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Revision 1.166 by root, Sat Jan 13 23:06:13 2007 UTC vs.
Revision 1.528 by root, Fri Apr 23 04:42:12 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# 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 Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	121	our $NEXT_TICK;
50	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
51		130
52	our %CFG;	131	our %CFG;
53		132
54	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
56		136
57	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		140
65	# used to convert map paths into valid unix filenames by replacing / by ∕	141	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
		153
68	binmode STDOUT;	154	binmode STDOUT;
69	binmode STDERR;	155	binmode STDERR;
70		156
71	# read virtual server time, if available	157	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
76	}	162	}
77		163
78	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	165
80	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		168
84	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
85		187
86	#############################################################################	188	#############################################################################
87		189
88	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
89		191
…		…
96	=item $cf::RUNTIME	198	=item $cf::RUNTIME
97		199
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	201	every server tick.
100		202
101	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		206
103	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
105		211
106	=item $cf::NOW	212	=item $cf::NOW
107		213
108	The time of the last (current) server tick.	214	The time of the last (current) server tick.
109		215
110	=item $cf::TICK	216	=item $cf::TICK
111		217
112	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
113		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
114	=item %cf::CFG	230	=item %cf::CFG
115		231
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	233	from wherever your confdir points to.
118		234
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		236
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	238	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
125		252
126	=back	253	=back
127		254
128	=cut	255	=cut
129		256
130	BEGIN {	257	$Coro::State::WARNHOOK = sub {
131	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	258	my $msg = join "", @_;
133	utf8::encode $msg;
134		259
135	$msg .= "\n"	260	$msg .= "\n"
136	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
137		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
138	LOG llevError, $msg;	265	LOG llevError, $msg;
139	};	266	};
140	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
141		281
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		289
149	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	291	# within the Safe compartment.
151	for my $pkg (qw(	292	for my $pkg (qw(
152	cf::global cf::attachable	293	cf::global cf::attachable
153	cf::object cf::object::player	294	cf::object cf::object::player
154	cf::client cf::player	295	cf::client cf::player
155	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
156	cf::map cf::party cf::region	298	cf::party cf::region
157	)) {	299	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	301	}
161		302
162	$Event::DIED = sub {	303	$EV::DIED = sub {
163	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
164	};	305	};
		306
		307	#############################################################################
165		308
166	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
167		310
168	=over 4	311	=over 4
169		312
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	332	$d
190	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
191	}	334	}
192		335
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
196		337
197	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
198		339
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
207		341
208	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
209		343
210	=cut	344	=cut
211		345
212	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
214	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
215	}	363	}
216		364
217	=item cf::lock_wait $string	365	=item cf::lock_wait $string
218		366
219	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
220		368
221	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
222		370
223	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
226	returned.	374	returned.
227		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
228	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
230		381
231	=cut	382	=item $locked = cf::lock_active $string
232		383
233	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
234		389
235	sub lock_wait($) {	390	sub lock_wait($) {
236	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	392	}
244		393
245	sub lock_acquire($) {	394	sub lock_acquire($) {
246	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
247		397
248	# wait, to be sure we are not locked	398	sub lock_active($) {
249	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	400	}
258		401
259	sub freeze_mainloop {	402	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
261		404
262	my $guard = Coro::guard { $TICK_WATCHER->start };	405	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	406	}
264	$guard	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
		472	}
		473	};
		474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
265	}	488	}
266		489
267	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
268		491
269	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		497
275	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
276		499
277	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
278		501
279	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
282		506
283	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
286	fast or be very important.	510	fast or be very important.
…		…
289		513
290	sub sync_job(&) {	514	sub sync_job(&) {
291	my ($job) = @_;	515	my ($job) = @_;
292		516
293	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
294	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
296		522
297	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	524
299	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
300		526
301	my $busy = 1;	527	my $busy = 1;
302	my @res;	528	my @res;
303		529
304	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	532	@res = eval { $job->() };
306	warn $@ if $@;	533	warn $@ if $@;
307	undef $busy;	534	undef $busy;
308	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
309		536
310	while ($busy) {	537	while ($busy) {
311	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
312	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
313		548
314	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
315	} else {	550	} else {
316	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
317		552
…		…
337	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
338		573
339	$coro	574	$coro
340	}	575	}
341		576
342	sub write_runtime {	577	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		578
345	my $runtime = cf::localdir . "/runtime";	579	Executes the given code block with the given arguments in a seperate
		580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
346		583
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	584	=cut
348	or return;
349		585
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	586	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	587	my ($cb, @args) = @_;
352	and return;
353		588
354	aio_fsync $fh	589	# we seemingly have to make a local copy of the whole thing,
355	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
356		592
357	close $fh	593	my @res = Coro::Util::fork_eval {
358	or return;	594	reset_signals;
		595	&$cb
		596	}, @args;
359		597
360	aio_rename "$runtime~", $runtime	598	wantarray ? @res : $res[-1]
361	and return;	599	}
362		600
		601	sub objinfo {
363	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	775	}
365		776
366	=back	777	=back
367		778
368	=cut	779	=cut
369		780
370	#############################################################################	781	#############################################################################
371		782
372	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
373		784
374	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
377		788
378	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	791	Deliantra).
381		792
382	=over 4	793	=over 4
383		794
384	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
385		796
…		…
429	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
430		841
431	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
433		844
434	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
436		847
437	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
438		849
439	=over 4	850	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	911	our @CB_MAP = ();
501		912
502	my %attachment;	913	my %attachment;
503		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
504	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
506		923
507	use sort 'stable';	924	use sort 'stable';
508		925
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
543		960
544	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		965
549	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	967	my $pkg = shift @arg;
551		968
552	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
582	}	999	}
583		1000
584	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
585	} else {	1002	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	1004	}
588		1005
589	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
590	}	1007	}
591		1008
…		…
593	if (ref $_[0]) {	1010	if (ref $_[0]) {
594	_object_attach @_;	1011	_object_attach @_;
595	} else {	1012	} else {
596	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
597	}	1014	}
		1015	_recalc_want;
598	};	1016	};
599		1017
600	# all those should be optimised	1018	# all those should be optimised
601	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
606	reattach ($obj);	1024	reattach ($obj);
607	} else {	1025	} else {
608	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
609	}	1027	}
		1028	_recalc_want;
610	};	1029	};
611		1030
612	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
614		1033
…		…
629	";	1048	";
630	die if $@;	1049	die if $@;
631	}	1050	}
632		1051
633	our $override;	1052	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1054
636	sub override {	1055	sub override {
637	$override = 1;	1056	$override = 1;
638	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
639	}	1058	}
640		1059
641	sub do_invoke {	1060	sub do_invoke {
642	my $event = shift;	1061	my $event = shift;
643	my $callbacks = shift;	1062	my $callbacks = shift;
644		1063
645	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
646		1065
647	local $override;	1066	local $override;
648		1067
649	for (@$callbacks) {	1068	for (@$callbacks) {
650	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
659	}	1078	}
660		1079
661	0	1080	0
662	}	1081	}
663		1082
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1084
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1086
668	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
669		1088
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1092
674	=back	1093	=back
675		1094
676	=cut	1095	=cut
677		1096
678	#############################################################################	1097	#############################################################################
679	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
680		1141
681	sub reattach {	1142	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1144	my ($obj) = @_;
		1145
		1146	# no longer needed after getting rid of delete_package?
		1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1148
685	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
686		1150
687	@$registry = ();	1151	@$registry = ();
688		1152
…		…
703	cf::attachable->attach (	1167	cf::attachable->attach (
704	prio => -1000000,	1168	prio => -1000000,
705	on_instantiate => sub {	1169	on_instantiate => sub {
706	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
707		1171
708	$data = from_json $data;	1172	$data = decode_json $data;
709		1173
710	for (@$data) {	1174	for (@$data) {
711	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
712		1176
713	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1193	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
731		1195
732	sync_job {	1196	sync_job {
733	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
736		1202
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
740	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
741	close $fh;	1210	aio_close $fh;
742		1211
743	if (@$objs) {	1212	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
748	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
749	close $fh;	1221	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
751	}	1223	}
752	} else {	1224	} else {
753	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
754	}	1226	}
755		1227
756	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1232	} else {
758	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
759	}	1234	}
760	} else {	1235	} else {
761	aio_unlink $filename;	1236	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
763	}	1238	}
764	}	1239	};
765	}	1240	}
766		1241
767	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
769		1244
…		…
781	or return;	1256	or return;
782		1257
783	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
785	or return;	1260	or return;
		1261
786	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
787	}	1264	}
788		1265
		1266	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
791	return ($data, $av);	1271	($data, $av)
792	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
793		1279
794	#############################################################################	1280	#############################################################################
795	# command handling &c	1281	# command handling &c
796		1282
797	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1297	}
812		1298
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1300
815	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
816		1306
817	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
818	called.	1308	called.
819		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
820	=cut	1321	=cut
821		1322
822	sub register_extcmd {	1323	sub register_extcmd {
823	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
824		1325
825	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
826	}	1327	}
827		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
828	cf::player->attach (	1337	cf::player->attach (
829	on_command => sub {	1338	on_unknown_command => sub {
830	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
831		1340
832	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
833	or return;	1342	or return;
834		1343
…		…
839	cf::override;	1348	cf::override;
840	},	1349	},
841	on_extcmd => sub {	1350	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
843		1352
844	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1354
846	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
852	} else {	1370	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1372	}
855		1373
856	cf::override;	1374	cf::override;
857	},	1375	},
858	);	1376	);
859		1377
		1378	# "readahead" all extensions
860	sub load_extension {	1379	sub cache_extensions {
861	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
862		1381
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1385	}
888	die $@;
889	}	1386	};
890		1387
891	push @EXTS, $pkg;	1388	$grp
892	}	1389	}
893		1390
894	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
895	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1396	next unless -r $path;
897	eval {	1397
898	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
899	1	1461	}
900	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
901	}	1472	};
902	}	1473	}
903		1474
904	#############################################################################	1475	#############################################################################
905	# load/save/clean perl data associated with a map
906		1476
907	*cf::mapsupport::on_clean = sub {	1477	=back
908	my ($map) = @_;
909
910	my $path = $map->tmpname;
911	defined $path or return;
912
913	unlink "$path.pst";
914	};
915
916	cf::map->attach (prio => -10000, package => cf::mapsupport::);
917
918	#############################################################################
919		1478
920	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
921		1480
922	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
923		1482
924	=cut	1483	=cut
925		1484
926	package cf::player;	1485	package cf::player;
927		1486
…		…
929		1488
930	=head3 cf::player	1489	=head3 cf::player
931		1490
932	=over 4	1491	=over 4
933		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
934	=item cf::player::find $login	1507	=item cf::player::find $login
935		1508
936	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
937		1510
938	=cut	1511	=cut
939		1512
940	sub playerdir($) {	1513	sub playerdir($) {
941	cf::localdir	1514	"$PLAYERDIR/"
942	. "/"
943	. cf::playerdir
944	. "/"
945	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
946	}	1516	}
947		1517
948	sub path($) {	1518	sub path($) {
949	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
950		1520
951	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
952	}	1522	}
953		1523
954	sub find_active($) {	1524	sub find_active($) {
955	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
956	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
959		1529
960	sub exists($) {	1530	sub exists($) {
961	my ($login) = @_;	1531	my ($login) = @_;
962		1532
963	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
964	or cf::sync_job { !aio_stat $login }	1534	or !aio_stat path $login
965	}	1535	}
966		1536
967	sub find($) {	1537	sub find($) {
968	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
969	my $login = $_[0];	1539	my $login = $_[0];
970		1540
971	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
972		1542
973	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
974	my $pl = load_pl path $login	1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
975	or return;	1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
976	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
977	}	1560	}
978	}	1561	}
979	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
980		1576
981	sub save($) {	1577	sub save($) {
982	my ($pl) = @_;	1578	my ($pl) = @_;
983		1579
984	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
989	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
990		1586
991	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
992	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
993		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
994	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
995	Coro::cede;	1596	cf::cede_to_tick;
996	}	1597	}
997		1598
998	sub new($) {	1599	sub new($) {
999	my ($login) = @_;	1600	my ($login) = @_;
1000		1601
…		…
1006	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1007		1608
1008	$self	1609	$self
1009	}	1610	}
1010		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
1011	=item $pl->quit_character	1622	=item $pl->quit_character
1012		1623
1013	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1014	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1015		1626
1016	=cut	1627	=cut
1017		1628
1018	sub quit_character {	1629	sub quit_character {
1019	my ($pl) = @_;	1630	my ($pl) = @_;
1020		1631
		1632	my $name = $pl->ob->name;
		1633
1021	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1022	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1023		1636
1024	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1025	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
1026	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1027	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1028		1643
1029	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1030	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
1031	aio_rename $path, $temp;	1646	aio_rename $path, $temp;
1032	delete $cf::PLAYER{$pl->ob->name};	1647	delete $cf::PLAYER{$pl->ob->name};
1033	$pl->destroy;	1648	$pl->destroy;
		1649
		1650	my $prefix = qr<^~\Q$name\E/>;
		1651
		1652	# nuke player maps
		1653	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1654
1034	IO::AIO::aio_rmtree $temp;	1655	IO::AIO::aio_rmtree $temp;
		1656	}
		1657
		1658	=item $pl->kick
		1659
		1660	Kicks a player out of the game. This destroys the connection.
		1661
		1662	=cut
		1663
		1664	sub kick {
		1665	my ($pl, $kicker) = @_;
		1666
		1667	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1668	$pl->killer ("kicked");
		1669	$pl->ns->destroy;
1035	}	1670	}
1036		1671
1037	=item cf::player::list_logins	1672	=item cf::player::list_logins
1038		1673
1039	Returns am arrayref of all valid playernames in the system, can take a	1674	Returns am arrayref of all valid playernames in the system, can take a
1040	while and may block, so not sync_job-capable, ever.	1675	while and may block, so not sync_job-capable, ever.
1041		1676
1042	=cut	1677	=cut
1043		1678
1044	sub list_logins {	1679	sub list_logins {
1045	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1680	my $dirs = aio_readdir $PLAYERDIR
1046	or return [];	1681	or return [];
1047		1682
1048	my @logins;	1683	my @logins;
1049		1684
1050	for my $login (@$dirs) {	1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
1051	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1052	aio_read $fh, 0, 512, my $buf, 0 or next;	1692	aio_read $fh, 0, 512, my $buf, 0 or next;
1053	$buf !~ /^password -------------$/m or next; # official not-valid tag	1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
1054		1695
1055	utf8::decode $login;	1696	utf8::decode $login;
1056	push @logins, $login;	1697	push @logins, $login;
1057	}	1698	}
1058		1699
1059	\@logins	1700	\@logins
1060	}	1701	}
1061		1702
1062	=item $player->maps	1703	=item $player->maps
1063		1704
		1705	=item cf::player::maps $login
		1706
1064	Returns an arrayref of map paths that are private for this	1707	Returns an arrayref of map paths that are private for this
1065	player. May block.	1708	player. May block.
1066		1709
1067	=cut	1710	=cut
1068		1711
1069	sub maps($) {	1712	sub maps($) {
1070	my ($pl) = @_;	1713	my ($pl) = @_;
		1714
		1715	$pl = ref $pl ? $pl->ob->name : $pl;
1071		1716
1072	my $files = aio_readdir playerdir $pl	1717	my $files = aio_readdir playerdir $pl
1073	or return;	1718	or return;
1074		1719
1075	my @paths;	1720	my @paths;
…		…
1077	for (@$files) {	1722	for (@$files) {
1078	utf8::decode $_;	1723	utf8::decode $_;
1079	next if /\.(?:pl|pst)$/;	1724	next if /\.(?:pl|pst)$/;
1080	next unless /^$PATH_SEP/o;	1725	next unless /^$PATH_SEP/o;
1081		1726
1082	push @paths, "~" . $pl->ob->name . "/" . $_;	1727	push @paths, cf::map::normalise "~$pl/$_";
1083	}	1728	}
1084		1729
1085	\@paths	1730	\@paths
1086	}	1731	}
1087		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
1088	=item $player->ext_reply ($msgid, $msgtype, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1089		1738
1090	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1091		1740
1092	=cut	1741	=cut
1093		1742
1094	sub ext_reply($$$%) {	1743	sub ext_reply($$@) {
1095	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1096		1745
1097	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1098
1099	$self->send ("ext " . cf::to_json \%msg);
1100	}	1747	}
1101		1748
1102	package cf;	1749	=item $player->ext_msg ($type, @msg)
		1750
		1751	Sends an ext event to the client.
		1752
		1753	=cut
		1754
		1755	sub ext_msg($$@) {
		1756	my ($self, $type, @msg) = @_;
		1757
		1758	$self->ns->ext_msg ($type, @msg);
		1759	}
		1760
		1761	=head3 cf::region
		1762
		1763	=over 4
		1764
		1765	=cut
		1766
		1767	package cf::region;
		1768
		1769	=item cf::region::find_by_path $path
		1770
		1771	Tries to decuce the likely region for a map knowing only its path.
		1772
		1773	=cut
		1774
		1775	sub find_by_path($) {
		1776	my ($path) = @_;
		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
		1780	my ($match, $specificity);
		1781
		1782	for my $region (list) {
		1783	if ($region->{match} && $path =~ $region->{match}) {
		1784	($match, $specificity) = ($region, $region->specificity)
		1785	if $region->specificity > $specificity;
		1786	}
		1787	}
		1788
		1789	$match
		1790	}
1103		1791
1104	=back	1792	=back
1105
1106		1793
1107	=head3 cf::map	1794	=head3 cf::map
1108		1795
1109	=over 4	1796	=over 4
1110		1797
…		…
1114		1801
1115	use Fcntl;	1802	use Fcntl;
1116	use Coro::AIO;	1803	use Coro::AIO;
1117		1804
1118	use overload	1805	use overload
1119	'""' => \&as_string;	1806	'""' => \&as_string,
		1807	fallback => 1;
1120		1808
1121	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1123		1811
1124	sub generate_random_map {	1812	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1126		1816
1127	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1128	$self->_create_random_map (	1818	$self->_create_random_map (
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1132	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1133	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1134	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1135	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1828	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}	1829	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)	1830	)
1141	}	1831	}
1142		1832
		1833	=item cf::map->register ($regex, $prio)
		1834
		1835	Register a handler for the map path matching the given regex at the
		1836	givne priority (higher is better, built-in handlers have priority 0, the
		1837	default).
		1838
		1839	=cut
		1840
1143	sub register {	1841	sub register {
1144	my (undef, $regex) = @_;	1842	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1843	my $pkg = caller;
1146		1844
1147	no strict;	1845	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1846	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1847
1150	$EXT_MAP{$pkg} = qr<$regex>;	1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1849	}
1152		1850
1153	# also paths starting with '/'	1851	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1853
		1854	sub thawer_merge {
		1855	my ($self, $merge) = @_;
		1856
		1857	# we have to keep some variables in memory intact
		1858	local $self->{path};
		1859	local $self->{load_path};
		1860
		1861	$self->SUPER::thawer_merge ($merge);
		1862	}
1155		1863
1156	sub normalise {	1864	sub normalise {
1157	my ($path, $base) = @_;	1865	my ($path, $base) = @_;
		1866
		1867	$path = "$path"; # make sure its a string
		1868
		1869	$path =~ s/\.map$//;
1158		1870
1159	# map plan:	1871	# map plan:
1160	#	1872	#
1161	# /! non-realised random map exit (special hack!)	1873	# /! non-realised random map exit (special hack!)
1162	# {... are special paths that are not being touched	1874	# {... are special paths that are not being touched
…		…
1190		1902
1191	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1903	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1192		1904
1193	$path = normalise $path, $base;	1905	$path = normalise $path, $base;
1194		1906
1195	for my $pkg (keys %EXT_MAP) {	1907	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1196	if ($path =~ $EXT_MAP{$pkg}) {	1908	if ($path =~ $EXT_MAP{$pkg}[1]) {
1197	my $self = bless cf::map::new, $pkg;	1909	my $self = bless cf::map::new, $pkg;
1198	$self->{path} = $path; $self->path ($path);	1910	$self->{path} = $path; $self->path ($path);
1199	$self->init; # pass $1 etc.	1911	$self->init; # pass $1 etc.
1200	return $self;	1912	return $self;
1201	}	1913	}
1202	}	1914	}
1203		1915
1204	Carp::carp "unable to resolve path '$path'.";	1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
1205	()	1917	()
1206	}	1918	}
1207		1919
1208	sub init {	1920	sub init {
1209	my ($self) = @_;	1921	my ($self) = @_;
…		…
1220	# the displayed name, this is a one way mapping	1932	# the displayed name, this is a one way mapping
1221	sub visible_name {	1933	sub visible_name {
1222	&as_string	1934	&as_string
1223	}	1935	}
1224		1936
1225	# escape the /'s in the path
1226	sub _escaped_path {
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228
1229	$path
1230	}
1231
1232	# the original (read-only) location	1937	# the original (read-only) location
1233	sub load_path {	1938	sub load_path {
1234	my ($self) = @_;	1939	my ($self) = @_;
1235		1940
1236	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1941	"$MAPDIR/$self->{path}.map"
1237	}	1942	}
1238		1943
1239	# the temporary/swap location	1944	# the temporary/swap location
1240	sub save_path {	1945	sub save_path {
1241	my ($self) = @_;	1946	my ($self) = @_;
1242		1947
1243	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $self->_escaped_path	1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1949	"$TMPDIR/$path.map"
1244	}	1950	}
1245		1951
1246	# the unique path, undef == no special unique path	1952	# the unique path, undef == no special unique path
1247	sub uniq_path {	1953	sub uniq_path {
1248	my ($self) = @_;	1954	my ($self) = @_;
1249		1955
1250	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1957	"$UNIQUEDIR/$path"
1251	}	1958	}
1252		1959
1253	# and all this just because we cannot iterate over	1960	sub decay_objects {
1254	# all maps in C++...
1255	sub change_all_map_light {
1256	my ($change) = @_;	1961	my ($self) = @_;
1257		1962
1258	$_->change_map_light ($change)	1963	return if $self->{deny_reset};
1259	for grep $_->outdoor, values %cf::MAP;	1964
		1965	$self->do_decay_objects;
1260	}	1966	}
1261		1967
1262	sub unlink_save {	1968	sub unlink_save {
1263	my ($self) = @_;	1969	my ($self) = @_;
1264		1970
1265	utf8::encode (my $save = $self->save_path);	1971	utf8::encode (my $save = $self->save_path);
1266	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1267	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1973	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1268	}	1974	}
1269		1975
1270	sub load_header_from($) {	1976	sub load_header_from($) {
1271	my ($self, $path) = @_;	1977	my ($self, $path) = @_;
1272		1978
1273	utf8::encode $path;	1979	utf8::encode $path;
1274	aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1275	or return;	1981	or return;
1276		1982
1277	$self->_load_header ($path)	1983	$self->_load_header ($f)
1278	or return;	1984	or return;
1279		1985
		1986	local $MAP_LOADING{$self->{path}} = $self;
		1987	$f->resolve_delayed_derefs;
		1988
1280	$self->{load_path} = $path;	1989	$self->{load_path} = $path;
1281		1990
1282	1	1991	1
1283	}	1992	}
1284		1993
1285	sub load_orig {	1994	sub load_header_orig {
1286	my ($self) = @_;	1995	my ($self) = @_;
1287		1996
1288	$self->load_header_from ($self->load_path)	1997	$self->load_header_from ($self->load_path)
1289	}	1998	}
1290		1999
1291	sub load_temp {	2000	sub load_header_temp {
1292	my ($self) = @_;	2001	my ($self) = @_;
1293		2002
1294	$self->load_header_from ($self->save_path)	2003	$self->load_header_from ($self->save_path)
		2004	}
		2005
		2006	sub prepare_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->last_access ((delete $self->{last_access})
		2010	|| $cf::RUNTIME); #d#
		2011	# safety
		2012	$self->{instantiate_time} = $cf::RUNTIME
		2013	if $self->{instantiate_time} > $cf::RUNTIME;
		2014	}
		2015
		2016	sub prepare_orig {
		2017	my ($self) = @_;
		2018
		2019	$self->{load_original} = 1;
		2020	$self->{instantiate_time} = $cf::RUNTIME;
		2021	$self->last_access ($cf::RUNTIME);
		2022	$self->instantiate;
1295	}	2023	}
1296		2024
1297	sub load_header {	2025	sub load_header {
1298	my ($self) = @_;	2026	my ($self) = @_;
1299		2027
1300	if ($self->load_temp) {	2028	if ($self->load_header_temp) {
1301	$self->last_access ((delete $self->{last_access})	2029	$self->prepare_temp;
1302	|| $cf::RUNTIME); #d#
1303	# safety
1304	$self->{instantiate_time} = $cf::RUNTIME
1305	if $self->{instantiate_time} > $cf::RUNTIME;
1306	} else {	2030	} else {
1307	$self->load_orig	2031	$self->load_header_orig
1308	or return;	2032	or return;
1309		2033	$self->prepare_orig;
1310	$self->{load_original} = 1;
1311	$self->{instantiate_time} = $cf::RUNTIME;
1312	$self->last_access ($cf::RUNTIME);
1313	$self->instantiate;
1314	}	2034	}
		2035
		2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
		2038
		2039	$self->default_region (cf::region::find_by_path $self->{path})
		2040	unless $self->default_region;
1315		2041
1316	1	2042	1
1317	}	2043	}
1318		2044
1319	sub find;	2045	sub find;
1320	sub find {	2046	sub find {
1321	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1322		2048
1323	$path = normalise $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1324		2050
		2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1325	cf::lock_wait "map_find:$path";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1326		2053
1327	$cf::MAP{$path} || do {	2054	$cf::MAP{$path} || do {
1328	my $guard = cf::lock_acquire "map_find:$path";
1329	my $map = new_from_path cf::map $path	2055	my $map = new_from_path cf::map $path
1330	or return;	2056	or return;
1331		2057
1332	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1333		2059
1334	$map->load_header	2060	$map->load_header
1335	or return;	2061	or return;
1336		2062
1337	if ($map->should_reset) {	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2064	# doing this can freeze the server in a sync job, obviously
		2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1338	$map->reset;	2068	$map->reset;
1339	undef $guard;
1340	$map = find $path	2069	return find $path;
1341	or return;
1342	}	2070	}
1343		2071
1344	$cf::MAP{$path} = $map	2072	$cf::MAP{$path} = $map
1345	}	2073	}
1346	}	2074	}
		2075
		2076	sub pre_load { }
		2077	#sub post_load { } # XS
1347		2078
1348	sub load {	2079	sub load {
1349	my ($self) = @_;	2080	my ($self) = @_;
1350		2081
		2082	local $self->{deny_reset} = 1; # loading can take a long time
		2083
1351	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1352	my $guard = cf::lock_acquire "map_load:$path";	2087	my $guard = cf::lock_acquire "map_data:$path";
1353		2088
		2089	return unless $self->valid;
1354	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1355		2091
1356	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1357		2093
1358	$self->alloc;	2094	$self->alloc;
1359	$self->_load_objects ($self->{load_path}, 1)	2095
		2096	$self->pre_load;
		2097	cf::cede_to_tick;
		2098
		2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
		2101	$self->_load_objects ($f)
1360	or return;	2102	or return;
1361		2103
1362	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1363	if delete $self->{load_original};	2105	if delete $self->{load_original};
1364		2106
1365	if (my $uniq = $self->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1366	utf8::encode $uniq;	2108	utf8::encode $uniq;
1367	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1368	$self->clear_unique_items;	2111	$self->clear_unique_items;
1369	$self->_load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1370	}	2115	}
1371	}	2116	}
1372		2117
1373	Coro::cede;	2118	$f->resolve_delayed_derefs;
1374		2119
		2120	cf::cede_to_tick;
1375	# now do the right thing for maps	2121	# now do the right thing for maps
1376	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1377
1378	unless ($self->{deny_activate}) {
1379	$self->decay_objects;
1380	$self->fix_auto_apply;
1381	$self->update_buttons;
1382	Coro::cede;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2124	unless $self->difficulty;
1386	Coro::cede;	2125	cf::cede_to_tick;
		2126
		2127	unless ($self->{deny_activate}) {
		2128	$self->decay_objects;
		2129	$self->fix_auto_apply;
		2130	$self->update_buttons;
		2131	cf::cede_to_tick;
1387	$self->activate;	2132	$self->activate;
1388	}	2133	}
1389		2134
		2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
		2137
1390	$self->in_memory (cf::MAP_IN_MEMORY);	2138	$self->in_memory (cf::MAP_ACTIVE);
1391	}	2139	}
1392		2140
		2141	$self->post_load;
		2142	}
		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
1393	sub customise_for {	2147	sub customise_for {
1394	my ($self, $ob) = @_;	2148	my ($self, $ob) = @_;
1395		2149
1396	return find "~" . $ob->name . "/" . $self->{path}	2150	return find "~" . $ob->name . "/" . $self->{path}
1397	if $self->per_player;	2151	if $self->per_player;
1398		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
1399	$self	2156	$self
1400	}	2157	}
1401		2158
1402	# find and load all maps in the 3x3 area around a map	2159	# find and load all maps in the 3x3 area around a map
1403	sub load_diag {	2160	sub load_neighbours {
1404	my ($map) = @_;	2161	my ($map) = @_;
1405		2162
1406	my @diag; # diagonal neighbours	2163	my @neigh; # diagonal neighbours
1407		2164
1408	for (0 .. 3) {	2165	for (0 .. 3) {
1409	my $neigh = $map->tile_path ($_)	2166	my $neigh = $map->tile_path ($_)
1410	or next;	2167	or next;
1411	$neigh = find $neigh, $map	2168	$neigh = find $neigh, $map
1412	or next;	2169	or next;
1413	$neigh->load;	2170	$neigh->load;
1414		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
1415	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1416	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1417	}	2176	}
1418		2177
1419	for (@diag) {	2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
1420	my $neigh = find @$_	2180	my $neigh = find $path, $origin
1421	or next;	2181	or next;
1422	$neigh->load;	2182	$neigh->load;
1423	}	2183	}
1424	}	2184	}
1425		2185
…		…
1430	}	2190	}
1431		2191
1432	sub do_load_sync {	2192	sub do_load_sync {
1433	my ($map) = @_;	2193	my ($map) = @_;
1434		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1435	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
1436	}	2199	}
1437		2200
1438	our %MAP_PREFETCH;	2201	our %MAP_PREFETCH;
1439	our $MAP_PREFETCHER = Coro::async {	2202	our $MAP_PREFETCHER = undef;
1440	while () {
1441	for my $path (keys %MAP_PREFETCH) {
1442	my $map = find $path
1443	or next;
1444	$map->load;
1445
1446	delete $MAP_PREFETCH{$path};
1447	}
1448	Coro::schedule;
1449	}
1450	};
1451		2203
1452	sub find_async {	2204	sub find_async {
1453	my ($path, $origin) = @_;	2205	my ($path, $origin, $load) = @_;
1454		2206
1455	$path = normalise $path, $origin && $origin->{path};	2207	$path = normalise $path, $origin && $origin->{path};
1456		2208
1457	if (my $map = $cf::MAP{$path}) {	2209	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2211	}
		2212
		2213	$MAP_PREFETCH{$path} |= $load;
		2214
		2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
		2218	while (%MAP_PREFETCH) {
		2219	while (my ($k, $v) = each %MAP_PREFETCH) {
		2220	if (my $map = find $k) {
		2221	$map->load if $v;
		2222	}
		2223
		2224	delete $MAP_PREFETCH{$k};
		2225	}
		2226	}
		2227	undef $MAP_PREFETCHER;
1459	}	2228	};
1460
1461	$MAP_PREFETCH{$path} = 0;
1462	$MAP_PREFETCHER->ready;	2229	$MAP_PREFETCHER->prio (6);
1463		2230
1464	()	2231	()
1465	}	2232	}
1466		2233
		2234	# common code, used by both ->save and ->swapout
1467	sub save {	2235	sub _save {
1468	my ($self) = @_;	2236	my ($self) = @_;
1469
1470	my $lock = cf::lock_acquire "map_data:" . $self->path;
1471		2237
1472	$self->{last_save} = $cf::RUNTIME;	2238	$self->{last_save} = $cf::RUNTIME;
1473		2239
1474	return unless $self->dirty;	2240	return unless $self->dirty;
1475		2241
…		…
1481	return if $self->{deny_save};	2247	return if $self->{deny_save};
1482		2248
1483	local $self->{last_access} = $self->last_access;#d#	2249	local $self->{last_access} = $self->last_access;#d#
1484		2250
1485	cf::async {	2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
1486	$_->contr->save for $self->players;	2253	$_->contr->save for $self->players;
1487	};	2254	};
		2255
		2256	cf::get_slot 0.02;
1488		2257
1489	if ($uniq) {	2258	if ($uniq) {
1490	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1491	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1492	} else {	2261	} else {
1493	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1494	}	2263	}
1495	}	2264	}
1496		2265
		2266	sub save {
		2267	my ($self) = @_;
		2268
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	$self->_save;
		2272	}
		2273
1497	sub swap_out {	2274	sub swap_out {
1498	my ($self) = @_;	2275	my ($self) = @_;
1499		2276
1500	# save first because save cedes
1501	$self->save;
1502
1503	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1504		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1505	return if $self->players;	2281	return if $self->players;
1506	return if $self->in_memory != cf::MAP_IN_MEMORY;
1507	return if $self->{deny_save};
1508		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
		2289	$self->_save;
		2290
		2291	# then free the map
1509	$self->clear;	2292	$self->clear;
1510	$self->in_memory (cf::MAP_SWAPPED);
1511	}	2293	}
1512		2294
1513	sub reset_at {	2295	sub reset_at {
1514	my ($self) = @_;	2296	my ($self) = @_;
1515		2297
1516	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1517	return 1e99 if $self->isa ("ext::map_per_player");
1518	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1519		2300
1520	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1521	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1522		2303
…		…
1527	my ($self) = @_;	2308	my ($self) = @_;
1528		2309
1529	$self->reset_at <= $cf::RUNTIME	2310	$self->reset_at <= $cf::RUNTIME
1530	}	2311	}
1531		2312
1532	sub rename {
1533	my ($self, $new_path) = @_;
1534
1535	normalise $new_path;
1536
1537	$self->unlink_save;
1538
1539	delete $cf::MAP{$self->path};
1540	$self->{path} = $new_path; $self->path ($self->{path});
1541	$cf::MAP{$self->path} = $self;
1542
1543	$self->save;
1544	}
1545
1546	sub reset {	2313	sub reset {
1547	my ($self) = @_;	2314	my ($self) = @_;
1548		2315
1549	my $lock = cf::lock_acquire "map_data:" . $self->path;	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1550		2317
1551	return if $self->players;	2318	return if $self->players;
1552	return if $self->isa ("ext::map_per_player");#d#
1553		2319
1554	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
		2321
		2322	$self->in_memory (cf::MAP_SWAPPED);
		2323
		2324	# need to save uniques path
		2325	unless ($self->{deny_save}) {
		2326	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2327
		2328	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2329	if $uniq;
		2330	}
1555		2331
1556	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1557		2333
		2334	$self->deactivate;
1558	$_->clear_links_to ($self) for values %cf::MAP;	2335	$_->clear_links_to ($self) for values %cf::MAP;
		2336	$self->clear;
1559		2337
1560	$self->unlink_save;	2338	$self->unlink_save;
1561	$self->destroy;	2339	$self->destroy;
1562	}	2340	}
1563		2341
1564	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1565		2343
1566	sub nuke {	2344	sub nuke {
1567	my ($self) = @_;	2345	my ($self) = @_;
1568		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
		2350	delete $cf::MAP{$self->path};
		2351
		2352	$self->unlink_save;
		2353
		2354	bless $self, "cf::map::wrap";
		2355	delete $self->{deny_reset};
1569	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1570	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1571	$self->rename ("{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2359
		2360	$cf::MAP{$self->path} = $self;
		2361	}
		2362
1572	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
		2364	}
		2365
		2366	=item $maps = cf::map::tmp_maps
		2367
		2368	Returns an arrayref with all map paths of currently instantiated and saved
		2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
		2374	[
		2375	map {
		2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item $maps = cf::map::random_maps
		2385
		2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
		2388
		2389	=cut
		2390
		2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
1573	}	2400	}
1574		2401
1575	=item cf::map::unique_maps	2402	=item cf::map::unique_maps
1576		2403
1577	Returns an arrayref of paths of all shared maps that have	2404	Returns an arrayref of paths of all shared maps that have
1578	instantiated unique items. May block.	2405	instantiated unique items. May block.
1579		2406
1580	=cut	2407	=cut
1581		2408
1582	sub unique_maps() {	2409	sub unique_maps() {
1583	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2410	[
1584	or return;	2411	map {
1585
1586	my @paths;
1587
1588	for (@$files) {
1589	utf8::decode $_;	2412	utf8::decode $_;
1590	next if /\.pst$/;	2413	s/\.map$//; # TODO future compatibility hack
1591	next unless /^$PATH_SEP/o;	2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1592		2415	? ()
1593	push @paths, $_;	2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
1594	}	2418	]
1595
1596	\@paths
1597	}	2419	}
1598		2420
1599	package cf;	2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
		2442	s/\.map$// or next;
		2443	utf8::decode $_;
		2444	push @maps, "$dir/$_";
		2445	}
		2446
		2447	push @dirs, map "$dir/$_", @$dirs;
		2448	}
		2449
		2450	\@maps
		2451	}
1600		2452
1601	=back	2453	=back
1602		2454
1603	=head3 cf::object	2455	=head3 cf::object
1604		2456
…		…
1608		2460
1609	=over 4	2461	=over 4
1610		2462
1611	=item $ob->inv_recursive	2463	=item $ob->inv_recursive
1612		2464
1613	Returns the inventory of the object _and_ their inventories, recursively.	2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
1614		2467
1615	=cut	2468	=cut
1616		2469
1617	sub inv_recursive_;	2470	sub inv_recursive_;
1618	sub inv_recursive_ {	2471	sub inv_recursive_ {
…		…
1621		2474
1622	sub inv_recursive {	2475	sub inv_recursive {
1623	inv_recursive_ inv $_[0]	2476	inv_recursive_ inv $_[0]
1624	}	2477	}
1625		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
		2505	}
		2506
1626	package cf;	2507	package cf;
1627		2508
1628	=back	2509	=back
1629		2510
1630	=head3 cf::object::player	2511	=head3 cf::object::player
…		…
1636	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1637	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1638	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1639		2520
1640	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1641		2536
1642	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1643	# with dialog boxes.	2538	# with dialog boxes.
1644	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1645	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1647		2542
1648	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1649		2544
1650	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1651	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1652	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1653	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1654	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1655	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1656	}	2570	}
1657		2571
1658	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1659		2573
1660	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1673		2587
1674	=item $player_object->enter_link	2588	=item $player_object->enter_link
1675		2589
1676	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1677		2591
1678	The player should be reasonably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1679	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
1680		2596
1681	Will never block.	2597	Will never block.
1682		2598
1683	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1684		2600
…		…
1692	=cut	2608	=cut
1693		2609
1694	sub link_map {	2610	sub link_map {
1695	unless ($LINK_MAP) {	2611	unless ($LINK_MAP) {
1696	$LINK_MAP = cf::map::find "{link}"	2612	$LINK_MAP = cf::map::find "{link}"
1697	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2613	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1698	$LINK_MAP->load;	2614	$LINK_MAP->load;
1699	}	2615	}
1700		2616
1701	$LINK_MAP	2617	$LINK_MAP
1702	}	2618	}
…		…
1704	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2621	my ($self) = @_;
1706		2622
1707	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1708		2624
		2625	++$self->{_link_recursion};
		2626
1709	return if UNIVERSAL::isa $self->map, "ext::map_link";	2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2628
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1713		2631
1714	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1715	}	2633	}
1716		2634
1717	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1719		2639
1720	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1721		2641
1722	unless ($map) {	2642	unless ($map) {
1723	# restore original map position	2643	# restore original map position
…		…
1734	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1735	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1736		2656
1737	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1740		2660
1741	$map->load;	2661	$map->load;
1742	$map->load_diag;	2662	$map->load_neighbours;
1743		2663
1744	return unless $self->contr->active;	2664	return unless $self->contr->active;
		2665
		2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2667	if ($self->enter_map ($map, $x, $y)) {
		2668	# entering was successful
		2669	delete $self->{_link_recursion};
		2670	# only activate afterwards, to support waiting in hooks
1745	$self->activate_recursive;	2671	$self->activate_recursive;
1746	$self->enter_map ($map, $x, $y);
1747	}
1748
1749	cf::player->attach (
1750	on_logout => sub {
1751	my ($pl) = @_;
1752
1753	# abort map switching before logout
1754	if ($pl->ob->{_link_pos}) {
1755	cf::sync_job {
1756	$pl->ob->leave_link
1757	};
1758	}
1759	},	2672	}
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2673
1763	# try to abort aborted map switching on player login :)	2674	}
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780		2675
1781	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1782		2677
		2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
1783	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1784		2690
1785	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1787		2702
1788	$self->enter_link;	2703	$self->enter_link;
1789		2704
1790	(async {	2705	(async {
1791	my $map = cf::map::find $path;	2706	$Coro::current->{desc} = "player::goto $path $x $y";
		2707
		2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
		2727	my $map = eval {
		2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1792	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
1793		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
1794	# warn "entering ", $map->path, " at ($x, $y)\n"	2733	} else {
1795	# if $map;
1796
1797	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
1798		2736
		2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
		2743	}
		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1799	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1800	})->prio (1);	2751	})->prio (1);
1801	}	2752	}
1802		2753
1803	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1804		2755
…		…
1806		2757
1807	sub parse_random_map_params {	2758	sub parse_random_map_params {
1808	my ($spec) = @_;	2759	my ($spec) = @_;
1809		2760
1810	my $rmp = { # defaults	2761	my $rmp = { # defaults
1811	xsize => 10,	2762	xsize => (cf::rndm 15, 40),
1812	ysize => 10,	2763	ysize => (cf::rndm 15, 40),
		2764	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2765	#layout => string,
1813	};	2766	};
1814		2767
1815	for (split /\n/, $spec) {	2768	for (split /\n/, $spec) {
1816	my ($k, $v) = split /\s+/, $_, 2;	2769	my ($k, $v) = split /\s+/, $_, 2;
1817		2770
…		…
1829	# that depends on the exit object	2782	# that depends on the exit object
1830		2783
1831	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
1832		2785
1833	if ($exit->map) {	2786	if ($exit->map) {
1834	$rmp->{region} = $exit->map->region_name;	2787	$rmp->{region} = $exit->region->name;
1835	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1836	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1837	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1838	}	2793	}
1839		2794
1840	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1841		2796
1842	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1843	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
		2799	my $meta = "$RANDOMDIR/$md5.meta";
1844		2800
1845	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1846	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
		2803	undef $fh;
		2804	aio_rename "$meta~", $meta;
1847		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1848	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1849	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1850	}	2812	}
1851	}	2813	}
1852		2814
1853	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
1854	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
…		…
1856	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
1857		2819
1858	$self->enter_link;	2820	$self->enter_link;
1859		2821
1860	(async {	2822	(async {
1861	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
1862	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
1863	prepare_random_map $exit	2832	prepare_random_map $exit
1864	if $exit->slaying eq "/!";	2833	if $exit->slaying eq "/!";
		2834	}
1865		2835
1866	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1867	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
1868		2839
		2840	$self->goto ($map, $x, $y);
		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
1869	1;	2846	1
1870	}) {	2847	}) {
1871	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
1872	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
1873	. "Please report this to the dungeon master!",	2850	. "Please report this to the dungeon master!",
1874	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
1875		2852
1876	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
1877	$self->leave_link;	2854	$self->leave_link;
1878	}	2855	}
1879	})->prio (1);	2856	})->prio (1);
…		…
1892		2869
1893	sub cf::client::send_drawinfo {	2870	sub cf::client::send_drawinfo {
1894	my ($self, $text, $flags) = @_;	2871	my ($self, $text, $flags) = @_;
1895		2872
1896	utf8::encode $text;	2873	utf8::encode $text;
1897	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1898	}	2875	}
1899		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
		3064	=item $client->ext_msg ($type, @msg)
		3065
		3066	Sends an ext event to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_msg($$@) {
		3071	my ($self, $type, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
		3076	push @msg, msgtype => "event_$type";
		3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
		3097	}
1900		3098
1901	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
1902		3100
1903	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
1904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1905	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1906		3104
1907	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
1908	reliable at some point in the future.	3106	become reliable at some point in the future.
1909		3107
1910	=cut	3108	=cut
1911		3109
1912	sub cf::client::query {	3110	sub cf::client::query {
1913	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
1921	utf8::encode $text;	3119	utf8::encode $text;
1922	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1923		3121
1924	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
1925	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
1926	}	3126	}
1927		3127
1928	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
1929	on_reply => sub {	3134	on_reply => sub {
1930	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
1931		3136
1932	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
1933	# get handled first	3138	# get handled first
1934	my $queue = delete $ns->{query_queue}	3139	my $queue = delete $ns->{query_queue}
1935	or return; # be conservative, not sure how that can happen, but we saw a crash here	3140	or return; # be conservative, not sure how that can happen, but we saw a crash here
1936		3141
1937	(shift @$queue)->[1]->($msg);	3142	(shift @$queue)->[1]->($msg);
		3143	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1938		3144
1939	push @{ $ns->{query_queue} }, @$queue;	3145	push @{ $ns->{query_queue} }, @$queue;
1940		3146
1941	if (@{ $ns->{query_queue} } == @$queue) {	3147	if (@{ $ns->{query_queue} } == @$queue) {
1942	if (@$queue) {	3148	if (@$queue) {
…		…
1944	} else {	3150	} else {
1945	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1946	}	3152	}
1947	}	3153	}
1948	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
1949	);	3181	);
1950		3182
1951	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
1952		3184
1953	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
1969		3201
1970	$coro	3202	$coro
1971	}	3203	}
1972		3204
1973	cf::client->attach (	3205	cf::client->attach (
1974	on_destroy => sub {	3206	on_client_destroy => sub {
1975	my ($ns) = @_;	3207	my ($ns) = @_;
1976		3208
1977	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1978	},	3210	},
1979	);	3211	);
…		…
1994	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
1995	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
1996		3228
1997	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
1998		3230
1999	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
2000		3236
2001	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
2002		3238
2003	=pod	3239	=pod
2004		3240
2005	The following fucntions and emthods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
2006		3242
2007	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
2008	cf::object::player player	3248	cf::object::player
2009	cf::player peaceful	3249	player
2010	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
2011		3256
2012	=cut	3257	=cut
2013		3258
2014	for (	3259	for (
2015	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
2016	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
2017	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
2018	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
2019	) {	3266	) {
2020	no strict 'refs';	3267	no strict 'refs';
2021	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
2022	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2040		3287
2041	my $qcode = $code;	3288	my $qcode = $code;
2042	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2043	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
2044		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
2045	local $_;	3295	local $_;
2046	local @safe::cf::_safe_eval_args = values %vars;
2047		3296
2048	my $eval =	3297	my $eval =
2049	"do {\n"	3298	"do {\n"
2050	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2051	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
2052	. $code	3301	. $code
2053	. "\n}"	3302	. "\n}"
2054	;	3303	;
2055		3304
		3305	if ($CFG{safe_eval}) {
2056	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
2057	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2058	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
2059		3314
2060	if ($@) {	3315	if ($@) {
2061	warn "$@";	3316	warn "$@";
2062	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
2063	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2082	=cut	3337	=cut
2083		3338
2084	sub register_script_function {	3339	sub register_script_function {
2085	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
2086		3341
2087	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
2088	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
2089	}	3344	}
2090		3345
2091	=back	3346	=back
2092		3347
2093	=cut	3348	=cut
2094		3349
2095	#############################################################################	3350	#############################################################################
		3351	# the server's init and main functions
2096		3352
2097	=head2 EXTENSION DATABASE SUPPORT	3353	sub load_facedata($) {
		3354	my ($path) = @_;
2098		3355
2099	Crossfire maintains a very simple database for extension use. It can	3356	# HACK to clear player env face cache, we need some signal framework
2100	currently store anything that can be serialised using Storable, which	3357	# for this (global event?)
2101	excludes objects.	3358	%ext::player_env::MUSIC_FACE_CACHE = ();
2102		3359
2103	The parameter C<$family> should best start with the name of the extension	3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2104	using it, it should be unique.
2105		3361
2106	=over 4	3362	warn "loading facedata from $path\n";
2107		3363
2108	=item $hashref = cf::db_get $family	3364	my $facedata;
		3365	0 < aio_load $path, $facedata
		3366	or die "$path: $!";
2109		3367
2110	Return a hashref for use by the extension C<$family>, which can be	3368	$facedata = Coro::Storable::thaw $facedata;
2111	modified. After modifications, you have to call C<cf::db_dirty> or
2112	C<cf::db_sync>.
2113		3369
2114	=item $value = cf::db_get $family => $key	3370	$facedata->{version} == 2
		3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
2115		3372
2116	Returns a single value from the database	3373	# patch in the exptable
2117		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2118	=item cf::db_put $family => $hashref	3375	$facedata->{resource}{"res/exp_table"} = {
2119		3376	type => FT_RSRC,
2120	Stores the given family hashref into the database. Updates are delayed, if	3377	data => $exp_table,
2121	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3378	hash => (Digest::MD5::md5 $exp_table),
2122
2123	=item cf::db_put $family => $key => $value
2124
2125	Stores the given C<$value> in the family hash. Updates are delayed, if you
2126	want the data to be synced to disk immediately, use C<cf::db_sync>.
2127
2128	=item cf::db_dirty
2129
2130	Marks the database as dirty, to be updated at a later time.
2131
2132	=item cf::db_sync
2133
2134	Immediately write the database to disk I<if it is dirty>.
2135
2136	=cut
2137
2138	our $DB;
2139
2140	{
2141	my $path = cf::localdir . "/database.pst";
2142
2143	sub db_load() {
2144	$DB = stat $path ? Storable::retrieve $path : { };
2145	}
2146
2147	my $pid;
2148
2149	sub db_save() {
2150	waitpid $pid, 0 if $pid;
2151	if (0 == ($pid = fork)) {
2152	$DB->{_meta}{version} = 1;
2153	Storable::nstore $DB, "$path~";
2154	rename "$path~", $path;
2155	cf::_exit 0 if defined $pid;
2156	}
2157	}
2158
2159	my $dirty;
2160
2161	sub db_sync() {
2162	db_save if $dirty;
2163	undef $dirty;
2164	}
2165
2166	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2167	db_sync;
2168	});	3379	};
		3380	cf::cede_to_tick;
2169		3381
2170	sub db_dirty() {
2171	$dirty = 1;
2172	$idle->start;
2173	}	3382	{
		3383	my $faces = $facedata->{faceinfo};
2174		3384
2175	sub db_get($;$) {	3385	while (my ($face, $info) = each %$faces) {
2176	@_ >= 2	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2177	? $DB->{$_[0]}{$_[1]}
2178	: ($DB->{$_[0]} ||= { })
2179	}
2180		3387
2181	sub db_put($$;$) {	3388	cf::face::set_visibility $idx, $info->{visibility};
2182	if (@_ >= 3) {	3389	cf::face::set_magicmap $idx, $info->{magicmap};
2183	$DB->{$_[0]}{$_[1]} = $_[2];	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2184	} else {	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2185	$DB->{$_[0]} = $_[1];
2186	}
2187	db_dirty;
2188	}
2189		3392
2190	cf::global->attach (	3393	cf::cede_to_tick;
2191	prio => 10000,
2192	on_cleanup => sub {
2193	db_sync;
2194	},	3394	}
2195	);
2196	}
2197		3395
2198	#############################################################################	3396	while (my ($face, $info) = each %$faces) {
2199	# the server's main()	3397	next unless $info->{smooth};
2200		3398
2201	sub cfg_load {	3399	my $idx = cf::face::find $face
		3400	or next;
		3401
		3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
		3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3405	} else {
		3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	{
		3414	my $anims = $facedata->{animinfo};
		3415
		3416	while (my ($anim, $info) = each %$anims) {
		3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3418	cf::cede_to_tick;
		3419	}
		3420
		3421	cf::anim::invalidate_all; # d'oh
		3422	}
		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
		3443	1
		3444	}
		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
		3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
		3489	load_resource_file "$MAPDIR/regions"
		3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
		3496	}
		3497
		3498	sub reload_facedata {
		3499	load_facedata "$DATADIR/facedata"
		3500	or die "unable to load facedata\n";
		3501	}
		3502
		3503	sub reload_archetypes {
		3504	load_resource_file "$DATADIR/archetypes"
		3505	or die "unable to load archetypes\n";
		3506	}
		3507
		3508	sub reload_treasures {
		3509	load_resource_file "$DATADIR/treasures"
		3510	or die "unable to load treasurelists\n";
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_archetypes;
		3518	reload_regions;
		3519	reload_treasures;
		3520
		3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub reload_config {
		3525	warn "reloading config file...\n";
		3526
2202	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2203	or return;	3528	or return;
2204		3529
2205	local $/;	3530	local $/;
2206	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2207		3532
2208	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2209		3534
2210	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2211	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2212		3537
2213	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2215	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2216	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2217	};	3542	};
2218	warn $@ if $@;	3543	warn $@ if $@;
2219	}	3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
2220	}	3575	}
2221		3576
2222	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
2223	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2224	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2225	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2226	async { Event::one_event };	3590	(async {
		3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
		3593	})->prio (Coro::PRIO_MAX);
2227	};	3594	};
2228		3595
2229	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
2230	db_load;	3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
		3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2231	load_extensions;	3619	load_extensions;
2232	Event::loop;	3620
		3621	utime time, time, $RUNTIMEFILE;
		3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
2233	}	3634	}
2234		3635
2235	#############################################################################	3636	#############################################################################
2236	# initialisation and cleanup	3637	# initialisation and cleanup
2237		3638
2238	# install some emergency cleanup handlers	3639	# install some emergency cleanup handlers
2239	BEGIN {	3640	BEGIN {
		3641	our %SIGWATCHER = ();
2240	for my $signal (qw(INT HUP TERM)) {	3642	for my $signal (qw(INT HUP TERM)) {
2241	Event->signal (	3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2242	data => WF_AUTOCANCEL,
2243	signal => $signal,
2244	cb => sub {
2245	cf::cleanup "SIG$signal";	3644	cf::cleanup "SIG$signal";
2246	},
2247	);	3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
2248	}	3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
2249	}	3735	}
2250		3736
2251	sub emergency_save() {	3737	sub emergency_save() {
2252	my $freeze_guard = cf::freeze_mainloop;	3738	my $freeze_guard = cf::freeze_mainloop;
2253		3739
2254	warn "enter emergency perl save\n";	3740	warn "emergency_perl_save: enter\n";
2255		3741
2256	cf::sync_job {	3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
2257	# use a peculiar iteration method to avoid tripping on perl	3748	# use a peculiar iteration method to avoid tripping on perl
2258	# refcount bugs in for. also avoids problems with players	3749	# refcount bugs in for. also avoids problems with players
2259	# and maps saved/Destroyed asynchronously.	3750	# and maps saved/destroyed asynchronously.
2260	warn "begin emergency player save\n";	3751	warn "emergency_perl_save: begin player save\n";
2261	for my $login (keys %cf::PLAYER) {	3752	for my $login (keys %cf::PLAYER) {
2262	my $pl = $cf::PLAYER{$login} or next;	3753	my $pl = $cf::PLAYER{$login} or next;
2263	$pl->valid or next;	3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2264	$pl->save;	3756	$pl->save;
2265	}	3757	}
2266	warn "end emergency player save\n";	3758	warn "emergency_perl_save: end player save\n";
2267		3759
2268	warn "begin emergency map save\n";	3760	warn "emergency_perl_save: begin map save\n";
2269	for my $path (keys %cf::MAP) {	3761	for my $path (keys %cf::MAP) {
2270	my $map = $cf::MAP{$path} or next;	3762	my $map = $cf::MAP{$path} or next;
2271	$map->valid or next;	3763	$map->valid or next;
2272	$map->save;	3764	$map->save;
2273	}	3765	}
2274	warn "end emergency map save\n";	3766	warn "emergency_perl_save: end map save\n";
		3767
		3768	warn "emergency_perl_save: begin database checkpoint\n";
		3769	BDB::db_env_txn_checkpoint $DB_ENV;
		3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
2275	};	3775	};
2276		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
2277	warn "leave emergency perl save\n";	3782	warn "emergency_perl_save: leave\n";
2278	}	3783	}
2279		3784
		3785	sub post_cleanup {
		3786	my ($make_core) = @_;
		3787
		3788	warn Carp::longmess "post_cleanup backtrace"
		3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
		3818	}
		3819
2280	sub reload() {	3820	sub do_reload_perl() {
2281	# can/must only be called in main	3821	# can/must only be called in main
2282	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2283	warn "can only reload from main coroutine\n";	3823	warn "can only reload from main coroutine";
2284	return;	3824	return;
2285	}	3825	}
2286		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2287	warn "reloading...";	3832	warn "reloading...";
2288		3833
2289	warn "freezing server";	3834	warn "entering sync_job";
2290	my $guard = freeze_mainloop;	3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
2291	cf::emergency_save;	3838	cf::emergency_save;
		3839	cf::write_runtime_sync; # external watchdog should not bark
2292		3840
2293	warn "sync database to disk";	3841	warn "syncing database to disk";
2294	cf::db_sync;	3842	BDB::db_env_txn_checkpoint $DB_ENV;
2295	IO::AIO::flush;
2296		3843
2297	eval {
2298	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2299		3845
2300	warn "cancel all watchers";	3846	warn "flushing outstanding aio requests";
2301	for (Event::all_watchers) {	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2302	$_->cancel if $_->data & WF_AUTOCANCEL;	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2303	}
2304
2305	warn "cancel all extension coros";
2306	$_->cancel for values %EXT_CORO;
2307	%EXT_CORO = ();
2308
2309	warn "remove commands";
2310	%COMMAND = ();
2311
2312	warn "remove ext commands";
2313	%EXTCMD = ();
2314
2315	warn "unload/nuke all extensions";
2316	for my $pkg (@EXTS) {
2317	warn "... unloading $pkg";
2318
2319	if (my $cb = $pkg->can ("unload")) {
2320	eval {
2321	$cb->($pkg);
2322	1
2323	} or warn "$pkg unloaded, but with errors: $@";
2324	}	3849	}
2325		3850
		3851	warn "cancelling all extension coros";
		3852	$_->cancel for values %EXT_CORO;
		3853	%EXT_CORO = ();
		3854
		3855	warn "removing commands";
		3856	%COMMAND = ();
		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
2326	warn "... nuking $pkg";	3864	warn "... unloading $pkg";
2327	Symbol::delete_package $pkg;
2328	}
2329		3865
2330	warn "unload all perl modules loaded from $LIBDIR";
2331	while (my ($k, $v) = each %INC) {
2332	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2333
2334	warn "removing <$k>";
2335	delete $INC{$k};
2336
2337	$k =~ s/\.pm$//;
2338	$k =~ s/\//::/g;
2339
2340	if (my $cb = $k->can ("unload_module")) {	3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
2341	$cb->();	3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2342	}	3875	}
2343		3876
2344	Symbol::delete_package $k;	3877	warn "unloading all perl modules loaded from $LIBDIR";
		3878	while (my ($k, $v) = each %INC) {
		3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
2345	}	3892	}
2346		3893
2347	warn "get rid of safe::, as good as possible";	3894	warn "getting rid of safe::, as good as possible";
2348	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2349	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2350		3897
2351	warn "unload cf.pm \"a bit\"";	3898	warn "unloading cf.pm \"a bit\"";
2352	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2353		3901
2354	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2355	# and global variables created in xs	3903	# and global variables created in xs
2356	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2357		3905
		3906	warn "unload completed, starting to reload now";
		3907
2358	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2359	require cf;	3909	require cf;
2360	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2361		3911
2362	warn "load config and database again";	3912	warn "loading config and database again";
2363	cf::cfg_load;	3913	cf::reload_config;
2364	cf::db_load;
2365		3914
2366	warn "load extensions";	3915	warn "loading extensions";
2367	cf::load_extensions;	3916	cf::load_extensions;
2368		3917
		3918	if ($REATTACH_ON_RELOAD) {
2369	warn "reattach attachments to objects/players";	3919	warn "reattaching attachments to objects/players";
2370	_global_reattach;	3920	_global_reattach; # objects, sockets
2371	warn "reattach attachments to maps";	3921	warn "reattaching attachments to maps";
2372	reattach $_ for values %MAP;	3922	reattach $_ for values %MAP;
		3923	warn "reattaching attachments to players";
		3924	reattach $_ for values %PLAYER;
		3925	}
		3926
		3927	warn "running post_init jobs";
		3928	(pop @POST_INIT)->(1) while @POST_INIT;
		3929
		3930	warn "leaving sync_job";
		3931
		3932	1
		3933	} or do {
		3934	warn $@;
		3935	cf::cleanup "error while reloading, exiting.";
		3936	};
		3937
		3938	warn "reloaded";
		3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
		3944	};
		3945
		3946	our $RELOAD_WATCHER; # used only during reload
		3947
		3948	sub reload_perl() {
		3949	# doing reload synchronously and two reloads happen back-to-back,
		3950	# coro crashes during coro_state_free->destroy here.
		3951
		3952	$RELOAD_WATCHER ||= cf::async {
		3953	Coro::AIO::aio_wait cache_extensions;
		3954
		3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3956	do_reload_perl;
		3957	undef $RELOAD_WATCHER;
		3958	};
2373	};	3959	};
2374		3960	}
2375	if ($@) {
2376	warn $@;
2377	warn "error while reloading, exiting.";
2378	exit 1;
2379	}
2380
2381	warn "reloaded";
2382	};
2383		3961
2384	register_command "reload" => sub {	3962	register_command "reload" => sub {
2385	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2386		3964
2387	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2388	$who->message ("start of reload.");
2389	reload;
2390	$who->message ("end of reload.");	3966	$who->message ("reloading server.");
		3967	async {
		3968	$Coro::current->{desc} = "perl_reload";
		3969	reload_perl;
		3970	};
2391	}	3971	}
2392	};	3972	};
2393		3973
2394	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2395		3975
2396	$TICK_WATCHER = Event->timer (	3976	my $bug_warning = 0;
2397	reentrant => 0,
2398	prio => 0,
2399	at => $NEXT_TICK || $TICK,
2400	data => WF_AUTOCANCEL,
2401	cb => sub {
2402	$NOW = Event::time;
2403		3977
		3978	our @WAIT_FOR_TICK;
		3979	our @WAIT_FOR_TICK_BEGIN;
		3980
		3981	sub wait_for_tick {
		3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3983
		3984	my $signal = new Coro::Signal;
		3985	push @WAIT_FOR_TICK, $signal;
		3986	$signal->wait;
		3987	}
		3988
		3989	sub wait_for_tick_begin {
		3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3991
		3992	my $signal = new Coro::Signal;
		3993	push @WAIT_FOR_TICK_BEGIN, $signal;
		3994	$signal->wait;
		3995	}
		3996
		3997	sub tick {
		3998	if ($Coro::current != $Coro::main) {
		3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4000	unless ++$bug_warning > 10;
		4001	return;
		4002	}
		4003
2404	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2405	$RUNTIME += $TICK;
2406	$NEXT_TICK += $TICK;
2407		4005
2408	$WAIT_FOR_TICK->broadcast;	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2409	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2410		4007
2411	# if we are delayed by four ticks or more, skip them all	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2412	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2413		4010	Coro::async_pool {
2414	$TICK_WATCHER->at ($NEXT_TICK);	4011	$Coro::current->{desc} = "runtime saver";
2415	$TICK_WATCHER->start;
2416	},
2417	);
2418
2419	IO::AIO::max_poll_time $TICK * 0.2;
2420
2421	Event->io (
2422	fd => IO::AIO::poll_fileno,
2423	poll => 'r',
2424	prio => 5,
2425	data => WF_AUTOCANCEL,
2426	cb => \&IO::AIO::poll_cb,
2427	);
2428
2429	Event->timer (
2430	data => WF_AUTOCANCEL,
2431	after => 0,
2432	interval => 10,
2433	cb => sub {
2434	(Coro::unblock_sub {
2435	write_runtime	4012	write_runtime_sync
2436	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2437	})->();	4014	};
2438	},	4015	}
2439	);	4016
		4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4018	$sig->send;
		4019	}
		4020	while (my $sig = shift @WAIT_FOR_TICK) {
		4021	$sig->send;
		4022	}
		4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
		4035
		4036	{
		4037	# configure BDB
		4038
		4039	BDB::min_parallel 16;
		4040	BDB::max_poll_reqs $TICK * 0.1;
		4041	$AnyEvent::BDB::WATCHER->priority (1);
		4042
		4043	unless ($DB_ENV) {
		4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4050
		4051	cf::sync_job {
		4052	eval {
		4053	BDB::db_env_open
		4054	$DB_ENV,
		4055	$BDBDIR,
		4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4058	0666;
		4059
		4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4061	};
		4062
		4063	cf::cleanup "db_env_open(db): $@" if $@;
		4064	};
		4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
		4076	}
		4077
		4078	{
		4079	# configure IO::AIO
		4080
		4081	IO::AIO::min_parallel 8;
		4082	IO::AIO::max_poll_time $TICK * 0.1;
		4083	undef $AnyEvent::AIO::WATCHER;
		4084	}
		4085
		4086	my $_log_backtrace;
		4087
		4088	sub _log_backtrace {
		4089	my ($msg, @addr) = @_;
		4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
		4126	}
		4127
		4128	# load additional modules
		4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
2440		4131
2441	END { cf::emergency_save }	4132	END { cf::emergency_save }
2442		4133
2443	1	4134	1
2444		4135

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