
		2901	id => "infobox",
		2902	title => "Skills",
		2903	reply => undef,
		2904	tooltip => "Shows your experience per skill and item power",
		2905	},
		2906	"c/shopitems" => {
		2907	id => "infobox",
		2908	title => "Shop Items",
		2909	reply => undef,
		2910	tooltip => "Shows the items currently for sale in this shop",
		2911	},
		2912	"c/resistances" => {
		2913	id => "infobox",
		2914	title => "Resistances",
		2915	reply => undef,
		2916	tooltip => "Shows your resistances",
		2917	},
		2918	"c/pets" => {
		2919	id => "infobox",
		2920	title => "Pets",
		2921	reply => undef,
		2922	tooltip => "Shows information abotu your pets/a specific pet",
		2923	},
		2924	"c/perceiveself" => {
		2925	id => "infobox",
		2926	title => "Perceive Self",
		2927	reply => undef,
		2928	tooltip => "You gained detailed knowledge about yourself",
		2929	},
		2930	"c/uptime" => {
		2931	id => "infobox",
		2932	title => "Uptime",
		2933	reply => undef,
		2934	tooltip => "How long the server has been running since last restart",
		2935	},
		2936	"c/mapinfo" => {
		2937	id => "infobox",
		2938	title => "Map Info",
		2939	reply => undef,
		2940	tooltip => "Information related to the maps",
		2941	},
		2942	"c/party" => {
		2943	id => "party",
		2944	title => "Party",
		2945	reply => "gsay ",
		2946	tooltip => "Messages and chat related to your party",
		2947	},
		2948	"c/death" => {
		2949	id => "death",
		2950	title => "Death",
		2951	reply => undef,
		2952	tooltip => "Reason for and more info about your most recent death",
		2953	},
		2954	"c/say" => $SAY_CHANNEL,
		2955	"c/chat" => $CHAT_CHANNEL,
		2956	);
		2957
		2958	sub cf::client::send_msg {
		2959	my ($self, $channel, $msg, $color, @extra) = @_;
		2960
		2961	$msg = $self->pl->expand_cfpod ($msg)
		2962	unless $color & cf::NDI_VERBATIM;
		2963
		2964	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2965
		2966	# check predefined channels, for the benefit of C
		2967	if ($CHANNEL{$channel}) {
		2968	$channel = $CHANNEL{$channel};
		2969
		2970	$self->ext_msg (channel_info => $channel);
		2971	$channel = $channel->{id};
		2972
		2973	} elsif (ref $channel) {
		2974	# send meta info to client, if not yet sent
		2975	unless (exists $self->{channel}{$channel->{id}}) {
		2976	$self->{channel}{$channel->{id}} = $channel;
		2977	$self->ext_msg (channel_info => $channel);
		2978	}
		2979
		2980	$channel = $channel->{id};
		2981	}
		2982
		2983	return unless @extra || length $msg;
		2984
		2985	# default colour, mask it out
		2986	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2987	if $color & cf::NDI_DEF;
		2988
		2989	my $pkt = "msg "
		2990	. $self->{json_coder}->encode (
		2991	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2992	);
		2993
		2994	$self->send_big_packet ($pkt);
		2995	}
		2996
		2997	=item $client->ext_msg ($type, @msg)
		2998
		2999	Sends an ext event to the client.
		3000
		3001	=cut
		3002
		3003	sub cf::client::ext_msg($$@) {
		3004	my ($self, $type, @msg) = @_;
		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
		3009	push @msg, msgtype => "event_$type";
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
		3013
		3014	=item $client->ext_reply ($msgid, @msg)
		3015
		3016	Sends an ext reply to the client.
		3017
		3018	=cut
		3019
		3020	sub cf::client::ext_reply($$@) {
		3021	my ($self, $id, @msg) = @_;
		3022
		3023	if ($self->extcmd == 2) {
		3024	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3025	} elsif ($self->extcmd == 1) {
		3026	#TODO: version 1, remove
		3027	unshift @msg, msgtype => "reply", msgid => $id;
		3028	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3029	}
		3030	}
950		3031
951	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
952		3033
953	Queues a query to the client, calling the given callback with	3034	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3035	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3036	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		3037
957	Queries can fail, so check the return code. Or don't, as queries will become	3038	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	3039	become reliable at some point in the future.
959		3040
960	=cut	3041	=cut
961		3042
962	sub cf::client::query {	3043	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	3052	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		3054
974	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
976	}	3059	}
977		3060
978	cf::client->attach (	3061	cf::client->attach (
		3062	on_connect => sub {
		3063	my ($ns) = @_;
		3064
		3065	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3066	},
979	on_reply => sub {	3067	on_reply => sub {
980	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
981		3069
982	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
983	# get handled first	3071	# get handled first
984	my $queue = delete $ns->{query_queue};	3072	my $queue = delete $ns->{query_queue}
		3073	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		3074
986	(shift @$queue)->[1]->($msg);	3075	(shift @$queue)->[1]->($msg);
		3076	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		3077
988	push @{ $ns->{query_queue} }, @$queue;	3078	push @{ $ns->{query_queue} }, @$queue;
989		3079
990	if (@{ $ns->{query_queue} } == @$queue) {	3080	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	3081	if (@$queue) {
…		…
993	} else {	3083	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	3085	}
996	}	3086	}
997	},	3087	},
		3088	on_exticmd => sub {
		3089	my ($ns, $buf) = @_;
		3090
		3091	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3092
		3093	if (ref $msg) {
		3094	my ($type, $reply, @payload) =
		3095	"ARRAY" eq ref $msg
		3096	? @$msg
		3097	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3098
		3099	my @reply;
		3100
		3101	if (my $cb = $EXTICMD{$type}) {
		3102	@reply = $cb->($ns, @payload);
		3103	}
		3104
		3105	$ns->ext_reply ($reply, @reply)
		3106	if $reply;
		3107
		3108	} else {
		3109	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3110	}
		3111
		3112	cf::override;
		3113	},
998	);	3114	);
999		3115
1000	=item $client->coro (\&cb)	3116	=item $client->async (\&cb)
1001		3117
1002	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	3119	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	3120	or loss of connection).
1005		3121
1006	=cut	3122	=cut
1007		3123
1008	sub cf::client::coro {	3124	sub cf::client::async {
1009	my ($self, $cb) = @_;	3125	my ($self, $cb) = @_;
1010		3126
1011	my $coro; $coro = async {	3127	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		3128
1018	$coro->on_destroy (sub {	3129	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	3130	delete $self->{_coro}{$coro+0};
1020	});	3131	});
1021		3132
…		…
1048	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
1050		3161
1051	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
1052		3163
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3164	$safe->permit_only (Opcode::opset qw(
		3165	:base_core :base_mem :base_orig :base_math :base_loop
		3166	grepstart grepwhile mapstart mapwhile
		3167	sort time
		3168	));
1054		3169
1055	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
1056		3171
1057	=pod	3172	=pod
1058		3173
1059	The following fucntions and emthods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
1060		3175
1061	cf::object contr pay_amount pay_player map	3176	cf::object
		3177	contr pay_amount pay_player map x y force_find force_add destroy
		3178	insert remove name archname title slaying race decrease split
		3179	value
		3180
1062	cf::object::player player	3181	cf::object::player
1063	cf::player peaceful	3182	player
1064	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
1065		3189
1066	=cut	3190	=cut
1067		3191
1068	for (	3192	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	3193	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3194	insert remove inv nrof name archname title slaying race
		3195	decrease split destroy change_exp value msg lore send_msg)],
1070	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
1072	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
1073	) {	3199	) {
1074	no strict 'refs';	3200	no strict 'refs';
1075	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
1076	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1094		3220
1095	my $qcode = $code;	3221	my $qcode = $code;
1096	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1097	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
1098		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
1099	local $_;	3228	local $_;
1100	local @safe::cf::_safe_eval_args = values %vars;
1101		3229
1102	my $eval =	3230	my $eval =
1103	"do {\n"	3231	"do {\n"
1104	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1105	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
1106	. $code	3234	. $code
1107	. "\n}"	3235	. "\n}"
1108	;	3236	;
1109		3237
		3238	if ($CFG{safe_eval}) {
1110	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
1111	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1112	sub_generation_inc;	3242	sub_generation_inc;
		3243	} else {
		3244	local @cf::_safe_eval_args = values %vars;
		3245	@res = wantarray ? eval eval : scalar eval $eval;
		3246	}
1113		3247
1114	if ($@) {	3248	if ($@) {
1115	warn "$@";	3249	warn "$@";
1116	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
1117	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1136	=cut	3270	=cut
1137		3271
1138	sub register_script_function {	3272	sub register_script_function {
1139	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
1140		3274
1141	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
1142	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
1143	}	3277	}
1144		3278
1145	=back	3279	=back
1146		3280
1147	=cut	3281	=cut
1148		3282
1149	#############################################################################	3283	#############################################################################
		3284	# the server's init and main functions
1150		3285
1151	=head2 EXTENSION DATABASE SUPPORT	3286	sub load_facedata($) {
		3287	my ($path) = @_;
1152		3288
1153	Crossfire maintains a very simple database for extension use. It can	3289	# HACK to clear player env face cache, we need some signal framework
1154	currently store anything that can be serialised using Storable, which	3290	# for this (global event?)
1155	excludes objects.	3291	%ext::player_env::MUSIC_FACE_CACHE = ();
1156		3292
1157	The parameter C<$family> should best start with the name of the extension	3293	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1158	using it, it should be unique.
1159		3294
1160	=over 4	3295	warn "loading facedata from $path\n";
1161		3296
1162	=item $hashref = cf::db_get $family	3297	my $facedata;
		3298	0 < aio_load $path, $facedata
		3299	or die "$path: $!";
1163		3300
1164	Return a hashref for use by the extension C<$family>, which can be	3301	$facedata = Coro::Storable::thaw $facedata;
1165	modified. After modifications, you have to call C<cf::db_dirty> or
1166	C<cf::db_sync>.
1167		3302
1168	=item $value = cf::db_get $family => $key	3303	$facedata->{version} == 2
		3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
1169		3305
1170	Returns a single value from the database	3306	# patch in the exptable
		3307	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3308	$facedata->{resource}{"res/exp_table"} = {
		3309	type => FT_RSRC,
		3310	data => $exp_table,
		3311	hash => (Digest::MD5::md5 $exp_table),
		3312	};
		3313	cf::cede_to_tick;
1171		3314
1172	=item cf::db_put $family => $hashref	3315	{
		3316	my $faces = $facedata->{faceinfo};
1173		3317
1174	Stores the given family hashref into the database. Updates are delayed, if	3318	while (my ($face, $info) = each %$faces) {
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1176		3320
1177	=item cf::db_put $family => $key => $value	3321	cf::face::set_visibility $idx, $info->{visibility};
		3322	cf::face::set_magicmap $idx, $info->{magicmap};
		3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1178		3325
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	3326	cf::cede_to_tick;
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.	3327	}
1181		3328
1182	=item cf::db_dirty	3329	while (my ($face, $info) = each %$faces) {
		3330	next unless $info->{smooth};
1183		3331
1184	Marks the database as dirty, to be updated at a later time.	3332	my $idx = cf::face::find $face
		3333	or next;
1185		3334
1186	=item cf::db_sync	3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
		3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3338	} else {
		3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3340	}
1187		3341
1188	Immediately write the database to disk I<if it is dirty>.	3342	cf::cede_to_tick;
		3343	}
		3344	}
1189		3345
1190	=cut	3346	{
		3347	my $anims = $facedata->{animinfo};
1191		3348
1192	our $DB;	3349	while (my ($anim, $info) = each %$anims) {
		3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3351	cf::cede_to_tick;
		3352	}
		3353
		3354	cf::anim::invalidate_all; # d'oh
		3355	}
		3356
		3357	{
		3358	my $res = $facedata->{resource};
		3359
		3360	while (my ($name, $info) = each %$res) {
		3361	if (defined $info->{type}) {
		3362	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3363
		3364	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3365	cf::face::set_type $idx, $info->{type};
		3366	} else {
		3367	$RESOURCE{$name} = $info;
		3368	}
		3369
		3370	cf::cede_to_tick;
		3371	}
		3372	}
		3373
		3374	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3375
		3376	1
		3377	}
		3378
		3379	cf::global->attach (on_resource_update => sub {
		3380	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3381	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3382
		3383	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3384	my $sound = $soundconf->{compat}[$_]
		3385	or next;
		3386
		3387	my $face = cf::face::find "sound/$sound->[1]";
		3388	cf::sound::set $sound->[0] => $face;
		3389	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3390	}
		3391
		3392	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3393	my $face = cf::face::find "sound/$v";
		3394	cf::sound::set $k => $face;
		3395	}
		3396	}
		3397	});
		3398
		3399	register_exticmd fx_want => sub {
		3400	my ($ns, $want) = @_;
		3401
		3402	while (my ($k, $v) = each %$want) {
		3403	$ns->fx_want ($k, $v);
		3404	}
		3405	};
		3406
		3407	sub load_resource_file($) {
		3408	my $guard = lock_acquire "load_resource_file";
		3409
		3410	my $status = load_resource_file_ $_[0];
		3411	get_slot 0.1, 100;
		3412	cf::arch::commit_load;
		3413
		3414	$status
		3415	}
		3416
		3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
		3422	load_resource_file "$MAPDIR/regions"
		3423	or die "unable to load regions file\n";
		3424
		3425	for (cf::region::list) {
		3426	$_->{match} = qr/$_->{match}/
		3427	if exists $_->{match};
		3428	}
		3429	}
		3430
		3431	sub reload_facedata {
		3432	load_facedata "$DATADIR/facedata"
		3433	or die "unable to load facedata\n";
		3434	}
		3435
		3436	sub reload_archetypes {
		3437	load_resource_file "$DATADIR/archetypes"
		3438	or die "unable to load archetypes\n";
		3439	}
		3440
		3441	sub reload_treasures {
		3442	load_resource_file "$DATADIR/treasures"
		3443	or die "unable to load treasurelists\n";
		3444	}
		3445
		3446	sub reload_resources {
		3447	warn "reloading resource files...\n";
		3448
		3449	reload_facedata;
		3450	reload_archetypes;
		3451	reload_regions;
		3452	reload_treasures;
		3453
		3454	warn "finished reloading resource files\n";
		3455	}
		3456
		3457	sub reload_config {
		3458	warn "reloading config file...\n";
		3459
		3460	open my $fh, "<:utf8", "$CONFDIR/config"
		3461	or return;
		3462
		3463	local $/;
		3464	*CFG = YAML::XS::Load scalar <$fh>;
		3465
		3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3467
		3468	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3469	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3470
		3471	if (exists $CFG{mlockall}) {
		3472	eval {
		3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3474	and die "WARNING: m(un)lockall failed: $!\n";
		3475	};
		3476	warn $@ if $@;
		3477	}
		3478
		3479	warn "finished reloading resource files\n";
		3480	}
		3481
		3482	sub pidfile() {
		3483	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3484	or die "$PIDFILE: $!";
		3485	flock $fh, &Fcntl::LOCK_EX
		3486	or die "$PIDFILE: flock: $!";
		3487	$fh
		3488	}
		3489
		3490	# make sure only one server instance is running at any one time
		3491	sub atomic {
		3492	my $fh = pidfile;
		3493
		3494	my $pid = <$fh>;
		3495	kill 9, $pid if $pid > 0;
		3496
		3497	seek $fh, 0, 0;
		3498	print $fh $$;
		3499	}
		3500
		3501	sub main_loop {
		3502	warn "EV::loop starting\n";
		3503	if (1) {
		3504	EV::loop;
		3505	}
		3506	warn "EV::loop returned\n";
		3507	goto &main_loop unless $REALLY_UNLOOP;
		3508	}
		3509
		3510	sub main {
		3511	cf::init_globals; # initialise logging
		3512
		3513	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3514	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3515	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3516	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3517
		3518	cf::init_experience;
		3519	cf::init_anim;
		3520	cf::init_attackmess;
		3521	cf::init_dynamic;
		3522
		3523	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3524
		3525	# we must not ever block the main coroutine
		3526	local $Coro::idle = sub {
		3527	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3528	(async {
		3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
		3531	})->prio (Coro::PRIO_MAX);
		3532	};
		3533
		3534	evthread_start IO::AIO::poll_fileno;
		3535
		3536	cf::sync_job {
		3537	cf::load_settings;
		3538	cf::load_materials;
		3539
		3540	reload_resources;
		3541	reload_config;
		3542	db_init;
		3543
		3544	cf::init_uuid;
		3545	cf::init_signals;
		3546	cf::init_commands;
		3547	cf::init_skills;
		3548
		3549	cf::init_beforeplay;
		3550
		3551	atomic;
		3552
		3553	load_extensions;
		3554
		3555	utime time, time, $RUNTIMEFILE;
		3556
		3557	# no (long-running) fork's whatsoever before this point(!)
		3558	use POSIX ();
		3559	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3560
		3561	(pop @POST_INIT)->(0) while @POST_INIT;
		3562	};
		3563
		3564	main_loop;
		3565	}
		3566
		3567	#############################################################################
		3568	# initialisation and cleanup
		3569
		3570	# install some emergency cleanup handlers
		3571	BEGIN {
		3572	our %SIGWATCHER = ();
		3573	for my $signal (qw(INT HUP TERM)) {
		3574	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3575	cf::cleanup "SIG$signal";
		3576	};
		3577	}
		3578	}
		3579
		3580	sub write_runtime_sync {
		3581	my $t0 = EV::time;
		3582
		3583	# first touch the runtime file to show we are still running:
		3584	# the fsync below can take a very very long time.
		3585
		3586	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3587
		3588	my $guard = cf::lock_acquire "write_runtime";
		3589
		3590	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3591	or return;
		3592
		3593	my $value = $cf::RUNTIME + 90 + 10;
		3594	# 10 is the runtime save interval, for a monotonic clock
		3595	# 60 allows for the watchdog to kill the server.
		3596
		3597	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3598	and return;
		3599
		3600	# always fsync - this file is important
		3601	aio_fsync $fh
		3602	and return;
		3603
		3604	# touch it again to show we are up-to-date
		3605	aio_utime $fh, undef, undef;
		3606
		3607	close $fh
		3608	or return;
		3609
		3610	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3611	and return;
		3612
		3613	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3614
		3615	1
		3616	}
		3617
		3618	our $uuid_lock;
		3619	our $uuid_skip;
		3620
		3621	sub write_uuid_sync($) {
		3622	$uuid_skip ||= $_[0];
		3623
		3624	return if $uuid_lock;
		3625	local $uuid_lock = 1;
		3626
		3627	my $uuid = "$LOCALDIR/uuid";
		3628
		3629	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3630	or return;
		3631
		3632	my $value = uuid_seq uuid_cur;
		3633
		3634	unless ($value) {
		3635	warn "cowardly refusing to write zero uuid value!\n";
		3636	return;
		3637	}
		3638
		3639	my $value = uuid_str $value + $uuid_skip;
		3640	$uuid_skip = 0;
		3641
		3642	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3643	and return;
		3644
		3645	# always fsync - this file is important
		3646	aio_fsync $fh
		3647	and return;
		3648
		3649	close $fh
		3650	or return;
		3651
		3652	aio_rename "$uuid~", $uuid
		3653	and return;
		3654
		3655	warn "uuid file written ($value).\n";
		3656
		3657	1
		3658
		3659	}
		3660
		3661	sub write_uuid($$) {
		3662	my ($skip, $sync) = @_;
		3663
		3664	$sync ? write_uuid_sync $skip
		3665	: async { write_uuid_sync $skip };
		3666	}
		3667
		3668	sub emergency_save() {
		3669	my $freeze_guard = cf::freeze_mainloop;
		3670
		3671	warn "emergency_perl_save: enter\n";
		3672
		3673	cf::sync_job {
		3674	# this is a trade-off: we want to be very quick here, so
		3675	# save all maps without fsync, and later call a global sync
		3676	# (which in turn might be very very slow)
		3677	local $USE_FSYNC = 0;
		3678
		3679	# use a peculiar iteration method to avoid tripping on perl
		3680	# refcount bugs in for. also avoids problems with players
		3681	# and maps saved/destroyed asynchronously.
		3682	warn "emergency_perl_save: begin player save\n";
		3683	for my $login (keys %cf::PLAYER) {
		3684	my $pl = $cf::PLAYER{$login} or next;
		3685	$pl->valid or next;
		3686	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3687	$pl->save;
		3688	}
		3689	warn "emergency_perl_save: end player save\n";
		3690
		3691	warn "emergency_perl_save: begin map save\n";
		3692	for my $path (keys %cf::MAP) {
		3693	my $map = $cf::MAP{$path} or next;
		3694	$map->valid or next;
		3695	$map->save;
		3696	}
		3697	warn "emergency_perl_save: end map save\n";
		3698
		3699	warn "emergency_perl_save: begin database checkpoint\n";
		3700	BDB::db_env_txn_checkpoint $DB_ENV;
		3701	warn "emergency_perl_save: end database checkpoint\n";
		3702
		3703	warn "emergency_perl_save: begin write uuid\n";
		3704	write_uuid_sync 1;
		3705	warn "emergency_perl_save: end write uuid\n";
		3706	};
		3707
		3708	warn "emergency_perl_save: starting sync()\n";
		3709	IO::AIO::aio_sync sub {
		3710	warn "emergency_perl_save: finished sync()\n";
		3711	};
		3712
		3713	warn "emergency_perl_save: leave\n";
		3714	}
		3715
		3716	sub post_cleanup {
		3717	my ($make_core) = @_;
		3718
		3719	warn Carp::longmess "post_cleanup backtrace"
		3720	if $make_core;
		3721
		3722	my $fh = pidfile;
		3723	unlink $PIDFILE if <$fh> == $$;
		3724	}
		3725
		3726	# a safer delete_package, copied from Symbol
		3727	sub clear_package($) {
		3728	my $pkg = shift;
		3729
		3730	# expand to full symbol table name if needed
		3731	unless ($pkg =~ /^main::.*::$/) {
		3732	$pkg = "main$pkg" if $pkg =~ /^::/;
		3733	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3734	$pkg .= '::' unless $pkg =~ /::$/;
		3735	}
		3736
		3737	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3738	my $stem_symtab = *{$stem}{HASH};
		3739
		3740	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3741	or return;
		3742
		3743	# clear all symbols
		3744	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3745	for my $name (keys %$leaf_symtab) {
		3746	_gv_clear *{"$pkg$name"};
		3747	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3748	}
		3749	warn "cleared package $pkg\n";#d#
		3750	}
		3751
		3752	sub do_reload_perl() {
		3753	# can/must only be called in main
		3754	if ($Coro::current != $Coro::main) {
		3755	warn "can only reload from main coroutine";
		3756	return;
		3757	}
		3758
		3759	return if $RELOAD++;
		3760
		3761	my $t1 = EV::time;
		3762
		3763	while ($RELOAD) {
		3764	warn "reloading...";
		3765
		3766	warn "entering sync_job";
		3767
		3768	cf::sync_job {
		3769	cf::write_runtime_sync; # external watchdog should not bark
		3770	cf::emergency_save;
		3771	cf::write_runtime_sync; # external watchdog should not bark
		3772
		3773	warn "syncing database to disk";
		3774	BDB::db_env_txn_checkpoint $DB_ENV;
		3775
		3776	# if anything goes wrong in here, we should simply crash as we already saved
		3777
		3778	warn "flushing outstanding aio requests";
		3779	while (IO::AIO::nreqs || BDB::nreqs) {
		3780	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3781	}
		3782
		3783	warn "cancelling all extension coros";
		3784	$_->cancel for values %EXT_CORO;
		3785	%EXT_CORO = ();
		3786
		3787	warn "removing commands";
		3788	%COMMAND = ();
		3789
		3790	warn "removing ext/exti commands";
		3791	%EXTCMD = ();
		3792	%EXTICMD = ();
		3793
		3794	warn "unloading/nuking all extensions";
		3795	for my $pkg (@EXTS) {
		3796	warn "... unloading $pkg";
		3797
		3798	if (my $cb = $pkg->can ("unload")) {
		3799	eval {
		3800	$cb->($pkg);
		3801	1
		3802	} or warn "$pkg unloaded, but with errors: $@";
		3803	}
		3804
		3805	warn "... clearing $pkg";
		3806	clear_package $pkg;
		3807	}
		3808
		3809	warn "unloading all perl modules loaded from $LIBDIR";
		3810	while (my ($k, $v) = each %INC) {
		3811	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3812
		3813	warn "... unloading $k";
		3814	delete $INC{$k};
		3815
		3816	$k =~ s/\.pm$//;
		3817	$k =~ s/\//::/g;
		3818
		3819	if (my $cb = $k->can ("unload_module")) {
		3820	$cb->();
		3821	}
		3822
		3823	clear_package $k;
		3824	}
		3825
		3826	warn "getting rid of safe::, as good as possible";
		3827	clear_package "safe::$_"
		3828	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3829
		3830	warn "unloading cf.pm \"a bit\"";
		3831	delete $INC{"cf.pm"};
		3832	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		3833
		3834	# don't, removes xs symbols, too,
		3835	# and global variables created in xs
		3836	#clear_package __PACKAGE__;
		3837
		3838	warn "unload completed, starting to reload now";
		3839
		3840	warn "reloading cf.pm";
		3841	require cf;
		3842	cf::_connect_to_perl_1;
		3843
		3844	warn "loading config and database again";
		3845	cf::reload_config;
		3846
		3847	warn "loading extensions";
		3848	cf::load_extensions;
		3849
		3850	if ($REATTACH_ON_RELOAD) {
		3851	warn "reattaching attachments to objects/players";
		3852	_global_reattach; # objects, sockets
		3853	warn "reattaching attachments to maps";
		3854	reattach $_ for values %MAP;
		3855	warn "reattaching attachments to players";
		3856	reattach $_ for values %PLAYER;
		3857	}
		3858
		3859	warn "running post_init jobs";
		3860	(pop @POST_INIT)->(1) while @POST_INIT;
		3861
		3862	warn "leaving sync_job";
		3863
		3864	1
		3865	} or do {
		3866	warn $@;
		3867	cf::cleanup "error while reloading, exiting.";
		3868	};
		3869
		3870	warn "reloaded";
		3871	--$RELOAD;
		3872	}
		3873
		3874	$t1 = EV::time - $t1;
		3875	warn "reload completed in ${t1}s\n";
		3876	};
		3877
		3878	our $RELOAD_WATCHER; # used only during reload
		3879
		3880	sub reload_perl() {
		3881	# doing reload synchronously and two reloads happen back-to-back,
		3882	# coro crashes during coro_state_free->destroy here.
		3883
		3884	$RELOAD_WATCHER ||= cf::async {
		3885	Coro::AIO::aio_wait cache_extensions;
		3886
		3887	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3888	do_reload_perl;
		3889	undef $RELOAD_WATCHER;
		3890	};
		3891	};
		3892	}
		3893
		3894	register_command "reload" => sub {
		3895	my ($who, $arg) = @_;
		3896
		3897	if ($who->flag (FLAG_WIZ)) {
		3898	$who->message ("reloading server.");
		3899	async {
		3900	$Coro::current->{desc} = "perl_reload";
		3901	reload_perl;
		3902	};
		3903	}
		3904	};
		3905
		3906	unshift @INC, $LIBDIR;
		3907
		3908	my $bug_warning = 0;
		3909
		3910	our @WAIT_FOR_TICK;
		3911	our @WAIT_FOR_TICK_BEGIN;
		3912
		3913	sub wait_for_tick {
		3914	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3915
		3916	my $signal = new Coro::Signal;
		3917	push @WAIT_FOR_TICK, $signal;
		3918	$signal->wait;
		3919	}
		3920
		3921	sub wait_for_tick_begin {
		3922	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3923
		3924	my $signal = new Coro::Signal;
		3925	push @WAIT_FOR_TICK_BEGIN, $signal;
		3926	$signal->wait;
		3927	}
		3928
		3929	sub tick {
		3930	if ($Coro::current != $Coro::main) {
		3931	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3932	unless ++$bug_warning > 10;
		3933	return;
		3934	}
		3935
		3936	cf::server_tick; # one server iteration
		3937
		3938	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
		3939
		3940	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3941	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3942	Coro::async_pool {
		3943	$Coro::current->{desc} = "runtime saver";
		3944	write_runtime_sync
		3945	or warn "ERROR: unable to write runtime file: $!";
		3946	};
		3947	}
		3948
		3949	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3950	$sig->send;
		3951	}
		3952	while (my $sig = shift @WAIT_FOR_TICK) {
		3953	$sig->send;
		3954	}
		3955
		3956	$LOAD = ($NOW - $TICK_START) / $TICK;
		3957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3958
		3959	if (0) {
		3960	if ($NEXT_TICK) {
		3961	my $jitter = $TICK_START - $NEXT_TICK;
		3962	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3963	warn "jitter $JITTER\n";#d#
		3964	}
		3965	}
		3966	}
1193		3967
1194	{	3968	{
1195	my $path = cf::localdir . "/database.pst";	3969	# configure BDB
1196		3970
1197	sub db_load() {	3971	BDB::min_parallel 16;
1198	warn "loading database $path\n";#d# remove later	3972	BDB::max_poll_reqs $TICK * 0.1;
1199	$DB = stat $path ? Storable::retrieve $path : { };	3973	$AnyEvent::BDB::WATCHER->priority (1);
1200	}
1201		3974
1202	my $pid;	3975	unless ($DB_ENV) {
		3976	$DB_ENV = BDB::db_env_create;
		3977	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3978	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3979	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3980	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3981	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1203		3982
1204	sub db_save() {	3983	cf::sync_job {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});
1225
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {
1232	@_ >= 2
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236
1237	sub db_put($$;$) {
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {	3984	eval {
1241	$DB->{$_[0]} = $_[1];	3985	BDB::db_env_open
1242	}	3986	$DB_ENV,
1243	db_dirty;	3987	$BDBDIR,
1244	}	3988	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3989	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3990	0666;
1245		3991
1246	cf::global->attach (	3992	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},
1251	);
1252	}
1253
1254	#############################################################################
1255	# the server's main()
1256
1257	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;
1260
1261	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;
1263	}
1264
1265	sub main {
1266	cfg_load;
1267	db_load;
1268	load_extensions;
1269	Event::loop;
1270	}
1271
1272	#############################################################################
1273	# initialisation
1274
1275	sub _perl_reload() {
1276	warn "reloading...";
1277
1278	eval {
1279	local $FREEZE = 1;
1280
1281	cf::emergency_save;
1282
1283	# cancel all watchers
1284	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}
1287
1288	# cancel all extension coros
1289	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();
1291
1292	# unload all extensions
1293	for (@exts) {
1294	warn "unloading <$_>";
1295	unload_extension $_;
1296	}
1297
1298	# unload all modules loaded from $LIBDIR
1299	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301
1302	warn "removing <$k>";
1303	delete $INC{$k};
1304
1305	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;
1307
1308	if (my $cb = $k->can ("unload_module")) {
1309	$cb->();
1310	}	3993	};
1311		3994
1312	Symbol::delete_package $k;	3995	cf::cleanup "db_env_open(db): $@" if $@;
1313	}	3996	};
		3997	}
1314		3998
1315	# sync database to disk	3999	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1316	cf::db_sync;	4000	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible
1320	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"
1327	delete $INC{"cf.pm"};
1328
1329	# don't, removes xs symbols, too,
1330	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;
1332
1333	# reload cf.pm
1334	warn "reloading cf.pm";
1335	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337
1338	# load config and database again
1339	cf::cfg_load;
1340	cf::db_load;
1341
1342	# load extensions
1343	warn "load extensions";
1344	cf::load_extensions;
1345
1346	# reattach attachments to objects
1347	warn "reattach";
1348	_global_reattach;
1349	};	4001	};
1350	warn $@ if $@;	4002	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1351		4003	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1352	warn "reloaded";
1353	};
1354
1355	sub perl_reload() {
1356	_perl_reload;
1357	}
1358
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {
1362	my ($who, $arg) = @_;
1363
1364	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");
1366	_perl_reload;
1367	}	4004	};
1368	};	4005	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4006	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4007	};
		4008	}
1369		4009
1370	unshift @INC, $LIBDIR;	4010	{
		4011	# configure IO::AIO
1371		4012
1372	$TICK_WATCHER = Event->timer (	4013	IO::AIO::min_parallel 8;
1373	reentrant => 0,	4014	IO::AIO::max_poll_time $TICK * 0.1;
1374	prio => 0,	4015	undef $AnyEvent::AIO::WATCHER;
1375	at => $NEXT_TICK || $TICK,	4016	}
1376	data => WF_AUTOCANCEL,	4017
1377	cb => sub {	4018	my $_log_backtrace;
1378	unless ($FREEZE) {	4019
1379	cf::server_tick; # one server iteration	4020	sub _log_backtrace {
1380	$RUNTIME += $TICK;	4021	my ($msg, @addr) = @_;
		4022
		4023	$msg =~ s/\n//;
		4024
		4025	# limit the # of concurrent backtraces
		4026	if ($_log_backtrace < 2) {
		4027	++$_log_backtrace;
		4028	my $perl_bt = Carp::longmess $msg;
		4029	async {
		4030	$Coro::current->{desc} = "abt $msg";
		4031
		4032	my @bt = fork_call {
		4033	@addr = map { sprintf "%x", $_ } @addr;
		4034	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4035	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4036	or die "addr2line: $!";
		4037
		4038	my @funcs;
		4039	my @res = <$fh>;
		4040	chomp for @res;
		4041	while (@res) {
		4042	my ($func, $line) = splice @res, 0, 2, ();
		4043	push @funcs, "[$func] $line";
		4044	}
		4045
		4046	@funcs
		4047	};
		4048
		4049	LOG llevInfo, "[ABT] $perl_bt\n";
		4050	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4051	LOG llevInfo, "[ABT] $_\n" for @bt;
		4052	--$_log_backtrace;
1381	}	4053	};
1382		4054	} else {
1383	$NEXT_TICK += $TICK;	4055	LOG llevInfo, "[ABT] $msg\n";
1384		4056	LOG llevInfo, "[ABT] [suppressed]\n";
1385	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387
1388	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;
1390	},	4057	}
1391	);	4058	}
1392		4059
1393	IO::AIO::max_poll_time $TICK * 0.2;	4060	# load additional modules
		4061	require "cf/$_.pm" for @EXTRA_MODULES;
		4062	cf::_connect_to_perl_2;
1394		4063
1395	Event->io (fd => IO::AIO::poll_fileno,	4064	END { cf::emergency_save }
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);
1400
1401	# we must not ever block the main coroutine
1402	$Coro::idle = sub {
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1404	warn "FATAL: Coro::idle was called, major BUG\n";
1405	(Coro::unblock_sub {
1406	Event::one_event;
1407	})->();
1408	};
1409		4065
1410	1	4066	1
1411		4067

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