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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.468 by root, Thu Jan 8 19:23:44 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		76
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		78
35	our %COMMAND = ();	79	our %COMMAND = ();
36	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
		81
		82	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
		85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
38		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	89	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		90
42	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	109	our $NEXT_TICK;
45	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default off
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
46		118
47	our %CFG;	119	our %CFG;
48		120
49	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
51		124
52	our %MAP; # all maps	125	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	126	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	127	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	128
		129	# used to convert map paths into valid unix filenames by replacing / by ∕
		130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
56		140
57	binmode STDOUT;	141	binmode STDOUT;
58	binmode STDERR;	142	binmode STDERR;
59		143
60	# read virtual server time, if available	144	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
65	}	149	}
66		150
67	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		152
73	# a special map that is always available	153	mkdir $_
74	our $LINK_MAP;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		155
75	our $EMERGENCY_POSITION;	156	our $EMERGENCY_POSITION;
		157
		158	sub cf::map::normalise;
76		159
77	#############################################################################	160	#############################################################################
78		161
79	=head2 GLOBAL VARIABLES	162	=head2 GLOBAL VARIABLES
80		163
…		…
87	=item $cf::RUNTIME	170	=item $cf::RUNTIME
88		171
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	172	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	173	every server tick.
91		174
92	=item $cf::LIBDIR	175	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		176	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		177	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		178
94	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	180	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		181	unique-items directory, player file directory, random maps directory and
		182	database environment.
96		183
97	=item $cf::NOW	184	=item $cf::NOW
98		185
99	The time of the last (current) server tick.	186	The time of the last (current) server tick.
100		187
101	=item $cf::TICK	188	=item $cf::TICK
102		189
103	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
104		191
		192	=item $cf::LOADAVG
		193
		194	The current CPU load on the server (alpha-smoothed), as a value between 0
		195	(none) and 1 (overloaded), indicating how much time is spent on processing
		196	objects per tick. Healthy values are < 0.5.
		197
		198	=item $cf::LOAD
		199
		200	The raw value load value from the last tick.
		201
105	=item %cf::CFG	202	=item %cf::CFG
106		203
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	205	from wherever your confdir points to.
		206
		207	=item cf::wait_for_tick, cf::wait_for_tick_begin
		208
		209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		210	returns directly I<after> the tick processing (and consequently, can only wake one process
		211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		212
		213	=item @cf::INVOKE_RESULTS
		214
		215	This array contains the results of the last C<invoke ()> call. When
		216	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		217	that call.
109		218
110	=back	219	=back
111		220
112	=cut	221	=cut
113		222
114	BEGIN {	223	BEGIN {
115	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	225	my $msg = join "", @_;
117	utf8::encode $msg;
118		226
119	$msg .= "\n"	227	$msg .= "\n"
120	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
121		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
122	LOG llevError, "cfperl: $msg";	232	LOG llevError, $msg;
123	};	233	};
124	}	234	}
		235
		236	$Coro::State::DIEHOOK = sub {
		237	return unless $^S eq 0; # "eq", not "=="
		238
		239	if ($Coro::current == $Coro::main) {#d#
		240	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		241	return;#d#
		242	}#d#
		243
		244	# kill coroutine otherwise
		245	warn Carp::longmess $_[0];
		246	Coro::terminate
		247	};
		248
		249	$SIG{__DIE__} = sub { }; #d#?
125		250
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	255	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		256	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	257	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		258
133	# we bless all objects into (empty) derived classes to force a method lookup	259	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	260	# within the Safe compartment.
135	for my $pkg (qw(	261	for my $pkg (qw(
136	cf::global cf::attachable	262	cf::global cf::attachable
137	cf::object cf::object::player	263	cf::object cf::object::player
138	cf::client cf::player	264	cf::client cf::player
139	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
140	cf::map cf::party cf::region	267	cf::party cf::region
141	)) {	268	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	270	}
145		271
146	$Event::DIED = sub {	272	$EV::DIED = sub {
147	warn "error in event callback: @_";	273	warn "error in event callback: @_";
148	};	274	};
149		275
150	my %ext_pkg;	276	#############################################################################
151	my @exts;
152	my @hook;
153		277
154	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
155		279
156	=over 4	280	=over 4
157		281
158	=cut	282	=item dumpval $ref
159		283
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	284	=cut
161		285
		286	sub dumpval {
		287	eval {
		288	local $SIG{__DIE__};
		289	my $d;
		290	if (1) {
		291	$d = new Data::Dumper([$_[0]], ["*var"]);
		292	$d->Terse(1);
		293	$d->Indent(2);
		294	$d->Quotekeys(0);
		295	$d->Useqq(1);
		296	#$d->Bless(...);
		297	$d->Seen($_[1]) if @_ > 1;
		298	$d = $d->Dump();
		299	}
		300	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		301	$d
		302	} || "[unable to dump $_[0]: '$@']";
		303	}
		304
162	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
163		306
164	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
165		308
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
174		310
175	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
176		312
177	=cut	313	=cut
178		314
179	sub to_json($) {	315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		316
184	=item my $guard = cf::guard { BLOCK }	317	sub encode_json($) { $json_coder->encode ($_[0]) }
		318	sub decode_json($) { $json_coder->decode ($_[0]) }
185		319
186	Run the given callback when the guard object gets destroyed (useful for	320	=item cf::post_init { BLOCK }
187	coroutine cancellations).
188		321
189	You can call C<< ->cancel >> on the guard object to stop the block from	322	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
190	being executed.	323	but I<before> the server starts ticking again.
191		324
192	=cut	325	The cdoeblock will have a single boolean argument to indicate whether this
		326	is a reload or not.
193		327
194	sub guard(&) {	328	=cut
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		329
198	sub cf::guard::cancel {	330	sub post_init(&) {
199	${$_[0]} = sub { };	331	push @POST_INIT, shift;
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}	332	}
205		333
206	=item cf::lock_wait $string	334	=item cf::lock_wait $string
207		335
208	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
209		337
210	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
211		339
212	Wait until the given lock is available and then acquires it and returns	340	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	341	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
215	returned.	343	returned.
216		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
217	Lock names should begin with a unique identifier (for example, cf::map::find	348	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	349	uses map_find and cf::map::load uses map_load).
219		350
220	=cut	351	=item $locked = cf::lock_active $string
221		352
222	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
223		358
224	sub lock_wait($) {	359	sub lock_wait($) {
225	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	361	}
233		362
234	sub lock_acquire($) {	363	sub lock_acquire($) {
235	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
236		366
237	# wait, to be sure we are not locked	367	sub lock_active($) {
238	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
		369	}
239		370
240	$LOCK{$key} = [];	371	sub freeze_mainloop {
		372	tick_inhibit_inc;
241		373
242	cf::guard {	374	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	375	}
244	$_->ready for @{ delete $LOCK{$key} };	376
		377	=item cf::periodic $interval, $cb
		378
		379	Like EV::periodic, but randomly selects a starting point so that the actions
		380	get spread over timer.
		381
		382	=cut
		383
		384	sub periodic($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
245	}	435	}
		436	};
		437
		438	sub get_slot($;$$) {
		439	return if tick_inhibit || $Coro::current == $Coro::main;
		440
		441	my ($time, $pri, $name) = @_;
		442
		443	$time = $TICK * .6 if $time > $TICK * .6;
		444	my $sig = new Coro::Signal;
		445
		446	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		447	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		448	$SLOT_QUEUE->ready;
		449	$sig->wait;
246	}	450	}
247		451
248	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
249		453
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	454	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	455	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		456	thing you are allowed to do is call C<prio> on it.
252		457
253	=cut	458	=cut
254		459
255	sub async(&) {	460	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		461
272	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
273		463
274	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
277		468
278	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
281	fast or be very important.	472	fast or be very important.
…		…
284		475
285	sub sync_job(&) {	476	sub sync_job(&) {
286	my ($job) = @_;	477	my ($job) = @_;
287		478
288	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
289	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
291		484
292	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	486
294	my $freeze_guard = freeze_mainloop;	487	my $freeze_guard = freeze_mainloop;
295		488
296	my $busy = 1;	489	my $busy = 1;
297	my @res;	490	my @res;
298		491
299	(Coro::async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	494	@res = eval { $job->() };
301	warn $@ if $@;	495	warn $@ if $@;
302	undef $busy;	496	undef $busy;
303	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
304		498
305	while ($busy) {	499	while ($busy) {
		500	if (Coro::nready) {
306	Coro::cede_notself;	501	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
308	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
309		510
310	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
311	} else {	512	} else {
312	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
313		514
314	$job->()	515	$job->()
315	}	516	}
316	}	517	}
317		518
318	=item $coro = cf::coro { BLOCK }	519	=item $coro = cf::async_ext { BLOCK }
319		520
320	Creates and returns a new coro. This coro is automcatially being canceled	521	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	522	extension calling this is being unloaded.
322		523
323	=cut	524	=cut
324		525
325	sub coro(&) {	526	sub async_ext(&) {
326	my $cb = shift;	527	my $cb = shift;
327		528
328	my $coro = &cf::async ($cb);	529	my $coro = &Coro::async ($cb);
329		530
330	$coro->on_destroy (sub {	531	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	532	delete $EXT_CORO{$coro+0};
332	});	533	});
333	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
334		535
335	$coro	536	$coro
336	}	537	}
337		538
338	sub write_runtime {	539	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		540
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	541	Executes the given code block with the given arguments in a seperate
342	or return;	542	process, returning the results. Everything must be serialisable with
		543	Coro::Storable. May, of course, block. Note that the executed sub may
		544	never block itself or use any form of event handling.
343		545
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	546	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		547
348	aio_fsync $fh	548	sub fork_call(&@) {
349	and return;	549	my ($cb, @args) = @_;
350		550
351	close $fh	551	# we seemingly have to make a local copy of the whole thing,
352	or return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
353		554
354	aio_rename "$runtime~", $runtime	555	my @res = Coro::Util::fork_eval {
355	and return;	556	reset_signals;
		557	&$cb
		558	}, @args;
356		559
		560	wantarray ? @res : $res[-1]
		561	}
		562
		563	=item $coin = coin_from_name $name
		564
		565	=cut
		566
		567	our %coin_alias = (
		568	"silver" => "silvercoin",
		569	"silvercoin" => "silvercoin",
		570	"silvercoins" => "silvercoin",
		571	"gold" => "goldcoin",
		572	"goldcoin" => "goldcoin",
		573	"goldcoins" => "goldcoin",
		574	"platinum" => "platinacoin",
		575	"platinumcoin" => "platinacoin",
		576	"platinumcoins" => "platinacoin",
		577	"platina" => "platinacoin",
		578	"platinacoin" => "platinacoin",
		579	"platinacoins" => "platinacoin",
		580	"royalty" => "royalty",
		581	"royalties" => "royalty",
		582	);
		583
		584	sub coin_from_name($) {
		585	$coin_alias{$_[0]}
		586	? cf::arch::find $coin_alias{$_[0]}
		587	: undef
		588	}
		589
		590	=item $value = cf::db_get $family => $key
		591
		592	Returns a single value from the environment database.
		593
		594	=item cf::db_put $family => $key => $value
		595
		596	Stores the given C<$value> in the family. It can currently store binary
		597	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		598
		599	=item $db = cf::db_table "name"
		600
		601	Create and/or open a new database table. The string must not be "db" and must be unique
		602	within each server.
		603
		604	=cut
		605
		606	sub db_table($) {
		607	my ($name) = @_;
		608	my $db = BDB::db_create $DB_ENV;
		609
		610	eval {
		611	$db->set_flags (BDB::CHKSUM);
		612
		613	utf8::encode $name;
		614	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		615	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		616	cf::cleanup "db_open(db): $!" if $!;
		617	};
		618	cf::cleanup "db_open(db): $@" if $@;
		619
		620	$db
		621	}
		622
		623	our $DB;
		624
		625	sub db_init {
		626	cf::sync_job {
		627	$DB ||= db_table "db";
		628	};
		629	}
		630
		631	sub db_get($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
357	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		643	BDB::dbreq_pri 4;
		644	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		645	}
		646
		647	=item cf::cache $id => [$paths...], $processversion => $process
		648
		649	Generic caching function that returns the value of the resource $id,
		650	caching and regenerating as required.
		651
		652	This function can block.
		653
		654	=cut
		655
		656	sub cache {
		657	my ($id, $src, $processversion, $process) = @_;
		658
		659	my $meta =
		660	join "\x00",
		661	$processversion,
		662	map {
		663	aio_stat $_
		664	and Carp::croak "$_: $!";
		665
		666	($_, (stat _)[7,9])
		667	} @$src;
		668
		669	my $dbmeta = db_get cache => "$id/meta";
		670	if ($dbmeta ne $meta) {
		671	# changed, we may need to process
		672
		673	my @data;
		674	my $md5;
		675
		676	for (0 .. $#$src) {
		677	0 <= aio_load $src->[$_], $data[$_]
		678	or Carp::croak "$src->[$_]: $!";
		679	}
		680
		681	# if processing is expensive, check
		682	# checksum first
		683	if (1) {
		684	$md5 =
		685	join "\x00",
		686	$processversion,
		687	map {
		688	cf::cede_to_tick;
		689	($src->[$_], Digest::MD5::md5_hex $data[$_])
		690	} 0.. $#$src;
		691
		692
		693	my $dbmd5 = db_get cache => "$id/md5";
		694	if ($dbmd5 eq $md5) {
		695	db_put cache => "$id/meta", $meta;
		696
		697	return db_get cache => "$id/data";
		698	}
		699	}
		700
		701	my $t1 = Time::HiRes::time;
		702	my $data = $process->(\@data);
		703	my $t2 = Time::HiRes::time;
		704
		705	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		706
		707	db_put cache => "$id/data", $data;
		708	db_put cache => "$id/md5" , $md5;
		709	db_put cache => "$id/meta", $meta;
		710
		711	return $data;
		712	}
		713
		714	db_get cache => "$id/data"
		715	}
		716
		717	=item cf::datalog type => key => value, ...
		718
		719	Log a datalog packet of the given type with the given key-value pairs.
		720
		721	=cut
		722
		723	sub datalog($@) {
		724	my ($type, %kv) = @_;
		725	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	726	}
359		727
360	=back	728	=back
361		729
362	=cut	730	=cut
363		731
364	#############################################################################	732	#############################################################################
365		733
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
487		735
488	Many objects in crossfire are so-called attachable objects. That means you can	736	Many objects in deliantra are so-called attachable objects. That means you can
489	attach callbacks/event handlers (a collection of which is called an "attachment")	737	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
491		739
492	In the following description, CLASS can be any of C<global>, C<object>	740	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	741	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	742	Deliantra).
495		743
496	=over 4	744	=over 4
497		745
498	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
499		747
…		…
543	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
544		792
545	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
547		795
548	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
549	that are attached at load/instantiate time, thus the need for a name.	797	that are attached at load/instantiate time, thus the need for a name.
550		798
551	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
552		800
553	=over 4	801	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	861	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	862	our @CB_MAP = ();
615		863
616	my %attachment;	864	my %attachment;
617		865
		866	sub cf::attachable::thawer_merge {
		867	# simply override everything except _meta
		868	local $_[0]{_meta};
		869	%{$_[0]} = %{$_[1]};
		870	}
		871
618	sub _attach_cb($$$$) {	872	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	873	my ($registry, $event, $prio, $cb) = @_;
620		874
621	use sort 'stable';	875	use sort 'stable';
622		876
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
657		911
658	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		916
663	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	918	my $pkg = shift @arg;
665		919
666	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
696	}	950	}
697		951
698	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
699	} else {	953	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	955	}
702		956
703	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
704	}	958	}
705		959
…		…
707	if (ref $_[0]) {	961	if (ref $_[0]) {
708	_object_attach @_;	962	_object_attach @_;
709	} else {	963	} else {
710	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
711	}	965	}
		966	_recalc_want;
712	};	967	};
713		968
714	# all those should be optimised	969	# all those should be optimised
715	sub cf::attachable::detach {	970	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
720	reattach ($obj);	975	reattach ($obj);
721	} else {	976	} else {
722	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
723	}	978	}
		979	_recalc_want;
724	};	980	};
725		981
726	sub cf::attachable::attached {	982	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
728		984
…		…
743	";	999	";
744	die if $@;	1000	die if $@;
745	}	1001	}
746		1002
747	our $override;	1003	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1004	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1005
750	sub override {	1006	sub override {
751	$override = 1;	1007	$override = 1;
752	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
753	}	1009	}
754		1010
755	sub do_invoke {	1011	sub do_invoke {
756	my $event = shift;	1012	my $event = shift;
757	my $callbacks = shift;	1013	my $callbacks = shift;
758		1014
759	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
760		1016
761	local $override;	1017	local $override;
762		1018
763	for (@$callbacks) {	1019	for (@$callbacks) {
764	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
773	}	1029	}
774		1030
775	0	1031	0
776	}	1032	}
777		1033
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1035
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1037
782	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
783		1039
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1040	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	1041	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1043
788	=back	1044	=back
789		1045
790	=cut	1046	=cut
791		1047
792	#############################################################################	1048	#############################################################################
793	# object support	1049	# object support
		1050
		1051	sub _object_equal($$);
		1052	sub _object_equal($$) {
		1053	my ($a, $b) = @_;
		1054
		1055	return 0 unless (ref $a) eq (ref $b);
		1056
		1057	if ("HASH" eq ref $a) {
		1058	my @ka = keys %$a;
		1059	my @kb = keys %$b;
		1060
		1061	return 0 if @ka != @kb;
		1062
		1063	for (0 .. $#ka) {
		1064	return 0 unless $ka[$_] eq $kb[$_];
		1065	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1066	}
		1067
		1068	} elsif ("ARRAY" eq ref $a) {
		1069
		1070	return 0 if @$a != @$b;
		1071
		1072	for (0 .. $#$a) {
		1073	return 0 unless _object_equal $a->[$_], $b->[$_];
		1074	}
		1075
		1076	} elsif ($a ne $b) {
		1077	return 0;
		1078	}
		1079
		1080	1
		1081	}
		1082
		1083	our $SLOW_MERGES;#d#
		1084	sub _can_merge {
		1085	my ($ob1, $ob2) = @_;
		1086
		1087	++$SLOW_MERGES;#d#
		1088
		1089	# we do the slow way here
		1090	return _object_equal $ob1, $ob2
		1091	}
794		1092
795	sub reattach {	1093	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1095	my ($obj) = @_;
		1096
		1097	# no longer needed after getting rid of delete_package?
		1098	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1099
799	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
800		1101
801	@$registry = ();	1102	@$registry = ();
802		1103
…		…
817	cf::attachable->attach (	1118	cf::attachable->attach (
818	prio => -1000000,	1119	prio => -1000000,
819	on_instantiate => sub {	1120	on_instantiate => sub {
820	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
821		1122
822	$data = from_json $data;	1123	$data = decode_json $data;
823		1124
824	for (@$data) {	1125	for (@$data) {
825	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
826		1127
827	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1144	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
845		1146
846	sync_job {	1147	sync_job {
847	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
850		1152
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	1157	aio_close $fh;
856		1158
857	if (@$objs) {	1159	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1160	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	1164	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	1165	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
865	}	1167	}
866	} else {	1168	} else {
867	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
868	}	1170	}
869		1171
870	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1176	} else {
872	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
873	}	1178	}
874	} else {	1179	} else {
875	aio_unlink $filename;	1180	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
877	}	1182	}
878	}	1183	};
879	}	1184	}
880		1185
881	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
883		1188
…		…
895	or return;	1200	or return;
896		1201
897	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
899	or return;	1204	or return;
		1205
900	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
901	}	1208	}
902		1209
		1210	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
905	return ($data, $av);	1214	($data, $av)
906	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
907		1222
908	#############################################################################	1223	#############################################################################
909	# command handling &c	1224	# command handling &c
910		1225
911	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1240	}
926		1241
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1243
929	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
930		1249
931	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
932	called.	1251	called.
933		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
934	=cut	1264	=cut
935		1265
936	sub register_extcmd {	1266	sub register_extcmd {
937	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
938		1268
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1269	$EXTCMD{$name} = $cb;
943	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
944		1279
945	cf::player->attach (	1280	cf::player->attach (
946	on_command => sub {	1281	on_command => sub {
947	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
948		1283
…		…
956	cf::override;	1291	cf::override;
957	},	1292	},
958	on_extcmd => sub {	1293	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
960		1295
961	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1297
963	if (ref $msg) {	1298	if (ref $msg) {
		1299	my ($type, $reply, @payload) =
		1300	"ARRAY" eq ref $msg
		1301	? @$msg
		1302	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1303
		1304	my @reply;
		1305
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
969	} else {	1313	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1315	}
972		1316
973	cf::override;	1317	cf::override;
974	},	1318	},
975	);	1319	);
976		1320
977	sub register {	1321	# "readahead" all extensions
978	my ($base, $pkg) = @_;	1322	sub cache_extensions {
		1323	my $grp = IO::AIO::aio_group;
979		1324
980	#TODO	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
981	}	1326	for (grep /\.ext$/, @{$_[0]}) {
		1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1328	}
		1329	};
982		1330
		1331	$grp
		1332	}
		1333
983	sub load_extension {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
		1338	for my $path (<$LIBDIR/*.ext>) {
		1339	next unless -r $path;
		1340
		1341	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1342	my $base = $1;
		1343	my $pkg = $1;
		1344	$pkg =~ s/[^[:word:]]/_/g;
		1345	$pkg = "ext::$pkg";
		1346
		1347	open my $fh, "<:utf8", $path
		1348	or die "$path: $!";
		1349
		1350	my $source = do { local $/; <$fh> };
		1351
		1352	my %ext = (
		1353	path => $path,
		1354	base => $base,
		1355	pkg => $pkg,
		1356	);
		1357
		1358	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1359	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1360
		1361	$ext{source} =
		1362	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1363	. "#line 1 \"$path\"\n{\n"
		1364	. $source
		1365	. "\n};\n1";
		1366
		1367	$todo{$base} = \%ext;
		1368	}
		1369
		1370	my %done;
		1371	while (%todo) {
		1372	my $progress;
		1373
		1374	while (my ($k, $v) = each %todo) {
		1375	for (split /,\s*/, $v->{meta}{depends}) {
		1376	goto skip
		1377	unless exists $done{$_};
		1378	}
		1379
		1380	warn "... loading '$k' into '$v->{pkg}'\n";
		1381
		1382	unless (eval $v->{source}) {
		1383	my $msg = $@ ? "$v->{path}: $@\n"
		1384	: "$v->{base}: extension inactive.\n";
		1385
		1386	if (exists $v->{meta}{mandatory}) {
		1387	warn $msg;
		1388	cf::cleanup "mandatory extension failed to load, exiting.";
		1389	}
		1390
		1391	warn $msg;
		1392	}
		1393
		1394	$done{$k} = delete $todo{$k};
		1395	push @EXTS, $v->{pkg};
		1396	$progress = 1;
		1397	}
		1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
		1403	};
		1404	}
		1405
		1406	#############################################################################
		1407
		1408	=back
		1409
		1410	=head2 CORE EXTENSIONS
		1411
		1412	Functions and methods that extend core deliantra objects.
		1413
		1414	=cut
		1415
		1416	package cf::player;
		1417
		1418	use Coro::AIO;
		1419
		1420	=head3 cf::player
		1421
		1422	=over 4
		1423
		1424	=item cf::player::num_playing
		1425
		1426	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1427
		1428	=cut
		1429
		1430	sub num_playing {
		1431	scalar grep
		1432	$_->ob->map
		1433	&& !$_->hidden
		1434	&& !$_->ob->flag (cf::FLAG_WIZ),
		1435	cf::player::list
		1436	}
		1437
		1438	=item cf::player::find $login
		1439
		1440	Returns the given player object, loading it if necessary (might block).
		1441
		1442	=cut
		1443
		1444	sub playerdir($) {
		1445	"$PLAYERDIR/"
		1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1447	}
		1448
		1449	sub path($) {
		1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1451
		1452	(playerdir $login) . "/playerdata"
		1453	}
		1454
		1455	sub find_active($) {
		1456	$cf::PLAYER{$_[0]}
		1457	and $cf::PLAYER{$_[0]}->active
		1458	and $cf::PLAYER{$_[0]}
		1459	}
		1460
		1461	sub exists($) {
		1462	my ($login) = @_;
		1463
		1464	$cf::PLAYER{$login}
		1465	or !aio_stat path $login
		1466	}
		1467
		1468	sub find($) {
		1469	return $cf::PLAYER{$_[0]} || do {
		1470	my $login = $_[0];
		1471
		1472	my $guard = cf::lock_acquire "user_find:$login";
		1473
		1474	$cf::PLAYER{$_[0]} || do {
		1475	# rename old playerfiles to new ones
		1476	#TODO: remove when no longer required
		1477	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1478	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1479	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1480	aio_unlink +(playerdir $login) . "/$login.pl";
		1481
		1482	my $f = new_from_file cf::object::thawer path $login
		1483	or return;
		1484
		1485	my $pl = cf::player::load_pl $f
		1486	or return;
		1487
		1488	local $cf::PLAYER_LOADING{$login} = $pl;
		1489	$f->resolve_delayed_derefs;
		1490	$cf::PLAYER{$login} = $pl
		1491	}
		1492	}
		1493	}
		1494
		1495	sub save($) {
		1496	my ($pl) = @_;
		1497
		1498	return if $pl->{deny_save};
		1499
		1500	my $path = path $pl;
		1501	my $guard = cf::lock_acquire "user_save:$path";
		1502
		1503	return if $pl->{deny_save};
		1504
		1505	aio_mkdir playerdir $pl, 0770;
		1506	$pl->{last_save} = $cf::RUNTIME;
		1507
		1508	cf::get_slot 0.01;
		1509
		1510	$pl->save_pl ($path);
		1511	cf::cede_to_tick;
		1512	}
		1513
		1514	sub new($) {
		1515	my ($login) = @_;
		1516
		1517	my $self = create;
		1518
		1519	$self->ob->name ($login);
		1520	$self->{deny_save} = 1;
		1521
		1522	$cf::PLAYER{$login} = $self;
		1523
		1524	$self
		1525	}
		1526
		1527	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1528
		1529	=cut
		1530
		1531	sub send_msg {
		1532	my $ns = shift->ns
		1533	or return;
		1534	$ns->send_msg (@_);
		1535	}
		1536
		1537	=item $pl->quit_character
		1538
		1539	Nukes the player without looking back. If logged in, the connection will
		1540	be destroyed. May block for a long time.
		1541
		1542	=cut
		1543
		1544	sub quit_character {
		1545	my ($pl) = @_;
		1546
		1547	my $name = $pl->ob->name;
		1548
		1549	$pl->{deny_save} = 1;
		1550	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1551
		1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
		1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1557	$pl->ns->destroy if $pl->ns;
		1558
		1559	my $path = playerdir $pl;
		1560	my $temp = "$path~$cf::RUNTIME~deleting~";
		1561	aio_rename $path, $temp;
		1562	delete $cf::PLAYER{$pl->ob->name};
		1563	$pl->destroy;
		1564
		1565	my $prefix = qr<^~\Q$name\E/>;
		1566
		1567	# nuke player maps
		1568	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1569
		1570	IO::AIO::aio_rmtree $temp;
		1571	}
		1572
		1573	=item $pl->kick
		1574
		1575	Kicks a player out of the game. This destroys the connection.
		1576
		1577	=cut
		1578
		1579	sub kick {
		1580	my ($pl, $kicker) = @_;
		1581
		1582	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1583	$pl->killer ("kicked");
		1584	$pl->ns->destroy;
		1585	}
		1586
		1587	=item cf::player::list_logins
		1588
		1589	Returns am arrayref of all valid playernames in the system, can take a
		1590	while and may block, so not sync_job-capable, ever.
		1591
		1592	=cut
		1593
		1594	sub list_logins {
		1595	my $dirs = aio_readdir $PLAYERDIR
		1596	or return [];
		1597
		1598	my @logins;
		1599
		1600	for my $login (@$dirs) {
		1601	my $path = path $login;
		1602
		1603	# a .pst is a dead give-away for a valid player
		1604	# if no pst file found, open and chekc for blocked users
		1605	if (aio_stat "$path.pst") {
		1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1607	aio_read $fh, 0, 512, my $buf, 0 or next;
		1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
		1610
		1611	utf8::decode $login;
		1612	push @logins, $login;
		1613	}
		1614
		1615	\@logins
		1616	}
		1617
		1618	=item $player->maps
		1619
		1620	Returns an arrayref of map paths that are private for this
		1621	player. May block.
		1622
		1623	=cut
		1624
		1625	sub maps($) {
		1626	my ($pl) = @_;
		1627
		1628	$pl = ref $pl ? $pl->ob->name : $pl;
		1629
		1630	my $files = aio_readdir playerdir $pl
		1631	or return;
		1632
		1633	my @paths;
		1634
		1635	for (@$files) {
		1636	utf8::decode $_;
		1637	next if /\.(?:pl|pst)$/;
		1638	next unless /^$PATH_SEP/o;
		1639
		1640	push @paths, cf::map::normalise "~$pl/$_";
		1641	}
		1642
		1643	\@paths
		1644	}
		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
		1650	=item $player->ext_reply ($msgid, @msg)
		1651
		1652	Sends an ext reply to the player.
		1653
		1654	=cut
		1655
		1656	sub ext_reply($$@) {
		1657	my ($self, $id, @msg) = @_;
		1658
		1659	$self->ns->ext_reply ($id, @msg)
		1660	}
		1661
		1662	=item $player->ext_msg ($type, @msg)
		1663
		1664	Sends an ext event to the client.
		1665
		1666	=cut
		1667
		1668	sub ext_msg($$@) {
		1669	my ($self, $type, @msg) = @_;
		1670
		1671	$self->ns->ext_msg ($type, @msg);
		1672	}
		1673
		1674	=head3 cf::region
		1675
		1676	=over 4
		1677
		1678	=cut
		1679
		1680	package cf::region;
		1681
		1682	=item cf::region::find_by_path $path
		1683
		1684	Tries to decuce the likely region for a map knowing only its path.
		1685
		1686	=cut
		1687
		1688	sub find_by_path($) {
984	my ($path) = @_;	1689	my ($path) = @_;
985		1690
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1691	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1692
992	warn "loading '$path' into '$pkg'\n";	1693	for my $region (list) {
993		1694	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1695	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1696	if $region->specificity > $specificity;
996		1697	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1698	}
1026		1699
1027	# remove commands	1700	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1701	}
1133		1702
1134	=back	1703	=back
1135
1136		1704
1137	=head3 cf::map	1705	=head3 cf::map
1138		1706
1139	=over 4	1707	=over 4
1140		1708
…		…
1143	package cf::map;	1711	package cf::map;
1144		1712
1145	use Fcntl;	1713	use Fcntl;
1146	use Coro::AIO;	1714	use Coro::AIO;
1147		1715
		1716	use overload
		1717	'""' => \&as_string,
		1718	fallback => 1;
		1719
1148	our $MAX_RESET = 3600;	1720	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1721	our $DEFAULT_RESET = 3000;
1150		1722
1151	sub generate_random_map {	1723	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1724	my ($self, $rmp) = @_;
		1725
		1726	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1153		1727
1154	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1729	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
1168	}	1742	}
1169		1743
1170	# and all this just because we cannot iterate over	1744	=item cf::map->register ($regex, $prio)
1171	# all maps in C++...
1172	sub change_all_map_light {
1173	my ($change) = @_;
1174		1745
1175	$_->change_map_light ($change)	1746	Register a handler for the map path matching the given regex at the
1176	for grep $_->outdoor, values %cf::MAP;	1747	givne priority (higher is better, built-in handlers have priority 0, the
1177	}	1748	default).
1178		1749
1179	sub try_load_header($) {	1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
1180	my ($path) = @_;	1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1868	"$UNIQUEDIR/$path"
		1869	}
		1870
		1871	sub decay_objects {
		1872	my ($self) = @_;
		1873
		1874	return if $self->{deny_reset};
		1875
		1876	$self->do_decay_objects;
		1877	}
		1878
		1879	sub unlink_save {
		1880	my ($self) = @_;
		1881
		1882	utf8::encode (my $save = $self->save_path);
		1883	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1884	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1885	}
		1886
		1887	sub load_header_from($) {
		1888	my ($self, $path) = @_;
1181		1889
1182	utf8::encode $path;	1890	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1184	or return;	1892	or return;
1185		1893
1186	my $map = cf::map::new	1894	$self->_load_header ($f)
1187	or return;	1895	or return;
1188		1896
1189	$map->load_header ($path)	1897	local $MAP_LOADING{$self->{path}} = $self;
		1898	$f->resolve_delayed_derefs;
		1899
		1900	$self->{load_path} = $path;
		1901
		1902	1
		1903	}
		1904
		1905	sub load_header_orig {
		1906	my ($self) = @_;
		1907
		1908	$self->load_header_from ($self->load_path)
		1909	}
		1910
		1911	sub load_header_temp {
		1912	my ($self) = @_;
		1913
		1914	$self->load_header_from ($self->save_path)
		1915	}
		1916
		1917	sub prepare_temp {
		1918	my ($self) = @_;
		1919
		1920	$self->last_access ((delete $self->{last_access})
		1921	|| $cf::RUNTIME); #d#
		1922	# safety
		1923	$self->{instantiate_time} = $cf::RUNTIME
		1924	if $self->{instantiate_time} > $cf::RUNTIME;
		1925	}
		1926
		1927	sub prepare_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->{load_original} = 1;
		1931	$self->{instantiate_time} = $cf::RUNTIME;
		1932	$self->last_access ($cf::RUNTIME);
		1933	$self->instantiate;
		1934	}
		1935
		1936	sub load_header {
		1937	my ($self) = @_;
		1938
		1939	if ($self->load_header_temp) {
		1940	$self->prepare_temp;
		1941	} else {
		1942	$self->load_header_orig
1190	or return;	1943	or return;
		1944	$self->prepare_orig;
		1945	}
1191		1946
1192	$map->{load_path} = $path;	1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
1193		1949
1194	$map	1950	$self->default_region (cf::region::find_by_path $self->{path})
		1951	unless $self->default_region;
		1952
		1953	1
1195	}	1954	}
1196		1955
1197	sub find;	1956	sub find;
1198	sub find {	1957	sub find {
1199	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1200		1959
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1961
1206	cf::lock_wait "map_find:$key";	1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1210		1964
1211	# do it the slow way	1965	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	1966	my $map = new_from_path cf::map $path
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1967	or return;
1230		1968
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1243		1970
1244	Coro::cede;	1971	$map->load_header
		1972	or return;
1245		1973
1246	if ($map->should_reset) {	1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1975	# doing this can freeze the server in a sync job, obviously
		1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1247	$map->reset;	1979	$map->reset;
1248	undef $guard;
1249	$map = find $path	1980	return find $path;
1250	or return;
1251	}	1981	}
1252		1982
1253	$cf::MAP{$key} = $map	1983	$cf::MAP{$path} = $map
1254	}	1984	}
1255	}	1985	}
		1986
		1987	sub pre_load { }
		1988	sub post_load { }
1256		1989
1257	sub load {	1990	sub load {
1258	my ($self) = @_;	1991	my ($self) = @_;
1259		1992
		1993	local $self->{deny_reset} = 1; # loading can take a long time
		1994
1260	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1998	my $guard = cf::lock_acquire "map_data:$path";
1262		1999
		2000	return unless $self->valid;
1263	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1264		2002
1265	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1266		2004
1267	$self->alloc;	2005	$self->alloc;
1268	$self->load_objects ($self->{load_path}, 1)	2006
		2007	$self->pre_load;
		2008	cf::cede_to_tick;
		2009
		2010	my $f = new_from_file cf::object::thawer $self->{load_path};
		2011	$f->skip_block;
		2012	$self->_load_objects ($f)
1269	or return;	2013	or return;
1270		2014
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1272	if delete $self->{load_original};	2016	if delete $self->{load_original};
1273		2017
1274	if (my $uniq = $path->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	2019	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1277	$self->clear_unique_items;	2022	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1279	}	2026	}
1280	}	2027	}
1281		2028
1282	Coro::cede;	2029	$f->resolve_delayed_derefs;
1283		2030
		2031	cf::cede_to_tick;
1284	# now do the right thing for maps	2032	# now do the right thing for maps
1285	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	2035	unless $self->difficulty;
		2036	cf::cede_to_tick;
		2037
		2038	unless ($self->{deny_activate}) {
		2039	$self->decay_objects;
		2040	$self->fix_auto_apply;
		2041	$self->update_buttons;
		2042	cf::cede_to_tick;
1297	$self->activate;	2043	$self->activate;
1298	}	2044	}
1299		2045
1300	Coro::cede;	2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
1301		2048
1302	$self->in_memory (cf::MAP_IN_MEMORY);	2049	$self->in_memory (cf::MAP_ACTIVE);
		2050	}
		2051
		2052	$self->post_load;
		2053	}
		2054
		2055	sub customise_for {
		2056	my ($self, $ob) = @_;
		2057
		2058	return find "~" . $ob->name . "/" . $self->{path}
		2059	if $self->per_player;
		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
		2064	$self
		2065	}
		2066
		2067	# find and load all maps in the 3x3 area around a map
		2068	sub load_neighbours {
		2069	my ($map) = @_;
		2070
		2071	my @neigh; # diagonal neighbours
		2072
		2073	for (0 .. 3) {
		2074	my $neigh = $map->tile_path ($_)
		2075	or next;
		2076	$neigh = find $neigh, $map
		2077	or next;
		2078	$neigh->load;
		2079
		2080	push @neigh,
		2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2083	}
		2084
		2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
		2087	my $neigh = find $path, $origin
		2088	or next;
		2089	$neigh->load;
		2090	}
1303	}	2091	}
1304		2092
1305	sub find_sync {	2093	sub find_sync {
1306	my ($path, $origin) = @_;	2094	my ($path, $origin) = @_;
1307		2095
1308	cf::sync_job { cf::map::find $path, $origin }	2096	cf::sync_job { find $path, $origin }
1309	}	2097	}
1310		2098
1311	sub do_load_sync {	2099	sub do_load_sync {
1312	my ($map) = @_;	2100	my ($map) = @_;
1313		2101
		2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2103	if $Coro::current == $Coro::main;
		2104
1314	cf::sync_job { $map->load };	2105	cf::sync_job { $map->load };
		2106	}
		2107
		2108	our %MAP_PREFETCH;
		2109	our $MAP_PREFETCHER = undef;
		2110
		2111	sub find_async {
		2112	my ($path, $origin, $load) = @_;
		2113
		2114	$path = normalise $path, $origin && $origin->{path};
		2115
		2116	if (my $map = $cf::MAP{$path}) {
		2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2118	}
		2119
		2120	$MAP_PREFETCH{$path} |= $load;
		2121
		2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
		2125	while (%MAP_PREFETCH) {
		2126	while (my ($k, $v) = each %MAP_PREFETCH) {
		2127	if (my $map = find $k) {
		2128	$map->load if $v;
		2129	}
		2130
		2131	delete $MAP_PREFETCH{$k};
		2132	}
		2133	}
		2134	undef $MAP_PREFETCHER;
		2135	};
		2136	$MAP_PREFETCHER->prio (6);
		2137
		2138	()
1315	}	2139	}
1316		2140
1317	sub save {	2141	sub save {
1318	my ($self) = @_;	2142	my ($self) = @_;
1319		2143
		2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2145
1320	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1321		2147
1322	return unless $self->dirty;	2148	return unless $self->dirty;
1323		2149
1324	my $save = $self->{path}->save_path; utf8::encode $save;	2150	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2151	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		2152
1327	$self->{load_path} = $save;	2153	$self->{load_path} = $save;
1328		2154
1329	return if $self->{deny_save};	2155	return if $self->{deny_save};
1330		2156
1331	local $self->{last_access} = $self->last_access;#d#	2157	local $self->{last_access} = $self->last_access;#d#
1332		2158
		2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
		2161	$_->contr->save for $self->players;
		2162	};
		2163
		2164	cf::get_slot 0.02;
		2165
1333	if ($uniq) {	2166	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	2169	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2170	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	2171	}
1339	}	2172	}
1340		2173
1341	sub swap_out {	2174	sub swap_out {
1342	my ($self) = @_;	2175	my ($self) = @_;
1343		2176
1344	# save first because save cedes	2177	# save first because save cedes
1345	$self->save;	2178	$self->save;
1346		2179
		2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2181
1347	return if $self->players;	2182	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1349	return if $self->{deny_save};	2184	return if $self->{deny_save};
1350		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
		2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1351	$self->clear;	2190	$self->clear;
1352	$self->in_memory (cf::MAP_SWAPPED);
1353	}	2191	}
1354		2192
1355	sub reset_at {	2193	sub reset_at {
1356	my ($self) = @_;	2194	my ($self) = @_;
1357		2195
1358	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1361		2198
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		2201
…		…
1369	my ($self) = @_;	2206	my ($self) = @_;
1370		2207
1371	$self->reset_at <= $cf::RUNTIME	2208	$self->reset_at <= $cf::RUNTIME
1372	}	2209	}
1373		2210
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	2211	sub reset {
1396	my ($self) = @_;	2212	my ($self) = @_;
1397		2213
		2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2215
1398	return if $self->players;	2216	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		2217
1401	warn "resetting map ", $self->path;#d#	2218	warn "resetting map ", $self->path;
		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	# need to save uniques path
		2223	unless ($self->{deny_save}) {
		2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2225
		2226	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2227	if $uniq;
		2228	}
1402		2229
1403	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1404		2231
		2232	$self->deactivate;
1405	$_->clear_links_to ($self) for values %cf::MAP;	2233	$_->clear_links_to ($self) for values %cf::MAP;
		2234	$self->clear;
1406		2235
1407	$self->unlink_save;	2236	$self->unlink_save;
1408	$self->destroy;	2237	$self->destroy;
1409	}	2238	}
1410		2239
1411	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1412		2241
1413	sub nuke {	2242	sub nuke {
1414	my ($self) = @_;	2243	my ($self) = @_;
1415		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
		2248	delete $cf::MAP{$self->path};
		2249
		2250	$self->unlink_save;
		2251
		2252	bless $self, "cf::map";
		2253	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2257
		2258	$cf::MAP{$self->path} = $self;
		2259	}
		2260
1419	$self->reset; # polite request, might not happen	2261	$self->reset; # polite request, might not happen
1420	}	2262	}
1421		2263
1422	sub customise_for {	2264	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2265
1425	if ($map->per_player) {	2266	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2267	maps. May block.
		2268
		2269	=cut
		2270
		2271	sub tmp_maps() {
1427	}	2272	[
1428		2273	map {
1429	$map	2274	utf8::decode $_;
		2275	/\.map$/
		2276	? normalise $_
		2277	: ()
		2278	} @{ aio_readdir $TMPDIR or [] }
		2279	]
1430	}	2280	}
1431		2281
1432	sub emergency_save {	2282	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2283
1435	warn "enter emergency map save\n";	2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	random maps. May block.
1436		2286
1437	cf::sync_job {	2287	=cut
1438	warn "begin emergency map save\n";	2288
1439	$_->save for values %cf::MAP;	2289	sub random_maps() {
		2290	[
		2291	map {
		2292	utf8::decode $_;
		2293	/\.map$/
		2294	? normalise "?random/$_"
		2295	: ()
		2296	} @{ aio_readdir $RANDOMDIR or [] }
		2297	]
		2298	}
		2299
		2300	=item cf::map::unique_maps
		2301
		2302	Returns an arrayref of paths of all shared maps that have
		2303	instantiated unique items. May block.
		2304
		2305	=cut
		2306
		2307	sub unique_maps() {
		2308	[
		2309	map {
		2310	utf8::decode $_;
		2311	s/\.map$//; # TODO future compatibility hack
		2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2313	? ()
		2314	: normalise $_
		2315	} @{ aio_readdir $UNIQUEDIR or [] }
		2316	]
		2317	}
		2318
		2319	=back
		2320
		2321	=head3 cf::object
		2322
		2323	=cut
		2324
		2325	package cf::object;
		2326
		2327	=over 4
		2328
		2329	=item $ob->inv_recursive
		2330
		2331	Returns the inventory of the object I<and> their inventories, recursively,
		2332	but I<not> the object itself.
		2333
		2334	=cut
		2335
		2336	sub inv_recursive_;
		2337	sub inv_recursive_ {
		2338	map { $_, inv_recursive_ $_->inv } @_
		2339	}
		2340
		2341	sub inv_recursive {
		2342	inv_recursive_ inv $_[0]
		2343	}
		2344
		2345	=item $ref = $ob->ref
		2346
		2347	Creates and returns a persistent reference to an object that can be stored as a string.
		2348
		2349	=item $ob = cf::object::deref ($refstring)
		2350
		2351	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2352	even if the object actually exists. May block.
		2353
		2354	=cut
		2355
		2356	sub deref {
		2357	my ($ref) = @_;
		2358
		2359	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2360	my ($uuid, $name) = ($1, $2);
		2361	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2362	or return;
		2363	$pl->ob->uuid eq $uuid
		2364	or return;
		2365
		2366	$pl->ob
		2367	} else {
		2368	warn "$ref: cannot resolve object reference\n";
		2369	undef
1440	};	2370	}
1441
1442	warn "end emergency map save\n";
1443	}	2371	}
1444		2372
1445	package cf;	2373	package cf;
1446		2374
1447	=back	2375	=back
1448
1449		2376
1450	=head3 cf::object::player	2377	=head3 cf::object::player
1451		2378
1452	=over 4	2379	=over 4
1453		2380
…		…
1456	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2383	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1457	can be C<undef>. Does the right thing when the player is currently in a	2384	can be C<undef>. Does the right thing when the player is currently in a
1458	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1459		2386
1460	=cut	2387	=cut
		2388
		2389	our $SAY_CHANNEL = {
		2390	id => "say",
		2391	title => "Map",
		2392	reply => "say ",
		2393	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2394	};
		2395
		2396	our $CHAT_CHANNEL = {
		2397	id => "chat",
		2398	title => "Chat",
		2399	reply => "chat ",
		2400	tooltip => "Player chat and shouts, global to the server.",
		2401	};
1461		2402
1462	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1463	# with dialog boxes.	2404	# with dialog boxes.
1464	#TODO: the first argument must go, split into a $npc->reply_to ( method	2405	#TODO: the first argument must go, split into a $npc->reply_to ( method
1465	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1467		2408
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2410
1470	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1472	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1475	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
1476	}	2436	}
1477		2437
1478	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1479		2439
1480	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1493		2453
1494	=item $player_object->enter_link	2454	=item $player_object->enter_link
1495		2455
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2456	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2457
1498	The player should be reaosnably safe there for short amounts of time. You	2458	The player should be reasonably safe there for short amounts of time (e.g.
1499	I<MUST> call C<leave_link> as soon as possible, though.	2459	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2460	though, as the palyer cannot control the character while it is on the link
		2461	map.
		2462
		2463	Will never block.
1500		2464
1501	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1502		2466
1503	Moves the player out of the specila link map onto the given map. If the	2467	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2468	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2469	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2470	fails, to the emergency map position.
1507		2471
1508	Might block.	2472	Might block.
1509		2473
1510	=cut	2474	=cut
		2475
		2476	sub link_map {
		2477	unless ($LINK_MAP) {
		2478	$LINK_MAP = cf::map::find "{link}"
		2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2480	$LINK_MAP->load;
		2481	}
		2482
		2483	$LINK_MAP
		2484	}
1511		2485
1512	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2487	my ($self) = @_;
1514		2488
1515	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1516		2490
1517	return if $self->map == $LINK_MAP;	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2492
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1521		2495
1522	$self->enter_map ($LINK_MAP, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	2497	}
1524		2498
1525	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1527		2503
1528	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1529		2505
1530	unless ($map) {	2506	unless ($map) {
1531	# restore original map position	2507	# restore original map position
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1548		2524
1549	$map->load;	2525	$map->load;
		2526	$map->load_neighbours;
1550		2527
		2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1551	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1553	}	2534	}
1554		2535
1555	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1556	on_logout => sub {
1557	my ($pl) = @_;
1558		2537
1559	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1560	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1561	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1562	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1563	};	2542	be called at the end of this process.
1564	}
1565	},
1566	on_login => sub {
1567	my ($pl) = @_;
1568		2543
1569	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1570	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582		2546
1583	=item $player_object->goto_map ($path, $x, $y)
1584
1585	=cut	2547	=cut
1586		2548
		2549	our $GOTOGEN;
		2550
1587	sub cf::object::player::goto_map {	2551	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2552	my ($self, $path, $x, $y, $check, $done) = @_;
		2553
		2554	# do generation counting so two concurrent goto's will be executed in-order
		2555	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2556
1590	$self->enter_link;	2557	$self->enter_link;
1591		2558
1592	(cf::async {	2559	(async {
1593	$path = new cf::path $path;	2560	$Coro::current->{desc} = "player::goto $path $x $y";
1594		2561
1595	my $map = cf::map::find $path->as_string;	2562	# *tag paths override both path and x|y
		2563	if ($path =~ /^\*(.*)$/) {
		2564	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2565	my $ob = $obs[rand @obs];
		2566
		2567	# see if we actually can go there
		2568	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2569	$ob = $obs[rand @obs];
		2570	} else {
		2571	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	}
		2573	# else put us there anyways for now #d#
		2574
		2575	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2576	} else {
		2577	($path, $x, $y) = (undef, undef, undef);
		2578	}
		2579	}
		2580
		2581	my $map = eval {
		2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
1597		2586	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2587	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2588	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
1602		2590
		2591	$map
		2592	};
		2593
		2594	if ($@) {
		2595	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	LOG llevError | logBacktrace, Carp::longmess $@;
		2597	}
		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1604	})->prio (1);	2605	})->prio (1);
1605	}	2606	}
1606		2607
1607	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1608		2609
…		…
1610		2611
1611	sub parse_random_map_params {	2612	sub parse_random_map_params {
1612	my ($spec) = @_;	2613	my ($spec) = @_;
1613		2614
1614	my $rmp = { # defaults	2615	my $rmp = { # defaults
1615	xsize => 10,	2616	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2617	ysize => (cf::rndm 15, 40),
		2618	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2619	#layout => string,
1617	};	2620	};
1618		2621
1619	for (split /\n/, $spec) {	2622	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2623	my ($k, $v) = split /\s+/, $_, 2;
1621		2624
…		…
1633	# that depends on the exit object	2636	# that depends on the exit object
1634		2637
1635	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
1636		2639
1637	if ($exit->map) {	2640	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2641	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1642	}	2647	}
1643		2648
1644	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1645		2650
1646	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1647	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
		2653	my $meta = "$RANDOMDIR/$md5.meta";
1648		2654
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
		2657	undef $fh;
		2658	aio_rename "$meta~", $meta;
1651		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1652	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1654	}	2666	}
1655	}	2667	}
1656		2668
1657	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
1659		2671
1660	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1661		2673
1662	$self->enter_link;	2674	$self->enter_link;
1663		2675
1664	(cf::async {	2676	(async {
1665	$self->deactivate_recursive; # just to be sure	2677	$Coro::current->{desc} = "enter_exit";
		2678
1666	unless (eval {	2679	unless (eval {
		2680	$self->deactivate_recursive; # just to be sure
		2681
		2682	# random map handling
		2683	{
		2684	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2685
1667	prepare_random_map $exit	2686	prepare_random_map $exit
1668	if $exit->slaying eq "/!";	2687	if $exit->slaying eq "/!";
		2688	}
1669		2689
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2690	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
1672		2693
		2694	$self->goto ($map, $x, $y);
		2695
		2696	# if exit is damned, update players death & WoR home-position
		2697	$self->contr->savebed ($map, $x, $y)
		2698	if $exit->flag (cf::FLAG_DAMNED);
		2699
1673	1;	2700	1
1674	}) {	2701	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1676	. "I'll try to bring you back to the map you were before. "	2703	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2704	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2706
1680	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2708	$self->leave_link;
1682	}	2709	}
1683	})->prio (1);	2710	})->prio (1);
…		…
1696		2723
1697	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1699		2726
1700	utf8::encode $text;	2727	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2729	}
1703		2730
		2731	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2732
		2733	Send a drawinfo or msg packet to the client, formatting the msg for the
		2734	client if neccessary. C<$type> should be a string identifying the type of
		2735	the message, with C<log> being the default. If C<$color> is negative, suppress
		2736	the message unless the client supports the msg packet.
		2737
		2738	=cut
		2739
		2740	# non-persistent channels (usually the info channel)
		2741	our %CHANNEL = (
		2742	"c/identify" => {
		2743	id => "infobox",
		2744	title => "Identify",
		2745	reply => undef,
		2746	tooltip => "Items recently identified",
		2747	},
		2748	"c/examine" => {
		2749	id => "infobox",
		2750	title => "Examine",
		2751	reply => undef,
		2752	tooltip => "Signs and other items you examined",
		2753	},
		2754	"c/book" => {
		2755	id => "infobox",
		2756	title => "Book",
		2757	reply => undef,
		2758	tooltip => "The contents of a note or book",
		2759	},
		2760	"c/lookat" => {
		2761	id => "infobox",
		2762	title => "Look",
		2763	reply => undef,
		2764	tooltip => "What you saw there",
		2765	},
		2766	"c/who" => {
		2767	id => "infobox",
		2768	title => "Players",
		2769	reply => undef,
		2770	tooltip => "Shows players who are currently online",
		2771	},
		2772	"c/body" => {
		2773	id => "infobox",
		2774	title => "Body Parts",
		2775	reply => undef,
		2776	tooltip => "Shows which body parts you posess and are available",
		2777	},
		2778	"c/statistics" => {
		2779	id => "infobox",
		2780	title => "Statistics",
		2781	reply => undef,
		2782	tooltip => "Shows your primary statistics",
		2783	},
		2784	"c/skills" => {
		2785	id => "infobox",
		2786	title => "Skills",
		2787	reply => undef,
		2788	tooltip => "Shows your experience per skill and item power",
		2789	},
		2790	"c/resistances" => {
		2791	id => "infobox",
		2792	title => "Resistances",
		2793	reply => undef,
		2794	tooltip => "Shows your resistances",
		2795	},
		2796	"c/pets" => {
		2797	id => "infobox",
		2798	title => "Pets",
		2799	reply => undef,
		2800	tooltip => "Shows information abotu your pets/a specific pet",
		2801	},
		2802	"c/uptime" => {
		2803	id => "infobox",
		2804	title => "Uptime",
		2805	reply => undef,
		2806	tooltip => "How long the server has been running since last restart",
		2807	},
		2808	"c/mapinfo" => {
		2809	id => "infobox",
		2810	title => "Map Info",
		2811	reply => undef,
		2812	tooltip => "Information related to the maps",
		2813	},
		2814	"c/party" => {
		2815	id => "party",
		2816	title => "Party",
		2817	reply => "gsay ",
		2818	tooltip => "Messages and chat related to your party",
		2819	},
		2820	"c/death" => {
		2821	id => "death",
		2822	title => "Death",
		2823	reply => undef,
		2824	tooltip => "Reason for and more info about your most recent death",
		2825	},
		2826	"c/say" => $SAY_CHANNEL,
		2827	"c/chat" => $CHAT_CHANNEL,
		2828	);
		2829
		2830	sub cf::client::send_msg {
		2831	my ($self, $channel, $msg, $color, @extra) = @_;
		2832
		2833	$msg = $self->pl->expand_cfpod ($msg)
		2834	unless $color & cf::NDI_VERBATIM;
		2835
		2836	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2837
		2838	# check predefined channels, for the benefit of C
		2839	if ($CHANNEL{$channel}) {
		2840	$channel = $CHANNEL{$channel};
		2841
		2842	$self->ext_msg (channel_info => $channel);
		2843	$channel = $channel->{id};
		2844
		2845	} elsif (ref $channel) {
		2846	# send meta info to client, if not yet sent
		2847	unless (exists $self->{channel}{$channel->{id}}) {
		2848	$self->{channel}{$channel->{id}} = $channel;
		2849	$self->ext_msg (channel_info => $channel);
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	# default colour, mask it out
		2858	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2859	if $color & cf::NDI_DEF;
		2860
		2861	my $pkt = "msg "
		2862	. $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2864	);
		2865
		2866	# try lzf for large packets
		2867	$pkt = "lzf " . Compress::LZF::compress $pkt
		2868	if 1024 <= length $pkt and $self->{can_lzf};
		2869
		2870	# split very large packets
		2871	if (8192 < length $pkt and $self->{can_lzf}) {
		2872	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2873	$pkt = "frag";
		2874	}
		2875
		2876	$self->send_packet ($pkt);
		2877	}
		2878
		2879	=item $client->ext_msg ($type, @msg)
		2880
		2881	Sends an ext event to the client.
		2882
		2883	=cut
		2884
		2885	sub cf::client::ext_msg($$@) {
		2886	my ($self, $type, @msg) = @_;
		2887
		2888	if ($self->extcmd == 2) {
		2889	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2890	} elsif ($self->extcmd == 1) { # TODO: remove
		2891	push @msg, msgtype => "event_$type";
		2892	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2893	}
		2894	}
		2895
		2896	=item $client->ext_reply ($msgid, @msg)
		2897
		2898	Sends an ext reply to the client.
		2899
		2900	=cut
		2901
		2902	sub cf::client::ext_reply($$@) {
		2903	my ($self, $id, @msg) = @_;
		2904
		2905	if ($self->extcmd == 2) {
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2907	} elsif ($self->extcmd == 1) {
		2908	#TODO: version 1, remove
		2909	unshift @msg, msgtype => "reply", msgid => $id;
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2911	}
		2912	}
1704		2913
1705	=item $success = $client->query ($flags, "text", \&cb)	2914	=item $success = $client->query ($flags, "text", \&cb)
1706		2915
1707	Queues a query to the client, calling the given callback with	2916	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		2919
1711	Queries can fail, so check the return code. Or don't, as queries will become	2920	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	2921	become reliable at some point in the future.
1713		2922
1714	=cut	2923	=cut
1715		2924
1716	sub cf::client::query {	2925	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	2926	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	2934	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		2936
1728	$self->send_packet ($self->{query_queue}[0][0])	2937	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	2938	if @{ $self->{query_queue} } == 1;
		2939
		2940	1
1730	}	2941	}
1731		2942
1732	cf::client->attach (	2943	cf::client->attach (
		2944	on_connect => sub {
		2945	my ($ns) = @_;
		2946
		2947	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2948	},
1733	on_reply => sub {	2949	on_reply => sub {
1734	my ($ns, $msg) = @_;	2950	my ($ns, $msg) = @_;
1735		2951
1736	# this weird shuffling is so that direct followup queries	2952	# this weird shuffling is so that direct followup queries
1737	# get handled first	2953	# get handled first
1738	my $queue = delete $ns->{query_queue}	2954	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2955	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2956
1741	(shift @$queue)->[1]->($msg);	2957	(shift @$queue)->[1]->($msg);
		2958	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2959
1743	push @{ $ns->{query_queue} }, @$queue;	2960	push @{ $ns->{query_queue} }, @$queue;
1744		2961
1745	if (@{ $ns->{query_queue} } == @$queue) {	2962	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2963	if (@$queue) {
…		…
1748	} else {	2965	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2966	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	2967	}
1751	}	2968	}
1752	},	2969	},
		2970	on_exticmd => sub {
		2971	my ($ns, $buf) = @_;
		2972
		2973	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2974
		2975	if (ref $msg) {
		2976	my ($type, $reply, @payload) =
		2977	"ARRAY" eq ref $msg
		2978	? @$msg
		2979	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2980
		2981	my @reply;
		2982
		2983	if (my $cb = $EXTICMD{$type}) {
		2984	@reply = $cb->($ns, @payload);
		2985	}
		2986
		2987	$ns->ext_reply ($reply, @reply)
		2988	if $reply;
		2989
		2990	} else {
		2991	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2992	}
		2993
		2994	cf::override;
		2995	},
1753	);	2996	);
1754		2997
1755	=item $client->coro (\&cb)	2998	=item $client->async (\&cb)
1756		2999
1757	Create a new coroutine, running the specified callback. The coroutine will	3000	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	3001	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	3002	or loss of connection).
1760		3003
1761	=cut	3004	=cut
1762		3005
1763	sub cf::client::coro {	3006	sub cf::client::async {
1764	my ($self, $cb) = @_;	3007	my ($self, $cb) = @_;
1765		3008
1766	my $coro = &cf::async ($cb);	3009	my $coro = &Coro::async ($cb);
1767		3010
1768	$coro->on_destroy (sub {	3011	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	3012	delete $self->{_coro}{$coro+0};
1770	});	3013	});
1771		3014
…		…
1798	our $safe = new Safe "safe";	3041	our $safe = new Safe "safe";
1799	our $safe_hole = new Safe::Hole;	3042	our $safe_hole = new Safe::Hole;
1800		3043
1801	$SIG{FPE} = 'IGNORE';	3044	$SIG{FPE} = 'IGNORE';
1802		3045
1803	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3046	$safe->permit_only (Opcode::opset qw(
		3047	:base_core :base_mem :base_orig :base_math
		3048	grepstart grepwhile mapstart mapwhile
		3049	sort time
		3050	));
1804		3051
1805	# here we export the classes and methods available to script code	3052	# here we export the classes and methods available to script code
1806		3053
1807	=pod	3054	=pod
1808		3055
1809	The following fucntions and emthods are available within a safe environment:	3056	The following functions and methods are available within a safe environment:
1810		3057
1811	cf::object contr pay_amount pay_player map	3058	cf::object
		3059	contr pay_amount pay_player map x y force_find force_add destroy
		3060	insert remove name archname title slaying race decrease split
		3061	value
		3062
1812	cf::object::player player	3063	cf::object::player
1813	cf::player peaceful	3064	player
1814	cf::map trigger	3065
		3066	cf::player
		3067	peaceful
		3068
		3069	cf::map
		3070	trigger
1815		3071
1816	=cut	3072	=cut
1817		3073
1818	for (	3074	for (
1819	["cf::object" => qw(contr pay_amount pay_player map)],	3075	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3076	insert remove inv nrof name archname title slaying race
		3077	decrease split destroy change_exp value msg lore send_msg)],
1820	["cf::object::player" => qw(player)],	3078	["cf::object::player" => qw(player)],
1821	["cf::player" => qw(peaceful)],	3079	["cf::player" => qw(peaceful send_msg)],
1822	["cf::map" => qw(trigger)],	3080	["cf::map" => qw(trigger)],
1823	) {	3081	) {
1824	no strict 'refs';	3082	no strict 'refs';
1825	my ($pkg, @funs) = @$_;	3083	my ($pkg, @funs) = @$_;
1826	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3084	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1843	my ($code, %vars) = @_;	3101	my ($code, %vars) = @_;
1844		3102
1845	my $qcode = $code;	3103	my $qcode = $code;
1846	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3104	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1847	$qcode =~ s/\n/\\n/g;	3105	$qcode =~ s/\n/\\n/g;
		3106
		3107	%vars = (_dummy => 0) unless %vars;
1848		3108
1849	local $_;	3109	local $_;
1850	local @safe::cf::_safe_eval_args = values %vars;	3110	local @safe::cf::_safe_eval_args = values %vars;
1851		3111
1852	my $eval =	3112	my $eval =
…		…
1895	=back	3155	=back
1896		3156
1897	=cut	3157	=cut
1898		3158
1899	#############################################################################	3159	#############################################################################
		3160	# the server's init and main functions
1900		3161
1901	=head2 EXTENSION DATABASE SUPPORT	3162	sub load_facedata($) {
		3163	my ($path) = @_;
1902		3164
1903	Crossfire maintains a very simple database for extension use. It can	3165	# HACK to clear player env face cache, we need some signal framework
1904	currently store anything that can be serialised using Storable, which	3166	# for this (global event?)
1905	excludes objects.	3167	%ext::player_env::MUSIC_FACE_CACHE = ();
1906		3168
1907	The parameter C<$family> should best start with the name of the extension	3169	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1908	using it, it should be unique.
1909		3170
1910	=over 4	3171	warn "loading facedata from $path\n";
1911		3172
1912	=item $hashref = cf::db_get $family	3173	my $facedata;
		3174	0 < aio_load $path, $facedata
		3175	or die "$path: $!";
1913		3176
1914	Return a hashref for use by the extension C<$family>, which can be	3177	$facedata = Coro::Storable::thaw $facedata;
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917		3178
1918	=item $value = cf::db_get $family => $key	3179	$facedata->{version} == 2
		3180	or cf::cleanup "$path: version mismatch, cannot proceed.";
1919		3181
1920	Returns a single value from the database	3182	# patch in the exptable
1921		3183	$facedata->{resource}{"res/exp_table"} = {
1922	=item cf::db_put $family => $hashref	3184	type => FT_RSRC,
1923		3185	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}
1950
1951	my $pid;
1952
1953	sub db_save() {
1954	waitpid $pid, 0 if $pid;
1955	if (0 == ($pid = fork)) {
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});	3186	};
		3187	cf::cede_to_tick;
1973		3188
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}	3189	{
		3190	my $faces = $facedata->{faceinfo};
1978		3191
1979	sub db_get($;$) {	3192	while (my ($face, $info) = each %$faces) {
1980	@_ >= 2	3193	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984		3194
1985	sub db_put($$;$) {	3195	cf::face::set_visibility $idx, $info->{visibility};
1986	if (@_ >= 3) {	3196	cf::face::set_magicmap $idx, $info->{magicmap};
1987	$DB->{$_[0]}{$_[1]} = $_[2];	3197	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1988	} else {	3198	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993		3199
1994	cf::global->attach (	3200	cf::cede_to_tick;
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	3201	}
1999	);
2000	}
2001		3202
2002	#############################################################################	3203	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	3204	next unless $info->{smooth};
2004		3205
2005	sub cfg_load {	3206	my $idx = cf::face::find $face
		3207	or next;
		3208
		3209	if (my $smooth = cf::face::find $info->{smooth}) {
		3210	cf::face::set_smooth $idx, $smooth;
		3211	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3212	} else {
		3213	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3214	}
		3215
		3216	cf::cede_to_tick;
		3217	}
		3218	}
		3219
		3220	{
		3221	my $anims = $facedata->{animinfo};
		3222
		3223	while (my ($anim, $info) = each %$anims) {
		3224	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3225	cf::cede_to_tick;
		3226	}
		3227
		3228	cf::anim::invalidate_all; # d'oh
		3229	}
		3230
		3231	{
		3232	# TODO: for gcfclient pleasure, we should give resources
		3233	# that gcfclient doesn't grok a >10000 face index.
		3234	my $res = $facedata->{resource};
		3235
		3236	while (my ($name, $info) = each %$res) {
		3237	if (defined $info->{type}) {
		3238	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3239	my $data;
		3240
		3241	if ($info->{type} & 1) {
		3242	# prepend meta info
		3243
		3244	my $meta = $enc->encode ({
		3245	name => $name,
		3246	%{ $info->{meta} || {} },
		3247	});
		3248
		3249	$data = pack "(w/a*)*", $meta, $info->{data};
		3250	} else {
		3251	$data = $info->{data};
		3252	}
		3253
		3254	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3255	cf::face::set_type $idx, $info->{type};
		3256	} else {
		3257	$RESOURCE{$name} = $info;
		3258	}
		3259
		3260	cf::cede_to_tick;
		3261	}
		3262	}
		3263
		3264	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3265
		3266	1
		3267	}
		3268
		3269	cf::global->attach (on_resource_update => sub {
		3270	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3271	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3272
		3273	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3274	my $sound = $soundconf->{compat}[$_]
		3275	or next;
		3276
		3277	my $face = cf::face::find "sound/$sound->[1]";
		3278	cf::sound::set $sound->[0] => $face;
		3279	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3280	}
		3281
		3282	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3283	my $face = cf::face::find "sound/$v";
		3284	cf::sound::set $k => $face;
		3285	}
		3286	}
		3287	});
		3288
		3289	register_exticmd fx_want => sub {
		3290	my ($ns, $want) = @_;
		3291
		3292	while (my ($k, $v) = each %$want) {
		3293	$ns->fx_want ($k, $v);
		3294	}
		3295	};
		3296
		3297	sub load_resource_file($) {
		3298	my $guard = lock_acquire "load_resource_file";
		3299
		3300	my $status = load_resource_file_ $_[0];
		3301	get_slot 0.1, 100;
		3302	cf::arch::commit_load;
		3303
		3304	$status
		3305	}
		3306
		3307	sub reload_regions {
		3308	# HACK to clear player env face cache, we need some signal framework
		3309	# for this (global event?)
		3310	%ext::player_env::MUSIC_FACE_CACHE = ();
		3311
		3312	load_resource_file "$MAPDIR/regions"
		3313	or die "unable to load regions file\n";
		3314
		3315	for (cf::region::list) {
		3316	$_->{match} = qr/$_->{match}/
		3317	if exists $_->{match};
		3318	}
		3319	}
		3320
		3321	sub reload_facedata {
		3322	load_facedata "$DATADIR/facedata"
		3323	or die "unable to load facedata\n";
		3324	}
		3325
		3326	sub reload_archetypes {
		3327	load_resource_file "$DATADIR/archetypes"
		3328	or die "unable to load archetypes\n";
		3329	}
		3330
		3331	sub reload_treasures {
		3332	load_resource_file "$DATADIR/treasures"
		3333	or die "unable to load treasurelists\n";
		3334	}
		3335
		3336	sub reload_resources {
		3337	warn "reloading resource files...\n";
		3338
		3339	reload_facedata;
		3340	reload_archetypes;
		3341	reload_regions;
		3342	reload_treasures;
		3343
		3344	warn "finished reloading resource files\n";
		3345	}
		3346
		3347	sub reload_config {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	3348	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	3349	or return;
2008		3350
2009	local $/;	3351	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	3352	*CFG = YAML::Load <$fh>;
2011		3353
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3354	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3355
		3356	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3357	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2013		3358
2014	if (exists $CFG{mlockall}) {	3359	if (exists $CFG{mlockall}) {
2015	eval {	3360	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	3361	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	3362	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	3363	};
2019	warn $@ if $@;	3364	warn $@ if $@;
2020	}	3365	}
2021	}	3366	}
2022		3367
		3368	sub pidfile() {
		3369	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3370	or die "$PIDFILE: $!";
		3371	flock $fh, &Fcntl::LOCK_EX
		3372	or die "$PIDFILE: flock: $!";
		3373	$fh
		3374	}
		3375
		3376	# make sure only one server instance is running at any one time
		3377	sub atomic {
		3378	my $fh = pidfile;
		3379
		3380	my $pid = <$fh>;
		3381	kill 9, $pid if $pid > 0;
		3382
		3383	seek $fh, 0, 0;
		3384	print $fh $$;
		3385	}
		3386
2023	sub main {	3387	sub main {
		3388	cf::init_globals; # initialise logging
		3389
		3390	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3391	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3392	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3393	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3394
		3395	cf::init_experience;
		3396	cf::init_anim;
		3397	cf::init_attackmess;
		3398	cf::init_dynamic;
		3399
		3400	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3401
2024	# we must not ever block the main coroutine	3402	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	3403	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3404	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	3405	(async {
2028	Event::one_event;	3406	$Coro::current->{desc} = "IDLE BUG HANDLER";
2029	})->();	3407	EV::loop EV::LOOP_ONESHOT;
		3408	})->prio (Coro::PRIO_MAX);
2030	};	3409	};
2031		3410
2032	cfg_load;	3411	evthread_start IO::AIO::poll_fileno;
2033	db_load;	3412
		3413	cf::sync_job {
		3414	reload_resources;
		3415	reload_config;
		3416	db_init;
		3417
		3418	cf::load_settings;
		3419	cf::load_materials;
		3420	cf::init_uuid;
		3421	cf::init_signals;
		3422	cf::init_commands;
		3423	cf::init_skills;
		3424
		3425	cf::init_beforeplay;
		3426
		3427	atomic;
		3428
2034	load_extensions;	3429	load_extensions;
		3430
		3431	utime time, time, $RUNTIMEFILE;
		3432
		3433	# no (long-running) fork's whatsoever before this point(!)
		3434	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3435
		3436	(pop @POST_INIT)->(0) while @POST_INIT;
		3437	};
		3438
2035	Event::loop;	3439	EV::loop;
2036	}	3440	}
2037		3441
2038	#############################################################################	3442	#############################################################################
2039	# initialisation	3443	# initialisation and cleanup
2040		3444
		3445	# install some emergency cleanup handlers
		3446	BEGIN {
		3447	our %SIGWATCHER = ();
		3448	for my $signal (qw(INT HUP TERM)) {
		3449	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3450	cf::cleanup "SIG$signal";
		3451	};
		3452	}
		3453	}
		3454
		3455	sub write_runtime_sync {
		3456	# first touch the runtime file to show we are still running:
		3457	# the fsync below can take a very very long time.
		3458
		3459	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3460
		3461	my $guard = cf::lock_acquire "write_runtime";
		3462
		3463	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3464	or return;
		3465
		3466	my $value = $cf::RUNTIME + 90 + 10;
		3467	# 10 is the runtime save interval, for a monotonic clock
		3468	# 60 allows for the watchdog to kill the server.
		3469
		3470	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3471	and return;
		3472
		3473	# always fsync - this file is important
		3474	aio_fsync $fh
		3475	and return;
		3476
		3477	# touch it again to show we are up-to-date
		3478	aio_utime $fh, undef, undef;
		3479
		3480	close $fh
		3481	or return;
		3482
		3483	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3484	and return;
		3485
		3486	warn "runtime file written.\n";
		3487
		3488	1
		3489	}
		3490
		3491	our $uuid_lock;
		3492	our $uuid_skip;
		3493
		3494	sub write_uuid_sync($) {
		3495	$uuid_skip ||= $_[0];
		3496
		3497	return if $uuid_lock;
		3498	local $uuid_lock = 1;
		3499
		3500	my $uuid = "$LOCALDIR/uuid";
		3501
		3502	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3503	or return;
		3504
		3505	my $value = uuid_seq uuid_cur;
		3506
		3507	unless ($value) {
		3508	warn "cowardly refusing to write zero uuid value!\n";
		3509	return;
		3510	}
		3511
		3512	my $value = uuid_str $value + $uuid_skip;
		3513	$uuid_skip = 0;
		3514
		3515	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3516	and return;
		3517
		3518	# always fsync - this file is important
		3519	aio_fsync $fh
		3520	and return;
		3521
		3522	close $fh
		3523	or return;
		3524
		3525	aio_rename "$uuid~", $uuid
		3526	and return;
		3527
		3528	warn "uuid file written ($value).\n";
		3529
		3530	1
		3531
		3532	}
		3533
		3534	sub write_uuid($$) {
		3535	my ($skip, $sync) = @_;
		3536
		3537	$sync ? write_uuid_sync $skip
		3538	: async { write_uuid_sync $skip };
		3539	}
		3540
		3541	sub emergency_save() {
		3542	my $freeze_guard = cf::freeze_mainloop;
		3543
		3544	warn "emergency_perl_save: enter\n";
		3545
		3546	cf::sync_job {
		3547	# this is a trade-off: we want to be very quick here, so
		3548	# save all maps without fsync, and later call a global sync
		3549	# (which in turn might be very very slow)
		3550	local $USE_FSYNC = 0;
		3551
		3552	# use a peculiar iteration method to avoid tripping on perl
		3553	# refcount bugs in for. also avoids problems with players
		3554	# and maps saved/destroyed asynchronously.
		3555	warn "emergency_perl_save: begin player save\n";
		3556	for my $login (keys %cf::PLAYER) {
		3557	my $pl = $cf::PLAYER{$login} or next;
		3558	$pl->valid or next;
		3559	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3560	$pl->save;
		3561	}
		3562	warn "emergency_perl_save: end player save\n";
		3563
		3564	warn "emergency_perl_save: begin map save\n";
		3565	for my $path (keys %cf::MAP) {
		3566	my $map = $cf::MAP{$path} or next;
		3567	$map->valid or next;
		3568	$map->save;
		3569	}
		3570	warn "emergency_perl_save: end map save\n";
		3571
		3572	warn "emergency_perl_save: begin database checkpoint\n";
		3573	BDB::db_env_txn_checkpoint $DB_ENV;
		3574	warn "emergency_perl_save: end database checkpoint\n";
		3575
		3576	warn "emergency_perl_save: begin write uuid\n";
		3577	write_uuid_sync 1;
		3578	warn "emergency_perl_save: end write uuid\n";
		3579	};
		3580
		3581	warn "emergency_perl_save: starting sync()\n";
		3582	IO::AIO::aio_sync sub {
		3583	warn "emergency_perl_save: finished sync()\n";
		3584	};
		3585
		3586	warn "emergency_perl_save: leave\n";
		3587	}
		3588
		3589	sub post_cleanup {
		3590	my ($make_core) = @_;
		3591
		3592	warn Carp::longmess "post_cleanup backtrace"
		3593	if $make_core;
		3594
		3595	my $fh = pidfile;
		3596	unlink $PIDFILE if <$fh> == $$;
		3597	}
		3598
		3599	# a safer delete_package, copied from Symbol
		3600	sub clear_package($) {
		3601	my $pkg = shift;
		3602
		3603	# expand to full symbol table name if needed
		3604	unless ($pkg =~ /^main::.*::$/) {
		3605	$pkg = "main$pkg" if $pkg =~ /^::/;
		3606	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3607	$pkg .= '::' unless $pkg =~ /::$/;
		3608	}
		3609
		3610	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3611	my $stem_symtab = *{$stem}{HASH};
		3612
		3613	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3614	or return;
		3615
		3616	# clear all symbols
		3617	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3618	for my $name (keys %$leaf_symtab) {
		3619	_gv_clear *{"$pkg$name"};
		3620	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3621	}
		3622	warn "cleared package $pkg\n";#d#
		3623	}
		3624
2041	sub reload() {	3625	sub do_reload_perl() {
2042	# can/must only be called in main	3626	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	3627	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	3628	warn "can only reload from main coroutine";
2045	return;	3629	return;
2046	}	3630	}
2047		3631
		3632	return if $RELOAD++;
		3633
		3634	my $t1 = EV::time;
		3635
		3636	while ($RELOAD) {
2048	warn "reloading...";	3637	warn "reloading...";
2049		3638
2050	my $guard = freeze_mainloop;	3639	warn "entering sync_job";
		3640
		3641	cf::sync_job {
		3642	cf::write_runtime_sync; # external watchdog should not bark
2051	cf::emergency_save;	3643	cf::emergency_save;
		3644	cf::write_runtime_sync; # external watchdog should not bark
2052		3645
2053	eval {	3646	warn "syncing database to disk";
		3647	BDB::db_env_txn_checkpoint $DB_ENV;
		3648
2054	# if anything goes wrong in here, we should simply crash as we already saved	3649	# if anything goes wrong in here, we should simply crash as we already saved
2055		3650
2056	# cancel all watchers	3651	warn "flushing outstanding aio requests";
2057	for (Event::all_watchers) {	3652	while (IO::AIO::nreqs || BDB::nreqs) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	3653	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2059	}
2060
2061	# cancel all extension coros
2062	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();
2064
2065	# unload all extensions
2066	for (@exts) {
2067	warn "unloading <$_>";
2068	unload_extension $_;
2069	}
2070
2071	# unload all modules loaded from $LIBDIR
2072	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074
2075	warn "removing <$k>";
2076	delete $INC{$k};
2077
2078	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;
2080
2081	if (my $cb = $k->can ("unload_module")) {
2082	$cb->();
2083	}	3654	}
2084		3655
2085	Symbol::delete_package $k;	3656	warn "cancelling all extension coros";
		3657	$_->cancel for values %EXT_CORO;
		3658	%EXT_CORO = ();
		3659
		3660	warn "removing commands";
		3661	%COMMAND = ();
		3662
		3663	warn "removing ext/exti commands";
		3664	%EXTCMD = ();
		3665	%EXTICMD = ();
		3666
		3667	warn "unloading/nuking all extensions";
		3668	for my $pkg (@EXTS) {
		3669	warn "... unloading $pkg";
		3670
		3671	if (my $cb = $pkg->can ("unload")) {
		3672	eval {
		3673	$cb->($pkg);
		3674	1
		3675	} or warn "$pkg unloaded, but with errors: $@";
		3676	}
		3677
		3678	warn "... clearing $pkg";
		3679	clear_package $pkg;
2086	}	3680	}
2087		3681
2088	# sync database to disk	3682	warn "unloading all perl modules loaded from $LIBDIR";
2089	cf::db_sync;	3683	while (my ($k, $v) = each %INC) {
2090	IO::AIO::flush;	3684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2091		3685
		3686	warn "... unloading $k";
		3687	delete $INC{$k};
		3688
		3689	$k =~ s/\.pm$//;
		3690	$k =~ s/\//::/g;
		3691
		3692	if (my $cb = $k->can ("unload_module")) {
		3693	$cb->();
		3694	}
		3695
		3696	clear_package $k;
		3697	}
		3698
2092	# get rid of safe::, as good as possible	3699	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	3700	clear_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		3702
2096	# remove register_script_function callbacks	3703	warn "unloading cf.pm \"a bit\"";
2097	# TODO
2098
2099	# unload cf.pm "a bit"
2100	delete $INC{"cf.pm"};	3704	delete $INC{"cf.pm"};
		3705	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2101		3706
2102	# don't, removes xs symbols, too,	3707	# don't, removes xs symbols, too,
2103	# and global variables created in xs	3708	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	3709	#clear_package __PACKAGE__;
2105		3710
2106	# reload cf.pm	3711	warn "unload completed, starting to reload now";
		3712
2107	warn "reloading cf.pm";	3713	warn "reloading cf.pm";
2108	require cf;	3714	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		3716
2111	# load config and database again	3717	warn "loading config and database again";
2112	cf::cfg_load;	3718	cf::reload_config;
2113	cf::db_load;
2114		3719
2115	# load extensions
2116	warn "load extensions";	3720	warn "loading extensions";
2117	cf::load_extensions;	3721	cf::load_extensions;
2118		3722
2119	# reattach attachments to objects	3723	if ($REATTACH_ON_RELOAD) {
		3724	warn "reattaching attachments to objects/players";
		3725	_global_reattach; # objects, sockets
		3726	warn "reattaching attachments to maps";
		3727	reattach $_ for values %MAP;
		3728	warn "reattaching attachments to players";
		3729	reattach $_ for values %PLAYER;
		3730	}
		3731
		3732	warn "running post_init jobs";
		3733	(pop @POST_INIT)->(1) while @POST_INIT;
		3734
		3735	warn "leaving sync_job";
		3736
		3737	1
		3738	} or do {
		3739	warn $@;
		3740	cf::cleanup "error while reloading, exiting.";
		3741	};
		3742
2120	warn "reattach";	3743	warn "reloaded";
2121	_global_reattach;	3744	--$RELOAD;
		3745	}
		3746
		3747	$t1 = EV::time - $t1;
		3748	warn "reload completed in ${t1}s\n";
		3749	};
		3750
		3751	our $RELOAD_WATCHER; # used only during reload
		3752
		3753	sub reload_perl() {
		3754	# doing reload synchronously and two reloads happen back-to-back,
		3755	# coro crashes during coro_state_free->destroy here.
		3756
		3757	$RELOAD_WATCHER ||= cf::async {
		3758	Coro::AIO::aio_wait cache_extensions;
		3759
		3760	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3761	do_reload_perl;
		3762	undef $RELOAD_WATCHER;
		3763	};
2122	};	3764	};
2123
2124	if ($@) {
2125	warn $@;
2126	warn "error while reloading, exiting.";
2127	exit 1;
2128	}
2129
2130	warn "reloaded successfully";
2131	};
2132
2133	#############################################################################
2134
2135	unless ($LINK_MAP) {
2136	$LINK_MAP = cf::map::new;
2137
2138	$LINK_MAP->width (41);
2139	$LINK_MAP->height (41);
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,
2148	cb => sub {
2149	$_[0]->w->cancel;
2150
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});
2169
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3765	}
2175
2176	register "<global>", __PACKAGE__;
2177		3766
2178	register_command "reload" => sub {	3767	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3768	my ($who, $arg) = @_;
2180		3769
2181	if ($who->flag (FLAG_WIZ)) {	3770	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3771	$who->message ("reloading server.");
		3772	async {
		3773	$Coro::current->{desc} = "perl_reload";
		3774	reload_perl;
		3775	};
2185	}	3776	}
2186	};	3777	};
2187		3778
2188	unshift @INC, $LIBDIR;	3779	unshift @INC, $LIBDIR;
2189		3780
2190	$TICK_WATCHER = Event->timer (	3781	my $bug_warning = 0;
2191	reentrant => 0,	3782
2192	prio => 0,	3783	our @WAIT_FOR_TICK;
2193	at => $NEXT_TICK || $TICK,	3784	our @WAIT_FOR_TICK_BEGIN;
2194	data => WF_AUTOCANCEL,	3785
2195	cb => sub {	3786	sub wait_for_tick {
		3787	return if tick_inhibit || $Coro::current == $Coro::main;
		3788
		3789	my $signal = new Coro::Signal;
		3790	push @WAIT_FOR_TICK, $signal;
		3791	$signal->wait;
		3792	}
		3793
		3794	sub wait_for_tick_begin {
		3795	return if tick_inhibit || $Coro::current == $Coro::main;
		3796
		3797	my $signal = new Coro::Signal;
		3798	push @WAIT_FOR_TICK_BEGIN, $signal;
		3799	$signal->wait;
		3800	}
		3801
		3802	sub tick {
		3803	if ($Coro::current != $Coro::main) {
		3804	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3805	unless ++$bug_warning > 10;
		3806	return;
		3807	}
		3808
2196	cf::server_tick; # one server iteration	3809	cf::server_tick; # one server iteration
2197	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;
2199		3810
2200	# if we are delayed by four ticks or more, skip them all	3811	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3812	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2202		3813	Coro::async_pool {
2203	$TICK_WATCHER->at ($NEXT_TICK);	3814	$Coro::current->{desc} = "runtime saver";
2204	$TICK_WATCHER->start;
2205	},
2206	);
2207
2208	IO::AIO::max_poll_time $TICK * 0.2;
2209
2210	Event->io (
2211	fd => IO::AIO::poll_fileno,
2212	poll => 'r',
2213	prio => 5,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,
2220	after => 0,
2221	interval => 10,
2222	cb => sub {
2223	(Coro::unblock_sub {
2224	write_runtime	3815	write_runtime_sync
2225	or warn "ERROR: unable to write runtime file: $!";	3816	or warn "ERROR: unable to write runtime file: $!";
2226	})->();	3817	};
2227	},	3818	}
2228	);	3819
		3820	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3821	$sig->send;
		3822	}
		3823	while (my $sig = shift @WAIT_FOR_TICK) {
		3824	$sig->send;
		3825	}
		3826
		3827	$LOAD = ($NOW - $TICK_START) / $TICK;
		3828	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3829
		3830	if (0) {
		3831	if ($NEXT_TICK) {
		3832	my $jitter = $TICK_START - $NEXT_TICK;
		3833	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3834	warn "jitter $JITTER\n";#d#
		3835	}
		3836	}
		3837	}
		3838
		3839	{
		3840	# configure BDB
		3841
		3842	BDB::min_parallel 8;
		3843	BDB::max_poll_reqs $TICK * 0.1;
		3844	$AnyEvent::BDB::WATCHER->priority (1);
		3845
		3846	unless ($DB_ENV) {
		3847	$DB_ENV = BDB::db_env_create;
		3848	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3849	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3850	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3851	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3852	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3853
		3854	cf::sync_job {
		3855	eval {
		3856	BDB::db_env_open
		3857	$DB_ENV,
		3858	$BDBDIR,
		3859	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3860	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3861	0666;
		3862
		3863	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3864	};
		3865
		3866	cf::cleanup "db_env_open(db): $@" if $@;
		3867	};
		3868	}
		3869
		3870	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3871	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3872	};
		3873	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3874	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3875	};
		3876	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3877	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3878	};
		3879	}
		3880
		3881	{
		3882	# configure IO::AIO
		3883
		3884	IO::AIO::min_parallel 8;
		3885	IO::AIO::max_poll_time $TICK * 0.1;
		3886	undef $AnyEvent::AIO::WATCHER;
		3887	}
		3888
		3889	my $_log_backtrace;
		3890
		3891	sub _log_backtrace {
		3892	my ($msg, @addr) = @_;
		3893
		3894	$msg =~ s/\n//;
		3895
		3896	# limit the # of concurrent backtraces
		3897	if ($_log_backtrace < 2) {
		3898	++$_log_backtrace;
		3899	my $perl_bt = Carp::longmess $msg;
		3900	async {
		3901	$Coro::current->{desc} = "abt $msg";
		3902
		3903	my @bt = fork_call {
		3904	@addr = map { sprintf "%x", $_ } @addr;
		3905	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3906	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3907	or die "addr2line: $!";
		3908
		3909	my @funcs;
		3910	my @res = <$fh>;
		3911	chomp for @res;
		3912	while (@res) {
		3913	my ($func, $line) = splice @res, 0, 2, ();
		3914	push @funcs, "[$func] $line";
		3915	}
		3916
		3917	@funcs
		3918	};
		3919
		3920	LOG llevInfo, "[ABT] $perl_bt\n";
		3921	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3922	LOG llevInfo, "[ABT] $_\n" for @bt;
		3923	--$_log_backtrace;
		3924	};
		3925	} else {
		3926	LOG llevInfo, "[ABT] $msg\n";
		3927	LOG llevInfo, "[ABT] [suppressed]\n";
		3928	}
		3929	}
		3930
		3931	# load additional modules
		3932	require "cf/$_.pm" for @EXTRA_MODULES;
2229		3933
2230	END { cf::emergency_save }	3934	END { cf::emergency_save }
2231		3935
2232	1	3936	1
2233		3937

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