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Revision 1.179 by root, Thu Jan 18 20:39:00 2007 UTC vs.
Revision 1.529 by root, Wed Apr 28 11:28:22 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 3.4 ();	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;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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
51	our $NEXT_TICK;	121	our $NEXT_TICK;
52	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);
53		130
54	our %CFG;	131	our %CFG;
55		132
56	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
58		136
59	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		140
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $REALLY_UNLOOP; # never set to true, please :)
		153
70	binmode STDOUT;	154	binmode STDOUT;
71	binmode STDERR;	155	binmode STDERR;
72		156
73	# read virtual server time, if available	157	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
78	}	162	}
79		163
80	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	165
82	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		168
86	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::"} };
87		187
88	#############################################################################	188	#############################################################################
89		189
90	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
91		191
…		…
98	=item $cf::RUNTIME	198	=item $cf::RUNTIME
99		199
100	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
101	every server tick.	201	every server tick.
102		202
103	=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
104		206
105	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		211
108	=item $cf::NOW	212	=item $cf::NOW
109		213
110	The time of the last (current) server tick.	214	The time of the last (current) server tick.
111		215
112	=item $cf::TICK	216	=item $cf::TICK
113		217
114	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
115		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
116	=item %cf::CFG	230	=item %cf::CFG
117		231
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	233	from wherever your confdir points to.
120		234
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		236
123	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
124	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
125	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.
126	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.
127		252
128	=back	253	=back
129		254
130	=cut	255	=cut
131		256
132	BEGIN {	257	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	258	my $msg = join "", @_;
135	utf8::encode $msg;
136		259
137	$msg .= "\n"	260	$msg .= "\n"
138	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
139		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
140	LOG llevError, $msg;	265	LOG llevError, $msg;
141	};	266	};
142	}	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	};
143		281
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		289
151	# 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
152	# within the Safe compartment.	291	# within the Safe compartment.
153	for my $pkg (qw(	292	for my $pkg (qw(
154	cf::global cf::attachable	293	cf::global cf::attachable
155	cf::object cf::object::player	294	cf::object cf::object::player
156	cf::client cf::player	295	cf::client cf::player
157	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
158	cf::map cf::party cf::region	298	cf::party cf::region
159	)) {	299	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	301	}
163		302
164	$Event::DIED = sub {	303	$EV::DIED = sub {
165	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
166	};	305	};
		306
		307	#############################################################################
167		308
168	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
169		310
170	=over 4	311	=over 4
171		312
…		…
190	$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;
191	$d	332	$d
192	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
193	}	334	}
194		335
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
198		337
199	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
200		339
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
209		341
210	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
211		343
212	=cut	344	=cut
213		345
214	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
216	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;
217	}	363	}
218		364
219	=item cf::lock_wait $string	365	=item cf::lock_wait $string
220		366
221	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
222		368
223	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
224		370
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
228	returned.	374	returned.
229		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
230	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
231	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
232		381
233	=cut	382	=item $locked = cf::lock_active $string
234		383
235	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
236		389
237	sub lock_wait($) {	390	sub lock_wait($) {
238	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	392	}
246		393
247	sub lock_acquire($) {	394	sub lock_acquire($) {
248	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
249		397
250	# wait, to be sure we are not locked	398	sub lock_active($) {
251	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	400	}
260		401
261	sub freeze_mainloop {	402	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
263		404
264	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	406	}
266	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
267	};	472	}
268	$WRITE_RUNTIME_WATCHER->stop;	473	};
269	$TICK_WATCHER->stop;	474
270	$guard	475	sub get_slot($;$$) {
		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	$sig->wait;
271	}	488	}
272		489
273	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
274		491
275	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		497
281	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
282		499
283	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
284		501
285	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
288		506
289	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
292	fast or be very important.	510	fast or be very important.
…		…
295		513
296	sub sync_job(&) {	514	sub sync_job(&) {
297	my ($job) = @_;	515	my ($job) = @_;
298		516
299	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
300	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
302		522
303	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	524
305	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
306		526
307	my $busy = 1;	527	my $busy = 1;
308	my @res;	528	my @res;
309		529
310	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	532	@res = eval { $job->() };
312	warn $@ if $@;	533	warn $@ if $@;
313	undef $busy;	534	undef $busy;
314	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
315		536
316	while ($busy) {	537	while ($busy) {
317	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
318	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
319		548
320	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
321	} else {	550	} else {
322	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
323		552
…		…
343	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
344		573
345	$coro	574	$coro
346	}	575	}
347		576
348	sub write_runtime {	577	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		578
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
352	or return;	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.
353		583
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		585
358	aio_fsync $fh	586	sub fork_call(&@) {
359	and return;	587	my ($cb, @args) = @_;
360		588
361	close $fh	589	# we seemingly have to make a local copy of the whole thing,
362	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
363		592
364	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
365	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
366		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
367	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 });
368	}	775	}
369		776
370	=back	777	=back
371		778
372	=cut	779	=cut
373		780
374	#############################################################################	781	#############################################################################
375		782
376	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
377		784
378	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
379	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")
380	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
381		788
382	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>
383	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
384	crossfire+).	791	Deliantra).
385		792
386	=over 4	793	=over 4
387		794
388	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
389		796
…		…
433	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
434		841
435	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
437		844
438	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
439	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.
440		847
441	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
442		849
443	=over 4	850	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
553		960
554	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		965
559	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	967	my $pkg = shift @arg;
561		968
562	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
592	}	999	}
593		1000
594	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
595	} else {	1002	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	1004	}
598		1005
599	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
600	}	1007	}
601		1008
…		…
603	if (ref $_[0]) {	1010	if (ref $_[0]) {
604	_object_attach @_;	1011	_object_attach @_;
605	} else {	1012	} else {
606	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
607	}	1014	}
		1015	_recalc_want;
608	};	1016	};
609		1017
610	# all those should be optimised	1018	# all those should be optimised
611	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
616	reattach ($obj);	1024	reattach ($obj);
617	} else {	1025	} else {
618	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
619	}	1027	}
		1028	_recalc_want;
620	};	1029	};
621		1030
622	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
624		1033
…		…
639	";	1048	";
640	die if $@;	1049	die if $@;
641	}	1050	}
642		1051
643	our $override;	1052	our $override;
644	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?
645		1054
646	sub override {	1055	sub override {
647	$override = 1;	1056	$override = 1;
648	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
649	}	1058	}
650		1059
651	sub do_invoke {	1060	sub do_invoke {
652	my $event = shift;	1061	my $event = shift;
653	my $callbacks = shift;	1062	my $callbacks = shift;
654		1063
655	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
656		1065
657	local $override;	1066	local $override;
658		1067
659	for (@$callbacks) {	1068	for (@$callbacks) {
660	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
669	}	1078	}
670		1079
671	0	1080	0
672	}	1081	}
673		1082
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1084
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1086
678	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
679		1088
680	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
681	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
682	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1092
684	=back	1093	=back
685		1094
686	=cut	1095	=cut
687		1096
688	#############################################################################	1097	#############################################################################
689	# 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, $ob2
		1140	}
690		1141
691	sub reattach {	1142	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1144	my ($obj) = @_;
694		1145
		1146	# no longer needed after getting rid of delete_package?
695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
696		1148
697	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
698		1150
699	@$registry = ();	1151	@$registry = ();
700		1152
…		…
715	cf::attachable->attach (	1167	cf::attachable->attach (
716	prio => -1000000,	1168	prio => -1000000,
717	on_instantiate => sub {	1169	on_instantiate => sub {
718	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
719		1171
720	$data = from_json $data;	1172	$data = decode_json $data;
721		1173
722	for (@$data) {	1174	for (@$data) {
723	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
724		1176
725	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1193	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
743		1195
744	sync_job {	1196	sync_job {
745	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
748		1202
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
751	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;
752	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
753	close $fh;	1210	aio_close $fh;
754		1211
755	if (@$objs) {	1212	if (@$objs) {
756	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) {
757	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	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;
760	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
761	close $fh;	1221	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
763	}	1223	}
764	} else {	1224	} else {
765	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
766	}	1226	}
767		1227
768	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
769	} else {	1232	} else {
770	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
771	}	1234	}
772	} else {	1235	} else {
773	aio_unlink $filename;	1236	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
775	}	1238	}
776	}	1239	};
777	}	1240	}
778		1241
779	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
781		1244
…		…
793	or return;	1256	or return;
794		1257
795	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
797	or return;	1260	or return;
		1261
798	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
799	}	1264	}
800		1265
		1266	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
803	return ($data, $av);	1271	($data, $av)
804	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
805		1279
806	#############################################################################	1280	#############################################################################
807	# command handling &c	1281	# command handling &c
808		1282
809	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1297	}
824		1298
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1300
827	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.
828		1306
829	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
830	called.	1308	called.
831		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
832	=cut	1321	=cut
833		1322
834	sub register_extcmd {	1323	sub register_extcmd {
835	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
836		1325
837	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
838	}	1327	}
839		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
840	cf::player->attach (	1337	cf::player->attach (
841	on_command => sub {	1338	on_unknown_command => sub {
842	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
843		1340
844	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
845	or return;	1342	or return;
846		1343
…		…
851	cf::override;	1348	cf::override;
852	},	1349	},
853	on_extcmd => sub {	1350	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
855		1352
856	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1354
858	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
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
861	$pl->ext_reply ($msg->{msgid}, %reply);
862	}
863	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
864	} else {	1370	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1372	}
867		1373
868	cf::override;	1374	cf::override;
869	},	1375	},
870	);	1376	);
871		1377
		1378	# "readahead" all extensions
872	sub load_extension {	1379	sub cache_extensions {
873	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
874		1381
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
876	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
877	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}	1385	}
900	die $@;
901	}	1386	};
902		1387
903	push @EXTS, $pkg;	1388	$grp
904	}	1389	}
905		1390
906	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
907	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1396	next unless -r $path;
909	eval {	1397
910	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 $active;
		1460	}
911	1	1461	}
912	} or warn "$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	}
913	}	1472	};
914	}	1473	}
915		1474
916	#############################################################################	1475	#############################################################################
917		1476
		1477	=back
		1478
918	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
919		1480
920	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
921		1482
922	=cut	1483	=cut
923		1484
924	package cf::player;	1485	package cf::player;
925		1486
…		…
927		1488
928	=head3 cf::player	1489	=head3 cf::player
929		1490
930	=over 4	1491	=over 4
931		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
932	=item cf::player::find $login	1507	=item cf::player::find $login
933		1508
934	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
935		1510
936	=cut	1511	=cut
937		1512
938	sub playerdir($) {	1513	sub playerdir($) {
939	cf::localdir	1514	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1516	}
945		1517
946	sub path($) {	1518	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1520
949	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
950	}	1522	}
951		1523
952	sub find_active($) {	1524	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
957		1529
958	sub exists($) {	1530	sub exists($) {
959	my ($login) = @_;	1531	my ($login) = @_;
960		1532
961	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1534	or !aio_stat path $login
963	}	1535	}
964		1536
965	sub find($) {	1537	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1539	my $login = $_[0];
968		1540
969	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
970		1542
971	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
972	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
973	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;
974	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
975	}	1560	}
976	}	1561	}
977	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
978		1576
979	sub save($) {	1577	sub save($) {
980	my ($pl) = @_;	1578	my ($pl) = @_;
981		1579
982	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
987	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
988		1586
989	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
991		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
992	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
993	Coro::cede;	1596	cf::cede_to_tick;
994	}	1597	}
995		1598
996	sub new($) {	1599	sub new($) {
997	my ($login) = @_;	1600	my ($login) = @_;
998		1601
…		…
1004	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1005		1608
1006	$self	1609	$self
1007	}	1610	}
1008		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
1009	=item $pl->quit_character	1622	=item $pl->quit_character
1010		1623
1011	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1013		1626
1014	=cut	1627	=cut
1015		1628
1016	sub quit_character {	1629	sub quit_character {
1017	my ($pl) = @_;	1630	my ($pl) = @_;
1018		1631
		1632	my $name = $pl->ob->name;
		1633
1019	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1020	$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
1021		1636
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1023	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1025	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1026		1642
1027	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1645	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1032	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
1033	}	1669	}
1034		1670
1035	=item cf::player::list_logins	1671	=item cf::player::list_logins
1036		1672
1037	Returns am arrayref of all valid playernames in the system, can take a	1673	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1039		1675
1040	=cut	1676	=cut
1041		1677
1042	sub list_logins {	1678	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1680	or return [];
1045		1681
1046	my @logins;	1682	my @logins;
1047		1683
1048	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1052		1694
1053	utf8::decode $login;	1695	utf8::decode $login;
1054	push @logins, $login;	1696	push @logins, $login;
1055	}	1697	}
1056		1698
1057	\@logins	1699	\@logins
1058	}	1700	}
1059		1701
1060	=item $player->maps	1702	=item $player->maps
1061		1703
		1704	=item cf::player::maps $login
		1705
1062	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1063	player. May block.	1707	player. May block.
1064		1708
1065	=cut	1709	=cut
1066		1710
1067	sub maps($) {	1711	sub maps($) {
1068	my ($pl) = @_;	1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1715
1070	my $files = aio_readdir playerdir $pl	1716	my $files = aio_readdir playerdir $pl
1071	or return;	1717	or return;
1072		1718
1073	my @paths;	1719	my @paths;
…		…
1075	for (@$files) {	1721	for (@$files) {
1076	utf8::decode $_;	1722	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1723	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1724	next unless /^$PATH_SEP/o;
1079		1725
1080	s/\.map$//;	1726	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1727	}
1083		1728
1084	\@paths	1729	\@paths
1085	}	1730	}
1086		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1088		1737
1089	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1090		1739
1091	=cut	1740	=cut
1092		1741
1093	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1095		1744
1096	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1746	}
1100		1747
1101	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1102		1790
1103	=back	1791	=back
1104
1105		1792
1106	=head3 cf::map	1793	=head3 cf::map
1107		1794
1108	=over 4	1795	=over 4
1109		1796
…		…
1121	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1123		1810
1124	sub generate_random_map {	1811	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1126	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1127	$self->_create_random_map (	1817	$self->_create_random_map (
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1827	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1828	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1829	)
1140	}	1830	}
1141		1831
		1832	=item cf::map->register ($regex, $prio)
		1833
		1834	Register a handler for the map path matching the given regex at the
		1835	givne priority (higher is better, built-in handlers have priority 0, the
		1836	default).
		1837
		1838	=cut
		1839
1142	sub register {	1840	sub register {
1143	my (undef, $regex) = @_;	1841	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1842	my $pkg = caller;
1145		1843
1146	no strict;	1844	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1845	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1846
1149	$EXT_MAP{$pkg} = qr<$regex>;	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1848	}
1151		1849
1152	# also paths starting with '/'	1850	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1154		1852
1155	sub thawer_merge {	1853	sub thawer_merge {
1156	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1157		1855
1158	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1159	local $self->{path};	1857	local $self->{path};
1160	local $self->{load_path};	1858	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1859
1164	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1165	}	1861	}
1166		1862
1167	sub normalise {	1863	sub normalise {
1168	my ($path, $base) = @_;	1864	my ($path, $base) = @_;
		1865
		1866	$path = "$path"; # make sure its a string
		1867
		1868	$path =~ s/\.map$//;
1169		1869
1170	# map plan:	1870	# map plan:
1171	#	1871	#
1172	# /! non-realised random map exit (special hack!)	1872	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1873	# {... are special paths that are not being touched
…		…
1201		1901
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1902	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1903
1204	$path = normalise $path, $base;	1904	$path = normalise $path, $base;
1205		1905
1206	for my $pkg (keys %EXT_MAP) {	1906	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1907	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1908	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1909	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1211	return $self;	1911	return $self;
1212	}	1912	}
1213	}	1913	}
1214		1914
1215	Carp::carp "unable to resolve path '$path'.";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1216	()	1916	()
1217	}	1917	}
1218		1918
1219	sub init {	1919	sub init {
1220	my ($self) = @_;	1920	my ($self) = @_;
…		…
1235		1935
1236	# the original (read-only) location	1936	# the original (read-only) location
1237	sub load_path {	1937	sub load_path {
1238	my ($self) = @_;	1938	my ($self) = @_;
1239		1939
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1241	}	1941	}
1242		1942
1243	# the temporary/swap location	1943	# the temporary/swap location
1244	sub save_path {	1944	sub save_path {
1245	my ($self) = @_;	1945	my ($self) = @_;
1246		1946
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1249	}	1949	}
1250		1950
1251	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1252	sub uniq_path {	1952	sub uniq_path {
1253	my ($self) = @_;	1953	my ($self) = @_;
1254		1954
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1257	}	1957	}
1258		1958
1259	# and all this just because we cannot iterate over	1959	sub decay_objects {
1260	# all maps in C++...
1261	sub change_all_map_light {
1262	my ($change) = @_;	1960	my ($self) = @_;
1263		1961
1264	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1265	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1266	}	1965	}
1267		1966
1268	sub unlink_save {	1967	sub unlink_save {
1269	my ($self) = @_;	1968	my ($self) = @_;
1270		1969
…		…
1275		1974
1276	sub load_header_from($) {	1975	sub load_header_from($) {
1277	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1278		1977
1279	utf8::encode $path;	1978	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1281	or return;	1980	or return;
1282		1981
1283	$self->_load_header ($path)	1982	$self->_load_header ($f)
1284	or return;	1983	or return;
1285		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
		1987
1286	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1287		1989
1288	1	1990	1
1289	}	1991	}
1290		1992
1291	sub load_orig {	1993	sub load_header_orig {
1292	my ($self) = @_;	1994	my ($self) = @_;
1293		1995
1294	$self->load_header_from ($self->load_path)	1996	$self->load_header_from ($self->load_path)
1295	}	1997	}
1296		1998
1297	sub load_temp {	1999	sub load_header_temp {
1298	my ($self) = @_;	2000	my ($self) = @_;
1299		2001
1300	$self->load_header_from ($self->save_path)	2002	$self->load_header_from ($self->save_path)
		2003	}
		2004
		2005	sub prepare_temp {
		2006	my ($self) = @_;
		2007
		2008	$self->last_access ((delete $self->{last_access})
		2009	|| $cf::RUNTIME); #d#
		2010	# safety
		2011	$self->{instantiate_time} = $cf::RUNTIME
		2012	if $self->{instantiate_time} > $cf::RUNTIME;
		2013	}
		2014
		2015	sub prepare_orig {
		2016	my ($self) = @_;
		2017
		2018	$self->{load_original} = 1;
		2019	$self->{instantiate_time} = $cf::RUNTIME;
		2020	$self->last_access ($cf::RUNTIME);
		2021	$self->instantiate;
1301	}	2022	}
1302		2023
1303	sub load_header {	2024	sub load_header {
1304	my ($self) = @_;	2025	my ($self) = @_;
1305		2026
1306	if ($self->load_temp) {	2027	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	2028	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	2029	} else {
1313	$self->load_orig	2030	$self->load_header_orig
1314	or return;	2031	or return;
1315		2032	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	2033	}
		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
		2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
1321		2040
1322	1	2041	1
1323	}	2042	}
1324		2043
1325	sub find;	2044	sub find;
1326	sub find {	2045	sub find {
1327	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1328		2047
1329	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1330		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1331	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1332		2052
1333	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1334	my $guard = cf::lock_acquire "map_find:$path";
1335	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1336	or return;	2055	or return;
1337		2056
1338	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1339		2058
1340	$map->load_header	2059	$map->load_header
1341	or return;	2060	or return;
1342		2061
1343	if ($map->should_reset) {	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2063	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1345	$map->reset;	2067	$map->reset;
1346	undef $guard;
1347	$map = find $path	2068	return find $path;
1348	or return;
1349	}	2069	}
1350		2070
1351	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1352	}	2072	}
1353	}	2073	}
		2074
		2075	sub pre_load { }
		2076	#sub post_load { } # XS
1354		2077
1355	sub load {	2078	sub load {
1356	my ($self) = @_;	2079	my ($self) = @_;
1357		2080
		2081	local $self->{deny_reset} = 1; # loading can take a long time
		2082
1358	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1359	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1360		2087
		2088	return unless $self->valid;
1361	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1362		2090
1363	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1364		2092
1365	$self->alloc;	2093	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)	2094
		2095	$self->pre_load;
		2096	cf::cede_to_tick;
		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1367	or return;	2101	or return;
1368		2102
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1370	if delete $self->{load_original};	2104	if delete $self->{load_original};
1371		2105
1372	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;	2107	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1375	$self->clear_unique_items;	2110	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1377	}	2114	}
1378	}	2115	}
1379		2116
1380	Coro::cede;	2117	$f->resolve_delayed_derefs;
1381		2118
		2119	cf::cede_to_tick;
1382	# now do the right thing for maps	2120	# now do the right thing for maps
1383	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;
1390	$self->set_darkness_map;
1391	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	2123	unless $self->difficulty;
1393	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1394	$self->activate;	2131	$self->activate;
1395	}	2132	}
1396		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
1397	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
1398	}	2138	}
1399		2139
		2140	$self->post_load;
		2141	}
		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1400	sub customise_for {	2146	sub customise_for {
1401	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1402		2148
1403	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	2150	if $self->per_player;
1405		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1406	$self	2155	$self
1407	}	2156	}
1408		2157
1409	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1410	sub load_diag {	2159	sub load_neighbours {
1411	my ($map) = @_;	2160	my ($map) = @_;
1412		2161
1413	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1414		2163
1415	for (0 .. 3) {	2164	for (0 .. 3) {
1416	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1417	or next;	2166	or next;
1418	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1419	or next;	2168	or next;
1420	$neigh->load;	2169	$neigh->load;
1421		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1424	}	2175	}
1425		2176
1426	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1427	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1428	or next;	2180	or next;
1429	$neigh->load;	2181	$neigh->load;
1430	}	2182	}
1431	}	2183	}
1432		2184
…		…
1437	}	2189	}
1438		2190
1439	sub do_load_sync {	2191	sub do_load_sync {
1440	my ($map) = @_;	2192	my ($map) = @_;
1441		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1442	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1443	}	2198	}
1444		2199
1445	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	2201	our $MAP_PREFETCHER = undef;
1447	while () {
1448	for my $path (keys %MAP_PREFETCH) {
1449	my $map = find $path
1450	or next;
1451	$map->load;
1452
1453	delete $MAP_PREFETCH{$path};
1454	}
1455	Coro::schedule;
1456	}
1457	};
1458		2202
1459	sub find_async {	2203	sub find_async {
1460	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1461		2205
1462	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1463		2207
1464	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2210	}
		2211
		2212	$MAP_PREFETCH{$path} |= $load;
		2213
		2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
		2217	while (%MAP_PREFETCH) {
		2218	while (my ($k, $v) = each %MAP_PREFETCH) {
		2219	if (my $map = find $k) {
		2220	$map->load if $v;
		2221	}
		2222
		2223	delete $MAP_PREFETCH{$k};
		2224	}
		2225	}
		2226	undef $MAP_PREFETCHER;
1466	}	2227	};
1467
1468	$MAP_PREFETCH{$path} = 0;
1469	$MAP_PREFETCHER->ready;	2228	$MAP_PREFETCHER->prio (6);
1470		2229
1471	()	2230	()
1472	}	2231	}
1473		2232
		2233	# common code, used by both ->save and ->swapout
1474	sub save {	2234	sub _save {
1475	my ($self) = @_;	2235	my ($self) = @_;
1476
1477	my $lock = cf::lock_acquire "map_data:" . $self->path;
1478		2236
1479	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1480		2238
1481	return unless $self->dirty;	2239	return unless $self->dirty;
1482		2240
…		…
1488	return if $self->{deny_save};	2246	return if $self->{deny_save};
1489		2247
1490	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1491		2249
1492	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1493	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1494	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1495		2256
1496	if ($uniq) {	2257	if ($uniq) {
1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1498	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1499	} else {	2260	} else {
1500	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1501	}	2262	}
1502	}	2263	}
1503		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1504	sub swap_out {	2273	sub swap_out {
1505	my ($self) = @_;	2274	my ($self) = @_;
1506		2275
1507	# save first because save cedes
1508	$self->save;
1509
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1512	return if $self->players;	2280	return if $self->players;
1513	return if $self->in_memory != cf::MAP_IN_MEMORY;
1514	return if $self->{deny_save};
1515		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1516	$self->clear;	2291	$self->clear;
1517	$self->in_memory (cf::MAP_SWAPPED);
1518	}	2292	}
1519		2293
1520	sub reset_at {	2294	sub reset_at {
1521	my ($self) = @_;	2295	my ($self) = @_;
1522		2296
1523	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
1525	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1526		2299
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		2302
…		…
1540	my ($self) = @_;	2313	my ($self) = @_;
1541		2314
1542	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2316
1544	return if $self->players;	2317	return if $self->players;
1545	return if $self->isa ("ext::map_per_player");#d#
1546		2318
1547	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1548		2330
1549	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1550		2332
1551	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1552	$self->clear;	2335	$self->clear;
1553
1554	$_->clear_links_to ($self) for values %cf::MAP;
1555		2336
1556	$self->unlink_save;	2337	$self->unlink_save;
1557	$self->destroy;	2338	$self->destroy;
1558	}	2339	}
1559		2340
1560	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1561		2342
1562	sub nuke {	2343	sub nuke {
1563	my ($self) = @_;	2344	my ($self) = @_;
1564		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1565	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1566		2350
1567	$self->unlink_save;	2351	$self->unlink_save;
1568		2352
1569	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1570	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1573	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1574		2358
1575	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1576		2361
1577	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1578	}	2399	}
1579		2400
1580	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1581		2402
1582	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1583	instantiated unique items. May block.	2404	instantiated unique items. May block.
1584		2405
1585	=cut	2406	=cut
1586		2407
1587	sub unique_maps() {	2408	sub unique_maps() {
1588	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1589	or return;	2410	map {
1590
1591	my @paths;
1592
1593	for (@$files) {
1594	utf8::decode $_;	2411	utf8::decode $_;
1595	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1596	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2414	? ()
		2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
		2417	]
		2418	}
1597		2419
		2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
1598	s/\.map$//;	2441	s/\.map$// or next;
1599	push @paths, $_;	2442	utf8::decode $_;
1600	}	2443	push @maps, "$dir/$_";
		2444	}
1601		2445
1602	\@paths	2446	push @dirs, map "$dir/$_", @$dirs;
1603	}	2447	}
1604		2448
1605	package cf;	2449	\@maps
		2450	}
1606		2451
1607	=back	2452	=back
1608		2453
1609	=head3 cf::object	2454	=head3 cf::object
1610		2455
…		…
1614		2459
1615	=over 4	2460	=over 4
1616		2461
1617	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1618		2463
1619	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1620		2466
1621	=cut	2467	=cut
1622		2468
1623	sub inv_recursive_;	2469	sub inv_recursive_;
1624	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1627		2473
1628	sub inv_recursive {	2474	sub inv_recursive {
1629	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1630	}	2476	}
1631		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1632	package cf;	2506	package cf;
1633		2507
1634	=back	2508	=back
1635		2509
1636	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1642	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1643	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1644	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1645		2519
1646	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1647		2535
1648	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1649	# with dialog boxes.	2537	# with dialog boxes.
1650	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1651	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1653		2541
1654	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1655		2543
1656	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1657	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1658	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1659	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1660	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1661	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1662	}	2569	}
1663		2570
1664	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1665		2572
1666	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1679		2586
1680	=item $player_object->enter_link	2587	=item $player_object->enter_link
1681		2588
1682	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1683		2590
1684	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1685	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1686		2595
1687	Will never block.	2596	Will never block.
1688		2597
1689	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1690		2599
…		…
1698	=cut	2607	=cut
1699		2608
1700	sub link_map {	2609	sub link_map {
1701	unless ($LINK_MAP) {	2610	unless ($LINK_MAP) {
1702	$LINK_MAP = cf::map::find "{link}"	2611	$LINK_MAP = cf::map::find "{link}"
1703	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2612	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704	$LINK_MAP->load;	2613	$LINK_MAP->load;
1705	}	2614	}
1706		2615
1707	$LINK_MAP	2616	$LINK_MAP
1708	}	2617	}
…		…
1710	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1711	my ($self) = @_;	2620	my ($self) = @_;
1712		2621
1713	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1714		2623
		2624	++$self->{_link_recursion};
		2625
1715	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1716		2627
1717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1719		2630
1720	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1721	}	2632	}
1722		2633
1723	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1724	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1725		2638
1726	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1727		2640
1728	unless ($map) {	2641	unless ($map) {
1729	# restore original map position	2642	# restore original map position
…		…
1740	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1741	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1742		2655
1743	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1744	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1745	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1746		2659
1747	$map->load;	2660	$map->load;
1748	$map->load_diag;	2661	$map->load_neighbours;
1749		2662
1750	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1751	$self->activate_recursive;	2670	$self->activate_recursive;
1752	$self->enter_map ($map, $x, $y);
1753	}
1754
1755	cf::player->attach (
1756	on_logout => sub {
1757	my ($pl) = @_;
1758
1759	# abort map switching before logout
1760	if ($pl->ob->{_link_pos}) {
1761	cf::sync_job {
1762	$pl->ob->leave_link
1763	};
1764	}
1765	},	2671	}
1766	on_login => sub {
1767	my ($pl) = @_;
1768		2672
1769	# try to abort aborted map switching on player login :)	2673	}
1770	# should happen only on crashes
1771	if ($pl->ob->{_link_pos}) {
1772	$pl->ob->enter_link;
1773	(async {
1774	# we need this sleep as the login has a concurrent enter_exit running
1775	# and this sleep increases chances of the player not ending up in scorn
1776	$pl->ob->reply (undef,
1777	"There was an internal problem at your last logout, "
1778	. "the server will try to bring you to your intended destination in a second.",
1779	cf::NDI_RED);
1780	Coro::Timer::sleep 1;
1781	$pl->ob->leave_link;
1782	})->prio (2);
1783	}
1784	},
1785	);
1786		2674
1787	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1788		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1789	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1790		2689
1791	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1792	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1793		2701
1794	$self->enter_link;	2702	$self->enter_link;
1795		2703
1796	(async {	2704	(async {
1797	my $map = cf::map::find $path;	2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
		2726	my $map = eval {
		2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1798	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
1799		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
1800	# warn "entering ", $map->path, " at ($x, $y)\n"	2732	} else {
1801	# if $map;
1802
1803	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
1804		2735
		2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
		2742	}
		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1805	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1806	})->prio (1);	2750	})->prio (1);
1807	}	2751	}
1808		2752
1809	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1810		2754
…		…
1812		2756
1813	sub parse_random_map_params {	2757	sub parse_random_map_params {
1814	my ($spec) = @_;	2758	my ($spec) = @_;
1815		2759
1816	my $rmp = { # defaults	2760	my $rmp = { # defaults
1817	xsize => -1,	2761	xsize => (cf::rndm 15, 40),
1818	ysize => -1,	2762	ysize => (cf::rndm 15, 40),
		2763	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2764	#layout => string,
1819	};	2765	};
1820		2766
1821	for (split /\n/, $spec) {	2767	for (split /\n/, $spec) {
1822	my ($k, $v) = split /\s+/, $_, 2;	2768	my ($k, $v) = split /\s+/, $_, 2;
1823		2769
…		…
1827	$rmp	2773	$rmp
1828	}	2774	}
1829		2775
1830	sub prepare_random_map {	2776	sub prepare_random_map {
1831	my ($exit) = @_;	2777	my ($exit) = @_;
1832
1833	my $guard = cf::lock_acquire "exit_prepare:$exit";
1834		2778
1835	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1836	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1837	# that depends on the exit object	2781	# that depends on the exit object
1838		2782
1839	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
1840		2784
1841	if ($exit->map) {	2785	if ($exit->map) {
1842	$rmp->{region} = $exit->map->region_name;	2786	$rmp->{region} = $exit->region->name;
1843	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1844	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1845	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1846	}	2792	}
1847		2793
1848	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1849		2795
1850	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1851	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1852	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1853		2799
1854	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1855	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1856	undef $fh;	2802	undef $fh;
1857	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1858		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1859	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1860	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1861	}	2811	}
1862	}	2812	}
1863		2813
1864	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1865	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
…		…
1867	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1868		2818
1869	$self->enter_link;	2819	$self->enter_link;
1870		2820
1871	(async {	2821	(async {
1872	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1873	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
1874	prepare_random_map $exit	2831	prepare_random_map $exit
1875	if $exit->slaying eq "/!";	2832	if $exit->slaying eq "/!";
		2833	}
1876		2834
1877	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1878	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
1879		2838
		2839	$self->goto ($map, $x, $y);
		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1880	1;	2845	1
1881	}) {	2846	}) {
1882	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1883	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1884	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
1885	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1886		2851
1887	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1888	$self->leave_link;	2853	$self->leave_link;
1889	}	2854	}
1890	})->prio (1);	2855	})->prio (1);
…		…
1903		2868
1904	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1905	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1906		2871
1907	utf8::encode $text;	2872	utf8::encode $text;
1908	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1909	}	2874	}
1910		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1911		3097
1912	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1913		3099
1914	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1915	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1916	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1917		3103
1918	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1919	reliable at some point in the future.	3105	become reliable at some point in the future.
1920		3106
1921	=cut	3107	=cut
1922		3108
1923	sub cf::client::query {	3109	sub cf::client::query {
1924	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1932	utf8::encode $text;	3118	utf8::encode $text;
1933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1934		3120
1935	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1936	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1937	}	3125	}
1938		3126
1939	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
1940	on_reply => sub {	3133	on_reply => sub {
1941	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1942		3135
1943	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
1944	# get handled first	3137	# get handled first
1945	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
1946	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
1947		3140
1948	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949		3143
1950	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
1951		3145
1952	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
1953	if (@$queue) {	3147	if (@$queue) {
…		…
1955	} else {	3149	} else {
1956	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1957	}	3151	}
1958	}	3152	}
1959	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
1960	);	3180	);
1961		3181
1962	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
1963		3183
1964	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980		3200
1981	$coro	3201	$coro
1982	}	3202	}
1983		3203
1984	cf::client->attach (	3204	cf::client->attach (
1985	on_destroy => sub {	3205	on_client_destroy => sub {
1986	my ($ns) = @_;	3206	my ($ns) = @_;
1987		3207
1988	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1989	},	3209	},
1990	);	3210	);
…		…
2005	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2006	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2007		3227
2008	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2009		3229
2010	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2011		3235
2012	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2013		3237
2014	=pod	3238	=pod
2015		3239
2016	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2017		3241
2018	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2019	cf::object::player player	3247	cf::object::player
2020	cf::player peaceful	3248	player
2021	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2022		3255
2023	=cut	3256	=cut
2024		3257
2025	for (	3258	for (
2026	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2027	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2028	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2029	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2030	) {	3265	) {
2031	no strict 'refs';	3266	no strict 'refs';
2032	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2033	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2051		3286
2052	my $qcode = $code;	3287	my $qcode = $code;
2053	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2054	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2055		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2056	local $_;	3294	local $_;
2057	local @safe::cf::_safe_eval_args = values %vars;
2058		3295
2059	my $eval =	3296	my $eval =
2060	"do {\n"	3297	"do {\n"
2061	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2062	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2063	. $code	3300	. $code
2064	. "\n}"	3301	. "\n}"
2065	;	3302	;
2066		3303
		3304	if ($CFG{safe_eval}) {
2067	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2068	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2069	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2070		3313
2071	if ($@) {	3314	if ($@) {
2072	warn "$@";	3315	warn "$@";
2073	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2074	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2093	=cut	3336	=cut
2094		3337
2095	sub register_script_function {	3338	sub register_script_function {
2096	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2097		3340
2098	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2099	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2100	}	3343	}
2101		3344
2102	=back	3345	=back
2103		3346
2104	=cut	3347	=cut
2105		3348
2106	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
2107		3351
2108	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
2109		3354
2110	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
2111	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
2112	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
2113		3358
2114	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2115	using it, it should be unique.
2116		3360
2117	=over 4	3361	warn "loading facedata from $path\n";
2118		3362
2119	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
2120		3366
2121	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
2122	modified. After modifications, you have to call C<cf::db_dirty> or
2123	C<cf::db_sync>.
2124		3368
2125	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2126		3371
2127	Returns a single value from the database	3372	# patch in the exptable
2128		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2129	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
2130		3375	type => FT_RSRC,
2131	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
2132	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
2133
2134	=item cf::db_put $family => $key => $value
2135
2136	Stores the given C<$value> in the family hash. Updates are delayed, if you
2137	want the data to be synced to disk immediately, use C<cf::db_sync>.
2138
2139	=item cf::db_dirty
2140
2141	Marks the database as dirty, to be updated at a later time.
2142
2143	=item cf::db_sync
2144
2145	Immediately write the database to disk I<if it is dirty>.
2146
2147	=cut
2148
2149	our $DB;
2150
2151	{
2152	my $path = cf::localdir . "/database.pst";
2153
2154	sub db_load() {
2155	$DB = stat $path ? Storable::retrieve $path : { };
2156	}
2157
2158	my $pid;
2159
2160	sub db_save() {
2161	waitpid $pid, 0 if $pid;
2162	if (0 == ($pid = fork)) {
2163	$DB->{_meta}{version} = 1;
2164	Storable::nstore $DB, "$path~";
2165	rename "$path~", $path;
2166	cf::_exit 0 if defined $pid;
2167	}
2168	}
2169
2170	my $dirty;
2171
2172	sub db_sync() {
2173	db_save if $dirty;
2174	undef $dirty;
2175	}
2176
2177	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2178	db_sync;
2179	});	3378	};
		3379	cf::cede_to_tick;
2180		3380
2181	sub db_dirty() {
2182	$dirty = 1;
2183	$idle->start;
2184	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
2185		3383
2186	sub db_get($;$) {	3384	while (my ($face, $info) = each %$faces) {
2187	@_ >= 2	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2188	? $DB->{$_[0]}{$_[1]}
2189	: ($DB->{$_[0]} ||= { })
2190	}
2191		3386
2192	sub db_put($$;$) {	3387	cf::face::set_visibility $idx, $info->{visibility};
2193	if (@_ >= 3) {	3388	cf::face::set_magicmap $idx, $info->{magicmap};
2194	$DB->{$_[0]}{$_[1]} = $_[2];	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2195	} else {	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2196	$DB->{$_[0]} = $_[1];
2197	}
2198	db_dirty;
2199	}
2200		3391
2201	cf::global->attach (	3392	cf::cede_to_tick;
2202	prio => 10000,
2203	on_cleanup => sub {
2204	db_sync;
2205	},	3393	}
2206	);
2207	}
2208		3394
2209	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
2210	# the server's main()	3396	next unless $info->{smooth};
2211		3397
2212	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
		3473	sub load_resource_file($) {
		3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
		3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
		3488	load_resource_file "$MAPDIR/regions"
		3489	or die "unable to load regions file\n";
		3490
		3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
		3495	}
		3496
		3497	sub reload_facedata {
		3498	load_facedata "$DATADIR/facedata"
		3499	or die "unable to load facedata\n";
		3500	}
		3501
		3502	sub reload_archetypes {
		3503	load_resource_file "$DATADIR/archetypes"
		3504	or die "unable to load archetypes\n";
		3505	}
		3506
		3507	sub reload_treasures {
		3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
		3510	}
		3511
		3512	sub reload_resources {
		3513	warn "reloading resource files...\n";
		3514
		3515	reload_facedata;
		3516	reload_archetypes;
		3517	reload_regions;
		3518	reload_treasures;
		3519
		3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2213	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2214	or return;	3527	or return;
2215		3528
2216	local $/;	3529	local $/;
2217	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2218		3531
2219	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2220		3533
2221	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2222	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2223		3536
2224	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2226	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2227	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2228	};	3541	};
2229	warn $@ if $@;	3542	warn $@ if $@;
2230	}	3543	}
		3544
		3545	warn "finished reloading resource files\n";
		3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2231	}	3574	}
2232		3575
2233	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2234	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2235	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2237	(async {	3589	(async {
2238	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2239	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2240	};	3593	};
2241		3594
2242	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
2243	db_load;	3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
		3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2244	load_extensions;	3618	load_extensions;
2245	Event::loop;	3619
		3620	utime time, time, $RUNTIMEFILE;
		3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2246	}	3633	}
2247		3634
2248	#############################################################################	3635	#############################################################################
2249	# initialisation and cleanup	3636	# initialisation and cleanup
2250		3637
2251	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2252	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2253	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2254	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2255	data => WF_AUTOCANCEL,
2256	signal => $signal,
2257	cb => sub {
2258	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2259	},
2260	);	3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
2261	}	3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
2262	}	3734	}
2263		3735
2264	sub emergency_save() {	3736	sub emergency_save() {
2265	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2266		3738
2267	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2268		3740
2269	cf::sync_job {	3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
2270	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2271	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2272	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2273	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2274	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2275	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2276	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2277	$pl->save;	3755	$pl->save;
2278	}	3756	}
2279	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2280		3758
2281	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2282	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2283	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2284	$map->valid or next;	3762	$map->valid or next;
2285	$map->save;	3763	$map->save;
2286	}	3764	}
2287	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
		3766
		3767	warn "emergency_perl_save: begin database checkpoint\n";
		3768	BDB::db_env_txn_checkpoint $DB_ENV;
		3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2288	};	3774	};
2289		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2290	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2291	}	3782	}
2292		3783
		3784	sub post_cleanup {
		3785	my ($make_core) = @_;
		3786
		3787	warn Carp::longmess "post_cleanup backtrace"
		3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
		3817	}
		3818
2293	sub reload() {	3819	sub do_reload_perl() {
2294	# can/must only be called in main	3820	# can/must only be called in main
2295	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2296	warn "can only reload from main coroutine\n";	3822	warn "can only reload from main coroutine";
2297	return;	3823	return;
2298	}	3824	}
2299		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2300	warn "reloading...";	3831	warn "reloading...";
2301		3832
2302	warn "freezing server";	3833	warn "entering sync_job";
2303	my $guard = freeze_mainloop;	3834
		3835	cf::sync_job {
		3836	cf::write_runtime_sync; # external watchdog should not bark
2304	cf::emergency_save;	3837	cf::emergency_save;
		3838	cf::write_runtime_sync; # external watchdog should not bark
2305		3839
2306	warn "sync database to disk";	3840	warn "syncing database to disk";
2307	cf::db_sync;	3841	BDB::db_env_txn_checkpoint $DB_ENV;
2308	IO::AIO::flush;
2309		3842
2310	eval {
2311	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2312		3844
2313	warn "cancel all watchers";	3845	warn "flushing outstanding aio requests";
2314	for (Event::all_watchers) {	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2315	$_->cancel if $_->data & WF_AUTOCANCEL;	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2316	}
2317
2318	warn "cancel all extension coros";
2319	$_->cancel for values %EXT_CORO;
2320	%EXT_CORO = ();
2321
2322	warn "remove commands";
2323	%COMMAND = ();
2324
2325	warn "remove ext commands";
2326	%EXTCMD = ();
2327
2328	warn "unload/nuke all extensions";
2329	for my $pkg (@EXTS) {
2330	warn "... unloading $pkg";
2331
2332	if (my $cb = $pkg->can ("unload")) {
2333	eval {
2334	$cb->($pkg);
2335	1
2336	} or warn "$pkg unloaded, but with errors: $@";
2337	}	3848	}
2338		3849
		3850	warn "cancelling all extension coros";
		3851	$_->cancel for values %EXT_CORO;
		3852	%EXT_CORO = ();
		3853
		3854	warn "removing commands";
		3855	%COMMAND = ();
		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2339	warn "... nuking $pkg";	3863	warn "... unloading $pkg";
2340	Symbol::delete_package $pkg;
2341	}
2342		3864
2343	warn "unload all perl modules loaded from $LIBDIR";
2344	while (my ($k, $v) = each %INC) {
2345	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2346
2347	warn "removing <$k>";
2348	delete $INC{$k};
2349
2350	$k =~ s/\.pm$//;
2351	$k =~ s/\//::/g;
2352
2353	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2354	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2355	}	3874	}
2356		3875
2357	Symbol::delete_package $k;	3876	warn "unloading all perl modules loaded from $LIBDIR";
		3877	while (my ($k, $v) = each %INC) {
		3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
2358	}	3891	}
2359		3892
2360	warn "get rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3896
2364	warn "unload cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2365	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2366		3900
2367	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2368	# and global variables created in xs	3902	# and global variables created in xs
2369	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2370		3904
		3905	warn "unload completed, starting to reload now";
		3906
2371	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2372	require cf;	3908	require cf;
2373	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2374		3910
2375	warn "load config and database again";	3911	warn "loading config and database again";
2376	cf::cfg_load;	3912	cf::reload_config;
2377	cf::db_load;
2378		3913
2379	warn "load extensions";	3914	warn "loading extensions";
2380	cf::load_extensions;	3915	cf::load_extensions;
2381		3916
		3917	if ($REATTACH_ON_RELOAD) {
2382	warn "reattach attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2383	_global_reattach;	3919	_global_reattach; # objects, sockets
2384	warn "reattach attachments to maps";	3920	warn "reattaching attachments to maps";
2385	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
		3922	warn "reattaching attachments to players";
		3923	reattach $_ for values %PLAYER;
		3924	}
		3925
		3926	warn "running post_init jobs";
		3927	(pop @POST_INIT)->(1) while @POST_INIT;
		3928
		3929	warn "leaving sync_job";
		3930
		3931	1
		3932	} or do {
		3933	warn $@;
		3934	cf::cleanup "error while reloading, exiting.";
		3935	};
		3936
		3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
		3943	};
		3944
		3945	our $RELOAD_WATCHER; # used only during reload
		3946
		3947	sub reload_perl() {
		3948	# doing reload synchronously and two reloads happen back-to-back,
		3949	# coro crashes during coro_state_free->destroy here.
		3950
		3951	$RELOAD_WATCHER ||= cf::async {
		3952	Coro::AIO::aio_wait cache_extensions;
		3953
		3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3955	do_reload_perl;
		3956	undef $RELOAD_WATCHER;
		3957	};
2386	};	3958	};
2387		3959	}
2388	if ($@) {
2389	warn $@;
2390	warn "error while reloading, exiting.";
2391	exit 1;
2392	}
2393
2394	warn "reloaded";
2395	};
2396
2397	our $RELOAD_WATCHER; # used only during reload
2398		3960
2399	register_command "reload" => sub {	3961	register_command "reload" => sub {
2400	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2401		3963
2402	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2403	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2404		3966	async {
2405	# doing reload synchronously and two reloads happen back-to-back,	3967	$Coro::current->{desc} = "perl_reload";
2406	# coro crashes during coro_state_free->destroy here.
2407
2408	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2409	reload;	3968	reload_perl;
2410	undef $RELOAD_WATCHER;
2411	});	3969	};
2412	}	3970	}
2413	};	3971	};
2414		3972
2415	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2416		3974
2417	$TICK_WATCHER = Event->timer (	3975	my $bug_warning = 0;
2418	reentrant => 0,
2419	prio => 0,
2420	at => $NEXT_TICK || $TICK,
2421	data => WF_AUTOCANCEL,
2422	cb => sub {
2423	$NOW = Event::time;
2424		3976
		3977	our @WAIT_FOR_TICK;
		3978	our @WAIT_FOR_TICK_BEGIN;
		3979
		3980	sub wait_for_tick {
		3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3982
		3983	my $signal = new Coro::Signal;
		3984	push @WAIT_FOR_TICK, $signal;
		3985	$signal->wait;
		3986	}
		3987
		3988	sub wait_for_tick_begin {
		3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3990
		3991	my $signal = new Coro::Signal;
		3992	push @WAIT_FOR_TICK_BEGIN, $signal;
		3993	$signal->wait;
		3994	}
		3995
		3996	sub tick {
		3997	if ($Coro::current != $Coro::main) {
		3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3999	unless ++$bug_warning > 10;
		4000	return;
		4001	}
		4002
2425	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2426	$RUNTIME += $TICK;
2427	$NEXT_TICK += $TICK;
2428		4004
2429	$WAIT_FOR_TICK->broadcast;	4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2430	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2431		4006
2432	# if we are delayed by four ticks or more, skip them all	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2433	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2434		4009	Coro::async_pool {
2435	$TICK_WATCHER->at ($NEXT_TICK);	4010	$Coro::current->{desc} = "runtime saver";
2436	$TICK_WATCHER->start;
2437	},
2438	);
2439
2440	IO::AIO::max_poll_time $TICK * 0.2;
2441
2442	$AIO_POLL_WATCHER = Event->io (
2443	fd => IO::AIO::poll_fileno,
2444	poll => 'r',
2445	prio => 5,
2446	data => WF_AUTOCANCEL,
2447	cb => \&IO::AIO::poll_cb,
2448	);
2449
2450	$WRITE_RUNTIME_WATCHER = Event->timer (
2451	data => WF_AUTOCANCEL,
2452	after => 0,
2453	interval => 10,
2454	cb => sub {
2455	(Coro::unblock_sub {
2456	write_runtime	4011	write_runtime_sync
2457	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
2458	})->();	4013	};
2459	},	4014	}
2460	);	4015
		4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4017	$sig->send;
		4018	}
		4019	while (my $sig = shift @WAIT_FOR_TICK) {
		4020	$sig->send;
		4021	}
		4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
		4031	}
		4032	}
		4033	}
		4034
		4035	{
		4036	# configure BDB
		4037
		4038	BDB::min_parallel 16;
		4039	BDB::max_poll_reqs $TICK * 0.1;
		4040	$AnyEvent::BDB::WATCHER->priority (1);
		4041
		4042	unless ($DB_ENV) {
		4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4049
		4050	cf::sync_job {
		4051	eval {
		4052	BDB::db_env_open
		4053	$DB_ENV,
		4054	$BDBDIR,
		4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4057	0666;
		4058
		4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4060	};
		4061
		4062	cf::cleanup "db_env_open(db): $@" if $@;
		4063	};
		4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
		4075	}
		4076
		4077	{
		4078	# configure IO::AIO
		4079
		4080	IO::AIO::min_parallel 8;
		4081	IO::AIO::max_poll_time $TICK * 0.1;
		4082	undef $AnyEvent::AIO::WATCHER;
		4083	}
		4084
		4085	my $_log_backtrace;
		4086
		4087	sub _log_backtrace {
		4088	my ($msg, @addr) = @_;
		4089
		4090	$msg =~ s/\n//;
		4091
		4092	# limit the # of concurrent backtraces
		4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
		4124	}
		4125	}
		4126
		4127	# load additional modules
		4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2461		4130
2462	END { cf::emergency_save }	4131	END { cf::emergency_save }
2463		4132
2464	1	4133	1
2465		4134

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