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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.530 by root, Wed Apr 28 21:05:33 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
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);
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 process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
112	=back	253	=back
113		254
114	=cut	255	=cut
115		256
116	BEGIN {	257	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	258	my $msg = join "", @_;
119	utf8::encode $msg;
120		259
121	$msg .= "\n"	260	$msg .= "\n"
122	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
123		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
124	LOG llevError, "cfperl: $msg";	265	LOG llevError, $msg;
125	};	266	};
126	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
127		281
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		289
135	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	291	# within the Safe compartment.
137	for my $pkg (qw(	292	for my $pkg (qw(
138	cf::global cf::attachable	293	cf::global cf::attachable
139	cf::object cf::object::player	294	cf::object cf::object::player
140	cf::client cf::player	295	cf::client cf::player
141	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
142	cf::map cf::party cf::region	298	cf::party cf::region
143	)) {	299	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	301	}
147		302
148	$Event::DIED = sub {	303	$EV::DIED = sub {
149	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
150	};	305	};
151		306
152	my %ext_pkg;	307	#############################################################################
153	my @exts;
154	my @hook;
155		308
156	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
157		310
158	=over 4	311	=over 4
159		312
160	=cut	313	=item dumpval $ref
161		314
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	315	=cut
163		316
		317	sub dumpval {
		318	eval {
		319	local $SIG{__DIE__};
		320	my $d;
		321	if (1) {
		322	$d = new Data::Dumper([$_[0]], ["*var"]);
		323	$d->Terse(1);
		324	$d->Indent(2);
		325	$d->Quotekeys(0);
		326	$d->Useqq(1);
		327	#$d->Bless(...);
		328	$d->Seen($_[1]) if @_ > 1;
		329	$d = $d->Dump();
		330	}
		331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		332	$d
		333	} || "[unable to dump $_[0]: '$@']";
		334	}
		335
164	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
165		337
166	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
167		339
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
176		341
177	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
178		343
179	=cut	344	=cut
180		345
181	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		347
186	=item my $guard = cf::guard { BLOCK }	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
187		350
188	Run the given callback when the guard object gets destroyed (useful for	351	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		352
191	You can call C<< ->cancel >> on the guard object to stop the block from	353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	354	but I<before> the server starts ticking again.
193		355
194	=cut	356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
195		358
196	sub guard(&) {	359	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		360
200	sub cf::guard::cancel {	361	sub post_init(&) {
201	${$_[0]} = sub { };	362	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	363	}
207		364
208	=item cf::lock_wait $string	365	=item cf::lock_wait $string
209		366
210	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
211		368
212	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
213		370
214	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
217	returned.	374	returned.
218		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
219	Lock names should begin with a unique identifier (for example, find_map	379	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	380	uses map_find and cf::map::load uses map_load).
221		381
222	=cut	382	=item $locked = cf::lock_active $string
223		383
224	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
225		389
226	sub lock_wait($) {	390	sub lock_wait($) {
227	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	392	}
235		393
236	sub lock_acquire($) {	394	sub lock_acquire($) {
237	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
238		397
239	# wait, to be sure we are not locked	398	sub lock_active($) {
240	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
		400	}
241		401
242	$LOCK{$key} = [];	402	sub freeze_mainloop {
		403	tick_inhibit_inc;
243		404
244	cf::guard {	405	&Guard::guard (\&tick_inhibit_dec);
245	# wake up all waiters, to be on the safe side	406	}
246	$_->ready for @{ delete $LOCK{$key} };	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
247	}	472	}
		473	};
		474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
248	}	488	}
249		489
250	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
251		491
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	492	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	493	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		494	thing you are allowed to do is call C<prio> on it.
254		495
255	=cut	496	=cut
256		497
257	sub async(&) {	498	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		499
266	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
267		501
268	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
271		506
272	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
275	fast or be very important.	510	fast or be very important.
…		…
278		513
279	sub sync_job(&) {	514	sub sync_job(&) {
280	my ($job) = @_;	515	my ($job) = @_;
281		516
282	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
283	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
285		522
286	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
287	# (but this is cancel-safe)	524
288	local $FREEZE = 1;	525	my $freeze_guard = freeze_mainloop;
289		526
290	my $busy = 1;	527	my $busy = 1;
291	my @res;	528	my @res;
292		529
293	(Coro::async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	532	@res = eval { $job->() };
295	warn $@ if $@;	533	warn $@ if $@;
296	undef $busy;	534	undef $busy;
297	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
298		536
299	while ($busy) {	537	while ($busy) {
		538	if (Coro::nready) {
300	Coro::cede_notself;	539	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
302	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
303		548
304	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
305	} else {	550	} else {
306	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
307		552
308	$job->()	553	$job->()
309	}	554	}
310	}	555	}
311		556
312	=item $coro = cf::coro { BLOCK }	557	=item $coro = cf::async_ext { BLOCK }
313		558
314	Creates and returns a new coro. This coro is automcatially being canceled	559	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	560	extension calling this is being unloaded.
316		561
317	=cut	562	=cut
318		563
319	sub coro(&) {	564	sub async_ext(&) {
320	my $cb = shift;	565	my $cb = shift;
321		566
322	my $coro = &cf::async ($cb);	567	my $coro = &Coro::async ($cb);
323		568
324	$coro->on_destroy (sub {	569	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	570	delete $EXT_CORO{$coro+0};
326	});	571	});
327	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
328		573
329	$coro	574	$coro
330	}	575	}
331		576
332	sub write_runtime {	577	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		578
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
336	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
337		583
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		585
342	aio_fsync $fh	586	sub fork_call(&@) {
343	and return;	587	my ($cb, @args) = @_;
344		588
345	close $fh	589	# we seemingly have to make a local copy of the whole thing,
346	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
347		592
348	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
349	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
350		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
351	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	775	}
353		776
354	=back	777	=back
355		778
356	=cut	779	=cut
357		780
358	#############################################################################	781	#############################################################################
359		782
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477
478	#############################################################################
479
480	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
481		784
482	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
483	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
485		788
486	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	791	Deliantra).
489		792
490	=over 4	793	=over 4
491		794
492	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
493		796
…		…
537	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
538		841
539	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
540	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
541		844
542	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
543	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
544		847
545	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
546		849
547	=over 4	850	=over 4
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	911	our @CB_MAP = ();
609		912
610	my %attachment;	913	my %attachment;
611		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
612	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
614		923
615	use sort 'stable';	924	use sort 'stable';
616		925
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
651		960
652	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		965
657	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	967	my $pkg = shift @arg;
659		968
660	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
690	}	999	}
691		1000
692	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
693	} else {	1002	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	1004	}
696		1005
697	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
698	}	1007	}
699		1008
…		…
701	if (ref $_[0]) {	1010	if (ref $_[0]) {
702	_object_attach @_;	1011	_object_attach @_;
703	} else {	1012	} else {
704	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
705	}	1014	}
		1015	_recalc_want;
706	};	1016	};
707		1017
708	# all those should be optimised	1018	# all those should be optimised
709	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
714	reattach ($obj);	1024	reattach ($obj);
715	} else {	1025	} else {
716	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
717	}	1027	}
		1028	_recalc_want;
718	};	1029	};
719		1030
720	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
722		1033
…		…
737	";	1048	";
738	die if $@;	1049	die if $@;
739	}	1050	}
740		1051
741	our $override;	1052	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		1054
744	sub override {	1055	sub override {
745	$override = 1;	1056	$override = 1;
746	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
747	}	1058	}
748		1059
749	sub do_invoke {	1060	sub do_invoke {
750	my $event = shift;	1061	my $event = shift;
751	my $callbacks = shift;	1062	my $callbacks = shift;
752		1063
753	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
754		1065
755	local $override;	1066	local $override;
756		1067
757	for (@$callbacks) {	1068	for (@$callbacks) {
758	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
767	}	1078	}
768		1079
769	0	1080	0
770	}	1081	}
771		1082
772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
773		1084
774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
775		1086
776	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
777		1088
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
779	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		1092
782	=back	1093	=back
783		1094
784	=cut	1095	=cut
785		1096
786	#############################################################################	1097	#############################################################################
787	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
788		1141
789	sub reattach {	1142	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1144	my ($obj) = @_;
		1145
		1146	# no longer needed after getting rid of delete_package?
		1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1148
793	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
794		1150
795	@$registry = ();	1151	@$registry = ();
796		1152
…		…
811	cf::attachable->attach (	1167	cf::attachable->attach (
812	prio => -1000000,	1168	prio => -1000000,
813	on_instantiate => sub {	1169	on_instantiate => sub {
814	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
815		1171
816	$data = from_json $data;	1172	$data = decode_json $data;
817		1173
818	for (@$data) {	1174	for (@$data) {
819	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
820		1176
821	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
837	sub object_freezer_save {	1193	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
839		1195
840	sync_job {	1196	sync_job {
841	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
844		1202
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	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;
848	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
849	close $fh;	1210	aio_close $fh;
850		1211
851	if (@$objs) {	1212	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	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;
856	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
857	close $fh;	1221	aio_close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
859	}	1223	}
860	} else {	1224	} else {
861	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
862	}	1226	}
863		1227
864	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
865	} else {	1232	} else {
866	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
867	}	1234	}
868	} else {	1235	} else {
869	aio_unlink $filename;	1236	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
871	}	1238	}
872	}	1239	};
873	}	1240	}
874		1241
875	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
877		1244
…		…
889	or return;	1256	or return;
890		1257
891	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
893	or return;	1260	or return;
		1261
894	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
895	}	1264	}
896		1265
		1266	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
899	return ($data, $av);	1271	($data, $av)
900	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
901		1279
902	#############################################################################	1280	#############################################################################
903	# command handling &c	1281	# command handling &c
904		1282
905	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1297	}
920		1298
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1300
923	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
924		1306
925	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
926	called.	1308	called.
927		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
928	=cut	1321	=cut
929		1322
930	sub register_extcmd {	1323	sub register_extcmd {
931	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
932		1325
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1326	$EXTCMD{$name} = $cb;
937	}	1327	}
		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
938		1336
939	cf::player->attach (	1337	cf::player->attach (
940	on_command => sub {	1338	on_unknown_command => sub {
941	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
942		1340
943	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
944	or return;	1342	or return;
945		1343
…		…
950	cf::override;	1348	cf::override;
951	},	1349	},
952	on_extcmd => sub {	1350	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
954		1352
955	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1354
957	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
963	} else {	1370	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1372	}
966		1373
967	cf::override;	1374	cf::override;
968	},	1375	},
969	);	1376	);
970		1377
971	sub register {	1378	# "readahead" all extensions
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1379	sub cache_extensions {
978	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
979		1381
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
981	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
982	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985
986	warn "loading '$path' into '$pkg'\n";
987
988	open my $fh, "<:utf8", $path
989	or die "$path: $!";
990
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }
1020
1021	# remove commands
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}	1385	}
1030	}	1386	};
1031		1387
1032	# remove extcmds	1388	$grp
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	1389	}
1046		1390
1047	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
1048	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	1396	next unless -r $path;
1050	eval {	1397
1051	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
1052	1	1461	}
1053	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
1054	}	1472	};
1055	}	1473	}
1056		1474
1057	#############################################################################	1475	#############################################################################
1058	# load/save/clean perl data associated with a map
1059		1476
1060	*cf::mapsupport::on_clean = sub {	1477	=back
		1478
		1479	=head2 CORE EXTENSIONS
		1480
		1481	Functions and methods that extend core deliantra objects.
		1482
		1483	=cut
		1484
		1485	package cf::player;
		1486
		1487	use Coro::AIO;
		1488
		1489	=head3 cf::player
		1490
		1491	=over 4
		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
		1507	=item cf::player::find $login
		1508
		1509	Returns the given player object, loading it if necessary (might block).
		1510
		1511	=cut
		1512
		1513	sub playerdir($) {
		1514	"$PLAYERDIR/"
		1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1516	}
		1517
		1518	sub path($) {
		1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1520
		1521	(playerdir $login) . "/playerdata"
		1522	}
		1523
		1524	sub find_active($) {
		1525	$cf::PLAYER{$_[0]}
		1526	and $cf::PLAYER{$_[0]}->active
		1527	and $cf::PLAYER{$_[0]}
		1528	}
		1529
		1530	sub exists($) {
1061	my ($map) = @_;	1531	my ($login) = @_;
1062		1532
1063	my $path = $map->tmpname;	1533	$cf::PLAYER{$login}
1064	defined $path or return;	1534	or !aio_stat path $login
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}	1535	}
1077		1536
1078	# TODO: compatibility cruft, remove when no longer needed	1537	sub find($) {
		1538	return $cf::PLAYER{$_[0]} || do {
		1539	my $login = $_[0];
		1540
		1541	my $guard = cf::lock_acquire "user_find:$login";
		1542
		1543	$cf::PLAYER{$_[0]} || do {
		1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
		1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
		1559	$cf::PLAYER{$login} = $pl
		1560	}
		1561	}
		1562	}
		1563
1079	cf::player->attach (	1564	cf::player->attach (
1080	on_load => sub {	1565	on_load => sub {
1081	my ($pl, $path) = @_;	1566	my ($pl, $path) = @_;
1082		1567
1083	for my $o (all_objects $pl->ob) {	1568	# restore slots saved in save, below
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1569	my $slots = delete $pl->{_slots};
1085	$o->set_ob_key_value ("_perl_data");
1086		1570
1087	%$o = %{ Storable::thaw pack "H*", $value };	1571	$pl->ob->current_weapon ($slots->[0]);
1088	}	1572	$pl->combat_ob ($slots->[1]);
1089	}	1573	$pl->ranged_ob ($slots->[2]);
1090	},	1574	},
1091	);	1575	);
1092		1576
1093	#############################################################################	1577	sub save($) {
		1578	my ($pl) = @_;
1094		1579
1095	=head2 CORE EXTENSIONS	1580	return if $pl->{deny_save};
1096		1581
1097	Functions and methods that extend core crossfire objects.	1582	my $path = path $pl;
		1583	my $guard = cf::lock_acquire "user_save:$path";
1098		1584
1099	=head3 cf::player	1585	return if $pl->{deny_save};
		1586
		1587	aio_mkdir playerdir $pl, 0770;
		1588	$pl->{last_save} = $cf::RUNTIME;
		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
		1595	$pl->save_pl ($path);
		1596	cf::cede_to_tick;
		1597	}
		1598
		1599	sub new($) {
		1600	my ($login) = @_;
		1601
		1602	my $self = create;
		1603
		1604	$self->ob->name ($login);
		1605	$self->{deny_save} = 1;
		1606
		1607	$cf::PLAYER{$login} = $self;
		1608
		1609	$self
		1610	}
		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
		1622	=item $pl->quit_character
		1623
		1624	Nukes the player without looking back. If logged in, the connection will
		1625	be destroyed. May block for a long time.
		1626
		1627	=cut
		1628
		1629	sub quit_character {
		1630	my ($pl) = @_;
		1631
		1632	my $name = $pl->ob->name;
		1633
		1634	$pl->{deny_save} = 1;
		1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1636
		1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1641	$pl->ns->destroy if $pl->ns;
		1642
		1643	my $path = playerdir $pl;
		1644	my $temp = "$path~$cf::RUNTIME~deleting~";
		1645	aio_rename $path, $temp;
		1646	delete $cf::PLAYER{$pl->ob->name};
		1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
		1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
		1669	}
		1670
		1671	=item cf::player::list_logins
		1672
		1673	Returns am arrayref of all valid playernames in the system, can take a
		1674	while and may block, so not sync_job-capable, ever.
		1675
		1676	=cut
		1677
		1678	sub list_logins {
		1679	my $dirs = aio_readdir $PLAYERDIR
		1680	or return [];
		1681
		1682	my @logins;
		1683
		1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
		1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1691	aio_read $fh, 0, 512, my $buf, 0 or next;
		1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
		1694
		1695	utf8::decode $login;
		1696	push @logins, $login;
		1697	}
		1698
		1699	\@logins
		1700	}
		1701
		1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
		1705
		1706	Returns an arrayref of map paths that are private for this
		1707	player. May block.
		1708
		1709	=cut
		1710
		1711	sub maps($) {
		1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
		1715
		1716	my $files = aio_readdir playerdir $pl
		1717	or return;
		1718
		1719	my @paths;
		1720
		1721	for (@$files) {
		1722	utf8::decode $_;
		1723	next if /\.(?:pl|pst)$/;
		1724	next unless /^$PATH_SEP/o;
		1725
		1726	push @paths, cf::map::normalise "~$pl/$_";
		1727	}
		1728
		1729	\@paths
		1730	}
		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
		1736	=item $player->ext_reply ($msgid, @msg)
		1737
		1738	Sends an ext reply to the player.
		1739
		1740	=cut
		1741
		1742	sub ext_reply($$@) {
		1743	my ($self, $id, @msg) = @_;
		1744
		1745	$self->ns->ext_reply ($id, @msg)
		1746	}
		1747
		1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
1100		1761
1101	=over 4	1762	=over 4
1102		1763
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut	1764	=cut
1108		1765
1109	sub cf::player::exists($) {	1766	package cf::region;
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113		1767
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1768	=item cf::region::find_by_path $path
1115		1769
1116	Sends an ext reply to the player.	1770	Tries to decuce the likely region for a map knowing only its path.
1117		1771
1118	=cut	1772	=cut
1119		1773
1120	sub cf::player::ext_reply($$$%) {	1774	sub find_by_path($) {
1121	my ($self, $id, %msg) = @_;	1775	my ($path) = @_;
1122		1776
1123	$msg{msgid} = $id;	1777	$path =~ s/^~[^\/]*//; # skip ~login
1124		1778
1125	$self->send ("ext " . to_json \%msg);	1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
1126	}	1789	}
1127		1790
1128	=back	1791	=back
1129
1130		1792
1131	=head3 cf::map	1793	=head3 cf::map
1132		1794
1133	=over 4	1795	=over 4
1134		1796
…		…
1137	package cf::map;	1799	package cf::map;
1138		1800
1139	use Fcntl;	1801	use Fcntl;
1140	use Coro::AIO;	1802	use Coro::AIO;
1141		1803
		1804	use overload
		1805	'""' => \&as_string,
		1806	fallback => 1;
		1807
1142	our $MAX_RESET = 7200;	1808	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1809	our $DEFAULT_RESET = 3000;
1144		1810
1145	sub generate_random_map {	1811	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1147		1815
1148	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1817	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1825	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1826	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1827	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1828	(cf::region::find $rmp->{region}), $rmp->{custom}
		1829	)
1162	}	1830	}
1163		1831
1164	# and all this just because we cannot iterate over	1832	=item cf::map->register ($regex, $prio)
1165	# all maps in C++...
1166	sub change_all_map_light {
1167	my ($change) = @_;
1168		1833
1169	$_->change_map_light ($change)	1834	Register a handler for the map path matching the given regex at the
1170	for grep $_->outdoor, values %cf::MAP;	1835	givne priority (higher is better, built-in handlers have priority 0, the
1171	}	1836	default).
1172		1837
1173	sub try_load_header($) {	1838	=cut
		1839
		1840	sub register {
		1841	my (undef, $regex, $prio) = @_;
		1842	my $pkg = caller;
		1843
		1844	no strict;
		1845	push @{"$pkg\::ISA"}, __PACKAGE__;
		1846
		1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1848	}
		1849
		1850	# also paths starting with '/'
		1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1852
		1853	sub thawer_merge {
		1854	my ($self, $merge) = @_;
		1855
		1856	# we have to keep some variables in memory intact
		1857	local $self->{path};
		1858	local $self->{load_path};
		1859
		1860	$self->SUPER::thawer_merge ($merge);
		1861	}
		1862
		1863	sub normalise {
1174	my ($path) = @_;	1864	my ($path, $base) = @_;
		1865
		1866	$path = "$path"; # make sure its a string
		1867
		1868	$path =~ s/\.map$//;
		1869
		1870	# map plan:
		1871	#
		1872	# /! non-realised random map exit (special hack!)
		1873	# {... are special paths that are not being touched
		1874	# ?xxx/... are special absolute paths
		1875	# ?random/... random maps
		1876	# /... normal maps
		1877	# ~user/... per-player map of a specific user
		1878
		1879	$path =~ s/$PATH_SEP/\//go;
		1880
		1881	# treat it as relative path if it starts with
		1882	# something that looks reasonable
		1883	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1884	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1885
		1886	$base =~ s{[^/]+/?$}{};
		1887	$path = "$base/$path";
		1888	}
		1889
		1890	for ($path) {
		1891	redo if s{//}{/};
		1892	redo if s{/\.?/}{/};
		1893	redo if s{/[^/]+/\.\./}{/};
		1894	}
		1895
		1896	$path
		1897	}
		1898
		1899	sub new_from_path {
		1900	my (undef, $path, $base) = @_;
		1901
		1902	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1903
		1904	$path = normalise $path, $base;
		1905
		1906	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1907	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1908	my $self = bless cf::map::new, $pkg;
		1909	$self->{path} = $path; $self->path ($path);
		1910	$self->init; # pass $1 etc.
		1911	return $self;
		1912	}
		1913	}
		1914
		1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1916	()
		1917	}
		1918
		1919	sub init {
		1920	my ($self) = @_;
		1921
		1922	$self
		1923	}
		1924
		1925	sub as_string {
		1926	my ($self) = @_;
		1927
		1928	"$self->{path}"
		1929	}
		1930
		1931	# the displayed name, this is a one way mapping
		1932	sub visible_name {
		1933	&as_string
		1934	}
		1935
		1936	# the original (read-only) location
		1937	sub load_path {
		1938	my ($self) = @_;
		1939
		1940	"$MAPDIR/$self->{path}.map"
		1941	}
		1942
		1943	# the temporary/swap location
		1944	sub save_path {
		1945	my ($self) = @_;
		1946
		1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1948	"$TMPDIR/$path.map"
		1949	}
		1950
		1951	# the unique path, undef == no special unique path
		1952	sub uniq_path {
		1953	my ($self) = @_;
		1954
		1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1956	"$UNIQUEDIR/$path"
		1957	}
		1958
		1959	sub decay_objects {
		1960	my ($self) = @_;
		1961
		1962	return if $self->{deny_reset};
		1963
		1964	$self->do_decay_objects;
		1965	}
		1966
		1967	sub unlink_save {
		1968	my ($self) = @_;
		1969
		1970	utf8::encode (my $save = $self->save_path);
		1971	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1973	}
		1974
		1975	sub load_header_from($) {
		1976	my ($self, $path) = @_;
1175		1977
1176	utf8::encode $path;	1978	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1178	or return;	1980	or return;
1179		1981
1180	my $map = cf::map::new	1982	$self->_load_header ($f)
1181	or return;	1983	or return;
1182		1984
1183	$map->load_header ($path)	1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
		1987
		1988	$self->{load_path} = $path;
		1989
		1990	1
		1991	}
		1992
		1993	sub load_header_orig {
		1994	my ($self) = @_;
		1995
		1996	$self->load_header_from ($self->load_path)
		1997	}
		1998
		1999	sub load_header_temp {
		2000	my ($self) = @_;
		2001
		2002	$self->load_header_from ($self->save_path)
		2003	}
		2004
		2005	sub prepare_temp {
		2006	my ($self) = @_;
		2007
		2008	$self->last_access ((delete $self->{last_access})
		2009	|| $cf::RUNTIME); #d#
		2010	# safety
		2011	$self->{instantiate_time} = $cf::RUNTIME
		2012	if $self->{instantiate_time} > $cf::RUNTIME;
		2013	}
		2014
		2015	sub prepare_orig {
		2016	my ($self) = @_;
		2017
		2018	$self->{load_original} = 1;
		2019	$self->{instantiate_time} = $cf::RUNTIME;
		2020	$self->last_access ($cf::RUNTIME);
		2021	$self->instantiate;
		2022	}
		2023
		2024	sub load_header {
		2025	my ($self) = @_;
		2026
		2027	if ($self->load_header_temp) {
		2028	$self->prepare_temp;
		2029	} else {
		2030	$self->load_header_orig
1184	or return;	2031	or return;
		2032	$self->prepare_orig;
		2033	}
1185		2034
1186	$map->{load_path} = $path;	2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
1187		2037
1188	$map	2038	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	2039	unless $self->default_region;
1190		2040
		2041	1
		2042	}
		2043
1191	sub find_map;	2044	sub find;
1192	sub find_map {	2045	sub find {
1193	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1194		2047
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		2049
1200	cf::lock_wait "map_find:$key";	2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1201
1202	$cf::MAP{$key} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1204		2052
1205	# do it the slow way	2053	$cf::MAP{$path} || do {
1206	my $map = try_load_header $path->save_path;	2054	my $map = new_from_path cf::map $path
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	2055	or return;
1220		2056
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		2058
1234	if ($map->should_reset) {	2059	$map->load_header
		2060	or return;
		2061
		2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2063	# doing this can freeze the server in a sync job, obviously
		2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1235	$map->reset;	2067	$map->reset;
1236	undef $guard;	2068	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	2069	}
1240		2070
1241	$cf::MAP{$key} = $map	2071	$cf::MAP{$path} = $map
1242	}	2072	}
1243	}	2073	}
		2074
		2075	sub pre_load { }
		2076	#sub post_load { } # XS
1244		2077
1245	sub load {	2078	sub load {
1246	my ($self) = @_;	2079	my ($self) = @_;
1247		2080
		2081	local $self->{deny_reset} = 1; # loading can take a long time
		2082
1248	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2086	my $guard = cf::lock_acquire "map_data:$path";
1250		2087
		2088	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2090
1253	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1254		2092
1255	$self->alloc;	2093	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2094
		2095	$self->pre_load;
		2096	cf::cede_to_tick;
		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1257	or return;	2101	or return;
1258		2102
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1260	if delete $self->{load_original};	2104	if delete $self->{load_original};
1261		2105
1262	if (my $uniq = $path->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2107	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2110	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1267	}	2114	}
1268	}	2115	}
1269		2116
		2117	$f->resolve_delayed_derefs;
		2118
		2119	cf::cede_to_tick;
1270	# now do the right thing for maps	2120	# now do the right thing for maps
1271	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2123	unless $self->difficulty;
		2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1283	$self->activate;	2131	$self->activate;
1284	}	2132	}
1285		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
1287	}	2138	}
1288		2139
1289	sub load_map_sync {	2140	$self->post_load;
		2141	}
		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
		2146	sub customise_for {
		2147	my ($self, $ob) = @_;
		2148
		2149	return find "~" . $ob->name . "/" . $self->{path}
		2150	if $self->per_player;
		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
		2155	$self
		2156	}
		2157
		2158	# find and load all maps in the 3x3 area around a map
		2159	sub load_neighbours {
		2160	my ($map) = @_;
		2161
		2162	my @neigh; # diagonal neighbours
		2163
		2164	for (0 .. 3) {
		2165	my $neigh = $map->tile_path ($_)
		2166	or next;
		2167	$neigh = find $neigh, $map
		2168	or next;
		2169	$neigh->load;
		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
		2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2175	}
		2176
		2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
		2179	my $neigh = find $path, $origin
		2180	or next;
		2181	$neigh->load;
		2182	}
		2183	}
		2184
		2185	sub find_sync {
1290	my ($path, $origin) = @_;	2186	my ($path, $origin) = @_;
1291		2187
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2188	cf::sync_job { find $path, $origin }
		2189	}
1293		2190
		2191	sub do_load_sync {
		2192	my ($map) = @_;
		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
		2197	cf::sync_job { $map->load };
		2198	}
		2199
		2200	our %MAP_PREFETCH;
		2201	our $MAP_PREFETCHER = undef;
		2202
		2203	sub find_async {
		2204	my ($path, $origin, $load) = @_;
		2205
		2206	$path = normalise $path, $origin && $origin->{path};
		2207
		2208	if (my $map = $cf::MAP{$path}) {
		2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2210	}
		2211
		2212	$MAP_PREFETCH{$path} |= $load;
		2213
		2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
		2217	while (%MAP_PREFETCH) {
		2218	while (my ($k, $v) = each %MAP_PREFETCH) {
		2219	if (my $map = find $k) {
		2220	$map->load if $v;
		2221	}
		2222
		2223	delete $MAP_PREFETCH{$k};
		2224	}
		2225	}
		2226	undef $MAP_PREFETCHER;
		2227	};
		2228	$MAP_PREFETCHER->prio (6);
		2229
		2230	()
		2231	}
		2232
		2233	# common code, used by both ->save and ->swapout
		2234	sub _save {
		2235	my ($self) = @_;
		2236
		2237	$self->{last_save} = $cf::RUNTIME;
		2238
		2239	return unless $self->dirty;
		2240
		2241	my $save = $self->save_path; utf8::encode $save;
		2242	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2243
		2244	$self->{load_path} = $save;
		2245
		2246	return if $self->{deny_save};
		2247
		2248	local $self->{last_access} = $self->last_access;#d#
		2249
1294	cf::sync_job {	2250	cf::async {
1295	my $map = cf::map::find_map $path, $origin	2251	$Coro::current->{desc} = "map player save";
1296	or return;	2252	$_->contr->save for $self->players;
1297	$map->load;	2253	};
1298	$map	2254
		2255	cf::get_slot 0.02;
		2256
		2257	if ($uniq) {
		2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2260	} else {
		2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1299	}	2262	}
1300	}	2263	}
1301		2264
1302	sub save {	2265	sub save {
1303	my ($self) = @_;	2266	my ($self) = @_;
1304		2267
1305	$self->{last_save} = $cf::RUNTIME;	2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
1306		2269
1307	return unless $self->dirty;	2270	$self->_save;
1308
1309	my $save = $self->{path}->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1311
1312	$self->{load_path} = $save;
1313
1314	return if $self->{deny_save};
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2271	}
1323		2272
1324	sub swap_out {	2273	sub swap_out {
1325	my ($self) = @_;	2274	my ($self) = @_;
1326		2275
1327	# save first because save cedes	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1328	$self->save;
1329		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1330	return if $self->players;	2280	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};
1333		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1334	$self->clear;	2291	$self->clear;
1335	$self->in_memory (cf::MAP_SWAPPED);
1336	}	2292	}
1337		2293
1338	sub reset_at {	2294	sub reset_at {
1339	my ($self) = @_;	2295	my ($self) = @_;
1340		2296
1341	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1344		2299
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		2302
…		…
1352	my ($self) = @_;	2307	my ($self) = @_;
1353		2308
1354	$self->reset_at <= $cf::RUNTIME	2309	$self->reset_at <= $cf::RUNTIME
1355	}	2310	}
1356		2311
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	2312	sub reset {
1379	my ($self) = @_;	2313	my ($self) = @_;
1380		2314
		2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2316
1381	return if $self->players;	2317	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2318
1384	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1385		2330
1386	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1387		2332
		2333	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2334	$_->clear_links_to ($self) for values %cf::MAP;
		2335	$self->clear;
1389		2336
1390	$self->unlink_save;	2337	$self->unlink_save;
1391	$self->destroy;	2338	$self->destroy;
1392	}	2339	}
1393		2340
1394	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1395		2342
1396	sub nuke {	2343	sub nuke {
1397	my ($self) = @_;	2344	my ($self) = @_;
1398		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
		2349	delete $cf::MAP{$self->path};
		2350
		2351	$self->unlink_save;
		2352
		2353	bless $self, "cf::map::wrap";
		2354	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2358
		2359	$cf::MAP{$self->path} = $self;
		2360	}
		2361
1402	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
1403	}	2363	}
1404		2364
1405	sub customise_for {	2365	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2366
1408	if ($map->per_player) {	2367	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
1410	}	2373	[
1411		2374	map {
1412	$map	2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
1413	}	2381	}
1414		2382
1415	sub emergency_save {	2383	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2384
1418	warn "enter emergency map save\n";	2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
1419		2387
1420	cf::sync_job {	2388	=cut
1421	warn "begin emergency map save\n";	2389
1422	$_->save for values %cf::MAP;	2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
		2399	}
		2400
		2401	=item cf::map::unique_maps
		2402
		2403	Returns an arrayref of paths of all shared maps that have
		2404	instantiated unique items. May block.
		2405
		2406	=cut
		2407
		2408	sub unique_maps() {
		2409	[
		2410	map {
		2411	utf8::decode $_;
		2412	s/\.map$//; # TODO future compatibility hack
		2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2414	? ()
		2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
		2417	]
		2418	}
		2419
		2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
1423	};	2447	}
1424		2448
1425	warn "end emergency map save\n";	2449	\@maps
		2450	}
		2451
		2452	=back
		2453
		2454	=head3 cf::object
		2455
		2456	=cut
		2457
		2458	package cf::object;
		2459
		2460	=over 4
		2461
		2462	=item $ob->inv_recursive
		2463
		2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
		2466
		2467	=cut
		2468
		2469	sub inv_recursive_;
		2470	sub inv_recursive_ {
		2471	map { $_, inv_recursive_ $_->inv } @_
		2472	}
		2473
		2474	sub inv_recursive {
		2475	inv_recursive_ inv $_[0]
		2476	}
		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
1426	}	2504	}
1427		2505
1428	package cf;	2506	package cf;
1429		2507
1430	=back	2508	=back
1431
1432		2509
1433	=head3 cf::object::player	2510	=head3 cf::object::player
1434		2511
1435	=over 4	2512	=over 4
1436		2513
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1442		2519
1443	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1444		2535
1445	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2537	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1450		2541
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2543
1453	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1455	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1458	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1459	}	2569	}
1460		2570
1461	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1462		2572
1463	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1476		2586
1477	=item $player_object->enter_link	2587	=item $player_object->enter_link
1478		2588
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2590
1481	The player should be reaosnably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
		2595
		2596	Will never block.
1483		2597
1484	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1485		2599
1486	Moves the player out of the specila link map onto the given map. If the	2600	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2601	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2602	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2603	fails, to the emergency map position.
1490		2604
1491	Might block.	2605	Might block.
1492		2606
1493	=cut	2607	=cut
		2608
		2609	sub link_map {
		2610	unless ($LINK_MAP) {
		2611	$LINK_MAP = cf::map::find "{link}"
		2612	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2613	$LINK_MAP->load;
		2614	}
		2615
		2616	$LINK_MAP
		2617	}
1494		2618
1495	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2620	my ($self) = @_;
1497		2621
1498	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1499		2623
1500	return if $self->map == $LINK_MAP;	2624	++$self->{_link_recursion};
		2625
		2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2627
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1504		2630
1505	$self->enter_map ($LINK_MAP, 20, 20);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1506	}	2632	}
1507		2633
1508	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1510		2638
1511	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1512		2640
1513	unless ($map) {	2641	unless ($map) {
1514	# restore original map position	2642	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2643	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2644	$map = cf::map::find $map;
1517		2645
1518	unless ($map) {	2646	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2647	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2648	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2649	or die "FATAL: cannot load emergency map\n";
1522	}	2650	}
1523	}	2651	}
1524		2652
1525	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1526	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1527		2655
1528	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1531		2659
1532	$map->load;	2660	$map->load;
		2661	$map->load_neighbours;
1533		2662
		2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2670	$self->activate_recursive;
1535	$self->enter_map ($map, $x, $y);
1536	}
1537
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},	2671	}
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2672
1552	# try to abort aborted map switching on player login :)	2673	}
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565		2674
1566	=item $player_object->goto_map ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1567		2676
1568	=cut	2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
1569		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
		2686	=cut
		2687
		2688	our $GOTOGEN;
		2689
1570	sub cf::object::player::goto_map {	2690	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2701
1573	$self->enter_link;	2702	$self->enter_link;
1574		2703
1575	(cf::async {	2704	(async {
1576	$path = new cf::path $path;	2705	$Coro::current->{desc} = "player::goto $path $x $y";
1577		2706
1578	my $map = cf::map::find_map $path->as_string;	2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
		2726	my $map = eval {
		2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
1580		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2732	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
1585		2735
		2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
		2742	}
		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1587	})->prio (1);	2750	})->prio (1);
1588	}	2751	}
1589		2752
1590	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1591		2754
…		…
1593		2756
1594	sub parse_random_map_params {	2757	sub parse_random_map_params {
1595	my ($spec) = @_;	2758	my ($spec) = @_;
1596		2759
1597	my $rmp = { # defaults	2760	my $rmp = { # defaults
1598	xsize => 10,	2761	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2762	ysize => (cf::rndm 15, 40),
		2763	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2764	#layout => string,
1600	};	2765	};
1601		2766
1602	for (split /\n/, $spec) {	2767	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2768	my ($k, $v) = split /\s+/, $_, 2;
1604		2769
…		…
1616	# that depends on the exit object	2781	# that depends on the exit object
1617		2782
1618	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
1619		2784
1620	if ($exit->map) {	2785	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2786	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1625	}	2792	}
1626		2793
1627	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1628		2795
1629	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1630	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
		2798	my $meta = "$RANDOMDIR/$md5.meta";
1631		2799
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
		2802	undef $fh;
		2803	aio_rename "$meta~", $meta;
1634		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1635	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1637	}	2811	}
1638	}	2812	}
1639		2813
1640	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1642		2816
1643	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1644		2818
1645	$self->enter_link;	2819	$self->enter_link;
1646		2820
1647	(cf::async {	2821	(async {
		2822	$Coro::current->{desc} = "enter_exit";
		2823
1648	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
1649	prepare_random_map $exit	2831	prepare_random_map $exit
1650	if $exit->slaying eq "/!";	2832	if $exit->slaying eq "/!";
		2833	}
1651		2834
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
1654		2838
		2839	$self->goto ($map, $x, $y);
		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1655	1;	2845	1
1656	}) {	2846	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1658	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2849	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2851
1662	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2853	$self->leave_link;
1664	}	2854	}
1665	})->prio (1);	2855	})->prio (1);
…		…
1678		2868
1679	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1681		2871
1682	utf8::encode $text;	2872	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2874	}
1685		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1686		3097
1687	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1688		3099
1689	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		3103
1693	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	3105	become reliable at some point in the future.
1695		3106
1696	=cut	3107	=cut
1697		3108
1698	sub cf::client::query {	3109	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	3118	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		3120
1710	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1712	}	3125	}
1713		3126
1714	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
1715	on_reply => sub {	3133	on_reply => sub {
1716	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1717		3135
1718	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
1719	# get handled first	3137	# get handled first
1720	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		3140
1723	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		3143
1725	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
1726		3145
1727	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	3147	if (@$queue) {
…		…
1730	} else {	3149	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	3151	}
1733	}	3152	}
1734	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
1735	);	3180	);
1736		3181
1737	=item $client->coro (\&cb)	3182	=item $client->async (\&cb)
1738		3183
1739	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	3185	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	3186	or loss of connection).
1742		3187
1743	=cut	3188	=cut
1744		3189
1745	sub cf::client::coro {	3190	sub cf::client::async {
1746	my ($self, $cb) = @_;	3191	my ($self, $cb) = @_;
1747		3192
1748	my $coro = &cf::async ($cb);	3193	my $coro = &Coro::async ($cb);
1749		3194
1750	$coro->on_destroy (sub {	3195	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	3196	delete $self->{_coro}{$coro+0};
1752	});	3197	});
1753		3198
…		…
1755		3200
1756	$coro	3201	$coro
1757	}	3202	}
1758		3203
1759	cf::client->attach (	3204	cf::client->attach (
1760	on_destroy => sub {	3205	on_client_destroy => sub {
1761	my ($ns) = @_;	3206	my ($ns) = @_;
1762		3207
1763	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1764	},	3209	},
1765	);	3210	);
…		…
1780	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
1781	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
1782		3227
1783	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
1784		3229
1785	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
1786		3235
1787	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
1788		3237
1789	=pod	3238	=pod
1790		3239
1791	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
1792		3241
1793	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
1794	cf::object::player player	3247	cf::object::player
1795	cf::player peaceful	3248	player
1796	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
1797		3255
1798	=cut	3256	=cut
1799		3257
1800	for (	3258	for (
1801	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
1802	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
1803	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
1804	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
1805	) {	3265	) {
1806	no strict 'refs';	3266	no strict 'refs';
1807	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
1808	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1826		3286
1827	my $qcode = $code;	3287	my $qcode = $code;
1828	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1829	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
1830		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
1831	local $_;	3294	local $_;
1832	local @safe::cf::_safe_eval_args = values %vars;
1833		3295
1834	my $eval =	3296	my $eval =
1835	"do {\n"	3297	"do {\n"
1836	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1837	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
1838	. $code	3300	. $code
1839	. "\n}"	3301	. "\n}"
1840	;	3302	;
1841		3303
		3304	if ($CFG{safe_eval}) {
1842	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
1843	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1844	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
1845		3313
1846	if ($@) {	3314	if ($@) {
1847	warn "$@";	3315	warn "$@";
1848	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
1849	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1868	=cut	3336	=cut
1869		3337
1870	sub register_script_function {	3338	sub register_script_function {
1871	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
1872		3340
1873	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
1874	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
1875	}	3343	}
1876		3344
1877	=back	3345	=back
1878		3346
1879	=cut	3347	=cut
1880		3348
1881	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
1882		3351
1883	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
1884		3354
1885	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
1886	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
1887	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
1888		3358
1889	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1890	using it, it should be unique.
1891		3360
1892	=over 4	3361	warn "loading facedata from $path\n";
1893		3362
1894	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
1895		3366
1896	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899		3368
1900	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		3371
1902	Returns a single value from the database	3372	# patch in the exptable
1903		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1904	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
1905		3375	type => FT_RSRC,
1906	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}
1932
1933	my $pid;
1934
1935	sub db_save() {
1936	waitpid $pid, 0 if $pid;
1937	if (0 == ($pid = fork)) {
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	3378	};
		3379	cf::cede_to_tick;
1955		3380
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
1960		3383
1961	sub db_get($;$) {	3384	while (my ($face, $info) = each %$faces) {
1962	@_ >= 2	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		3386
1967	sub db_put($$;$) {	3387	cf::face::set_visibility $idx, $info->{visibility};
1968	if (@_ >= 3) {	3388	cf::face::set_magicmap $idx, $info->{magicmap};
1969	$DB->{$_[0]}{$_[1]} = $_[2];	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1970	} else {	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		3391
1976	cf::global->attach (	3392	cf::cede_to_tick;
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	3393	}
1981	);
1982	}
1983		3394
1984	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	3396	next unless $info->{smooth};
1986		3397
1987	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info; # unused
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
		3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
		3468	load_resource_file "$MAPDIR/regions"
		3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
		3475	}
		3476
		3477	sub reload_facedata {
		3478	load_facedata "$DATADIR/facedata"
		3479	or die "unable to load facedata\n";
		3480	}
		3481
		3482	sub reload_archetypes {
		3483	load_resource_file "$DATADIR/archetypes"
		3484	or die "unable to load archetypes\n";
		3485	}
		3486
		3487	sub reload_treasures {
		3488	load_resource_file "$DATADIR/treasures"
		3489	or die "unable to load treasurelists\n";
		3490	}
		3491
		3492	sub reload_sound {
		3493	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3494	or die "$DATADIR/sound $!";
		3495
		3496	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3497
		3498	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3499	my $sound = $soundconf->{compat}[$_]
		3500	or next;
		3501
		3502	my $face = cf::face::find "sound/$sound->[1]";
		3503	cf::sound::set $sound->[0] => $face;
		3504	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3505	}
		3506
		3507	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3508	my $face = cf::face::find "sound/$v";
		3509	cf::sound::set $k => $face;
		3510	}
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_sound;
		3518	reload_archetypes;
		3519	reload_regions;
		3520	reload_treasures;
		3521
		3522	warn "finished reloading resource files\n";
		3523	}
		3524
		3525	sub reload_config {
		3526	warn "reloading config file...\n";
		3527
1988	open my $fh, "<:utf8", cf::confdir . "/config"	3528	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	3529	or return;
1990		3530
1991	local $/;	3531	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	3532	*CFG = YAML::XS::Load scalar <$fh>;
		3533
		3534	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3535
		3536	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3537	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3538
		3539	if (exists $CFG{mlockall}) {
		3540	eval {
		3541	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3542	and die "WARNING: m(un)lockall failed: $!\n";
		3543	};
		3544	warn $@ if $@;
		3545	}
		3546
		3547	warn "finished reloading resource files\n";
		3548	}
		3549
		3550	sub pidfile() {
		3551	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3552	or die "$PIDFILE: $!";
		3553	flock $fh, &Fcntl::LOCK_EX
		3554	or die "$PIDFILE: flock: $!";
		3555	$fh
		3556	}
		3557
		3558	# make sure only one server instance is running at any one time
		3559	sub atomic {
		3560	my $fh = pidfile;
		3561
		3562	my $pid = <$fh>;
		3563	kill 9, $pid if $pid > 0;
		3564
		3565	seek $fh, 0, 0;
		3566	print $fh $$;
		3567	}
		3568
		3569	sub main_loop {
		3570	warn "EV::loop starting\n";
		3571	if (1) {
		3572	EV::loop;
		3573	}
		3574	warn "EV::loop returned\n";
		3575	goto &main_loop unless $REALLY_UNLOOP;
1993	}	3576	}
1994		3577
1995	sub main {	3578	sub main {
		3579	cf::init_globals; # initialise logging
		3580
		3581	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3582	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3583	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3584	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3585
		3586	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3587
1996	# we must not ever block the main coroutine	3588	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	3589	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3590	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	3591	(async {
2000	Event::one_event;	3592	$Coro::current->{desc} = "IDLE BUG HANDLER";
2001	})->();	3593	EV::loop EV::LOOP_ONESHOT;
		3594	})->prio (Coro::PRIO_MAX);
2002	};	3595	};
2003		3596
2004	cfg_load;	3597	evthread_start IO::AIO::poll_fileno;
2005	db_load;	3598
		3599	cf::sync_job {
		3600	cf::init_experience;
		3601	cf::init_anim;
		3602	cf::init_attackmess;
		3603	cf::init_dynamic;
		3604
		3605	cf::load_settings;
		3606	cf::load_materials;
		3607
		3608	reload_resources;
		3609	reload_config;
		3610	db_init;
		3611
		3612	cf::init_uuid;
		3613	cf::init_signals;
		3614	cf::init_skills;
		3615
		3616	cf::init_beforeplay;
		3617
		3618	atomic;
		3619
2006	load_extensions;	3620	load_extensions;
2007	Event::loop;	3621
		3622	utime time, time, $RUNTIMEFILE;
		3623
		3624	# no (long-running) fork's whatsoever before this point(!)
		3625	use POSIX ();
		3626	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3627
		3628	(pop @POST_INIT)->(0) while @POST_INIT;
		3629	};
		3630
		3631	cf::object::thawer::errors_are_fatal 0;
		3632	warn "parse errors in files are no longer fatal from this point on.\n";
		3633
		3634	main_loop;
2008	}	3635	}
2009		3636
2010	#############################################################################	3637	#############################################################################
2011	# initialisation	3638	# initialisation and cleanup
2012		3639
		3640	# install some emergency cleanup handlers
		3641	BEGIN {
		3642	our %SIGWATCHER = ();
		3643	for my $signal (qw(INT HUP TERM)) {
		3644	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3645	cf::cleanup "SIG$signal";
		3646	};
		3647	}
		3648	}
		3649
		3650	sub write_runtime_sync {
		3651	my $t0 = AE::time;
		3652
		3653	# first touch the runtime file to show we are still running:
		3654	# the fsync below can take a very very long time.
		3655
		3656	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3657
		3658	my $guard = cf::lock_acquire "write_runtime";
		3659
		3660	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3661	or return;
		3662
		3663	my $value = $cf::RUNTIME + 90 + 10;
		3664	# 10 is the runtime save interval, for a monotonic clock
		3665	# 60 allows for the watchdog to kill the server.
		3666
		3667	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3668	and return;
		3669
		3670	# always fsync - this file is important
		3671	aio_fsync $fh
		3672	and return;
		3673
		3674	# touch it again to show we are up-to-date
		3675	aio_utime $fh, undef, undef;
		3676
		3677	close $fh
		3678	or return;
		3679
		3680	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3681	and return;
		3682
		3683	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3684
		3685	1
		3686	}
		3687
		3688	our $uuid_lock;
		3689	our $uuid_skip;
		3690
		3691	sub write_uuid_sync($) {
		3692	$uuid_skip ||= $_[0];
		3693
		3694	return if $uuid_lock;
		3695	local $uuid_lock = 1;
		3696
		3697	my $uuid = "$LOCALDIR/uuid";
		3698
		3699	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3700	or return;
		3701
		3702	my $value = uuid_seq uuid_cur;
		3703
		3704	unless ($value) {
		3705	warn "cowardly refusing to write zero uuid value!\n";
		3706	return;
		3707	}
		3708
		3709	my $value = uuid_str $value + $uuid_skip;
		3710	$uuid_skip = 0;
		3711
		3712	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3713	and return;
		3714
		3715	# always fsync - this file is important
		3716	aio_fsync $fh
		3717	and return;
		3718
		3719	close $fh
		3720	or return;
		3721
		3722	aio_rename "$uuid~", $uuid
		3723	and return;
		3724
		3725	warn "uuid file written ($value).\n";
		3726
		3727	1
		3728
		3729	}
		3730
		3731	sub write_uuid($$) {
		3732	my ($skip, $sync) = @_;
		3733
		3734	$sync ? write_uuid_sync $skip
		3735	: async { write_uuid_sync $skip };
		3736	}
		3737
		3738	sub emergency_save() {
		3739	my $freeze_guard = cf::freeze_mainloop;
		3740
		3741	warn "emergency_perl_save: enter\n";
		3742
		3743	cf::sync_job {
		3744	# this is a trade-off: we want to be very quick here, so
		3745	# save all maps without fsync, and later call a global sync
		3746	# (which in turn might be very very slow)
		3747	local $USE_FSYNC = 0;
		3748
		3749	# use a peculiar iteration method to avoid tripping on perl
		3750	# refcount bugs in for. also avoids problems with players
		3751	# and maps saved/destroyed asynchronously.
		3752	warn "emergency_perl_save: begin player save\n";
		3753	for my $login (keys %cf::PLAYER) {
		3754	my $pl = $cf::PLAYER{$login} or next;
		3755	$pl->valid or next;
		3756	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3757	$pl->save;
		3758	}
		3759	warn "emergency_perl_save: end player save\n";
		3760
		3761	warn "emergency_perl_save: begin map save\n";
		3762	for my $path (keys %cf::MAP) {
		3763	my $map = $cf::MAP{$path} or next;
		3764	$map->valid or next;
		3765	$map->save;
		3766	}
		3767	warn "emergency_perl_save: end map save\n";
		3768
		3769	warn "emergency_perl_save: begin database checkpoint\n";
		3770	BDB::db_env_txn_checkpoint $DB_ENV;
		3771	warn "emergency_perl_save: end database checkpoint\n";
		3772
		3773	warn "emergency_perl_save: begin write uuid\n";
		3774	write_uuid_sync 1;
		3775	warn "emergency_perl_save: end write uuid\n";
		3776	};
		3777
		3778	warn "emergency_perl_save: starting sync()\n";
		3779	IO::AIO::aio_sync sub {
		3780	warn "emergency_perl_save: finished sync()\n";
		3781	};
		3782
		3783	warn "emergency_perl_save: leave\n";
		3784	}
		3785
		3786	sub post_cleanup {
		3787	my ($make_core) = @_;
		3788
		3789	warn Carp::longmess "post_cleanup backtrace"
		3790	if $make_core;
		3791
		3792	my $fh = pidfile;
		3793	unlink $PIDFILE if <$fh> == $$;
		3794	}
		3795
		3796	# a safer delete_package, copied from Symbol
		3797	sub clear_package($) {
		3798	my $pkg = shift;
		3799
		3800	# expand to full symbol table name if needed
		3801	unless ($pkg =~ /^main::.*::$/) {
		3802	$pkg = "main$pkg" if $pkg =~ /^::/;
		3803	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3804	$pkg .= '::' unless $pkg =~ /::$/;
		3805	}
		3806
		3807	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3808	my $stem_symtab = *{$stem}{HASH};
		3809
		3810	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3811	or return;
		3812
		3813	# clear all symbols
		3814	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3815	for my $name (keys %$leaf_symtab) {
		3816	_gv_clear *{"$pkg$name"};
		3817	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3818	}
		3819	}
		3820
2013	sub reload() {	3821	sub do_reload_perl() {
2014	# can/must only be called in main	3822	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	3823	if (in_main) {
2016	warn "can only reload from main coroutine\n";	3824	warn "can only reload from main coroutine";
2017	return;	3825	return;
2018	}	3826	}
2019		3827
		3828	return if $RELOAD++;
		3829
		3830	my $t1 = AE::time;
		3831
		3832	while ($RELOAD) {
2020	warn "reloading...";	3833	warn "reloading...";
2021		3834
2022	local $FREEZE = 1;	3835	warn "entering sync_job";
		3836
		3837	cf::sync_job {
		3838	cf::write_runtime_sync; # external watchdog should not bark
2023	cf::emergency_save;	3839	cf::emergency_save;
		3840	cf::write_runtime_sync; # external watchdog should not bark
2024		3841
2025	eval {	3842	warn "syncing database to disk";
		3843	BDB::db_env_txn_checkpoint $DB_ENV;
		3844
2026	# if anything goes wrong in here, we should simply crash as we already saved	3845	# if anything goes wrong in here, we should simply crash as we already saved
2027		3846
2028	# cancel all watchers	3847	warn "flushing outstanding aio requests";
2029	for (Event::all_watchers) {	3848	while (IO::AIO::nreqs || BDB::nreqs) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	3849	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2031	}
2032
2033	# cancel all extension coros
2034	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();
2036
2037	# unload all extensions
2038	for (@exts) {
2039	warn "unloading <$_>";
2040	unload_extension $_;
2041	}
2042
2043	# unload all modules loaded from $LIBDIR
2044	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046
2047	warn "removing <$k>";
2048	delete $INC{$k};
2049
2050	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;
2052
2053	if (my $cb = $k->can ("unload_module")) {
2054	$cb->();
2055	}	3850	}
2056		3851
2057	Symbol::delete_package $k;	3852	warn "cancelling all extension coros";
		3853	$_->cancel for values %EXT_CORO;
		3854	%EXT_CORO = ();
		3855
		3856	warn "removing commands";
		3857	%COMMAND = ();
		3858
		3859	warn "removing ext/exti commands";
		3860	%EXTCMD = ();
		3861	%EXTICMD = ();
		3862
		3863	warn "unloading/nuking all extensions";
		3864	for my $pkg (@EXTS) {
		3865	warn "... unloading $pkg";
		3866
		3867	if (my $cb = $pkg->can ("unload")) {
		3868	eval {
		3869	$cb->($pkg);
		3870	1
		3871	} or warn "$pkg unloaded, but with errors: $@";
		3872	}
		3873
		3874	warn "... clearing $pkg";
		3875	clear_package $pkg;
2058	}	3876	}
2059		3877
2060	# sync database to disk	3878	warn "unloading all perl modules loaded from $LIBDIR";
2061	cf::db_sync;	3879	while (my ($k, $v) = each %INC) {
2062	IO::AIO::flush;	3880	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3881
		3882	warn "... unloading $k";
		3883	delete $INC{$k};
		3884
		3885	$k =~ s/\.pm$//;
		3886	$k =~ s/\//::/g;
		3887
		3888	if (my $cb = $k->can ("unload_module")) {
		3889	$cb->();
		3890	}
		3891
		3892	clear_package $k;
		3893	}
		3894
2064	# get rid of safe::, as good as possible	3895	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	3896	clear_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3897	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		3898
2068	# remove register_script_function callbacks	3899	warn "unloading cf.pm \"a bit\"";
2069	# TODO
2070
2071	# unload cf.pm "a bit"
2072	delete $INC{"cf.pm"};	3900	delete $INC{"cf.pm"};
		3901	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2073		3902
2074	# don't, removes xs symbols, too,	3903	# don't, removes xs symbols, too,
2075	# and global variables created in xs	3904	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	3905	#clear_package __PACKAGE__;
2077		3906
2078	# reload cf.pm	3907	warn "unload completed, starting to reload now";
		3908
2079	warn "reloading cf.pm";	3909	warn "reloading cf.pm";
2080	require cf;	3910	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3911	cf::_connect_to_perl_1;
2082		3912
2083	# load config and database again	3913	warn "loading config and database again";
2084	cf::cfg_load;	3914	cf::reload_config;
2085	cf::db_load;
2086		3915
2087	# load extensions
2088	warn "load extensions";	3916	warn "loading extensions";
2089	cf::load_extensions;	3917	cf::load_extensions;
2090		3918
2091	# reattach attachments to objects	3919	if ($REATTACH_ON_RELOAD) {
		3920	warn "reattaching attachments to objects/players";
		3921	_global_reattach; # objects, sockets
		3922	warn "reattaching attachments to maps";
		3923	reattach $_ for values %MAP;
		3924	warn "reattaching attachments to players";
		3925	reattach $_ for values %PLAYER;
		3926	}
		3927
		3928	warn "running post_init jobs";
		3929	(pop @POST_INIT)->(1) while @POST_INIT;
		3930
		3931	warn "leaving sync_job";
		3932
		3933	1
		3934	} or do {
		3935	warn $@;
		3936	cf::cleanup "error while reloading, exiting.";
		3937	};
		3938
2092	warn "reattach";	3939	warn "reloaded";
2093	_global_reattach;	3940	--$RELOAD;
		3941	}
		3942
		3943	$t1 = AE::time - $t1;
		3944	warn "reload completed in ${t1}s\n";
		3945	};
		3946
		3947	our $RELOAD_WATCHER; # used only during reload
		3948
		3949	sub reload_perl() {
		3950	# doing reload synchronously and two reloads happen back-to-back,
		3951	# coro crashes during coro_state_free->destroy here.
		3952
		3953	$RELOAD_WATCHER ||= cf::async {
		3954	Coro::AIO::aio_wait cache_extensions;
		3955
		3956	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3957	do_reload_perl;
		3958	undef $RELOAD_WATCHER;
		3959	};
2094	};	3960	};
2095
2096	if ($@) {
2097	warn $@;
2098	warn "error while reloading, exiting.";
2099	exit 1;
2100	}
2101
2102	warn "reloaded successfully";
2103	};
2104
2105	#############################################################################
2106
2107	unless ($LINK_MAP) {
2108	$LINK_MAP = cf::map::new;
2109
2110	$LINK_MAP->width (41);
2111	$LINK_MAP->height (41);
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,
2120	cb => sub {
2121	$_[0]->w->cancel;
2122
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});
2141
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3961	}
2147
2148	register "<global>", __PACKAGE__;
2149		3962
2150	register_command "reload" => sub {	3963	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3964	my ($who, $arg) = @_;
2152		3965
2153	if ($who->flag (FLAG_WIZ)) {	3966	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3967	$who->message ("reloading server.");
		3968	async {
		3969	$Coro::current->{desc} = "perl_reload";
		3970	reload_perl;
		3971	};
2157	}	3972	}
2158	};	3973	};
2159		3974
2160	unshift @INC, $LIBDIR;	3975	unshift @INC, $LIBDIR;
2161		3976
2162	$TICK_WATCHER = Event->timer (	3977	my $bug_warning = 0;
2163	reentrant => 0,	3978
2164	prio => 0,	3979	our @WAIT_FOR_TICK;
2165	at => $NEXT_TICK || $TICK,	3980	our @WAIT_FOR_TICK_BEGIN;
2166	data => WF_AUTOCANCEL,	3981
2167	cb => sub {	3982	sub wait_for_tick {
2168	unless ($FREEZE) {	3983	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3984
		3985	my $signal = new Coro::Signal;
		3986	push @WAIT_FOR_TICK, $signal;
		3987	$signal->wait;
		3988	}
		3989
		3990	sub wait_for_tick_begin {
		3991	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3992
		3993	my $signal = new Coro::Signal;
		3994	push @WAIT_FOR_TICK_BEGIN, $signal;
		3995	$signal->wait;
		3996	}
		3997
		3998	sub tick {
		3999	if ($Coro::current != $Coro::main) {
		4000	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4001	unless ++$bug_warning > 10;
		4002	return;
		4003	}
		4004
2169	cf::server_tick; # one server iteration	4005	cf::server_tick; # one server iteration
2170	$RUNTIME += $TICK;
2171	}
2172		4006
2173	$NEXT_TICK += $TICK;	4007	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2174		4008
2175	# if we are delayed by four ticks or more, skip them all	4009	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4010	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2177		4011	Coro::async_pool {
2178	$TICK_WATCHER->at ($NEXT_TICK);	4012	$Coro::current->{desc} = "runtime saver";
2179	$TICK_WATCHER->start;
2180	},
2181	);
2182
2183	IO::AIO::max_poll_time $TICK * 0.2;
2184
2185	Event->io (
2186	fd => IO::AIO::poll_fileno,
2187	poll => 'r',
2188	prio => 5,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,
2195	after => 0,
2196	interval => 10,
2197	cb => sub {
2198	(Coro::unblock_sub {
2199	write_runtime	4013	write_runtime_sync
2200	or warn "ERROR: unable to write runtime file: $!";	4014	or warn "ERROR: unable to write runtime file: $!";
2201	})->();	4015	};
2202	},	4016	}
2203	);	4017
		4018	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4019	$sig->send;
		4020	}
		4021	while (my $sig = shift @WAIT_FOR_TICK) {
		4022	$sig->send;
		4023	}
		4024
		4025	$LOAD = ($NOW - $TICK_START) / $TICK;
		4026	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4027
		4028	if (0) {
		4029	if ($NEXT_TICK) {
		4030	my $jitter = $TICK_START - $NEXT_TICK;
		4031	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4032	warn "jitter $JITTER\n";#d#
		4033	}
		4034	}
		4035	}
		4036
		4037	{
		4038	# configure BDB
		4039
		4040	BDB::min_parallel 16;
		4041	BDB::max_poll_reqs $TICK * 0.1;
		4042	$AnyEvent::BDB::WATCHER->priority (1);
		4043
		4044	unless ($DB_ENV) {
		4045	$DB_ENV = BDB::db_env_create;
		4046	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4047	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4048	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4049	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4050	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4051
		4052	cf::sync_job {
		4053	eval {
		4054	BDB::db_env_open
		4055	$DB_ENV,
		4056	$BDBDIR,
		4057	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4058	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4059	0666;
		4060
		4061	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4062	};
		4063
		4064	cf::cleanup "db_env_open(db): $@" if $@;
		4065	};
		4066	}
		4067
		4068	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4069	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4070	};
		4071	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4072	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4073	};
		4074	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4075	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4076	};
		4077	}
		4078
		4079	{
		4080	# configure IO::AIO
		4081
		4082	IO::AIO::min_parallel 8;
		4083	IO::AIO::max_poll_time $TICK * 0.1;
		4084	undef $AnyEvent::AIO::WATCHER;
		4085	}
		4086
		4087	my $_log_backtrace;
		4088
		4089	sub _log_backtrace {
		4090	my ($msg, @addr) = @_;
		4091
		4092	$msg =~ s/\n//;
		4093
		4094	# limit the # of concurrent backtraces
		4095	if ($_log_backtrace < 2) {
		4096	++$_log_backtrace;
		4097	my $perl_bt = Carp::longmess $msg;
		4098	async {
		4099	$Coro::current->{desc} = "abt $msg";
		4100
		4101	my @bt = fork_call {
		4102	@addr = map { sprintf "%x", $_ } @addr;
		4103	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4104	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4105	or die "addr2line: $!";
		4106
		4107	my @funcs;
		4108	my @res = <$fh>;
		4109	chomp for @res;
		4110	while (@res) {
		4111	my ($func, $line) = splice @res, 0, 2, ();
		4112	push @funcs, "[$func] $line";
		4113	}
		4114
		4115	@funcs
		4116	};
		4117
		4118	LOG llevInfo, "[ABT] $perl_bt\n";
		4119	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4120	LOG llevInfo, "[ABT] $_\n" for @bt;
		4121	--$_log_backtrace;
		4122	};
		4123	} else {
		4124	LOG llevInfo, "[ABT] $msg\n";
		4125	LOG llevInfo, "[ABT] [suppressed]\n";
		4126	}
		4127	}
		4128
		4129	# load additional modules
		4130	require "cf/$_.pm" for @EXTRA_MODULES;
		4131	cf::_connect_to_perl_2;
2204		4132
2205	END { cf::emergency_save }	4133	END { cf::emergency_save }
2206		4134
2207	1	4135	1
2208		4136

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