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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.164 by root, Thu Jan 11 01:24:25 2007 UTC vs.
Revision 1.441 by root, Sat Aug 30 05:19:03 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	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	sub unlink_save {
522	my ($self) = @_;
523
524	utf8::encode (my $save = $self->save_path);
525	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
526	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
527	}
528
529	package cf;
530		727
531	#############################################################################	728	#############################################################################
532		729
533	=head2 ATTACHABLE OBJECTS	730	=head2 ATTACHABLE OBJECTS
534		731
…		…
536	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")
537	to it. All such attachable objects support the following methods.	734	to it. All such attachable objects support the following methods.
538		735
539	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>
540	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
541	crossfire+).	738	Deliantra).
542		739
543	=over 4	740	=over 4
544		741
545	=item $attachable->attach ($attachment, key => $value...)	742	=item $attachable->attach ($attachment, key => $value...)
546		743
…		…
660	our @CB_TYPE = (); # registry for type (cf-object class) based events	857	our @CB_TYPE = (); # registry for type (cf-object class) based events
661	our @CB_MAP = ();	858	our @CB_MAP = ();
662		859
663	my %attachment;	860	my %attachment;
664		861
		862	sub cf::attachable::thawer_merge {
		863	# simply override everything except _meta
		864	local $_[0]{_meta};
		865	%{$_[0]} = %{$_[1]};
		866	}
		867
665	sub _attach_cb($$$$) {	868	sub _attach_cb($$$$) {
666	my ($registry, $event, $prio, $cb) = @_;	869	my ($registry, $event, $prio, $cb) = @_;
667		870
668	use sort 'stable';	871	use sort 'stable';
669		872
…		…
703	$registry = $CB_TYPE[$object_type] ||= [];	906	$registry = $CB_TYPE[$object_type] ||= [];
704		907
705	} elsif ($type eq "subtype") {	908	} elsif ($type eq "subtype") {
706	defined $object_type or Carp::croak "subtype specified without type";	909	defined $object_type or Carp::croak "subtype specified without type";
707	my $object_subtype = shift @arg;	910	my $object_subtype = shift @arg;
708	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	911	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
709		912
710	} elsif ($type eq "package") {	913	} elsif ($type eq "package") {
711	my $pkg = shift @arg;	914	my $pkg = shift @arg;
712		915
713	while (my ($name, $id) = each %cb_id) {	916	while (my ($name, $id) = each %cb_id) {
…		…
742	_attach $registry, $klass, @attach;	945	_attach $registry, $klass, @attach;
743	}	946	}
744		947
745	$obj->{$name} = \%arg;	948	$obj->{$name} = \%arg;
746	} else {	949	} else {
747	warn "object uses attachment '$name' that is not available, postponing.\n";	950	warn "object uses attachment '$name' which is not available, postponing.\n";
748	}	951	}
749		952
750	$obj->{_attachment}{$name} = undef;	953	$obj->{_attachment}{$name} = undef;
751	}	954	}
752		955
…		…
754	if (ref $_[0]) {	957	if (ref $_[0]) {
755	_object_attach @_;	958	_object_attach @_;
756	} else {	959	} else {
757	_attach shift->_attach_registry, @_;	960	_attach shift->_attach_registry, @_;
758	}	961	}
		962	_recalc_want;
759	};	963	};
760		964
761	# all those should be optimised	965	# all those should be optimised
762	sub cf::attachable::detach {	966	sub cf::attachable::detach {
763	my ($obj, $name) = @_;	967	my ($obj, $name) = @_;
…		…
766	delete $obj->{_attachment}{$name};	970	delete $obj->{_attachment}{$name};
767	reattach ($obj);	971	reattach ($obj);
768	} else {	972	} else {
769	Carp::croak "cannot, currently, detach class attachments";	973	Carp::croak "cannot, currently, detach class attachments";
770	}	974	}
		975	_recalc_want;
771	};	976	};
772		977
773	sub cf::attachable::attached {	978	sub cf::attachable::attached {
774	my ($obj, $name) = @_;	979	my ($obj, $name) = @_;
775		980
…		…
790	";	995	";
791	die if $@;	996	die if $@;
792	}	997	}
793		998
794	our $override;	999	our $override;
795	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?
796		1001
797	sub override {	1002	sub override {
798	$override = 1;	1003	$override = 1;
799	@invoke_results = ();	1004	@INVOKE_RESULTS = (@_);
800	}	1005	}
801		1006
802	sub do_invoke {	1007	sub do_invoke {
803	my $event = shift;	1008	my $event = shift;
804	my $callbacks = shift;	1009	my $callbacks = shift;
805		1010
806	@invoke_results = ();	1011	@INVOKE_RESULTS = ();
807		1012
808	local $override;	1013	local $override;
809		1014
810	for (@$callbacks) {	1015	for (@$callbacks) {
811	eval { &{$_->[1]} };	1016	eval { &{$_->[1]} };
…		…
820	}	1025	}
821		1026
822	0	1027	0
823	}	1028	}
824		1029
825	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1030	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
826		1031
827	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
828		1033
829	Generate an object-specific event with the given arguments.	1034	Generate an object-specific event with the given arguments.
830		1035
831	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
832	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
833	results (if you must, access C<@cf::invoke_results> directly).	1038	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
834		1039
835	=back	1040	=back
836		1041
837	=cut	1042	=cut
838		1043
839	#############################################################################	1044	#############################################################################
840	# 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	}
841		1088
842	sub reattach {	1089	sub reattach {
843	# basically do the same as instantiate, without calling instantiate	1090	# basically do the same as instantiate, without calling instantiate
844	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
845		1095
846	my $registry = $obj->registry;	1096	my $registry = $obj->registry;
847		1097
848	@$registry = ();	1098	@$registry = ();
849		1099
…		…
864	cf::attachable->attach (	1114	cf::attachable->attach (
865	prio => -1000000,	1115	prio => -1000000,
866	on_instantiate => sub {	1116	on_instantiate => sub {
867	my ($obj, $data) = @_;	1117	my ($obj, $data) = @_;
868		1118
869	$data = from_json $data;	1119	$data = decode_json $data;
870		1120
871	for (@$data) {	1121	for (@$data) {
872	my ($name, $args) = @$_;	1122	my ($name, $args) = @$_;
873		1123
874	$obj->attach ($name, %{$args || {} });	1124	$obj->attach ($name, %{$args || {} });
…		…
890	sub object_freezer_save {	1140	sub object_freezer_save {
891	my ($filename, $rdata, $objs) = @_;	1141	my ($filename, $rdata, $objs) = @_;
892		1142
893	sync_job {	1143	sync_job {
894	if (length $$rdata) {	1144	if (length $$rdata) {
		1145	utf8::decode (my $decname = $filename);
895	warn sprintf "saving %s (%d,%d)\n",	1146	warn sprintf "saving %s (%d,%d)\n",
896	$filename, length $$rdata, scalar @$objs;	1147	$decname, length $$rdata, scalar @$objs;
897		1148
898	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1149	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
899	chmod SAVE_MODE, $fh;	1150	aio_chmod $fh, SAVE_MODE;
900	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1151	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
901	aio_fsync $fh;	1152	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1153	aio_close $fh;
903		1154
904	if (@$objs) {	1155	if (@$objs) {
905	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) {
906	chmod SAVE_MODE, $fh;	1157	aio_chmod $fh, SAVE_MODE;
907	my $data = Storable::nfreeze { version => 1, objs => $objs };	1158	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
908	aio_write $fh, 0, (length $data), $data, 0;	1159	aio_write $fh, 0, (length $data), $data, 0;
909	aio_fsync $fh;	1160	aio_fsync $fh if $cf::USE_FSYNC;
910	close $fh;	1161	aio_close $fh;
911	aio_rename "$filename.pst~", "$filename.pst";	1162	aio_rename "$filename.pst~", "$filename.pst";
912	}	1163	}
913	} else {	1164	} else {
914	aio_unlink "$filename.pst";	1165	aio_unlink "$filename.pst";
915	}	1166	}
…		…
920	}	1171	}
921	} else {	1172	} else {
922	aio_unlink $filename;	1173	aio_unlink $filename;
923	aio_unlink "$filename.pst";	1174	aio_unlink "$filename.pst";
924	}	1175	}
925	}	1176	};
926	}	1177	}
927		1178
928	sub object_freezer_as_string {	1179	sub object_freezer_as_string {
929	my ($rdata, $objs) = @_;	1180	my ($rdata, $objs) = @_;
930		1181
…		…
942	or return;	1193	or return;
943		1194
944	unless (aio_stat "$filename.pst") {	1195	unless (aio_stat "$filename.pst") {
945	(aio_load "$filename.pst", $av) >= 0	1196	(aio_load "$filename.pst", $av) >= 0
946	or return;	1197	or return;
		1198
947	$av = eval { (Storable::thaw $av)->{objs} };	1199	my $st = eval { Coro::Storable::thaw $av };
		1200	$av = $st->{objs};
948	}	1201	}
949		1202
		1203	utf8::decode (my $decname = $filename);
950	warn sprintf "loading %s (%d)\n",	1204	warn sprintf "loading %s (%d,%d)\n",
951	$filename, length $data, scalar @{$av || []};#d#	1205	$decname, length $data, scalar @{$av || []};
		1206
952	return ($data, $av);	1207	($data, $av)
953	}	1208	}
		1209
		1210	=head2 COMMAND CALLBACKS
		1211
		1212	=over 4
		1213
		1214	=cut
954		1215
955	#############################################################################	1216	#############################################################################
956	# command handling &c	1217	# command handling &c
957		1218
958	=item cf::register_command $name => \&callback($ob,$args);	1219	=item cf::register_command $name => \&callback($ob,$args);
…		…
971	push @{ $COMMAND{$name} }, [$caller, $cb];	1232	push @{ $COMMAND{$name} }, [$caller, $cb];
972	}	1233	}
973		1234
974	=item cf::register_extcmd $name => \&callback($pl,$packet);	1235	=item cf::register_extcmd $name => \&callback($pl,$packet);
975		1236
976	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.
977		1242
978	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
979	called.	1244	called.
980		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
981	=cut	1257	=cut
982		1258
983	sub register_extcmd {	1259	sub register_extcmd {
984	my ($name, $cb) = @_;	1260	my ($name, $cb) = @_;
985		1261
986	$EXTCMD{$name} = $cb;	1262	$EXTCMD{$name} = $cb;
		1263	}
		1264
		1265	sub register_exticmd {
		1266	my ($name, $cb) = @_;
		1267
		1268	$EXTICMD{$name} = $cb;
987	}	1269	}
988		1270
989	cf::player->attach (	1271	cf::player->attach (
990	on_command => sub {	1272	on_command => sub {
991	my ($pl, $name, $params) = @_;	1273	my ($pl, $name, $params) = @_;
…		…
1000	cf::override;	1282	cf::override;
1001	},	1283	},
1002	on_extcmd => sub {	1284	on_extcmd => sub {
1003	my ($pl, $buf) = @_;	1285	my ($pl, $buf) = @_;
1004		1286
1005	my $msg = eval { from_json $buf };	1287	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1006		1288
1007	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
1008	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1297	if (my $cb = $EXTCMD{$type}) {
1009	if (my %reply = $cb->($pl, $msg)) {	1298	@reply = $cb->($pl, @payload);
1010	$pl->ext_reply ($msg->{msgid}, %reply);
1011	}
1012	}	1299	}
		1300
		1301	$pl->ext_reply ($reply, @reply)
		1302	if $reply;
		1303
1013	} else {	1304	} else {
1014	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1305	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1015	}	1306	}
1016		1307
1017	cf::override;	1308	cf::override;
1018	},	1309	},
1019	);	1310	);
1020		1311
1021	sub load_extension {
1022	my ($path) = @_;
1023
1024	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1025	my $base = $1;
1026	my $pkg = $1;
1027	$pkg =~ s/[^[:word:]]/_/g;
1028	$pkg = "ext::$pkg";
1029
1030	warn "... loading '$path' into '$pkg'\n";
1031
1032	open my $fh, "<:utf8", $path
1033	or die "$path: $!";
1034
1035	my $source =
1036	"package $pkg; use strict; use utf8;\n"
1037	. "#line 1 \"$path\"\n{\n"
1038	. (do { local $/; <$fh> })
1039	. "\n};\n1";
1040
1041	eval $source
1042	or die $@ ? "$path: $@\n"
1043	: "extension disabled.\n";
1044
1045	push @EXTS, $pkg;
1046	}
1047
1048	sub load_extensions {	1312	sub load_extensions {
		1313	cf::sync_job {
		1314	my %todo;
		1315
1049	for my $ext (<$LIBDIR/*.ext>) {	1316	for my $path (<$LIBDIR/*.ext>) {
1050	next unless -r $ext;	1317	next unless -r $path;
1051	eval {	1318
1052	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;
1053	1	1375	}
1054	} or warn "$ext not loaded: $@";	1376
		1377	skip:
		1378	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1379	unless $progress;
		1380	}
1055	}	1381	};
1056	}	1382	}
1057		1383
1058	#############################################################################	1384	#############################################################################
1059	# load/save/clean perl data associated with a map
1060		1385
1061	*cf::mapsupport::on_clean = sub {	1386	=back
1062	my ($map) = @_;
1063
1064	my $path = $map->tmpname;
1065	defined $path or return;
1066
1067	unlink "$path.pst";
1068	};
1069
1070	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1071
1072	#############################################################################
1073		1387
1074	=head2 CORE EXTENSIONS	1388	=head2 CORE EXTENSIONS
1075		1389
1076	Functions and methods that extend core crossfire objects.	1390	Functions and methods that extend core crossfire objects.
1077		1391
…		…
1083		1397
1084	=head3 cf::player	1398	=head3 cf::player
1085		1399
1086	=over 4	1400	=over 4
1087		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
1088	=item cf::player::find $login	1416	=item cf::player::find $login
1089		1417
1090	Returns the given player object, loading it if necessary (might block).	1418	Returns the given player object, loading it if necessary (might block).
1091		1419
1092	=cut	1420	=cut
1093		1421
1094	sub playerdir($) {	1422	sub playerdir($) {
1095	cf::localdir	1423	"$PLAYERDIR/"
1096	. "/"
1097	. cf::playerdir
1098	. "/"
1099	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1424	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1100	}	1425	}
1101		1426
1102	sub path($) {	1427	sub path($) {
1103	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1428	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1104		1429
1105	(playerdir $login) . "/$login.pl"	1430	(playerdir $login) . "/playerdata"
1106	}	1431	}
1107		1432
1108	sub find_active($) {	1433	sub find_active($) {
1109	$cf::PLAYER{$_[0]}	1434	$cf::PLAYER{$_[0]}
1110	and $cf::PLAYER{$_[0]}->active	1435	and $cf::PLAYER{$_[0]}->active
…		…
1113		1438
1114	sub exists($) {	1439	sub exists($) {
1115	my ($login) = @_;	1440	my ($login) = @_;
1116		1441
1117	$cf::PLAYER{$login}	1442	$cf::PLAYER{$login}
1118	or cf::sync_job { !aio_stat $login }	1443	or cf::sync_job { !aio_stat path $login }
1119	}	1444	}
1120		1445
1121	sub find($) {	1446	sub find($) {
1122	return $cf::PLAYER{$_[0]} || do {	1447	return $cf::PLAYER{$_[0]} || do {
1123	my $login = $_[0];	1448	my $login = $_[0];
1124		1449
1125	my $guard = cf::lock_acquire "user_find:$login";	1450	my $guard = cf::lock_acquire "user_find:$login";
1126		1451
1127	$cf::PLAYER{$_[0]} || do {	1452	$cf::PLAYER{$_[0]} || do {
1128	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
1129	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;
1130	$cf::PLAYER{$login} = $pl	1468	$cf::PLAYER{$login} = $pl
1131	}	1469	}
1132	}	1470	}
1133	}	1471	}
1134		1472
…		…
1143	return if $pl->{deny_save};	1481	return if $pl->{deny_save};
1144		1482
1145	aio_mkdir playerdir $pl, 0770;	1483	aio_mkdir playerdir $pl, 0770;
1146	$pl->{last_save} = $cf::RUNTIME;	1484	$pl->{last_save} = $cf::RUNTIME;
1147		1485
		1486	cf::get_slot 0.01;
		1487
1148	$pl->save_pl ($path);	1488	$pl->save_pl ($path);
1149	Coro::cede;	1489	cf::cede_to_tick;
1150	}	1490	}
1151		1491
1152	sub new($) {	1492	sub new($) {
1153	my ($login) = @_;	1493	my ($login) = @_;
1154		1494
…		…
1160	$cf::PLAYER{$login} = $self;	1500	$cf::PLAYER{$login} = $self;
1161		1501
1162	$self	1502	$self
1163	}	1503	}
1164		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
1165	=item $pl->quit_character	1515	=item $pl->quit_character
1166		1516
1167	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
1168	be destroyed. May block for a long time.	1518	be destroyed. May block for a long time.
1169		1519
1170	=cut	1520	=cut
1171		1521
1172	sub quit_character {	1522	sub quit_character {
1173	my ($pl) = @_;	1523	my ($pl) = @_;
1174		1524
		1525	my $name = $pl->ob->name;
		1526
1175	$pl->{deny_save} = 1;	1527	$pl->{deny_save} = 1;
1176	$pl->password ("*"); # this should lock out the player until we nuked the dir	1528	$pl->password ("*"); # this should lock out the player until we nuked the dir
1177		1529
1178	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1530	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1179	$pl->deactivate;	1531	$pl->deactivate;
		1532	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1533	$pl->ob->check_score;
1180	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1534	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1181	$pl->ns->destroy if $pl->ns;	1535	$pl->ns->destroy if $pl->ns;
1182		1536
1183	my $path = playerdir $pl;	1537	my $path = playerdir $pl;
1184	my $temp = "$path~$cf::RUNTIME~deleting~";	1538	my $temp = "$path~$cf::RUNTIME~deleting~";
1185	aio_rename $path, $temp;	1539	aio_rename $path, $temp;
1186	delete $cf::PLAYER{$pl->ob->name};	1540	delete $cf::PLAYER{$pl->ob->name};
1187	$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
1188	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;
1189	}	1563	}
1190		1564
1191	=item cf::player::list_logins	1565	=item cf::player::list_logins
1192		1566
1193	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
1194	while and may block, so not sync_job-capable, ever.	1568	while and may block, so not sync_job-capable, ever.
1195		1569
1196	=cut	1570	=cut
1197		1571
1198	sub list_logins {	1572	sub list_logins {
1199	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1573	my $dirs = aio_readdir $PLAYERDIR
1200	or return [];	1574	or return [];
1201		1575
1202	my @logins;	1576	my @logins;
1203		1577
1204	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") {
1205	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1584	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1206	aio_read $fh, 0, 512, my $buf, 0 or next;	1585	aio_read $fh, 0, 512, my $buf, 0 or next;
1207	$buf !~ /^password -------------$/m or next; # official not-valid tag	1586	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1587	}
1208		1588
1209	utf8::decode $login;	1589	utf8::decode $login;
1210	push @logins, $login;	1590	push @logins, $login;
1211	}	1591	}
1212		1592
1213	\@logins	1593	\@logins
1214	}	1594	}
1215		1595
1216	=item $player->maps	1596	=item $player->maps
1217		1597
1218	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
1219	player. May block.	1599	player. May block.
1220		1600
1221	=cut	1601	=cut
1222		1602
1223	sub maps($) {	1603	sub maps($) {
1224	my ($pl) = @_;	1604	my ($pl) = @_;
		1605
		1606	$pl = ref $pl ? $pl->ob->name : $pl;
1225		1607
1226	my $files = aio_readdir playerdir $pl	1608	my $files = aio_readdir playerdir $pl
1227	or return;	1609	or return;
1228		1610
1229	my @paths;	1611	my @paths;
…		…
1231	for (@$files) {	1613	for (@$files) {
1232	utf8::decode $_;	1614	utf8::decode $_;
1233	next if /\.(?:pl|pst)$/;	1615	next if /\.(?:pl|pst)$/;
1234	next unless /^$PATH_SEP/o;	1616	next unless /^$PATH_SEP/o;
1235		1617
1236	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1618	push @paths, cf::map::normalise "~$pl/$_";
1237	}	1619	}
1238		1620
1239	\@paths	1621	\@paths
1240	}	1622	}
1241		1623
		1624	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1625
		1626	Expand crossfire pod fragments into protocol xml.
		1627
		1628	=cut
		1629
		1630	use re 'eval';
		1631
		1632	my $group;
		1633	my $interior; $interior = qr{
		1634	# match a pod interior sequence sans C<< >>
		1635	(?:
		1636	\ (.*?)\ (?{ $group = $^N })
		1637	| < (??{$interior}) >
		1638	)
		1639	}x;
		1640
		1641	sub expand_cfpod {
		1642	my ($self, $pod) = @_;
		1643
		1644	my $xml;
		1645
		1646	while () {
		1647	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1648	$group = $1;
		1649
		1650	$group =~ s/&/&amp;/g;
		1651	$group =~ s/</&lt;/g;
		1652
		1653	$xml .= $group;
		1654	} elsif ($pod =~ m%\G
		1655	([BCGHITU])
		1656	<
		1657	(?:
		1658	([^<>]*) (?{ $group = $^N })
		1659	| < $interior >
		1660	)
		1661	>
		1662	%gcsx
		1663	) {
		1664	my ($code, $data) = ($1, $group);
		1665
		1666	if ($code eq "B") {
		1667	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1668	} elsif ($code eq "I") {
		1669	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1670	} elsif ($code eq "U") {
		1671	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1672	} elsif ($code eq "C") {
		1673	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1674	} elsif ($code eq "T") {
		1675	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1676	} elsif ($code eq "G") {
		1677	my ($male, $female) = split /\|/, $data;
		1678	$data = $self->gender ? $female : $male;
		1679	$xml .= expand_cfpod ($self, $data);
		1680	} elsif ($code eq "H") {
		1681	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1682	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1683	"")
		1684	[$self->{hintmode}];
		1685	} else {
		1686	$xml .= "error processing '$code($data)' directive";
		1687	}
		1688	} else {
		1689	if ($pod =~ /\G(.+)/) {
		1690	warn "parse error while expanding $pod (at $1)";
		1691	}
		1692	last;
		1693	}
		1694	}
		1695
		1696	for ($xml) {
		1697	# create single paragraphs (very hackish)
		1698	s/(?<=\S)\n(?=\w)/ /g;
		1699
		1700	# compress some whitespace
		1701	s/\s+\n/\n/g; # ws line-ends
		1702	s/\n\n+/\n/g; # double lines
		1703	s/^\n+//; # beginning lines
		1704	s/\n+$//; # ending lines
		1705	}
		1706
		1707	$xml
		1708	}
		1709
		1710	no re 'eval';
		1711
		1712	sub hintmode {
		1713	$_[0]{hintmode} = $_[1] if @_ > 1;
		1714	$_[0]{hintmode}
		1715	}
		1716
1242	=item $player->ext_reply ($msgid, $msgtype, %msg)	1717	=item $player->ext_reply ($msgid, @msg)
1243		1718
1244	Sends an ext reply to the player.	1719	Sends an ext reply to the player.
1245		1720
1246	=cut	1721	=cut
1247		1722
1248	sub ext_reply($$$%) {	1723	sub ext_reply($$@) {
1249	my ($self, $id, %msg) = @_;	1724	my ($self, $id, @msg) = @_;
1250		1725
1251	$msg{msgid} = $id;	1726	$self->ns->ext_reply ($id, @msg)
1252
1253	$self->send ("ext " . cf::to_json \%msg);
1254	}	1727	}
1255		1728
1256	package cf;	1729	=item $player->ext_msg ($type, @msg)
		1730
		1731	Sends an ext event to the client.
		1732
		1733	=cut
		1734
		1735	sub ext_msg($$@) {
		1736	my ($self, $type, @msg) = @_;
		1737
		1738	$self->ns->ext_msg ($type, @msg);
		1739	}
		1740
		1741	=head3 cf::region
		1742
		1743	=over 4
		1744
		1745	=cut
		1746
		1747	package cf::region;
		1748
		1749	=item cf::region::find_by_path $path
		1750
		1751	Tries to decuce the likely region for a map knowing only its path.
		1752
		1753	=cut
		1754
		1755	sub find_by_path($) {
		1756	my ($path) = @_;
		1757
		1758	my ($match, $specificity);
		1759
		1760	for my $region (list) {
		1761	if ($region->{match} && $path =~ $region->{match}) {
		1762	($match, $specificity) = ($region, $region->specificity)
		1763	if $region->specificity > $specificity;
		1764	}
		1765	}
		1766
		1767	$match
		1768	}
1257		1769
1258	=back	1770	=back
1259
1260		1771
1261	=head3 cf::map	1772	=head3 cf::map
1262		1773
1263	=over 4	1774	=over 4
1264		1775
…		…
1267	package cf::map;	1778	package cf::map;
1268		1779
1269	use Fcntl;	1780	use Fcntl;
1270	use Coro::AIO;	1781	use Coro::AIO;
1271		1782
		1783	use overload
		1784	'""' => \&as_string,
		1785	fallback => 1;
		1786
1272	our $MAX_RESET = 3600;	1787	our $MAX_RESET = 3600;
1273	our $DEFAULT_RESET = 3000;	1788	our $DEFAULT_RESET = 3000;
1274		1789
1275	sub generate_random_map {	1790	sub generate_random_map {
1276	my ($path, $rmp) = @_;	1791	my ($self, $rmp) = @_;
		1792
		1793	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1277		1794
1278	# mit "rum" bekleckern, nicht	1795	# mit "rum" bekleckern, nicht
1279	cf::map::_create_random_map (	1796	$self->_create_random_map (
1280	$path,
1281	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1797	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1282	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1798	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1283	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1799	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1284	$rmp->{exit_on_final_map},	1800	$rmp->{exit_on_final_map},
1285	$rmp->{xsize}, $rmp->{ysize},	1801	$rmp->{xsize}, $rmp->{ysize},
…		…
1290	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1806	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1291	(cf::region::find $rmp->{region}), $rmp->{custom}	1807	(cf::region::find $rmp->{region}), $rmp->{custom}
1292	)	1808	)
1293	}	1809	}
1294		1810
		1811	=item cf::map->register ($regex, $prio)
		1812
		1813	Register a handler for the map path matching the given regex at the
		1814	givne priority (higher is better, built-in handlers have priority 0, the
		1815	default).
		1816
		1817	=cut
		1818
		1819	sub register {
		1820	my (undef, $regex, $prio) = @_;
		1821	my $pkg = caller;
		1822
		1823	no strict;
		1824	push @{"$pkg\::ISA"}, __PACKAGE__;
		1825
		1826	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1827	}
		1828
		1829	# also paths starting with '/'
		1830	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1831
		1832	sub thawer_merge {
		1833	my ($self, $merge) = @_;
		1834
		1835	# we have to keep some variables in memory intact
		1836	local $self->{path};
		1837	local $self->{load_path};
		1838
		1839	$self->SUPER::thawer_merge ($merge);
		1840	}
		1841
		1842	sub normalise {
		1843	my ($path, $base) = @_;
		1844
		1845	$path = "$path"; # make sure its a string
		1846
		1847	$path =~ s/\.map$//;
		1848
		1849	# map plan:
		1850	#
		1851	# /! non-realised random map exit (special hack!)
		1852	# {... are special paths that are not being touched
		1853	# ?xxx/... are special absolute paths
		1854	# ?random/... random maps
		1855	# /... normal maps
		1856	# ~user/... per-player map of a specific user
		1857
		1858	$path =~ s/$PATH_SEP/\//go;
		1859
		1860	# treat it as relative path if it starts with
		1861	# something that looks reasonable
		1862	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1863	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1864
		1865	$base =~ s{[^/]+/?$}{};
		1866	$path = "$base/$path";
		1867	}
		1868
		1869	for ($path) {
		1870	redo if s{//}{/};
		1871	redo if s{/\.?/}{/};
		1872	redo if s{/[^/]+/\.\./}{/};
		1873	}
		1874
		1875	$path
		1876	}
		1877
		1878	sub new_from_path {
		1879	my (undef, $path, $base) = @_;
		1880
		1881	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1882
		1883	$path = normalise $path, $base;
		1884
		1885	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1886	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1887	my $self = bless cf::map::new, $pkg;
		1888	$self->{path} = $path; $self->path ($path);
		1889	$self->init; # pass $1 etc.
		1890	return $self;
		1891	}
		1892	}
		1893
		1894	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1895	()
		1896	}
		1897
		1898	sub init {
		1899	my ($self) = @_;
		1900
		1901	$self
		1902	}
		1903
		1904	sub as_string {
		1905	my ($self) = @_;
		1906
		1907	"$self->{path}"
		1908	}
		1909
		1910	# the displayed name, this is a one way mapping
		1911	sub visible_name {
		1912	&as_string
		1913	}
		1914
		1915	# the original (read-only) location
		1916	sub load_path {
		1917	my ($self) = @_;
		1918
		1919	"$MAPDIR/$self->{path}.map"
		1920	}
		1921
		1922	# the temporary/swap location
		1923	sub save_path {
		1924	my ($self) = @_;
		1925
		1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1927	"$TMPDIR/$path.map"
		1928	}
		1929
		1930	# the unique path, undef == no special unique path
		1931	sub uniq_path {
		1932	my ($self) = @_;
		1933
		1934	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1935	"$UNIQUEDIR/$path"
		1936	}
		1937
1295	# and all this just because we cannot iterate over	1938	# and all this just because we cannot iterate over
1296	# all maps in C++...	1939	# all maps in C++...
1297	sub change_all_map_light {	1940	sub change_all_map_light {
1298	my ($change) = @_;	1941	my ($change) = @_;
1299		1942
1300	$_->change_map_light ($change)	1943	$_->change_map_light ($change)
1301	for grep $_->outdoor, values %cf::MAP;	1944	for grep $_->outdoor, values %cf::MAP;
1302	}	1945	}
1303		1946
		1947	sub decay_objects {
		1948	my ($self) = @_;
		1949
		1950	return if $self->{deny_reset};
		1951
		1952	$self->do_decay_objects;
		1953	}
		1954
		1955	sub unlink_save {
		1956	my ($self) = @_;
		1957
		1958	utf8::encode (my $save = $self->save_path);
		1959	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1960	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1961	}
		1962
1304	sub load_map_header($) {	1963	sub load_header_from($) {
1305	my ($path) = @_;	1964	my ($self, $path) = @_;
1306		1965
1307	utf8::encode $path;	1966	utf8::encode $path;
1308	aio_open $path, O_RDONLY, 0	1967	my $f = new_from_file cf::object::thawer $path
1309	or return;	1968	or return;
1310		1969
1311	my $map = cf::map::new	1970	$self->_load_header ($f)
1312	or return;	1971	or return;
1313		1972
1314	# for better error messages only, will be overwritten later	1973	local $MAP_LOADING{$self->{path}} = $self;
1315	$map->path ($path);	1974	$f->resolve_delayed_derefs;
1316		1975
1317	$map->load_header ($path)	1976	$self->{load_path} = $path;
		1977
		1978	1
		1979	}
		1980
		1981	sub load_header_orig {
		1982	my ($self) = @_;
		1983
		1984	$self->load_header_from ($self->load_path)
		1985	}
		1986
		1987	sub load_header_temp {
		1988	my ($self) = @_;
		1989
		1990	$self->load_header_from ($self->save_path)
		1991	}
		1992
		1993	sub prepare_temp {
		1994	my ($self) = @_;
		1995
		1996	$self->last_access ((delete $self->{last_access})
		1997	|| $cf::RUNTIME); #d#
		1998	# safety
		1999	$self->{instantiate_time} = $cf::RUNTIME
		2000	if $self->{instantiate_time} > $cf::RUNTIME;
		2001	}
		2002
		2003	sub prepare_orig {
		2004	my ($self) = @_;
		2005
		2006	$self->{load_original} = 1;
		2007	$self->{instantiate_time} = $cf::RUNTIME;
		2008	$self->last_access ($cf::RUNTIME);
		2009	$self->instantiate;
		2010	}
		2011
		2012	sub load_header {
		2013	my ($self) = @_;
		2014
		2015	if ($self->load_header_temp) {
		2016	$self->prepare_temp;
		2017	} else {
		2018	$self->load_header_orig
1318	or return;	2019	or return;
		2020	$self->prepare_orig;
		2021	}
1319		2022
1320	$map->{load_path} = $path;	2023	$self->{deny_reset} = 1
		2024	if $self->no_reset;
1321		2025
1322	$map	2026	$self->default_region (cf::region::find_by_path $self->{path})
		2027	unless $self->default_region;
		2028
		2029	1
1323	}	2030	}
1324		2031
1325	sub find;	2032	sub find;
1326	sub find {	2033	sub find {
1327	my ($path, $origin) = @_;	2034	my ($path, $origin) = @_;
1328		2035
1329	#warn "find<$path,$origin>\n";#d#
1330
1331	$path = new cf::path $path, $origin && $origin->path;	2036	$path = normalise $path, $origin && $origin->path;
1332	my $key = $path->as_string;
1333		2037
		2038	cf::lock_wait "map_data:$path";#d#remove
1334	cf::lock_wait "map_find:$key";	2039	cf::lock_wait "map_find:$path";
1335		2040
1336	$cf::MAP{$key} || do {	2041	$cf::MAP{$path} || do {
		2042	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1337	my $guard = cf::lock_acquire "map_find:$key";	2043	my $guard2 = cf::lock_acquire "map_find:$path";
1338		2044
1339	# do it the slow way	2045	my $map = new_from_path cf::map $path
1340	my $map = $path->load_temp;
1341
1342	Coro::cede;
1343
1344	if ($map) {
1345	$map->last_access ((delete $map->{last_access})
1346	|| $cf::RUNTIME); #d#
1347	# safety
1348	$map->{instantiate_time} = $cf::RUNTIME
1349	if $map->{instantiate_time} > $cf::RUNTIME;
1350	} else {
1351	$map = $path->load_orig
1352	or return;	2046	or return;
1353		2047
1354	$map->{load_original} = 1;
1355	$map->{instantiate_time} = $cf::RUNTIME;
1356	$map->last_access ($cf::RUNTIME);
1357	$map->instantiate;
1358
1359	# per-player maps become, after loading, normal maps
1360	$map->per_player (0) if $path->{user_rel};
1361	}
1362
1363	$map->path ($key);
1364	$map->{path} = $path;
1365	$map->{last_save} = $cf::RUNTIME;	2048	$map->{last_save} = $cf::RUNTIME;
1366		2049
1367	Coro::cede;	2050	$map->load_header
		2051	or return;
1368		2052
1369	if ($map->should_reset) {	2053	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2054	# doing this can freeze the server in a sync job, obviously
		2055	#$cf::WAIT_FOR_TICK->wait;
		2056	undef $guard2;
		2057	undef $guard1;
1370	$map->reset;	2058	$map->reset;
1371	undef $guard;
1372	$map = find $path	2059	return find $path;
1373	or return;
1374	}	2060	}
1375		2061
1376	$cf::MAP{$key} = $map	2062	$cf::MAP{$path} = $map
1377	}	2063	}
1378	}	2064	}
		2065
		2066	sub pre_load { }
		2067	sub post_load { }
1379		2068
1380	sub load {	2069	sub load {
1381	my ($self) = @_;	2070	my ($self) = @_;
1382		2071
		2072	local $self->{deny_reset} = 1; # loading can take a long time
		2073
1383	my $path = $self->{path};	2074	my $path = $self->{path};
		2075
		2076	{
1384	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2077	my $guard = cf::lock_acquire "map_data:$path";
1385		2078
		2079	return unless $self->valid;
1386	return if $self->in_memory != cf::MAP_SWAPPED;	2080	return unless $self->in_memory == cf::MAP_SWAPPED;
1387		2081
1388	$self->in_memory (cf::MAP_LOADING);	2082	$self->in_memory (cf::MAP_LOADING);
1389		2083
1390	$self->alloc;	2084	$self->alloc;
1391	$self->load_objects ($self->{load_path}, 1)	2085
		2086	$self->pre_load;
		2087	cf::cede_to_tick;
		2088
		2089	my $f = new_from_file cf::object::thawer $self->{load_path};
		2090	$f->skip_block;
		2091	$self->_load_objects ($f)
1392	or return;	2092	or return;
1393		2093
1394	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2094	$self->post_load_original
1395	if delete $self->{load_original};	2095	if delete $self->{load_original};
1396		2096
1397	if (my $uniq = $path->uniq_path) {	2097	if (my $uniq = $self->uniq_path) {
1398	utf8::encode $uniq;	2098	utf8::encode $uniq;
1399	if (aio_open $uniq, O_RDONLY, 0) {	2099	unless (aio_stat $uniq) {
		2100	if (my $f = new_from_file cf::object::thawer $uniq) {
1400	$self->clear_unique_items;	2101	$self->clear_unique_items;
1401	$self->load_objects ($uniq, 0);	2102	$self->_load_objects ($f);
		2103	$f->resolve_delayed_derefs;
		2104	}
1402	}	2105	}
1403	}	2106	}
1404		2107
1405	Coro::cede;	2108	$f->resolve_delayed_derefs;
1406		2109
		2110	cf::cede_to_tick;
1407	# now do the right thing for maps	2111	# now do the right thing for maps
1408	$self->link_multipart_objects;	2112	$self->link_multipart_objects;
1409
1410	if ($self->{path}->is_style_map) {
1411	$self->{deny_save} = 1;
1412	$self->{deny_reset} = 1;
1413	} else {
1414	$self->decay_objects;
1415	$self->fix_auto_apply;
1416	$self->update_buttons;
1417	$self->set_darkness_map;
1418	$self->difficulty ($self->estimate_difficulty)	2113	$self->difficulty ($self->estimate_difficulty)
1419	unless $self->difficulty;	2114	unless $self->difficulty;
		2115	cf::cede_to_tick;
		2116
		2117	unless ($self->{deny_activate}) {
		2118	$self->decay_objects;
		2119	$self->fix_auto_apply;
		2120	$self->update_buttons;
		2121	cf::cede_to_tick;
		2122	$self->set_darkness_map;
		2123	cf::cede_to_tick;
1420	$self->activate;	2124	$self->activate;
1421	}	2125	}
1422		2126
1423	Coro::cede;	2127	$self->{last_save} = $cf::RUNTIME;
		2128	$self->last_access ($cf::RUNTIME);
1424		2129
1425	$self->in_memory (cf::MAP_IN_MEMORY);	2130	$self->in_memory (cf::MAP_ACTIVE);
		2131	}
		2132
		2133	$self->post_load;
		2134	}
		2135
		2136	sub customise_for {
		2137	my ($self, $ob) = @_;
		2138
		2139	return find "~" . $ob->name . "/" . $self->{path}
		2140	if $self->per_player;
		2141
		2142	# return find "?party/" . $ob->name . "/" . $self->{path}
		2143	# if $self->per_party;
		2144
		2145	$self
1426	}	2146	}
1427		2147
1428	# find and load all maps in the 3x3 area around a map	2148	# find and load all maps in the 3x3 area around a map
1429	sub load_diag {	2149	sub load_neighbours {
1430	my ($map) = @_;	2150	my ($map) = @_;
1431		2151
1432	my @diag; # diagonal neighbours	2152	my @neigh; # diagonal neighbours
1433		2153
1434	for (0 .. 3) {	2154	for (0 .. 3) {
1435	my $neigh = $map->tile_path ($_)	2155	my $neigh = $map->tile_path ($_)
1436	or next;	2156	or next;
1437	$neigh = find $neigh, $map	2157	$neigh = find $neigh, $map
1438	or next;	2158	or next;
1439	$neigh->load;	2159	$neigh->load;
1440		2160
		2161	push @neigh,
1441	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2162	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1442	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2163	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1443	}	2164	}
1444		2165
1445	for (@diag) {	2166	for (grep defined $_->[0], @neigh) {
		2167	my ($path, $origin) = @$_;
1446	my $neigh = find @$_	2168	my $neigh = find $path, $origin
1447	or next;	2169	or next;
1448	$neigh->load;	2170	$neigh->load;
1449	}	2171	}
1450	}	2172	}
1451		2173
…		…
1456	}	2178	}
1457		2179
1458	sub do_load_sync {	2180	sub do_load_sync {
1459	my ($map) = @_;	2181	my ($map) = @_;
1460		2182
		2183	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2184	if $Coro::current == $Coro::main;
		2185
1461	cf::sync_job { $map->load };	2186	cf::sync_job { $map->load };
1462	}	2187	}
1463		2188
1464	our %MAP_PREFETCH;	2189	our %MAP_PREFETCH;
		2190	our $MAP_PREFETCHER = undef;
		2191
		2192	sub find_async {
		2193	my ($path, $origin, $load) = @_;
		2194
		2195	$path = normalise $path, $origin && $origin->{path};
		2196
		2197	if (my $map = $cf::MAP{$path}) {
		2198	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2199	}
		2200
		2201	$MAP_PREFETCH{$path} |= $load;
		2202
1465	our $MAP_PREFETCHER = Coro::async {	2203	$MAP_PREFETCHER ||= cf::async {
1466	while () {	2204	$Coro::current->{desc} = "map prefetcher";
		2205
1467	while (%MAP_PREFETCH) {	2206	while (%MAP_PREFETCH) {
1468	my $key = each %MAP_PREFETCH	2207	while (my ($k, $v) = each %MAP_PREFETCH) {
1469	or next;	2208	if (my $map = find $k) {
		2209	$map->load if $v;
		2210	}
		2211
1470	my $path = delete $MAP_PREFETCH{$key};	2212	delete $MAP_PREFETCH{$k};
1471
1472	my $map = find $path
1473	or next;
1474	$map->load;
1475	}	2213	}
1476	Coro::schedule;	2214	}
		2215	undef $MAP_PREFETCHER;
1477	}	2216	};
1478	};
1479
1480	sub find_async {
1481	my ($path, $origin) = @_;
1482
1483	$path = new cf::path $path, $origin && $origin->path;
1484	my $key = $path->as_string;
1485
1486	if (my $map = $cf::MAP{$key}) {
1487	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1488	}
1489
1490	$MAP_PREFETCH{$key} = $path;
1491	$MAP_PREFETCHER->ready;	2217	$MAP_PREFETCHER->prio (6);
1492		2218
1493	()	2219	()
1494	}	2220	}
1495		2221
1496	sub save {	2222	sub save {
1497	my ($self) = @_;	2223	my ($self) = @_;
1498		2224
1499	my $lock = cf::lock_acquire "map_data:" . $self->path;	2225	my $lock = cf::lock_acquire "map_data:$self->{path}";
1500		2226
1501	$self->{last_save} = $cf::RUNTIME;	2227	$self->{last_save} = $cf::RUNTIME;
1502		2228
1503	return unless $self->dirty;	2229	return unless $self->dirty;
1504		2230
1505	my $save = $self->{path}->save_path; utf8::encode $save;	2231	my $save = $self->save_path; utf8::encode $save;
1506	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2232	my $uniq = $self->uniq_path; utf8::encode $uniq;
1507		2233
1508	$self->{load_path} = $save;	2234	$self->{load_path} = $save;
1509		2235
1510	return if $self->{deny_save};	2236	return if $self->{deny_save};
1511		2237
1512	local $self->{last_access} = $self->last_access;#d#	2238	local $self->{last_access} = $self->last_access;#d#
1513		2239
1514	cf::async {	2240	cf::async {
		2241	$Coro::current->{desc} = "map player save";
1515	$_->contr->save for $self->players;	2242	$_->contr->save for $self->players;
1516	};	2243	};
1517		2244
		2245	cf::get_slot 0.02;
		2246
1518	if ($uniq) {	2247	if ($uniq) {
1519	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2248	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1520	$self->save_objects ($uniq, cf::IO_UNIQUES);	2249	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1521	} else {	2250	} else {
1522	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2251	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1523	}	2252	}
1524	}	2253	}
1525		2254
1526	sub swap_out {	2255	sub swap_out {
1527	my ($self) = @_;	2256	my ($self) = @_;
1528		2257
1529	# save first because save cedes	2258	# save first because save cedes
1530	$self->save;	2259	$self->save;
1531		2260
1532	my $lock = cf::lock_acquire "map_data:" . $self->path;	2261	my $lock = cf::lock_acquire "map_data:$self->{path}";
1533		2262
1534	return if $self->players;	2263	return if $self->players;
1535	return if $self->in_memory != cf::MAP_IN_MEMORY;	2264	return if $self->in_memory != cf::MAP_ACTIVE;
1536	return if $self->{deny_save};	2265	return if $self->{deny_save};
1537		2266
		2267	$self->in_memory (cf::MAP_SWAPPED);
		2268
		2269	$self->deactivate;
		2270	$_->clear_links_to ($self) for values %cf::MAP;
1538	$self->clear;	2271	$self->clear;
1539	$self->in_memory (cf::MAP_SWAPPED);
1540	}	2272	}
1541		2273
1542	sub reset_at {	2274	sub reset_at {
1543	my ($self) = @_;	2275	my ($self) = @_;
1544		2276
1545	# TODO: safety, remove and allow resettable per-player maps	2277	# TODO: safety, remove and allow resettable per-player maps
1546	return 1e99 if $self->{path}{user_rel};
1547	return 1e99 if $self->{deny_reset};	2278	return 1e99 if $self->{deny_reset};
1548		2279
1549	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2280	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1550	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2281	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1551		2282
…		…
1556	my ($self) = @_;	2287	my ($self) = @_;
1557		2288
1558	$self->reset_at <= $cf::RUNTIME	2289	$self->reset_at <= $cf::RUNTIME
1559	}	2290	}
1560		2291
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->{path}->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2292	sub reset {
1575	my ($self) = @_;	2293	my ($self) = @_;
1576		2294
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2295	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2296
1579	return if $self->players;	2297	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2298
1582	warn "resetting map ", $self->path;#d#	2299	warn "resetting map ", $self->path;
		2300
		2301	$self->in_memory (cf::MAP_SWAPPED);
		2302
		2303	# need to save uniques path
		2304	unless ($self->{deny_save}) {
		2305	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2306
		2307	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2308	if $uniq;
		2309	}
1583		2310
1584	delete $cf::MAP{$self->path};	2311	delete $cf::MAP{$self->path};
1585		2312
		2313	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2314	$_->clear_links_to ($self) for values %cf::MAP;
		2315	$self->clear;
1587		2316
1588	$self->{path}->unlink_save;	2317	$self->unlink_save;
1589	$self->destroy;	2318	$self->destroy;
1590	}	2319	}
1591		2320
1592	my $nuke_counter = "aaaa";	2321	my $nuke_counter = "aaaa";
1593		2322
1594	sub nuke {	2323	sub nuke {
1595	my ($self) = @_;	2324	my ($self) = @_;
1596		2325
		2326	{
		2327	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2328
		2329	delete $cf::MAP{$self->path};
		2330
		2331	$self->unlink_save;
		2332
		2333	bless $self, "cf::map";
		2334	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2335	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2336	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2337	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2338
		2339	$cf::MAP{$self->path} = $self;
		2340	}
		2341
1600	$self->reset; # polite request, might not happen	2342	$self->reset; # polite request, might not happen
1601	}	2343	}
1602		2344
1603	sub customise_for {	2345	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2346
1606	if ($map->per_player) {	2347	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2348	maps. May block.
		2349
		2350	=cut
		2351
		2352	sub tmp_maps() {
1608	}	2353	[
		2354	map {
		2355	utf8::decode $_;
		2356	/\.map$/
		2357	? normalise $_
		2358	: ()
		2359	} @{ aio_readdir $TMPDIR or [] }
		2360	]
		2361	}
1609		2362
1610	$map	2363	=item $maps = cf::map::random_maps
		2364
		2365	Returns an arrayref with all map paths of currently instantiated and saved
		2366	random maps. May block.
		2367
		2368	=cut
		2369
		2370	sub random_maps() {
		2371	[
		2372	map {
		2373	utf8::decode $_;
		2374	/\.map$/
		2375	? normalise "?random/$_"
		2376	: ()
		2377	} @{ aio_readdir $RANDOMDIR or [] }
		2378	]
1611	}	2379	}
1612		2380
1613	=item cf::map::unique_maps	2381	=item cf::map::unique_maps
1614		2382
1615	Returns an arrayref of cf::path's of all shared maps that have	2383	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2384	instantiated unique items. May block.
1617		2385
1618	=cut	2386	=cut
1619		2387
1620	sub unique_maps() {	2388	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2389	[
1622	or return;	2390	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2391	utf8::decode $_;
1628	next if /\.pst$/;	2392	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2393	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2394	? ()
1631	push @paths, new cf::path $_;	2395	: normalise $_
		2396	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2397	]
1633
1634	\@paths
1635	}	2398	}
1636
1637	package cf;
1638		2399
1639	=back	2400	=back
1640		2401
1641	=head3 cf::object	2402	=head3 cf::object
1642		2403
…		…
1646		2407
1647	=over 4	2408	=over 4
1648		2409
1649	=item $ob->inv_recursive	2410	=item $ob->inv_recursive
1650		2411
1651	Returns the inventory of the object _and_ their inventories, recursively.	2412	Returns the inventory of the object I<and> their inventories, recursively,
		2413	but I<not> the object itself.
1652		2414
1653	=cut	2415	=cut
1654		2416
1655	sub inv_recursive_;	2417	sub inv_recursive_;
1656	sub inv_recursive_ {	2418	sub inv_recursive_ {
…		…
1659		2421
1660	sub inv_recursive {	2422	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2423	inv_recursive_ inv $_[0]
1662	}	2424	}
1663		2425
		2426	=item $ref = $ob->ref
		2427
		2428	Creates and returns a persistent reference to an object that can be stored as a string.
		2429
		2430	=item $ob = cf::object::deref ($refstring)
		2431
		2432	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2433	even if the object actually exists. May block.
		2434
		2435	=cut
		2436
		2437	sub deref {
		2438	my ($ref) = @_;
		2439
		2440	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2441	my ($uuid, $name) = ($1, $2);
		2442	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2443	or return;
		2444	$pl->ob->uuid eq $uuid
		2445	or return;
		2446
		2447	$pl->ob
		2448	} else {
		2449	warn "$ref: cannot resolve object reference\n";
		2450	undef
		2451	}
		2452	}
		2453
1664	package cf;	2454	package cf;
1665		2455
1666	=back	2456	=back
1667		2457
1668	=head3 cf::object::player	2458	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2464	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2465	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2466	dialogue with the given NPC character.
1677		2467
1678	=cut	2468	=cut
		2469
		2470	our $SAY_CHANNEL = {
		2471	id => "say",
		2472	title => "Map",
		2473	reply => "say ",
		2474	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2475	};
		2476
		2477	our $CHAT_CHANNEL = {
		2478	id => "chat",
		2479	title => "Chat",
		2480	reply => "chat ",
		2481	tooltip => "Player chat and shouts, global to the server.",
		2482	};
1679		2483
1680	# rough implementation of a future "reply" method that works	2484	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2485	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2486	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2487	sub cf::object::player::reply($$$;$) {
…		…
1685		2489
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2490	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2491
1688	if ($self->{record_replies}) {	2492	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2493	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2494
1690	} else {	2495	} else {
		2496	my $pl = $self->contr;
		2497
		2498	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2499	my $dialog = $pl->{npc_dialog};
		2500	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2501
		2502	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2503	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2504	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2505	}
1693	}	2506	}
		2507	}
		2508
		2509	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2510
		2511	=cut
		2512
		2513	sub cf::object::send_msg {
		2514	my $pl = shift->contr
		2515	or return;
		2516	$pl->send_msg (@_);
1694	}	2517	}
1695		2518
1696	=item $player_object->may ("access")	2519	=item $player_object->may ("access")
1697		2520
1698	Returns wether the given player is authorized to access resource "access"	2521	Returns wether the given player is authorized to access resource "access"
…		…
1711		2534
1712	=item $player_object->enter_link	2535	=item $player_object->enter_link
1713		2536
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2537	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2538
1716	The player should be reaosnably safe there for short amounts of time. You	2539	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2540	I<MUST> call C<leave_link> as soon as possible, though.
1718		2541
		2542	Will never block.
		2543
1719	=item $player_object->leave_link ($map, $x, $y)	2544	=item $player_object->leave_link ($map, $x, $y)
1720		2545
1721	Moves the player out of the specila link map onto the given map. If the	2546	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2547	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2548	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2549	fails, to the emergency map position.
1725		2550
1726	Might block.	2551	Might block.
1727		2552
1728	=cut	2553	=cut
		2554
		2555	sub link_map {
		2556	unless ($LINK_MAP) {
		2557	$LINK_MAP = cf::map::find "{link}"
		2558	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2559	$LINK_MAP->load;
		2560	}
		2561
		2562	$LINK_MAP
		2563	}
1729		2564
1730	sub cf::object::player::enter_link {	2565	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2566	my ($self) = @_;
1732		2567
1733	$self->deactivate_recursive;	2568	$self->deactivate_recursive;
1734		2569
1735	return if $self->map == $LINK_MAP;	2570	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2571
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2572	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2573	if $self->map && $self->map->{path} ne "{link}";
1739		2574
1740	$self->enter_map ($LINK_MAP, 20, 20);	2575	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2576	}
1742		2577
1743	sub cf::object::player::leave_link {	2578	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2579	my ($self, $map, $x, $y) = @_;
		2580
		2581	return unless $self->contr->active;
1745		2582
1746	my $link_pos = delete $self->{_link_pos};	2583	my $link_pos = delete $self->{_link_pos};
1747		2584
1748	unless ($map) {	2585	unless ($map) {
1749	# restore original map position	2586	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2600	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2601	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2602	if $x <=0 && $y <= 0;
1766		2603
1767	$map->load;	2604	$map->load;
1768	$map->load_diag;	2605	$map->load_neighbours;
1769		2606
1770	return unless $self->contr->active;	2607	return unless $self->contr->active;
1771	$self->activate_recursive;	2608	$self->activate_recursive;
		2609
		2610	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2611	$self->enter_map ($map, $x, $y);
1773	}	2612	}
1774		2613
1775	cf::player->attach (	2614	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2615
1779	# abort map switching before logout	2616	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2617	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2618	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2619	the new (success) or old (failed) map position. In either case, $done will
1783	};	2620	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2621
1789	# try to abort aborted map switching on player login :)	2622	Note that $check will be called with a potentially non-loaded map, so if
1790	# should happen only on crashes	2623	it needs a loaded map it has to call C<< ->load >>.
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2624
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2625	=cut
		2626
		2627	our $GOTOGEN;
1810		2628
1811	sub cf::object::player::goto {	2629	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2630	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2631
1814	$path = new cf::path $path;	2632	# do generation counting so two concurrent goto's will be executed in-order
		2633	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2634
1816	$self->enter_link;	2635	$self->enter_link;
1817		2636
1818	(async {	2637	(async {
1819	my $map = cf::map::find $path->as_string;	2638	$Coro::current->{desc} = "player::goto $path $x $y";
		2639
		2640	# *tag paths override both path and x|y
		2641	if ($path =~ /^\*(.*)$/) {
		2642	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2643	my $ob = $obs[rand @obs];
		2644
		2645	# see if we actually can go there
		2646	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2647	$ob = $obs[rand @obs];
		2648	} else {
		2649	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
		2651	# else put us there anyways for now #d#
		2652
		2653	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2654	} else {
		2655	($path, $x, $y) = (undef, undef, undef);
		2656	}
		2657	}
		2658
		2659	my $map = eval {
		2660	my $map = defined $path ? cf::map::find $path : undef;
		2661
		2662	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2663	$map = $map->customise_for ($self);
1821		2664	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2665	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2666	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
1826		2668
		2669	$map
		2670	};
		2671
		2672	if ($@) {
		2673	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2674	LOG llevError | logBacktrace, Carp::longmess $@;
		2675	}
		2676
		2677	if ($gen == $self->{_goto_generation}) {
		2678	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2679	$self->leave_link ($map, $x, $y);
		2680	}
		2681
		2682	$done->() if $done;
1828	})->prio (1);	2683	})->prio (1);
1829	}	2684	}
1830		2685
1831	=item $player_object->enter_exit ($exit_object)	2686	=item $player_object->enter_exit ($exit_object)
1832		2687
…		…
1834		2689
1835	sub parse_random_map_params {	2690	sub parse_random_map_params {
1836	my ($spec) = @_;	2691	my ($spec) = @_;
1837		2692
1838	my $rmp = { # defaults	2693	my $rmp = { # defaults
1839	xsize => 10,	2694	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2695	ysize => (cf::rndm 15, 40),
		2696	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2697	#layout => string,
1841	};	2698	};
1842		2699
1843	for (split /\n/, $spec) {	2700	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2701	my ($k, $v) = split /\s+/, $_, 2;
1845		2702
…		…
1857	# that depends on the exit object	2714	# that depends on the exit object
1858		2715
1859	my $rmp = parse_random_map_params $exit->msg;	2716	my $rmp = parse_random_map_params $exit->msg;
1860		2717
1861	if ($exit->map) {	2718	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2719	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2720	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2721	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2722	$rmp->{origin_y} = $exit->y;
		2723
		2724	$exit->map->touch;
1866	}	2725	}
1867		2726
1868	$rmp->{random_seed} ||= $exit->random_seed;	2727	$rmp->{random_seed} ||= $exit->random_seed;
1869		2728
1870	my $data = cf::to_json $rmp;	2729	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2730	my $md5 = Digest::MD5::md5_hex $data;
		2731	my $meta = "$RANDOMDIR/$md5.meta";
1872		2732
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2733	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2734	aio_write $fh, 0, (length $data), $data, 0;
		2735	undef $fh;
		2736	aio_rename "$meta~", $meta;
1875		2737
		2738	my $slaying = "?random/$md5";
		2739
		2740	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2741	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2742	$exit->msg (undef);
		2743	}
1878	}	2744	}
1879	}	2745	}
1880		2746
1881	sub cf::object::player::enter_exit {	2747	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2748	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2750	return unless $self->type == cf::PLAYER;
1885		2751
1886	$self->enter_link;	2752	$self->enter_link;
1887		2753
1888	(async {	2754	(async {
1889	$self->deactivate_recursive; # just to be sure	2755	$Coro::current->{desc} = "enter_exit";
		2756
1890	unless (eval {	2757	unless (eval {
		2758	$self->deactivate_recursive; # just to be sure
		2759
		2760	# random map handling
		2761	{
		2762	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2763
1891	prepare_random_map $exit	2764	prepare_random_map $exit
1892	if $exit->slaying eq "/!";	2765	if $exit->slaying eq "/!";
		2766	}
1893		2767
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2768	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2769	my $x = $exit->stats->hp;
		2770	my $y = $exit->stats->sp;
1896		2771
		2772	$self->goto ($map, $x, $y);
		2773
		2774	# if exit is damned, update players death & WoR home-position
		2775	$self->contr->savebed ($map, $x, $y)
		2776	if $exit->flag (cf::FLAG_DAMNED);
		2777
1897	1;	2778	1
1898	}) {	2779	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2780	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2781	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2782	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2783	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2784
1904	warn "ERROR in enter_exit: $@";	2785	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2786	$self->leave_link;
1906	}	2787	}
1907	})->prio (1);	2788	})->prio (1);
…		…
1920		2801
1921	sub cf::client::send_drawinfo {	2802	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2803	my ($self, $text, $flags) = @_;
1923		2804
1924	utf8::encode $text;	2805	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2806	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2807	}
1927		2808
		2809	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2810
		2811	Send a drawinfo or msg packet to the client, formatting the msg for the
		2812	client if neccessary. C<$type> should be a string identifying the type of
		2813	the message, with C<log> being the default. If C<$color> is negative, suppress
		2814	the message unless the client supports the msg packet.
		2815
		2816	=cut
		2817
		2818	# non-persistent channels (usually the info channel)
		2819	our %CHANNEL = (
		2820	"c/identify" => {
		2821	id => "infobox",
		2822	title => "Identify",
		2823	reply => undef,
		2824	tooltip => "Items recently identified",
		2825	},
		2826	"c/examine" => {
		2827	id => "infobox",
		2828	title => "Examine",
		2829	reply => undef,
		2830	tooltip => "Signs and other items you examined",
		2831	},
		2832	"c/book" => {
		2833	id => "infobox",
		2834	title => "Book",
		2835	reply => undef,
		2836	tooltip => "The contents of a note or book",
		2837	},
		2838	"c/lookat" => {
		2839	id => "infobox",
		2840	title => "Look",
		2841	reply => undef,
		2842	tooltip => "What you saw there",
		2843	},
		2844	"c/who" => {
		2845	id => "infobox",
		2846	title => "Players",
		2847	reply => undef,
		2848	tooltip => "Shows players who are currently online",
		2849	},
		2850	"c/body" => {
		2851	id => "infobox",
		2852	title => "Body Parts",
		2853	reply => undef,
		2854	tooltip => "Shows which body parts you posess and are available",
		2855	},
		2856	"c/uptime" => {
		2857	id => "infobox",
		2858	title => "Uptime",
		2859	reply => undef,
		2860	tooltip => "How long the server has been running since last restart",
		2861	},
		2862	"c/mapinfo" => {
		2863	id => "infobox",
		2864	title => "Map Info",
		2865	reply => undef,
		2866	tooltip => "Information related to the maps",
		2867	},
		2868	"c/party" => {
		2869	id => "party",
		2870	title => "Party",
		2871	reply => "gsay ",
		2872	tooltip => "Messages and chat related to your party",
		2873	},
		2874	);
		2875
		2876	sub cf::client::send_msg {
		2877	my ($self, $channel, $msg, $color, @extra) = @_;
		2878
		2879	$msg = $self->pl->expand_cfpod ($msg);
		2880
		2881	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2882
		2883	# check predefined channels, for the benefit of C
		2884	if ($CHANNEL{$channel}) {
		2885	$channel = $CHANNEL{$channel};
		2886
		2887	$self->ext_msg (channel_info => $channel)
		2888	if $self->can_msg;
		2889
		2890	$channel = $channel->{id};
		2891
		2892	} elsif (ref $channel) {
		2893	# send meta info to client, if not yet sent
		2894	unless (exists $self->{channel}{$channel->{id}}) {
		2895	$self->{channel}{$channel->{id}} = $channel;
		2896	$self->ext_msg (channel_info => $channel)
		2897	if $self->can_msg;
		2898	}
		2899
		2900	$channel = $channel->{id};
		2901	}
		2902
		2903	return unless @extra || length $msg;
		2904
		2905	if ($self->can_msg) {
		2906	# default colour, mask it out
		2907	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2908	if $color & cf::NDI_DEF;
		2909
		2910	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2911	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2912	} else {
		2913	if ($color >= 0) {
		2914	# replace some tags by gcfclient-compatible ones
		2915	for ($msg) {
		2916	1 while
		2917	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2918	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2919	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2920	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2921	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2922	}
		2923
		2924	$color &= cf::NDI_COLOR_MASK;
		2925
		2926	utf8::encode $msg;
		2927
		2928	if (0 && $msg =~ /\[/) {
		2929	# COMMAND/INFO
		2930	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2931	} else {
		2932	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2933	$self->send_packet ("drawinfo $color $msg")
		2934	}
		2935	}
		2936	}
		2937	}
		2938
		2939	=item $client->ext_msg ($type, @msg)
		2940
		2941	Sends an ext event to the client.
		2942
		2943	=cut
		2944
		2945	sub cf::client::ext_msg($$@) {
		2946	my ($self, $type, @msg) = @_;
		2947
		2948	if ($self->extcmd == 2) {
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2950	} elsif ($self->extcmd == 1) { # TODO: remove
		2951	push @msg, msgtype => "event_$type";
		2952	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2953	}
		2954	}
		2955
		2956	=item $client->ext_reply ($msgid, @msg)
		2957
		2958	Sends an ext reply to the client.
		2959
		2960	=cut
		2961
		2962	sub cf::client::ext_reply($$@) {
		2963	my ($self, $id, @msg) = @_;
		2964
		2965	if ($self->extcmd == 2) {
		2966	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2967	} elsif ($self->extcmd == 1) {
		2968	#TODO: version 1, remove
		2969	unshift @msg, msgtype => "reply", msgid => $id;
		2970	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2971	}
		2972	}
1928		2973
1929	=item $success = $client->query ($flags, "text", \&cb)	2974	=item $success = $client->query ($flags, "text", \&cb)
1930		2975
1931	Queues a query to the client, calling the given callback with	2976	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2977	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2978	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2979
1935	Queries can fail, so check the return code. Or don't, as queries will become	2980	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2981	become reliable at some point in the future.
1937		2982
1938	=cut	2983	=cut
1939		2984
1940	sub cf::client::query {	2985	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2986	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2994	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2995	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2996
1952	$self->send_packet ($self->{query_queue}[0][0])	2997	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2998	if @{ $self->{query_queue} } == 1;
		2999
		3000	1
1954	}	3001	}
1955		3002
1956	cf::client->attach (	3003	cf::client->attach (
		3004	on_connect => sub {
		3005	my ($ns) = @_;
		3006
		3007	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3008	},
1957	on_reply => sub {	3009	on_reply => sub {
1958	my ($ns, $msg) = @_;	3010	my ($ns, $msg) = @_;
1959		3011
1960	# this weird shuffling is so that direct followup queries	3012	# this weird shuffling is so that direct followup queries
1961	# get handled first	3013	# get handled first
1962	my $queue = delete $ns->{query_queue}	3014	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	3015	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		3016
1965	(shift @$queue)->[1]->($msg);	3017	(shift @$queue)->[1]->($msg);
		3018	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3019
1967	push @{ $ns->{query_queue} }, @$queue;	3020	push @{ $ns->{query_queue} }, @$queue;
1968		3021
1969	if (@{ $ns->{query_queue} } == @$queue) {	3022	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3023	if (@$queue) {
…		…
1972	} else {	3025	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3026	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3027	}
1975	}	3028	}
1976	},	3029	},
		3030	on_exticmd => sub {
		3031	my ($ns, $buf) = @_;
		3032
		3033	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3034
		3035	if (ref $msg) {
		3036	my ($type, $reply, @payload) =
		3037	"ARRAY" eq ref $msg
		3038	? @$msg
		3039	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3040
		3041	my @reply;
		3042
		3043	if (my $cb = $EXTICMD{$type}) {
		3044	@reply = $cb->($ns, @payload);
		3045	}
		3046
		3047	$ns->ext_reply ($reply, @reply)
		3048	if $reply;
		3049
		3050	} else {
		3051	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3052	}
		3053
		3054	cf::override;
		3055	},
1977	);	3056	);
1978		3057
1979	=item $client->async (\&cb)	3058	=item $client->async (\&cb)
1980		3059
1981	Create a new coroutine, running the specified callback. The coroutine will	3060	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	3101	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3102	our $safe_hole = new Safe::Hole;
2024		3103
2025	$SIG{FPE} = 'IGNORE';	3104	$SIG{FPE} = 'IGNORE';
2026		3105
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3106	$safe->permit_only (Opcode::opset qw(
		3107	:base_core :base_mem :base_orig :base_math
		3108	grepstart grepwhile mapstart mapwhile
		3109	sort time
		3110	));
2028		3111
2029	# here we export the classes and methods available to script code	3112	# here we export the classes and methods available to script code
2030		3113
2031	=pod	3114	=pod
2032		3115
2033	The following fucntions and emthods are available within a safe environment:	3116	The following functions and methods are available within a safe environment:
2034		3117
2035	cf::object contr pay_amount pay_player map	3118	cf::object
		3119	contr pay_amount pay_player map x y force_find force_add destroy
		3120	insert remove name archname title slaying race decrease split
		3121
2036	cf::object::player player	3122	cf::object::player
2037	cf::player peaceful	3123	player
2038	cf::map trigger	3124
		3125	cf::player
		3126	peaceful
		3127
		3128	cf::map
		3129	trigger
2039		3130
2040	=cut	3131	=cut
2041		3132
2042	for (	3133	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3134	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3135	insert remove inv nrof name archname title slaying race
		3136	decrease split destroy change_exp)],
2044	["cf::object::player" => qw(player)],	3137	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3138	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	3139	["cf::map" => qw(trigger)],
2047	) {	3140	) {
2048	no strict 'refs';	3141	no strict 'refs';
…		…
2119	=back	3212	=back
2120		3213
2121	=cut	3214	=cut
2122		3215
2123	#############################################################################	3216	#############################################################################
		3217	# the server's init and main functions
2124		3218
2125	=head2 EXTENSION DATABASE SUPPORT	3219	sub load_facedata($) {
		3220	my ($path) = @_;
2126		3221
2127	Crossfire maintains a very simple database for extension use. It can	3222	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3223	# for this (global event?)
2129	excludes objects.	3224	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3225
2131	The parameter C<$family> should best start with the name of the extension	3226	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3227
2134	=over 4	3228	warn "loading facedata from $path\n";
2135		3229
2136	=item $hashref = cf::db_get $family	3230	my $facedata;
		3231	0 < aio_load $path, $facedata
		3232	or die "$path: $!";
2137		3233
2138	Return a hashref for use by the extension C<$family>, which can be	3234	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3235
2142	=item $value = cf::db_get $family => $key	3236	$facedata->{version} == 2
		3237	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3238
2144	Returns a single value from the database	3239	# patch in the exptable
2145		3240	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3241	type => FT_RSRC,
2147		3242	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3243	};
		3244	cf::cede_to_tick;
2197		3245
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3246	{
		3247	my $faces = $facedata->{faceinfo};
2202		3248
2203	sub db_get($;$) {	3249	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3250	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3251
2209	sub db_put($$;$) {	3252	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3253	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3254	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2212	} else {	3255	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		3256
2218	cf::global->attach (	3257	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3258	}
2223	);
2224	}
2225		3259
2226	#############################################################################	3260	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3261	next unless $info->{smooth};
2228		3262
2229	sub cfg_load {	3263	my $idx = cf::face::find $face
		3264	or next;
		3265
		3266	if (my $smooth = cf::face::find $info->{smooth}) {
		3267	cf::face::set_smooth $idx, $smooth;
		3268	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3269	} else {
		3270	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3271	}
		3272
		3273	cf::cede_to_tick;
		3274	}
		3275	}
		3276
		3277	{
		3278	my $anims = $facedata->{animinfo};
		3279
		3280	while (my ($anim, $info) = each %$anims) {
		3281	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3282	cf::cede_to_tick;
		3283	}
		3284
		3285	cf::anim::invalidate_all; # d'oh
		3286	}
		3287
		3288	{
		3289	# TODO: for gcfclient pleasure, we should give resources
		3290	# that gcfclient doesn't grok a >10000 face index.
		3291	my $res = $facedata->{resource};
		3292
		3293	while (my ($name, $info) = each %$res) {
		3294	if (defined $info->{type}) {
		3295	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3296	my $data;
		3297
		3298	if ($info->{type} & 1) {
		3299	# prepend meta info
		3300
		3301	my $meta = $enc->encode ({
		3302	name => $name,
		3303	%{ $info->{meta} || {} },
		3304	});
		3305
		3306	$data = pack "(w/a*)*", $meta, $info->{data};
		3307	} else {
		3308	$data = $info->{data};
		3309	}
		3310
		3311	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3312	cf::face::set_type $idx, $info->{type};
		3313	} else {
		3314	$RESOURCE{$name} = $info;
		3315	}
		3316
		3317	cf::cede_to_tick;
		3318	}
		3319	}
		3320
		3321	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3322
		3323	1
		3324	}
		3325
		3326	cf::global->attach (on_resource_update => sub {
		3327	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3328	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3329
		3330	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3331	my $sound = $soundconf->{compat}[$_]
		3332	or next;
		3333
		3334	my $face = cf::face::find "sound/$sound->[1]";
		3335	cf::sound::set $sound->[0] => $face;
		3336	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3337	}
		3338
		3339	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3340	my $face = cf::face::find "sound/$v";
		3341	cf::sound::set $k => $face;
		3342	}
		3343	}
		3344	});
		3345
		3346	register_exticmd fx_want => sub {
		3347	my ($ns, $want) = @_;
		3348
		3349	while (my ($k, $v) = each %$want) {
		3350	$ns->fx_want ($k, $v);
		3351	}
		3352	};
		3353
		3354	sub load_resource_file($) {
		3355	my $guard = lock_acquire "load_resource_file";
		3356
		3357	my $status = load_resource_file_ $_[0];
		3358	get_slot 0.1, 100;
		3359	cf::arch::commit_load;
		3360
		3361	$status
		3362	}
		3363
		3364	sub reload_regions {
		3365	# HACK to clear player env face cache, we need some signal framework
		3366	# for this (global event?)
		3367	%ext::player_env::MUSIC_FACE_CACHE = ();
		3368
		3369	load_resource_file "$MAPDIR/regions"
		3370	or die "unable to load regions file\n";
		3371
		3372	for (cf::region::list) {
		3373	$_->{match} = qr/$_->{match}/
		3374	if exists $_->{match};
		3375	}
		3376	}
		3377
		3378	sub reload_facedata {
		3379	load_facedata "$DATADIR/facedata"
		3380	or die "unable to load facedata\n";
		3381	}
		3382
		3383	sub reload_archetypes {
		3384	load_resource_file "$DATADIR/archetypes"
		3385	or die "unable to load archetypes\n";
		3386	}
		3387
		3388	sub reload_treasures {
		3389	load_resource_file "$DATADIR/treasures"
		3390	or die "unable to load treasurelists\n";
		3391	}
		3392
		3393	sub reload_resources {
		3394	warn "reloading resource files...\n";
		3395
		3396	reload_facedata;
		3397	reload_archetypes;
		3398	reload_regions;
		3399	reload_treasures;
		3400
		3401	warn "finished reloading resource files\n";
		3402	}
		3403
		3404	sub init {
		3405	my $guard = freeze_mainloop;
		3406
		3407	evthread_start IO::AIO::poll_fileno;
		3408
		3409	reload_resources;
		3410	}
		3411
		3412	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3413	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3414	or return;
2232		3415
2233	local $/;	3416	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3417	*CFG = YAML::Load <$fh>;
2235		3418
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3419	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2237		3420
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3421	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3422	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2249		3432
2250	sub main {	3433	sub main {
2251	# we must not ever block the main coroutine	3434	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3435	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3436	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3437	(async {
		3438	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3439	EV::loop EV::LOOP_ONESHOT;
		3440	})->prio (Coro::PRIO_MAX);
2255	};	3441	};
2256		3442
2257	cfg_load;	3443	{
2258	db_load;	3444	my $guard = freeze_mainloop;
		3445	reload_config;
		3446	db_init;
2259	load_extensions;	3447	load_extensions;
		3448
		3449	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3450	}
		3451
2260	Event::loop;	3452	EV::loop;
2261	}	3453	}
2262		3454
2263	#############################################################################	3455	#############################################################################
2264	# initialisation and cleanup	3456	# initialisation and cleanup
2265		3457
2266	# install some emergency cleanup handlers	3458	# install some emergency cleanup handlers
2267	BEGIN {	3459	BEGIN {
		3460	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3461	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3462	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3463	cf::cleanup "SIG$signal";
2274	},
2275	);	3464	};
		3465	}
		3466	}
		3467
		3468	sub write_runtime_sync {
		3469	my $runtime = "$LOCALDIR/runtime";
		3470
		3471	# first touch the runtime file to show we are still running:
		3472	# the fsync below can take a very very long time.
		3473
		3474	IO::AIO::aio_utime $runtime, undef, undef;
		3475
		3476	my $guard = cf::lock_acquire "write_runtime";
		3477
		3478	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3479	or return;
		3480
		3481	my $value = $cf::RUNTIME + 90 + 10;
		3482	# 10 is the runtime save interval, for a monotonic clock
		3483	# 60 allows for the watchdog to kill the server.
		3484
		3485	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3486	and return;
		3487
		3488	# always fsync - this file is important
		3489	aio_fsync $fh
		3490	and return;
		3491
		3492	# touch it again to show we are up-to-date
		3493	aio_utime $fh, undef, undef;
		3494
		3495	close $fh
		3496	or return;
		3497
		3498	aio_rename "$runtime~", $runtime
		3499	and return;
		3500
		3501	warn "runtime file written.\n";
		3502
2276	}	3503	1
		3504	}
		3505
		3506	our $uuid_lock;
		3507	our $uuid_skip;
		3508
		3509	sub write_uuid_sync($) {
		3510	$uuid_skip ||= $_[0];
		3511
		3512	return if $uuid_lock;
		3513	local $uuid_lock = 1;
		3514
		3515	my $uuid = "$LOCALDIR/uuid";
		3516
		3517	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3518	or return;
		3519
		3520	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3521	$uuid_skip = 0;
		3522
		3523	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3524	and return;
		3525
		3526	# always fsync - this file is important
		3527	aio_fsync $fh
		3528	and return;
		3529
		3530	close $fh
		3531	or return;
		3532
		3533	aio_rename "$uuid~", $uuid
		3534	and return;
		3535
		3536	warn "uuid file written ($value).\n";
		3537
		3538	1
		3539
		3540	}
		3541
		3542	sub write_uuid($$) {
		3543	my ($skip, $sync) = @_;
		3544
		3545	$sync ? write_uuid_sync $skip
		3546	: async { write_uuid_sync $skip };
2277	}	3547	}
2278		3548
2279	sub emergency_save() {	3549	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3550	my $freeze_guard = cf::freeze_mainloop;
2281		3551
2282	warn "enter emergency perl save\n";	3552	warn "enter emergency perl save\n";
2283		3553
2284	cf::sync_job {	3554	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3555	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3556	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3557	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3558	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3559	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3560	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3561	$pl->valid or next;
		3562	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3563	$pl->save;
2293	}	3564	}
2294	warn "end emergency player save\n";	3565	warn "end emergency player save\n";
2295		3566
2296	warn "begin emergency map save\n";	3567	warn "begin emergency map save\n";
…		…
2298	my $map = $cf::MAP{$path} or next;	3569	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3570	$map->valid or next;
2300	$map->save;	3571	$map->save;
2301	}	3572	}
2302	warn "end emergency map save\n";	3573	warn "end emergency map save\n";
		3574
		3575	warn "begin emergency database checkpoint\n";
		3576	BDB::db_env_txn_checkpoint $DB_ENV;
		3577	warn "end emergency database checkpoint\n";
		3578
		3579	warn "begin write uuid\n";
		3580	write_uuid_sync 1;
		3581	warn "end write uuid\n";
2303	};	3582	};
2304		3583
2305	warn "leave emergency perl save\n";	3584	warn "leave emergency perl save\n";
2306	}	3585	}
2307		3586
		3587	sub post_cleanup {
		3588	my ($make_core) = @_;
		3589
		3590	warn Carp::longmess "post_cleanup backtrace"
		3591	if $make_core;
		3592	}
		3593
		3594	# a safer delete_package, copied from Symbol
		3595	sub clear_package($) {
		3596	my $pkg = shift;
		3597
		3598	# expand to full symbol table name if needed
		3599	unless ($pkg =~ /^main::.*::$/) {
		3600	$pkg = "main$pkg" if $pkg =~ /^::/;
		3601	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3602	$pkg .= '::' unless $pkg =~ /::$/;
		3603	}
		3604
		3605	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3606	my $stem_symtab = *{$stem}{HASH};
		3607
		3608	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3609	or return;
		3610
		3611	# clear all symbols
		3612	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3613	for my $name (keys %$leaf_symtab) {
		3614	_gv_clear *{"$pkg$name"};
		3615	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3616	}
		3617	warn "cleared package #$pkg\n";#d#
		3618	}
		3619
		3620	our $RELOAD; # how many times to reload
		3621
2308	sub reload() {	3622	sub do_reload_perl() {
2309	# can/must only be called in main	3623	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3624	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3625	warn "can only reload from main coroutine";
2312	return;	3626	return;
2313	}	3627	}
2314		3628
		3629	return if $RELOAD++;
		3630
		3631	while ($RELOAD) {
2315	warn "reloading...";	3632	warn "reloading...";
2316		3633
2317	warn "freezing server";	3634	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3635
		3636	cf::sync_job {
		3637	cf::write_runtime_sync; # external watchdog should not bark
2319	cf::emergency_save;	3638	cf::emergency_save;
		3639	cf::write_runtime_sync; # external watchdog should not bark
2320		3640
2321	warn "sync database to disk";	3641	warn "syncing database to disk";
2322	cf::db_sync;	3642	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3643
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3644	# if anything goes wrong in here, we should simply crash as we already saved
2327		3645
2328	warn "cancel all watchers";	3646	warn "flushing outstanding aio requests";
2329	for (Event::all_watchers) {	3647	while (IO::AIO::nreqs || BDB::nreqs) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3648	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();
2336
2337	warn "remove commands";
2338	%COMMAND = ();
2339
2340	warn "remove ext commands";
2341	%EXTCMD = ();
2342
2343	warn "unload/nuke all extensions";
2344	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";
2346
2347	if (my $cb = $pkg->can ("unload")) {
2348	eval {
2349	$cb->($pkg);
2350	1
2351	} or warn "$pkg unloaded, but with errors: $@";
2352	}	3649	}
2353		3650
		3651	warn "cancelling all extension coros";
		3652	$_->cancel for values %EXT_CORO;
		3653	%EXT_CORO = ();
		3654
		3655	warn "removing commands";
		3656	%COMMAND = ();
		3657
		3658	warn "removing ext/exti commands";
		3659	%EXTCMD = ();
		3660	%EXTICMD = ();
		3661
		3662	warn "unloading/nuking all extensions";
		3663	for my $pkg (@EXTS) {
2354	warn "... nuking $pkg";	3664	warn "... unloading $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357		3665
2358	warn "unload all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361
2362	warn "removing <$k>";
2363	delete $INC{$k};
2364
2365	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;
2367
2368	if (my $cb = $k->can ("unload_module")) {	3666	if (my $cb = $pkg->can ("unload")) {
		3667	eval {
2369	$cb->();	3668	$cb->($pkg);
		3669	1
		3670	} or warn "$pkg unloaded, but with errors: $@";
		3671	}
		3672
		3673	warn "... clearing $pkg";
		3674	clear_package $pkg;
2370	}	3675	}
2371		3676
2372	Symbol::delete_package $k;	3677	warn "unloading all perl modules loaded from $LIBDIR";
		3678	while (my ($k, $v) = each %INC) {
		3679	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3680
		3681	warn "... unloading $k";
		3682	delete $INC{$k};
		3683
		3684	$k =~ s/\.pm$//;
		3685	$k =~ s/\//::/g;
		3686
		3687	if (my $cb = $k->can ("unload_module")) {
		3688	$cb->();
		3689	}
		3690
		3691	clear_package $k;
2373	}	3692	}
2374		3693
2375	warn "get rid of safe::, as good as possible";	3694	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3695	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3696	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3697
2379	warn "unload cf.pm \"a bit\"";	3698	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3699	delete $INC{"cf.pm"};
		3700	delete $INC{"cf/pod.pm"};
2381		3701
2382	# don't, removes xs symbols, too,	3702	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3703	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3704	#clear_package __PACKAGE__;
2385		3705
		3706	warn "unload completed, starting to reload now";
		3707
2386	warn "reloading cf.pm";	3708	warn "reloading cf.pm";
2387	require cf;	3709	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3710	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3711
2390	warn "load config and database again";	3712	warn "loading config and database again";
2391	cf::cfg_load;	3713	cf::reload_config;
2392	cf::db_load;
2393		3714
2394	warn "load extensions";	3715	warn "loading extensions";
2395	cf::load_extensions;	3716	cf::load_extensions;
2396		3717
2397	warn "reattach attachments to objects/players";	3718	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3719	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3720	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3721	reattach $_ for values %MAP;
		3722	warn "reattaching attachments to players";
		3723	reattach $_ for values %PLAYER;
		3724
		3725	warn "leaving sync_job";
		3726
		3727	1
		3728	} or do {
		3729	warn $@;
		3730	cf::cleanup "error while reloading, exiting.";
		3731	};
		3732
		3733	warn "reloaded";
		3734	--$RELOAD;
		3735	}
		3736	};
		3737
		3738	our $RELOAD_WATCHER; # used only during reload
		3739
		3740	sub reload_perl() {
		3741	# doing reload synchronously and two reloads happen back-to-back,
		3742	# coro crashes during coro_state_free->destroy here.
		3743
		3744	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3745	do_reload_perl;
		3746	undef $RELOAD_WATCHER;
2401	};	3747	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3748	}
2454		3749
2455	register_command "reload" => sub {	3750	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3751	my ($who, $arg) = @_;
2457		3752
2458	if ($who->flag (FLAG_WIZ)) {	3753	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3754	$who->message ("reloading server.");
		3755	async {
		3756	$Coro::current->{desc} = "perl_reload";
		3757	reload_perl;
		3758	};
2462	}	3759	}
2463	};	3760	};
2464		3761
2465	unshift @INC, $LIBDIR;	3762	unshift @INC, $LIBDIR;
2466		3763
2467	$TICK_WATCHER = Event->timer (	3764	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		3765
		3766	our @WAIT_FOR_TICK;
		3767	our @WAIT_FOR_TICK_BEGIN;
		3768
		3769	sub wait_for_tick {
		3770	return if tick_inhibit || $Coro::current == $Coro::main;
		3771
		3772	my $signal = new Coro::Signal;
		3773	push @WAIT_FOR_TICK, $signal;
		3774	$signal->wait;
		3775	}
		3776
		3777	sub wait_for_tick_begin {
		3778	return if tick_inhibit || $Coro::current == $Coro::main;
		3779
		3780	my $signal = new Coro::Signal;
		3781	push @WAIT_FOR_TICK_BEGIN, $signal;
		3782	$signal->wait;
		3783	}
		3784
		3785	sub tick {
		3786	if ($Coro::current != $Coro::main) {
		3787	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3788	unless ++$bug_warning > 10;
		3789	return;
		3790	}
		3791
2475	cf::server_tick; # one server iteration	3792	cf::server_tick; # one server iteration
2476	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;
2478		3793
2479	$WAIT_FOR_TICK->broadcast;	3794	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3795	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2481		3796	Coro::async_pool {
2482	# if we are delayed by four ticks or more, skip them all	3797	$Coro::current->{desc} = "runtime saver";
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2484
2485	$TICK_WATCHER->at ($NEXT_TICK);
2486	$TICK_WATCHER->start;
2487	},
2488	);
2489
2490	IO::AIO::max_poll_time $TICK * 0.2;
2491
2492	Event->io (
2493	fd => IO::AIO::poll_fileno,
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,
2502	after => 0,
2503	interval => 10,
2504	cb => sub {
2505	(Coro::unblock_sub {
2506	write_runtime	3798	write_runtime_sync
2507	or warn "ERROR: unable to write runtime file: $!";	3799	or warn "ERROR: unable to write runtime file: $!";
2508	})->();	3800	};
2509	},	3801	}
2510	);	3802
		3803	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3804	$sig->send;
		3805	}
		3806	while (my $sig = shift @WAIT_FOR_TICK) {
		3807	$sig->send;
		3808	}
		3809
		3810	$LOAD = ($NOW - $TICK_START) / $TICK;
		3811	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3812
		3813	if (0) {
		3814	if ($NEXT_TICK) {
		3815	my $jitter = $TICK_START - $NEXT_TICK;
		3816	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3817	warn "jitter $JITTER\n";#d#
		3818	}
		3819	}
		3820	}
		3821
		3822	{
		3823	# configure BDB
		3824
		3825	BDB::min_parallel 8;
		3826	BDB::max_poll_reqs $TICK * 0.1;
		3827	$AnyEvent::BDB::WATCHER->priority (1);
		3828
		3829	unless ($DB_ENV) {
		3830	$DB_ENV = BDB::db_env_create;
		3831	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3832	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3833	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3834	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3835	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3836
		3837	cf::sync_job {
		3838	eval {
		3839	BDB::db_env_open
		3840	$DB_ENV,
		3841	$BDBDIR,
		3842	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3843	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3844	0666;
		3845
		3846	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3847	};
		3848
		3849	cf::cleanup "db_env_open(db): $@" if $@;
		3850	};
		3851	}
		3852
		3853	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3854	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3855	};
		3856	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3857	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3858	};
		3859	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3860	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3861	};
		3862	}
		3863
		3864	{
		3865	# configure IO::AIO
		3866
		3867	IO::AIO::min_parallel 8;
		3868	IO::AIO::max_poll_time $TICK * 0.1;
		3869	undef $AnyEvent::AIO::WATCHER;
		3870	}
		3871
		3872	my $_log_backtrace;
		3873
		3874	sub _log_backtrace {
		3875	my ($msg, @addr) = @_;
		3876
		3877	$msg =~ s/\n//;
		3878
		3879	# limit the # of concurrent backtraces
		3880	if ($_log_backtrace < 2) {
		3881	++$_log_backtrace;
		3882	async {
		3883	$Coro::current->{desc} = "abt $msg";
		3884
		3885	my @bt = fork_call {
		3886	@addr = map { sprintf "%x", $_ } @addr;
		3887	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3888	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3889	or die "addr2line: $!";
		3890
		3891	my @funcs;
		3892	my @res = <$fh>;
		3893	chomp for @res;
		3894	while (@res) {
		3895	my ($func, $line) = splice @res, 0, 2, ();
		3896	push @funcs, "[$func] $line";
		3897	}
		3898
		3899	@funcs
		3900	};
		3901
		3902	LOG llevInfo, "[ABT] $msg\n";
		3903	LOG llevInfo, "[ABT] $_\n" for @bt;
		3904	--$_log_backtrace;
		3905	};
		3906	} else {
		3907	LOG llevInfo, "[ABT] $msg\n";
		3908	LOG llevInfo, "[ABT] [suppressed]\n";
		3909	}
		3910	}
		3911
		3912	# load additional modules
		3913	use cf::pod;
2511		3914
2512	END { cf::emergency_save }	3915	END { cf::emergency_save }
2513		3916
2514	1	3917	1
2515		3918

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