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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.155 by root, Tue Jan 9 21:32:42 2007 UTC vs.
Revision 1.434 by root, Thu May 29 03:27:37 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
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::AnyEvent;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
		43	use Coro::AnyEvent;
18	use Coro::AIO;	44	use Coro::AIO;
		45	use Coro::BDB;
		46	use Coro::Storable;
		47	use Coro::Util ();
19		48
		49	use JSON::XS 2.01 ();
		50	use BDB ();
20	use Data::Dumper;	51	use Data::Dumper;
21	use Digest::MD5;	52	use Digest::MD5;
22	use Fcntl;	53	use Fcntl;
		54	use YAML ();
23	use IO::AIO 2.32 ();	55	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	56	use Time::HiRes;
		57	use Compress::LZF;
		58	use Digest::MD5 ();
26		59
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	60	AnyEvent::detect;
		61
		62	IO::AIO::max_poll_reqs 1;#d#
		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 = ();
		76
		77	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	78	our %EXTCMD = ();
		79	our %EXTICMD = ();
		80	our %EXT_CORO = (); # coroutines bound to extensions
		81	our %EXT_MAP = (); # pluggable maps
39		82
		83	our $RELOAD; # number of reloads so far
40	our @EVENT;	84	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		85
43	our $TICK = MAX_TIME * 1e-6;	86	our $CONFDIR = confdir;
44	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
45	our $NEXT_TICK;	101	our $NEXT_TICK;
46	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;
47		108
48	our %CFG;	109	our %CFG;
49		110
50	our $UPTIME; $UPTIME ||= time;	111	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	112	our $RUNTIME;
		113	our $NOW;
52		114
53	our %PLAYER; # all users	115	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	116	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	117	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		118
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	119	# used to convert map paths into valid unix filenames by replacing / by ∕
60	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 $TICK_START; # for load detecting purposes
61		126
62	binmode STDOUT;	127	binmode STDOUT;
63	binmode STDERR;	128	binmode STDERR;
64		129
65	# read virtual server time, if available	130	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	131	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	132	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	133	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	134	$RUNTIME = <$fh> + 0.;
70	}	135	}
71		136
72	mkdir cf::localdir;	137	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	138	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		139
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	140	our $EMERGENCY_POSITION;
		141
		142	sub cf::map::normalise;
81		143
82	#############################################################################	144	#############################################################################
83		145
84	=head2 GLOBAL VARIABLES	146	=head2 GLOBAL VARIABLES
85		147
…		…
92	=item $cf::RUNTIME	154	=item $cf::RUNTIME
93		155
94	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
95	every server tick.	157	every server tick.
96		158
97	=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
98		162
99	The perl library directory, where extensions and cf-specific modules can	163	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		167
102	=item $cf::NOW	168	=item $cf::NOW
103		169
104	The time of the last (current) server tick.	170	The time of the last (current) server tick.
105		171
106	=item $cf::TICK	172	=item $cf::TICK
107		173
108	The interval between server ticks, in seconds.	174	The interval between server ticks, in seconds.
109		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
110	=item %cf::CFG	186	=item %cf::CFG
111		187
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	188	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	189	from wherever your confdir points to.
114		190
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	191	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		192
117	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
118	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
119	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.
120	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.
121		202
122	=back	203	=back
123		204
124	=cut	205	=cut
125		206
126	BEGIN {	207	BEGIN {
127	*CORE::GLOBAL::warn = sub {	208	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	209	my $msg = join "", @_;
129	utf8::encode $msg;
130		210
131	$msg .= "\n"	211	$msg .= "\n"
132	unless $msg =~ /\n$/;	212	unless $msg =~ /\n$/;
133		213
		214	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		215
134	LOG llevError, $msg;	216	LOG llevError, $msg;
135	};	217	};
136	}	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#?
137		234
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	235	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	236	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	237	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	238	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		242
145	# 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
146	# within the Safe compartment.	244	# within the Safe compartment.
147	for my $pkg (qw(	245	for my $pkg (qw(
148	cf::global cf::attachable	246	cf::global cf::attachable
…		…
153	)) {	251	)) {
154	no strict 'refs';	252	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	253	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	254	}
157		255
158	$Event::DIED = sub {	256	$EV::DIED = sub {
159	warn "error in event callback: @_";	257	warn "error in event callback: @_";
160	};	258	};
161		259
162	my %ext_pkg;	260	#############################################################################
163	my @exts;
164	my @hook;
165		261
166	=head2 UTILITY FUNCTIONS	262	=head2 UTILITY FUNCTIONS
167		263
168	=over 4	264	=over 4
169		265
…		…
188	$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;
189	$d	285	$d
190	} || "[unable to dump $_[0]: '$@']";	286	} || "[unable to dump $_[0]: '$@']";
191	}	287	}
192		288
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	289	=item $ref = cf::decode_json $json
196		290
197	Converts a JSON string into the corresponding perl data structure.	291	Converts a JSON string into the corresponding perl data structure.
198		292
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	293	=item $json = cf::encode_json $ref
207		294
208	Converts a perl data structure into its JSON representation.	295	Converts a perl data structure into its JSON representation.
209		296
210	=cut	297	=cut
211		298
212	sub to_json($) {	299	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	300
214	JSON::Syck::Dump $_[0]	301	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	302	sub decode_json($) { $json_coder->decode ($_[0]) }
216		303
217	=item cf::lock_wait $string	304	=item cf::lock_wait $string
218		305
219	Wait until the given lock is available. See cf::lock_acquire.	306	Wait until the given lock is available. See cf::lock_acquire.
220		307
…		…
223	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
224	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,
225	for example when the coroutine gets canceled), the lock is automatically	312	for example when the coroutine gets canceled), the lock is automatically
226	returned.	313	returned.
227		314
		315	Locks are *not* recursive, locking from the same coro twice results in a
		316	deadlocked coro.
		317
228	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
229	uses map_find and cf::map::load uses map_load).	319	uses map_find and cf::map::load uses map_load).
230		320
		321	=item $locked = cf::lock_active $string
		322
		323	Return true if the lock is currently active, i.e. somebody has locked it.
		324
231	=cut	325	=cut
232		326
233	our %LOCK;	327	our %LOCK;
		328	our %LOCKER;#d#
234		329
235	sub lock_wait($) {	330	sub lock_wait($) {
236	my ($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#
237		337
238	# wait for lock, if any	338	# wait for lock, if any
239	while ($LOCK{$key}) {	339	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	340	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	341	Coro::schedule;
…		…
247		347
248	# wait, to be sure we are not locked	348	# wait, to be sure we are not locked
249	lock_wait $key;	349	lock_wait $key;
250		350
251	$LOCK{$key} = [];	351	$LOCK{$key} = [];
		352	$LOCKER{$key} = $Coro::current;#d#
252		353
253	Coro::guard {	354	Coro::guard {
		355	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	356	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	357	$_->ready for @{ delete $LOCK{$key} };
256	}	358	}
257	}	359	}
258		360
		361	sub lock_active($) {
		362	my ($key) = @_;
		363
		364	! ! $LOCK{$key}
		365	}
		366
259	sub freeze_mainloop {	367	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	368	tick_inhibit_inc;
261		369
262	my $guard = Coro::guard { $TICK_WATCHER->start };	370	Coro::guard \&tick_inhibit_dec;
263	$TICK_WATCHER->stop;	371	}
264	$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	$sig->wait;
265	}	446	}
266		447
267	=item cf::async { BLOCK }	448	=item cf::async { BLOCK }
268		449
269	Currently the same as Coro::async_pool, meaning you cannot use	450	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		455
275	BEGIN { *async = \&Coro::async_pool }	456	BEGIN { *async = \&Coro::async_pool }
276		457
277	=item cf::sync_job { BLOCK }	458	=item cf::sync_job { BLOCK }
278		459
279	The design of crossfire+ requires that the main coro ($Coro::main) is	460	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	461	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	462	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		463	acceptable.
282		464
283	If it must be done, put the blocking parts into C<sync_job>. This will run	465	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	466	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	467	server will be frozen during this time, so the block should either finish
286	fast or be very important.	468	fast or be very important.
…		…
289		471
290	sub sync_job(&) {	472	sub sync_job(&) {
291	my ($job) = @_;	473	my ($job) = @_;
292		474
293	if ($Coro::current == $Coro::main) {	475	if ($Coro::current == $Coro::main) {
		476	my $time = EV::time;
		477
294	# this is the main coro, too bad, we have to block	478	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	479	# till the operation succeeds, freezing the server :/
296		480
297	# TODO: use suspend/resume instead	481	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	482
299	my $freeze_guard = freeze_mainloop;	483	my $freeze_guard = freeze_mainloop;
300		484
301	my $busy = 1;	485	my $busy = 1;
302	my @res;	486	my @res;
303		487
304	(async {	488	(async {
		489	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	490	@res = eval { $job->() };
306	warn $@ if $@;	491	warn $@ if $@;
307	undef $busy;	492	undef $busy;
308	})->prio (Coro::PRIO_MAX);	493	})->prio (Coro::PRIO_MAX);
309		494
310	while ($busy) {	495	while ($busy) {
311	Coro::cede or Event::one_event;	496	if (Coro::nready) {
		497	Coro::cede_notself;
		498	} else {
		499	EV::loop EV::LOOP_ONESHOT;
312	}	500	}
		501	}
		502
		503	my $time = EV::time - $time;
		504
		505	$TICK_START += $time; # do not account sync jobs to server load
313		506
314	wantarray ? @res : $res[0]	507	wantarray ? @res : $res[0]
315	} else {	508	} else {
316	# we are in another coroutine, how wonderful, everything just works	509	# we are in another coroutine, how wonderful, everything just works
317		510
…		…
319	}	512	}
320	}	513	}
321		514
322	=item $coro = cf::async_ext { BLOCK }	515	=item $coro = cf::async_ext { BLOCK }
323		516
324	Like async, but this coro is automcatially being canceled when the	517	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	518	extension calling this is being unloaded.
326		519
327	=cut	520	=cut
328		521
329	sub async_ext(&) {	522	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	530	$EXT_CORO{$coro+0} = $coro;
338		531
339	$coro	532	$coro
340	}	533	}
341		534
342	sub write_runtime {	535	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		536
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	Executes the given code block with the given arguments in a seperate
346	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.
347		541
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	542	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		543
352	aio_fsync $fh	544	sub fork_call(&@) {
353	and return;	545	my ($cb, @args) = @_;
354		546
355	close $fh	547	# we seemingly have to make a local copy of the whole thing,
356	or return;	548	# otherwise perl prematurely frees the stuff :/
		549	# TODO: investigate and fix (likely this will be rather laborious)
357		550
358	aio_rename "$runtime~", $runtime	551	my @res = Coro::Util::fork_eval {
359	and return;	552	reset_signals;
		553	&$cb
		554	}, @args;
360		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($$) {
		628	my $key = "$_[0]/$_[1]";
		629
		630	cf::sync_job {
		631	BDB::db_get $DB, undef, $key, my $data;
		632
		633	$! ? ()
		634	: $data
361	1	635	}
		636	}
		637
		638	sub db_put($$$) {
		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 });
362	}	722	}
363		723
364	=back	724	=back
365		725
366	=cut	726	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		727
490	#############################################################################	728	#############################################################################
491		729
492	=head2 ATTACHABLE OBJECTS	730	=head2 ATTACHABLE OBJECTS
493		731
…		…
495	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")
496	to it. All such attachable objects support the following methods.	734	to it. All such attachable objects support the following methods.
497		735
498	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>
499	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
500	crossfire+).	738	Deliantra).
501		739
502	=over 4	740	=over 4
503		741
504	=item $attachable->attach ($attachment, key => $value...)	742	=item $attachable->attach ($attachment, key => $value...)
505		743
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	857	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	858	our @CB_MAP = ();
621		859
622	my %attachment;	860	my %attachment;
623		861
		862	sub cf::attachable::thawer_merge {
		863	# simply override everything except _meta
		864	local $_[0]{_meta};
		865	%{$_[0]} = %{$_[1]};
		866	}
		867
624	sub _attach_cb($$$$) {	868	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	869	my ($registry, $event, $prio, $cb) = @_;
626		870
627	use sort 'stable';	871	use sort 'stable';
628		872
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	906	$registry = $CB_TYPE[$object_type] ||= [];
663		907
664	} elsif ($type eq "subtype") {	908	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	909	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	910	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	911	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		912
669	} elsif ($type eq "package") {	913	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	914	my $pkg = shift @arg;
671		915
672	while (my ($name, $id) = each %cb_id) {	916	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	945	_attach $registry, $klass, @attach;
702	}	946	}
703		947
704	$obj->{$name} = \%arg;	948	$obj->{$name} = \%arg;
705	} else {	949	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	950	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	951	}
708		952
709	$obj->{_attachment}{$name} = undef;	953	$obj->{_attachment}{$name} = undef;
710	}	954	}
711		955
…		…
713	if (ref $_[0]) {	957	if (ref $_[0]) {
714	_object_attach @_;	958	_object_attach @_;
715	} else {	959	} else {
716	_attach shift->_attach_registry, @_;	960	_attach shift->_attach_registry, @_;
717	}	961	}
		962	_recalc_want;
718	};	963	};
719		964
720	# all those should be optimised	965	# all those should be optimised
721	sub cf::attachable::detach {	966	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	967	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	970	delete $obj->{_attachment}{$name};
726	reattach ($obj);	971	reattach ($obj);
727	} else {	972	} else {
728	Carp::croak "cannot, currently, detach class attachments";	973	Carp::croak "cannot, currently, detach class attachments";
729	}	974	}
		975	_recalc_want;
730	};	976	};
731		977
732	sub cf::attachable::attached {	978	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	979	my ($obj, $name) = @_;
734		980
…		…
749	";	995	";
750	die if $@;	996	die if $@;
751	}	997	}
752		998
753	our $override;	999	our $override;
754	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?
755		1001
756	sub override {	1002	sub override {
757	$override = 1;	1003	$override = 1;
758	@invoke_results = ();	1004	@INVOKE_RESULTS = (@_);
759	}	1005	}
760		1006
761	sub do_invoke {	1007	sub do_invoke {
762	my $event = shift;	1008	my $event = shift;
763	my $callbacks = shift;	1009	my $callbacks = shift;
764		1010
765	@invoke_results = ();	1011	@INVOKE_RESULTS = ();
766		1012
767	local $override;	1013	local $override;
768		1014
769	for (@$callbacks) {	1015	for (@$callbacks) {
770	eval { &{$_->[1]} };	1016	eval { &{$_->[1]} };
…		…
779	}	1025	}
780		1026
781	0	1027	0
782	}	1028	}
783		1029
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1030	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1031
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1033
788	Generate an object-specific event with the given arguments.	1034	Generate an object-specific event with the given arguments.
789		1035
790	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
791	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
792	results (if you must, access C<@cf::invoke_results> directly).	1038	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1039
794	=back	1040	=back
795		1041
796	=cut	1042	=cut
797		1043
798	#############################################################################	1044	#############################################################################
799	# 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	}
800		1088
801	sub reattach {	1089	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1090	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1091	my ($obj) = @_;
		1092
		1093	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1094
805	my $registry = $obj->registry;	1095	my $registry = $obj->registry;
806		1096
807	@$registry = ();	1097	@$registry = ();
808		1098
…		…
823	cf::attachable->attach (	1113	cf::attachable->attach (
824	prio => -1000000,	1114	prio => -1000000,
825	on_instantiate => sub {	1115	on_instantiate => sub {
826	my ($obj, $data) = @_;	1116	my ($obj, $data) = @_;
827		1117
828	$data = from_json $data;	1118	$data = decode_json $data;
829		1119
830	for (@$data) {	1120	for (@$data) {
831	my ($name, $args) = @$_;	1121	my ($name, $args) = @$_;
832		1122
833	$obj->attach ($name, %{$args || {} });	1123	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1139	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1140	my ($filename, $rdata, $objs) = @_;
851		1141
852	sync_job {	1142	sync_job {
853	if (length $$rdata) {	1143	if (length $$rdata) {
		1144	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1145	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1146	$decname, length $$rdata, scalar @$objs;
856		1147
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1148	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1149	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1150	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1151	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1152	aio_close $fh;
862		1153
863	if (@$objs) {	1154	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1155	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1156	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1157	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1158	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1159	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1160	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1161	aio_rename "$filename.pst~", "$filename.pst";
871	}	1162	}
872	} else {	1163	} else {
873	aio_unlink "$filename.pst";	1164	aio_unlink "$filename.pst";
874	}	1165	}
…		…
879	}	1170	}
880	} else {	1171	} else {
881	aio_unlink $filename;	1172	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1173	aio_unlink "$filename.pst";
883	}	1174	}
884	}	1175	};
885	}	1176	}
886		1177
887	sub object_freezer_as_string {	1178	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1179	my ($rdata, $objs) = @_;
889		1180
…		…
901	or return;	1192	or return;
902		1193
903	unless (aio_stat "$filename.pst") {	1194	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1195	(aio_load "$filename.pst", $av) >= 0
905	or return;	1196	or return;
		1197
906	$av = eval { (Storable::thaw $av)->{objs} };	1198	my $st = eval { Coro::Storable::thaw $av };
		1199	$av = $st->{objs};
907	}	1200	}
908		1201
		1202	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1203	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1204	$decname, length $data, scalar @{$av || []};
		1205
911	return ($data, $av);	1206	($data, $av)
912	}	1207	}
		1208
		1209	=head2 COMMAND CALLBACKS
		1210
		1211	=over 4
		1212
		1213	=cut
913		1214
914	#############################################################################	1215	#############################################################################
915	# command handling &c	1216	# command handling &c
916		1217
917	=item cf::register_command $name => \&callback($ob,$args);	1218	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1231	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1232	}
932		1233
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1234	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1235
935	Register a callbackf ro execution when the client sends an extcmd packet.	1236	Register a callback for execution when the client sends an (synchronous)
		1237	extcmd packet. Ext commands will be processed in the order they are
		1238	received by the server, like other user commands. The first argument is
		1239	the logged-in player. Ext commands can only be processed after a player
		1240	has logged in successfully.
936		1241
937	If the callback returns something, it is sent back as if reply was being	1242	If the callback returns something, it is sent back as if reply was being
938	called.	1243	called.
939		1244
		1245	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1246
		1247	Register a callback for execution when the client sends an (asynchronous)
		1248	exticmd packet. Exti commands are processed by the server as soon as they
		1249	are received, i.e. out of order w.r.t. other commands. The first argument
		1250	is a client socket. Exti commands can be received anytime, even before
		1251	log-in.
		1252
		1253	If the callback returns something, it is sent back as if reply was being
		1254	called.
		1255
940	=cut	1256	=cut
941		1257
942	sub register_extcmd {	1258	sub register_extcmd {
943	my ($name, $cb) = @_;	1259	my ($name, $cb) = @_;
944		1260
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1261	$EXTCMD{$name} = $cb;
		1262	}
		1263
		1264	sub register_exticmd {
		1265	my ($name, $cb) = @_;
		1266
		1267	$EXTICMD{$name} = $cb;
949	}	1268	}
950		1269
951	cf::player->attach (	1270	cf::player->attach (
952	on_command => sub {	1271	on_command => sub {
953	my ($pl, $name, $params) = @_;	1272	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1281	cf::override;
963	},	1282	},
964	on_extcmd => sub {	1283	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1284	my ($pl, $buf) = @_;
966		1285
967	my $msg = eval { from_json $buf };	1286	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1287
969	if (ref $msg) {	1288	if (ref $msg) {
		1289	my ($type, $reply, @payload) =
		1290	"ARRAY" eq ref $msg
		1291	? @$msg
		1292	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1293
		1294	my @reply;
		1295
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1296	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1297	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1298	}
		1299
		1300	$pl->ext_reply ($reply, @reply)
		1301	if $reply;
		1302
975	} else {	1303	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1304	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1305	}
978		1306
979	cf::override;	1307	cf::override;
980	},	1308	},
981	);	1309	);
982		1310
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1311	sub load_extensions {
		1312	cf::sync_job {
		1313	my %todo;
		1314
1060	for my $ext (<$LIBDIR/*.ext>) {	1315	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1316	next unless -r $path;
1062	eval {	1317
1063	load_extension $ext;	1318	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1319	my $base = $1;
		1320	my $pkg = $1;
		1321	$pkg =~ s/[^[:word:]]/_/g;
		1322	$pkg = "ext::$pkg";
		1323
		1324	open my $fh, "<:utf8", $path
		1325	or die "$path: $!";
		1326
		1327	my $source = do { local $/; <$fh> };
		1328
		1329	my %ext = (
		1330	path => $path,
		1331	base => $base,
		1332	pkg => $pkg,
		1333	);
		1334
		1335	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1336	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1337
		1338	$ext{source} =
		1339	"package $pkg; use strict; use utf8;\n"
		1340	. "#line 1 \"$path\"\n{\n"
		1341	. $source
		1342	. "\n};\n1";
		1343
		1344	$todo{$base} = \%ext;
		1345	}
		1346
		1347	my %done;
		1348	while (%todo) {
		1349	my $progress;
		1350
		1351	while (my ($k, $v) = each %todo) {
		1352	for (split /,\s*/, $v->{meta}{depends}) {
		1353	goto skip
		1354	unless exists $done{$_};
		1355	}
		1356
		1357	warn "... loading '$k' into '$v->{pkg}'\n";
		1358
		1359	unless (eval $v->{source}) {
		1360	my $msg = $@ ? "$v->{path}: $@\n"
		1361	: "$v->{base}: extension inactive.\n";
		1362
		1363	if (exists $v->{meta}{mandatory}) {
		1364	warn $msg;
		1365	cf::cleanup "mandatory extension failed to load, exiting.";
		1366	}
		1367
		1368	warn $msg;
		1369	}
		1370
		1371	$done{$k} = delete $todo{$k};
		1372	push @EXTS, $v->{pkg};
		1373	$progress = 1;
1064	1	1374	}
1065	} or warn "$ext not loaded: $@";	1375
		1376	skip:
		1377	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1378	unless $progress;
		1379	}
1066	}	1380	};
1067	}	1381	}
1068		1382
1069	#############################################################################	1383	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1384
1072	*cf::mapsupport::on_clean = sub {	1385	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1386
1085	=head2 CORE EXTENSIONS	1387	=head2 CORE EXTENSIONS
1086		1388
1087	Functions and methods that extend core crossfire objects.	1389	Functions and methods that extend core crossfire objects.
1088		1390
…		…
1094		1396
1095	=head3 cf::player	1397	=head3 cf::player
1096		1398
1097	=over 4	1399	=over 4
1098		1400
		1401	=item cf::player::num_playing
		1402
		1403	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1404
		1405	=cut
		1406
		1407	sub num_playing {
		1408	scalar grep
		1409	$_->ob->map
		1410	&& !$_->hidden
		1411	&& !$_->ob->flag (cf::FLAG_WIZ),
		1412	cf::player::list
		1413	}
		1414
1099	=item cf::player::find $login	1415	=item cf::player::find $login
1100		1416
1101	Returns the given player object, loading it if necessary (might block).	1417	Returns the given player object, loading it if necessary (might block).
1102		1418
1103	=cut	1419	=cut
1104		1420
1105	sub playerdir($) {	1421	sub playerdir($) {
1106	cf::localdir	1422	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1423	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1424	}
1112		1425
1113	sub path($) {	1426	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1427	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1428
1116	(playerdir $login) . "/$login.pl"	1429	(playerdir $login) . "/playerdata"
1117	}	1430	}
1118		1431
1119	sub find_active($) {	1432	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1433	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1434	and $cf::PLAYER{$_[0]}->active
…		…
1124		1437
1125	sub exists($) {	1438	sub exists($) {
1126	my ($login) = @_;	1439	my ($login) = @_;
1127		1440
1128	$cf::PLAYER{$login}	1441	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1442	or cf::sync_job { !aio_stat path $login }
1130	}	1443	}
1131		1444
1132	sub find($) {	1445	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1446	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1447	my $login = $_[0];
1135		1448
1136	my $guard = cf::lock_acquire "user_find:$login";	1449	my $guard = cf::lock_acquire "user_find:$login";
1137		1450
1138	$cf::PLAYER{$_[0]} || do {	1451	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1452	# rename old playerfiles to new ones
		1453	#TODO: remove when no longer required
		1454	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1455	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1456	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1457	aio_unlink +(playerdir $login) . "/$login.pl";
		1458
		1459	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1460	or return;
		1461
		1462	my $pl = cf::player::load_pl $f
		1463	or return;
		1464
		1465	local $cf::PLAYER_LOADING{$login} = $pl;
		1466	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1467	$cf::PLAYER{$login} = $pl
1142	}	1468	}
1143	}	1469	}
1144	}	1470	}
1145		1471
…		…
1154	return if $pl->{deny_save};	1480	return if $pl->{deny_save};
1155		1481
1156	aio_mkdir playerdir $pl, 0770;	1482	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1483	$pl->{last_save} = $cf::RUNTIME;
1158		1484
		1485	cf::get_slot 0.01;
		1486
1159	$pl->save_pl ($path);	1487	$pl->save_pl ($path);
1160	Coro::cede;	1488	cf::cede_to_tick;
1161	}	1489	}
1162		1490
1163	sub new($) {	1491	sub new($) {
1164	my ($login) = @_;	1492	my ($login) = @_;
1165		1493
…		…
1171	$cf::PLAYER{$login} = $self;	1499	$cf::PLAYER{$login} = $self;
1172		1500
1173	$self	1501	$self
1174	}	1502	}
1175		1503
		1504	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1505
		1506	=cut
		1507
		1508	sub send_msg {
		1509	my $ns = shift->ns
		1510	or return;
		1511	$ns->send_msg (@_);
		1512	}
		1513
1176	=item $pl->quit_character	1514	=item $pl->quit_character
1177		1515
1178	Nukes the player without looking back. If logged in, the connection will	1516	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1517	be destroyed. May block for a long time.
1180		1518
1181	=cut	1519	=cut
1182		1520
1183	sub quit_character {	1521	sub quit_character {
1184	my ($pl) = @_;	1522	my ($pl) = @_;
1185		1523
		1524	my $name = $pl->ob->name;
		1525
1186	$pl->{deny_save} = 1;	1526	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1527	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1528
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1529	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1190	$pl->deactivate;	1530	$pl->deactivate;
		1531	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1532	$pl->ob->check_score;
1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1533	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1192	$pl->ns->destroy if $pl->ns;	1534	$pl->ns->destroy if $pl->ns;
1193		1535
1194	my $path = playerdir $pl;	1536	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1537	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1538	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1539	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1540	$pl->destroy;
		1541
		1542	my $prefix = qr<^~\Q$name\E/>;
		1543
		1544	# nuke player maps
		1545	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1546
1199	IO::AIO::aio_rmtree $temp;	1547	IO::AIO::aio_rmtree $temp;
		1548	}
		1549
		1550	=item $pl->kick
		1551
		1552	Kicks a player out of the game. This destroys the connection.
		1553
		1554	=cut
		1555
		1556	sub kick {
		1557	my ($pl, $kicker) = @_;
		1558
		1559	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1560	$pl->killer ("kicked");
		1561	$pl->ns->destroy;
1200	}	1562	}
1201		1563
1202	=item cf::player::list_logins	1564	=item cf::player::list_logins
1203		1565
1204	Returns am arrayref of all valid playernames in the system, can take a	1566	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1567	while and may block, so not sync_job-capable, ever.
1206		1568
1207	=cut	1569	=cut
1208		1570
1209	sub list_logins {	1571	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1572	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1573	or return [];
1212		1574
1213	my @logins;	1575	my @logins;
1214		1576
1215	for my $login (@$dirs) {	1577	for my $login (@$dirs) {
		1578	my $path = path $login;
		1579
		1580	# a .pst is a dead give-away for a valid player
		1581	# if no pst file found, open and chekc for blocked users
		1582	if (aio_stat "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1583	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1584	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1585	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1586	}
1219		1587
1220	utf8::decode $login;	1588	utf8::decode $login;
1221	push @logins, $login;	1589	push @logins, $login;
1222	}	1590	}
1223		1591
1224	\@logins	1592	\@logins
1225	}	1593	}
1226		1594
1227	=item $player->maps	1595	=item $player->maps
1228		1596
1229	Returns an arrayref of cf::path's of all maps that are private for this	1597	Returns an arrayref of map paths that are private for this
1230	player. May block.	1598	player. May block.
1231		1599
1232	=cut	1600	=cut
1233		1601
1234	sub maps($) {	1602	sub maps($) {
1235	my ($pl) = @_;	1603	my ($pl) = @_;
		1604
		1605	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1606
1237	my $files = aio_readdir playerdir $pl	1607	my $files = aio_readdir playerdir $pl
1238	or return;	1608	or return;
1239		1609
1240	my @paths;	1610	my @paths;
1241		1611
1242	for (@$files) {	1612	for (@$files) {
1243	utf8::decode $_;	1613	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1614	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1615	next unless /^$PATH_SEP/o;
1246		1616
1247	s/$PATH_SEP/\//g;	1617	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1618	}
1250		1619
1251	\@paths	1620	\@paths
1252	}	1621	}
1253		1622
		1623	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1624
		1625	Expand crossfire pod fragments into protocol xml.
		1626
		1627	=cut
		1628
		1629	use re 'eval';
		1630
		1631	my $group;
		1632	my $interior; $interior = qr{
		1633	# match a pod interior sequence sans C<< >>
		1634	(?:
		1635	\ (.*?)\ (?{ $group = $^N })
		1636	| < (??{$interior}) >
		1637	)
		1638	}x;
		1639
		1640	sub expand_cfpod {
		1641	my ($self, $pod) = @_;
		1642
		1643	my $xml;
		1644
		1645	while () {
		1646	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1647	$group = $1;
		1648
		1649	$group =~ s/&/&amp;/g;
		1650	$group =~ s/</&lt;/g;
		1651
		1652	$xml .= $group;
		1653	} elsif ($pod =~ m%\G
		1654	([BCGHITU])
		1655	<
		1656	(?:
		1657	([^<>]*) (?{ $group = $^N })
		1658	| < $interior >
		1659	)
		1660	>
		1661	%gcsx
		1662	) {
		1663	my ($code, $data) = ($1, $group);
		1664
		1665	if ($code eq "B") {
		1666	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1667	} elsif ($code eq "I") {
		1668	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1669	} elsif ($code eq "U") {
		1670	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1671	} elsif ($code eq "C") {
		1672	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1673	} elsif ($code eq "T") {
		1674	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1675	} elsif ($code eq "G") {
		1676	my ($male, $female) = split /\|/, $data;
		1677	$data = $self->gender ? $female : $male;
		1678	$xml .= expand_cfpod ($self, $data);
		1679	} elsif ($code eq "H") {
		1680	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1681	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1682	"")
		1683	[$self->{hintmode}];
		1684	} else {
		1685	$xml .= "error processing '$code($data)' directive";
		1686	}
		1687	} else {
		1688	if ($pod =~ /\G(.+)/) {
		1689	warn "parse error while expanding $pod (at $1)";
		1690	}
		1691	last;
		1692	}
		1693	}
		1694
		1695	for ($xml) {
		1696	# create single paragraphs (very hackish)
		1697	s/(?<=\S)\n(?=\w)/ /g;
		1698
		1699	# compress some whitespace
		1700	s/\s+\n/\n/g; # ws line-ends
		1701	s/\n\n+/\n/g; # double lines
		1702	s/^\n+//; # beginning lines
		1703	s/\n+$//; # ending lines
		1704	}
		1705
		1706	$xml
		1707	}
		1708
		1709	no re 'eval';
		1710
		1711	sub hintmode {
		1712	$_[0]{hintmode} = $_[1] if @_ > 1;
		1713	$_[0]{hintmode}
		1714	}
		1715
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1716	=item $player->ext_reply ($msgid, @msg)
1255		1717
1256	Sends an ext reply to the player.	1718	Sends an ext reply to the player.
1257		1719
1258	=cut	1720	=cut
1259		1721
1260	sub ext_reply($$$%) {	1722	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1723	my ($self, $id, @msg) = @_;
1262		1724
1263	$msg{msgid} = $id;	1725	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1726	}
1267		1727
1268	package cf;	1728	=item $player->ext_msg ($type, @msg)
		1729
		1730	Sends an ext event to the client.
		1731
		1732	=cut
		1733
		1734	sub ext_msg($$@) {
		1735	my ($self, $type, @msg) = @_;
		1736
		1737	$self->ns->ext_msg ($type, @msg);
		1738	}
		1739
		1740	=head3 cf::region
		1741
		1742	=over 4
		1743
		1744	=cut
		1745
		1746	package cf::region;
		1747
		1748	=item cf::region::find_by_path $path
		1749
		1750	Tries to decuce the likely region for a map knowing only its path.
		1751
		1752	=cut
		1753
		1754	sub find_by_path($) {
		1755	my ($path) = @_;
		1756
		1757	my ($match, $specificity);
		1758
		1759	for my $region (list) {
		1760	if ($region->{match} && $path =~ $region->{match}) {
		1761	($match, $specificity) = ($region, $region->specificity)
		1762	if $region->specificity > $specificity;
		1763	}
		1764	}
		1765
		1766	$match
		1767	}
1269		1768
1270	=back	1769	=back
1271
1272		1770
1273	=head3 cf::map	1771	=head3 cf::map
1274		1772
1275	=over 4	1773	=over 4
1276		1774
…		…
1279	package cf::map;	1777	package cf::map;
1280		1778
1281	use Fcntl;	1779	use Fcntl;
1282	use Coro::AIO;	1780	use Coro::AIO;
1283		1781
		1782	use overload
		1783	'""' => \&as_string,
		1784	fallback => 1;
		1785
1284	our $MAX_RESET = 3600;	1786	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1787	our $DEFAULT_RESET = 3000;
1286		1788
1287	sub generate_random_map {	1789	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1790	my ($self, $rmp) = @_;
		1791
		1792	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1289		1793
1290	# mit "rum" bekleckern, nicht	1794	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1795	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1796	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1797	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1798	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1799	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1800	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1801	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1802	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1803	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1804	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1805	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1806	(cf::region::find $rmp->{region}), $rmp->{custom}
		1807	)
		1808	}
		1809
		1810	=item cf::map->register ($regex, $prio)
		1811
		1812	Register a handler for the map path matching the given regex at the
		1813	givne priority (higher is better, built-in handlers have priority 0, the
		1814	default).
		1815
		1816	=cut
		1817
		1818	sub register {
		1819	my (undef, $regex, $prio) = @_;
		1820	my $pkg = caller;
		1821
		1822	no strict;
		1823	push @{"$pkg\::ISA"}, __PACKAGE__;
		1824
		1825	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1826	}
		1827
		1828	# also paths starting with '/'
		1829	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1830
		1831	sub thawer_merge {
		1832	my ($self, $merge) = @_;
		1833
		1834	# we have to keep some variables in memory intact
		1835	local $self->{path};
		1836	local $self->{load_path};
		1837
		1838	$self->SUPER::thawer_merge ($merge);
		1839	}
		1840
		1841	sub normalise {
		1842	my ($path, $base) = @_;
		1843
		1844	$path = "$path"; # make sure its a string
		1845
		1846	$path =~ s/\.map$//;
		1847
		1848	# map plan:
		1849	#
		1850	# /! non-realised random map exit (special hack!)
		1851	# {... are special paths that are not being touched
		1852	# ?xxx/... are special absolute paths
		1853	# ?random/... random maps
		1854	# /... normal maps
		1855	# ~user/... per-player map of a specific user
		1856
		1857	$path =~ s/$PATH_SEP/\//go;
		1858
		1859	# treat it as relative path if it starts with
		1860	# something that looks reasonable
		1861	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1862	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1863
		1864	$base =~ s{[^/]+/?$}{};
		1865	$path = "$base/$path";
		1866	}
		1867
		1868	for ($path) {
		1869	redo if s{//}{/};
		1870	redo if s{/\.?/}{/};
		1871	redo if s{/[^/]+/\.\./}{/};
		1872	}
		1873
		1874	$path
		1875	}
		1876
		1877	sub new_from_path {
		1878	my (undef, $path, $base) = @_;
		1879
		1880	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1881
		1882	$path = normalise $path, $base;
		1883
		1884	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1885	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1886	my $self = bless cf::map::new, $pkg;
		1887	$self->{path} = $path; $self->path ($path);
		1888	$self->init; # pass $1 etc.
		1889	return $self;
		1890	}
		1891	}
		1892
		1893	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1894	()
		1895	}
		1896
		1897	sub init {
		1898	my ($self) = @_;
		1899
		1900	$self
		1901	}
		1902
		1903	sub as_string {
		1904	my ($self) = @_;
		1905
		1906	"$self->{path}"
		1907	}
		1908
		1909	# the displayed name, this is a one way mapping
		1910	sub visible_name {
		1911	&as_string
		1912	}
		1913
		1914	# the original (read-only) location
		1915	sub load_path {
		1916	my ($self) = @_;
		1917
		1918	"$MAPDIR/$self->{path}.map"
		1919	}
		1920
		1921	# the temporary/swap location
		1922	sub save_path {
		1923	my ($self) = @_;
		1924
		1925	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1926	"$TMPDIR/$path.map"
		1927	}
		1928
		1929	# the unique path, undef == no special unique path
		1930	sub uniq_path {
		1931	my ($self) = @_;
		1932
		1933	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1934	"$UNIQUEDIR/$path"
1304	}	1935	}
1305		1936
1306	# and all this just because we cannot iterate over	1937	# and all this just because we cannot iterate over
1307	# all maps in C++...	1938	# all maps in C++...
1308	sub change_all_map_light {	1939	sub change_all_map_light {
…		…
1310		1941
1311	$_->change_map_light ($change)	1942	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1943	for grep $_->outdoor, values %cf::MAP;
1313	}	1944	}
1314		1945
		1946	sub decay_objects {
		1947	my ($self) = @_;
		1948
		1949	return if $self->{deny_reset};
		1950
		1951	$self->do_decay_objects;
		1952	}
		1953
		1954	sub unlink_save {
		1955	my ($self) = @_;
		1956
		1957	utf8::encode (my $save = $self->save_path);
		1958	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1959	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1960	}
		1961
1315	sub try_load_header($) {	1962	sub load_header_from($) {
1316	my ($path) = @_;	1963	my ($self, $path) = @_;
1317		1964
1318	utf8::encode $path;	1965	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1966	my $f = new_from_file cf::object::thawer $path
1320	or return;	1967	or return;
1321		1968
1322	my $map = cf::map::new	1969	$self->_load_header ($f)
1323	or return;	1970	or return;
1324		1971
1325	# for better error messages only, will be overwritten	1972	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1973	$f->resolve_delayed_derefs;
1327		1974
1328	$map->load_header ($path)	1975	$self->{load_path} = $path;
		1976
		1977	1
		1978	}
		1979
		1980	sub load_header_orig {
		1981	my ($self) = @_;
		1982
		1983	$self->load_header_from ($self->load_path)
		1984	}
		1985
		1986	sub load_header_temp {
		1987	my ($self) = @_;
		1988
		1989	$self->load_header_from ($self->save_path)
		1990	}
		1991
		1992	sub prepare_temp {
		1993	my ($self) = @_;
		1994
		1995	$self->last_access ((delete $self->{last_access})
		1996	|| $cf::RUNTIME); #d#
		1997	# safety
		1998	$self->{instantiate_time} = $cf::RUNTIME
		1999	if $self->{instantiate_time} > $cf::RUNTIME;
		2000	}
		2001
		2002	sub prepare_orig {
		2003	my ($self) = @_;
		2004
		2005	$self->{load_original} = 1;
		2006	$self->{instantiate_time} = $cf::RUNTIME;
		2007	$self->last_access ($cf::RUNTIME);
		2008	$self->instantiate;
		2009	}
		2010
		2011	sub load_header {
		2012	my ($self) = @_;
		2013
		2014	if ($self->load_header_temp) {
		2015	$self->prepare_temp;
		2016	} else {
		2017	$self->load_header_orig
1329	or return;	2018	or return;
		2019	$self->prepare_orig;
		2020	}
1330		2021
1331	$map->{load_path} = $path;	2022	$self->{deny_reset} = 1
		2023	if $self->no_reset;
1332		2024
1333	$map	2025	$self->default_region (cf::region::find_by_path $self->{path})
		2026	unless $self->default_region;
		2027
		2028	1
1334	}	2029	}
1335		2030
1336	sub find;	2031	sub find;
1337	sub find {	2032	sub find {
1338	my ($path, $origin) = @_;	2033	my ($path, $origin) = @_;
1339		2034
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	2035	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		2036
		2037	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	2038	cf::lock_wait "map_find:$path";
1346		2039
1347	$cf::MAP{$key} || do {	2040	$cf::MAP{$path} || do {
		2041	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1348	my $guard = cf::lock_acquire "map_find:$key";	2042	my $guard2 = cf::lock_acquire "map_find:$path";
1349		2043
1350	# do it the slow way	2044	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2045	or return;
1369		2046
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2047	$map->{last_save} = $cf::RUNTIME;
1382		2048
1383	Coro::cede;	2049	$map->load_header
		2050	or return;
1384		2051
1385	if ($map->should_reset) {	2052	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2053	# doing this can freeze the server in a sync job, obviously
		2054	#$cf::WAIT_FOR_TICK->wait;
		2055	undef $guard2;
		2056	undef $guard1;
1386	$map->reset;	2057	$map->reset;
1387	undef $guard;
1388	$map = find $path	2058	return find $path;
1389	or return;
1390	}	2059	}
1391		2060
1392	$cf::MAP{$key} = $map	2061	$cf::MAP{$path} = $map
1393	}	2062	}
1394	}	2063	}
		2064
		2065	sub pre_load { }
		2066	sub post_load { }
1395		2067
1396	sub load {	2068	sub load {
1397	my ($self) = @_;	2069	my ($self) = @_;
1398		2070
		2071	local $self->{deny_reset} = 1; # loading can take a long time
		2072
1399	my $path = $self->{path};	2073	my $path = $self->{path};
		2074
		2075	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2076	my $guard = cf::lock_acquire "map_data:$path";
1401		2077
		2078	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2079	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2080
1404	$self->in_memory (cf::MAP_LOADING);	2081	$self->in_memory (cf::MAP_LOADING);
1405		2082
1406	$self->alloc;	2083	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2084
		2085	$self->pre_load;
		2086	cf::cede_to_tick;
		2087
		2088	my $f = new_from_file cf::object::thawer $self->{load_path};
		2089	$f->skip_block;
		2090	$self->_load_objects ($f)
1408	or return;	2091	or return;
1409		2092
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2093	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	2094	if delete $self->{load_original};
1412		2095
1413	if (my $uniq = $path->uniq_path) {	2096	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2097	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2098	unless (aio_stat $uniq) {
		2099	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2100	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2101	$self->_load_objects ($f);
		2102	$f->resolve_delayed_derefs;
		2103	}
1418	}	2104	}
1419	}	2105	}
1420		2106
1421	Coro::cede;	2107	$f->resolve_delayed_derefs;
1422		2108
		2109	cf::cede_to_tick;
1423	# now do the right thing for maps	2110	# now do the right thing for maps
1424	$self->link_multipart_objects;	2111	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2112	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2113	unless $self->difficulty;
		2114	cf::cede_to_tick;
		2115
		2116	unless ($self->{deny_activate}) {
		2117	$self->decay_objects;
		2118	$self->fix_auto_apply;
		2119	$self->update_buttons;
		2120	cf::cede_to_tick;
		2121	$self->set_darkness_map;
		2122	cf::cede_to_tick;
1436	$self->activate;	2123	$self->activate;
1437	}	2124	}
1438		2125
1439	Coro::cede;	2126	$self->{last_save} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
1440		2128
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2129	$self->in_memory (cf::MAP_ACTIVE);
		2130	}
		2131
		2132	$self->post_load;
		2133	}
		2134
		2135	sub customise_for {
		2136	my ($self, $ob) = @_;
		2137
		2138	return find "~" . $ob->name . "/" . $self->{path}
		2139	if $self->per_player;
		2140
		2141	# return find "?party/" . $ob->name . "/" . $self->{path}
		2142	# if $self->per_party;
		2143
		2144	$self
		2145	}
		2146
		2147	# find and load all maps in the 3x3 area around a map
		2148	sub load_neighbours {
		2149	my ($map) = @_;
		2150
		2151	my @neigh; # diagonal neighbours
		2152
		2153	for (0 .. 3) {
		2154	my $neigh = $map->tile_path ($_)
		2155	or next;
		2156	$neigh = find $neigh, $map
		2157	or next;
		2158	$neigh->load;
		2159
		2160	push @neigh,
		2161	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2162	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2163	}
		2164
		2165	for (grep defined $_->[0], @neigh) {
		2166	my ($path, $origin) = @$_;
		2167	my $neigh = find $path, $origin
		2168	or next;
		2169	$neigh->load;
		2170	}
1442	}	2171	}
1443		2172
1444	sub find_sync {	2173	sub find_sync {
1445	my ($path, $origin) = @_;	2174	my ($path, $origin) = @_;
1446		2175
1447	cf::sync_job { cf::map::find $path, $origin }	2176	cf::sync_job { find $path, $origin }
1448	}	2177	}
1449		2178
1450	sub do_load_sync {	2179	sub do_load_sync {
1451	my ($map) = @_;	2180	my ($map) = @_;
1452		2181
		2182	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2183	if $Coro::current == $Coro::main;
		2184
1453	cf::sync_job { $map->load };	2185	cf::sync_job { $map->load };
		2186	}
		2187
		2188	our %MAP_PREFETCH;
		2189	our $MAP_PREFETCHER = undef;
		2190
		2191	sub find_async {
		2192	my ($path, $origin, $load) = @_;
		2193
		2194	$path = normalise $path, $origin && $origin->{path};
		2195
		2196	if (my $map = $cf::MAP{$path}) {
		2197	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2198	}
		2199
		2200	$MAP_PREFETCH{$path} |= $load;
		2201
		2202	$MAP_PREFETCHER ||= cf::async {
		2203	$Coro::current->{desc} = "map prefetcher";
		2204
		2205	while (%MAP_PREFETCH) {
		2206	while (my ($k, $v) = each %MAP_PREFETCH) {
		2207	if (my $map = find $k) {
		2208	$map->load if $v;
		2209	}
		2210
		2211	delete $MAP_PREFETCH{$k};
		2212	}
		2213	}
		2214	undef $MAP_PREFETCHER;
		2215	};
		2216	$MAP_PREFETCHER->prio (6);
		2217
		2218	()
1454	}	2219	}
1455		2220
1456	sub save {	2221	sub save {
1457	my ($self) = @_;	2222	my ($self) = @_;
1458		2223
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1460		2225
1461	$self->{last_save} = $cf::RUNTIME;	2226	$self->{last_save} = $cf::RUNTIME;
1462		2227
1463	return unless $self->dirty;	2228	return unless $self->dirty;
1464		2229
1465	my $save = $self->{path}->save_path; utf8::encode $save;	2230	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2231	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		2232
1468	$self->{load_path} = $save;	2233	$self->{load_path} = $save;
1469		2234
1470	return if $self->{deny_save};	2235	return if $self->{deny_save};
1471		2236
1472	local $self->{last_access} = $self->last_access;#d#	2237	local $self->{last_access} = $self->last_access;#d#
1473		2238
1474	cf::async {	2239	cf::async {
		2240	$Coro::current->{desc} = "map player save";
1475	$_->contr->save for $self->players;	2241	$_->contr->save for $self->players;
1476	};	2242	};
1477		2243
		2244	cf::get_slot 0.02;
		2245
1478	if ($uniq) {	2246	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2247	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	2248	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	2249	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2250	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	2251	}
1484	}	2252	}
1485		2253
1486	sub swap_out {	2254	sub swap_out {
1487	my ($self) = @_;	2255	my ($self) = @_;
1488		2256
1489	# save first because save cedes	2257	# save first because save cedes
1490	$self->save;	2258	$self->save;
1491		2259
1492	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1493		2261
1494	return if $self->players;	2262	return if $self->players;
1495	return if $self->in_memory != cf::MAP_IN_MEMORY;	2263	return if $self->in_memory != cf::MAP_ACTIVE;
1496	return if $self->{deny_save};	2264	return if $self->{deny_save};
1497		2265
		2266	$self->in_memory (cf::MAP_SWAPPED);
		2267
		2268	$self->deactivate;
		2269	$_->clear_links_to ($self) for values %cf::MAP;
1498	$self->clear;	2270	$self->clear;
1499	$self->in_memory (cf::MAP_SWAPPED);
1500	}	2271	}
1501		2272
1502	sub reset_at {	2273	sub reset_at {
1503	my ($self) = @_;	2274	my ($self) = @_;
1504		2275
1505	# TODO: safety, remove and allow resettable per-player maps	2276	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	2277	return 1e99 if $self->{deny_reset};
1508		2278
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2279	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2280	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		2281
…		…
1516	my ($self) = @_;	2286	my ($self) = @_;
1517		2287
1518	$self->reset_at <= $cf::RUNTIME	2288	$self->reset_at <= $cf::RUNTIME
1519	}	2289	}
1520		2290
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	2291	sub reset {
1543	my ($self) = @_;	2292	my ($self) = @_;
1544		2293
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2294	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2295
1547	return if $self->players;	2296	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		2297
1550	warn "resetting map ", $self->path;#d#	2298	warn "resetting map ", $self->path;
		2299
		2300	$self->in_memory (cf::MAP_SWAPPED);
		2301
		2302	# need to save uniques path
		2303	unless ($self->{deny_save}) {
		2304	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2305
		2306	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2307	if $uniq;
		2308	}
1551		2309
1552	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1553		2311
		2312	$self->deactivate;
1554	$_->clear_links_to ($self) for values %cf::MAP;	2313	$_->clear_links_to ($self) for values %cf::MAP;
		2314	$self->clear;
1555		2315
1556	$self->unlink_save;	2316	$self->unlink_save;
1557	$self->destroy;	2317	$self->destroy;
1558	}	2318	}
1559		2319
1560	my $nuke_counter = "aaaa";	2320	my $nuke_counter = "aaaa";
1561		2321
1562	sub nuke {	2322	sub nuke {
1563	my ($self) = @_;	2323	my ($self) = @_;
1564		2324
		2325	{
		2326	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2327
		2328	delete $cf::MAP{$self->path};
		2329
		2330	$self->unlink_save;
		2331
		2332	bless $self, "cf::map";
		2333	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	2334	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	2335	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	2336	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2337
		2338	$cf::MAP{$self->path} = $self;
		2339	}
		2340
1568	$self->reset; # polite request, might not happen	2341	$self->reset; # polite request, might not happen
1569	}	2342	}
1570		2343
1571	sub customise_for {	2344	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		2345
1574	if ($map->per_player) {	2346	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2347	maps. May block.
		2348
		2349	=cut
		2350
		2351	sub tmp_maps() {
1576	}	2352	[
1577		2353	map {
1578	$map	2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise $_
		2357	: ()
		2358	} @{ aio_readdir $TMPDIR or [] }
		2359	]
1579	}	2360	}
1580		2361
1581	package cf;	2362	=item $maps = cf::map::random_maps
		2363
		2364	Returns an arrayref with all map paths of currently instantiated and saved
		2365	random maps. May block.
		2366
		2367	=cut
		2368
		2369	sub random_maps() {
		2370	[
		2371	map {
		2372	utf8::decode $_;
		2373	/\.map$/
		2374	? normalise "?random/$_"
		2375	: ()
		2376	} @{ aio_readdir $RANDOMDIR or [] }
		2377	]
		2378	}
		2379
		2380	=item cf::map::unique_maps
		2381
		2382	Returns an arrayref of paths of all shared maps that have
		2383	instantiated unique items. May block.
		2384
		2385	=cut
		2386
		2387	sub unique_maps() {
		2388	[
		2389	map {
		2390	utf8::decode $_;
		2391	s/\.map$//; # TODO future compatibility hack
		2392	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2393	? ()
		2394	: normalise $_
		2395	} @{ aio_readdir $UNIQUEDIR or [] }
		2396	]
		2397	}
1582		2398
1583	=back	2399	=back
1584		2400
1585	=head3 cf::object	2401	=head3 cf::object
1586		2402
…		…
1590		2406
1591	=over 4	2407	=over 4
1592		2408
1593	=item $ob->inv_recursive	2409	=item $ob->inv_recursive
1594		2410
1595	Returns the inventory of the object _and_ their inventories, recursively.	2411	Returns the inventory of the object I<and> their inventories, recursively,
		2412	but I<not> the object itself.
1596		2413
1597	=cut	2414	=cut
1598		2415
1599	sub inv_recursive_;	2416	sub inv_recursive_;
1600	sub inv_recursive_ {	2417	sub inv_recursive_ {
…		…
1603		2420
1604	sub inv_recursive {	2421	sub inv_recursive {
1605	inv_recursive_ inv $_[0]	2422	inv_recursive_ inv $_[0]
1606	}	2423	}
1607		2424
		2425	=item $ref = $ob->ref
		2426
		2427	Creates and returns a persistent reference to an object that can be stored as a string.
		2428
		2429	=item $ob = cf::object::deref ($refstring)
		2430
		2431	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2432	even if the object actually exists. May block.
		2433
		2434	=cut
		2435
		2436	sub deref {
		2437	my ($ref) = @_;
		2438
		2439	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2440	my ($uuid, $name) = ($1, $2);
		2441	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2442	or return;
		2443	$pl->ob->uuid eq $uuid
		2444	or return;
		2445
		2446	$pl->ob
		2447	} else {
		2448	warn "$ref: cannot resolve object reference\n";
		2449	undef
		2450	}
		2451	}
		2452
1608	package cf;	2453	package cf;
1609		2454
1610	=back	2455	=back
1611		2456
1612	=head3 cf::object::player	2457	=head3 cf::object::player
…		…
1618	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2463	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1619	can be C<undef>. Does the right thing when the player is currently in a	2464	can be C<undef>. Does the right thing when the player is currently in a
1620	dialogue with the given NPC character.	2465	dialogue with the given NPC character.
1621		2466
1622	=cut	2467	=cut
		2468
		2469	our $SAY_CHANNEL = {
		2470	id => "say",
		2471	title => "Map",
		2472	reply => "say ",
		2473	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2474	};
		2475
		2476	our $CHAT_CHANNEL = {
		2477	id => "chat",
		2478	title => "Chat",
		2479	reply => "chat ",
		2480	tooltip => "Player chat and shouts, global to the server.",
		2481	};
1623		2482
1624	# rough implementation of a future "reply" method that works	2483	# rough implementation of a future "reply" method that works
1625	# with dialog boxes.	2484	# with dialog boxes.
1626	#TODO: the first argument must go, split into a $npc->reply_to ( method	2485	#TODO: the first argument must go, split into a $npc->reply_to ( method
1627	sub cf::object::player::reply($$$;$) {	2486	sub cf::object::player::reply($$$;$) {
…		…
1629		2488
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2489	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2490
1632	if ($self->{record_replies}) {	2491	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2492	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2493
1634	} else {	2494	} else {
		2495	my $pl = $self->contr;
		2496
		2497	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2498	my $dialog = $pl->{npc_dialog};
		2499	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2500
		2501	} else {
1635	$msg = $npc->name . " says: $msg" if $npc;	2502	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2503	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2504	}
1637	}	2505	}
		2506	}
		2507
		2508	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2509
		2510	=cut
		2511
		2512	sub cf::object::send_msg {
		2513	my $pl = shift->contr
		2514	or return;
		2515	$pl->send_msg (@_);
1638	}	2516	}
1639		2517
1640	=item $player_object->may ("access")	2518	=item $player_object->may ("access")
1641		2519
1642	Returns wether the given player is authorized to access resource "access"	2520	Returns wether the given player is authorized to access resource "access"
…		…
1655		2533
1656	=item $player_object->enter_link	2534	=item $player_object->enter_link
1657		2535
1658	Freezes the player and moves him/her to a special map (C<{link}>).	2536	Freezes the player and moves him/her to a special map (C<{link}>).
1659		2537
1660	The player should be reaosnably safe there for short amounts of time. You	2538	The player should be reasonably safe there for short amounts of time. You
1661	I<MUST> call C<leave_link> as soon as possible, though.	2539	I<MUST> call C<leave_link> as soon as possible, though.
1662		2540
		2541	Will never block.
		2542
1663	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1664		2544
1665	Moves the player out of the specila link map onto the given map. If the	2545	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2546	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2547	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2548	fails, to the emergency map position.
1669		2549
1670	Might block.	2550	Might block.
1671		2551
1672	=cut	2552	=cut
		2553
		2554	sub link_map {
		2555	unless ($LINK_MAP) {
		2556	$LINK_MAP = cf::map::find "{link}"
		2557	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2558	$LINK_MAP->load;
		2559	}
		2560
		2561	$LINK_MAP
		2562	}
1673		2563
1674	sub cf::object::player::enter_link {	2564	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2565	my ($self) = @_;
1676		2566
1677	$self->deactivate_recursive;	2567	$self->deactivate_recursive;
1678		2568
1679	return if $self->map == $LINK_MAP;	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2570
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1683		2573
1684	$self->enter_map ($LINK_MAP, 20, 20);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	2575	}
1686		2576
1687	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1689		2581
1690	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1691		2583
1692	unless ($map) {	2584	unless ($map) {
1693	# restore original map position	2585	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2601	if $x <=0 && $y <= 0;
1710		2602
1711	$map->load;	2603	$map->load;
		2604	$map->load_neighbours;
1712		2605
1713	return unless $self->contr->active;	2606	return unless $self->contr->active;
1714	$self->activate_recursive;	2607	$self->activate_recursive;
		2608
		2609	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	2610	$self->enter_map ($map, $x, $y);
1716	}	2611	}
1717		2612
1718	cf::player->attach (	2613	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1719	on_logout => sub {
1720	my ($pl) = @_;
1721		2614
1722	# abort map switching before logout	2615	Moves the player to the given map-path and coordinates by first freezing
1723	if ($pl->ob->{_link_pos}) {	2616	her, loading and preparing them map, calling the provided $check callback
1724	cf::sync_job {	2617	that has to return the map if sucecssful, and then unfreezes the player on
1725	$pl->ob->leave_link	2618	the new (success) or old (failed) map position. In either case, $done will
1726	};	2619	be called at the end of this process.
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731		2620
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)
1751
1752	=cut	2621	=cut
		2622
		2623	our $GOTOGEN;
1753		2624
1754	sub cf::object::player::goto {	2625	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2626	my ($self, $path, $x, $y, $check, $done) = @_;
1756		2627
1757	$path = new cf::path $path;	2628	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	2629	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2630
1760	$self->enter_link;	2631	$self->enter_link;
1761		2632
1762	(async {	2633	(async {
1763	my $map = cf::map::find $path->as_string;	2634	$Coro::current->{desc} = "player::goto $path $x $y";
		2635
		2636	# *tag paths override both path and x|y
		2637	if ($path =~ /^\*(.*)$/) {
		2638	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2639	my $ob = $obs[rand @obs];
		2640
		2641	# see if we actually can go there
		2642	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2643	$ob = $obs[rand @obs];
		2644	} else {
		2645	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2646	}
		2647	# else put us there anyways for now #d#
		2648
		2649	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2650	} else {
		2651	($path, $x, $y) = (undef, undef, undef);
		2652	}
		2653	}
		2654
		2655	my $map = eval {
		2656	my $map = defined $path ? cf::map::find $path : undef;
		2657
		2658	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	2659	$map = $map->customise_for ($self);
1765		2660	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2661	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2662	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	}
1770		2664
		2665	$map
		2666	};
		2667
		2668	if ($@) {
		2669	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	LOG llevError | logBacktrace, Carp::longmess $@;
		2671	}
		2672
		2673	if ($gen == $self->{_goto_generation}) {
		2674	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2675	$self->leave_link ($map, $x, $y);
		2676	}
		2677
		2678	$done->() if $done;
1772	})->prio (1);	2679	})->prio (1);
1773	}	2680	}
1774		2681
1775	=item $player_object->enter_exit ($exit_object)	2682	=item $player_object->enter_exit ($exit_object)
1776		2683
…		…
1778		2685
1779	sub parse_random_map_params {	2686	sub parse_random_map_params {
1780	my ($spec) = @_;	2687	my ($spec) = @_;
1781		2688
1782	my $rmp = { # defaults	2689	my $rmp = { # defaults
1783	xsize => 10,	2690	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2691	ysize => (cf::rndm 15, 40),
		2692	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2693	#layout => string,
1785	};	2694	};
1786		2695
1787	for (split /\n/, $spec) {	2696	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2697	my ($k, $v) = split /\s+/, $_, 2;
1789		2698
…		…
1801	# that depends on the exit object	2710	# that depends on the exit object
1802		2711
1803	my $rmp = parse_random_map_params $exit->msg;	2712	my $rmp = parse_random_map_params $exit->msg;
1804		2713
1805	if ($exit->map) {	2714	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2715	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2716	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2717	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2718	$rmp->{origin_y} = $exit->y;
		2719
		2720	$exit->map->touch;
1810	}	2721	}
1811		2722
1812	$rmp->{random_seed} ||= $exit->random_seed;	2723	$rmp->{random_seed} ||= $exit->random_seed;
1813		2724
1814	my $data = cf::to_json $rmp;	2725	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1815	my $md5 = Digest::MD5::md5_hex $data;	2726	my $md5 = Digest::MD5::md5_hex $data;
		2727	my $meta = "$RANDOMDIR/$md5.meta";
1816		2728
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2729	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2730	aio_write $fh, 0, (length $data), $data, 0;
		2731	undef $fh;
		2732	aio_rename "$meta~", $meta;
1819		2733
		2734	my $slaying = "?random/$md5";
		2735
		2736	if ($exit->valid) {
1820	$exit->slaying ("?random/$md5");	2737	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2738	$exit->msg (undef);
		2739	}
1822	}	2740	}
1823	}	2741	}
1824		2742
1825	sub cf::object::player::enter_exit {	2743	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2744	my ($self, $exit) = @_;
…		…
1828	return unless $self->type == cf::PLAYER;	2746	return unless $self->type == cf::PLAYER;
1829		2747
1830	$self->enter_link;	2748	$self->enter_link;
1831		2749
1832	(async {	2750	(async {
1833	$self->deactivate_recursive; # just to be sure	2751	$Coro::current->{desc} = "enter_exit";
		2752
1834	unless (eval {	2753	unless (eval {
		2754	$self->deactivate_recursive; # just to be sure
		2755
		2756	# random map handling
		2757	{
		2758	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2759
1835	prepare_random_map $exit	2760	prepare_random_map $exit
1836	if $exit->slaying eq "/!";	2761	if $exit->slaying eq "/!";
		2762	}
1837		2763
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2764	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2765	my $x = $exit->stats->hp;
		2766	my $y = $exit->stats->sp;
1840		2767
		2768	$self->goto ($map, $x, $y);
		2769
		2770	# if exit is damned, update players death & WoR home-position
		2771	$self->contr->savebed ($map, $x, $y)
		2772	if $exit->flag (cf::FLAG_DAMNED);
		2773
1841	1;	2774	1
1842	}) {	2775	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2776	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2777	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2778	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2779	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2780
1848	warn "ERROR in enter_exit: $@";	2781	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2782	$self->leave_link;
1850	}	2783	}
1851	})->prio (1);	2784	})->prio (1);
…		…
1864		2797
1865	sub cf::client::send_drawinfo {	2798	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2799	my ($self, $text, $flags) = @_;
1867		2800
1868	utf8::encode $text;	2801	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2802	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2803	}
1871		2804
		2805	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2806
		2807	Send a drawinfo or msg packet to the client, formatting the msg for the
		2808	client if neccessary. C<$type> should be a string identifying the type of
		2809	the message, with C<log> being the default. If C<$color> is negative, suppress
		2810	the message unless the client supports the msg packet.
		2811
		2812	=cut
		2813
		2814	# non-persistent channels (usually the info channel)
		2815	our %CHANNEL = (
		2816	"c/identify" => {
		2817	id => "infobox",
		2818	title => "Identify",
		2819	reply => undef,
		2820	tooltip => "Items recently identified",
		2821	},
		2822	"c/examine" => {
		2823	id => "infobox",
		2824	title => "Examine",
		2825	reply => undef,
		2826	tooltip => "Signs and other items you examined",
		2827	},
		2828	"c/book" => {
		2829	id => "infobox",
		2830	title => "Book",
		2831	reply => undef,
		2832	tooltip => "The contents of a note or book",
		2833	},
		2834	"c/lookat" => {
		2835	id => "infobox",
		2836	title => "Look",
		2837	reply => undef,
		2838	tooltip => "What you saw there",
		2839	},
		2840	"c/who" => {
		2841	id => "infobox",
		2842	title => "Players",
		2843	reply => undef,
		2844	tooltip => "Shows players who are currently online",
		2845	},
		2846	"c/body" => {
		2847	id => "infobox",
		2848	title => "Body Parts",
		2849	reply => undef,
		2850	tooltip => "Shows which body parts you posess and are available",
		2851	},
		2852	"c/uptime" => {
		2853	id => "infobox",
		2854	title => "Uptime",
		2855	reply => undef,
		2856	tooltip => "How long the server has been running since last restart",
		2857	},
		2858	"c/mapinfo" => {
		2859	id => "infobox",
		2860	title => "Map Info",
		2861	reply => undef,
		2862	tooltip => "Information related to the maps",
		2863	},
		2864	"c/party" => {
		2865	id => "party",
		2866	title => "Party",
		2867	reply => "gsay ",
		2868	tooltip => "Messages and chat related to your party",
		2869	},
		2870	);
		2871
		2872	sub cf::client::send_msg {
		2873	my ($self, $channel, $msg, $color, @extra) = @_;
		2874
		2875	$msg = $self->pl->expand_cfpod ($msg);
		2876
		2877	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2878
		2879	# check predefined channels, for the benefit of C
		2880	if ($CHANNEL{$channel}) {
		2881	$channel = $CHANNEL{$channel};
		2882
		2883	$self->ext_msg (channel_info => $channel)
		2884	if $self->can_msg;
		2885
		2886	$channel = $channel->{id};
		2887
		2888	} elsif (ref $channel) {
		2889	# send meta info to client, if not yet sent
		2890	unless (exists $self->{channel}{$channel->{id}}) {
		2891	$self->{channel}{$channel->{id}} = $channel;
		2892	$self->ext_msg (channel_info => $channel)
		2893	if $self->can_msg;
		2894	}
		2895
		2896	$channel = $channel->{id};
		2897	}
		2898
		2899	return unless @extra || length $msg;
		2900
		2901	if ($self->can_msg) {
		2902	# default colour, mask it out
		2903	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2904	if $color & cf::NDI_DEF;
		2905
		2906	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2907	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2908	} else {
		2909	if ($color >= 0) {
		2910	# replace some tags by gcfclient-compatible ones
		2911	for ($msg) {
		2912	1 while
		2913	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2914	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2915	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2916	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2917	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2918	}
		2919
		2920	$color &= cf::NDI_COLOR_MASK;
		2921
		2922	utf8::encode $msg;
		2923
		2924	if (0 && $msg =~ /\[/) {
		2925	# COMMAND/INFO
		2926	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2927	} else {
		2928	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2929	$self->send_packet ("drawinfo $color $msg")
		2930	}
		2931	}
		2932	}
		2933	}
		2934
		2935	=item $client->ext_msg ($type, @msg)
		2936
		2937	Sends an ext event to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_msg($$@) {
		2942	my ($self, $type, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2946	} elsif ($self->extcmd == 1) { # TODO: remove
		2947	push @msg, msgtype => "event_$type";
		2948	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2949	}
		2950	}
		2951
		2952	=item $client->ext_reply ($msgid, @msg)
		2953
		2954	Sends an ext reply to the client.
		2955
		2956	=cut
		2957
		2958	sub cf::client::ext_reply($$@) {
		2959	my ($self, $id, @msg) = @_;
		2960
		2961	if ($self->extcmd == 2) {
		2962	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2963	} elsif ($self->extcmd == 1) {
		2964	#TODO: version 1, remove
		2965	unshift @msg, msgtype => "reply", msgid => $id;
		2966	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2967	}
		2968	}
1872		2969
1873	=item $success = $client->query ($flags, "text", \&cb)	2970	=item $success = $client->query ($flags, "text", \&cb)
1874		2971
1875	Queues a query to the client, calling the given callback with	2972	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2973	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1877	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2974	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1878		2975
1879	Queries can fail, so check the return code. Or don't, as queries will become	2976	Queries can fail, so check the return code. Or don't, as queries will
1880	reliable at some point in the future.	2977	become reliable at some point in the future.
1881		2978
1882	=cut	2979	=cut
1883		2980
1884	sub cf::client::query {	2981	sub cf::client::query {
1885	my ($self, $flags, $text, $cb) = @_;	2982	my ($self, $flags, $text, $cb) = @_;
…		…
1893	utf8::encode $text;	2990	utf8::encode $text;
1894	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2991	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1895		2992
1896	$self->send_packet ($self->{query_queue}[0][0])	2993	$self->send_packet ($self->{query_queue}[0][0])
1897	if @{ $self->{query_queue} } == 1;	2994	if @{ $self->{query_queue} } == 1;
		2995
		2996	1
1898	}	2997	}
1899		2998
1900	cf::client->attach (	2999	cf::client->attach (
		3000	on_connect => sub {
		3001	my ($ns) = @_;
		3002
		3003	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3004	},
1901	on_reply => sub {	3005	on_reply => sub {
1902	my ($ns, $msg) = @_;	3006	my ($ns, $msg) = @_;
1903		3007
1904	# this weird shuffling is so that direct followup queries	3008	# this weird shuffling is so that direct followup queries
1905	# get handled first	3009	# get handled first
1906	my $queue = delete $ns->{query_queue}	3010	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	3011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		3012
1909	(shift @$queue)->[1]->($msg);	3013	(shift @$queue)->[1]->($msg);
		3014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		3015
1911	push @{ $ns->{query_queue} }, @$queue;	3016	push @{ $ns->{query_queue} }, @$queue;
1912		3017
1913	if (@{ $ns->{query_queue} } == @$queue) {	3018	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	3019	if (@$queue) {
…		…
1916	} else {	3021	} else {
1917	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3022	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1918	}	3023	}
1919	}	3024	}
1920	},	3025	},
		3026	on_exticmd => sub {
		3027	my ($ns, $buf) = @_;
		3028
		3029	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3030
		3031	if (ref $msg) {
		3032	my ($type, $reply, @payload) =
		3033	"ARRAY" eq ref $msg
		3034	? @$msg
		3035	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3036
		3037	my @reply;
		3038
		3039	if (my $cb = $EXTICMD{$type}) {
		3040	@reply = $cb->($ns, @payload);
		3041	}
		3042
		3043	$ns->ext_reply ($reply, @reply)
		3044	if $reply;
		3045
		3046	} else {
		3047	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3048	}
		3049
		3050	cf::override;
		3051	},
1921	);	3052	);
1922		3053
1923	=item $client->async (\&cb)	3054	=item $client->async (\&cb)
1924		3055
1925	Create a new coroutine, running the specified callback. The coroutine will	3056	Create a new coroutine, running the specified callback. The coroutine will
…		…
1966	our $safe = new Safe "safe";	3097	our $safe = new Safe "safe";
1967	our $safe_hole = new Safe::Hole;	3098	our $safe_hole = new Safe::Hole;
1968		3099
1969	$SIG{FPE} = 'IGNORE';	3100	$SIG{FPE} = 'IGNORE';
1970		3101
1971	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3102	$safe->permit_only (Opcode::opset qw(
		3103	:base_core :base_mem :base_orig :base_math
		3104	grepstart grepwhile mapstart mapwhile
		3105	sort time
		3106	));
1972		3107
1973	# here we export the classes and methods available to script code	3108	# here we export the classes and methods available to script code
1974		3109
1975	=pod	3110	=pod
1976		3111
1977	The following fucntions and emthods are available within a safe environment:	3112	The following functions and methods are available within a safe environment:
1978		3113
1979	cf::object contr pay_amount pay_player map	3114	cf::object
		3115	contr pay_amount pay_player map x y force_find force_add destroy
		3116	insert remove name archname title slaying race decrease split
		3117
1980	cf::object::player player	3118	cf::object::player
1981	cf::player peaceful	3119	player
1982	cf::map trigger	3120
		3121	cf::player
		3122	peaceful
		3123
		3124	cf::map
		3125	trigger
1983		3126
1984	=cut	3127	=cut
1985		3128
1986	for (	3129	for (
1987	["cf::object" => qw(contr pay_amount pay_player map)],	3130	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3131	insert remove inv nrof name archname title slaying race
		3132	decrease split destroy)],
1988	["cf::object::player" => qw(player)],	3133	["cf::object::player" => qw(player)],
1989	["cf::player" => qw(peaceful)],	3134	["cf::player" => qw(peaceful)],
1990	["cf::map" => qw(trigger)],	3135	["cf::map" => qw(trigger)],
1991	) {	3136	) {
1992	no strict 'refs';	3137	no strict 'refs';
…		…
2063	=back	3208	=back
2064		3209
2065	=cut	3210	=cut
2066		3211
2067	#############################################################################	3212	#############################################################################
		3213	# the server's init and main functions
2068		3214
2069	=head2 EXTENSION DATABASE SUPPORT	3215	sub load_facedata($) {
		3216	my ($path) = @_;
2070		3217
2071	Crossfire maintains a very simple database for extension use. It can	3218	# HACK to clear player env face cache, we need some signal framework
2072	currently store anything that can be serialised using Storable, which	3219	# for this (global event?)
2073	excludes objects.	3220	%ext::player_env::MUSIC_FACE_CACHE = ();
2074		3221
2075	The parameter C<$family> should best start with the name of the extension	3222	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2076	using it, it should be unique.
2077		3223
2078	=over 4	3224	warn "loading facedata from $path\n";
2079		3225
2080	=item $hashref = cf::db_get $family	3226	my $facedata;
		3227	0 < aio_load $path, $facedata
		3228	or die "$path: $!";
2081		3229
2082	Return a hashref for use by the extension C<$family>, which can be	3230	$facedata = Coro::Storable::thaw $facedata;
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085		3231
2086	=item $value = cf::db_get $family => $key	3232	$facedata->{version} == 2
		3233	or cf::cleanup "$path: version mismatch, cannot proceed.";
2087		3234
2088	Returns a single value from the database	3235	# patch in the exptable
2089		3236	$facedata->{resource}{"res/exp_table"} = {
2090	=item cf::db_put $family => $hashref	3237	type => FT_RSRC,
2091		3238	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}
2118
2119	my $pid;
2120
2121	sub db_save() {
2122	waitpid $pid, 0 if $pid;
2123	if (0 == ($pid = fork)) {
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	3239	};
		3240	cf::cede_to_tick;
2141		3241
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}	3242	{
		3243	my $faces = $facedata->{faceinfo};
2146		3244
2147	sub db_get($;$) {	3245	while (my ($face, $info) = each %$faces) {
2148	@_ >= 2	3246	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		3247
2153	sub db_put($$;$) {	3248	cf::face::set_visibility $idx, $info->{visibility};
2154	if (@_ >= 3) {	3249	cf::face::set_magicmap $idx, $info->{magicmap};
2155	$DB->{$_[0]}{$_[1]} = $_[2];	3250	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2156	} else {	3251	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		3252
2162	cf::global->attach (	3253	cf::cede_to_tick;
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	3254	}
2167	);
2168	}
2169		3255
2170	#############################################################################	3256	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	3257	next unless $info->{smooth};
2172		3258
2173	sub cfg_load {	3259	my $idx = cf::face::find $face
		3260	or next;
		3261
		3262	if (my $smooth = cf::face::find $info->{smooth}) {
		3263	cf::face::set_smooth $idx, $smooth;
		3264	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3265	} else {
		3266	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3267	}
		3268
		3269	cf::cede_to_tick;
		3270	}
		3271	}
		3272
		3273	{
		3274	my $anims = $facedata->{animinfo};
		3275
		3276	while (my ($anim, $info) = each %$anims) {
		3277	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3278	cf::cede_to_tick;
		3279	}
		3280
		3281	cf::anim::invalidate_all; # d'oh
		3282	}
		3283
		3284	{
		3285	# TODO: for gcfclient pleasure, we should give resources
		3286	# that gcfclient doesn't grok a >10000 face index.
		3287	my $res = $facedata->{resource};
		3288
		3289	while (my ($name, $info) = each %$res) {
		3290	if (defined $info->{type}) {
		3291	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3292	my $data;
		3293
		3294	if ($info->{type} & 1) {
		3295	# prepend meta info
		3296
		3297	my $meta = $enc->encode ({
		3298	name => $name,
		3299	%{ $info->{meta} || {} },
		3300	});
		3301
		3302	$data = pack "(w/a*)*", $meta, $info->{data};
		3303	} else {
		3304	$data = $info->{data};
		3305	}
		3306
		3307	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3308	cf::face::set_type $idx, $info->{type};
		3309	} else {
		3310	$RESOURCE{$name} = $info;
		3311	}
		3312
		3313	cf::cede_to_tick;
		3314	}
		3315	}
		3316
		3317	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3318
		3319	1
		3320	}
		3321
		3322	cf::global->attach (on_resource_update => sub {
		3323	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3324	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3325
		3326	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3327	my $sound = $soundconf->{compat}[$_]
		3328	or next;
		3329
		3330	my $face = cf::face::find "sound/$sound->[1]";
		3331	cf::sound::set $sound->[0] => $face;
		3332	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3333	}
		3334
		3335	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3336	my $face = cf::face::find "sound/$v";
		3337	cf::sound::set $k => $face;
		3338	}
		3339	}
		3340	});
		3341
		3342	register_exticmd fx_want => sub {
		3343	my ($ns, $want) = @_;
		3344
		3345	while (my ($k, $v) = each %$want) {
		3346	$ns->fx_want ($k, $v);
		3347	}
		3348	};
		3349
		3350	sub load_resource_file($) {
		3351	my $guard = lock_acquire "load_resource_file";
		3352
		3353	my $status = load_resource_file_ $_[0];
		3354	get_slot 0.1, 100;
		3355	cf::arch::commit_load;
		3356
		3357	$status
		3358	}
		3359
		3360	sub reload_regions {
		3361	# HACK to clear player env face cache, we need some signal framework
		3362	# for this (global event?)
		3363	%ext::player_env::MUSIC_FACE_CACHE = ();
		3364
		3365	load_resource_file "$MAPDIR/regions"
		3366	or die "unable to load regions file\n";
		3367
		3368	for (cf::region::list) {
		3369	$_->{match} = qr/$_->{match}/
		3370	if exists $_->{match};
		3371	}
		3372	}
		3373
		3374	sub reload_facedata {
		3375	load_facedata "$DATADIR/facedata"
		3376	or die "unable to load facedata\n";
		3377	}
		3378
		3379	sub reload_archetypes {
		3380	load_resource_file "$DATADIR/archetypes"
		3381	or die "unable to load archetypes\n";
		3382	}
		3383
		3384	sub reload_treasures {
		3385	load_resource_file "$DATADIR/treasures"
		3386	or die "unable to load treasurelists\n";
		3387	}
		3388
		3389	sub reload_resources {
		3390	warn "reloading resource files...\n";
		3391
		3392	reload_facedata;
		3393	reload_archetypes;
		3394	reload_regions;
		3395	reload_treasures;
		3396
		3397	warn "finished reloading resource files\n";
		3398	}
		3399
		3400	sub init {
		3401	my $guard = freeze_mainloop;
		3402
		3403	reload_resources;
		3404	}
		3405
		3406	sub reload_config {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	3407	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	3408	or return;
2176		3409
2177	local $/;	3410	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	3411	*CFG = YAML::Load <$fh>;
2179		3412
2180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3413	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2181		3414
2182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3415	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3416	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2193		3426
2194	sub main {	3427	sub main {
2195	# we must not ever block the main coroutine	3428	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	3429	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3430	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2198	async { Event::one_event };	3431	(async {
		3432	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3433	EV::loop EV::LOOP_ONESHOT;
		3434	})->prio (Coro::PRIO_MAX);
2199	};	3435	};
2200		3436
2201	cfg_load;	3437	{
2202	db_load;	3438	my $guard = freeze_mainloop;
		3439	reload_config;
		3440	db_init;
2203	load_extensions;	3441	load_extensions;
		3442
		3443	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3444	}
		3445
2204	Event::loop;	3446	EV::loop;
2205	}	3447	}
2206		3448
2207	#############################################################################	3449	#############################################################################
2208	# initialisation and cleanup	3450	# initialisation and cleanup
2209		3451
2210	# install some emergency cleanup handlers	3452	# install some emergency cleanup handlers
2211	BEGIN {	3453	BEGIN {
		3454	our %SIGWATCHER = ();
2212	for my $signal (qw(INT HUP TERM)) {	3455	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	3456	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2214	data => WF_AUTOCANCEL,
2215	signal => $signal,
2216	cb => sub {
2217	cf::cleanup "SIG$signal";	3457	cf::cleanup "SIG$signal";
2218	},
2219	);	3458	};
		3459	}
		3460	}
		3461
		3462	sub write_runtime_sync {
		3463	my $runtime = "$LOCALDIR/runtime";
		3464
		3465	# first touch the runtime file to show we are still running:
		3466	# the fsync below can take a very very long time.
		3467
		3468	IO::AIO::aio_utime $runtime, undef, undef;
		3469
		3470	my $guard = cf::lock_acquire "write_runtime";
		3471
		3472	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3473	or return;
		3474
		3475	my $value = $cf::RUNTIME + 90 + 10;
		3476	# 10 is the runtime save interval, for a monotonic clock
		3477	# 60 allows for the watchdog to kill the server.
		3478
		3479	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3480	and return;
		3481
		3482	# always fsync - this file is important
		3483	aio_fsync $fh
		3484	and return;
		3485
		3486	# touch it again to show we are up-to-date
		3487	aio_utime $fh, undef, undef;
		3488
		3489	close $fh
		3490	or return;
		3491
		3492	aio_rename "$runtime~", $runtime
		3493	and return;
		3494
		3495	warn "runtime file written.\n";
		3496
2220	}	3497	1
2221	}	3498	}
2222		3499
		3500	our $uuid_lock;
		3501	our $uuid_skip;
		3502
		3503	sub write_uuid_sync($) {
		3504	$uuid_skip ||= $_[0];
		3505
		3506	return if $uuid_lock;
		3507	local $uuid_lock = 1;
		3508
		3509	my $uuid = "$LOCALDIR/uuid";
		3510
		3511	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3512	or return;
		3513
		3514	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3515	$uuid_skip = 0;
		3516
		3517	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3518	and return;
		3519
		3520	# always fsync - this file is important
		3521	aio_fsync $fh
		3522	and return;
		3523
		3524	close $fh
		3525	or return;
		3526
		3527	aio_rename "$uuid~", $uuid
		3528	and return;
		3529
		3530	warn "uuid file written ($value).\n";
		3531
		3532	1
		3533
		3534	}
		3535
		3536	sub write_uuid($$) {
		3537	my ($skip, $sync) = @_;
		3538
		3539	$sync ? write_uuid_sync $skip
		3540	: async { write_uuid_sync $skip };
		3541	}
		3542
2223	sub emergency_save {	3543	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	3544	my $freeze_guard = cf::freeze_mainloop;
2225		3545
2226	warn "enter emergency perl save\n";	3546	warn "enter emergency perl save\n";
2227		3547
2228	cf::sync_job {	3548	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	3549	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	3550	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	3551	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	3552	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	3553	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	3554	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	3555	$pl->valid or next;
		3556	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2236	$pl->save;	3557	$pl->save;
2237	}	3558	}
2238	warn "end emergency player save\n";	3559	warn "end emergency player save\n";
2239		3560
2240	warn "begin emergency map save\n";	3561	warn "begin emergency map save\n";
…		…
2242	my $map = $cf::MAP{$path} or next;	3563	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	3564	$map->valid or next;
2244	$map->save;	3565	$map->save;
2245	}	3566	}
2246	warn "end emergency map save\n";	3567	warn "end emergency map save\n";
		3568
		3569	warn "begin emergency database checkpoint\n";
		3570	BDB::db_env_txn_checkpoint $DB_ENV;
		3571	warn "end emergency database checkpoint\n";
		3572
		3573	warn "begin write uuid\n";
		3574	write_uuid_sync 1;
		3575	warn "end write uuid\n";
2247	};	3576	};
2248		3577
2249	warn "leave emergency perl save\n";	3578	warn "leave emergency perl save\n";
2250	}	3579	}
2251		3580
		3581	sub post_cleanup {
		3582	my ($make_core) = @_;
		3583
		3584	warn Carp::longmess "post_cleanup backtrace"
		3585	if $make_core;
		3586	}
		3587
2252	sub reload() {	3588	sub do_reload_perl() {
2253	# can/must only be called in main	3589	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	3590	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	3591	warn "can only reload from main coroutine";
2256	return;	3592	return;
2257	}	3593	}
2258		3594
2259	warn "reloading...";	3595	warn "reloading...";
2260		3596
2261	my $guard = freeze_mainloop;	3597	warn "entering sync_job";
		3598
		3599	cf::sync_job {
		3600	cf::write_runtime_sync; # external watchdog should not bark
2262	cf::emergency_save;	3601	cf::emergency_save;
		3602	cf::write_runtime_sync; # external watchdog should not bark
2263		3603
2264	eval {	3604	warn "syncing database to disk";
		3605	BDB::db_env_txn_checkpoint $DB_ENV;
		3606
2265	# if anything goes wrong in here, we should simply crash as we already saved	3607	# if anything goes wrong in here, we should simply crash as we already saved
2266		3608
2267	# cancel all watchers	3609	warn "flushing outstanding aio requests";
2268	for (Event::all_watchers) {	3610	for (;;) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	3611	BDB::flush;
		3612	IO::AIO::flush;
		3613	Coro::cede_notself;
		3614	last unless IO::AIO::nreqs || BDB::nreqs;
		3615	warn "iterate...";
2270	}	3616	}
2271		3617
		3618	++$RELOAD;
		3619
2272	# cancel all extension coros	3620	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	3621	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	3622	%EXT_CORO = ();
2275		3623
2276	# unload all extensions	3624	warn "removing commands";
2277	for (@exts) {	3625	%COMMAND = ();
		3626
		3627	warn "removing ext/exti commands";
		3628	%EXTCMD = ();
		3629	%EXTICMD = ();
		3630
		3631	warn "unloading/nuking all extensions";
		3632	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	3633	warn "... unloading $pkg";
2279	unload_extension $_;	3634
		3635	if (my $cb = $pkg->can ("unload")) {
		3636	eval {
		3637	$cb->($pkg);
		3638	1
		3639	} or warn "$pkg unloaded, but with errors: $@";
2280	}	3640	}
2281		3641
		3642	warn "... nuking $pkg";
		3643	Symbol::delete_package $pkg;
		3644	}
		3645
2282	# unload all modules loaded from $LIBDIR	3646	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	3647	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3648	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		3649
2286	warn "removing <$k>";	3650	warn "... unloading $k";
2287	delete $INC{$k};	3651	delete $INC{$k};
2288		3652
2289	$k =~ s/\.pm$//;	3653	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	3654	$k =~ s/\//::/g;
2291		3655
…		…
2294	}	3658	}
2295		3659
2296	Symbol::delete_package $k;	3660	Symbol::delete_package $k;
2297	}	3661	}
2298		3662
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	3663	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	3664	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3665	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		3666
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	3667	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	3668	delete $INC{"cf.pm"};
		3669	delete $INC{"cf/pod.pm"};
2312		3670
2313	# don't, removes xs symbols, too,	3671	# don't, removes xs symbols, too,
2314	# and global variables created in xs	3672	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	3673	#Symbol::delete_package __PACKAGE__;
2316		3674
2317	# reload cf.pm	3675	warn "unload completed, starting to reload now";
		3676
2318	warn "reloading cf.pm";	3677	warn "reloading cf.pm";
2319	require cf;	3678	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3679	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		3680
2322	# load config and database again	3681	warn "loading config and database again";
2323	cf::cfg_load;	3682	cf::reload_config;
2324	cf::db_load;
2325		3683
2326	# load extensions
2327	warn "load extensions";	3684	warn "loading extensions";
2328	cf::load_extensions;	3685	cf::load_extensions;
2329		3686
2330	# reattach attachments to objects	3687	warn "reattaching attachments to objects/players";
2331	warn "reattach";	3688	_global_reattach; # objects, sockets
2332	_global_reattach;	3689	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	3690	reattach $_ for values %MAP;
		3691	warn "reattaching attachments to players";
		3692	reattach $_ for values %PLAYER;
		3693
		3694	warn "leaving sync_job";
		3695
		3696	1
		3697	} or do {
		3698	warn $@;
		3699	cf::cleanup "error while reloading, exiting.";
2334	};	3700	};
2335		3701
2336	if ($@) {	3702	warn "reloaded";
2337	warn $@;
2338	warn "error while reloading, exiting.";
2339	exit 1;
2340	}
2341
2342	warn "reloaded successfully";
2343	};	3703	};
2344		3704
2345	#############################################################################	3705	our $RELOAD_WATCHER; # used only during reload
2346		3706
2347	unless ($LINK_MAP) {	3707	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	3708	# doing reload synchronously and two reloads happen back-to-back,
		3709	# coro crashes during coro_state_free->destroy here.
2349		3710
2350	$LINK_MAP->width (41);	3711	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2351	$LINK_MAP->height (41);	3712	do_reload_perl;
2352	$LINK_MAP->alloc;	3713	undef $RELOAD_WATCHER;
2353	$LINK_MAP->path ("{link}");	3714	};
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,
2360	cb => sub {
2361	$_[0]->w->cancel;
2362
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});
2381
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	3715	}
2387
2388	register "<global>", __PACKAGE__;
2389		3716
2390	register_command "reload" => sub {	3717	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	3718	my ($who, $arg) = @_;
2392		3719
2393	if ($who->flag (FLAG_WIZ)) {	3720	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	3721	$who->message ("reloading server.");
		3722	async {
		3723	$Coro::current->{desc} = "perl_reload";
		3724	reload_perl;
		3725	};
2397	}	3726	}
2398	};	3727	};
2399		3728
2400	unshift @INC, $LIBDIR;	3729	unshift @INC, $LIBDIR;
2401		3730
2402	$TICK_WATCHER = Event->timer (	3731	my $bug_warning = 0;
2403	reentrant => 0,	3732
2404	prio => 0,	3733	our @WAIT_FOR_TICK;
2405	at => $NEXT_TICK || $TICK,	3734	our @WAIT_FOR_TICK_BEGIN;
2406	data => WF_AUTOCANCEL,	3735
2407	cb => sub {	3736	sub wait_for_tick {
		3737	return if tick_inhibit || $Coro::current == $Coro::main;
		3738
		3739	my $signal = new Coro::Signal;
		3740	push @WAIT_FOR_TICK, $signal;
		3741	$signal->wait;
		3742	}
		3743
		3744	sub wait_for_tick_begin {
		3745	return if tick_inhibit || $Coro::current == $Coro::main;
		3746
		3747	my $signal = new Coro::Signal;
		3748	push @WAIT_FOR_TICK_BEGIN, $signal;
		3749	$signal->wait;
		3750	}
		3751
		3752	sub tick {
		3753	if ($Coro::current != $Coro::main) {
		3754	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3755	unless ++$bug_warning > 10;
		3756	return;
		3757	}
		3758
2408	cf::server_tick; # one server iteration	3759	cf::server_tick; # one server iteration
2409	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;
2411		3760
2412	$WAIT_FOR_TICK->broadcast;	3761	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3762	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2414		3763	Coro::async_pool {
2415	# if we are delayed by four ticks or more, skip them all	3764	$Coro::current->{desc} = "runtime saver";
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2417
2418	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;
2420	},
2421	);
2422
2423	IO::AIO::max_poll_time $TICK * 0.2;
2424
2425	Event->io (
2426	fd => IO::AIO::poll_fileno,
2427	poll => 'r',
2428	prio => 5,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,
2435	after => 0,
2436	interval => 10,
2437	cb => sub {
2438	(Coro::unblock_sub {
2439	write_runtime	3765	write_runtime_sync
2440	or warn "ERROR: unable to write runtime file: $!";	3766	or warn "ERROR: unable to write runtime file: $!";
2441	})->();	3767	};
2442	},	3768	}
2443	);	3769
		3770	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3771	$sig->send;
		3772	}
		3773	while (my $sig = shift @WAIT_FOR_TICK) {
		3774	$sig->send;
		3775	}
		3776
		3777	$LOAD = ($NOW - $TICK_START) / $TICK;
		3778	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3779
		3780	if (0) {
		3781	if ($NEXT_TICK) {
		3782	my $jitter = $TICK_START - $NEXT_TICK;
		3783	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3784	warn "jitter $JITTER\n";#d#
		3785	}
		3786	}
		3787	}
		3788
		3789	{
		3790	# configure BDB
		3791
		3792	BDB::min_parallel 8;
		3793	BDB::max_poll_reqs $TICK * 0.1;
		3794	$AnyEvent::BDB::WATCHER->priority (1);
		3795
		3796	unless ($DB_ENV) {
		3797	$DB_ENV = BDB::db_env_create;
		3798	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3799	| BDB::LOG_AUTOREMOVE, 1);
		3800	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3801	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3802
		3803	cf::sync_job {
		3804	eval {
		3805	BDB::db_env_open
		3806	$DB_ENV,
		3807	$BDBDIR,
		3808	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3809	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3810	0666;
		3811
		3812	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3813	};
		3814
		3815	cf::cleanup "db_env_open(db): $@" if $@;
		3816	};
		3817	}
		3818
		3819	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3820	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3821	};
		3822	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3823	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3824	};
		3825	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3826	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3827	};
		3828	}
		3829
		3830	{
		3831	# configure IO::AIO
		3832
		3833	IO::AIO::min_parallel 8;
		3834	IO::AIO::max_poll_time $TICK * 0.1;
		3835	#undef $AnyEvent::AIO::WATCHER;
		3836	}
		3837
		3838	my $_log_backtrace;
		3839
		3840	sub _log_backtrace {
		3841	my ($msg, @addr) = @_;
		3842
		3843	$msg =~ s/\n//;
		3844
		3845	# limit the # of concurrent backtraces
		3846	if ($_log_backtrace < 2) {
		3847	++$_log_backtrace;
		3848	async {
		3849	$Coro::current->{desc} = "abt $msg";
		3850
		3851	my @bt = fork_call {
		3852	@addr = map { sprintf "%x", $_ } @addr;
		3853	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3854	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3855	or die "addr2line: $!";
		3856
		3857	my @funcs;
		3858	my @res = <$fh>;
		3859	chomp for @res;
		3860	while (@res) {
		3861	my ($func, $line) = splice @res, 0, 2, ();
		3862	push @funcs, "[$func] $line";
		3863	}
		3864
		3865	@funcs
		3866	};
		3867
		3868	LOG llevInfo, "[ABT] $msg\n";
		3869	LOG llevInfo, "[ABT] $_\n" for @bt;
		3870	--$_log_backtrace;
		3871	};
		3872	} else {
		3873	LOG llevInfo, "[ABT] $msg\n";
		3874	LOG llevInfo, "[ABT] [suppressed]\n";
		3875	}
		3876	}
		3877
		3878	# load additional modules
		3879	use cf::pod;
2444		3880
2445	END { cf::emergency_save }	3881	END { cf::emergency_save }
2446		3882
		3883	evthread_start IO::AIO::poll_fileno;
		3884
2447	1	3885	1
2448		3886

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