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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.556 by root, Sat Jul 3 01:49:18 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	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; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
112	=back	258	=back
113		259
114	=cut	260	=cut
115		261
116	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	269	my $msg = join "", @_;
119	utf8::encode $msg;
120		270
121	$msg .= "\n"	271	$msg .= "\n"
122	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
123		273
124	LOG llevError, "cfperl: $msg";	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	275
126	}	276	LOG llevWarn, $msg;
		277	};
		278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
127		292
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		300
135	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	302	# within the Safe compartment.
137	for my $pkg (qw(	303	for my $pkg (qw(
138	cf::global cf::attachable	304	cf::global cf::attachable
139	cf::object cf::object::player	305	cf::object cf::object::player
140	cf::client cf::player	306	cf::client cf::player
141	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
142	cf::map cf::party cf::region	309	cf::party cf::region
143	)) {	310	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	312	}
147		313
148	$Event::DIED = sub {	314	$EV::DIED = sub {
149	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
150	};	316	};
151		317
152	my %ext_pkg;	318	#############################################################################
153	my @exts;
154	my @hook;
155		319
156	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
157		321
158	=over 4	322	=over 4
159		323
160	=cut	324	=item dumpval $ref
161		325
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
163		327
		328	sub dumpval {
		329	eval {
		330	local $SIG{__DIE__};
		331	my $d;
		332	if (1) {
		333	$d = new Data::Dumper([$_[0]], ["*var"]);
		334	$d->Terse(1);
		335	$d->Indent(2);
		336	$d->Quotekeys(0);
		337	$d->Useqq(1);
		338	#$d->Bless(...);
		339	$d->Seen($_[1]) if @_ > 1;
		340	$d = $d->Dump();
		341	}
		342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		343	$d
		344	} || "[unable to dump $_[0]: '$@']";
		345	}
		346
164	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
165		348
166	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
167		350
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
176		352
177	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
178		354
179	=cut	355	=cut
180		356
181	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
183	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item $ref = cf::yaml_load $scalar
		363
		364	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		365
		366	=cut
		367
		368	sub fork_call(&@);
		369
		370	sub yaml_load($) {
		371	fork_call { YAML::XS::Load $_[0] } @_
184	}	372	}
		373
		374	=item cf::post_init { BLOCK }
		375
		376	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		377	but I<before> the server starts ticking again.
		378
		379	The codeblock will have a single boolean argument to indicate whether this
		380	is a reload or not.
		381
		382	=cut
		383
		384	sub post_init(&) {
		385	push @POST_INIT, shift;
		386	}
		387
		388	sub _post_init {
		389	trace "running post_init jobs";
		390
		391	# run them in parallel...
		392
		393	my @join;
		394
		395	while () {
		396	push @join, map &Coro::async ($_, 0), @POST_INIT;
		397	@POST_INIT = ();
		398
		399	@join or last;
		400
		401	(pop @join)->join;
		402	}
		403	}
		404
		405	=item cf::lock_wait $string
		406
		407	Wait until the given lock is available. See cf::lock_acquire.
		408
		409	=item my $lock = cf::lock_acquire $string
		410
		411	Wait until the given lock is available and then acquires it and returns
		412	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		413	for example when the coroutine gets canceled), the lock is automatically
		414	returned.
		415
		416	Locks are *not* recursive, locking from the same coro twice results in a
		417	deadlocked coro.
		418
		419	Lock names should begin with a unique identifier (for example, cf::map::find
		420	uses map_find and cf::map::load uses map_load).
		421
		422	=item $locked = cf::lock_active $string
		423
		424	Return true if the lock is currently active, i.e. somebody has locked it.
		425
		426	=cut
		427
		428	our $LOCKS = new Coro::SemaphoreSet;
		429
		430	sub lock_wait($) {
		431	$LOCKS->wait ($_[0]);
		432	}
		433
		434	sub lock_acquire($) {
		435	$LOCKS->guard ($_[0])
		436	}
		437
		438	sub lock_active($) {
		439	$LOCKS->count ($_[0]) < 1
		440	}
		441
		442	sub freeze_mainloop {
		443	tick_inhibit_inc;
		444
		445	&Guard::guard (\&tick_inhibit_dec);
		446	}
		447
		448	=item cf::periodic $interval, $cb
		449
		450	Like EV::periodic, but randomly selects a starting point so that the actions
		451	get spread over time.
		452
		453	=cut
		454
		455	sub periodic($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
		512	}
		513	};
		514
		515	sub get_slot($;$$) {
		516	return if tick_inhibit || $Coro::current == $Coro::main;
		517
		518	my ($time, $pri, $name) = @_;
		519
		520	$time = clamp $time, 0.01, $TICK * .6;
		521
		522	my $sig = new Coro::Signal;
		523
		524	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		525	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		526	$SLOT_QUEUE->ready;
		527	$sig->wait;
		528	}
		529
		530	=item cf::async { BLOCK }
		531
		532	Currently the same as Coro::async_pool, meaning you cannot use
		533	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		534	thing you are allowed to do is call C<prio> on it.
		535
		536	=cut
		537
		538	BEGIN { *async = \&Coro::async_pool }
185		539
186	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
187		541
188	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
191		546
192	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
195	fast or be very important.	550	fast or be very important.
…		…
197	=cut	552	=cut
198		553
199	sub sync_job(&) {	554	sub sync_job(&) {
200	my ($job) = @_;	555	my ($job) = @_;
201		556
202	if ($Coro::current == $Coro::main) {	557	if (in_main) {
		558	my $time = AE::time;
		559
203	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
205		562
206	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	564
208	local $FREEZE = 1;	565	my $freeze_guard = freeze_mainloop;
209		566
210	my $busy = 1;	567	my $busy = 1;
211	my @res;	568	my @res;
212		569
213	(Coro::async {	570	(async {
		571	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	572	@res = eval { $job->() };
215	warn $@ if $@;	573	error $@ if $@;
216	undef $busy;	574	undef $busy;
217	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
218		576
219	while ($busy) {	577	while ($busy) {
		578	if (Coro::nready) {
220	Coro::cede_notself;	579	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
222	}	582	}
		583	}
		584
		585	my $time = AE::time - $time;
		586
		587	$TICK_START += $time; # do not account sync jobs to server load
223		588
224	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
225	} else {	590	} else {
226	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
227		592
228	$job->()	593	$job->()
229	}	594	}
230	}	595	}
231		596
232	=item $coro = cf::coro { BLOCK }	597	=item $coro = cf::async_ext { BLOCK }
233		598
234	Creates and returns a new coro. This coro is automcatially being canceled	599	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	600	extension calling this is being unloaded.
236		601
237	=cut	602	=cut
238		603
239	sub coro(&) {	604	sub async_ext(&) {
240	my $cb = shift;	605	my $cb = shift;
241		606
242	my $coro; $coro = async {	607	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		608
249	$coro->on_destroy (sub {	609	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	610	delete $EXT_CORO{$coro+0};
251	});	611	});
252	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
253		613
254	$coro	614	$coro
255	}	615	}
256		616
257	sub write_runtime {	617	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		618
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	619	Executes the given code block with the given arguments in a seperate
261	or return;	620	process, returning the results. Everything must be serialisable with
		621	Coro::Storable. May, of course, block. Note that the executed sub may
		622	never block itself or use any form of event handling.
262		623
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	624	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		625
267	aio_fsync $fh	626	sub post_fork {
268	and return;	627	reset_signals;
		628	}
269		629
270	close $fh	630	sub fork_call(&@) {
271	or return;	631	my ($cb, @args) = @_;
272		632
273	aio_rename "$runtime~", $runtime	633	# we seemingly have to make a local copy of the whole thing,
274	and return;	634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
275		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
276	1	646	(
		647	"counter value" => cf::object::object_count,
		648	"objects created" => cf::object::create_count,
		649	"objects destroyed" => cf::object::destroy_count,
		650	"freelist size" => cf::object::free_count,
		651	"allocated objects" => cf::object::objects_size,
		652	"active objects" => cf::object::actives_size,
		653	)
		654	}
		655
		656	=item $coin = coin_from_name $name
		657
		658	=cut
		659
		660	our %coin_alias = (
		661	"silver" => "silvercoin",
		662	"silvercoin" => "silvercoin",
		663	"silvercoins" => "silvercoin",
		664	"gold" => "goldcoin",
		665	"goldcoin" => "goldcoin",
		666	"goldcoins" => "goldcoin",
		667	"platinum" => "platinacoin",
		668	"platinumcoin" => "platinacoin",
		669	"platinumcoins" => "platinacoin",
		670	"platina" => "platinacoin",
		671	"platinacoin" => "platinacoin",
		672	"platinacoins" => "platinacoin",
		673	"royalty" => "royalty",
		674	"royalties" => "royalty",
		675	);
		676
		677	sub coin_from_name($) {
		678	$coin_alias{$_[0]}
		679	? cf::arch::find $coin_alias{$_[0]}
		680	: undef
		681	}
		682
		683	=item $value = cf::db_get $family => $key
		684
		685	Returns a single value from the environment database.
		686
		687	=item cf::db_put $family => $key => $value
		688
		689	Stores the given C<$value> in the family. It can currently store binary
		690	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		691
		692	=item $db = cf::db_table "name"
		693
		694	Create and/or open a new database table. The string must not be "db" and must be unique
		695	within each server.
		696
		697	=cut
		698
		699	sub db_table($) {
		700	cf::error "db_get called from main context"
		701	if $Coro::current == $Coro::main;
		702
		703	my ($name) = @_;
		704	my $db = BDB::db_create $DB_ENV;
		705
		706	eval {
		707	$db->set_flags (BDB::CHKSUM);
		708
		709	utf8::encode $name;
		710	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		711	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		712	cf::cleanup "db_open(db): $!" if $!;
		713	};
		714	cf::cleanup "db_open(db): $@" if $@;
		715
		716	$db
		717	}
		718
		719	our $DB;
		720
		721	sub db_init {
		722	$DB ||= db_table "db";
		723	}
		724
		725	sub db_get($$) {
		726	my $key = "$_[0]/$_[1]";
		727
		728	cf::error "db_get called from main context"
		729	if $Coro::current == $Coro::main;
		730
		731	BDB::db_get $DB, undef, $key, my $data;
		732
		733	$! ? ()
		734	: $data
		735	}
		736
		737	sub db_put($$$) {
		738	BDB::dbreq_pri 4;
		739	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		740	}
		741
		742	=item cf::cache $id => [$paths...], $processversion => $process
		743
		744	Generic caching function that returns the value of the resource $id,
		745	caching and regenerating as required.
		746
		747	This function can block.
		748
		749	=cut
		750
		751	sub cache {
		752	my ($id, $src, $processversion, $process) = @_;
		753
		754	my $meta =
		755	join "\x00",
		756	$processversion,
		757	map {
		758	aio_stat $_
		759	and Carp::croak "$_: $!";
		760
		761	($_, (stat _)[7,9])
		762	} @$src;
		763
		764	my $dbmeta = db_get cache => "$id/meta";
		765	if ($dbmeta ne $meta) {
		766	# changed, we may need to process
		767
		768	my @data;
		769	my $md5;
		770
		771	for (0 .. $#$src) {
		772	0 <= aio_load $src->[$_], $data[$_]
		773	or Carp::croak "$src->[$_]: $!";
		774	}
		775
		776	# if processing is expensive, check
		777	# checksum first
		778	if (1) {
		779	$md5 =
		780	join "\x00",
		781	$processversion,
		782	map {
		783	cf::cede_to_tick;
		784	($src->[$_], Digest::MD5::md5_hex $data[$_])
		785	} 0.. $#$src;
		786
		787
		788	my $dbmd5 = db_get cache => "$id/md5";
		789	if ($dbmd5 eq $md5) {
		790	db_put cache => "$id/meta", $meta;
		791
		792	return db_get cache => "$id/data";
		793	}
		794	}
		795
		796	my $t1 = Time::HiRes::time;
		797	my $data = $process->(\@data);
		798	my $t2 = Time::HiRes::time;
		799
		800	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		801
		802	db_put cache => "$id/data", $data;
		803	db_put cache => "$id/md5" , $md5;
		804	db_put cache => "$id/meta", $meta;
		805
		806	return $data;
		807	}
		808
		809	db_get cache => "$id/data"
		810	}
		811
		812	=item cf::datalog type => key => value, ...
		813
		814	Log a datalog packet of the given type with the given key-value pairs.
		815
		816	=cut
		817
		818	sub datalog($@) {
		819	my ($type, %kv) = @_;
		820	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	821	}
278		822
279	=back	823	=back
280		824
281	=cut	825	=cut
282		826
283	#############################################################################	827	#############################################################################
284		828
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	829	=head2 ATTACHABLE OBJECTS
396		830
397	Many objects in crossfire are so-called attachable objects. That means you can	831	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	832	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
400		834
401	In the following description, CLASS can be any of C<global>, C<object>	835	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	836	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	837	Deliantra).
404		838
405	=over 4	839	=over 4
406		840
407	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
408		842
…		…
452	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
453		887
454	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
456		890
457	Some classes such as crossfire maps and objects can specify attachments	891	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	892	that are attached at load/instantiate time, thus the need for a name.
459		893
460	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
461		895
462	=over 4	896	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	956	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	957	our @CB_MAP = ();
524		958
525	my %attachment;	959	my %attachment;
526		960
		961	sub cf::attachable::thawer_merge {
		962	# simply override everything except _meta
		963	local $_[0]{_meta};
		964	%{$_[0]} = %{$_[1]};
		965	}
		966
527	sub _attach_cb($$$$) {	967	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	968	my ($registry, $event, $prio, $cb) = @_;
529		969
530	use sort 'stable';	970	use sort 'stable';
531		971
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	1005	$registry = $CB_TYPE[$object_type] ||= [];
566		1006
567	} elsif ($type eq "subtype") {	1007	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	1008	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	1009	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1010	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		1011
572	} elsif ($type eq "package") {	1012	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	1013	my $pkg = shift @arg;
574		1014
575	while (my ($name, $id) = each %cb_id) {	1015	while (my ($name, $id) = each %cb_id) {
…		…
580		1020
581	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1023
584	} elsif (ref $type) {	1024	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
586		1026
587	} else {	1027	} else {
588	shift @arg;	1028	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
590	}	1030	}
591	}	1031	}
592	}	1032	}
593		1033
594	sub _object_attach {	1034	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
605	}	1045	}
606		1046
607	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
608	} else {	1048	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1050	}
611		1051
612	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
613	}	1053	}
614		1054
…		…
616	if (ref $_[0]) {	1056	if (ref $_[0]) {
617	_object_attach @_;	1057	_object_attach @_;
618	} else {	1058	} else {
619	_attach shift->_attach_registry, @_;	1059	_attach shift->_attach_registry, @_;
620	}	1060	}
		1061	_recalc_want;
621	};	1062	};
622		1063
623	# all those should be optimised	1064	# all those should be optimised
624	sub cf::attachable::detach {	1065	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1066	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1069	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1070	reattach ($obj);
630	} else {	1071	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1072	Carp::croak "cannot, currently, detach class attachments";
632	}	1073	}
		1074	_recalc_want;
633	};	1075	};
634		1076
635	sub cf::attachable::attached {	1077	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1078	my ($obj, $name) = @_;
637		1079
…		…
652	";	1094	";
653	die if $@;	1095	die if $@;
654	}	1096	}
655		1097
656	our $override;	1098	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1099	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1100
659	sub override {	1101	sub override {
660	$override = 1;	1102	$override = 1;
661	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
662	}	1104	}
663		1105
664	sub do_invoke {	1106	sub do_invoke {
665	my $event = shift;	1107	my $event = shift;
666	my $callbacks = shift;	1108	my $callbacks = shift;
667		1109
668	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
669		1111
670	local $override;	1112	local $override;
671		1113
672	for (@$callbacks) {	1114	for (@$callbacks) {
673	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
674		1116
675	if ($@) {	1117	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1119	override;
679	}	1120	}
680		1121
681	return 1 if $override;	1122	return 1 if $override;
682	}	1123	}
683		1124
684	0	1125	0
685	}	1126	}
686		1127
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1129
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1131
691	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
692		1133
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1134	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1135	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1137
697	=back	1138	=back
698		1139
699	=cut	1140	=cut
700		1141
701	#############################################################################	1142	#############################################################################
702	# object support	1143	# object support
		1144
		1145	sub _object_equal($$);
		1146	sub _object_equal($$) {
		1147	my ($a, $b) = @_;
		1148
		1149	return 0 unless (ref $a) eq (ref $b);
		1150
		1151	if ("HASH" eq ref $a) {
		1152	my @ka = keys %$a;
		1153	my @kb = keys %$b;
		1154
		1155	return 0 if @ka != @kb;
		1156
		1157	for (0 .. $#ka) {
		1158	return 0 unless $ka[$_] eq $kb[$_];
		1159	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1160	}
		1161
		1162	} elsif ("ARRAY" eq ref $a) {
		1163
		1164	return 0 if @$a != @$b;
		1165
		1166	for (0 .. $#$a) {
		1167	return 0 unless _object_equal $a->[$_], $b->[$_];
		1168	}
		1169
		1170	} elsif ($a ne $b) {
		1171	return 0;
		1172	}
		1173
		1174	1
		1175	}
		1176
		1177	our $SLOW_MERGES;#d#
		1178	sub _can_merge {
		1179	my ($ob1, $ob2) = @_;
		1180
		1181	++$SLOW_MERGES;#d#
		1182
		1183	# we do the slow way here
		1184	return _object_equal $ob1, $ob2
		1185	}
703		1186
704	sub reattach {	1187	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1189	my ($obj) = @_;
		1190
		1191	# no longer needed after getting rid of delete_package?
		1192	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1193
708	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
709		1195
710	@$registry = ();	1196	@$registry = ();
711		1197
…		…
716	for (@$attach) {	1202	for (@$attach) {
717	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
719	}	1205	}
720	} else {	1206	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1208	}
723	}	1209	}
724	}	1210	}
725		1211
726	cf::attachable->attach (	1212	cf::attachable->attach (
727	prio => -1000000,	1213	prio => -1000000,
728	on_instantiate => sub {	1214	on_instantiate => sub {
729	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
730		1216
731	$data = from_json $data;	1217	$data = decode_json $data;
732		1218
733	for (@$data) {	1219	for (@$data) {
734	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
735		1221
736	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1238	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
754		1240
755	sync_job {	1241	sync_job {
756	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
759		1247
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1250	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1251	if ($cf::USE_FSYNC) {
		1252	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1253	aio_fsync $fh;
		1254	}
764	close $fh;	1255	aio_close $fh;
765		1256
766	if (@$objs) {	1257	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1258	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1261	aio_write $fh, 0, (length $data), $data, 0;
		1262	if ($cf::USE_FSYNC) {
		1263	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
771	aio_fsync $fh;	1264	aio_fsync $fh;
		1265	}
772	close $fh;	1266	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
774	}	1268	}
775	} else {	1269	} else {
776	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
777	}	1271	}
778		1272
779	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1277	} else {
781	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
782	}	1279	}
783	} else {	1280	} else {
784	aio_unlink $filename;	1281	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
786	}	1283	}
787	}	1284	};
788	}	1285	}
789		1286
790	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
792		1289
…		…
804	or return;	1301	or return;
805		1302
806	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
808	or return;	1305	or return;
		1306
809	$av = eval { (Storable::thaw <$av>)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
810	}	1309	}
811		1310
		1311	utf8::decode (my $decname = $filename);
		1312	trace sprintf "loading %s (%d,%d)\n",
		1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
812	return ($data, $av);	1316	($data, $av)
813	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
814		1324
815	#############################################################################	1325	#############################################################################
816	# command handling &c	1326	# command handling &c
817		1327
818	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1342	}
833		1343
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1345
836	Register a callbackf ro execution when the client sends an extcmd packet.	1346	Register a callback for execution when the client sends an (synchronous)
		1347	extcmd packet. Ext commands will be processed in the order they are
		1348	received by the server, like other user commands. The first argument is
		1349	the logged-in player. Ext commands can only be processed after a player
		1350	has logged in successfully.
837		1351
838	If the callback returns something, it is sent back as if reply was being	1352	If the callback returns something, it is sent back as if reply was being
839	called.	1353	called.
840		1354
		1355	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1356
		1357	Register a callback for execution when the client sends an (asynchronous)
		1358	exticmd packet. Exti commands are processed by the server as soon as they
		1359	are received, i.e. out of order w.r.t. other commands. The first argument
		1360	is a client socket. Exti commands can be received anytime, even before
		1361	log-in.
		1362
		1363	If the callback returns something, it is sent back as if reply was being
		1364	called.
		1365
841	=cut	1366	=cut
842		1367
843	sub register_extcmd {	1368	sub register_extcmd {
844	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
845		1370
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1371	$EXTCMD{$name} = $cb;
850	}	1372	}
		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
851		1381
852	cf::player->attach (	1382	cf::player->attach (
853	on_command => sub {	1383	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
855		1385
856	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
857	or return;	1387	or return;
858		1388
…		…
863	cf::override;	1393	cf::override;
864	},	1394	},
865	on_extcmd => sub {	1395	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
867		1397
868	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1399
870	if (ref $msg) {	1400	if (ref $msg) {
		1401	my ($type, $reply, @payload) =
		1402	"ARRAY" eq ref $msg
		1403	? @$msg
		1404	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1405
		1406	my @reply;
		1407
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
876	} else {	1415	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1417	}
879		1418
880	cf::override;	1419	cf::override;
881	},	1420	},
882	);	1421	);
883		1422
884	sub register {	1423	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1424	sub cache_extensions {
891	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
892		1426
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1429	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1430	}
943	}	1431	};
944		1432
945	# remove extcmds	1433	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	1434	}
959		1435
960	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
961	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1443	next unless -r $path;
963	eval {	1444
964	load_extension $ext;	1445	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1446	my $base = $1;
		1447	my $pkg = $1;
		1448	$pkg =~ s/[^[:word:]]/_/g;
		1449	$pkg = "ext::$pkg";
		1450
		1451	open my $fh, "<:utf8", $path
		1452	or die "$path: $!";
		1453
		1454	my $source = do { local $/; <$fh> };
		1455
		1456	my %ext = (
		1457	path => $path,
		1458	base => $base,
		1459	pkg => $pkg,
		1460	);
		1461
		1462	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1463	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1464
		1465	$ext{source} =
		1466	"package $pkg; use common::sense;\n"
		1467	. "#line 1 \"$path\"\n{\n"
		1468	. $source
		1469	. "\n};\n1";
		1470
		1471	$todo{$base} = \%ext;
		1472	}
		1473
		1474	my $pass = 0;
		1475	my %done;
		1476	while (%todo) {
		1477	my $progress;
		1478
		1479	++$pass;
		1480
		1481	ext:
		1482	while (my ($k, $v) = each %todo) {
		1483	for (split /,\s*/, $v->{meta}{depends}) {
		1484	next ext
		1485	unless exists $done{$_};
		1486	}
		1487
		1488	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1489
		1490	my $active = eval $v->{source};
		1491
		1492	if (length $@) {
		1493	error "$v->{path}: $@\n";
		1494
		1495	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1496	if exists $v->{meta}{mandatory};
		1497
		1498	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1499	delete $todo{$k};
		1500	} else {
		1501	$done{$k} = delete $todo{$k};
		1502	push @EXTS, $v->{pkg};
		1503	$progress = 1;
		1504
		1505	info "$v->{base}: extension inactive.\n"
		1506	unless $active;
		1507	}
965	1	1508	}
966	} or warn "$ext not loaded: $@";	1509
		1510	unless ($progress) {
		1511	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1512
		1513	while (my ($k, $v) = each %todo) {
		1514	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1515	if exists $v->{meta}{mandatory};
		1516	}
		1517	}
		1518	}
967	}	1519	};
968	}	1520	}
969		1521
970	#############################################################################	1522	#############################################################################
971	# load/save/clean perl data associated with a map
972		1523
973	*cf::mapsupport::on_clean = sub {	1524	=back
		1525
		1526	=head2 CORE EXTENSIONS
		1527
		1528	Functions and methods that extend core deliantra objects.
		1529
		1530	=cut
		1531
		1532	package cf::player;
		1533
		1534	use Coro::AIO;
		1535
		1536	=head3 cf::player
		1537
		1538	=over 4
		1539
		1540	=item cf::player::num_playing
		1541
		1542	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1543
		1544	=cut
		1545
		1546	sub num_playing {
		1547	scalar grep
		1548	$_->ob->map
		1549	&& !$_->hidden
		1550	&& !$_->ob->flag (cf::FLAG_WIZ),
		1551	cf::player::list
		1552	}
		1553
		1554	=item cf::player::find $login
		1555
		1556	Returns the given player object, loading it if necessary (might block).
		1557
		1558	=cut
		1559
		1560	sub playerdir($) {
		1561	"$PLAYERDIR/"
		1562	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1563	}
		1564
		1565	sub path($) {
		1566	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1567
		1568	(playerdir $login) . "/playerdata"
		1569	}
		1570
		1571	sub find_active($) {
		1572	$cf::PLAYER{$_[0]}
		1573	and $cf::PLAYER{$_[0]}->active
		1574	and $cf::PLAYER{$_[0]}
		1575	}
		1576
		1577	sub exists($) {
974	my ($map) = @_;	1578	my ($login) = @_;
975		1579
976	my $path = $map->tmpname;	1580	$cf::PLAYER{$login}
977	defined $path or return;	1581	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1582	}
990		1583
991	# TODO: compatibility cruft, remove when no longer needed	1584	sub find($) {
		1585	return $cf::PLAYER{$_[0]} || do {
		1586	my $login = $_[0];
		1587
		1588	my $guard = cf::lock_acquire "user_find:$login";
		1589
		1590	$cf::PLAYER{$_[0]} || do {
		1591	# rename old playerfiles to new ones
		1592	#TODO: remove when no longer required
		1593	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1594	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1595	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1596	aio_unlink +(playerdir $login) . "/$login.pl";
		1597
		1598	my $f = new_from_file cf::object::thawer path $login
		1599	or return;
		1600
		1601	my $pl = cf::player::load_pl $f
		1602	or return;
		1603
		1604	local $cf::PLAYER_LOADING{$login} = $pl;
		1605	$f->resolve_delayed_derefs;
		1606	$cf::PLAYER{$login} = $pl
		1607	}
		1608	}
		1609	}
		1610
992	cf::player->attach (	1611	cf::player->attach (
993	on_load => sub {	1612	on_load => sub {
994	my ($pl, $path) = @_;	1613	my ($pl, $path) = @_;
995		1614
996	for my $o (all_objects $pl->ob) {	1615	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1616	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1617
1000	%$o = %{ Storable::thaw pack "H*", $value };	1618	$pl->ob->current_weapon ($slots->[0]);
1001	}	1619	$pl->combat_ob ($slots->[1]);
1002	}	1620	$pl->ranged_ob ($slots->[2]);
1003	},	1621	},
1004	);	1622	);
1005		1623
1006	#############################################################################	1624	sub save($) {
		1625	my ($pl) = @_;
1007		1626
1008	=head2 CORE EXTENSIONS	1627	return if $pl->{deny_save};
1009		1628
1010	Functions and methods that extend core crossfire objects.	1629	my $path = path $pl;
		1630	my $guard = cf::lock_acquire "user_save:$path";
1011		1631
1012	=head3 cf::player	1632	return if $pl->{deny_save};
		1633
		1634	aio_mkdir playerdir $pl, 0770;
		1635	$pl->{last_save} = $cf::RUNTIME;
		1636
		1637	cf::get_slot 0.01;
		1638
		1639	# save slots, to be restored later
		1640	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1641
		1642	$pl->save_pl ($path);
		1643	cf::cede_to_tick;
		1644	}
		1645
		1646	sub new($) {
		1647	my ($login) = @_;
		1648
		1649	my $self = create;
		1650
		1651	$self->ob->name ($login);
		1652	$self->{deny_save} = 1;
		1653
		1654	$cf::PLAYER{$login} = $self;
		1655
		1656	$self
		1657	}
		1658
		1659	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1660
		1661	=cut
		1662
		1663	sub send_msg {
		1664	my $ns = shift->ns
		1665	or return;
		1666	$ns->send_msg (@_);
		1667	}
		1668
		1669	=item $pl->quit_character
		1670
		1671	Nukes the player without looking back. If logged in, the connection will
		1672	be destroyed. May block for a long time.
		1673
		1674	=cut
		1675
		1676	sub quit_character {
		1677	my ($pl) = @_;
		1678
		1679	my $name = $pl->ob->name;
		1680
		1681	$pl->{deny_save} = 1;
		1682	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1683
		1684	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1685	$pl->deactivate;
		1686
		1687	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1688	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1689	ext::highscore::check ($pl->ob);
		1690
		1691	$pl->ns->destroy if $pl->ns;
		1692
		1693	my $path = playerdir $pl;
		1694	my $temp = "$path~$cf::RUNTIME~deleting~";
		1695	aio_rename $path, $temp;
		1696	delete $cf::PLAYER{$pl->ob->name};
		1697	$pl->destroy;
		1698
		1699	my $prefix = qr<^~\Q$name\E/>;
		1700
		1701	# nuke player maps
		1702	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1703
		1704	IO::AIO::aio_rmtree $temp;
		1705	}
		1706
		1707	=item $pl->kick
		1708
		1709	Kicks a player out of the game. This destroys the connection.
		1710
		1711	=cut
		1712
		1713	sub kick {
		1714	my ($pl, $kicker) = @_;
		1715
		1716	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1717	$pl->killer ("kicked");
		1718	$pl->ns->destroy;
		1719	}
		1720
		1721	=item cf::player::list_logins
		1722
		1723	Returns am arrayref of all valid playernames in the system, can take a
		1724	while and may block, so not sync_job-capable, ever.
		1725
		1726	=cut
		1727
		1728	sub list_logins {
		1729	my $dirs = aio_readdir $PLAYERDIR
		1730	or return [];
		1731
		1732	my @logins;
		1733
		1734	for my $login (@$dirs) {
		1735	my $path = path $login;
		1736
		1737	# a .pst is a dead give-away for a valid player
		1738	# if no pst file found, open and chekc for blocked users
		1739	if (aio_stat "$path.pst") {
		1740	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1741	aio_read $fh, 0, 512, my $buf, 0 or next;
		1742	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1743	}
		1744
		1745	utf8::decode $login;
		1746	push @logins, $login;
		1747	}
		1748
		1749	\@logins
		1750	}
		1751
		1752	=item $player->maps
		1753
		1754	=item cf::player::maps $login
		1755
		1756	Returns an arrayref of map paths that are private for this
		1757	player. May block.
		1758
		1759	=cut
		1760
		1761	sub maps($) {
		1762	my ($pl) = @_;
		1763
		1764	$pl = ref $pl ? $pl->ob->name : $pl;
		1765
		1766	my $files = aio_readdir playerdir $pl
		1767	or return;
		1768
		1769	my @paths;
		1770
		1771	for (@$files) {
		1772	utf8::decode $_;
		1773	next if /\.(?:pl|pst)$/;
		1774	next unless /^$PATH_SEP/o;
		1775
		1776	push @paths, cf::map::normalise "~$pl/$_";
		1777	}
		1778
		1779	\@paths
		1780	}
		1781
		1782	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1783
		1784	Expand deliantra pod fragments into protocol xml.
		1785
		1786	=item $player->ext_reply ($msgid, @msg)
		1787
		1788	Sends an ext reply to the player.
		1789
		1790	=cut
		1791
		1792	sub ext_reply($$@) {
		1793	my ($self, $id, @msg) = @_;
		1794
		1795	$self->ns->ext_reply ($id, @msg)
		1796	}
		1797
		1798	=item $player->ext_msg ($type, @msg)
		1799
		1800	Sends an ext event to the client.
		1801
		1802	=cut
		1803
		1804	sub ext_msg($$@) {
		1805	my ($self, $type, @msg) = @_;
		1806
		1807	$self->ns->ext_msg ($type, @msg);
		1808	}
		1809
		1810	=head3 cf::region
1013		1811
1014	=over 4	1812	=over 4
1015		1813
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1814	=cut
1021		1815
1022	sub cf::player::exists($) {	1816	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1817
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1818	=item cf::region::find_by_path $path
1028		1819
1029	Sends an ext reply to the player.	1820	Tries to decuce the likely region for a map knowing only its path.
1030		1821
1031	=cut	1822	=cut
1032		1823
1033	sub cf::player::ext_reply($$$%) {	1824	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1825	my ($path) = @_;
1035		1826
1036	$msg{msgid} = $id;	1827	$path =~ s/^~[^\/]*//; # skip ~login
1037		1828
1038	$self->send ("ext " . to_json \%msg);	1829	my ($match, $specificity);
		1830
		1831	for my $region (list) {
		1832	if ($region->{match} && $path =~ $region->{match}) {
		1833	($match, $specificity) = ($region, $region->specificity)
		1834	if $region->specificity > $specificity;
		1835	}
		1836	}
		1837
		1838	$match
1039	}	1839	}
1040		1840
1041	=back	1841	=back
1042
1043		1842
1044	=head3 cf::map	1843	=head3 cf::map
1045		1844
1046	=over 4	1845	=over 4
1047		1846
…		…
1050	package cf::map;	1849	package cf::map;
1051		1850
1052	use Fcntl;	1851	use Fcntl;
1053	use Coro::AIO;	1852	use Coro::AIO;
1054		1853
		1854	use overload
		1855	'""' => \&as_string,
		1856	fallback => 1;
		1857
1055	our $MAX_RESET = 7200;	1858	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1859	our $DEFAULT_RESET = 3000;
1057		1860
1058	sub generate_random_map {	1861	sub generate_random_map {
		1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1865
		1866	$self->_create_random_map ($rmp);
		1867	}
		1868
		1869	=item cf::map->register ($regex, $prio)
		1870
		1871	Register a handler for the map path matching the given regex at the
		1872	givne priority (higher is better, built-in handlers have priority 0, the
		1873	default).
		1874
		1875	=cut
		1876
		1877	sub register {
		1878	my (undef, $regex, $prio) = @_;
		1879	my $pkg = caller;
		1880
		1881	push @{"$pkg\::ISA"}, __PACKAGE__;
		1882
		1883	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1884	}
		1885
		1886	# also paths starting with '/'
		1887	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1888
		1889	sub thawer_merge {
		1890	my ($self, $merge) = @_;
		1891
		1892	# we have to keep some variables in memory intact
		1893	local $self->{path};
		1894	local $self->{load_path};
		1895
		1896	$self->SUPER::thawer_merge ($merge);
		1897	}
		1898
		1899	sub normalise {
1059	my ($path, $rmp) = @_;	1900	my ($path, $base) = @_;
1060		1901
1061	# mit "rum" bekleckern, nicht	1902	$path = "$path"; # make sure it's a string
1062	cf::map::_create_random_map	1903
		1904	$path =~ s/\.map$//;
		1905
		1906	# map plan:
		1907	#
		1908	# /! non-realised random map exit (special hack!)
		1909	# {... are special paths that are not being touched
		1910	# ?xxx/... are special absolute paths
		1911	# ?random/... random maps
		1912	# /... normal maps
		1913	# ~user/... per-player map of a specific user
		1914
		1915	$path =~ s/$PATH_SEP/\//go;
		1916
		1917	# treat it as relative path if it starts with
		1918	# something that looks reasonable
		1919	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1920	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1921
		1922	$base =~ s{[^/]+/?$}{};
		1923	$path = "$base/$path";
		1924	}
		1925
		1926	for ($path) {
		1927	redo if s{/\.?/}{/};
		1928	redo if s{/[^/]+/\.\./}{/};
		1929	}
		1930
1063	$path,	1931	$path
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})
1075	}	1932	}
1076		1933
1077	# and all this just because we cannot iterate over	1934	sub new_from_path {
1078	# all maps in C++...	1935	my (undef, $path, $base) = @_;
1079	sub change_all_map_light {	1936
		1937	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1938
		1939	$path = normalise $path, $base;
		1940
		1941	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1942	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1943	my $self = bless cf::map::new, $pkg;
		1944	$self->{path} = $path; $self->path ($path);
		1945	$self->init; # pass $1 etc.
		1946	return $self;
		1947	}
		1948	}
		1949
		1950	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1951	()
		1952	}
		1953
		1954	sub init {
1080	my ($change) = @_;	1955	my ($self) = @_;
1081		1956
1082	$_->change_map_light ($change) for values %cf::MAP;	1957	$self
1083	}	1958	}
1084		1959
		1960	sub as_string {
		1961	my ($self) = @_;
		1962
		1963	"$self->{path}"
		1964	}
		1965
		1966	# the displayed name, this is a one way mapping
		1967	sub visible_name {
		1968	&as_string
		1969	}
		1970
		1971	# the original (read-only) location
		1972	sub load_path {
		1973	my ($self) = @_;
		1974
		1975	"$MAPDIR/$self->{path}.map"
		1976	}
		1977
		1978	# the temporary/swap location
		1979	sub save_path {
		1980	my ($self) = @_;
		1981
		1982	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1983	"$TMPDIR/$path.map"
		1984	}
		1985
		1986	# the unique path, undef == no special unique path
		1987	sub uniq_path {
		1988	my ($self) = @_;
		1989
		1990	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1991	"$UNIQUEDIR/$path"
		1992	}
		1993
		1994	sub decay_objects {
		1995	my ($self) = @_;
		1996
		1997	return if $self->{deny_reset};
		1998
		1999	$self->do_decay_objects;
		2000	}
		2001
		2002	sub unlink_save {
		2003	my ($self) = @_;
		2004
		2005	utf8::encode (my $save = $self->save_path);
		2006	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2007	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2008	}
		2009
1085	sub try_load_header($) {	2010	sub load_header_from($) {
1086	my ($path) = @_;	2011	my ($self, $path) = @_;
1087		2012
1088	utf8::encode $path;	2013	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	2014	my $f = new_from_file cf::object::thawer $path
1090	or return;	2015	or return;
1091		2016
1092	my $map = cf::map::new	2017	$self->_load_header ($f)
1093	or return;	2018	or return;
1094		2019
1095	$map->load_header ($path)	2020	local $MAP_LOADING{$self->{path}} = $self;
		2021	$f->resolve_delayed_derefs;
		2022
		2023	$self->{load_path} = $path;
		2024
		2025	1
		2026	}
		2027
		2028	sub load_header_orig {
		2029	my ($self) = @_;
		2030
		2031	$self->load_header_from ($self->load_path)
		2032	}
		2033
		2034	sub load_header_temp {
		2035	my ($self) = @_;
		2036
		2037	$self->load_header_from ($self->save_path)
		2038	}
		2039
		2040	sub prepare_temp {
		2041	my ($self) = @_;
		2042
		2043	$self->last_access ((delete $self->{last_access})
		2044	|| $cf::RUNTIME); #d#
		2045	# safety
		2046	$self->{instantiate_time} = $cf::RUNTIME
		2047	if $self->{instantiate_time} > $cf::RUNTIME;
		2048	}
		2049
		2050	sub prepare_orig {
		2051	my ($self) = @_;
		2052
		2053	$self->{load_original} = 1;
		2054	$self->{instantiate_time} = $cf::RUNTIME;
		2055	$self->last_access ($cf::RUNTIME);
		2056	$self->instantiate;
		2057	}
		2058
		2059	sub load_header {
		2060	my ($self) = @_;
		2061
		2062	if ($self->load_header_temp) {
		2063	$self->prepare_temp;
		2064	} else {
		2065	$self->load_header_orig
1096	or return;	2066	or return;
		2067	$self->prepare_orig;
		2068	}
1097		2069
1098	$map->{load_path} = $path;	2070	$self->{deny_reset} = 1
		2071	if $self->no_reset;
1099		2072
1100	$map	2073	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2074	unless $self->default_region;
1102		2075
		2076	1
		2077	}
		2078
		2079	sub find;
1103	sub find_map {	2080	sub find {
1104	my ($path, $origin) = @_;	2081	my ($path, $origin) = @_;
1105		2082
1106	#warn "find_map<$path,$origin>\n";#d#	2083	cf::cede_to_tick;
1107		2084
1108	$path = new cf::path $path, $origin && $origin->path;	2085	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		2086
		2087	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2088	my $guard2 = cf::lock_acquire "map_find:$path";
		2089
1111	$cf::MAP{$key} || do {	2090	$cf::MAP{$path} || do {
1112	# do it the slow way	2091	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2092	or return;
1127		2093
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2094	$map->{last_save} = $cf::RUNTIME;
1139		2095
1140	if ($map->should_reset) {	2096	$map->load_header
		2097	or return;
		2098
		2099	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2100	# doing this can freeze the server in a sync job, obviously
		2101	#$cf::WAIT_FOR_TICK->wait;
		2102	undef $guard2;
		2103	undef $guard1;
1141	$map->reset;	2104	$map->reset;
1142	$map = find_map $path;	2105	return find $path;
1143	}	2106	}
1144		2107
1145	$cf::MAP{$key} = $map	2108	$cf::MAP{$path} = $map
1146	}	2109	}
1147	}	2110	}
		2111
		2112	sub pre_load { }
		2113	#sub post_load { } # XS
1148		2114
1149	sub load {	2115	sub load {
1150	my ($self) = @_;	2116	my ($self) = @_;
1151		2117
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2118	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2119
1156	my $path = $self->{path};	2120	my $path = $self->{path};
1157		2121
		2122	{
		2123	my $guard = cf::lock_acquire "map_data:$path";
		2124
		2125	return unless $self->valid;
		2126	return unless $self->in_memory == cf::MAP_SWAPPED;
		2127
		2128	$self->in_memory (cf::MAP_LOADING);
		2129
1158	$self->alloc;	2130	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2131
		2132	$self->pre_load;
		2133	cf::cede_to_tick;
		2134
		2135	my $f = new_from_file cf::object::thawer $self->{load_path};
		2136	$f->skip_block;
		2137	$self->_load_objects ($f)
1160	or return;	2138	or return;
1161		2139
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2140	$self->post_load_original
1163	if delete $self->{load_original};	2141	if delete $self->{load_original};
1164		2142
1165	if (my $uniq = $path->uniq_path) {	2143	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2144	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2145	unless (aio_stat $uniq) {
		2146	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2147	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2148	$self->_load_objects ($f);
		2149	$f->resolve_delayed_derefs;
		2150	}
1170	}	2151	}
1171	}	2152	}
1172		2153
		2154	$f->resolve_delayed_derefs;
		2155
		2156	cf::cede_to_tick;
1173	# now do the right thing for maps	2157	# now do the right thing for maps
1174	$self->link_multipart_objects;	2158	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2159	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2160	unless $self->difficulty;
		2161	cf::cede_to_tick;
		2162
		2163	unless ($self->{deny_activate}) {
		2164	$self->decay_objects;
		2165	$self->fix_auto_apply;
		2166	$self->update_buttons;
		2167	cf::cede_to_tick;
1186	$self->activate;	2168	$self->activate;
1187	}	2169	}
1188		2170
		2171	$self->{last_save} = $cf::RUNTIME;
		2172	$self->last_access ($cf::RUNTIME);
		2173
1189	$self->in_memory (cf::MAP_IN_MEMORY);	2174	$self->in_memory (cf::MAP_ACTIVE);
1190	}	2175	}
1191		2176
1192	sub load_map_sync {	2177	$self->post_load;
		2178
		2179	1
		2180	}
		2181
		2182	# customize the map for a given player, i.e.
		2183	# return the _real_ map. used by e.g. per-player
		2184	# maps to change the path to ~playername/mappath
		2185	sub customise_for {
		2186	my ($self, $ob) = @_;
		2187
		2188	return find "~" . $ob->name . "/" . $self->{path}
		2189	if $self->per_player;
		2190
		2191	# return find "?party/" . $ob->name . "/" . $self->{path}
		2192	# if $self->per_party;
		2193
		2194	$self
		2195	}
		2196
		2197	# find and load all maps in the 3x3 area around a map
		2198	sub load_neighbours {
		2199	my ($map) = @_;
		2200
		2201	my @neigh; # diagonal neighbours
		2202
		2203	for (0 .. 3) {
		2204	my $neigh = $map->tile_path ($_)
		2205	or next;
		2206	$neigh = find $neigh, $map
		2207	or next;
		2208	$neigh->load;
		2209
		2210	# now find the diagonal neighbours
		2211	push @neigh,
		2212	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2213	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2214	}
		2215
		2216	for (grep defined $_->[0], @neigh) {
		2217	my ($path, $origin) = @$_;
		2218	my $neigh = find $path, $origin
		2219	or next;
		2220	$neigh->load;
		2221	}
		2222	}
		2223
		2224	sub find_sync {
1193	my ($path, $origin) = @_;	2225	my ($path, $origin) = @_;
1194		2226
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2227	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2228	if $Coro::current == $Coro::main;
1196		2229
1197	cf::sync_job {	2230	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2231	}
1199	or return;	2232
		2233	sub do_load_sync {
		2234	my ($map) = @_;
		2235
		2236	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2237	if $Coro::current == $Coro::main;
		2238
1200	$map->load;	2239	$map->load;
1201	$map	2240	}
		2241
		2242	our %MAP_PREFETCH;
		2243	our $MAP_PREFETCHER = undef;
		2244
		2245	sub find_async {
		2246	my ($path, $origin, $load) = @_;
		2247
		2248	$path = normalise $path, $origin && $origin->{path};
		2249
		2250	if (my $map = $cf::MAP{$path}) {
		2251	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2252	}
		2253
		2254	$MAP_PREFETCH{$path} |= $load;
		2255
		2256	$MAP_PREFETCHER ||= cf::async {
		2257	$Coro::current->{desc} = "map prefetcher";
		2258
		2259	while (%MAP_PREFETCH) {
		2260	while (my ($k, $v) = each %MAP_PREFETCH) {
		2261	if (my $map = find $k) {
		2262	$map->load if $v;
		2263	}
		2264
		2265	delete $MAP_PREFETCH{$k};
		2266	}
		2267	}
		2268	undef $MAP_PREFETCHER;
		2269	};
		2270	$MAP_PREFETCHER->prio (6);
		2271
		2272	()
		2273	}
		2274
		2275	# common code, used by both ->save and ->swapout
		2276	sub _save {
		2277	my ($self) = @_;
		2278
		2279	$self->{last_save} = $cf::RUNTIME;
		2280
		2281	return unless $self->dirty;
		2282
		2283	my $save = $self->save_path; utf8::encode $save;
		2284	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2285
		2286	$self->{load_path} = $save;
		2287
		2288	return if $self->{deny_save};
		2289
		2290	local $self->{last_access} = $self->last_access;#d#
		2291
		2292	cf::async {
		2293	$Coro::current->{desc} = "map player save";
		2294	$_->contr->save for $self->players;
		2295	};
		2296
		2297	cf::get_slot 0.02;
		2298
		2299	if ($uniq) {
		2300	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2301	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2302	} else {
		2303	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1202	}	2304	}
1203	}	2305	}
1204		2306
1205	sub save {	2307	sub save {
1206	my ($self) = @_;	2308	my ($self) = @_;
1207		2309
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2311
1211	$self->{last_save} = $cf::RUNTIME;	2312	$self->_save;
1212
1213	return unless $self->dirty;
1214
1215	$self->{load_path} = $save;
1216
1217	return if $self->{deny_save};
1218
1219	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}
1225	}	2313	}
1226		2314
1227	sub swap_out {	2315	sub swap_out {
1228	my ($self) = @_;	2316	my ($self) = @_;
1229		2317
		2318	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2319
		2320	return if $self->in_memory != cf::MAP_ACTIVE;
		2321	return if $self->{deny_save};
1230	return if $self->players;	2322	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		2323
		2324	# first deactivate the map and "unlink" it from the core
		2325	$self->deactivate;
		2326	$_->clear_links_to ($self) for values %cf::MAP;
		2327	$self->in_memory (cf::MAP_SWAPPED);
		2328
		2329	# then atomically save
1234	$self->save;	2330	$self->_save;
		2331
		2332	# then free the map
1235	$self->clear;	2333	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2334	}
1238		2335
1239	sub reset_at {	2336	sub reset_at {
1240	my ($self) = @_;	2337	my ($self) = @_;
1241		2338
1242	# TODO: safety, remove and allow resettable per-player maps	2339	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2340	return 1e99 if $self->{deny_reset};
1245		2341
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2342	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2343	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2344
1250	$time + $to	2345	$time + $to
1251	}	2346	}
1252		2347
1253	sub should_reset {	2348	sub should_reset {
1254	my ($self) = @_;	2349	my ($self) = @_;
1255		2350
1256	$self->reset_at <= $cf::RUNTIME	2351	$self->reset_at <= $cf::RUNTIME
1257	}	2352	}
1258		2353
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	2354	sub reset {
1268	my ($self) = @_;	2355	my ($self) = @_;
1269		2356
		2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2358
1270	return if $self->players;	2359	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		2360
1273	warn "resetting map ", $self->path;#d#	2361	cf::trace "resetting map ", $self->path, "\n";
		2362
		2363	$self->in_memory (cf::MAP_SWAPPED);
		2364
		2365	# need to save uniques path
		2366	unless ($self->{deny_save}) {
		2367	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2368
		2369	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2370	if $uniq;
		2371	}
1274		2372
1275	delete $cf::MAP{$self->path};	2373	delete $cf::MAP{$self->path};
1276		2374
		2375	$self->deactivate;
1277	$_->clear_links_to ($self) for values %cf::MAP;	2376	$_->clear_links_to ($self) for values %cf::MAP;
		2377	$self->clear;
1278		2378
1279	$self->unlink_save;	2379	$self->unlink_save;
1280	$self->destroy;	2380	$self->destroy;
1281	}	2381	}
1282		2382
1283	sub customise_for {	2383	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		2384
1286	if ($map->per_player) {	2385	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2386	my ($self) = @_;
		2387
1288	}	2388	{
		2389	my $lock = cf::lock_acquire "map_data:$self->{path}";
1289		2390
1290	$map	2391	delete $cf::MAP{$self->path};
1291	}
1292		2392
1293	sub emergency_save {	2393	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		2394
1296	warn "enter emergency map save\n";	2395	bless $self, "cf::map::wrap";
		2396	delete $self->{deny_reset};
		2397	$self->{deny_save} = 1;
		2398	$self->reset_timeout (1);
		2399	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		2400
1298	cf::sync_job {	2401	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};	2402	}
1302		2403
1303	warn "end emergency map save\n";	2404	$self->reset; # polite request, might not happen
		2405	}
		2406
		2407	=item $maps = cf::map::tmp_maps
		2408
		2409	Returns an arrayref with all map paths of currently instantiated and saved
		2410	maps. May block.
		2411
		2412	=cut
		2413
		2414	sub tmp_maps() {
		2415	[
		2416	map {
		2417	utf8::decode $_;
		2418	/\.map$/
		2419	? normalise $_
		2420	: ()
		2421	} @{ aio_readdir $TMPDIR or [] }
		2422	]
		2423	}
		2424
		2425	=item $maps = cf::map::random_maps
		2426
		2427	Returns an arrayref with all map paths of currently instantiated and saved
		2428	random maps. May block.
		2429
		2430	=cut
		2431
		2432	sub random_maps() {
		2433	[
		2434	map {
		2435	utf8::decode $_;
		2436	/\.map$/
		2437	? normalise "?random/$_"
		2438	: ()
		2439	} @{ aio_readdir $RANDOMDIR or [] }
		2440	]
		2441	}
		2442
		2443	=item cf::map::unique_maps
		2444
		2445	Returns an arrayref of paths of all shared maps that have
		2446	instantiated unique items. May block.
		2447
		2448	=cut
		2449
		2450	sub unique_maps() {
		2451	[
		2452	map {
		2453	utf8::decode $_;
		2454	s/\.map$//; # TODO future compatibility hack
		2455	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2456	? ()
		2457	: normalise $_
		2458	} @{ aio_readdir $UNIQUEDIR or [] }
		2459	]
		2460	}
		2461
		2462	=item cf::map::static_maps
		2463
		2464	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2465	file in the shared directory excluding F</styles> and F</editor>). May
		2466	block.
		2467
		2468	=cut
		2469
		2470	sub static_maps() {
		2471	my @dirs = "";
		2472	my @maps;
		2473
		2474	while (@dirs) {
		2475	my $dir = shift @dirs;
		2476
		2477	next if $dir eq "/styles" || $dir eq "/editor";
		2478
		2479	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2480	or return;
		2481
		2482	for (@$files) {
		2483	s/\.map$// or next;
		2484	utf8::decode $_;
		2485	push @maps, "$dir/$_";
		2486	}
		2487
		2488	push @dirs, map "$dir/$_", @$dirs;
		2489	}
		2490
		2491	\@maps
		2492	}
		2493
		2494	=back
		2495
		2496	=head3 cf::object
		2497
		2498	=cut
		2499
		2500	package cf::object;
		2501
		2502	=over 4
		2503
		2504	=item $ob->inv_recursive
		2505
		2506	Returns the inventory of the object I<and> their inventories, recursively,
		2507	but I<not> the object itself.
		2508
		2509	=cut
		2510
		2511	sub inv_recursive_;
		2512	sub inv_recursive_ {
		2513	map { $_, inv_recursive_ $_->inv } @_
		2514	}
		2515
		2516	sub inv_recursive {
		2517	inv_recursive_ inv $_[0]
		2518	}
		2519
		2520	=item $ref = $ob->ref
		2521
		2522	Creates and returns a persistent reference to an object that can be stored as a string.
		2523
		2524	=item $ob = cf::object::deref ($refstring)
		2525
		2526	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2527	even if the object actually exists. May block.
		2528
		2529	=cut
		2530
		2531	sub deref {
		2532	my ($ref) = @_;
		2533
		2534	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2535	my ($uuid, $name) = ($1, $2);
		2536	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2537	or return;
		2538	$pl->ob->uuid eq $uuid
		2539	or return;
		2540
		2541	$pl->ob
		2542	} else {
		2543	warn "$ref: cannot resolve object reference\n";
		2544	undef
		2545	}
1304	}	2546	}
1305		2547
1306	package cf;	2548	package cf;
1307		2549
1308	=back	2550	=back
1309
1310		2551
1311	=head3 cf::object::player	2552	=head3 cf::object::player
1312		2553
1313	=over 4	2554	=over 4
1314		2555
…		…
1317	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2558	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1318	can be C<undef>. Does the right thing when the player is currently in a	2559	can be C<undef>. Does the right thing when the player is currently in a
1319	dialogue with the given NPC character.	2560	dialogue with the given NPC character.
1320		2561
1321	=cut	2562	=cut
		2563
		2564	our $SAY_CHANNEL = {
		2565	id => "say",
		2566	title => "Map",
		2567	reply => "say ",
		2568	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2569	};
		2570
		2571	our $CHAT_CHANNEL = {
		2572	id => "chat",
		2573	title => "Chat",
		2574	reply => "chat ",
		2575	tooltip => "Player chat and shouts, global to the server.",
		2576	};
1322		2577
1323	# rough implementation of a future "reply" method that works	2578	# rough implementation of a future "reply" method that works
1324	# with dialog boxes.	2579	# with dialog boxes.
1325	#TODO: the first argument must go, split into a $npc->reply_to ( method	2580	#TODO: the first argument must go, split into a $npc->reply_to ( method
1326	sub cf::object::player::reply($$$;$) {	2581	sub cf::object::player::reply($$$;$) {
…		…
1328		2583
1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2584	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1330		2585
1331	if ($self->{record_replies}) {	2586	if ($self->{record_replies}) {
1332	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2587	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2588
1333	} else {	2589	} else {
		2590	my $pl = $self->contr;
		2591
		2592	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2593	my $dialog = $pl->{npc_dialog};
		2594	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2595
		2596	} else {
1334	$msg = $npc->name . " says: $msg" if $npc;	2597	$msg = $npc->name . " says: $msg" if $npc;
1335	$self->message ($msg, $flags);	2598	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2599	}
1336	}	2600	}
		2601	}
		2602
		2603	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2604
		2605	=cut
		2606
		2607	sub cf::object::send_msg {
		2608	my $pl = shift->contr
		2609	or return;
		2610	$pl->send_msg (@_);
1337	}	2611	}
1338		2612
1339	=item $player_object->may ("access")	2613	=item $player_object->may ("access")
1340		2614
1341	Returns wether the given player is authorized to access resource "access"	2615	Returns wether the given player is authorized to access resource "access"
…		…
1350	(ref $cf::CFG{"may_$access"}	2624	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2625	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	2626	: $cf::CFG{"may_$access"})
1353	}	2627	}
1354		2628
		2629	=item $player_object->enter_link
		2630
		2631	Freezes the player and moves him/her to a special map (C<{link}>).
		2632
		2633	The player should be reasonably safe there for short amounts of time (e.g.
		2634	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2635	though, as the player cannot control the character while it is on the link
		2636	map.
		2637
		2638	Will never block.
		2639
		2640	=item $player_object->leave_link ($map, $x, $y)
		2641
		2642	Moves the player out of the special C<{link}> map onto the specified
		2643	map. If the map is not valid (or omitted), the player will be moved back
		2644	to the location he/she was before the call to C<enter_link>, or, if that
		2645	fails, to the emergency map position.
		2646
		2647	Might block.
		2648
		2649	=cut
		2650
		2651	sub link_map {
		2652	unless ($LINK_MAP) {
		2653	$LINK_MAP = cf::map::find "{link}"
		2654	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2655	$LINK_MAP->load;
		2656	}
		2657
		2658	$LINK_MAP
		2659	}
		2660
1355	sub cf::object::player::enter_link {	2661	sub cf::object::player::enter_link {
1356	my ($self) = @_;	2662	my ($self) = @_;
1357		2663
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$self->deactivate_recursive;	2664	$self->deactivate_recursive;
		2665
		2666	++$self->{_link_recursion};
		2667
		2668	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2669
		2670	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2671	if $self->map && $self->map->{path} ne "{link}";
		2672
		2673	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1365	}	2674	}
1366		2675
1367	sub cf::object::player::leave_link {	2676	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	2677	my ($self, $map, $x, $y) = @_;
1369		2678
		2679	return unless $self->contr->active;
		2680
1370	my $link_pos = delete $self->{_link_pos};	2681	my $link_pos = delete $self->{_link_pos};
1371		2682
1372	unless ($map) {	2683	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	2684	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	2685	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	2686	$map = cf::map::find $map;
1378		2687
1379	unless ($map) {	2688	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	2689	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	2690	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	2691	or die "FATAL: cannot load emergency map\n";
1383	}	2692	}
1384	}	2693	}
1385		2694
1386	($x, $y) = (-1, -1)	2695	($x, $y) = (-1, -1)
1387	unless (defined $x) && (defined $y);	2696	unless (defined $x) && (defined $y);
1388		2697
1389	# use -1 or undef as default coordinates, not 0, 0	2698	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	2699	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	2700	if $x <= 0 && $y <= 0;
1392		2701
1393	$map->load;	2702	$map->load;
		2703	$map->load_neighbours;
1394		2704
		2705	return unless $self->contr->active;
		2706
		2707	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2708	if ($self->enter_map ($map, $x, $y)) {
		2709	# entering was successful
		2710	delete $self->{_link_recursion};
		2711	# only activate afterwards, to support waiting in hooks
1395	$self->activate_recursive;	2712	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	2713	}
1397	}
1398		2714
1399	=item $player_object->goto_map ($map, $x, $y)	2715	}
1400		2716
1401	=cut	2717	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1402		2718
		2719	Moves the player to the given map-path and coordinates by first freezing
		2720	her, loading and preparing them map, calling the provided $check callback
		2721	that has to return the map if sucecssful, and then unfreezes the player on
		2722	the new (success) or old (failed) map position. In either case, $done will
		2723	be called at the end of this process.
		2724
		2725	Note that $check will be called with a potentially non-loaded map, so if
		2726	it needs a loaded map it has to call C<< ->load >>.
		2727
		2728	=cut
		2729
		2730	our $GOTOGEN;
		2731
1403	sub cf::object::player::goto_map {	2732	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	2733	my ($self, $path, $x, $y, $check, $done) = @_;
		2734
		2735	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2736	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2737	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2738	($path, $x, $y) = @$EMERGENCY_POSITION;
		2739	}
		2740
		2741	# do generation counting so two concurrent goto's will be executed in-order
		2742	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1405		2743
1406	$self->enter_link;	2744	$self->enter_link;
1407		2745
1408	(Coro::async {	2746	(async {
1409	$path = new cf::path $path;	2747	$Coro::current->{desc} = "player::goto $path $x $y";
1410		2748
1411	my $map = cf::map::find_map $path->as_string;	2749	# *tag paths override both path and x|y
		2750	if ($path =~ /^\*(.*)$/) {
		2751	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2752	my $ob = $obs[rand @obs];
		2753
		2754	# see if we actually can go there
		2755	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2756	$ob = $obs[rand @obs];
		2757	} else {
		2758	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2759	}
		2760	# else put us there anyways for now #d#
		2761
		2762	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2763	} else {
		2764	($path, $x, $y) = (undef, undef, undef);
		2765	}
		2766	}
		2767
		2768	my $map = eval {
		2769	my $map = defined $path ? cf::map::find $path : undef;
		2770
		2771	if ($map) {
1412	$map = $map->customise_for ($self) if $map;	2772	$map = $map->customise_for ($self);
		2773	$map = $check->($map, $x, $y, $self) if $check && $map;
		2774	} else {
		2775	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2776	}
1413		2777
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2778	$map
		2779	};
1416		2780
		2781	if ($@) {
		2782	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2783	LOG llevError | logBacktrace, Carp::longmess $@;
		2784	}
		2785
		2786	if ($gen == $self->{_goto_generation}) {
		2787	delete $self->{_goto_generation};
1417	$self->leave_link ($map, $x, $y);	2788	$self->leave_link ($map, $x, $y);
		2789	}
		2790
		2791	$done->($self) if $done;
1418	})->prio (1);	2792	})->prio (1);
1419	}	2793	}
1420		2794
1421	=item $player_object->enter_exit ($exit_object)	2795	=item $player_object->enter_exit ($exit_object)
1422		2796
…		…
1424		2798
1425	sub parse_random_map_params {	2799	sub parse_random_map_params {
1426	my ($spec) = @_;	2800	my ($spec) = @_;
1427		2801
1428	my $rmp = { # defaults	2802	my $rmp = { # defaults
1429	xsize => 10,	2803	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2804	ysize => (cf::rndm 15, 40),
		2805	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2806	#layout => string,
1431	};	2807	};
1432		2808
1433	for (split /\n/, $spec) {	2809	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2810	my ($k, $v) = split /\s+/, $_, 2;
1435		2811
…		…
1447	# that depends on the exit object	2823	# that depends on the exit object
1448		2824
1449	my $rmp = parse_random_map_params $exit->msg;	2825	my $rmp = parse_random_map_params $exit->msg;
1450		2826
1451	if ($exit->map) {	2827	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2828	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2829	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2830	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2831	$rmp->{origin_y} = $exit->y;
		2832
		2833	$exit->map->touch;
1456	}	2834	}
1457		2835
1458	$rmp->{random_seed} ||= $exit->random_seed;	2836	$rmp->{random_seed} ||= $exit->random_seed;
1459		2837
1460	my $data = cf::to_json $rmp;	2838	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1461	my $md5 = Digest::MD5::md5_hex $data;	2839	my $md5 = Digest::MD5::md5_hex $data;
		2840	my $meta = "$RANDOMDIR/$md5.meta";
1462		2841
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2842	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2843	aio_write $fh, 0, (length $data), $data, 0;
		2844	undef $fh;
		2845	aio_rename "$meta~", $meta;
1465		2846
		2847	my $slaying = "?random/$md5";
		2848
		2849	if ($exit->valid) {
1466	$exit->slaying ("?random/$md5");	2850	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2851	$exit->msg (undef);
		2852	}
1468	}	2853	}
1469	}	2854	}
1470		2855
1471	sub cf::object::player::enter_exit {	2856	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2857	my ($self, $exit) = @_;
1473		2858
1474	return unless $self->type == cf::PLAYER;	2859	return unless $self->type == cf::PLAYER;
1475		2860
1476	$self->enter_link;	2861	$self->enter_link;
1477		2862
1478	(Coro::async {	2863	(async {
		2864	$Coro::current->{desc} = "enter_exit";
		2865
1479	unless (eval {	2866	unless (eval {
		2867	$self->deactivate_recursive; # just to be sure
1480		2868
		2869	# random map handling
		2870	{
		2871	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2872
1481	prepare_random_map $exit	2873	prepare_random_map $exit
1482	if $exit->slaying eq "/!";	2874	if $exit->slaying eq "/!";
		2875	}
1483		2876
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2877	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2878	my $x = $exit->stats->hp;
		2879	my $y = $exit->stats->sp;
1486		2880
		2881	$self->goto ($map, $x, $y);
		2882
		2883	# if exit is damned, update players death & WoR home-position
		2884	$self->contr->savebed ($map, $x, $y)
		2885	if $exit->flag (cf::FLAG_DAMNED);
		2886
1487	1;	2887	1
1488	}) {	2888	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2889	$self->message ("Something went wrong deep within the deliantra server. "
1490	. "I'll try to bring you back to the map you were before. "	2890	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	2891	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2892	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2893
1494	warn "ERROR in enter_exit: $@";	2894	error "ERROR in enter_exit: $@";
1495	$self->leave_link;	2895	$self->leave_link;
1496	}	2896	}
1497	})->prio (1);	2897	})->prio (1);
1498	}	2898	}
1499		2899
…		…
1510		2910
1511	sub cf::client::send_drawinfo {	2911	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2912	my ($self, $text, $flags) = @_;
1513		2913
1514	utf8::encode $text;	2914	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2915	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2916	}
1517		2917
		2918	=item $client->send_big_packet ($pkt)
		2919
		2920	Like C<send_packet>, but tries to compress large packets, and fragments
		2921	them as required.
		2922
		2923	=cut
		2924
		2925	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2926
		2927	sub cf::client::send_big_packet {
		2928	my ($self, $pkt) = @_;
		2929
		2930	# try lzf for large packets
		2931	$pkt = "lzf " . Compress::LZF::compress $pkt
		2932	if 1024 <= length $pkt and $self->{can_lzf};
		2933
		2934	# split very large packets
		2935	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2936	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2937	$pkt = "frag";
		2938	}
		2939
		2940	$self->send_packet ($pkt);
		2941	}
		2942
		2943	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2944
		2945	Send a drawinfo or msg packet to the client, formatting the msg for the
		2946	client if neccessary. C<$type> should be a string identifying the type of
		2947	the message, with C<log> being the default. If C<$color> is negative, suppress
		2948	the message unless the client supports the msg packet.
		2949
		2950	=cut
		2951
		2952	# non-persistent channels (usually the info channel)
		2953	our %CHANNEL = (
		2954	"c/motd" => {
		2955	id => "infobox",
		2956	title => "MOTD",
		2957	reply => undef,
		2958	tooltip => "The message of the day",
		2959	},
		2960	"c/identify" => {
		2961	id => "infobox",
		2962	title => "Identify",
		2963	reply => undef,
		2964	tooltip => "Items recently identified",
		2965	},
		2966	"c/examine" => {
		2967	id => "infobox",
		2968	title => "Examine",
		2969	reply => undef,
		2970	tooltip => "Signs and other items you examined",
		2971	},
		2972	"c/shopinfo" => {
		2973	id => "infobox",
		2974	title => "Shop Info",
		2975	reply => undef,
		2976	tooltip => "What your bargaining skill tells you about the shop",
		2977	},
		2978	"c/book" => {
		2979	id => "infobox",
		2980	title => "Book",
		2981	reply => undef,
		2982	tooltip => "The contents of a note or book",
		2983	},
		2984	"c/lookat" => {
		2985	id => "infobox",
		2986	title => "Look",
		2987	reply => undef,
		2988	tooltip => "What you saw there",
		2989	},
		2990	"c/who" => {
		2991	id => "infobox",
		2992	title => "Players",
		2993	reply => undef,
		2994	tooltip => "Shows players who are currently online",
		2995	},
		2996	"c/body" => {
		2997	id => "infobox",
		2998	title => "Body Parts",
		2999	reply => undef,
		3000	tooltip => "Shows which body parts you posess and are available",
		3001	},
		3002	"c/statistics" => {
		3003	id => "infobox",
		3004	title => "Statistics",
		3005	reply => undef,
		3006	tooltip => "Shows your primary statistics",
		3007	},
		3008	"c/skills" => {
		3009	id => "infobox",
		3010	title => "Skills",
		3011	reply => undef,
		3012	tooltip => "Shows your experience per skill and item power",
		3013	},
		3014	"c/shopitems" => {
		3015	id => "infobox",
		3016	title => "Shop Items",
		3017	reply => undef,
		3018	tooltip => "Shows the items currently for sale in this shop",
		3019	},
		3020	"c/resistances" => {
		3021	id => "infobox",
		3022	title => "Resistances",
		3023	reply => undef,
		3024	tooltip => "Shows your resistances",
		3025	},
		3026	"c/pets" => {
		3027	id => "infobox",
		3028	title => "Pets",
		3029	reply => undef,
		3030	tooltip => "Shows information abotu your pets/a specific pet",
		3031	},
		3032	"c/perceiveself" => {
		3033	id => "infobox",
		3034	title => "Perceive Self",
		3035	reply => undef,
		3036	tooltip => "You gained detailed knowledge about yourself",
		3037	},
		3038	"c/uptime" => {
		3039	id => "infobox",
		3040	title => "Uptime",
		3041	reply => undef,
		3042	tooltip => "How long the server has been running since last restart",
		3043	},
		3044	"c/mapinfo" => {
		3045	id => "infobox",
		3046	title => "Map Info",
		3047	reply => undef,
		3048	tooltip => "Information related to the maps",
		3049	},
		3050	"c/party" => {
		3051	id => "party",
		3052	title => "Party",
		3053	reply => "gsay ",
		3054	tooltip => "Messages and chat related to your party",
		3055	},
		3056	"c/death" => {
		3057	id => "death",
		3058	title => "Death",
		3059	reply => undef,
		3060	tooltip => "Reason for and more info about your most recent death",
		3061	},
		3062	"c/say" => $SAY_CHANNEL,
		3063	"c/chat" => $CHAT_CHANNEL,
		3064	);
		3065
		3066	sub cf::client::send_msg {
		3067	my ($self, $channel, $msg, $color, @extra) = @_;
		3068
		3069	$msg = $self->pl->expand_cfpod ($msg)
		3070	unless $color & cf::NDI_VERBATIM;
		3071
		3072	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3073
		3074	# check predefined channels, for the benefit of C
		3075	if ($CHANNEL{$channel}) {
		3076	$channel = $CHANNEL{$channel};
		3077
		3078	$self->ext_msg (channel_info => $channel);
		3079	$channel = $channel->{id};
		3080
		3081	} elsif (ref $channel) {
		3082	# send meta info to client, if not yet sent
		3083	unless (exists $self->{channel}{$channel->{id}}) {
		3084	$self->{channel}{$channel->{id}} = $channel;
		3085	$self->ext_msg (channel_info => $channel);
		3086	}
		3087
		3088	$channel = $channel->{id};
		3089	}
		3090
		3091	return unless @extra || length $msg;
		3092
		3093	# default colour, mask it out
		3094	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3095	if $color & cf::NDI_DEF;
		3096
		3097	my $pkt = "msg "
		3098	. $self->{json_coder}->encode (
		3099	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3100	);
		3101
		3102	$self->send_big_packet ($pkt);
		3103	}
		3104
		3105	=item $client->ext_msg ($type, @msg)
		3106
		3107	Sends an ext event to the client.
		3108
		3109	=cut
		3110
		3111	sub cf::client::ext_msg($$@) {
		3112	my ($self, $type, @msg) = @_;
		3113
		3114	if ($self->extcmd == 2) {
		3115	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3116	} elsif ($self->extcmd == 1) { # TODO: remove
		3117	push @msg, msgtype => "event_$type";
		3118	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3119	}
		3120	}
		3121
		3122	=item $client->ext_reply ($msgid, @msg)
		3123
		3124	Sends an ext reply to the client.
		3125
		3126	=cut
		3127
		3128	sub cf::client::ext_reply($$@) {
		3129	my ($self, $id, @msg) = @_;
		3130
		3131	if ($self->extcmd == 2) {
		3132	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3133	} elsif ($self->extcmd == 1) {
		3134	#TODO: version 1, remove
		3135	unshift @msg, msgtype => "reply", msgid => $id;
		3136	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3137	}
		3138	}
1518		3139
1519	=item $success = $client->query ($flags, "text", \&cb)	3140	=item $success = $client->query ($flags, "text", \&cb)
1520		3141
1521	Queues a query to the client, calling the given callback with	3142	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1523	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3144	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1524		3145
1525	Queries can fail, so check the return code. Or don't, as queries will become	3146	Queries can fail, so check the return code. Or don't, as queries will
1526	reliable at some point in the future.	3147	become reliable at some point in the future.
1527		3148
1528	=cut	3149	=cut
1529		3150
1530	sub cf::client::query {	3151	sub cf::client::query {
1531	my ($self, $flags, $text, $cb) = @_;	3152	my ($self, $flags, $text, $cb) = @_;
…		…
1539	utf8::encode $text;	3160	utf8::encode $text;
1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3161	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1541		3162
1542	$self->send_packet ($self->{query_queue}[0][0])	3163	$self->send_packet ($self->{query_queue}[0][0])
1543	if @{ $self->{query_queue} } == 1;	3164	if @{ $self->{query_queue} } == 1;
		3165
		3166	1
1544	}	3167	}
1545		3168
1546	cf::client->attach (	3169	cf::client->attach (
		3170	on_connect => sub {
		3171	my ($ns) = @_;
		3172
		3173	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3174	},
1547	on_reply => sub {	3175	on_reply => sub {
1548	my ($ns, $msg) = @_;	3176	my ($ns, $msg) = @_;
1549		3177
1550	# this weird shuffling is so that direct followup queries	3178	# this weird shuffling is so that direct followup queries
1551	# get handled first	3179	# get handled first
1552	my $queue = delete $ns->{query_queue};	3180	my $queue = delete $ns->{query_queue}
		3181	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		3182
1554	(shift @$queue)->[1]->($msg);	3183	(shift @$queue)->[1]->($msg);
		3184	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		3185
1556	push @{ $ns->{query_queue} }, @$queue;	3186	push @{ $ns->{query_queue} }, @$queue;
1557		3187
1558	if (@{ $ns->{query_queue} } == @$queue) {	3188	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	3189	if (@$queue) {
…		…
1561	} else {	3191	} else {
1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3192	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1563	}	3193	}
1564	}	3194	}
1565	},	3195	},
		3196	on_exticmd => sub {
		3197	my ($ns, $buf) = @_;
		3198
		3199	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3200
		3201	if (ref $msg) {
		3202	my ($type, $reply, @payload) =
		3203	"ARRAY" eq ref $msg
		3204	? @$msg
		3205	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3206
		3207	my @reply;
		3208
		3209	if (my $cb = $EXTICMD{$type}) {
		3210	@reply = $cb->($ns, @payload);
		3211	}
		3212
		3213	$ns->ext_reply ($reply, @reply)
		3214	if $reply;
		3215
		3216	} else {
		3217	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3218	}
		3219
		3220	cf::override;
		3221	},
1566	);	3222	);
1567		3223
1568	=item $client->coro (\&cb)	3224	=item $client->async (\&cb)
1569		3225
1570	Create a new coroutine, running the specified callback. The coroutine will	3226	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	3227	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	3228	or loss of connection).
1573		3229
1574	=cut	3230	=cut
1575		3231
1576	sub cf::client::coro {	3232	sub cf::client::async {
1577	my ($self, $cb) = @_;	3233	my ($self, $cb) = @_;
1578		3234
1579	my $coro; $coro = async {	3235	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		3236
1586	$coro->on_destroy (sub {	3237	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	3238	delete $self->{_coro}{$coro+0};
1588	});	3239	});
1589		3240
…		…
1591		3242
1592	$coro	3243	$coro
1593	}	3244	}
1594		3245
1595	cf::client->attach (	3246	cf::client->attach (
1596	on_destroy => sub {	3247	on_client_destroy => sub {
1597	my ($ns) = @_;	3248	my ($ns) = @_;
1598		3249
1599	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3250	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1600	},	3251	},
1601	);	3252	);
…		…
1616	our $safe = new Safe "safe";	3267	our $safe = new Safe "safe";
1617	our $safe_hole = new Safe::Hole;	3268	our $safe_hole = new Safe::Hole;
1618		3269
1619	$SIG{FPE} = 'IGNORE';	3270	$SIG{FPE} = 'IGNORE';
1620		3271
1621	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3272	$safe->permit_only (Opcode::opset qw(
		3273	:base_core :base_mem :base_orig :base_math :base_loop
		3274	grepstart grepwhile mapstart mapwhile
		3275	sort time
		3276	));
1622		3277
1623	# here we export the classes and methods available to script code	3278	# here we export the classes and methods available to script code
1624		3279
1625	=pod	3280	=pod
1626		3281
1627	The following fucntions and emthods are available within a safe environment:	3282	The following functions and methods are available within a safe environment:
1628		3283
1629	cf::object contr pay_amount pay_player map	3284	cf::object
		3285	contr pay_amount pay_player map x y force_find force_add destroy
		3286	insert remove name archname title slaying race decrease split
		3287	value
		3288
1630	cf::object::player player	3289	cf::object::player
1631	cf::player peaceful	3290	player
1632	cf::map trigger	3291
		3292	cf::player
		3293	peaceful
		3294
		3295	cf::map
		3296	trigger
1633		3297
1634	=cut	3298	=cut
1635		3299
1636	for (	3300	for (
1637	["cf::object" => qw(contr pay_amount pay_player map)],	3301	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3302	insert remove inv nrof name archname title slaying race
		3303	decrease split destroy change_exp value msg lore send_msg)],
1638	["cf::object::player" => qw(player)],	3304	["cf::object::player" => qw(player)],
1639	["cf::player" => qw(peaceful)],	3305	["cf::player" => qw(peaceful send_msg)],
1640	["cf::map" => qw(trigger)],	3306	["cf::map" => qw(trigger)],
1641	) {	3307	) {
1642	no strict 'refs';
1643	my ($pkg, @funs) = @$_;	3308	my ($pkg, @funs) = @$_;
1644	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3309	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1645	for @funs;	3310	for @funs;
1646	}	3311	}
1647		3312
…		…
1662		3327
1663	my $qcode = $code;	3328	my $qcode = $code;
1664	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3329	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1665	$qcode =~ s/\n/\\n/g;	3330	$qcode =~ s/\n/\\n/g;
1666		3331
		3332	%vars = (_dummy => 0) unless %vars;
		3333
		3334	my @res;
1667	local $_;	3335	local $_;
1668	local @safe::cf::_safe_eval_args = values %vars;
1669		3336
1670	my $eval =	3337	my $eval =
1671	"do {\n"	3338	"do {\n"
1672	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3339	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1673	. "#line 0 \"{$qcode}\"\n"	3340	. "#line 0 \"{$qcode}\"\n"
1674	. $code	3341	. $code
1675	. "\n}"	3342	. "\n}"
1676	;	3343	;
1677		3344
		3345	if ($CFG{safe_eval}) {
1678	sub_generation_inc;	3346	sub_generation_inc;
		3347	local @safe::cf::_safe_eval_args = values %vars;
1679	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3348	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1680	sub_generation_inc;	3349	sub_generation_inc;
		3350	} else {
		3351	local @cf::_safe_eval_args = values %vars;
		3352	@res = wantarray ? eval eval : scalar eval $eval;
		3353	}
1681		3354
1682	if ($@) {	3355	if ($@) {
1683	warn "$@";	3356	warn "$@",
1684	warn "while executing safe code '$code'\n";	3357	"while executing safe code '$code'\n",
1685	warn "with arguments " . (join " ", %vars) . "\n";	3358	"with arguments " . (join " ", %vars) . "\n";
1686	}	3359	}
1687		3360
1688	wantarray ? @res : $res[0]	3361	wantarray ? @res : $res[0]
1689	}	3362	}
1690		3363
…		…
1704	=cut	3377	=cut
1705		3378
1706	sub register_script_function {	3379	sub register_script_function {
1707	my ($fun, $cb) = @_;	3380	my ($fun, $cb) = @_;
1708		3381
1709	no strict 'refs';	3382	$fun = "safe::$fun" if $CFG{safe_eval};
1710	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3383	*$fun = $safe_hole->wrap ($cb);
1711	}	3384	}
1712		3385
1713	=back	3386	=back
1714		3387
1715	=cut	3388	=cut
1716		3389
1717	#############################################################################	3390	#############################################################################
		3391	# the server's init and main functions
1718		3392
1719	=head2 EXTENSION DATABASE SUPPORT	3393	sub load_facedata($) {
		3394	my ($path) = @_;
1720		3395
1721	Crossfire maintains a very simple database for extension use. It can	3396	# HACK to clear player env face cache, we need some signal framework
1722	currently store anything that can be serialised using Storable, which	3397	# for this (global event?)
1723	excludes objects.	3398	%ext::player_env::MUSIC_FACE_CACHE = ();
1724		3399
1725	The parameter C<$family> should best start with the name of the extension	3400	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1726	using it, it should be unique.
1727		3401
1728	=over 4	3402	trace "loading facedata from $path\n";
1729		3403
1730	=item $hashref = cf::db_get $family	3404	0 < aio_load $path, my $facedata
		3405	or die "$path: $!";
1731		3406
1732	Return a hashref for use by the extension C<$family>, which can be	3407	$facedata = Coro::Storable::thaw $facedata;
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735		3408
1736	=item $value = cf::db_get $family => $key	3409	$facedata->{version} == 2
		3410	or cf::cleanup "$path: version mismatch, cannot proceed.";
1737		3411
1738	Returns a single value from the database	3412	# patch in the exptable
1739		3413	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1740	=item cf::db_put $family => $hashref	3414	$facedata->{resource}{"res/exp_table"} = {
1741		3415	type => FT_RSRC,
1742	Stores the given family hashref into the database. Updates are delayed, if	3416	data => $exp_table,
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3417	hash => (Digest::MD5::md5 $exp_table),
1744
1745	=item cf::db_put $family => $key => $value
1746
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757
1758	=cut
1759
1760	our $DB;
1761
1762	{
1763	my $path = cf::localdir . "/database.pst";
1764
1765	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };
1768	}
1769
1770	my $pid;
1771
1772	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	3418	};
		3419	cf::cede_to_tick;
1793		3420
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}	3421	{
		3422	my $faces = $facedata->{faceinfo};
1798		3423
1799	sub db_get($;$) {	3424	while (my ($face, $info) = each %$faces) {
1800	@_ >= 2	3425	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		3426
1805	sub db_put($$;$) {	3427	cf::face::set_visibility $idx, $info->{visibility};
1806	if (@_ >= 3) {	3428	cf::face::set_magicmap $idx, $info->{magicmap};
1807	$DB->{$_[0]}{$_[1]} = $_[2];	3429	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1808	} else {	3430	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813		3431
1814	cf::global->attach (	3432	cf::cede_to_tick;
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	3433	}
1819	);
1820	}
1821		3434
1822	#############################################################################	3435	while (my ($face, $info) = each %$faces) {
1823	# the server's main()	3436	next unless $info->{smooth};
1824		3437
1825	sub cfg_load {	3438	my $idx = cf::face::find $face
1826	open my $fh, "<:utf8", cf::confdir . "/config"	3439	or next;
1827	or return;
1828		3440
1829	local $/;	3441	if (my $smooth = cf::face::find $info->{smooth}) {
1830	*CFG = YAML::Syck::Load <$fh>;	3442	cf::face::set_smooth $idx, $smooth;
		3443	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3444	} else {
		3445	error "smooth face '$info->{smooth}' not found for face '$face'";
		3446	}
		3447
		3448	cf::cede_to_tick;
		3449	}
		3450	}
		3451
		3452	{
		3453	my $anims = $facedata->{animinfo};
		3454
		3455	while (my ($anim, $info) = each %$anims) {
		3456	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3457	cf::cede_to_tick;
		3458	}
		3459
		3460	cf::anim::invalidate_all; # d'oh
		3461	}
		3462
		3463	{
		3464	my $res = $facedata->{resource};
		3465
		3466	while (my ($name, $info) = each %$res) {
		3467	if (defined $info->{type}) {
		3468	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3469
		3470	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3471	cf::face::set_type $idx, $info->{type};
		3472	} else {
		3473	$RESOURCE{$name} = $info; # unused
		3474	}
		3475
		3476	cf::cede_to_tick;
		3477	}
		3478	}
		3479
		3480	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3481
		3482	1
		3483	}
		3484
		3485	register_exticmd fx_want => sub {
		3486	my ($ns, $want) = @_;
		3487
		3488	while (my ($k, $v) = each %$want) {
		3489	$ns->fx_want ($k, $v);
		3490	}
		3491	};
		3492
		3493	sub load_resource_file($) {
		3494	my $guard = lock_acquire "load_resource_file";
		3495
		3496	my $status = load_resource_file_ $_[0];
		3497	get_slot 0.1, 100;
		3498	cf::arch::commit_load;
		3499
		3500	$status
		3501	}
		3502
		3503	sub reload_regions {
		3504	# HACK to clear player env face cache, we need some signal framework
		3505	# for this (global event?)
		3506	%ext::player_env::MUSIC_FACE_CACHE = ();
		3507
		3508	load_resource_file "$MAPDIR/regions"
		3509	or die "unable to load regions file\n";
		3510
		3511	for (cf::region::list) {
		3512	$_->{match} = qr/$_->{match}/
		3513	if exists $_->{match};
		3514	}
		3515	}
		3516
		3517	sub reload_facedata {
		3518	load_facedata "$DATADIR/facedata"
		3519	or die "unable to load facedata\n";
		3520	}
		3521
		3522	sub reload_archetypes {
		3523	load_resource_file "$DATADIR/archetypes"
		3524	or die "unable to load archetypes\n";
		3525	}
		3526
		3527	sub reload_treasures {
		3528	load_resource_file "$DATADIR/treasures"
		3529	or die "unable to load treasurelists\n";
		3530	}
		3531
		3532	sub reload_sound {
		3533	trace "loading sound config from $DATADIR/sound\n";
		3534
		3535	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3536	or die "$DATADIR/sound $!";
		3537
		3538	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3539
		3540	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3541	my $sound = $soundconf->{compat}[$_]
		3542	or next;
		3543
		3544	my $face = cf::face::find "sound/$sound->[1]";
		3545	cf::sound::set $sound->[0] => $face;
		3546	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3547	}
		3548
		3549	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3550	my $face = cf::face::find "sound/$v";
		3551	cf::sound::set $k => $face;
		3552	}
		3553	}
		3554
		3555	sub reload_resources {
		3556	trace "reloading resource files...\n";
		3557
		3558	reload_exp_table;
		3559	reload_materials;
		3560	reload_facedata;
		3561	reload_sound;
		3562	reload_archetypes;
		3563	reload_regions;
		3564	reload_treasures;
		3565
		3566	trace "finished reloading resource files\n";
		3567	}
		3568
		3569	sub reload_config {
		3570	trace "reloading config file...\n";
		3571
		3572	0 < aio_load "$CONFDIR/config", my $config
		3573	or die "$CONFDIR/config: $!";
		3574
		3575	utf8::decode $config;
		3576	*CFG = yaml_load $config;
		3577
		3578	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3579
		3580	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3581	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3582
		3583	if (exists $CFG{mlockall}) {
		3584	eval {
		3585	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3586	and die "WARNING: m(un)lockall failed: $!\n";
		3587	};
		3588	warn $@ if $@;
		3589	}
		3590	}
		3591
		3592	sub pidfile() {
		3593	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3594	or die "$PIDFILE: $!";
		3595	flock $fh, &Fcntl::LOCK_EX
		3596	or die "$PIDFILE: flock: $!";
		3597	$fh
		3598	}
		3599
		3600	# make sure only one server instance is running at any one time
		3601	sub atomic {
		3602	my $fh = pidfile;
		3603
		3604	my $pid = <$fh>;
		3605	kill 9, $pid if $pid > 0;
		3606
		3607	seek $fh, 0, 0;
		3608	print $fh $$;
		3609	}
		3610
		3611	sub main_loop {
		3612	trace "EV::loop starting\n";
		3613	if (1) {
		3614	EV::loop;
		3615	}
		3616	trace "EV::loop returned\n";
		3617	goto &main_loop unless $REALLY_UNLOOP;
1831	}	3618	}
1832		3619
1833	sub main {	3620	sub main {
		3621	cf::init_globals; # initialise logging
		3622
		3623	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3624	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3625	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3626	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3627
		3628	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3629
1834	# we must not ever block the main coroutine	3630	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	3631	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3632	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	3633	(async {
1838	Event::one_event;	3634	$Coro::current->{desc} = "IDLE BUG HANDLER";
1839	})->();	3635	EV::loop EV::LOOP_ONESHOT;
		3636	})->prio (Coro::PRIO_MAX);
1840	};	3637	};
1841		3638
1842	cfg_load;	3639	evthread_start IO::AIO::poll_fileno;
1843	db_load;	3640
		3641	cf::sync_job {
		3642	cf::incloader::init ();
		3643
		3644	cf::init_anim;
		3645	cf::init_attackmess;
		3646	cf::init_dynamic;
		3647
		3648	cf::load_settings;
		3649
		3650	reload_resources;
		3651	reload_config;
		3652	db_init;
		3653
		3654	cf::init_uuid;
		3655	cf::init_signals;
		3656	cf::init_skills;
		3657
		3658	cf::init_beforeplay;
		3659
		3660	atomic;
		3661
1844	load_extensions;	3662	load_extensions;
1845	Event::loop;	3663
		3664	utime time, time, $RUNTIMEFILE;
		3665
		3666	# no (long-running) fork's whatsoever before this point(!)
		3667	use POSIX ();
		3668	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3669
		3670	cf::_post_init 0;
		3671	};
		3672
		3673	cf::object::thawer::errors_are_fatal 0;
		3674	info "parse errors in files are no longer fatal from this point on.\n";
		3675
		3676	my $free_main; $free_main = EV::idle sub {
		3677	undef $free_main;
		3678	undef &main; # free gobs of memory :)
		3679	};
		3680
		3681	goto &main_loop;
1846	}	3682	}
1847		3683
1848	#############################################################################	3684	#############################################################################
1849	# initialisation	3685	# initialisation and cleanup
1850		3686
		3687	# install some emergency cleanup handlers
		3688	BEGIN {
		3689	our %SIGWATCHER = ();
		3690	for my $signal (qw(INT HUP TERM)) {
		3691	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3692	cf::cleanup "SIG$signal";
		3693	};
		3694	}
		3695	}
		3696
		3697	sub write_runtime_sync {
		3698	my $t0 = AE::time;
		3699
		3700	# first touch the runtime file to show we are still running:
		3701	# the fsync below can take a very very long time.
		3702
		3703	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3704
		3705	my $guard = cf::lock_acquire "write_runtime";
		3706
		3707	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3708	or return;
		3709
		3710	my $value = $cf::RUNTIME + 90 + 10;
		3711	# 10 is the runtime save interval, for a monotonic clock
		3712	# 60 allows for the watchdog to kill the server.
		3713
		3714	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3715	and return;
		3716
		3717	# always fsync - this file is important
		3718	aio_fsync $fh
		3719	and return;
		3720
		3721	# touch it again to show we are up-to-date
		3722	aio_utime $fh, undef, undef;
		3723
		3724	close $fh
		3725	or return;
		3726
		3727	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3728	and return;
		3729
		3730	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3731
		3732	1
		3733	}
		3734
		3735	our $uuid_lock;
		3736	our $uuid_skip;
		3737
		3738	sub write_uuid_sync($) {
		3739	$uuid_skip ||= $_[0];
		3740
		3741	return if $uuid_lock;
		3742	local $uuid_lock = 1;
		3743
		3744	my $uuid = "$LOCALDIR/uuid";
		3745
		3746	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3747	or return;
		3748
		3749	my $value = uuid_seq uuid_cur;
		3750
		3751	unless ($value) {
		3752	info "cowardly refusing to write zero uuid value!\n";
		3753	return;
		3754	}
		3755
		3756	my $value = uuid_str $value + $uuid_skip;
		3757	$uuid_skip = 0;
		3758
		3759	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3760	and return;
		3761
		3762	# always fsync - this file is important
		3763	aio_fsync $fh
		3764	and return;
		3765
		3766	close $fh
		3767	or return;
		3768
		3769	aio_rename "$uuid~", $uuid
		3770	and return;
		3771
		3772	trace "uuid file written ($value).\n";
		3773
		3774	1
		3775
		3776	}
		3777
		3778	sub write_uuid($$) {
		3779	my ($skip, $sync) = @_;
		3780
		3781	$sync ? write_uuid_sync $skip
		3782	: async { write_uuid_sync $skip };
		3783	}
		3784
		3785	sub emergency_save() {
		3786	my $freeze_guard = cf::freeze_mainloop;
		3787
		3788	info "emergency_perl_save: enter\n";
		3789
		3790	# this is a trade-off: we want to be very quick here, so
		3791	# save all maps without fsync, and later call a global sync
		3792	# (which in turn might be very very slow)
		3793	local $USE_FSYNC = 0;
		3794
		3795	cf::sync_job {
		3796	cf::write_runtime_sync; # external watchdog should not bark
		3797
		3798	# use a peculiar iteration method to avoid tripping on perl
		3799	# refcount bugs in for. also avoids problems with players
		3800	# and maps saved/destroyed asynchronously.
		3801	info "emergency_perl_save: begin player save\n";
		3802	for my $login (keys %cf::PLAYER) {
		3803	my $pl = $cf::PLAYER{$login} or next;
		3804	$pl->valid or next;
		3805	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3806	$pl->save;
		3807	}
		3808	info "emergency_perl_save: end player save\n";
		3809
		3810	cf::write_runtime_sync; # external watchdog should not bark
		3811
		3812	info "emergency_perl_save: begin map save\n";
		3813	for my $path (keys %cf::MAP) {
		3814	my $map = $cf::MAP{$path} or next;
		3815	$map->valid or next;
		3816	$map->save;
		3817	}
		3818	info "emergency_perl_save: end map save\n";
		3819
		3820	cf::write_runtime_sync; # external watchdog should not bark
		3821
		3822	info "emergency_perl_save: begin database checkpoint\n";
		3823	BDB::db_env_txn_checkpoint $DB_ENV;
		3824	info "emergency_perl_save: end database checkpoint\n";
		3825
		3826	info "emergency_perl_save: begin write uuid\n";
		3827	write_uuid_sync 1;
		3828	info "emergency_perl_save: end write uuid\n";
		3829
		3830	cf::write_runtime_sync; # external watchdog should not bark
		3831
		3832	trace "emergency_perl_save: syncing database to disk";
		3833	BDB::db_env_txn_checkpoint $DB_ENV;
		3834
		3835	info "emergency_perl_save: starting sync\n";
		3836	IO::AIO::aio_sync sub {
		3837	info "emergency_perl_save: finished sync\n";
		3838	};
		3839
		3840	cf::write_runtime_sync; # external watchdog should not bark
		3841
		3842	trace "emergency_perl_save: flushing outstanding aio requests";
		3843	while (IO::AIO::nreqs || BDB::nreqs) {
		3844	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3845	}
		3846
		3847	cf::write_runtime_sync; # external watchdog should not bark
		3848	};
		3849
		3850	info "emergency_perl_save: leave\n";
		3851	}
		3852
		3853	sub post_cleanup {
		3854	my ($make_core) = @_;
		3855
		3856	IO::AIO::flush;
		3857
		3858	error Carp::longmess "post_cleanup backtrace"
		3859	if $make_core;
		3860
		3861	my $fh = pidfile;
		3862	unlink $PIDFILE if <$fh> == $$;
		3863	}
		3864
		3865	# a safer delete_package, copied from Symbol
		3866	sub clear_package($) {
		3867	my $pkg = shift;
		3868
		3869	# expand to full symbol table name if needed
		3870	unless ($pkg =~ /^main::.*::$/) {
		3871	$pkg = "main$pkg" if $pkg =~ /^::/;
		3872	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3873	$pkg .= '::' unless $pkg =~ /::$/;
		3874	}
		3875
		3876	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3877	my $stem_symtab = *{$stem}{HASH};
		3878
		3879	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3880	or return;
		3881
		3882	# clear all symbols
		3883	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3884	for my $name (keys %$leaf_symtab) {
		3885	_gv_clear *{"$pkg$name"};
		3886	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3887	}
		3888	}
		3889
1851	sub reload() {	3890	sub do_reload_perl() {
1852	# can/must only be called in main	3891	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	3892	unless (in_main) {
1854	warn "can only reload from main coroutine\n";	3893	error "can only reload from main coroutine";
1855	return;	3894	return;
1856	}	3895	}
1857		3896
1858	warn "reloading...";	3897	return if $RELOAD++;
1859		3898
1860	local $FREEZE = 1;	3899	my $t1 = AE::time;
		3900
		3901	while ($RELOAD) {
		3902	cf::get_slot 0.1, -1, "reload_perl";
		3903	info "perl_reload: reloading...";
		3904
		3905	trace "perl_reload: entering sync_job";
		3906
		3907	cf::sync_job {
1861	cf::emergency_save;	3908	#cf::emergency_save;
1862		3909
1863	eval {	3910	trace "perl_reload: cancelling all extension coros";
1864	# if anything goes wrong in here, we should simply crash as we already saved
1865
1866	# cancel all watchers
1867	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}
1870
1871	# cancel all extension coros
1872	$_->cancel for values %EXT_CORO;	3911	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	3912	%EXT_CORO = ();
1874		3913
1875	# unload all extensions	3914	trace "perl_reload: removing commands";
1876	for (@exts) {	3915	%COMMAND = ();
1877	warn "unloading <$_>";
1878	unload_extension $_;
1879	}
1880		3916
1881	# unload all modules loaded from $LIBDIR	3917	trace "perl_reload: removing ext/exti commands";
1882	while (my ($k, $v) = each %INC) {	3918	%EXTCMD = ();
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3919	%EXTICMD = ();
1884		3920
1885	warn "removing <$k>";	3921	trace "perl_reload: unloading/nuking all extensions";
1886	delete $INC{$k};	3922	for my $pkg (@EXTS) {
		3923	trace "... unloading $pkg";
1887		3924
1888	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;
1890
1891	if (my $cb = $k->can ("unload_module")) {	3925	if (my $cb = $pkg->can ("unload")) {
		3926	eval {
1892	$cb->();	3927	$cb->($pkg);
		3928	1
		3929	} or error "$pkg unloaded, but with errors: $@";
		3930	}
		3931
		3932	trace "... clearing $pkg";
		3933	clear_package $pkg;
1893	}	3934	}
1894		3935
1895	Symbol::delete_package $k;	3936	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3937	while (my ($k, $v) = each %INC) {
		3938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3939
		3940	trace "... unloading $k";
		3941	delete $INC{$k};
		3942
		3943	$k =~ s/\.pm$//;
		3944	$k =~ s/\//::/g;
		3945
		3946	if (my $cb = $k->can ("unload_module")) {
		3947	$cb->();
		3948	}
		3949
		3950	clear_package $k;
1896	}	3951	}
1897		3952
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	3953	trace "perl_reload: getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	3954	clear_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		3956
1906	# remove register_script_function callbacks	3957	trace "perl_reload: unloading cf.pm \"a bit\"";
1907	# TODO
1908
1909	# unload cf.pm "a bit"
1910	delete $INC{"cf.pm"};	3958	delete $INC{"cf.pm"};
		3959	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1911		3960
1912	# don't, removes xs symbols, too,	3961	# don't, removes xs symbols, too,
1913	# and global variables created in xs	3962	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	3963	#clear_package __PACKAGE__;
1915		3964
1916	# reload cf.pm	3965	info "perl_reload: unload completed, starting to reload now";
1917	warn "reloading cf.pm";	3966
		3967	trace "perl_reload: reloading cf.pm";
1918	require cf;	3968	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3969	cf::_connect_to_perl_1;
1920		3970
1921	# load config and database again	3971	trace "perl_reload: loading config and database again";
1922	cf::cfg_load;	3972	cf::reload_config;
1923	cf::db_load;
1924		3973
1925	# load extensions	3974	trace "perl_reload: loading extensions";
1926	warn "load extensions";
1927	cf::load_extensions;	3975	cf::load_extensions;
1928		3976
1929	# reattach attachments to objects	3977	if ($REATTACH_ON_RELOAD) {
1930	warn "reattach";	3978	trace "perl_reload: reattaching attachments to objects/players";
1931	_global_reattach;	3979	_global_reattach; # objects, sockets
		3980	trace "perl_reload: reattaching attachments to maps";
		3981	reattach $_ for values %MAP;
		3982	trace "perl_reload: reattaching attachments to players";
		3983	reattach $_ for values %PLAYER;
		3984	}
		3985
		3986	cf::_post_init 1;
		3987
		3988	trace "perl_reload: leaving sync_job";
		3989
		3990	1
		3991	} or do {
		3992	error $@;
		3993	cf::cleanup "perl_reload: error, exiting.";
		3994	};
		3995
		3996	--$RELOAD;
		3997	}
		3998
		3999	$t1 = AE::time - $t1;
		4000	info "perl_reload: completed in ${t1}s\n";
		4001	};
		4002
		4003	our $RELOAD_WATCHER; # used only during reload
		4004
		4005	sub reload_perl() {
		4006	# doing reload synchronously and two reloads happen back-to-back,
		4007	# coro crashes during coro_state_free->destroy here.
		4008
		4009	$RELOAD_WATCHER ||= cf::async {
		4010	Coro::AIO::aio_wait cache_extensions;
		4011
		4012	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4013	do_reload_perl;
		4014	undef $RELOAD_WATCHER;
		4015	};
1932	};	4016	};
1933
1934	if ($@) {
1935	warn $@;
1936	warn "error while reloading, exiting.";
1937	exit 1;
1938	}
1939
1940	warn "reloaded successfully";
1941	};
1942
1943	#############################################################################
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	4017	}
1985
1986	register "<global>", __PACKAGE__;
1987		4018
1988	register_command "reload" => sub {	4019	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	4020	my ($who, $arg) = @_;
1990		4021
1991	if ($who->flag (FLAG_WIZ)) {	4022	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	4023	$who->message ("reloading server.");
		4024	async {
		4025	$Coro::current->{desc} = "perl_reload";
		4026	reload_perl;
		4027	};
1995	}	4028	}
1996	};	4029	};
1997		4030
1998	unshift @INC, $LIBDIR;	4031	#############################################################################
1999		4032
2000	$TICK_WATCHER = Event->timer (	4033	my $bug_warning = 0;
2001	reentrant => 0,	4034
2002	prio => 0,	4035	our @WAIT_FOR_TICK;
2003	at => $NEXT_TICK || $TICK,	4036	our @WAIT_FOR_TICK_BEGIN;
2004	data => WF_AUTOCANCEL,	4037
2005	cb => sub {	4038	sub wait_for_tick() {
2006	unless ($FREEZE) {	4039	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4040
		4041	my $signal = new Coro::Signal;
		4042	push @WAIT_FOR_TICK, $signal;
		4043	$signal->wait;
		4044	}
		4045
		4046	sub wait_for_tick_begin() {
		4047	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4048
		4049	my $signal = new Coro::Signal;
		4050	push @WAIT_FOR_TICK_BEGIN, $signal;
		4051	$signal->wait;
		4052	}
		4053
		4054	sub tick {
		4055	if ($Coro::current != $Coro::main) {
		4056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4057	unless ++$bug_warning > 10;
		4058	return;
		4059	}
		4060
2007	cf::server_tick; # one server iteration	4061	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;
2009	}
2010		4062
2011	$NEXT_TICK += $TICK;	4063	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2012		4064
2013	# if we are delayed by four ticks or more, skip them all	4065	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4066	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2015		4067	Coro::async_pool {
2016	$TICK_WATCHER->at ($NEXT_TICK);	4068	$Coro::current->{desc} = "runtime saver";
2017	$TICK_WATCHER->start;
2018	},
2019	);
2020
2021	IO::AIO::max_poll_time $TICK * 0.2;
2022
2023	Event->io (
2024	fd => IO::AIO::poll_fileno,
2025	poll => 'r',
2026	prio => 5,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,
2033	after => 0,
2034	interval => 10,
2035	cb => sub {
2036	(Coro::unblock_sub {
2037	write_runtime	4069	write_runtime_sync
2038	or warn "ERROR: unable to write runtime file: $!";	4070	or error "ERROR: unable to write runtime file: $!";
2039	})->();	4071	};
2040	},	4072	}
2041	);	4073
		4074	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4075	$sig->send;
		4076	}
		4077	while (my $sig = shift @WAIT_FOR_TICK) {
		4078	$sig->send;
		4079	}
		4080
		4081	$LOAD = ($NOW - $TICK_START) / $TICK;
		4082	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4083
		4084	if (0) {
		4085	if ($NEXT_TICK) {
		4086	my $jitter = $TICK_START - $NEXT_TICK;
		4087	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4088	debug "jitter $JITTER\n";#d#
		4089	}
		4090	}
		4091	}
		4092
		4093	{
		4094	# configure BDB
		4095
		4096	BDB::min_parallel 16;
		4097	BDB::max_poll_reqs $TICK * 0.1;
		4098	$AnyEvent::BDB::WATCHER->priority (1);
		4099
		4100	unless ($DB_ENV) {
		4101	$DB_ENV = BDB::db_env_create;
		4102	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4103	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4104	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4105	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4106	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4107
		4108	cf::sync_job {
		4109	eval {
		4110	BDB::db_env_open
		4111	$DB_ENV,
		4112	$BDBDIR,
		4113	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4114	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4115	0666;
		4116
		4117	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4118	};
		4119
		4120	cf::cleanup "db_env_open(db): $@" if $@;
		4121	};
		4122	}
		4123
		4124	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4125	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4126	};
		4127	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4128	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4129	};
		4130	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4131	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4132	};
		4133	}
		4134
		4135	{
		4136	# configure IO::AIO
		4137
		4138	IO::AIO::min_parallel 8;
		4139	IO::AIO::max_poll_time $TICK * 0.1;
		4140	undef $AnyEvent::AIO::WATCHER;
		4141	}
		4142
		4143	our $_log_backtrace;
		4144	our $_log_backtrace_last;
		4145
		4146	sub _log_backtrace {
		4147	my ($msg, @addr) = @_;
		4148
		4149	$msg =~ s/\n$//;
		4150
		4151	if ($_log_backtrace_last eq $msg) {
		4152	LOG llevInfo, "[ABT] $msg\n";
		4153	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4154	# limit the # of concurrent backtraces
		4155	} elsif ($_log_backtrace < 2) {
		4156	$_log_backtrace_last = $msg;
		4157	++$_log_backtrace;
		4158	my $perl_bt = Carp::longmess $msg;
		4159	async {
		4160	$Coro::current->{desc} = "abt $msg";
		4161
		4162	my @bt = fork_call {
		4163	@addr = map { sprintf "%x", $_ } @addr;
		4164	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4165	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4166	or die "addr2line: $!";
		4167
		4168	my @funcs;
		4169	my @res = <$fh>;
		4170	chomp for @res;
		4171	while (@res) {
		4172	my ($func, $line) = splice @res, 0, 2, ();
		4173	push @funcs, "[$func] $line";
		4174	}
		4175
		4176	@funcs
		4177	};
		4178
		4179	LOG llevInfo, "[ABT] $perl_bt\n";
		4180	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4181	LOG llevInfo, "[ABT] $_\n" for @bt;
		4182	--$_log_backtrace;
		4183	};
		4184	} else {
		4185	LOG llevInfo, "[ABT] $msg\n";
		4186	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4187	}
		4188	}
		4189
		4190	# load additional modules
		4191	require "cf/$_.pm" for @EXTRA_MODULES;
		4192	cf::_connect_to_perl_2;
		4193
		4194	END { cf::emergency_save }
2042		4195
2043	1	4196	1
2044		4197

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