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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC vs.
Revision 1.469 by root, Mon Mar 2 22:25:19 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		76
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		78
35	our %COMMAND = ();	79	our %COMMAND = ();
36	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
		81
		82	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
		85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
38		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	89	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		90
42	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	109	our $NEXT_TICK;
45	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default on
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
46		118
47	our %CFG;	119	our %CFG;
48		120
49	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
51		124
52	our %MAP; # all maps	125	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	126	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	127	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	128
56	our %EXT_CORO;	129	# used to convert map paths into valid unix filenames by replacing / by ∕
		130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
57		140
58	binmode STDOUT;	141	binmode STDOUT;
59	binmode STDERR;	142	binmode STDERR;
60		143
61	# read virtual server time, if available	144	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
66	}	149	}
67		150
68	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		152
74	# a special map that is always available	153	mkdir $_
75	our $LINK_MAP;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		155
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	156	our $EMERGENCY_POSITION;
		157
		158	sub cf::map::normalise;
78		159
79	#############################################################################	160	#############################################################################
80		161
81	=head2 GLOBAL VARIABLES	162	=head2 GLOBAL VARIABLES
82		163
…		…
89	=item $cf::RUNTIME	170	=item $cf::RUNTIME
90		171
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	172	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	173	every server tick.
93		174
94	=item $cf::LIBDIR	175	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		176	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		177	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		178
96	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	180	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		181	unique-items directory, player file directory, random maps directory and
		182	database environment.
98		183
99	=item $cf::NOW	184	=item $cf::NOW
100		185
101	The time of the last (current) server tick.	186	The time of the last (current) server tick.
102		187
103	=item $cf::TICK	188	=item $cf::TICK
104		189
105	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
106		191
		192	=item $cf::LOADAVG
		193
		194	The current CPU load on the server (alpha-smoothed), as a value between 0
		195	(none) and 1 (overloaded), indicating how much time is spent on processing
		196	objects per tick. Healthy values are < 0.5.
		197
		198	=item $cf::LOAD
		199
		200	The raw value load value from the last tick.
		201
107	=item %cf::CFG	202	=item %cf::CFG
108		203
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	205	from wherever your confdir points to.
		206
		207	=item cf::wait_for_tick, cf::wait_for_tick_begin
		208
		209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		210	returns directly I<after> the tick processing (and consequently, can only wake one process
		211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		212
		213	=item @cf::INVOKE_RESULTS
		214
		215	This array contains the results of the last C<invoke ()> call. When
		216	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		217	that call.
111		218
112	=back	219	=back
113		220
114	=cut	221	=cut
115		222
116	BEGIN {	223	BEGIN {
117	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	225	my $msg = join "", @_;
119	utf8::encode $msg;
120		226
121	$msg .= "\n"	227	$msg .= "\n"
122	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
123		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
124	LOG llevError, "cfperl: $msg";	232	LOG llevError, $msg;
125	};	233	};
126	}	234	}
		235
		236	$Coro::State::DIEHOOK = sub {
		237	return unless $^S eq 0; # "eq", not "=="
		238
		239	if ($Coro::current == $Coro::main) {#d#
		240	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		241	return;#d#
		242	}#d#
		243
		244	# kill coroutine otherwise
		245	warn Carp::longmess $_[0];
		246	Coro::terminate
		247	};
		248
		249	$SIG{__DIE__} = sub { }; #d#?
127		250
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	255	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		256	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	257	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		258
135	# we bless all objects into (empty) derived classes to force a method lookup	259	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	260	# within the Safe compartment.
137	for my $pkg (qw(	261	for my $pkg (qw(
138	cf::global cf::attachable	262	cf::global cf::attachable
139	cf::object cf::object::player	263	cf::object cf::object::player
140	cf::client cf::player	264	cf::client cf::player
141	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
142	cf::map cf::party cf::region	267	cf::party cf::region
143	)) {	268	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	270	}
147		271
148	$Event::DIED = sub {	272	$EV::DIED = sub {
149	warn "error in event callback: @_";	273	warn "error in event callback: @_";
150	};	274	};
151		275
152	my %ext_pkg;	276	#############################################################################
153	my @exts;
154	my @hook;
155		277
156	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
157		279
158	=over 4	280	=over 4
159		281
160	=cut	282	=item dumpval $ref
161		283
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	284	=cut
163		285
		286	sub dumpval {
		287	eval {
		288	local $SIG{__DIE__};
		289	my $d;
		290	if (1) {
		291	$d = new Data::Dumper([$_[0]], ["*var"]);
		292	$d->Terse(1);
		293	$d->Indent(2);
		294	$d->Quotekeys(0);
		295	$d->Useqq(1);
		296	#$d->Bless(...);
		297	$d->Seen($_[1]) if @_ > 1;
		298	$d = $d->Dump();
		299	}
		300	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		301	$d
		302	} || "[unable to dump $_[0]: '$@']";
		303	}
		304
164	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
165		306
166	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
167		308
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
176		310
177	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
178		312
179	=cut	313	=cut
180		314
181	sub to_json($) {	315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		316
186	=item my $guard = cf::guard { BLOCK }	317	sub encode_json($) { $json_coder->encode ($_[0]) }
		318	sub decode_json($) { $json_coder->decode ($_[0]) }
187		319
188	Run the given callback when the guard object gets destroyed (useful for	320	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		321
191	You can call C<< ->cancel >> on the guard object to stop the block from	322	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	323	but I<before> the server starts ticking again.
193		324
194	=cut	325	The cdoeblock will have a single boolean argument to indicate whether this
		326	is a reload or not.
195		327
196	sub guard(&) {	328	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		329
200	sub cf::guard::cancel {	330	sub post_init(&) {
201	${$_[0]} = sub { };	331	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	332	}
207		333
208	=item cf::lock_wait $string	334	=item cf::lock_wait $string
209		335
210	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
211		337
212	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
213		339
214	Wait until the given lock is available and then acquires it and returns	340	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	341	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
217	returned.	343	returned.
218		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
219	Lock names should begin with a unique identifier (for example, find_map	348	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	349	uses map_find and cf::map::load uses map_load).
221		350
222	=cut	351	=item $locked = cf::lock_active $string
223		352
224	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
225		358
226	sub lock_wait($) {	359	sub lock_wait($) {
227	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	361	}
235		362
236	sub lock_acquire($) {	363	sub lock_acquire($) {
237	my ($key) = @_;	364	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	365	}
		366
		367	sub lock_active($) {
		368	$LOCKS->count ($_[0]) < 1
		369	}
		370
		371	sub freeze_mainloop {
		372	tick_inhibit_inc;
		373
		374	&Guard::guard (\&tick_inhibit_dec);
		375	}
		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($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
		435	}
		436	};
		437
		438	sub get_slot($;$$) {
		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	$sig->wait;
		450	}
		451
		452	=item cf::async { BLOCK }
		453
		454	Currently the same as Coro::async_pool, meaning you cannot use
		455	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		456	thing you are allowed to do is call C<prio> on it.
		457
		458	=cut
		459
		460	BEGIN { *async = \&Coro::async_pool }
249		461
250	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
251		463
252	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
255		468
256	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
259	fast or be very important.	472	fast or be very important.
…		…
262		475
263	sub sync_job(&) {	476	sub sync_job(&) {
264	my ($job) = @_;	477	my ($job) = @_;
265		478
266	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
267	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
269		484
270	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	486
272	local $FREEZE = 1;	487	my $freeze_guard = freeze_mainloop;
273		488
274	my $busy = 1;	489	my $busy = 1;
275	my @res;	490	my @res;
276		491
277	(Coro::async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	494	@res = eval { $job->() };
279	warn $@ if $@;	495	warn $@ if $@;
280	undef $busy;	496	undef $busy;
281	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
282		498
283	while ($busy) {	499	while ($busy) {
		500	if (Coro::nready) {
284	Coro::cede_notself;	501	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
286	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
287		510
288	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
289	} else {	512	} else {
290	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
291		514
292	$job->()	515	$job->()
293	}	516	}
294	}	517	}
295		518
296	=item $coro = cf::coro { BLOCK }	519	=item $coro = cf::async_ext { BLOCK }
297		520
298	Creates and returns a new coro. This coro is automcatially being canceled	521	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	522	extension calling this is being unloaded.
300		523
301	=cut	524	=cut
302		525
303	sub coro(&) {	526	sub async_ext(&) {
304	my $cb = shift;	527	my $cb = shift;
305		528
306	my $coro; $coro = async {	529	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		530
313	$coro->on_destroy (sub {	531	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	532	delete $EXT_CORO{$coro+0};
315	});	533	});
316	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
317		535
318	$coro	536	$coro
319	}	537	}
320		538
321	sub write_runtime {	539	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		540
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	541	Executes the given code block with the given arguments in a seperate
325	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.
326		545
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	546	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		547
331	aio_fsync $fh	548	sub fork_call(&@) {
332	and return;	549	my ($cb, @args) = @_;
333		550
334	close $fh	551	# we seemingly have to make a local copy of the whole thing,
335	or return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
336		554
337	aio_rename "$runtime~", $runtime	555	my @res = Coro::Util::fork_eval {
338	and return;	556	reset_signals;
		557	&$cb
		558	}, @args;
339		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($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
340	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		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 => $type });
341	}	726	}
342		727
343	=back	728	=back
344		729
345	=cut	730	=cut
346		731
347	#############################################################################	732	#############################################################################
348		733
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
470		735
471	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
472	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")
473	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
474		739
475	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>
476	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
477	crossfire+).	742	Deliantra).
478		743
479	=over 4	744	=over 4
480		745
481	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
482		747
…		…
526	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
527		792
528	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
530		795
531	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
532	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.
533		798
534	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
535		800
536	=over 4	801	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	861	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	862	our @CB_MAP = ();
598		863
599	my %attachment;	864	my %attachment;
600		865
		866	sub cf::attachable::thawer_merge {
		867	# simply override everything except _meta
		868	local $_[0]{_meta};
		869	%{$_[0]} = %{$_[1]};
		870	}
		871
601	sub _attach_cb($$$$) {	872	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	873	my ($registry, $event, $prio, $cb) = @_;
603		874
604	use sort 'stable';	875	use sort 'stable';
605		876
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
640		911
641	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		916
646	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	918	my $pkg = shift @arg;
648		919
649	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
679	}	950	}
680		951
681	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
682	} else {	953	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	955	}
685		956
686	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
687	}	958	}
688		959
…		…
690	if (ref $_[0]) {	961	if (ref $_[0]) {
691	_object_attach @_;	962	_object_attach @_;
692	} else {	963	} else {
693	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
694	}	965	}
		966	_recalc_want;
695	};	967	};
696		968
697	# all those should be optimised	969	# all those should be optimised
698	sub cf::attachable::detach {	970	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
703	reattach ($obj);	975	reattach ($obj);
704	} else {	976	} else {
705	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
706	}	978	}
		979	_recalc_want;
707	};	980	};
708		981
709	sub cf::attachable::attached {	982	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
711		984
…		…
726	";	999	";
727	die if $@;	1000	die if $@;
728	}	1001	}
729		1002
730	our $override;	1003	our $override;
731	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?
732		1005
733	sub override {	1006	sub override {
734	$override = 1;	1007	$override = 1;
735	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
736	}	1009	}
737		1010
738	sub do_invoke {	1011	sub do_invoke {
739	my $event = shift;	1012	my $event = shift;
740	my $callbacks = shift;	1013	my $callbacks = shift;
741		1014
742	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
743		1016
744	local $override;	1017	local $override;
745		1018
746	for (@$callbacks) {	1019	for (@$callbacks) {
747	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
756	}	1029	}
757		1030
758	0	1031	0
759	}	1032	}
760		1033
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1035
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1037
765	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
766		1039
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1043
771	=back	1044	=back
772		1045
773	=cut	1046	=cut
774		1047
775	#############################################################################	1048	#############################################################################
776	# 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	}
777		1092
778	sub reattach {	1093	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
780	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
781		1099
782	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
783		1101
784	@$registry = ();	1102	@$registry = ();
785		1103
…		…
800	cf::attachable->attach (	1118	cf::attachable->attach (
801	prio => -1000000,	1119	prio => -1000000,
802	on_instantiate => sub {	1120	on_instantiate => sub {
803	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
804		1122
805	$data = from_json $data;	1123	$data = decode_json $data;
806		1124
807	for (@$data) {	1125	for (@$data) {
808	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
809		1127
810	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1144	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
828		1146
829	sync_job {	1147	sync_job {
830	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
833		1152
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1157	aio_close $fh;
839		1158
840	if (@$objs) {	1159	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1164	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1165	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
848	}	1167	}
849	} else {	1168	} else {
850	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
851	}	1170	}
852		1171
853	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1176	} else {
855	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
856	}	1178	}
857	} else {	1179	} else {
858	aio_unlink $filename;	1180	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
860	}	1182	}
861	}	1183	};
862	}	1184	}
863		1185
864	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
866		1188
…		…
878	or return;	1200	or return;
879		1201
880	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
882	or return;	1204	or return;
		1205
883	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
884	}	1208	}
885		1209
		1210	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
888	return ($data, $av);	1214	($data, $av)
889	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
890		1222
891	#############################################################################	1223	#############################################################################
892	# command handling &c	1224	# command handling &c
893		1225
894	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1240	}
909		1241
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1243
912	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.
913		1249
914	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
915	called.	1251	called.
916		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
917	=cut	1264	=cut
918		1265
919	sub register_extcmd {	1266	sub register_extcmd {
920	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
921		1268
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1269	$EXTCMD{$name} = $cb;
926	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
927		1279
928	cf::player->attach (	1280	cf::player->attach (
929	on_command => sub {	1281	on_command => sub {
930	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
931		1283
…		…
939	cf::override;	1291	cf::override;
940	},	1292	},
941	on_extcmd => sub {	1293	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
943		1295
944	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1297
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
952	} else {	1313	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1315	}
955		1316
956	cf::override;	1317	cf::override;
957	},	1318	},
958	);	1319	);
959		1320
960	sub register {	1321	# "readahead" all extensions
961	my ($base, $pkg) = @_;	1322	sub cache_extensions {
		1323	my $grp = IO::AIO::aio_group;
962		1324
963	#TODO	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
964	}	1326	for (grep /\.ext$/, @{$_[0]}) {
		1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1328	}
		1329	};
965		1330
		1331	$grp
		1332	}
		1333
966	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($) {
967	my ($path) = @_;	1689	my ($path) = @_;
968		1690
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1691	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1692
975	warn "loading '$path' into '$pkg'\n";	1693	for my $region (list) {
976		1694	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1695	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1696	if $region->specificity > $specificity;
979		1697	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1698	}
1009		1699
1010	# remove commands	1700	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1701	}
1116		1702
1117	=back	1703	=back
1118
1119		1704
1120	=head3 cf::map	1705	=head3 cf::map
1121		1706
1122	=over 4	1707	=over 4
1123		1708
…		…
1126	package cf::map;	1711	package cf::map;
1127		1712
1128	use Fcntl;	1713	use Fcntl;
1129	use Coro::AIO;	1714	use Coro::AIO;
1130		1715
		1716	use overload
		1717	'""' => \&as_string,
		1718	fallback => 1;
		1719
1131	our $MAX_RESET = 7200;	1720	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1721	our $DEFAULT_RESET = 3000;
1133		1722
1134	sub generate_random_map {	1723	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1724	my ($self, $rmp) = @_;
		1725
		1726	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1727
1137	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1729	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$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},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
1151	}	1742	}
1152		1743
1153	# and all this just because we cannot iterate over	1744	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1745
1158	$_->change_map_light ($change)	1746	Register a handler for the map path matching the given regex at the
1159	for grep $_->outdoor, values %cf::MAP;	1747	givne priority (higher is better, built-in handlers have priority 0, the
1160	}	1748	default).
1161		1749
1162	sub try_load_header($) {	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 {
1163	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) = @_;
1164		1889
1165	utf8::encode $path;	1890	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1167	or return;	1892	or return;
1168		1893
1169	my $map = cf::map::new	1894	$self->_load_header ($f)
1170	or return;	1895	or return;
1171		1896
1172	$map->load_header ($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
1173	or return;	1943	or return;
		1944	$self->prepare_orig;
		1945	}
1174		1946
1175	$map->{load_path} = $path;	1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
1176		1949
1177	$map	1950	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1951	unless $self->default_region;
1179		1952
		1953	1
		1954	}
		1955
		1956	sub find;
1180	sub find_map {	1957	sub find {
1181	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1182		1959
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1961
1188	cf::lock_wait "map_find:$key";	1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1189
1190	$cf::MAP{$key} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1192		1964
1193	# do it the slow way	1965	$cf::MAP{$path} || do {
1194	my $map = try_load_header $path->save_path;	1966	my $map = new_from_path cf::map $path
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1967	or return;
1208		1968
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1970
1222	if ($map->should_reset) {	1971	$map->load_header
		1972	or return;
		1973
		1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1975	# doing this can freeze the server in a sync job, obviously
		1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1223	$map->reset;	1979	$map->reset;
1224	undef $guard;	1980	return find $path;
1225	$map = cf::map::find_map ($path)
1226	or return;
1227	}	1981	}
1228		1982
1229	$cf::MAP{$key} = $map	1983	$cf::MAP{$path} = $map
1230	}	1984	}
1231	}	1985	}
		1986
		1987	sub pre_load { }
		1988	sub post_load { }
1232		1989
1233	sub load {	1990	sub load {
1234	my ($self) = @_;	1991	my ($self) = @_;
1235		1992
		1993	local $self->{deny_reset} = 1; # loading can take a long time
		1994
1236	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1998	my $guard = cf::lock_acquire "map_data:$path";
1238		1999
		2000	return unless $self->valid;
1239	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1240		2002
1241	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1242		2004
1243	$self->alloc;	2005	$self->alloc;
1244	$self->load_objects ($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)
1245	or return;	2013	or return;
1246		2014
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1248	if delete $self->{load_original};	2016	if delete $self->{load_original};
1249		2017
1250	if (my $uniq = $path->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	2019	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1253	$self->clear_unique_items;	2022	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1255	}	2026	}
1256	}	2027	}
1257		2028
		2029	$f->resolve_delayed_derefs;
		2030
		2031	cf::cede_to_tick;
1258	# now do the right thing for maps	2032	# now do the right thing for maps
1259	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1270	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;
1271	$self->activate;	2043	$self->activate;
1272	}	2044	}
1273		2045
		2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
		2048
1274	$self->in_memory (cf::MAP_IN_MEMORY);	2049	$self->in_memory (cf::MAP_ACTIVE);
1275	}	2050	}
1276		2051
1277	sub load_map_sync {	2052	$self->post_load;
		2053	}
		2054
		2055	sub customise_for {
		2056	my ($self, $ob) = @_;
		2057
		2058	return find "~" . $ob->name . "/" . $self->{path}
		2059	if $self->per_player;
		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
		2064	$self
		2065	}
		2066
		2067	# find and load all maps in the 3x3 area around a map
		2068	sub load_neighbours {
		2069	my ($map) = @_;
		2070
		2071	my @neigh; # diagonal neighbours
		2072
		2073	for (0 .. 3) {
		2074	my $neigh = $map->tile_path ($_)
		2075	or next;
		2076	$neigh = find $neigh, $map
		2077	or next;
		2078	$neigh->load;
		2079
		2080	push @neigh,
		2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2083	}
		2084
		2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
		2087	my $neigh = find $path, $origin
		2088	or next;
		2089	$neigh->load;
		2090	}
		2091	}
		2092
		2093	sub find_sync {
1278	my ($path, $origin) = @_;	2094	my ($path, $origin) = @_;
1279		2095
1280	#warn "load_map_sync<$path, $origin>\n";#d#	2096	cf::sync_job { find $path, $origin }
		2097	}
1281		2098
1282	cf::sync_job {	2099	sub do_load_sync {
1283	my $map = cf::map::find_map $path, $origin	2100	my ($map) = @_;
1284	or return;	2101
1285	$map->load;	2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1286	$map	2103	if $Coro::current == $Coro::main;
		2104
		2105	cf::sync_job { $map->load };
		2106	}
		2107
		2108	our %MAP_PREFETCH;
		2109	our $MAP_PREFETCHER = undef;
		2110
		2111	sub find_async {
		2112	my ($path, $origin, $load) = @_;
		2113
		2114	$path = normalise $path, $origin && $origin->{path};
		2115
		2116	if (my $map = $cf::MAP{$path}) {
		2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2118	}
		2119
		2120	$MAP_PREFETCH{$path} |= $load;
		2121
		2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
		2125	while (%MAP_PREFETCH) {
		2126	while (my ($k, $v) = each %MAP_PREFETCH) {
		2127	if (my $map = find $k) {
		2128	$map->load if $v;
		2129	}
		2130
		2131	delete $MAP_PREFETCH{$k};
		2132	}
		2133	}
		2134	undef $MAP_PREFETCHER;
1287	}	2135	};
		2136	$MAP_PREFETCHER->prio (6);
		2137
		2138	()
1288	}	2139	}
1289		2140
1290	sub save {	2141	sub save {
1291	my ($self) = @_;	2142	my ($self) = @_;
1292		2143
		2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2145
1293	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1294		2147
1295	return unless $self->dirty;	2148	return unless $self->dirty;
1296		2149
1297	my $save = $self->{path}->save_path; utf8::encode $save;	2150	my $save = $self->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2151	my $uniq = $self->uniq_path; utf8::encode $uniq;
1299		2152
1300	$self->{load_path} = $save;	2153	$self->{load_path} = $save;
1301		2154
1302	return if $self->{deny_save};	2155	return if $self->{deny_save};
1303		2156
		2157	local $self->{last_access} = $self->last_access;#d#
		2158
		2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
		2161	$_->contr->save for $self->players;
		2162	};
		2163
		2164	cf::get_slot 0.02;
		2165
1304	if ($uniq) {	2166	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {	2169	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2170	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}	2171	}
1310	}	2172	}
1311		2173
1312	sub swap_out {	2174	sub swap_out {
1313	my ($self) = @_;	2175	my ($self) = @_;
1314		2176
		2177	# save first because save cedes
		2178	$self->save;
		2179
		2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2181
1315	return if $self->players;	2182	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1317	return if $self->{deny_save};	2184	return if $self->{deny_save};
1318		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
1319	$self->save;	2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1320	$self->clear;	2190	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2191	}
1323		2192
1324	sub reset_at {	2193	sub reset_at {
1325	my ($self) = @_;	2194	my ($self) = @_;
1326		2195
1327	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1330		2198
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2201
…		…
1338	my ($self) = @_;	2206	my ($self) = @_;
1339		2207
1340	$self->reset_at <= $cf::RUNTIME	2208	$self->reset_at <= $cf::RUNTIME
1341	}	2209	}
1342		2210
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2211	sub reset {
1365	my ($self) = @_;	2212	my ($self) = @_;
1366		2213
		2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2215
1367	return if $self->players;	2216	return if $self->players;
1368	return if $self->{path}{user_rel};#d#
1369		2217
1370	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	}
1371		2229
1372	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1373		2231
		2232	$self->deactivate;
1374	$_->clear_links_to ($self) for values %cf::MAP;	2233	$_->clear_links_to ($self) for values %cf::MAP;
		2234	$self->clear;
1375		2235
1376	$self->unlink_save;	2236	$self->unlink_save;
1377	$self->destroy;	2237	$self->destroy;
1378	}	2238	}
1379		2239
1380	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1381		2241
1382	sub nuke {	2242	sub nuke {
1383	my ($self) = @_;	2243	my ($self) = @_;
1384		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};
1385	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2257
		2258	$cf::MAP{$self->path} = $self;
		2259	}
		2260
1388	$self->reset; # polite request, might not happen	2261	$self->reset; # polite request, might not happen
1389	}	2262	}
1390		2263
1391	sub customise_for {	2264	=item $maps = cf::map::tmp_maps
1392	my ($map, $ob) = @_;
1393		2265
1394	if ($map->per_player) {	2266	Returns an arrayref with all map paths of currently instantiated and saved
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2267	maps. May block.
		2268
		2269	=cut
		2270
		2271	sub tmp_maps() {
1396	}	2272	[
1397		2273	map {
1398	$map	2274	utf8::decode $_;
		2275	/\.map$/
		2276	? normalise $_
		2277	: ()
		2278	} @{ aio_readdir $TMPDIR or [] }
		2279	]
1399	}	2280	}
1400		2281
1401	sub emergency_save {	2282	=item $maps = cf::map::random_maps
1402	local $cf::FREEZE = 1;
1403		2283
1404	warn "enter emergency map save\n";	2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	random maps. May block.
1405		2286
1406	cf::sync_job {	2287	=cut
1407	warn "begin emergency map save\n";	2288
1408	$_->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
1409	};	2370	}
1410
1411	warn "end emergency map save\n";
1412	}	2371	}
1413		2372
1414	package cf;	2373	package cf;
1415		2374
1416	=back	2375	=back
1417
1418		2376
1419	=head3 cf::object::player	2377	=head3 cf::object::player
1420		2378
1421	=over 4	2379	=over 4
1422		2380
…		…
1425	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>
1426	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
1427	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1428		2386
1429	=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	};
1430		2402
1431	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1432	# with dialog boxes.	2404	# with dialog boxes.
1433	#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
1434	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1436		2408
1437	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438		2410
1439	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1440	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1441	} 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 {
1442	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1443	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1444	}	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 (@_);
1445	}	2436	}
1446		2437
1447	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1448		2439
1449	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1462		2453
1463	=item $player_object->enter_link	2454	=item $player_object->enter_link
1464		2455
1465	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}>).
1466		2457
1467	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.
1468	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.
1469		2464
1470	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1471		2466
1472	Moves the player out of the specila link map onto the given map. If the	2467	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	2468	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	2469	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	2470	fails, to the emergency map position.
1476		2471
1477	Might block.	2472	Might block.
1478		2473
1479	=cut	2474	=cut
		2475
		2476	sub link_map {
		2477	unless ($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	$LINK_MAP
		2484	}
1480		2485
1481	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1482	my ($self) = @_;	2487	my ($self) = @_;
1483		2488
1484	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1485		2490
1486	return if $self->map == $LINK_MAP;	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		2492
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1490		2495
1491	$self->enter_map ($LINK_MAP, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1492	}	2497	}
1493		2498
1494	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1496		2503
1497	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1498		2505
1499	unless ($map) {	2506	unless ($map) {
1500	# restore original map position	2507	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	2508	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	2509	$map = cf::map::find $map;
1503		2510
1504	unless ($map) {	2511	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	2512	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	2513	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	2514	or die "FATAL: cannot load emergency map\n";
1508	}	2515	}
1509	}	2516	}
1510		2517
1511	($x, $y) = (-1, -1)	2518	($x, $y) = (-1, -1)
…		…
1514	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1517		2524
1518	$map->load;	2525	$map->load;
		2526	$map->load_neighbours;
1519		2527
		2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1520	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1521	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1522	}	2534	}
1523		2535
1524	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1525	on_logout => sub {
1526	my ($pl) = @_;
1527		2537
1528	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1529	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1530	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1531	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1532	};	2542	be called at the end of this process.
1533	}
1534	},
1535	on_login => sub {
1536	my ($pl) = @_;
1537		2543
1538	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1539	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1540	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;
1542	Coro::async {
1543	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;
1547	};
1548	}
1549	},
1550	);
1551		2546
1552	=item $player_object->goto_map ($path, $x, $y)
1553
1554	=cut	2547	=cut
1555		2548
		2549	our $GOTOGEN;
		2550
1556	sub cf::object::player::goto_map {	2551	sub cf::object::player::goto {
1557	my ($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;
1558		2556
1559	$self->enter_link;	2557	$self->enter_link;
1560		2558
1561	(Coro::async {	2559	(async {
1562	$path = new cf::path $path;	2560	$Coro::current->{desc} = "player::goto $path $x $y";
1563		2561
1564	my $map = cf::map::find_map $path->as_string;	2562	# *tag paths override both path and x|y
		2563	if ($path =~ /^\*(.*)$/) {
		2564	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2565	my $ob = $obs[rand @obs];
		2566
		2567	# see if we actually can go there
		2568	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2569	$ob = $obs[rand @obs];
		2570	} else {
		2571	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	}
		2573	# else put us there anyways for now #d#
		2574
		2575	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2576	} else {
		2577	($path, $x, $y) = (undef, undef, undef);
		2578	}
		2579	}
		2580
		2581	my $map = eval {
		2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1565	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
1566		2586	$map = $check->($map) if $check && $map;
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	2587	} else {
1568	# if $map;
1569
1570	$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	}
1571		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};
1572	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1573	})->prio (1);	2605	})->prio (1);
1574	}	2606	}
1575		2607
1576	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1577		2609
…		…
1579		2611
1580	sub parse_random_map_params {	2612	sub parse_random_map_params {
1581	my ($spec) = @_;	2613	my ($spec) = @_;
1582		2614
1583	my $rmp = { # defaults	2615	my $rmp = { # defaults
1584	xsize => 10,	2616	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	2617	ysize => (cf::rndm 15, 40),
		2618	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2619	#layout => string,
1586	};	2620	};
1587		2621
1588	for (split /\n/, $spec) {	2622	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	2623	my ($k, $v) = split /\s+/, $_, 2;
1590		2624
…		…
1602	# that depends on the exit object	2636	# that depends on the exit object
1603		2637
1604	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
1605		2639
1606	if ($exit->map) {	2640	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	2641	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1611	}	2647	}
1612		2648
1613	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1614		2650
1615	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1616	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
		2653	my $meta = "$RANDOMDIR/$md5.meta";
1617		2654
1618	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) {
1619	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;
1620		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1621	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1623	}	2666	}
1624	}	2667	}
1625		2668
1626	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
1628		2671
1629	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1630		2673
1631	$self->enter_link;	2674	$self->enter_link;
1632		2675
1633	(Coro::async {	2676	(async {
		2677	$Coro::current->{desc} = "enter_exit";
		2678
1634	unless (eval {	2679	unless (eval {
		2680	$self->deactivate_recursive; # just to be sure
1635		2681
		2682	# random map handling
		2683	{
		2684	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2685
1636	prepare_random_map $exit	2686	prepare_random_map $exit
1637	if $exit->slaying eq "/!";	2687	if $exit->slaying eq "/!";
		2688	}
1638		2689
1639	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;
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
1641		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
1642	1;	2700	1
1643	}) {	2701	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1645	. "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. "
1646	. "Please report this to the dungeon master",	2704	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2706
1649	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1650	$self->leave_link;	2708	$self->leave_link;
1651	}	2709	}
1652	})->prio (1);	2710	})->prio (1);
…		…
1665		2723
1666	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1668		2726
1669	utf8::encode $text;	2727	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2729	}
1672		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	}
1673		2913
1674	=item $success = $client->query ($flags, "text", \&cb)	2914	=item $success = $client->query ($flags, "text", \&cb)
1675		2915
1676	Queues a query to the client, calling the given callback with	2916	Queues a query to the client, calling the given callback with
1677	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>,
1678	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>.
1679		2919
1680	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
1681	reliable at some point in the future.	2921	become reliable at some point in the future.
1682		2922
1683	=cut	2923	=cut
1684		2924
1685	sub cf::client::query {	2925	sub cf::client::query {
1686	my ($self, $flags, $text, $cb) = @_;	2926	my ($self, $flags, $text, $cb) = @_;
…		…
1694	utf8::encode $text;	2934	utf8::encode $text;
1695	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696		2936
1697	$self->send_packet ($self->{query_queue}[0][0])	2937	$self->send_packet ($self->{query_queue}[0][0])
1698	if @{ $self->{query_queue} } == 1;	2938	if @{ $self->{query_queue} } == 1;
		2939
		2940	1
1699	}	2941	}
1700		2942
1701	cf::client->attach (	2943	cf::client->attach (
		2944	on_connect => sub {
		2945	my ($ns) = @_;
		2946
		2947	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2948	},
1702	on_reply => sub {	2949	on_reply => sub {
1703	my ($ns, $msg) = @_;	2950	my ($ns, $msg) = @_;
1704		2951
1705	# this weird shuffling is so that direct followup queries	2952	# this weird shuffling is so that direct followup queries
1706	# get handled first	2953	# get handled first
1707	my $queue = delete $ns->{query_queue};	2954	my $queue = delete $ns->{query_queue}
		2955	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		2956
1709	(shift @$queue)->[1]->($msg);	2957	(shift @$queue)->[1]->($msg);
		2958	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		2959
1711	push @{ $ns->{query_queue} }, @$queue;	2960	push @{ $ns->{query_queue} }, @$queue;
1712		2961
1713	if (@{ $ns->{query_queue} } == @$queue) {	2962	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	2963	if (@$queue) {
…		…
1716	} else {	2965	} else {
1717	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2966	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718	}	2967	}
1719	}	2968	}
1720	},	2969	},
		2970	on_exticmd => sub {
		2971	my ($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	},
1721	);	2996	);
1722		2997
1723	=item $client->coro (\&cb)	2998	=item $client->async (\&cb)
1724		2999
1725	Create a new coroutine, running the specified callback. The coroutine will	3000	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	3001	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	3002	or loss of connection).
1728		3003
1729	=cut	3004	=cut
1730		3005
1731	sub cf::client::coro {	3006	sub cf::client::async {
1732	my ($self, $cb) = @_;	3007	my ($self, $cb) = @_;
1733		3008
1734	my $coro; $coro = async {	3009	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		3010
1741	$coro->on_destroy (sub {	3011	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	3012	delete $self->{_coro}{$coro+0};
1743	});	3013	});
1744		3014
…		…
1771	our $safe = new Safe "safe";	3041	our $safe = new Safe "safe";
1772	our $safe_hole = new Safe::Hole;	3042	our $safe_hole = new Safe::Hole;
1773		3043
1774	$SIG{FPE} = 'IGNORE';	3044	$SIG{FPE} = 'IGNORE';
1775		3045
1776	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3046	$safe->permit_only (Opcode::opset qw(
		3047	:base_core :base_mem :base_orig :base_math
		3048	grepstart grepwhile mapstart mapwhile
		3049	sort time
		3050	));
1777		3051
1778	# here we export the classes and methods available to script code	3052	# here we export the classes and methods available to script code
1779		3053
1780	=pod	3054	=pod
1781		3055
1782	The following fucntions and emthods are available within a safe environment:	3056	The following functions and methods are available within a safe environment:
1783		3057
1784	cf::object contr pay_amount pay_player map	3058	cf::object
		3059	contr pay_amount pay_player map x y force_find force_add destroy
		3060	insert remove name archname title slaying race decrease split
		3061	value
		3062
1785	cf::object::player player	3063	cf::object::player
1786	cf::player peaceful	3064	player
1787	cf::map trigger	3065
		3066	cf::player
		3067	peaceful
		3068
		3069	cf::map
		3070	trigger
1788		3071
1789	=cut	3072	=cut
1790		3073
1791	for (	3074	for (
1792	["cf::object" => qw(contr pay_amount pay_player map)],	3075	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3076	insert remove inv nrof name archname title slaying race
		3077	decrease split destroy change_exp value msg lore send_msg)],
1793	["cf::object::player" => qw(player)],	3078	["cf::object::player" => qw(player)],
1794	["cf::player" => qw(peaceful)],	3079	["cf::player" => qw(peaceful send_msg)],
1795	["cf::map" => qw(trigger)],	3080	["cf::map" => qw(trigger)],
1796	) {	3081	) {
1797	no strict 'refs';	3082	no strict 'refs';
1798	my ($pkg, @funs) = @$_;	3083	my ($pkg, @funs) = @$_;
1799	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3084	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1816	my ($code, %vars) = @_;	3101	my ($code, %vars) = @_;
1817		3102
1818	my $qcode = $code;	3103	my $qcode = $code;
1819	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3104	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1820	$qcode =~ s/\n/\\n/g;	3105	$qcode =~ s/\n/\\n/g;
		3106
		3107	%vars = (_dummy => 0) unless %vars;
1821		3108
1822	local $_;	3109	local $_;
1823	local @safe::cf::_safe_eval_args = values %vars;	3110	local @safe::cf::_safe_eval_args = values %vars;
1824		3111
1825	my $eval =	3112	my $eval =
…		…
1868	=back	3155	=back
1869		3156
1870	=cut	3157	=cut
1871		3158
1872	#############################################################################	3159	#############################################################################
		3160	# the server's init and main functions
1873		3161
1874	=head2 EXTENSION DATABASE SUPPORT	3162	sub load_facedata($) {
		3163	my ($path) = @_;
1875		3164
1876	Crossfire maintains a very simple database for extension use. It can	3165	# HACK to clear player env face cache, we need some signal framework
1877	currently store anything that can be serialised using Storable, which	3166	# for this (global event?)
1878	excludes objects.	3167	%ext::player_env::MUSIC_FACE_CACHE = ();
1879		3168
1880	The parameter C<$family> should best start with the name of the extension	3169	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1881	using it, it should be unique.
1882		3170
1883	=over 4	3171	warn "loading facedata from $path\n";
1884		3172
1885	=item $hashref = cf::db_get $family	3173	my $facedata;
		3174	0 < aio_load $path, $facedata
		3175	or die "$path: $!";
1886		3176
1887	Return a hashref for use by the extension C<$family>, which can be	3177	$facedata = Coro::Storable::thaw $facedata;
1888	modified. After modifications, you have to call C<cf::db_dirty> or
1889	C<cf::db_sync>.
1890		3178
1891	=item $value = cf::db_get $family => $key	3179	$facedata->{version} == 2
		3180	or cf::cleanup "$path: version mismatch, cannot proceed.";
1892		3181
1893	Returns a single value from the database	3182	# patch in the exptable
1894		3183	$facedata->{resource}{"res/exp_table"} = {
1895	=item cf::db_put $family => $hashref	3184	type => FT_RSRC,
1896		3185	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900	=item cf::db_put $family => $key => $value
1901
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912
1913	=cut
1914
1915	our $DB;
1916
1917	{
1918	my $path = cf::localdir . "/database.pst";
1919
1920	sub db_load() {
1921	$DB = stat $path ? Storable::retrieve $path : { };
1922	}
1923
1924	my $pid;
1925
1926	sub db_save() {
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	3186	};
		3187	cf::cede_to_tick;
1946		3188
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3189	{
		3190	my $faces = $facedata->{faceinfo};
1951		3191
1952	sub db_get($;$) {	3192	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3193	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		3194
1958	sub db_put($$;$) {	3195	cf::face::set_visibility $idx, $info->{visibility};
1959	if (@_ >= 3) {	3196	cf::face::set_magicmap $idx, $info->{magicmap};
1960	$DB->{$_[0]}{$_[1]} = $_[2];	3197	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1961	} else {	3198	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966		3199
1967	cf::global->attach (	3200	cf::cede_to_tick;
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3201	}
1972	);
1973	}
1974		3202
1975	#############################################################################	3203	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3204	next unless $info->{smooth};
1977		3205
1978	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 {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3348	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3349	or return;
1981		3350
1982	local $/;	3351	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3352	*CFG = YAML::Load <$fh>;
		3353
		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};
		3358
		3359	if (exists $CFG{mlockall}) {
		3360	eval {
		3361	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3362	and die "WARNING: m(un)lockall failed: $!\n";
		3363	};
		3364	warn $@ if $@;
		3365	}
		3366	}
		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 $$;
1984	}	3385	}
1985		3386
1986	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
1987	# we must not ever block the main coroutine	3402	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3403	local $Coro::idle = sub {
1989	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#
1990	(Coro::unblock_sub {	3405	(async {
1991	Event::one_event;	3406	$Coro::current->{desc} = "IDLE BUG HANDLER";
1992	})->();	3407	EV::loop EV::LOOP_ONESHOT;
		3408	})->prio (Coro::PRIO_MAX);
1993	};	3409	};
1994		3410
1995	cfg_load;	3411	evthread_start IO::AIO::poll_fileno;
1996	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
1997	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
1998	Event::loop;	3439	EV::loop;
1999	}	3440	}
2000		3441
2001	#############################################################################	3442	#############################################################################
2002	# initialisation	3443	# initialisation and cleanup
2003		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 $pkg\n";#d#
		3623	}
		3624
2004	sub reload() {	3625	sub do_reload_perl() {
2005	# can/must only be called in main	3626	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3627	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	3628	warn "can only reload from main coroutine";
2008	return;	3629	return;
2009	}	3630	}
2010		3631
		3632	return if $RELOAD++;
		3633
		3634	my $t1 = EV::time;
		3635
		3636	while ($RELOAD) {
2011	warn "reloading...";	3637	warn "reloading...";
2012		3638
2013	local $FREEZE = 1;	3639	warn "entering sync_job";
		3640
		3641	cf::sync_job {
		3642	cf::write_runtime_sync; # external watchdog should not bark
2014	cf::emergency_save;	3643	cf::emergency_save;
		3644	cf::write_runtime_sync; # external watchdog should not bark
2015		3645
2016	eval {	3646	warn "syncing database to disk";
		3647	BDB::db_env_txn_checkpoint $DB_ENV;
		3648
2017	# 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
2018		3650
2019	# cancel all watchers	3651	warn "flushing outstanding aio requests";
2020	for (Event::all_watchers) {	3652	while (IO::AIO::nreqs || BDB::nreqs) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	3653	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2022	}
2023
2024	# cancel all extension coros
2025	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();
2027
2028	# unload all extensions
2029	for (@exts) {
2030	warn "unloading <$_>";
2031	unload_extension $_;
2032	}
2033
2034	# unload all modules loaded from $LIBDIR
2035	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037
2038	warn "removing <$k>";
2039	delete $INC{$k};
2040
2041	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;
2043
2044	if (my $cb = $k->can ("unload_module")) {
2045	$cb->();
2046	}	3654	}
2047		3655
2048	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;
2049	}	3680	}
2050		3681
2051	# sync database to disk	3682	warn "unloading all perl modules loaded from $LIBDIR";
2052	cf::db_sync;	3683	while (my ($k, $v) = each %INC) {
2053	IO::AIO::flush;	3684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2054		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 $k;
		3697	}
		3698
2055	# get rid of safe::, as good as possible	3699	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3700	clear_package "safe::$_"
2057	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);
2058		3702
2059	# remove register_script_function callbacks	3703	warn "unloading cf.pm \"a bit\"";
2060	# TODO
2061
2062	# unload cf.pm "a bit"
2063	delete $INC{"cf.pm"};	3704	delete $INC{"cf.pm"};
		3705	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2064		3706
2065	# don't, removes xs symbols, too,	3707	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3708	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3709	#clear_package __PACKAGE__;
2068		3710
2069	# reload cf.pm	3711	warn "unload completed, starting to reload now";
		3712
2070	warn "reloading cf.pm";	3713	warn "reloading cf.pm";
2071	require cf;	3714	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		3716
2074	# load config and database again	3717	warn "loading config and database again";
2075	cf::cfg_load;	3718	cf::reload_config;
2076	cf::db_load;
2077		3719
2078	# load extensions
2079	warn "load extensions";	3720	warn "loading extensions";
2080	cf::load_extensions;	3721	cf::load_extensions;
2081		3722
2082	# 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 $@;
		3740	cf::cleanup "error while reloading, exiting.";
		3741	};
		3742
2083	warn "reattach";	3743	warn "reloaded";
2084	_global_reattach;	3744	--$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 $RELOAD_WATCHER;
		3763	};
2085	};	3764	};
2086
2087	if ($@) {
2088	warn $@;
2089	warn "error while reloading, exiting.";
2090	exit 1;
2091	}
2092
2093	warn "reloaded successfully";
2094	};
2095
2096	#############################################################################
2097
2098	unless ($LINK_MAP) {
2099	$LINK_MAP = cf::map::new;
2100
2101	$LINK_MAP->width (41);
2102	$LINK_MAP->height (41);
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,
2111	cb => sub {
2112	$_[0]->w->cancel;
2113
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});
2132
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3765	}
2138
2139	register "<global>", __PACKAGE__;
2140		3766
2141	register_command "reload" => sub {	3767	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3768	my ($who, $arg) = @_;
2143		3769
2144	if ($who->flag (FLAG_WIZ)) {	3770	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3771	$who->message ("reloading server.");
		3772	async {
		3773	$Coro::current->{desc} = "perl_reload";
		3774	reload_perl;
		3775	};
2148	}	3776	}
2149	};	3777	};
2150		3778
2151	unshift @INC, $LIBDIR;	3779	unshift @INC, $LIBDIR;
2152		3780
2153	$TICK_WATCHER = Event->timer (	3781	my $bug_warning = 0;
2154	reentrant => 0,	3782
2155	prio => 0,	3783	our @WAIT_FOR_TICK;
2156	at => $NEXT_TICK || $TICK,	3784	our @WAIT_FOR_TICK_BEGIN;
2157	data => WF_AUTOCANCEL,	3785
2158	cb => sub {	3786	sub wait_for_tick {
2159	unless ($FREEZE) {	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
2160	cf::server_tick; # one server iteration	3809	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;
2162	}
2163		3810
2164	$NEXT_TICK += $TICK;	3811	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2165		3812	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2166	# if we are delayed by four ticks or more, skip them all	3813	Coro::async_pool {
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3814	$Coro::current->{desc} = "runtime saver";
2168
2169	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;
2171	},
2172	);
2173
2174	IO::AIO::max_poll_time $TICK * 0.2;
2175
2176	Event->io (
2177	fd => IO::AIO::poll_fileno,
2178	poll => 'r',
2179	prio => 5,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,
2186	after => 0,
2187	interval => 10,
2188	cb => sub {
2189	(Coro::unblock_sub {
2190	write_runtime	3815	write_runtime_sync
2191	or warn "ERROR: unable to write runtime file: $!";	3816	or warn "ERROR: unable to write runtime file: $!";
2192	})->();	3817	};
2193	},	3818	}
2194	);	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;
		3933
		3934	END { cf::emergency_save }
2195		3935
2196	1	3936	1
2197		3937

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