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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC vs.
Revision 1.527 by root, Fri Apr 23 04:32:47 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 Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	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 = 0;#d#
71		118
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	121	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	126	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
82		130
83	our %CFG;	131	our %CFG;
84		132
85	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
87		136
88	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
91		140
92	# 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 ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		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 $REALLY_UNLOOP; # never set to true, please :)
		153
95	binmode STDOUT;	154	binmode STDOUT;
96	binmode STDERR;	155	binmode STDERR;
97		156
98	# read virtual server time, if available	157	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	159	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
103	}	162	}
		163
		164	eval "sub TICK() { $TICK } 1" or die;
104		165
105	mkdir $_	166	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		168
108	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
109		170
110	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::"} };
111		187
112	#############################################################################	188	#############################################################################
113		189
114	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
115		191
…		…
139		215
140	=item $cf::TICK	216	=item $cf::TICK
141		217
142	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
143		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
144	=item %cf::CFG	230	=item %cf::CFG
145		231
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	233	from wherever your confdir points to.
148		234
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		236
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	238	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		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.
		252
155	=back	253	=back
156		254
157	=cut	255	=cut
158		256
159	BEGIN {	257	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	258	my $msg = join "", @_;
162		259
163	$msg .= "\n"	260	$msg .= "\n"
164	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
165		262
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		264
168	utf8::encode $msg;
169	LOG llevError, $msg;	265	LOG llevError, $msg;
170	};	266	};
171	}	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	};
172		281
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		289
180	# 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
181	# within the Safe compartment.	291	# within the Safe compartment.
182	for my $pkg (qw(	292	for my $pkg (qw(
183	cf::global cf::attachable	293	cf::global cf::attachable
184	cf::object cf::object::player	294	cf::object cf::object::player
185	cf::client cf::player	295	cf::client cf::player
186	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
187	cf::map cf::party cf::region	298	cf::party cf::region
188	)) {	299	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	301	}
192		302
193	$Event::DIED = sub {	303	$EV::DIED = sub {
194	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
195	};	305	};
		306
		307	#############################################################################
196		308
197	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
198		310
199	=over 4	311	=over 4
200		312
…		…
219	$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;
220	$d	332	$d
221	} || "[unable to dump $_[0]: '$@']";	333	} || "[unable to dump $_[0]: '$@']";
222	}	334	}
223		335
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
227		337
228	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
229		339
230	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
231		341
232	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
233		343
		344	=cut
		345
		346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		347
		348	sub encode_json($) { $json_coder->encode ($_[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;
		363	}
		364
234	=item cf::lock_wait $string	365	=item cf::lock_wait $string
235		366
236	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
237		368
238	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
239		370
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
243	returned.	374	returned.
244		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
245	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
246	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
247		381
248	=item $locked = cf::lock_active $string	382	=item $locked = cf::lock_active $string
249		383
250	Return true if the lock is currently active, i.e. somebody has locked it.	384	Return true if the lock is currently active, i.e. somebody has locked it.
251		385
252	=cut	386	=cut
253		387
254	our %LOCK;	388	our $LOCKS = new Coro::SemaphoreSet;
255		389
256	sub lock_wait($) {	390	sub lock_wait($) {
257	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	392	}
265		393
266	sub lock_acquire($) {	394	sub lock_acquire($) {
267	my ($key) = @_;	395	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	396	}
279		397
280	sub lock_active($) {	398	sub lock_active($) {
281	my ($key) = @_;	399	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	400	}
285		401
286	sub freeze_mainloop {	402	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
288		404
289	my $guard = Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	406	}
		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($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
291	};	472	}
292	$TICK_WATCHER->stop;	473	};
293	$guard	474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
294	}	488	}
295		489
296	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
297		491
298	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		497
304	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
305		499
306	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
307		501
308	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
311		506
312	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
315	fast or be very important.	510	fast or be very important.
…		…
318		513
319	sub sync_job(&) {	514	sub sync_job(&) {
320	my ($job) = @_;	515	my ($job) = @_;
321		516
322	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
323	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
325		522
326	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	524
328	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
329		526
330	my $busy = 1;	527	my $busy = 1;
331	my @res;	528	my @res;
332		529
333	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	532	@res = eval { $job->() };
335	warn $@ if $@;	533	warn $@ if $@;
336	undef $busy;	534	undef $busy;
337	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
338		536
339	while ($busy) {	537	while ($busy) {
340	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
341	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
342		548
343	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
344	} else {	550	} else {
345	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
346		552
…		…
366	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
367		573
368	$coro	574	$coro
369	}	575	}
370		576
371	sub write_runtime {	577	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		578
374	my $runtime = "$LOCALDIR/runtime";	579	Executes the given code block with the given arguments in a seperate
		580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
375		583
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	584	=cut
377	or return;
378		585
379	my $value = $cf::RUNTIME + 90 + 10;	586	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	587	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		588
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	589	# we seemingly have to make a local copy of the whole thing,
384	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
385		592
386	# always fsync - this file is important	593	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	594	reset_signals;
388	and return;	595	&$cb
		596	}, @args;
389		597
390	close $fh	598	wantarray ? @res : $res[-1]
391	or return;	599	}
392		600
393	aio_rename "$runtime~", $runtime	601	sub objinfo {
394	and return;
395
396	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"
397	}	764	}
398		765
399	=item cf::datalog type => key => value, ...	766	=item cf::datalog type => key => value, ...
400		767
401	Log a datalog packet of the given type with the given key-value pairs.	768	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		780
414	#############################################################################	781	#############################################################################
415		782
416	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
417		784
418	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
419	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")
420	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
421		788
422	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>
423	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
424	crossfire+).	791	Deliantra).
425		792
426	=over 4	793	=over 4
427		794
428	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
429		796
…		…
473	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
474		841
475	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
477		844
478	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
479	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.
480		847
481	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
482		849
483	=over 4	850	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
593		960
594	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		965
599	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	967	my $pkg = shift @arg;
601		968
602	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
632	}	999	}
633		1000
634	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
635	} else {	1002	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	1004	}
638		1005
639	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
640	}	1007	}
641		1008
…		…
643	if (ref $_[0]) {	1010	if (ref $_[0]) {
644	_object_attach @_;	1011	_object_attach @_;
645	} else {	1012	} else {
646	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
647	}	1014	}
		1015	_recalc_want;
648	};	1016	};
649		1017
650	# all those should be optimised	1018	# all those should be optimised
651	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1024	reattach ($obj);
657	} else {	1025	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
659	}	1027	}
		1028	_recalc_want;
660	};	1029	};
661		1030
662	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
664		1033
…		…
679	";	1048	";
680	die if $@;	1049	die if $@;
681	}	1050	}
682		1051
683	our $override;	1052	our $override;
684	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?
685		1054
686	sub override {	1055	sub override {
687	$override = 1;	1056	$override = 1;
688	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
689	}	1058	}
690		1059
691	sub do_invoke {	1060	sub do_invoke {
692	my $event = shift;	1061	my $event = shift;
693	my $callbacks = shift;	1062	my $callbacks = shift;
694		1063
695	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
696		1065
697	local $override;	1066	local $override;
698		1067
699	for (@$callbacks) {	1068	for (@$callbacks) {
700	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
709	}	1078	}
710		1079
711	0	1080	0
712	}	1081	}
713		1082
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1084
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1086
718	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
719		1088
720	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
721	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
722	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1092
724	=back	1093	=back
725		1094
726	=cut	1095	=cut
727		1096
728	#############################################################################	1097	#############################################################################
729	# 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, $ob2
		1140	}
730		1141
731	sub reattach {	1142	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1144	my ($obj) = @_;
734		1145
		1146	# no longer needed after getting rid of delete_package?
735	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
736		1148
737	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
738		1150
739	@$registry = ();	1151	@$registry = ();
740		1152
…		…
755	cf::attachable->attach (	1167	cf::attachable->attach (
756	prio => -1000000,	1168	prio => -1000000,
757	on_instantiate => sub {	1169	on_instantiate => sub {
758	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
759		1171
760	$data = from_json $data;	1172	$data = decode_json $data;
761		1173
762	for (@$data) {	1174	for (@$data) {
763	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
764		1176
765	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1193	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
783		1195
784	sync_job {	1196	sync_job {
785	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
788		1202
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	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	}
793	close $fh;	1210	aio_close $fh;
794		1211
795	if (@$objs) {	1212	if (@$objs) {
796	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) {
797	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
800	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	}
801	close $fh;	1221	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
803	}	1223	}
804	} else {	1224	} else {
805	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
806	}	1226	}
807		1227
808	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1232	} else {
810	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
811	}	1234	}
812	} else {	1235	} else {
813	aio_unlink $filename;	1236	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
815	}	1238	}
816	}	1239	};
817	}	1240	}
818		1241
819	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
821		1244
…		…
833	or return;	1256	or return;
834		1257
835	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
837	or return;	1260	or return;
		1261
838	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
839	}	1264	}
840		1265
		1266	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
843	return ($data, $av);	1271	($data, $av)
844	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
845		1279
846	#############################################################################	1280	#############################################################################
847	# command handling &c	1281	# command handling &c
848		1282
849	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1297	}
864		1298
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1300
867	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.
868		1306
869	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
870	called.	1308	called.
871		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
872	=cut	1321	=cut
873		1322
874	sub register_extcmd {	1323	sub register_extcmd {
875	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
876		1325
877	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
878	}	1327	}
879		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
880	cf::player->attach (	1337	cf::player->attach (
881	on_command => sub {	1338	on_unknown_command => sub {
882	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
883		1340
884	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
885	or return;	1342	or return;
886		1343
…		…
891	cf::override;	1348	cf::override;
892	},	1349	},
893	on_extcmd => sub {	1350	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
895		1352
896	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1354
898	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
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
904	} else {	1370	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1372	}
907		1373
908	cf::override;	1374	cf::override;
909	},	1375	},
910	);	1376	);
911		1377
		1378	# "readahead" all extensions
912	sub load_extension {	1379	sub cache_extensions {
913	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
914		1381
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1385	}
940	die $@;
941	}	1386	};
942		1387
943	push @EXTS, $pkg;	1388	$grp
944	}	1389	}
945		1390
946	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
947	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1396	next unless -r $path;
949	eval {	1397
950	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 $active;
		1460	}
951	1	1461	}
952	} or warn "$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	}
953	}	1472	};
954	}	1473	}
955		1474
956	#############################################################################	1475	#############################################################################
957		1476
		1477	=back
		1478
958	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
959		1480
960	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
961		1482
962	=cut	1483	=cut
963		1484
964	package cf::player;	1485	package cf::player;
965		1486
966	use Coro::AIO;	1487	use Coro::AIO;
967		1488
968	=head3 cf::player	1489	=head3 cf::player
969		1490
970	=over 4	1491	=over 4
		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	}
971		1506
972	=item cf::player::find $login	1507	=item cf::player::find $login
973		1508
974	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
975		1510
…		…
994		1529
995	sub exists($) {	1530	sub exists($) {
996	my ($login) = @_;	1531	my ($login) = @_;
997		1532
998	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
1000	}	1535	}
1001		1536
1002	sub find($) {	1537	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1539	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1549	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1550
1016	my $pl = load_pl path $login	1551	my $f = new_from_file cf::object::thawer path $login
1017	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;
1018	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
1019	}	1560	}
1020	}	1561	}
1021	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
1022		1576
1023	sub save($) {	1577	sub save($) {
1024	my ($pl) = @_;	1578	my ($pl) = @_;
1025		1579
1026	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1031	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1032		1586
1033	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1035		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
1036	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1037	Coro::cede;	1596	cf::cede_to_tick;
1038	}	1597	}
1039		1598
1040	sub new($) {	1599	sub new($) {
1041	my ($login) = @_;	1600	my ($login) = @_;
1042		1601
…		…
1048	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1049		1608
1050	$self	1609	$self
1051	}	1610	}
1052		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
1053	=item $pl->quit_character	1622	=item $pl->quit_character
1054		1623
1055	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1057		1626
…		…
1061	my ($pl) = @_;	1630	my ($pl) = @_;
1062		1631
1063	my $name = $pl->ob->name;	1632	my $name = $pl->ob->name;
1064		1633
1065	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1066	$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
1067		1636
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1072		1643
1073	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1681	or return [];
1111		1682
1112	my @logins;	1683	my @logins;
1113		1684
1114	for my $login (@$dirs) {	1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1692	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
1118		1695
1119	utf8::decode $login;	1696	utf8::decode $login;
1120	push @logins, $login;	1697	push @logins, $login;
1121	}	1698	}
1122		1699
1123	\@logins	1700	\@logins
1124	}	1701	}
1125		1702
1126	=item $player->maps	1703	=item $player->maps
		1704
		1705	=item cf::player::maps $login
1127		1706
1128	Returns an arrayref of map paths that are private for this	1707	Returns an arrayref of map paths that are private for this
1129	player. May block.	1708	player. May block.
1130		1709
1131	=cut	1710	=cut
…		…
1149	}	1728	}
1150		1729
1151	\@paths	1730	\@paths
1152	}	1731	}
1153		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
1154	=item $player->ext_reply ($msgid, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1155		1738
1156	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1157		1740
1158	=cut	1741	=cut
1159		1742
1160	sub ext_reply($$%) {	1743	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1162		1745
1163	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1747	}
1167		1748
1168	=item $player->ext_event ($type, %msg)	1749	=item $player->ext_msg ($type, @msg)
1169		1750
1170	Sends an ext event to the client.	1751	Sends an ext event to the client.
1171		1752
1172	=cut	1753	=cut
1173		1754
1174	sub ext_event($$%) {	1755	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1756	my ($self, $type, @msg) = @_;
1176		1757
1177	$self->ns->ext_event ($type, %msg);	1758	$self->ns->ext_msg ($type, @msg);
1178	}	1759	}
1179		1760
1180	=head3 cf::region	1761	=head3 cf::region
1181		1762
1182	=over 4	1763	=over 4
…		…
1185		1766
1186	package cf::region;	1767	package cf::region;
1187		1768
1188	=item cf::region::find_by_path $path	1769	=item cf::region::find_by_path $path
1189		1770
1190	Tries to decuce the probable region for a map knowing only its path.	1771	Tries to decuce the likely region for a map knowing only its path.
1191		1772
1192	=cut	1773	=cut
1193		1774
1194	sub find_by_path($) {	1775	sub find_by_path($) {
1195	my ($path) = @_;	1776	my ($path) = @_;
1196		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
1197	my ($match, $specificity);	1780	my ($match, $specificity);
1198		1781
1199	for my $region (list) {	1782	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1783	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1784	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1785	if $region->specificity > $specificity;
1203	}	1786	}
1204	}	1787	}
1205		1788
…		…
1226	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1228		1811
1229	sub generate_random_map {	1812	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1816
1231	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1818	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1261		1847
1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1263	}	1849	}
1264		1850
1265	# also paths starting with '/'	1851	# also paths starting with '/'
1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1267		1853
1268	sub thawer_merge {	1854	sub thawer_merge {
1269	my ($self, $merge) = @_;	1855	my ($self, $merge) = @_;
1270		1856
1271	# we have to keep some variables in memory intact	1857	# we have to keep some variables in memory intact
1272	local $self->{path};	1858	local $self->{path};
1273	local $self->{load_path};	1859	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1860
1277	$self->SUPER::thawer_merge ($merge);	1861	$self->SUPER::thawer_merge ($merge);
1278	}	1862	}
1279		1863
1280	sub normalise {	1864	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1911	$self->init; # pass $1 etc.
1328	return $self;	1912	return $self;
1329	}	1913	}
1330	}	1914	}
1331		1915
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1917	()
1334	}	1918	}
1335		1919
1336	sub init {	1920	sub init {
1337	my ($self) = @_;	1921	my ($self) = @_;
…		…
1359		1943
1360	# the temporary/swap location	1944	# the temporary/swap location
1361	sub save_path {	1945	sub save_path {
1362	my ($self) = @_;	1946	my ($self) = @_;
1363		1947
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1949	"$TMPDIR/$path.map"
1366	}	1950	}
1367		1951
1368	# the unique path, undef == no special unique path	1952	# the unique path, undef == no special unique path
1369	sub uniq_path {	1953	sub uniq_path {
1370	my ($self) = @_;	1954	my ($self) = @_;
1371		1955
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1957	"$UNIQUEDIR/$path"
1374	}	1958	}
1375		1959
1376	# and all this just because we cannot iterate over	1960	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1961	my ($self) = @_;
1380		1962
1381	$_->change_map_light ($change)	1963	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1964
		1965	$self->do_decay_objects;
1383	}	1966	}
1384		1967
1385	sub unlink_save {	1968	sub unlink_save {
1386	my ($self) = @_;	1969	my ($self) = @_;
1387		1970
…		…
1392		1975
1393	sub load_header_from($) {	1976	sub load_header_from($) {
1394	my ($self, $path) = @_;	1977	my ($self, $path) = @_;
1395		1978
1396	utf8::encode $path;	1979	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1981	or return;
		1982
		1983	$self->_load_header ($f)
		1984	or return;
		1985
		1986	local $MAP_LOADING{$self->{path}} = $self;
		1987	$f->resolve_delayed_derefs;
1402		1988
1403	$self->{load_path} = $path;	1989	$self->{load_path} = $path;
1404		1990
1405	1	1991	1
1406	}	1992	}
…		…
1445	$self->load_header_orig	2031	$self->load_header_orig
1446	or return;	2032	or return;
1447	$self->prepare_orig;	2033	$self->prepare_orig;
1448	}	2034	}
1449		2035
		2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
		2038
1450	$self->default_region (cf::region::find_by_path $self->{path})	2039	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	2040	unless $self->default_region;
1452		2041
1453	1	2042	1
1454	}	2043	}
…		…
1457	sub find {	2046	sub find {
1458	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1459		2048
1460	$path = normalise $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1461		2050
		2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2053
1464	$cf::MAP{$path} || do {	2054	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2055	my $map = new_from_path cf::map $path
1467	or return;	2056	or return;
1468		2057
1469	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1470		2059
1471	$map->load_header	2060	$map->load_header
1472	or return;	2061	or return;
1473		2062
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2064	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1477	$map->reset;	2068	$map->reset;
1478	undef $guard;
1479	return find $path;	2069	return find $path;
1480	}	2070	}
1481		2071
1482	$cf::MAP{$path} = $map	2072	$cf::MAP{$path} = $map
1483	}	2073	}
1484	}	2074	}
1485		2075
1486	sub pre_load { }	2076	sub pre_load { }
1487	sub post_load { }	2077	#sub post_load { } # XS
1488		2078
1489	sub load {	2079	sub load {
1490	my ($self) = @_;	2080	my ($self) = @_;
1491		2081
1492	local $self->{deny_reset} = 1; # loading can take a long time	2082	local $self->{deny_reset} = 1; # loading can take a long time
1493		2083
1494	my $path = $self->{path};	2084	my $path = $self->{path};
1495		2085
1496	{	2086	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2087	my $guard = cf::lock_acquire "map_data:$path";
1498		2088
		2089	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2091
1501	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1502		2093
1503	$self->alloc;	2094	$self->alloc;
1504		2095
1505	$self->pre_load;	2096	$self->pre_load;
1506	Coro::cede;	2097	cf::cede_to_tick;
1507		2098
		2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2101	$self->_load_objects ($f)
1509	or return;	2102	or return;
1510		2103
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1512	if delete $self->{load_original};	2105	if delete $self->{load_original};
1513		2106
1514	if (my $uniq = $self->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2108	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2111	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1519	}	2115	}
1520	}	2116	}
1521		2117
1522	Coro::cede;	2118	$f->resolve_delayed_derefs;
		2119
		2120	cf::cede_to_tick;
1523	# now do the right thing for maps	2121	# now do the right thing for maps
1524	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2124	unless $self->difficulty;
1527	Coro::cede;	2125	cf::cede_to_tick;
1528		2126
1529	unless ($self->{deny_activate}) {	2127	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2128	$self->decay_objects;
1531	$self->fix_auto_apply;	2129	$self->fix_auto_apply;
1532	$self->update_buttons;	2130	$self->update_buttons;
1533	Coro::cede;	2131	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2132	$self->activate;
1537	}	2133	}
1538		2134
		2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
		2137
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2138	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2139	}
1541		2140
1542	$self->post_load;	2141	$self->post_load;
1543	}	2142	}
1544		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
1545	sub customise_for {	2147	sub customise_for {
1546	my ($self, $ob) = @_;	2148	my ($self, $ob) = @_;
1547		2149
1548	return find "~" . $ob->name . "/" . $self->{path}	2150	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2151	if $self->per_player;
1550		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
1551	$self	2156	$self
1552	}	2157	}
1553		2158
1554	# find and load all maps in the 3x3 area around a map	2159	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2160	sub load_neighbours {
1556	my ($map) = @_;	2161	my ($map) = @_;
1557		2162
1558	my @diag; # diagonal neighbours	2163	my @neigh; # diagonal neighbours
1559		2164
1560	for (0 .. 3) {	2165	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2166	my $neigh = $map->tile_path ($_)
1562	or next;	2167	or next;
1563	$neigh = find $neigh, $map	2168	$neigh = find $neigh, $map
1564	or next;	2169	or next;
1565	$neigh->load;	2170	$neigh->load;
1566		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2176	}
1570		2177
1571	for (@diag) {	2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2180	my $neigh = find $path, $origin
1573	or next;	2181	or next;
1574	$neigh->load;	2182	$neigh->load;
1575	}	2183	}
1576	}	2184	}
1577		2185
…		…
1582	}	2190	}
1583		2191
1584	sub do_load_sync {	2192	sub do_load_sync {
1585	my ($map) = @_;	2193	my ($map) = @_;
1586		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1587	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
1588	}	2199	}
1589		2200
1590	our %MAP_PREFETCH;	2201	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2202	our $MAP_PREFETCHER = undef;
1592		2203
1593	sub find_async {	2204	sub find_async {
1594	my ($path, $origin) = @_;	2205	my ($path, $origin, $load) = @_;
1595		2206
1596	$path = normalise $path, $origin && $origin->{path};	2207	$path = normalise $path, $origin && $origin->{path};
1597		2208
1598	if (my $map = $cf::MAP{$path}) {	2209	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2211	}
1601		2212
1602	undef $MAP_PREFETCH{$path};	2213	$MAP_PREFETCH{$path} |= $load;
		2214
1603	$MAP_PREFETCHER ||= cf::async {	2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
1604	while (%MAP_PREFETCH) {	2218	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2219	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2220	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2221	$map->load if $v;
		2222	}
1609		2223
1610	delete $MAP_PREFETCH{$path};	2224	delete $MAP_PREFETCH{$k};
1611	}	2225	}
1612	}	2226	}
1613	undef $MAP_PREFETCHER;	2227	undef $MAP_PREFETCHER;
1614	};	2228	};
1615	$MAP_PREFETCHER->prio (6);	2229	$MAP_PREFETCHER->prio (6);
1616		2230
1617	()	2231	()
1618	}	2232	}
1619		2233
		2234	# common code, used by both ->save and ->swapout
1620	sub save {	2235	sub _save {
1621	my ($self) = @_;	2236	my ($self) = @_;
1622
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
1624		2237
1625	$self->{last_save} = $cf::RUNTIME;	2238	$self->{last_save} = $cf::RUNTIME;
1626		2239
1627	return unless $self->dirty;	2240	return unless $self->dirty;
1628		2241
…		…
1634	return if $self->{deny_save};	2247	return if $self->{deny_save};
1635		2248
1636	local $self->{last_access} = $self->last_access;#d#	2249	local $self->{last_access} = $self->last_access;#d#
1637		2250
1638	cf::async {	2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2253	$_->contr->save for $self->players;
1640	};	2254	};
		2255
		2256	cf::get_slot 0.02;
1641		2257
1642	if ($uniq) {	2258	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2261	} else {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1647	}	2263	}
1648	}	2264	}
1649		2265
		2266	sub save {
		2267	my ($self) = @_;
		2268
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	$self->_save;
		2272	}
		2273
1650	sub swap_out {	2274	sub swap_out {
1651	my ($self) = @_;	2275	my ($self) = @_;
1652		2276
1653	# save first because save cedes
1654	$self->save;
1655
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1658	return if $self->players;	2281	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1660	return if $self->{deny_save};
1661		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
		2289	$self->_save;
		2290
		2291	# then free the map
1662	$self->clear;	2292	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2293	}
1665		2294
1666	sub reset_at {	2295	sub reset_at {
1667	my ($self) = @_;	2296	my ($self) = @_;
1668		2297
1669	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1672		2300
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2303
…		…
1686	my ($self) = @_;	2314	my ($self) = @_;
1687		2315
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2317
1690	return if $self->players;	2318	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2319
1693	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
1694		2321
1695	$self->in_memory (cf::MAP_SWAPPED);	2322	$self->in_memory (cf::MAP_SWAPPED);
1696		2323
1697	# need to save uniques path	2324	# need to save uniques path
1698	unless ($self->{deny_save}) {	2325	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2329	if $uniq;
1703	}	2330	}
1704		2331
1705	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1706		2333
		2334	$self->deactivate;
		2335	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2336	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2337
1711	$self->unlink_save;	2338	$self->unlink_save;
1712	$self->destroy;	2339	$self->destroy;
1713	}	2340	}
1714		2341
1715	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1716		2343
1717	sub nuke {	2344	sub nuke {
1718	my ($self) = @_;	2345	my ($self) = @_;
1719		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
1720	delete $cf::MAP{$self->path};	2350	delete $cf::MAP{$self->path};
1721		2351
1722	$self->unlink_save;	2352	$self->unlink_save;
1723		2353
1724	bless $self, "cf::map";	2354	bless $self, "cf::map::wrap";
1725	delete $self->{deny_reset};	2355	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2359
1730	$cf::MAP{$self->path} = $self;	2360	$cf::MAP{$self->path} = $self;
		2361	}
1731		2362
1732	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
		2364	}
		2365
		2366	=item $maps = cf::map::tmp_maps
		2367
		2368	Returns an arrayref with all map paths of currently instantiated and saved
		2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
		2374	[
		2375	map {
		2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item $maps = cf::map::random_maps
		2385
		2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
		2388
		2389	=cut
		2390
		2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
1733	}	2400	}
1734		2401
1735	=item cf::map::unique_maps	2402	=item cf::map::unique_maps
1736		2403
1737	Returns an arrayref of paths of all shared maps that have	2404	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2405	instantiated unique items. May block.
1739		2406
1740	=cut	2407	=cut
1741		2408
1742	sub unique_maps() {	2409	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2410	[
1744	or return;	2411	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2412	utf8::decode $_;
1750	next if /\.pst$/;	2413	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2415	? ()
1753	push @paths, cf::map::normalise $_;	2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2418	]
1755
1756	\@paths
1757	}	2419	}
1758		2420
1759	package cf;	2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
		2442	s/\.map$// or next;
		2443	utf8::decode $_;
		2444	push @maps, "$dir/$_";
		2445	}
		2446
		2447	push @dirs, map "$dir/$_", @$dirs;
		2448	}
		2449
		2450	\@maps
		2451	}
1760		2452
1761	=back	2453	=back
1762		2454
1763	=head3 cf::object	2455	=head3 cf::object
1764		2456
…		…
1768		2460
1769	=over 4	2461	=over 4
1770		2462
1771	=item $ob->inv_recursive	2463	=item $ob->inv_recursive
1772		2464
1773	Returns the inventory of the object _and_ their inventories, recursively.	2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
1774		2467
1775	=cut	2468	=cut
1776		2469
1777	sub inv_recursive_;	2470	sub inv_recursive_;
1778	sub inv_recursive_ {	2471	sub inv_recursive_ {
…		…
1781		2474
1782	sub inv_recursive {	2475	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2476	inv_recursive_ inv $_[0]
1784	}	2477	}
1785		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
		2505	}
		2506
1786	package cf;	2507	package cf;
1787		2508
1788	=back	2509	=back
1789		2510
1790	=head3 cf::object::player	2511	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1799		2520
1800	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1801		2536
1802	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2538	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1807		2542
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2544
1810	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1812	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1815	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1816	}	2570	}
1817		2571
1818	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1819		2573
1820	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1833		2587
1834	=item $player_object->enter_link	2588	=item $player_object->enter_link
1835		2589
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2591
1838	The player should be reasonably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
1840		2596
1841	Will never block.	2597	Will never block.
1842		2598
1843	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1844		2600
…		…
1862	}	2618	}
1863		2619
1864	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2621	my ($self) = @_;
1866		2622
		2623	$self->deactivate_recursive;
		2624
		2625	++$self->{_link_recursion};
		2626
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2628
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1871		2631
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1873	}	2633	}
1874		2634
1875	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1877		2639
1878	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1879		2641
1880	unless ($map) {	2642	unless ($map) {
1881	# restore original map position	2643	# restore original map position
…		…
1892	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1893	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1894		2656
1895	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1898		2660
1899	$map->load;	2661	$map->load;
1900	$map->load_diag;	2662	$map->load_neighbours;
1901		2663
1902	return unless $self->contr->active;	2664	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2665
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2667	if ($self->enter_map ($map, $x, $y)) {
1907	}	2668	# entering was successful
1908		2669	delete $self->{_link_recursion};
1909	cf::player->attach (	2670	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2671	$self->activate_recursive;
1911	my ($pl) = @_;
1912
1913	# abort map switching before logout
1914	if ($pl->ob->{_link_pos}) {
1915	cf::sync_job {
1916	$pl->ob->leave_link
1917	};
1918	}
1919	},	2672	}
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2673
1923	# try to abort aborted map switching on player login :)	2674	}
1924	# should happen only on crashes
1925	if ($pl->ob->{_link_pos}) {
1926	$pl->ob->enter_link;
1927	(async {
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940		2675
1941	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1942		2677
		2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
1943	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1944		2690
1945	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1946	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1947		2702
1948	$self->enter_link;	2703	$self->enter_link;
1949		2704
1950	(async {	2705	(async {
		2706	$Coro::current->{desc} = "player::goto $path $x $y";
		2707
		2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
1951	my $map = eval {	2727	my $map = eval {
1952	my $map = cf::map::find $path;	2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1953	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
		2733	} else {
		2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
		2736
1954	$map	2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
1955	} or	2743	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1959	})->prio (1);	2751	})->prio (1);
1960	}	2752	}
1961		2753
1962	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1963		2755
…		…
1983	}	2775	}
1984		2776
1985	sub prepare_random_map {	2777	sub prepare_random_map {
1986	my ($exit) = @_;	2778	my ($exit) = @_;
1987		2779
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2780	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2781	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2782	# that depends on the exit object
1993		2783
1994	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	2786	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	2787	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
2001	}	2793	}
2002		2794
2003	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
2004		2796
2005	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	2799	my $meta = "$RANDOMDIR/$md5.meta";
2008		2800
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	2803	undef $fh;
2012	aio_rename "$meta~", $meta;	2804	aio_rename "$meta~", $meta;
2013		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
2016	}	2812	}
2017	}	2813	}
2018		2814
2019	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
2021		2817
2022	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
2023		2819
2024	if ($exit->slaying eq "/!") {
2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
2026	# the problem is that $exit might not survive long enough
2027	# so it needs to be done right now, right here
2028	cf::sync_job { prepare_random_map $exit };
2029	}
2030
2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2032	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;
2034
2035	$self->enter_link;	2820	$self->enter_link;
2036		2821
2037	(async {	2822	(async {
2038	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
2039	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
		2832	prepare_random_map $exit
		2833	if $exit->slaying eq "/!";
		2834	}
		2835
		2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
		2839
2040	$self->goto ($slaying, $hp, $sp);	2840	$self->goto ($map, $x, $y);
2041		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
2042	1;	2846	1
2043	}) {	2847	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
2046	. "Please report this to the dungeon master!",	2850	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
2048		2852
2049	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
…		…
2068		2872
2069	utf8::encode $text;	2873	utf8::encode $text;
2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2071	}	2875	}
2072		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
2073	=item $client->ext_event ($type, %msg)	3064	=item $client->ext_msg ($type, @msg)
2074		3065
2075	Sends an exti event to the client.	3066	Sends an ext event to the client.
2076		3067
2077	=cut	3068	=cut
2078		3069
2079	sub cf::client::ext_event($$%) {	3070	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	3071	my ($self, $type, @msg) = @_;
2081		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	3076	push @msg, msgtype => "event_$type";
2083	$self->send_packet ("ext " . cf::to_json \%msg);	3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
2084	}	3097	}
2085		3098
2086	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
2087		3100
2088	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2090	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2091		3104
2092	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
2093	reliable at some point in the future.	3106	become reliable at some point in the future.
2094		3107
2095	=cut	3108	=cut
2096		3109
2097	sub cf::client::query {	3110	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	3119	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		3121
2109	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
2111	}	3126	}
2112		3127
2113	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
2114	on_reply => sub {	3134	on_reply => sub {
2115	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
2116		3136
2117	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
2118	# get handled first	3138	# get handled first
…		…
2130	} else {	3150	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	3152	}
2133	}	3153	}
2134	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
2135	);	3181	);
2136		3182
2137	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
2138		3184
2139	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
2155		3201
2156	$coro	3202	$coro
2157	}	3203	}
2158		3204
2159	cf::client->attach (	3205	cf::client->attach (
2160	on_destroy => sub {	3206	on_client_destroy => sub {
2161	my ($ns) = @_;	3207	my ($ns) = @_;
2162		3208
2163	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2164	},	3210	},
2165	);	3211	);
…		…
2180	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
2182		3228
2183	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
2184		3230
2185	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
2186		3236
2187	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
2188		3238
2189	=pod	3239	=pod
2190		3240
2191	The following functions and methods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
2192		3242
2193	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
2194	cf::object::player player	3248	cf::object::player
2195	cf::player peaceful	3249	player
2196	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
2197		3256
2198	=cut	3257	=cut
2199		3258
2200	for (	3259	for (
2201	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
2202	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
2205	) {	3266	) {
2206	no strict 'refs';	3267	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2226		3287
2227	my $qcode = $code;	3288	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
2230		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
2231	local $_;	3295	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;
2233		3296
2234	my $eval =	3297	my $eval =
2235	"do {\n"	3298	"do {\n"
2236	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2237	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
2238	. $code	3301	. $code
2239	. "\n}"	3302	. "\n}"
2240	;	3303	;
2241		3304
		3305	if ($CFG{safe_eval}) {
2242	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
2243	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2244	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
2245		3314
2246	if ($@) {	3315	if ($@) {
2247	warn "$@";	3316	warn "$@";
2248	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
2249	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2268	=cut	3337	=cut
2269		3338
2270	sub register_script_function {	3339	sub register_script_function {
2271	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
2272		3341
2273	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
2274	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
2275	}	3344	}
2276		3345
2277	=back	3346	=back
2278		3347
2279	=cut	3348	=cut
2280
2281	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453		3349
2454	#############################################################################	3350	#############################################################################
2455	# the server's init and main functions	3351	# the server's init and main functions
2456		3352
2457	sub load_facedata($) {	3353	sub load_facedata($) {
2458	my ($path) = @_;	3354	my ($path) = @_;
		3355
		3356	# HACK to clear player env face cache, we need some signal framework
		3357	# for this (global event?)
		3358	%ext::player_env::MUSIC_FACE_CACHE = ();
		3359
		3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2459		3361
2460	warn "loading facedata from $path\n";	3362	warn "loading facedata from $path\n";
2461		3363
2462	my $facedata;	3364	my $facedata;
2463	0 < aio_load $path, $facedata	3365	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	3368	$facedata = Coro::Storable::thaw $facedata;
2467		3369
2468	$facedata->{version} == 2	3370	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		3372
		3373	# patch in the exptable
		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3375	$facedata->{resource}{"res/exp_table"} = {
		3376	type => FT_RSRC,
		3377	data => $exp_table,
		3378	hash => (Digest::MD5::md5 $exp_table),
		3379	};
		3380	cf::cede_to_tick;
		3381
2471	{	3382	{
2472	my $faces = $facedata->{faceinfo};	3383	my $faces = $facedata->{faceinfo};
2473		3384
2474	while (my ($face, $info) = each %$faces) {	3385	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3387
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3388	cf::face::set_visibility $idx, $info->{visibility};
		3389	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2479	Coro::cede;	3392
		3393	cf::cede_to_tick;
2480	}	3394	}
2481		3395
2482	while (my ($face, $info) = each %$faces) {	3396	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3397	next unless $info->{smooth};
		3398
2484	my $idx = cf::face::find $face	3399	my $idx = cf::face::find $face
2485	or next;	3400	or next;
		3401
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3405	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3407	}
2491	Coro::cede;	3408
		3409	cf::cede_to_tick;
2492	}	3410	}
2493	}	3411	}
2494		3412
2495	{	3413	{
2496	my $anims = $facedata->{animinfo};	3414	my $anims = $facedata->{animinfo};
2497		3415
2498	while (my ($anim, $info) = each %$anims) {	3416	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	3418	cf::cede_to_tick;
2501	}	3419	}
2502		3420
2503	cf::anim::invalidate_all; # d'oh	3421	cf::anim::invalidate_all; # d'oh
2504	}	3422	}
2505		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
2506	1	3443	1
2507	}	3444	}
2508		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
2509	sub reload_regions {	3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
2510	load_resource_file "$MAPDIR/regions"	3489	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
2512	}	3496	}
2513		3497
2514	sub reload_facedata {	3498	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3499	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	3500	or die "unable to load facedata\n";
…		…
2527	}	3511	}
2528		3512
2529	sub reload_resources {	3513	sub reload_resources {
2530	warn "reloading resource files...\n";	3514	warn "reloading resource files...\n";
2531		3515
2532	reload_regions;
2533	reload_facedata;	3516	reload_facedata;
2534	reload_archetypes;	3517	reload_archetypes;
		3518	reload_regions;
2535	reload_treasures;	3519	reload_treasures;
2536		3520
2537	warn "finished reloading resource files\n";	3521	warn "finished reloading resource files\n";
2538	}	3522	}
2539		3523
2540	sub init {	3524	sub reload_config {
2541	reload_resources;	3525	warn "reloading config file...\n";
2542	}
2543		3526
2544	sub cfg_load {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3528	or return;
2547		3529
2548	local $/;	3530	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2550		3532
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2552		3534
2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2555		3537
2556	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2559	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2560	};	3542	};
2561	warn $@ if $@;	3543	warn $@ if $@;
2562	}	3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
2563	}	3575	}
2564		3576
2565	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
2566	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2569	(async {	3590	(async {
2570	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
2571	})->prio (Coro::PRIO_MAX);	3593	})->prio (Coro::PRIO_MAX);
2572	};	3594	};
2573		3595
2574	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
		3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
2575	db_init;	3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2576	load_extensions;	3619	load_extensions;
2577		3620
2578	$TICK_WATCHER->start;	3621	utime time, time, $RUNTIMEFILE;
2579	Event::loop;	3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
2580	}	3634	}
2581		3635
2582	#############################################################################	3636	#############################################################################
2583	# initialisation and cleanup	3637	# initialisation and cleanup
2584		3638
2585	# install some emergency cleanup handlers	3639	# install some emergency cleanup handlers
2586	BEGIN {	3640	BEGIN {
		3641	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	3642	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2589	reentrant => 0,
2590	data => WF_AUTOCANCEL,
2591	signal => $signal,
2592	prio => 0,
2593	cb => sub {
2594	cf::cleanup "SIG$signal";	3644	cf::cleanup "SIG$signal";
2595	},
2596	);	3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
2597	}	3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
2598	}	3735	}
2599		3736
2600	sub emergency_save() {	3737	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3738	my $freeze_guard = cf::freeze_mainloop;
2602		3739
2603	warn "enter emergency perl save\n";	3740	warn "emergency_perl_save: enter\n";
2604		3741
2605	cf::sync_job {	3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
2606	# use a peculiar iteration method to avoid tripping on perl	3748	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	3749	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	3750	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	3751	warn "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	3752	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	3753	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	3756	$pl->save;
2614	}	3757	}
2615	warn "end emergency player save\n";	3758	warn "emergency_perl_save: end player save\n";
2616		3759
2617	warn "begin emergency map save\n";	3760	warn "emergency_perl_save: begin map save\n";
2618	for my $path (keys %cf::MAP) {	3761	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	3762	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	3763	$map->valid or next;
2621	$map->save;	3764	$map->save;
2622	}	3765	}
2623	warn "end emergency map save\n";	3766	warn "emergency_perl_save: end map save\n";
2624		3767
2625	warn "begin emergency database checkpoint\n";	3768	warn "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	3769	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
2628	};	3775	};
2629		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
2630	warn "leave emergency perl save\n";	3782	warn "emergency_perl_save: leave\n";
2631	}	3783	}
2632		3784
2633	sub post_cleanup {	3785	sub post_cleanup {
2634	my ($make_core) = @_;	3786	my ($make_core) = @_;
2635		3787
2636	warn Carp::longmess "post_cleanup backtrace"	3788	warn Carp::longmess "post_cleanup backtrace"
2637	if $make_core;	3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
2638	}	3818	}
2639		3819
2640	sub do_reload_perl() {	3820	sub do_reload_perl() {
2641	# can/must only be called in main	3821	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2643	warn "can only reload from main coroutine";	3823	warn "can only reload from main coroutine";
2644	return;	3824	return;
2645	}	3825	}
2646		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2647	warn "reloading...";	3832	warn "reloading...";
2648		3833
2649	warn "entering sync_job";	3834	warn "entering sync_job";
2650		3835
2651	cf::sync_job {	3836	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark	3837	cf::write_runtime_sync; # external watchdog should not bark
2653	cf::emergency_save;	3838	cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark	3839	cf::write_runtime_sync; # external watchdog should not bark
2655		3840
2656	warn "syncing database to disk";	3841	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3842	BDB::db_env_txn_checkpoint $DB_ENV;
2658		3843
2659	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2660		3845
2661	warn "cancelling all WF_AUTOCANCEL watchers";
2662	for (Event::all_watchers) {
2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2664	}
2665
2666	warn "flushing outstanding aio requests";	3846	warn "flushing outstanding aio requests";
2667	for (;;) {
2668	BDB::flush;
2669	IO::AIO::flush;
2670	Coro::cede;
2671	last unless IO::AIO::nreqs || BDB::nreqs;	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2672	warn "iterate...";	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2673	}
2674
2675	++$RELOAD;
2676
2677	warn "cancelling all extension coros";
2678	$_->cancel for values %EXT_CORO;
2679	%EXT_CORO = ();
2680
2681	warn "removing commands";
2682	%COMMAND = ();
2683
2684	warn "removing ext commands";
2685	%EXTCMD = ();
2686
2687	warn "unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";
2690
2691	if (my $cb = $pkg->can ("unload")) {
2692	eval {
2693	$cb->($pkg);
2694	1
2695	} or warn "$pkg unloaded, but with errors: $@";
2696	}	3849	}
2697		3850
2698	warn "... nuking $pkg";	3851	warn "cancelling all extension coros";
2699	Symbol::delete_package $pkg;	3852	$_->cancel for values %EXT_CORO;
2700	}	3853	%EXT_CORO = ();
2701		3854
2702	warn "unloading all perl modules loaded from $LIBDIR";	3855	warn "removing commands";
2703	while (my ($k, $v) = each %INC) {	3856	%COMMAND = ();
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
2706	warn "... unloading $k";	3864	warn "... unloading $pkg";
2707	delete $INC{$k};
2708		3865
2709	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;
2711
2712	if (my $cb = $k->can ("unload_module")) {	3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
2713	$cb->();	3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2714	}	3875	}
2715		3876
2716	Symbol::delete_package $k;	3877	warn "unloading all perl modules loaded from $LIBDIR";
		3878	while (my ($k, $v) = each %INC) {
		3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
2717	}	3892	}
2718		3893
2719	warn "getting rid of safe::, as good as possible";	3894	warn "getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2722		3897
2723	warn "unloading cf.pm \"a bit\"";	3898	warn "unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		3901
2727	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2728	# and global variables created in xs	3903	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2730		3905
2731	warn "unload completed, starting to reload now";	3906	warn "unload completed, starting to reload now";
2732		3907
2733	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2734	require cf;	3909	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2736		3911
2737	warn "loading config and database again";	3912	warn "loading config and database again";
2738	cf::cfg_load;	3913	cf::reload_config;
2739		3914
2740	warn "loading extensions";	3915	warn "loading extensions";
2741	cf::load_extensions;	3916	cf::load_extensions;
2742		3917
		3918	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	3919	warn "reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	3920	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	3921	warn "reattaching attachments to maps";
2746	reattach $_ for values %MAP;	3922	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	3923	warn "reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	3924	reattach $_ for values %PLAYER;
		3925	}
2749		3926
		3927	warn "running post_init jobs";
		3928	(pop @POST_INIT)->(1) while @POST_INIT;
		3929
2750	warn "leaving sync_job";	3930	warn "leaving sync_job";
2751		3931
2752	1	3932	1
2753	} or do {	3933	} or do {
2754	warn $@;	3934	warn $@;
2755	warn "error while reloading, exiting.";	3935	cf::cleanup "error while reloading, exiting.";
2756	exit 1;
2757	};	3936	};
2758		3937
2759	warn "reloaded";	3938	warn "reloaded";
		3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
2760	};	3944	};
2761		3945
2762	our $RELOAD_WATCHER; # used only during reload	3946	our $RELOAD_WATCHER; # used only during reload
2763		3947
2764	sub reload_perl() {	3948	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	3949	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	3950	# coro crashes during coro_state_free->destroy here.
2767		3951
2768	$RELOAD_WATCHER ||= Event->timer (	3952	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	3953	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	3954
2771	data => WF_AUTOCANCEL,	3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	3956	do_reload_perl;
2774	undef $RELOAD_WATCHER;	3957	undef $RELOAD_WATCHER;
2775	},	3958	};
2776	);	3959	};
2777	}	3960	}
2778		3961
2779	register_command "reload" => sub {	3962	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2781		3964
2782	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	3966	$who->message ("reloading server.");
		3967	async {
		3968	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	3969	reload_perl;
		3970	};
2785	}	3971	}
2786	};	3972	};
2787		3973
2788	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2789		3975
…		…
2791		3977
2792	our @WAIT_FOR_TICK;	3978	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;	3979	our @WAIT_FOR_TICK_BEGIN;
2794		3980
2795	sub wait_for_tick {	3981	sub wait_for_tick {
2796	return unless $TICK_WATCHER->is_active;
2797	return if $Coro::current == $Coro::main;	3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2798		3983
2799	my $signal = new Coro::Signal;	3984	my $signal = new Coro::Signal;
2800	push @WAIT_FOR_TICK, $signal;	3985	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;	3986	$signal->wait;
2802	}	3987	}
2803		3988
2804	sub wait_for_tick_begin {	3989	sub wait_for_tick_begin {
2805	return unless $TICK_WATCHER->is_active;
2806	return if $Coro::current == $Coro::main;	3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2807		3991
2808	my $signal = new Coro::Signal;	3992	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3993	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3994	$signal->wait;
2811	}	3995	}
2812		3996
2813	$TICK_WATCHER = Event->timer (	3997	sub tick {
2814	reentrant => 0,
2815	parked => 1,
2816	prio => 0,
2817	at => $NEXT_TICK || $TICK,
2818	data => WF_AUTOCANCEL,
2819	cb => sub {
2820	if ($Coro::current != $Coro::main) {	3998	if ($Coro::current != $Coro::main) {
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	4000	unless ++$bug_warning > 10;
2823	return;	4001	return;
2824	}	4002	}
2825		4003
2826	$NOW = Event::time;
2827
2828	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2829		4005
2830	$RUNTIME += $TICK;	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2831	$NEXT_TICK += $TICK;
2832		4007
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	4010	Coro::async_pool {
		4011	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	4012	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2838	};
2839	}	4014	};
		4015	}
2840		4016
2841	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#
2843
2844	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2846
2847	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;
2849
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	4018	$sig->send;
2852	}	4019	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {	4020	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;	4021	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	4022	}
2859	);	4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
2860		4035
2861	{	4036	{
2862	BDB::max_poll_time $TICK * 0.1;	4037	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	4038
2864	reentrant => 0,
2865	fd => BDB::poll_fileno,
2866	poll => 'r',
2867	prio => 0,
2868	data => WF_AUTOCANCEL,
2869	cb => \&BDB::poll_cb,
2870	);
2871	BDB::min_parallel 8;	4039	BDB::min_parallel 16;
2872		4040	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	4041	$AnyEvent::BDB::WATCHER->priority (1);
2874	my $status;
2875	my $current = $Coro::current;
2876	(
2877	sub {
2878	$status = $!;
2879	$current->ready; undef $current;
2880	},
2881	sub {
2882	Coro::schedule while defined $current;
2883	$! = $status;
2884	},
2885	)
2886	};
2887		4042
2888	unless ($DB_ENV) {	4043	unless ($DB_ENV) {
2889	$DB_ENV = BDB::db_env_create;	4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2890		4050
2891	cf::sync_job {	4051	cf::sync_job {
2892	eval {	4052	eval {
2893	BDB::db_env_open	4053	BDB::db_env_open
2894	$DB_ENV,	4054	$DB_ENV,
…		…
2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	4058	0666;
2899		4059
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2901
2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2903	$DB_ENV->set_lk_detect;
2904	};	4061	};
2905		4062
2906	cf::cleanup "db_env_open(db): $@" if $@;	4063	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	4064	};
2908	}	4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
2909	}	4076	}
2910		4077
2911	{	4078	{
		4079	# configure IO::AIO
		4080
2912	IO::AIO::min_parallel 8;	4081	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	4082	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	4083	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	4084	}
2918	data => WF_AUTOCANCEL,	4085
2919	fd => IO::AIO::poll_fileno,	4086	my $_log_backtrace;
2920	poll => 'r',	4087
2921	prio => 6,	4088	sub _log_backtrace {
2922	cb => \&IO::AIO::poll_cb,	4089	my ($msg, @addr) = @_;
2923	);	4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
2924	}	4126	}
2925		4127
2926	# load additional modules	4128	# load additional modules
2927	use cf::pod;	4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
2928		4131
2929	END { cf::emergency_save }	4132	END { cf::emergency_save }
2930		4133
2931	1	4134	1
2932		4135

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