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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC vs.
Revision 1.529 by root, Wed Apr 28 11:28:22 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use 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 = 1;
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;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1072		1642
1073	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1680	or return [];
1111		1681
1112	my @logins;	1682	my @logins;
1113		1683
1114	for my $login (@$dirs) {	1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1118		1694
1119	utf8::decode $login;	1695	utf8::decode $login;
1120	push @logins, $login;	1696	push @logins, $login;
1121	}	1697	}
1122		1698
1123	\@logins	1699	\@logins
1124	}	1700	}
1125		1701
1126	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1127		1705
1128	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1129	player. May block.	1707	player. May block.
1130		1708
1131	=cut	1709	=cut
…		…
1149	}	1727	}
1150		1728
1151	\@paths	1729	\@paths
1152	}	1730	}
1153		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1154	=item $player->ext_reply ($msgid, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1155		1737
1156	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1157		1739
1158	=cut	1740	=cut
1159		1741
1160	sub ext_reply($$%) {	1742	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1162		1744
1163	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1746	}
1167		1747
1168	=item $player->ext_event ($type, %msg)	1748	=item $player->ext_msg ($type, @msg)
1169		1749
1170	Sends an ext event to the client.	1750	Sends an ext event to the client.
1171		1751
1172	=cut	1752	=cut
1173		1753
1174	sub ext_event($$%) {	1754	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1755	my ($self, $type, @msg) = @_;
1176		1756
1177	$self->ns->ext_event ($type, %msg);	1757	$self->ns->ext_msg ($type, @msg);
1178	}	1758	}
1179		1759
1180	=head3 cf::region	1760	=head3 cf::region
1181		1761
1182	=over 4	1762	=over 4
…		…
1185		1765
1186	package cf::region;	1766	package cf::region;
1187		1767
1188	=item cf::region::find_by_path $path	1768	=item cf::region::find_by_path $path
1189		1769
1190	Tries to decuce the probable region for a map knowing only its path.	1770	Tries to decuce the likely region for a map knowing only its path.
1191		1771
1192	=cut	1772	=cut
1193		1773
1194	sub find_by_path($) {	1774	sub find_by_path($) {
1195	my ($path) = @_;	1775	my ($path) = @_;
1196		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
1197	my ($match, $specificity);	1779	my ($match, $specificity);
1198		1780
1199	for my $region (list) {	1781	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1782	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1783	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1784	if $region->specificity > $specificity;
1203	}	1785	}
1204	}	1786	}
1205		1787
…		…
1226	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1228		1810
1229	sub generate_random_map {	1811	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1815
1231	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1817	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1261		1846
1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1263	}	1848	}
1264		1849
1265	# also paths starting with '/'	1850	# also paths starting with '/'
1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1267		1852
1268	sub thawer_merge {	1853	sub thawer_merge {
1269	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1270		1855
1271	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1272	local $self->{path};	1857	local $self->{path};
1273	local $self->{load_path};	1858	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1859
1277	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1278	}	1861	}
1279		1862
1280	sub normalise {	1863	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1328	return $self;	1911	return $self;
1329	}	1912	}
1330	}	1913	}
1331		1914
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1916	()
1334	}	1917	}
1335		1918
1336	sub init {	1919	sub init {
1337	my ($self) = @_;	1920	my ($self) = @_;
…		…
1359		1942
1360	# the temporary/swap location	1943	# the temporary/swap location
1361	sub save_path {	1944	sub save_path {
1362	my ($self) = @_;	1945	my ($self) = @_;
1363		1946
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1948	"$TMPDIR/$path.map"
1366	}	1949	}
1367		1950
1368	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1369	sub uniq_path {	1952	sub uniq_path {
1370	my ($self) = @_;	1953	my ($self) = @_;
1371		1954
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1956	"$UNIQUEDIR/$path"
1374	}	1957	}
1375		1958
1376	# and all this just because we cannot iterate over	1959	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1960	my ($self) = @_;
1380		1961
1381	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1383	}	1965	}
1384		1966
1385	sub unlink_save {	1967	sub unlink_save {
1386	my ($self) = @_;	1968	my ($self) = @_;
1387		1969
…		…
1392		1974
1393	sub load_header_from($) {	1975	sub load_header_from($) {
1394	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1395		1977
1396	utf8::encode $path;	1978	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1980	or return;
		1981
		1982	$self->_load_header ($f)
		1983	or return;
		1984
		1985	local $MAP_LOADING{$self->{path}} = $self;
		1986	$f->resolve_delayed_derefs;
1402		1987
1403	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1404		1989
1405	1	1990	1
1406	}	1991	}
…		…
1445	$self->load_header_orig	2030	$self->load_header_orig
1446	or return;	2031	or return;
1447	$self->prepare_orig;	2032	$self->prepare_orig;
1448	}	2033	}
1449		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
1450	$self->default_region (cf::region::find_by_path $self->{path})	2038	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	2039	unless $self->default_region;
1452		2040
1453	1	2041	1
1454	}	2042	}
…		…
1457	sub find {	2045	sub find {
1458	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1459		2047
1460	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1461		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2052
1464	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1467	or return;	2055	or return;
1468		2056
1469	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1470		2058
1471	$map->load_header	2059	$map->load_header
1472	or return;	2060	or return;
1473		2061
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1477	$map->reset;	2067	$map->reset;
1478	undef $guard;
1479	return find $path;	2068	return find $path;
1480	}	2069	}
1481		2070
1482	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1483	}	2072	}
1484	}	2073	}
1485		2074
1486	sub pre_load { }	2075	sub pre_load { }
1487	sub post_load { }	2076	#sub post_load { } # XS
1488		2077
1489	sub load {	2078	sub load {
1490	my ($self) = @_;	2079	my ($self) = @_;
1491		2080
1492	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1493		2082
1494	my $path = $self->{path};	2083	my $path = $self->{path};
1495		2084
1496	{	2085	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1498		2087
		2088	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2090
1501	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1502		2092
1503	$self->alloc;	2093	$self->alloc;
1504		2094
1505	$self->pre_load;	2095	$self->pre_load;
1506	Coro::cede;	2096	cf::cede_to_tick;
1507		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2100	$self->_load_objects ($f)
1509	or return;	2101	or return;
1510		2102
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1512	if delete $self->{load_original};	2104	if delete $self->{load_original};
1513		2105
1514	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2107	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2110	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1519	}	2114	}
1520	}	2115	}
1521		2116
1522	Coro::cede;	2117	$f->resolve_delayed_derefs;
		2118
		2119	cf::cede_to_tick;
1523	# now do the right thing for maps	2120	# now do the right thing for maps
1524	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2123	unless $self->difficulty;
1527	Coro::cede;	2124	cf::cede_to_tick;
1528		2125
1529	unless ($self->{deny_activate}) {	2126	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2127	$self->decay_objects;
1531	$self->fix_auto_apply;	2128	$self->fix_auto_apply;
1532	$self->update_buttons;	2129	$self->update_buttons;
1533	Coro::cede;	2130	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2131	$self->activate;
1537	}	2132	}
1538		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
1540
1541	undef $guard;
1542	}	2138	}
1543		2139
1544	$self->post_load;	2140	$self->post_load;
1545	}	2141	}
1546		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1547	sub customise_for {	2146	sub customise_for {
1548	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1549		2148
1550	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1551	if $self->per_player;	2150	if $self->per_player;
1552		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1553	$self	2155	$self
1554	}	2156	}
1555		2157
1556	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1557	sub load_diag {	2159	sub load_neighbours {
1558	my ($map) = @_;	2160	my ($map) = @_;
1559		2161
1560	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1561		2163
1562	for (0 .. 3) {	2164	for (0 .. 3) {
1563	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1564	or next;	2166	or next;
1565	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1566	or next;	2168	or next;
1567	$neigh->load;	2169	$neigh->load;
1568		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1571	}	2175	}
1572		2176
1573	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1574	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1575	or next;	2180	or next;
1576	$neigh->load;	2181	$neigh->load;
1577	}	2182	}
1578	}	2183	}
1579		2184
…		…
1584	}	2189	}
1585		2190
1586	sub do_load_sync {	2191	sub do_load_sync {
1587	my ($map) = @_;	2192	my ($map) = @_;
1588		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1589	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1590	}	2198	}
1591		2199
1592	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1593	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1594		2202
1595	sub find_async {	2203	sub find_async {
1596	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1597		2205
1598	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1599		2207
1600	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1602	}	2210	}
1603		2211
1604	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1605	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1606	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1607	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1608	my $map = find $path	2219	if (my $map = find $k) {
1609	or next;
1610	$map->load;	2220	$map->load if $v;
		2221	}
1611		2222
1612	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1613	}	2224	}
1614	}	2225	}
1615	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1616	};	2227	};
1617	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1618		2229
1619	()	2230	()
1620	}	2231	}
1621		2232
		2233	# common code, used by both ->save and ->swapout
1622	sub save {	2234	sub _save {
1623	my ($self) = @_;	2235	my ($self) = @_;
1624
1625	my $lock = cf::lock_acquire "map_data:" . $self->path;
1626		2236
1627	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1628		2238
1629	return unless $self->dirty;	2239	return unless $self->dirty;
1630		2240
…		…
1636	return if $self->{deny_save};	2246	return if $self->{deny_save};
1637		2247
1638	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1639		2249
1640	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1641	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1642	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1643		2256
1644	if ($uniq) {	2257	if ($uniq) {
1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1646	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1647	} else {	2260	} else {
1648	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1649	}	2262	}
1650	}	2263	}
1651		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1652	sub swap_out {	2273	sub swap_out {
1653	my ($self) = @_;	2274	my ($self) = @_;
1654		2275
1655	# save first because save cedes
1656	$self->save;
1657
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1660	return if $self->players;	2280	return if $self->players;
1661	return if $self->in_memory != cf::MAP_IN_MEMORY;
1662	return if $self->{deny_save};
1663		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1664	$self->clear;	2291	$self->clear;
1665	$self->in_memory (cf::MAP_SWAPPED);
1666	}	2292	}
1667		2293
1668	sub reset_at {	2294	sub reset_at {
1669	my ($self) = @_;	2295	my ($self) = @_;
1670		2296
1671	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1673	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1674		2299
1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1676	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1677		2302
…		…
1688	my ($self) = @_;	2313	my ($self) = @_;
1689		2314
1690	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1691		2316
1692	return if $self->players;	2317	return if $self->players;
1693	return if $self->isa ("ext::map_per_player");#d#
1694		2318
1695	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
1696		2320
1697	$self->in_memory (cf::MAP_SWAPPED);	2321	$self->in_memory (cf::MAP_SWAPPED);
1698		2322
1699	# need to save uniques path	2323	# need to save uniques path
1700	unless ($self->{deny_save}) {	2324	unless ($self->{deny_save}) {
…		…
1704	if $uniq;	2328	if $uniq;
1705	}	2329	}
1706		2330
1707	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1708		2332
		2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1709	$self->clear;	2335	$self->clear;
1710
1711	$_->clear_links_to ($self) for values %cf::MAP;
1712		2336
1713	$self->unlink_save;	2337	$self->unlink_save;
1714	$self->destroy;	2338	$self->destroy;
1715	}	2339	}
1716		2340
1717	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1718		2342
1719	sub nuke {	2343	sub nuke {
1720	my ($self) = @_;	2344	my ($self) = @_;
1721		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1722	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1723		2350
1724	$self->unlink_save;	2351	$self->unlink_save;
1725		2352
1726	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1727	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1728	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1729	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1731		2358
1732	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1733		2361
1734	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
		2363	}
		2364
		2365	=item $maps = cf::map::tmp_maps
		2366
		2367	Returns an arrayref with all map paths of currently instantiated and saved
		2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
		2381	}
		2382
		2383	=item $maps = cf::map::random_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
		2387
		2388	=cut
		2389
		2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
1735	}	2399	}
1736		2400
1737	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1738		2402
1739	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1740	instantiated unique items. May block.	2404	instantiated unique items. May block.
1741		2405
1742	=cut	2406	=cut
1743		2407
1744	sub unique_maps() {	2408	sub unique_maps() {
1745	my $files = aio_readdir $UNIQUEDIR	2409	[
1746	or return;	2410	map {
1747
1748	my @paths;
1749
1750	for (@$files) {
1751	utf8::decode $_;	2411	utf8::decode $_;
1752	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1753	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1754		2414	? ()
1755	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1756	}	2417	]
1757
1758	\@paths
1759	}	2418	}
1760		2419
1761	package cf;	2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
		2447	}
		2448
		2449	\@maps
		2450	}
1762		2451
1763	=back	2452	=back
1764		2453
1765	=head3 cf::object	2454	=head3 cf::object
1766		2455
…		…
1770		2459
1771	=over 4	2460	=over 4
1772		2461
1773	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1774		2463
1775	Returns the inventory of the object _and_ their inventories, recursively.	2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
1776		2466
1777	=cut	2467	=cut
1778		2468
1779	sub inv_recursive_;	2469	sub inv_recursive_;
1780	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1783		2473
1784	sub inv_recursive {	2474	sub inv_recursive {
1785	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1786	}	2476	}
1787		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
		2504	}
		2505
1788	package cf;	2506	package cf;
1789		2507
1790	=back	2508	=back
1791		2509
1792	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1798	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1799	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1800	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1801		2519
1802	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1803		2535
1804	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1805	# with dialog boxes.	2537	# with dialog boxes.
1806	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1807	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1809		2541
1810	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1811		2543
1812	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1813	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1814	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1815	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1816	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1817	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1818	}	2569	}
1819		2570
1820	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1821		2572
1822	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1835		2586
1836	=item $player_object->enter_link	2587	=item $player_object->enter_link
1837		2588
1838	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1839		2590
1840	The player should be reasonably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1841	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
1842		2595
1843	Will never block.	2596	Will never block.
1844		2597
1845	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1846		2599
…		…
1866	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1867	my ($self) = @_;	2620	my ($self) = @_;
1868		2621
1869	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1870		2623
		2624	++$self->{_link_recursion};
		2625
1871	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1872		2627
1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1874	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1875		2630
1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1877	}	2632	}
1878		2633
1879	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1880	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1881		2638
1882	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1883		2640
1884	unless ($map) {	2641	unless ($map) {
1885	# restore original map position	2642	# restore original map position
…		…
1896	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1897	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1898		2655
1899	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1900	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1901	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1902		2659
1903	$map->load;	2660	$map->load;
1904	$map->load_diag;	2661	$map->load_neighbours;
1905		2662
1906	return unless $self->contr->active;	2663	return unless $self->contr->active;
1907	$self->activate_recursive;
1908		2664
1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1910	$self->enter_map ($map, $x, $y);	2666	if ($self->enter_map ($map, $x, $y)) {
1911	}	2667	# entering was successful
1912		2668	delete $self->{_link_recursion};
1913	cf::player->attach (	2669	# only activate afterwards, to support waiting in hooks
1914	on_logout => sub {	2670	$self->activate_recursive;
1915	my ($pl) = @_;
1916
1917	# abort map switching before logout
1918	if ($pl->ob->{_link_pos}) {
1919	cf::sync_job {
1920	$pl->ob->leave_link
1921	};
1922	}
1923	},	2671	}
1924	on_login => sub {
1925	my ($pl) = @_;
1926		2672
1927	# try to abort aborted map switching on player login :)	2673	}
1928	# should happen only on crashes
1929	if ($pl->ob->{_link_pos}) {
1930	$pl->ob->enter_link;
1931	(async {
1932	$pl->ob->reply (undef,
1933	"There was an internal problem at your last logout, "
1934	. "the server will try to bring you to your intended destination in a second.",
1935	cf::NDI_RED);
1936	# we need this sleep as the login has a concurrent enter_exit running
1937	# and this sleep increases chances of the player not ending up in scorn
1938	Coro::Timer::sleep 1;
1939	$pl->ob->leave_link;
1940	})->prio (2);
1941	}
1942	},
1943	);
1944		2674
1945	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1946		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1947	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1948		2689
1949	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1950	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1951		2701
1952	$self->enter_link;	2702	$self->enter_link;
1953		2703
1954	(async {	2704	(async {
		2705	$Coro::current->{desc} = "player::goto $path $x $y";
		2706
		2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
1955	my $map = eval {	2726	my $map = eval {
1956	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1957	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
		2732	} else {
		2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
		2735
1958	$map	2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
1959	} or	2742	}
1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1961		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1962	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1963	})->prio (1);	2750	})->prio (1);
1964	}	2751	}
1965		2752
1966	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1967		2754
…		…
1987	}	2774	}
1988		2775
1989	sub prepare_random_map {	2776	sub prepare_random_map {
1990	my ($exit) = @_;	2777	my ($exit) = @_;
1991		2778
1992	my $guard = cf::lock_acquire "exit_prepare:$exit";
1993
1994	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1995	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1996	# that depends on the exit object	2781	# that depends on the exit object
1997		2782
1998	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
2000	if ($exit->map) {	2785	if ($exit->map) {
2001	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
2002	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
2003	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
2004	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
2005	}	2792	}
2006		2793
2007	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
2008		2795
2009	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2010	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
2011	my $meta = "$RANDOMDIR/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
2012		2799
2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2014	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
2015	undef $fh;	2802	undef $fh;
2016	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
2017		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
2018	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
2019	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
2020	}	2811	}
2021	}	2812	}
2022		2813
2023	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
2024	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
2025		2816
2026	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
2027		2818
2028	if ($exit->slaying eq "/!") {
2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
2030	# the problem is that $exit might not survive long enough
2031	# so it needs to be done right now, right here
2032	cf::sync_job { prepare_random_map $exit };
2033	}
2034
2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2036	my $hp = $exit->stats->hp;
2037	my $sp = $exit->stats->sp;
2038
2039	$self->enter_link;	2819	$self->enter_link;
2040		2820
2041	(async {	2821	(async {
2042	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
2043	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
		2831	prepare_random_map $exit
		2832	if $exit->slaying eq "/!";
		2833	}
		2834
		2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
		2838
2044	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
2045		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
2046	1;	2845	1
2047	}) {	2846	}) {
2048	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
2049	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
2050	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
2051	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
2052		2851
2053	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
…		…
2072		2871
2073	utf8::encode $text;	2872	utf8::encode $text;
2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2075	}	2874	}
2076		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
2077	=item $client->ext_event ($type, %msg)	3063	=item $client->ext_msg ($type, @msg)
2078		3064
2079	Sends an exti event to the client.	3065	Sends an ext event to the client.
2080		3066
2081	=cut	3067	=cut
2082		3068
2083	sub cf::client::ext_event($$%) {	3069	sub cf::client::ext_msg($$@) {
2084	my ($self, $type, %msg) = @_;	3070	my ($self, $type, @msg) = @_;
2085		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
2086	$msg{msgtype} = "event_$type";	3075	push @msg, msgtype => "event_$type";
2087	$self->send_packet ("ext " . cf::to_json \%msg);	3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
2088	}	3096	}
2089		3097
2090	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
2091		3099
2092	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2094	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2095		3103
2096	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
2097	reliable at some point in the future.	3105	become reliable at some point in the future.
2098		3106
2099	=cut	3107	=cut
2100		3108
2101	sub cf::client::query {	3109	sub cf::client::query {
2102	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
2110	utf8::encode $text;	3118	utf8::encode $text;
2111	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2112		3120
2113	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
2114	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
2115	}	3125	}
2116		3126
2117	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
2118	on_reply => sub {	3133	on_reply => sub {
2119	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2120		3135
2121	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2122	# get handled first	3137	# get handled first
…		…
2134	} else {	3149	} else {
2135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2136	}	3151	}
2137	}	3152	}
2138	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
2139	);	3180	);
2140		3181
2141	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2142		3183
2143	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2159		3200
2160	$coro	3201	$coro
2161	}	3202	}
2162		3203
2163	cf::client->attach (	3204	cf::client->attach (
2164	on_destroy => sub {	3205	on_client_destroy => sub {
2165	my ($ns) = @_;	3206	my ($ns) = @_;
2166		3207
2167	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2168	},	3209	},
2169	);	3210	);
…		…
2184	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2185	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2186		3227
2187	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2188		3229
2189	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
2190		3235
2191	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2192		3237
2193	=pod	3238	=pod
2194		3239
2195	The following functions and methods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2196		3241
2197	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
2198	cf::object::player player	3247	cf::object::player
2199	cf::player peaceful	3248	player
2200	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2201		3255
2202	=cut	3256	=cut
2203		3257
2204	for (	3258	for (
2205	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
2206	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2207	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2208	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2209	) {	3265	) {
2210	no strict 'refs';	3266	no strict 'refs';
2211	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2212	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2230		3286
2231	my $qcode = $code;	3287	my $qcode = $code;
2232	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2233	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2234		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2235	local $_;	3294	local $_;
2236	local @safe::cf::_safe_eval_args = values %vars;
2237		3295
2238	my $eval =	3296	my $eval =
2239	"do {\n"	3297	"do {\n"
2240	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2241	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2242	. $code	3300	. $code
2243	. "\n}"	3301	. "\n}"
2244	;	3302	;
2245		3303
		3304	if ($CFG{safe_eval}) {
2246	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2247	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2248	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
2249		3313
2250	if ($@) {	3314	if ($@) {
2251	warn "$@";	3315	warn "$@";
2252	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2253	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2272	=cut	3336	=cut
2273		3337
2274	sub register_script_function {	3338	sub register_script_function {
2275	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2276		3340
2277	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2278	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2279	}	3343	}
2280		3344
2281	=back	3345	=back
2282		3346
2283	=cut	3347	=cut
2284
2285	#############################################################################
2286
2287	=head2 EXTENSION DATABASE SUPPORT
2288
2289	Crossfire maintains a very simple database for extension use. It can
2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2291	convert to/from binary).
2292
2293	The parameter C<$family> should best start with the name of the extension
2294	using it, it should be unique.
2295
2296	=over 4
2297
2298	=item $value = cf::db_get $family => $key
2299
2300	Returns a single value from the database.
2301
2302	=item cf::db_put $family => $key => $value
2303
2304	Stores the given C<$value> in the family.
2305
2306	=cut
2307
2308	our $DB;
2309
2310	sub db_init {
2311	unless ($DB) {
2312	$DB = BDB::db_create $DB_ENV;
2313
2314	cf::sync_job {
2315	eval {
2316	$DB->set_flags (BDB::CHKSUM);
2317
2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2320	cf::cleanup "db_open(db): $!" if $!;
2321	};
2322	cf::cleanup "db_open(db): $@" if $@;
2323	};
2324	}
2325	}
2326
2327	sub db_get($$) {
2328	my $key = "$_[0]/$_[1]";
2329
2330	cf::sync_job {
2331	BDB::db_get $DB, undef, $key, my $data;
2332
2333	$! ? ()
2334	: $data
2335	}
2336	}
2337
2338	sub db_put($$$) {
2339	BDB::dbreq_pri 4;
2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2341	}
2342
2343	=item cf::cache $id => [$paths...], $processversion => $process
2344
2345	Generic caching function that returns the value of the resource $id,
2346	caching and regenerating as required.
2347
2348	This function can block.
2349
2350	=cut
2351
2352	sub cache {
2353	my ($id, $src, $processversion, $process) = @_;
2354
2355	my $meta =
2356	join "\x00",
2357	$processversion,
2358	map {
2359	aio_stat $_
2360	and Carp::croak "$_: $!";
2361
2362	($_, (stat _)[7,9])
2363	} @$src;
2364
2365	my $dbmeta = db_get cache => "$id/meta";
2366	if ($dbmeta ne $meta) {
2367	# changed, we may need to process
2368
2369	my @data;
2370	my $md5;
2371
2372	for (0 .. $#$src) {
2373	0 <= aio_load $src->[$_], $data[$_]
2374	or Carp::croak "$src->[$_]: $!";
2375	}
2376
2377	# if processing is expensive, check
2378	# checksum first
2379	if (1) {
2380	$md5 =
2381	join "\x00",
2382	$processversion,
2383	map {
2384	Coro::cede;
2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
2386	} 0.. $#$src;
2387
2388
2389	my $dbmd5 = db_get cache => "$id/md5";
2390	if ($dbmd5 eq $md5) {
2391	db_put cache => "$id/meta", $meta;
2392
2393	return db_get cache => "$id/data";
2394	}
2395	}
2396
2397	my $t1 = Time::HiRes::time;
2398	my $data = $process->(\@data);
2399	my $t2 = Time::HiRes::time;
2400
2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2402
2403	db_put cache => "$id/data", $data;
2404	db_put cache => "$id/md5" , $md5;
2405	db_put cache => "$id/meta", $meta;
2406
2407	return $data;
2408	}
2409
2410	db_get cache => "$id/data"
2411	}
2412
2413	=item fork_call { }, $args
2414
2415	Executes the given code block with the given arguments in a seperate
2416	process, returning the results. Everything must be serialisable with
2417	Coro::Storable. May, of course, block. Note that the executed sub may
2418	never block itself or use any form of Event handling.
2419
2420	=cut
2421
2422	sub fork_call(&@) {
2423	my ($cb, @args) = @_;
2424
2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2426	# or die "socketpair: $!";
2427	pipe my $fh1, my $fh2
2428	or die "pipe: $!";
2429
2430	if (my $pid = fork) {
2431	close $fh2;
2432
2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2434	$res = Coro::Storable::thaw $res;
2435
2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2437
2438	die $$res unless "ARRAY" eq ref $res;
2439
2440	return wantarray ? @$res : $res->[-1];
2441	} else {
2442	local $SIG{__WARN__};
2443	eval {
2444	local $SIG{__DIE__};
2445	close $fh1;
2446
2447	my @res = eval { $cb->(@args) };
2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2449	};
2450
2451	warn $@ if $@;
2452	_exit 0;
2453	}
2454	}
2455
2456
2457		3348
2458	#############################################################################	3349	#############################################################################
2459	# the server's init and main functions	3350	# the server's init and main functions
2460		3351
2461	sub load_facedata($) {	3352	sub load_facedata($) {
2462	my ($path) = @_;	3353	my ($path) = @_;
		3354
		3355	# HACK to clear player env face cache, we need some signal framework
		3356	# for this (global event?)
		3357	%ext::player_env::MUSIC_FACE_CACHE = ();
		3358
		3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2463		3360
2464	warn "loading facedata from $path\n";	3361	warn "loading facedata from $path\n";
2465		3362
2466	my $facedata;	3363	my $facedata;
2467	0 < aio_load $path, $facedata	3364	0 < aio_load $path, $facedata
…		…
2470	$facedata = Coro::Storable::thaw $facedata;	3367	$facedata = Coro::Storable::thaw $facedata;
2471		3368
2472	$facedata->{version} == 2	3369	$facedata->{version} == 2
2473	or cf::cleanup "$path: version mismatch, cannot proceed.";	3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2474		3371
		3372	# patch in the exptable
		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3374	$facedata->{resource}{"res/exp_table"} = {
		3375	type => FT_RSRC,
		3376	data => $exp_table,
		3377	hash => (Digest::MD5::md5 $exp_table),
		3378	};
		3379	cf::cede_to_tick;
		3380
2475	{	3381	{
2476	my $faces = $facedata->{faceinfo};	3382	my $faces = $facedata->{faceinfo};
2477		3383
2478	while (my ($face, $info) = each %$faces) {	3384	while (my ($face, $info) = each %$faces) {
2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2483	Coro::cede;	3391
		3392	cf::cede_to_tick;
2484	}	3393	}
2485		3394
2486	while (my ($face, $info) = each %$faces) {	3395	while (my ($face, $info) = each %$faces) {
2487	next unless $info->{smooth};	3396	next unless $info->{smooth};
		3397
2488	my $idx = cf::face::find $face	3398	my $idx = cf::face::find $face
2489	or next;	3399	or next;
		3400
2490	if (my $smooth = cf::face::find $info->{smooth}) {	3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2492	} else {	3404	} else {
2493	warn "smooth face '$info->{smooth}' not found for face '$face'";	3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
2494	}	3406	}
2495	Coro::cede;	3407
		3408	cf::cede_to_tick;
2496	}	3409	}
2497	}	3410	}
2498		3411
2499	{	3412	{
2500	my $anims = $facedata->{animinfo};	3413	my $anims = $facedata->{animinfo};
2501		3414
2502	while (my ($anim, $info) = each %$anims) {	3415	while (my ($anim, $info) = each %$anims) {
2503	cf::anim::set $anim, $info->{frames}, $info->{facings};	3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
2504	Coro::cede;	3417	cf::cede_to_tick;
2505	}	3418	}
2506		3419
2507	cf::anim::invalidate_all; # d'oh	3420	cf::anim::invalidate_all; # d'oh
2508	}	3421	}
2509		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
2510	1	3442	1
2511	}	3443	}
2512		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
		3473	sub load_resource_file($) {
		3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
2513	sub reload_regions {	3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
2514	load_resource_file "$MAPDIR/regions"	3488	load_resource_file "$MAPDIR/regions"
2515	or die "unable to load regions file\n";	3489	or die "unable to load regions file\n";
		3490
		3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
2516	}	3495	}
2517		3496
2518	sub reload_facedata {	3497	sub reload_facedata {
2519	load_facedata "$DATADIR/facedata"	3498	load_facedata "$DATADIR/facedata"
2520	or die "unable to load facedata\n";	3499	or die "unable to load facedata\n";
…		…
2531	}	3510	}
2532		3511
2533	sub reload_resources {	3512	sub reload_resources {
2534	warn "reloading resource files...\n";	3513	warn "reloading resource files...\n";
2535		3514
2536	reload_regions;
2537	reload_facedata;	3515	reload_facedata;
2538	reload_archetypes;	3516	reload_archetypes;
		3517	reload_regions;
2539	reload_treasures;	3518	reload_treasures;
2540		3519
2541	warn "finished reloading resource files\n";	3520	warn "finished reloading resource files\n";
2542	}	3521	}
2543		3522
2544	sub init {	3523	sub reload_config {
2545	reload_resources;	3524	warn "reloading config file...\n";
2546	}
2547		3525
2548	sub cfg_load {
2549	open my $fh, "<:utf8", "$CONFDIR/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2550	or return;	3527	or return;
2551		3528
2552	local $/;	3529	local $/;
2553	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2554		3531
2555	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2556		3533
2557	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2558	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2559		3536
2560	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2562	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2563	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2564	};	3541	};
2565	warn $@ if $@;	3542	warn $@ if $@;
2566	}	3543	}
		3544
		3545	warn "finished reloading resource files\n";
		3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2567	}	3574	}
2568		3575
2569	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2570	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2571	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2573	(async {	3589	(async {
2574	Event::one_event;	3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
2575	})->prio (Coro::PRIO_MAX);	3592	})->prio (Coro::PRIO_MAX);
2576	};	3593	};
2577		3594
2578	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
		3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
2579	db_init;	3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2580	load_extensions;	3618	load_extensions;
2581		3619
2582	$TICK_WATCHER->start;	3620	utime time, time, $RUNTIMEFILE;
2583	Event::loop;	3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2584	}	3633	}
2585		3634
2586	#############################################################################	3635	#############################################################################
2587	# initialisation and cleanup	3636	# initialisation and cleanup
2588		3637
2589	# install some emergency cleanup handlers	3638	# install some emergency cleanup handlers
2590	BEGIN {	3639	BEGIN {
		3640	our %SIGWATCHER = ();
2591	for my $signal (qw(INT HUP TERM)) {	3641	for my $signal (qw(INT HUP TERM)) {
2592	Event->signal (	3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2593	reentrant => 0,
2594	data => WF_AUTOCANCEL,
2595	signal => $signal,
2596	prio => 0,
2597	cb => sub {
2598	cf::cleanup "SIG$signal";	3643	cf::cleanup "SIG$signal";
2599	},
2600	);	3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
2601	}	3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
2602	}	3734	}
2603		3735
2604	sub emergency_save() {	3736	sub emergency_save() {
2605	my $freeze_guard = cf::freeze_mainloop;	3737	my $freeze_guard = cf::freeze_mainloop;
2606		3738
2607	warn "enter emergency perl save\n";	3739	warn "emergency_perl_save: enter\n";
2608		3740
2609	cf::sync_job {	3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
2610	# use a peculiar iteration method to avoid tripping on perl	3747	# use a peculiar iteration method to avoid tripping on perl
2611	# refcount bugs in for. also avoids problems with players	3748	# refcount bugs in for. also avoids problems with players
2612	# and maps saved/destroyed asynchronously.	3749	# and maps saved/destroyed asynchronously.
2613	warn "begin emergency player save\n";	3750	warn "emergency_perl_save: begin player save\n";
2614	for my $login (keys %cf::PLAYER) {	3751	for my $login (keys %cf::PLAYER) {
2615	my $pl = $cf::PLAYER{$login} or next;	3752	my $pl = $cf::PLAYER{$login} or next;
2616	$pl->valid or next;	3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2617	$pl->save;	3755	$pl->save;
2618	}	3756	}
2619	warn "end emergency player save\n";	3757	warn "emergency_perl_save: end player save\n";
2620		3758
2621	warn "begin emergency map save\n";	3759	warn "emergency_perl_save: begin map save\n";
2622	for my $path (keys %cf::MAP) {	3760	for my $path (keys %cf::MAP) {
2623	my $map = $cf::MAP{$path} or next;	3761	my $map = $cf::MAP{$path} or next;
2624	$map->valid or next;	3762	$map->valid or next;
2625	$map->save;	3763	$map->save;
2626	}	3764	}
2627	warn "end emergency map save\n";	3765	warn "emergency_perl_save: end map save\n";
2628		3766
2629	warn "begin emergency database checkpoint\n";	3767	warn "emergency_perl_save: begin database checkpoint\n";
2630	BDB::db_env_txn_checkpoint $DB_ENV;	3768	BDB::db_env_txn_checkpoint $DB_ENV;
2631	warn "end emergency database checkpoint\n";	3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
2632	};	3774	};
2633		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
2634	warn "leave emergency perl save\n";	3781	warn "emergency_perl_save: leave\n";
2635	}	3782	}
2636		3783
2637	sub post_cleanup {	3784	sub post_cleanup {
2638	my ($make_core) = @_;	3785	my ($make_core) = @_;
2639		3786
2640	warn Carp::longmess "post_cleanup backtrace"	3787	warn Carp::longmess "post_cleanup backtrace"
2641	if $make_core;	3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
2642	}	3817	}
2643		3818
2644	sub do_reload_perl() {	3819	sub do_reload_perl() {
2645	# can/must only be called in main	3820	# can/must only be called in main
2646	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2647	warn "can only reload from main coroutine";	3822	warn "can only reload from main coroutine";
2648	return;	3823	return;
2649	}	3824	}
2650		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2651	warn "reloading...";	3831	warn "reloading...";
2652		3832
2653	warn "entering sync_job";	3833	warn "entering sync_job";
2654		3834
2655	cf::sync_job {	3835	cf::sync_job {
2656	cf::write_runtime; # external watchdog should not bark	3836	cf::write_runtime_sync; # external watchdog should not bark
2657	cf::emergency_save;	3837	cf::emergency_save;
2658	cf::write_runtime; # external watchdog should not bark	3838	cf::write_runtime_sync; # external watchdog should not bark
2659		3839
2660	warn "syncing database to disk";	3840	warn "syncing database to disk";
2661	BDB::db_env_txn_checkpoint $DB_ENV;	3841	BDB::db_env_txn_checkpoint $DB_ENV;
2662		3842
2663	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2664		3844
2665	warn "cancelling all WF_AUTOCANCEL watchers";
2666	for (Event::all_watchers) {
2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2668	}
2669
2670	warn "flushing outstanding aio requests";	3845	warn "flushing outstanding aio requests";
2671	for (;;) {
2672	BDB::flush;
2673	IO::AIO::flush;
2674	Coro::cede;
2675	last unless IO::AIO::nreqs || BDB::nreqs;	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2676	warn "iterate...";	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2677	}
2678
2679	++$RELOAD;
2680
2681	warn "cancelling all extension coros";
2682	$_->cancel for values %EXT_CORO;
2683	%EXT_CORO = ();
2684
2685	warn "removing commands";
2686	%COMMAND = ();
2687
2688	warn "removing ext commands";
2689	%EXTCMD = ();
2690
2691	warn "unloading/nuking all extensions";
2692	for my $pkg (@EXTS) {
2693	warn "... unloading $pkg";
2694
2695	if (my $cb = $pkg->can ("unload")) {
2696	eval {
2697	$cb->($pkg);
2698	1
2699	} or warn "$pkg unloaded, but with errors: $@";
2700	}	3848	}
2701		3849
2702	warn "... nuking $pkg";	3850	warn "cancelling all extension coros";
2703	Symbol::delete_package $pkg;	3851	$_->cancel for values %EXT_CORO;
2704	}	3852	%EXT_CORO = ();
2705		3853
2706	warn "unloading all perl modules loaded from $LIBDIR";	3854	warn "removing commands";
2707	while (my ($k, $v) = each %INC) {	3855	%COMMAND = ();
2708	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2709		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
2710	warn "... unloading $k";	3863	warn "... unloading $pkg";
2711	delete $INC{$k};
2712		3864
2713	$k =~ s/\.pm$//;
2714	$k =~ s/\//::/g;
2715
2716	if (my $cb = $k->can ("unload_module")) {	3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
2717	$cb->();	3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2718	}	3874	}
2719		3875
2720	Symbol::delete_package $k;	3876	warn "unloading all perl modules loaded from $LIBDIR";
		3877	while (my ($k, $v) = each %INC) {
		3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
2721	}	3891	}
2722		3892
2723	warn "getting rid of safe::, as good as possible";	3893	warn "getting rid of safe::, as good as possible";
2724	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2725	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2726		3896
2727	warn "unloading cf.pm \"a bit\"";	3897	warn "unloading cf.pm \"a bit\"";
2728	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
2729	delete $INC{"cf/pod.pm"};	3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2730		3900
2731	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2732	# and global variables created in xs	3902	# and global variables created in xs
2733	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2734		3904
2735	warn "unload completed, starting to reload now";	3905	warn "unload completed, starting to reload now";
2736		3906
2737	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2738	require cf;	3908	require cf;
2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2740		3910
2741	warn "loading config and database again";	3911	warn "loading config and database again";
2742	cf::cfg_load;	3912	cf::reload_config;
2743		3913
2744	warn "loading extensions";	3914	warn "loading extensions";
2745	cf::load_extensions;	3915	cf::load_extensions;
2746		3916
		3917	if ($REATTACH_ON_RELOAD) {
2747	warn "reattaching attachments to objects/players";	3918	warn "reattaching attachments to objects/players";
2748	_global_reattach; # objects, sockets	3919	_global_reattach; # objects, sockets
2749	warn "reattaching attachments to maps";	3920	warn "reattaching attachments to maps";
2750	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
2751	warn "reattaching attachments to players";	3922	warn "reattaching attachments to players";
2752	reattach $_ for values %PLAYER;	3923	reattach $_ for values %PLAYER;
		3924	}
2753		3925
		3926	warn "running post_init jobs";
		3927	(pop @POST_INIT)->(1) while @POST_INIT;
		3928
2754	warn "leaving sync_job";	3929	warn "leaving sync_job";
2755		3930
2756	1	3931	1
2757	} or do {	3932	} or do {
2758	warn $@;	3933	warn $@;
2759	warn "error while reloading, exiting.";	3934	cf::cleanup "error while reloading, exiting.";
2760	exit 1;
2761	};	3935	};
2762		3936
2763	warn "reloaded";	3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
2764	};	3943	};
2765		3944
2766	our $RELOAD_WATCHER; # used only during reload	3945	our $RELOAD_WATCHER; # used only during reload
2767		3946
2768	sub reload_perl() {	3947	sub reload_perl() {
2769	# doing reload synchronously and two reloads happen back-to-back,	3948	# doing reload synchronously and two reloads happen back-to-back,
2770	# coro crashes during coro_state_free->destroy here.	3949	# coro crashes during coro_state_free->destroy here.
2771		3950
2772	$RELOAD_WATCHER ||= Event->timer (	3951	$RELOAD_WATCHER ||= cf::async {
2773	reentrant => 0,	3952	Coro::AIO::aio_wait cache_extensions;
2774	after => 0,	3953
2775	data => WF_AUTOCANCEL,	3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2776	cb => sub {
2777	do_reload_perl;	3955	do_reload_perl;
2778	undef $RELOAD_WATCHER;	3956	undef $RELOAD_WATCHER;
2779	},	3957	};
2780	);	3958	};
2781	}	3959	}
2782		3960
2783	register_command "reload" => sub {	3961	register_command "reload" => sub {
2784	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2785		3963
2786	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2787	$who->message ("reloading server.");	3965	$who->message ("reloading server.");
		3966	async {
		3967	$Coro::current->{desc} = "perl_reload";
2788	async { reload_perl };	3968	reload_perl;
		3969	};
2789	}	3970	}
2790	};	3971	};
2791		3972
2792	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2793		3974
…		…
2795		3976
2796	our @WAIT_FOR_TICK;	3977	our @WAIT_FOR_TICK;
2797	our @WAIT_FOR_TICK_BEGIN;	3978	our @WAIT_FOR_TICK_BEGIN;
2798		3979
2799	sub wait_for_tick {	3980	sub wait_for_tick {
2800	return unless $TICK_WATCHER->is_active;
2801	return if $Coro::current == $Coro::main;	3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2802		3982
2803	my $signal = new Coro::Signal;	3983	my $signal = new Coro::Signal;
2804	push @WAIT_FOR_TICK, $signal;	3984	push @WAIT_FOR_TICK, $signal;
2805	$signal->wait;	3985	$signal->wait;
2806	}	3986	}
2807		3987
2808	sub wait_for_tick_begin {	3988	sub wait_for_tick_begin {
2809	return unless $TICK_WATCHER->is_active;
2810	return if $Coro::current == $Coro::main;	3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2811		3990
2812	my $signal = new Coro::Signal;	3991	my $signal = new Coro::Signal;
2813	push @WAIT_FOR_TICK_BEGIN, $signal;	3992	push @WAIT_FOR_TICK_BEGIN, $signal;
2814	$signal->wait;	3993	$signal->wait;
2815	}	3994	}
2816		3995
2817	$TICK_WATCHER = Event->timer (	3996	sub tick {
2818	reentrant => 0,
2819	parked => 1,
2820	prio => 0,
2821	at => $NEXT_TICK || $TICK,
2822	data => WF_AUTOCANCEL,
2823	cb => sub {
2824	if ($Coro::current != $Coro::main) {	3997	if ($Coro::current != $Coro::main) {
2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2826	unless ++$bug_warning > 10;	3999	unless ++$bug_warning > 10;
2827	return;	4000	return;
2828	}	4001	}
2829		4002
2830	$NOW = Event::time;
2831
2832	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2833		4004
2834	$RUNTIME += $TICK;	4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2835	$NEXT_TICK += $TICK;
2836		4006
2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2838	$NEXT_RUNTIME_WRITE = $NOW + 10;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2839	Coro::async_pool {	4009	Coro::async_pool {
		4010	$Coro::current->{desc} = "runtime saver";
2840	write_runtime	4011	write_runtime_sync
2841	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
2842	};
2843	}	4013	};
		4014	}
2844		4015
2845	# my $AFTER = Event::time;
2846	# warn $AFTER - $NOW;#d#
2847
2848	# if we are delayed by four ticks or more, skip them all
2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2850
2851	$TICK_WATCHER->at ($NEXT_TICK);
2852	$TICK_WATCHER->start;
2853
2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2855	$sig->send;	4017	$sig->send;
2856	}	4018	}
2857	while (my $sig = shift @WAIT_FOR_TICK) {	4019	while (my $sig = shift @WAIT_FOR_TICK) {
2858	$sig->send;	4020	$sig->send;
2859	}
2860
2861	_post_tick;
2862	},	4021	}
2863	);	4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
		4031	}
		4032	}
		4033	}
2864		4034
2865	{	4035	{
2866	BDB::max_poll_time $TICK * 0.1;	4036	# configure BDB
2867	$BDB_POLL_WATCHER = Event->io (	4037
2868	reentrant => 0,
2869	fd => BDB::poll_fileno,
2870	poll => 'r',
2871	prio => 0,
2872	data => WF_AUTOCANCEL,
2873	cb => \&BDB::poll_cb,
2874	);
2875	BDB::min_parallel 8;	4038	BDB::min_parallel 16;
2876		4039	BDB::max_poll_reqs $TICK * 0.1;
2877	BDB::set_sync_prepare {	4040	$AnyEvent::BDB::WATCHER->priority (1);
2878	my $status;
2879	my $current = $Coro::current;
2880	(
2881	sub {
2882	$status = $!;
2883	$current->ready; undef $current;
2884	},
2885	sub {
2886	Coro::schedule while defined $current;
2887	$! = $status;
2888	},
2889	)
2890	};
2891		4041
2892	unless ($DB_ENV) {	4042	unless ($DB_ENV) {
2893	$DB_ENV = BDB::db_env_create;	4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2894		4049
2895	cf::sync_job {	4050	cf::sync_job {
2896	eval {	4051	eval {
2897	BDB::db_env_open	4052	BDB::db_env_open
2898	$DB_ENV,	4053	$DB_ENV,
…		…
2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2902	0666;	4057	0666;
2903		4058
2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2905
2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2907	$DB_ENV->set_lk_detect;
2908	};	4060	};
2909		4061
2910	cf::cleanup "db_env_open(db): $@" if $@;	4062	cf::cleanup "db_env_open(db): $@" if $@;
2911	};	4063	};
2912	}	4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
2913	}	4075	}
2914		4076
2915	{	4077	{
		4078	# configure IO::AIO
		4079
2916	IO::AIO::min_parallel 8;	4080	IO::AIO::min_parallel 8;
2917
2918	undef $Coro::AIO::WATCHER;
2919	IO::AIO::max_poll_time $TICK * 0.1;	4081	IO::AIO::max_poll_time $TICK * 0.1;
2920	$AIO_POLL_WATCHER = Event->io (	4082	undef $AnyEvent::AIO::WATCHER;
2921	reentrant => 0,	4083	}
2922	data => WF_AUTOCANCEL,	4084
2923	fd => IO::AIO::poll_fileno,	4085	my $_log_backtrace;
2924	poll => 'r',	4086
2925	prio => 6,	4087	sub _log_backtrace {
2926	cb => \&IO::AIO::poll_cb,	4088	my ($msg, @addr) = @_;
2927	);	4089
		4090	$msg =~ s/\n//;
		4091
		4092	# limit the # of concurrent backtraces
		4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
		4124	}
2928	}	4125	}
2929		4126
2930	# load additional modules	4127	# load additional modules
2931	use cf::pod;	4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2932		4130
2933	END { cf::emergency_save }	4131	END { cf::emergency_save }
2934		4132
2935	1	4133	1
2936		4134

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