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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.531 by root, Wed Apr 28 21:07:41 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; # unused
		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	warn "starting to write runtime...\n";#d#	584	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
378	or return;
379		585
380	my $value = $cf::RUNTIME + 90 + 10;	586	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	587	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		588
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	589	# we seemingly have to make a local copy of the whole thing,
385	and return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
386		592
387	# always fsync - this file is important	593	my @res = Coro::Util::fork_eval {
388	aio_fsync $fh	594	reset_signals;
389	and return;	595	&$cb
		596	}, @args;
390		597
391	close $fh	598	wantarray ? @res : $res[-1]
392	or return;	599	}
393		600
394	aio_rename "$runtime~", $runtime	601	sub objinfo {
395	and return;
396
397	warn "... done writing runtime.\n";#d#
398
399	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"
400	}	764	}
401		765
402	=item cf::datalog type => key => value, ...	766	=item cf::datalog type => key => value, ...
403		767
404	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.
…		…
416		780
417	#############################################################################	781	#############################################################################
418		782
419	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
420		784
421	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
422	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")
423	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
424		788
425	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>
426	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
427	crossfire+).	791	Deliantra).
428		792
429	=over 4	793	=over 4
430		794
431	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
432		796
…		…
476	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
477		841
478	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
479	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
480		844
481	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
482	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.
483		847
484	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
485		849
486	=over 4	850	=over 4
…		…
595	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
596		960
597	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
601		965
602	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	967	my $pkg = shift @arg;
604		968
605	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
635	}	999	}
636		1000
637	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
638	} else {	1002	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	1004	}
641		1005
642	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
643	}	1007	}
644		1008
…		…
646	if (ref $_[0]) {	1010	if (ref $_[0]) {
647	_object_attach @_;	1011	_object_attach @_;
648	} else {	1012	} else {
649	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
650	}	1014	}
		1015	_recalc_want;
651	};	1016	};
652		1017
653	# all those should be optimised	1018	# all those should be optimised
654	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
659	reattach ($obj);	1024	reattach ($obj);
660	} else {	1025	} else {
661	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
662	}	1027	}
		1028	_recalc_want;
663	};	1029	};
664		1030
665	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
667		1033
…		…
682	";	1048	";
683	die if $@;	1049	die if $@;
684	}	1050	}
685		1051
686	our $override;	1052	our $override;
687	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?
688		1054
689	sub override {	1055	sub override {
690	$override = 1;	1056	$override = 1;
691	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
692	}	1058	}
693		1059
694	sub do_invoke {	1060	sub do_invoke {
695	my $event = shift;	1061	my $event = shift;
696	my $callbacks = shift;	1062	my $callbacks = shift;
697		1063
698	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
699		1065
700	local $override;	1066	local $override;
701		1067
702	for (@$callbacks) {	1068	for (@$callbacks) {
703	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
712	}	1078	}
713		1079
714	0	1080	0
715	}	1081	}
716		1082
717	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
718		1084
719	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
720		1086
721	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
722		1088
723	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
724	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
725	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
726		1092
727	=back	1093	=back
728		1094
729	=cut	1095	=cut
730		1096
731	#############################################################################	1097	#############################################################################
732	# 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, $ob2
		1140	}
733		1141
734	sub reattach {	1142	sub reattach {
735	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
736	my ($obj) = @_;	1144	my ($obj) = @_;
737		1145
		1146	# no longer needed after getting rid of delete_package?
738	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
739		1148
740	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
741		1150
742	@$registry = ();	1151	@$registry = ();
743		1152
…		…
758	cf::attachable->attach (	1167	cf::attachable->attach (
759	prio => -1000000,	1168	prio => -1000000,
760	on_instantiate => sub {	1169	on_instantiate => sub {
761	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
762		1171
763	$data = from_json $data;	1172	$data = decode_json $data;
764		1173
765	for (@$data) {	1174	for (@$data) {
766	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
767		1176
768	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
784	sub object_freezer_save {	1193	sub object_freezer_save {
785	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
786		1195
787	sync_job {	1196	sync_job {
788	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
789	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
790	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
791		1202
792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
793	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
795	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	}
796	close $fh;	1210	aio_close $fh;
797		1211
798	if (@$objs) {	1212	if (@$objs) {
799	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) {
800	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
801	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
802	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
803	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	}
804	close $fh;	1221	aio_close $fh;
805	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
806	}	1223	}
807	} else {	1224	} else {
808	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
809	}	1226	}
810		1227
811	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
812	} else {	1232	} else {
813	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
814	}	1234	}
815	} else {	1235	} else {
816	aio_unlink $filename;	1236	aio_unlink $filename;
817	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
818	}	1238	}
819	}	1239	};
820	}	1240	}
821		1241
822	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
823	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
824		1244
…		…
836	or return;	1256	or return;
837		1257
838	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
839	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
840	or return;	1260	or return;
		1261
841	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
842	}	1264	}
843		1265
		1266	utf8::decode (my $decname = $filename);
844	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
845	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
846	return ($data, $av);	1271	($data, $av)
847	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
848		1279
849	#############################################################################	1280	#############################################################################
850	# command handling &c	1281	# command handling &c
851		1282
852	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1297	}
867		1298
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1300
870	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.
871		1306
872	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
873	called.	1308	called.
874		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
875	=cut	1321	=cut
876		1322
877	sub register_extcmd {	1323	sub register_extcmd {
878	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
879		1325
880	$EXTCMD{$name} = $cb;	1326	$EXTCMD{$name} = $cb;
881	}	1327	}
882		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
		1336
883	cf::player->attach (	1337	cf::player->attach (
884	on_command => sub {	1338	on_unknown_command => sub {
885	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
886		1340
887	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
888	or return;	1342	or return;
889		1343
…		…
894	cf::override;	1348	cf::override;
895	},	1349	},
896	on_extcmd => sub {	1350	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
898		1352
899	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1354
901	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
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
903	if (my %reply = $cb->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
904	$pl->ext_reply ($msg->{msgid}, %reply);
905	}
906	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
907	} else {	1370	} else {
908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
909	}	1372	}
910		1373
911	cf::override;	1374	cf::override;
912	},	1375	},
913	);	1376	);
914		1377
		1378	# "readahead" all extensions
915	sub load_extension {	1379	sub cache_extensions {
916	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
917		1381
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
919	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
920	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}	1385	}
943	die $@;
944	}	1386	};
945		1387
946	push @EXTS, $pkg;	1388	$grp
947	}	1389	}
948		1390
949	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
950	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1396	next unless -r $path;
952	eval {	1397
953	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 $active;
		1460	}
954	1	1461	}
955	} or warn "$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	}
956	}	1472	};
957	}	1473	}
958		1474
959	#############################################################################	1475	#############################################################################
960		1476
		1477	=back
		1478
961	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
962		1480
963	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
964		1482
965	=cut	1483	=cut
966		1484
967	package cf::player;	1485	package cf::player;
968		1486
969	use Coro::AIO;	1487	use Coro::AIO;
970		1488
971	=head3 cf::player	1489	=head3 cf::player
972		1490
973	=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	}
974		1506
975	=item cf::player::find $login	1507	=item cf::player::find $login
976		1508
977	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
978		1510
…		…
997		1529
998	sub exists($) {	1530	sub exists($) {
999	my ($login) = @_;	1531	my ($login) = @_;
1000		1532
1001	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
1002	or cf::sync_job { !aio_stat path $login }	1534	or !aio_stat path $login
1003	}	1535	}
1004		1536
1005	sub find($) {	1537	sub find($) {
1006	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
1007	my $login = $_[0];	1539	my $login = $_[0];
…		…
1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1017	aio_unlink +(playerdir $login) . "/$login.pl";	1549	aio_unlink +(playerdir $login) . "/$login.pl";
1018		1550
1019	my $pl = load_pl path $login	1551	my $f = new_from_file cf::object::thawer path $login
1020	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;
1021	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
1022	}	1560	}
1023	}	1561	}
1024	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($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	);
1025		1576
1026	sub save($) {	1577	sub save($) {
1027	my ($pl) = @_;	1578	my ($pl) = @_;
1028		1579
1029	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1034	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1035		1586
1036	aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1037	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1038		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
1039	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1040	Coro::cede;	1596	cf::cede_to_tick;
1041	}	1597	}
1042		1598
1043	sub new($) {	1599	sub new($) {
1044	my ($login) = @_;	1600	my ($login) = @_;
1045		1601
…		…
1051	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1052		1608
1053	$self	1609	$self
1054	}	1610	}
1055		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
1056	=item $pl->quit_character	1622	=item $pl->quit_character
1057		1623
1058	Nukes the player without looking back. If logged in, the connection will	1624	Nukes the player without looking back. If logged in, the connection will
1059	be destroyed. May block for a long time.	1625	be destroyed. May block for a long time.
1060		1626
…		…
1064	my ($pl) = @_;	1630	my ($pl) = @_;
1065		1631
1066	my $name = $pl->ob->name;	1632	my $name = $pl->ob->name;
1067		1633
1068	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1069	$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
1070		1636
1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1072	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1074	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1075		1642
1076	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1077	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1113	or return [];	1680	or return [];
1114		1681
1115	my @logins;	1682	my @logins;
1116		1683
1117	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") {
1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1119	aio_read $fh, 0, 512, my $buf, 0 or next;	1691	aio_read $fh, 0, 512, my $buf, 0 or next;
1120	$buf !~ /^password -------------$/m or next; # official not-valid tag	1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
1121		1694
1122	utf8::decode $login;	1695	utf8::decode $login;
1123	push @logins, $login;	1696	push @logins, $login;
1124	}	1697	}
1125		1698
1126	\@logins	1699	\@logins
1127	}	1700	}
1128		1701
1129	=item $player->maps	1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
1130		1705
1131	Returns an arrayref of map paths that are private for this	1706	Returns an arrayref of map paths that are private for this
1132	player. May block.	1707	player. May block.
1133		1708
1134	=cut	1709	=cut
…		…
1152	}	1727	}
1153		1728
1154	\@paths	1729	\@paths
1155	}	1730	}
1156		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1157	=item $player->ext_reply ($msgid, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1158		1737
1159	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1160		1739
1161	=cut	1740	=cut
1162		1741
1163	sub ext_reply($$%) {	1742	sub ext_reply($$@) {
1164	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1165		1744
1166	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1167
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1746	}
1170		1747
1171	=item $player->ext_event ($type, %msg)	1748	=item $player->ext_msg ($type, @msg)
1172		1749
1173	Sends an ext event to the client.	1750	Sends an ext event to the client.
1174		1751
1175	=cut	1752	=cut
1176		1753
1177	sub ext_event($$%) {	1754	sub ext_msg($$@) {
1178	my ($self, $type, %msg) = @_;	1755	my ($self, $type, @msg) = @_;
1179		1756
1180	$self->ns->ext_event ($type, %msg);	1757	$self->ns->ext_msg ($type, @msg);
1181	}	1758	}
1182		1759
1183	=head3 cf::region	1760	=head3 cf::region
1184		1761
1185	=over 4	1762	=over 4
…		…
1188		1765
1189	package cf::region;	1766	package cf::region;
1190		1767
1191	=item cf::region::find_by_path $path	1768	=item cf::region::find_by_path $path
1192		1769
1193	Tries to decuce the probable region for a map knowing only its path.	1770	Tries to decuce the likely region for a map knowing only its path.
1194		1771
1195	=cut	1772	=cut
1196		1773
1197	sub find_by_path($) {	1774	sub find_by_path($) {
1198	my ($path) = @_;	1775	my ($path) = @_;
1199		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
1200	my ($match, $specificity);	1779	my ($match, $specificity);
1201		1780
1202	for my $region (list) {	1781	for my $region (list) {
1203	if ($region->match && $path =~ $region->match) {	1782	if ($region->{match} && $path =~ $region->{match}) {
1204	($match, $specificity) = ($region, $region->specificity)	1783	($match, $specificity) = ($region, $region->specificity)
1205	if $region->specificity > $specificity;	1784	if $region->specificity > $specificity;
1206	}	1785	}
1207	}	1786	}
1208		1787
…		…
1229	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1230	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1231		1810
1232	sub generate_random_map {	1811	sub generate_random_map {
1233	my ($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
1234	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1235	$self->_create_random_map (	1817	$self->_create_random_map (
1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1239	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1240	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1241	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1242	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1264		1846
1265	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1266	}	1848	}
1267		1849
1268	# also paths starting with '/'	1850	# also paths starting with '/'
1269	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1270		1852
1271	sub thawer_merge {	1853	sub thawer_merge {
1272	my ($self, $merge) = @_;	1854	my ($self, $merge) = @_;
1273		1855
1274	# we have to keep some variables in memory intact	1856	# we have to keep some variables in memory intact
1275	local $self->{path};	1857	local $self->{path};
1276	local $self->{load_path};	1858	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1859
1280	$self->SUPER::thawer_merge ($merge);	1860	$self->SUPER::thawer_merge ($merge);
1281	}	1861	}
1282		1862
1283	sub normalise {	1863	sub normalise {
…		…
1330	$self->init; # pass $1 etc.	1910	$self->init; # pass $1 etc.
1331	return $self;	1911	return $self;
1332	}	1912	}
1333	}	1913	}
1334		1914
1335	Carp::carp "unable to resolve path '$path' (base '$base').";	1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
1336	()	1916	()
1337	}	1917	}
1338		1918
1339	sub init {	1919	sub init {
1340	my ($self) = @_;	1920	my ($self) = @_;
…		…
1362		1942
1363	# the temporary/swap location	1943	# the temporary/swap location
1364	sub save_path {	1944	sub save_path {
1365	my ($self) = @_;	1945	my ($self) = @_;
1366		1946
1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1368	"$TMPDIR/$path.map"	1948	"$TMPDIR/$path.map"
1369	}	1949	}
1370		1950
1371	# the unique path, undef == no special unique path	1951	# the unique path, undef == no special unique path
1372	sub uniq_path {	1952	sub uniq_path {
1373	my ($self) = @_;	1953	my ($self) = @_;
1374		1954
1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1376	"$UNIQUEDIR/$path"	1956	"$UNIQUEDIR/$path"
1377	}	1957	}
1378		1958
1379	# and all this just because we cannot iterate over	1959	sub decay_objects {
1380	# all maps in C++...
1381	sub change_all_map_light {
1382	my ($change) = @_;	1960	my ($self) = @_;
1383		1961
1384	$_->change_map_light ($change)	1962	return if $self->{deny_reset};
1385	for grep $_->outdoor, values %cf::MAP;	1963
		1964	$self->do_decay_objects;
1386	}	1965	}
1387		1966
1388	sub unlink_save {	1967	sub unlink_save {
1389	my ($self) = @_;	1968	my ($self) = @_;
1390		1969
…		…
1395		1974
1396	sub load_header_from($) {	1975	sub load_header_from($) {
1397	my ($self, $path) = @_;	1976	my ($self, $path) = @_;
1398		1977
1399	utf8::encode $path;	1978	utf8::encode $path;
1400	#aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1401	# or return;
1402
1403	$self->_load_header ($path)
1404	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;
1405		1987
1406	$self->{load_path} = $path;	1988	$self->{load_path} = $path;
1407		1989
1408	1	1990	1
1409	}	1991	}
…		…
1448	$self->load_header_orig	2030	$self->load_header_orig
1449	or return;	2031	or return;
1450	$self->prepare_orig;	2032	$self->prepare_orig;
1451	}	2033	}
1452		2034
		2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
		2037
1453	$self->default_region (cf::region::find_by_path $self->{path})	2038	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	2039	unless $self->default_region;
1455		2040
1456	1	2041	1
1457	}	2042	}
…		…
1460	sub find {	2045	sub find {
1461	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1462		2047
1463	$path = normalise $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1464		2049
		2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1465	cf::lock_wait "map_find:$path";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1466		2052
1467	$cf::MAP{$path} || do {	2053	$cf::MAP{$path} || do {
1468	my $guard = cf::lock_acquire "map_find:$path";
1469	my $map = new_from_path cf::map $path	2054	my $map = new_from_path cf::map $path
1470	or return;	2055	or return;
1471		2056
1472	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1473		2058
1474	$map->load_header	2059	$map->load_header
1475	or return;	2060	or return;
1476		2061
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	2063	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1480	$map->reset;	2067	$map->reset;
1481	undef $guard;
1482	return find $path;	2068	return find $path;
1483	}	2069	}
1484		2070
1485	$cf::MAP{$path} = $map	2071	$cf::MAP{$path} = $map
1486	}	2072	}
1487	}	2073	}
1488		2074
1489	sub pre_load { }	2075	sub pre_load { }
1490	sub post_load { }	2076	#sub post_load { } # XS
1491		2077
1492	sub load {	2078	sub load {
1493	my ($self) = @_;	2079	my ($self) = @_;
1494		2080
1495	local $self->{deny_reset} = 1; # loading can take a long time	2081	local $self->{deny_reset} = 1; # loading can take a long time
1496		2082
1497	my $path = $self->{path};	2083	my $path = $self->{path};
1498		2084
1499	{	2085	{
1500	my $guard = cf::lock_acquire "map_load:$path";	2086	my $guard = cf::lock_acquire "map_data:$path";
1501		2087
		2088	return unless $self->valid;
1502	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1503		2090
1504	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1505		2092
1506	$self->alloc;	2093	$self->alloc;
1507		2094
1508	$self->pre_load;	2095	$self->pre_load;
1509	Coro::cede;	2096	cf::cede_to_tick;
1510		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
1511	$self->_load_objects ($self->{load_path}, 1)	2100	$self->_load_objects ($f)
1512	or return;	2101	or return;
1513		2102
1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1515	if delete $self->{load_original};	2104	if delete $self->{load_original};
1516		2105
1517	if (my $uniq = $self->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1518	utf8::encode $uniq;	2107	utf8::encode $uniq;
1519	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1520	$self->clear_unique_items;	2110	$self->clear_unique_items;
1521	$self->_load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1522	}	2114	}
1523	}	2115	}
1524		2116
1525	Coro::cede;	2117	$f->resolve_delayed_derefs;
		2118
		2119	cf::cede_to_tick;
1526	# now do the right thing for maps	2120	# now do the right thing for maps
1527	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1528	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1529	unless $self->difficulty;	2123	unless $self->difficulty;
1530	Coro::cede;	2124	cf::cede_to_tick;
1531		2125
1532	unless ($self->{deny_activate}) {	2126	unless ($self->{deny_activate}) {
1533	$self->decay_objects;	2127	$self->decay_objects;
1534	$self->fix_auto_apply;	2128	$self->fix_auto_apply;
1535	$self->update_buttons;	2129	$self->update_buttons;
1536	Coro::cede;	2130	cf::cede_to_tick;
1537	$self->set_darkness_map;
1538	Coro::cede;
1539	$self->activate;	2131	$self->activate;
1540	}	2132	}
1541		2133
		2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
		2136
1542	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
1543	}	2138	}
1544		2139
1545	$self->post_load;	2140	$self->post_load;
1546	}	2141	}
1547		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
1548	sub customise_for {	2146	sub customise_for {
1549	my ($self, $ob) = @_;	2147	my ($self, $ob) = @_;
1550		2148
1551	return find "~" . $ob->name . "/" . $self->{path}	2149	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	2150	if $self->per_player;
1553		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
1554	$self	2155	$self
1555	}	2156	}
1556		2157
1557	# find and load all maps in the 3x3 area around a map	2158	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	2159	sub load_neighbours {
1559	my ($map) = @_;	2160	my ($map) = @_;
1560		2161
1561	my @diag; # diagonal neighbours	2162	my @neigh; # diagonal neighbours
1562		2163
1563	for (0 .. 3) {	2164	for (0 .. 3) {
1564	my $neigh = $map->tile_path ($_)	2165	my $neigh = $map->tile_path ($_)
1565	or next;	2166	or next;
1566	$neigh = find $neigh, $map	2167	$neigh = find $neigh, $map
1567	or next;	2168	or next;
1568	$neigh->load;	2169	$neigh->load;
1569		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1572	}	2175	}
1573		2176
1574	for (@diag) {	2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
1575	my $neigh = find @$_	2179	my $neigh = find $path, $origin
1576	or next;	2180	or next;
1577	$neigh->load;	2181	$neigh->load;
1578	}	2182	}
1579	}	2183	}
1580		2184
…		…
1585	}	2189	}
1586		2190
1587	sub do_load_sync {	2191	sub do_load_sync {
1588	my ($map) = @_;	2192	my ($map) = @_;
1589		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1590	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
1591	}	2198	}
1592		2199
1593	our %MAP_PREFETCH;	2200	our %MAP_PREFETCH;
1594	our $MAP_PREFETCHER = undef;	2201	our $MAP_PREFETCHER = undef;
1595		2202
1596	sub find_async {	2203	sub find_async {
1597	my ($path, $origin) = @_;	2204	my ($path, $origin, $load) = @_;
1598		2205
1599	$path = normalise $path, $origin && $origin->{path};	2206	$path = normalise $path, $origin && $origin->{path};
1600		2207
1601	if (my $map = $cf::MAP{$path}) {	2208	if (my $map = $cf::MAP{$path}) {
1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1603	}	2210	}
1604		2211
1605	undef $MAP_PREFETCH{$path};	2212	$MAP_PREFETCH{$path} |= $load;
		2213
1606	$MAP_PREFETCHER ||= cf::async {	2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
1607	while (%MAP_PREFETCH) {	2217	while (%MAP_PREFETCH) {
1608	for my $path (keys %MAP_PREFETCH) {	2218	while (my ($k, $v) = each %MAP_PREFETCH) {
1609	my $map = find $path	2219	if (my $map = find $k) {
1610	or next;
1611	$map->load;	2220	$map->load if $v;
		2221	}
1612		2222
1613	delete $MAP_PREFETCH{$path};	2223	delete $MAP_PREFETCH{$k};
1614	}	2224	}
1615	}	2225	}
1616	undef $MAP_PREFETCHER;	2226	undef $MAP_PREFETCHER;
1617	};	2227	};
1618	$MAP_PREFETCHER->prio (6);	2228	$MAP_PREFETCHER->prio (6);
1619		2229
1620	()	2230	()
1621	}	2231	}
1622		2232
		2233	# common code, used by both ->save and ->swapout
1623	sub save {	2234	sub _save {
1624	my ($self) = @_;	2235	my ($self) = @_;
1625
1626	my $lock = cf::lock_acquire "map_data:" . $self->path;
1627		2236
1628	$self->{last_save} = $cf::RUNTIME;	2237	$self->{last_save} = $cf::RUNTIME;
1629		2238
1630	return unless $self->dirty;	2239	return unless $self->dirty;
1631		2240
…		…
1637	return if $self->{deny_save};	2246	return if $self->{deny_save};
1638		2247
1639	local $self->{last_access} = $self->last_access;#d#	2248	local $self->{last_access} = $self->last_access;#d#
1640		2249
1641	cf::async {	2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
1642	$_->contr->save for $self->players;	2252	$_->contr->save for $self->players;
1643	};	2253	};
		2254
		2255	cf::get_slot 0.02;
1644		2256
1645	if ($uniq) {	2257	if ($uniq) {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1648	} else {	2260	} else {
1649	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1650	}	2262	}
1651	}	2263	}
1652		2264
		2265	sub save {
		2266	my ($self) = @_;
		2267
		2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2269
		2270	$self->_save;
		2271	}
		2272
1653	sub swap_out {	2273	sub swap_out {
1654	my ($self) = @_;	2274	my ($self) = @_;
1655		2275
1656	# save first because save cedes
1657	$self->save;
1658
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1661	return if $self->players;	2280	return if $self->players;
1662	return if $self->in_memory != cf::MAP_IN_MEMORY;
1663	return if $self->{deny_save};
1664		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
1665	$self->clear;	2291	$self->clear;
1666	$self->in_memory (cf::MAP_SWAPPED);
1667	}	2292	}
1668		2293
1669	sub reset_at {	2294	sub reset_at {
1670	my ($self) = @_;	2295	my ($self) = @_;
1671		2296
1672	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1675		2299
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1678		2302
…		…
1689	my ($self) = @_;	2313	my ($self) = @_;
1690		2314
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2316
1693	return if $self->players;	2317	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		2318
1696	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
1697		2320
1698	$self->in_memory (cf::MAP_SWAPPED);	2321	$self->in_memory (cf::MAP_SWAPPED);
1699		2322
1700	# need to save uniques path	2323	# need to save uniques path
1701	unless ($self->{deny_save}) {	2324	unless ($self->{deny_save}) {
…		…
1705	if $uniq;	2328	if $uniq;
1706	}	2329	}
1707		2330
1708	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1709		2332
		2333	$self->deactivate;
		2334	$_->clear_links_to ($self) for values %cf::MAP;
1710	$self->clear;	2335	$self->clear;
1711
1712	$_->clear_links_to ($self) for values %cf::MAP;
1713		2336
1714	$self->unlink_save;	2337	$self->unlink_save;
1715	$self->destroy;	2338	$self->destroy;
1716	}	2339	}
1717		2340
1718	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1719		2342
1720	sub nuke {	2343	sub nuke {
1721	my ($self) = @_;	2344	my ($self) = @_;
1722		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
1723	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1724		2350
1725	$self->unlink_save;	2351	$self->unlink_save;
1726		2352
1727	bless $self, "cf::map";	2353	bless $self, "cf::map::wrap";
1728	delete $self->{deny_reset};	2354	delete $self->{deny_reset};
1729	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1730	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1732		2358
1733	$cf::MAP{$self->path} = $self;	2359	$cf::MAP{$self->path} = $self;
		2360	}
1734		2361
1735	$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	]
1736	}	2399	}
1737		2400
1738	=item cf::map::unique_maps	2401	=item cf::map::unique_maps
1739		2402
1740	Returns an arrayref of paths of all shared maps that have	2403	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2404	instantiated unique items. May block.
1742		2405
1743	=cut	2406	=cut
1744		2407
1745	sub unique_maps() {	2408	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2409	[
1747	or return;	2410	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2411	utf8::decode $_;
1753	next if /\.pst$/;	2412	s/\.map$//; # TODO future compatibility hack
1754	next unless /^$PATH_SEP/o;	2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1755		2414	? ()
1756	push @paths, cf::map::normalise $_;	2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2417	]
1758
1759	\@paths
1760	}	2418	}
1761		2419
1762	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	}
1763		2451
1764	=back	2452	=back
1765		2453
1766	=head3 cf::object	2454	=head3 cf::object
1767		2455
…		…
1771		2459
1772	=over 4	2460	=over 4
1773		2461
1774	=item $ob->inv_recursive	2462	=item $ob->inv_recursive
1775		2463
1776	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.
1777		2466
1778	=cut	2467	=cut
1779		2468
1780	sub inv_recursive_;	2469	sub inv_recursive_;
1781	sub inv_recursive_ {	2470	sub inv_recursive_ {
…		…
1784		2473
1785	sub inv_recursive {	2474	sub inv_recursive {
1786	inv_recursive_ inv $_[0]	2475	inv_recursive_ inv $_[0]
1787	}	2476	}
1788		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
1789	package cf;	2506	package cf;
1790		2507
1791	=back	2508	=back
1792		2509
1793	=head3 cf::object::player	2510	=head3 cf::object::player
…		…
1799	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>
1800	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
1801	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1802		2519
1803	=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	};
1804		2535
1805	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1806	# with dialog boxes.	2537	# with dialog boxes.
1807	#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
1808	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1810		2541
1811	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1812		2543
1813	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1815	} 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 {
1816	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1818	}	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 (@_);
1819	}	2569	}
1820		2570
1821	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1822		2572
1823	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1836		2586
1837	=item $player_object->enter_link	2587	=item $player_object->enter_link
1838		2588
1839	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}>).
1840		2590
1841	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.
1842	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.
1843		2595
1844	Will never block.	2596	Will never block.
1845		2597
1846	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1847		2599
…		…
1867	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1868	my ($self) = @_;	2620	my ($self) = @_;
1869		2621
1870	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1871		2623
		2624	++$self->{_link_recursion};
		2625
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2627
1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1876		2630
1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1878	}	2632	}
1879		2633
1880	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1882		2638
1883	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1884		2640
1885	unless ($map) {	2641	unless ($map) {
1886	# restore original map position	2642	# restore original map position
…		…
1897	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1898	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1899		2655
1900	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1901	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1902	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1903		2659
1904	$map->load;	2660	$map->load;
1905	$map->load_diag;	2661	$map->load_neighbours;
1906		2662
1907	return unless $self->contr->active;	2663	return unless $self->contr->active;
1908	$self->activate_recursive;
1909		2664
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2666	if ($self->enter_map ($map, $x, $y)) {
1912	}	2667	# entering was successful
1913		2668	delete $self->{_link_recursion};
1914	cf::player->attach (	2669	# only activate afterwards, to support waiting in hooks
1915	on_logout => sub {	2670	$self->activate_recursive;
1916	my ($pl) = @_;
1917
1918	# abort map switching before logout
1919	if ($pl->ob->{_link_pos}) {
1920	cf::sync_job {
1921	$pl->ob->leave_link
1922	};
1923	}
1924	},	2671	}
1925	on_login => sub {
1926	my ($pl) = @_;
1927		2672
1928	# try to abort aborted map switching on player login :)	2673	}
1929	# should happen only on crashes
1930	if ($pl->ob->{_link_pos}) {
1931	$pl->ob->enter_link;
1932	(async {
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945		2674
1946	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1947		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
1948	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1949		2689
1950	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1951	my ($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;
1952		2701
1953	$self->enter_link;	2702	$self->enter_link;
1954		2703
1955	(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
1956	my $map = eval {	2726	my $map = eval {
1957	my $map = cf::map::find $path;	2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1958	$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
1959	$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 $@;
1960	} or	2742	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1962		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1964	})->prio (1);	2750	})->prio (1);
1965	}	2751	}
1966		2752
1967	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1968		2754
…		…
1988	}	2774	}
1989		2775
1990	sub prepare_random_map {	2776	sub prepare_random_map {
1991	my ($exit) = @_;	2777	my ($exit) = @_;
1992		2778
1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1994
1995	# all this does is basically replace the /! path by	2779	# all this does is basically replace the /! path by
1996	# a new random map path (?random/...) with a seed	2780	# a new random map path (?random/...) with a seed
1997	# that depends on the exit object	2781	# that depends on the exit object
1998		2782
1999	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
…		…
2001	if ($exit->map) {	2785	if ($exit->map) {
2002	$rmp->{region} = $exit->region->name;	2786	$rmp->{region} = $exit->region->name;
2003	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
2004	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
2005	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
2006	}	2792	}
2007		2793
2008	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
2009		2795
2010	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2011	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
2012	my $meta = "$RANDOMDIR/$md5.meta";	2798	my $meta = "$RANDOMDIR/$md5.meta";
2013		2799
2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2015	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
2016	undef $fh;	2802	undef $fh;
2017	aio_rename "$meta~", $meta;	2803	aio_rename "$meta~", $meta;
2018		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
2019	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
2020	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
2021	}	2811	}
2022	}	2812	}
2023		2813
2024	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
2025	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
2026		2816
2027	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
2028		2818
2029	if ($exit->slaying eq "/!") {
2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
2031	# the problem is that $exit might not survive long enough
2032	# so it needs to be done right now, right here
2033	cf::sync_job { prepare_random_map $exit };
2034	}
2035
2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2037	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;
2039
2040	$self->enter_link;	2819	$self->enter_link;
2041		2820
2042	(async {	2821	(async {
2043	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
2044	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
2045	$self->goto ($slaying, $hp, $sp);	2839	$self->goto ($map, $x, $y);
2046		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
2047	1;	2845	1
2048	}) {	2846	}) {
2049	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
2050	. "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. "
2051	. "Please report this to the dungeon master!",	2849	. "Please report this to the dungeon master!",
2052	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
2053		2851
2054	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
…		…
2073		2871
2074	utf8::encode $text;	2872	utf8::encode $text;
2075	$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);
2076	}	2874	}
2077		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
2078	=item $client->ext_event ($type, %msg)	3063	=item $client->ext_msg ($type, @msg)
2079		3064
2080	Sends an exti event to the client.	3065	Sends an ext event to the client.
2081		3066
2082	=cut	3067	=cut
2083		3068
2084	sub cf::client::ext_event($$%) {	3069	sub cf::client::ext_msg($$@) {
2085	my ($self, $type, %msg) = @_;	3070	my ($self, $type, @msg) = @_;
2086		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
2087	$msg{msgtype} = "event_$type";	3075	push @msg, msgtype => "event_$type";
2088	$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	}
2089	}	3096	}
2090		3097
2091	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
2092		3099
2093	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
2094	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>,
2095	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>.
2096		3103
2097	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
2098	reliable at some point in the future.	3105	become reliable at some point in the future.
2099		3106
2100	=cut	3107	=cut
2101		3108
2102	sub cf::client::query {	3109	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	3118	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		3120
2114	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
2116	}	3125	}
2117		3126
2118	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	},
2119	on_reply => sub {	3133	on_reply => sub {
2120	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
2121		3135
2122	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
2123	# get handled first	3137	# get handled first
…		…
2135	} else {	3149	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	3151	}
2138	}	3152	}
2139	},	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	},
2140	);	3180	);
2141		3181
2142	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
2143		3183
2144	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
2160		3200
2161	$coro	3201	$coro
2162	}	3202	}
2163		3203
2164	cf::client->attach (	3204	cf::client->attach (
2165	on_destroy => sub {	3205	on_client_destroy => sub {
2166	my ($ns) = @_;	3206	my ($ns) = @_;
2167		3207
2168	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2169	},	3209	},
2170	);	3210	);
…		…
2185	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
2186	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
2187		3227
2188	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
2189		3229
2190	$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	));
2191		3235
2192	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
2193		3237
2194	=pod	3238	=pod
2195		3239
2196	The following functions and methods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
2197		3241
2198	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
2199	cf::object::player player	3247	cf::object::player
2200	cf::player peaceful	3248	player
2201	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
2202		3255
2203	=cut	3256	=cut
2204		3257
2205	for (	3258	for (
2206	["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)],
2207	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
2209	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
2210	) {	3265	) {
2211	no strict 'refs';	3266	no strict 'refs';
2212	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
2213	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2231		3286
2232	my $qcode = $code;	3287	my $qcode = $code;
2233	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2234	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
2235		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
2236	local $_;	3294	local $_;
2237	local @safe::cf::_safe_eval_args = values %vars;
2238		3295
2239	my $eval =	3296	my $eval =
2240	"do {\n"	3297	"do {\n"
2241	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2242	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
2243	. $code	3300	. $code
2244	. "\n}"	3301	. "\n}"
2245	;	3302	;
2246		3303
		3304	if ($CFG{safe_eval}) {
2247	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
2248	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2249	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	}
2250		3313
2251	if ($@) {	3314	if ($@) {
2252	warn "$@";	3315	warn "$@";
2253	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
2254	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2273	=cut	3336	=cut
2274		3337
2275	sub register_script_function {	3338	sub register_script_function {
2276	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
2277		3340
2278	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
2279	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
2280	}	3343	}
2281		3344
2282	=back	3345	=back
2283		3346
2284	=cut	3347	=cut
2285
2286	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459		3348
2460	#############################################################################	3349	#############################################################################
2461	# the server's init and main functions	3350	# the server's init and main functions
2462		3351
2463	sub load_facedata($) {	3352	sub load_facedata($) {
2464	my ($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;
2465		3360
2466	warn "loading facedata from $path\n";	3361	warn "loading facedata from $path\n";
2467		3362
2468	my $facedata;	3363	my $facedata;
2469	0 < aio_load $path, $facedata	3364	0 < aio_load $path, $facedata
…		…
2472	$facedata = Coro::Storable::thaw $facedata;	3367	$facedata = Coro::Storable::thaw $facedata;
2473		3368
2474	$facedata->{version} == 2	3369	$facedata->{version} == 2
2475	or cf::cleanup "$path: version mismatch, cannot proceed.";	3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2476		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
2477	{	3381	{
2478	my $faces = $facedata->{faceinfo};	3382	my $faces = $facedata->{faceinfo};
2479		3383
2480	while (my ($face, $info) = each %$faces) {	3384	while (my ($face, $info) = each %$faces) {
2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3386
2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3387	cf::face::set_visibility $idx, $info->{visibility};
		3388	cf::face::set_magicmap $idx, $info->{magicmap};
2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2485	Coro::cede;	3391
		3392	cf::cede_to_tick;
2486	}	3393	}
2487		3394
2488	while (my ($face, $info) = each %$faces) {	3395	while (my ($face, $info) = each %$faces) {
2489	next unless $info->{smooth};	3396	next unless $info->{smooth};
		3397
2490	my $idx = cf::face::find $face	3398	my $idx = cf::face::find $face
2491	or next;	3399	or next;
		3400
2492	if (my $smooth = cf::face::find $info->{smooth}) {	3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2494	} else {	3404	} else {
2495	warn "smooth face '$info->{smooth}' not found for face '$face'";	3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
2496	}	3406	}
2497	Coro::cede;	3407
		3408	cf::cede_to_tick;
2498	}	3409	}
2499	}	3410	}
2500		3411
2501	{	3412	{
2502	my $anims = $facedata->{animinfo};	3413	my $anims = $facedata->{animinfo};
2503		3414
2504	while (my ($anim, $info) = each %$anims) {	3415	while (my ($anim, $info) = each %$anims) {
2505	cf::anim::set $anim, $info->{frames}, $info->{facings};	3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
2506	Coro::cede;	3417	cf::cede_to_tick;
2507	}	3418	}
2508		3419
2509	cf::anim::invalidate_all; # d'oh	3420	cf::anim::invalidate_all; # d'oh
2510	}	3421	}
2511		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} = $info; # unused
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
2512	1	3442	1
2513	}	3443	}
2514		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
2515	sub reload_regions {	3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
2516	load_resource_file "$MAPDIR/regions"	3468	load_resource_file "$MAPDIR/regions"
2517	or die "unable to load regions file\n";	3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
2518	}	3475	}
2519		3476
2520	sub reload_facedata {	3477	sub reload_facedata {
2521	load_facedata "$DATADIR/facedata"	3478	load_facedata "$DATADIR/facedata"
2522	or die "unable to load facedata\n";	3479	or die "unable to load facedata\n";
…		…
2530	sub reload_treasures {	3487	sub reload_treasures {
2531	load_resource_file "$DATADIR/treasures"	3488	load_resource_file "$DATADIR/treasures"
2532	or die "unable to load treasurelists\n";	3489	or die "unable to load treasurelists\n";
2533	}	3490	}
2534		3491
		3492	sub reload_sound {
		3493	warn "loading sound config from $DATADIR/sound\n";
		3494
		3495	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3496	or die "$DATADIR/sound $!";
		3497
		3498	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3499
		3500	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3501	my $sound = $soundconf->{compat}[$_]
		3502	or next;
		3503
		3504	my $face = cf::face::find "sound/$sound->[1]";
		3505	cf::sound::set $sound->[0] => $face;
		3506	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3507	}
		3508
		3509	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3510	my $face = cf::face::find "sound/$v";
		3511	cf::sound::set $k => $face;
		3512	}
		3513	}
		3514
2535	sub reload_resources {	3515	sub reload_resources {
2536	warn "reloading resource files...\n";	3516	warn "reloading resource files...\n";
2537		3517
		3518	reload_facedata;
		3519	reload_sound;
		3520	reload_archetypes;
2538	reload_regions;	3521	reload_regions;
2539	reload_facedata;
2540	reload_archetypes;
2541	reload_treasures;	3522	reload_treasures;
2542		3523
2543	warn "finished reloading resource files\n";	3524	warn "finished reloading resource files\n";
2544	}	3525	}
2545		3526
2546	sub init {	3527	sub reload_config {
2547	reload_resources;	3528	warn "reloading config file...\n";
2548	}
2549		3529
2550	sub cfg_load {
2551	open my $fh, "<:utf8", "$CONFDIR/config"	3530	open my $fh, "<:utf8", "$CONFDIR/config"
2552	or return;	3531	or return;
2553		3532
2554	local $/;	3533	local $/;
2555	*CFG = YAML::Syck::Load <$fh>;	3534	*CFG = YAML::XS::Load scalar <$fh>;
2556		3535
2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3536	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2558		3537
2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3538	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3539	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2561		3540
2562	if (exists $CFG{mlockall}) {	3541	if (exists $CFG{mlockall}) {
…		…
2564	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3543	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2565	and die "WARNING: m(un)lockall failed: $!\n";	3544	and die "WARNING: m(un)lockall failed: $!\n";
2566	};	3545	};
2567	warn $@ if $@;	3546	warn $@ if $@;
2568	}	3547	}
		3548
		3549	warn "finished reloading resource files\n";
		3550	}
		3551
		3552	sub pidfile() {
		3553	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3554	or die "$PIDFILE: $!";
		3555	flock $fh, &Fcntl::LOCK_EX
		3556	or die "$PIDFILE: flock: $!";
		3557	$fh
		3558	}
		3559
		3560	# make sure only one server instance is running at any one time
		3561	sub atomic {
		3562	my $fh = pidfile;
		3563
		3564	my $pid = <$fh>;
		3565	kill 9, $pid if $pid > 0;
		3566
		3567	seek $fh, 0, 0;
		3568	print $fh $$;
		3569	}
		3570
		3571	sub main_loop {
		3572	warn "EV::loop starting\n";
		3573	if (1) {
		3574	EV::loop;
		3575	}
		3576	warn "EV::loop returned\n";
		3577	goto &main_loop unless $REALLY_UNLOOP;
2569	}	3578	}
2570		3579
2571	sub main {	3580	sub main {
		3581	cf::init_globals; # initialise logging
		3582
		3583	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3584	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3585	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3586	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3587
		3588	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3589
2572	# we must not ever block the main coroutine	3590	# we must not ever block the main coroutine
2573	local $Coro::idle = sub {	3591	local $Coro::idle = sub {
2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3592	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2575	(async {	3593	(async {
2576	Event::one_event;	3594	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3595	EV::loop EV::LOOP_ONESHOT;
2577	})->prio (Coro::PRIO_MAX);	3596	})->prio (Coro::PRIO_MAX);
2578	};	3597	};
2579		3598
2580	cfg_load;	3599	evthread_start IO::AIO::poll_fileno;
		3600
		3601	cf::sync_job {
		3602	cf::init_experience;
		3603	cf::init_anim;
		3604	cf::init_attackmess;
		3605	cf::init_dynamic;
		3606
		3607	cf::load_settings;
		3608	cf::load_materials;
		3609
		3610	reload_resources;
		3611	reload_config;
2581	db_init;	3612	db_init;
		3613
		3614	cf::init_uuid;
		3615	cf::init_signals;
		3616	cf::init_skills;
		3617
		3618	cf::init_beforeplay;
		3619
		3620	atomic;
		3621
2582	load_extensions;	3622	load_extensions;
2583		3623
2584	$TICK_WATCHER->start;	3624	utime time, time, $RUNTIMEFILE;
2585	Event::loop;	3625
		3626	# no (long-running) fork's whatsoever before this point(!)
		3627	use POSIX ();
		3628	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3629
		3630	(pop @POST_INIT)->(0) while @POST_INIT;
		3631	};
		3632
		3633	cf::object::thawer::errors_are_fatal 0;
		3634	warn "parse errors in files are no longer fatal from this point on.\n";
		3635
		3636	main_loop;
2586	}	3637	}
2587		3638
2588	#############################################################################	3639	#############################################################################
2589	# initialisation and cleanup	3640	# initialisation and cleanup
2590		3641
2591	# install some emergency cleanup handlers	3642	# install some emergency cleanup handlers
2592	BEGIN {	3643	BEGIN {
		3644	our %SIGWATCHER = ();
2593	for my $signal (qw(INT HUP TERM)) {	3645	for my $signal (qw(INT HUP TERM)) {
2594	Event->signal (	3646	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2595	reentrant => 0,
2596	data => WF_AUTOCANCEL,
2597	signal => $signal,
2598	prio => 0,
2599	cb => sub {
2600	cf::cleanup "SIG$signal";	3647	cf::cleanup "SIG$signal";
2601	},
2602	);	3648	};
		3649	}
		3650	}
		3651
		3652	sub write_runtime_sync {
		3653	my $t0 = AE::time;
		3654
		3655	# first touch the runtime file to show we are still running:
		3656	# the fsync below can take a very very long time.
		3657
		3658	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3659
		3660	my $guard = cf::lock_acquire "write_runtime";
		3661
		3662	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3663	or return;
		3664
		3665	my $value = $cf::RUNTIME + 90 + 10;
		3666	# 10 is the runtime save interval, for a monotonic clock
		3667	# 60 allows for the watchdog to kill the server.
		3668
		3669	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3670	and return;
		3671
		3672	# always fsync - this file is important
		3673	aio_fsync $fh
		3674	and return;
		3675
		3676	# touch it again to show we are up-to-date
		3677	aio_utime $fh, undef, undef;
		3678
		3679	close $fh
		3680	or return;
		3681
		3682	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3683	and return;
		3684
		3685	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3686
2603	}	3687	1
		3688	}
		3689
		3690	our $uuid_lock;
		3691	our $uuid_skip;
		3692
		3693	sub write_uuid_sync($) {
		3694	$uuid_skip ||= $_[0];
		3695
		3696	return if $uuid_lock;
		3697	local $uuid_lock = 1;
		3698
		3699	my $uuid = "$LOCALDIR/uuid";
		3700
		3701	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3702	or return;
		3703
		3704	my $value = uuid_seq uuid_cur;
		3705
		3706	unless ($value) {
		3707	warn "cowardly refusing to write zero uuid value!\n";
		3708	return;
		3709	}
		3710
		3711	my $value = uuid_str $value + $uuid_skip;
		3712	$uuid_skip = 0;
		3713
		3714	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3715	and return;
		3716
		3717	# always fsync - this file is important
		3718	aio_fsync $fh
		3719	and return;
		3720
		3721	close $fh
		3722	or return;
		3723
		3724	aio_rename "$uuid~", $uuid
		3725	and return;
		3726
		3727	warn "uuid file written ($value).\n";
		3728
		3729	1
		3730
		3731	}
		3732
		3733	sub write_uuid($$) {
		3734	my ($skip, $sync) = @_;
		3735
		3736	$sync ? write_uuid_sync $skip
		3737	: async { write_uuid_sync $skip };
2604	}	3738	}
2605		3739
2606	sub emergency_save() {	3740	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	3741	my $freeze_guard = cf::freeze_mainloop;
2608		3742
2609	warn "enter emergency perl save\n";	3743	warn "emergency_perl_save: enter\n";
2610		3744
2611	cf::sync_job {	3745	cf::sync_job {
		3746	# this is a trade-off: we want to be very quick here, so
		3747	# save all maps without fsync, and later call a global sync
		3748	# (which in turn might be very very slow)
		3749	local $USE_FSYNC = 0;
		3750
2612	# use a peculiar iteration method to avoid tripping on perl	3751	# use a peculiar iteration method to avoid tripping on perl
2613	# refcount bugs in for. also avoids problems with players	3752	# refcount bugs in for. also avoids problems with players
2614	# and maps saved/destroyed asynchronously.	3753	# and maps saved/destroyed asynchronously.
2615	warn "begin emergency player save\n";	3754	warn "emergency_perl_save: begin player save\n";
2616	for my $login (keys %cf::PLAYER) {	3755	for my $login (keys %cf::PLAYER) {
2617	my $pl = $cf::PLAYER{$login} or next;	3756	my $pl = $cf::PLAYER{$login} or next;
2618	$pl->valid or next;	3757	$pl->valid or next;
		3758	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2619	$pl->save;	3759	$pl->save;
2620	}	3760	}
2621	warn "end emergency player save\n";	3761	warn "emergency_perl_save: end player save\n";
2622		3762
2623	warn "begin emergency map save\n";	3763	warn "emergency_perl_save: begin map save\n";
2624	for my $path (keys %cf::MAP) {	3764	for my $path (keys %cf::MAP) {
2625	my $map = $cf::MAP{$path} or next;	3765	my $map = $cf::MAP{$path} or next;
2626	$map->valid or next;	3766	$map->valid or next;
2627	$map->save;	3767	$map->save;
2628	}	3768	}
2629	warn "end emergency map save\n";	3769	warn "emergency_perl_save: end map save\n";
2630		3770
2631	warn "begin emergency database checkpoint\n";	3771	warn "emergency_perl_save: begin database checkpoint\n";
2632	BDB::db_env_txn_checkpoint $DB_ENV;	3772	BDB::db_env_txn_checkpoint $DB_ENV;
2633	warn "end emergency database checkpoint\n";	3773	warn "emergency_perl_save: end database checkpoint\n";
		3774
		3775	warn "emergency_perl_save: begin write uuid\n";
		3776	write_uuid_sync 1;
		3777	warn "emergency_perl_save: end write uuid\n";
2634	};	3778	};
2635		3779
		3780	warn "emergency_perl_save: starting sync()\n";
		3781	IO::AIO::aio_sync sub {
		3782	warn "emergency_perl_save: finished sync()\n";
		3783	};
		3784
2636	warn "leave emergency perl save\n";	3785	warn "emergency_perl_save: leave\n";
2637	}	3786	}
2638		3787
2639	sub post_cleanup {	3788	sub post_cleanup {
2640	my ($make_core) = @_;	3789	my ($make_core) = @_;
2641		3790
2642	warn Carp::longmess "post_cleanup backtrace"	3791	warn Carp::longmess "post_cleanup backtrace"
2643	if $make_core;	3792	if $make_core;
		3793
		3794	my $fh = pidfile;
		3795	unlink $PIDFILE if <$fh> == $$;
		3796	}
		3797
		3798	# a safer delete_package, copied from Symbol
		3799	sub clear_package($) {
		3800	my $pkg = shift;
		3801
		3802	# expand to full symbol table name if needed
		3803	unless ($pkg =~ /^main::.*::$/) {
		3804	$pkg = "main$pkg" if $pkg =~ /^::/;
		3805	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3806	$pkg .= '::' unless $pkg =~ /::$/;
		3807	}
		3808
		3809	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3810	my $stem_symtab = *{$stem}{HASH};
		3811
		3812	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3813	or return;
		3814
		3815	# clear all symbols
		3816	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3817	for my $name (keys %$leaf_symtab) {
		3818	_gv_clear *{"$pkg$name"};
		3819	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3820	}
2644	}	3821	}
2645		3822
2646	sub do_reload_perl() {	3823	sub do_reload_perl() {
2647	# can/must only be called in main	3824	# can/must only be called in main
2648	if ($Coro::current != $Coro::main) {	3825	if (in_main) {
2649	warn "can only reload from main coroutine";	3826	warn "can only reload from main coroutine";
2650	return;	3827	return;
2651	}	3828	}
2652		3829
		3830	return if $RELOAD++;
		3831
		3832	my $t1 = AE::time;
		3833
		3834	while ($RELOAD) {
2653	warn "reloading...";	3835	warn "reloading...";
2654		3836
2655	warn "entering sync_job";	3837	warn "entering sync_job";
2656		3838
2657	cf::sync_job {	3839	cf::sync_job {
2658	cf::write_runtime; # external watchdog should not bark	3840	cf::write_runtime_sync; # external watchdog should not bark
2659	cf::emergency_save;	3841	cf::emergency_save;
2660	cf::write_runtime; # external watchdog should not bark	3842	cf::write_runtime_sync; # external watchdog should not bark
2661		3843
2662	warn "syncing database to disk";	3844	warn "syncing database to disk";
2663	BDB::db_env_txn_checkpoint $DB_ENV;	3845	BDB::db_env_txn_checkpoint $DB_ENV;
2664		3846
2665	# if anything goes wrong in here, we should simply crash as we already saved	3847	# if anything goes wrong in here, we should simply crash as we already saved
2666		3848
2667	warn "cancelling all WF_AUTOCANCEL watchers";
2668	for (Event::all_watchers) {
2669	$_->cancel if $_->data & WF_AUTOCANCEL;
2670	}
2671
2672	warn "flushing outstanding aio requests";	3849	warn "flushing outstanding aio requests";
2673	for (;;) {
2674	BDB::flush;
2675	IO::AIO::flush;
2676	Coro::cede;
2677	last unless IO::AIO::nreqs || BDB::nreqs;	3850	while (IO::AIO::nreqs || BDB::nreqs) {
2678	warn "iterate...";	3851	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2679	}
2680
2681	++$RELOAD;
2682
2683	warn "cancelling all extension coros";
2684	$_->cancel for values %EXT_CORO;
2685	%EXT_CORO = ();
2686
2687	warn "removing commands";
2688	%COMMAND = ();
2689
2690	warn "removing ext commands";
2691	%EXTCMD = ();
2692
2693	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";
2696
2697	if (my $cb = $pkg->can ("unload")) {
2698	eval {
2699	$cb->($pkg);
2700	1
2701	} or warn "$pkg unloaded, but with errors: $@";
2702	}	3852	}
2703		3853
2704	warn "... nuking $pkg";	3854	warn "cancelling all extension coros";
2705	Symbol::delete_package $pkg;	3855	$_->cancel for values %EXT_CORO;
2706	}	3856	%EXT_CORO = ();
2707		3857
2708	warn "unloading all perl modules loaded from $LIBDIR";	3858	warn "removing commands";
2709	while (my ($k, $v) = each %INC) {	3859	%COMMAND = ();
2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2711		3860
		3861	warn "removing ext/exti commands";
		3862	%EXTCMD = ();
		3863	%EXTICMD = ();
		3864
		3865	warn "unloading/nuking all extensions";
		3866	for my $pkg (@EXTS) {
2712	warn "... unloading $k";	3867	warn "... unloading $pkg";
2713	delete $INC{$k};
2714		3868
2715	$k =~ s/\.pm$//;
2716	$k =~ s/\//::/g;
2717
2718	if (my $cb = $k->can ("unload_module")) {	3869	if (my $cb = $pkg->can ("unload")) {
		3870	eval {
2719	$cb->();	3871	$cb->($pkg);
		3872	1
		3873	} or warn "$pkg unloaded, but with errors: $@";
		3874	}
		3875
		3876	warn "... clearing $pkg";
		3877	clear_package $pkg;
2720	}	3878	}
2721		3879
2722	Symbol::delete_package $k;	3880	warn "unloading all perl modules loaded from $LIBDIR";
		3881	while (my ($k, $v) = each %INC) {
		3882	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3883
		3884	warn "... unloading $k";
		3885	delete $INC{$k};
		3886
		3887	$k =~ s/\.pm$//;
		3888	$k =~ s/\//::/g;
		3889
		3890	if (my $cb = $k->can ("unload_module")) {
		3891	$cb->();
		3892	}
		3893
		3894	clear_package $k;
2723	}	3895	}
2724		3896
2725	warn "getting rid of safe::, as good as possible";	3897	warn "getting rid of safe::, as good as possible";
2726	Symbol::delete_package "safe::$_"	3898	clear_package "safe::$_"
2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3899	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2728		3900
2729	warn "unloading cf.pm \"a bit\"";	3901	warn "unloading cf.pm \"a bit\"";
2730	delete $INC{"cf.pm"};	3902	delete $INC{"cf.pm"};
2731	delete $INC{"cf/pod.pm"};	3903	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2732		3904
2733	# don't, removes xs symbols, too,	3905	# don't, removes xs symbols, too,
2734	# and global variables created in xs	3906	# and global variables created in xs
2735	#Symbol::delete_package __PACKAGE__;	3907	#clear_package __PACKAGE__;
2736		3908
2737	warn "unload completed, starting to reload now";	3909	warn "unload completed, starting to reload now";
2738		3910
2739	warn "reloading cf.pm";	3911	warn "reloading cf.pm";
2740	require cf;	3912	require cf;
2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3913	cf::_connect_to_perl_1;
2742		3914
2743	warn "loading config and database again";	3915	warn "loading config and database again";
2744	cf::cfg_load;	3916	cf::reload_config;
2745		3917
2746	warn "loading extensions";	3918	warn "loading extensions";
2747	cf::load_extensions;	3919	cf::load_extensions;
2748		3920
		3921	if ($REATTACH_ON_RELOAD) {
2749	warn "reattaching attachments to objects/players";	3922	warn "reattaching attachments to objects/players";
2750	_global_reattach; # objects, sockets	3923	_global_reattach; # objects, sockets
2751	warn "reattaching attachments to maps";	3924	warn "reattaching attachments to maps";
2752	reattach $_ for values %MAP;	3925	reattach $_ for values %MAP;
2753	warn "reattaching attachments to players";	3926	warn "reattaching attachments to players";
2754	reattach $_ for values %PLAYER;	3927	reattach $_ for values %PLAYER;
		3928	}
2755		3929
		3930	warn "running post_init jobs";
		3931	(pop @POST_INIT)->(1) while @POST_INIT;
		3932
2756	warn "leaving sync_job";	3933	warn "leaving sync_job";
2757		3934
2758	1	3935	1
2759	} or do {	3936	} or do {
2760	warn $@;	3937	warn $@;
2761	warn "error while reloading, exiting.";	3938	cf::cleanup "error while reloading, exiting.";
2762	exit 1;
2763	};	3939	};
2764		3940
2765	warn "reloaded";	3941	warn "reloaded";
		3942	--$RELOAD;
		3943	}
		3944
		3945	$t1 = AE::time - $t1;
		3946	warn "reload completed in ${t1}s\n";
2766	};	3947	};
2767		3948
2768	our $RELOAD_WATCHER; # used only during reload	3949	our $RELOAD_WATCHER; # used only during reload
2769		3950
2770	sub reload_perl() {	3951	sub reload_perl() {
2771	# doing reload synchronously and two reloads happen back-to-back,	3952	# doing reload synchronously and two reloads happen back-to-back,
2772	# coro crashes during coro_state_free->destroy here.	3953	# coro crashes during coro_state_free->destroy here.
2773		3954
2774	$RELOAD_WATCHER ||= Event->timer (	3955	$RELOAD_WATCHER ||= cf::async {
2775	reentrant => 0,	3956	Coro::AIO::aio_wait cache_extensions;
2776	after => 0,	3957
2777	data => WF_AUTOCANCEL,	3958	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2778	cb => sub {
2779	do_reload_perl;	3959	do_reload_perl;
2780	undef $RELOAD_WATCHER;	3960	undef $RELOAD_WATCHER;
2781	},	3961	};
2782	);	3962	};
2783	}	3963	}
2784		3964
2785	register_command "reload" => sub {	3965	register_command "reload" => sub {
2786	my ($who, $arg) = @_;	3966	my ($who, $arg) = @_;
2787		3967
2788	if ($who->flag (FLAG_WIZ)) {	3968	if ($who->flag (FLAG_WIZ)) {
2789	$who->message ("reloading server.");	3969	$who->message ("reloading server.");
		3970	async {
		3971	$Coro::current->{desc} = "perl_reload";
2790	async { reload_perl };	3972	reload_perl;
		3973	};
2791	}	3974	}
2792	};	3975	};
2793		3976
2794	unshift @INC, $LIBDIR;	3977	unshift @INC, $LIBDIR;
2795		3978
…		…
2797		3980
2798	our @WAIT_FOR_TICK;	3981	our @WAIT_FOR_TICK;
2799	our @WAIT_FOR_TICK_BEGIN;	3982	our @WAIT_FOR_TICK_BEGIN;
2800		3983
2801	sub wait_for_tick {	3984	sub wait_for_tick {
2802	return unless $TICK_WATCHER->is_active;
2803	return if $Coro::current == $Coro::main;	3985	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2804		3986
2805	my $signal = new Coro::Signal;	3987	my $signal = new Coro::Signal;
2806	push @WAIT_FOR_TICK, $signal;	3988	push @WAIT_FOR_TICK, $signal;
2807	$signal->wait;	3989	$signal->wait;
2808	}	3990	}
2809		3991
2810	sub wait_for_tick_begin {	3992	sub wait_for_tick_begin {
2811	return unless $TICK_WATCHER->is_active;
2812	return if $Coro::current == $Coro::main;	3993	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2813		3994
2814	my $signal = new Coro::Signal;	3995	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3996	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3997	$signal->wait;
2817	}	3998	}
2818		3999
2819	$TICK_WATCHER = Event->timer (	4000	sub tick {
2820	reentrant => 0,
2821	parked => 1,
2822	prio => 0,
2823	at => $NEXT_TICK || $TICK,
2824	data => WF_AUTOCANCEL,
2825	cb => sub {
2826	if ($Coro::current != $Coro::main) {	4001	if ($Coro::current != $Coro::main) {
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4002	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	4003	unless ++$bug_warning > 10;
2829	return;	4004	return;
2830	}	4005	}
2831		4006
2832	$NOW = Event::time;
2833
2834	cf::server_tick; # one server iteration	4007	cf::server_tick; # one server iteration
2835		4008
2836	$RUNTIME += $TICK;	4009	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2837	$NEXT_TICK += $TICK;
2838		4010
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4011	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2840	$NEXT_RUNTIME_WRITE = $NOW + 10;	4012	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2841	Coro::async_pool {	4013	Coro::async_pool {
		4014	$Coro::current->{desc} = "runtime saver";
2842	write_runtime	4015	write_runtime_sync
2843	or warn "ERROR: unable to write runtime file: $!";	4016	or warn "ERROR: unable to write runtime file: $!";
2844	};
2845	}	4017	};
		4018	}
2846		4019
2847	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#
2849
2850	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2852
2853	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;
2855
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4020	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2857	$sig->send;	4021	$sig->send;
2858	}	4022	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {	4023	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;	4024	$sig->send;
2861	}
2862
2863	_post_tick;
2864	},	4025	}
2865	);	4026
		4027	$LOAD = ($NOW - $TICK_START) / $TICK;
		4028	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4029
		4030	if (0) {
		4031	if ($NEXT_TICK) {
		4032	my $jitter = $TICK_START - $NEXT_TICK;
		4033	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4034	warn "jitter $JITTER\n";#d#
		4035	}
		4036	}
		4037	}
2866		4038
2867	{	4039	{
2868	BDB::max_poll_time $TICK * 0.1;	4040	# configure BDB
2869	$BDB_POLL_WATCHER = Event->io (	4041
2870	reentrant => 0,
2871	fd => BDB::poll_fileno,
2872	poll => 'r',
2873	prio => 0,
2874	data => WF_AUTOCANCEL,
2875	cb => \&BDB::poll_cb,
2876	);
2877	BDB::min_parallel 8;	4042	BDB::min_parallel 16;
2878		4043	BDB::max_poll_reqs $TICK * 0.1;
2879	BDB::set_sync_prepare {	4044	$AnyEvent::BDB::WATCHER->priority (1);
2880	my $status;
2881	my $current = $Coro::current;
2882	(
2883	sub {
2884	$status = $!;
2885	$current->ready; undef $current;
2886	},
2887	sub {
2888	Coro::schedule while defined $current;
2889	$! = $status;
2890	},
2891	)
2892	};
2893		4045
2894	unless ($DB_ENV) {	4046	unless ($DB_ENV) {
2895	$DB_ENV = BDB::db_env_create;	4047	$DB_ENV = BDB::db_env_create;
		4048	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4049	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4050	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4051	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4052	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2896		4053
2897	cf::sync_job {	4054	cf::sync_job {
2898	eval {	4055	eval {
2899	BDB::db_env_open	4056	BDB::db_env_open
2900	$DB_ENV,	4057	$DB_ENV,
…		…
2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4059	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4060	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2904	0666;	4061	0666;
2905		4062
2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4063	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2907
2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2909	$DB_ENV->set_lk_detect;
2910	};	4064	};
2911		4065
2912	cf::cleanup "db_env_open(db): $@" if $@;	4066	cf::cleanup "db_env_open(db): $@" if $@;
2913	};	4067	};
2914	}	4068	}
		4069
		4070	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4071	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4072	};
		4073	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4074	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4075	};
		4076	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4077	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4078	};
2915	}	4079	}
2916		4080
2917	{	4081	{
		4082	# configure IO::AIO
		4083
2918	IO::AIO::min_parallel 8;	4084	IO::AIO::min_parallel 8;
2919
2920	undef $Coro::AIO::WATCHER;
2921	IO::AIO::max_poll_time $TICK * 0.1;	4085	IO::AIO::max_poll_time $TICK * 0.1;
2922	$AIO_POLL_WATCHER = Event->io (	4086	undef $AnyEvent::AIO::WATCHER;
2923	reentrant => 0,
2924	data => WF_AUTOCANCEL,
2925	fd => IO::AIO::poll_fileno,
2926	poll => 'r',
2927	prio => 6,
2928	cb => \&IO::AIO::poll_cb,
2929	);
2930	}	4087	}
2931		4088
2932	my $_log_backtrace;	4089	my $_log_backtrace;
2933		4090
2934	sub _log_backtrace {	4091	sub _log_backtrace {
…		…
2937	$msg =~ s/\n//;	4094	$msg =~ s/\n//;
2938		4095
2939	# limit the # of concurrent backtraces	4096	# limit the # of concurrent backtraces
2940	if ($_log_backtrace < 2) {	4097	if ($_log_backtrace < 2) {
2941	++$_log_backtrace;	4098	++$_log_backtrace;
		4099	my $perl_bt = Carp::longmess $msg;
2942	async {	4100	async {
		4101	$Coro::current->{desc} = "abt $msg";
		4102
2943	my @bt = fork_call {	4103	my @bt = fork_call {
2944	@addr = map { sprintf "%x", $_ } @addr;	4104	@addr = map { sprintf "%x", $_ } @addr;
2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4105	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4106	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2947	or die "addr2line: $!";	4107	or die "addr2line: $!";
…		…
2955	}	4115	}
2956		4116
2957	@funcs	4117	@funcs
2958	};	4118	};
2959		4119
2960	LOG llevInfo, "[ABT] $msg\n";	4120	LOG llevInfo, "[ABT] $perl_bt\n";
		4121	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2961	LOG llevInfo, "[ABT] $_\n" for @bt;	4122	LOG llevInfo, "[ABT] $_\n" for @bt;
2962	--$_log_backtrace;	4123	--$_log_backtrace;
2963	};	4124	};
2964	} else {	4125	} else {
2965	LOG llevInfo, "[ABT] $msg\n";	4126	LOG llevInfo, "[ABT] $msg\n";
2966	LOG llevInfo, "[ABT] [suppressed]\n";	4127	LOG llevInfo, "[ABT] [suppressed]\n";
2967	}	4128	}
2968	}	4129	}
2969		4130
2970	# load additional modules	4131	# load additional modules
2971	use cf::pod;	4132	require "cf/$_.pm" for @EXTRA_MODULES;
		4133	cf::_connect_to_perl_2;
2972		4134
2973	END { cf::emergency_save }	4135	END { cf::emergency_save }
2974		4136
2975	1	4137	1
2976		4138

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