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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.443 by root, Sun Aug 31 10:05:26 2008 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 "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
13	use Coro 3.3 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
20	use Data::Dumper;	53	use Data::Dumper;
21	use Digest::MD5;	54	use Digest::MD5;
22	use Fcntl;	55	use Fcntl;
		56	use YAML ();
23	use IO::AIO 2.32 ();	57	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
26		61
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
		63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		71
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	72	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		73
36	our %COMMAND = ();	74	our %COMMAND = ();
37	our %COMMAND_TIME = ();	75	our %COMMAND_TIME = ();
38		76
39	our @EXTS = (); # list of extension package names	77	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	78	our %EXTCMD = ();
		79	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	80	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	81	our %EXT_MAP = (); # pluggable maps
43		82
		83	our $RELOAD; # number of reloads so far
44	our @EVENT;	84	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		85
47	our $TICK = MAX_TIME * 1e-6;	86	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	87	our $DATADIR = datadir;
		88	our $LIBDIR = "$DATADIR/ext";
		89	our $PODDIR = "$DATADIR/pod";
		90	our $MAPDIR = "$DATADIR/" . mapdir;
		91	our $LOCALDIR = localdir;
		92	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		93	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		94	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		95	our $RANDOMDIR = "$LOCALDIR/random";
		96	our $BDBDIR = "$LOCALDIR/db";
		97	our %RESOURCE;
		98
		99	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		100	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	101	our $NEXT_TICK;
50	our $NOW;	102	our $USE_FSYNC = 1; # use fsync to write maps - default off
		103
		104	our $BDB_DEADLOCK_WATCHER;
		105	our $BDB_CHECKPOINT_WATCHER;
		106	our $BDB_TRICKLE_WATCHER;
		107	our $DB_ENV;
51		108
52	our %CFG;	109	our %CFG;
53		110
54	our $UPTIME; $UPTIME ||= time;	111	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	112	our $RUNTIME;
		113	our $NOW;
56		114
57	our %PLAYER; # all users	115	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	116	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	117	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		118
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	119	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	120	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		121
		122	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		123	our $LOADAVG; # same thing, but with alpha-smoothing
		124	our $JITTER; # average jitter
		125	our $TICK_START; # for load detecting purposes
64		126
65	binmode STDOUT;	127	binmode STDOUT;
66	binmode STDERR;	128	binmode STDERR;
67		129
68	# read virtual server time, if available	130	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	131	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	132	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	133	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	134	$RUNTIME = <$fh> + 0.;
73	}	135	}
74		136
75	mkdir cf::localdir;	137	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	138	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		139
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	140	our $EMERGENCY_POSITION;
		141
		142	sub cf::map::normalise;
84		143
85	#############################################################################	144	#############################################################################
86		145
87	=head2 GLOBAL VARIABLES	146	=head2 GLOBAL VARIABLES
88		147
…		…
95	=item $cf::RUNTIME	154	=item $cf::RUNTIME
96		155
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	156	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	157	every server tick.
99		158
100	=item $cf::LIBDIR	159	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		160	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		161	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		162
102	The perl library directory, where extensions and cf-specific modules can	163	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	164	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		165	unique-items directory, player file directory, random maps directory and
		166	database environment.
104		167
105	=item $cf::NOW	168	=item $cf::NOW
106		169
107	The time of the last (current) server tick.	170	The time of the last (current) server tick.
108		171
109	=item $cf::TICK	172	=item $cf::TICK
110		173
111	The interval between server ticks, in seconds.	174	The interval between server ticks, in seconds.
112		175
		176	=item $cf::LOADAVG
		177
		178	The current CPU load on the server (alpha-smoothed), as a value between 0
		179	(none) and 1 (overloaded), indicating how much time is spent on processing
		180	objects per tick. Healthy values are < 0.5.
		181
		182	=item $cf::LOAD
		183
		184	The raw value load value from the last tick.
		185
113	=item %cf::CFG	186	=item %cf::CFG
114		187
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	188	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	189	from wherever your confdir points to.
117		190
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	191	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		192
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	193	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	194	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	195	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	196
		197	=item @cf::INVOKE_RESULTS
		198
		199	This array contains the results of the last C<invoke ()> call. When
		200	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		201	that call.
124		202
125	=back	203	=back
126		204
127	=cut	205	=cut
128		206
129	BEGIN {	207	BEGIN {
130	*CORE::GLOBAL::warn = sub {	208	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	209	my $msg = join "", @_;
132	utf8::encode $msg;
133		210
134	$msg .= "\n"	211	$msg .= "\n"
135	unless $msg =~ /\n$/;	212	unless $msg =~ /\n$/;
136		213
		214	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		215
137	LOG llevError, $msg;	216	LOG llevError, $msg;
138	};	217	};
139	}	218	}
		219
		220	$Coro::State::DIEHOOK = sub {
		221	return unless $^S eq 0; # "eq", not "=="
		222
		223	if ($Coro::current == $Coro::main) {#d#
		224	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		225	return;#d#
		226	}#d#
		227
		228	# kill coroutine otherwise
		229	warn Carp::longmess $_[0];
		230	Coro::terminate
		231	};
		232
		233	$SIG{__DIE__} = sub { }; #d#?
140		234
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	235	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	236	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	237	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	238	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	239	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		240	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	241	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		242
148	# we bless all objects into (empty) derived classes to force a method lookup	243	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	244	# within the Safe compartment.
150	for my $pkg (qw(	245	for my $pkg (qw(
151	cf::global cf::attachable	246	cf::global cf::attachable
152	cf::object cf::object::player	247	cf::object cf::object::player
153	cf::client cf::player	248	cf::client cf::player
154	cf::arch cf::living	249	cf::arch cf::living
		250	cf::map cf::mapspace
155	cf::map cf::party cf::region	251	cf::party cf::region
156	)) {	252	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	253	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	254	}
160		255
161	$Event::DIED = sub {	256	$EV::DIED = sub {
162	warn "error in event callback: @_";	257	warn "error in event callback: @_";
163	};	258	};
		259
		260	#############################################################################
164		261
165	=head2 UTILITY FUNCTIONS	262	=head2 UTILITY FUNCTIONS
166		263
167	=over 4	264	=over 4
168		265
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	284	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	285	$d
189	} || "[unable to dump $_[0]: '$@']";	286	} || "[unable to dump $_[0]: '$@']";
190	}	287	}
191		288
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	289	=item $ref = cf::decode_json $json
195		290
196	Converts a JSON string into the corresponding perl data structure.	291	Converts a JSON string into the corresponding perl data structure.
197		292
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	293	=item $json = cf::encode_json $ref
206		294
207	Converts a perl data structure into its JSON representation.	295	Converts a perl data structure into its JSON representation.
208		296
209	=cut	297	=cut
210		298
211	sub to_json($) {	299	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	300
213	JSON::Syck::Dump $_[0]	301	sub encode_json($) { $json_coder->encode ($_[0]) }
214	}	302	sub decode_json($) { $json_coder->decode ($_[0]) }
215		303
216	=item cf::lock_wait $string	304	=item cf::lock_wait $string
217		305
218	Wait until the given lock is available. See cf::lock_acquire.	306	Wait until the given lock is available. See cf::lock_acquire.
219		307
…		…
222	Wait until the given lock is available and then acquires it and returns	310	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	311	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	312	for example when the coroutine gets canceled), the lock is automatically
225	returned.	313	returned.
226		314
		315	Locks are *not* recursive, locking from the same coro twice results in a
		316	deadlocked coro.
		317
227	Lock names should begin with a unique identifier (for example, cf::map::find	318	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	319	uses map_find and cf::map::load uses map_load).
229		320
		321	=item $locked = cf::lock_active $string
		322
		323	Return true if the lock is currently active, i.e. somebody has locked it.
		324
230	=cut	325	=cut
231		326
232	our %LOCK;	327	our %LOCK;
		328	our %LOCKER;#d#
233		329
234	sub lock_wait($) {	330	sub lock_wait($) {
235	my ($key) = @_;	331	my ($key) = @_;
		332
		333	if ($LOCKER{$key} == $Coro::current) {#d#
		334	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		335	return;#d#
		336	}#d#
236		337
237	# wait for lock, if any	338	# wait for lock, if any
238	while ($LOCK{$key}) {	339	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	340	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	341	Coro::schedule;
…		…
246		347
247	# wait, to be sure we are not locked	348	# wait, to be sure we are not locked
248	lock_wait $key;	349	lock_wait $key;
249		350
250	$LOCK{$key} = [];	351	$LOCK{$key} = [];
		352	$LOCKER{$key} = $Coro::current;#d#
251		353
252	Coro::guard {	354	Coro::guard {
		355	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	356	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	357	$_->ready for @{ delete $LOCK{$key} };
255	}	358	}
256	}	359	}
257		360
		361	sub lock_active($) {
		362	my ($key) = @_;
		363
		364	! ! $LOCK{$key}
		365	}
		366
258	sub freeze_mainloop {	367	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	368	tick_inhibit_inc;
260		369
261	my $guard = Coro::guard { $TICK_WATCHER->start };	370	Coro::guard \&tick_inhibit_dec;
262	$TICK_WATCHER->stop;	371	}
263	$guard	372
		373	=item cf::periodic $interval, $cb
		374
		375	Like EV::periodic, but randomly selects a starting point so that the actions
		376	get spread over timer.
		377
		378	=cut
		379
		380	sub periodic($$) {
		381	my ($interval, $cb) = @_;
		382
		383	my $start = rand List::Util::min 180, $interval;
		384
		385	EV::periodic $start, $interval, 0, $cb
		386	}
		387
		388	=item cf::get_slot $time[, $priority[, $name]]
		389
		390	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		391	This call blocks and returns only when you have at least C<$time> seconds
		392	of cpu time till the next tick. The slot is only valid till the next cede.
		393
		394	The optional C<$name> can be used to identify the job to run. It might be
		395	used for statistical purposes and should identify the same time-class.
		396
		397	Useful for short background jobs.
		398
		399	=cut
		400
		401	our @SLOT_QUEUE;
		402	our $SLOT_QUEUE;
		403
		404	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		405	$SLOT_QUEUE = Coro::async {
		406	$Coro::current->desc ("timeslot manager");
		407
		408	my $signal = new Coro::Signal;
		409
		410	while () {
		411	next_job:
		412	my $avail = cf::till_tick;
		413	if ($avail > 0.01) {
		414	for (0 .. $#SLOT_QUEUE) {
		415	if ($SLOT_QUEUE[$_][0] < $avail) {
		416	my $job = splice @SLOT_QUEUE, $_, 1, ();
		417	$job->[2]->send;
		418	Coro::cede;
		419	goto next_job;
		420	}
		421	}
		422	}
		423
		424	if (@SLOT_QUEUE) {
		425	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		426	push @cf::WAIT_FOR_TICK, $signal;
		427	$signal->wait;
		428	} else {
		429	Coro::schedule;
		430	}
		431	}
		432	};
		433
		434	sub get_slot($;$$) {
		435	return if tick_inhibit || $Coro::current == $Coro::main;
		436
		437	my ($time, $pri, $name) = @_;
		438
		439	$time = $TICK * .6 if $time > $TICK * .6;
		440	my $sig = new Coro::Signal;
		441
		442	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		443	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		444	$SLOT_QUEUE->ready;
		445	$sig->wait;
264	}	446	}
265		447
266	=item cf::async { BLOCK }	448	=item cf::async { BLOCK }
267		449
268	Currently the same as Coro::async_pool, meaning you cannot use	450	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		455
274	BEGIN { *async = \&Coro::async_pool }	456	BEGIN { *async = \&Coro::async_pool }
275		457
276	=item cf::sync_job { BLOCK }	458	=item cf::sync_job { BLOCK }
277		459
278	The design of crossfire+ requires that the main coro ($Coro::main) is	460	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	461	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	462	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		463	acceptable.
281		464
282	If it must be done, put the blocking parts into C<sync_job>. This will run	465	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	466	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	467	server will be frozen during this time, so the block should either finish
285	fast or be very important.	468	fast or be very important.
…		…
288		471
289	sub sync_job(&) {	472	sub sync_job(&) {
290	my ($job) = @_;	473	my ($job) = @_;
291		474
292	if ($Coro::current == $Coro::main) {	475	if ($Coro::current == $Coro::main) {
		476	my $time = EV::time;
		477
293	# this is the main coro, too bad, we have to block	478	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	479	# till the operation succeeds, freezing the server :/
295		480
296	# TODO: use suspend/resume instead	481	LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	482
298	my $freeze_guard = freeze_mainloop;	483	my $freeze_guard = freeze_mainloop;
299		484
300	my $busy = 1;	485	my $busy = 1;
301	my @res;	486	my @res;
302		487
303	(async {	488	(async {
		489	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	490	@res = eval { $job->() };
305	warn $@ if $@;	491	warn $@ if $@;
306	undef $busy;	492	undef $busy;
307	})->prio (Coro::PRIO_MAX);	493	})->prio (Coro::PRIO_MAX);
308		494
309	while ($busy) {	495	while ($busy) {
310	Coro::cede or Event::one_event;	496	if (Coro::nready) {
		497	Coro::cede_notself;
		498	} else {
		499	EV::loop EV::LOOP_ONESHOT;
311	}	500	}
		501	}
		502
		503	my $time = EV::time - $time;
		504
		505	$TICK_START += $time; # do not account sync jobs to server load
312		506
313	wantarray ? @res : $res[0]	507	wantarray ? @res : $res[0]
314	} else {	508	} else {
315	# we are in another coroutine, how wonderful, everything just works	509	# we are in another coroutine, how wonderful, everything just works
316		510
…		…
336	$EXT_CORO{$coro+0} = $coro;	530	$EXT_CORO{$coro+0} = $coro;
337		531
338	$coro	532	$coro
339	}	533	}
340		534
341	sub write_runtime {	535	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		536
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	Executes the given code block with the given arguments in a seperate
345	or return;	538	process, returning the results. Everything must be serialisable with
		539	Coro::Storable. May, of course, block. Note that the executed sub may
		540	never block itself or use any form of event handling.
346		541
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	542	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		543
351	aio_fsync $fh	544	sub fork_call(&@) {
352	and return;	545	my ($cb, @args) = @_;
353		546
354	close $fh	547	# we seemingly have to make a local copy of the whole thing,
355	or return;	548	# otherwise perl prematurely frees the stuff :/
		549	# TODO: investigate and fix (likely this will be rather laborious)
356		550
357	aio_rename "$runtime~", $runtime	551	my @res = Coro::Util::fork_eval {
358	and return;	552	reset_signals;
		553	&$cb
		554	}, @args;
359		555
		556	wantarray ? @res : $res[-1]
		557	}
		558
		559	=item $coin = coin_from_name $name
		560
		561	=cut
		562
		563	our %coin_alias = (
		564	"silver" => "silvercoin",
		565	"silvercoin" => "silvercoin",
		566	"silvercoins" => "silvercoin",
		567	"gold" => "goldcoin",
		568	"goldcoin" => "goldcoin",
		569	"goldcoins" => "goldcoin",
		570	"platinum" => "platinacoin",
		571	"platinumcoin" => "platinacoin",
		572	"platinumcoins" => "platinacoin",
		573	"platina" => "platinacoin",
		574	"platinacoin" => "platinacoin",
		575	"platinacoins" => "platinacoin",
		576	"royalty" => "royalty",
		577	"royalties" => "royalty",
		578	);
		579
		580	sub coin_from_name($) {
		581	$coin_alias{$_[0]}
		582	? cf::arch::find $coin_alias{$_[0]}
		583	: undef
		584	}
		585
		586	=item $value = cf::db_get $family => $key
		587
		588	Returns a single value from the environment database.
		589
		590	=item cf::db_put $family => $key => $value
		591
		592	Stores the given C<$value> in the family. It can currently store binary
		593	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		594
		595	=item $db = cf::db_table "name"
		596
		597	Create and/or open a new database table. The string must not be "db" and must be unique
		598	within each server.
		599
		600	=cut
		601
		602	sub db_table($) {
		603	my ($name) = @_;
		604	my $db = BDB::db_create $DB_ENV;
		605
		606	eval {
		607	$db->set_flags (BDB::CHKSUM);
		608
		609	utf8::encode $name;
		610	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		611	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		612	cf::cleanup "db_open(db): $!" if $!;
		613	};
		614	cf::cleanup "db_open(db): $@" if $@;
		615
		616	$db
		617	}
		618
		619	our $DB;
		620
		621	sub db_init {
		622	cf::sync_job {
		623	$DB ||= db_table "db";
		624	};
		625	}
		626
		627	sub db_get($$) {
		628	my $key = "$_[0]/$_[1]";
		629
		630	cf::sync_job {
		631	BDB::db_get $DB, undef, $key, my $data;
		632
		633	$! ? ()
		634	: $data
360	1	635	}
		636	}
		637
		638	sub db_put($$$) {
		639	BDB::dbreq_pri 4;
		640	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		641	}
		642
		643	=item cf::cache $id => [$paths...], $processversion => $process
		644
		645	Generic caching function that returns the value of the resource $id,
		646	caching and regenerating as required.
		647
		648	This function can block.
		649
		650	=cut
		651
		652	sub cache {
		653	my ($id, $src, $processversion, $process) = @_;
		654
		655	my $meta =
		656	join "\x00",
		657	$processversion,
		658	map {
		659	aio_stat $_
		660	and Carp::croak "$_: $!";
		661
		662	($_, (stat _)[7,9])
		663	} @$src;
		664
		665	my $dbmeta = db_get cache => "$id/meta";
		666	if ($dbmeta ne $meta) {
		667	# changed, we may need to process
		668
		669	my @data;
		670	my $md5;
		671
		672	for (0 .. $#$src) {
		673	0 <= aio_load $src->[$_], $data[$_]
		674	or Carp::croak "$src->[$_]: $!";
		675	}
		676
		677	# if processing is expensive, check
		678	# checksum first
		679	if (1) {
		680	$md5 =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	cf::cede_to_tick;
		685	($src->[$_], Digest::MD5::md5_hex $data[$_])
		686	} 0.. $#$src;
		687
		688
		689	my $dbmd5 = db_get cache => "$id/md5";
		690	if ($dbmd5 eq $md5) {
		691	db_put cache => "$id/meta", $meta;
		692
		693	return db_get cache => "$id/data";
		694	}
		695	}
		696
		697	my $t1 = Time::HiRes::time;
		698	my $data = $process->(\@data);
		699	my $t2 = Time::HiRes::time;
		700
		701	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		702
		703	db_put cache => "$id/data", $data;
		704	db_put cache => "$id/md5" , $md5;
		705	db_put cache => "$id/meta", $meta;
		706
		707	return $data;
		708	}
		709
		710	db_get cache => "$id/data"
		711	}
		712
		713	=item cf::datalog type => key => value, ...
		714
		715	Log a datalog packet of the given type with the given key-value pairs.
		716
		717	=cut
		718
		719	sub datalog($@) {
		720	my ($type, %kv) = @_;
		721	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	722	}
362		723
363	=back	724	=back
364		725
365	=cut	726	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		727
543	#############################################################################	728	#############################################################################
544		729
545	=head2 ATTACHABLE OBJECTS	730	=head2 ATTACHABLE OBJECTS
546		731
…		…
548	attach callbacks/event handlers (a collection of which is called an "attachment")	733	attach callbacks/event handlers (a collection of which is called an "attachment")
549	to it. All such attachable objects support the following methods.	734	to it. All such attachable objects support the following methods.
550		735
551	In the following description, CLASS can be any of C<global>, C<object>	736	In the following description, CLASS can be any of C<global>, C<object>
552	C<player>, C<client> or C<map> (i.e. the attachable objects in	737	C<player>, C<client> or C<map> (i.e. the attachable objects in
553	crossfire+).	738	Deliantra).
554		739
555	=over 4	740	=over 4
556		741
557	=item $attachable->attach ($attachment, key => $value...)	742	=item $attachable->attach ($attachment, key => $value...)
558		743
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	857	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	858	our @CB_MAP = ();
674		859
675	my %attachment;	860	my %attachment;
676		861
		862	sub cf::attachable::thawer_merge {
		863	# simply override everything except _meta
		864	local $_[0]{_meta};
		865	%{$_[0]} = %{$_[1]};
		866	}
		867
677	sub _attach_cb($$$$) {	868	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	869	my ($registry, $event, $prio, $cb) = @_;
679		870
680	use sort 'stable';	871	use sort 'stable';
681		872
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	906	$registry = $CB_TYPE[$object_type] ||= [];
716		907
717	} elsif ($type eq "subtype") {	908	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	909	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	910	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	911	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		912
722	} elsif ($type eq "package") {	913	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	914	my $pkg = shift @arg;
724		915
725	while (my ($name, $id) = each %cb_id) {	916	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	945	_attach $registry, $klass, @attach;
755	}	946	}
756		947
757	$obj->{$name} = \%arg;	948	$obj->{$name} = \%arg;
758	} else {	949	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	950	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	951	}
761		952
762	$obj->{_attachment}{$name} = undef;	953	$obj->{_attachment}{$name} = undef;
763	}	954	}
764		955
…		…
766	if (ref $_[0]) {	957	if (ref $_[0]) {
767	_object_attach @_;	958	_object_attach @_;
768	} else {	959	} else {
769	_attach shift->_attach_registry, @_;	960	_attach shift->_attach_registry, @_;
770	}	961	}
		962	_recalc_want;
771	};	963	};
772		964
773	# all those should be optimised	965	# all those should be optimised
774	sub cf::attachable::detach {	966	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	967	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	970	delete $obj->{_attachment}{$name};
779	reattach ($obj);	971	reattach ($obj);
780	} else {	972	} else {
781	Carp::croak "cannot, currently, detach class attachments";	973	Carp::croak "cannot, currently, detach class attachments";
782	}	974	}
		975	_recalc_want;
783	};	976	};
784		977
785	sub cf::attachable::attached {	978	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	979	my ($obj, $name) = @_;
787		980
…		…
802	";	995	";
803	die if $@;	996	die if $@;
804	}	997	}
805		998
806	our $override;	999	our $override;
807	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1000	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
808		1001
809	sub override {	1002	sub override {
810	$override = 1;	1003	$override = 1;
811	@invoke_results = ();	1004	@INVOKE_RESULTS = (@_);
812	}	1005	}
813		1006
814	sub do_invoke {	1007	sub do_invoke {
815	my $event = shift;	1008	my $event = shift;
816	my $callbacks = shift;	1009	my $callbacks = shift;
817		1010
818	@invoke_results = ();	1011	@INVOKE_RESULTS = ();
819		1012
820	local $override;	1013	local $override;
821		1014
822	for (@$callbacks) {	1015	for (@$callbacks) {
823	eval { &{$_->[1]} };	1016	eval { &{$_->[1]} };
…		…
832	}	1025	}
833		1026
834	0	1027	0
835	}	1028	}
836		1029
837	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1030	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
838		1031
839	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
840		1033
841	Generate an object-specific event with the given arguments.	1034	Generate an object-specific event with the given arguments.
842		1035
843	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1036	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
844	removed in future versions), and there is no public API to access override	1037	removed in future versions), and there is no public API to access override
845	results (if you must, access C<@cf::invoke_results> directly).	1038	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		1039
847	=back	1040	=back
848		1041
849	=cut	1042	=cut
850		1043
851	#############################################################################	1044	#############################################################################
852	# object support	1045	# object support
		1046
		1047	sub _object_equal($$);
		1048	sub _object_equal($$) {
		1049	my ($a, $b) = @_;
		1050
		1051	return 0 unless (ref $a) eq (ref $b);
		1052
		1053	if ("HASH" eq ref $a) {
		1054	my @ka = keys %$a;
		1055	my @kb = keys %$b;
		1056
		1057	return 0 if @ka != @kb;
		1058
		1059	for (0 .. $#ka) {
		1060	return 0 unless $ka[$_] eq $kb[$_];
		1061	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1062	}
		1063
		1064	} elsif ("ARRAY" eq ref $a) {
		1065
		1066	return 0 if @$a != @$b;
		1067
		1068	for (0 .. $#$a) {
		1069	return 0 unless _object_equal $a->[$_], $b->[$_];
		1070	}
		1071
		1072	} elsif ($a ne $b) {
		1073	return 0;
		1074	}
		1075
		1076	1
		1077	}
		1078
		1079	our $SLOW_MERGES;#d#
		1080	sub _can_merge {
		1081	my ($ob1, $ob2) = @_;
		1082
		1083	++$SLOW_MERGES;#d#
		1084
		1085	# we do the slow way here
		1086	return _object_equal $ob1, $ob2
		1087	}
853		1088
854	sub reattach {	1089	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1090	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1091	my ($obj) = @_;
		1092
		1093	# no longer needed after getting rid of delete_package?
		1094	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1095
858	my $registry = $obj->registry;	1096	my $registry = $obj->registry;
859		1097
860	@$registry = ();	1098	@$registry = ();
861		1099
…		…
876	cf::attachable->attach (	1114	cf::attachable->attach (
877	prio => -1000000,	1115	prio => -1000000,
878	on_instantiate => sub {	1116	on_instantiate => sub {
879	my ($obj, $data) = @_;	1117	my ($obj, $data) = @_;
880		1118
881	$data = from_json $data;	1119	$data = decode_json $data;
882		1120
883	for (@$data) {	1121	for (@$data) {
884	my ($name, $args) = @$_;	1122	my ($name, $args) = @$_;
885		1123
886	$obj->attach ($name, %{$args || {} });	1124	$obj->attach ($name, %{$args || {} });
…		…
902	sub object_freezer_save {	1140	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1141	my ($filename, $rdata, $objs) = @_;
904		1142
905	sync_job {	1143	sync_job {
906	if (length $$rdata) {	1144	if (length $$rdata) {
		1145	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1146	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1147	$decname, length $$rdata, scalar @$objs;
909		1148
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1149	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1150	aio_chmod $fh, SAVE_MODE;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1151	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1152	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1153	aio_close $fh;
915		1154
916	if (@$objs) {	1155	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1156	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	1157	aio_chmod $fh, SAVE_MODE;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1158	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1159	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1160	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1161	aio_close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1162	aio_rename "$filename.pst~", "$filename.pst";
924	}	1163	}
925	} else {	1164	} else {
926	aio_unlink "$filename.pst";	1165	aio_unlink "$filename.pst";
927	}	1166	}
…		…
932	}	1171	}
933	} else {	1172	} else {
934	aio_unlink $filename;	1173	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1174	aio_unlink "$filename.pst";
936	}	1175	}
937	}	1176	};
938	}	1177	}
939		1178
940	sub object_freezer_as_string {	1179	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1180	my ($rdata, $objs) = @_;
942		1181
…		…
954	or return;	1193	or return;
955		1194
956	unless (aio_stat "$filename.pst") {	1195	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1196	(aio_load "$filename.pst", $av) >= 0
958	or return;	1197	or return;
		1198
959	$av = eval { (Storable::thaw $av)->{objs} };	1199	my $st = eval { Coro::Storable::thaw $av };
		1200	$av = $st->{objs};
960	}	1201	}
961		1202
		1203	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1204	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1205	$decname, length $data, scalar @{$av || []};
		1206
964	return ($data, $av);	1207	($data, $av)
965	}	1208	}
		1209
		1210	=head2 COMMAND CALLBACKS
		1211
		1212	=over 4
		1213
		1214	=cut
966		1215
967	#############################################################################	1216	#############################################################################
968	# command handling &c	1217	# command handling &c
969		1218
970	=item cf::register_command $name => \&callback($ob,$args);	1219	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1232	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1233	}
985		1234
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1235	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1236
988	Register a callbackf ro execution when the client sends an extcmd packet.	1237	Register a callback for execution when the client sends an (synchronous)
		1238	extcmd packet. Ext commands will be processed in the order they are
		1239	received by the server, like other user commands. The first argument is
		1240	the logged-in player. Ext commands can only be processed after a player
		1241	has logged in successfully.
989		1242
990	If the callback returns something, it is sent back as if reply was being	1243	If the callback returns something, it is sent back as if reply was being
991	called.	1244	called.
992		1245
		1246	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1247
		1248	Register a callback for execution when the client sends an (asynchronous)
		1249	exticmd packet. Exti commands are processed by the server as soon as they
		1250	are received, i.e. out of order w.r.t. other commands. The first argument
		1251	is a client socket. Exti commands can be received anytime, even before
		1252	log-in.
		1253
		1254	If the callback returns something, it is sent back as if reply was being
		1255	called.
		1256
993	=cut	1257	=cut
994		1258
995	sub register_extcmd {	1259	sub register_extcmd {
996	my ($name, $cb) = @_;	1260	my ($name, $cb) = @_;
997		1261
998	$EXTCMD{$name} = $cb;	1262	$EXTCMD{$name} = $cb;
		1263	}
		1264
		1265	sub register_exticmd {
		1266	my ($name, $cb) = @_;
		1267
		1268	$EXTICMD{$name} = $cb;
999	}	1269	}
1000		1270
1001	cf::player->attach (	1271	cf::player->attach (
1002	on_command => sub {	1272	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1273	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1282	cf::override;
1013	},	1283	},
1014	on_extcmd => sub {	1284	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1285	my ($pl, $buf) = @_;
1016		1286
1017	my $msg = eval { from_json $buf };	1287	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1288
1019	if (ref $msg) {	1289	if (ref $msg) {
		1290	my ($type, $reply, @payload) =
		1291	"ARRAY" eq ref $msg
		1292	? @$msg
		1293	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1294
		1295	my @reply;
		1296
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1297	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1298	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1299	}
		1300
		1301	$pl->ext_reply ($reply, @reply)
		1302	if $reply;
		1303
1025	} else {	1304	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1305	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1306	}
1028		1307
1029	cf::override;	1308	cf::override;
1030	},	1309	},
1031	);	1310	);
1032		1311
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1312	sub load_extensions {
		1313	cf::sync_job {
		1314	my %todo;
		1315
1061	for my $ext (<$LIBDIR/*.ext>) {	1316	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1317	next unless -r $path;
1063	eval {	1318
1064	load_extension $ext;	1319	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1320	my $base = $1;
		1321	my $pkg = $1;
		1322	$pkg =~ s/[^[:word:]]/_/g;
		1323	$pkg = "ext::$pkg";
		1324
		1325	open my $fh, "<:utf8", $path
		1326	or die "$path: $!";
		1327
		1328	my $source = do { local $/; <$fh> };
		1329
		1330	my %ext = (
		1331	path => $path,
		1332	base => $base,
		1333	pkg => $pkg,
		1334	);
		1335
		1336	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1337	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1338
		1339	$ext{source} =
		1340	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1341	. "#line 1 \"$path\"\n{\n"
		1342	. $source
		1343	. "\n};\n1";
		1344
		1345	$todo{$base} = \%ext;
		1346	}
		1347
		1348	my %done;
		1349	while (%todo) {
		1350	my $progress;
		1351
		1352	while (my ($k, $v) = each %todo) {
		1353	for (split /,\s*/, $v->{meta}{depends}) {
		1354	goto skip
		1355	unless exists $done{$_};
		1356	}
		1357
		1358	warn "... loading '$k' into '$v->{pkg}'\n";
		1359
		1360	unless (eval $v->{source}) {
		1361	my $msg = $@ ? "$v->{path}: $@\n"
		1362	: "$v->{base}: extension inactive.\n";
		1363
		1364	if (exists $v->{meta}{mandatory}) {
		1365	warn $msg;
		1366	cf::cleanup "mandatory extension failed to load, exiting.";
		1367	}
		1368
		1369	warn $msg;
		1370	}
		1371
		1372	$done{$k} = delete $todo{$k};
		1373	push @EXTS, $v->{pkg};
		1374	$progress = 1;
1065	1	1375	}
1066	} or warn "$ext not loaded: $@";	1376
		1377	skip:
		1378	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1379	unless $progress;
		1380	}
1067	}	1381	};
1068	}	1382	}
1069		1383
1070	#############################################################################	1384	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1385
1073	*cf::mapsupport::on_clean = sub {	1386	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1387
1086	=head2 CORE EXTENSIONS	1388	=head2 CORE EXTENSIONS
1087		1389
1088	Functions and methods that extend core crossfire objects.	1390	Functions and methods that extend core crossfire objects.
1089		1391
…		…
1095		1397
1096	=head3 cf::player	1398	=head3 cf::player
1097		1399
1098	=over 4	1400	=over 4
1099		1401
		1402	=item cf::player::num_playing
		1403
		1404	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1405
		1406	=cut
		1407
		1408	sub num_playing {
		1409	scalar grep
		1410	$_->ob->map
		1411	&& !$_->hidden
		1412	&& !$_->ob->flag (cf::FLAG_WIZ),
		1413	cf::player::list
		1414	}
		1415
1100	=item cf::player::find $login	1416	=item cf::player::find $login
1101		1417
1102	Returns the given player object, loading it if necessary (might block).	1418	Returns the given player object, loading it if necessary (might block).
1103		1419
1104	=cut	1420	=cut
1105		1421
1106	sub playerdir($) {	1422	sub playerdir($) {
1107	cf::localdir	1423	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1424	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1425	}
1113		1426
1114	sub path($) {	1427	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1428	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1429
1117	(playerdir $login) . "/$login.pl"	1430	(playerdir $login) . "/playerdata"
1118	}	1431	}
1119		1432
1120	sub find_active($) {	1433	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1434	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1435	and $cf::PLAYER{$_[0]}->active
…		…
1125		1438
1126	sub exists($) {	1439	sub exists($) {
1127	my ($login) = @_;	1440	my ($login) = @_;
1128		1441
1129	$cf::PLAYER{$login}	1442	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1443	or cf::sync_job { !aio_stat path $login }
1131	}	1444	}
1132		1445
1133	sub find($) {	1446	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1447	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1448	my $login = $_[0];
1136		1449
1137	my $guard = cf::lock_acquire "user_find:$login";	1450	my $guard = cf::lock_acquire "user_find:$login";
1138		1451
1139	$cf::PLAYER{$_[0]} || do {	1452	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1453	# rename old playerfiles to new ones
		1454	#TODO: remove when no longer required
		1455	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1456	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1457	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1458	aio_unlink +(playerdir $login) . "/$login.pl";
		1459
		1460	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1461	or return;
		1462
		1463	my $pl = cf::player::load_pl $f
		1464	or return;
		1465
		1466	local $cf::PLAYER_LOADING{$login} = $pl;
		1467	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1468	$cf::PLAYER{$login} = $pl
1143	}	1469	}
1144	}	1470	}
1145	}	1471	}
1146		1472
…		…
1155	return if $pl->{deny_save};	1481	return if $pl->{deny_save};
1156		1482
1157	aio_mkdir playerdir $pl, 0770;	1483	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1484	$pl->{last_save} = $cf::RUNTIME;
1159		1485
		1486	cf::get_slot 0.01;
		1487
1160	$pl->save_pl ($path);	1488	$pl->save_pl ($path);
1161	Coro::cede;	1489	cf::cede_to_tick;
1162	}	1490	}
1163		1491
1164	sub new($) {	1492	sub new($) {
1165	my ($login) = @_;	1493	my ($login) = @_;
1166		1494
…		…
1172	$cf::PLAYER{$login} = $self;	1500	$cf::PLAYER{$login} = $self;
1173		1501
1174	$self	1502	$self
1175	}	1503	}
1176		1504
		1505	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1506
		1507	=cut
		1508
		1509	sub send_msg {
		1510	my $ns = shift->ns
		1511	or return;
		1512	$ns->send_msg (@_);
		1513	}
		1514
1177	=item $pl->quit_character	1515	=item $pl->quit_character
1178		1516
1179	Nukes the player without looking back. If logged in, the connection will	1517	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1518	be destroyed. May block for a long time.
1181		1519
1182	=cut	1520	=cut
1183		1521
1184	sub quit_character {	1522	sub quit_character {
1185	my ($pl) = @_;	1523	my ($pl) = @_;
1186		1524
		1525	my $name = $pl->ob->name;
		1526
1187	$pl->{deny_save} = 1;	1527	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1528	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1189		1529
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1530	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1191	$pl->deactivate;	1531	$pl->deactivate;
		1532	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1533	$pl->ob->check_score;
1192	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1534	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1193	$pl->ns->destroy if $pl->ns;	1535	$pl->ns->destroy if $pl->ns;
1194		1536
1195	my $path = playerdir $pl;	1537	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1538	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1539	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1540	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1541	$pl->destroy;
		1542
		1543	my $prefix = qr<^~\Q$name\E/>;
		1544
		1545	# nuke player maps
		1546	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1547
1200	IO::AIO::aio_rmtree $temp;	1548	IO::AIO::aio_rmtree $temp;
		1549	}
		1550
		1551	=item $pl->kick
		1552
		1553	Kicks a player out of the game. This destroys the connection.
		1554
		1555	=cut
		1556
		1557	sub kick {
		1558	my ($pl, $kicker) = @_;
		1559
		1560	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1561	$pl->killer ("kicked");
		1562	$pl->ns->destroy;
1201	}	1563	}
1202		1564
1203	=item cf::player::list_logins	1565	=item cf::player::list_logins
1204		1566
1205	Returns am arrayref of all valid playernames in the system, can take a	1567	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1568	while and may block, so not sync_job-capable, ever.
1207		1569
1208	=cut	1570	=cut
1209		1571
1210	sub list_logins {	1572	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1573	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1574	or return [];
1213		1575
1214	my @logins;	1576	my @logins;
1215		1577
1216	for my $login (@$dirs) {	1578	for my $login (@$dirs) {
		1579	my $path = path $login;
		1580
		1581	# a .pst is a dead give-away for a valid player
		1582	# if no pst file found, open and chekc for blocked users
		1583	if (aio_stat "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1584	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1585	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1586	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1587	}
1220		1588
1221	utf8::decode $login;	1589	utf8::decode $login;
1222	push @logins, $login;	1590	push @logins, $login;
1223	}	1591	}
1224		1592
1225	\@logins	1593	\@logins
1226	}	1594	}
1227		1595
1228	=item $player->maps	1596	=item $player->maps
1229		1597
1230	Returns an arrayref of cf::path's of all maps that are private for this	1598	Returns an arrayref of map paths that are private for this
1231	player. May block.	1599	player. May block.
1232		1600
1233	=cut	1601	=cut
1234		1602
1235	sub maps($) {	1603	sub maps($) {
1236	my ($pl) = @_;	1604	my ($pl) = @_;
		1605
		1606	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1607
1238	my $files = aio_readdir playerdir $pl	1608	my $files = aio_readdir playerdir $pl
1239	or return;	1609	or return;
1240		1610
1241	my @paths;	1611	my @paths;
…		…
1243	for (@$files) {	1613	for (@$files) {
1244	utf8::decode $_;	1614	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1615	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1616	next unless /^$PATH_SEP/o;
1247		1617
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1618	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1619	}
1250		1620
1251	\@paths	1621	\@paths
1252	}	1622	}
1253		1623
		1624	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1625
		1626	Expand crossfire pod fragments into protocol xml.
		1627
		1628	=cut
		1629
		1630	sub expand_cfpod {
		1631	my ($self, $pod) = @_;
		1632
		1633	my @nest = [qr<\G$>, undef, ""];
		1634	my $xml;
		1635
		1636	for ($pod) {
		1637	while () {
		1638	if (/\G( (?: [^BCEGHITUZ&>\n\ ]+ | [BCEGHITUZ](?!<) | \ (?!>) )+ )/xgcs) {
		1639	$xml .= $1;
		1640	} elsif (/\G\n(?=\S)/xgcs) {
		1641	$xml .= " ";
		1642	} elsif (/\G\n/xgcs) {
		1643	$xml .= "\n";
		1644	} elsif (/\G ([BCEGHITUZ]) (< (?: <+\ | (?!<) ) )/xgcs) {
		1645	my ($code, $delim) = ($1, scalar reverse $2);
		1646	$delim =~ y/</>/; # delim now contains the stop sequence
		1647	$delim = qr{\G\Q$delim};
		1648
		1649	my $cb;
		1650
		1651	if ($code eq "B") {
		1652	$cb = sub { "<b>$_[0]</b>" };
		1653	} elsif ($code eq "C") {
		1654	$cb = sub { "<tt>$_[0]</tt>" };
		1655	} elsif ($code eq "E") {
		1656	$cb = sub { warn "E<$_[0]>\n";"&$_[0];" };
		1657	} elsif ($code eq "G") {
		1658	$cb = sub {
		1659	my ($male, $female) = split /\|/, $_[0];
		1660	$self->gender ? $female : $male
		1661	};
		1662	} elsif ($code eq "H") {
		1663	$cb = sub {
		1664	(
		1665	"<fg name=\"lightblue\">[$_[0] (Use hintmode to suppress hints)]</fg>",
		1666	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1667	"",
		1668	)[$self->{hintmode}];
		1669	};
		1670	} elsif ($code eq "I") {
		1671	$cb = sub { "<i>$_[0]</i>" };
		1672	} elsif ($code eq "T") {
		1673	$cb = sub { "<big><b>$_[0]</b></big>" };
		1674	} elsif ($code eq "U") {
		1675	$cb = sub { "<u>$_[0]</u>" };
		1676	} elsif ($code eq "Z") {
		1677	$cb = sub { };
		1678	} else {
		1679	die "FATAL error in expand_cfpod";
		1680	}
		1681
		1682	push @nest, [$delim, $cb, $xml];
		1683	undef $xml;
		1684
		1685	} elsif ($_ =~ /$nest[-1][0]/gcs) {
		1686	my $nest = pop @nest;
		1687
		1688	if ($nest->[1]) {
		1689	$xml = $nest->[2] . $nest->[1]->($xml);
		1690	} else {
		1691	last;
		1692	}
		1693	} elsif (/\G</xgcs) {
		1694	$xml .= "&lt;";
		1695	} elsif (/\G&/xgcs) {
		1696	$xml .= "&amp;";
		1697	} elsif (/\G>/xgcs) {
		1698	$xml .= ">";
		1699	} else {
		1700	if ($pod =~ /\G(.+)/xgcs) {
		1701	warn "parse error (at $1)($nest[-1][0]) while expanding cfpod:\n$pod";
		1702	last;
		1703	} else {
		1704	warn "parse error (unclosed interior sequence at end of cfpod) while expanding cfpod:\n$pod";
		1705	return "<b>Sorry, the server encountered an internal error when formatting this message, please report this.</b>";
		1706	}
		1707	}
		1708	}
		1709	}
		1710
		1711	$xml
		1712	}
		1713
		1714	sub hintmode {
		1715	$_[0]{hintmode} = $_[1] if @_ > 1;
		1716	$_[0]{hintmode}
		1717	}
		1718
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1719	=item $player->ext_reply ($msgid, @msg)
1255		1720
1256	Sends an ext reply to the player.	1721	Sends an ext reply to the player.
1257		1722
1258	=cut	1723	=cut
1259		1724
1260	sub ext_reply($$$%) {	1725	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1726	my ($self, $id, @msg) = @_;
1262		1727
1263	$msg{msgid} = $id;	1728	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1729	}
1267		1730
1268	package cf;	1731	=item $player->ext_msg ($type, @msg)
		1732
		1733	Sends an ext event to the client.
		1734
		1735	=cut
		1736
		1737	sub ext_msg($$@) {
		1738	my ($self, $type, @msg) = @_;
		1739
		1740	$self->ns->ext_msg ($type, @msg);
		1741	}
		1742
		1743	=head3 cf::region
		1744
		1745	=over 4
		1746
		1747	=cut
		1748
		1749	package cf::region;
		1750
		1751	=item cf::region::find_by_path $path
		1752
		1753	Tries to decuce the likely region for a map knowing only its path.
		1754
		1755	=cut
		1756
		1757	sub find_by_path($) {
		1758	my ($path) = @_;
		1759
		1760	my ($match, $specificity);
		1761
		1762	for my $region (list) {
		1763	if ($region->{match} && $path =~ $region->{match}) {
		1764	($match, $specificity) = ($region, $region->specificity)
		1765	if $region->specificity > $specificity;
		1766	}
		1767	}
		1768
		1769	$match
		1770	}
1269		1771
1270	=back	1772	=back
1271
1272		1773
1273	=head3 cf::map	1774	=head3 cf::map
1274		1775
1275	=over 4	1776	=over 4
1276		1777
…		…
1279	package cf::map;	1780	package cf::map;
1280		1781
1281	use Fcntl;	1782	use Fcntl;
1282	use Coro::AIO;	1783	use Coro::AIO;
1283		1784
		1785	use overload
		1786	'""' => \&as_string,
		1787	fallback => 1;
		1788
1284	our $MAX_RESET = 3600;	1789	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1790	our $DEFAULT_RESET = 3000;
1286		1791
1287	sub generate_random_map {	1792	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1793	my ($self, $rmp) = @_;
		1794
		1795	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1289		1796
1290	# mit "rum" bekleckern, nicht	1797	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1798	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1799	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1800	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1801	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1802	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1803	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1808	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1809	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1810	)
1305	}	1811	}
1306		1812
		1813	=item cf::map->register ($regex, $prio)
		1814
		1815	Register a handler for the map path matching the given regex at the
		1816	givne priority (higher is better, built-in handlers have priority 0, the
		1817	default).
		1818
		1819	=cut
		1820
		1821	sub register {
		1822	my (undef, $regex, $prio) = @_;
		1823	my $pkg = caller;
		1824
		1825	no strict;
		1826	push @{"$pkg\::ISA"}, __PACKAGE__;
		1827
		1828	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1829	}
		1830
		1831	# also paths starting with '/'
		1832	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1833
		1834	sub thawer_merge {
		1835	my ($self, $merge) = @_;
		1836
		1837	# we have to keep some variables in memory intact
		1838	local $self->{path};
		1839	local $self->{load_path};
		1840
		1841	$self->SUPER::thawer_merge ($merge);
		1842	}
		1843
		1844	sub normalise {
		1845	my ($path, $base) = @_;
		1846
		1847	$path = "$path"; # make sure its a string
		1848
		1849	$path =~ s/\.map$//;
		1850
		1851	# map plan:
		1852	#
		1853	# /! non-realised random map exit (special hack!)
		1854	# {... are special paths that are not being touched
		1855	# ?xxx/... are special absolute paths
		1856	# ?random/... random maps
		1857	# /... normal maps
		1858	# ~user/... per-player map of a specific user
		1859
		1860	$path =~ s/$PATH_SEP/\//go;
		1861
		1862	# treat it as relative path if it starts with
		1863	# something that looks reasonable
		1864	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1865	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1866
		1867	$base =~ s{[^/]+/?$}{};
		1868	$path = "$base/$path";
		1869	}
		1870
		1871	for ($path) {
		1872	redo if s{//}{/};
		1873	redo if s{/\.?/}{/};
		1874	redo if s{/[^/]+/\.\./}{/};
		1875	}
		1876
		1877	$path
		1878	}
		1879
		1880	sub new_from_path {
		1881	my (undef, $path, $base) = @_;
		1882
		1883	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1884
		1885	$path = normalise $path, $base;
		1886
		1887	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1888	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1889	my $self = bless cf::map::new, $pkg;
		1890	$self->{path} = $path; $self->path ($path);
		1891	$self->init; # pass $1 etc.
		1892	return $self;
		1893	}
		1894	}
		1895
		1896	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1897	()
		1898	}
		1899
		1900	sub init {
		1901	my ($self) = @_;
		1902
		1903	$self
		1904	}
		1905
		1906	sub as_string {
		1907	my ($self) = @_;
		1908
		1909	"$self->{path}"
		1910	}
		1911
		1912	# the displayed name, this is a one way mapping
		1913	sub visible_name {
		1914	&as_string
		1915	}
		1916
		1917	# the original (read-only) location
		1918	sub load_path {
		1919	my ($self) = @_;
		1920
		1921	"$MAPDIR/$self->{path}.map"
		1922	}
		1923
		1924	# the temporary/swap location
		1925	sub save_path {
		1926	my ($self) = @_;
		1927
		1928	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1929	"$TMPDIR/$path.map"
		1930	}
		1931
		1932	# the unique path, undef == no special unique path
		1933	sub uniq_path {
		1934	my ($self) = @_;
		1935
		1936	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1937	"$UNIQUEDIR/$path"
		1938	}
		1939
1307	# and all this just because we cannot iterate over	1940	# and all this just because we cannot iterate over
1308	# all maps in C++...	1941	# all maps in C++...
1309	sub change_all_map_light {	1942	sub change_all_map_light {
1310	my ($change) = @_;	1943	my ($change) = @_;
1311		1944
1312	$_->change_map_light ($change)	1945	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1946	for grep $_->outdoor, values %cf::MAP;
1314	}	1947	}
1315		1948
		1949	sub decay_objects {
		1950	my ($self) = @_;
		1951
		1952	return if $self->{deny_reset};
		1953
		1954	$self->do_decay_objects;
		1955	}
		1956
		1957	sub unlink_save {
		1958	my ($self) = @_;
		1959
		1960	utf8::encode (my $save = $self->save_path);
		1961	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1962	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1963	}
		1964
1316	sub load_map_header($) {	1965	sub load_header_from($) {
1317	my ($path) = @_;	1966	my ($self, $path) = @_;
1318		1967
1319	utf8::encode $path;	1968	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1969	my $f = new_from_file cf::object::thawer $path
1321	or return;	1970	or return;
1322		1971
1323	my $map = cf::map::new	1972	$self->_load_header ($f)
1324	or return;	1973	or return;
1325		1974
1326	# for better error messages only, will be overwritten later	1975	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1976	$f->resolve_delayed_derefs;
1328		1977
1329	$map->load_header ($path)	1978	$self->{load_path} = $path;
		1979
		1980	1
		1981	}
		1982
		1983	sub load_header_orig {
		1984	my ($self) = @_;
		1985
		1986	$self->load_header_from ($self->load_path)
		1987	}
		1988
		1989	sub load_header_temp {
		1990	my ($self) = @_;
		1991
		1992	$self->load_header_from ($self->save_path)
		1993	}
		1994
		1995	sub prepare_temp {
		1996	my ($self) = @_;
		1997
		1998	$self->last_access ((delete $self->{last_access})
		1999	|| $cf::RUNTIME); #d#
		2000	# safety
		2001	$self->{instantiate_time} = $cf::RUNTIME
		2002	if $self->{instantiate_time} > $cf::RUNTIME;
		2003	}
		2004
		2005	sub prepare_orig {
		2006	my ($self) = @_;
		2007
		2008	$self->{load_original} = 1;
		2009	$self->{instantiate_time} = $cf::RUNTIME;
		2010	$self->last_access ($cf::RUNTIME);
		2011	$self->instantiate;
		2012	}
		2013
		2014	sub load_header {
		2015	my ($self) = @_;
		2016
		2017	if ($self->load_header_temp) {
		2018	$self->prepare_temp;
		2019	} else {
		2020	$self->load_header_orig
1330	or return;	2021	or return;
		2022	$self->prepare_orig;
		2023	}
1331		2024
1332	$map->{load_path} = $path;	2025	$self->{deny_reset} = 1
		2026	if $self->no_reset;
1333		2027
1334	$map	2028	$self->default_region (cf::region::find_by_path $self->{path})
		2029	unless $self->default_region;
		2030
		2031	1
1335	}	2032	}
1336		2033
1337	sub find;	2034	sub find;
1338	sub find {	2035	sub find {
1339	my ($path, $origin) = @_;	2036	my ($path, $origin) = @_;
1340		2037
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	2038	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		2039
		2040	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	2041	cf::lock_wait "map_find:$path";
1347		2042
1348	$cf::MAP{$key} || do {	2043	$cf::MAP{$path} || do {
		2044	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1349	my $guard = cf::lock_acquire "map_find:$key";	2045	my $guard2 = cf::lock_acquire "map_find:$path";
1350		2046
1351	# do it the slow way	2047	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	2048	or return;
1365		2049
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	2050	$map->{last_save} = $cf::RUNTIME;
1378		2051
1379	Coro::cede;	2052	$map->load_header
		2053	or return;
1380		2054
1381	if ($map->should_reset) {	2055	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2056	# doing this can freeze the server in a sync job, obviously
		2057	#$cf::WAIT_FOR_TICK->wait;
		2058	undef $guard2;
		2059	undef $guard1;
1382	$map->reset;	2060	$map->reset;
1383	undef $guard;
1384	$map = find $path	2061	return find $path;
1385	or return;
1386	}	2062	}
1387		2063
1388	$cf::MAP{$key} = $map	2064	$cf::MAP{$path} = $map
1389	}	2065	}
1390	}	2066	}
		2067
		2068	sub pre_load { }
		2069	sub post_load { }
1391		2070
1392	sub load {	2071	sub load {
1393	my ($self) = @_;	2072	my ($self) = @_;
1394		2073
		2074	local $self->{deny_reset} = 1; # loading can take a long time
		2075
1395	my $path = $self->{path};	2076	my $path = $self->{path};
		2077
		2078	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2079	my $guard = cf::lock_acquire "map_data:$path";
1397		2080
		2081	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2082	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		2083
1400	$self->in_memory (cf::MAP_LOADING);	2084	$self->in_memory (cf::MAP_LOADING);
1401		2085
1402	$self->alloc;	2086	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	2087
		2088	$self->pre_load;
		2089	cf::cede_to_tick;
		2090
		2091	my $f = new_from_file cf::object::thawer $self->{load_path};
		2092	$f->skip_block;
		2093	$self->_load_objects ($f)
1404	or return;	2094	or return;
1405		2095
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2096	$self->post_load_original
1407	if delete $self->{load_original};	2097	if delete $self->{load_original};
1408		2098
1409	if (my $uniq = $path->uniq_path) {	2099	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2100	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2101	unless (aio_stat $uniq) {
		2102	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2103	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2104	$self->_load_objects ($f);
		2105	$f->resolve_delayed_derefs;
		2106	}
1414	}	2107	}
1415	}	2108	}
1416		2109
1417	Coro::cede;	2110	$f->resolve_delayed_derefs;
1418		2111
		2112	cf::cede_to_tick;
1419	# now do the right thing for maps	2113	# now do the right thing for maps
1420	$self->link_multipart_objects;	2114	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2115	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	2116	unless $self->difficulty;
		2117	cf::cede_to_tick;
		2118
		2119	unless ($self->{deny_activate}) {
		2120	$self->decay_objects;
		2121	$self->fix_auto_apply;
		2122	$self->update_buttons;
		2123	cf::cede_to_tick;
		2124	$self->set_darkness_map;
		2125	cf::cede_to_tick;
1432	$self->activate;	2126	$self->activate;
1433	}	2127	}
1434		2128
1435	Coro::cede;	2129	$self->{last_save} = $cf::RUNTIME;
		2130	$self->last_access ($cf::RUNTIME);
1436		2131
1437	$self->in_memory (cf::MAP_IN_MEMORY);	2132	$self->in_memory (cf::MAP_ACTIVE);
		2133	}
		2134
		2135	$self->post_load;
		2136	}
		2137
		2138	sub customise_for {
		2139	my ($self, $ob) = @_;
		2140
		2141	return find "~" . $ob->name . "/" . $self->{path}
		2142	if $self->per_player;
		2143
		2144	# return find "?party/" . $ob->name . "/" . $self->{path}
		2145	# if $self->per_party;
		2146
		2147	$self
1438	}	2148	}
1439		2149
1440	# find and load all maps in the 3x3 area around a map	2150	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2151	sub load_neighbours {
1442	my ($map) = @_;	2152	my ($map) = @_;
1443		2153
1444	my @diag; # diagonal neighbours	2154	my @neigh; # diagonal neighbours
1445		2155
1446	for (0 .. 3) {	2156	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2157	my $neigh = $map->tile_path ($_)
1448	or next;	2158	or next;
1449	$neigh = find $neigh, $map	2159	$neigh = find $neigh, $map
1450	or next;	2160	or next;
1451	$neigh->load;	2161	$neigh->load;
1452		2162
		2163	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2164	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2165	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2166	}
1456		2167
1457	for (@diag) {	2168	for (grep defined $_->[0], @neigh) {
		2169	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2170	my $neigh = find $path, $origin
1459	or next;	2171	or next;
1460	$neigh->load;	2172	$neigh->load;
1461	}	2173	}
1462	}	2174	}
1463		2175
…		…
1468	}	2180	}
1469		2181
1470	sub do_load_sync {	2182	sub do_load_sync {
1471	my ($map) = @_;	2183	my ($map) = @_;
1472		2184
		2185	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2186	if $Coro::current == $Coro::main;
		2187
1473	cf::sync_job { $map->load };	2188	cf::sync_job { $map->load };
1474	}	2189	}
1475		2190
1476	our %MAP_PREFETCH;	2191	our %MAP_PREFETCH;
		2192	our $MAP_PREFETCHER = undef;
		2193
		2194	sub find_async {
		2195	my ($path, $origin, $load) = @_;
		2196
		2197	$path = normalise $path, $origin && $origin->{path};
		2198
		2199	if (my $map = $cf::MAP{$path}) {
		2200	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2201	}
		2202
		2203	$MAP_PREFETCH{$path} |= $load;
		2204
1477	our $MAP_PREFETCHER = Coro::async {	2205	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2206	$Coro::current->{desc} = "map prefetcher";
		2207
1479	while (%MAP_PREFETCH) {	2208	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2209	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2210	if (my $map = find $k) {
		2211	$map->load if $v;
		2212	}
		2213
1482	my $path = delete $MAP_PREFETCH{$key};	2214	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2215	}
1488	Coro::schedule;	2216	}
		2217	undef $MAP_PREFETCHER;
1489	}	2218	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2219	$MAP_PREFETCHER->prio (6);
1504		2220
1505	()	2221	()
1506	}	2222	}
1507		2223
1508	sub save {	2224	sub save {
1509	my ($self) = @_;	2225	my ($self) = @_;
1510		2226
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2228
1513	$self->{last_save} = $cf::RUNTIME;	2229	$self->{last_save} = $cf::RUNTIME;
1514		2230
1515	return unless $self->dirty;	2231	return unless $self->dirty;
1516		2232
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2233	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2234	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2235
1520	$self->{load_path} = $save;	2236	$self->{load_path} = $save;
1521		2237
1522	return if $self->{deny_save};	2238	return if $self->{deny_save};
1523		2239
1524	local $self->{last_access} = $self->last_access;#d#	2240	local $self->{last_access} = $self->last_access;#d#
1525		2241
1526	cf::async {	2242	cf::async {
		2243	$Coro::current->{desc} = "map player save";
1527	$_->contr->save for $self->players;	2244	$_->contr->save for $self->players;
1528	};	2245	};
1529		2246
		2247	cf::get_slot 0.02;
		2248
1530	if ($uniq) {	2249	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2250	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2251	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2252	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2253	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2254	}
1536	}	2255	}
1537		2256
1538	sub swap_out {	2257	sub swap_out {
1539	my ($self) = @_;	2258	my ($self) = @_;
1540		2259
1541	# save first because save cedes	2260	# save first because save cedes
1542	$self->save;	2261	$self->save;
1543		2262
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2263	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2264
1546	return if $self->players;	2265	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2266	return if $self->in_memory != cf::MAP_ACTIVE;
1548	return if $self->{deny_save};	2267	return if $self->{deny_save};
1549		2268
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	$self->deactivate;
		2272	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2273	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2274	}
1553		2275
1554	sub reset_at {	2276	sub reset_at {
1555	my ($self) = @_;	2277	my ($self) = @_;
1556		2278
1557	# TODO: safety, remove and allow resettable per-player maps	2279	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2280	return 1e99 if $self->{deny_reset};
1560		2281
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2282	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2283	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2284
…		…
1568	my ($self) = @_;	2289	my ($self) = @_;
1569		2290
1570	$self->reset_at <= $cf::RUNTIME	2291	$self->reset_at <= $cf::RUNTIME
1571	}	2292	}
1572		2293
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2294	sub reset {
1587	my ($self) = @_;	2295	my ($self) = @_;
1588		2296
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2297	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2298
1591	return if $self->players;	2299	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2300
1594	warn "resetting map ", $self->path;#d#	2301	warn "resetting map ", $self->path;
		2302
		2303	$self->in_memory (cf::MAP_SWAPPED);
		2304
		2305	# need to save uniques path
		2306	unless ($self->{deny_save}) {
		2307	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2308
		2309	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2310	if $uniq;
		2311	}
1595		2312
1596	delete $cf::MAP{$self->path};	2313	delete $cf::MAP{$self->path};
1597		2314
		2315	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2316	$_->clear_links_to ($self) for values %cf::MAP;
		2317	$self->clear;
1599		2318
1600	$self->{path}->unlink_save;	2319	$self->unlink_save;
1601	$self->destroy;	2320	$self->destroy;
1602	}	2321	}
1603		2322
1604	my $nuke_counter = "aaaa";	2323	my $nuke_counter = "aaaa";
1605		2324
1606	sub nuke {	2325	sub nuke {
1607	my ($self) = @_;	2326	my ($self) = @_;
1608		2327
		2328	{
		2329	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2330
		2331	delete $cf::MAP{$self->path};
		2332
		2333	$self->unlink_save;
		2334
		2335	bless $self, "cf::map";
		2336	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2337	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2338	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2339	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2340
		2341	$cf::MAP{$self->path} = $self;
		2342	}
		2343
1612	$self->reset; # polite request, might not happen	2344	$self->reset; # polite request, might not happen
1613	}	2345	}
1614		2346
		2347	=item $maps = cf::map::tmp_maps
		2348
		2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	maps. May block.
		2351
		2352	=cut
		2353
		2354	sub tmp_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise $_
		2360	: ()
		2361	} @{ aio_readdir $TMPDIR or [] }
		2362	]
		2363	}
		2364
		2365	=item $maps = cf::map::random_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	random maps. May block.
		2369
		2370	=cut
		2371
		2372	sub random_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise "?random/$_"
		2378	: ()
		2379	} @{ aio_readdir $RANDOMDIR or [] }
		2380	]
		2381	}
		2382
1615	=item cf::map::unique_maps	2383	=item cf::map::unique_maps
1616		2384
1617	Returns an arrayref of cf::path's of all shared maps that have	2385	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2386	instantiated unique items. May block.
1619		2387
1620	=cut	2388	=cut
1621		2389
1622	sub unique_maps() {	2390	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2391	[
1624	or return;	2392	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2393	utf8::decode $_;
1630	next if /\.pst$/;	2394	s/\.map$//; # TODO future compatibility hack
1631	next unless /^$PATH_SEP/o;	2395	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1632		2396	? ()
1633	push @paths, new cf::path $_;	2397	: normalise $_
		2398	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2399	]
1635
1636	\@paths
1637	}	2400	}
1638
1639	package cf;
1640		2401
1641	=back	2402	=back
1642		2403
1643	=head3 cf::object	2404	=head3 cf::object
1644		2405
…		…
1648		2409
1649	=over 4	2410	=over 4
1650		2411
1651	=item $ob->inv_recursive	2412	=item $ob->inv_recursive
1652		2413
1653	Returns the inventory of the object _and_ their inventories, recursively.	2414	Returns the inventory of the object I<and> their inventories, recursively,
		2415	but I<not> the object itself.
1654		2416
1655	=cut	2417	=cut
1656		2418
1657	sub inv_recursive_;	2419	sub inv_recursive_;
1658	sub inv_recursive_ {	2420	sub inv_recursive_ {
…		…
1661		2423
1662	sub inv_recursive {	2424	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2425	inv_recursive_ inv $_[0]
1664	}	2426	}
1665		2427
		2428	=item $ref = $ob->ref
		2429
		2430	Creates and returns a persistent reference to an object that can be stored as a string.
		2431
		2432	=item $ob = cf::object::deref ($refstring)
		2433
		2434	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2435	even if the object actually exists. May block.
		2436
		2437	=cut
		2438
		2439	sub deref {
		2440	my ($ref) = @_;
		2441
		2442	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2443	my ($uuid, $name) = ($1, $2);
		2444	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2445	or return;
		2446	$pl->ob->uuid eq $uuid
		2447	or return;
		2448
		2449	$pl->ob
		2450	} else {
		2451	warn "$ref: cannot resolve object reference\n";
		2452	undef
		2453	}
		2454	}
		2455
1666	package cf;	2456	package cf;
1667		2457
1668	=back	2458	=back
1669		2459
1670	=head3 cf::object::player	2460	=head3 cf::object::player
…		…
1676	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2466	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1677	can be C<undef>. Does the right thing when the player is currently in a	2467	can be C<undef>. Does the right thing when the player is currently in a
1678	dialogue with the given NPC character.	2468	dialogue with the given NPC character.
1679		2469
1680	=cut	2470	=cut
		2471
		2472	our $SAY_CHANNEL = {
		2473	id => "say",
		2474	title => "Map",
		2475	reply => "say ",
		2476	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2477	};
		2478
		2479	our $CHAT_CHANNEL = {
		2480	id => "chat",
		2481	title => "Chat",
		2482	reply => "chat ",
		2483	tooltip => "Player chat and shouts, global to the server.",
		2484	};
1681		2485
1682	# rough implementation of a future "reply" method that works	2486	# rough implementation of a future "reply" method that works
1683	# with dialog boxes.	2487	# with dialog boxes.
1684	#TODO: the first argument must go, split into a $npc->reply_to ( method	2488	#TODO: the first argument must go, split into a $npc->reply_to ( method
1685	sub cf::object::player::reply($$$;$) {	2489	sub cf::object::player::reply($$$;$) {
…		…
1687		2491
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2492	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2493
1690	if ($self->{record_replies}) {	2494	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2495	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2496
1692	} else {	2497	} else {
		2498	my $pl = $self->contr;
		2499
		2500	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2501	my $dialog = $pl->{npc_dialog};
		2502	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2503
		2504	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2505	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2506	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2507	}
1695	}	2508	}
		2509	}
		2510
		2511	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2512
		2513	=cut
		2514
		2515	sub cf::object::send_msg {
		2516	my $pl = shift->contr
		2517	or return;
		2518	$pl->send_msg (@_);
1696	}	2519	}
1697		2520
1698	=item $player_object->may ("access")	2521	=item $player_object->may ("access")
1699		2522
1700	Returns wether the given player is authorized to access resource "access"	2523	Returns wether the given player is authorized to access resource "access"
…		…
1713		2536
1714	=item $player_object->enter_link	2537	=item $player_object->enter_link
1715		2538
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2539	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2540
1718	The player should be reaosnably safe there for short amounts of time. You	2541	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2542	I<MUST> call C<leave_link> as soon as possible, though.
1720		2543
		2544	Will never block.
		2545
1721	=item $player_object->leave_link ($map, $x, $y)	2546	=item $player_object->leave_link ($map, $x, $y)
1722		2547
1723	Moves the player out of the specila link map onto the given map. If the	2548	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2549	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2550	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2551	fails, to the emergency map position.
1727		2552
1728	Might block.	2553	Might block.
1729		2554
1730	=cut	2555	=cut
		2556
		2557	sub link_map {
		2558	unless ($LINK_MAP) {
		2559	$LINK_MAP = cf::map::find "{link}"
		2560	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2561	$LINK_MAP->load;
		2562	}
		2563
		2564	$LINK_MAP
		2565	}
1731		2566
1732	sub cf::object::player::enter_link {	2567	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2568	my ($self) = @_;
1734		2569
1735	$self->deactivate_recursive;	2570	$self->deactivate_recursive;
1736		2571
1737	return if $self->map == $LINK_MAP;	2572	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2573
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2574	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2575	if $self->map && $self->map->{path} ne "{link}";
1741		2576
1742	$self->enter_map ($LINK_MAP, 20, 20);	2577	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2578	}
1744		2579
1745	sub cf::object::player::leave_link {	2580	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2581	my ($self, $map, $x, $y) = @_;
		2582
		2583	return unless $self->contr->active;
1747		2584
1748	my $link_pos = delete $self->{_link_pos};	2585	my $link_pos = delete $self->{_link_pos};
1749		2586
1750	unless ($map) {	2587	unless ($map) {
1751	# restore original map position	2588	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2602	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2603	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2604	if $x <=0 && $y <= 0;
1768		2605
1769	$map->load;	2606	$map->load;
1770	$map->load_diag;	2607	$map->load_neighbours;
1771		2608
1772	return unless $self->contr->active;	2609	return unless $self->contr->active;
1773	$self->activate_recursive;	2610	$self->activate_recursive;
		2611
		2612	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2613	$self->enter_map ($map, $x, $y);
1775	}	2614	}
1776		2615
1777	cf::player->attach (	2616	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2617
1781	# abort map switching before logout	2618	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2619	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2620	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2621	the new (success) or old (failed) map position. In either case, $done will
1785	};	2622	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2623
1791	# try to abort aborted map switching on player login :)	2624	Note that $check will be called with a potentially non-loaded map, so if
1792	# should happen only on crashes	2625	it needs a loaded map it has to call C<< ->load >>.
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808		2626
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2627	=cut
		2628
		2629	our $GOTOGEN;
1812		2630
1813	sub cf::object::player::goto {	2631	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2632	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2633
1816	$path = new cf::path $path;	2634	# do generation counting so two concurrent goto's will be executed in-order
		2635	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2636
1818	$self->enter_link;	2637	$self->enter_link;
1819		2638
1820	(async {	2639	(async {
1821	my $map = cf::map::find $path->as_string;	2640	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2641
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2642	# *tag paths override both path and x|y
		2643	if ($path =~ /^\*(.*)$/) {
		2644	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2645	my $ob = $obs[rand @obs];
		2646
		2647	# see if we actually can go there
		2648	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2649	$ob = $obs[rand @obs];
		2650	} else {
		2651	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2652	}
		2653	# else put us there anyways for now #d#
		2654
		2655	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2656	} else {
		2657	($path, $x, $y) = (undef, undef, undef);
		2658	}
		2659	}
		2660
		2661	my $map = eval {
		2662	my $map = defined $path ? cf::map::find $path : undef;
		2663
1825	# if $map;	2664	if ($map) {
1826		2665	$map = $map->customise_for ($self);
		2666	$map = $check->($map) if $check && $map;
		2667	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2668	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2669	}
1828		2670
		2671	$map
		2672	};
		2673
		2674	if ($@) {
		2675	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2676	LOG llevError | logBacktrace, Carp::longmess $@;
		2677	}
		2678
		2679	if ($gen == $self->{_goto_generation}) {
		2680	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2681	$self->leave_link ($map, $x, $y);
		2682	}
		2683
		2684	$done->() if $done;
1830	})->prio (1);	2685	})->prio (1);
1831	}	2686	}
1832		2687
1833	=item $player_object->enter_exit ($exit_object)	2688	=item $player_object->enter_exit ($exit_object)
1834		2689
…		…
1836		2691
1837	sub parse_random_map_params {	2692	sub parse_random_map_params {
1838	my ($spec) = @_;	2693	my ($spec) = @_;
1839		2694
1840	my $rmp = { # defaults	2695	my $rmp = { # defaults
1841	xsize => 10,	2696	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2697	ysize => (cf::rndm 15, 40),
		2698	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2699	#layout => string,
1843	};	2700	};
1844		2701
1845	for (split /\n/, $spec) {	2702	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2703	my ($k, $v) = split /\s+/, $_, 2;
1847		2704
…		…
1859	# that depends on the exit object	2716	# that depends on the exit object
1860		2717
1861	my $rmp = parse_random_map_params $exit->msg;	2718	my $rmp = parse_random_map_params $exit->msg;
1862		2719
1863	if ($exit->map) {	2720	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2721	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2722	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2723	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2724	$rmp->{origin_y} = $exit->y;
		2725
		2726	$exit->map->touch;
1868	}	2727	}
1869		2728
1870	$rmp->{random_seed} ||= $exit->random_seed;	2729	$rmp->{random_seed} ||= $exit->random_seed;
1871		2730
1872	my $data = cf::to_json $rmp;	2731	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1873	my $md5 = Digest::MD5::md5_hex $data;	2732	my $md5 = Digest::MD5::md5_hex $data;
		2733	my $meta = "$RANDOMDIR/$md5.meta";
1874		2734
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2735	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2736	aio_write $fh, 0, (length $data), $data, 0;
		2737	undef $fh;
		2738	aio_rename "$meta~", $meta;
1877		2739
		2740	my $slaying = "?random/$md5";
		2741
		2742	if ($exit->valid) {
1878	$exit->slaying ("?random/$md5");	2743	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2744	$exit->msg (undef);
		2745	}
1880	}	2746	}
1881	}	2747	}
1882		2748
1883	sub cf::object::player::enter_exit {	2749	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2750	my ($self, $exit) = @_;
…		…
1886	return unless $self->type == cf::PLAYER;	2752	return unless $self->type == cf::PLAYER;
1887		2753
1888	$self->enter_link;	2754	$self->enter_link;
1889		2755
1890	(async {	2756	(async {
1891	$self->deactivate_recursive; # just to be sure	2757	$Coro::current->{desc} = "enter_exit";
		2758
1892	unless (eval {	2759	unless (eval {
		2760	$self->deactivate_recursive; # just to be sure
		2761
		2762	# random map handling
		2763	{
		2764	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2765
1893	prepare_random_map $exit	2766	prepare_random_map $exit
1894	if $exit->slaying eq "/!";	2767	if $exit->slaying eq "/!";
		2768	}
1895		2769
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2770	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2771	my $x = $exit->stats->hp;
		2772	my $y = $exit->stats->sp;
1898		2773
		2774	$self->goto ($map, $x, $y);
		2775
		2776	# if exit is damned, update players death & WoR home-position
		2777	$self->contr->savebed ($map, $x, $y)
		2778	if $exit->flag (cf::FLAG_DAMNED);
		2779
1899	1;	2780	1
1900	}) {	2781	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2782	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2783	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2784	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2785	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2786
1906	warn "ERROR in enter_exit: $@";	2787	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2788	$self->leave_link;
1908	}	2789	}
1909	})->prio (1);	2790	})->prio (1);
…		…
1922		2803
1923	sub cf::client::send_drawinfo {	2804	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2805	my ($self, $text, $flags) = @_;
1925		2806
1926	utf8::encode $text;	2807	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2808	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2809	}
1929		2810
		2811	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2812
		2813	Send a drawinfo or msg packet to the client, formatting the msg for the
		2814	client if neccessary. C<$type> should be a string identifying the type of
		2815	the message, with C<log> being the default. If C<$color> is negative, suppress
		2816	the message unless the client supports the msg packet.
		2817
		2818	=cut
		2819
		2820	# non-persistent channels (usually the info channel)
		2821	our %CHANNEL = (
		2822	"c/identify" => {
		2823	id => "infobox",
		2824	title => "Identify",
		2825	reply => undef,
		2826	tooltip => "Items recently identified",
		2827	},
		2828	"c/examine" => {
		2829	id => "infobox",
		2830	title => "Examine",
		2831	reply => undef,
		2832	tooltip => "Signs and other items you examined",
		2833	},
		2834	"c/book" => {
		2835	id => "infobox",
		2836	title => "Book",
		2837	reply => undef,
		2838	tooltip => "The contents of a note or book",
		2839	},
		2840	"c/lookat" => {
		2841	id => "infobox",
		2842	title => "Look",
		2843	reply => undef,
		2844	tooltip => "What you saw there",
		2845	},
		2846	"c/who" => {
		2847	id => "infobox",
		2848	title => "Players",
		2849	reply => undef,
		2850	tooltip => "Shows players who are currently online",
		2851	},
		2852	"c/body" => {
		2853	id => "infobox",
		2854	title => "Body Parts",
		2855	reply => undef,
		2856	tooltip => "Shows which body parts you posess and are available",
		2857	},
		2858	"c/uptime" => {
		2859	id => "infobox",
		2860	title => "Uptime",
		2861	reply => undef,
		2862	tooltip => "How long the server has been running since last restart",
		2863	},
		2864	"c/mapinfo" => {
		2865	id => "infobox",
		2866	title => "Map Info",
		2867	reply => undef,
		2868	tooltip => "Information related to the maps",
		2869	},
		2870	"c/party" => {
		2871	id => "party",
		2872	title => "Party",
		2873	reply => "gsay ",
		2874	tooltip => "Messages and chat related to your party",
		2875	},
		2876	);
		2877
		2878	sub cf::client::send_msg {
		2879	my ($self, $channel, $msg, $color, @extra) = @_;
		2880
		2881	$msg = $self->pl->expand_cfpod ($msg);
		2882
		2883	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2884
		2885	# check predefined channels, for the benefit of C
		2886	if ($CHANNEL{$channel}) {
		2887	$channel = $CHANNEL{$channel};
		2888
		2889	$self->ext_msg (channel_info => $channel)
		2890	if $self->can_msg;
		2891
		2892	$channel = $channel->{id};
		2893
		2894	} elsif (ref $channel) {
		2895	# send meta info to client, if not yet sent
		2896	unless (exists $self->{channel}{$channel->{id}}) {
		2897	$self->{channel}{$channel->{id}} = $channel;
		2898	$self->ext_msg (channel_info => $channel)
		2899	if $self->can_msg;
		2900	}
		2901
		2902	$channel = $channel->{id};
		2903	}
		2904
		2905	return unless @extra || length $msg;
		2906
		2907	if ($self->can_msg) {
		2908	# default colour, mask it out
		2909	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2910	if $color & cf::NDI_DEF;
		2911
		2912	my $pkt = "msg "
		2913	. $self->{json_coder}->encode (
		2914	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2915	);
		2916
		2917	# try lzf for large packets
		2918	$pkt = "lzf " . Compress::LZF::compress $pkt
		2919	if 1024 <= length $pkt and $self->{can_lzf};
		2920
		2921	# split very large packets
		2922	if (8192 < length $pkt and $self->{can_lzf}) {
		2923	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2924	$pkt = "frag";
		2925	}
		2926
		2927	$self->send_packet ($pkt);
		2928	} else {
		2929	if ($color >= 0) {
		2930	# replace some tags by gcfclient-compatible ones
		2931	for ($msg) {
		2932	1 while
		2933	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2934	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2935	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2936	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2937	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2938	}
		2939
		2940	$color &= cf::NDI_COLOR_MASK;
		2941
		2942	utf8::encode $msg;
		2943
		2944	if (0 && $msg =~ /\[/) {
		2945	# COMMAND/INFO
		2946	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2947	} else {
		2948	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2949	$self->send_packet ("drawinfo $color $msg")
		2950	}
		2951	}
		2952	}
		2953	}
		2954
		2955	=item $client->ext_msg ($type, @msg)
		2956
		2957	Sends an ext event to the client.
		2958
		2959	=cut
		2960
		2961	sub cf::client::ext_msg($$@) {
		2962	my ($self, $type, @msg) = @_;
		2963
		2964	if ($self->extcmd == 2) {
		2965	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2966	} elsif ($self->extcmd == 1) { # TODO: remove
		2967	push @msg, msgtype => "event_$type";
		2968	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2969	}
		2970	}
		2971
		2972	=item $client->ext_reply ($msgid, @msg)
		2973
		2974	Sends an ext reply to the client.
		2975
		2976	=cut
		2977
		2978	sub cf::client::ext_reply($$@) {
		2979	my ($self, $id, @msg) = @_;
		2980
		2981	if ($self->extcmd == 2) {
		2982	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2983	} elsif ($self->extcmd == 1) {
		2984	#TODO: version 1, remove
		2985	unshift @msg, msgtype => "reply", msgid => $id;
		2986	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2987	}
		2988	}
1930		2989
1931	=item $success = $client->query ($flags, "text", \&cb)	2990	=item $success = $client->query ($flags, "text", \&cb)
1932		2991
1933	Queues a query to the client, calling the given callback with	2992	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2993	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2994	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2995
1937	Queries can fail, so check the return code. Or don't, as queries will become	2996	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2997	become reliable at some point in the future.
1939		2998
1940	=cut	2999	=cut
1941		3000
1942	sub cf::client::query {	3001	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	3002	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	3010	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3011	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		3012
1954	$self->send_packet ($self->{query_queue}[0][0])	3013	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	3014	if @{ $self->{query_queue} } == 1;
		3015
		3016	1
1956	}	3017	}
1957		3018
1958	cf::client->attach (	3019	cf::client->attach (
		3020	on_connect => sub {
		3021	my ($ns) = @_;
		3022
		3023	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3024	},
1959	on_reply => sub {	3025	on_reply => sub {
1960	my ($ns, $msg) = @_;	3026	my ($ns, $msg) = @_;
1961		3027
1962	# this weird shuffling is so that direct followup queries	3028	# this weird shuffling is so that direct followup queries
1963	# get handled first	3029	# get handled first
1964	my $queue = delete $ns->{query_queue}	3030	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	3031	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		3032
1967	(shift @$queue)->[1]->($msg);	3033	(shift @$queue)->[1]->($msg);
		3034	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		3035
1969	push @{ $ns->{query_queue} }, @$queue;	3036	push @{ $ns->{query_queue} }, @$queue;
1970		3037
1971	if (@{ $ns->{query_queue} } == @$queue) {	3038	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	3039	if (@$queue) {
…		…
1974	} else {	3041	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3042	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	3043	}
1977	}	3044	}
1978	},	3045	},
		3046	on_exticmd => sub {
		3047	my ($ns, $buf) = @_;
		3048
		3049	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3050
		3051	if (ref $msg) {
		3052	my ($type, $reply, @payload) =
		3053	"ARRAY" eq ref $msg
		3054	? @$msg
		3055	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3056
		3057	my @reply;
		3058
		3059	if (my $cb = $EXTICMD{$type}) {
		3060	@reply = $cb->($ns, @payload);
		3061	}
		3062
		3063	$ns->ext_reply ($reply, @reply)
		3064	if $reply;
		3065
		3066	} else {
		3067	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3068	}
		3069
		3070	cf::override;
		3071	},
1979	);	3072	);
1980		3073
1981	=item $client->async (\&cb)	3074	=item $client->async (\&cb)
1982		3075
1983	Create a new coroutine, running the specified callback. The coroutine will	3076	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	3117	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	3118	our $safe_hole = new Safe::Hole;
2026		3119
2027	$SIG{FPE} = 'IGNORE';	3120	$SIG{FPE} = 'IGNORE';
2028		3121
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3122	$safe->permit_only (Opcode::opset qw(
		3123	:base_core :base_mem :base_orig :base_math
		3124	grepstart grepwhile mapstart mapwhile
		3125	sort time
		3126	));
2030		3127
2031	# here we export the classes and methods available to script code	3128	# here we export the classes and methods available to script code
2032		3129
2033	=pod	3130	=pod
2034		3131
2035	The following fucntions and emthods are available within a safe environment:	3132	The following functions and methods are available within a safe environment:
2036		3133
2037	cf::object contr pay_amount pay_player map	3134	cf::object
		3135	contr pay_amount pay_player map x y force_find force_add destroy
		3136	insert remove name archname title slaying race decrease split
		3137
2038	cf::object::player player	3138	cf::object::player
2039	cf::player peaceful	3139	player
2040	cf::map trigger	3140
		3141	cf::player
		3142	peaceful
		3143
		3144	cf::map
		3145	trigger
2041		3146
2042	=cut	3147	=cut
2043		3148
2044	for (	3149	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3150	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3151	insert remove inv nrof name archname title slaying race
		3152	decrease split destroy change_exp)],
2046	["cf::object::player" => qw(player)],	3153	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3154	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	3155	["cf::map" => qw(trigger)],
2049	) {	3156	) {
2050	no strict 'refs';	3157	no strict 'refs';
…		…
2121	=back	3228	=back
2122		3229
2123	=cut	3230	=cut
2124		3231
2125	#############################################################################	3232	#############################################################################
		3233	# the server's init and main functions
2126		3234
2127	=head2 EXTENSION DATABASE SUPPORT	3235	sub load_facedata($) {
		3236	my ($path) = @_;
2128		3237
2129	Crossfire maintains a very simple database for extension use. It can	3238	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3239	# for this (global event?)
2131	excludes objects.	3240	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3241
2133	The parameter C<$family> should best start with the name of the extension	3242	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3243
2136	=over 4	3244	warn "loading facedata from $path\n";
2137		3245
2138	=item $hashref = cf::db_get $family	3246	my $facedata;
		3247	0 < aio_load $path, $facedata
		3248	or die "$path: $!";
2139		3249
2140	Return a hashref for use by the extension C<$family>, which can be	3250	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3251
2144	=item $value = cf::db_get $family => $key	3252	$facedata->{version} == 2
		3253	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3254
2146	Returns a single value from the database	3255	# patch in the exptable
2147		3256	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3257	type => FT_RSRC,
2149		3258	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3259	};
		3260	cf::cede_to_tick;
2199		3261
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3262	{
		3263	my $faces = $facedata->{faceinfo};
2204		3264
2205	sub db_get($;$) {	3265	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3266	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210		3267
2211	sub db_put($$;$) {	3268	cf::face::set_visibility $idx, $info->{visibility};
2212	if (@_ >= 3) {	3269	cf::face::set_magicmap $idx, $info->{magicmap};
2213	$DB->{$_[0]}{$_[1]} = $_[2];	3270	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2214	} else {	3271	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219		3272
2220	cf::global->attach (	3273	cf::cede_to_tick;
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3274	}
2225	);
2226	}
2227		3275
2228	#############################################################################	3276	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3277	next unless $info->{smooth};
2230		3278
2231	sub cfg_load {	3279	my $idx = cf::face::find $face
		3280	or next;
		3281
		3282	if (my $smooth = cf::face::find $info->{smooth}) {
		3283	cf::face::set_smooth $idx, $smooth;
		3284	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3285	} else {
		3286	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3287	}
		3288
		3289	cf::cede_to_tick;
		3290	}
		3291	}
		3292
		3293	{
		3294	my $anims = $facedata->{animinfo};
		3295
		3296	while (my ($anim, $info) = each %$anims) {
		3297	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3298	cf::cede_to_tick;
		3299	}
		3300
		3301	cf::anim::invalidate_all; # d'oh
		3302	}
		3303
		3304	{
		3305	# TODO: for gcfclient pleasure, we should give resources
		3306	# that gcfclient doesn't grok a >10000 face index.
		3307	my $res = $facedata->{resource};
		3308
		3309	while (my ($name, $info) = each %$res) {
		3310	if (defined $info->{type}) {
		3311	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3312	my $data;
		3313
		3314	if ($info->{type} & 1) {
		3315	# prepend meta info
		3316
		3317	my $meta = $enc->encode ({
		3318	name => $name,
		3319	%{ $info->{meta} || {} },
		3320	});
		3321
		3322	$data = pack "(w/a*)*", $meta, $info->{data};
		3323	} else {
		3324	$data = $info->{data};
		3325	}
		3326
		3327	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3328	cf::face::set_type $idx, $info->{type};
		3329	} else {
		3330	$RESOURCE{$name} = $info;
		3331	}
		3332
		3333	cf::cede_to_tick;
		3334	}
		3335	}
		3336
		3337	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3338
		3339	1
		3340	}
		3341
		3342	cf::global->attach (on_resource_update => sub {
		3343	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3344	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3345
		3346	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3347	my $sound = $soundconf->{compat}[$_]
		3348	or next;
		3349
		3350	my $face = cf::face::find "sound/$sound->[1]";
		3351	cf::sound::set $sound->[0] => $face;
		3352	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3353	}
		3354
		3355	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3356	my $face = cf::face::find "sound/$v";
		3357	cf::sound::set $k => $face;
		3358	}
		3359	}
		3360	});
		3361
		3362	register_exticmd fx_want => sub {
		3363	my ($ns, $want) = @_;
		3364
		3365	while (my ($k, $v) = each %$want) {
		3366	$ns->fx_want ($k, $v);
		3367	}
		3368	};
		3369
		3370	sub load_resource_file($) {
		3371	my $guard = lock_acquire "load_resource_file";
		3372
		3373	my $status = load_resource_file_ $_[0];
		3374	get_slot 0.1, 100;
		3375	cf::arch::commit_load;
		3376
		3377	$status
		3378	}
		3379
		3380	sub reload_regions {
		3381	# HACK to clear player env face cache, we need some signal framework
		3382	# for this (global event?)
		3383	%ext::player_env::MUSIC_FACE_CACHE = ();
		3384
		3385	load_resource_file "$MAPDIR/regions"
		3386	or die "unable to load regions file\n";
		3387
		3388	for (cf::region::list) {
		3389	$_->{match} = qr/$_->{match}/
		3390	if exists $_->{match};
		3391	}
		3392	}
		3393
		3394	sub reload_facedata {
		3395	load_facedata "$DATADIR/facedata"
		3396	or die "unable to load facedata\n";
		3397	}
		3398
		3399	sub reload_archetypes {
		3400	load_resource_file "$DATADIR/archetypes"
		3401	or die "unable to load archetypes\n";
		3402	}
		3403
		3404	sub reload_treasures {
		3405	load_resource_file "$DATADIR/treasures"
		3406	or die "unable to load treasurelists\n";
		3407	}
		3408
		3409	sub reload_resources {
		3410	warn "reloading resource files...\n";
		3411
		3412	reload_facedata;
		3413	reload_archetypes;
		3414	reload_regions;
		3415	reload_treasures;
		3416
		3417	warn "finished reloading resource files\n";
		3418	}
		3419
		3420	sub init {
		3421	my $guard = freeze_mainloop;
		3422
		3423	evthread_start IO::AIO::poll_fileno;
		3424
		3425	reload_resources;
		3426	}
		3427
		3428	sub reload_config {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3429	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3430	or return;
2234		3431
2235	local $/;	3432	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3433	*CFG = YAML::Load <$fh>;
2237		3434
2238	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3435	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2239		3436
2240	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3437	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2241	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3438	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2251		3448
2252	sub main {	3449	sub main {
2253	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2256	async { Event::one_event };	3453	(async {
		3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
		3456	})->prio (Coro::PRIO_MAX);
2257	};	3457	};
2258		3458
2259	cfg_load;	3459	{
2260	db_load;	3460	my $guard = freeze_mainloop;
		3461	reload_config;
		3462	db_init;
2261	load_extensions;	3463	load_extensions;
		3464
		3465	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3466	}
		3467
2262	Event::loop;	3468	EV::loop;
2263	}	3469	}
2264		3470
2265	#############################################################################	3471	#############################################################################
2266	# initialisation and cleanup	3472	# initialisation and cleanup
2267		3473
2268	# install some emergency cleanup handlers	3474	# install some emergency cleanup handlers
2269	BEGIN {	3475	BEGIN {
		3476	our %SIGWATCHER = ();
2270	for my $signal (qw(INT HUP TERM)) {	3477	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3478	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2272	data => WF_AUTOCANCEL,
2273	signal => $signal,
2274	cb => sub {
2275	cf::cleanup "SIG$signal";	3479	cf::cleanup "SIG$signal";
2276	},
2277	);	3480	};
		3481	}
		3482	}
		3483
		3484	sub write_runtime_sync {
		3485	my $runtime = "$LOCALDIR/runtime";
		3486
		3487	# first touch the runtime file to show we are still running:
		3488	# the fsync below can take a very very long time.
		3489
		3490	IO::AIO::aio_utime $runtime, undef, undef;
		3491
		3492	my $guard = cf::lock_acquire "write_runtime";
		3493
		3494	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3495	or return;
		3496
		3497	my $value = $cf::RUNTIME + 90 + 10;
		3498	# 10 is the runtime save interval, for a monotonic clock
		3499	# 60 allows for the watchdog to kill the server.
		3500
		3501	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3502	and return;
		3503
		3504	# always fsync - this file is important
		3505	aio_fsync $fh
		3506	and return;
		3507
		3508	# touch it again to show we are up-to-date
		3509	aio_utime $fh, undef, undef;
		3510
		3511	close $fh
		3512	or return;
		3513
		3514	aio_rename "$runtime~", $runtime
		3515	and return;
		3516
		3517	warn "runtime file written.\n";
		3518
2278	}	3519	1
		3520	}
		3521
		3522	our $uuid_lock;
		3523	our $uuid_skip;
		3524
		3525	sub write_uuid_sync($) {
		3526	$uuid_skip ||= $_[0];
		3527
		3528	return if $uuid_lock;
		3529	local $uuid_lock = 1;
		3530
		3531	my $uuid = "$LOCALDIR/uuid";
		3532
		3533	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3534	or return;
		3535
		3536	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3537	$uuid_skip = 0;
		3538
		3539	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3540	and return;
		3541
		3542	# always fsync - this file is important
		3543	aio_fsync $fh
		3544	and return;
		3545
		3546	close $fh
		3547	or return;
		3548
		3549	aio_rename "$uuid~", $uuid
		3550	and return;
		3551
		3552	warn "uuid file written ($value).\n";
		3553
		3554	1
		3555
		3556	}
		3557
		3558	sub write_uuid($$) {
		3559	my ($skip, $sync) = @_;
		3560
		3561	$sync ? write_uuid_sync $skip
		3562	: async { write_uuid_sync $skip };
2279	}	3563	}
2280		3564
2281	sub emergency_save() {	3565	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3566	my $freeze_guard = cf::freeze_mainloop;
2283		3567
2284	warn "enter emergency perl save\n";	3568	warn "enter emergency perl save\n";
2285		3569
2286	cf::sync_job {	3570	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3571	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3572	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3573	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3574	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3575	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3576	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3577	$pl->valid or next;
		3578	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3579	$pl->save;
2295	}	3580	}
2296	warn "end emergency player save\n";	3581	warn "end emergency player save\n";
2297		3582
2298	warn "begin emergency map save\n";	3583	warn "begin emergency map save\n";
…		…
2300	my $map = $cf::MAP{$path} or next;	3585	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3586	$map->valid or next;
2302	$map->save;	3587	$map->save;
2303	}	3588	}
2304	warn "end emergency map save\n";	3589	warn "end emergency map save\n";
		3590
		3591	warn "begin emergency database checkpoint\n";
		3592	BDB::db_env_txn_checkpoint $DB_ENV;
		3593	warn "end emergency database checkpoint\n";
		3594
		3595	warn "begin write uuid\n";
		3596	write_uuid_sync 1;
		3597	warn "end write uuid\n";
2305	};	3598	};
2306		3599
2307	warn "leave emergency perl save\n";	3600	warn "leave emergency perl save\n";
2308	}	3601	}
2309		3602
		3603	sub post_cleanup {
		3604	my ($make_core) = @_;
		3605
		3606	warn Carp::longmess "post_cleanup backtrace"
		3607	if $make_core;
		3608	}
		3609
		3610	# a safer delete_package, copied from Symbol
		3611	sub clear_package($) {
		3612	my $pkg = shift;
		3613
		3614	# expand to full symbol table name if needed
		3615	unless ($pkg =~ /^main::.*::$/) {
		3616	$pkg = "main$pkg" if $pkg =~ /^::/;
		3617	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3618	$pkg .= '::' unless $pkg =~ /::$/;
		3619	}
		3620
		3621	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3622	my $stem_symtab = *{$stem}{HASH};
		3623
		3624	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3625	or return;
		3626
		3627	# clear all symbols
		3628	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3629	for my $name (keys %$leaf_symtab) {
		3630	_gv_clear *{"$pkg$name"};
		3631	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3632	}
		3633	warn "cleared package #$pkg\n";#d#
		3634	}
		3635
		3636	our $RELOAD; # how many times to reload
		3637
2310	sub reload() {	3638	sub do_reload_perl() {
2311	# can/must only be called in main	3639	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3640	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3641	warn "can only reload from main coroutine";
2314	return;	3642	return;
2315	}	3643	}
2316		3644
		3645	return if $RELOAD++;
		3646
		3647	while ($RELOAD) {
2317	warn "reloading...";	3648	warn "reloading...";
2318		3649
2319	warn "freezing server";	3650	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3651
		3652	cf::sync_job {
		3653	cf::write_runtime_sync; # external watchdog should not bark
2321	cf::emergency_save;	3654	cf::emergency_save;
		3655	cf::write_runtime_sync; # external watchdog should not bark
2322		3656
2323	warn "sync database to disk";	3657	warn "syncing database to disk";
2324	cf::db_sync;	3658	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3659
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3660	# if anything goes wrong in here, we should simply crash as we already saved
2329		3661
2330	warn "cancel all watchers";	3662	warn "flushing outstanding aio requests";
2331	for (Event::all_watchers) {	3663	while (IO::AIO::nreqs || BDB::nreqs) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3664	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2333	}
2334
2335	warn "cancel all extension coros";
2336	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();
2338
2339	warn "remove commands";
2340	%COMMAND = ();
2341
2342	warn "remove ext commands";
2343	%EXTCMD = ();
2344
2345	warn "unload/nuke all extensions";
2346	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";
2348
2349	if (my $cb = $pkg->can ("unload")) {
2350	eval {
2351	$cb->($pkg);
2352	1
2353	} or warn "$pkg unloaded, but with errors: $@";
2354	}	3665	}
2355		3666
		3667	warn "cancelling all extension coros";
		3668	$_->cancel for values %EXT_CORO;
		3669	%EXT_CORO = ();
		3670
		3671	warn "removing commands";
		3672	%COMMAND = ();
		3673
		3674	warn "removing ext/exti commands";
		3675	%EXTCMD = ();
		3676	%EXTICMD = ();
		3677
		3678	warn "unloading/nuking all extensions";
		3679	for my $pkg (@EXTS) {
2356	warn "... nuking $pkg";	3680	warn "... unloading $pkg";
2357	Symbol::delete_package $pkg;
2358	}
2359		3681
2360	warn "unload all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363
2364	warn "removing <$k>";
2365	delete $INC{$k};
2366
2367	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;
2369
2370	if (my $cb = $k->can ("unload_module")) {	3682	if (my $cb = $pkg->can ("unload")) {
		3683	eval {
2371	$cb->();	3684	$cb->($pkg);
		3685	1
		3686	} or warn "$pkg unloaded, but with errors: $@";
		3687	}
		3688
		3689	warn "... clearing $pkg";
		3690	clear_package $pkg;
2372	}	3691	}
2373		3692
2374	Symbol::delete_package $k;	3693	warn "unloading all perl modules loaded from $LIBDIR";
		3694	while (my ($k, $v) = each %INC) {
		3695	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3696
		3697	warn "... unloading $k";
		3698	delete $INC{$k};
		3699
		3700	$k =~ s/\.pm$//;
		3701	$k =~ s/\//::/g;
		3702
		3703	if (my $cb = $k->can ("unload_module")) {
		3704	$cb->();
		3705	}
		3706
		3707	clear_package $k;
2375	}	3708	}
2376		3709
2377	warn "get rid of safe::, as good as possible";	3710	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3711	clear_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3712	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3713
2381	warn "unload cf.pm \"a bit\"";	3714	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3715	delete $INC{"cf.pm"};
		3716	delete $INC{"cf/pod.pm"};
2383		3717
2384	# don't, removes xs symbols, too,	3718	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3719	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3720	#clear_package __PACKAGE__;
2387		3721
		3722	warn "unload completed, starting to reload now";
		3723
2388	warn "reloading cf.pm";	3724	warn "reloading cf.pm";
2389	require cf;	3725	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3726	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3727
2392	warn "load config and database again";	3728	warn "loading config and database again";
2393	cf::cfg_load;	3729	cf::reload_config;
2394	cf::db_load;
2395		3730
2396	warn "load extensions";	3731	warn "loading extensions";
2397	cf::load_extensions;	3732	cf::load_extensions;
2398		3733
2399	warn "reattach attachments to objects/players";	3734	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3735	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3736	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3737	reattach $_ for values %MAP;
		3738	warn "reattaching attachments to players";
		3739	reattach $_ for values %PLAYER;
		3740
		3741	warn "leaving sync_job";
		3742
		3743	1
		3744	} or do {
		3745	warn $@;
		3746	cf::cleanup "error while reloading, exiting.";
		3747	};
		3748
		3749	warn "reloaded";
		3750	--$RELOAD;
		3751	}
		3752	};
		3753
		3754	our $RELOAD_WATCHER; # used only during reload
		3755
		3756	sub reload_perl() {
		3757	# doing reload synchronously and two reloads happen back-to-back,
		3758	# coro crashes during coro_state_free->destroy here.
		3759
		3760	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3761	do_reload_perl;
		3762	undef $RELOAD_WATCHER;
2403	};	3763	};
2404
2405	if ($@) {
2406	warn $@;
2407	warn "error while reloading, exiting.";
2408	exit 1;
2409	}
2410
2411	warn "reloaded";
2412	};
2413
2414	#############################################################################
2415
2416	unless ($LINK_MAP) {
2417	$LINK_MAP = cf::map::new;
2418
2419	$LINK_MAP->width (41);
2420	$LINK_MAP->height (41);
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,
2429	cb => sub {
2430	$_[0]->w->cancel;
2431
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});
2450
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3764	}
2456		3765
2457	register_command "reload" => sub {	3766	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3767	my ($who, $arg) = @_;
2459		3768
2460	if ($who->flag (FLAG_WIZ)) {	3769	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3770	$who->message ("reloading server.");
		3771	async {
		3772	$Coro::current->{desc} = "perl_reload";
		3773	reload_perl;
		3774	};
2464	}	3775	}
2465	};	3776	};
2466		3777
2467	unshift @INC, $LIBDIR;	3778	unshift @INC, $LIBDIR;
2468		3779
2469	$TICK_WATCHER = Event->timer (	3780	my $bug_warning = 0;
2470	reentrant => 0,
2471	prio => 0,
2472	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,
2474	cb => sub {
2475	$NOW = Event::time;
2476		3781
		3782	our @WAIT_FOR_TICK;
		3783	our @WAIT_FOR_TICK_BEGIN;
		3784
		3785	sub wait_for_tick {
		3786	return if tick_inhibit || $Coro::current == $Coro::main;
		3787
		3788	my $signal = new Coro::Signal;
		3789	push @WAIT_FOR_TICK, $signal;
		3790	$signal->wait;
		3791	}
		3792
		3793	sub wait_for_tick_begin {
		3794	return if tick_inhibit || $Coro::current == $Coro::main;
		3795
		3796	my $signal = new Coro::Signal;
		3797	push @WAIT_FOR_TICK_BEGIN, $signal;
		3798	$signal->wait;
		3799	}
		3800
		3801	sub tick {
		3802	if ($Coro::current != $Coro::main) {
		3803	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3804	unless ++$bug_warning > 10;
		3805	return;
		3806	}
		3807
2477	cf::server_tick; # one server iteration	3808	cf::server_tick; # one server iteration
2478	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;
2480		3809
2481	$WAIT_FOR_TICK->broadcast;	3810	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3811	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2483		3812	Coro::async_pool {
2484	# if we are delayed by four ticks or more, skip them all	3813	$Coro::current->{desc} = "runtime saver";
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2486
2487	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;
2489	},
2490	);
2491
2492	IO::AIO::max_poll_time $TICK * 0.2;
2493
2494	Event->io (
2495	fd => IO::AIO::poll_fileno,
2496	poll => 'r',
2497	prio => 5,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,
2504	after => 0,
2505	interval => 10,
2506	cb => sub {
2507	(Coro::unblock_sub {
2508	write_runtime	3814	write_runtime_sync
2509	or warn "ERROR: unable to write runtime file: $!";	3815	or warn "ERROR: unable to write runtime file: $!";
2510	})->();	3816	};
2511	},	3817	}
2512	);	3818
		3819	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3820	$sig->send;
		3821	}
		3822	while (my $sig = shift @WAIT_FOR_TICK) {
		3823	$sig->send;
		3824	}
		3825
		3826	$LOAD = ($NOW - $TICK_START) / $TICK;
		3827	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3828
		3829	if (0) {
		3830	if ($NEXT_TICK) {
		3831	my $jitter = $TICK_START - $NEXT_TICK;
		3832	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3833	warn "jitter $JITTER\n";#d#
		3834	}
		3835	}
		3836	}
		3837
		3838	{
		3839	# configure BDB
		3840
		3841	BDB::min_parallel 8;
		3842	BDB::max_poll_reqs $TICK * 0.1;
		3843	$AnyEvent::BDB::WATCHER->priority (1);
		3844
		3845	unless ($DB_ENV) {
		3846	$DB_ENV = BDB::db_env_create;
		3847	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3848	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3849	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3850	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3851	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3852
		3853	cf::sync_job {
		3854	eval {
		3855	BDB::db_env_open
		3856	$DB_ENV,
		3857	$BDBDIR,
		3858	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3859	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3860	0666;
		3861
		3862	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3863	};
		3864
		3865	cf::cleanup "db_env_open(db): $@" if $@;
		3866	};
		3867	}
		3868
		3869	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3870	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3871	};
		3872	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3873	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3874	};
		3875	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3876	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3877	};
		3878	}
		3879
		3880	{
		3881	# configure IO::AIO
		3882
		3883	IO::AIO::min_parallel 8;
		3884	IO::AIO::max_poll_time $TICK * 0.1;
		3885	undef $AnyEvent::AIO::WATCHER;
		3886	}
		3887
		3888	my $_log_backtrace;
		3889
		3890	sub _log_backtrace {
		3891	my ($msg, @addr) = @_;
		3892
		3893	$msg =~ s/\n//;
		3894
		3895	# limit the # of concurrent backtraces
		3896	if ($_log_backtrace < 2) {
		3897	++$_log_backtrace;
		3898	async {
		3899	$Coro::current->{desc} = "abt $msg";
		3900
		3901	my @bt = fork_call {
		3902	@addr = map { sprintf "%x", $_ } @addr;
		3903	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3904	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3905	or die "addr2line: $!";
		3906
		3907	my @funcs;
		3908	my @res = <$fh>;
		3909	chomp for @res;
		3910	while (@res) {
		3911	my ($func, $line) = splice @res, 0, 2, ();
		3912	push @funcs, "[$func] $line";
		3913	}
		3914
		3915	@funcs
		3916	};
		3917
		3918	LOG llevInfo, "[ABT] $msg\n";
		3919	LOG llevInfo, "[ABT] $_\n" for @bt;
		3920	--$_log_backtrace;
		3921	};
		3922	} else {
		3923	LOG llevInfo, "[ABT] $msg\n";
		3924	LOG llevInfo, "[ABT] [suppressed]\n";
		3925	}
		3926	}
		3927
		3928	# load additional modules
		3929	use cf::pod;
2513		3930
2514	END { cf::emergency_save }	3931	END { cf::emergency_save }
2515		3932
2516	1	3933	1
2517		3934

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