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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.269 by root, Tue May 22 21:35:26 2007 UTC vs.
Revision 1.508 by root, Sun Mar 28 22:29:50 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	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	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
98		147
99	binmode STDOUT;	148	binmode STDOUT;
100	binmode STDERR;	149	binmode STDERR;
101		150
102	# read virtual server time, if available	151	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
107	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
108		159
109	mkdir $_	160	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		162
112	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
113		164
114	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		177
116	#############################################################################	178	#############################################################################
117		179
118	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
119		181
…		…
155		217
156	The raw value load value from the last tick.	218	The raw value load value from the last tick.
157		219
158	=item %cf::CFG	220	=item %cf::CFG
159		221
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	223	from wherever your confdir points to.
162		224
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		226
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	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	228	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.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
169	=back	243	=back
170		244
171	=cut	245	=cut
172		246
173	BEGIN {	247	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	248	my $msg = join "", @_;
176		249
177	$msg .= "\n"	250	$msg .= "\n"
178	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
179		252
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		254
182	utf8::encode $msg;
183	LOG llevError, $msg;	255	LOG llevError, $msg;
184	};	256	};
185	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
186		271
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		279
194	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	281	# within the Safe compartment.
196	for my $pkg (qw(	282	for my $pkg (qw(
197	cf::global cf::attachable	283	cf::global cf::attachable
198	cf::object cf::object::player	284	cf::object cf::object::player
199	cf::client cf::player	285	cf::client cf::player
200	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
201	cf::map cf::party cf::region	288	cf::party cf::region
202	)) {	289	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	291	}
206		292
207	$Event::DIED = sub {	293	$EV::DIED = sub {
208	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
209	};	295	};
		296
		297	#############################################################################
210		298
211	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
212		300
213	=over 4	301	=over 4
214		302
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	322	$d
235	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
236	}	324	}
237		325
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
241		327
242	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
243		329
244	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
245		331
246	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
247		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
248	=item cf::lock_wait $string	355	=item cf::lock_wait $string
249		356
250	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
251		358
252	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
253		360
254	Wait until the given lock is available and then acquires it and returns	361	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,	362	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	363	for example when the coroutine gets canceled), the lock is automatically
257	returned.	364	returned.
258		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
259	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
261		371
262	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
263		373
264	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
265		375
266	=cut	376	=cut
267		377
268	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
269		379
270	sub lock_wait($) {	380	sub lock_wait($) {
271	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	382	}
279		383
280	sub lock_acquire($) {	384	sub lock_acquire($) {
281	my ($key) = @_;	385	$LOCKS->guard ($_[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	}	386	}
293		387
294	sub lock_active($) {	388	sub lock_active($) {
295	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	390	}
299		391
300	sub freeze_mainloop {	392	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
302		394
303	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
305	};	462	}
306	$TICK_WATCHER->stop;	463	};
307	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
308	}	478	}
309		479
310	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
311		481
312	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		487
318	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
319		489
320	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
321		491
322	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
325		496
326	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
329	fast or be very important.	500	fast or be very important.
…		…
332		503
333	sub sync_job(&) {	504	sub sync_job(&) {
334	my ($job) = @_;	505	my ($job) = @_;
335		506
336	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	508	my $time = EV::time;
338		509
339	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
341		512
342	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	514
344	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
345		516
346	my $busy = 1;	517	my $busy = 1;
347	my @res;	518	my @res;
348		519
349	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	522	@res = eval { $job->() };
351	warn $@ if $@;	523	warn $@ if $@;
352	undef $busy;	524	undef $busy;
353	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
354		526
355	while ($busy) {	527	while ($busy) {
356	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
357	}	532	}
		533	}
358		534
359	$time = Event::time - $time;	535	my $time = EV::time - $time;
360		536
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	537	$TICK_START += $time; # do not account sync jobs to server load
365		538
366	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
367	} else {	540	} else {
368	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
369		542
…		…
389	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
390		563
391	$coro	564	$coro
392	}	565	}
393		566
394	sub write_runtime {	567	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		568
397	# first touch the runtime file to show we are still running:	569	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
399		573
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	574	=cut
401	utime undef, undef, $fh;	575
		576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
		578
		579	# we seemingly have to make a local copy of the whole thing,
		580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
		582
		583	my @res = Coro::Util::fork_eval {
		584	reset_signals;
		585	&$cb
		586	}, @args;
		587
		588	wantarray ? @res : $res[-1]
		589	}
		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
402	}	645	};
		646	cf::cleanup "db_open(db): $@" if $@;
403		647
404	my $guard = cf::lock_acquire "write_runtime";	648	$db
		649	}
405		650
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	651	our $DB;
407	or return;
408		652
409	my $value = $cf::RUNTIME + 90 + 10;	653	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	654	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	655	$DB ||= db_table "db";
		656	};
		657	}
412		658
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	659	sub db_get($$) {
414	and return;	660	my $key = "$_[0]/$_[1]";
415		661
416	# always fsync - this file is important	662	cf::sync_job {
417	aio_fsync $fh	663	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		664
420	# touch it again to show we are up-to-date	665	$! ? ()
421	utime undef, undef, $fh;	666	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
432	}	743	}
433		744
434	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
435		746
436	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
448		759
449	#############################################################################	760	#############################################################################
450		761
451	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
452		763
453	Many objects in crossfire are so-called attachable objects. That means you can	764	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")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
456		767
457	In the following description, CLASS can be any of C<global>, C<object>	768	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	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	770	Deliantra).
460		771
461	=over 4	772	=over 4
462		773
463	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
464		775
…		…
508	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
509		820
510	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
512		823
513	Some classes such as crossfire maps and objects can specify attachments	824	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.	825	that are attached at load/instantiate time, thus the need for a name.
515		826
516	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
517		828
518	=over 4	829	=over 4
…		…
666	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
667	}	978	}
668		979
669	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
670	} else {	981	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	983	}
673		984
674	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
675	}	986	}
676		987
…		…
716	";	1027	";
717	die if $@;	1028	die if $@;
718	}	1029	}
719		1030
720	our $override;	1031	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		1033
723	sub override {	1034	sub override {
724	$override = 1;	1035	$override = 1;
725	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
726	}	1037	}
727		1038
728	sub do_invoke {	1039	sub do_invoke {
729	my $event = shift;	1040	my $event = shift;
730	my $callbacks = shift;	1041	my $callbacks = shift;
731		1042
732	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
733		1044
734	local $override;	1045	local $override;
735		1046
736	for (@$callbacks) {	1047	for (@$callbacks) {
737	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
746	}	1057	}
747		1058
748	0	1059	0
749	}	1060	}
750		1061
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1063
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1065
755	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
756		1067
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	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	1069	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1071
761	=back	1072	=back
762		1073
763	=cut	1074	=cut
764		1075
765	#############################################################################	1076	#############################################################################
766	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
767		1120
768	sub reattach {	1121	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1123	my ($obj) = @_;
771		1124
		1125	# no longer needed after getting rid of delete_package?
772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
773		1127
774	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
775		1129
776	@$registry = ();	1130	@$registry = ();
777		1131
…		…
792	cf::attachable->attach (	1146	cf::attachable->attach (
793	prio => -1000000,	1147	prio => -1000000,
794	on_instantiate => sub {	1148	on_instantiate => sub {
795	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
796		1150
797	$data = from_json $data;	1151	$data = decode_json $data;
798		1152
799	for (@$data) {	1153	for (@$data) {
800	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
801		1155
802	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1172	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
820		1174
821	sync_job {	1175	sync_job {
822	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
825		1180
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
830	close $fh;	1188	aio_close $fh;
831		1189
832	if (@$objs) {	1190	if (@$objs) {
833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
834	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
837	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	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;
		1197	aio_fsync $fh;
		1198	}
838	close $fh;	1199	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
840	}	1201	}
841	} else {	1202	} else {
842	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
843	}	1204	}
844		1205
845	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1210	} else {
847	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
848	}	1212	}
849	} else {	1213	} else {
850	aio_unlink $filename;	1214	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
852	}	1216	}
853	}	1217	};
854	}	1218	}
855		1219
856	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
858		1222
…		…
870	or return;	1234	or return;
871		1235
872	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
874	or return;	1238	or return;
		1239
875	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
876	}	1242	}
877		1243
		1244	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
880	return ($data, $av);	1248	($data, $av)
881	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
882		1256
883	#############################################################################	1257	#############################################################################
884	# command handling &c	1258	# command handling &c
885		1259
886	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1274	}
901		1275
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1277
904	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
905		1283
906	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
907	called.	1285	called.
908		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
909	=cut	1298	=cut
910		1299
911	sub register_extcmd {	1300	sub register_extcmd {
912	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
913		1302
914	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
915	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
916		1313
917	cf::player->attach (	1314	cf::player->attach (
918	on_command => sub {	1315	on_command => sub {
919	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
920		1317
…		…
928	cf::override;	1325	cf::override;
929	},	1326	},
930	on_extcmd => sub {	1327	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
932		1329
933	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1331
935	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
941	} else {	1347	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1349	}
944		1350
945	cf::override;	1351	cf::override;
946	},	1352	},
947	);	1353	);
948		1354
		1355	# "readahead" all extensions
949	sub load_extension {	1356	sub cache_extensions {
950	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
951		1358
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1361	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	}	1362	}
977	die $@;
978	}	1363	};
979		1364
980	push @EXTS, $pkg;	1365	$grp
981	}	1366	}
982		1367
983	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
984	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1373	next unless -r $path;
986	eval {	1374
987	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
988	1	1435	}
989	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
990	}	1446	};
991	}	1447	}
992		1448
993	#############################################################################	1449	#############################################################################
994		1450
		1451	=back
		1452
995	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
996		1454
997	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
998		1456
999	=cut	1457	=cut
1000		1458
1001	package cf::player;	1459	package cf::player;
1002		1460
1003	use Coro::AIO;	1461	use Coro::AIO;
1004		1462
1005	=head3 cf::player	1463	=head3 cf::player
1006		1464
1007	=over 4	1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
1008		1480
1009	=item cf::player::find $login	1481	=item cf::player::find $login
1010		1482
1011	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
1012		1484
…		…
1031		1503
1032	sub exists($) {	1504	sub exists($) {
1033	my ($login) = @_;	1505	my ($login) = @_;
1034		1506
1035	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
1037	}	1509	}
1038		1510
1039	sub find($) {	1511	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1513	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1524
1053	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1054	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
1055	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1056	}	1534	}
1057	}	1535	}
1058	}	1536	}
1059		1537
…		…
1068	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1069		1547
1070	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1072		1550
		1551	cf::get_slot 0.01;
		1552
1073	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1074	Coro::cede;	1554	cf::cede_to_tick;
1075	}	1555	}
1076		1556
1077	sub new($) {	1557	sub new($) {
1078	my ($login) = @_;	1558	my ($login) = @_;
1079		1559
…		…
1085	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1086		1566
1087	$self	1567	$self
1088	}	1568	}
1089		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
1090	=item $pl->quit_character	1580	=item $pl->quit_character
1091		1581
1092	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1094		1584
…		…
1098	my ($pl) = @_;	1588	my ($pl) = @_;
1099		1589
1100	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1101		1591
1102	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1103	$pl->password ("*"); # this should lock out the player until we nuked the dir	1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1104		1594
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1106	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1108	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1109		1601
1110	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1147	or return [];	1639	or return [];
1148		1640
1149	my @logins;	1641	my @logins;
1150		1642
1151	for my $login (@$dirs) {	1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1155		1653
1156	utf8::decode $login;	1654	utf8::decode $login;
1157	push @logins, $login;	1655	push @logins, $login;
1158	}	1656	}
1159		1657
…		…
1186	}	1684	}
1187		1685
1188	\@paths	1686	\@paths
1189	}	1687	}
1190		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1191	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1192		1694
1193	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1194		1696
1195	=cut	1697	=cut
1196		1698
1197	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1198	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1199		1701
1200	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1703	}
1204		1704
1205	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1206		1706
1207	Sends an ext event to the client.	1707	Sends an ext event to the client.
1208		1708
1209	=cut	1709	=cut
1210		1710
1211	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1213		1713
1214	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1215	}	1715	}
1216		1716
1217	=head3 cf::region	1717	=head3 cf::region
1218		1718
1219	=over 4	1719	=over 4
…		…
1222		1722
1223	package cf::region;	1723	package cf::region;
1224		1724
1225	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1226		1726
1227	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1228		1728
1229	=cut	1729	=cut
1230		1730
1231	sub find_by_path($) {	1731	sub find_by_path($) {
1232	my ($path) = @_;	1732	my ($path) = @_;
1233		1733
1234	my ($match, $specificity);	1734	my ($match, $specificity);
1235		1735
1236	for my $region (list) {	1736	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1240	}	1740	}
1241	}	1741	}
1242		1742
…		…
1263	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1265		1765
1266	sub generate_random_map {	1766	sub generate_random_map {
1267	my ($self, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
1268	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1269	$self->_create_random_map (	1772	$self->_create_random_map (
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1273	$rmp->{exit_on_final_map},	1776	$rmp->{exit_on_final_map},
1274	$rmp->{xsize}, $rmp->{ysize},	1777	$rmp->{xsize}, $rmp->{ysize},
1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1778	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1779	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1306	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1307		1810
1308	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1309	local $self->{path};	1812	local $self->{path};
1310	local $self->{load_path};	1813	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1814
1314	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1315	}	1816	}
1316		1817
1317	sub normalise {	1818	sub normalise {
…		…
1364	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1365	return $self;	1866	return $self;
1366	}	1867	}
1367	}	1868	}
1368		1869
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1370	()	1871	()
1371	}	1872	}
1372		1873
1373	sub init {	1874	sub init {
1374	my ($self) = @_;	1875	my ($self) = @_;
…		…
1396		1897
1397	# the temporary/swap location	1898	# the temporary/swap location
1398	sub save_path {	1899	sub save_path {
1399	my ($self) = @_;	1900	my ($self) = @_;
1400		1901
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	1903	"$TMPDIR/$path.map"
1403	}	1904	}
1404		1905
1405	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1406	sub uniq_path {	1907	sub uniq_path {
1407	my ($self) = @_;	1908	my ($self) = @_;
1408		1909
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	1911	"$UNIQUEDIR/$path"
1411	}	1912	}
1412		1913
1413	# and all this just because we cannot iterate over	1914	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	1915	my ($self) = @_;
1417		1916
1418	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1420	}	1920	}
1421		1921
1422	sub unlink_save {	1922	sub unlink_save {
1423	my ($self) = @_;	1923	my ($self) = @_;
1424		1924
…		…
1429		1929
1430	sub load_header_from($) {	1930	sub load_header_from($) {
1431	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1432		1932
1433	utf8::encode $path;	1933	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	or return;	1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
1439		1942
1440	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1441		1944
1442	1	1945	1
1443	}	1946	}
…		…
1482	$self->load_header_orig	1985	$self->load_header_orig
1483	or return;	1986	or return;
1484	$self->prepare_orig;	1987	$self->prepare_orig;
1485	}	1988	}
1486		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1487	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1994	unless $self->default_region;
1489		1995
1490	1	1996	1
1491	}	1997	}
…		…
1494	sub find {	2000	sub find {
1495	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1496		2002
1497	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1498		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1500		2007
1501	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1504	or return;	2010	or return;
1505		2011
1506	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1507		2013
1508	$map->load_header	2014	$map->load_header
1509	or return;	2015	or return;
1510		2016
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1514	$map->reset;	2022	$map->reset;
1515	undef $guard;
1516	return find $path;	2023	return find $path;
1517	}	2024	}
1518		2025
1519	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1520	}	2027	}
1521	}	2028	}
1522		2029
1523	sub pre_load { }	2030	sub pre_load { }
1524	sub post_load { }	2031	#sub post_load { } # XS
1525		2032
1526	sub load {	2033	sub load {
1527	my ($self) = @_;	2034	my ($self) = @_;
1528		2035
1529	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1530		2037
1531	my $path = $self->{path};	2038	my $path = $self->{path};
1532		2039
1533	{	2040	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1535		2042
		2043	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1537		2045
1538	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1539		2047
1540	$self->alloc;	2048	$self->alloc;
1541		2049
1542	$self->pre_load;	2050	$self->pre_load;
1543	Coro::cede;	2051	cf::cede_to_tick;
1544		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
1545	$self->_load_objects ($self->{load_path}, 1)	2055	$self->_load_objects ($f)
1546	or return;	2056	or return;
1547		2057
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1549	if delete $self->{load_original};	2059	if delete $self->{load_original};
1550		2060
1551	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2062	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2065	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1556	}	2069	}
1557	}	2070	}
1558		2071
1559	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1560	# now do the right thing for maps	2075	# now do the right thing for maps
1561	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2078	unless $self->difficulty;
1564	Coro::cede;	2079	cf::cede_to_tick;
1565		2080
1566	unless ($self->{deny_activate}) {	2081	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2082	$self->decay_objects;
1568	$self->fix_auto_apply;	2083	$self->fix_auto_apply;
1569	$self->update_buttons;	2084	$self->update_buttons;
1570	Coro::cede;	2085	cf::cede_to_tick;
1571	$self->set_darkness_map;
1572	Coro::cede;
1573	$self->activate;	2086	$self->activate;
1574	}	2087	}
1575		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2092	$self->in_memory (cf::MAP_ACTIVE);
1577	}	2093	}
1578		2094
1579	$self->post_load;	2095	$self->post_load;
1580	}	2096	}
1581		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
1582	sub customise_for {	2101	sub customise_for {
1583	my ($self, $ob) = @_;	2102	my ($self, $ob) = @_;
1584		2103
1585	return find "~" . $ob->name . "/" . $self->{path}	2104	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2105	if $self->per_player;
1587		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
1588	$self	2110	$self
1589	}	2111	}
1590		2112
1591	# find and load all maps in the 3x3 area around a map	2113	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	2114	sub load_neighbours {
1593	my ($map) = @_;	2115	my ($map) = @_;
1594		2116
1595	my @diag; # diagonal neighbours	2117	my @neigh; # diagonal neighbours
1596		2118
1597	for (0 .. 3) {	2119	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)	2120	my $neigh = $map->tile_path ($_)
1599	or next;	2121	or next;
1600	$neigh = find $neigh, $map	2122	$neigh = find $neigh, $map
1601	or next;	2123	or next;
1602	$neigh->load;	2124	$neigh->load;
1603		2125
		2126	push @neigh,
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}	2129	}
1607		2130
1608	for (@diag) {	2131	for (grep defined $_->[0], @neigh) {
		2132	my ($path, $origin) = @$_;
1609	my $neigh = find @$_	2133	my $neigh = find $path, $origin
1610	or next;	2134	or next;
1611	$neigh->load;	2135	$neigh->load;
1612	}	2136	}
1613	}	2137	}
1614		2138
…		…
1619	}	2143	}
1620		2144
1621	sub do_load_sync {	2145	sub do_load_sync {
1622	my ($map) = @_;	2146	my ($map) = @_;
1623		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
1624	cf::sync_job { $map->load };	2151	cf::sync_job { $map->load };
1625	}	2152	}
1626		2153
1627	our %MAP_PREFETCH;	2154	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2155	our $MAP_PREFETCHER = undef;
1629		2156
1630	sub find_async {	2157	sub find_async {
1631	my ($path, $origin) = @_;	2158	my ($path, $origin, $load) = @_;
1632		2159
1633	$path = normalise $path, $origin && $origin->{path};	2160	$path = normalise $path, $origin && $origin->{path};
1634		2161
1635	if (my $map = $cf::MAP{$path}) {	2162	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1637	}	2164	}
1638		2165
1639	undef $MAP_PREFETCH{$path};	2166	$MAP_PREFETCH{$path} |= $load;
		2167
1640	$MAP_PREFETCHER ||= cf::async {	2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
1641	while (%MAP_PREFETCH) {	2171	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2172	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2173	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2174	$map->load if $v;
		2175	}
1646		2176
1647	delete $MAP_PREFETCH{$path};	2177	delete $MAP_PREFETCH{$k};
1648	}	2178	}
1649	}	2179	}
1650	undef $MAP_PREFETCHER;	2180	undef $MAP_PREFETCHER;
1651	};	2181	};
1652	$MAP_PREFETCHER->prio (6);	2182	$MAP_PREFETCHER->prio (6);
…		…
1655	}	2185	}
1656		2186
1657	sub save {	2187	sub save {
1658	my ($self) = @_;	2188	my ($self) = @_;
1659		2189
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1661		2191
1662	$self->{last_save} = $cf::RUNTIME;	2192	$self->{last_save} = $cf::RUNTIME;
1663		2193
1664	return unless $self->dirty;	2194	return unless $self->dirty;
1665		2195
…		…
1671	return if $self->{deny_save};	2201	return if $self->{deny_save};
1672		2202
1673	local $self->{last_access} = $self->last_access;#d#	2203	local $self->{last_access} = $self->last_access;#d#
1674		2204
1675	cf::async {	2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2207	$_->contr->save for $self->players;
1677	};	2208	};
		2209
		2210	cf::get_slot 0.02;
1678		2211
1679	if ($uniq) {	2212	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2215	} else {
…		…
1688	my ($self) = @_;	2221	my ($self) = @_;
1689		2222
1690	# save first because save cedes	2223	# save first because save cedes
1691	$self->save;	2224	$self->save;
1692		2225
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2227
1695	return if $self->players;	2228	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;	2229	return if $self->in_memory != cf::MAP_ACTIVE;
1697	return if $self->{deny_save};	2230	return if $self->{deny_save};
1698		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
1699	$self->clear;	2236	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2237	}
1702		2238
1703	sub reset_at {	2239	sub reset_at {
1704	my ($self) = @_;	2240	my ($self) = @_;
1705		2241
1706	# TODO: safety, remove and allow resettable per-player maps	2242	# 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};	2243	return 1e99 if $self->{deny_reset};
1709		2244
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2247
…		…
1723	my ($self) = @_;	2258	my ($self) = @_;
1724		2259
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2261
1727	return if $self->players;	2262	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2263
1730	warn "resetting map ", $self->path;#d#	2264	warn "resetting map ", $self->path, "\n";
1731		2265
1732	$self->in_memory (cf::MAP_SWAPPED);	2266	$self->in_memory (cf::MAP_SWAPPED);
1733		2267
1734	# need to save uniques path	2268	# need to save uniques path
1735	unless ($self->{deny_save}) {	2269	unless ($self->{deny_save}) {
…		…
1739	if $uniq;	2273	if $uniq;
1740	}	2274	}
1741		2275
1742	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1743		2277
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2280	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2281
1748	$self->unlink_save;	2282	$self->unlink_save;
1749	$self->destroy;	2283	$self->destroy;
1750	}	2284	}
1751		2285
1752	my $nuke_counter = "aaaa";	2286	my $nuke_counter = "aaaa";
1753		2287
1754	sub nuke {	2288	sub nuke {
1755	my ($self) = @_;	2289	my ($self) = @_;
1756		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
1757	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1758		2295
1759	$self->unlink_save;	2296	$self->unlink_save;
1760		2297
1761	bless $self, "cf::map";	2298	bless $self, "cf::map";
1762	delete $self->{deny_reset};	2299	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2300	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2301	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2303
1767	$cf::MAP{$self->path} = $self;	2304	$cf::MAP{$self->path} = $self;
		2305	}
1768		2306
1769	$self->reset; # polite request, might not happen	2307	$self->reset; # polite request, might not happen
		2308	}
		2309
		2310	=item $maps = cf::map::tmp_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	maps. May block.
		2314
		2315	=cut
		2316
		2317	sub tmp_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise $_
		2323	: ()
		2324	} @{ aio_readdir $TMPDIR or [] }
		2325	]
		2326	}
		2327
		2328	=item $maps = cf::map::random_maps
		2329
		2330	Returns an arrayref with all map paths of currently instantiated and saved
		2331	random maps. May block.
		2332
		2333	=cut
		2334
		2335	sub random_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise "?random/$_"
		2341	: ()
		2342	} @{ aio_readdir $RANDOMDIR or [] }
		2343	]
1770	}	2344	}
1771		2345
1772	=item cf::map::unique_maps	2346	=item cf::map::unique_maps
1773		2347
1774	Returns an arrayref of paths of all shared maps that have	2348	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2349	instantiated unique items. May block.
1776		2350
1777	=cut	2351	=cut
1778		2352
1779	sub unique_maps() {	2353	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2354	[
1781	or return;	2355	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2356	utf8::decode $_;
1787	next if /\.pst$/;	2357	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2359	? ()
1790	push @paths, cf::map::normalise $_;	2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2362	]
1792
1793	\@paths
1794	}	2363	}
1795		2364
1796	package cf;	2365	=item cf::map::static_maps
		2366
		2367	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2368	file in the shared directory excluding F</styles> and F</editor>). May
		2369	block.
		2370
		2371	=cut
		2372
		2373	sub static_maps() {
		2374	my @dirs = "";
		2375	my @maps;
		2376
		2377	while (@dirs) {
		2378	my $dir = shift @dirs;
		2379
		2380	next if $dir eq "/styles" || $dir eq "/editor";
		2381
		2382	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2383	or return;
		2384
		2385	for (@$files) {
		2386	s/\.map$// or next;
		2387	utf8::decode $_;
		2388	push @maps, "$dir/$_";
		2389	}
		2390
		2391	push @dirs, map "$dir/$_", @$dirs;
		2392	}
		2393
		2394	\@maps
		2395	}
1797		2396
1798	=back	2397	=back
1799		2398
1800	=head3 cf::object	2399	=head3 cf::object
1801		2400
…		…
1805		2404
1806	=over 4	2405	=over 4
1807		2406
1808	=item $ob->inv_recursive	2407	=item $ob->inv_recursive
1809		2408
1810	Returns the inventory of the object _and_ their inventories, recursively.	2409	Returns the inventory of the object I<and> their inventories, recursively,
		2410	but I<not> the object itself.
1811		2411
1812	=cut	2412	=cut
1813		2413
1814	sub inv_recursive_;	2414	sub inv_recursive_;
1815	sub inv_recursive_ {	2415	sub inv_recursive_ {
…		…
1818		2418
1819	sub inv_recursive {	2419	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2420	inv_recursive_ inv $_[0]
1821	}	2421	}
1822		2422
		2423	=item $ref = $ob->ref
		2424
		2425	Creates and returns a persistent reference to an object that can be stored as a string.
		2426
		2427	=item $ob = cf::object::deref ($refstring)
		2428
		2429	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2430	even if the object actually exists. May block.
		2431
		2432	=cut
		2433
		2434	sub deref {
		2435	my ($ref) = @_;
		2436
		2437	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2438	my ($uuid, $name) = ($1, $2);
		2439	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2440	or return;
		2441	$pl->ob->uuid eq $uuid
		2442	or return;
		2443
		2444	$pl->ob
		2445	} else {
		2446	warn "$ref: cannot resolve object reference\n";
		2447	undef
		2448	}
		2449	}
		2450
1823	package cf;	2451	package cf;
1824		2452
1825	=back	2453	=back
1826		2454
1827	=head3 cf::object::player	2455	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2461	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	2462	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
1836		2464
1837	=cut	2465	=cut
		2466
		2467	our $SAY_CHANNEL = {
		2468	id => "say",
		2469	title => "Map",
		2470	reply => "say ",
		2471	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2472	};
		2473
		2474	our $CHAT_CHANNEL = {
		2475	id => "chat",
		2476	title => "Chat",
		2477	reply => "chat ",
		2478	tooltip => "Player chat and shouts, global to the server.",
		2479	};
1838		2480
1839	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2482	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2483	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
1844		2486
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2488
1847	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
1849	} else {	2492	} else {
		2493	my $pl = $self->contr;
		2494
		2495	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2496	my $dialog = $pl->{npc_dialog};
		2497	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2498
		2499	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
1852	}	2503	}
		2504	}
		2505
		2506	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	=cut
		2509
		2510	sub cf::object::send_msg {
		2511	my $pl = shift->contr
		2512	or return;
		2513	$pl->send_msg (@_);
1853	}	2514	}
1854		2515
1855	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
1856		2517
1857	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
1870		2531
1871	=item $player_object->enter_link	2532	=item $player_object->enter_link
1872		2533
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2534	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2535
1875	The player should be reasonably safe there for short amounts of time. You	2536	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.	2537	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2538	though, as the palyer cannot control the character while it is on the link
		2539	map.
1877		2540
1878	Will never block.	2541	Will never block.
1879		2542
1880	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1881		2544
…		…
1904	$self->deactivate_recursive;	2567	$self->deactivate_recursive;
1905		2568
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2570
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1910		2573
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1912	}	2575	}
1913		2576
1914	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1916		2581
1917	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1918		2583
1919	unless ($map) {	2584	unless ($map) {
1920	# restore original map position	2585	# restore original map position
…		…
1931	($x, $y) = (-1, -1)	2596	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2597	unless (defined $x) && (defined $y);
1933		2598
1934	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2601	if $x <= 0 && $y <= 0;
1937		2602
1938	$map->load;	2603	$map->load;
1939	$map->load_diag;	2604	$map->load_neighbours;
1940		2605
1941	return unless $self->contr->active;	2606	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2607
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2608	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2609	$self->enter_map ($map, $x, $y);
1946	}
1947		2610
1948	cf::player->attach (	2611	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2612	$self->activate_recursive;
1950	my ($pl) = @_;	2613	}
1951		2614
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961
1962	# try to abort aborted map switching on player login :)
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
1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2615	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1981		2616
1982	Moves the player to the given map-path and coordinates by first freezing	2617	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	2618	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	2619	that has to return the map if sucecssful, and then unfreezes the player on
1985	the new (success) or old (failed) map position.	2620	the new (success) or old (failed) map position. In either case, $done will
		2621	be called at the end of this process.
1986		2622
		2623	Note that $check will be called with a potentially non-loaded map, so if
		2624	it needs a loaded map it has to call C<< ->load >>.
		2625
1987	=cut	2626	=cut
		2627
		2628	our $GOTOGEN;
1988		2629
1989	sub cf::object::player::goto {	2630	sub cf::object::player::goto {
1990	my ($self, $path, $x, $y, $check) = @_;	2631	my ($self, $path, $x, $y, $check, $done) = @_;
		2632
		2633	# do generation counting so two concurrent goto's will be executed in-order
		2634	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1991		2635
1992	$self->enter_link;	2636	$self->enter_link;
1993		2637
1994	(async {	2638	(async {
		2639	$Coro::current->{desc} = "player::goto $path $x $y";
		2640
		2641	# *tag paths override both path and x|y
		2642	if ($path =~ /^\*(.*)$/) {
		2643	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2644	my $ob = $obs[rand @obs];
		2645
		2646	# see if we actually can go there
		2647	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2648	$ob = $obs[rand @obs];
		2649	} else {
		2650	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	}
		2652	# else put us there anyways for now #d#
		2653
		2654	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2655	} else {
		2656	($path, $x, $y) = (undef, undef, undef);
		2657	}
		2658	}
		2659
1995	my $map = eval {	2660	my $map = eval {
1996	my $map = cf::map::find $path;	2661	my $map = defined $path ? cf::map::find $path : undef;
1997		2662
1998	if ($map) {	2663	if ($map) {
1999	$map = $map->customise_for ($self);	2664	$map = $map->customise_for ($self);
2000	$map = $check->($map) if $check && $map;	2665	$map = $check->($map) if $check && $map;
2001	} else {	2666	} else {
2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2667	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2003	}	2668	}
2004		2669
2005	$map	2670	$map
2006	};	2671	};
2007		2672
2008	if ($@) {	2673	if ($@) {
2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);	2674	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2010	LOG llevError | logBacktrace, Carp::longmess $@;	2675	LOG llevError | logBacktrace, Carp::longmess $@;
2011	}	2676	}
2012		2677
		2678	if ($gen == $self->{_goto_generation}) {
		2679	delete $self->{_goto_generation};
2013	$self->leave_link ($map, $x, $y);	2680	$self->leave_link ($map, $x, $y);
		2681	}
		2682
		2683	$done->() if $done;
2014	})->prio (1);	2684	})->prio (1);
2015	}	2685	}
2016		2686
2017	=item $player_object->enter_exit ($exit_object)	2687	=item $player_object->enter_exit ($exit_object)
2018		2688
…		…
2038	}	2708	}
2039		2709
2040	sub prepare_random_map {	2710	sub prepare_random_map {
2041	my ($exit) = @_;	2711	my ($exit) = @_;
2042		2712
2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
2044
2045	# all this does is basically replace the /! path by	2713	# all this does is basically replace the /! path by
2046	# a new random map path (?random/...) with a seed	2714	# a new random map path (?random/...) with a seed
2047	# that depends on the exit object	2715	# that depends on the exit object
2048		2716
2049	my $rmp = parse_random_map_params $exit->msg;	2717	my $rmp = parse_random_map_params $exit->msg;
…		…
2051	if ($exit->map) {	2719	if ($exit->map) {
2052	$rmp->{region} = $exit->region->name;	2720	$rmp->{region} = $exit->region->name;
2053	$rmp->{origin_map} = $exit->map->path;	2721	$rmp->{origin_map} = $exit->map->path;
2054	$rmp->{origin_x} = $exit->x;	2722	$rmp->{origin_x} = $exit->x;
2055	$rmp->{origin_y} = $exit->y;	2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
2056	}	2726	}
2057		2727
2058	$rmp->{random_seed} ||= $exit->random_seed;	2728	$rmp->{random_seed} ||= $exit->random_seed;
2059		2729
2060	my $data = cf::to_json $rmp;	2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2061	my $md5 = Digest::MD5::md5_hex $data;	2731	my $md5 = Digest::MD5::md5_hex $data;
2062	my $meta = "$RANDOMDIR/$md5.meta";	2732	my $meta = "$RANDOMDIR/$md5.meta";
2063		2733
2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2065	aio_write $fh, 0, (length $data), $data, 0;	2735	aio_write $fh, 0, (length $data), $data, 0;
2066	undef $fh;	2736	undef $fh;
2067	aio_rename "$meta~", $meta;	2737	aio_rename "$meta~", $meta;
2068		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
2069	$exit->slaying ("?random/$md5");	2742	$exit->slaying ("?random/$md5");
2070	$exit->msg (undef);	2743	$exit->msg (undef);
		2744	}
2071	}	2745	}
2072	}	2746	}
2073		2747
2074	sub cf::object::player::enter_exit {	2748	sub cf::object::player::enter_exit {
2075	my ($self, $exit) = @_;	2749	my ($self, $exit) = @_;
2076		2750
2077	return unless $self->type == cf::PLAYER;	2751	return unless $self->type == cf::PLAYER;
2078		2752
2079	if ($exit->slaying eq "/!") {
2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
2081	# the problem is that $exit might not survive long enough
2082	# so it needs to be done right now, right here
2083	cf::sync_job { prepare_random_map $exit };
2084	}
2085
2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2087	my $hp = $exit->stats->hp;
2088	my $sp = $exit->stats->sp;
2089
2090	$self->enter_link;	2753	$self->enter_link;
2091		2754
2092	(async {	2755	(async {
2093	$self->deactivate_recursive; # just to be sure	2756	$Coro::current->{desc} = "enter_exit";
		2757
2094	unless (eval {	2758	unless (eval {
		2759	$self->deactivate_recursive; # just to be sure
		2760
		2761	# random map handling
		2762	{
		2763	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2764
		2765	prepare_random_map $exit
		2766	if $exit->slaying eq "/!";
		2767	}
		2768
		2769	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2770	my $x = $exit->stats->hp;
		2771	my $y = $exit->stats->sp;
		2772
2095	$self->goto ($slaying, $hp, $sp);	2773	$self->goto ($map, $x, $y);
2096		2774
		2775	# if exit is damned, update players death & WoR home-position
		2776	$self->contr->savebed ($map, $x, $y)
		2777	if $exit->flag (cf::FLAG_DAMNED);
		2778
2097	1;	2779	1
2098	}) {	2780	}) {
2099	$self->message ("Something went wrong deep within the crossfire server. "	2781	$self->message ("Something went wrong deep within the deliantra server. "
2100	. "I'll try to bring you back to the map you were before. "	2782	. "I'll try to bring you back to the map you were before. "
2101	. "Please report this to the dungeon master!",	2783	. "Please report this to the dungeon master!",
2102	cf::NDI_UNIQUE | cf::NDI_RED);	2784	cf::NDI_UNIQUE | cf::NDI_RED);
2103		2785
2104	warn "ERROR in enter_exit: $@";	2786	warn "ERROR in enter_exit: $@";
…		…
2123		2805
2124	utf8::encode $text;	2806	utf8::encode $text;
2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2807	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2126	}	2808	}
2127		2809
		2810	=item $client->send_big_packet ($pkt)
		2811
		2812	Like C<send_packet>, but tries to compress large packets, and fragments
		2813	them as required.
		2814
		2815	=cut
		2816
		2817	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2818
		2819	sub cf::client::send_big_packet {
		2820	my ($self, $pkt) = @_;
		2821
		2822	# try lzf for large packets
		2823	$pkt = "lzf " . Compress::LZF::compress $pkt
		2824	if 1024 <= length $pkt and $self->{can_lzf};
		2825
		2826	# split very large packets
		2827	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2828	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2829	$pkt = "frag";
		2830	}
		2831
		2832	$self->send_packet ($pkt);
		2833	}
		2834
		2835	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2836
		2837	Send a drawinfo or msg packet to the client, formatting the msg for the
		2838	client if neccessary. C<$type> should be a string identifying the type of
		2839	the message, with C<log> being the default. If C<$color> is negative, suppress
		2840	the message unless the client supports the msg packet.
		2841
		2842	=cut
		2843
		2844	# non-persistent channels (usually the info channel)
		2845	our %CHANNEL = (
		2846	"c/motd" => {
		2847	id => "infobox",
		2848	title => "MOTD",
		2849	reply => undef,
		2850	tooltip => "The message of the day",
		2851	},
		2852	"c/identify" => {
		2853	id => "infobox",
		2854	title => "Identify",
		2855	reply => undef,
		2856	tooltip => "Items recently identified",
		2857	},
		2858	"c/examine" => {
		2859	id => "infobox",
		2860	title => "Examine",
		2861	reply => undef,
		2862	tooltip => "Signs and other items you examined",
		2863	},
		2864	"c/shopinfo" => {
		2865	id => "infobox",
		2866	title => "Shop Info",
		2867	reply => undef,
		2868	tooltip => "What your bargaining skill tells you about the shop",
		2869	},
		2870	"c/book" => {
		2871	id => "infobox",
		2872	title => "Book",
		2873	reply => undef,
		2874	tooltip => "The contents of a note or book",
		2875	},
		2876	"c/lookat" => {
		2877	id => "infobox",
		2878	title => "Look",
		2879	reply => undef,
		2880	tooltip => "What you saw there",
		2881	},
		2882	"c/who" => {
		2883	id => "infobox",
		2884	title => "Players",
		2885	reply => undef,
		2886	tooltip => "Shows players who are currently online",
		2887	},
		2888	"c/body" => {
		2889	id => "infobox",
		2890	title => "Body Parts",
		2891	reply => undef,
		2892	tooltip => "Shows which body parts you posess and are available",
		2893	},
		2894	"c/statistics" => {
		2895	id => "infobox",
		2896	title => "Statistics",
		2897	reply => undef,
		2898	tooltip => "Shows your primary statistics",
		2899	},
		2900	"c/skills" => {
		2901	id => "infobox",
		2902	title => "Skills",
		2903	reply => undef,
		2904	tooltip => "Shows your experience per skill and item power",
		2905	},
		2906	"c/shopitems" => {
		2907	id => "infobox",
		2908	title => "Shop Items",
		2909	reply => undef,
		2910	tooltip => "Shows the items currently for sale in this shop",
		2911	},
		2912	"c/resistances" => {
		2913	id => "infobox",
		2914	title => "Resistances",
		2915	reply => undef,
		2916	tooltip => "Shows your resistances",
		2917	},
		2918	"c/pets" => {
		2919	id => "infobox",
		2920	title => "Pets",
		2921	reply => undef,
		2922	tooltip => "Shows information abotu your pets/a specific pet",
		2923	},
		2924	"c/perceiveself" => {
		2925	id => "infobox",
		2926	title => "Perceive Self",
		2927	reply => undef,
		2928	tooltip => "You gained detailed knowledge about yourself",
		2929	},
		2930	"c/uptime" => {
		2931	id => "infobox",
		2932	title => "Uptime",
		2933	reply => undef,
		2934	tooltip => "How long the server has been running since last restart",
		2935	},
		2936	"c/mapinfo" => {
		2937	id => "infobox",
		2938	title => "Map Info",
		2939	reply => undef,
		2940	tooltip => "Information related to the maps",
		2941	},
		2942	"c/party" => {
		2943	id => "party",
		2944	title => "Party",
		2945	reply => "gsay ",
		2946	tooltip => "Messages and chat related to your party",
		2947	},
		2948	"c/death" => {
		2949	id => "death",
		2950	title => "Death",
		2951	reply => undef,
		2952	tooltip => "Reason for and more info about your most recent death",
		2953	},
		2954	"c/say" => $SAY_CHANNEL,
		2955	"c/chat" => $CHAT_CHANNEL,
		2956	);
		2957
		2958	sub cf::client::send_msg {
		2959	my ($self, $channel, $msg, $color, @extra) = @_;
		2960
		2961	$msg = $self->pl->expand_cfpod ($msg)
		2962	unless $color & cf::NDI_VERBATIM;
		2963
		2964	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2965
		2966	# check predefined channels, for the benefit of C
		2967	if ($CHANNEL{$channel}) {
		2968	$channel = $CHANNEL{$channel};
		2969
		2970	$self->ext_msg (channel_info => $channel);
		2971	$channel = $channel->{id};
		2972
		2973	} elsif (ref $channel) {
		2974	# send meta info to client, if not yet sent
		2975	unless (exists $self->{channel}{$channel->{id}}) {
		2976	$self->{channel}{$channel->{id}} = $channel;
		2977	$self->ext_msg (channel_info => $channel);
		2978	}
		2979
		2980	$channel = $channel->{id};
		2981	}
		2982
		2983	return unless @extra || length $msg;
		2984
		2985	# default colour, mask it out
		2986	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2987	if $color & cf::NDI_DEF;
		2988
		2989	my $pkt = "msg "
		2990	. $self->{json_coder}->encode (
		2991	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2992	);
		2993
		2994	$self->send_big_packet ($pkt);
		2995	}
		2996
2128	=item $client->ext_event ($type, %msg)	2997	=item $client->ext_msg ($type, @msg)
2129		2998
2130	Sends an exti event to the client.	2999	Sends an ext event to the client.
2131		3000
2132	=cut	3001	=cut
2133		3002
2134	sub cf::client::ext_event($$%) {	3003	sub cf::client::ext_msg($$@) {
2135	my ($self, $type, %msg) = @_;	3004	my ($self, $type, @msg) = @_;
2136		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
2137	$msg{msgtype} = "event_$type";	3009	push @msg, msgtype => "event_$type";
2138	$self->send_packet ("ext " . cf::to_json \%msg);	3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
		3013
		3014	=item $client->ext_reply ($msgid, @msg)
		3015
		3016	Sends an ext reply to the client.
		3017
		3018	=cut
		3019
		3020	sub cf::client::ext_reply($$@) {
		3021	my ($self, $id, @msg) = @_;
		3022
		3023	if ($self->extcmd == 2) {
		3024	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3025	} elsif ($self->extcmd == 1) {
		3026	#TODO: version 1, remove
		3027	unshift @msg, msgtype => "reply", msgid => $id;
		3028	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3029	}
2139	}	3030	}
2140		3031
2141	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
2142		3033
2143	Queues a query to the client, calling the given callback with	3034	Queues a query to the client, calling the given callback with
2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3035	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2145	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3036	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2146		3037
2147	Queries can fail, so check the return code. Or don't, as queries will become	3038	Queries can fail, so check the return code. Or don't, as queries will
2148	reliable at some point in the future.	3039	become reliable at some point in the future.
2149		3040
2150	=cut	3041	=cut
2151		3042
2152	sub cf::client::query {	3043	sub cf::client::query {
2153	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
2161	utf8::encode $text;	3052	utf8::encode $text;
2162	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2163		3054
2164	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
2165	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
2166	}	3059	}
2167		3060
2168	cf::client->attach (	3061	cf::client->attach (
		3062	on_connect => sub {
		3063	my ($ns) = @_;
		3064
		3065	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3066	},
2169	on_reply => sub {	3067	on_reply => sub {
2170	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
2171		3069
2172	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
2173	# get handled first	3071	# get handled first
…		…
2185	} else {	3083	} else {
2186	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2187	}	3085	}
2188	}	3086	}
2189	},	3087	},
		3088	on_exticmd => sub {
		3089	my ($ns, $buf) = @_;
		3090
		3091	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3092
		3093	if (ref $msg) {
		3094	my ($type, $reply, @payload) =
		3095	"ARRAY" eq ref $msg
		3096	? @$msg
		3097	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3098
		3099	my @reply;
		3100
		3101	if (my $cb = $EXTICMD{$type}) {
		3102	@reply = $cb->($ns, @payload);
		3103	}
		3104
		3105	$ns->ext_reply ($reply, @reply)
		3106	if $reply;
		3107
		3108	} else {
		3109	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3110	}
		3111
		3112	cf::override;
		3113	},
2190	);	3114	);
2191		3115
2192	=item $client->async (\&cb)	3116	=item $client->async (\&cb)
2193		3117
2194	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
…		…
2235	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
2236	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
2237		3161
2238	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
2239		3163
2240	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3164	$safe->permit_only (Opcode::opset qw(
		3165	:base_core :base_mem :base_orig :base_math :base_loop
		3166	grepstart grepwhile mapstart mapwhile
		3167	sort time
		3168	));
2241		3169
2242	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
2243		3171
2244	=pod	3172	=pod
2245		3173
2246	The following functions and methods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
2247		3175
2248	cf::object contr pay_amount pay_player map	3176	cf::object
		3177	contr pay_amount pay_player map x y force_find force_add destroy
		3178	insert remove name archname title slaying race decrease split
		3179	value
		3180
2249	cf::object::player player	3181	cf::object::player
2250	cf::player peaceful	3182	player
2251	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
2252		3189
2253	=cut	3190	=cut
2254		3191
2255	for (	3192	for (
2256	["cf::object" => qw(contr pay_amount pay_player map)],	3193	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3194	insert remove inv nrof name archname title slaying race
		3195	decrease split destroy change_exp value msg lore send_msg)],
2257	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
2258	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
2259	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
2260	) {	3199	) {
2261	no strict 'refs';	3200	no strict 'refs';
2262	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
2263	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2281		3220
2282	my $qcode = $code;	3221	my $qcode = $code;
2283	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2284	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
2285		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
2286	local $_;	3228	local $_;
2287	local @safe::cf::_safe_eval_args = values %vars;
2288		3229
2289	my $eval =	3230	my $eval =
2290	"do {\n"	3231	"do {\n"
2291	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2292	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
2293	. $code	3234	. $code
2294	. "\n}"	3235	. "\n}"
2295	;	3236	;
2296		3237
		3238	if ($CFG{safe_eval}) {
2297	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
2298	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2299	sub_generation_inc;	3242	sub_generation_inc;
		3243	} else {
		3244	local @cf::_safe_eval_args = values %vars;
		3245	@res = wantarray ? eval eval : scalar eval $eval;
		3246	}
2300		3247
2301	if ($@) {	3248	if ($@) {
2302	warn "$@";	3249	warn "$@";
2303	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
2304	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2323	=cut	3270	=cut
2324		3271
2325	sub register_script_function {	3272	sub register_script_function {
2326	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
2327		3274
2328	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
2329	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
2330	}	3277	}
2331		3278
2332	=back	3279	=back
2333		3280
2334	=cut	3281	=cut
2335
2336	#############################################################################
2337
2338	=head2 EXTENSION DATABASE SUPPORT
2339
2340	Crossfire maintains a very simple database for extension use. It can
2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2342	convert to/from binary).
2343
2344	The parameter C<$family> should best start with the name of the extension
2345	using it, it should be unique.
2346
2347	=over 4
2348
2349	=item $value = cf::db_get $family => $key
2350
2351	Returns a single value from the database.
2352
2353	=item cf::db_put $family => $key => $value
2354
2355	Stores the given C<$value> in the family.
2356
2357	=cut
2358
2359	our $DB;
2360
2361	sub db_init {
2362	unless ($DB) {
2363	$DB = BDB::db_create $DB_ENV;
2364
2365	cf::sync_job {
2366	eval {
2367	$DB->set_flags (BDB::CHKSUM);
2368
2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2371	cf::cleanup "db_open(db): $!" if $!;
2372	};
2373	cf::cleanup "db_open(db): $@" if $@;
2374	};
2375	}
2376	}
2377
2378	sub db_get($$) {
2379	my $key = "$_[0]/$_[1]";
2380
2381	cf::sync_job {
2382	BDB::db_get $DB, undef, $key, my $data;
2383
2384	$! ? ()
2385	: $data
2386	}
2387	}
2388
2389	sub db_put($$$) {
2390	BDB::dbreq_pri 4;
2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2392	}
2393
2394	=item cf::cache $id => [$paths...], $processversion => $process
2395
2396	Generic caching function that returns the value of the resource $id,
2397	caching and regenerating as required.
2398
2399	This function can block.
2400
2401	=cut
2402
2403	sub cache {
2404	my ($id, $src, $processversion, $process) = @_;
2405
2406	my $meta =
2407	join "\x00",
2408	$processversion,
2409	map {
2410	aio_stat $_
2411	and Carp::croak "$_: $!";
2412
2413	($_, (stat _)[7,9])
2414	} @$src;
2415
2416	my $dbmeta = db_get cache => "$id/meta";
2417	if ($dbmeta ne $meta) {
2418	# changed, we may need to process
2419
2420	my @data;
2421	my $md5;
2422
2423	for (0 .. $#$src) {
2424	0 <= aio_load $src->[$_], $data[$_]
2425	or Carp::croak "$src->[$_]: $!";
2426	}
2427
2428	# if processing is expensive, check
2429	# checksum first
2430	if (1) {
2431	$md5 =
2432	join "\x00",
2433	$processversion,
2434	map {
2435	Coro::cede;
2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
2437	} 0.. $#$src;
2438
2439
2440	my $dbmd5 = db_get cache => "$id/md5";
2441	if ($dbmd5 eq $md5) {
2442	db_put cache => "$id/meta", $meta;
2443
2444	return db_get cache => "$id/data";
2445	}
2446	}
2447
2448	my $t1 = Time::HiRes::time;
2449	my $data = $process->(\@data);
2450	my $t2 = Time::HiRes::time;
2451
2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2453
2454	db_put cache => "$id/data", $data;
2455	db_put cache => "$id/md5" , $md5;
2456	db_put cache => "$id/meta", $meta;
2457
2458	return $data;
2459	}
2460
2461	db_get cache => "$id/data"
2462	}
2463
2464	=item fork_call { }, $args
2465
2466	Executes the given code block with the given arguments in a seperate
2467	process, returning the results. Everything must be serialisable with
2468	Coro::Storable. May, of course, block. Note that the executed sub may
2469	never block itself or use any form of Event handling.
2470
2471	=cut
2472
2473	sub fork_call(&@) {
2474	my ($cb, @args) = @_;
2475
2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2477	# or die "socketpair: $!";
2478	pipe my $fh1, my $fh2
2479	or die "pipe: $!";
2480
2481	if (my $pid = fork) {
2482	close $fh2;
2483
2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2485	$res = Coro::Storable::thaw $res;
2486
2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2488
2489	die $$res unless "ARRAY" eq ref $res;
2490
2491	return wantarray ? @$res : $res->[-1];
2492	} else {
2493	reset_signals;
2494	local $SIG{__WARN__};
2495	local $SIG{__DIE__};
2496	eval {
2497	close $fh1;
2498
2499	my @res = eval { $cb->(@args) };
2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2501	};
2502
2503	warn $@ if $@;
2504	_exit 0;
2505	}
2506	}
2507
2508
2509		3282
2510	#############################################################################	3283	#############################################################################
2511	# the server's init and main functions	3284	# the server's init and main functions
2512		3285
2513	sub load_facedata($) {	3286	sub load_facedata($) {
2514	my ($path) = @_;	3287	my ($path) = @_;
		3288
		3289	# HACK to clear player env face cache, we need some signal framework
		3290	# for this (global event?)
		3291	%ext::player_env::MUSIC_FACE_CACHE = ();
		3292
		3293	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2515		3294
2516	warn "loading facedata from $path\n";	3295	warn "loading facedata from $path\n";
2517		3296
2518	my $facedata;	3297	my $facedata;
2519	0 < aio_load $path, $facedata	3298	0 < aio_load $path, $facedata
…		…
2522	$facedata = Coro::Storable::thaw $facedata;	3301	$facedata = Coro::Storable::thaw $facedata;
2523		3302
2524	$facedata->{version} == 2	3303	$facedata->{version} == 2
2525	or cf::cleanup "$path: version mismatch, cannot proceed.";	3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
2526		3305
		3306	# patch in the exptable
		3307	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3308	$facedata->{resource}{"res/exp_table"} = {
		3309	type => FT_RSRC,
		3310	data => $exp_table,
		3311	hash => (Digest::MD5::md5 $exp_table),
		3312	};
		3313	cf::cede_to_tick;
		3314
2527	{	3315	{
2528	my $faces = $facedata->{faceinfo};	3316	my $faces = $facedata->{faceinfo};
2529		3317
2530	while (my ($face, $info) = each %$faces) {	3318	while (my ($face, $info) = each %$faces) {
2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3320
2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3321	cf::face::set_visibility $idx, $info->{visibility};
		3322	cf::face::set_magicmap $idx, $info->{magicmap};
2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2535	Coro::cede;	3325
		3326	cf::cede_to_tick;
2536	}	3327	}
2537		3328
2538	while (my ($face, $info) = each %$faces) {	3329	while (my ($face, $info) = each %$faces) {
2539	next unless $info->{smooth};	3330	next unless $info->{smooth};
		3331
2540	my $idx = cf::face::find $face	3332	my $idx = cf::face::find $face
2541	or next;	3333	or next;
		3334
2542	if (my $smooth = cf::face::find $info->{smooth}) {	3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2544	} else {	3338	} else {
2545	warn "smooth face '$info->{smooth}' not found for face '$face'";	3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
2546	}	3340	}
2547	Coro::cede;	3341
		3342	cf::cede_to_tick;
2548	}	3343	}
2549	}	3344	}
2550		3345
2551	{	3346	{
2552	my $anims = $facedata->{animinfo};	3347	my $anims = $facedata->{animinfo};
2553		3348
2554	while (my ($anim, $info) = each %$anims) {	3349	while (my ($anim, $info) = each %$anims) {
2555	cf::anim::set $anim, $info->{frames}, $info->{facings};	3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
2556	Coro::cede;	3351	cf::cede_to_tick;
2557	}	3352	}
2558		3353
2559	cf::anim::invalidate_all; # d'oh	3354	cf::anim::invalidate_all; # d'oh
2560	}	3355	}
2561		3356
		3357	{
		3358	my $res = $facedata->{resource};
		3359
		3360	while (my ($name, $info) = each %$res) {
		3361	if (defined $info->{type}) {
		3362	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3363
		3364	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3365	cf::face::set_type $idx, $info->{type};
		3366	} else {
		3367	$RESOURCE{$name} = $info;
		3368	}
		3369
		3370	cf::cede_to_tick;
		3371	}
		3372	}
		3373
		3374	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3375
2562	1	3376	1
2563	}	3377	}
2564		3378
		3379	cf::global->attach (on_resource_update => sub {
		3380	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3381	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3382
		3383	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3384	my $sound = $soundconf->{compat}[$_]
		3385	or next;
		3386
		3387	my $face = cf::face::find "sound/$sound->[1]";
		3388	cf::sound::set $sound->[0] => $face;
		3389	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3390	}
		3391
		3392	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3393	my $face = cf::face::find "sound/$v";
		3394	cf::sound::set $k => $face;
		3395	}
		3396	}
		3397	});
		3398
		3399	register_exticmd fx_want => sub {
		3400	my ($ns, $want) = @_;
		3401
		3402	while (my ($k, $v) = each %$want) {
		3403	$ns->fx_want ($k, $v);
		3404	}
		3405	};
		3406
		3407	sub load_resource_file($) {
		3408	my $guard = lock_acquire "load_resource_file";
		3409
		3410	my $status = load_resource_file_ $_[0];
		3411	get_slot 0.1, 100;
		3412	cf::arch::commit_load;
		3413
		3414	$status
		3415	}
		3416
2565	sub reload_regions {	3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
2566	load_resource_file "$MAPDIR/regions"	3422	load_resource_file "$MAPDIR/regions"
2567	or die "unable to load regions file\n";	3423	or die "unable to load regions file\n";
		3424
		3425	for (cf::region::list) {
		3426	$_->{match} = qr/$_->{match}/
		3427	if exists $_->{match};
		3428	}
2568	}	3429	}
2569		3430
2570	sub reload_facedata {	3431	sub reload_facedata {
2571	load_facedata "$DATADIR/facedata"	3432	load_facedata "$DATADIR/facedata"
2572	or die "unable to load facedata\n";	3433	or die "unable to load facedata\n";
…		…
2583	}	3444	}
2584		3445
2585	sub reload_resources {	3446	sub reload_resources {
2586	warn "reloading resource files...\n";	3447	warn "reloading resource files...\n";
2587		3448
2588	reload_regions;
2589	reload_facedata;	3449	reload_facedata;
2590	reload_archetypes;	3450	reload_archetypes;
		3451	reload_regions;
2591	reload_treasures;	3452	reload_treasures;
2592		3453
2593	warn "finished reloading resource files\n";	3454	warn "finished reloading resource files\n";
2594	}	3455	}
2595		3456
2596	sub init {	3457	sub reload_config {
2597	reload_resources;	3458	warn "reloading config file...\n";
2598	}
2599		3459
2600	sub cfg_load {
2601	open my $fh, "<:utf8", "$CONFDIR/config"	3460	open my $fh, "<:utf8", "$CONFDIR/config"
2602	or return;	3461	or return;
2603		3462
2604	local $/;	3463	local $/;
2605	*CFG = YAML::Syck::Load <$fh>;	3464	*CFG = YAML::XS::Load scalar <$fh>;
2606		3465
2607	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2608		3467
2609	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3468	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2610	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3469	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2614	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2615	and die "WARNING: m(un)lockall failed: $!\n";	3474	and die "WARNING: m(un)lockall failed: $!\n";
2616	};	3475	};
2617	warn $@ if $@;	3476	warn $@ if $@;
2618	}	3477	}
		3478
		3479	warn "finished reloading resource files\n";
		3480	}
		3481
		3482	sub pidfile() {
		3483	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3484	or die "$PIDFILE: $!";
		3485	flock $fh, &Fcntl::LOCK_EX
		3486	or die "$PIDFILE: flock: $!";
		3487	$fh
		3488	}
		3489
		3490	# make sure only one server instance is running at any one time
		3491	sub atomic {
		3492	my $fh = pidfile;
		3493
		3494	my $pid = <$fh>;
		3495	kill 9, $pid if $pid > 0;
		3496
		3497	seek $fh, 0, 0;
		3498	print $fh $$;
		3499	}
		3500
		3501	sub main_loop {
		3502	warn "EV::loop starting\n";
		3503	if (1) {
		3504	EV::loop;
		3505	}
		3506	warn "EV::loop returned\n";
		3507	goto &main_loop unless $REALLY_UNLOOP;
2619	}	3508	}
2620		3509
2621	sub main {	3510	sub main {
		3511	cf::init_globals; # initialise logging
		3512
		3513	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3514	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3515	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3516	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3517
		3518	cf::init_experience;
		3519	cf::init_anim;
		3520	cf::init_attackmess;
		3521	cf::init_dynamic;
		3522
		3523	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3524
2622	# we must not ever block the main coroutine	3525	# we must not ever block the main coroutine
2623	local $Coro::idle = sub {	3526	local $Coro::idle = sub {
2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3527	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2625	(async {	3528	(async {
2626	Event::one_event;	3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
2627	})->prio (Coro::PRIO_MAX);	3531	})->prio (Coro::PRIO_MAX);
2628	};	3532	};
2629		3533
2630	cfg_load;	3534	evthread_start IO::AIO::poll_fileno;
		3535
		3536	cf::sync_job {
		3537	cf::load_settings;
		3538	cf::load_materials;
		3539
		3540	reload_resources;
		3541	reload_config;
2631	db_init;	3542	db_init;
		3543
		3544	cf::init_uuid;
		3545	cf::init_signals;
		3546	cf::init_commands;
		3547	cf::init_skills;
		3548
		3549	cf::init_beforeplay;
		3550
		3551	atomic;
		3552
2632	load_extensions;	3553	load_extensions;
2633		3554
2634	$TICK_WATCHER->start;	3555	utime time, time, $RUNTIMEFILE;
2635	Event::loop;	3556
		3557	# no (long-running) fork's whatsoever before this point(!)
		3558	use POSIX ();
		3559	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3560
		3561	(pop @POST_INIT)->(0) while @POST_INIT;
		3562	};
		3563
		3564	main_loop;
2636	}	3565	}
2637		3566
2638	#############################################################################	3567	#############################################################################
2639	# initialisation and cleanup	3568	# initialisation and cleanup
2640		3569
2641	# install some emergency cleanup handlers	3570	# install some emergency cleanup handlers
2642	BEGIN {	3571	BEGIN {
		3572	our %SIGWATCHER = ();
2643	for my $signal (qw(INT HUP TERM)) {	3573	for my $signal (qw(INT HUP TERM)) {
2644	Event->signal (	3574	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2645	reentrant => 0,
2646	data => WF_AUTOCANCEL,
2647	signal => $signal,
2648	prio => 0,
2649	cb => sub {
2650	cf::cleanup "SIG$signal";	3575	cf::cleanup "SIG$signal";
2651	},
2652	);	3576	};
		3577	}
		3578	}
		3579
		3580	sub write_runtime_sync {
		3581	my $t0 = EV::time;
		3582
		3583	# first touch the runtime file to show we are still running:
		3584	# the fsync below can take a very very long time.
		3585
		3586	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3587
		3588	my $guard = cf::lock_acquire "write_runtime";
		3589
		3590	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3591	or return;
		3592
		3593	my $value = $cf::RUNTIME + 90 + 10;
		3594	# 10 is the runtime save interval, for a monotonic clock
		3595	# 60 allows for the watchdog to kill the server.
		3596
		3597	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3598	and return;
		3599
		3600	# always fsync - this file is important
		3601	aio_fsync $fh
		3602	and return;
		3603
		3604	# touch it again to show we are up-to-date
		3605	aio_utime $fh, undef, undef;
		3606
		3607	close $fh
		3608	or return;
		3609
		3610	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3611	and return;
		3612
		3613	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3614
2653	}	3615	1
		3616	}
		3617
		3618	our $uuid_lock;
		3619	our $uuid_skip;
		3620
		3621	sub write_uuid_sync($) {
		3622	$uuid_skip ||= $_[0];
		3623
		3624	return if $uuid_lock;
		3625	local $uuid_lock = 1;
		3626
		3627	my $uuid = "$LOCALDIR/uuid";
		3628
		3629	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3630	or return;
		3631
		3632	my $value = uuid_seq uuid_cur;
		3633
		3634	unless ($value) {
		3635	warn "cowardly refusing to write zero uuid value!\n";
		3636	return;
		3637	}
		3638
		3639	my $value = uuid_str $value + $uuid_skip;
		3640	$uuid_skip = 0;
		3641
		3642	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3643	and return;
		3644
		3645	# always fsync - this file is important
		3646	aio_fsync $fh
		3647	and return;
		3648
		3649	close $fh
		3650	or return;
		3651
		3652	aio_rename "$uuid~", $uuid
		3653	and return;
		3654
		3655	warn "uuid file written ($value).\n";
		3656
		3657	1
		3658
		3659	}
		3660
		3661	sub write_uuid($$) {
		3662	my ($skip, $sync) = @_;
		3663
		3664	$sync ? write_uuid_sync $skip
		3665	: async { write_uuid_sync $skip };
2654	}	3666	}
2655		3667
2656	sub emergency_save() {	3668	sub emergency_save() {
2657	my $freeze_guard = cf::freeze_mainloop;	3669	my $freeze_guard = cf::freeze_mainloop;
2658		3670
2659	warn "enter emergency perl save\n";	3671	warn "emergency_perl_save: enter\n";
2660		3672
2661	cf::sync_job {	3673	cf::sync_job {
		3674	# this is a trade-off: we want to be very quick here, so
		3675	# save all maps without fsync, and later call a global sync
		3676	# (which in turn might be very very slow)
		3677	local $USE_FSYNC = 0;
		3678
2662	# use a peculiar iteration method to avoid tripping on perl	3679	# use a peculiar iteration method to avoid tripping on perl
2663	# refcount bugs in for. also avoids problems with players	3680	# refcount bugs in for. also avoids problems with players
2664	# and maps saved/destroyed asynchronously.	3681	# and maps saved/destroyed asynchronously.
2665	warn "begin emergency player save\n";	3682	warn "emergency_perl_save: begin player save\n";
2666	for my $login (keys %cf::PLAYER) {	3683	for my $login (keys %cf::PLAYER) {
2667	my $pl = $cf::PLAYER{$login} or next;	3684	my $pl = $cf::PLAYER{$login} or next;
2668	$pl->valid or next;	3685	$pl->valid or next;
		3686	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2669	$pl->save;	3687	$pl->save;
2670	}	3688	}
2671	warn "end emergency player save\n";	3689	warn "emergency_perl_save: end player save\n";
2672		3690
2673	warn "begin emergency map save\n";	3691	warn "emergency_perl_save: begin map save\n";
2674	for my $path (keys %cf::MAP) {	3692	for my $path (keys %cf::MAP) {
2675	my $map = $cf::MAP{$path} or next;	3693	my $map = $cf::MAP{$path} or next;
2676	$map->valid or next;	3694	$map->valid or next;
2677	$map->save;	3695	$map->save;
2678	}	3696	}
2679	warn "end emergency map save\n";	3697	warn "emergency_perl_save: end map save\n";
2680		3698
2681	warn "begin emergency database checkpoint\n";	3699	warn "emergency_perl_save: begin database checkpoint\n";
2682	BDB::db_env_txn_checkpoint $DB_ENV;	3700	BDB::db_env_txn_checkpoint $DB_ENV;
2683	warn "end emergency database checkpoint\n";	3701	warn "emergency_perl_save: end database checkpoint\n";
		3702
		3703	warn "emergency_perl_save: begin write uuid\n";
		3704	write_uuid_sync 1;
		3705	warn "emergency_perl_save: end write uuid\n";
2684	};	3706	};
2685		3707
		3708	warn "emergency_perl_save: starting sync()\n";
		3709	IO::AIO::aio_sync sub {
		3710	warn "emergency_perl_save: finished sync()\n";
		3711	};
		3712
2686	warn "leave emergency perl save\n";	3713	warn "emergency_perl_save: leave\n";
2687	}	3714	}
2688		3715
2689	sub post_cleanup {	3716	sub post_cleanup {
2690	my ($make_core) = @_;	3717	my ($make_core) = @_;
2691		3718
2692	warn Carp::longmess "post_cleanup backtrace"	3719	warn Carp::longmess "post_cleanup backtrace"
2693	if $make_core;	3720	if $make_core;
		3721
		3722	my $fh = pidfile;
		3723	unlink $PIDFILE if <$fh> == $$;
		3724	}
		3725
		3726	# a safer delete_package, copied from Symbol
		3727	sub clear_package($) {
		3728	my $pkg = shift;
		3729
		3730	# expand to full symbol table name if needed
		3731	unless ($pkg =~ /^main::.*::$/) {
		3732	$pkg = "main$pkg" if $pkg =~ /^::/;
		3733	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3734	$pkg .= '::' unless $pkg =~ /::$/;
		3735	}
		3736
		3737	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3738	my $stem_symtab = *{$stem}{HASH};
		3739
		3740	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3741	or return;
		3742
		3743	# clear all symbols
		3744	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3745	for my $name (keys %$leaf_symtab) {
		3746	_gv_clear *{"$pkg$name"};
		3747	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3748	}
		3749	warn "cleared package $pkg\n";#d#
2694	}	3750	}
2695		3751
2696	sub do_reload_perl() {	3752	sub do_reload_perl() {
2697	# can/must only be called in main	3753	# can/must only be called in main
2698	if ($Coro::current != $Coro::main) {	3754	if ($Coro::current != $Coro::main) {
2699	warn "can only reload from main coroutine";	3755	warn "can only reload from main coroutine";
2700	return;	3756	return;
2701	}	3757	}
2702		3758
		3759	return if $RELOAD++;
		3760
		3761	my $t1 = EV::time;
		3762
		3763	while ($RELOAD) {
2703	warn "reloading...";	3764	warn "reloading...";
2704		3765
2705	warn "entering sync_job";	3766	warn "entering sync_job";
2706		3767
2707	cf::sync_job {	3768	cf::sync_job {
2708	cf::write_runtime; # external watchdog should not bark	3769	cf::write_runtime_sync; # external watchdog should not bark
2709	cf::emergency_save;	3770	cf::emergency_save;
2710	cf::write_runtime; # external watchdog should not bark	3771	cf::write_runtime_sync; # external watchdog should not bark
2711		3772
2712	warn "syncing database to disk";	3773	warn "syncing database to disk";
2713	BDB::db_env_txn_checkpoint $DB_ENV;	3774	BDB::db_env_txn_checkpoint $DB_ENV;
2714		3775
2715	# if anything goes wrong in here, we should simply crash as we already saved	3776	# if anything goes wrong in here, we should simply crash as we already saved
2716		3777
2717	warn "cancelling all WF_AUTOCANCEL watchers";
2718	for (Event::all_watchers) {
2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2720	}
2721
2722	warn "flushing outstanding aio requests";	3778	warn "flushing outstanding aio requests";
2723	for (;;) {
2724	BDB::flush;
2725	IO::AIO::flush;
2726	Coro::cede;
2727	last unless IO::AIO::nreqs || BDB::nreqs;	3779	while (IO::AIO::nreqs || BDB::nreqs) {
2728	warn "iterate...";	3780	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2729	}
2730
2731	++$RELOAD;
2732
2733	warn "cancelling all extension coros";
2734	$_->cancel for values %EXT_CORO;
2735	%EXT_CORO = ();
2736
2737	warn "removing commands";
2738	%COMMAND = ();
2739
2740	warn "removing ext commands";
2741	%EXTCMD = ();
2742
2743	warn "unloading/nuking all extensions";
2744	for my $pkg (@EXTS) {
2745	warn "... unloading $pkg";
2746
2747	if (my $cb = $pkg->can ("unload")) {
2748	eval {
2749	$cb->($pkg);
2750	1
2751	} or warn "$pkg unloaded, but with errors: $@";
2752	}	3781	}
2753		3782
2754	warn "... nuking $pkg";	3783	warn "cancelling all extension coros";
2755	Symbol::delete_package $pkg;	3784	$_->cancel for values %EXT_CORO;
2756	}	3785	%EXT_CORO = ();
2757		3786
2758	warn "unloading all perl modules loaded from $LIBDIR";	3787	warn "removing commands";
2759	while (my ($k, $v) = each %INC) {	3788	%COMMAND = ();
2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2761		3789
		3790	warn "removing ext/exti commands";
		3791	%EXTCMD = ();
		3792	%EXTICMD = ();
		3793
		3794	warn "unloading/nuking all extensions";
		3795	for my $pkg (@EXTS) {
2762	warn "... unloading $k";	3796	warn "... unloading $pkg";
2763	delete $INC{$k};
2764		3797
2765	$k =~ s/\.pm$//;
2766	$k =~ s/\//::/g;
2767
2768	if (my $cb = $k->can ("unload_module")) {	3798	if (my $cb = $pkg->can ("unload")) {
		3799	eval {
2769	$cb->();	3800	$cb->($pkg);
		3801	1
		3802	} or warn "$pkg unloaded, but with errors: $@";
		3803	}
		3804
		3805	warn "... clearing $pkg";
		3806	clear_package $pkg;
2770	}	3807	}
2771		3808
2772	Symbol::delete_package $k;	3809	warn "unloading all perl modules loaded from $LIBDIR";
		3810	while (my ($k, $v) = each %INC) {
		3811	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3812
		3813	warn "... unloading $k";
		3814	delete $INC{$k};
		3815
		3816	$k =~ s/\.pm$//;
		3817	$k =~ s/\//::/g;
		3818
		3819	if (my $cb = $k->can ("unload_module")) {
		3820	$cb->();
		3821	}
		3822
		3823	clear_package $k;
2773	}	3824	}
2774		3825
2775	warn "getting rid of safe::, as good as possible";	3826	warn "getting rid of safe::, as good as possible";
2776	Symbol::delete_package "safe::$_"	3827	clear_package "safe::$_"
2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3828	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2778		3829
2779	warn "unloading cf.pm \"a bit\"";	3830	warn "unloading cf.pm \"a bit\"";
2780	delete $INC{"cf.pm"};	3831	delete $INC{"cf.pm"};
2781	delete $INC{"cf/pod.pm"};	3832	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2782		3833
2783	# don't, removes xs symbols, too,	3834	# don't, removes xs symbols, too,
2784	# and global variables created in xs	3835	# and global variables created in xs
2785	#Symbol::delete_package __PACKAGE__;	3836	#clear_package __PACKAGE__;
2786		3837
2787	warn "unload completed, starting to reload now";	3838	warn "unload completed, starting to reload now";
2788		3839
2789	warn "reloading cf.pm";	3840	warn "reloading cf.pm";
2790	require cf;	3841	require cf;
2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3842	cf::_connect_to_perl_1;
2792		3843
2793	warn "loading config and database again";	3844	warn "loading config and database again";
2794	cf::cfg_load;	3845	cf::reload_config;
2795		3846
2796	warn "loading extensions";	3847	warn "loading extensions";
2797	cf::load_extensions;	3848	cf::load_extensions;
2798		3849
		3850	if ($REATTACH_ON_RELOAD) {
2799	warn "reattaching attachments to objects/players";	3851	warn "reattaching attachments to objects/players";
2800	_global_reattach; # objects, sockets	3852	_global_reattach; # objects, sockets
2801	warn "reattaching attachments to maps";	3853	warn "reattaching attachments to maps";
2802	reattach $_ for values %MAP;	3854	reattach $_ for values %MAP;
2803	warn "reattaching attachments to players";	3855	warn "reattaching attachments to players";
2804	reattach $_ for values %PLAYER;	3856	reattach $_ for values %PLAYER;
		3857	}
2805		3858
		3859	warn "running post_init jobs";
		3860	(pop @POST_INIT)->(1) while @POST_INIT;
		3861
2806	warn "leaving sync_job";	3862	warn "leaving sync_job";
2807		3863
2808	1	3864	1
2809	} or do {	3865	} or do {
2810	warn $@;	3866	warn $@;
2811	warn "error while reloading, exiting.";	3867	cf::cleanup "error while reloading, exiting.";
2812	exit 1;
2813	};	3868	};
2814		3869
2815	warn "reloaded";	3870	warn "reloaded";
		3871	--$RELOAD;
		3872	}
		3873
		3874	$t1 = EV::time - $t1;
		3875	warn "reload completed in ${t1}s\n";
2816	};	3876	};
2817		3877
2818	our $RELOAD_WATCHER; # used only during reload	3878	our $RELOAD_WATCHER; # used only during reload
2819		3879
2820	sub reload_perl() {	3880	sub reload_perl() {
2821	# doing reload synchronously and two reloads happen back-to-back,	3881	# doing reload synchronously and two reloads happen back-to-back,
2822	# coro crashes during coro_state_free->destroy here.	3882	# coro crashes during coro_state_free->destroy here.
2823		3883
2824	$RELOAD_WATCHER ||= Event->timer (	3884	$RELOAD_WATCHER ||= cf::async {
2825	reentrant => 0,	3885	Coro::AIO::aio_wait cache_extensions;
2826	after => 0,	3886
2827	data => WF_AUTOCANCEL,	3887	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2828	cb => sub {
2829	do_reload_perl;	3888	do_reload_perl;
2830	undef $RELOAD_WATCHER;	3889	undef $RELOAD_WATCHER;
2831	},	3890	};
2832	);	3891	};
2833	}	3892	}
2834		3893
2835	register_command "reload" => sub {	3894	register_command "reload" => sub {
2836	my ($who, $arg) = @_;	3895	my ($who, $arg) = @_;
2837		3896
2838	if ($who->flag (FLAG_WIZ)) {	3897	if ($who->flag (FLAG_WIZ)) {
2839	$who->message ("reloading server.");	3898	$who->message ("reloading server.");
		3899	async {
		3900	$Coro::current->{desc} = "perl_reload";
2840	async { reload_perl };	3901	reload_perl;
		3902	};
2841	}	3903	}
2842	};	3904	};
2843		3905
2844	unshift @INC, $LIBDIR;	3906	unshift @INC, $LIBDIR;
2845		3907
…		…
2847		3909
2848	our @WAIT_FOR_TICK;	3910	our @WAIT_FOR_TICK;
2849	our @WAIT_FOR_TICK_BEGIN;	3911	our @WAIT_FOR_TICK_BEGIN;
2850		3912
2851	sub wait_for_tick {	3913	sub wait_for_tick {
2852	return unless $TICK_WATCHER->is_active;
2853	return if $Coro::current == $Coro::main;	3914	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2854		3915
2855	my $signal = new Coro::Signal;	3916	my $signal = new Coro::Signal;
2856	push @WAIT_FOR_TICK, $signal;	3917	push @WAIT_FOR_TICK, $signal;
2857	$signal->wait;	3918	$signal->wait;
2858	}	3919	}
2859		3920
2860	sub wait_for_tick_begin {	3921	sub wait_for_tick_begin {
2861	return unless $TICK_WATCHER->is_active;
2862	return if $Coro::current == $Coro::main;	3922	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2863		3923
2864	my $signal = new Coro::Signal;	3924	my $signal = new Coro::Signal;
2865	push @WAIT_FOR_TICK_BEGIN, $signal;	3925	push @WAIT_FOR_TICK_BEGIN, $signal;
2866	$signal->wait;	3926	$signal->wait;
2867	}	3927	}
2868		3928
2869	my $min = 1e6;#d#	3929	sub tick {
2870	my $avg = 10;
2871	$TICK_WATCHER = Event->timer (
2872	reentrant => 0,
2873	parked => 1,
2874	prio => 0,
2875	at => $NEXT_TICK || $TICK,
2876	data => WF_AUTOCANCEL,
2877	cb => sub {
2878	if ($Coro::current != $Coro::main) {	3930	if ($Coro::current != $Coro::main) {
2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3931	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2880	unless ++$bug_warning > 10;	3932	unless ++$bug_warning > 10;
2881	return;	3933	return;
2882	}	3934	}
2883		3935
2884	$NOW = $tick_start = Event::time;
2885
2886	cf::server_tick; # one server iteration	3936	cf::server_tick; # one server iteration
2887		3937
2888	0 && sync_job {#d#	3938	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2889	for(1..10) {
2890	my $t = Event::time;
2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2892	or die;
2893		3939
2894	$map->width (50);	3940	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2895	$map->height (50);	3941	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2896	$map->alloc;	3942	Coro::async_pool {
2897	$map->_load_objects ("/tmp/x.map", 1);	3943	$Coro::current->{desc} = "runtime saver";
2898	my $t = Event::time - $t;	3944	write_runtime_sync
2899		3945	or warn "ERROR: unable to write runtime file: $!";
2900	#next unless $t < 0.0013;#d#
2901	if ($t < $min) {
2902	$min = $t;
2903	}
2904	$avg = $avg * 0.99 + $t * 0.01;
2905	}
2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2907	exit 0;
2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2909	};	3946	};
		3947	}
2910		3948
2911	$RUNTIME += $TICK;
2912	$NEXT_TICK += $TICK;
2913
2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
2916	Coro::async_pool {
2917	write_runtime
2918	or warn "ERROR: unable to write runtime file: $!";
2919	};
2920	}
2921
2922	# my $AFTER = Event::time;
2923	# warn $AFTER - $NOW;#d#
2924
2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3949	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2926	$sig->send;	3950	$sig->send;
2927	}	3951	}
2928	while (my $sig = shift @WAIT_FOR_TICK) {	3952	while (my $sig = shift @WAIT_FOR_TICK) {
2929	$sig->send;	3953	$sig->send;
2930	}	3954	}
2931		3955
2932	$NOW = Event::time;	3956	$LOAD = ($NOW - $TICK_START) / $TICK;
2933
2934	# if we are delayed by four ticks or more, skip them all
2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2936
2937	$TICK_WATCHER->at ($NEXT_TICK);
2938	$TICK_WATCHER->start;
2939
2940	$LOAD = ($NOW - $tick_start) / $TICK;
2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2942		3958
2943	_post_tick;	3959	if (0) {
2944		3960	if ($NEXT_TICK) {
2945		3961	my $jitter = $TICK_START - $NEXT_TICK;
		3962	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3963	warn "jitter $JITTER\n";#d#
		3964	}
2946	},	3965	}
2947	);	3966	}
2948		3967
2949	{	3968	{
2950	BDB::max_poll_time $TICK * 0.1;	3969	# configure BDB
2951	$BDB_POLL_WATCHER = Event->io (	3970
2952	reentrant => 0,
2953	fd => BDB::poll_fileno,
2954	poll => 'r',
2955	prio => 0,
2956	data => WF_AUTOCANCEL,
2957	cb => \&BDB::poll_cb,
2958	);
2959	BDB::min_parallel 8;	3971	BDB::min_parallel 16;
2960		3972	BDB::max_poll_reqs $TICK * 0.1;
2961	BDB::set_sync_prepare {	3973	$AnyEvent::BDB::WATCHER->priority (1);
2962	my $status;
2963	my $current = $Coro::current;
2964	(
2965	sub {
2966	$status = $!;
2967	$current->ready; undef $current;
2968	},
2969	sub {
2970	Coro::schedule while defined $current;
2971	$! = $status;
2972	},
2973	)
2974	};
2975		3974
2976	unless ($DB_ENV) {	3975	unless ($DB_ENV) {
2977	$DB_ENV = BDB::db_env_create;	3976	$DB_ENV = BDB::db_env_create;
		3977	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3978	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3979	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3980	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3981	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2978		3982
2979	cf::sync_job {	3983	cf::sync_job {
2980	eval {	3984	eval {
2981	BDB::db_env_open	3985	BDB::db_env_open
2982	$DB_ENV,	3986	$DB_ENV,
…		…
2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3988	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3989	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2986	0666;	3990	0666;
2987		3991
2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3992	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2989
2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2991	$DB_ENV->set_lk_detect;
2992	};	3993	};
2993		3994
2994	cf::cleanup "db_env_open(db): $@" if $@;	3995	cf::cleanup "db_env_open(db): $@" if $@;
2995	};	3996	};
2996	}	3997	}
		3998
		3999	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4000	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4001	};
		4002	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4003	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4004	};
		4005	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4006	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4007	};
2997	}	4008	}
2998		4009
2999	{	4010	{
		4011	# configure IO::AIO
		4012
3000	IO::AIO::min_parallel 8;	4013	IO::AIO::min_parallel 8;
3001
3002	undef $Coro::AIO::WATCHER;
3003	IO::AIO::max_poll_time $TICK * 0.1;	4014	IO::AIO::max_poll_time $TICK * 0.1;
3004	$AIO_POLL_WATCHER = Event->io (	4015	undef $AnyEvent::AIO::WATCHER;
3005	reentrant => 0,
3006	data => WF_AUTOCANCEL,
3007	fd => IO::AIO::poll_fileno,
3008	poll => 'r',
3009	prio => 6,
3010	cb => \&IO::AIO::poll_cb,
3011	);
3012	}	4016	}
3013		4017
3014	my $_log_backtrace;	4018	my $_log_backtrace;
3015		4019
3016	sub _log_backtrace {	4020	sub _log_backtrace {
…		…
3019	$msg =~ s/\n//;	4023	$msg =~ s/\n//;
3020		4024
3021	# limit the # of concurrent backtraces	4025	# limit the # of concurrent backtraces
3022	if ($_log_backtrace < 2) {	4026	if ($_log_backtrace < 2) {
3023	++$_log_backtrace;	4027	++$_log_backtrace;
		4028	my $perl_bt = Carp::longmess $msg;
3024	async {	4029	async {
		4030	$Coro::current->{desc} = "abt $msg";
		4031
3025	my @bt = fork_call {	4032	my @bt = fork_call {
3026	@addr = map { sprintf "%x", $_ } @addr;	4033	@addr = map { sprintf "%x", $_ } @addr;
3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4034	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4035	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3029	or die "addr2line: $!";	4036	or die "addr2line: $!";
…		…
3037	}	4044	}
3038		4045
3039	@funcs	4046	@funcs
3040	};	4047	};
3041		4048
3042	LOG llevInfo, "[ABT] $msg\n";	4049	LOG llevInfo, "[ABT] $perl_bt\n";
		4050	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3043	LOG llevInfo, "[ABT] $_\n" for @bt;	4051	LOG llevInfo, "[ABT] $_\n" for @bt;
3044	--$_log_backtrace;	4052	--$_log_backtrace;
3045	};	4053	};
3046	} else {	4054	} else {
3047	LOG llevInfo, "[ABT] $msg\n";	4055	LOG llevInfo, "[ABT] $msg\n";
3048	LOG llevInfo, "[ABT] [suppressed]\n";	4056	LOG llevInfo, "[ABT] [suppressed]\n";
3049	}	4057	}
3050	}	4058	}
3051		4059
3052	# load additional modules	4060	# load additional modules
3053	use cf::pod;	4061	require "cf/$_.pm" for @EXTRA_MODULES;
		4062	cf::_connect_to_perl_2;
3054		4063
3055	END { cf::emergency_save }	4064	END { cf::emergency_save }
3056		4065
3057	1	4066	1
3058		4067

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