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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.271 by root, Fri Jun 1 06:04:08 2007 UTC vs.
Revision 1.510 by root, Tue Apr 6 22:59:28 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	IO::AIO::aio_utime $runtime, undef, undef;	574	=cut
401		575
402	my $guard = cf::lock_acquire "write_runtime";	576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
403		578
404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	# we seemingly have to make a local copy of the whole thing,
405	or return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
406		582
407	my $value = $cf::RUNTIME + 90 + 10;	583	my @res = Coro::Util::fork_eval {
408	# 10 is the runtime save interval, for a monotonic clock	584	reset_signals;
409	# 60 allows for the watchdog to kill the server.	585	&$cb
		586	}, @args;
410		587
411	(aio_write $fh, 0, (length $value), $value, 0) <= 0	588	wantarray ? @res : $res[-1]
412	and return;	589	}
413		590
414	# always fsync - this file is important	591	=item $coin = coin_from_name $name
415	aio_fsync $fh
416	and return;
417		592
418	# touch it again to show we are up-to-date	593	=cut
419	aio_utime $fh, undef, undef;
420		594
421	close $fh	595	our %coin_alias = (
422	or return;	596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
423		611
424	aio_rename "$runtime~", $runtime	612	sub coin_from_name($) {
425	and return;	613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
426		617
427	warn "runtime file written.\n";#d#	618	=item $value = cf::db_get $family => $key
428		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 $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
429	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		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"
430	}	743	}
431		744
432	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
433		746
434	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.
…		…
446		759
447	#############################################################################	760	#############################################################################
448		761
449	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
450		763
451	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
452	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")
453	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
454		767
455	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>
456	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
457	crossfire+).	770	Deliantra).
458		771
459	=over 4	772	=over 4
460		773
461	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
462		775
…		…
506	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
507		820
508	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
509	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
510		823
511	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
512	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.
513		826
514	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
515		828
516	=over 4	829	=over 4
…		…
664	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
665	}	978	}
666		979
667	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
668	} else {	981	} else {
669	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
670	}	983	}
671		984
672	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
673	}	986	}
674		987
…		…
714	";	1027	";
715	die if $@;	1028	die if $@;
716	}	1029	}
717		1030
718	our $override;	1031	our $override;
719	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?
720		1033
721	sub override {	1034	sub override {
722	$override = 1;	1035	$override = 1;
723	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
724	}	1037	}
725		1038
726	sub do_invoke {	1039	sub do_invoke {
727	my $event = shift;	1040	my $event = shift;
728	my $callbacks = shift;	1041	my $callbacks = shift;
729		1042
730	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
731		1044
732	local $override;	1045	local $override;
733		1046
734	for (@$callbacks) {	1047	for (@$callbacks) {
735	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
744	}	1057	}
745		1058
746	0	1059	0
747	}	1060	}
748		1061
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1063
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1065
753	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
754		1067
755	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
756	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
757	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1071
759	=back	1072	=back
760		1073
761	=cut	1074	=cut
762		1075
763	#############################################################################	1076	#############################################################################
764	# 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, $ob2
		1119	}
765		1120
766	sub reattach {	1121	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1123	my ($obj) = @_;
769		1124
		1125	# no longer needed after getting rid of delete_package?
770	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
771		1127
772	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
773		1129
774	@$registry = ();	1130	@$registry = ();
775		1131
…		…
790	cf::attachable->attach (	1146	cf::attachable->attach (
791	prio => -1000000,	1147	prio => -1000000,
792	on_instantiate => sub {	1148	on_instantiate => sub {
793	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
794		1150
795	$data = from_json $data;	1151	$data = decode_json $data;
796		1152
797	for (@$data) {	1153	for (@$data) {
798	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
799		1155
800	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1172	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
818		1174
819	sync_job {	1175	sync_job {
820	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
823		1180
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	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	}
828	close $fh;	1188	aio_close $fh;
829		1189
830	if (@$objs) {	1190	if (@$objs) {
831	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) {
832	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
835	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	}
836	close $fh;	1199	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
838	}	1201	}
839	} else {	1202	} else {
840	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
841	}	1204	}
842		1205
843	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1210	} else {
845	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
846	}	1212	}
847	} else {	1213	} else {
848	aio_unlink $filename;	1214	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
850	}	1216	}
851	}	1217	};
852	}	1218	}
853		1219
854	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
856		1222
…		…
868	or return;	1234	or return;
869		1235
870	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
872	or return;	1238	or return;
		1239
873	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
874	}	1242	}
875		1243
		1244	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
878	return ($data, $av);	1248	($data, $av)
879	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
880		1256
881	#############################################################################	1257	#############################################################################
882	# command handling &c	1258	# command handling &c
883		1259
884	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1274	}
899		1275
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1277
902	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.
903		1283
904	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
905	called.	1285	called.
906		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
907	=cut	1298	=cut
908		1299
909	sub register_extcmd {	1300	sub register_extcmd {
910	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
911		1302
912	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
913	}	1304	}
914		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
915	cf::player->attach (	1314	cf::player->attach (
916	on_command => sub {	1315	on_unknown_command => sub {
917	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
918		1317
919	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
920	or return;	1319	or return;
921		1320
…		…
926	cf::override;	1325	cf::override;
927	},	1326	},
928	on_extcmd => sub {	1327	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
930		1329
931	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1331
933	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
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
939	} else {	1347	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1349	}
942		1350
943	cf::override;	1351	cf::override;
944	},	1352	},
945	);	1353	);
946		1354
		1355	# "readahead" all extensions
947	sub load_extension {	1356	sub cache_extensions {
948	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
949		1358
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1362	}
975	die $@;
976	}	1363	};
977		1364
978	push @EXTS, $pkg;	1365	$grp
979	}	1366	}
980		1367
981	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
982	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1373	next unless -r $path;
984	eval {	1374
985	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 $active;
		1434	}
986	1	1435	}
987	} or warn "$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	}
988	}	1446	};
989	}	1447	}
990		1448
991	#############################################################################	1449	#############################################################################
992		1450
		1451	=back
		1452
993	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
994		1454
995	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
996		1456
997	=cut	1457	=cut
998		1458
999	package cf::player;	1459	package cf::player;
1000		1460
1001	use Coro::AIO;	1461	use Coro::AIO;
1002		1462
1003	=head3 cf::player	1463	=head3 cf::player
1004		1464
1005	=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	}
1006		1480
1007	=item cf::player::find $login	1481	=item cf::player::find $login
1008		1482
1009	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
1010		1484
…		…
1029		1503
1030	sub exists($) {	1504	sub exists($) {
1031	my ($login) = @_;	1505	my ($login) = @_;
1032		1506
1033	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
1035	}	1509	}
1036		1510
1037	sub find($) {	1511	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1513	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1524
1051	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1052	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;
1053	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1054	}	1534	}
1055	}	1535	}
1056	}	1536	}
1057		1537
…		…
1066	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1067		1547
1068	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1070		1550
		1551	cf::get_slot 0.01;
		1552
1071	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1072	Coro::cede;	1554	cf::cede_to_tick;
1073	}	1555	}
1074		1556
1075	sub new($) {	1557	sub new($) {
1076	my ($login) = @_;	1558	my ($login) = @_;
1077		1559
…		…
1083	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1084		1566
1085	$self	1567	$self
1086	}	1568	}
1087		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
1088	=item $pl->quit_character	1580	=item $pl->quit_character
1089		1581
1090	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1092		1584
…		…
1096	my ($pl) = @_;	1588	my ($pl) = @_;
1097		1589
1098	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1099		1591
1100	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1101	$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
1102		1594
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1107		1601
1108	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1639	or return [];
1146		1640
1147	my @logins;	1641	my @logins;
1148		1642
1149	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") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1153		1653
1154	utf8::decode $login;	1654	utf8::decode $login;
1155	push @logins, $login;	1655	push @logins, $login;
1156	}	1656	}
1157		1657
…		…
1184	}	1684	}
1185		1685
1186	\@paths	1686	\@paths
1187	}	1687	}
1188		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1189	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1190		1694
1191	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1192		1696
1193	=cut	1697	=cut
1194		1698
1195	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1197		1701
1198	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1703	}
1202		1704
1203	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1204		1706
1205	Sends an ext event to the client.	1707	Sends an ext event to the client.
1206		1708
1207	=cut	1709	=cut
1208		1710
1209	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1211		1713
1212	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1213	}	1715	}
1214		1716
1215	=head3 cf::region	1717	=head3 cf::region
1216		1718
1217	=over 4	1719	=over 4
…		…
1220		1722
1221	package cf::region;	1723	package cf::region;
1222		1724
1223	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1224		1726
1225	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1226		1728
1227	=cut	1729	=cut
1228		1730
1229	sub find_by_path($) {	1731	sub find_by_path($) {
1230	my ($path) = @_;	1732	my ($path) = @_;
1231		1733
1232	my ($match, $specificity);	1734	my ($match, $specificity);
1233		1735
1234	for my $region (list) {	1736	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1238	}	1740	}
1239	}	1741	}
1240		1742
…		…
1261	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1263		1765
1264	sub generate_random_map {	1766	sub generate_random_map {
1265	my ($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
1266	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1772	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1271	$rmp->{exit_on_final_map},	1776	$rmp->{exit_on_final_map},
1272	$rmp->{xsize}, $rmp->{ysize},	1777	$rmp->{xsize}, $rmp->{ysize},
1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1778	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1779	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1304	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1305		1810
1306	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1307	local $self->{path};	1812	local $self->{path};
1308	local $self->{load_path};	1813	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1814
1312	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1313	}	1816	}
1314		1817
1315	sub normalise {	1818	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1363	return $self;	1866	return $self;
1364	}	1867	}
1365	}	1868	}
1366		1869
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1871	()
1369	}	1872	}
1370		1873
1371	sub init {	1874	sub init {
1372	my ($self) = @_;	1875	my ($self) = @_;
…		…
1394		1897
1395	# the temporary/swap location	1898	# the temporary/swap location
1396	sub save_path {	1899	sub save_path {
1397	my ($self) = @_;	1900	my ($self) = @_;
1398		1901
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1903	"$TMPDIR/$path.map"
1401	}	1904	}
1402		1905
1403	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1404	sub uniq_path {	1907	sub uniq_path {
1405	my ($self) = @_;	1908	my ($self) = @_;
1406		1909
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1911	"$UNIQUEDIR/$path"
1409	}	1912	}
1410		1913
1411	# and all this just because we cannot iterate over	1914	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1915	my ($self) = @_;
1415		1916
1416	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1418	}	1920	}
1419		1921
1420	sub unlink_save {	1922	sub unlink_save {
1421	my ($self) = @_;	1923	my ($self) = @_;
1422		1924
…		…
1427		1929
1428	sub load_header_from($) {	1930	sub load_header_from($) {
1429	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1430		1932
1431	utf8::encode $path;	1933	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	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;
1437		1942
1438	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1439		1944
1440	1	1945	1
1441	}	1946	}
…		…
1480	$self->load_header_orig	1985	$self->load_header_orig
1481	or return;	1986	or return;
1482	$self->prepare_orig;	1987	$self->prepare_orig;
1483	}	1988	}
1484		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1485	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1994	unless $self->default_region;
1487		1995
1488	1	1996	1
1489	}	1997	}
…		…
1492	sub find {	2000	sub find {
1493	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1494		2002
1495	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1496		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1498		2007
1499	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1502	or return;	2010	or return;
1503		2011
1504	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1505		2013
1506	$map->load_header	2014	$map->load_header
1507	or return;	2015	or return;
1508		2016
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1512	$map->reset;	2022	$map->reset;
1513	undef $guard;
1514	return find $path;	2023	return find $path;
1515	}	2024	}
1516		2025
1517	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1518	}	2027	}
1519	}	2028	}
1520		2029
1521	sub pre_load { }	2030	sub pre_load { }
1522	sub post_load { }	2031	#sub post_load { } # XS
1523		2032
1524	sub load {	2033	sub load {
1525	my ($self) = @_;	2034	my ($self) = @_;
1526		2035
1527	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1528		2037
1529	my $path = $self->{path};	2038	my $path = $self->{path};
1530		2039
1531	{	2040	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1533		2042
		2043	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2045
1536	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1537		2047
1538	$self->alloc;	2048	$self->alloc;
1539		2049
1540	$self->pre_load;	2050	$self->pre_load;
1541	Coro::cede;	2051	cf::cede_to_tick;
1542		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2055	$self->_load_objects ($f)
1544	or return;	2056	or return;
1545		2057
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1547	if delete $self->{load_original};	2059	if delete $self->{load_original};
1548		2060
1549	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2062	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2065	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1554	}	2069	}
1555	}	2070	}
1556		2071
1557	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1558	# now do the right thing for maps	2075	# now do the right thing for maps
1559	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2078	unless $self->difficulty;
1562	Coro::cede;	2079	cf::cede_to_tick;
1563		2080
1564	unless ($self->{deny_activate}) {	2081	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2082	$self->decay_objects;
1566	$self->fix_auto_apply;	2083	$self->fix_auto_apply;
1567	$self->update_buttons;	2084	$self->update_buttons;
1568	Coro::cede;	2085	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2086	$self->activate;
1572	}	2087	}
1573		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2092	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2093	}
1576		2094
1577	$self->post_load;	2095	$self->post_load;
1578	}	2096	}
1579		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
1580	sub customise_for {	2101	sub customise_for {
1581	my ($self, $ob) = @_;	2102	my ($self, $ob) = @_;
1582		2103
1583	return find "~" . $ob->name . "/" . $self->{path}	2104	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2105	if $self->per_player;
1585		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
1586	$self	2110	$self
1587	}	2111	}
1588		2112
1589	# find and load all maps in the 3x3 area around a map	2113	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2114	sub load_neighbours {
1591	my ($map) = @_;	2115	my ($map) = @_;
1592		2116
1593	my @diag; # diagonal neighbours	2117	my @neigh; # diagonal neighbours
1594		2118
1595	for (0 .. 3) {	2119	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2120	my $neigh = $map->tile_path ($_)
1597	or next;	2121	or next;
1598	$neigh = find $neigh, $map	2122	$neigh = find $neigh, $map
1599	or next;	2123	or next;
1600	$neigh->load;	2124	$neigh->load;
1601		2125
		2126	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2129	}
1605		2130
1606	for (@diag) {	2131	for (grep defined $_->[0], @neigh) {
		2132	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2133	my $neigh = find $path, $origin
1608	or next;	2134	or next;
1609	$neigh->load;	2135	$neigh->load;
1610	}	2136	}
1611	}	2137	}
1612		2138
…		…
1617	}	2143	}
1618		2144
1619	sub do_load_sync {	2145	sub do_load_sync {
1620	my ($map) = @_;	2146	my ($map) = @_;
1621		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
1622	cf::sync_job { $map->load };	2151	cf::sync_job { $map->load };
1623	}	2152	}
1624		2153
1625	our %MAP_PREFETCH;	2154	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2155	our $MAP_PREFETCHER = undef;
1627		2156
1628	sub find_async {	2157	sub find_async {
1629	my ($path, $origin) = @_;	2158	my ($path, $origin, $load) = @_;
1630		2159
1631	$path = normalise $path, $origin && $origin->{path};	2160	$path = normalise $path, $origin && $origin->{path};
1632		2161
1633	if (my $map = $cf::MAP{$path}) {	2162	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2164	}
1636		2165
1637	undef $MAP_PREFETCH{$path};	2166	$MAP_PREFETCH{$path} |= $load;
		2167
1638	$MAP_PREFETCHER ||= cf::async {	2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
1639	while (%MAP_PREFETCH) {	2171	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2172	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2173	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2174	$map->load if $v;
		2175	}
1644		2176
1645	delete $MAP_PREFETCH{$path};	2177	delete $MAP_PREFETCH{$k};
1646	}	2178	}
1647	}	2179	}
1648	undef $MAP_PREFETCHER;	2180	undef $MAP_PREFETCHER;
1649	};	2181	};
1650	$MAP_PREFETCHER->prio (6);	2182	$MAP_PREFETCHER->prio (6);
…		…
1653	}	2185	}
1654		2186
1655	sub save {	2187	sub save {
1656	my ($self) = @_;	2188	my ($self) = @_;
1657		2189
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2191
1660	$self->{last_save} = $cf::RUNTIME;	2192	$self->{last_save} = $cf::RUNTIME;
1661		2193
1662	return unless $self->dirty;	2194	return unless $self->dirty;
1663		2195
…		…
1669	return if $self->{deny_save};	2201	return if $self->{deny_save};
1670		2202
1671	local $self->{last_access} = $self->last_access;#d#	2203	local $self->{last_access} = $self->last_access;#d#
1672		2204
1673	cf::async {	2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2207	$_->contr->save for $self->players;
1675	};	2208	};
		2209
		2210	cf::get_slot 0.02;
1676		2211
1677	if ($uniq) {	2212	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2215	} else {
…		…
1686	my ($self) = @_;	2221	my ($self) = @_;
1687		2222
1688	# save first because save cedes	2223	# save first because save cedes
1689	$self->save;	2224	$self->save;
1690		2225
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2227
1693	return if $self->players;	2228	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;	2229	return if $self->in_memory != cf::MAP_ACTIVE;
1695	return if $self->{deny_save};	2230	return if $self->{deny_save};
1696		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
1697	$self->clear;	2236	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2237	}
1700		2238
1701	sub reset_at {	2239	sub reset_at {
1702	my ($self) = @_;	2240	my ($self) = @_;
1703		2241
1704	# TODO: safety, remove and allow resettable per-player maps	2242	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	2243	return 1e99 if $self->{deny_reset};
1707		2244
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2247
…		…
1721	my ($self) = @_;	2258	my ($self) = @_;
1722		2259
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2261
1725	return if $self->players;	2262	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2263
1728	warn "resetting map ", $self->path;#d#	2264	warn "resetting map ", $self->path, "\n";
1729		2265
1730	$self->in_memory (cf::MAP_SWAPPED);	2266	$self->in_memory (cf::MAP_SWAPPED);
1731		2267
1732	# need to save uniques path	2268	# need to save uniques path
1733	unless ($self->{deny_save}) {	2269	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2273	if $uniq;
1738	}	2274	}
1739		2275
1740	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1741		2277
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2280	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2281
1746	$self->unlink_save;	2282	$self->unlink_save;
1747	$self->destroy;	2283	$self->destroy;
1748	}	2284	}
1749		2285
1750	my $nuke_counter = "aaaa";	2286	my $nuke_counter = "aaaa";
1751		2287
1752	sub nuke {	2288	sub nuke {
1753	my ($self) = @_;	2289	my ($self) = @_;
1754		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
1755	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1756		2295
1757	$self->unlink_save;	2296	$self->unlink_save;
1758		2297
1759	bless $self, "cf::map";	2298	bless $self, "cf::map";
1760	delete $self->{deny_reset};	2299	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2300	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2301	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2303
1765	$cf::MAP{$self->path} = $self;	2304	$cf::MAP{$self->path} = $self;
		2305	}
1766		2306
1767	$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	]
1768	}	2344	}
1769		2345
1770	=item cf::map::unique_maps	2346	=item cf::map::unique_maps
1771		2347
1772	Returns an arrayref of paths of all shared maps that have	2348	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2349	instantiated unique items. May block.
1774		2350
1775	=cut	2351	=cut
1776		2352
1777	sub unique_maps() {	2353	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2354	[
1779	or return;	2355	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2356	utf8::decode $_;
1785	next if /\.pst$/;	2357	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2359	? ()
1788	push @paths, cf::map::normalise $_;	2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2362	]
1790
1791	\@paths
1792	}	2363	}
1793		2364
1794	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	}
1795		2396
1796	=back	2397	=back
1797		2398
1798	=head3 cf::object	2399	=head3 cf::object
1799		2400
…		…
1803		2404
1804	=over 4	2405	=over 4
1805		2406
1806	=item $ob->inv_recursive	2407	=item $ob->inv_recursive
1807		2408
1808	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.
1809		2411
1810	=cut	2412	=cut
1811		2413
1812	sub inv_recursive_;	2414	sub inv_recursive_;
1813	sub inv_recursive_ {	2415	sub inv_recursive_ {
…		…
1816		2418
1817	sub inv_recursive {	2419	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2420	inv_recursive_ inv $_[0]
1819	}	2421	}
1820		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
1821	package cf;	2451	package cf;
1822		2452
1823	=back	2453	=back
1824		2454
1825	=head3 cf::object::player	2455	=head3 cf::object::player
…		…
1831	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>
1832	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
1833	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
1834		2464
1835	=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	};
1836		2480
1837	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2482	# with dialog boxes.
1839	#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
1840	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
1842		2486
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2488
1845	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
1847	} 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 {
1848	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
1850	}	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 (@_);
1851	}	2514	}
1852		2515
1853	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
1854		2517
1855	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
1868		2531
1869	=item $player_object->enter_link	2532	=item $player_object->enter_link
1870		2533
1871	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}>).
1872		2535
1873	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.
1874	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.
1875		2540
1876	Will never block.	2541	Will never block.
1877		2542
1878	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1879		2544
…		…
1931	($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
		2611	# only activate afterwards, to support waiting in hooks
		2612	$self->activate_recursive;
		2613	}
		2614
1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2615	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1949		2616
1950	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
1951	her, loading and preparing them map, calling the provided $check callback	2618	her, loading and preparing them map, calling the provided $check callback
1952	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
1953	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.
		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 >>.
1954		2625
1955	=cut	2626	=cut
1956		2627
1957	our $GOTOGEN;	2628	our $GOTOGEN;
1958		2629
1959	sub cf::object::player::goto {	2630	sub cf::object::player::goto {
1960	my ($self, $path, $x, $y, $check) = @_;	2631	my ($self, $path, $x, $y, $check, $done) = @_;
1961		2632
1962	# do generation counting so two concurrent goto's will be executed in-order	2633	# do generation counting so two concurrent goto's will be executed in-order
1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2634	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1964		2635
1965	$self->enter_link;	2636	$self->enter_link;
1966		2637
1967	(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
1968	my $map = eval {	2660	my $map = eval {
1969	my $map = cf::map::find $path;	2661	my $map = defined $path ? cf::map::find $path : undef;
1970		2662
1971	if ($map) {	2663	if ($map) {
1972	$map = $map->customise_for ($self);	2664	$map = $map->customise_for ($self);
1973	$map = $check->($map) if $check && $map;	2665	$map = $check->($map) if $check && $map;
1974	} else {	2666	} else {
1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2667	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1976	}	2668	}
1977		2669
1978	$map	2670	$map
1979	};	2671	};
1980		2672
…		…
1985		2677
1986	if ($gen == $self->{_goto_generation}) {	2678	if ($gen == $self->{_goto_generation}) {
1987	delete $self->{_goto_generation};	2679	delete $self->{_goto_generation};
1988	$self->leave_link ($map, $x, $y);	2680	$self->leave_link ($map, $x, $y);
1989	}	2681	}
		2682
		2683	$done->() if $done;
1990	})->prio (1);	2684	})->prio (1);
1991	}	2685	}
1992		2686
1993	=item $player_object->enter_exit ($exit_object)	2687	=item $player_object->enter_exit ($exit_object)
1994		2688
…		…
2014	}	2708	}
2015		2709
2016	sub prepare_random_map {	2710	sub prepare_random_map {
2017	my ($exit) = @_;	2711	my ($exit) = @_;
2018		2712
2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
2020
2021	# all this does is basically replace the /! path by	2713	# all this does is basically replace the /! path by
2022	# a new random map path (?random/...) with a seed	2714	# a new random map path (?random/...) with a seed
2023	# that depends on the exit object	2715	# that depends on the exit object
2024		2716
2025	my $rmp = parse_random_map_params $exit->msg;	2717	my $rmp = parse_random_map_params $exit->msg;
…		…
2027	if ($exit->map) {	2719	if ($exit->map) {
2028	$rmp->{region} = $exit->region->name;	2720	$rmp->{region} = $exit->region->name;
2029	$rmp->{origin_map} = $exit->map->path;	2721	$rmp->{origin_map} = $exit->map->path;
2030	$rmp->{origin_x} = $exit->x;	2722	$rmp->{origin_x} = $exit->x;
2031	$rmp->{origin_y} = $exit->y;	2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
2032	}	2726	}
2033		2727
2034	$rmp->{random_seed} ||= $exit->random_seed;	2728	$rmp->{random_seed} ||= $exit->random_seed;
2035		2729
2036	my $data = cf::to_json $rmp;	2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2037	my $md5 = Digest::MD5::md5_hex $data;	2731	my $md5 = Digest::MD5::md5_hex $data;
2038	my $meta = "$RANDOMDIR/$md5.meta";	2732	my $meta = "$RANDOMDIR/$md5.meta";
2039		2733
2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2041	aio_write $fh, 0, (length $data), $data, 0;	2735	aio_write $fh, 0, (length $data), $data, 0;
2042	undef $fh;	2736	undef $fh;
2043	aio_rename "$meta~", $meta;	2737	aio_rename "$meta~", $meta;
2044		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
2045	$exit->slaying ("?random/$md5");	2742	$exit->slaying ("?random/$md5");
2046	$exit->msg (undef);	2743	$exit->msg (undef);
		2744	}
2047	}	2745	}
2048	}	2746	}
2049		2747
2050	sub cf::object::player::enter_exit {	2748	sub cf::object::player::enter_exit {
2051	my ($self, $exit) = @_;	2749	my ($self, $exit) = @_;
2052		2750
2053	return unless $self->type == cf::PLAYER;	2751	return unless $self->type == cf::PLAYER;
2054		2752
2055	if ($exit->slaying eq "/!") {
2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
2057	# the problem is that $exit might not survive long enough
2058	# so it needs to be done right now, right here
2059	cf::sync_job { prepare_random_map $exit };
2060	}
2061
2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2063	my $hp = $exit->stats->hp;
2064	my $sp = $exit->stats->sp;
2065
2066	$self->enter_link;	2753	$self->enter_link;
2067		2754
2068	(async {	2755	(async {
2069	$self->deactivate_recursive; # just to be sure	2756	$Coro::current->{desc} = "enter_exit";
		2757
2070	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
2071	$self->goto ($slaying, $hp, $sp);	2773	$self->goto ($map, $x, $y);
2072		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
2073	1;	2779	1
2074	}) {	2780	}) {
2075	$self->message ("Something went wrong deep within the crossfire server. "	2781	$self->message ("Something went wrong deep within the deliantra server. "
2076	. "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. "
2077	. "Please report this to the dungeon master!",	2783	. "Please report this to the dungeon master!",
2078	cf::NDI_UNIQUE | cf::NDI_RED);	2784	cf::NDI_UNIQUE | cf::NDI_RED);
2079		2785
2080	warn "ERROR in enter_exit: $@";	2786	warn "ERROR in enter_exit: $@";
…		…
2099		2805
2100	utf8::encode $text;	2806	utf8::encode $text;
2101	$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);
2102	}	2808	}
2103		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
2104	=item $client->ext_event ($type, %msg)	2997	=item $client->ext_msg ($type, @msg)
2105		2998
2106	Sends an exti event to the client.	2999	Sends an ext event to the client.
2107		3000
2108	=cut	3001	=cut
2109		3002
2110	sub cf::client::ext_event($$%) {	3003	sub cf::client::ext_msg($$@) {
2111	my ($self, $type, %msg) = @_;	3004	my ($self, $type, @msg) = @_;
2112		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
2113	$msg{msgtype} = "event_$type";	3009	push @msg, msgtype => "event_$type";
2114	$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	}
2115	}	3030	}
2116		3031
2117	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
2118		3033
2119	Queues a query to the client, calling the given callback with	3034	Queues a query to the client, calling the given callback with
2120	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>,
2121	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>.
2122		3037
2123	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
2124	reliable at some point in the future.	3039	become reliable at some point in the future.
2125		3040
2126	=cut	3041	=cut
2127		3042
2128	sub cf::client::query {	3043	sub cf::client::query {
2129	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
2137	utf8::encode $text;	3052	utf8::encode $text;
2138	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2139		3054
2140	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
2141	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
2142	}	3059	}
2143		3060
2144	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	},
2145	on_reply => sub {	3067	on_reply => sub {
2146	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
2147		3069
2148	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
2149	# get handled first	3071	# get handled first
…		…
2161	} else {	3083	} else {
2162	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2163	}	3085	}
2164	}	3086	}
2165	},	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	},
2166	);	3114	);
2167		3115
2168	=item $client->async (\&cb)	3116	=item $client->async (\&cb)
2169		3117
2170	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
…		…
2186		3134
2187	$coro	3135	$coro
2188	}	3136	}
2189		3137
2190	cf::client->attach (	3138	cf::client->attach (
2191	on_destroy => sub {	3139	on_client_destroy => sub {
2192	my ($ns) = @_;	3140	my ($ns) = @_;
2193		3141
2194	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3142	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2195	},	3143	},
2196	);	3144	);
…		…
2211	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
2212	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
2213		3161
2214	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
2215		3163
2216	$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	));
2217		3169
2218	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
2219		3171
2220	=pod	3172	=pod
2221		3173
2222	The following functions and methods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
2223		3175
2224	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
2225	cf::object::player player	3181	cf::object::player
2226	cf::player peaceful	3182	player
2227	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
2228		3189
2229	=cut	3190	=cut
2230		3191
2231	for (	3192	for (
2232	["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)],
2233	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
2234	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
2235	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
2236	) {	3199	) {
2237	no strict 'refs';	3200	no strict 'refs';
2238	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
2239	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2257		3220
2258	my $qcode = $code;	3221	my $qcode = $code;
2259	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2260	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
2261		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
2262	local $_;	3228	local $_;
2263	local @safe::cf::_safe_eval_args = values %vars;
2264		3229
2265	my $eval =	3230	my $eval =
2266	"do {\n"	3231	"do {\n"
2267	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2268	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
2269	. $code	3234	. $code
2270	. "\n}"	3235	. "\n}"
2271	;	3236	;
2272		3237
		3238	if ($CFG{safe_eval}) {
2273	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
2274	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2275	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	}
2276		3247
2277	if ($@) {	3248	if ($@) {
2278	warn "$@";	3249	warn "$@";
2279	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
2280	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2299	=cut	3270	=cut
2300		3271
2301	sub register_script_function {	3272	sub register_script_function {
2302	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
2303		3274
2304	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
2305	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
2306	}	3277	}
2307		3278
2308	=back	3279	=back
2309		3280
2310	=cut	3281	=cut
2311
2312	#############################################################################
2313
2314	=head2 EXTENSION DATABASE SUPPORT
2315
2316	Crossfire maintains a very simple database for extension use. It can
2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2318	convert to/from binary).
2319
2320	The parameter C<$family> should best start with the name of the extension
2321	using it, it should be unique.
2322
2323	=over 4
2324
2325	=item $value = cf::db_get $family => $key
2326
2327	Returns a single value from the database.
2328
2329	=item cf::db_put $family => $key => $value
2330
2331	Stores the given C<$value> in the family.
2332
2333	=cut
2334
2335	our $DB;
2336
2337	sub db_init {
2338	unless ($DB) {
2339	$DB = BDB::db_create $DB_ENV;
2340
2341	cf::sync_job {
2342	eval {
2343	$DB->set_flags (BDB::CHKSUM);
2344
2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2347	cf::cleanup "db_open(db): $!" if $!;
2348	};
2349	cf::cleanup "db_open(db): $@" if $@;
2350	};
2351	}
2352	}
2353
2354	sub db_get($$) {
2355	my $key = "$_[0]/$_[1]";
2356
2357	cf::sync_job {
2358	BDB::db_get $DB, undef, $key, my $data;
2359
2360	$! ? ()
2361	: $data
2362	}
2363	}
2364
2365	sub db_put($$$) {
2366	BDB::dbreq_pri 4;
2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2368	}
2369
2370	=item cf::cache $id => [$paths...], $processversion => $process
2371
2372	Generic caching function that returns the value of the resource $id,
2373	caching and regenerating as required.
2374
2375	This function can block.
2376
2377	=cut
2378
2379	sub cache {
2380	my ($id, $src, $processversion, $process) = @_;
2381
2382	my $meta =
2383	join "\x00",
2384	$processversion,
2385	map {
2386	aio_stat $_
2387	and Carp::croak "$_: $!";
2388
2389	($_, (stat _)[7,9])
2390	} @$src;
2391
2392	my $dbmeta = db_get cache => "$id/meta";
2393	if ($dbmeta ne $meta) {
2394	# changed, we may need to process
2395
2396	my @data;
2397	my $md5;
2398
2399	for (0 .. $#$src) {
2400	0 <= aio_load $src->[$_], $data[$_]
2401	or Carp::croak "$src->[$_]: $!";
2402	}
2403
2404	# if processing is expensive, check
2405	# checksum first
2406	if (1) {
2407	$md5 =
2408	join "\x00",
2409	$processversion,
2410	map {
2411	Coro::cede;
2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
2413	} 0.. $#$src;
2414
2415
2416	my $dbmd5 = db_get cache => "$id/md5";
2417	if ($dbmd5 eq $md5) {
2418	db_put cache => "$id/meta", $meta;
2419
2420	return db_get cache => "$id/data";
2421	}
2422	}
2423
2424	my $t1 = Time::HiRes::time;
2425	my $data = $process->(\@data);
2426	my $t2 = Time::HiRes::time;
2427
2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2429
2430	db_put cache => "$id/data", $data;
2431	db_put cache => "$id/md5" , $md5;
2432	db_put cache => "$id/meta", $meta;
2433
2434	return $data;
2435	}
2436
2437	db_get cache => "$id/data"
2438	}
2439
2440	=item fork_call { }, $args
2441
2442	Executes the given code block with the given arguments in a seperate
2443	process, returning the results. Everything must be serialisable with
2444	Coro::Storable. May, of course, block. Note that the executed sub may
2445	never block itself or use any form of Event handling.
2446
2447	=cut
2448
2449	sub fork_call(&@) {
2450	my ($cb, @args) = @_;
2451
2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2453	# or die "socketpair: $!";
2454	pipe my $fh1, my $fh2
2455	or die "pipe: $!";
2456
2457	if (my $pid = fork) {
2458	close $fh2;
2459
2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2461	$res = Coro::Storable::thaw $res;
2462
2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2464
2465	die $$res unless "ARRAY" eq ref $res;
2466
2467	return wantarray ? @$res : $res->[-1];
2468	} else {
2469	reset_signals;
2470	local $SIG{__WARN__};
2471	local $SIG{__DIE__};
2472	eval {
2473	close $fh1;
2474
2475	my @res = eval { $cb->(@args) };
2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2477	};
2478
2479	warn $@ if $@;
2480	_exit 0;
2481	}
2482	}
2483		3282
2484	#############################################################################	3283	#############################################################################
2485	# the server's init and main functions	3284	# the server's init and main functions
2486		3285
2487	sub load_facedata($) {	3286	sub load_facedata($) {
2488	my ($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;
2489		3294
2490	warn "loading facedata from $path\n";	3295	warn "loading facedata from $path\n";
2491		3296
2492	my $facedata;	3297	my $facedata;
2493	0 < aio_load $path, $facedata	3298	0 < aio_load $path, $facedata
…		…
2496	$facedata = Coro::Storable::thaw $facedata;	3301	$facedata = Coro::Storable::thaw $facedata;
2497		3302
2498	$facedata->{version} == 2	3303	$facedata->{version} == 2
2499	or cf::cleanup "$path: version mismatch, cannot proceed.";	3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
2500		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
2501	{	3315	{
2502	my $faces = $facedata->{faceinfo};	3316	my $faces = $facedata->{faceinfo};
2503		3317
2504	while (my ($face, $info) = each %$faces) {	3318	while (my ($face, $info) = each %$faces) {
2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3320
2506	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3321	cf::face::set_visibility $idx, $info->{visibility};
		3322	cf::face::set_magicmap $idx, $info->{magicmap};
2507	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2508	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2509	Coro::cede;	3325
		3326	cf::cede_to_tick;
2510	}	3327	}
2511		3328
2512	while (my ($face, $info) = each %$faces) {	3329	while (my ($face, $info) = each %$faces) {
2513	next unless $info->{smooth};	3330	next unless $info->{smooth};
		3331
2514	my $idx = cf::face::find $face	3332	my $idx = cf::face::find $face
2515	or next;	3333	or next;
		3334
2516	if (my $smooth = cf::face::find $info->{smooth}) {	3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
2517	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2518	} else {	3338	} else {
2519	warn "smooth face '$info->{smooth}' not found for face '$face'";	3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
2520	}	3340	}
2521	Coro::cede;	3341
		3342	cf::cede_to_tick;
2522	}	3343	}
2523	}	3344	}
2524		3345
2525	{	3346	{
2526	my $anims = $facedata->{animinfo};	3347	my $anims = $facedata->{animinfo};
2527		3348
2528	while (my ($anim, $info) = each %$anims) {	3349	while (my ($anim, $info) = each %$anims) {
2529	cf::anim::set $anim, $info->{frames}, $info->{facings};	3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
2530	Coro::cede;	3351	cf::cede_to_tick;
2531	}	3352	}
2532		3353
2533	cf::anim::invalidate_all; # d'oh	3354	cf::anim::invalidate_all; # d'oh
2534	}	3355	}
2535		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
2536	1	3376	1
2537	}	3377	}
2538		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	$status
		3415	}
		3416
2539	sub reload_regions {	3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
2540	load_resource_file "$MAPDIR/regions"	3422	load_resource_file "$MAPDIR/regions"
2541	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 $_->{match};
		3428	}
2542	}	3429	}
2543		3430
2544	sub reload_facedata {	3431	sub reload_facedata {
2545	load_facedata "$DATADIR/facedata"	3432	load_facedata "$DATADIR/facedata"
2546	or die "unable to load facedata\n";	3433	or die "unable to load facedata\n";
…		…
2557	}	3444	}
2558		3445
2559	sub reload_resources {	3446	sub reload_resources {
2560	warn "reloading resource files...\n";	3447	warn "reloading resource files...\n";
2561		3448
2562	reload_regions;
2563	reload_facedata;	3449	reload_facedata;
2564	reload_archetypes;	3450	reload_archetypes;
		3451	reload_regions;
2565	reload_treasures;	3452	reload_treasures;
2566		3453
2567	warn "finished reloading resource files\n";	3454	warn "finished reloading resource files\n";
2568	}	3455	}
2569		3456
2570	sub init {	3457	sub reload_config {
2571	reload_resources;	3458	warn "reloading config file...\n";
2572	}
2573		3459
2574	sub cfg_load {
2575	open my $fh, "<:utf8", "$CONFDIR/config"	3460	open my $fh, "<:utf8", "$CONFDIR/config"
2576	or return;	3461	or return;
2577		3462
2578	local $/;	3463	local $/;
2579	*CFG = YAML::Syck::Load <$fh>;	3464	*CFG = YAML::XS::Load scalar <$fh>;
2580		3465
2581	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2582		3467
2583	$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};
2584	$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};
…		…
2588	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2589	and die "WARNING: m(un)lockall failed: $!\n";	3474	and die "WARNING: m(un)lockall failed: $!\n";
2590	};	3475	};
2591	warn $@ if $@;	3476	warn $@ if $@;
2592	}	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;
2593	}	3508	}
2594		3509
2595	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
2596	# we must not ever block the main coroutine	3525	# we must not ever block the main coroutine
2597	local $Coro::idle = sub {	3526	local $Coro::idle = sub {
2598	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#
2599	(async {	3528	(async {
2600	Event::one_event;	3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
2601	})->prio (Coro::PRIO_MAX);	3531	})->prio (Coro::PRIO_MAX);
2602	};	3532	};
2603		3533
2604	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;
2605	db_init;	3542	db_init;
		3543
		3544	cf::init_uuid;
		3545	cf::init_signals;
		3546	cf::init_skills;
		3547
		3548	cf::init_beforeplay;
		3549
		3550	atomic;
		3551
2606	load_extensions;	3552	load_extensions;
2607		3553
2608	$TICK_WATCHER->start;	3554	utime time, time, $RUNTIMEFILE;
2609	Event::loop;	3555
		3556	# no (long-running) fork's whatsoever before this point(!)
		3557	use POSIX ();
		3558	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3559
		3560	(pop @POST_INIT)->(0) while @POST_INIT;
		3561	};
		3562
		3563	main_loop;
2610	}	3564	}
2611		3565
2612	#############################################################################	3566	#############################################################################
2613	# initialisation and cleanup	3567	# initialisation and cleanup
2614		3568
2615	# install some emergency cleanup handlers	3569	# install some emergency cleanup handlers
2616	BEGIN {	3570	BEGIN {
		3571	our %SIGWATCHER = ();
2617	for my $signal (qw(INT HUP TERM)) {	3572	for my $signal (qw(INT HUP TERM)) {
2618	Event->signal (	3573	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2619	reentrant => 0,
2620	data => WF_AUTOCANCEL,
2621	signal => $signal,
2622	prio => 0,
2623	cb => sub {
2624	cf::cleanup "SIG$signal";	3574	cf::cleanup "SIG$signal";
2625	},
2626	);	3575	};
		3576	}
		3577	}
		3578
		3579	sub write_runtime_sync {
		3580	my $t0 = EV::time;
		3581
		3582	# first touch the runtime file to show we are still running:
		3583	# the fsync below can take a very very long time.
		3584
		3585	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3586
		3587	my $guard = cf::lock_acquire "write_runtime";
		3588
		3589	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3590	or return;
		3591
		3592	my $value = $cf::RUNTIME + 90 + 10;
		3593	# 10 is the runtime save interval, for a monotonic clock
		3594	# 60 allows for the watchdog to kill the server.
		3595
		3596	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3597	and return;
		3598
		3599	# always fsync - this file is important
		3600	aio_fsync $fh
		3601	and return;
		3602
		3603	# touch it again to show we are up-to-date
		3604	aio_utime $fh, undef, undef;
		3605
		3606	close $fh
		3607	or return;
		3608
		3609	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3610	and return;
		3611
		3612	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3613
2627	}	3614	1
		3615	}
		3616
		3617	our $uuid_lock;
		3618	our $uuid_skip;
		3619
		3620	sub write_uuid_sync($) {
		3621	$uuid_skip ||= $_[0];
		3622
		3623	return if $uuid_lock;
		3624	local $uuid_lock = 1;
		3625
		3626	my $uuid = "$LOCALDIR/uuid";
		3627
		3628	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3629	or return;
		3630
		3631	my $value = uuid_seq uuid_cur;
		3632
		3633	unless ($value) {
		3634	warn "cowardly refusing to write zero uuid value!\n";
		3635	return;
		3636	}
		3637
		3638	my $value = uuid_str $value + $uuid_skip;
		3639	$uuid_skip = 0;
		3640
		3641	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3642	and return;
		3643
		3644	# always fsync - this file is important
		3645	aio_fsync $fh
		3646	and return;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$uuid~", $uuid
		3652	and return;
		3653
		3654	warn "uuid file written ($value).\n";
		3655
		3656	1
		3657
		3658	}
		3659
		3660	sub write_uuid($$) {
		3661	my ($skip, $sync) = @_;
		3662
		3663	$sync ? write_uuid_sync $skip
		3664	: async { write_uuid_sync $skip };
2628	}	3665	}
2629		3666
2630	sub emergency_save() {	3667	sub emergency_save() {
2631	my $freeze_guard = cf::freeze_mainloop;	3668	my $freeze_guard = cf::freeze_mainloop;
2632		3669
2633	warn "enter emergency perl save\n";	3670	warn "emergency_perl_save: enter\n";
2634		3671
2635	cf::sync_job {	3672	cf::sync_job {
		3673	# this is a trade-off: we want to be very quick here, so
		3674	# save all maps without fsync, and later call a global sync
		3675	# (which in turn might be very very slow)
		3676	local $USE_FSYNC = 0;
		3677
2636	# use a peculiar iteration method to avoid tripping on perl	3678	# use a peculiar iteration method to avoid tripping on perl
2637	# refcount bugs in for. also avoids problems with players	3679	# refcount bugs in for. also avoids problems with players
2638	# and maps saved/destroyed asynchronously.	3680	# and maps saved/destroyed asynchronously.
2639	warn "begin emergency player save\n";	3681	warn "emergency_perl_save: begin player save\n";
2640	for my $login (keys %cf::PLAYER) {	3682	for my $login (keys %cf::PLAYER) {
2641	my $pl = $cf::PLAYER{$login} or next;	3683	my $pl = $cf::PLAYER{$login} or next;
2642	$pl->valid or next;	3684	$pl->valid or next;
		3685	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2643	$pl->save;	3686	$pl->save;
2644	}	3687	}
2645	warn "end emergency player save\n";	3688	warn "emergency_perl_save: end player save\n";
2646		3689
2647	warn "begin emergency map save\n";	3690	warn "emergency_perl_save: begin map save\n";
2648	for my $path (keys %cf::MAP) {	3691	for my $path (keys %cf::MAP) {
2649	my $map = $cf::MAP{$path} or next;	3692	my $map = $cf::MAP{$path} or next;
2650	$map->valid or next;	3693	$map->valid or next;
2651	$map->save;	3694	$map->save;
2652	}	3695	}
2653	warn "end emergency map save\n";	3696	warn "emergency_perl_save: end map save\n";
2654		3697
2655	warn "begin emergency database checkpoint\n";	3698	warn "emergency_perl_save: begin database checkpoint\n";
2656	BDB::db_env_txn_checkpoint $DB_ENV;	3699	BDB::db_env_txn_checkpoint $DB_ENV;
2657	warn "end emergency database checkpoint\n";	3700	warn "emergency_perl_save: end database checkpoint\n";
		3701
		3702	warn "emergency_perl_save: begin write uuid\n";
		3703	write_uuid_sync 1;
		3704	warn "emergency_perl_save: end write uuid\n";
2658	};	3705	};
2659		3706
		3707	warn "emergency_perl_save: starting sync()\n";
		3708	IO::AIO::aio_sync sub {
		3709	warn "emergency_perl_save: finished sync()\n";
		3710	};
		3711
2660	warn "leave emergency perl save\n";	3712	warn "emergency_perl_save: leave\n";
2661	}	3713	}
2662		3714
2663	sub post_cleanup {	3715	sub post_cleanup {
2664	my ($make_core) = @_;	3716	my ($make_core) = @_;
2665		3717
2666	warn Carp::longmess "post_cleanup backtrace"	3718	warn Carp::longmess "post_cleanup backtrace"
2667	if $make_core;	3719	if $make_core;
		3720
		3721	my $fh = pidfile;
		3722	unlink $PIDFILE if <$fh> == $$;
		3723	}
		3724
		3725	# a safer delete_package, copied from Symbol
		3726	sub clear_package($) {
		3727	my $pkg = shift;
		3728
		3729	# expand to full symbol table name if needed
		3730	unless ($pkg =~ /^main::.*::$/) {
		3731	$pkg = "main$pkg" if $pkg =~ /^::/;
		3732	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3733	$pkg .= '::' unless $pkg =~ /::$/;
		3734	}
		3735
		3736	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3737	my $stem_symtab = *{$stem}{HASH};
		3738
		3739	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3740	or return;
		3741
		3742	# clear all symbols
		3743	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3744	for my $name (keys %$leaf_symtab) {
		3745	_gv_clear *{"$pkg$name"};
		3746	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3747	}
		3748	warn "cleared package $pkg\n";#d#
2668	}	3749	}
2669		3750
2670	sub do_reload_perl() {	3751	sub do_reload_perl() {
2671	# can/must only be called in main	3752	# can/must only be called in main
2672	if ($Coro::current != $Coro::main) {	3753	if ($Coro::current != $Coro::main) {
2673	warn "can only reload from main coroutine";	3754	warn "can only reload from main coroutine";
2674	return;	3755	return;
2675	}	3756	}
2676		3757
		3758	return if $RELOAD++;
		3759
		3760	my $t1 = EV::time;
		3761
		3762	while ($RELOAD) {
2677	warn "reloading...";	3763	warn "reloading...";
2678		3764
2679	warn "entering sync_job";	3765	warn "entering sync_job";
2680		3766
2681	cf::sync_job {	3767	cf::sync_job {
2682	cf::write_runtime; # external watchdog should not bark	3768	cf::write_runtime_sync; # external watchdog should not bark
2683	cf::emergency_save;	3769	cf::emergency_save;
2684	cf::write_runtime; # external watchdog should not bark	3770	cf::write_runtime_sync; # external watchdog should not bark
2685		3771
2686	warn "syncing database to disk";	3772	warn "syncing database to disk";
2687	BDB::db_env_txn_checkpoint $DB_ENV;	3773	BDB::db_env_txn_checkpoint $DB_ENV;
2688		3774
2689	# if anything goes wrong in here, we should simply crash as we already saved	3775	# if anything goes wrong in here, we should simply crash as we already saved
2690		3776
2691	warn "cancelling all WF_AUTOCANCEL watchers";
2692	for (Event::all_watchers) {
2693	$_->cancel if $_->data & WF_AUTOCANCEL;
2694	}
2695
2696	warn "flushing outstanding aio requests";	3777	warn "flushing outstanding aio requests";
2697	for (;;) {
2698	BDB::flush;
2699	IO::AIO::flush;
2700	Coro::cede;
2701	last unless IO::AIO::nreqs || BDB::nreqs;	3778	while (IO::AIO::nreqs || BDB::nreqs) {
2702	warn "iterate...";	3779	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2703	}
2704
2705	++$RELOAD;
2706
2707	warn "cancelling all extension coros";
2708	$_->cancel for values %EXT_CORO;
2709	%EXT_CORO = ();
2710
2711	warn "removing commands";
2712	%COMMAND = ();
2713
2714	warn "removing ext commands";
2715	%EXTCMD = ();
2716
2717	warn "unloading/nuking all extensions";
2718	for my $pkg (@EXTS) {
2719	warn "... unloading $pkg";
2720
2721	if (my $cb = $pkg->can ("unload")) {
2722	eval {
2723	$cb->($pkg);
2724	1
2725	} or warn "$pkg unloaded, but with errors: $@";
2726	}	3780	}
2727		3781
2728	warn "... nuking $pkg";	3782	warn "cancelling all extension coros";
2729	Symbol::delete_package $pkg;	3783	$_->cancel for values %EXT_CORO;
2730	}	3784	%EXT_CORO = ();
2731		3785
2732	warn "unloading all perl modules loaded from $LIBDIR";	3786	warn "removing commands";
2733	while (my ($k, $v) = each %INC) {	3787	%COMMAND = ();
2734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2735		3788
		3789	warn "removing ext/exti commands";
		3790	%EXTCMD = ();
		3791	%EXTICMD = ();
		3792
		3793	warn "unloading/nuking all extensions";
		3794	for my $pkg (@EXTS) {
2736	warn "... unloading $k";	3795	warn "... unloading $pkg";
2737	delete $INC{$k};
2738		3796
2739	$k =~ s/\.pm$//;
2740	$k =~ s/\//::/g;
2741
2742	if (my $cb = $k->can ("unload_module")) {	3797	if (my $cb = $pkg->can ("unload")) {
		3798	eval {
2743	$cb->();	3799	$cb->($pkg);
		3800	1
		3801	} or warn "$pkg unloaded, but with errors: $@";
		3802	}
		3803
		3804	warn "... clearing $pkg";
		3805	clear_package $pkg;
2744	}	3806	}
2745		3807
2746	Symbol::delete_package $k;	3808	warn "unloading all perl modules loaded from $LIBDIR";
		3809	while (my ($k, $v) = each %INC) {
		3810	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3811
		3812	warn "... unloading $k";
		3813	delete $INC{$k};
		3814
		3815	$k =~ s/\.pm$//;
		3816	$k =~ s/\//::/g;
		3817
		3818	if (my $cb = $k->can ("unload_module")) {
		3819	$cb->();
		3820	}
		3821
		3822	clear_package $k;
2747	}	3823	}
2748		3824
2749	warn "getting rid of safe::, as good as possible";	3825	warn "getting rid of safe::, as good as possible";
2750	Symbol::delete_package "safe::$_"	3826	clear_package "safe::$_"
2751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3827	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2752		3828
2753	warn "unloading cf.pm \"a bit\"";	3829	warn "unloading cf.pm \"a bit\"";
2754	delete $INC{"cf.pm"};	3830	delete $INC{"cf.pm"};
2755	delete $INC{"cf/pod.pm"};	3831	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2756		3832
2757	# don't, removes xs symbols, too,	3833	# don't, removes xs symbols, too,
2758	# and global variables created in xs	3834	# and global variables created in xs
2759	#Symbol::delete_package __PACKAGE__;	3835	#clear_package __PACKAGE__;
2760		3836
2761	warn "unload completed, starting to reload now";	3837	warn "unload completed, starting to reload now";
2762		3838
2763	warn "reloading cf.pm";	3839	warn "reloading cf.pm";
2764	require cf;	3840	require cf;
2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3841	cf::_connect_to_perl_1;
2766		3842
2767	warn "loading config and database again";	3843	warn "loading config and database again";
2768	cf::cfg_load;	3844	cf::reload_config;
2769		3845
2770	warn "loading extensions";	3846	warn "loading extensions";
2771	cf::load_extensions;	3847	cf::load_extensions;
2772		3848
		3849	if ($REATTACH_ON_RELOAD) {
2773	warn "reattaching attachments to objects/players";	3850	warn "reattaching attachments to objects/players";
2774	_global_reattach; # objects, sockets	3851	_global_reattach; # objects, sockets
2775	warn "reattaching attachments to maps";	3852	warn "reattaching attachments to maps";
2776	reattach $_ for values %MAP;	3853	reattach $_ for values %MAP;
2777	warn "reattaching attachments to players";	3854	warn "reattaching attachments to players";
2778	reattach $_ for values %PLAYER;	3855	reattach $_ for values %PLAYER;
		3856	}
2779		3857
		3858	warn "running post_init jobs";
		3859	(pop @POST_INIT)->(1) while @POST_INIT;
		3860
2780	warn "leaving sync_job";	3861	warn "leaving sync_job";
2781		3862
2782	1	3863	1
2783	} or do {	3864	} or do {
2784	warn $@;	3865	warn $@;
2785	warn "error while reloading, exiting.";	3866	cf::cleanup "error while reloading, exiting.";
2786	exit 1;
2787	};	3867	};
2788		3868
2789	warn "reloaded";	3869	warn "reloaded";
		3870	--$RELOAD;
		3871	}
		3872
		3873	$t1 = EV::time - $t1;
		3874	warn "reload completed in ${t1}s\n";
2790	};	3875	};
2791		3876
2792	our $RELOAD_WATCHER; # used only during reload	3877	our $RELOAD_WATCHER; # used only during reload
2793		3878
2794	sub reload_perl() {	3879	sub reload_perl() {
2795	# doing reload synchronously and two reloads happen back-to-back,	3880	# doing reload synchronously and two reloads happen back-to-back,
2796	# coro crashes during coro_state_free->destroy here.	3881	# coro crashes during coro_state_free->destroy here.
2797		3882
2798	$RELOAD_WATCHER ||= Event->timer (	3883	$RELOAD_WATCHER ||= cf::async {
2799	reentrant => 0,	3884	Coro::AIO::aio_wait cache_extensions;
2800	after => 0,	3885
2801	data => WF_AUTOCANCEL,	3886	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2802	cb => sub {
2803	do_reload_perl;	3887	do_reload_perl;
2804	undef $RELOAD_WATCHER;	3888	undef $RELOAD_WATCHER;
2805	},	3889	};
2806	);	3890	};
2807	}	3891	}
2808		3892
2809	register_command "reload" => sub {	3893	register_command "reload" => sub {
2810	my ($who, $arg) = @_;	3894	my ($who, $arg) = @_;
2811		3895
2812	if ($who->flag (FLAG_WIZ)) {	3896	if ($who->flag (FLAG_WIZ)) {
2813	$who->message ("reloading server.");	3897	$who->message ("reloading server.");
		3898	async {
		3899	$Coro::current->{desc} = "perl_reload";
2814	async { reload_perl };	3900	reload_perl;
		3901	};
2815	}	3902	}
2816	};	3903	};
2817		3904
2818	unshift @INC, $LIBDIR;	3905	unshift @INC, $LIBDIR;
2819		3906
…		…
2821		3908
2822	our @WAIT_FOR_TICK;	3909	our @WAIT_FOR_TICK;
2823	our @WAIT_FOR_TICK_BEGIN;	3910	our @WAIT_FOR_TICK_BEGIN;
2824		3911
2825	sub wait_for_tick {	3912	sub wait_for_tick {
2826	return unless $TICK_WATCHER->is_active;
2827	return if $Coro::current == $Coro::main;	3913	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2828		3914
2829	my $signal = new Coro::Signal;	3915	my $signal = new Coro::Signal;
2830	push @WAIT_FOR_TICK, $signal;	3916	push @WAIT_FOR_TICK, $signal;
2831	$signal->wait;	3917	$signal->wait;
2832	}	3918	}
2833		3919
2834	sub wait_for_tick_begin {	3920	sub wait_for_tick_begin {
2835	return unless $TICK_WATCHER->is_active;
2836	return if $Coro::current == $Coro::main;	3921	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2837		3922
2838	my $signal = new Coro::Signal;	3923	my $signal = new Coro::Signal;
2839	push @WAIT_FOR_TICK_BEGIN, $signal;	3924	push @WAIT_FOR_TICK_BEGIN, $signal;
2840	$signal->wait;	3925	$signal->wait;
2841	}	3926	}
2842		3927
2843	my $min = 1e6;#d#	3928	sub tick {
2844	my $avg = 10;
2845	$TICK_WATCHER = Event->timer (
2846	reentrant => 0,
2847	parked => 1,
2848	prio => 0,
2849	at => $NEXT_TICK || $TICK,
2850	data => WF_AUTOCANCEL,
2851	cb => sub {
2852	if ($Coro::current != $Coro::main) {	3929	if ($Coro::current != $Coro::main) {
2853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3930	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2854	unless ++$bug_warning > 10;	3931	unless ++$bug_warning > 10;
2855	return;	3932	return;
2856	}	3933	}
2857		3934
2858	$NOW = $tick_start = Event::time;
2859
2860	cf::server_tick; # one server iteration	3935	cf::server_tick; # one server iteration
2861		3936
2862	0 && sync_job {#d#	3937	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2863	for(1..10) {
2864	my $t = Event::time;
2865	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2866	or die;
2867		3938
2868	$map->width (50);	3939	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2869	$map->height (50);	3940	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2870	$map->alloc;	3941	Coro::async_pool {
2871	$map->_load_objects ("/tmp/x.map", 1);	3942	$Coro::current->{desc} = "runtime saver";
2872	my $t = Event::time - $t;	3943	write_runtime_sync
2873		3944	or warn "ERROR: unable to write runtime file: $!";
2874	#next unless $t < 0.0013;#d#
2875	if ($t < $min) {
2876	$min = $t;
2877	}
2878	$avg = $avg * 0.99 + $t * 0.01;
2879	}
2880	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2881	exit 0;
2882	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2883	};	3945	};
		3946	}
2884		3947
2885	$RUNTIME += $TICK;
2886	$NEXT_TICK += $TICK;
2887
2888	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2889	$NEXT_RUNTIME_WRITE = $NOW + 10;
2890	Coro::async_pool {
2891	write_runtime
2892	or warn "ERROR: unable to write runtime file: $!";
2893	};
2894	}
2895
2896	# my $AFTER = Event::time;
2897	# warn $AFTER - $NOW;#d#
2898
2899	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3948	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2900	$sig->send;	3949	$sig->send;
2901	}	3950	}
2902	while (my $sig = shift @WAIT_FOR_TICK) {	3951	while (my $sig = shift @WAIT_FOR_TICK) {
2903	$sig->send;	3952	$sig->send;
2904	}	3953	}
2905		3954
2906	$NOW = Event::time;	3955	$LOAD = ($NOW - $TICK_START) / $TICK;
2907
2908	# if we are delayed by four ticks or more, skip them all
2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2910
2911	$TICK_WATCHER->at ($NEXT_TICK);
2912	$TICK_WATCHER->start;
2913
2914	$LOAD = ($NOW - $tick_start) / $TICK;
2915	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3956	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2916		3957
2917	_post_tick;	3958	if (0) {
2918		3959	if ($NEXT_TICK) {
2919		3960	my $jitter = $TICK_START - $NEXT_TICK;
		3961	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3962	warn "jitter $JITTER\n";#d#
		3963	}
2920	},	3964	}
2921	);	3965	}
2922		3966
2923	{	3967	{
2924	BDB::max_poll_time $TICK * 0.1;	3968	# configure BDB
2925	$BDB_POLL_WATCHER = Event->io (	3969
2926	reentrant => 0,
2927	fd => BDB::poll_fileno,
2928	poll => 'r',
2929	prio => 0,
2930	data => WF_AUTOCANCEL,
2931	cb => \&BDB::poll_cb,
2932	);
2933	BDB::min_parallel 8;	3970	BDB::min_parallel 16;
2934		3971	BDB::max_poll_reqs $TICK * 0.1;
2935	BDB::set_sync_prepare {	3972	$AnyEvent::BDB::WATCHER->priority (1);
2936	my $status;
2937	my $current = $Coro::current;
2938	(
2939	sub {
2940	$status = $!;
2941	$current->ready; undef $current;
2942	},
2943	sub {
2944	Coro::schedule while defined $current;
2945	$! = $status;
2946	},
2947	)
2948	};
2949		3973
2950	unless ($DB_ENV) {	3974	unless ($DB_ENV) {
2951	$DB_ENV = BDB::db_env_create;	3975	$DB_ENV = BDB::db_env_create;
		3976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3977	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3978	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3979	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3980	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2952		3981
2953	cf::sync_job {	3982	cf::sync_job {
2954	eval {	3983	eval {
2955	BDB::db_env_open	3984	BDB::db_env_open
2956	$DB_ENV,	3985	$DB_ENV,
…		…
2958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3987	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3988	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2960	0666;	3989	0666;
2961		3990
2962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3991	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2963
2964	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2965	$DB_ENV->set_lk_detect;
2966	};	3992	};
2967		3993
2968	cf::cleanup "db_env_open(db): $@" if $@;	3994	cf::cleanup "db_env_open(db): $@" if $@;
2969	};	3995	};
2970	}	3996	}
		3997
		3998	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3999	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4000	};
		4001	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4002	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4003	};
		4004	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4005	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4006	};
2971	}	4007	}
2972		4008
2973	{	4009	{
		4010	# configure IO::AIO
		4011
2974	IO::AIO::min_parallel 8;	4012	IO::AIO::min_parallel 8;
2975
2976	undef $Coro::AIO::WATCHER;
2977	IO::AIO::max_poll_time $TICK * 0.1;	4013	IO::AIO::max_poll_time $TICK * 0.1;
2978	$AIO_POLL_WATCHER = Event->io (	4014	undef $AnyEvent::AIO::WATCHER;
2979	reentrant => 0,
2980	data => WF_AUTOCANCEL,
2981	fd => IO::AIO::poll_fileno,
2982	poll => 'r',
2983	prio => 6,
2984	cb => \&IO::AIO::poll_cb,
2985	);
2986	}	4015	}
2987		4016
2988	my $_log_backtrace;	4017	my $_log_backtrace;
2989		4018
2990	sub _log_backtrace {	4019	sub _log_backtrace {
…		…
2993	$msg =~ s/\n//;	4022	$msg =~ s/\n//;
2994		4023
2995	# limit the # of concurrent backtraces	4024	# limit the # of concurrent backtraces
2996	if ($_log_backtrace < 2) {	4025	if ($_log_backtrace < 2) {
2997	++$_log_backtrace;	4026	++$_log_backtrace;
		4027	my $perl_bt = Carp::longmess $msg;
2998	async {	4028	async {
		4029	$Coro::current->{desc} = "abt $msg";
		4030
2999	my @bt = fork_call {	4031	my @bt = fork_call {
3000	@addr = map { sprintf "%x", $_ } @addr;	4032	@addr = map { sprintf "%x", $_ } @addr;
3001	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4033	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3002	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4034	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3003	or die "addr2line: $!";	4035	or die "addr2line: $!";
…		…
3011	}	4043	}
3012		4044
3013	@funcs	4045	@funcs
3014	};	4046	};
3015		4047
3016	LOG llevInfo, "[ABT] $msg\n";	4048	LOG llevInfo, "[ABT] $perl_bt\n";
		4049	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3017	LOG llevInfo, "[ABT] $_\n" for @bt;	4050	LOG llevInfo, "[ABT] $_\n" for @bt;
3018	--$_log_backtrace;	4051	--$_log_backtrace;
3019	};	4052	};
3020	} else {	4053	} else {
3021	LOG llevInfo, "[ABT] $msg\n";	4054	LOG llevInfo, "[ABT] $msg\n";
3022	LOG llevInfo, "[ABT] [suppressed]\n";	4055	LOG llevInfo, "[ABT] [suppressed]\n";
3023	}	4056	}
3024	}	4057	}
3025		4058
3026	# load additional modules	4059	# load additional modules
3027	use cf::pod;	4060	require "cf/$_.pm" for @EXTRA_MODULES;
		4061	cf::_connect_to_perl_2;
3028		4062
3029	END { cf::emergency_save }	4063	END { cf::emergency_save }
3030		4064
3031	1	4065	1
3032		4066

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