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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.129 by root, Wed Jan 3 00:41:19 2007 UTC vs.
Revision 1.470 by root, Sun Apr 26 19:42:45 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		76
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		78
35	our %COMMAND = ();	79	our %COMMAND = ();
36	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
		81
		82	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
		85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
38		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	89	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		90
42	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	109	our $NEXT_TICK;
45	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default on
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
46		118
47	our %CFG;	119	our %CFG;
48		120
49	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
51		124
52	our %MAP; # all maps	125	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	126	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	127	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	128
56	our %EXT_CORO;	129	# used to convert map paths into valid unix filenames by replacing / by ∕
		130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
57		140
58	binmode STDOUT;	141	binmode STDOUT;
59	binmode STDERR;	142	binmode STDERR;
60		143
61	# read virtual server time, if available	144	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
66	}	149	}
67		150
68	mkdir cf::localdir;	151	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		152
74	# a special map that is always available	153	mkdir $_
75	our $LINK_MAP;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		155
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	156	our $EMERGENCY_POSITION;
		157
		158	sub cf::map::normalise;
78		159
79	#############################################################################	160	#############################################################################
80		161
81	=head2 GLOBAL VARIABLES	162	=head2 GLOBAL VARIABLES
82		163
…		…
89	=item $cf::RUNTIME	170	=item $cf::RUNTIME
90		171
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	172	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	173	every server tick.
93		174
94	=item $cf::LIBDIR	175	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		176	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		177	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		178
96	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	180	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		181	unique-items directory, player file directory, random maps directory and
		182	database environment.
98		183
99	=item $cf::NOW	184	=item $cf::NOW
100		185
101	The time of the last (current) server tick.	186	The time of the last (current) server tick.
102		187
103	=item $cf::TICK	188	=item $cf::TICK
104		189
105	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
106		191
		192	=item $cf::LOADAVG
		193
		194	The current CPU load on the server (alpha-smoothed), as a value between 0
		195	(none) and 1 (overloaded), indicating how much time is spent on processing
		196	objects per tick. Healthy values are < 0.5.
		197
		198	=item $cf::LOAD
		199
		200	The raw value load value from the last tick.
		201
107	=item %cf::CFG	202	=item %cf::CFG
108		203
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	205	from wherever your confdir points to.
		206
		207	=item cf::wait_for_tick, cf::wait_for_tick_begin
		208
		209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		210	returns directly I<after> the tick processing (and consequently, can only wake one process
		211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		212
		213	=item @cf::INVOKE_RESULTS
		214
		215	This array contains the results of the last C<invoke ()> call. When
		216	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		217	that call.
111		218
112	=back	219	=back
113		220
114	=cut	221	=cut
115		222
116	BEGIN {	223	BEGIN {
117	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	225	my $msg = join "", @_;
119	utf8::encode $msg;
120		226
121	$msg .= "\n"	227	$msg .= "\n"
122	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
123		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
124	LOG llevError, "cfperl: $msg";	232	LOG llevError, $msg;
125	};	233	};
126	}	234	}
		235
		236	$Coro::State::DIEHOOK = sub {
		237	return unless $^S eq 0; # "eq", not "=="
		238
		239	if ($Coro::current == $Coro::main) {#d#
		240	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		241	return;#d#
		242	}#d#
		243
		244	# kill coroutine otherwise
		245	warn Carp::longmess $_[0];
		246	Coro::terminate
		247	};
		248
		249	$SIG{__DIE__} = sub { }; #d#?
127		250
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	255	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		256	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	257	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		258
135	# we bless all objects into (empty) derived classes to force a method lookup	259	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	260	# within the Safe compartment.
137	for my $pkg (qw(	261	for my $pkg (qw(
138	cf::global cf::attachable	262	cf::global cf::attachable
139	cf::object cf::object::player	263	cf::object cf::object::player
140	cf::client cf::player	264	cf::client cf::player
141	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
142	cf::map cf::party cf::region	267	cf::party cf::region
143	)) {	268	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	270	}
147		271
148	$Event::DIED = sub {	272	$EV::DIED = sub {
149	warn "error in event callback: @_";	273	warn "error in event callback: @_";
150	};	274	};
151		275
152	my %ext_pkg;	276	#############################################################################
153	my @exts;
154	my @hook;
155		277
156	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
157		279
158	=over 4	280	=over 4
159		281
160	=cut	282	=item dumpval $ref
161		283
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	284	=cut
163		285
		286	sub dumpval {
		287	eval {
		288	local $SIG{__DIE__};
		289	my $d;
		290	if (1) {
		291	$d = new Data::Dumper([$_[0]], ["*var"]);
		292	$d->Terse(1);
		293	$d->Indent(2);
		294	$d->Quotekeys(0);
		295	$d->Useqq(1);
		296	#$d->Bless(...);
		297	$d->Seen($_[1]) if @_ > 1;
		298	$d = $d->Dump();
		299	}
		300	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		301	$d
		302	} || "[unable to dump $_[0]: '$@']";
		303	}
		304
164	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
165		306
166	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
167		308
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
176		310
177	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
178		312
179	=cut	313	=cut
180		314
181	sub to_json($) {	315	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		316
186	=item my $guard = cf::guard { BLOCK }	317	sub encode_json($) { $json_coder->encode ($_[0]) }
		318	sub decode_json($) { $json_coder->decode ($_[0]) }
187		319
188	Run the given callback when the guard object gets destroyed (useful for	320	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		321
191	You can call C<< ->cancel >> on the guard object to stop the block from	322	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	323	but I<before> the server starts ticking again.
193		324
194	=cut	325	The cdoeblock will have a single boolean argument to indicate whether this
		326	is a reload or not.
195		327
196	sub guard(&) {	328	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		329
200	sub cf::guard::cancel {	330	sub post_init(&) {
201	${$_[0]} = sub { };	331	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	332	}
207		333
208	=item cf::lock_wait $string	334	=item cf::lock_wait $string
209		335
210	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
211		337
212	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
213		339
214	Wait until the given lock is available and then acquires it and returns	340	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,	341	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	342	for example when the coroutine gets canceled), the lock is automatically
217	returned.	343	returned.
218		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
219	Lock names should begin with a unique identifier (for example, find_map	348	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	349	uses map_find and cf::map::load uses map_load).
221		350
222	=cut	351	=item $locked = cf::lock_active $string
223		352
224	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
225		358
226	sub lock_wait($) {	359	sub lock_wait($) {
227	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	361	}
235		362
236	sub lock_acquire($) {	363	sub lock_acquire($) {
237	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
238		366
239	# wait, to be sure we are not locked	367	sub lock_active($) {
240	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
		369	}
241		370
242	$LOCK{$key} = [];	371	sub freeze_mainloop {
		372	tick_inhibit_inc;
243		373
244	cf::guard {	374	&Guard::guard (\&tick_inhibit_dec);
245	# wake up all waiters, to be on the safe side	375	}
246	$_->ready for @{ delete $LOCK{$key} };	376
		377	=item cf::periodic $interval, $cb
		378
		379	Like EV::periodic, but randomly selects a starting point so that the actions
		380	get spread over timer.
		381
		382	=cut
		383
		384	sub periodic($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
247	}	435	}
		436	};
		437
		438	sub get_slot($;$$) {
		439	return if tick_inhibit || $Coro::current == $Coro::main;
		440
		441	my ($time, $pri, $name) = @_;
		442
		443	$time = $TICK * .6 if $time > $TICK * .6;
		444	my $sig = new Coro::Signal;
		445
		446	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		447	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		448	$SLOT_QUEUE->ready;
		449	$sig->wait;
248	}	450	}
249		451
250	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
251		453
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	454	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	455	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		456	thing you are allowed to do is call C<prio> on it.
254		457
255	=cut	458	=cut
256		459
257	sub async(&) {	460	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		461
266	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
267		463
268	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
271		468
272	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
275	fast or be very important.	472	fast or be very important.
…		…
278		475
279	sub sync_job(&) {	476	sub sync_job(&) {
280	my ($job) = @_;	477	my ($job) = @_;
281		478
282	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
283	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
285		484
286	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
287	# (but this is cancel-safe)	486
288	local $FREEZE = 1;	487	my $freeze_guard = freeze_mainloop;
289		488
290	my $busy = 1;	489	my $busy = 1;
291	my @res;	490	my @res;
292		491
293	(Coro::async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	494	@res = eval { $job->() };
295	warn $@ if $@;	495	warn $@ if $@;
296	undef $busy;	496	undef $busy;
297	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
298		498
299	while ($busy) {	499	while ($busy) {
		500	if (Coro::nready) {
300	Coro::cede_notself;	501	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
302	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
303		510
304	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
305	} else {	512	} else {
306	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
307		514
308	$job->()	515	$job->()
309	}	516	}
310	}	517	}
311		518
312	=item $coro = cf::coro { BLOCK }	519	=item $coro = cf::async_ext { BLOCK }
313		520
314	Creates and returns a new coro. This coro is automcatially being canceled	521	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	522	extension calling this is being unloaded.
316		523
317	=cut	524	=cut
318		525
319	sub coro(&) {	526	sub async_ext(&) {
320	my $cb = shift;	527	my $cb = shift;
321		528
322	my $coro = &cf::async ($cb);	529	my $coro = &Coro::async ($cb);
323		530
324	$coro->on_destroy (sub {	531	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	532	delete $EXT_CORO{$coro+0};
326	});	533	});
327	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
328		535
329	$coro	536	$coro
330	}	537	}
331		538
332	sub write_runtime {	539	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		540
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	541	Executes the given code block with the given arguments in a seperate
336	or return;	542	process, returning the results. Everything must be serialisable with
		543	Coro::Storable. May, of course, block. Note that the executed sub may
		544	never block itself or use any form of event handling.
337		545
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	546	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		547
342	aio_fsync $fh	548	sub fork_call(&@) {
343	and return;	549	my ($cb, @args) = @_;
344		550
345	close $fh	551	# we seemingly have to make a local copy of the whole thing,
346	or return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
347		554
348	aio_rename "$runtime~", $runtime	555	my @res = Coro::Util::fork_eval {
349	and return;	556	reset_signals;
		557	&$cb
		558	}, @args;
350		559
		560	wantarray ? @res : $res[-1]
		561	}
		562
		563	=item $coin = coin_from_name $name
		564
		565	=cut
		566
		567	our %coin_alias = (
		568	"silver" => "silvercoin",
		569	"silvercoin" => "silvercoin",
		570	"silvercoins" => "silvercoin",
		571	"gold" => "goldcoin",
		572	"goldcoin" => "goldcoin",
		573	"goldcoins" => "goldcoin",
		574	"platinum" => "platinacoin",
		575	"platinumcoin" => "platinacoin",
		576	"platinumcoins" => "platinacoin",
		577	"platina" => "platinacoin",
		578	"platinacoin" => "platinacoin",
		579	"platinacoins" => "platinacoin",
		580	"royalty" => "royalty",
		581	"royalties" => "royalty",
		582	);
		583
		584	sub coin_from_name($) {
		585	$coin_alias{$_[0]}
		586	? cf::arch::find $coin_alias{$_[0]}
		587	: undef
		588	}
		589
		590	=item $value = cf::db_get $family => $key
		591
		592	Returns a single value from the environment database.
		593
		594	=item cf::db_put $family => $key => $value
		595
		596	Stores the given C<$value> in the family. It can currently store binary
		597	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		598
		599	=item $db = cf::db_table "name"
		600
		601	Create and/or open a new database table. The string must not be "db" and must be unique
		602	within each server.
		603
		604	=cut
		605
		606	sub db_table($) {
		607	my ($name) = @_;
		608	my $db = BDB::db_create $DB_ENV;
		609
		610	eval {
		611	$db->set_flags (BDB::CHKSUM);
		612
		613	utf8::encode $name;
		614	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		615	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		616	cf::cleanup "db_open(db): $!" if $!;
		617	};
		618	cf::cleanup "db_open(db): $@" if $@;
		619
		620	$db
		621	}
		622
		623	our $DB;
		624
		625	sub db_init {
		626	cf::sync_job {
		627	$DB ||= db_table "db";
		628	};
		629	}
		630
		631	sub db_get($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
351	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		643	BDB::dbreq_pri 4;
		644	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		645	}
		646
		647	=item cf::cache $id => [$paths...], $processversion => $process
		648
		649	Generic caching function that returns the value of the resource $id,
		650	caching and regenerating as required.
		651
		652	This function can block.
		653
		654	=cut
		655
		656	sub cache {
		657	my ($id, $src, $processversion, $process) = @_;
		658
		659	my $meta =
		660	join "\x00",
		661	$processversion,
		662	map {
		663	aio_stat $_
		664	and Carp::croak "$_: $!";
		665
		666	($_, (stat _)[7,9])
		667	} @$src;
		668
		669	my $dbmeta = db_get cache => "$id/meta";
		670	if ($dbmeta ne $meta) {
		671	# changed, we may need to process
		672
		673	my @data;
		674	my $md5;
		675
		676	for (0 .. $#$src) {
		677	0 <= aio_load $src->[$_], $data[$_]
		678	or Carp::croak "$src->[$_]: $!";
		679	}
		680
		681	# if processing is expensive, check
		682	# checksum first
		683	if (1) {
		684	$md5 =
		685	join "\x00",
		686	$processversion,
		687	map {
		688	cf::cede_to_tick;
		689	($src->[$_], Digest::MD5::md5_hex $data[$_])
		690	} 0.. $#$src;
		691
		692
		693	my $dbmd5 = db_get cache => "$id/md5";
		694	if ($dbmd5 eq $md5) {
		695	db_put cache => "$id/meta", $meta;
		696
		697	return db_get cache => "$id/data";
		698	}
		699	}
		700
		701	my $t1 = Time::HiRes::time;
		702	my $data = $process->(\@data);
		703	my $t2 = Time::HiRes::time;
		704
		705	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		706
		707	db_put cache => "$id/data", $data;
		708	db_put cache => "$id/md5" , $md5;
		709	db_put cache => "$id/meta", $meta;
		710
		711	return $data;
		712	}
		713
		714	db_get cache => "$id/data"
		715	}
		716
		717	=item cf::datalog type => key => value, ...
		718
		719	Log a datalog packet of the given type with the given key-value pairs.
		720
		721	=cut
		722
		723	sub datalog($@) {
		724	my ($type, %kv) = @_;
		725	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	726	}
353		727
354	=back	728	=back
355		729
356	=cut	730	=cut
357		731
358	#############################################################################	732	#############################################################################
359		733
360	package cf::path;
361
362	sub new {
363	my ($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	734	=head2 ATTACHABLE OBJECTS
481		735
482	Many objects in crossfire are so-called attachable objects. That means you can	736	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")	737	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
485		739
486	In the following description, CLASS can be any of C<global>, C<object>	740	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	741	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	742	Deliantra).
489		743
490	=over 4	744	=over 4
491		745
492	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
493		747
…		…
537	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
538		792
539	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
540	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
541		795
542	Some classes such as crossfire maps and objects can specify attachments	796	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.	797	that are attached at load/instantiate time, thus the need for a name.
544		798
545	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
546		800
547	=over 4	801	=over 4
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	861	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	862	our @CB_MAP = ();
609		863
610	my %attachment;	864	my %attachment;
611		865
		866	sub cf::attachable::thawer_merge {
		867	# simply override everything except _meta
		868	local $_[0]{_meta};
		869	%{$_[0]} = %{$_[1]};
		870	}
		871
612	sub _attach_cb($$$$) {	872	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	873	my ($registry, $event, $prio, $cb) = @_;
614		874
615	use sort 'stable';	875	use sort 'stable';
616		876
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
651		911
652	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		916
657	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	918	my $pkg = shift @arg;
659		919
660	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
690	}	950	}
691		951
692	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
693	} else {	953	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	955	}
696		956
697	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
698	}	958	}
699		959
…		…
701	if (ref $_[0]) {	961	if (ref $_[0]) {
702	_object_attach @_;	962	_object_attach @_;
703	} else {	963	} else {
704	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
705	}	965	}
		966	_recalc_want;
706	};	967	};
707		968
708	# all those should be optimised	969	# all those should be optimised
709	sub cf::attachable::detach {	970	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
714	reattach ($obj);	975	reattach ($obj);
715	} else {	976	} else {
716	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
717	}	978	}
		979	_recalc_want;
718	};	980	};
719		981
720	sub cf::attachable::attached {	982	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
722		984
…		…
737	";	999	";
738	die if $@;	1000	die if $@;
739	}	1001	}
740		1002
741	our $override;	1003	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1004	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		1005
744	sub override {	1006	sub override {
745	$override = 1;	1007	$override = 1;
746	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
747	}	1009	}
748		1010
749	sub do_invoke {	1011	sub do_invoke {
750	my $event = shift;	1012	my $event = shift;
751	my $callbacks = shift;	1013	my $callbacks = shift;
752		1014
753	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
754		1016
755	local $override;	1017	local $override;
756		1018
757	for (@$callbacks) {	1019	for (@$callbacks) {
758	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
767	}	1029	}
768		1030
769	0	1031	0
770	}	1032	}
771		1033
772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
773		1035
774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
775		1037
776	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
777		1039
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1040	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	1041	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		1043
782	=back	1044	=back
783		1045
784	=cut	1046	=cut
785		1047
786	#############################################################################	1048	#############################################################################
787	# object support	1049	# object support
		1050
		1051	sub _object_equal($$);
		1052	sub _object_equal($$) {
		1053	my ($a, $b) = @_;
		1054
		1055	return 0 unless (ref $a) eq (ref $b);
		1056
		1057	if ("HASH" eq ref $a) {
		1058	my @ka = keys %$a;
		1059	my @kb = keys %$b;
		1060
		1061	return 0 if @ka != @kb;
		1062
		1063	for (0 .. $#ka) {
		1064	return 0 unless $ka[$_] eq $kb[$_];
		1065	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1066	}
		1067
		1068	} elsif ("ARRAY" eq ref $a) {
		1069
		1070	return 0 if @$a != @$b;
		1071
		1072	for (0 .. $#$a) {
		1073	return 0 unless _object_equal $a->[$_], $b->[$_];
		1074	}
		1075
		1076	} elsif ($a ne $b) {
		1077	return 0;
		1078	}
		1079
		1080	1
		1081	}
		1082
		1083	our $SLOW_MERGES;#d#
		1084	sub _can_merge {
		1085	my ($ob1, $ob2) = @_;
		1086
		1087	++$SLOW_MERGES;#d#
		1088
		1089	# we do the slow way here
		1090	return _object_equal $ob1, $ob2
		1091	}
788		1092
789	sub reattach {	1093	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1095	my ($obj) = @_;
		1096
		1097	# no longer needed after getting rid of delete_package?
		1098	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1099
793	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
794		1101
795	@$registry = ();	1102	@$registry = ();
796		1103
…		…
811	cf::attachable->attach (	1118	cf::attachable->attach (
812	prio => -1000000,	1119	prio => -1000000,
813	on_instantiate => sub {	1120	on_instantiate => sub {
814	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
815		1122
816	$data = from_json $data;	1123	$data = decode_json $data;
817		1124
818	for (@$data) {	1125	for (@$data) {
819	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
820		1127
821	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
837	sub object_freezer_save {	1144	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
839		1146
840	sync_job {	1147	sync_job {
841	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
844		1152
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	1157	aio_close $fh;
850		1158
851	if (@$objs) {	1159	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1160	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	1164	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	1165	aio_close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
859	}	1167	}
860	} else {	1168	} else {
861	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
862	}	1170	}
863		1171
864	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
865	} else {	1176	} else {
866	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
867	}	1178	}
868	} else {	1179	} else {
869	aio_unlink $filename;	1180	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
871	}	1182	}
872	}	1183	};
873	}	1184	}
874		1185
875	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
877		1188
…		…
889	or return;	1200	or return;
890		1201
891	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
893	or return;	1204	or return;
		1205
894	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
895	}	1208	}
896		1209
		1210	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
899	return ($data, $av);	1214	($data, $av)
900	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
901		1222
902	#############################################################################	1223	#############################################################################
903	# command handling &c	1224	# command handling &c
904		1225
905	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1240	}
920		1241
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1243
923	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
924		1249
925	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
926	called.	1251	called.
927		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
928	=cut	1264	=cut
929		1265
930	sub register_extcmd {	1266	sub register_extcmd {
931	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
932		1268
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1269	$EXTCMD{$name} = $cb;
937	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
938		1279
939	cf::player->attach (	1280	cf::player->attach (
940	on_command => sub {	1281	on_command => sub {
941	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
942		1283
…		…
950	cf::override;	1291	cf::override;
951	},	1292	},
952	on_extcmd => sub {	1293	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
954		1295
955	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1297
957	if (ref $msg) {	1298	if (ref $msg) {
		1299	my ($type, $reply, @payload) =
		1300	"ARRAY" eq ref $msg
		1301	? @$msg
		1302	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1303
		1304	my @reply;
		1305
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
963	} else {	1313	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1315	}
966		1316
967	cf::override;	1317	cf::override;
968	},	1318	},
969	);	1319	);
970		1320
971	sub register {	1321	# "readahead" all extensions
972	my ($base, $pkg) = @_;	1322	sub cache_extensions {
		1323	my $grp = IO::AIO::aio_group;
973		1324
974	#TODO	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
975	}	1326	for (grep /\.ext$/, @{$_[0]}) {
		1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1328	}
		1329	};
976		1330
		1331	$grp
		1332	}
		1333
977	sub load_extension {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
		1338	for my $path (<$LIBDIR/*.ext>) {
		1339	next unless -r $path;
		1340
		1341	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1342	my $base = $1;
		1343	my $pkg = $1;
		1344	$pkg =~ s/[^[:word:]]/_/g;
		1345	$pkg = "ext::$pkg";
		1346
		1347	open my $fh, "<:utf8", $path
		1348	or die "$path: $!";
		1349
		1350	my $source = do { local $/; <$fh> };
		1351
		1352	my %ext = (
		1353	path => $path,
		1354	base => $base,
		1355	pkg => $pkg,
		1356	);
		1357
		1358	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1359	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1360
		1361	$ext{source} =
		1362	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1363	. "#line 1 \"$path\"\n{\n"
		1364	. $source
		1365	. "\n};\n1";
		1366
		1367	$todo{$base} = \%ext;
		1368	}
		1369
		1370	my %done;
		1371	while (%todo) {
		1372	my $progress;
		1373
		1374	while (my ($k, $v) = each %todo) {
		1375	for (split /,\s*/, $v->{meta}{depends}) {
		1376	goto skip
		1377	unless exists $done{$_};
		1378	}
		1379
		1380	warn "... loading '$k' into '$v->{pkg}'\n";
		1381
		1382	unless (eval $v->{source}) {
		1383	my $msg = $@ ? "$v->{path}: $@\n"
		1384	: "$v->{base}: extension inactive.\n";
		1385
		1386	if (exists $v->{meta}{mandatory}) {
		1387	warn $msg;
		1388	cf::cleanup "mandatory extension failed to load, exiting.";
		1389	}
		1390
		1391	warn $msg;
		1392	}
		1393
		1394	$done{$k} = delete $todo{$k};
		1395	push @EXTS, $v->{pkg};
		1396	$progress = 1;
		1397	}
		1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
		1403	};
		1404	}
		1405
		1406	#############################################################################
		1407
		1408	=back
		1409
		1410	=head2 CORE EXTENSIONS
		1411
		1412	Functions and methods that extend core deliantra objects.
		1413
		1414	=cut
		1415
		1416	package cf::player;
		1417
		1418	use Coro::AIO;
		1419
		1420	=head3 cf::player
		1421
		1422	=over 4
		1423
		1424	=item cf::player::num_playing
		1425
		1426	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1427
		1428	=cut
		1429
		1430	sub num_playing {
		1431	scalar grep
		1432	$_->ob->map
		1433	&& !$_->hidden
		1434	&& !$_->ob->flag (cf::FLAG_WIZ),
		1435	cf::player::list
		1436	}
		1437
		1438	=item cf::player::find $login
		1439
		1440	Returns the given player object, loading it if necessary (might block).
		1441
		1442	=cut
		1443
		1444	sub playerdir($) {
		1445	"$PLAYERDIR/"
		1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1447	}
		1448
		1449	sub path($) {
		1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1451
		1452	(playerdir $login) . "/playerdata"
		1453	}
		1454
		1455	sub find_active($) {
		1456	$cf::PLAYER{$_[0]}
		1457	and $cf::PLAYER{$_[0]}->active
		1458	and $cf::PLAYER{$_[0]}
		1459	}
		1460
		1461	sub exists($) {
		1462	my ($login) = @_;
		1463
		1464	$cf::PLAYER{$login}
		1465	or !aio_stat path $login
		1466	}
		1467
		1468	sub find($) {
		1469	return $cf::PLAYER{$_[0]} || do {
		1470	my $login = $_[0];
		1471
		1472	my $guard = cf::lock_acquire "user_find:$login";
		1473
		1474	$cf::PLAYER{$_[0]} || do {
		1475	# rename old playerfiles to new ones
		1476	#TODO: remove when no longer required
		1477	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1478	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1479	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1480	aio_unlink +(playerdir $login) . "/$login.pl";
		1481
		1482	my $f = new_from_file cf::object::thawer path $login
		1483	or return;
		1484
		1485	my $pl = cf::player::load_pl $f
		1486	or return;
		1487
		1488	local $cf::PLAYER_LOADING{$login} = $pl;
		1489	$f->resolve_delayed_derefs;
		1490	$cf::PLAYER{$login} = $pl
		1491	}
		1492	}
		1493	}
		1494
		1495	sub save($) {
		1496	my ($pl) = @_;
		1497
		1498	return if $pl->{deny_save};
		1499
		1500	my $path = path $pl;
		1501	my $guard = cf::lock_acquire "user_save:$path";
		1502
		1503	return if $pl->{deny_save};
		1504
		1505	aio_mkdir playerdir $pl, 0770;
		1506	$pl->{last_save} = $cf::RUNTIME;
		1507
		1508	cf::get_slot 0.01;
		1509
		1510	$pl->save_pl ($path);
		1511	cf::cede_to_tick;
		1512	}
		1513
		1514	sub new($) {
		1515	my ($login) = @_;
		1516
		1517	my $self = create;
		1518
		1519	$self->ob->name ($login);
		1520	$self->{deny_save} = 1;
		1521
		1522	$cf::PLAYER{$login} = $self;
		1523
		1524	$self
		1525	}
		1526
		1527	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1528
		1529	=cut
		1530
		1531	sub send_msg {
		1532	my $ns = shift->ns
		1533	or return;
		1534	$ns->send_msg (@_);
		1535	}
		1536
		1537	=item $pl->quit_character
		1538
		1539	Nukes the player without looking back. If logged in, the connection will
		1540	be destroyed. May block for a long time.
		1541
		1542	=cut
		1543
		1544	sub quit_character {
		1545	my ($pl) = @_;
		1546
		1547	my $name = $pl->ob->name;
		1548
		1549	$pl->{deny_save} = 1;
		1550	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1551
		1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
		1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1557	$pl->ns->destroy if $pl->ns;
		1558
		1559	my $path = playerdir $pl;
		1560	my $temp = "$path~$cf::RUNTIME~deleting~";
		1561	aio_rename $path, $temp;
		1562	delete $cf::PLAYER{$pl->ob->name};
		1563	$pl->destroy;
		1564
		1565	my $prefix = qr<^~\Q$name\E/>;
		1566
		1567	# nuke player maps
		1568	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1569
		1570	IO::AIO::aio_rmtree $temp;
		1571	}
		1572
		1573	=item $pl->kick
		1574
		1575	Kicks a player out of the game. This destroys the connection.
		1576
		1577	=cut
		1578
		1579	sub kick {
		1580	my ($pl, $kicker) = @_;
		1581
		1582	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1583	$pl->killer ("kicked");
		1584	$pl->ns->destroy;
		1585	}
		1586
		1587	=item cf::player::list_logins
		1588
		1589	Returns am arrayref of all valid playernames in the system, can take a
		1590	while and may block, so not sync_job-capable, ever.
		1591
		1592	=cut
		1593
		1594	sub list_logins {
		1595	my $dirs = aio_readdir $PLAYERDIR
		1596	or return [];
		1597
		1598	my @logins;
		1599
		1600	for my $login (@$dirs) {
		1601	my $path = path $login;
		1602
		1603	# a .pst is a dead give-away for a valid player
		1604	# if no pst file found, open and chekc for blocked users
		1605	if (aio_stat "$path.pst") {
		1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1607	aio_read $fh, 0, 512, my $buf, 0 or next;
		1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
		1610
		1611	utf8::decode $login;
		1612	push @logins, $login;
		1613	}
		1614
		1615	\@logins
		1616	}
		1617
		1618	=item $player->maps
		1619
		1620	Returns an arrayref of map paths that are private for this
		1621	player. May block.
		1622
		1623	=cut
		1624
		1625	sub maps($) {
		1626	my ($pl) = @_;
		1627
		1628	$pl = ref $pl ? $pl->ob->name : $pl;
		1629
		1630	my $files = aio_readdir playerdir $pl
		1631	or return;
		1632
		1633	my @paths;
		1634
		1635	for (@$files) {
		1636	utf8::decode $_;
		1637	next if /\.(?:pl|pst)$/;
		1638	next unless /^$PATH_SEP/o;
		1639
		1640	push @paths, cf::map::normalise "~$pl/$_";
		1641	}
		1642
		1643	\@paths
		1644	}
		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
		1650	=item $player->ext_reply ($msgid, @msg)
		1651
		1652	Sends an ext reply to the player.
		1653
		1654	=cut
		1655
		1656	sub ext_reply($$@) {
		1657	my ($self, $id, @msg) = @_;
		1658
		1659	$self->ns->ext_reply ($id, @msg)
		1660	}
		1661
		1662	=item $player->ext_msg ($type, @msg)
		1663
		1664	Sends an ext event to the client.
		1665
		1666	=cut
		1667
		1668	sub ext_msg($$@) {
		1669	my ($self, $type, @msg) = @_;
		1670
		1671	$self->ns->ext_msg ($type, @msg);
		1672	}
		1673
		1674	=head3 cf::region
		1675
		1676	=over 4
		1677
		1678	=cut
		1679
		1680	package cf::region;
		1681
		1682	=item cf::region::find_by_path $path
		1683
		1684	Tries to decuce the likely region for a map knowing only its path.
		1685
		1686	=cut
		1687
		1688	sub find_by_path($) {
978	my ($path) = @_;	1689	my ($path) = @_;
979		1690
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1691	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1692
986	warn "loading '$path' into '$pkg'\n";	1693	for my $region (list) {
987		1694	if ($region->{match} && $path =~ $region->{match}) {
988	open my $fh, "<:utf8", $path	1695	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1696	if $region->specificity > $specificity;
990		1697	}
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	# }	1698	}
1020		1699
1021	# remove commands	1700	$match
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	}
1030	}
1031
1032	# remove extcmds
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	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
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	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1701	}
1127		1702
1128	=back	1703	=back
1129
1130		1704
1131	=head3 cf::map	1705	=head3 cf::map
1132		1706
1133	=over 4	1707	=over 4
1134		1708
…		…
1137	package cf::map;	1711	package cf::map;
1138		1712
1139	use Fcntl;	1713	use Fcntl;
1140	use Coro::AIO;	1714	use Coro::AIO;
1141		1715
		1716	use overload
		1717	'""' => \&as_string,
		1718	fallback => 1;
		1719
1142	our $MAX_RESET = 7200;	1720	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1721	our $DEFAULT_RESET = 3000;
1144		1722
1145	sub generate_random_map {	1723	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1724	my ($self, $rmp) = @_;
		1725
		1726	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1147		1727
1148	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1729	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
1162	}	1742	}
1163		1743
1164	# and all this just because we cannot iterate over	1744	=item cf::map->register ($regex, $prio)
1165	# all maps in C++...
1166	sub change_all_map_light {
1167	my ($change) = @_;
1168		1745
1169	$_->change_map_light ($change)	1746	Register a handler for the map path matching the given regex at the
1170	for grep $_->outdoor, values %cf::MAP;	1747	givne priority (higher is better, built-in handlers have priority 0, the
1171	}	1748	default).
1172		1749
1173	sub try_load_header($) {	1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
1174	my ($path) = @_;	1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1868	"$UNIQUEDIR/$path"
		1869	}
		1870
		1871	sub decay_objects {
		1872	my ($self) = @_;
		1873
		1874	return if $self->{deny_reset};
		1875
		1876	$self->do_decay_objects;
		1877	}
		1878
		1879	sub unlink_save {
		1880	my ($self) = @_;
		1881
		1882	utf8::encode (my $save = $self->save_path);
		1883	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1884	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1885	}
		1886
		1887	sub load_header_from($) {
		1888	my ($self, $path) = @_;
1175		1889
1176	utf8::encode $path;	1890	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1178	or return;	1892	or return;
1179		1893
1180	my $map = cf::map::new	1894	$self->_load_header ($f)
1181	or return;	1895	or return;
1182		1896
1183	$map->load_header ($path)	1897	local $MAP_LOADING{$self->{path}} = $self;
		1898	$f->resolve_delayed_derefs;
		1899
		1900	$self->{load_path} = $path;
		1901
		1902	1
		1903	}
		1904
		1905	sub load_header_orig {
		1906	my ($self) = @_;
		1907
		1908	$self->load_header_from ($self->load_path)
		1909	}
		1910
		1911	sub load_header_temp {
		1912	my ($self) = @_;
		1913
		1914	$self->load_header_from ($self->save_path)
		1915	}
		1916
		1917	sub prepare_temp {
		1918	my ($self) = @_;
		1919
		1920	$self->last_access ((delete $self->{last_access})
		1921	|| $cf::RUNTIME); #d#
		1922	# safety
		1923	$self->{instantiate_time} = $cf::RUNTIME
		1924	if $self->{instantiate_time} > $cf::RUNTIME;
		1925	}
		1926
		1927	sub prepare_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->{load_original} = 1;
		1931	$self->{instantiate_time} = $cf::RUNTIME;
		1932	$self->last_access ($cf::RUNTIME);
		1933	$self->instantiate;
		1934	}
		1935
		1936	sub load_header {
		1937	my ($self) = @_;
		1938
		1939	if ($self->load_header_temp) {
		1940	$self->prepare_temp;
		1941	} else {
		1942	$self->load_header_orig
1184	or return;	1943	or return;
		1944	$self->prepare_orig;
		1945	}
1185		1946
1186	$map->{load_path} = $path;	1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
1187		1949
1188	$map	1950	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	1951	unless $self->default_region;
1190		1952
		1953	1
		1954	}
		1955
1191	sub find_map;	1956	sub find;
1192	sub find_map {	1957	sub find {
1193	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1194		1959
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1961
1200	cf::lock_wait "map_find:$key";	1962	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";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1204		1964
1205	# do it the slow way	1965	$cf::MAP{$path} || do {
1206	my $map = try_load_header $path->save_path;	1966	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;	1967	or return;
1220		1968
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;	1969	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1970
1234	if ($map->should_reset) {	1971	$map->load_header
		1972	or return;
		1973
		1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1975	# doing this can freeze the server in a sync job, obviously
		1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1235	$map->reset;	1979	$map->reset;
1236	undef $guard;	1980	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	1981	}
1240		1982
1241	$cf::MAP{$key} = $map	1983	$cf::MAP{$path} = $map
1242	}	1984	}
1243	}	1985	}
		1986
		1987	sub pre_load { }
		1988	sub post_load { }
1244		1989
1245	sub load {	1990	sub load {
1246	my ($self) = @_;	1991	my ($self) = @_;
1247		1992
		1993	local $self->{deny_reset} = 1; # loading can take a long time
		1994
1248	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1998	my $guard = cf::lock_acquire "map_data:$path";
1250		1999
		2000	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2002
1253	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1254		2004
1255	$self->alloc;	2005	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2006
		2007	$self->pre_load;
		2008	cf::cede_to_tick;
		2009
		2010	my $f = new_from_file cf::object::thawer $self->{load_path};
		2011	$f->skip_block;
		2012	$self->_load_objects ($f)
1257	or return;	2013	or return;
1258		2014
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1260	if delete $self->{load_original};	2016	if delete $self->{load_original};
1261		2017
1262	if (my $uniq = $path->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2019	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2022	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1267	}	2026	}
1268	}	2027	}
1269		2028
		2029	$f->resolve_delayed_derefs;
		2030
		2031	cf::cede_to_tick;
1270	# now do the right thing for maps	2032	# now do the right thing for maps
1271	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1272
1273	if ($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)	2034	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2035	unless $self->difficulty;
		2036	cf::cede_to_tick;
		2037
		2038	unless ($self->{deny_activate}) {
		2039	$self->decay_objects;
		2040	$self->fix_auto_apply;
		2041	$self->update_buttons;
		2042	cf::cede_to_tick;
1283	$self->activate;	2043	$self->activate;
1284	}	2044	}
1285		2045
		2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
		2048
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2049	$self->in_memory (cf::MAP_ACTIVE);
1287	}	2050	}
1288		2051
1289	sub load_map_sync {	2052	$self->post_load;
		2053	}
		2054
		2055	sub customise_for {
		2056	my ($self, $ob) = @_;
		2057
		2058	return find "~" . $ob->name . "/" . $self->{path}
		2059	if $self->per_player;
		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
		2064	$self
		2065	}
		2066
		2067	# find and load all maps in the 3x3 area around a map
		2068	sub load_neighbours {
		2069	my ($map) = @_;
		2070
		2071	my @neigh; # diagonal neighbours
		2072
		2073	for (0 .. 3) {
		2074	my $neigh = $map->tile_path ($_)
		2075	or next;
		2076	$neigh = find $neigh, $map
		2077	or next;
		2078	$neigh->load;
		2079
		2080	push @neigh,
		2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2083	}
		2084
		2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
		2087	my $neigh = find $path, $origin
		2088	or next;
		2089	$neigh->load;
		2090	}
		2091	}
		2092
		2093	sub find_sync {
1290	my ($path, $origin) = @_;	2094	my ($path, $origin) = @_;
1291		2095
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2096	cf::sync_job { find $path, $origin }
		2097	}
1293		2098
1294	cf::sync_job {	2099	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	2100	my ($map) = @_;
1296	or return;	2101
1297	$map->load;	2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1298	$map	2103	if $Coro::current == $Coro::main;
		2104
		2105	cf::sync_job { $map->load };
		2106	}
		2107
		2108	our %MAP_PREFETCH;
		2109	our $MAP_PREFETCHER = undef;
		2110
		2111	sub find_async {
		2112	my ($path, $origin, $load) = @_;
		2113
		2114	$path = normalise $path, $origin && $origin->{path};
		2115
		2116	if (my $map = $cf::MAP{$path}) {
		2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2118	}
		2119
		2120	$MAP_PREFETCH{$path} |= $load;
		2121
		2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
		2125	while (%MAP_PREFETCH) {
		2126	while (my ($k, $v) = each %MAP_PREFETCH) {
		2127	if (my $map = find $k) {
		2128	$map->load if $v;
		2129	}
		2130
		2131	delete $MAP_PREFETCH{$k};
		2132	}
		2133	}
		2134	undef $MAP_PREFETCHER;
1299	}	2135	};
		2136	$MAP_PREFETCHER->prio (6);
		2137
		2138	()
1300	}	2139	}
1301		2140
1302	sub save {	2141	sub save {
1303	my ($self) = @_;	2142	my ($self) = @_;
1304		2143
		2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2145
1305	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1306		2147
1307	return unless $self->dirty;	2148	return unless $self->dirty;
1308		2149
1309	my $save = $self->{path}->save_path; utf8::encode $save;	2150	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2151	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		2152
1312	$self->{load_path} = $save;	2153	$self->{load_path} = $save;
1313		2154
1314	return if $self->{deny_save};	2155	return if $self->{deny_save};
1315		2156
		2157	local $self->{last_access} = $self->last_access;#d#
		2158
		2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
		2161	$_->contr->save for $self->players;
		2162	};
		2163
		2164	cf::get_slot 0.02;
		2165
1316	if ($uniq) {	2166	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2169	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2170	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2171	}
1322	}	2172	}
1323		2173
1324	sub swap_out {	2174	sub swap_out {
1325	my ($self) = @_;	2175	my ($self) = @_;
1326		2176
		2177	# save first because save cedes
		2178	$self->save;
		2179
		2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2181
1327	return if $self->players;	2182	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1329	return if $self->{deny_save};	2184	return if $self->{deny_save};
1330		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
1331	$self->save;	2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2190	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2191	}
1335		2192
1336	sub reset_at {	2193	sub reset_at {
1337	my ($self) = @_;	2194	my ($self) = @_;
1338		2195
1339	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1342		2198
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2201
…		…
1350	my ($self) = @_;	2206	my ($self) = @_;
1351		2207
1352	$self->reset_at <= $cf::RUNTIME	2208	$self->reset_at <= $cf::RUNTIME
1353	}	2209	}
1354		2210
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2211	sub reset {
1377	my ($self) = @_;	2212	my ($self) = @_;
1378		2213
		2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2215
1379	return if $self->players;	2216	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2217
1382	warn "resetting map ", $self->path;#d#	2218	warn "resetting map ", $self->path;
		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	# need to save uniques path
		2223	unless ($self->{deny_save}) {
		2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2225
		2226	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2227	if $uniq;
		2228	}
1383		2229
1384	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1385		2231
		2232	$self->deactivate;
1386	$_->clear_links_to ($self) for values %cf::MAP;	2233	$_->clear_links_to ($self) for values %cf::MAP;
		2234	$self->clear;
1387		2235
1388	$self->unlink_save;	2236	$self->unlink_save;
1389	$self->destroy;	2237	$self->destroy;
1390	}	2238	}
1391		2239
1392	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1393		2241
1394	sub nuke {	2242	sub nuke {
1395	my ($self) = @_;	2243	my ($self) = @_;
1396		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
		2248	delete $cf::MAP{$self->path};
		2249
		2250	$self->unlink_save;
		2251
		2252	bless $self, "cf::map";
		2253	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2257
		2258	$cf::MAP{$self->path} = $self;
		2259	}
		2260
1400	$self->reset; # polite request, might not happen	2261	$self->reset; # polite request, might not happen
1401	}	2262	}
1402		2263
1403	sub customise_for {	2264	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2265
1406	if ($map->per_player) {	2266	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2267	maps. May block.
		2268
		2269	=cut
		2270
		2271	sub tmp_maps() {
1408	}	2272	[
1409		2273	map {
1410	$map	2274	utf8::decode $_;
		2275	/\.map$/
		2276	? normalise $_
		2277	: ()
		2278	} @{ aio_readdir $TMPDIR or [] }
		2279	]
1411	}	2280	}
1412		2281
1413	sub emergency_save {	2282	=item $maps = cf::map::random_maps
1414	local $cf::FREEZE = 1;
1415		2283
1416	warn "enter emergency map save\n";	2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	random maps. May block.
1417		2286
1418	cf::sync_job {	2287	=cut
1419	warn "begin emergency map save\n";	2288
1420	$_->save for values %cf::MAP;	2289	sub random_maps() {
		2290	[
		2291	map {
		2292	utf8::decode $_;
		2293	/\.map$/
		2294	? normalise "?random/$_"
		2295	: ()
		2296	} @{ aio_readdir $RANDOMDIR or [] }
		2297	]
		2298	}
		2299
		2300	=item cf::map::unique_maps
		2301
		2302	Returns an arrayref of paths of all shared maps that have
		2303	instantiated unique items. May block.
		2304
		2305	=cut
		2306
		2307	sub unique_maps() {
		2308	[
		2309	map {
		2310	utf8::decode $_;
		2311	s/\.map$//; # TODO future compatibility hack
		2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2313	? ()
		2314	: normalise $_
		2315	} @{ aio_readdir $UNIQUEDIR or [] }
		2316	]
		2317	}
		2318
		2319	=back
		2320
		2321	=head3 cf::object
		2322
		2323	=cut
		2324
		2325	package cf::object;
		2326
		2327	=over 4
		2328
		2329	=item $ob->inv_recursive
		2330
		2331	Returns the inventory of the object I<and> their inventories, recursively,
		2332	but I<not> the object itself.
		2333
		2334	=cut
		2335
		2336	sub inv_recursive_;
		2337	sub inv_recursive_ {
		2338	map { $_, inv_recursive_ $_->inv } @_
		2339	}
		2340
		2341	sub inv_recursive {
		2342	inv_recursive_ inv $_[0]
		2343	}
		2344
		2345	=item $ref = $ob->ref
		2346
		2347	Creates and returns a persistent reference to an object that can be stored as a string.
		2348
		2349	=item $ob = cf::object::deref ($refstring)
		2350
		2351	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2352	even if the object actually exists. May block.
		2353
		2354	=cut
		2355
		2356	sub deref {
		2357	my ($ref) = @_;
		2358
		2359	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2360	my ($uuid, $name) = ($1, $2);
		2361	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2362	or return;
		2363	$pl->ob->uuid eq $uuid
		2364	or return;
		2365
		2366	$pl->ob
		2367	} else {
		2368	warn "$ref: cannot resolve object reference\n";
		2369	undef
1421	};	2370	}
1422
1423	warn "end emergency map save\n";
1424	}	2371	}
1425		2372
1426	package cf;	2373	package cf;
1427		2374
1428	=back	2375	=back
1429
1430		2376
1431	=head3 cf::object::player	2377	=head3 cf::object::player
1432		2378
1433	=over 4	2379	=over 4
1434		2380
…		…
1437	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2383	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1438	can be C<undef>. Does the right thing when the player is currently in a	2384	can be C<undef>. Does the right thing when the player is currently in a
1439	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1440		2386
1441	=cut	2387	=cut
		2388
		2389	our $SAY_CHANNEL = {
		2390	id => "say",
		2391	title => "Map",
		2392	reply => "say ",
		2393	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2394	};
		2395
		2396	our $CHAT_CHANNEL = {
		2397	id => "chat",
		2398	title => "Chat",
		2399	reply => "chat ",
		2400	tooltip => "Player chat and shouts, global to the server.",
		2401	};
1442		2402
1443	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1444	# with dialog boxes.	2404	# with dialog boxes.
1445	#TODO: the first argument must go, split into a $npc->reply_to ( method	2405	#TODO: the first argument must go, split into a $npc->reply_to ( method
1446	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1448		2408
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2410
1451	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1453	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1456	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
1457	}	2436	}
1458		2437
1459	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1460		2439
1461	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1474		2453
1475	=item $player_object->enter_link	2454	=item $player_object->enter_link
1476		2455
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2456	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2457
1479	The player should be reaosnably safe there for short amounts of time. You	2458	The player should be reasonably safe there for short amounts of time (e.g.
1480	I<MUST> call C<leave_link> as soon as possible, though.	2459	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2460	though, as the palyer cannot control the character while it is on the link
		2461	map.
		2462
		2463	Will never block.
1481		2464
1482	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1483		2466
1484	Moves the player out of the specila link map onto the given map. If the	2467	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2468	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2469	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2470	fails, to the emergency map position.
1488		2471
1489	Might block.	2472	Might block.
1490		2473
1491	=cut	2474	=cut
		2475
		2476	sub link_map {
		2477	unless ($LINK_MAP) {
		2478	$LINK_MAP = cf::map::find "{link}"
		2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2480	$LINK_MAP->load;
		2481	}
		2482
		2483	$LINK_MAP
		2484	}
1492		2485
1493	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2487	my ($self) = @_;
1495		2488
1496	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1497		2490
1498	return if $self->map == $LINK_MAP;	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2492
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1502		2495
1503	$self->enter_map ($LINK_MAP, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2497	}
1505		2498
1506	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1508		2503
1509	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1510		2505
1511	unless ($map) {	2506	unless ($map) {
1512	# restore original map position	2507	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	2508	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	2509	$map = cf::map::find $map;
1515		2510
1516	unless ($map) {	2511	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	2512	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	2513	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	2514	or die "FATAL: cannot load emergency map\n";
1520	}	2515	}
1521	}	2516	}
1522		2517
1523	($x, $y) = (-1, -1)	2518	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1529		2524
1530	$map->load;	2525	$map->load;
		2526	$map->load_neighbours;
1531		2527
		2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1532	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1534	}	2534	}
1535		2535
1536	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2537
1540	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1544	};	2542	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2543
1550	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1551	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563		2546
1564	=item $player_object->goto_map ($path, $x, $y)
1565
1566	=cut	2547	=cut
1567		2548
		2549	our $GOTOGEN;
		2550
1568	sub cf::object::player::goto_map {	2551	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2552	my ($self, $path, $x, $y, $check, $done) = @_;
		2553
		2554	# do generation counting so two concurrent goto's will be executed in-order
		2555	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2556
1571	$self->enter_link;	2557	$self->enter_link;
1572		2558
1573	(cf::async {	2559	(async {
1574	$path = new cf::path $path;	2560	$Coro::current->{desc} = "player::goto $path $x $y";
1575		2561
1576	my $map = cf::map::find_map $path->as_string;	2562	# *tag paths override both path and x|y
		2563	if ($path =~ /^\*(.*)$/) {
		2564	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2565	my $ob = $obs[rand @obs];
		2566
		2567	# see if we actually can go there
		2568	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2569	$ob = $obs[rand @obs];
		2570	} else {
		2571	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	}
		2573	# else put us there anyways for now #d#
		2574
		2575	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2576	} else {
		2577	($path, $x, $y) = (undef, undef, undef);
		2578	}
		2579	}
		2580
		2581	my $map = eval {
		2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
1578		2586	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2587	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2588	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
1583		2590
		2591	$map
		2592	};
		2593
		2594	if ($@) {
		2595	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	LOG llevError | logBacktrace, Carp::longmess $@;
		2597	}
		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1585	})->prio (1);	2605	})->prio (1);
1586	}	2606	}
1587		2607
1588	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1589		2609
…		…
1591		2611
1592	sub parse_random_map_params {	2612	sub parse_random_map_params {
1593	my ($spec) = @_;	2613	my ($spec) = @_;
1594		2614
1595	my $rmp = { # defaults	2615	my $rmp = { # defaults
1596	xsize => 10,	2616	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2617	ysize => (cf::rndm 15, 40),
		2618	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2619	#layout => string,
1598	};	2620	};
1599		2621
1600	for (split /\n/, $spec) {	2622	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2623	my ($k, $v) = split /\s+/, $_, 2;
1602		2624
…		…
1614	# that depends on the exit object	2636	# that depends on the exit object
1615		2637
1616	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
1617		2639
1618	if ($exit->map) {	2640	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2641	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1623	}	2647	}
1624		2648
1625	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1626		2650
1627	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1628	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
		2653	my $meta = "$RANDOMDIR/$md5.meta";
1629		2654
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
		2657	undef $fh;
		2658	aio_rename "$meta~", $meta;
1632		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1633	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1635	}	2666	}
1636	}	2667	}
1637		2668
1638	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
1640		2671
1641	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1642		2673
1643	$self->enter_link;	2674	$self->enter_link;
1644		2675
1645	(cf::async {	2676	(async {
		2677	$Coro::current->{desc} = "enter_exit";
		2678
1646	unless (eval {	2679	unless (eval {
		2680	$self->deactivate_recursive; # just to be sure
		2681
		2682	# random map handling
		2683	{
		2684	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2685
1647	prepare_random_map $exit	2686	prepare_random_map $exit
1648	if $exit->slaying eq "/!";	2687	if $exit->slaying eq "/!";
		2688	}
1649		2689
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2690	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
1652		2693
		2694	$self->goto ($map, $x, $y);
		2695
		2696	# if exit is damned, update players death & WoR home-position
		2697	$self->contr->savebed ($map, $x, $y)
		2698	if $exit->flag (cf::FLAG_DAMNED);
		2699
1653	1;	2700	1
1654	}) {	2701	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1656	. "I'll try to bring you back to the map you were before. "	2703	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	2704	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2706
1660	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2708	$self->leave_link;
1662	}	2709	}
1663	})->prio (1);	2710	})->prio (1);
…		…
1676		2723
1677	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1679		2726
1680	utf8::encode $text;	2727	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2729	}
1683		2730
		2731	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2732
		2733	Send a drawinfo or msg packet to the client, formatting the msg for the
		2734	client if neccessary. C<$type> should be a string identifying the type of
		2735	the message, with C<log> being the default. If C<$color> is negative, suppress
		2736	the message unless the client supports the msg packet.
		2737
		2738	=cut
		2739
		2740	# non-persistent channels (usually the info channel)
		2741	our %CHANNEL = (
		2742	"c/identify" => {
		2743	id => "infobox",
		2744	title => "Identify",
		2745	reply => undef,
		2746	tooltip => "Items recently identified",
		2747	},
		2748	"c/examine" => {
		2749	id => "infobox",
		2750	title => "Examine",
		2751	reply => undef,
		2752	tooltip => "Signs and other items you examined",
		2753	},
		2754	"c/book" => {
		2755	id => "infobox",
		2756	title => "Book",
		2757	reply => undef,
		2758	tooltip => "The contents of a note or book",
		2759	},
		2760	"c/lookat" => {
		2761	id => "infobox",
		2762	title => "Look",
		2763	reply => undef,
		2764	tooltip => "What you saw there",
		2765	},
		2766	"c/who" => {
		2767	id => "infobox",
		2768	title => "Players",
		2769	reply => undef,
		2770	tooltip => "Shows players who are currently online",
		2771	},
		2772	"c/body" => {
		2773	id => "infobox",
		2774	title => "Body Parts",
		2775	reply => undef,
		2776	tooltip => "Shows which body parts you posess and are available",
		2777	},
		2778	"c/statistics" => {
		2779	id => "infobox",
		2780	title => "Statistics",
		2781	reply => undef,
		2782	tooltip => "Shows your primary statistics",
		2783	},
		2784	"c/skills" => {
		2785	id => "infobox",
		2786	title => "Skills",
		2787	reply => undef,
		2788	tooltip => "Shows your experience per skill and item power",
		2789	},
		2790	"c/shopitems" => {
		2791	id => "infobox",
		2792	title => "Shop Items",
		2793	reply => undef,
		2794	tooltip => "Shows the items currently for sale in this shop",
		2795	},
		2796	"c/resistances" => {
		2797	id => "infobox",
		2798	title => "Resistances",
		2799	reply => undef,
		2800	tooltip => "Shows your resistances",
		2801	},
		2802	"c/pets" => {
		2803	id => "infobox",
		2804	title => "Pets",
		2805	reply => undef,
		2806	tooltip => "Shows information abotu your pets/a specific pet",
		2807	},
		2808	"c/uptime" => {
		2809	id => "infobox",
		2810	title => "Uptime",
		2811	reply => undef,
		2812	tooltip => "How long the server has been running since last restart",
		2813	},
		2814	"c/mapinfo" => {
		2815	id => "infobox",
		2816	title => "Map Info",
		2817	reply => undef,
		2818	tooltip => "Information related to the maps",
		2819	},
		2820	"c/party" => {
		2821	id => "party",
		2822	title => "Party",
		2823	reply => "gsay ",
		2824	tooltip => "Messages and chat related to your party",
		2825	},
		2826	"c/death" => {
		2827	id => "death",
		2828	title => "Death",
		2829	reply => undef,
		2830	tooltip => "Reason for and more info about your most recent death",
		2831	},
		2832	"c/say" => $SAY_CHANNEL,
		2833	"c/chat" => $CHAT_CHANNEL,
		2834	);
		2835
		2836	sub cf::client::send_msg {
		2837	my ($self, $channel, $msg, $color, @extra) = @_;
		2838
		2839	$msg = $self->pl->expand_cfpod ($msg)
		2840	unless $color & cf::NDI_VERBATIM;
		2841
		2842	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2843
		2844	# check predefined channels, for the benefit of C
		2845	if ($CHANNEL{$channel}) {
		2846	$channel = $CHANNEL{$channel};
		2847
		2848	$self->ext_msg (channel_info => $channel);
		2849	$channel = $channel->{id};
		2850
		2851	} elsif (ref $channel) {
		2852	# send meta info to client, if not yet sent
		2853	unless (exists $self->{channel}{$channel->{id}}) {
		2854	$self->{channel}{$channel->{id}} = $channel;
		2855	$self->ext_msg (channel_info => $channel);
		2856	}
		2857
		2858	$channel = $channel->{id};
		2859	}
		2860
		2861	return unless @extra || length $msg;
		2862
		2863	# default colour, mask it out
		2864	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2865	if $color & cf::NDI_DEF;
		2866
		2867	my $pkt = "msg "
		2868	. $self->{json_coder}->encode (
		2869	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2870	);
		2871
		2872	# try lzf for large packets
		2873	$pkt = "lzf " . Compress::LZF::compress $pkt
		2874	if 1024 <= length $pkt and $self->{can_lzf};
		2875
		2876	# split very large packets
		2877	if (8192 < length $pkt and $self->{can_lzf}) {
		2878	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2879	$pkt = "frag";
		2880	}
		2881
		2882	$self->send_packet ($pkt);
		2883	}
		2884
		2885	=item $client->ext_msg ($type, @msg)
		2886
		2887	Sends an ext event to the client.
		2888
		2889	=cut
		2890
		2891	sub cf::client::ext_msg($$@) {
		2892	my ($self, $type, @msg) = @_;
		2893
		2894	if ($self->extcmd == 2) {
		2895	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2896	} elsif ($self->extcmd == 1) { # TODO: remove
		2897	push @msg, msgtype => "event_$type";
		2898	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2899	}
		2900	}
		2901
		2902	=item $client->ext_reply ($msgid, @msg)
		2903
		2904	Sends an ext reply to the client.
		2905
		2906	=cut
		2907
		2908	sub cf::client::ext_reply($$@) {
		2909	my ($self, $id, @msg) = @_;
		2910
		2911	if ($self->extcmd == 2) {
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2913	} elsif ($self->extcmd == 1) {
		2914	#TODO: version 1, remove
		2915	unshift @msg, msgtype => "reply", msgid => $id;
		2916	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2917	}
		2918	}
1684		2919
1685	=item $success = $client->query ($flags, "text", \&cb)	2920	=item $success = $client->query ($flags, "text", \&cb)
1686		2921
1687	Queues a query to the client, calling the given callback with	2922	Queues a query to the client, calling the given callback with
1688	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2923	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1689	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2924	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1690		2925
1691	Queries can fail, so check the return code. Or don't, as queries will become	2926	Queries can fail, so check the return code. Or don't, as queries will
1692	reliable at some point in the future.	2927	become reliable at some point in the future.
1693		2928
1694	=cut	2929	=cut
1695		2930
1696	sub cf::client::query {	2931	sub cf::client::query {
1697	my ($self, $flags, $text, $cb) = @_;	2932	my ($self, $flags, $text, $cb) = @_;
…		…
1705	utf8::encode $text;	2940	utf8::encode $text;
1706	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2941	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1707		2942
1708	$self->send_packet ($self->{query_queue}[0][0])	2943	$self->send_packet ($self->{query_queue}[0][0])
1709	if @{ $self->{query_queue} } == 1;	2944	if @{ $self->{query_queue} } == 1;
		2945
		2946	1
1710	}	2947	}
1711		2948
1712	cf::client->attach (	2949	cf::client->attach (
		2950	on_connect => sub {
		2951	my ($ns) = @_;
		2952
		2953	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2954	},
1713	on_reply => sub {	2955	on_reply => sub {
1714	my ($ns, $msg) = @_;	2956	my ($ns, $msg) = @_;
1715		2957
1716	# this weird shuffling is so that direct followup queries	2958	# this weird shuffling is so that direct followup queries
1717	# get handled first	2959	# get handled first
1718	my $queue = delete $ns->{query_queue}	2960	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that can happen, but we saw a crash here	2961	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		2962
1721	(shift @$queue)->[1]->($msg);	2963	(shift @$queue)->[1]->($msg);
		2964	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722		2965
1723	push @{ $ns->{query_queue} }, @$queue;	2966	push @{ $ns->{query_queue} }, @$queue;
1724		2967
1725	if (@{ $ns->{query_queue} } == @$queue) {	2968	if (@{ $ns->{query_queue} } == @$queue) {
1726	if (@$queue) {	2969	if (@$queue) {
…		…
1728	} else {	2971	} else {
1729	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2972	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1730	}	2973	}
1731	}	2974	}
1732	},	2975	},
		2976	on_exticmd => sub {
		2977	my ($ns, $buf) = @_;
		2978
		2979	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2980
		2981	if (ref $msg) {
		2982	my ($type, $reply, @payload) =
		2983	"ARRAY" eq ref $msg
		2984	? @$msg
		2985	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2986
		2987	my @reply;
		2988
		2989	if (my $cb = $EXTICMD{$type}) {
		2990	@reply = $cb->($ns, @payload);
		2991	}
		2992
		2993	$ns->ext_reply ($reply, @reply)
		2994	if $reply;
		2995
		2996	} else {
		2997	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2998	}
		2999
		3000	cf::override;
		3001	},
1733	);	3002	);
1734		3003
1735	=item $client->coro (\&cb)	3004	=item $client->async (\&cb)
1736		3005
1737	Create a new coroutine, running the specified callback. The coroutine will	3006	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	3007	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	3008	or loss of connection).
1740		3009
1741	=cut	3010	=cut
1742		3011
1743	sub cf::client::coro {	3012	sub cf::client::async {
1744	my ($self, $cb) = @_;	3013	my ($self, $cb) = @_;
1745		3014
1746	my $coro = &cf::async ($cb);	3015	my $coro = &Coro::async ($cb);
1747		3016
1748	$coro->on_destroy (sub {	3017	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	3018	delete $self->{_coro}{$coro+0};
1750	});	3019	});
1751		3020
…		…
1778	our $safe = new Safe "safe";	3047	our $safe = new Safe "safe";
1779	our $safe_hole = new Safe::Hole;	3048	our $safe_hole = new Safe::Hole;
1780		3049
1781	$SIG{FPE} = 'IGNORE';	3050	$SIG{FPE} = 'IGNORE';
1782		3051
1783	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3052	$safe->permit_only (Opcode::opset qw(
		3053	:base_core :base_mem :base_orig :base_math
		3054	grepstart grepwhile mapstart mapwhile
		3055	sort time
		3056	));
1784		3057
1785	# here we export the classes and methods available to script code	3058	# here we export the classes and methods available to script code
1786		3059
1787	=pod	3060	=pod
1788		3061
1789	The following fucntions and emthods are available within a safe environment:	3062	The following functions and methods are available within a safe environment:
1790		3063
1791	cf::object contr pay_amount pay_player map	3064	cf::object
		3065	contr pay_amount pay_player map x y force_find force_add destroy
		3066	insert remove name archname title slaying race decrease split
		3067	value
		3068
1792	cf::object::player player	3069	cf::object::player
1793	cf::player peaceful	3070	player
1794	cf::map trigger	3071
		3072	cf::player
		3073	peaceful
		3074
		3075	cf::map
		3076	trigger
1795		3077
1796	=cut	3078	=cut
1797		3079
1798	for (	3080	for (
1799	["cf::object" => qw(contr pay_amount pay_player map)],	3081	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3082	insert remove inv nrof name archname title slaying race
		3083	decrease split destroy change_exp value msg lore send_msg)],
1800	["cf::object::player" => qw(player)],	3084	["cf::object::player" => qw(player)],
1801	["cf::player" => qw(peaceful)],	3085	["cf::player" => qw(peaceful send_msg)],
1802	["cf::map" => qw(trigger)],	3086	["cf::map" => qw(trigger)],
1803	) {	3087	) {
1804	no strict 'refs';	3088	no strict 'refs';
1805	my ($pkg, @funs) = @$_;	3089	my ($pkg, @funs) = @$_;
1806	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3090	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1823	my ($code, %vars) = @_;	3107	my ($code, %vars) = @_;
1824		3108
1825	my $qcode = $code;	3109	my $qcode = $code;
1826	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3110	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1827	$qcode =~ s/\n/\\n/g;	3111	$qcode =~ s/\n/\\n/g;
		3112
		3113	%vars = (_dummy => 0) unless %vars;
1828		3114
1829	local $_;	3115	local $_;
1830	local @safe::cf::_safe_eval_args = values %vars;	3116	local @safe::cf::_safe_eval_args = values %vars;
1831		3117
1832	my $eval =	3118	my $eval =
…		…
1875	=back	3161	=back
1876		3162
1877	=cut	3163	=cut
1878		3164
1879	#############################################################################	3165	#############################################################################
		3166	# the server's init and main functions
1880		3167
1881	=head2 EXTENSION DATABASE SUPPORT	3168	sub load_facedata($) {
		3169	my ($path) = @_;
1882		3170
1883	Crossfire maintains a very simple database for extension use. It can	3171	# HACK to clear player env face cache, we need some signal framework
1884	currently store anything that can be serialised using Storable, which	3172	# for this (global event?)
1885	excludes objects.	3173	%ext::player_env::MUSIC_FACE_CACHE = ();
1886		3174
1887	The parameter C<$family> should best start with the name of the extension	3175	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1888	using it, it should be unique.
1889		3176
1890	=over 4	3177	warn "loading facedata from $path\n";
1891		3178
1892	=item $hashref = cf::db_get $family	3179	my $facedata;
		3180	0 < aio_load $path, $facedata
		3181	or die "$path: $!";
1893		3182
1894	Return a hashref for use by the extension C<$family>, which can be	3183	$facedata = Coro::Storable::thaw $facedata;
1895	modified. After modifications, you have to call C<cf::db_dirty> or
1896	C<cf::db_sync>.
1897		3184
1898	=item $value = cf::db_get $family => $key	3185	$facedata->{version} == 2
		3186	or cf::cleanup "$path: version mismatch, cannot proceed.";
1899		3187
1900	Returns a single value from the database	3188	# patch in the exptable
1901		3189	$facedata->{resource}{"res/exp_table"} = {
1902	=item cf::db_put $family => $hashref	3190	type => FT_RSRC,
1903		3191	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1904	Stores the given family hashref into the database. Updates are delayed, if
1905	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906
1907	=item cf::db_put $family => $key => $value
1908
1909	Stores the given C<$value> in the family hash. Updates are delayed, if you
1910	want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_dirty
1913
1914	Marks the database as dirty, to be updated at a later time.
1915
1916	=item cf::db_sync
1917
1918	Immediately write the database to disk I<if it is dirty>.
1919
1920	=cut
1921
1922	our $DB;
1923
1924	{
1925	my $path = cf::localdir . "/database.pst";
1926
1927	sub db_load() {
1928	$DB = stat $path ? Storable::retrieve $path : { };
1929	}
1930
1931	my $pid;
1932
1933	sub db_save() {
1934	waitpid $pid, 0 if $pid;
1935	if (0 == ($pid = fork)) {
1936	$DB->{_meta}{version} = 1;
1937	Storable::nstore $DB, "$path~";
1938	rename "$path~", $path;
1939	cf::_exit 0 if defined $pid;
1940	}
1941	}
1942
1943	my $dirty;
1944
1945	sub db_sync() {
1946	db_save if $dirty;
1947	undef $dirty;
1948	}
1949
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;
1952	});	3192	};
		3193	cf::cede_to_tick;
1953		3194
1954	sub db_dirty() {
1955	$dirty = 1;
1956	$idle->start;
1957	}	3195	{
		3196	my $faces = $facedata->{faceinfo};
1958		3197
1959	sub db_get($;$) {	3198	while (my ($face, $info) = each %$faces) {
1960	@_ >= 2	3199	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1961	? $DB->{$_[0]}{$_[1]}
1962	: ($DB->{$_[0]} ||= { })
1963	}
1964		3200
1965	sub db_put($$;$) {	3201	cf::face::set_visibility $idx, $info->{visibility};
1966	if (@_ >= 3) {	3202	cf::face::set_magicmap $idx, $info->{magicmap};
1967	$DB->{$_[0]}{$_[1]} = $_[2];	3203	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1968	} else {	3204	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1969	$DB->{$_[0]} = $_[1];
1970	}
1971	db_dirty;
1972	}
1973		3205
1974	cf::global->attach (	3206	cf::cede_to_tick;
1975	prio => 10000,
1976	on_cleanup => sub {
1977	db_sync;
1978	},	3207	}
1979	);
1980	}
1981		3208
1982	#############################################################################	3209	while (my ($face, $info) = each %$faces) {
1983	# the server's main()	3210	next unless $info->{smooth};
1984		3211
1985	sub cfg_load {	3212	my $idx = cf::face::find $face
		3213	or next;
		3214
		3215	if (my $smooth = cf::face::find $info->{smooth}) {
		3216	cf::face::set_smooth $idx, $smooth;
		3217	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3218	} else {
		3219	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3220	}
		3221
		3222	cf::cede_to_tick;
		3223	}
		3224	}
		3225
		3226	{
		3227	my $anims = $facedata->{animinfo};
		3228
		3229	while (my ($anim, $info) = each %$anims) {
		3230	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3231	cf::cede_to_tick;
		3232	}
		3233
		3234	cf::anim::invalidate_all; # d'oh
		3235	}
		3236
		3237	{
		3238	# TODO: for gcfclient pleasure, we should give resources
		3239	# that gcfclient doesn't grok a >10000 face index.
		3240	my $res = $facedata->{resource};
		3241
		3242	while (my ($name, $info) = each %$res) {
		3243	if (defined $info->{type}) {
		3244	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3245	my $data;
		3246
		3247	if ($info->{type} & 1) {
		3248	# prepend meta info
		3249
		3250	my $meta = $enc->encode ({
		3251	name => $name,
		3252	%{ $info->{meta} || {} },
		3253	});
		3254
		3255	$data = pack "(w/a*)*", $meta, $info->{data};
		3256	} else {
		3257	$data = $info->{data};
		3258	}
		3259
		3260	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3261	cf::face::set_type $idx, $info->{type};
		3262	} else {
		3263	$RESOURCE{$name} = $info;
		3264	}
		3265
		3266	cf::cede_to_tick;
		3267	}
		3268	}
		3269
		3270	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3271
		3272	1
		3273	}
		3274
		3275	cf::global->attach (on_resource_update => sub {
		3276	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3277	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3278
		3279	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3280	my $sound = $soundconf->{compat}[$_]
		3281	or next;
		3282
		3283	my $face = cf::face::find "sound/$sound->[1]";
		3284	cf::sound::set $sound->[0] => $face;
		3285	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3286	}
		3287
		3288	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3289	my $face = cf::face::find "sound/$v";
		3290	cf::sound::set $k => $face;
		3291	}
		3292	}
		3293	});
		3294
		3295	register_exticmd fx_want => sub {
		3296	my ($ns, $want) = @_;
		3297
		3298	while (my ($k, $v) = each %$want) {
		3299	$ns->fx_want ($k, $v);
		3300	}
		3301	};
		3302
		3303	sub load_resource_file($) {
		3304	my $guard = lock_acquire "load_resource_file";
		3305
		3306	my $status = load_resource_file_ $_[0];
		3307	get_slot 0.1, 100;
		3308	cf::arch::commit_load;
		3309
		3310	$status
		3311	}
		3312
		3313	sub reload_regions {
		3314	# HACK to clear player env face cache, we need some signal framework
		3315	# for this (global event?)
		3316	%ext::player_env::MUSIC_FACE_CACHE = ();
		3317
		3318	load_resource_file "$MAPDIR/regions"
		3319	or die "unable to load regions file\n";
		3320
		3321	for (cf::region::list) {
		3322	$_->{match} = qr/$_->{match}/
		3323	if exists $_->{match};
		3324	}
		3325	}
		3326
		3327	sub reload_facedata {
		3328	load_facedata "$DATADIR/facedata"
		3329	or die "unable to load facedata\n";
		3330	}
		3331
		3332	sub reload_archetypes {
		3333	load_resource_file "$DATADIR/archetypes"
		3334	or die "unable to load archetypes\n";
		3335	}
		3336
		3337	sub reload_treasures {
		3338	load_resource_file "$DATADIR/treasures"
		3339	or die "unable to load treasurelists\n";
		3340	}
		3341
		3342	sub reload_resources {
		3343	warn "reloading resource files...\n";
		3344
		3345	reload_facedata;
		3346	reload_archetypes;
		3347	reload_regions;
		3348	reload_treasures;
		3349
		3350	warn "finished reloading resource files\n";
		3351	}
		3352
		3353	sub reload_config {
1986	open my $fh, "<:utf8", cf::confdir . "/config"	3354	open my $fh, "<:utf8", "$CONFDIR/config"
1987	or return;	3355	or return;
1988		3356
1989	local $/;	3357	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	3358	*CFG = YAML::Load <$fh>;
		3359
		3360	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3361
		3362	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3363	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3364
		3365	if (exists $CFG{mlockall}) {
		3366	eval {
		3367	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3368	and die "WARNING: m(un)lockall failed: $!\n";
		3369	};
		3370	warn $@ if $@;
		3371	}
		3372	}
		3373
		3374	sub pidfile() {
		3375	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3376	or die "$PIDFILE: $!";
		3377	flock $fh, &Fcntl::LOCK_EX
		3378	or die "$PIDFILE: flock: $!";
		3379	$fh
		3380	}
		3381
		3382	# make sure only one server instance is running at any one time
		3383	sub atomic {
		3384	my $fh = pidfile;
		3385
		3386	my $pid = <$fh>;
		3387	kill 9, $pid if $pid > 0;
		3388
		3389	seek $fh, 0, 0;
		3390	print $fh $$;
1991	}	3391	}
1992		3392
1993	sub main {	3393	sub main {
		3394	cf::init_globals; # initialise logging
		3395
		3396	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3397	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3398	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3399	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3400
		3401	cf::init_experience;
		3402	cf::init_anim;
		3403	cf::init_attackmess;
		3404	cf::init_dynamic;
		3405
		3406	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3407
1994	# we must not ever block the main coroutine	3408	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	3409	local $Coro::idle = sub {
1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3410	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997	(Coro::unblock_sub {	3411	(async {
1998	Event::one_event;	3412	$Coro::current->{desc} = "IDLE BUG HANDLER";
1999	})->();	3413	EV::loop EV::LOOP_ONESHOT;
		3414	})->prio (Coro::PRIO_MAX);
2000	};	3415	};
2001		3416
2002	cfg_load;	3417	evthread_start IO::AIO::poll_fileno;
2003	db_load;	3418
		3419	cf::sync_job {
		3420	reload_resources;
		3421	reload_config;
		3422	db_init;
		3423
		3424	cf::load_settings;
		3425	cf::load_materials;
		3426	cf::init_uuid;
		3427	cf::init_signals;
		3428	cf::init_commands;
		3429	cf::init_skills;
		3430
		3431	cf::init_beforeplay;
		3432
		3433	atomic;
		3434
2004	load_extensions;	3435	load_extensions;
		3436
		3437	utime time, time, $RUNTIMEFILE;
		3438
		3439	# no (long-running) fork's whatsoever before this point(!)
		3440	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3441
		3442	(pop @POST_INIT)->(0) while @POST_INIT;
		3443	};
		3444
2005	Event::loop;	3445	EV::loop;
2006	}	3446	}
2007		3447
2008	#############################################################################	3448	#############################################################################
2009	# initialisation	3449	# initialisation and cleanup
2010		3450
		3451	# install some emergency cleanup handlers
		3452	BEGIN {
		3453	our %SIGWATCHER = ();
		3454	for my $signal (qw(INT HUP TERM)) {
		3455	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3456	cf::cleanup "SIG$signal";
		3457	};
		3458	}
		3459	}
		3460
		3461	sub write_runtime_sync {
		3462	# first touch the runtime file to show we are still running:
		3463	# the fsync below can take a very very long time.
		3464
		3465	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3466
		3467	my $guard = cf::lock_acquire "write_runtime";
		3468
		3469	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3470	or return;
		3471
		3472	my $value = $cf::RUNTIME + 90 + 10;
		3473	# 10 is the runtime save interval, for a monotonic clock
		3474	# 60 allows for the watchdog to kill the server.
		3475
		3476	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3477	and return;
		3478
		3479	# always fsync - this file is important
		3480	aio_fsync $fh
		3481	and return;
		3482
		3483	# touch it again to show we are up-to-date
		3484	aio_utime $fh, undef, undef;
		3485
		3486	close $fh
		3487	or return;
		3488
		3489	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3490	and return;
		3491
		3492	warn "runtime file written.\n";
		3493
		3494	1
		3495	}
		3496
		3497	our $uuid_lock;
		3498	our $uuid_skip;
		3499
		3500	sub write_uuid_sync($) {
		3501	$uuid_skip ||= $_[0];
		3502
		3503	return if $uuid_lock;
		3504	local $uuid_lock = 1;
		3505
		3506	my $uuid = "$LOCALDIR/uuid";
		3507
		3508	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3509	or return;
		3510
		3511	my $value = uuid_seq uuid_cur;
		3512
		3513	unless ($value) {
		3514	warn "cowardly refusing to write zero uuid value!\n";
		3515	return;
		3516	}
		3517
		3518	my $value = uuid_str $value + $uuid_skip;
		3519	$uuid_skip = 0;
		3520
		3521	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3522	and return;
		3523
		3524	# always fsync - this file is important
		3525	aio_fsync $fh
		3526	and return;
		3527
		3528	close $fh
		3529	or return;
		3530
		3531	aio_rename "$uuid~", $uuid
		3532	and return;
		3533
		3534	warn "uuid file written ($value).\n";
		3535
		3536	1
		3537
		3538	}
		3539
		3540	sub write_uuid($$) {
		3541	my ($skip, $sync) = @_;
		3542
		3543	$sync ? write_uuid_sync $skip
		3544	: async { write_uuid_sync $skip };
		3545	}
		3546
		3547	sub emergency_save() {
		3548	my $freeze_guard = cf::freeze_mainloop;
		3549
		3550	warn "emergency_perl_save: enter\n";
		3551
		3552	cf::sync_job {
		3553	# this is a trade-off: we want to be very quick here, so
		3554	# save all maps without fsync, and later call a global sync
		3555	# (which in turn might be very very slow)
		3556	local $USE_FSYNC = 0;
		3557
		3558	# use a peculiar iteration method to avoid tripping on perl
		3559	# refcount bugs in for. also avoids problems with players
		3560	# and maps saved/destroyed asynchronously.
		3561	warn "emergency_perl_save: begin player save\n";
		3562	for my $login (keys %cf::PLAYER) {
		3563	my $pl = $cf::PLAYER{$login} or next;
		3564	$pl->valid or next;
		3565	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3566	$pl->save;
		3567	}
		3568	warn "emergency_perl_save: end player save\n";
		3569
		3570	warn "emergency_perl_save: begin map save\n";
		3571	for my $path (keys %cf::MAP) {
		3572	my $map = $cf::MAP{$path} or next;
		3573	$map->valid or next;
		3574	$map->save;
		3575	}
		3576	warn "emergency_perl_save: end map save\n";
		3577
		3578	warn "emergency_perl_save: begin database checkpoint\n";
		3579	BDB::db_env_txn_checkpoint $DB_ENV;
		3580	warn "emergency_perl_save: end database checkpoint\n";
		3581
		3582	warn "emergency_perl_save: begin write uuid\n";
		3583	write_uuid_sync 1;
		3584	warn "emergency_perl_save: end write uuid\n";
		3585	};
		3586
		3587	warn "emergency_perl_save: starting sync()\n";
		3588	IO::AIO::aio_sync sub {
		3589	warn "emergency_perl_save: finished sync()\n";
		3590	};
		3591
		3592	warn "emergency_perl_save: leave\n";
		3593	}
		3594
		3595	sub post_cleanup {
		3596	my ($make_core) = @_;
		3597
		3598	warn Carp::longmess "post_cleanup backtrace"
		3599	if $make_core;
		3600
		3601	my $fh = pidfile;
		3602	unlink $PIDFILE if <$fh> == $$;
		3603	}
		3604
		3605	# a safer delete_package, copied from Symbol
		3606	sub clear_package($) {
		3607	my $pkg = shift;
		3608
		3609	# expand to full symbol table name if needed
		3610	unless ($pkg =~ /^main::.*::$/) {
		3611	$pkg = "main$pkg" if $pkg =~ /^::/;
		3612	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3613	$pkg .= '::' unless $pkg =~ /::$/;
		3614	}
		3615
		3616	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3617	my $stem_symtab = *{$stem}{HASH};
		3618
		3619	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3620	or return;
		3621
		3622	# clear all symbols
		3623	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3624	for my $name (keys %$leaf_symtab) {
		3625	_gv_clear *{"$pkg$name"};
		3626	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3627	}
		3628	warn "cleared package $pkg\n";#d#
		3629	}
		3630
2011	sub reload() {	3631	sub do_reload_perl() {
2012	# can/must only be called in main	3632	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	3633	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	3634	warn "can only reload from main coroutine";
2015	return;	3635	return;
2016	}	3636	}
2017		3637
		3638	return if $RELOAD++;
		3639
		3640	my $t1 = EV::time;
		3641
		3642	while ($RELOAD) {
2018	warn "reloading...";	3643	warn "reloading...";
2019		3644
2020	local $FREEZE = 1;	3645	warn "entering sync_job";
		3646
		3647	cf::sync_job {
		3648	cf::write_runtime_sync; # external watchdog should not bark
2021	cf::emergency_save;	3649	cf::emergency_save;
		3650	cf::write_runtime_sync; # external watchdog should not bark
2022		3651
2023	eval {	3652	warn "syncing database to disk";
		3653	BDB::db_env_txn_checkpoint $DB_ENV;
		3654
2024	# if anything goes wrong in here, we should simply crash as we already saved	3655	# if anything goes wrong in here, we should simply crash as we already saved
2025		3656
2026	# cancel all watchers	3657	warn "flushing outstanding aio requests";
2027	for (Event::all_watchers) {	3658	while (IO::AIO::nreqs || BDB::nreqs) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	3659	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2029	}
2030
2031	# cancel all extension coros
2032	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();
2034
2035	# unload all extensions
2036	for (@exts) {
2037	warn "unloading <$_>";
2038	unload_extension $_;
2039	}
2040
2041	# unload all modules loaded from $LIBDIR
2042	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044
2045	warn "removing <$k>";
2046	delete $INC{$k};
2047
2048	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;
2050
2051	if (my $cb = $k->can ("unload_module")) {
2052	$cb->();
2053	}	3660	}
2054		3661
2055	Symbol::delete_package $k;	3662	warn "cancelling all extension coros";
		3663	$_->cancel for values %EXT_CORO;
		3664	%EXT_CORO = ();
		3665
		3666	warn "removing commands";
		3667	%COMMAND = ();
		3668
		3669	warn "removing ext/exti commands";
		3670	%EXTCMD = ();
		3671	%EXTICMD = ();
		3672
		3673	warn "unloading/nuking all extensions";
		3674	for my $pkg (@EXTS) {
		3675	warn "... unloading $pkg";
		3676
		3677	if (my $cb = $pkg->can ("unload")) {
		3678	eval {
		3679	$cb->($pkg);
		3680	1
		3681	} or warn "$pkg unloaded, but with errors: $@";
		3682	}
		3683
		3684	warn "... clearing $pkg";
		3685	clear_package $pkg;
2056	}	3686	}
2057		3687
2058	# sync database to disk	3688	warn "unloading all perl modules loaded from $LIBDIR";
2059	cf::db_sync;	3689	while (my ($k, $v) = each %INC) {
2060	IO::AIO::flush;	3690	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3691
		3692	warn "... unloading $k";
		3693	delete $INC{$k};
		3694
		3695	$k =~ s/\.pm$//;
		3696	$k =~ s/\//::/g;
		3697
		3698	if (my $cb = $k->can ("unload_module")) {
		3699	$cb->();
		3700	}
		3701
		3702	clear_package $k;
		3703	}
		3704
2062	# get rid of safe::, as good as possible	3705	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	3706	clear_package "safe::$_"
2064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3707	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065		3708
2066	# remove register_script_function callbacks	3709	warn "unloading cf.pm \"a bit\"";
2067	# TODO
2068
2069	# unload cf.pm "a bit"
2070	delete $INC{"cf.pm"};	3710	delete $INC{"cf.pm"};
		3711	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2071		3712
2072	# don't, removes xs symbols, too,	3713	# don't, removes xs symbols, too,
2073	# and global variables created in xs	3714	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	3715	#clear_package __PACKAGE__;
2075		3716
2076	# reload cf.pm	3717	warn "unload completed, starting to reload now";
		3718
2077	warn "reloading cf.pm";	3719	warn "reloading cf.pm";
2078	require cf;	3720	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3721	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		3722
2081	# load config and database again	3723	warn "loading config and database again";
2082	cf::cfg_load;	3724	cf::reload_config;
2083	cf::db_load;
2084		3725
2085	# load extensions
2086	warn "load extensions";	3726	warn "loading extensions";
2087	cf::load_extensions;	3727	cf::load_extensions;
2088		3728
2089	# reattach attachments to objects	3729	if ($REATTACH_ON_RELOAD) {
		3730	warn "reattaching attachments to objects/players";
		3731	_global_reattach; # objects, sockets
		3732	warn "reattaching attachments to maps";
		3733	reattach $_ for values %MAP;
		3734	warn "reattaching attachments to players";
		3735	reattach $_ for values %PLAYER;
		3736	}
		3737
		3738	warn "running post_init jobs";
		3739	(pop @POST_INIT)->(1) while @POST_INIT;
		3740
		3741	warn "leaving sync_job";
		3742
		3743	1
		3744	} or do {
		3745	warn $@;
		3746	cf::cleanup "error while reloading, exiting.";
		3747	};
		3748
2090	warn "reattach";	3749	warn "reloaded";
2091	_global_reattach;	3750	--$RELOAD;
		3751	}
		3752
		3753	$t1 = EV::time - $t1;
		3754	warn "reload completed in ${t1}s\n";
		3755	};
		3756
		3757	our $RELOAD_WATCHER; # used only during reload
		3758
		3759	sub reload_perl() {
		3760	# doing reload synchronously and two reloads happen back-to-back,
		3761	# coro crashes during coro_state_free->destroy here.
		3762
		3763	$RELOAD_WATCHER ||= cf::async {
		3764	Coro::AIO::aio_wait cache_extensions;
		3765
		3766	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3767	do_reload_perl;
		3768	undef $RELOAD_WATCHER;
		3769	};
2092	};	3770	};
2093
2094	if ($@) {
2095	warn $@;
2096	warn "error while reloading, exiting.";
2097	exit 1;
2098	}
2099
2100	warn "reloaded successfully";
2101	};
2102
2103	#############################################################################
2104
2105	unless ($LINK_MAP) {
2106	$LINK_MAP = cf::map::new;
2107
2108	$LINK_MAP->width (41);
2109	$LINK_MAP->height (41);
2110	$LINK_MAP->alloc;
2111	$LINK_MAP->path ("{link}");
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,
2118	cb => sub {
2119	$_[0]->w->cancel;
2120
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});
2139
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}	3771	}
2145
2146	register "<global>", __PACKAGE__;
2147		3772
2148	register_command "reload" => sub {	3773	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	3774	my ($who, $arg) = @_;
2150		3775
2151	if ($who->flag (FLAG_WIZ)) {	3776	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");
2153	reload;
2154	$who->message ("end of reload.");	3777	$who->message ("reloading server.");
		3778	async {
		3779	$Coro::current->{desc} = "perl_reload";
		3780	reload_perl;
		3781	};
2155	}	3782	}
2156	};	3783	};
2157		3784
2158	unshift @INC, $LIBDIR;	3785	unshift @INC, $LIBDIR;
2159		3786
2160	$TICK_WATCHER = Event->timer (	3787	my $bug_warning = 0;
2161	reentrant => 0,	3788
2162	prio => 0,	3789	our @WAIT_FOR_TICK;
2163	at => $NEXT_TICK || $TICK,	3790	our @WAIT_FOR_TICK_BEGIN;
2164	data => WF_AUTOCANCEL,	3791
2165	cb => sub {	3792	sub wait_for_tick {
2166	unless ($FREEZE) {	3793	return if tick_inhibit || $Coro::current == $Coro::main;
		3794
		3795	my $signal = new Coro::Signal;
		3796	push @WAIT_FOR_TICK, $signal;
		3797	$signal->wait;
		3798	}
		3799
		3800	sub wait_for_tick_begin {
		3801	return if tick_inhibit || $Coro::current == $Coro::main;
		3802
		3803	my $signal = new Coro::Signal;
		3804	push @WAIT_FOR_TICK_BEGIN, $signal;
		3805	$signal->wait;
		3806	}
		3807
		3808	sub tick {
		3809	if ($Coro::current != $Coro::main) {
		3810	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3811	unless ++$bug_warning > 10;
		3812	return;
		3813	}
		3814
2167	cf::server_tick; # one server iteration	3815	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;
2169	}
2170		3816
2171	$NEXT_TICK += $TICK;	3817	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2172		3818	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2173	# if we are delayed by four ticks or more, skip them all	3819	Coro::async_pool {
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3820	$Coro::current->{desc} = "runtime saver";
2175
2176	$TICK_WATCHER->at ($NEXT_TICK);
2177	$TICK_WATCHER->start;
2178	},
2179	);
2180
2181	IO::AIO::max_poll_time $TICK * 0.2;
2182
2183	Event->io (
2184	fd => IO::AIO::poll_fileno,
2185	poll => 'r',
2186	prio => 5,
2187	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,
2189	);
2190
2191	Event->timer (
2192	data => WF_AUTOCANCEL,
2193	after => 0,
2194	interval => 10,
2195	cb => sub {
2196	(Coro::unblock_sub {
2197	write_runtime	3821	write_runtime_sync
2198	or warn "ERROR: unable to write runtime file: $!";	3822	or warn "ERROR: unable to write runtime file: $!";
2199	})->();	3823	};
2200	},	3824	}
2201	);	3825
		3826	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3827	$sig->send;
		3828	}
		3829	while (my $sig = shift @WAIT_FOR_TICK) {
		3830	$sig->send;
		3831	}
		3832
		3833	$LOAD = ($NOW - $TICK_START) / $TICK;
		3834	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3835
		3836	if (0) {
		3837	if ($NEXT_TICK) {
		3838	my $jitter = $TICK_START - $NEXT_TICK;
		3839	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3840	warn "jitter $JITTER\n";#d#
		3841	}
		3842	}
		3843	}
		3844
		3845	{
		3846	# configure BDB
		3847
		3848	BDB::min_parallel 8;
		3849	BDB::max_poll_reqs $TICK * 0.1;
		3850	$AnyEvent::BDB::WATCHER->priority (1);
		3851
		3852	unless ($DB_ENV) {
		3853	$DB_ENV = BDB::db_env_create;
		3854	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3855	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3856	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3857	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3858	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3859
		3860	cf::sync_job {
		3861	eval {
		3862	BDB::db_env_open
		3863	$DB_ENV,
		3864	$BDBDIR,
		3865	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3866	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3867	0666;
		3868
		3869	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3870	};
		3871
		3872	cf::cleanup "db_env_open(db): $@" if $@;
		3873	};
		3874	}
		3875
		3876	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3877	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3878	};
		3879	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3880	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3881	};
		3882	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3883	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3884	};
		3885	}
		3886
		3887	{
		3888	# configure IO::AIO
		3889
		3890	IO::AIO::min_parallel 8;
		3891	IO::AIO::max_poll_time $TICK * 0.1;
		3892	undef $AnyEvent::AIO::WATCHER;
		3893	}
		3894
		3895	my $_log_backtrace;
		3896
		3897	sub _log_backtrace {
		3898	my ($msg, @addr) = @_;
		3899
		3900	$msg =~ s/\n//;
		3901
		3902	# limit the # of concurrent backtraces
		3903	if ($_log_backtrace < 2) {
		3904	++$_log_backtrace;
		3905	my $perl_bt = Carp::longmess $msg;
		3906	async {
		3907	$Coro::current->{desc} = "abt $msg";
		3908
		3909	my @bt = fork_call {
		3910	@addr = map { sprintf "%x", $_ } @addr;
		3911	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3912	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3913	or die "addr2line: $!";
		3914
		3915	my @funcs;
		3916	my @res = <$fh>;
		3917	chomp for @res;
		3918	while (@res) {
		3919	my ($func, $line) = splice @res, 0, 2, ();
		3920	push @funcs, "[$func] $line";
		3921	}
		3922
		3923	@funcs
		3924	};
		3925
		3926	LOG llevInfo, "[ABT] $perl_bt\n";
		3927	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3928	LOG llevInfo, "[ABT] $_\n" for @bt;
		3929	--$_log_backtrace;
		3930	};
		3931	} else {
		3932	LOG llevInfo, "[ABT] $msg\n";
		3933	LOG llevInfo, "[ABT] [suppressed]\n";
		3934	}
		3935	}
		3936
		3937	# load additional modules
		3938	require "cf/$_.pm" for @EXTRA_MODULES;
2202		3939
2203	END { cf::emergency_save }	3940	END { cf::emergency_save }
2204		3941
2205	1	3942	1
2206		3943

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