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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs.
Revision 1.545 by root, Thu May 6 22:35:41 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	56	use Fcntl;
29	use YAML::Syck ();	57	use YAML::XS ();
30	use IO::AIO 2.32 ();	58	use IO::AIO ();
31	use Time::HiRes;	59	use Time::HiRes;
32	use Compress::LZF;	60	use Compress::LZF;
		61	use Digest::MD5 ();
		62
		63	AnyEvent::detect;
33		64
34	# configure various modules to our taste	65	# configure various modules to our taste
35	#	66	#
36	$Storable::canonical = 1; # reduce rsync transfers	67	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	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	74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		75
40	$Event::Eval = 1; # no idea why this is required, but it is	76	# strictly for debugging
41		77	$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		78
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
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 incloader);
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
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	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 $REALLY_UNLOOP; # never set to true, please :)
98		153
99	binmode STDOUT;	154	binmode STDOUT;
100	binmode STDERR;	155	binmode STDERR;
101		156
102	# read virtual server time, if available	157	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	159	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
107	}	162	}
		163
		164	eval "sub TICK() { $TICK } 1" or die;
108		165
109	mkdir $_	166	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		168
112	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
113		170
114	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::"} };
115		187
116	#############################################################################	188	#############################################################################
117		189
118	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
119		191
…		…
155		227
156	The raw value load value from the last tick.	228	The raw value load value from the last tick.
157		229
158	=item %cf::CFG	230	=item %cf::CFG
159		231
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	233	from wherever your confdir points to.
162		234
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		236
165	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
166	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
167	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.
168		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
169	=back	253	=back
170		254
171	=cut	255	=cut
172		256
173	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
174	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
175	my $msg = join "", @_;	264	my $msg = join "", @_;
176		265
177	$msg .= "\n"	266	$msg .= "\n"
178	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
179		268
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		270
182	utf8::encode $msg;
183	LOG llevError, $msg;	271	LOG llevWarn, $msg;
184	};	272	};
185	}	273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
186		287
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		295
194	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	297	# within the Safe compartment.
196	for my $pkg (qw(	298	for my $pkg (qw(
197	cf::global cf::attachable	299	cf::global cf::attachable
198	cf::object cf::object::player	300	cf::object cf::object::player
199	cf::client cf::player	301	cf::client cf::player
200	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
201	cf::map cf::party cf::region	304	cf::party cf::region
202	)) {	305	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	307	}
206		308
207	$Event::DIED = sub {	309	$EV::DIED = sub {
208	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
209	};	311	};
		312
		313	#############################################################################
210		314
211	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
212		316
213	=over 4	317	=over 4
214		318
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	338	$d
235	} || "[unable to dump $_[0]: '$@']";	339	} || "[unable to dump $_[0]: '$@']";
236	}	340	}
237		341
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
241		343
242	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
243		345
244	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
245		347
246	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
247		349
		350	=cut
		351
		352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		353
		354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
		356
		357	=item cf::post_init { BLOCK }
		358
		359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		360	but I<before> the server starts ticking again.
		361
		362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
		364
		365	=cut
		366
		367	sub post_init(&) {
		368	push @POST_INIT, shift;
		369	}
		370
248	=item cf::lock_wait $string	371	=item cf::lock_wait $string
249		372
250	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
251		374
252	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
253		376
254	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
256	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
257	returned.	380	returned.
258		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
259	Lock names should begin with a unique identifier (for example, cf::map::find	385	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	386	uses map_find and cf::map::load uses map_load).
261		387
262	=item $locked = cf::lock_active $string	388	=item $locked = cf::lock_active $string
263		389
264	Return true if the lock is currently active, i.e. somebody has locked it.	390	Return true if the lock is currently active, i.e. somebody has locked it.
265		391
266	=cut	392	=cut
267		393
268	our %LOCK;	394	our $LOCKS = new Coro::SemaphoreSet;
269		395
270	sub lock_wait($) {	396	sub lock_wait($) {
271	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	398	}
279		399
280	sub lock_acquire($) {	400	sub lock_acquire($) {
281	my ($key) = @_;	401	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	402	}
293		403
294	sub lock_active($) {	404	sub lock_active($) {
295	my ($key) = @_;	405	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	406	}
299		407
300	sub freeze_mainloop {	408	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	409	tick_inhibit_inc;
302		410
303	my $guard = Coro::guard {	411	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	412	}
		413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
305	};	478	}
306	$TICK_WATCHER->stop;	479	};
307	$guard	480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
308	}	494	}
309		495
310	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
311		497
312	Currently the same as Coro::async_pool, meaning you cannot use	498	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		503
318	BEGIN { *async = \&Coro::async_pool }	504	BEGIN { *async = \&Coro::async_pool }
319		505
320	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
321		507
322	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
325		512
326	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
329	fast or be very important.	516	fast or be very important.
…		…
331	=cut	518	=cut
332		519
333	sub sync_job(&) {	520	sub sync_job(&) {
334	my ($job) = @_;	521	my ($job) = @_;
335		522
336	if ($Coro::current == $Coro::main) {	523	if (in_main) {
337	my $time = Event::time;	524	my $time = AE::time;
338		525
339	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
341		528
342	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	530
344	my $freeze_guard = freeze_mainloop;	531	my $freeze_guard = freeze_mainloop;
345		532
346	my $busy = 1;	533	my $busy = 1;
347	my @res;	534	my @res;
348		535
349	(async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	538	@res = eval { $job->() };
351	warn $@ if $@;	539	error $@ if $@;
352	undef $busy;	540	undef $busy;
353	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
354		542
355	while ($busy) {	543	while ($busy) {
356	Coro::cede or Event::one_event;	544	if (Coro::nready) {
		545	Coro::cede_notself;
		546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
357	}	548	}
		549	}
358		550
359	$time = Event::time - $time;	551	my $time = AE::time - $time;
360		552
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	553	$TICK_START += $time; # do not account sync jobs to server load
365		554
366	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
367	} else {	556	} else {
368	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
369		558
…		…
389	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
390		579
391	$coro	580	$coro
392	}	581	}
393		582
394	sub write_runtime {	583	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		584
397	# first touch the runtime file to show we are still running:	585	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
399		589
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	590	=cut
401	utime undef, undef, $fh;	591
		592	sub fork_call(&@) {
		593	my ($cb, @args) = @_;
		594
		595	# we seemingly have to make a local copy of the whole thing,
		596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
		598
		599	my @res = Coro::Util::fork_eval {
		600	reset_signals;
		601	&$cb
		602	}, @args;
		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
		608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
402	}	675	};
		676	cf::cleanup "db_open(db): $@" if $@;
403		677
404	my $guard = cf::lock_acquire "write_runtime";	678	$db
		679	}
405		680
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	681	our $DB;
407	or return;
408		682
409	my $value = $cf::RUNTIME + 90 + 10;	683	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	684	$DB ||= db_table "db";
411	# 60 allows for the watchdog to kill the server.	685	}
412		686
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	687	sub db_get($$) {
414	and return;	688	my $key = "$_[0]/$_[1]";
415		689
416	# always fsync - this file is important	690	cf::error "db_get called from main context"
417	aio_fsync $fh	691	if $Coro::current == $Coro::main;
418	and return;
419		692
420	# touch it again to show we are up-to-date	693	BDB::db_get $DB, undef, $key, my $data;
421	utime undef, undef, $fh;
422		694
423	close $fh	695	$! ? ()
424	or return;	696	: $data
		697	}
425		698
426	aio_rename "$runtime~", $runtime	699	sub db_put($$$) {
427	and return;	700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
428		703
429	warn "runtime file written.\n";#d#	704	=item cf::cache $id => [$paths...], $processversion => $process
430		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
431	1	769	}
		770
		771	db_get cache => "$id/data"
432	}	772	}
433		773
434	=item cf::datalog type => key => value, ...	774	=item cf::datalog type => key => value, ...
435		775
436	Log a datalog packet of the given type with the given key-value pairs.	776	Log a datalog packet of the given type with the given key-value pairs.
437		777
438	=cut	778	=cut
439		779
440	sub datalog($@) {	780	sub datalog($@) {
441	my ($type, %kv) = @_;	781	my ($type, %kv) = @_;
442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
443	}	783	}
444		784
445	=back	785	=back
446		786
447	=cut	787	=cut
448		788
449	#############################################################################	789	#############################################################################
450		790
451	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
452		792
453	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
456		796
457	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	799	Deliantra).
460		800
461	=over 4	801	=over 4
462		802
463	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
464		804
…		…
508	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
509		849
510	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
512		852
513	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
514	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
515		855
516	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
517		857
518	=over 4	858	=over 4
…		…
642		982
643	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
644	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
645		985
646	} elsif (ref $type) {	986	} elsif (ref $type) {
647	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
648		988
649	} else {	989	} else {
650	shift @arg;	990	shift @arg;
651	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
652	}	992	}
653	}	993	}
654	}	994	}
655		995
656	sub _object_attach {	996	sub _object_attach {
…		…
666	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
667	}	1007	}
668		1008
669	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
670	} else {	1010	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
672	}	1012	}
673		1013
674	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
675	}	1015	}
676		1016
…		…
716	";	1056	";
717	die if $@;	1057	die if $@;
718	}	1058	}
719		1059
720	our $override;	1060	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		1062
723	sub override {	1063	sub override {
724	$override = 1;	1064	$override = 1;
725	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
726	}	1066	}
727		1067
728	sub do_invoke {	1068	sub do_invoke {
729	my $event = shift;	1069	my $event = shift;
730	my $callbacks = shift;	1070	my $callbacks = shift;
731		1071
732	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
733		1073
734	local $override;	1074	local $override;
735		1075
736	for (@$callbacks) {	1076	for (@$callbacks) {
737	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
738		1078
739	if ($@) {	1079	if ($@) {
740	warn "$@";
741	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
742	override;	1081	override;
743	}	1082	}
744		1083
745	return 1 if $override;	1084	return 1 if $override;
746	}	1085	}
747		1086
748	0	1087	0
749	}	1088	}
750		1089
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1091
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1093
755	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
756		1095
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
758	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1099
761	=back	1100	=back
762		1101
763	=cut	1102	=cut
764		1103
765	#############################################################################	1104	#############################################################################
766	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
767		1148
768	sub reattach {	1149	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1151	my ($obj) = @_;
771		1152
		1153	# no longer needed after getting rid of delete_package?
772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
773		1155
774	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
775		1157
776	@$registry = ();	1158	@$registry = ();
777		1159
…		…
782	for (@$attach) {	1164	for (@$attach) {
783	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
784	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
785	}	1167	}
786	} else {	1168	} else {
787	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
788	}	1170	}
789	}	1171	}
790	}	1172	}
791		1173
792	cf::attachable->attach (	1174	cf::attachable->attach (
793	prio => -1000000,	1175	prio => -1000000,
794	on_instantiate => sub {	1176	on_instantiate => sub {
795	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
796		1178
797	$data = from_json $data;	1179	$data = decode_json $data;
798		1180
799	for (@$data) {	1181	for (@$data) {
800	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
801		1183
802	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1200	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
820		1202
821	sync_job {	1203	sync_job {
822	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
825		1209
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	aio_fsync $fh if $cf::USE_FSYNC;	1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1215	aio_fsync $fh;
		1216	}
830	close $fh;	1217	aio_close $fh;
831		1218
832	if (@$objs) {	1219	if (@$objs) {
833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
834	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
837	aio_fsync $fh if $cf::USE_FSYNC;	1224	if ($cf::USE_FSYNC) {
		1225	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;
		1226	aio_fsync $fh;
		1227	}
838	close $fh;	1228	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
840	}	1230	}
841	} else {	1231	} else {
842	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
843	}	1233	}
844		1234
845	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1239	} else {
847	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
848	}	1241	}
849	} else {	1242	} else {
850	aio_unlink $filename;	1243	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
852	}	1245	}
853	}	1246	};
854	}	1247	}
855		1248
856	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
858		1251
…		…
870	or return;	1263	or return;
871		1264
872	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
874	or return;	1267	or return;
		1268
875	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
876	}	1271	}
877		1272
		1273	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
880	return ($data, $av);	1278	($data, $av)
881	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
882		1286
883	#############################################################################	1287	#############################################################################
884	# command handling &c	1288	# command handling &c
885		1289
886	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1304	}
901		1305
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1307
904	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
905		1313
906	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
907	called.	1315	called.
908		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
909	=cut	1328	=cut
910		1329
911	sub register_extcmd {	1330	sub register_extcmd {
912	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
913		1332
914	$EXTCMD{$name} = $cb;	1333	$EXTCMD{$name} = $cb;
915	}	1334	}
916		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
		1343
917	cf::player->attach (	1344	cf::player->attach (
918	on_command => sub {	1345	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
920		1347
921	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
922	or return;	1349	or return;
923		1350
…		…
928	cf::override;	1355	cf::override;
929	},	1356	},
930	on_extcmd => sub {	1357	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
932		1359
933	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1361
935	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
941	} else {	1377	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1379	}
944		1380
945	cf::override;	1381	cf::override;
946	},	1382	},
947	);	1383	);
948		1384
		1385	# "readahead" all extensions
949	sub load_extension {	1386	sub cache_extensions {
950	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
951		1388
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}	1392	}
977	die $@;
978	}	1393	};
979		1394
980	push @EXTS, $pkg;	1395	$grp
981	}	1396	}
982		1397
983	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
984	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1405	next unless -r $path;
986	eval {	1406
987	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456
		1457	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1458	if exists $v->{meta}{mandatory};
		1459
		1460	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1461	delete $todo{$k};
		1462	} else {
		1463	$done{$k} = delete $todo{$k};
		1464	push @EXTS, $v->{pkg};
		1465	$progress = 1;
		1466
		1467	info "$v->{base}: extension inactive.\n"
		1468	unless $active;
		1469	}
988	1	1470	}
989	} or warn "$ext not loaded: $@";	1471
		1472	unless ($progress) {
		1473	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1474
		1475	while (my ($k, $v) = each %todo) {
		1476	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1477	if exists $v->{meta}{mandatory};
		1478	}
		1479	}
		1480	}
990	}	1481	};
991	}	1482	}
992		1483
993	#############################################################################	1484	#############################################################################
994		1485
		1486	=back
		1487
995	=head2 CORE EXTENSIONS	1488	=head2 CORE EXTENSIONS
996		1489
997	Functions and methods that extend core crossfire objects.	1490	Functions and methods that extend core deliantra objects.
998		1491
999	=cut	1492	=cut
1000		1493
1001	package cf::player;	1494	package cf::player;
1002		1495
1003	use Coro::AIO;	1496	use Coro::AIO;
1004		1497
1005	=head3 cf::player	1498	=head3 cf::player
1006		1499
1007	=over 4	1500	=over 4
		1501
		1502	=item cf::player::num_playing
		1503
		1504	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1505
		1506	=cut
		1507
		1508	sub num_playing {
		1509	scalar grep
		1510	$_->ob->map
		1511	&& !$_->hidden
		1512	&& !$_->ob->flag (cf::FLAG_WIZ),
		1513	cf::player::list
		1514	}
1008		1515
1009	=item cf::player::find $login	1516	=item cf::player::find $login
1010		1517
1011	Returns the given player object, loading it if necessary (might block).	1518	Returns the given player object, loading it if necessary (might block).
1012		1519
…		…
1031		1538
1032	sub exists($) {	1539	sub exists($) {
1033	my ($login) = @_;	1540	my ($login) = @_;
1034		1541
1035	$cf::PLAYER{$login}	1542	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1543	or !aio_stat path $login
1037	}	1544	}
1038		1545
1039	sub find($) {	1546	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1547	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1548	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1555	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1556	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1557	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1558	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1559
1053	my $pl = load_pl path $login	1560	my $f = new_from_file cf::object::thawer path $login
1054	or return;	1561	or return;
		1562
		1563	my $pl = cf::player::load_pl $f
		1564	or return;
		1565
		1566	local $cf::PLAYER_LOADING{$login} = $pl;
		1567	$f->resolve_delayed_derefs;
1055	$cf::PLAYER{$login} = $pl	1568	$cf::PLAYER{$login} = $pl
1056	}	1569	}
1057	}	1570	}
1058	}	1571	}
		1572
		1573	cf::player->attach (
		1574	on_load => sub {
		1575	my ($pl, $path) = @_;
		1576
		1577	# restore slots saved in save, below
		1578	my $slots = delete $pl->{_slots};
		1579
		1580	$pl->ob->current_weapon ($slots->[0]);
		1581	$pl->combat_ob ($slots->[1]);
		1582	$pl->ranged_ob ($slots->[2]);
		1583	},
		1584	);
1059		1585
1060	sub save($) {	1586	sub save($) {
1061	my ($pl) = @_;	1587	my ($pl) = @_;
1062		1588
1063	return if $pl->{deny_save};	1589	return if $pl->{deny_save};
…		…
1068	return if $pl->{deny_save};	1594	return if $pl->{deny_save};
1069		1595
1070	aio_mkdir playerdir $pl, 0770;	1596	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1597	$pl->{last_save} = $cf::RUNTIME;
1072		1598
		1599	cf::get_slot 0.01;
		1600
		1601	# save slots, to be restored later
		1602	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1603
1073	$pl->save_pl ($path);	1604	$pl->save_pl ($path);
1074	Coro::cede;	1605	cf::cede_to_tick;
1075	}	1606	}
1076		1607
1077	sub new($) {	1608	sub new($) {
1078	my ($login) = @_;	1609	my ($login) = @_;
1079		1610
…		…
1085	$cf::PLAYER{$login} = $self;	1616	$cf::PLAYER{$login} = $self;
1086		1617
1087	$self	1618	$self
1088	}	1619	}
1089		1620
		1621	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1622
		1623	=cut
		1624
		1625	sub send_msg {
		1626	my $ns = shift->ns
		1627	or return;
		1628	$ns->send_msg (@_);
		1629	}
		1630
1090	=item $pl->quit_character	1631	=item $pl->quit_character
1091		1632
1092	Nukes the player without looking back. If logged in, the connection will	1633	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1634	be destroyed. May block for a long time.
1094		1635
…		…
1098	my ($pl) = @_;	1639	my ($pl) = @_;
1099		1640
1100	my $name = $pl->ob->name;	1641	my $name = $pl->ob->name;
1101		1642
1102	$pl->{deny_save} = 1;	1643	$pl->{deny_save} = 1;
1103	$pl->password ("*"); # this should lock out the player until we nuked the dir	1644	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1104		1645
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1646	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1106	$pl->deactivate;	1647	$pl->deactivate;
		1648	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1649	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1108	$pl->ns->destroy if $pl->ns;	1650	$pl->ns->destroy if $pl->ns;
1109		1651
1110	my $path = playerdir $pl;	1652	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1653	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1147	or return [];	1689	or return [];
1148		1690
1149	my @logins;	1691	my @logins;
1150		1692
1151	for my $login (@$dirs) {	1693	for my $login (@$dirs) {
		1694	my $path = path $login;
		1695
		1696	# a .pst is a dead give-away for a valid player
		1697	# if no pst file found, open and chekc for blocked users
		1698	if (aio_stat "$path.pst") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1699	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1700	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1701	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1702	}
1155		1703
1156	utf8::decode $login;	1704	utf8::decode $login;
1157	push @logins, $login;	1705	push @logins, $login;
1158	}	1706	}
1159		1707
1160	\@logins	1708	\@logins
1161	}	1709	}
1162		1710
1163	=item $player->maps	1711	=item $player->maps
		1712
		1713	=item cf::player::maps $login
1164		1714
1165	Returns an arrayref of map paths that are private for this	1715	Returns an arrayref of map paths that are private for this
1166	player. May block.	1716	player. May block.
1167		1717
1168	=cut	1718	=cut
…		…
1186	}	1736	}
1187		1737
1188	\@paths	1738	\@paths
1189	}	1739	}
1190		1740
		1741	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1742
		1743	Expand deliantra pod fragments into protocol xml.
		1744
1191	=item $player->ext_reply ($msgid, %msg)	1745	=item $player->ext_reply ($msgid, @msg)
1192		1746
1193	Sends an ext reply to the player.	1747	Sends an ext reply to the player.
1194		1748
1195	=cut	1749	=cut
1196		1750
1197	sub ext_reply($$%) {	1751	sub ext_reply($$@) {
1198	my ($self, $id, %msg) = @_;	1752	my ($self, $id, @msg) = @_;
1199		1753
1200	$msg{msgid} = $id;	1754	$self->ns->ext_reply ($id, @msg)
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1755	}
1204		1756
1205	=item $player->ext_event ($type, %msg)	1757	=item $player->ext_msg ($type, @msg)
1206		1758
1207	Sends an ext event to the client.	1759	Sends an ext event to the client.
1208		1760
1209	=cut	1761	=cut
1210		1762
1211	sub ext_event($$%) {	1763	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1764	my ($self, $type, @msg) = @_;
1213		1765
1214	$self->ns->ext_event ($type, %msg);	1766	$self->ns->ext_msg ($type, @msg);
1215	}	1767	}
1216		1768
1217	=head3 cf::region	1769	=head3 cf::region
1218		1770
1219	=over 4	1771	=over 4
…		…
1222		1774
1223	package cf::region;	1775	package cf::region;
1224		1776
1225	=item cf::region::find_by_path $path	1777	=item cf::region::find_by_path $path
1226		1778
1227	Tries to decuce the probable region for a map knowing only its path.	1779	Tries to decuce the likely region for a map knowing only its path.
1228		1780
1229	=cut	1781	=cut
1230		1782
1231	sub find_by_path($) {	1783	sub find_by_path($) {
1232	my ($path) = @_;	1784	my ($path) = @_;
1233		1785
		1786	$path =~ s/^~[^\/]*//; # skip ~login
		1787
1234	my ($match, $specificity);	1788	my ($match, $specificity);
1235		1789
1236	for my $region (list) {	1790	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1791	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1792	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1793	if $region->specificity > $specificity;
1240	}	1794	}
1241	}	1795	}
1242		1796
…		…
1263	our $MAX_RESET = 3600;	1817	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1818	our $DEFAULT_RESET = 3000;
1265		1819
1266	sub generate_random_map {	1820	sub generate_random_map {
1267	my ($self, $rmp) = @_;	1821	my ($self, $rmp) = @_;
		1822
		1823	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1824
1268	# mit "rum" bekleckern, nicht	1825	# mit "rum" bekleckern, nicht
1269	$self->_create_random_map (	1826	$self->_create_random_map (
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1827	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1828	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1829	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1273	$rmp->{exit_on_final_map},	1830	$rmp->{exit_on_final_map},
1274	$rmp->{xsize}, $rmp->{ysize},	1831	$rmp->{xsize}, $rmp->{ysize},
1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1832	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1833	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1291		1848
1292	sub register {	1849	sub register {
1293	my (undef, $regex, $prio) = @_;	1850	my (undef, $regex, $prio) = @_;
1294	my $pkg = caller;	1851	my $pkg = caller;
1295		1852
1296	no strict;
1297	push @{"$pkg\::ISA"}, __PACKAGE__;	1853	push @{"$pkg\::ISA"}, __PACKAGE__;
1298		1854
1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1855	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1300	}	1856	}
1301		1857
1302	# also paths starting with '/'	1858	# also paths starting with '/'
1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1859	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1304		1860
1305	sub thawer_merge {	1861	sub thawer_merge {
1306	my ($self, $merge) = @_;	1862	my ($self, $merge) = @_;
1307		1863
1308	# we have to keep some variables in memory intact	1864	# we have to keep some variables in memory intact
1309	local $self->{path};	1865	local $self->{path};
1310	local $self->{load_path};	1866	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1867
1314	$self->SUPER::thawer_merge ($merge);	1868	$self->SUPER::thawer_merge ($merge);
1315	}	1869	}
1316		1870
1317	sub normalise {	1871	sub normalise {
1318	my ($path, $base) = @_;	1872	my ($path, $base) = @_;
1319		1873
1320	$path = "$path"; # make sure its a string	1874	$path = "$path"; # make sure it's a string
1321		1875
1322	$path =~ s/\.map$//;	1876	$path =~ s/\.map$//;
1323		1877
1324	# map plan:	1878	# map plan:
1325	#	1879	#
…		…
1364	$self->init; # pass $1 etc.	1918	$self->init; # pass $1 etc.
1365	return $self;	1919	return $self;
1366	}	1920	}
1367	}	1921	}
1368		1922
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1923	Carp::cluck "unable to resolve path '$path' (base '$base')";
1370	()	1924	()
1371	}	1925	}
1372		1926
1373	sub init {	1927	sub init {
1374	my ($self) = @_;	1928	my ($self) = @_;
…		…
1396		1950
1397	# the temporary/swap location	1951	# the temporary/swap location
1398	sub save_path {	1952	sub save_path {
1399	my ($self) = @_;	1953	my ($self) = @_;
1400		1954
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	1956	"$TMPDIR/$path.map"
1403	}	1957	}
1404		1958
1405	# the unique path, undef == no special unique path	1959	# the unique path, undef == no special unique path
1406	sub uniq_path {	1960	sub uniq_path {
1407	my ($self) = @_;	1961	my ($self) = @_;
1408		1962
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1963	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	1964	"$UNIQUEDIR/$path"
1411	}	1965	}
1412		1966
1413	# and all this just because we cannot iterate over	1967	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	1968	my ($self) = @_;
1417		1969
1418	$_->change_map_light ($change)	1970	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	1971
		1972	$self->do_decay_objects;
1420	}	1973	}
1421		1974
1422	sub unlink_save {	1975	sub unlink_save {
1423	my ($self) = @_;	1976	my ($self) = @_;
1424		1977
…		…
1429		1982
1430	sub load_header_from($) {	1983	sub load_header_from($) {
1431	my ($self, $path) = @_;	1984	my ($self, $path) = @_;
1432		1985
1433	utf8::encode $path;	1986	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	1987	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	or return;	1988	or return;
		1989
		1990	$self->_load_header ($f)
		1991	or return;
		1992
		1993	local $MAP_LOADING{$self->{path}} = $self;
		1994	$f->resolve_delayed_derefs;
1439		1995
1440	$self->{load_path} = $path;	1996	$self->{load_path} = $path;
1441		1997
1442	1	1998	1
1443	}	1999	}
…		…
1482	$self->load_header_orig	2038	$self->load_header_orig
1483	or return;	2039	or return;
1484	$self->prepare_orig;	2040	$self->prepare_orig;
1485	}	2041	}
1486		2042
		2043	$self->{deny_reset} = 1
		2044	if $self->no_reset;
		2045
1487	$self->default_region (cf::region::find_by_path $self->{path})	2046	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	2047	unless $self->default_region;
1489		2048
1490	1	2049	1
1491	}	2050	}
1492		2051
1493	sub find;	2052	sub find;
1494	sub find {	2053	sub find {
1495	my ($path, $origin) = @_;	2054	my ($path, $origin) = @_;
1496		2055
		2056	cf::cede_to_tick;
		2057
1497	$path = normalise $path, $origin && $origin->path;	2058	$path = normalise $path, $origin && $origin->path;
1498		2059
		2060	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	2061	my $guard2 = cf::lock_acquire "map_find:$path";
1500		2062
1501	$cf::MAP{$path} || do {	2063	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	2064	my $map = new_from_path cf::map $path
1504	or return;	2065	or return;
1505		2066
1506	$map->{last_save} = $cf::RUNTIME;	2067	$map->{last_save} = $cf::RUNTIME;
1507		2068
1508	$map->load_header	2069	$map->load_header
1509	or return;	2070	or return;
1510		2071
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2072	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2073	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2074	#$cf::WAIT_FOR_TICK->wait;
		2075	undef $guard2;
		2076	undef $guard1;
1514	$map->reset;	2077	$map->reset;
1515	undef $guard;
1516	return find $path;	2078	return find $path;
1517	}	2079	}
1518		2080
1519	$cf::MAP{$path} = $map	2081	$cf::MAP{$path} = $map
1520	}	2082	}
1521	}	2083	}
1522		2084
1523	sub pre_load { }	2085	sub pre_load { }
1524	sub post_load { }	2086	#sub post_load { } # XS
1525		2087
1526	sub load {	2088	sub load {
1527	my ($self) = @_;	2089	my ($self) = @_;
1528		2090
1529	local $self->{deny_reset} = 1; # loading can take a long time	2091	local $self->{deny_reset} = 1; # loading can take a long time
1530		2092
1531	my $path = $self->{path};	2093	my $path = $self->{path};
1532		2094
1533	{	2095	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2096	my $guard = cf::lock_acquire "map_data:$path";
1535		2097
		2098	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2099	return unless $self->in_memory == cf::MAP_SWAPPED;
1537		2100
1538	$self->in_memory (cf::MAP_LOADING);	2101	$self->in_memory (cf::MAP_LOADING);
1539		2102
1540	$self->alloc;	2103	$self->alloc;
1541		2104
1542	$self->pre_load;	2105	$self->pre_load;
1543	Coro::cede;	2106	cf::cede_to_tick;
1544		2107
		2108	my $f = new_from_file cf::object::thawer $self->{load_path};
		2109	$f->skip_block;
1545	$self->_load_objects ($self->{load_path}, 1)	2110	$self->_load_objects ($f)
1546	or return;	2111	or return;
1547		2112
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2113	$self->post_load_original
1549	if delete $self->{load_original};	2114	if delete $self->{load_original};
1550		2115
1551	if (my $uniq = $self->uniq_path) {	2116	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2117	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2118	unless (aio_stat $uniq) {
		2119	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2120	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2121	$self->_load_objects ($f);
		2122	$f->resolve_delayed_derefs;
		2123	}
1556	}	2124	}
1557	}	2125	}
1558		2126
1559	Coro::cede;	2127	$f->resolve_delayed_derefs;
		2128
		2129	cf::cede_to_tick;
1560	# now do the right thing for maps	2130	# now do the right thing for maps
1561	$self->link_multipart_objects;	2131	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2132	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2133	unless $self->difficulty;
1564	Coro::cede;	2134	cf::cede_to_tick;
1565		2135
1566	unless ($self->{deny_activate}) {	2136	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2137	$self->decay_objects;
1568	$self->fix_auto_apply;	2138	$self->fix_auto_apply;
1569	$self->update_buttons;	2139	$self->update_buttons;
1570	Coro::cede;	2140	cf::cede_to_tick;
1571	$self->set_darkness_map;
1572	Coro::cede;
1573	$self->activate;	2141	$self->activate;
1574	}	2142	}
1575		2143
		2144	$self->{last_save} = $cf::RUNTIME;
		2145	$self->last_access ($cf::RUNTIME);
		2146
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2147	$self->in_memory (cf::MAP_ACTIVE);
1577	}	2148	}
1578		2149
1579	$self->post_load;	2150	$self->post_load;
1580	}	2151	}
1581		2152
		2153	# customize the map for a given player, i.e.
		2154	# return the _real_ map. used by e.g. per-player
		2155	# maps to change the path to ~playername/mappath
1582	sub customise_for {	2156	sub customise_for {
1583	my ($self, $ob) = @_;	2157	my ($self, $ob) = @_;
1584		2158
1585	return find "~" . $ob->name . "/" . $self->{path}	2159	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2160	if $self->per_player;
1587		2161
		2162	# return find "?party/" . $ob->name . "/" . $self->{path}
		2163	# if $self->per_party;
		2164
1588	$self	2165	$self
1589	}	2166	}
1590		2167
1591	# find and load all maps in the 3x3 area around a map	2168	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	2169	sub load_neighbours {
1593	my ($map) = @_;	2170	my ($map) = @_;
1594		2171
1595	my @diag; # diagonal neighbours	2172	my @neigh; # diagonal neighbours
1596		2173
1597	for (0 .. 3) {	2174	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)	2175	my $neigh = $map->tile_path ($_)
1599	or next;	2176	or next;
1600	$neigh = find $neigh, $map	2177	$neigh = find $neigh, $map
1601	or next;	2178	or next;
1602	$neigh->load;	2179	$neigh->load;
1603		2180
		2181	# now find the diagonal neighbours
		2182	push @neigh,
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2183	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2184	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}	2185	}
1607		2186
1608	for (@diag) {	2187	for (grep defined $_->[0], @neigh) {
		2188	my ($path, $origin) = @$_;
1609	my $neigh = find @$_	2189	my $neigh = find $path, $origin
1610	or next;	2190	or next;
1611	$neigh->load;	2191	$neigh->load;
1612	}	2192	}
1613	}	2193	}
1614		2194
1615	sub find_sync {	2195	sub find_sync {
1616	my ($path, $origin) = @_;	2196	my ($path, $origin) = @_;
1617		2197
1618	cf::sync_job { find $path, $origin }	2198	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2199	if $Coro::current == $Coro::main;
		2200
		2201	find $path, $origin
1619	}	2202	}
1620		2203
1621	sub do_load_sync {	2204	sub do_load_sync {
1622	my ($map) = @_;	2205	my ($map) = @_;
1623		2206
1624	cf::sync_job { $map->load };	2207	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2208	if $Coro::current == $Coro::main;
		2209
		2210	$map->load;
1625	}	2211	}
1626		2212
1627	our %MAP_PREFETCH;	2213	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2214	our $MAP_PREFETCHER = undef;
1629		2215
1630	sub find_async {	2216	sub find_async {
1631	my ($path, $origin) = @_;	2217	my ($path, $origin, $load) = @_;
1632		2218
1633	$path = normalise $path, $origin && $origin->{path};	2219	$path = normalise $path, $origin && $origin->{path};
1634		2220
1635	if (my $map = $cf::MAP{$path}) {	2221	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2222	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1637	}	2223	}
1638		2224
1639	undef $MAP_PREFETCH{$path};	2225	$MAP_PREFETCH{$path} |= $load;
		2226
1640	$MAP_PREFETCHER ||= cf::async {	2227	$MAP_PREFETCHER ||= cf::async {
		2228	$Coro::current->{desc} = "map prefetcher";
		2229
1641	while (%MAP_PREFETCH) {	2230	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2231	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2232	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2233	$map->load if $v;
		2234	}
1646		2235
1647	delete $MAP_PREFETCH{$path};	2236	delete $MAP_PREFETCH{$k};
1648	}	2237	}
1649	}	2238	}
1650	undef $MAP_PREFETCHER;	2239	undef $MAP_PREFETCHER;
1651	};	2240	};
1652	$MAP_PREFETCHER->prio (6);	2241	$MAP_PREFETCHER->prio (6);
1653		2242
1654	()	2243	()
1655	}	2244	}
1656		2245
		2246	# common code, used by both ->save and ->swapout
1657	sub save {	2247	sub _save {
1658	my ($self) = @_;	2248	my ($self) = @_;
1659
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1661		2249
1662	$self->{last_save} = $cf::RUNTIME;	2250	$self->{last_save} = $cf::RUNTIME;
1663		2251
1664	return unless $self->dirty;	2252	return unless $self->dirty;
1665		2253
…		…
1671	return if $self->{deny_save};	2259	return if $self->{deny_save};
1672		2260
1673	local $self->{last_access} = $self->last_access;#d#	2261	local $self->{last_access} = $self->last_access;#d#
1674		2262
1675	cf::async {	2263	cf::async {
		2264	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2265	$_->contr->save for $self->players;
1677	};	2266	};
		2267
		2268	cf::get_slot 0.02;
1678		2269
1679	if ($uniq) {	2270	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2272	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2273	} else {
1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2274	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1684	}	2275	}
1685	}	2276	}
1686		2277
		2278	sub save {
		2279	my ($self) = @_;
		2280
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
		2283	$self->_save;
		2284	}
		2285
1687	sub swap_out {	2286	sub swap_out {
1688	my ($self) = @_;	2287	my ($self) = @_;
1689		2288
1690	# save first because save cedes
1691	$self->save;
1692
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2290
		2291	return if $self->in_memory != cf::MAP_ACTIVE;
		2292	return if $self->{deny_save};
1695	return if $self->players;	2293	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1697	return if $self->{deny_save};
1698		2294
		2295	# first deactivate the map and "unlink" it from the core
		2296	$self->deactivate;
		2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->in_memory (cf::MAP_SWAPPED);
		2299
		2300	# then atomically save
		2301	$self->_save;
		2302
		2303	# then free the map
1699	$self->clear;	2304	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2305	}
1702		2306
1703	sub reset_at {	2307	sub reset_at {
1704	my ($self) = @_;	2308	my ($self) = @_;
1705		2309
1706	# TODO: safety, remove and allow resettable per-player maps	2310	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	2311	return 1e99 if $self->{deny_reset};
1709		2312
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2313	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2314	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2315
…		…
1723	my ($self) = @_;	2326	my ($self) = @_;
1724		2327
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2328	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2329
1727	return if $self->players;	2330	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2331
1730	warn "resetting map ", $self->path;#d#	2332	cf::trace "resetting map ", $self->path, "\n";
1731		2333
1732	$self->in_memory (cf::MAP_SWAPPED);	2334	$self->in_memory (cf::MAP_SWAPPED);
1733		2335
1734	# need to save uniques path	2336	# need to save uniques path
1735	unless ($self->{deny_save}) {	2337	unless ($self->{deny_save}) {
…		…
1739	if $uniq;	2341	if $uniq;
1740	}	2342	}
1741		2343
1742	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1743		2345
		2346	$self->deactivate;
		2347	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2348	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2349
1748	$self->unlink_save;	2350	$self->unlink_save;
1749	$self->destroy;	2351	$self->destroy;
1750	}	2352	}
1751		2353
1752	my $nuke_counter = "aaaa";	2354	my $nuke_counter = "aaaa";
1753		2355
1754	sub nuke {	2356	sub nuke {
1755	my ($self) = @_;	2357	my ($self) = @_;
1756		2358
		2359	{
		2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2361
1757	delete $cf::MAP{$self->path};	2362	delete $cf::MAP{$self->path};
1758		2363
1759	$self->unlink_save;	2364	$self->unlink_save;
1760		2365
1761	bless $self, "cf::map";	2366	bless $self, "cf::map::wrap";
1762	delete $self->{deny_reset};	2367	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2368	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2369	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2370	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2371
1767	$cf::MAP{$self->path} = $self;	2372	$cf::MAP{$self->path} = $self;
		2373	}
1768		2374
1769	$self->reset; # polite request, might not happen	2375	$self->reset; # polite request, might not happen
		2376	}
		2377
		2378	=item $maps = cf::map::tmp_maps
		2379
		2380	Returns an arrayref with all map paths of currently instantiated and saved
		2381	maps. May block.
		2382
		2383	=cut
		2384
		2385	sub tmp_maps() {
		2386	[
		2387	map {
		2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise $_
		2391	: ()
		2392	} @{ aio_readdir $TMPDIR or [] }
		2393	]
		2394	}
		2395
		2396	=item $maps = cf::map::random_maps
		2397
		2398	Returns an arrayref with all map paths of currently instantiated and saved
		2399	random maps. May block.
		2400
		2401	=cut
		2402
		2403	sub random_maps() {
		2404	[
		2405	map {
		2406	utf8::decode $_;
		2407	/\.map$/
		2408	? normalise "?random/$_"
		2409	: ()
		2410	} @{ aio_readdir $RANDOMDIR or [] }
		2411	]
1770	}	2412	}
1771		2413
1772	=item cf::map::unique_maps	2414	=item cf::map::unique_maps
1773		2415
1774	Returns an arrayref of paths of all shared maps that have	2416	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2417	instantiated unique items. May block.
1776		2418
1777	=cut	2419	=cut
1778		2420
1779	sub unique_maps() {	2421	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2422	[
1781	or return;	2423	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2424	utf8::decode $_;
1787	next if /\.pst$/;	2425	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2426	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2427	? ()
1790	push @paths, cf::map::normalise $_;	2428	: normalise $_
		2429	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2430	]
1792
1793	\@paths
1794	}	2431	}
1795		2432
1796	package cf;	2433	=item cf::map::static_maps
		2434
		2435	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2436	file in the shared directory excluding F</styles> and F</editor>). May
		2437	block.
		2438
		2439	=cut
		2440
		2441	sub static_maps() {
		2442	my @dirs = "";
		2443	my @maps;
		2444
		2445	while (@dirs) {
		2446	my $dir = shift @dirs;
		2447
		2448	next if $dir eq "/styles" || $dir eq "/editor";
		2449
		2450	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2451	or return;
		2452
		2453	for (@$files) {
		2454	s/\.map$// or next;
		2455	utf8::decode $_;
		2456	push @maps, "$dir/$_";
		2457	}
		2458
		2459	push @dirs, map "$dir/$_", @$dirs;
		2460	}
		2461
		2462	\@maps
		2463	}
1797		2464
1798	=back	2465	=back
1799		2466
1800	=head3 cf::object	2467	=head3 cf::object
1801		2468
…		…
1805		2472
1806	=over 4	2473	=over 4
1807		2474
1808	=item $ob->inv_recursive	2475	=item $ob->inv_recursive
1809		2476
1810	Returns the inventory of the object _and_ their inventories, recursively.	2477	Returns the inventory of the object I<and> their inventories, recursively,
		2478	but I<not> the object itself.
1811		2479
1812	=cut	2480	=cut
1813		2481
1814	sub inv_recursive_;	2482	sub inv_recursive_;
1815	sub inv_recursive_ {	2483	sub inv_recursive_ {
…		…
1818		2486
1819	sub inv_recursive {	2487	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2488	inv_recursive_ inv $_[0]
1821	}	2489	}
1822		2490
		2491	=item $ref = $ob->ref
		2492
		2493	Creates and returns a persistent reference to an object that can be stored as a string.
		2494
		2495	=item $ob = cf::object::deref ($refstring)
		2496
		2497	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2498	even if the object actually exists. May block.
		2499
		2500	=cut
		2501
		2502	sub deref {
		2503	my ($ref) = @_;
		2504
		2505	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2506	my ($uuid, $name) = ($1, $2);
		2507	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2508	or return;
		2509	$pl->ob->uuid eq $uuid
		2510	or return;
		2511
		2512	$pl->ob
		2513	} else {
		2514	warn "$ref: cannot resolve object reference\n";
		2515	undef
		2516	}
		2517	}
		2518
1823	package cf;	2519	package cf;
1824		2520
1825	=back	2521	=back
1826		2522
1827	=head3 cf::object::player	2523	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2529	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1834	can be C<undef>. Does the right thing when the player is currently in a	2530	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2531	dialogue with the given NPC character.
1836		2532
1837	=cut	2533	=cut
		2534
		2535	our $SAY_CHANNEL = {
		2536	id => "say",
		2537	title => "Map",
		2538	reply => "say ",
		2539	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2540	};
		2541
		2542	our $CHAT_CHANNEL = {
		2543	id => "chat",
		2544	title => "Chat",
		2545	reply => "chat ",
		2546	tooltip => "Player chat and shouts, global to the server.",
		2547	};
1838		2548
1839	# rough implementation of a future "reply" method that works	2549	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2550	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2551	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2552	sub cf::object::player::reply($$$;$) {
…		…
1844		2554
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2555	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2556
1847	if ($self->{record_replies}) {	2557	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2558	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2559
1849	} else {	2560	} else {
		2561	my $pl = $self->contr;
		2562
		2563	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2564	my $dialog = $pl->{npc_dialog};
		2565	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2566
		2567	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2568	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2569	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2570	}
1852	}	2571	}
		2572	}
		2573
		2574	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2575
		2576	=cut
		2577
		2578	sub cf::object::send_msg {
		2579	my $pl = shift->contr
		2580	or return;
		2581	$pl->send_msg (@_);
1853	}	2582	}
1854		2583
1855	=item $player_object->may ("access")	2584	=item $player_object->may ("access")
1856		2585
1857	Returns wether the given player is authorized to access resource "access"	2586	Returns wether the given player is authorized to access resource "access"
…		…
1870		2599
1871	=item $player_object->enter_link	2600	=item $player_object->enter_link
1872		2601
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2602	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2603
1875	The player should be reasonably safe there for short amounts of time. You	2604	The player should be reasonably safe there for short amounts of time (e.g.
1876	I<MUST> call C<leave_link> as soon as possible, though.	2605	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2606	though, as the player cannot control the character while it is on the link
		2607	map.
1877		2608
1878	Will never block.	2609	Will never block.
1879		2610
1880	=item $player_object->leave_link ($map, $x, $y)	2611	=item $player_object->leave_link ($map, $x, $y)
1881		2612
…		…
1901	sub cf::object::player::enter_link {	2632	sub cf::object::player::enter_link {
1902	my ($self) = @_;	2633	my ($self) = @_;
1903		2634
1904	$self->deactivate_recursive;	2635	$self->deactivate_recursive;
1905		2636
		2637	++$self->{_link_recursion};
		2638
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2639	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2640
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2641	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2642	if $self->map && $self->map->{path} ne "{link}";
1910		2643
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2644	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1912	}	2645	}
1913		2646
1914	sub cf::object::player::leave_link {	2647	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2648	my ($self, $map, $x, $y) = @_;
		2649
		2650	return unless $self->contr->active;
1916		2651
1917	my $link_pos = delete $self->{_link_pos};	2652	my $link_pos = delete $self->{_link_pos};
1918		2653
1919	unless ($map) {	2654	unless ($map) {
1920	# restore original map position	2655	# restore original map position
…		…
1931	($x, $y) = (-1, -1)	2666	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2667	unless (defined $x) && (defined $y);
1933		2668
1934	# use -1 or undef as default coordinates, not 0, 0	2669	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2670	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2671	if $x <= 0 && $y <= 0;
1937		2672
1938	$map->load;	2673	$map->load;
1939	$map->load_diag;	2674	$map->load_neighbours;
1940		2675
1941	return unless $self->contr->active;	2676	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2677
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2678	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2679	if ($self->enter_map ($map, $x, $y)) {
1946	}	2680	# entering was successful
1947		2681	delete $self->{_link_recursion};
1948	cf::player->attach (	2682	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2683	$self->activate_recursive;
1950	my ($pl) = @_;
1951
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},	2684	}
1959	on_login => sub {
1960	my ($pl) = @_;
1961		2685
1962	# try to abort aborted map switching on player login :)	2686	}
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979		2687
1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2688	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1981		2689
1982	Moves the player to the given map-path and coordinates by first freezing	2690	Moves the player to the given map-path and coordinates by first freezing
1983	her, loading and preparing them map, calling the provided $check callback	2691	her, loading and preparing them map, calling the provided $check callback
1984	that has to return the map if sucecssful, and then unfreezes the player on	2692	that has to return the map if sucecssful, and then unfreezes the player on
1985	the new (success) or old (failed) map position.	2693	the new (success) or old (failed) map position. In either case, $done will
		2694	be called at the end of this process.
1986		2695
		2696	Note that $check will be called with a potentially non-loaded map, so if
		2697	it needs a loaded map it has to call C<< ->load >>.
		2698
1987	=cut	2699	=cut
		2700
		2701	our $GOTOGEN;
1988		2702
1989	sub cf::object::player::goto {	2703	sub cf::object::player::goto {
1990	my ($self, $path, $x, $y, $check) = @_;	2704	my ($self, $path, $x, $y, $check, $done) = @_;
1991		2705
1992	#d# #TODO#	2706	if ($self->{_link_recursion} >= $MAX_LINKS) {
1993	if ($check && !ref $check) {	2707	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
1994	warn Carp::longmess "goto called with non-ref check argument";#d#	2708	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
1995	undef $check;	2709	($path, $x, $y) = @$EMERGENCY_POSITION;
1996	}	2710	}
		2711
		2712	# do generation counting so two concurrent goto's will be executed in-order
		2713	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1997		2714
1998	$self->enter_link;	2715	$self->enter_link;
1999		2716
2000	(async {	2717	(async {
		2718	$Coro::current->{desc} = "player::goto $path $x $y";
		2719
		2720	# *tag paths override both path and x|y
		2721	if ($path =~ /^\*(.*)$/) {
		2722	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2723	my $ob = $obs[rand @obs];
		2724
		2725	# see if we actually can go there
		2726	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2727	$ob = $obs[rand @obs];
		2728	} else {
		2729	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2730	}
		2731	# else put us there anyways for now #d#
		2732
		2733	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2734	} else {
		2735	($path, $x, $y) = (undef, undef, undef);
		2736	}
		2737	}
		2738
2001	my $map = eval {	2739	my $map = eval {
2002	my $map = cf::map::find $path;	2740	my $map = defined $path ? cf::map::find $path : undef;
2003		2741
2004	if ($map) {	2742	if ($map) {
2005	$map = $map->customise_for ($self);	2743	$map = $map->customise_for ($self);
2006	$map = $check->($map) if $check && $map;	2744	$map = $check->($map, $x, $y, $self) if $check && $map;
2007	} else {	2745	} else {
2008	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2746	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2009	}	2747	}
2010		2748
2011	$map	2749	$map
2012	};	2750	};
2013		2751
2014	if ($@) {	2752	if ($@) {
2015	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);	2753	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2016	LOG llevError | logBacktrace, Carp::longmess $@;	2754	LOG llevError | logBacktrace, Carp::longmess $@;
2017	}	2755	}
2018		2756
		2757	if ($gen == $self->{_goto_generation}) {
		2758	delete $self->{_goto_generation};
2019	$self->leave_link ($map, $x, $y);	2759	$self->leave_link ($map, $x, $y);
		2760	}
		2761
		2762	$done->($self) if $done;
2020	})->prio (1);	2763	})->prio (1);
2021	}	2764	}
2022		2765
2023	=item $player_object->enter_exit ($exit_object)	2766	=item $player_object->enter_exit ($exit_object)
2024		2767
…		…
2044	}	2787	}
2045		2788
2046	sub prepare_random_map {	2789	sub prepare_random_map {
2047	my ($exit) = @_;	2790	my ($exit) = @_;
2048		2791
2049	my $guard = cf::lock_acquire "exit_prepare:$exit";
2050
2051	# all this does is basically replace the /! path by	2792	# all this does is basically replace the /! path by
2052	# a new random map path (?random/...) with a seed	2793	# a new random map path (?random/...) with a seed
2053	# that depends on the exit object	2794	# that depends on the exit object
2054		2795
2055	my $rmp = parse_random_map_params $exit->msg;	2796	my $rmp = parse_random_map_params $exit->msg;
…		…
2057	if ($exit->map) {	2798	if ($exit->map) {
2058	$rmp->{region} = $exit->region->name;	2799	$rmp->{region} = $exit->region->name;
2059	$rmp->{origin_map} = $exit->map->path;	2800	$rmp->{origin_map} = $exit->map->path;
2060	$rmp->{origin_x} = $exit->x;	2801	$rmp->{origin_x} = $exit->x;
2061	$rmp->{origin_y} = $exit->y;	2802	$rmp->{origin_y} = $exit->y;
		2803
		2804	$exit->map->touch;
2062	}	2805	}
2063		2806
2064	$rmp->{random_seed} ||= $exit->random_seed;	2807	$rmp->{random_seed} ||= $exit->random_seed;
2065		2808
2066	my $data = cf::to_json $rmp;	2809	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2067	my $md5 = Digest::MD5::md5_hex $data;	2810	my $md5 = Digest::MD5::md5_hex $data;
2068	my $meta = "$RANDOMDIR/$md5.meta";	2811	my $meta = "$RANDOMDIR/$md5.meta";
2069		2812
2070	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2813	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2071	aio_write $fh, 0, (length $data), $data, 0;	2814	aio_write $fh, 0, (length $data), $data, 0;
2072	undef $fh;	2815	undef $fh;
2073	aio_rename "$meta~", $meta;	2816	aio_rename "$meta~", $meta;
2074		2817
		2818	my $slaying = "?random/$md5";
		2819
		2820	if ($exit->valid) {
2075	$exit->slaying ("?random/$md5");	2821	$exit->slaying ("?random/$md5");
2076	$exit->msg (undef);	2822	$exit->msg (undef);
		2823	}
2077	}	2824	}
2078	}	2825	}
2079		2826
2080	sub cf::object::player::enter_exit {	2827	sub cf::object::player::enter_exit {
2081	my ($self, $exit) = @_;	2828	my ($self, $exit) = @_;
2082		2829
2083	return unless $self->type == cf::PLAYER;	2830	return unless $self->type == cf::PLAYER;
2084		2831
2085	if ($exit->slaying eq "/!") {
2086	#TODO: this should de-fi-ni-te-ly not be a sync-job
2087	# the problem is that $exit might not survive long enough
2088	# so it needs to be done right now, right here
2089	cf::sync_job { prepare_random_map $exit };
2090	}
2091
2092	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2093	my $hp = $exit->stats->hp;
2094	my $sp = $exit->stats->sp;
2095
2096	$self->enter_link;	2832	$self->enter_link;
2097		2833
2098	(async {	2834	(async {
2099	$self->deactivate_recursive; # just to be sure	2835	$Coro::current->{desc} = "enter_exit";
		2836
2100	unless (eval {	2837	unless (eval {
		2838	$self->deactivate_recursive; # just to be sure
		2839
		2840	# random map handling
		2841	{
		2842	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2843
		2844	prepare_random_map $exit
		2845	if $exit->slaying eq "/!";
		2846	}
		2847
		2848	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2849	my $x = $exit->stats->hp;
		2850	my $y = $exit->stats->sp;
		2851
2101	$self->goto ($slaying, $hp, $sp);	2852	$self->goto ($map, $x, $y);
2102		2853
		2854	# if exit is damned, update players death & WoR home-position
		2855	$self->contr->savebed ($map, $x, $y)
		2856	if $exit->flag (cf::FLAG_DAMNED);
		2857
2103	1;	2858	1
2104	}) {	2859	}) {
2105	$self->message ("Something went wrong deep within the crossfire server. "	2860	$self->message ("Something went wrong deep within the deliantra server. "
2106	. "I'll try to bring you back to the map you were before. "	2861	. "I'll try to bring you back to the map you were before. "
2107	. "Please report this to the dungeon master!",	2862	. "Please report this to the dungeon master!",
2108	cf::NDI_UNIQUE | cf::NDI_RED);	2863	cf::NDI_UNIQUE | cf::NDI_RED);
2109		2864
2110	warn "ERROR in enter_exit: $@";	2865	error "ERROR in enter_exit: $@";
2111	$self->leave_link;	2866	$self->leave_link;
2112	}	2867	}
2113	})->prio (1);	2868	})->prio (1);
2114	}	2869	}
2115		2870
…		…
2129		2884
2130	utf8::encode $text;	2885	utf8::encode $text;
2131	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2886	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2132	}	2887	}
2133		2888
		2889	=item $client->send_big_packet ($pkt)
		2890
		2891	Like C<send_packet>, but tries to compress large packets, and fragments
		2892	them as required.
		2893
		2894	=cut
		2895
		2896	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2897
		2898	sub cf::client::send_big_packet {
		2899	my ($self, $pkt) = @_;
		2900
		2901	# try lzf for large packets
		2902	$pkt = "lzf " . Compress::LZF::compress $pkt
		2903	if 1024 <= length $pkt and $self->{can_lzf};
		2904
		2905	# split very large packets
		2906	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2907	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2908	$pkt = "frag";
		2909	}
		2910
		2911	$self->send_packet ($pkt);
		2912	}
		2913
		2914	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2915
		2916	Send a drawinfo or msg packet to the client, formatting the msg for the
		2917	client if neccessary. C<$type> should be a string identifying the type of
		2918	the message, with C<log> being the default. If C<$color> is negative, suppress
		2919	the message unless the client supports the msg packet.
		2920
		2921	=cut
		2922
		2923	# non-persistent channels (usually the info channel)
		2924	our %CHANNEL = (
		2925	"c/motd" => {
		2926	id => "infobox",
		2927	title => "MOTD",
		2928	reply => undef,
		2929	tooltip => "The message of the day",
		2930	},
		2931	"c/identify" => {
		2932	id => "infobox",
		2933	title => "Identify",
		2934	reply => undef,
		2935	tooltip => "Items recently identified",
		2936	},
		2937	"c/examine" => {
		2938	id => "infobox",
		2939	title => "Examine",
		2940	reply => undef,
		2941	tooltip => "Signs and other items you examined",
		2942	},
		2943	"c/shopinfo" => {
		2944	id => "infobox",
		2945	title => "Shop Info",
		2946	reply => undef,
		2947	tooltip => "What your bargaining skill tells you about the shop",
		2948	},
		2949	"c/book" => {
		2950	id => "infobox",
		2951	title => "Book",
		2952	reply => undef,
		2953	tooltip => "The contents of a note or book",
		2954	},
		2955	"c/lookat" => {
		2956	id => "infobox",
		2957	title => "Look",
		2958	reply => undef,
		2959	tooltip => "What you saw there",
		2960	},
		2961	"c/who" => {
		2962	id => "infobox",
		2963	title => "Players",
		2964	reply => undef,
		2965	tooltip => "Shows players who are currently online",
		2966	},
		2967	"c/body" => {
		2968	id => "infobox",
		2969	title => "Body Parts",
		2970	reply => undef,
		2971	tooltip => "Shows which body parts you posess and are available",
		2972	},
		2973	"c/statistics" => {
		2974	id => "infobox",
		2975	title => "Statistics",
		2976	reply => undef,
		2977	tooltip => "Shows your primary statistics",
		2978	},
		2979	"c/skills" => {
		2980	id => "infobox",
		2981	title => "Skills",
		2982	reply => undef,
		2983	tooltip => "Shows your experience per skill and item power",
		2984	},
		2985	"c/shopitems" => {
		2986	id => "infobox",
		2987	title => "Shop Items",
		2988	reply => undef,
		2989	tooltip => "Shows the items currently for sale in this shop",
		2990	},
		2991	"c/resistances" => {
		2992	id => "infobox",
		2993	title => "Resistances",
		2994	reply => undef,
		2995	tooltip => "Shows your resistances",
		2996	},
		2997	"c/pets" => {
		2998	id => "infobox",
		2999	title => "Pets",
		3000	reply => undef,
		3001	tooltip => "Shows information abotu your pets/a specific pet",
		3002	},
		3003	"c/perceiveself" => {
		3004	id => "infobox",
		3005	title => "Perceive Self",
		3006	reply => undef,
		3007	tooltip => "You gained detailed knowledge about yourself",
		3008	},
		3009	"c/uptime" => {
		3010	id => "infobox",
		3011	title => "Uptime",
		3012	reply => undef,
		3013	tooltip => "How long the server has been running since last restart",
		3014	},
		3015	"c/mapinfo" => {
		3016	id => "infobox",
		3017	title => "Map Info",
		3018	reply => undef,
		3019	tooltip => "Information related to the maps",
		3020	},
		3021	"c/party" => {
		3022	id => "party",
		3023	title => "Party",
		3024	reply => "gsay ",
		3025	tooltip => "Messages and chat related to your party",
		3026	},
		3027	"c/death" => {
		3028	id => "death",
		3029	title => "Death",
		3030	reply => undef,
		3031	tooltip => "Reason for and more info about your most recent death",
		3032	},
		3033	"c/say" => $SAY_CHANNEL,
		3034	"c/chat" => $CHAT_CHANNEL,
		3035	);
		3036
		3037	sub cf::client::send_msg {
		3038	my ($self, $channel, $msg, $color, @extra) = @_;
		3039
		3040	$msg = $self->pl->expand_cfpod ($msg)
		3041	unless $color & cf::NDI_VERBATIM;
		3042
		3043	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3044
		3045	# check predefined channels, for the benefit of C
		3046	if ($CHANNEL{$channel}) {
		3047	$channel = $CHANNEL{$channel};
		3048
		3049	$self->ext_msg (channel_info => $channel);
		3050	$channel = $channel->{id};
		3051
		3052	} elsif (ref $channel) {
		3053	# send meta info to client, if not yet sent
		3054	unless (exists $self->{channel}{$channel->{id}}) {
		3055	$self->{channel}{$channel->{id}} = $channel;
		3056	$self->ext_msg (channel_info => $channel);
		3057	}
		3058
		3059	$channel = $channel->{id};
		3060	}
		3061
		3062	return unless @extra || length $msg;
		3063
		3064	# default colour, mask it out
		3065	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3066	if $color & cf::NDI_DEF;
		3067
		3068	my $pkt = "msg "
		3069	. $self->{json_coder}->encode (
		3070	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3071	);
		3072
		3073	$self->send_big_packet ($pkt);
		3074	}
		3075
2134	=item $client->ext_event ($type, %msg)	3076	=item $client->ext_msg ($type, @msg)
2135		3077
2136	Sends an exti event to the client.	3078	Sends an ext event to the client.
2137		3079
2138	=cut	3080	=cut
2139		3081
2140	sub cf::client::ext_event($$%) {	3082	sub cf::client::ext_msg($$@) {
2141	my ($self, $type, %msg) = @_;	3083	my ($self, $type, @msg) = @_;
2142		3084
		3085	if ($self->extcmd == 2) {
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3087	} elsif ($self->extcmd == 1) { # TODO: remove
2143	$msg{msgtype} = "event_$type";	3088	push @msg, msgtype => "event_$type";
2144	$self->send_packet ("ext " . cf::to_json \%msg);	3089	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3090	}
		3091	}
		3092
		3093	=item $client->ext_reply ($msgid, @msg)
		3094
		3095	Sends an ext reply to the client.
		3096
		3097	=cut
		3098
		3099	sub cf::client::ext_reply($$@) {
		3100	my ($self, $id, @msg) = @_;
		3101
		3102	if ($self->extcmd == 2) {
		3103	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3104	} elsif ($self->extcmd == 1) {
		3105	#TODO: version 1, remove
		3106	unshift @msg, msgtype => "reply", msgid => $id;
		3107	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3108	}
2145	}	3109	}
2146		3110
2147	=item $success = $client->query ($flags, "text", \&cb)	3111	=item $success = $client->query ($flags, "text", \&cb)
2148		3112
2149	Queues a query to the client, calling the given callback with	3113	Queues a query to the client, calling the given callback with
2150	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3114	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2151	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3115	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2152		3116
2153	Queries can fail, so check the return code. Or don't, as queries will become	3117	Queries can fail, so check the return code. Or don't, as queries will
2154	reliable at some point in the future.	3118	become reliable at some point in the future.
2155		3119
2156	=cut	3120	=cut
2157		3121
2158	sub cf::client::query {	3122	sub cf::client::query {
2159	my ($self, $flags, $text, $cb) = @_;	3123	my ($self, $flags, $text, $cb) = @_;
…		…
2167	utf8::encode $text;	3131	utf8::encode $text;
2168	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3132	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2169		3133
2170	$self->send_packet ($self->{query_queue}[0][0])	3134	$self->send_packet ($self->{query_queue}[0][0])
2171	if @{ $self->{query_queue} } == 1;	3135	if @{ $self->{query_queue} } == 1;
		3136
		3137	1
2172	}	3138	}
2173		3139
2174	cf::client->attach (	3140	cf::client->attach (
		3141	on_connect => sub {
		3142	my ($ns) = @_;
		3143
		3144	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3145	},
2175	on_reply => sub {	3146	on_reply => sub {
2176	my ($ns, $msg) = @_;	3147	my ($ns, $msg) = @_;
2177		3148
2178	# this weird shuffling is so that direct followup queries	3149	# this weird shuffling is so that direct followup queries
2179	# get handled first	3150	# get handled first
…		…
2191	} else {	3162	} else {
2192	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2193	}	3164	}
2194	}	3165	}
2195	},	3166	},
		3167	on_exticmd => sub {
		3168	my ($ns, $buf) = @_;
		3169
		3170	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3171
		3172	if (ref $msg) {
		3173	my ($type, $reply, @payload) =
		3174	"ARRAY" eq ref $msg
		3175	? @$msg
		3176	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3177
		3178	my @reply;
		3179
		3180	if (my $cb = $EXTICMD{$type}) {
		3181	@reply = $cb->($ns, @payload);
		3182	}
		3183
		3184	$ns->ext_reply ($reply, @reply)
		3185	if $reply;
		3186
		3187	} else {
		3188	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3189	}
		3190
		3191	cf::override;
		3192	},
2196	);	3193	);
2197		3194
2198	=item $client->async (\&cb)	3195	=item $client->async (\&cb)
2199		3196
2200	Create a new coroutine, running the specified callback. The coroutine will	3197	Create a new coroutine, running the specified callback. The coroutine will
…		…
2216		3213
2217	$coro	3214	$coro
2218	}	3215	}
2219		3216
2220	cf::client->attach (	3217	cf::client->attach (
2221	on_destroy => sub {	3218	on_client_destroy => sub {
2222	my ($ns) = @_;	3219	my ($ns) = @_;
2223		3220
2224	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3221	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2225	},	3222	},
2226	);	3223	);
…		…
2241	our $safe = new Safe "safe";	3238	our $safe = new Safe "safe";
2242	our $safe_hole = new Safe::Hole;	3239	our $safe_hole = new Safe::Hole;
2243		3240
2244	$SIG{FPE} = 'IGNORE';	3241	$SIG{FPE} = 'IGNORE';
2245		3242
2246	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3243	$safe->permit_only (Opcode::opset qw(
		3244	:base_core :base_mem :base_orig :base_math :base_loop
		3245	grepstart grepwhile mapstart mapwhile
		3246	sort time
		3247	));
2247		3248
2248	# here we export the classes and methods available to script code	3249	# here we export the classes and methods available to script code
2249		3250
2250	=pod	3251	=pod
2251		3252
2252	The following functions and methods are available within a safe environment:	3253	The following functions and methods are available within a safe environment:
2253		3254
2254	cf::object contr pay_amount pay_player map	3255	cf::object
		3256	contr pay_amount pay_player map x y force_find force_add destroy
		3257	insert remove name archname title slaying race decrease split
		3258	value
		3259
2255	cf::object::player player	3260	cf::object::player
2256	cf::player peaceful	3261	player
2257	cf::map trigger	3262
		3263	cf::player
		3264	peaceful
		3265
		3266	cf::map
		3267	trigger
2258		3268
2259	=cut	3269	=cut
2260		3270
2261	for (	3271	for (
2262	["cf::object" => qw(contr pay_amount pay_player map)],	3272	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3273	insert remove inv nrof name archname title slaying race
		3274	decrease split destroy change_exp value msg lore send_msg)],
2263	["cf::object::player" => qw(player)],	3275	["cf::object::player" => qw(player)],
2264	["cf::player" => qw(peaceful)],	3276	["cf::player" => qw(peaceful send_msg)],
2265	["cf::map" => qw(trigger)],	3277	["cf::map" => qw(trigger)],
2266	) {	3278	) {
2267	no strict 'refs';
2268	my ($pkg, @funs) = @$_;	3279	my ($pkg, @funs) = @$_;
2269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3280	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2270	for @funs;	3281	for @funs;
2271	}	3282	}
2272		3283
…		…
2287		3298
2288	my $qcode = $code;	3299	my $qcode = $code;
2289	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3300	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2290	$qcode =~ s/\n/\\n/g;	3301	$qcode =~ s/\n/\\n/g;
2291		3302
		3303	%vars = (_dummy => 0) unless %vars;
		3304
		3305	my @res;
2292	local $_;	3306	local $_;
2293	local @safe::cf::_safe_eval_args = values %vars;
2294		3307
2295	my $eval =	3308	my $eval =
2296	"do {\n"	3309	"do {\n"
2297	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3310	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2298	. "#line 0 \"{$qcode}\"\n"	3311	. "#line 0 \"{$qcode}\"\n"
2299	. $code	3312	. $code
2300	. "\n}"	3313	. "\n}"
2301	;	3314	;
2302		3315
		3316	if ($CFG{safe_eval}) {
2303	sub_generation_inc;	3317	sub_generation_inc;
		3318	local @safe::cf::_safe_eval_args = values %vars;
2304	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3319	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2305	sub_generation_inc;	3320	sub_generation_inc;
		3321	} else {
		3322	local @cf::_safe_eval_args = values %vars;
		3323	@res = wantarray ? eval eval : scalar eval $eval;
		3324	}
2306		3325
2307	if ($@) {	3326	if ($@) {
2308	warn "$@";	3327	warn "$@",
2309	warn "while executing safe code '$code'\n";	3328	"while executing safe code '$code'\n",
2310	warn "with arguments " . (join " ", %vars) . "\n";	3329	"with arguments " . (join " ", %vars) . "\n";
2311	}	3330	}
2312		3331
2313	wantarray ? @res : $res[0]	3332	wantarray ? @res : $res[0]
2314	}	3333	}
2315		3334
…		…
2329	=cut	3348	=cut
2330		3349
2331	sub register_script_function {	3350	sub register_script_function {
2332	my ($fun, $cb) = @_;	3351	my ($fun, $cb) = @_;
2333		3352
2334	no strict 'refs';	3353	$fun = "safe::$fun" if $CFG{safe_eval};
2335	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3354	*$fun = $safe_hole->wrap ($cb);
2336	}	3355	}
2337		3356
2338	=back	3357	=back
2339		3358
2340	=cut	3359	=cut
2341
2342	#############################################################################
2343
2344	=head2 EXTENSION DATABASE SUPPORT
2345
2346	Crossfire maintains a very simple database for extension use. It can
2347	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2348	convert to/from binary).
2349
2350	The parameter C<$family> should best start with the name of the extension
2351	using it, it should be unique.
2352
2353	=over 4
2354
2355	=item $value = cf::db_get $family => $key
2356
2357	Returns a single value from the database.
2358
2359	=item cf::db_put $family => $key => $value
2360
2361	Stores the given C<$value> in the family.
2362
2363	=cut
2364
2365	our $DB;
2366
2367	sub db_init {
2368	unless ($DB) {
2369	$DB = BDB::db_create $DB_ENV;
2370
2371	cf::sync_job {
2372	eval {
2373	$DB->set_flags (BDB::CHKSUM);
2374
2375	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2376	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2377	cf::cleanup "db_open(db): $!" if $!;
2378	};
2379	cf::cleanup "db_open(db): $@" if $@;
2380	};
2381	}
2382	}
2383
2384	sub db_get($$) {
2385	my $key = "$_[0]/$_[1]";
2386
2387	cf::sync_job {
2388	BDB::db_get $DB, undef, $key, my $data;
2389
2390	$! ? ()
2391	: $data
2392	}
2393	}
2394
2395	sub db_put($$$) {
2396	BDB::dbreq_pri 4;
2397	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2398	}
2399
2400	=item cf::cache $id => [$paths...], $processversion => $process
2401
2402	Generic caching function that returns the value of the resource $id,
2403	caching and regenerating as required.
2404
2405	This function can block.
2406
2407	=cut
2408
2409	sub cache {
2410	my ($id, $src, $processversion, $process) = @_;
2411
2412	my $meta =
2413	join "\x00",
2414	$processversion,
2415	map {
2416	aio_stat $_
2417	and Carp::croak "$_: $!";
2418
2419	($_, (stat _)[7,9])
2420	} @$src;
2421
2422	my $dbmeta = db_get cache => "$id/meta";
2423	if ($dbmeta ne $meta) {
2424	# changed, we may need to process
2425
2426	my @data;
2427	my $md5;
2428
2429	for (0 .. $#$src) {
2430	0 <= aio_load $src->[$_], $data[$_]
2431	or Carp::croak "$src->[$_]: $!";
2432	}
2433
2434	# if processing is expensive, check
2435	# checksum first
2436	if (1) {
2437	$md5 =
2438	join "\x00",
2439	$processversion,
2440	map {
2441	Coro::cede;
2442	($src->[$_], Digest::MD5::md5_hex $data[$_])
2443	} 0.. $#$src;
2444
2445
2446	my $dbmd5 = db_get cache => "$id/md5";
2447	if ($dbmd5 eq $md5) {
2448	db_put cache => "$id/meta", $meta;
2449
2450	return db_get cache => "$id/data";
2451	}
2452	}
2453
2454	my $t1 = Time::HiRes::time;
2455	my $data = $process->(\@data);
2456	my $t2 = Time::HiRes::time;
2457
2458	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2459
2460	db_put cache => "$id/data", $data;
2461	db_put cache => "$id/md5" , $md5;
2462	db_put cache => "$id/meta", $meta;
2463
2464	return $data;
2465	}
2466
2467	db_get cache => "$id/data"
2468	}
2469
2470	=item fork_call { }, $args
2471
2472	Executes the given code block with the given arguments in a seperate
2473	process, returning the results. Everything must be serialisable with
2474	Coro::Storable. May, of course, block. Note that the executed sub may
2475	never block itself or use any form of Event handling.
2476
2477	=cut
2478
2479	sub fork_call(&@) {
2480	my ($cb, @args) = @_;
2481
2482	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2483	# or die "socketpair: $!";
2484	pipe my $fh1, my $fh2
2485	or die "pipe: $!";
2486
2487	if (my $pid = fork) {
2488	close $fh2;
2489
2490	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2491	$res = Coro::Storable::thaw $res;
2492
2493	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2494
2495	die $$res unless "ARRAY" eq ref $res;
2496
2497	return wantarray ? @$res : $res->[-1];
2498	} else {
2499	reset_signals;
2500	local $SIG{__WARN__};
2501	local $SIG{__DIE__};
2502	eval {
2503	close $fh1;
2504
2505	my @res = eval { $cb->(@args) };
2506	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2507	};
2508
2509	warn $@ if $@;
2510	_exit 0;
2511	}
2512	}
2513
2514
2515		3360
2516	#############################################################################	3361	#############################################################################
2517	# the server's init and main functions	3362	# the server's init and main functions
2518		3363
2519	sub load_facedata($) {	3364	sub load_facedata($) {
2520	my ($path) = @_;	3365	my ($path) = @_;
2521		3366
		3367	# HACK to clear player env face cache, we need some signal framework
		3368	# for this (global event?)
		3369	%ext::player_env::MUSIC_FACE_CACHE = ();
		3370
		3371	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3372
2522	warn "loading facedata from $path\n";	3373	trace "loading facedata from $path\n";
2523		3374
2524	my $facedata;	3375	my $facedata;
2525	0 < aio_load $path, $facedata	3376	0 < aio_load $path, $facedata
2526	or die "$path: $!";	3377	or die "$path: $!";
2527		3378
2528	$facedata = Coro::Storable::thaw $facedata;	3379	$facedata = Coro::Storable::thaw $facedata;
2529		3380
2530	$facedata->{version} == 2	3381	$facedata->{version} == 2
2531	or cf::cleanup "$path: version mismatch, cannot proceed.";	3382	or cf::cleanup "$path: version mismatch, cannot proceed.";
2532		3383
		3384	# patch in the exptable
		3385	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3386	$facedata->{resource}{"res/exp_table"} = {
		3387	type => FT_RSRC,
		3388	data => $exp_table,
		3389	hash => (Digest::MD5::md5 $exp_table),
		3390	};
		3391	cf::cede_to_tick;
		3392
2533	{	3393	{
2534	my $faces = $facedata->{faceinfo};	3394	my $faces = $facedata->{faceinfo};
2535		3395
2536	while (my ($face, $info) = each %$faces) {	3396	while (my ($face, $info) = each %$faces) {
2537	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3397	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3398
2538	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3399	cf::face::set_visibility $idx, $info->{visibility};
		3400	cf::face::set_magicmap $idx, $info->{magicmap};
2539	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3401	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2540	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3402	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2541	Coro::cede;	3403
		3404	cf::cede_to_tick;
2542	}	3405	}
2543		3406
2544	while (my ($face, $info) = each %$faces) {	3407	while (my ($face, $info) = each %$faces) {
2545	next unless $info->{smooth};	3408	next unless $info->{smooth};
		3409
2546	my $idx = cf::face::find $face	3410	my $idx = cf::face::find $face
2547	or next;	3411	or next;
		3412
2548	if (my $smooth = cf::face::find $info->{smooth}) {	3413	if (my $smooth = cf::face::find $info->{smooth}) {
		3414	cf::face::set_smooth $idx, $smooth;
2549	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3415	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2550	} else {	3416	} else {
2551	warn "smooth face '$info->{smooth}' not found for face '$face'";	3417	error "smooth face '$info->{smooth}' not found for face '$face'";
2552	}	3418	}
2553	Coro::cede;	3419
		3420	cf::cede_to_tick;
2554	}	3421	}
2555	}	3422	}
2556		3423
2557	{	3424	{
2558	my $anims = $facedata->{animinfo};	3425	my $anims = $facedata->{animinfo};
2559		3426
2560	while (my ($anim, $info) = each %$anims) {	3427	while (my ($anim, $info) = each %$anims) {
2561	cf::anim::set $anim, $info->{frames}, $info->{facings};	3428	cf::anim::set $anim, $info->{frames}, $info->{facings};
2562	Coro::cede;	3429	cf::cede_to_tick;
2563	}	3430	}
2564		3431
2565	cf::anim::invalidate_all; # d'oh	3432	cf::anim::invalidate_all; # d'oh
2566	}	3433	}
2567		3434
		3435	{
		3436	my $res = $facedata->{resource};
		3437
		3438	while (my ($name, $info) = each %$res) {
		3439	if (defined $info->{type}) {
		3440	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3441
		3442	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3443	cf::face::set_type $idx, $info->{type};
		3444	} else {
		3445	$RESOURCE{$name} = $info; # unused
		3446	}
		3447
		3448	cf::cede_to_tick;
		3449	}
		3450	}
		3451
		3452	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3453
2568	1	3454	1
2569	}	3455	}
2570		3456
		3457	register_exticmd fx_want => sub {
		3458	my ($ns, $want) = @_;
		3459
		3460	while (my ($k, $v) = each %$want) {
		3461	$ns->fx_want ($k, $v);
		3462	}
		3463	};
		3464
		3465	sub load_resource_file($) {
		3466	my $guard = lock_acquire "load_resource_file";
		3467
		3468	my $status = load_resource_file_ $_[0];
		3469	get_slot 0.1, 100;
		3470	cf::arch::commit_load;
		3471
		3472	$status
		3473	}
		3474
2571	sub reload_regions {	3475	sub reload_regions {
		3476	# HACK to clear player env face cache, we need some signal framework
		3477	# for this (global event?)
		3478	%ext::player_env::MUSIC_FACE_CACHE = ();
		3479
2572	load_resource_file "$MAPDIR/regions"	3480	load_resource_file "$MAPDIR/regions"
2573	or die "unable to load regions file\n";	3481	or die "unable to load regions file\n";
		3482
		3483	for (cf::region::list) {
		3484	$_->{match} = qr/$_->{match}/
		3485	if exists $_->{match};
		3486	}
2574	}	3487	}
2575		3488
2576	sub reload_facedata {	3489	sub reload_facedata {
2577	load_facedata "$DATADIR/facedata"	3490	load_facedata "$DATADIR/facedata"
2578	or die "unable to load facedata\n";	3491	or die "unable to load facedata\n";
…		…
2586	sub reload_treasures {	3499	sub reload_treasures {
2587	load_resource_file "$DATADIR/treasures"	3500	load_resource_file "$DATADIR/treasures"
2588	or die "unable to load treasurelists\n";	3501	or die "unable to load treasurelists\n";
2589	}	3502	}
2590		3503
		3504	sub reload_sound {
		3505	trace "loading sound config from $DATADIR/sound\n";
		3506
		3507	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3508	or die "$DATADIR/sound $!";
		3509
		3510	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3511
		3512	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3513	my $sound = $soundconf->{compat}[$_]
		3514	or next;
		3515
		3516	my $face = cf::face::find "sound/$sound->[1]";
		3517	cf::sound::set $sound->[0] => $face;
		3518	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3519	}
		3520
		3521	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3522	my $face = cf::face::find "sound/$v";
		3523	cf::sound::set $k => $face;
		3524	}
		3525	}
		3526
2591	sub reload_resources {	3527	sub reload_resources {
2592	warn "reloading resource files...\n";	3528	trace "reloading resource files...\n";
2593		3529
		3530	reload_exp_table;
		3531	reload_materials;
		3532	reload_facedata;
		3533	reload_sound;
		3534	reload_archetypes;
2594	reload_regions;	3535	reload_regions;
2595	reload_facedata;
2596	reload_archetypes;
2597	reload_treasures;	3536	reload_treasures;
2598		3537
2599	warn "finished reloading resource files\n";	3538	trace "finished reloading resource files\n";
2600	}	3539	}
2601		3540
2602	sub init {	3541	sub reload_config {
2603	reload_resources;	3542	trace "reloading config file...\n";
2604	}
2605		3543
2606	sub cfg_load {
2607	open my $fh, "<:utf8", "$CONFDIR/config"	3544	open my $fh, "<:utf8", "$CONFDIR/config"
2608	or return;	3545	or return;
2609		3546
2610	local $/;	3547	local $/;
2611	*CFG = YAML::Syck::Load <$fh>;	3548	*CFG = YAML::XS::Load scalar <$fh>;
2612		3549
2613	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3550	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2614		3551
2615	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3552	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2616	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3553	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2617		3554
2618	if (exists $CFG{mlockall}) {	3555	if (exists $CFG{mlockall}) {
…		…
2620	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3557	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2621	and die "WARNING: m(un)lockall failed: $!\n";	3558	and die "WARNING: m(un)lockall failed: $!\n";
2622	};	3559	};
2623	warn $@ if $@;	3560	warn $@ if $@;
2624	}	3561	}
		3562
		3563	trace "finished reloading resource files\n";
		3564	}
		3565
		3566	sub pidfile() {
		3567	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3568	or die "$PIDFILE: $!";
		3569	flock $fh, &Fcntl::LOCK_EX
		3570	or die "$PIDFILE: flock: $!";
		3571	$fh
		3572	}
		3573
		3574	# make sure only one server instance is running at any one time
		3575	sub atomic {
		3576	my $fh = pidfile;
		3577
		3578	my $pid = <$fh>;
		3579	kill 9, $pid if $pid > 0;
		3580
		3581	seek $fh, 0, 0;
		3582	print $fh $$;
		3583	}
		3584
		3585	sub main_loop {
		3586	trace "EV::loop starting\n";
		3587	if (1) {
		3588	EV::loop;
		3589	}
		3590	trace "EV::loop returned\n";
		3591	goto &main_loop unless $REALLY_UNLOOP;
2625	}	3592	}
2626		3593
2627	sub main {	3594	sub main {
		3595	cf::init_globals; # initialise logging
		3596
		3597	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3598	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3599	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3600	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3601
		3602	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3603
2628	# we must not ever block the main coroutine	3604	# we must not ever block the main coroutine
2629	local $Coro::idle = sub {	3605	local $Coro::idle = sub {
2630	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2631	(async {	3607	(async {
2632	Event::one_event;	3608	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3609	EV::loop EV::LOOP_ONESHOT;
2633	})->prio (Coro::PRIO_MAX);	3610	})->prio (Coro::PRIO_MAX);
2634	};	3611	};
2635		3612
2636	cfg_load;	3613	evthread_start IO::AIO::poll_fileno;
		3614
		3615	cf::sync_job {
		3616	cf::incloader::init ();
		3617
		3618	cf::init_anim;
		3619	cf::init_attackmess;
		3620	cf::init_dynamic;
		3621
		3622	cf::load_settings;
		3623
		3624	reload_resources;
		3625	reload_config;
2637	db_init;	3626	db_init;
		3627
		3628	cf::init_uuid;
		3629	cf::init_signals;
		3630	cf::init_skills;
		3631
		3632	cf::init_beforeplay;
		3633
		3634	atomic;
		3635
2638	load_extensions;	3636	load_extensions;
2639		3637
2640	$TICK_WATCHER->start;	3638	utime time, time, $RUNTIMEFILE;
2641	Event::loop;	3639
		3640	# no (long-running) fork's whatsoever before this point(!)
		3641	use POSIX ();
		3642	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3643
		3644	(pop @POST_INIT)->(0) while @POST_INIT;
		3645	};
		3646
		3647	cf::object::thawer::errors_are_fatal 0;
		3648	info "parse errors in files are no longer fatal from this point on.\n";
		3649
		3650	my $free_main; $free_main = EV::idle sub {
		3651	undef $free_main;
		3652	undef &main; # free gobs of memory :)
		3653	};
		3654
		3655	goto &main_loop;
2642	}	3656	}
2643		3657
2644	#############################################################################	3658	#############################################################################
2645	# initialisation and cleanup	3659	# initialisation and cleanup
2646		3660
2647	# install some emergency cleanup handlers	3661	# install some emergency cleanup handlers
2648	BEGIN {	3662	BEGIN {
		3663	our %SIGWATCHER = ();
2649	for my $signal (qw(INT HUP TERM)) {	3664	for my $signal (qw(INT HUP TERM)) {
2650	Event->signal (	3665	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2651	reentrant => 0,
2652	data => WF_AUTOCANCEL,
2653	signal => $signal,
2654	prio => 0,
2655	cb => sub {
2656	cf::cleanup "SIG$signal";	3666	cf::cleanup "SIG$signal";
2657	},
2658	);	3667	};
		3668	}
		3669	}
		3670
		3671	sub write_runtime_sync {
		3672	my $t0 = AE::time;
		3673
		3674	# first touch the runtime file to show we are still running:
		3675	# the fsync below can take a very very long time.
		3676
		3677	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3678
		3679	my $guard = cf::lock_acquire "write_runtime";
		3680
		3681	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3682	or return;
		3683
		3684	my $value = $cf::RUNTIME + 90 + 10;
		3685	# 10 is the runtime save interval, for a monotonic clock
		3686	# 60 allows for the watchdog to kill the server.
		3687
		3688	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3689	and return;
		3690
		3691	# always fsync - this file is important
		3692	aio_fsync $fh
		3693	and return;
		3694
		3695	# touch it again to show we are up-to-date
		3696	aio_utime $fh, undef, undef;
		3697
		3698	close $fh
		3699	or return;
		3700
		3701	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3702	and return;
		3703
		3704	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3705
2659	}	3706	1
		3707	}
		3708
		3709	our $uuid_lock;
		3710	our $uuid_skip;
		3711
		3712	sub write_uuid_sync($) {
		3713	$uuid_skip ||= $_[0];
		3714
		3715	return if $uuid_lock;
		3716	local $uuid_lock = 1;
		3717
		3718	my $uuid = "$LOCALDIR/uuid";
		3719
		3720	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3721	or return;
		3722
		3723	my $value = uuid_seq uuid_cur;
		3724
		3725	unless ($value) {
		3726	info "cowardly refusing to write zero uuid value!\n";
		3727	return;
		3728	}
		3729
		3730	my $value = uuid_str $value + $uuid_skip;
		3731	$uuid_skip = 0;
		3732
		3733	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3734	and return;
		3735
		3736	# always fsync - this file is important
		3737	aio_fsync $fh
		3738	and return;
		3739
		3740	close $fh
		3741	or return;
		3742
		3743	aio_rename "$uuid~", $uuid
		3744	and return;
		3745
		3746	trace "uuid file written ($value).\n";
		3747
		3748	1
		3749
		3750	}
		3751
		3752	sub write_uuid($$) {
		3753	my ($skip, $sync) = @_;
		3754
		3755	$sync ? write_uuid_sync $skip
		3756	: async { write_uuid_sync $skip };
2660	}	3757	}
2661		3758
2662	sub emergency_save() {	3759	sub emergency_save() {
2663	my $freeze_guard = cf::freeze_mainloop;	3760	my $freeze_guard = cf::freeze_mainloop;
2664		3761
2665	warn "enter emergency perl save\n";	3762	info "emergency_perl_save: enter\n";
		3763
		3764	# this is a trade-off: we want to be very quick here, so
		3765	# save all maps without fsync, and later call a global sync
		3766	# (which in turn might be very very slow)
		3767	local $USE_FSYNC = 0;
2666		3768
2667	cf::sync_job {	3769	cf::sync_job {
		3770	cf::write_runtime_sync; # external watchdog should not bark
		3771
2668	# use a peculiar iteration method to avoid tripping on perl	3772	# use a peculiar iteration method to avoid tripping on perl
2669	# refcount bugs in for. also avoids problems with players	3773	# refcount bugs in for. also avoids problems with players
2670	# and maps saved/destroyed asynchronously.	3774	# and maps saved/destroyed asynchronously.
2671	warn "begin emergency player save\n";	3775	info "emergency_perl_save: begin player save\n";
2672	for my $login (keys %cf::PLAYER) {	3776	for my $login (keys %cf::PLAYER) {
2673	my $pl = $cf::PLAYER{$login} or next;	3777	my $pl = $cf::PLAYER{$login} or next;
2674	$pl->valid or next;	3778	$pl->valid or next;
		3779	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2675	$pl->save;	3780	$pl->save;
2676	}	3781	}
2677	warn "end emergency player save\n";	3782	info "emergency_perl_save: end player save\n";
2678		3783
2679	warn "begin emergency map save\n";	3784	cf::write_runtime_sync; # external watchdog should not bark
		3785
		3786	info "emergency_perl_save: begin map save\n";
2680	for my $path (keys %cf::MAP) {	3787	for my $path (keys %cf::MAP) {
2681	my $map = $cf::MAP{$path} or next;	3788	my $map = $cf::MAP{$path} or next;
2682	$map->valid or next;	3789	$map->valid or next;
2683	$map->save;	3790	$map->save;
2684	}	3791	}
2685	warn "end emergency map save\n";	3792	info "emergency_perl_save: end map save\n";
2686		3793
2687	warn "begin emergency database checkpoint\n";	3794	cf::write_runtime_sync; # external watchdog should not bark
		3795
		3796	info "emergency_perl_save: begin database checkpoint\n";
2688	BDB::db_env_txn_checkpoint $DB_ENV;	3797	BDB::db_env_txn_checkpoint $DB_ENV;
2689	warn "end emergency database checkpoint\n";	3798	info "emergency_perl_save: end database checkpoint\n";
		3799
		3800	info "emergency_perl_save: begin write uuid\n";
		3801	write_uuid_sync 1;
		3802	info "emergency_perl_save: end write uuid\n";
		3803
		3804	cf::write_runtime_sync; # external watchdog should not bark
		3805
		3806	trace "emergency_perl_save: syncing database to disk";
		3807	BDB::db_env_txn_checkpoint $DB_ENV;
		3808
		3809	info "emergency_perl_save: starting sync\n";
		3810	IO::AIO::aio_sync sub {
		3811	info "emergency_perl_save: finished sync\n";
		3812	};
		3813
		3814	cf::write_runtime_sync; # external watchdog should not bark
		3815
		3816	trace "emergency_perl_save: flushing outstanding aio requests";
		3817	while (IO::AIO::nreqs || BDB::nreqs) {
		3818	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3819	}
		3820
		3821	cf::write_runtime_sync; # external watchdog should not bark
2690	};	3822	};
2691		3823
2692	warn "leave emergency perl save\n";	3824	info "emergency_perl_save: leave\n";
2693	}	3825	}
2694		3826
2695	sub post_cleanup {	3827	sub post_cleanup {
2696	my ($make_core) = @_;	3828	my ($make_core) = @_;
2697		3829
		3830	IO::AIO::flush;
		3831
2698	warn Carp::longmess "post_cleanup backtrace"	3832	error Carp::longmess "post_cleanup backtrace"
2699	if $make_core;	3833	if $make_core;
		3834
		3835	my $fh = pidfile;
		3836	unlink $PIDFILE if <$fh> == $$;
		3837	}
		3838
		3839	# a safer delete_package, copied from Symbol
		3840	sub clear_package($) {
		3841	my $pkg = shift;
		3842
		3843	# expand to full symbol table name if needed
		3844	unless ($pkg =~ /^main::.*::$/) {
		3845	$pkg = "main$pkg" if $pkg =~ /^::/;
		3846	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3847	$pkg .= '::' unless $pkg =~ /::$/;
		3848	}
		3849
		3850	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3851	my $stem_symtab = *{$stem}{HASH};
		3852
		3853	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3854	or return;
		3855
		3856	# clear all symbols
		3857	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3858	for my $name (keys %$leaf_symtab) {
		3859	_gv_clear *{"$pkg$name"};
		3860	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3861	}
2700	}	3862	}
2701		3863
2702	sub do_reload_perl() {	3864	sub do_reload_perl() {
2703	# can/must only be called in main	3865	# can/must only be called in main
2704	if ($Coro::current != $Coro::main) {	3866	unless (in_main) {
2705	warn "can only reload from main coroutine";	3867	error "can only reload from main coroutine";
2706	return;	3868	return;
2707	}	3869	}
2708		3870
		3871	return if $RELOAD++;
		3872
		3873	my $t1 = AE::time;
		3874
		3875	while ($RELOAD) {
		3876	cf::get_slot 0.1, -1, "reload_perl";
2709	warn "reloading...";	3877	info "reloading...";
2710		3878
2711	warn "entering sync_job";	3879	trace "entering sync_job";
2712		3880
2713	cf::sync_job {	3881	cf::sync_job {
2714	cf::write_runtime; # external watchdog should not bark
2715	cf::emergency_save;	3882	#cf::emergency_save;
2716	cf::write_runtime; # external watchdog should not bark
2717		3883
2718	warn "syncing database to disk";
2719	BDB::db_env_txn_checkpoint $DB_ENV;
2720
2721	# if anything goes wrong in here, we should simply crash as we already saved
2722
2723	warn "cancelling all WF_AUTOCANCEL watchers";
2724	for (Event::all_watchers) {
2725	$_->cancel if $_->data & WF_AUTOCANCEL;
2726	}
2727
2728	warn "flushing outstanding aio requests";
2729	for (;;) {
2730	BDB::flush;
2731	IO::AIO::flush;
2732	Coro::cede;
2733	last unless IO::AIO::nreqs || BDB::nreqs;
2734	warn "iterate...";
2735	}
2736
2737	++$RELOAD;
2738
2739	warn "cancelling all extension coros";	3884	trace "cancelling all extension coros";
2740	$_->cancel for values %EXT_CORO;	3885	$_->cancel for values %EXT_CORO;
2741	%EXT_CORO = ();	3886	%EXT_CORO = ();
2742		3887
2743	warn "removing commands";	3888	trace "removing commands";
2744	%COMMAND = ();	3889	%COMMAND = ();
2745		3890
2746	warn "removing ext commands";	3891	trace "removing ext/exti commands";
2747	%EXTCMD = ();	3892	%EXTCMD = ();
		3893	%EXTICMD = ();
2748		3894
2749	warn "unloading/nuking all extensions";	3895	trace "unloading/nuking all extensions";
2750	for my $pkg (@EXTS) {	3896	for my $pkg (@EXTS) {
2751	warn "... unloading $pkg";	3897	trace "... unloading $pkg";
2752		3898
2753	if (my $cb = $pkg->can ("unload")) {	3899	if (my $cb = $pkg->can ("unload")) {
2754	eval {	3900	eval {
2755	$cb->($pkg);	3901	$cb->($pkg);
2756	1	3902	1
2757	} or warn "$pkg unloaded, but with errors: $@";	3903	} or error "$pkg unloaded, but with errors: $@";
		3904	}
		3905
		3906	trace "... clearing $pkg";
		3907	clear_package $pkg;
2758	}	3908	}
2759		3909
2760	warn "... nuking $pkg";
2761	Symbol::delete_package $pkg;
2762	}
2763
2764	warn "unloading all perl modules loaded from $LIBDIR";	3910	trace "unloading all perl modules loaded from $LIBDIR";
2765	while (my ($k, $v) = each %INC) {	3911	while (my ($k, $v) = each %INC) {
2766	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3912	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2767		3913
2768	warn "... unloading $k";	3914	trace "... unloading $k";
2769	delete $INC{$k};	3915	delete $INC{$k};
2770		3916
2771	$k =~ s/\.pm$//;	3917	$k =~ s/\.pm$//;
2772	$k =~ s/\//::/g;	3918	$k =~ s/\//::/g;
2773		3919
2774	if (my $cb = $k->can ("unload_module")) {	3920	if (my $cb = $k->can ("unload_module")) {
2775	$cb->();	3921	$cb->();
		3922	}
		3923
		3924	clear_package $k;
2776	}	3925	}
2777		3926
2778	Symbol::delete_package $k;
2779	}
2780
2781	warn "getting rid of safe::, as good as possible";	3927	trace "getting rid of safe::, as good as possible";
2782	Symbol::delete_package "safe::$_"	3928	clear_package "safe::$_"
2783	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3929	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2784		3930
2785	warn "unloading cf.pm \"a bit\"";	3931	trace "unloading cf.pm \"a bit\"";
2786	delete $INC{"cf.pm"};	3932	delete $INC{"cf.pm"};
2787	delete $INC{"cf/pod.pm"};	3933	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2788		3934
2789	# don't, removes xs symbols, too,	3935	# don't, removes xs symbols, too,
2790	# and global variables created in xs	3936	# and global variables created in xs
2791	#Symbol::delete_package __PACKAGE__;	3937	#clear_package __PACKAGE__;
2792		3938
2793	warn "unload completed, starting to reload now";	3939	info "unload completed, starting to reload now";
2794		3940
2795	warn "reloading cf.pm";	3941	trace "reloading cf.pm";
2796	require cf;	3942	require cf;
2797	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3943	cf::_connect_to_perl_1;
2798		3944
2799	warn "loading config and database again";	3945	trace "loading config and database again";
2800	cf::cfg_load;	3946	cf::reload_config;
2801		3947
2802	warn "loading extensions";	3948	trace "loading extensions";
2803	cf::load_extensions;	3949	cf::load_extensions;
2804		3950
		3951	if ($REATTACH_ON_RELOAD) {
2805	warn "reattaching attachments to objects/players";	3952	trace "reattaching attachments to objects/players";
2806	_global_reattach; # objects, sockets	3953	_global_reattach; # objects, sockets
2807	warn "reattaching attachments to maps";	3954	trace "reattaching attachments to maps";
2808	reattach $_ for values %MAP;	3955	reattach $_ for values %MAP;
2809	warn "reattaching attachments to players";	3956	trace "reattaching attachments to players";
2810	reattach $_ for values %PLAYER;	3957	reattach $_ for values %PLAYER;
		3958	}
2811		3959
		3960	trace "running post_init jobs";
		3961	(pop @POST_INIT)->(1) while @POST_INIT;
		3962
2812	warn "leaving sync_job";	3963	trace "leaving sync_job";
2813		3964
2814	1	3965	1
2815	} or do {	3966	} or do {
2816	warn $@;	3967	error $@;
2817	warn "error while reloading, exiting.";	3968	cf::cleanup "error while reloading, exiting.";
2818	exit 1;	3969	};
		3970
		3971	info "reloaded";
		3972	--$RELOAD;
2819	};	3973	}
2820		3974
2821	warn "reloaded";	3975	$t1 = AE::time - $t1;
		3976	info "reload completed in ${t1}s\n";
2822	};	3977	};
2823		3978
2824	our $RELOAD_WATCHER; # used only during reload	3979	our $RELOAD_WATCHER; # used only during reload
2825		3980
2826	sub reload_perl() {	3981	sub reload_perl() {
2827	# doing reload synchronously and two reloads happen back-to-back,	3982	# doing reload synchronously and two reloads happen back-to-back,
2828	# coro crashes during coro_state_free->destroy here.	3983	# coro crashes during coro_state_free->destroy here.
2829		3984
2830	$RELOAD_WATCHER ||= Event->timer (	3985	$RELOAD_WATCHER ||= cf::async {
2831	reentrant => 0,	3986	Coro::AIO::aio_wait cache_extensions;
2832	after => 0,	3987
2833	data => WF_AUTOCANCEL,	3988	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2834	cb => sub {
2835	do_reload_perl;	3989	do_reload_perl;
2836	undef $RELOAD_WATCHER;	3990	undef $RELOAD_WATCHER;
2837	},	3991	};
2838	);	3992	};
2839	}	3993	}
2840		3994
2841	register_command "reload" => sub {	3995	register_command "reload" => sub {
2842	my ($who, $arg) = @_;	3996	my ($who, $arg) = @_;
2843		3997
2844	if ($who->flag (FLAG_WIZ)) {	3998	if ($who->flag (FLAG_WIZ)) {
2845	$who->message ("reloading server.");	3999	$who->message ("reloading server.");
		4000	async {
		4001	$Coro::current->{desc} = "perl_reload";
2846	async { reload_perl };	4002	reload_perl;
		4003	};
2847	}	4004	}
2848	};	4005	};
2849		4006
2850	unshift @INC, $LIBDIR;	4007	#############################################################################
2851		4008
2852	my $bug_warning = 0;	4009	my $bug_warning = 0;
2853		4010
2854	our @WAIT_FOR_TICK;	4011	our @WAIT_FOR_TICK;
2855	our @WAIT_FOR_TICK_BEGIN;	4012	our @WAIT_FOR_TICK_BEGIN;
2856		4013
2857	sub wait_for_tick {	4014	sub wait_for_tick {
2858	return unless $TICK_WATCHER->is_active;
2859	return if $Coro::current == $Coro::main;	4015	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2860		4016
2861	my $signal = new Coro::Signal;	4017	my $signal = new Coro::Signal;
2862	push @WAIT_FOR_TICK, $signal;	4018	push @WAIT_FOR_TICK, $signal;
2863	$signal->wait;	4019	$signal->wait;
2864	}	4020	}
2865		4021
2866	sub wait_for_tick_begin {	4022	sub wait_for_tick_begin {
2867	return unless $TICK_WATCHER->is_active;
2868	return if $Coro::current == $Coro::main;	4023	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2869		4024
2870	my $signal = new Coro::Signal;	4025	my $signal = new Coro::Signal;
2871	push @WAIT_FOR_TICK_BEGIN, $signal;	4026	push @WAIT_FOR_TICK_BEGIN, $signal;
2872	$signal->wait;	4027	$signal->wait;
2873	}	4028	}
2874		4029
2875	my $min = 1e6;#d#	4030	sub tick {
2876	my $avg = 10;
2877	$TICK_WATCHER = Event->timer (
2878	reentrant => 0,
2879	parked => 1,
2880	prio => 0,
2881	at => $NEXT_TICK || $TICK,
2882	data => WF_AUTOCANCEL,
2883	cb => sub {
2884	if ($Coro::current != $Coro::main) {	4031	if ($Coro::current != $Coro::main) {
2885	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4032	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2886	unless ++$bug_warning > 10;	4033	unless ++$bug_warning > 10;
2887	return;	4034	return;
2888	}	4035	}
2889		4036
2890	$NOW = $tick_start = Event::time;
2891
2892	cf::server_tick; # one server iteration	4037	cf::server_tick; # one server iteration
2893		4038
2894	0 && sync_job {#d#	4039	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2895	for(1..10) {
2896	my $t = Event::time;
2897	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2898	or die;
2899		4040
2900	$map->width (50);	4041	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2901	$map->height (50);	4042	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2902	$map->alloc;	4043	Coro::async_pool {
2903	$map->_load_objects ("/tmp/x.map", 1);	4044	$Coro::current->{desc} = "runtime saver";
2904	my $t = Event::time - $t;	4045	write_runtime_sync
2905		4046	or error "ERROR: unable to write runtime file: $!";
2906	#next unless $t < 0.0013;#d#
2907	if ($t < $min) {
2908	$min = $t;
2909	}
2910	$avg = $avg * 0.99 + $t * 0.01;
2911	}
2912	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2913	exit 0;
2914	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2915	};	4047	};
		4048	}
2916		4049
2917	$RUNTIME += $TICK;
2918	$NEXT_TICK += $TICK;
2919
2920	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2921	$NEXT_RUNTIME_WRITE = $NOW + 10;
2922	Coro::async_pool {
2923	write_runtime
2924	or warn "ERROR: unable to write runtime file: $!";
2925	};
2926	}
2927
2928	# my $AFTER = Event::time;
2929	# warn $AFTER - $NOW;#d#
2930
2931	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4050	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2932	$sig->send;	4051	$sig->send;
2933	}	4052	}
2934	while (my $sig = shift @WAIT_FOR_TICK) {	4053	while (my $sig = shift @WAIT_FOR_TICK) {
2935	$sig->send;	4054	$sig->send;
2936	}	4055	}
2937		4056
2938	$NOW = Event::time;	4057	$LOAD = ($NOW - $TICK_START) / $TICK;
2939
2940	# if we are delayed by four ticks or more, skip them all
2941	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2942
2943	$TICK_WATCHER->at ($NEXT_TICK);
2944	$TICK_WATCHER->start;
2945
2946	$LOAD = ($NOW - $tick_start) / $TICK;
2947	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4058	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2948		4059
2949	_post_tick;	4060	if (0) {
2950		4061	if ($NEXT_TICK) {
2951		4062	my $jitter = $TICK_START - $NEXT_TICK;
		4063	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4064	debug "jitter $JITTER\n";#d#
		4065	}
2952	},	4066	}
2953	);	4067	}
2954		4068
2955	{	4069	{
2956	BDB::max_poll_time $TICK * 0.1;	4070	# configure BDB
2957	$BDB_POLL_WATCHER = Event->io (	4071
2958	reentrant => 0,
2959	fd => BDB::poll_fileno,
2960	poll => 'r',
2961	prio => 0,
2962	data => WF_AUTOCANCEL,
2963	cb => \&BDB::poll_cb,
2964	);
2965	BDB::min_parallel 8;	4072	BDB::min_parallel 16;
2966		4073	BDB::max_poll_reqs $TICK * 0.1;
2967	BDB::set_sync_prepare {	4074	$AnyEvent::BDB::WATCHER->priority (1);
2968	my $status;
2969	my $current = $Coro::current;
2970	(
2971	sub {
2972	$status = $!;
2973	$current->ready; undef $current;
2974	},
2975	sub {
2976	Coro::schedule while defined $current;
2977	$! = $status;
2978	},
2979	)
2980	};
2981		4075
2982	unless ($DB_ENV) {	4076	unless ($DB_ENV) {
2983	$DB_ENV = BDB::db_env_create;	4077	$DB_ENV = BDB::db_env_create;
		4078	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4079	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4080	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4081	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4082	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2984		4083
2985	cf::sync_job {	4084	cf::sync_job {
2986	eval {	4085	eval {
2987	BDB::db_env_open	4086	BDB::db_env_open
2988	$DB_ENV,	4087	$DB_ENV,
…		…
2990	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4089	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2991	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4090	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2992	0666;	4091	0666;
2993		4092
2994	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4093	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2995
2996	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2997	$DB_ENV->set_lk_detect;
2998	};	4094	};
2999		4095
3000	cf::cleanup "db_env_open(db): $@" if $@;	4096	cf::cleanup "db_env_open(db): $@" if $@;
3001	};	4097	};
3002	}	4098	}
		4099
		4100	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4101	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4102	};
		4103	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4104	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4105	};
		4106	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4107	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4108	};
3003	}	4109	}
3004		4110
3005	{	4111	{
		4112	# configure IO::AIO
		4113
3006	IO::AIO::min_parallel 8;	4114	IO::AIO::min_parallel 8;
3007
3008	undef $Coro::AIO::WATCHER;
3009	IO::AIO::max_poll_time $TICK * 0.1;	4115	IO::AIO::max_poll_time $TICK * 0.1;
3010	$AIO_POLL_WATCHER = Event->io (	4116	undef $AnyEvent::AIO::WATCHER;
3011	reentrant => 0,
3012	data => WF_AUTOCANCEL,
3013	fd => IO::AIO::poll_fileno,
3014	poll => 'r',
3015	prio => 6,
3016	cb => \&IO::AIO::poll_cb,
3017	);
3018	}	4117	}
3019		4118
3020	my $_log_backtrace;	4119	my $_log_backtrace;
3021		4120
3022	sub _log_backtrace {	4121	sub _log_backtrace {
…		…
3025	$msg =~ s/\n//;	4124	$msg =~ s/\n//;
3026		4125
3027	# limit the # of concurrent backtraces	4126	# limit the # of concurrent backtraces
3028	if ($_log_backtrace < 2) {	4127	if ($_log_backtrace < 2) {
3029	++$_log_backtrace;	4128	++$_log_backtrace;
		4129	my $perl_bt = Carp::longmess $msg;
3030	async {	4130	async {
		4131	$Coro::current->{desc} = "abt $msg";
		4132
3031	my @bt = fork_call {	4133	my @bt = fork_call {
3032	@addr = map { sprintf "%x", $_ } @addr;	4134	@addr = map { sprintf "%x", $_ } @addr;
3033	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4135	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3034	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4136	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3035	or die "addr2line: $!";	4137	or die "addr2line: $!";
…		…
3043	}	4145	}
3044		4146
3045	@funcs	4147	@funcs
3046	};	4148	};
3047		4149
3048	LOG llevInfo, "[ABT] $msg\n";	4150	LOG llevInfo, "[ABT] $perl_bt\n";
		4151	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3049	LOG llevInfo, "[ABT] $_\n" for @bt;	4152	LOG llevInfo, "[ABT] $_\n" for @bt;
3050	--$_log_backtrace;	4153	--$_log_backtrace;
3051	};	4154	};
3052	} else {	4155	} else {
3053	LOG llevInfo, "[ABT] $msg\n";	4156	LOG llevInfo, "[ABT] $msg\n";
3054	LOG llevInfo, "[ABT] [suppressed]\n";	4157	LOG llevInfo, "[ABT] [suppressed]\n";
3055	}	4158	}
3056	}	4159	}
3057		4160
3058	# load additional modules	4161	# load additional modules
3059	use cf::pod;	4162	require "cf/$_.pm" for @EXTRA_MODULES;
		4163	cf::_connect_to_perl_2;
3060		4164
3061	END { cf::emergency_save }	4165	END { cf::emergency_save }
3062		4166
3063	1	4167	1
3064		4168

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