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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.206 by root, Sun Feb 11 22:27:05 2007 UTC vs.
Revision 1.524 by root, Sun Apr 18 07:08:07 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 3.5 ();	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 ();
20	use BDB ();	56	use BDB ();
21	use Data::Dumper;	57	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
27		64
28	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" };
29		80
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		82
37	our %COMMAND = ();	83	our %COMMAND = ();
38	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
39		85
40	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
44		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	93	our @EVENT;
46	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
47		96
48	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	98	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
51	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 = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	118	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
55		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
58		127
59	our %CFG;	128	our %CFG;
60		129
61	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
63		133
64	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		137
73	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
76	binmode STDOUT;	151	binmode STDOUT;
77	binmode STDERR;	152	binmode STDERR;
78		153
79	# read virtual server time, if available	154	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
84	}	159	}
85		160
86	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	162
88	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		165
93	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
94		167
95	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	sub in_main() {
		171	$Coro::current == $Coro::main
		172	}
		173
		174	#############################################################################
		175
		176	%REFLECT = ();
		177	for (@REFLECT) {
		178	my $reflect = JSON::XS::decode_json $_;
		179	$REFLECT{$reflect->{class}} = $reflect;
		180	}
		181
		182	# this is decidedly evil
		183	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
96		184
97	#############################################################################	185	#############################################################################
98		186
99	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
100		188
…		…
107	=item $cf::RUNTIME	195	=item $cf::RUNTIME
108		196
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	197	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	198	every server tick.
111		199
112	=item $cf::LIBDIR	200	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		201	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		202	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		203
114	The perl library directory, where extensions and cf-specific modules can	204	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	205	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		206	unique-items directory, player file directory, random maps directory and
		207	database environment.
116		208
117	=item $cf::NOW	209	=item $cf::NOW
118		210
119	The time of the last (current) server tick.	211	The time of the last (current) server tick.
120		212
121	=item $cf::TICK	213	=item $cf::TICK
122		214
123	The interval between server ticks, in seconds.	215	The interval between server ticks, in seconds.
124		216
		217	=item $cf::LOADAVG
		218
		219	The current CPU load on the server (alpha-smoothed), as a value between 0
		220	(none) and 1 (overloaded), indicating how much time is spent on processing
		221	objects per tick. Healthy values are < 0.5.
		222
		223	=item $cf::LOAD
		224
		225	The raw value load value from the last tick.
		226
125	=item %cf::CFG	227	=item %cf::CFG
126		228
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	230	from wherever your confdir points to.
129		231
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	232	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		233
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	234	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	235	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	236	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	237
		238	=item @cf::INVOKE_RESULTS
		239
		240	This array contains the results of the last C<invoke ()> call. When
		241	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		242	that call.
		243
		244	=item %cf::REFLECT
		245
		246	Contains, for each (C++) class name, a hash reference with information
		247	about object members (methods, scalars, arrays and flags) and other
		248	metadata, which is useful for introspection.
136		249
137	=back	250	=back
138		251
139	=cut	252	=cut
140		253
141	BEGIN {	254	$Coro::State::WARNHOOK = sub {
142	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	255	my $msg = join "", @_;
144	utf8::encode $msg;
145		256
146	$msg .= "\n"	257	$msg .= "\n"
147	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
148		259
		260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		261
149	LOG llevError, $msg;	262	LOG llevError, $msg;
150	};	263	};
151	}	264
		265	$Coro::State::DIEHOOK = sub {
		266	return unless $^S eq 0; # "eq", not "=="
		267
		268	warn Carp::longmess $_[0];
		269
		270	if (in_main) {#d#
		271	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		272	return;#d#
		273	}#d#
		274
		275	# kill coroutine otherwise
		276	Coro::terminate
		277	};
152		278
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	283	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		284	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	285	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		286
160	# we bless all objects into (empty) derived classes to force a method lookup	287	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	288	# within the Safe compartment.
162	for my $pkg (qw(	289	for my $pkg (qw(
163	cf::global cf::attachable	290	cf::global cf::attachable
164	cf::object cf::object::player	291	cf::object cf::object::player
165	cf::client cf::player	292	cf::client cf::player
166	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
167	cf::map cf::party cf::region	295	cf::party cf::region
168	)) {	296	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	298	}
172		299
173	$Event::DIED = sub {	300	$EV::DIED = sub {
174	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
175	};	302	};
		303
		304	#############################################################################
176		305
177	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
178		307
179	=over 4	308	=over 4
180		309
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	328	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	329	$d
201	} || "[unable to dump $_[0]: '$@']";	330	} || "[unable to dump $_[0]: '$@']";
202	}	331	}
203		332
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
207		334
208	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
209		336
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
218		338
219	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
220		340
221	=cut	341	=cut
222		342
223	sub to_json($) {	343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	344
225	JSON::Syck::Dump $_[0]	345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
		347
		348	=item cf::post_init { BLOCK }
		349
		350	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		351	but I<before> the server starts ticking again.
		352
		353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
		355
		356	=cut
		357
		358	sub post_init(&) {
		359	push @POST_INIT, shift;
226	}	360	}
227		361
228	=item cf::lock_wait $string	362	=item cf::lock_wait $string
229		363
230	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
231		365
232	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
233		367
234	Wait until the given lock is available and then acquires it and returns	368	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	369	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
237	returned.	371	returned.
238		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
239	Lock names should begin with a unique identifier (for example, cf::map::find	376	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	377	uses map_find and cf::map::load uses map_load).
241		378
242	=cut	379	=item $locked = cf::lock_active $string
243		380
244	our %LOCK;	381	Return true if the lock is currently active, i.e. somebody has locked it.
		382
		383	=cut
		384
		385	our $LOCKS = new Coro::SemaphoreSet;
245		386
246	sub lock_wait($) {	387	sub lock_wait($) {
247	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	389	}
255		390
256	sub lock_acquire($) {	391	sub lock_acquire($) {
257	my ($key) = @_;	392	$LOCKS->guard ($_[0])
		393	}
258		394
259	# wait, to be sure we are not locked	395	sub lock_active($) {
260	lock_wait $key;	396	$LOCKS->count ($_[0]) < 1
261
262	$LOCK{$key} = [];
263
264	Coro::guard {
265	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };
267	}
268	}	397	}
269		398
270	sub freeze_mainloop {	399	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	400	tick_inhibit_inc;
272		401
273	my $guard = Coro::guard {	402	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	403	}
275	$WRITE_RUNTIME_WATCHER->start;	404
		405	=item cf::periodic $interval, $cb
		406
		407	Like EV::periodic, but randomly selects a starting point so that the actions
		408	get spread over time.
		409
		410	=cut
		411
		412	sub periodic($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
276	};	469	}
277	$WRITE_RUNTIME_WATCHER->stop;	470	};
278	$TICK_WATCHER->stop;	471
279	$guard	472	sub get_slot($;$$) {
		473	return if tick_inhibit || $Coro::current == $Coro::main;
		474
		475	my ($time, $pri, $name) = @_;
		476
		477	$time = clamp $time, 0.01, $TICK * .6;
		478
		479	my $sig = new Coro::Signal;
		480
		481	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		482	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		483	$SLOT_QUEUE->ready;
		484	$sig->wait;
280	}	485	}
281		486
282	=item cf::async { BLOCK }	487	=item cf::async { BLOCK }
283		488
284	Currently the same as Coro::async_pool, meaning you cannot use	489	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		494
290	BEGIN { *async = \&Coro::async_pool }	495	BEGIN { *async = \&Coro::async_pool }
291		496
292	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
293		498
294	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
297		503
298	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
301	fast or be very important.	507	fast or be very important.
…		…
304		510
305	sub sync_job(&) {	511	sub sync_job(&) {
306	my ($job) = @_;	512	my ($job) = @_;
307		513
308	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
		515	my $time = AE::time;
		516
309	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
311		519
312	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	521
314	my $freeze_guard = freeze_mainloop;	522	my $freeze_guard = freeze_mainloop;
315		523
316	my $busy = 1;	524	my $busy = 1;
317	my @res;	525	my @res;
318		526
319	(async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	529	@res = eval { $job->() };
321	warn $@ if $@;	530	warn $@ if $@;
322	undef $busy;	531	undef $busy;
323	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
324		533
325	while ($busy) {	534	while ($busy) {
326	Coro::cede or Event::one_event;	535	if (Coro::nready) {
		536	Coro::cede_notself;
		537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
327	}	539	}
		540	}
		541
		542	my $time = AE::time - $time;
		543
		544	$TICK_START += $time; # do not account sync jobs to server load
328		545
329	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
330	} else {	547	} else {
331	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
332		549
…		…
352	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
353		570
354	$coro	571	$coro
355	}	572	}
356		573
357	sub write_runtime {	574	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		575
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	576	Executes the given code block with the given arguments in a seperate
361	or return;	577	process, returning the results. Everything must be serialisable with
		578	Coro::Storable. May, of course, block. Note that the executed sub may
		579	never block itself or use any form of event handling.
362		580
363	my $value = $cf::RUNTIME + 90 + 10;	581	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		582
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	583	sub fork_call(&@) {
368	and return;	584	my ($cb, @args) = @_;
369		585
370	# always fsync - this file is important	586	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	587	# otherwise perl prematurely frees the stuff :/
372	and return;	588	# TODO: investigate and fix (likely this will be rather laborious)
373		589
374	close $fh	590	my @res = Coro::Util::fork_eval {
375	or return;	591	reset_signals;
		592	&$cb
		593	}, @args;
376		594
377	aio_rename "$runtime~", $runtime	595	wantarray ? @res : $res[-1]
378	and return;	596	}
379		597
		598	sub objinfo {
380	1	599	(
		600	"counter value" => cf::object::object_count,
		601	"objects created" => cf::object::create_count,
		602	"objects destroyed" => cf::object::destroy_count,
		603	"freelist size" => cf::object::free_count,
		604	"allocated objects" => cf::object::objects_size,
		605	"active objects" => cf::object::actives_size,
		606	)
		607	}
		608
		609	=item $coin = coin_from_name $name
		610
		611	=cut
		612
		613	our %coin_alias = (
		614	"silver" => "silvercoin",
		615	"silvercoin" => "silvercoin",
		616	"silvercoins" => "silvercoin",
		617	"gold" => "goldcoin",
		618	"goldcoin" => "goldcoin",
		619	"goldcoins" => "goldcoin",
		620	"platinum" => "platinacoin",
		621	"platinumcoin" => "platinacoin",
		622	"platinumcoins" => "platinacoin",
		623	"platina" => "platinacoin",
		624	"platinacoin" => "platinacoin",
		625	"platinacoins" => "platinacoin",
		626	"royalty" => "royalty",
		627	"royalties" => "royalty",
		628	);
		629
		630	sub coin_from_name($) {
		631	$coin_alias{$_[0]}
		632	? cf::arch::find $coin_alias{$_[0]}
		633	: undef
		634	}
		635
		636	=item $value = cf::db_get $family => $key
		637
		638	Returns a single value from the environment database.
		639
		640	=item cf::db_put $family => $key => $value
		641
		642	Stores the given C<$value> in the family. It can currently store binary
		643	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		644
		645	=item $db = cf::db_table "name"
		646
		647	Create and/or open a new database table. The string must not be "db" and must be unique
		648	within each server.
		649
		650	=cut
		651
		652	sub db_table($) {
		653	my ($name) = @_;
		654	my $db = BDB::db_create $DB_ENV;
		655
		656	eval {
		657	$db->set_flags (BDB::CHKSUM);
		658
		659	utf8::encode $name;
		660	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		661	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		662	cf::cleanup "db_open(db): $!" if $!;
		663	};
		664	cf::cleanup "db_open(db): $@" if $@;
		665
		666	$db
		667	}
		668
		669	our $DB;
		670
		671	sub db_init {
		672	cf::sync_job {
		673	$DB ||= db_table "db";
		674	};
		675	}
		676
		677	sub db_get($$) {
		678	my $key = "$_[0]/$_[1]";
		679
		680	cf::sync_job {
		681	BDB::db_get $DB, undef, $key, my $data;
		682
		683	$! ? ()
		684	: $data
		685	}
		686	}
		687
		688	sub db_put($$$) {
		689	BDB::dbreq_pri 4;
		690	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		691	}
		692
		693	=item cf::cache $id => [$paths...], $processversion => $process
		694
		695	Generic caching function that returns the value of the resource $id,
		696	caching and regenerating as required.
		697
		698	This function can block.
		699
		700	=cut
		701
		702	sub cache {
		703	my ($id, $src, $processversion, $process) = @_;
		704
		705	my $meta =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	aio_stat $_
		710	and Carp::croak "$_: $!";
		711
		712	($_, (stat _)[7,9])
		713	} @$src;
		714
		715	my $dbmeta = db_get cache => "$id/meta";
		716	if ($dbmeta ne $meta) {
		717	# changed, we may need to process
		718
		719	my @data;
		720	my $md5;
		721
		722	for (0 .. $#$src) {
		723	0 <= aio_load $src->[$_], $data[$_]
		724	or Carp::croak "$src->[$_]: $!";
		725	}
		726
		727	# if processing is expensive, check
		728	# checksum first
		729	if (1) {
		730	$md5 =
		731	join "\x00",
		732	$processversion,
		733	map {
		734	cf::cede_to_tick;
		735	($src->[$_], Digest::MD5::md5_hex $data[$_])
		736	} 0.. $#$src;
		737
		738
		739	my $dbmd5 = db_get cache => "$id/md5";
		740	if ($dbmd5 eq $md5) {
		741	db_put cache => "$id/meta", $meta;
		742
		743	return db_get cache => "$id/data";
		744	}
		745	}
		746
		747	my $t1 = Time::HiRes::time;
		748	my $data = $process->(\@data);
		749	my $t2 = Time::HiRes::time;
		750
		751	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		752
		753	db_put cache => "$id/data", $data;
		754	db_put cache => "$id/md5" , $md5;
		755	db_put cache => "$id/meta", $meta;
		756
		757	return $data;
		758	}
		759
		760	db_get cache => "$id/data"
		761	}
		762
		763	=item cf::datalog type => key => value, ...
		764
		765	Log a datalog packet of the given type with the given key-value pairs.
		766
		767	=cut
		768
		769	sub datalog($@) {
		770	my ($type, %kv) = @_;
		771	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	772	}
382		773
383	=back	774	=back
384		775
385	=cut	776	=cut
386		777
387	#############################################################################	778	#############################################################################
388		779
389	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
390		781
391	Many objects in crossfire are so-called attachable objects. That means you can	782	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	783	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
394		785
395	In the following description, CLASS can be any of C<global>, C<object>	786	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	787	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	788	Deliantra).
398		789
399	=over 4	790	=over 4
400		791
401	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
402		793
…		…
446	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
447		838
448	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
450		841
451	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	843	that are attached at load/instantiate time, thus the need for a name.
453		844
454	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
455		846
456	=over 4	847	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	956	$registry = $CB_TYPE[$object_type] ||= [];
566		957
567	} elsif ($type eq "subtype") {	958	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	959	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	960	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	961	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		962
572	} elsif ($type eq "package") {	963	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	964	my $pkg = shift @arg;
574		965
575	while (my ($name, $id) = each %cb_id) {	966	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
605	}	996	}
606		997
607	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
608	} else {	999	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	1001	}
611		1002
612	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
613	}	1004	}
614		1005
…		…
616	if (ref $_[0]) {	1007	if (ref $_[0]) {
617	_object_attach @_;	1008	_object_attach @_;
618	} else {	1009	} else {
619	_attach shift->_attach_registry, @_;	1010	_attach shift->_attach_registry, @_;
620	}	1011	}
		1012	_recalc_want;
621	};	1013	};
622		1014
623	# all those should be optimised	1015	# all those should be optimised
624	sub cf::attachable::detach {	1016	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1017	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1020	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1021	reattach ($obj);
630	} else {	1022	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1023	Carp::croak "cannot, currently, detach class attachments";
632	}	1024	}
		1025	_recalc_want;
633	};	1026	};
634		1027
635	sub cf::attachable::attached {	1028	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1029	my ($obj, $name) = @_;
637		1030
…		…
652	";	1045	";
653	die if $@;	1046	die if $@;
654	}	1047	}
655		1048
656	our $override;	1049	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1050	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1051
659	sub override {	1052	sub override {
660	$override = 1;	1053	$override = 1;
661	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
662	}	1055	}
663		1056
664	sub do_invoke {	1057	sub do_invoke {
665	my $event = shift;	1058	my $event = shift;
666	my $callbacks = shift;	1059	my $callbacks = shift;
667		1060
668	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
669		1062
670	local $override;	1063	local $override;
671		1064
672	for (@$callbacks) {	1065	for (@$callbacks) {
673	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
682	}	1075	}
683		1076
684	0	1077	0
685	}	1078	}
686		1079
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1081
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1083
691	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
692		1085
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1086	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1087	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1089
697	=back	1090	=back
698		1091
699	=cut	1092	=cut
700		1093
701	#############################################################################	1094	#############################################################################
702	# object support	1095	# object support
		1096
		1097	sub _object_equal($$);
		1098	sub _object_equal($$) {
		1099	my ($a, $b) = @_;
		1100
		1101	return 0 unless (ref $a) eq (ref $b);
		1102
		1103	if ("HASH" eq ref $a) {
		1104	my @ka = keys %$a;
		1105	my @kb = keys %$b;
		1106
		1107	return 0 if @ka != @kb;
		1108
		1109	for (0 .. $#ka) {
		1110	return 0 unless $ka[$_] eq $kb[$_];
		1111	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1112	}
		1113
		1114	} elsif ("ARRAY" eq ref $a) {
		1115
		1116	return 0 if @$a != @$b;
		1117
		1118	for (0 .. $#$a) {
		1119	return 0 unless _object_equal $a->[$_], $b->[$_];
		1120	}
		1121
		1122	} elsif ($a ne $b) {
		1123	return 0;
		1124	}
		1125
		1126	1
		1127	}
		1128
		1129	our $SLOW_MERGES;#d#
		1130	sub _can_merge {
		1131	my ($ob1, $ob2) = @_;
		1132
		1133	++$SLOW_MERGES;#d#
		1134
		1135	# we do the slow way here
		1136	return _object_equal $ob1, $ob2
		1137	}
703		1138
704	sub reattach {	1139	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1141	my ($obj) = @_;
707		1142
		1143	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1144	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1145
710	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
711		1147
712	@$registry = ();	1148	@$registry = ();
713		1149
…		…
728	cf::attachable->attach (	1164	cf::attachable->attach (
729	prio => -1000000,	1165	prio => -1000000,
730	on_instantiate => sub {	1166	on_instantiate => sub {
731	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
732		1168
733	$data = from_json $data;	1169	$data = decode_json $data;
734		1170
735	for (@$data) {	1171	for (@$data) {
736	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
737		1173
738	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1190	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
756		1192
757	sync_job {	1193	sync_job {
758	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
761		1198
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1201	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1202	if ($cf::USE_FSYNC) {
		1203	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;
		1204	aio_fsync $fh;
		1205	}
766	close $fh;	1206	aio_close $fh;
767		1207
768	if (@$objs) {	1208	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1209	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1212	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1213	if ($cf::USE_FSYNC) {
		1214	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;
		1215	aio_fsync $fh;
		1216	}
774	close $fh;	1217	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
776	}	1219	}
777	} else {	1220	} else {
778	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
779	}	1222	}
780		1223
781	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1228	} else {
783	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
784	}	1230	}
785	} else {	1231	} else {
786	aio_unlink $filename;	1232	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
788	}	1234	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1235	};
796	}	1236	}
797		1237
798	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
800		1240
…		…
805		1245
806	sub object_thawer_load {	1246	sub object_thawer_load {
807	my ($filename) = @_;	1247	my ($filename) = @_;
808		1248
809	my ($data, $av);	1249	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1250
814	(aio_load $filename, $data) >= 0	1251	(aio_load $filename, $data) >= 0
815	or return;	1252	or return;
816		1253
817	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
819	or return;	1256	or return;
		1257
820	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
821	}	1260	}
822		1261
		1262	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1264	$decname, length $data, scalar @{$av || []};
		1265
825	return ($data, $av);	1266	($data, $av)
826	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
827		1274
828	#############################################################################	1275	#############################################################################
829	# command handling &c	1276	# command handling &c
830		1277
831	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1292	}
846		1293
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1295
849	Register a callbackf ro execution when the client sends an extcmd packet.	1296	Register a callback for execution when the client sends an (synchronous)
		1297	extcmd packet. Ext commands will be processed in the order they are
		1298	received by the server, like other user commands. The first argument is
		1299	the logged-in player. Ext commands can only be processed after a player
		1300	has logged in successfully.
850		1301
851	If the callback returns something, it is sent back as if reply was being	1302	If the callback returns something, it is sent back as if reply was being
852	called.	1303	called.
853		1304
		1305	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1306
		1307	Register a callback for execution when the client sends an (asynchronous)
		1308	exticmd packet. Exti commands are processed by the server as soon as they
		1309	are received, i.e. out of order w.r.t. other commands. The first argument
		1310	is a client socket. Exti commands can be received anytime, even before
		1311	log-in.
		1312
		1313	If the callback returns something, it is sent back as if reply was being
		1314	called.
		1315
854	=cut	1316	=cut
855		1317
856	sub register_extcmd {	1318	sub register_extcmd {
857	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
858		1320
859	$EXTCMD{$name} = $cb;	1321	$EXTCMD{$name} = $cb;
860	}	1322	}
861		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
		1331
862	cf::player->attach (	1332	cf::player->attach (
863	on_command => sub {	1333	on_unknown_command => sub {
864	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
865		1335
866	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
867	or return;	1337	or return;
868		1338
…		…
873	cf::override;	1343	cf::override;
874	},	1344	},
875	on_extcmd => sub {	1345	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
877		1347
878	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1349
880	if (ref $msg) {	1350	if (ref $msg) {
		1351	my ($type, $reply, @payload) =
		1352	"ARRAY" eq ref $msg
		1353	? @$msg
		1354	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1355
		1356	my @reply;
		1357
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
886	} else {	1365	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1367	}
889		1368
890	cf::override;	1369	cf::override;
891	},	1370	},
892	);	1371	);
893		1372
		1373	# "readahead" all extensions
894	sub load_extension {	1374	sub cache_extensions {
895	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
896		1376
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1380	}
922	die $@;
923	}	1381	};
924		1382
925	push @EXTS, $pkg;	1383	$grp
926	}	1384	}
927		1385
928	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
929	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1391	next unless -r $path;
931	eval {	1392
932	load_extension $ext;	1393	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1394	my $base = $1;
		1395	my $pkg = $1;
		1396	$pkg =~ s/[^[:word:]]/_/g;
		1397	$pkg = "ext::$pkg";
		1398
		1399	open my $fh, "<:utf8", $path
		1400	or die "$path: $!";
		1401
		1402	my $source = do { local $/; <$fh> };
		1403
		1404	my %ext = (
		1405	path => $path,
		1406	base => $base,
		1407	pkg => $pkg,
		1408	);
		1409
		1410	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1411	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1412
		1413	$ext{source} =
		1414	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1415	. "#line 1 \"$path\"\n{\n"
		1416	. $source
		1417	. "\n};\n1";
		1418
		1419	$todo{$base} = \%ext;
		1420	}
		1421
		1422	my $pass = 0;
		1423	my %done;
		1424	while (%todo) {
		1425	my $progress;
		1426
		1427	++$pass;
		1428
		1429	ext:
		1430	while (my ($k, $v) = each %todo) {
		1431	for (split /,\s*/, $v->{meta}{depends}) {
		1432	next ext
		1433	unless exists $done{$_};
		1434	}
		1435
		1436	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1437
		1438	my $active = eval $v->{source};
		1439
		1440	if (length $@) {
		1441	warn "$v->{path}: $@\n";
		1442
		1443	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1444	if exists $v->{meta}{mandatory};
		1445
		1446	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1447	delete $todo{$k};
		1448	} else {
		1449	$done{$k} = delete $todo{$k};
		1450	push @EXTS, $v->{pkg};
		1451	$progress = 1;
		1452
		1453	warn "$v->{base}: extension inactive.\n"
		1454	unless $active;
		1455	}
933	1	1456	}
934	} or warn "$ext not loaded: $@";	1457
		1458	unless ($progress) {
		1459	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1460
		1461	while (my ($k, $v) = each %todo) {
		1462	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464	}
		1465	}
		1466	}
935	}	1467	};
936	}	1468	}
937		1469
938	#############################################################################	1470	#############################################################################
939		1471
		1472	=back
		1473
940	=head2 CORE EXTENSIONS	1474	=head2 CORE EXTENSIONS
941		1475
942	Functions and methods that extend core crossfire objects.	1476	Functions and methods that extend core deliantra objects.
943		1477
944	=cut	1478	=cut
945		1479
946	package cf::player;	1480	package cf::player;
947		1481
…		…
949		1483
950	=head3 cf::player	1484	=head3 cf::player
951		1485
952	=over 4	1486	=over 4
953		1487
		1488	=item cf::player::num_playing
		1489
		1490	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1491
		1492	=cut
		1493
		1494	sub num_playing {
		1495	scalar grep
		1496	$_->ob->map
		1497	&& !$_->hidden
		1498	&& !$_->ob->flag (cf::FLAG_WIZ),
		1499	cf::player::list
		1500	}
		1501
954	=item cf::player::find $login	1502	=item cf::player::find $login
955		1503
956	Returns the given player object, loading it if necessary (might block).	1504	Returns the given player object, loading it if necessary (might block).
957		1505
958	=cut	1506	=cut
959		1507
960	sub playerdir($) {	1508	sub playerdir($) {
961	cf::localdir	1509	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1510	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1511	}
967		1512
968	sub path($) {	1513	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1514	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1515
971	(playerdir $login) . "/$login.pl"	1516	(playerdir $login) . "/playerdata"
972	}	1517	}
973		1518
974	sub find_active($) {	1519	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1520	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1521	and $cf::PLAYER{$_[0]}->active
…		…
979		1524
980	sub exists($) {	1525	sub exists($) {
981	my ($login) = @_;	1526	my ($login) = @_;
982		1527
983	$cf::PLAYER{$login}	1528	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1529	or !aio_stat path $login
985	}	1530	}
986		1531
987	sub find($) {	1532	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1533	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1534	my $login = $_[0];
990		1535
991	my $guard = cf::lock_acquire "user_find:$login";	1536	my $guard = cf::lock_acquire "user_find:$login";
992		1537
993	$cf::PLAYER{$_[0]} || do {	1538	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1539	# rename old playerfiles to new ones
		1540	#TODO: remove when no longer required
		1541	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1542	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1543	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1544	aio_unlink +(playerdir $login) . "/$login.pl";
		1545
		1546	my $f = new_from_file cf::object::thawer path $login
995	or return;	1547	or return;
		1548
		1549	my $pl = cf::player::load_pl $f
		1550	or return;
		1551
		1552	local $cf::PLAYER_LOADING{$login} = $pl;
		1553	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1554	$cf::PLAYER{$login} = $pl
997	}	1555	}
998	}	1556	}
999	}	1557	}
		1558
		1559	cf::player->attach (
		1560	on_load => sub {
		1561	my ($pl, $path) = @_;
		1562
		1563	# restore slots saved in save, below
		1564	my $slots = delete $pl->{_slots};
		1565
		1566	$pl->ob->current_weapon ($slots->[0]);
		1567	$pl->combat_ob ($slots->[1]);
		1568	$pl->ranged_ob ($slots->[2]);
		1569	},
		1570	);
1000		1571
1001	sub save($) {	1572	sub save($) {
1002	my ($pl) = @_;	1573	my ($pl) = @_;
1003		1574
1004	return if $pl->{deny_save};	1575	return if $pl->{deny_save};
…		…
1009	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
1010		1581
1011	aio_mkdir playerdir $pl, 0770;	1582	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1583	$pl->{last_save} = $cf::RUNTIME;
1013		1584
		1585	cf::get_slot 0.01;
		1586
		1587	# save slots, to be restored later
		1588	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1589
1014	$pl->save_pl ($path);	1590	$pl->save_pl ($path);
1015	Coro::cede;	1591	cf::cede_to_tick;
1016	}	1592	}
1017		1593
1018	sub new($) {	1594	sub new($) {
1019	my ($login) = @_;	1595	my ($login) = @_;
1020		1596
…		…
1026	$cf::PLAYER{$login} = $self;	1602	$cf::PLAYER{$login} = $self;
1027		1603
1028	$self	1604	$self
1029	}	1605	}
1030		1606
		1607	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1608
		1609	=cut
		1610
		1611	sub send_msg {
		1612	my $ns = shift->ns
		1613	or return;
		1614	$ns->send_msg (@_);
		1615	}
		1616
1031	=item $pl->quit_character	1617	=item $pl->quit_character
1032		1618
1033	Nukes the player without looking back. If logged in, the connection will	1619	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1620	be destroyed. May block for a long time.
1035		1621
1036	=cut	1622	=cut
1037		1623
1038	sub quit_character {	1624	sub quit_character {
1039	my ($pl) = @_;	1625	my ($pl) = @_;
1040		1626
		1627	my $name = $pl->ob->name;
		1628
1041	$pl->{deny_save} = 1;	1629	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1630	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1631
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1632	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1633	$pl->deactivate;
		1634	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1635	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1636	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1637	$pl->ns->destroy if $pl->ns;
1048		1638
1049	my $path = playerdir $pl;	1639	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1640	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1641	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1642	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1643	$pl->destroy;
		1644
		1645	my $prefix = qr<^~\Q$name\E/>;
		1646
		1647	# nuke player maps
		1648	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1649
1054	IO::AIO::aio_rmtree $temp;	1650	IO::AIO::aio_rmtree $temp;
		1651	}
		1652
		1653	=item $pl->kick
		1654
		1655	Kicks a player out of the game. This destroys the connection.
		1656
		1657	=cut
		1658
		1659	sub kick {
		1660	my ($pl, $kicker) = @_;
		1661
		1662	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1663	$pl->killer ("kicked");
		1664	$pl->ns->destroy;
1055	}	1665	}
1056		1666
1057	=item cf::player::list_logins	1667	=item cf::player::list_logins
1058		1668
1059	Returns am arrayref of all valid playernames in the system, can take a	1669	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1670	while and may block, so not sync_job-capable, ever.
1061		1671
1062	=cut	1672	=cut
1063		1673
1064	sub list_logins {	1674	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1675	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1676	or return [];
1067		1677
1068	my @logins;	1678	my @logins;
1069		1679
1070	for my $login (@$dirs) {	1680	for my $login (@$dirs) {
		1681	my $path = path $login;
		1682
		1683	# a .pst is a dead give-away for a valid player
		1684	# if no pst file found, open and chekc for blocked users
		1685	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1686	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1687	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1688	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1689	}
1074		1690
1075	utf8::decode $login;	1691	utf8::decode $login;
1076	push @logins, $login;	1692	push @logins, $login;
1077	}	1693	}
1078		1694
1079	\@logins	1695	\@logins
1080	}	1696	}
1081		1697
1082	=item $player->maps	1698	=item $player->maps
		1699
		1700	=item cf::player::maps $login
1083		1701
1084	Returns an arrayref of map paths that are private for this	1702	Returns an arrayref of map paths that are private for this
1085	player. May block.	1703	player. May block.
1086		1704
1087	=cut	1705	=cut
…		…
1105	}	1723	}
1106		1724
1107	\@paths	1725	\@paths
1108	}	1726	}
1109		1727
		1728	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1729
		1730	Expand deliantra pod fragments into protocol xml.
		1731
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1732	=item $player->ext_reply ($msgid, @msg)
1111		1733
1112	Sends an ext reply to the player.	1734	Sends an ext reply to the player.
1113		1735
1114	=cut	1736	=cut
1115		1737
1116	sub ext_reply($$$%) {	1738	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1739	my ($self, $id, @msg) = @_;
1118		1740
1119	$msg{msgid} = $id;	1741	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1742	}
1123		1743
1124	package cf;	1744	=item $player->ext_msg ($type, @msg)
		1745
		1746	Sends an ext event to the client.
		1747
		1748	=cut
		1749
		1750	sub ext_msg($$@) {
		1751	my ($self, $type, @msg) = @_;
		1752
		1753	$self->ns->ext_msg ($type, @msg);
		1754	}
		1755
		1756	=head3 cf::region
		1757
		1758	=over 4
		1759
		1760	=cut
		1761
		1762	package cf::region;
		1763
		1764	=item cf::region::find_by_path $path
		1765
		1766	Tries to decuce the likely region for a map knowing only its path.
		1767
		1768	=cut
		1769
		1770	sub find_by_path($) {
		1771	my ($path) = @_;
		1772
		1773	$path =~ s/^~[^\/]*//; # skip ~login
		1774
		1775	my ($match, $specificity);
		1776
		1777	for my $region (list) {
		1778	if ($region->{match} && $path =~ $region->{match}) {
		1779	($match, $specificity) = ($region, $region->specificity)
		1780	if $region->specificity > $specificity;
		1781	}
		1782	}
		1783
		1784	$match
		1785	}
1125		1786
1126	=back	1787	=back
1127
1128		1788
1129	=head3 cf::map	1789	=head3 cf::map
1130		1790
1131	=over 4	1791	=over 4
1132		1792
…		…
1144	our $MAX_RESET = 3600;	1804	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1805	our $DEFAULT_RESET = 3000;
1146		1806
1147	sub generate_random_map {	1807	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1808	my ($self, $rmp) = @_;
		1809
		1810	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1811
1149	# mit "rum" bekleckern, nicht	1812	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1813	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1814	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1815	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1816	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1817	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1818	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1819	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1820	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1179		1842
1180	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1843	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1181	}	1844	}
1182		1845
1183	# also paths starting with '/'	1846	# also paths starting with '/'
1184	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1847	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1185		1848
1186	sub thawer_merge {	1849	sub thawer_merge {
1187	my ($self, $merge) = @_;	1850	my ($self, $merge) = @_;
1188		1851
1189	# we have to keep some variables in memory intact	1852	# we have to keep some variables in memory intact
1190	local $self->{path};	1853	local $self->{path};
1191	local $self->{load_path};	1854	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1855
1195	$self->SUPER::thawer_merge ($merge);	1856	$self->SUPER::thawer_merge ($merge);
1196	}	1857	}
1197		1858
1198	sub normalise {	1859	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1906	$self->init; # pass $1 etc.
1246	return $self;	1907	return $self;
1247	}	1908	}
1248	}	1909	}
1249		1910
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1911	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1912	()
1252	}	1913	}
1253		1914
1254	sub init {	1915	sub init {
1255	my ($self) = @_;	1916	my ($self) = @_;
…		…
1270		1931
1271	# the original (read-only) location	1932	# the original (read-only) location
1272	sub load_path {	1933	sub load_path {
1273	my ($self) = @_;	1934	my ($self) = @_;
1274		1935
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1936	"$MAPDIR/$self->{path}.map"
1276	}	1937	}
1277		1938
1278	# the temporary/swap location	1939	# the temporary/swap location
1279	sub save_path {	1940	sub save_path {
1280	my ($self) = @_;	1941	my ($self) = @_;
1281		1942
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1943	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1944	"$TMPDIR/$path.map"
1284	}	1945	}
1285		1946
1286	# the unique path, undef == no special unique path	1947	# the unique path, undef == no special unique path
1287	sub uniq_path {	1948	sub uniq_path {
1288	my ($self) = @_;	1949	my ($self) = @_;
1289		1950
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1951	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1952	"$UNIQUEDIR/$path"
1292	}	1953	}
1293		1954
1294	# and all this just because we cannot iterate over	1955	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1956	my ($self) = @_;
1298		1957
1299	$_->change_map_light ($change)	1958	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1959
		1960	$self->do_decay_objects;
1301	}	1961	}
1302		1962
1303	sub unlink_save {	1963	sub unlink_save {
1304	my ($self) = @_;	1964	my ($self) = @_;
1305		1965
1306	utf8::encode (my $save = $self->save_path);	1966	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1967	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1968	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1969	}
1315		1970
1316	sub load_header_from($) {	1971	sub load_header_from($) {
1317	my ($self, $path) = @_;	1972	my ($self, $path) = @_;
1318		1973
1319	utf8::encode $path;	1974	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1975	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1976	or return;
		1977
		1978	$self->_load_header ($f)
		1979	or return;
		1980
		1981	local $MAP_LOADING{$self->{path}} = $self;
		1982	$f->resolve_delayed_derefs;
1325		1983
1326	$self->{load_path} = $path;	1984	$self->{load_path} = $path;
1327		1985
1328	1	1986	1
1329	}	1987	}
…		…
1368	$self->load_header_orig	2026	$self->load_header_orig
1369	or return;	2027	or return;
1370	$self->prepare_orig;	2028	$self->prepare_orig;
1371	}	2029	}
1372		2030
		2031	$self->{deny_reset} = 1
		2032	if $self->no_reset;
		2033
		2034	$self->default_region (cf::region::find_by_path $self->{path})
		2035	unless $self->default_region;
		2036
1373	1	2037	1
1374	}	2038	}
1375		2039
1376	sub find;	2040	sub find;
1377	sub find {	2041	sub find {
1378	my ($path, $origin) = @_;	2042	my ($path, $origin) = @_;
1379		2043
1380	$path = normalise $path, $origin && $origin->path;	2044	$path = normalise $path, $origin && $origin->path;
1381		2045
		2046	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	2047	my $guard2 = cf::lock_acquire "map_find:$path";
1383		2048
1384	$cf::MAP{$path} || do {	2049	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	2050	my $map = new_from_path cf::map $path
1387	or return;	2051	or return;
1388		2052
1389	$map->{last_save} = $cf::RUNTIME;	2053	$map->{last_save} = $cf::RUNTIME;
1390		2054
1391	$map->load_header	2055	$map->load_header
1392	or return;	2056	or return;
1393		2057
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2058	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2059	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2060	#$cf::WAIT_FOR_TICK->wait;
		2061	undef $guard2;
		2062	undef $guard1;
1397	$map->reset;	2063	$map->reset;
1398	undef $guard;
1399	return find $path;	2064	return find $path;
1400	}	2065	}
1401		2066
1402	$cf::MAP{$path} = $map	2067	$cf::MAP{$path} = $map
1403	}	2068	}
1404	}	2069	}
1405		2070
1406	sub pre_load { }	2071	sub pre_load { }
1407	sub post_load { }	2072	#sub post_load { } # XS
1408		2073
1409	sub load {	2074	sub load {
1410	my ($self) = @_;	2075	my ($self) = @_;
1411		2076
1412	local $self->{deny_reset} = 1; # loading can take a long time	2077	local $self->{deny_reset} = 1; # loading can take a long time
1413		2078
1414	my $path = $self->{path};	2079	my $path = $self->{path};
		2080
		2081	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2082	my $guard = cf::lock_acquire "map_data:$path";
1416		2083
		2084	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2085	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2086
1419	$self->in_memory (cf::MAP_LOADING);	2087	$self->in_memory (cf::MAP_LOADING);
1420		2088
1421	$self->alloc;	2089	$self->alloc;
1422		2090
1423	$self->pre_load;	2091	$self->pre_load;
		2092	cf::cede_to_tick;
1424		2093
1425	$self->_load_objects ($self->{load_path}, 1)	2094	my $f = new_from_file cf::object::thawer $self->{load_path};
		2095	$f->skip_block;
		2096	$self->_load_objects ($f)
1426	or return;	2097	or return;
1427		2098
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2099	$self->post_load_original
1429	if delete $self->{load_original};	2100	if delete $self->{load_original};
1430		2101
1431	if (my $uniq = $self->uniq_path) {	2102	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2103	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2104	unless (aio_stat $uniq) {
		2105	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2106	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2107	$self->_load_objects ($f);
		2108	$f->resolve_delayed_derefs;
		2109	}
1436	}	2110	}
1437	}	2111	}
1438		2112
1439	Coro::cede;	2113	$f->resolve_delayed_derefs;
1440		2114
		2115	cf::cede_to_tick;
1441	# now do the right thing for maps	2116	# now do the right thing for maps
1442	$self->link_multipart_objects;	2117	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2118	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2119	unless $self->difficulty;
1452	Coro::cede;	2120	cf::cede_to_tick;
		2121
		2122	unless ($self->{deny_activate}) {
		2123	$self->decay_objects;
		2124	$self->fix_auto_apply;
		2125	$self->update_buttons;
		2126	cf::cede_to_tick;
1453	$self->activate;	2127	$self->activate;
		2128	}
		2129
		2130	$self->{last_save} = $cf::RUNTIME;
		2131	$self->last_access ($cf::RUNTIME);
		2132
		2133	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2134	}
1455		2135
1456	$self->post_load;	2136	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2137	}
1460		2138
		2139	# customize the map for a given player, i.e.
		2140	# return the _real_ map. used by e.g. per-player
		2141	# maps to change the path to ~playername/mappath
1461	sub customise_for {	2142	sub customise_for {
1462	my ($self, $ob) = @_;	2143	my ($self, $ob) = @_;
1463		2144
1464	return find "~" . $ob->name . "/" . $self->{path}	2145	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2146	if $self->per_player;
1466		2147
		2148	# return find "?party/" . $ob->name . "/" . $self->{path}
		2149	# if $self->per_party;
		2150
1467	$self	2151	$self
1468	}	2152	}
1469		2153
1470	# find and load all maps in the 3x3 area around a map	2154	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2155	sub load_neighbours {
1472	my ($map) = @_;	2156	my ($map) = @_;
1473		2157
1474	my @diag; # diagonal neighbours	2158	my @neigh; # diagonal neighbours
1475		2159
1476	for (0 .. 3) {	2160	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2161	my $neigh = $map->tile_path ($_)
1478	or next;	2162	or next;
1479	$neigh = find $neigh, $map	2163	$neigh = find $neigh, $map
1480	or next;	2164	or next;
1481	$neigh->load;	2165	$neigh->load;
1482		2166
		2167	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2168	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2169	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2170	}
1486		2171
1487	for (@diag) {	2172	for (grep defined $_->[0], @neigh) {
		2173	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2174	my $neigh = find $path, $origin
1489	or next;	2175	or next;
1490	$neigh->load;	2176	$neigh->load;
1491	}	2177	}
1492	}	2178	}
1493		2179
…		…
1498	}	2184	}
1499		2185
1500	sub do_load_sync {	2186	sub do_load_sync {
1501	my ($map) = @_;	2187	my ($map) = @_;
1502		2188
		2189	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2190	if $Coro::current == $Coro::main;
		2191
1503	cf::sync_job { $map->load };	2192	cf::sync_job { $map->load };
1504	}	2193	}
1505		2194
1506	our %MAP_PREFETCH;	2195	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2196	our $MAP_PREFETCHER = undef;
1508		2197
1509	sub find_async {	2198	sub find_async {
1510	my ($path, $origin) = @_;	2199	my ($path, $origin, $load) = @_;
1511		2200
1512	$path = normalise $path, $origin && $origin->{path};	2201	$path = normalise $path, $origin && $origin->{path};
1513		2202
1514	if (my $map = $cf::MAP{$path}) {	2203	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2204	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2205	}
1517		2206
1518	undef $MAP_PREFETCH{$path};	2207	$MAP_PREFETCH{$path} |= $load;
		2208
1519	$MAP_PREFETCHER ||= cf::async {	2209	$MAP_PREFETCHER ||= cf::async {
		2210	$Coro::current->{desc} = "map prefetcher";
		2211
1520	while (%MAP_PREFETCH) {	2212	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2213	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2214	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2215	$map->load if $v;
		2216	}
1525		2217
1526	delete $MAP_PREFETCH{$path};	2218	delete $MAP_PREFETCH{$k};
1527	}	2219	}
1528	}	2220	}
1529	undef $MAP_PREFETCHER;	2221	undef $MAP_PREFETCHER;
1530	};	2222	};
1531	$MAP_PREFETCHER->prio (6);	2223	$MAP_PREFETCHER->prio (6);
1532		2224
1533	()	2225	()
1534	}	2226	}
1535		2227
		2228	# common code, used by both ->save and ->swapout
1536	sub save {	2229	sub _save {
1537	my ($self) = @_;	2230	my ($self) = @_;
1538
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
1540		2231
1541	$self->{last_save} = $cf::RUNTIME;	2232	$self->{last_save} = $cf::RUNTIME;
1542		2233
1543	return unless $self->dirty;	2234	return unless $self->dirty;
1544		2235
…		…
1550	return if $self->{deny_save};	2241	return if $self->{deny_save};
1551		2242
1552	local $self->{last_access} = $self->last_access;#d#	2243	local $self->{last_access} = $self->last_access;#d#
1553		2244
1554	cf::async {	2245	cf::async {
		2246	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2247	$_->contr->save for $self->players;
1556	};	2248	};
		2249
		2250	cf::get_slot 0.02;
1557		2251
1558	if ($uniq) {	2252	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2253	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2254	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2255	} else {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2256	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1563	}	2257	}
1564	}	2258	}
1565		2259
		2260	sub save {
		2261	my ($self) = @_;
		2262
		2263	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2264
		2265	$self->_save;
		2266	}
		2267
1566	sub swap_out {	2268	sub swap_out {
1567	my ($self) = @_;	2269	my ($self) = @_;
1568		2270
1569	# save first because save cedes
1570	$self->save;
1571
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2272
		2273	return if $self->in_memory != cf::MAP_ACTIVE;
		2274	return if $self->{deny_save};
1574	return if $self->players;	2275	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;
1576	return if $self->{deny_save};
1577		2276
		2277	# first deactivate the map and "unlink" it from the core
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
		2280	$self->in_memory (cf::MAP_SWAPPED);
		2281
		2282	# then atomically save
		2283	$self->_save;
		2284
		2285	# then free the map
1578	$self->clear;	2286	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2287	}
1581		2288
1582	sub reset_at {	2289	sub reset_at {
1583	my ($self) = @_;	2290	my ($self) = @_;
1584		2291
1585	# TODO: safety, remove and allow resettable per-player maps	2292	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2293	return 1e99 if $self->{deny_reset};
1588		2294
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2295	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2296	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2297
…		…
1602	my ($self) = @_;	2308	my ($self) = @_;
1603		2309
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2311
1606	return if $self->players;	2312	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2313
1609	warn "resetting map ", $self->path;#d#	2314	warn "resetting map ", $self->path, "\n";
		2315
		2316	$self->in_memory (cf::MAP_SWAPPED);
		2317
		2318	# need to save uniques path
		2319	unless ($self->{deny_save}) {
		2320	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2321
		2322	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2323	if $uniq;
		2324	}
1610		2325
1611	delete $cf::MAP{$self->path};	2326	delete $cf::MAP{$self->path};
1612		2327
1613	$self->in_memory (cf::MAP_SWAPPED);	2328	$self->deactivate;
		2329	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2330	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2331
1618	$self->unlink_save;	2332	$self->unlink_save;
1619	$self->destroy;	2333	$self->destroy;
1620	}	2334	}
1621		2335
1622	my $nuke_counter = "aaaa";	2336	my $nuke_counter = "aaaa";
1623		2337
1624	sub nuke {	2338	sub nuke {
1625	my ($self) = @_;	2339	my ($self) = @_;
1626		2340
		2341	{
		2342	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2343
1627	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1628		2345
1629	$self->unlink_save;	2346	$self->unlink_save;
1630		2347
1631	bless $self, "cf::map";	2348	bless $self, "cf::map::wrap";
1632	delete $self->{deny_reset};	2349	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2350	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2351	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2352	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2353
1637	$cf::MAP{$self->path} = $self;	2354	$cf::MAP{$self->path} = $self;
		2355	}
1638		2356
1639	$self->reset; # polite request, might not happen	2357	$self->reset; # polite request, might not happen
		2358	}
		2359
		2360	=item $maps = cf::map::tmp_maps
		2361
		2362	Returns an arrayref with all map paths of currently instantiated and saved
		2363	maps. May block.
		2364
		2365	=cut
		2366
		2367	sub tmp_maps() {
		2368	[
		2369	map {
		2370	utf8::decode $_;
		2371	/\.map$/
		2372	? normalise $_
		2373	: ()
		2374	} @{ aio_readdir $TMPDIR or [] }
		2375	]
		2376	}
		2377
		2378	=item $maps = cf::map::random_maps
		2379
		2380	Returns an arrayref with all map paths of currently instantiated and saved
		2381	random maps. May block.
		2382
		2383	=cut
		2384
		2385	sub random_maps() {
		2386	[
		2387	map {
		2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise "?random/$_"
		2391	: ()
		2392	} @{ aio_readdir $RANDOMDIR or [] }
		2393	]
1640	}	2394	}
1641		2395
1642	=item cf::map::unique_maps	2396	=item cf::map::unique_maps
1643		2397
1644	Returns an arrayref of paths of all shared maps that have	2398	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2399	instantiated unique items. May block.
1646		2400
1647	=cut	2401	=cut
1648		2402
1649	sub unique_maps() {	2403	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2404	[
1651	or return;	2405	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2406	utf8::decode $_;
1657	next if /\.pst$/;	2407	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2408	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2409	? ()
1660	push @paths, cf::map::normalise $_;	2410	: normalise $_
		2411	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2412	]
1662
1663	\@paths
1664	}	2413	}
1665		2414
1666	package cf;	2415	=item cf::map::static_maps
		2416
		2417	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2418	file in the shared directory excluding F</styles> and F</editor>). May
		2419	block.
		2420
		2421	=cut
		2422
		2423	sub static_maps() {
		2424	my @dirs = "";
		2425	my @maps;
		2426
		2427	while (@dirs) {
		2428	my $dir = shift @dirs;
		2429
		2430	next if $dir eq "/styles" || $dir eq "/editor";
		2431
		2432	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2433	or return;
		2434
		2435	for (@$files) {
		2436	s/\.map$// or next;
		2437	utf8::decode $_;
		2438	push @maps, "$dir/$_";
		2439	}
		2440
		2441	push @dirs, map "$dir/$_", @$dirs;
		2442	}
		2443
		2444	\@maps
		2445	}
1667		2446
1668	=back	2447	=back
1669		2448
1670	=head3 cf::object	2449	=head3 cf::object
1671		2450
…		…
1675		2454
1676	=over 4	2455	=over 4
1677		2456
1678	=item $ob->inv_recursive	2457	=item $ob->inv_recursive
1679		2458
1680	Returns the inventory of the object _and_ their inventories, recursively.	2459	Returns the inventory of the object I<and> their inventories, recursively,
		2460	but I<not> the object itself.
1681		2461
1682	=cut	2462	=cut
1683		2463
1684	sub inv_recursive_;	2464	sub inv_recursive_;
1685	sub inv_recursive_ {	2465	sub inv_recursive_ {
…		…
1688		2468
1689	sub inv_recursive {	2469	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2470	inv_recursive_ inv $_[0]
1691	}	2471	}
1692		2472
		2473	=item $ref = $ob->ref
		2474
		2475	Creates and returns a persistent reference to an object that can be stored as a string.
		2476
		2477	=item $ob = cf::object::deref ($refstring)
		2478
		2479	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2480	even if the object actually exists. May block.
		2481
		2482	=cut
		2483
		2484	sub deref {
		2485	my ($ref) = @_;
		2486
		2487	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2488	my ($uuid, $name) = ($1, $2);
		2489	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2490	or return;
		2491	$pl->ob->uuid eq $uuid
		2492	or return;
		2493
		2494	$pl->ob
		2495	} else {
		2496	warn "$ref: cannot resolve object reference\n";
		2497	undef
		2498	}
		2499	}
		2500
1693	package cf;	2501	package cf;
1694		2502
1695	=back	2503	=back
1696		2504
1697	=head3 cf::object::player	2505	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2511	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2512	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2513	dialogue with the given NPC character.
1706		2514
1707	=cut	2515	=cut
		2516
		2517	our $SAY_CHANNEL = {
		2518	id => "say",
		2519	title => "Map",
		2520	reply => "say ",
		2521	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2522	};
		2523
		2524	our $CHAT_CHANNEL = {
		2525	id => "chat",
		2526	title => "Chat",
		2527	reply => "chat ",
		2528	tooltip => "Player chat and shouts, global to the server.",
		2529	};
1708		2530
1709	# rough implementation of a future "reply" method that works	2531	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2532	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2533	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2534	sub cf::object::player::reply($$$;$) {
…		…
1714		2536
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2537	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2538
1717	if ($self->{record_replies}) {	2539	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2540	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2541
1719	} else {	2542	} else {
		2543	my $pl = $self->contr;
		2544
		2545	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2546	my $dialog = $pl->{npc_dialog};
		2547	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2548
		2549	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2550	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2551	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2552	}
1722	}	2553	}
		2554	}
		2555
		2556	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2557
		2558	=cut
		2559
		2560	sub cf::object::send_msg {
		2561	my $pl = shift->contr
		2562	or return;
		2563	$pl->send_msg (@_);
1723	}	2564	}
1724		2565
1725	=item $player_object->may ("access")	2566	=item $player_object->may ("access")
1726		2567
1727	Returns wether the given player is authorized to access resource "access"	2568	Returns wether the given player is authorized to access resource "access"
…		…
1740		2581
1741	=item $player_object->enter_link	2582	=item $player_object->enter_link
1742		2583
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2584	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2585
1745	The player should be reasonably safe there for short amounts of time. You	2586	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2587	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2588	though, as the palyer cannot control the character while it is on the link
		2589	map.
1747		2590
1748	Will never block.	2591	Will never block.
1749		2592
1750	=item $player_object->leave_link ($map, $x, $y)	2593	=item $player_object->leave_link ($map, $x, $y)
1751		2594
…		…
1774	$self->deactivate_recursive;	2617	$self->deactivate_recursive;
1775		2618
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2619	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2620
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2621	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2622	if $self->map && $self->map->{path} ne "{link}";
1780		2623
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2624	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1782	}	2625	}
1783		2626
1784	sub cf::object::player::leave_link {	2627	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2628	my ($self, $map, $x, $y) = @_;
		2629
		2630	return unless $self->contr->active;
1786		2631
1787	my $link_pos = delete $self->{_link_pos};	2632	my $link_pos = delete $self->{_link_pos};
1788		2633
1789	unless ($map) {	2634	unless ($map) {
1790	# restore original map position	2635	# restore original map position
…		…
1801	($x, $y) = (-1, -1)	2646	($x, $y) = (-1, -1)
1802	unless (defined $x) && (defined $y);	2647	unless (defined $x) && (defined $y);
1803		2648
1804	# use -1 or undef as default coordinates, not 0, 0	2649	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2650	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2651	if $x <= 0 && $y <= 0;
1807		2652
1808	$map->load;	2653	$map->load;
1809	$map->load_diag;	2654	$map->load_neighbours;
1810		2655
1811	return unless $self->contr->active;	2656	return unless $self->contr->active;
		2657
		2658	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2659	$self->enter_map ($map, $x, $y);
		2660
		2661	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2662	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}	2663	}
1815		2664
1816	cf::player->attach (	2665	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2666
1820	# abort map switching before logout	2667	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2668	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2669	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2670	the new (success) or old (failed) map position. In either case, $done will
1824	};	2671	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2672
1830	# try to abort aborted map switching on player login :)	2673	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2674	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2675
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2676	=cut
		2677
		2678	our $GOTOGEN;
1851		2679
1852	sub cf::object::player::goto {	2680	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2681	my ($self, $path, $x, $y, $check, $done) = @_;
		2682
		2683	# do generation counting so two concurrent goto's will be executed in-order
		2684	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2685
1855	$self->enter_link;	2686	$self->enter_link;
1856		2687
1857	(async {	2688	(async {
		2689	$Coro::current->{desc} = "player::goto $path $x $y";
		2690
		2691	# *tag paths override both path and x|y
		2692	if ($path =~ /^\*(.*)$/) {
		2693	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2694	my $ob = $obs[rand @obs];
		2695
		2696	# see if we actually can go there
		2697	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2698	$ob = $obs[rand @obs];
		2699	} else {
		2700	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2701	}
		2702	# else put us there anyways for now #d#
		2703
		2704	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2705	} else {
		2706	($path, $x, $y) = (undef, undef, undef);
		2707	}
		2708	}
		2709
1858	my $map = eval {	2710	my $map = eval {
1859	my $map = cf::map::find $path;	2711	my $map = defined $path ? cf::map::find $path : undef;
		2712
		2713	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2714	$map = $map->customise_for ($self);
		2715	$map = $check->($map) if $check && $map;
		2716	} else {
		2717	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719
1861	$map	2720	$map
		2721	};
		2722
		2723	if ($@) {
		2724	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2725	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2726	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2727
		2728	if ($gen == $self->{_goto_generation}) {
		2729	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2730	$self->leave_link ($map, $x, $y);
		2731	}
		2732
		2733	$done->() if $done;
1866	})->prio (1);	2734	})->prio (1);
1867	}	2735	}
1868		2736
1869	=item $player_object->enter_exit ($exit_object)	2737	=item $player_object->enter_exit ($exit_object)
1870		2738
…		…
1890	}	2758	}
1891		2759
1892	sub prepare_random_map {	2760	sub prepare_random_map {
1893	my ($exit) = @_;	2761	my ($exit) = @_;
1894		2762
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2763	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2764	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2765	# that depends on the exit object
1900		2766
1901	my $rmp = parse_random_map_params $exit->msg;	2767	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2769	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2770	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2771	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2772	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2773	$rmp->{origin_y} = $exit->y;
		2774
		2775	$exit->map->touch;
1908	}	2776	}
1909		2777
1910	$rmp->{random_seed} ||= $exit->random_seed;	2778	$rmp->{random_seed} ||= $exit->random_seed;
1911		2779
1912	my $data = cf::to_json $rmp;	2780	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2781	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2782	my $meta = "$RANDOMDIR/$md5.meta";
1915		2783
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2784	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2785	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2786	undef $fh;
1919	aio_rename "$meta~", $meta;	2787	aio_rename "$meta~", $meta;
1920		2788
		2789	my $slaying = "?random/$md5";
		2790
		2791	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2792	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2793	$exit->msg (undef);
		2794	}
1923	}	2795	}
1924	}	2796	}
1925		2797
1926	sub cf::object::player::enter_exit {	2798	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2799	my ($self, $exit) = @_;
1928		2800
1929	return unless $self->type == cf::PLAYER;	2801	return unless $self->type == cf::PLAYER;
1930		2802
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2803	$self->enter_link;
1941		2804
1942	(async {	2805	(async {
1943	$self->deactivate_recursive; # just to be sure	2806	$Coro::current->{desc} = "enter_exit";
		2807
1944	unless (eval {	2808	unless (eval {
		2809	$self->deactivate_recursive; # just to be sure
		2810
		2811	# random map handling
		2812	{
		2813	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2814
		2815	prepare_random_map $exit
		2816	if $exit->slaying eq "/!";
		2817	}
		2818
		2819	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2820	my $x = $exit->stats->hp;
		2821	my $y = $exit->stats->sp;
		2822
1945	$self->goto ($slaying, $hp, $sp);	2823	$self->goto ($map, $x, $y);
1946		2824
		2825	# if exit is damned, update players death & WoR home-position
		2826	$self->contr->savebed ($map, $x, $y)
		2827	if $exit->flag (cf::FLAG_DAMNED);
		2828
1947	1;	2829	1
1948	}) {	2830	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2831	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2832	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2833	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2834	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2835
1954	warn "ERROR in enter_exit: $@";	2836	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2837	$self->leave_link;
1956	}	2838	}
1957	})->prio (1);	2839	})->prio (1);
…		…
1970		2852
1971	sub cf::client::send_drawinfo {	2853	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2854	my ($self, $text, $flags) = @_;
1973		2855
1974	utf8::encode $text;	2856	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2857	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2858	}
1977		2859
		2860	=item $client->send_big_packet ($pkt)
		2861
		2862	Like C<send_packet>, but tries to compress large packets, and fragments
		2863	them as required.
		2864
		2865	=cut
		2866
		2867	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2868
		2869	sub cf::client::send_big_packet {
		2870	my ($self, $pkt) = @_;
		2871
		2872	# try lzf for large packets
		2873	$pkt = "lzf " . Compress::LZF::compress $pkt
		2874	if 1024 <= length $pkt and $self->{can_lzf};
		2875
		2876	# split very large packets
		2877	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2878	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2879	$pkt = "frag";
		2880	}
		2881
		2882	$self->send_packet ($pkt);
		2883	}
		2884
		2885	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2886
		2887	Send a drawinfo or msg packet to the client, formatting the msg for the
		2888	client if neccessary. C<$type> should be a string identifying the type of
		2889	the message, with C<log> being the default. If C<$color> is negative, suppress
		2890	the message unless the client supports the msg packet.
		2891
		2892	=cut
		2893
		2894	# non-persistent channels (usually the info channel)
		2895	our %CHANNEL = (
		2896	"c/motd" => {
		2897	id => "infobox",
		2898	title => "MOTD",
		2899	reply => undef,
		2900	tooltip => "The message of the day",
		2901	},
		2902	"c/identify" => {
		2903	id => "infobox",
		2904	title => "Identify",
		2905	reply => undef,
		2906	tooltip => "Items recently identified",
		2907	},
		2908	"c/examine" => {
		2909	id => "infobox",
		2910	title => "Examine",
		2911	reply => undef,
		2912	tooltip => "Signs and other items you examined",
		2913	},
		2914	"c/shopinfo" => {
		2915	id => "infobox",
		2916	title => "Shop Info",
		2917	reply => undef,
		2918	tooltip => "What your bargaining skill tells you about the shop",
		2919	},
		2920	"c/book" => {
		2921	id => "infobox",
		2922	title => "Book",
		2923	reply => undef,
		2924	tooltip => "The contents of a note or book",
		2925	},
		2926	"c/lookat" => {
		2927	id => "infobox",
		2928	title => "Look",
		2929	reply => undef,
		2930	tooltip => "What you saw there",
		2931	},
		2932	"c/who" => {
		2933	id => "infobox",
		2934	title => "Players",
		2935	reply => undef,
		2936	tooltip => "Shows players who are currently online",
		2937	},
		2938	"c/body" => {
		2939	id => "infobox",
		2940	title => "Body Parts",
		2941	reply => undef,
		2942	tooltip => "Shows which body parts you posess and are available",
		2943	},
		2944	"c/statistics" => {
		2945	id => "infobox",
		2946	title => "Statistics",
		2947	reply => undef,
		2948	tooltip => "Shows your primary statistics",
		2949	},
		2950	"c/skills" => {
		2951	id => "infobox",
		2952	title => "Skills",
		2953	reply => undef,
		2954	tooltip => "Shows your experience per skill and item power",
		2955	},
		2956	"c/shopitems" => {
		2957	id => "infobox",
		2958	title => "Shop Items",
		2959	reply => undef,
		2960	tooltip => "Shows the items currently for sale in this shop",
		2961	},
		2962	"c/resistances" => {
		2963	id => "infobox",
		2964	title => "Resistances",
		2965	reply => undef,
		2966	tooltip => "Shows your resistances",
		2967	},
		2968	"c/pets" => {
		2969	id => "infobox",
		2970	title => "Pets",
		2971	reply => undef,
		2972	tooltip => "Shows information abotu your pets/a specific pet",
		2973	},
		2974	"c/perceiveself" => {
		2975	id => "infobox",
		2976	title => "Perceive Self",
		2977	reply => undef,
		2978	tooltip => "You gained detailed knowledge about yourself",
		2979	},
		2980	"c/uptime" => {
		2981	id => "infobox",
		2982	title => "Uptime",
		2983	reply => undef,
		2984	tooltip => "How long the server has been running since last restart",
		2985	},
		2986	"c/mapinfo" => {
		2987	id => "infobox",
		2988	title => "Map Info",
		2989	reply => undef,
		2990	tooltip => "Information related to the maps",
		2991	},
		2992	"c/party" => {
		2993	id => "party",
		2994	title => "Party",
		2995	reply => "gsay ",
		2996	tooltip => "Messages and chat related to your party",
		2997	},
		2998	"c/death" => {
		2999	id => "death",
		3000	title => "Death",
		3001	reply => undef,
		3002	tooltip => "Reason for and more info about your most recent death",
		3003	},
		3004	"c/say" => $SAY_CHANNEL,
		3005	"c/chat" => $CHAT_CHANNEL,
		3006	);
		3007
		3008	sub cf::client::send_msg {
		3009	my ($self, $channel, $msg, $color, @extra) = @_;
		3010
		3011	$msg = $self->pl->expand_cfpod ($msg)
		3012	unless $color & cf::NDI_VERBATIM;
		3013
		3014	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3015
		3016	# check predefined channels, for the benefit of C
		3017	if ($CHANNEL{$channel}) {
		3018	$channel = $CHANNEL{$channel};
		3019
		3020	$self->ext_msg (channel_info => $channel);
		3021	$channel = $channel->{id};
		3022
		3023	} elsif (ref $channel) {
		3024	# send meta info to client, if not yet sent
		3025	unless (exists $self->{channel}{$channel->{id}}) {
		3026	$self->{channel}{$channel->{id}} = $channel;
		3027	$self->ext_msg (channel_info => $channel);
		3028	}
		3029
		3030	$channel = $channel->{id};
		3031	}
		3032
		3033	return unless @extra || length $msg;
		3034
		3035	# default colour, mask it out
		3036	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3037	if $color & cf::NDI_DEF;
		3038
		3039	my $pkt = "msg "
		3040	. $self->{json_coder}->encode (
		3041	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3042	);
		3043
		3044	$self->send_big_packet ($pkt);
		3045	}
		3046
		3047	=item $client->ext_msg ($type, @msg)
		3048
		3049	Sends an ext event to the client.
		3050
		3051	=cut
		3052
		3053	sub cf::client::ext_msg($$@) {
		3054	my ($self, $type, @msg) = @_;
		3055
		3056	if ($self->extcmd == 2) {
		3057	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3058	} elsif ($self->extcmd == 1) { # TODO: remove
		3059	push @msg, msgtype => "event_$type";
		3060	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3061	}
		3062	}
		3063
		3064	=item $client->ext_reply ($msgid, @msg)
		3065
		3066	Sends an ext reply to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_reply($$@) {
		3071	my ($self, $id, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3075	} elsif ($self->extcmd == 1) {
		3076	#TODO: version 1, remove
		3077	unshift @msg, msgtype => "reply", msgid => $id;
		3078	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3079	}
		3080	}
1978		3081
1979	=item $success = $client->query ($flags, "text", \&cb)	3082	=item $success = $client->query ($flags, "text", \&cb)
1980		3083
1981	Queues a query to the client, calling the given callback with	3084	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3085	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3086	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		3087
1985	Queries can fail, so check the return code. Or don't, as queries will become	3088	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	3089	become reliable at some point in the future.
1987		3090
1988	=cut	3091	=cut
1989		3092
1990	sub cf::client::query {	3093	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	3094	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	3102	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3103	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		3104
2002	$self->send_packet ($self->{query_queue}[0][0])	3105	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	3106	if @{ $self->{query_queue} } == 1;
		3107
		3108	1
2004	}	3109	}
2005		3110
2006	cf::client->attach (	3111	cf::client->attach (
		3112	on_connect => sub {
		3113	my ($ns) = @_;
		3114
		3115	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3116	},
2007	on_reply => sub {	3117	on_reply => sub {
2008	my ($ns, $msg) = @_;	3118	my ($ns, $msg) = @_;
2009		3119
2010	# this weird shuffling is so that direct followup queries	3120	# this weird shuffling is so that direct followup queries
2011	# get handled first	3121	# get handled first
…		…
2023	} else {	3133	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3134	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3135	}
2026	}	3136	}
2027	},	3137	},
		3138	on_exticmd => sub {
		3139	my ($ns, $buf) = @_;
		3140
		3141	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3142
		3143	if (ref $msg) {
		3144	my ($type, $reply, @payload) =
		3145	"ARRAY" eq ref $msg
		3146	? @$msg
		3147	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3148
		3149	my @reply;
		3150
		3151	if (my $cb = $EXTICMD{$type}) {
		3152	@reply = $cb->($ns, @payload);
		3153	}
		3154
		3155	$ns->ext_reply ($reply, @reply)
		3156	if $reply;
		3157
		3158	} else {
		3159	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3160	}
		3161
		3162	cf::override;
		3163	},
2028	);	3164	);
2029		3165
2030	=item $client->async (\&cb)	3166	=item $client->async (\&cb)
2031		3167
2032	Create a new coroutine, running the specified callback. The coroutine will	3168	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048		3184
2049	$coro	3185	$coro
2050	}	3186	}
2051		3187
2052	cf::client->attach (	3188	cf::client->attach (
2053	on_destroy => sub {	3189	on_client_destroy => sub {
2054	my ($ns) = @_;	3190	my ($ns) = @_;
2055		3191
2056	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3192	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2057	},	3193	},
2058	);	3194	);
…		…
2073	our $safe = new Safe "safe";	3209	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3210	our $safe_hole = new Safe::Hole;
2075		3211
2076	$SIG{FPE} = 'IGNORE';	3212	$SIG{FPE} = 'IGNORE';
2077		3213
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3214	$safe->permit_only (Opcode::opset qw(
		3215	:base_core :base_mem :base_orig :base_math :base_loop
		3216	grepstart grepwhile mapstart mapwhile
		3217	sort time
		3218	));
2079		3219
2080	# here we export the classes and methods available to script code	3220	# here we export the classes and methods available to script code
2081		3221
2082	=pod	3222	=pod
2083		3223
2084	The following fucntions and emthods are available within a safe environment:	3224	The following functions and methods are available within a safe environment:
2085		3225
2086	cf::object contr pay_amount pay_player map	3226	cf::object
		3227	contr pay_amount pay_player map x y force_find force_add destroy
		3228	insert remove name archname title slaying race decrease split
		3229	value
		3230
2087	cf::object::player player	3231	cf::object::player
2088	cf::player peaceful	3232	player
2089	cf::map trigger	3233
		3234	cf::player
		3235	peaceful
		3236
		3237	cf::map
		3238	trigger
2090		3239
2091	=cut	3240	=cut
2092		3241
2093	for (	3242	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3243	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3244	insert remove inv nrof name archname title slaying race
		3245	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3246	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3247	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3248	["cf::map" => qw(trigger)],
2098	) {	3249	) {
2099	no strict 'refs';	3250	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3251	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3252	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2119		3270
2120	my $qcode = $code;	3271	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3272	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3273	$qcode =~ s/\n/\\n/g;
2123		3274
		3275	%vars = (_dummy => 0) unless %vars;
		3276
		3277	my @res;
2124	local $_;	3278	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;
2126		3279
2127	my $eval =	3280	my $eval =
2128	"do {\n"	3281	"do {\n"
2129	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3282	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2130	. "#line 0 \"{$qcode}\"\n"	3283	. "#line 0 \"{$qcode}\"\n"
2131	. $code	3284	. $code
2132	. "\n}"	3285	. "\n}"
2133	;	3286	;
2134		3287
		3288	if ($CFG{safe_eval}) {
2135	sub_generation_inc;	3289	sub_generation_inc;
		3290	local @safe::cf::_safe_eval_args = values %vars;
2136	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3291	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2137	sub_generation_inc;	3292	sub_generation_inc;
		3293	} else {
		3294	local @cf::_safe_eval_args = values %vars;
		3295	@res = wantarray ? eval eval : scalar eval $eval;
		3296	}
2138		3297
2139	if ($@) {	3298	if ($@) {
2140	warn "$@";	3299	warn "$@";
2141	warn "while executing safe code '$code'\n";	3300	warn "while executing safe code '$code'\n";
2142	warn "with arguments " . (join " ", %vars) . "\n";	3301	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2161	=cut	3320	=cut
2162		3321
2163	sub register_script_function {	3322	sub register_script_function {
2164	my ($fun, $cb) = @_;	3323	my ($fun, $cb) = @_;
2165		3324
2166	no strict 'refs';	3325	$fun = "safe::$fun" if $CFG{safe_eval};
2167	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3326	*$fun = $safe_hole->wrap ($cb);
2168	}	3327	}
2169		3328
2170	=back	3329	=back
2171		3330
2172	=cut	3331	=cut
2173
2174	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281		3332
2282	#############################################################################	3333	#############################################################################
2283	# the server's init and main functions	3334	# the server's init and main functions
2284		3335
		3336	sub load_facedata($) {
		3337	my ($path) = @_;
		3338
		3339	# HACK to clear player env face cache, we need some signal framework
		3340	# for this (global event?)
		3341	%ext::player_env::MUSIC_FACE_CACHE = ();
		3342
		3343	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3344
		3345	warn "loading facedata from $path\n";
		3346
		3347	my $facedata;
		3348	0 < aio_load $path, $facedata
		3349	or die "$path: $!";
		3350
		3351	$facedata = Coro::Storable::thaw $facedata;
		3352
		3353	$facedata->{version} == 2
		3354	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3355
		3356	# patch in the exptable
		3357	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3358	$facedata->{resource}{"res/exp_table"} = {
		3359	type => FT_RSRC,
		3360	data => $exp_table,
		3361	hash => (Digest::MD5::md5 $exp_table),
		3362	};
		3363	cf::cede_to_tick;
		3364
		3365	{
		3366	my $faces = $facedata->{faceinfo};
		3367
		3368	while (my ($face, $info) = each %$faces) {
		3369	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3370
		3371	cf::face::set_visibility $idx, $info->{visibility};
		3372	cf::face::set_magicmap $idx, $info->{magicmap};
		3373	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3374	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3375
		3376	cf::cede_to_tick;
		3377	}
		3378
		3379	while (my ($face, $info) = each %$faces) {
		3380	next unless $info->{smooth};
		3381
		3382	my $idx = cf::face::find $face
		3383	or next;
		3384
		3385	if (my $smooth = cf::face::find $info->{smooth}) {
		3386	cf::face::set_smooth $idx, $smooth;
		3387	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3388	} else {
		3389	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3390	}
		3391
		3392	cf::cede_to_tick;
		3393	}
		3394	}
		3395
		3396	{
		3397	my $anims = $facedata->{animinfo};
		3398
		3399	while (my ($anim, $info) = each %$anims) {
		3400	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3401	cf::cede_to_tick;
		3402	}
		3403
		3404	cf::anim::invalidate_all; # d'oh
		3405	}
		3406
		3407	{
		3408	my $res = $facedata->{resource};
		3409
		3410	while (my ($name, $info) = each %$res) {
		3411	if (defined $info->{type}) {
		3412	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3413
		3414	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3415	cf::face::set_type $idx, $info->{type};
		3416	} else {
		3417	$RESOURCE{$name} = $info;
		3418	}
		3419
		3420	cf::cede_to_tick;
		3421	}
		3422	}
		3423
		3424	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3425
		3426	1
		3427	}
		3428
		3429	cf::global->attach (on_resource_update => sub {
		3430	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3431	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3432
		3433	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3434	my $sound = $soundconf->{compat}[$_]
		3435	or next;
		3436
		3437	my $face = cf::face::find "sound/$sound->[1]";
		3438	cf::sound::set $sound->[0] => $face;
		3439	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3440	}
		3441
		3442	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3443	my $face = cf::face::find "sound/$v";
		3444	cf::sound::set $k => $face;
		3445	}
		3446	}
		3447	});
		3448
		3449	register_exticmd fx_want => sub {
		3450	my ($ns, $want) = @_;
		3451
		3452	while (my ($k, $v) = each %$want) {
		3453	$ns->fx_want ($k, $v);
		3454	}
		3455	};
		3456
2285	sub load_resources {	3457	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3458	my $guard = lock_acquire "load_resource_file";
		3459
		3460	my $status = load_resource_file_ $_[0];
		3461	get_slot 0.1, 100;
		3462	cf::arch::commit_load;
		3463
		3464	$status
		3465	}
		3466
		3467	sub reload_regions {
		3468	# HACK to clear player env face cache, we need some signal framework
		3469	# for this (global event?)
		3470	%ext::player_env::MUSIC_FACE_CACHE = ();
		3471
		3472	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3473	or die "unable to load regions file\n";
2288	}
2289		3474
2290	sub cfg_load {	3475	for (cf::region::list) {
		3476	$_->{match} = qr/$_->{match}/
		3477	if exists $_->{match};
		3478	}
		3479	}
		3480
		3481	sub reload_facedata {
		3482	load_facedata "$DATADIR/facedata"
		3483	or die "unable to load facedata\n";
		3484	}
		3485
		3486	sub reload_archetypes {
		3487	load_resource_file "$DATADIR/archetypes"
		3488	or die "unable to load archetypes\n";
		3489	}
		3490
		3491	sub reload_treasures {
		3492	load_resource_file "$DATADIR/treasures"
		3493	or die "unable to load treasurelists\n";
		3494	}
		3495
		3496	sub reload_resources {
		3497	warn "reloading resource files...\n";
		3498
		3499	reload_facedata;
		3500	reload_archetypes;
		3501	reload_regions;
		3502	reload_treasures;
		3503
		3504	warn "finished reloading resource files\n";
		3505	}
		3506
		3507	sub reload_config {
		3508	warn "reloading config file...\n";
		3509
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3510	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3511	or return;
2293		3512
2294	local $/;	3513	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3514	*CFG = YAML::XS::Load scalar <$fh>;
2296		3515
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3516	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3517
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3518	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3519	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3523	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	3524	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	3525	};
2307	warn $@ if $@;	3526	warn $@ if $@;
2308	}	3527	}
2309	}
2310		3528
2311	sub init {	3529	warn "finished reloading resource files\n";
2312	load_resources;	3530	}
		3531
		3532	sub pidfile() {
		3533	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3534	or die "$PIDFILE: $!";
		3535	flock $fh, &Fcntl::LOCK_EX
		3536	or die "$PIDFILE: flock: $!";
		3537	$fh
		3538	}
		3539
		3540	# make sure only one server instance is running at any one time
		3541	sub atomic {
		3542	my $fh = pidfile;
		3543
		3544	my $pid = <$fh>;
		3545	kill 9, $pid if $pid > 0;
		3546
		3547	seek $fh, 0, 0;
		3548	print $fh $$;
		3549	}
		3550
		3551	sub main_loop {
		3552	warn "EV::loop starting\n";
		3553	if (1) {
		3554	EV::loop;
		3555	}
		3556	warn "EV::loop returned\n";
		3557	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3558	}
2314		3559
2315	sub main {	3560	sub main {
		3561	cf::init_globals; # initialise logging
		3562
		3563	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3564	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3565	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3566	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3567
		3568	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3569
2316	# we must not ever block the main coroutine	3570	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3571	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3573	(async {
2320	Event::one_event;	3574	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3575	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3576	})->prio (Coro::PRIO_MAX);
2322	};	3577	};
2323		3578
2324	cfg_load;	3579	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3580
		3581	cf::sync_job {
		3582	cf::init_experience;
		3583	cf::init_anim;
		3584	cf::init_attackmess;
		3585	cf::init_dynamic;
		3586
		3587	cf::load_settings;
		3588	cf::load_materials;
		3589
		3590	reload_resources;
		3591	reload_config;
		3592	db_init;
		3593
		3594	cf::init_uuid;
		3595	cf::init_signals;
		3596	cf::init_skills;
		3597
		3598	cf::init_beforeplay;
		3599
		3600	atomic;
		3601
2326	load_extensions;	3602	load_extensions;
2327		3603
2328	$TICK_WATCHER->start;	3604	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3605
		3606	# no (long-running) fork's whatsoever before this point(!)
		3607	use POSIX ();
		3608	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3609
		3610	(pop @POST_INIT)->(0) while @POST_INIT;
		3611	};
		3612
		3613	cf::object::thawer::errors_are_fatal 0;
		3614	warn "parse errors in files are no longer fatal from this point on.\n";
		3615
		3616	main_loop;
2330	}	3617	}
2331		3618
2332	#############################################################################	3619	#############################################################################
2333	# initialisation and cleanup	3620	# initialisation and cleanup
2334		3621
2335	# install some emergency cleanup handlers	3622	# install some emergency cleanup handlers
2336	BEGIN {	3623	BEGIN {
		3624	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3625	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3626	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3627	cf::cleanup "SIG$signal";
2345	},
2346	);	3628	};
		3629	}
		3630	}
		3631
		3632	sub write_runtime_sync {
		3633	my $t0 = AE::time;
		3634
		3635	# first touch the runtime file to show we are still running:
		3636	# the fsync below can take a very very long time.
		3637
		3638	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3639
		3640	my $guard = cf::lock_acquire "write_runtime";
		3641
		3642	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3643	or return;
		3644
		3645	my $value = $cf::RUNTIME + 90 + 10;
		3646	# 10 is the runtime save interval, for a monotonic clock
		3647	# 60 allows for the watchdog to kill the server.
		3648
		3649	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3650	and return;
		3651
		3652	# always fsync - this file is important
		3653	aio_fsync $fh
		3654	and return;
		3655
		3656	# touch it again to show we are up-to-date
		3657	aio_utime $fh, undef, undef;
		3658
		3659	close $fh
		3660	or return;
		3661
		3662	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3663	and return;
		3664
		3665	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3666
2347	}	3667	1
		3668	}
		3669
		3670	our $uuid_lock;
		3671	our $uuid_skip;
		3672
		3673	sub write_uuid_sync($) {
		3674	$uuid_skip ||= $_[0];
		3675
		3676	return if $uuid_lock;
		3677	local $uuid_lock = 1;
		3678
		3679	my $uuid = "$LOCALDIR/uuid";
		3680
		3681	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3682	or return;
		3683
		3684	my $value = uuid_seq uuid_cur;
		3685
		3686	unless ($value) {
		3687	warn "cowardly refusing to write zero uuid value!\n";
		3688	return;
		3689	}
		3690
		3691	my $value = uuid_str $value + $uuid_skip;
		3692	$uuid_skip = 0;
		3693
		3694	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3695	and return;
		3696
		3697	# always fsync - this file is important
		3698	aio_fsync $fh
		3699	and return;
		3700
		3701	close $fh
		3702	or return;
		3703
		3704	aio_rename "$uuid~", $uuid
		3705	and return;
		3706
		3707	warn "uuid file written ($value).\n";
		3708
		3709	1
		3710
		3711	}
		3712
		3713	sub write_uuid($$) {
		3714	my ($skip, $sync) = @_;
		3715
		3716	$sync ? write_uuid_sync $skip
		3717	: async { write_uuid_sync $skip };
2348	}	3718	}
2349		3719
2350	sub emergency_save() {	3720	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3721	my $freeze_guard = cf::freeze_mainloop;
2352		3722
2353	warn "enter emergency perl save\n";	3723	warn "emergency_perl_save: enter\n";
2354		3724
2355	cf::sync_job {	3725	cf::sync_job {
		3726	# this is a trade-off: we want to be very quick here, so
		3727	# save all maps without fsync, and later call a global sync
		3728	# (which in turn might be very very slow)
		3729	local $USE_FSYNC = 0;
		3730
2356	# use a peculiar iteration method to avoid tripping on perl	3731	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3732	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3733	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3734	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3735	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3736	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3737	$pl->valid or next;
		3738	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3739	$pl->save;
2364	}	3740	}
2365	warn "end emergency player save\n";	3741	warn "emergency_perl_save: end player save\n";
2366		3742
2367	warn "begin emergency map save\n";	3743	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3744	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3745	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3746	$map->valid or next;
2371	$map->save;	3747	$map->save;
2372	}	3748	}
2373	warn "end emergency map save\n";	3749	warn "emergency_perl_save: end map save\n";
		3750
		3751	warn "emergency_perl_save: begin database checkpoint\n";
		3752	BDB::db_env_txn_checkpoint $DB_ENV;
		3753	warn "emergency_perl_save: end database checkpoint\n";
		3754
		3755	warn "emergency_perl_save: begin write uuid\n";
		3756	write_uuid_sync 1;
		3757	warn "emergency_perl_save: end write uuid\n";
2374	};	3758	};
2375		3759
		3760	warn "emergency_perl_save: starting sync()\n";
		3761	IO::AIO::aio_sync sub {
		3762	warn "emergency_perl_save: finished sync()\n";
		3763	};
		3764
2376	warn "leave emergency perl save\n";	3765	warn "emergency_perl_save: leave\n";
2377	}	3766	}
2378		3767
		3768	sub post_cleanup {
		3769	my ($make_core) = @_;
		3770
		3771	warn Carp::longmess "post_cleanup backtrace"
		3772	if $make_core;
		3773
		3774	my $fh = pidfile;
		3775	unlink $PIDFILE if <$fh> == $$;
		3776	}
		3777
		3778	# a safer delete_package, copied from Symbol
		3779	sub clear_package($) {
		3780	my $pkg = shift;
		3781
		3782	# expand to full symbol table name if needed
		3783	unless ($pkg =~ /^main::.*::$/) {
		3784	$pkg = "main$pkg" if $pkg =~ /^::/;
		3785	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3786	$pkg .= '::' unless $pkg =~ /::$/;
		3787	}
		3788
		3789	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3790	my $stem_symtab = *{$stem}{HASH};
		3791
		3792	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3793	or return;
		3794
		3795	# clear all symbols
		3796	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3797	for my $name (keys %$leaf_symtab) {
		3798	_gv_clear *{"$pkg$name"};
		3799	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3800	}
		3801	}
		3802
2379	sub reload() {	3803	sub do_reload_perl() {
2380	# can/must only be called in main	3804	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3805	if (in_main) {
2382	warn "can only reload from main coroutine";	3806	warn "can only reload from main coroutine";
2383	return;	3807	return;
2384	}	3808	}
2385		3809
		3810	return if $RELOAD++;
		3811
		3812	my $t1 = AE::time;
		3813
		3814	while ($RELOAD) {
2386	warn "reloading...";	3815	warn "reloading...";
2387		3816
2388	warn "cancelling server ticker";	3817	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3818
		3819	cf::sync_job {
		3820	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3821	cf::emergency_save;
		3822	cf::write_runtime_sync; # external watchdog should not bark
2392		3823
2393	eval {	3824	warn "syncing database to disk";
		3825	BDB::db_env_txn_checkpoint $DB_ENV;
		3826
2394	# if anything goes wrong in here, we should simply crash as we already saved	3827	# if anything goes wrong in here, we should simply crash as we already saved
2395		3828
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3829	warn "flushing outstanding aio requests";
2405	for (;;) {	3830	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3831	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3832	}
2432		3833
2433	warn "... nuking $pkg";	3834	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3835	$_->cancel for values %EXT_CORO;
2435	}	3836	%EXT_CORO = ();
2436		3837
2437	warn "unloading all perl modules loaded from $LIBDIR";	3838	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3839	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3840
		3841	warn "removing ext/exti commands";
		3842	%EXTCMD = ();
		3843	%EXTICMD = ();
		3844
		3845	warn "unloading/nuking all extensions";
		3846	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3847	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3848
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3849	if (my $cb = $pkg->can ("unload")) {
		3850	eval {
2448	$cb->();	3851	$cb->($pkg);
		3852	1
		3853	} or warn "$pkg unloaded, but with errors: $@";
		3854	}
		3855
		3856	warn "... clearing $pkg";
		3857	clear_package $pkg;
2449	}	3858	}
2450		3859
2451	Symbol::delete_package $k;	3860	warn "unloading all perl modules loaded from $LIBDIR";
		3861	while (my ($k, $v) = each %INC) {
		3862	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3863
		3864	warn "... unloading $k";
		3865	delete $INC{$k};
		3866
		3867	$k =~ s/\.pm$//;
		3868	$k =~ s/\//::/g;
		3869
		3870	if (my $cb = $k->can ("unload_module")) {
		3871	$cb->();
		3872	}
		3873
		3874	clear_package $k;
2452	}	3875	}
2453		3876
2454	warn "getting rid of safe::, as good as possible";	3877	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3878	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3879	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3880
2458	warn "unloading cf.pm \"a bit\"";	3881	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3882	delete $INC{"cf.pm"};
		3883	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3884
2461	# don't, removes xs symbols, too,	3885	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3886	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3887	#clear_package __PACKAGE__;
2464		3888
2465	warn "unload completed, starting to reload now";	3889	warn "unload completed, starting to reload now";
2466		3890
2467	warn "reloading cf.pm";	3891	warn "reloading cf.pm";
2468	require cf;	3892	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3893	cf::_connect_to_perl_1;
2470		3894
2471	warn "loading config and database again";	3895	warn "loading config and database again";
2472	cf::cfg_load;	3896	cf::reload_config;
2473	cf::db_load;
2474		3897
2475	warn "loading extensions";	3898	warn "loading extensions";
2476	cf::load_extensions;	3899	cf::load_extensions;
2477		3900
		3901	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3902	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3903	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3904	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3905	reattach $_ for values %MAP;
		3906	warn "reattaching attachments to players";
		3907	reattach $_ for values %PLAYER;
		3908	}
2482		3909
2483	warn "loading reloadable resources";	3910	warn "running post_init jobs";
2484	load_resources;	3911	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3912
2486	warn "restarting server ticker";	3913	warn "leaving sync_job";
2487		3914
2488	$TICK_WATCHER->start;	3915	1
		3916	} or do {
		3917	warn $@;
		3918	cf::cleanup "error while reloading, exiting.";
		3919	};
		3920
		3921	warn "reloaded";
		3922	--$RELOAD;
		3923	}
		3924
		3925	$t1 = AE::time - $t1;
		3926	warn "reload completed in ${t1}s\n";
		3927	};
		3928
		3929	our $RELOAD_WATCHER; # used only during reload
		3930
		3931	sub reload_perl() {
		3932	# doing reload synchronously and two reloads happen back-to-back,
		3933	# coro crashes during coro_state_free->destroy here.
		3934
		3935	$RELOAD_WATCHER ||= cf::async {
		3936	Coro::AIO::aio_wait cache_extensions;
		3937
		3938	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3939	do_reload_perl;
		3940	undef $RELOAD_WATCHER;
		3941	};
2489	};	3942	};
2490		3943	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3944
2502	register_command "reload" => sub {	3945	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3946	my ($who, $arg) = @_;
2504		3947
2505	if ($who->flag (FLAG_WIZ)) {	3948	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3949	$who->message ("reloading server.");
2507		3950	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3951	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3952	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3953	};
2520	}	3954	}
2521	};	3955	};
2522		3956
2523	unshift @INC, $LIBDIR;	3957	unshift @INC, $LIBDIR;
2524		3958
2525	my $bug_warning = 0;	3959	my $bug_warning = 0;
2526		3960
2527	$TICK_WATCHER = Event->timer (	3961	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3962	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3963
2530	prio => 0,	3964	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3965	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3966
2533	cb => sub {	3967	my $signal = new Coro::Signal;
		3968	push @WAIT_FOR_TICK, $signal;
		3969	$signal->wait;
		3970	}
		3971
		3972	sub wait_for_tick_begin {
		3973	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3974
		3975	my $signal = new Coro::Signal;
		3976	push @WAIT_FOR_TICK_BEGIN, $signal;
		3977	$signal->wait;
		3978	}
		3979
		3980	sub tick {
2534	if ($Coro::current != $Coro::main) {	3981	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3982	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3983	unless ++$bug_warning > 10;
2537	return;	3984	return;
2538	}	3985	}
2539		3986
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3987	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3988
2546	$WAIT_FOR_TICK->broadcast;	3989	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2548		3990
2549	Event::sweep;	3991	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2550	Coro::cede_notself;	3992	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3993	Coro::async_pool {
		3994	$Coro::current->{desc} = "runtime saver";
		3995	write_runtime_sync
		3996	or warn "ERROR: unable to write runtime file: $!";
		3997	};
		3998	}
		3999
		4000	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4001	$sig->send;
		4002	}
		4003	while (my $sig = shift @WAIT_FOR_TICK) {
		4004	$sig->send;
		4005	}
		4006
		4007	$LOAD = ($NOW - $TICK_START) / $TICK;
		4008	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4009
		4010	if (0) {
		4011	if ($NEXT_TICK) {
		4012	my $jitter = $TICK_START - $NEXT_TICK;
		4013	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4014	warn "jitter $JITTER\n";#d#
2551		4015	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	4016	}
2561	);	4017	}
2562		4018
2563	{	4019	{
2564	BDB::max_poll_time $TICK * 0.1;	4020	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	4021
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	4022	BDB::min_parallel 16;
2574		4023	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	4024	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		4025
2590	unless ($DB_ENV) {	4026	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	4027	$DB_ENV = BDB::db_env_create;
		4028	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4029	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4030	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4031	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4032	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		4033
2593	cf::sync_job {	4034	cf::sync_job {
		4035	eval {
2594	BDB::db_env_open	4036	BDB::db_env_open
2595	$DB_ENV,	4037	$DB_ENV,
2596	$BDB_ENV_DIR,	4038	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	4041	0666;
2600		4042
2601	cf::cleanup "$!" if $!;	4043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		4044	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	4045
		4046	cf::cleanup "db_env_open(db): $@" if $@;
2604	};	4047	};
2605	}	4048	}
		4049
		4050	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4051	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4052	};
		4053	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4054	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4055	};
		4056	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4057	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4058	};
2606	}	4059	}
2607		4060
2608	{	4061	{
		4062	# configure IO::AIO
		4063
2609	IO::AIO::min_parallel 8;	4064	IO::AIO::min_parallel 8;
2610
2611	undef $Coro::AIO::WATCHER;
2612	IO::AIO::max_poll_time $TICK * 0.1;	4065	IO::AIO::max_poll_time $TICK * 0.1;
2613	$AIO_POLL_WATCHER = Event->io (	4066	undef $AnyEvent::AIO::WATCHER;
2614	reentrant => 0,
2615	fd => IO::AIO::poll_fileno,
2616	poll => 'r',
2617	prio => 6,
2618	data => WF_AUTOCANCEL,
2619	cb => \&IO::AIO::poll_cb,
2620	);
2621	}	4067	}
2622		4068
2623	$WRITE_RUNTIME_WATCHER = Event->timer (	4069	my $_log_backtrace;
2624	reentrant => 0,	4070
2625	data => WF_AUTOCANCEL,	4071	sub _log_backtrace {
2626	after => 1,	4072	my ($msg, @addr) = @_;
2627	interval => 10,	4073
2628	prio => 6, # keep it lowest so it acts like a watchdog	4074	$msg =~ s/\n//;
2629	cb => Coro::unblock_sub {	4075
2630	write_runtime	4076	# limit the # of concurrent backtraces
2631	or warn "ERROR: unable to write runtime file: $!";	4077	if ($_log_backtrace < 2) {
		4078	++$_log_backtrace;
		4079	my $perl_bt = Carp::longmess $msg;
		4080	async {
		4081	$Coro::current->{desc} = "abt $msg";
		4082
		4083	my @bt = fork_call {
		4084	@addr = map { sprintf "%x", $_ } @addr;
		4085	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4086	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4087	or die "addr2line: $!";
		4088
		4089	my @funcs;
		4090	my @res = <$fh>;
		4091	chomp for @res;
		4092	while (@res) {
		4093	my ($func, $line) = splice @res, 0, 2, ();
		4094	push @funcs, "[$func] $line";
		4095	}
		4096
		4097	@funcs
		4098	};
		4099
		4100	LOG llevInfo, "[ABT] $perl_bt\n";
		4101	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4102	LOG llevInfo, "[ABT] $_\n" for @bt;
		4103	--$_log_backtrace;
		4104	};
		4105	} else {
		4106	LOG llevInfo, "[ABT] $msg\n";
		4107	LOG llevInfo, "[ABT] [suppressed]\n";
2632	},	4108	}
2633	);	4109	}
		4110
		4111	# load additional modules
		4112	require "cf/$_.pm" for @EXTRA_MODULES;
		4113	cf::_connect_to_perl_2;
2634		4114
2635	END { cf::emergency_save }	4115	END { cf::emergency_save }
2636		4116
2637	1	4117	1
2638		4118

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