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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.529 by root, Wed Apr 28 11:28:22 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	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 = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	121	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
55		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	126	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
58		130
59	our %CFG;	131	our %CFG;
60		132
61	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
63		136
64	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	139	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		140
73	# used to convert map paths into valid unix filenames by replacing / by ∕	141	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
		153
76	binmode STDOUT;	154	binmode STDOUT;
77	binmode STDERR;	155	binmode STDERR;
78		156
79	# read virtual server time, if available	157	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
84	}	162	}
85		163
86	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	165
88	mkdir cf::localdir . "/" . cf::tmpdir;	166	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		168
93	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
94		170
95	sub cf::map::normalise;	171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
96		187
97	#############################################################################	188	#############################################################################
98		189
99	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
100		191
…		…
107	=item $cf::RUNTIME	198	=item $cf::RUNTIME
108		199
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	201	every server tick.
111		202
112	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		206
114	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
116		211
117	=item $cf::NOW	212	=item $cf::NOW
118		213
119	The time of the last (current) server tick.	214	The time of the last (current) server tick.
120		215
121	=item $cf::TICK	216	=item $cf::TICK
122		217
123	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
124		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
125	=item %cf::CFG	230	=item %cf::CFG
126		231
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	233	from wherever your confdir points to.
129		234
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		236
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	238	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
136		252
137	=back	253	=back
138		254
139	=cut	255	=cut
140		256
141	BEGIN {	257	$Coro::State::WARNHOOK = sub {
142	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	258	my $msg = join "", @_;
144	utf8::encode $msg;
145		259
146	$msg .= "\n"	260	$msg .= "\n"
147	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
148		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
149	LOG llevError, $msg;	265	LOG llevError, $msg;
150	};	266	};
151	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
152		281
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		289
160	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	291	# within the Safe compartment.
162	for my $pkg (qw(	292	for my $pkg (qw(
163	cf::global cf::attachable	293	cf::global cf::attachable
164	cf::object cf::object::player	294	cf::object cf::object::player
165	cf::client cf::player	295	cf::client cf::player
166	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
167	cf::map cf::party cf::region	298	cf::party cf::region
168	)) {	299	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	301	}
172		302
173	$Event::DIED = sub {	303	$EV::DIED = sub {
174	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
175	};	305	};
		306
		307	#############################################################################
176		308
177	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
178		310
179	=over 4	311	=over 4
180		312
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	332	$d
201	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
202	}	334	}
203		335
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
207		337
208	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
209		339
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
218		341
219	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
220		343
221	=cut	344	=cut
222		345
223	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
225	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
226	}	363	}
227		364
228	=item cf::lock_wait $string	365	=item cf::lock_wait $string
229		366
230	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
231		368
232	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
233		370
234	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
237	returned.	374	returned.
238		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
239	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
241		381
242	=cut	382	=item $locked = cf::lock_active $string
243		383
244	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
245		389
246	sub lock_wait($) {	390	sub lock_wait($) {
247	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	392	}
255		393
256	sub lock_acquire($) {	394	sub lock_acquire($) {
257	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
258		397
259	# wait, to be sure we are not locked	398	sub lock_active($) {
260	lock_wait $key;	399	$LOCKS->count ($_[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	}	400	}
269		401
270	sub freeze_mainloop {	402	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
272		404
273	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	406	}
275	$WRITE_RUNTIME_WATCHER->start;	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
276	};	472	}
277	$WRITE_RUNTIME_WATCHER->stop;	473	};
278	$TICK_WATCHER->stop;	474
279	$guard	475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
280	}	488	}
281		489
282	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
283		491
284	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		497
290	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
291		499
292	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
293		501
294	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
297		506
298	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
301	fast or be very important.	510	fast or be very important.
…		…
304		513
305	sub sync_job(&) {	514	sub sync_job(&) {
306	my ($job) = @_;	515	my ($job) = @_;
307		516
308	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
309	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
311		522
312	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	524
314	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
315		526
316	my $busy = 1;	527	my $busy = 1;
317	my @res;	528	my @res;
318		529
319	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	532	@res = eval { $job->() };
321	warn $@ if $@;	533	warn $@ if $@;
322	undef $busy;	534	undef $busy;
323	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
324		536
325	while ($busy) {	537	while ($busy) {
326	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
327	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
328		548
329	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
330	} else {	550	} else {
331	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
332		552
…		…
352	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
353		573
354	$coro	574	$coro
355	}	575	}
356		576
357	sub write_runtime {	577	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		578
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
361	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
362		583
363	my $value = $cf::RUNTIME + 90 + 10;	584	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		585
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	sub fork_call(&@) {
368	and return;	587	my ($cb, @args) = @_;
369		588
370	# always fsync - this file is important	589	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	590	# otherwise perl prematurely frees the stuff :/
372	and return;	591	# TODO: investigate and fix (likely this will be rather laborious)
373		592
374	close $fh	593	my @res = Coro::Util::fork_eval {
375	or return;	594	reset_signals;
		595	&$cb
		596	}, @args;
376		597
377	aio_rename "$runtime~", $runtime	598	wantarray ? @res : $res[-1]
378	and return;	599	}
379		600
		601	sub objinfo {
380	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	775	}
382		776
383	=back	777	=back
384		778
385	=cut	779	=cut
386		780
387	#############################################################################	781	#############################################################################
388		782
389	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
390		784
391	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
394		788
395	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	791	Deliantra).
398		792
399	=over 4	793	=over 4
400		794
401	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
402		796
…		…
446	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
447		841
448	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
450		844
451	Some classes such as crossfire maps and objects can specify attachments	845	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.	846	that are attached at load/instantiate time, thus the need for a name.
453		847
454	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
455		849
456	=over 4	850	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
566		960
567	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		965
572	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	967	my $pkg = shift @arg;
574		968
575	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
605	}	999	}
606		1000
607	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
608	} else {	1002	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	1004	}
611		1005
612	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
613	}	1007	}
614		1008
…		…
616	if (ref $_[0]) {	1010	if (ref $_[0]) {
617	_object_attach @_;	1011	_object_attach @_;
618	} else {	1012	} else {
619	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
620	}	1014	}
		1015	_recalc_want;
621	};	1016	};
622		1017
623	# all those should be optimised	1018	# all those should be optimised
624	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1024	reattach ($obj);
630	} else {	1025	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
632	}	1027	}
		1028	_recalc_want;
633	};	1029	};
634		1030
635	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
637		1033
…		…
652	";	1048	";
653	die if $@;	1049	die if $@;
654	}	1050	}
655		1051
656	our $override;	1052	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1054
659	sub override {	1055	sub override {
660	$override = 1;	1056	$override = 1;
661	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
662	}	1058	}
663		1059
664	sub do_invoke {	1060	sub do_invoke {
665	my $event = shift;	1061	my $event = shift;
666	my $callbacks = shift;	1062	my $callbacks = shift;
667		1063
668	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
669		1065
670	local $override;	1066	local $override;
671		1067
672	for (@$callbacks) {	1068	for (@$callbacks) {
673	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
682	}	1078	}
683		1079
684	0	1080	0
685	}	1081	}
686		1082
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1084
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1086
691	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
692		1088
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1092
697	=back	1093	=back
698		1094
699	=cut	1095	=cut
700		1096
701	#############################################################################	1097	#############################################################################
702	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
703		1141
704	sub reattach {	1142	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1144	my ($obj) = @_;
707		1145
		1146	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1148
710	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
711		1150
712	@$registry = ();	1151	@$registry = ();
713		1152
…		…
728	cf::attachable->attach (	1167	cf::attachable->attach (
729	prio => -1000000,	1168	prio => -1000000,
730	on_instantiate => sub {	1169	on_instantiate => sub {
731	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
732		1171
733	$data = from_json $data;	1172	$data = decode_json $data;
734		1173
735	for (@$data) {	1174	for (@$data) {
736	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
737		1176
738	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1193	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
756		1195
757	sync_job {	1196	sync_job {
758	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
761		1202
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1208	aio_fsync $fh;
		1209	}
766	close $fh;	1210	aio_close $fh;
767		1211
768	if (@$objs) {	1212	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1219	aio_fsync $fh;
		1220	}
774	close $fh;	1221	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
776	}	1223	}
777	} else {	1224	} else {
778	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
779	}	1226	}
780		1227
781	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1232	} else {
783	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
784	}	1234	}
785	} else {	1235	} else {
786	aio_unlink $filename;	1236	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
788	}	1238	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1239	};
796	}	1240	}
797		1241
798	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
800		1244
…		…
805		1249
806	sub object_thawer_load {	1250	sub object_thawer_load {
807	my ($filename) = @_;	1251	my ($filename) = @_;
808		1252
809	my ($data, $av);	1253	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1254
814	(aio_load $filename, $data) >= 0	1255	(aio_load $filename, $data) >= 0
815	or return;	1256	or return;
816		1257
817	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
819	or return;	1260	or return;
		1261
820	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
821	}	1264	}
822		1265
		1266	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
825	return ($data, $av);	1271	($data, $av)
826	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
827		1279
828	#############################################################################	1280	#############################################################################
829	# command handling &c	1281	# command handling &c
830		1282
831	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1297	}
846		1298
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1300
849	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
850		1306
851	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
852	called.	1308	called.
853		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
854	=cut	1321	=cut
855		1322
856	sub register_extcmd {	1323	sub register_extcmd {
857	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
858		1325
859	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
860	}	1327	}
861		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
862	cf::player->attach (	1337	cf::player->attach (
863	on_command => sub {	1338	on_unknown_command => sub {
864	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
865		1340
866	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
867	or return;	1342	or return;
868		1343
…		…
873	cf::override;	1348	cf::override;
874	},	1349	},
875	on_extcmd => sub {	1350	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
877		1352
878	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1354
880	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
886	} else {	1370	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1372	}
889		1373
890	cf::override;	1374	cf::override;
891	},	1375	},
892	);	1376	);
893		1377
		1378	# "readahead" all extensions
894	sub load_extension {	1379	sub cache_extensions {
895	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
896		1381
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1384	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	}	1385	}
922	die $@;
923	}	1386	};
924		1387
925	push @EXTS, $pkg;	1388	$grp
926	}	1389	}
927		1390
928	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
929	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1396	next unless -r $path;
931	eval {	1397
932	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
933	1	1461	}
934	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
935	}	1472	};
936	}	1473	}
937		1474
938	#############################################################################	1475	#############################################################################
939		1476
		1477	=back
		1478
940	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
941		1480
942	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
943		1482
944	=cut	1483	=cut
945		1484
946	package cf::player;	1485	package cf::player;
947		1486
…		…
949		1488
950	=head3 cf::player	1489	=head3 cf::player
951		1490
952	=over 4	1491	=over 4
953		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
954	=item cf::player::find $login	1507	=item cf::player::find $login
955		1508
956	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
957		1510
958	=cut	1511	=cut
959		1512
960	sub playerdir($) {	1513	sub playerdir($) {
961	cf::localdir	1514	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1516	}
967		1517
968	sub path($) {	1518	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1520
971	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
972	}	1522	}
973		1523
974	sub find_active($) {	1524	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
979		1529
980	sub exists($) {	1530	sub exists($) {
981	my ($login) = @_;	1531	my ($login) = @_;
982		1532
983	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
985	}	1535	}
986		1536
987	sub find($) {	1537	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1539	my $login = $_[0];
990		1540
991	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
992		1542
993	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
995	or return;	1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
997	}	1560	}
998	}	1561	}
999	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
1000		1576
1001	sub save($) {	1577	sub save($) {
1002	my ($pl) = @_;	1578	my ($pl) = @_;
1003		1579
1004	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1009	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1010		1586
1011	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1013		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
1014	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1015	Coro::cede;	1596	cf::cede_to_tick;
1016	}	1597	}
1017		1598
1018	sub new($) {	1599	sub new($) {
1019	my ($login) = @_;	1600	my ($login) = @_;
1020		1601
…		…
1026	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1027		1608
1028	$self	1609	$self
1029	}	1610	}
1030		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
1031	=item $pl->quit_character	1622	=item $pl->quit_character
1032		1623
1033	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1035		1626
1036	=cut	1627	=cut
1037		1628
1038	sub quit_character {	1629	sub quit_character {
1039	my ($pl) = @_;	1630	my ($pl) = @_;
1040		1631
		1632	my $name = $pl->ob->name;
		1633
1041	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1636
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1048		1642
1049	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1645	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1054	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
1055	}	1669	}
1056		1670
1057	=item cf::player::list_logins	1671	=item cf::player::list_logins
1058		1672
1059	Returns am arrayref of all valid playernames in the system, can take a	1673	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1674	while and may block, so not sync_job-capable, ever.
1061		1675
1062	=cut	1676	=cut
1063		1677
1064	sub list_logins {	1678	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1679	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1680	or return [];
1067		1681
1068	my @logins;	1682	my @logins;
1069		1683
1070	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1074		1694
1075	utf8::decode $login;	1695	utf8::decode $login;
1076	push @logins, $login;	1696	push @logins, $login;
1077	}	1697	}
1078		1698
1079	\@logins	1699	\@logins
1080	}	1700	}
1081		1701
1082	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1083		1705
1084	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1085	player. May block.	1707	player. May block.
1086		1708
1087	=cut	1709	=cut
…		…
1105	}	1727	}
1106		1728
1107	\@paths	1729	\@paths
1108	}	1730	}
1109		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1111		1737
1112	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1113		1739
1114	=cut	1740	=cut
1115		1741
1116	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1118		1744
1119	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1746	}
1123		1747
1124	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1125		1790
1126	=back	1791	=back
1127
1128		1792
1129	=head3 cf::map	1793	=head3 cf::map
1130		1794
1131	=over 4	1795	=over 4
1132		1796
…		…
1144	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1146		1810
1147	sub generate_random_map {	1811	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1149	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1817	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1179		1846
1180	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1181	}	1848	}
1182		1849
1183	# also paths starting with '/'	1850	# also paths starting with '/'
1184	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1185		1852
1186	sub thawer_merge {	1853	sub thawer_merge {
1187	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1188		1855
1189	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1190	local $self->{path};	1857	local $self->{path};
1191	local $self->{load_path};	1858	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1859
1195	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1196	}	1861	}
1197		1862
1198	sub normalise {	1863	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1246	return $self;	1911	return $self;
1247	}	1912	}
1248	}	1913	}
1249		1914
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1916	()
1252	}	1917	}
1253		1918
1254	sub init {	1919	sub init {
1255	my ($self) = @_;	1920	my ($self) = @_;
…		…
1270		1935
1271	# the original (read-only) location	1936	# the original (read-only) location
1272	sub load_path {	1937	sub load_path {
1273	my ($self) = @_;	1938	my ($self) = @_;
1274		1939
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1940	"$MAPDIR/$self->{path}.map"
1276	}	1941	}
1277		1942
1278	# the temporary/swap location	1943	# the temporary/swap location
1279	sub save_path {	1944	sub save_path {
1280	my ($self) = @_;	1945	my ($self) = @_;
1281		1946
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1948	"$TMPDIR/$path.map"
1284	}	1949	}
1285		1950
1286	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1287	sub uniq_path {	1952	sub uniq_path {
1288	my ($self) = @_;	1953	my ($self) = @_;
1289		1954
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1956	"$UNIQUEDIR/$path"
1292	}	1957	}
1293		1958
1294	# and all this just because we cannot iterate over	1959	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1960	my ($self) = @_;
1298		1961
1299	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1301	}	1965	}
1302		1966
1303	sub unlink_save {	1967	sub unlink_save {
1304	my ($self) = @_;	1968	my ($self) = @_;
1305		1969
1306	utf8::encode (my $save = $self->save_path);	1970	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1971	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1972	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	}	1973	}
1315		1974
1316	sub load_header_from($) {	1975	sub load_header_from($) {
1317	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1318		1977
1319	utf8::encode $path;	1978	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1980	or return;
		1981
		1982	$self->_load_header ($f)
		1983	or return;
		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
1325		1987
1326	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1327		1989
1328	1	1990	1
1329	}	1991	}
…		…
1368	$self->load_header_orig	2030	$self->load_header_orig
1369	or return;	2031	or return;
1370	$self->prepare_orig;	2032	$self->prepare_orig;
1371	}	2033	}
1372		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
		2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
		2040
1373	1	2041	1
1374	}	2042	}
1375		2043
1376	sub find;	2044	sub find;
1377	sub find {	2045	sub find {
1378	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1379		2047
1380	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1381		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1383		2052
1384	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1387	or return;	2055	or return;
1388		2056
1389	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1390		2058
1391	$map->load_header	2059	$map->load_header
1392	or return;	2060	or return;
1393		2061
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1397	$map->reset;	2067	$map->reset;
1398	undef $guard;
1399	return find $path;	2068	return find $path;
1400	}	2069	}
1401		2070
1402	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1403	}	2072	}
1404	}	2073	}
1405		2074
1406	sub pre_load { }	2075	sub pre_load { }
1407	sub post_load { }	2076	#sub post_load { } # XS
1408		2077
1409	sub load {	2078	sub load {
1410	my ($self) = @_;	2079	my ($self) = @_;
1411		2080
1412	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1413		2082
1414	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1416		2087
		2088	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2090
1419	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1420		2092
1421	$self->alloc;	2093	$self->alloc;
1422		2094
1423	$self->pre_load;	2095	$self->pre_load;
		2096	cf::cede_to_tick;
1424		2097
1425	$self->_load_objects ($self->{load_path}, 1)	2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1426	or return;	2101	or return;
1427		2102
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1429	if delete $self->{load_original};	2104	if delete $self->{load_original};
1430		2105
1431	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2107	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2110	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1436	}	2114	}
1437	}	2115	}
1438		2116
1439	Coro::cede;	2117	$f->resolve_delayed_derefs;
1440		2118
		2119	cf::cede_to_tick;
1441	# now do the right thing for maps	2120	# now do the right thing for maps
1442	$self->link_multipart_objects;	2121	$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)	2122	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2123	unless $self->difficulty;
1452	Coro::cede;	2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1453	$self->activate;	2131	$self->activate;
		2132	}
		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
		2137	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2138	}
1455		2139
1456	$self->post_load;	2140	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2141	}
1460		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1461	sub customise_for {	2146	sub customise_for {
1462	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1463		2148
1464	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2150	if $self->per_player;
1466		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1467	$self	2155	$self
1468	}	2156	}
1469		2157
1470	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2159	sub load_neighbours {
1472	my ($map) = @_;	2160	my ($map) = @_;
1473		2161
1474	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1475		2163
1476	for (0 .. 3) {	2164	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1478	or next;	2166	or next;
1479	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1480	or next;	2168	or next;
1481	$neigh->load;	2169	$neigh->load;
1482		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2175	}
1486		2176
1487	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1489	or next;	2180	or next;
1490	$neigh->load;	2181	$neigh->load;
1491	}	2182	}
1492	}	2183	}
1493		2184
…		…
1498	}	2189	}
1499		2190
1500	sub do_load_sync {	2191	sub do_load_sync {
1501	my ($map) = @_;	2192	my ($map) = @_;
1502		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1503	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1504	}	2198	}
1505		2199
1506	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1508		2202
1509	sub find_async {	2203	sub find_async {
1510	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1511		2205
1512	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1513		2207
1514	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2210	}
1517		2211
1518	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1519	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1520	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2219	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2220	$map->load if $v;
		2221	}
1525		2222
1526	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1527	}	2224	}
1528	}	2225	}
1529	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1530	};	2227	};
1531	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1532		2229
1533	()	2230	()
1534	}	2231	}
1535		2232
		2233	# common code, used by both ->save and ->swapout
1536	sub save {	2234	sub _save {
1537	my ($self) = @_;	2235	my ($self) = @_;
1538
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
1540		2236
1541	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1542		2238
1543	return unless $self->dirty;	2239	return unless $self->dirty;
1544		2240
…		…
1550	return if $self->{deny_save};	2246	return if $self->{deny_save};
1551		2247
1552	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1553		2249
1554	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1556	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1557		2256
1558	if ($uniq) {	2257	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2260	} else {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1563	}	2262	}
1564	}	2263	}
1565		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1566	sub swap_out {	2273	sub swap_out {
1567	my ($self) = @_;	2274	my ($self) = @_;
1568		2275
1569	# save first because save cedes
1570	$self->save;
1571
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1574	return if $self->players;	2280	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;
1576	return if $self->{deny_save};
1577		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1578	$self->clear;	2291	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2292	}
1581		2293
1582	sub reset_at {	2294	sub reset_at {
1583	my ($self) = @_;	2295	my ($self) = @_;
1584		2296
1585	# TODO: safety, remove and allow resettable per-player maps	2297	# 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};	2298	return 1e99 if $self->{deny_reset};
1588		2299
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2302
…		…
1602	my ($self) = @_;	2313	my ($self) = @_;
1603		2314
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2316
1606	return if $self->players;	2317	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2318
1609	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1610		2330
1611	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1612		2332
1613	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2335	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2336
1618	$self->unlink_save;	2337	$self->unlink_save;
1619	$self->destroy;	2338	$self->destroy;
1620	}	2339	}
1621		2340
1622	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1623		2342
1624	sub nuke {	2343	sub nuke {
1625	my ($self) = @_;	2344	my ($self) = @_;
1626		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1627	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1628		2350
1629	$self->unlink_save;	2351	$self->unlink_save;
1630		2352
1631	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1632	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2358
1637	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1638		2361
1639	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1640	}	2399	}
1641		2400
1642	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1643		2402
1644	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2404	instantiated unique items. May block.
1646		2405
1647	=cut	2406	=cut
1648		2407
1649	sub unique_maps() {	2408	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2409	[
1651	or return;	2410	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2411	utf8::decode $_;
1657	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2414	? ()
1660	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2417	]
1662
1663	\@paths
1664	}	2418	}
1665		2419
1666	package cf;	2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
		2447	}
		2448
		2449	\@maps
		2450	}
1667		2451
1668	=back	2452	=back
1669		2453
1670	=head3 cf::object	2454	=head3 cf::object
1671		2455
…		…
1675		2459
1676	=over 4	2460	=over 4
1677		2461
1678	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1679		2463
1680	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1681		2466
1682	=cut	2467	=cut
1683		2468
1684	sub inv_recursive_;	2469	sub inv_recursive_;
1685	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1688		2473
1689	sub inv_recursive {	2474	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1691	}	2476	}
1692		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1693	package cf;	2506	package cf;
1694		2507
1695	=back	2508	=back
1696		2509
1697	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1706		2519
1707	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1708		2535
1709	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2537	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1714		2541
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2543
1717	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1719	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1722	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1723	}	2569	}
1724		2570
1725	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1726		2572
1727	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1740		2586
1741	=item $player_object->enter_link	2587	=item $player_object->enter_link
1742		2588
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2590
1745	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1747		2595
1748	Will never block.	2596	Will never block.
1749		2597
1750	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1751		2599
…		…
1771	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1772	my ($self) = @_;	2620	my ($self) = @_;
1773		2621
1774	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1775		2623
		2624	++$self->{_link_recursion};
		2625
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2627
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1780		2630
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1782	}	2632	}
1783		2633
1784	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1786		2638
1787	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1788		2640
1789	unless ($map) {	2641	unless ($map) {
1790	# restore original map position	2642	# restore original map position
…		…
1801	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1802	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1803		2655
1804	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1807		2659
1808	$map->load;	2660	$map->load;
1809	$map->load_diag;	2661	$map->load_neighbours;
1810		2662
1811	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2670	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}
1815
1816	cf::player->attach (
1817	on_logout => sub {
1818	my ($pl) = @_;
1819
1820	# abort map switching before logout
1821	if ($pl->ob->{_link_pos}) {
1822	cf::sync_job {
1823	$pl->ob->leave_link
1824	};
1825	}
1826	},	2671	}
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2672
1830	# try to abort aborted map switching on player login :)	2673	}
1831	# should happen only on crashes
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		2674
1848	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1849		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1850	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1851		2689
1852	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2701
1855	$self->enter_link;	2702	$self->enter_link;
1856		2703
1857	(async {	2704	(async {
		2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
1858	my $map = eval {	2726	my $map = eval {
1859	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
		2732	} else {
		2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
		2735
1861	$map	2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2742	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1866	})->prio (1);	2750	})->prio (1);
1867	}	2751	}
1868		2752
1869	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1870		2754
…		…
1890	}	2774	}
1891		2775
1892	sub prepare_random_map {	2776	sub prepare_random_map {
1893	my ($exit) = @_;	2777	my ($exit) = @_;
1894		2778
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2781	# that depends on the exit object
1900		2782
1901	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2785	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1908	}	2792	}
1909		2793
1910	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1911		2795
1912	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
1915		2799
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2802	undef $fh;
1919	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
1920		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1923	}	2811	}
1924	}	2812	}
1925		2813
1926	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1928		2816
1929	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1930		2818
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;	2819	$self->enter_link;
1941		2820
1942	(async {	2821	(async {
1943	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1944	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
		2831	prepare_random_map $exit
		2832	if $exit->slaying eq "/!";
		2833	}
		2834
		2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
		2838
1945	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
1946		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1947	1;	2845	1
1948	}) {	2846	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2851
1954	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2853	$self->leave_link;
1956	}	2854	}
1957	})->prio (1);	2855	})->prio (1);
…		…
1970		2868
1971	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1973		2871
1974	utf8::encode $text;	2872	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2874	}
1977		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1978		3097
1979	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1980		3099
1981	Queues a query to the client, calling the given callback with	3100	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>,	3101	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>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		3103
1985	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	3105	become reliable at some point in the future.
1987		3106
1988	=cut	3107	=cut
1989		3108
1990	sub cf::client::query {	3109	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	3118	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		3120
2002	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
2004	}	3125	}
2005		3126
2006	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
2007	on_reply => sub {	3133	on_reply => sub {
2008	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2009		3135
2010	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2011	# get handled first	3137	# get handled first
…		…
2023	} else {	3149	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3151	}
2026	}	3152	}
2027	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
2028	);	3180	);
2029		3181
2030	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2031		3183
2032	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048		3200
2049	$coro	3201	$coro
2050	}	3202	}
2051		3203
2052	cf::client->attach (	3204	cf::client->attach (
2053	on_destroy => sub {	3205	on_client_destroy => sub {
2054	my ($ns) = @_;	3206	my ($ns) = @_;
2055		3207
2056	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2057	},	3209	},
2058	);	3210	);
…		…
2073	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2075		3227
2076	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2077		3229
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2079		3235
2080	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2081		3237
2082	=pod	3238	=pod
2083		3239
2084	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2085		3241
2086	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2087	cf::object::player player	3247	cf::object::player
2088	cf::player peaceful	3248	player
2089	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2090		3255
2091	=cut	3256	=cut
2092		3257
2093	for (	3258	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2098	) {	3265	) {
2099	no strict 'refs';	3266	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2119		3286
2120	my $qcode = $code;	3287	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2123		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2124	local $_;	3294	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;
2126		3295
2127	my $eval =	3296	my $eval =
2128	"do {\n"	3297	"do {\n"
2129	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2130	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2131	. $code	3300	. $code
2132	. "\n}"	3301	. "\n}"
2133	;	3302	;
2134		3303
		3304	if ($CFG{safe_eval}) {
2135	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2136	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2137	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2138		3313
2139	if ($@) {	3314	if ($@) {
2140	warn "$@";	3315	warn "$@";
2141	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2142	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2161	=cut	3336	=cut
2162		3337
2163	sub register_script_function {	3338	sub register_script_function {
2164	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2165		3340
2166	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2167	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2168	}	3343	}
2169		3344
2170	=back	3345	=back
2171		3346
2172	=cut	3347	=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]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281		3348
2282	#############################################################################	3349	#############################################################################
2283	# the server's init and main functions	3350	# the server's init and main functions
2284		3351
		3352	sub load_facedata($) {
		3353	my ($path) = @_;
		3354
		3355	# HACK to clear player env face cache, we need some signal framework
		3356	# for this (global event?)
		3357	%ext::player_env::MUSIC_FACE_CACHE = ();
		3358
		3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3360
		3361	warn "loading facedata from $path\n";
		3362
		3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
		3366
		3367	$facedata = Coro::Storable::thaw $facedata;
		3368
		3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3371
		3372	# patch in the exptable
		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3374	$facedata->{resource}{"res/exp_table"} = {
		3375	type => FT_RSRC,
		3376	data => $exp_table,
		3377	hash => (Digest::MD5::md5 $exp_table),
		3378	};
		3379	cf::cede_to_tick;
		3380
		3381	{
		3382	my $faces = $facedata->{faceinfo};
		3383
		3384	while (my ($face, $info) = each %$faces) {
		3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
		3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
		3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3391
		3392	cf::cede_to_tick;
		3393	}
		3394
		3395	while (my ($face, $info) = each %$faces) {
		3396	next unless $info->{smooth};
		3397
		3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
2285	sub load_resources {	3473	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
		3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
		3488	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3489	or die "unable to load regions file\n";
2288	}
2289		3490
2290	sub cfg_load {	3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
		3495	}
		3496
		3497	sub reload_facedata {
		3498	load_facedata "$DATADIR/facedata"
		3499	or die "unable to load facedata\n";
		3500	}
		3501
		3502	sub reload_archetypes {
		3503	load_resource_file "$DATADIR/archetypes"
		3504	or die "unable to load archetypes\n";
		3505	}
		3506
		3507	sub reload_treasures {
		3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
		3510	}
		3511
		3512	sub reload_resources {
		3513	warn "reloading resource files...\n";
		3514
		3515	reload_facedata;
		3516	reload_archetypes;
		3517	reload_regions;
		3518	reload_treasures;
		3519
		3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3527	or return;
2293		3528
2294	local $/;	3529	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2296		3531
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2298		3533
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2301		3536
2302	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	3541	};
2307	warn $@ if $@;	3542	warn $@ if $@;
2308	}	3543	}
2309	}
2310		3544
2311	sub init {	3545	warn "finished reloading resource files\n";
2312	load_resources;	3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3574	}
2314		3575
2315	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2316	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3589	(async {
2320	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2322	};	3593	};
2323		3594
2324	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
		3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2326	load_extensions;	3618	load_extensions;
2327		3619
2328	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2330	}	3633	}
2331		3634
2332	#############################################################################	3635	#############################################################################
2333	# initialisation and cleanup	3636	# initialisation and cleanup
2334		3637
2335	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2336	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3642	$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";	3643	cf::cleanup "SIG$signal";
2345	},
2346	);	3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
2347	}	3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
2348	}	3734	}
2349		3735
2350	sub emergency_save() {	3736	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2352		3738
2353	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2354		3740
2355	cf::sync_job {	3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
2356	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3755	$pl->save;
2364	}	3756	}
2365	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2366		3758
2367	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3762	$map->valid or next;
2371	$map->save;	3763	$map->save;
2372	}	3764	}
2373	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
		3766
		3767	warn "emergency_perl_save: begin database checkpoint\n";
		3768	BDB::db_env_txn_checkpoint $DB_ENV;
		3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2374	};	3774	};
2375		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2376	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2377	}	3782	}
2378		3783
		3784	sub post_cleanup {
		3785	my ($make_core) = @_;
		3786
		3787	warn Carp::longmess "post_cleanup backtrace"
		3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
		3817	}
		3818
2379	sub reload() {	3819	sub do_reload_perl() {
2380	# can/must only be called in main	3820	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2382	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2383	return;	3823	return;
2384	}	3824	}
2385		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2386	warn "reloading...";	3831	warn "reloading...";
2387		3832
2388	warn "cancelling server ticker";	3833	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3834
		3835	cf::sync_job {
		3836	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3837	cf::emergency_save;
		3838	cf::write_runtime_sync; # external watchdog should not bark
2392		3839
2393	eval {	3840	warn "syncing database to disk";
		3841	BDB::db_env_txn_checkpoint $DB_ENV;
		3842
2394	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2395		3844
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";	3845	warn "flushing outstanding aio requests";
2405	for (;;) {	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3847	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	}	3848	}
2432		3849
2433	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2435	}	3852	%EXT_CORO = ();
2436		3853
2437	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3863	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3864
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2448	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2449	}	3874	}
2450		3875
2451	Symbol::delete_package $k;	3876	warn "unloading all perl modules loaded from $LIBDIR";
		3877	while (my ($k, $v) = each %INC) {
		3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
2452	}	3891	}
2453		3892
2454	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3896
2458	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3900
2461	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3902	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2464		3904
2465	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2466		3906
2467	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2468	require cf;	3908	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2470		3910
2471	warn "loading config and database again";	3911	warn "loading config and database again";
2472	cf::cfg_load;	3912	cf::reload_config;
2473	cf::db_load;
2474		3913
2475	warn "loading extensions";	3914	warn "loading extensions";
2476	cf::load_extensions;	3915	cf::load_extensions;
2477		3916
		3917	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3919	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
		3922	warn "reattaching attachments to players";
		3923	reattach $_ for values %PLAYER;
		3924	}
2482		3925
2483	warn "loading reloadable resources";	3926	warn "running post_init jobs";
2484	load_resources;	3927	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3928
2486	warn "restarting server ticker";	3929	warn "leaving sync_job";
2487		3930
2488	$TICK_WATCHER->start;	3931	1
		3932	} or do {
		3933	warn $@;
		3934	cf::cleanup "error while reloading, exiting.";
		3935	};
		3936
		3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
		3943	};
		3944
		3945	our $RELOAD_WATCHER; # used only during reload
		3946
		3947	sub reload_perl() {
		3948	# doing reload synchronously and two reloads happen back-to-back,
		3949	# coro crashes during coro_state_free->destroy here.
		3950
		3951	$RELOAD_WATCHER ||= cf::async {
		3952	Coro::AIO::aio_wait cache_extensions;
		3953
		3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3955	do_reload_perl;
		3956	undef $RELOAD_WATCHER;
		3957	};
2489	};	3958	};
2490		3959	}
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		3960
2502	register_command "reload" => sub {	3961	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2504		3963
2505	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
2507		3966	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3967	$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;	3968	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3969	};
2520	}	3970	}
2521	};	3971	};
2522		3972
2523	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2524		3974
2525	my $bug_warning = 0;	3975	my $bug_warning = 0;
2526		3976
2527	$TICK_WATCHER = Event->timer (	3977	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3978	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3979
2530	prio => 0,	3980	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3982
2533	cb => sub {	3983	my $signal = new Coro::Signal;
		3984	push @WAIT_FOR_TICK, $signal;
		3985	$signal->wait;
		3986	}
		3987
		3988	sub wait_for_tick_begin {
		3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3990
		3991	my $signal = new Coro::Signal;
		3992	push @WAIT_FOR_TICK_BEGIN, $signal;
		3993	$signal->wait;
		3994	}
		3995
		3996	sub tick {
2534	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2537	return;	4000	return;
2538	}	4001	}
2539		4002
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		4004
2546	$WAIT_FOR_TICK->broadcast;	4005	#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		4006
2549	Event::sweep;	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2550	Coro::cede_notself;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4009	Coro::async_pool {
		4010	$Coro::current->{desc} = "runtime saver";
		4011	write_runtime_sync
		4012	or warn "ERROR: unable to write runtime file: $!";
		4013	};
		4014	}
		4015
		4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4017	$sig->send;
		4018	}
		4019	while (my $sig = shift @WAIT_FOR_TICK) {
		4020	$sig->send;
		4021	}
		4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
2551		4031	}
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	},	4032	}
2561	);	4033	}
2562		4034
2563	{	4035	{
2564	BDB::max_poll_time $TICK * 0.1;	4036	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	4037
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;	4038	BDB::min_parallel 16;
2574		4039	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	4040	$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		4041
2590	unless ($DB_ENV) {	4042	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		4049
2593	cf::sync_job {	4050	cf::sync_job {
		4051	eval {
2594	BDB::db_env_open	4052	BDB::db_env_open
2595	$DB_ENV,	4053	$DB_ENV,
2596	$BDB_ENV_DIR,	4054	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	4057	0666;
2600		4058
2601	cf::cleanup "$!" if $!;	4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		4060	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	4061
2604	$DB_ENV->set_lk_detect;	4062	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	4063	};
2606	}	4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
2607	}	4075	}
2608		4076
2609	{	4077	{
		4078	# configure IO::AIO
		4079
2610	IO::AIO::min_parallel 8;	4080	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	4081	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	4082	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	4083	}
2623		4084
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	4085	my $_log_backtrace;
2625	reentrant => 0,	4086
2626	data => WF_AUTOCANCEL,	4087	sub _log_backtrace {
2627	after => 1,	4088	my ($msg, @addr) = @_;
2628	interval => 10,	4089
2629	prio => 6, # keep it lowest so it acts like a watchdog	4090	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	4091
2631	write_runtime	4092	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	4124	}
2634	);	4125	}
		4126
		4127	# load additional modules
		4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2635		4130
2636	END { cf::emergency_save }	4131	END { cf::emergency_save }
2637		4132
2638	1	4133	1
2639		4134

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