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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.272 by root, Sun Jun 3 15:32:50 2007 UTC vs.
Revision 1.511 by root, Wed Apr 7 18:35:56 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} = $pl
1054	}	1534	}
1055	}	1535	}
1056	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
1057		1550
1058	sub save($) {	1551	sub save($) {
1059	my ($pl) = @_;	1552	my ($pl) = @_;
1060		1553
1061	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
1066	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
1067		1560
1068	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1070		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
1071	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
1072	Coro::cede;	1570	cf::cede_to_tick;
1073	}	1571	}
1074		1572
1075	sub new($) {	1573	sub new($) {
1076	my ($login) = @_;	1574	my ($login) = @_;
1077		1575
…		…
1083	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1084		1582
1085	$self	1583	$self
1086	}	1584	}
1087		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1088	=item $pl->quit_character	1596	=item $pl->quit_character
1089		1597
1090	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1092		1600
…		…
1096	my ($pl) = @_;	1604	my ($pl) = @_;
1097		1605
1098	my $name = $pl->ob->name;	1606	my $name = $pl->ob->name;
1099		1607
1100	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1101	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1102		1610
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1107		1617
1108	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1655	or return [];
1146		1656
1147	my @logins;	1657	my @logins;
1148		1658
1149	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1153		1669
1154	utf8::decode $login;	1670	utf8::decode $login;
1155	push @logins, $login;	1671	push @logins, $login;
1156	}	1672	}
1157		1673
…		…
1184	}	1700	}
1185		1701
1186	\@paths	1702	\@paths
1187	}	1703	}
1188		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1189	=item $player->ext_reply ($msgid, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1190		1710
1191	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1192		1712
1193	=cut	1713	=cut
1194		1714
1195	sub ext_reply($$%) {	1715	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1197		1717
1198	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1719	}
1202		1720
1203	=item $player->ext_event ($type, %msg)	1721	=item $player->ext_msg ($type, @msg)
1204		1722
1205	Sends an ext event to the client.	1723	Sends an ext event to the client.
1206		1724
1207	=cut	1725	=cut
1208		1726
1209	sub ext_event($$%) {	1727	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1728	my ($self, $type, @msg) = @_;
1211		1729
1212	$self->ns->ext_event ($type, %msg);	1730	$self->ns->ext_msg ($type, @msg);
1213	}	1731	}
1214		1732
1215	=head3 cf::region	1733	=head3 cf::region
1216		1734
1217	=over 4	1735	=over 4
…		…
1220		1738
1221	package cf::region;	1739	package cf::region;
1222		1740
1223	=item cf::region::find_by_path $path	1741	=item cf::region::find_by_path $path
1224		1742
1225	Tries to decuce the probable region for a map knowing only its path.	1743	Tries to decuce the likely region for a map knowing only its path.
1226		1744
1227	=cut	1745	=cut
1228		1746
1229	sub find_by_path($) {	1747	sub find_by_path($) {
1230	my ($path) = @_;	1748	my ($path) = @_;
1231		1749
1232	my ($match, $specificity);	1750	my ($match, $specificity);
1233		1751
1234	for my $region (list) {	1752	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1753	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1754	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1755	if $region->specificity > $specificity;
1238	}	1756	}
1239	}	1757	}
1240		1758
…		…
1261	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1263		1781
1264	sub generate_random_map {	1782	sub generate_random_map {
1265	my ($self, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1786
1266	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1788	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1271	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1272	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1304	my ($self, $merge) = @_;	1825	my ($self, $merge) = @_;
1305		1826
1306	# we have to keep some variables in memory intact	1827	# we have to keep some variables in memory intact
1307	local $self->{path};	1828	local $self->{path};
1308	local $self->{load_path};	1829	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1830
1312	$self->SUPER::thawer_merge ($merge);	1831	$self->SUPER::thawer_merge ($merge);
1313	}	1832	}
1314		1833
1315	sub normalise {	1834	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1881	$self->init; # pass $1 etc.
1363	return $self;	1882	return $self;
1364	}	1883	}
1365	}	1884	}
1366		1885
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1887	()
1369	}	1888	}
1370		1889
1371	sub init {	1890	sub init {
1372	my ($self) = @_;	1891	my ($self) = @_;
…		…
1394		1913
1395	# the temporary/swap location	1914	# the temporary/swap location
1396	sub save_path {	1915	sub save_path {
1397	my ($self) = @_;	1916	my ($self) = @_;
1398		1917
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1919	"$TMPDIR/$path.map"
1401	}	1920	}
1402		1921
1403	# the unique path, undef == no special unique path	1922	# the unique path, undef == no special unique path
1404	sub uniq_path {	1923	sub uniq_path {
1405	my ($self) = @_;	1924	my ($self) = @_;
1406		1925
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1927	"$UNIQUEDIR/$path"
1409	}	1928	}
1410		1929
1411	# and all this just because we cannot iterate over	1930	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1931	my ($self) = @_;
1415		1932
1416	$_->change_map_light ($change)	1933	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1934
		1935	$self->do_decay_objects;
1418	}	1936	}
1419		1937
1420	sub unlink_save {	1938	sub unlink_save {
1421	my ($self) = @_;	1939	my ($self) = @_;
1422		1940
…		…
1427		1945
1428	sub load_header_from($) {	1946	sub load_header_from($) {
1429	my ($self, $path) = @_;	1947	my ($self, $path) = @_;
1430		1948
1431	utf8::encode $path;	1949	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	or return;	1951	or return;
		1952
		1953	$self->_load_header ($f)
		1954	or return;
		1955
		1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
1437		1958
1438	$self->{load_path} = $path;	1959	$self->{load_path} = $path;
1439		1960
1440	1	1961	1
1441	}	1962	}
…		…
1480	$self->load_header_orig	2001	$self->load_header_orig
1481	or return;	2002	or return;
1482	$self->prepare_orig;	2003	$self->prepare_orig;
1483	}	2004	}
1484		2005
		2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
		2008
1485	$self->default_region (cf::region::find_by_path $self->{path})	2009	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	2010	unless $self->default_region;
1487		2011
1488	1	2012	1
1489	}	2013	}
…		…
1492	sub find {	2016	sub find {
1493	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1494		2018
1495	$path = normalise $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1496		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1498		2023
1499	$cf::MAP{$path} || do {	2024	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	2025	my $map = new_from_path cf::map $path
1502	or return;	2026	or return;
1503		2027
1504	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1505		2029
1506	$map->load_header	2030	$map->load_header
1507	or return;	2031	or return;
1508		2032
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2034	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1512	$map->reset;	2038	$map->reset;
1513	undef $guard;
1514	return find $path;	2039	return find $path;
1515	}	2040	}
1516		2041
1517	$cf::MAP{$path} = $map	2042	$cf::MAP{$path} = $map
1518	}	2043	}
1519	}	2044	}
1520		2045
1521	sub pre_load { }	2046	sub pre_load { }
1522	sub post_load { }	2047	#sub post_load { } # XS
1523		2048
1524	sub load {	2049	sub load {
1525	my ($self) = @_;	2050	my ($self) = @_;
1526		2051
1527	local $self->{deny_reset} = 1; # loading can take a long time	2052	local $self->{deny_reset} = 1; # loading can take a long time
1528		2053
1529	my $path = $self->{path};	2054	my $path = $self->{path};
1530		2055
1531	{	2056	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2057	my $guard = cf::lock_acquire "map_data:$path";
1533		2058
		2059	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2061
1536	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1537		2063
1538	$self->alloc;	2064	$self->alloc;
1539		2065
1540	$self->pre_load;	2066	$self->pre_load;
1541	Coro::cede;	2067	cf::cede_to_tick;
1542		2068
		2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2071	$self->_load_objects ($f)
1544	or return;	2072	or return;
1545		2073
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1547	if delete $self->{load_original};	2075	if delete $self->{load_original};
1548		2076
1549	if (my $uniq = $self->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2078	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2081	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1554	}	2085	}
1555	}	2086	}
1556		2087
1557	Coro::cede;	2088	$f->resolve_delayed_derefs;
		2089
		2090	cf::cede_to_tick;
1558	# now do the right thing for maps	2091	# now do the right thing for maps
1559	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2094	unless $self->difficulty;
1562	Coro::cede;	2095	cf::cede_to_tick;
1563		2096
1564	unless ($self->{deny_activate}) {	2097	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2098	$self->decay_objects;
1566	$self->fix_auto_apply;	2099	$self->fix_auto_apply;
1567	$self->update_buttons;	2100	$self->update_buttons;
1568	Coro::cede;	2101	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2102	$self->activate;
1572	}	2103	}
1573		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2108	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2109	}
1576		2110
1577	$self->post_load;	2111	$self->post_load;
1578	}	2112	}
1579		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
1580	sub customise_for {	2117	sub customise_for {
1581	my ($self, $ob) = @_;	2118	my ($self, $ob) = @_;
1582		2119
1583	return find "~" . $ob->name . "/" . $self->{path}	2120	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2121	if $self->per_player;
1585		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
1586	$self	2126	$self
1587	}	2127	}
1588		2128
1589	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2130	sub load_neighbours {
1591	my ($map) = @_;	2131	my ($map) = @_;
1592		2132
1593	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1594		2134
1595	for (0 .. 3) {	2135	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1597	or next;	2137	or next;
1598	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1599	or next;	2139	or next;
1600	$neigh->load;	2140	$neigh->load;
1601		2141
		2142	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2145	}
1605		2146
1606	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1608	or next;	2150	or next;
1609	$neigh->load;	2151	$neigh->load;
1610	}	2152	}
1611	}	2153	}
1612		2154
…		…
1617	}	2159	}
1618		2160
1619	sub do_load_sync {	2161	sub do_load_sync {
1620	my ($map) = @_;	2162	my ($map) = @_;
1621		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1622	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1623	}	2168	}
1624		2169
1625	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2171	our $MAP_PREFETCHER = undef;
1627		2172
1628	sub find_async {	2173	sub find_async {
1629	my ($path, $origin) = @_;	2174	my ($path, $origin, $load) = @_;
1630		2175
1631	$path = normalise $path, $origin && $origin->{path};	2176	$path = normalise $path, $origin && $origin->{path};
1632		2177
1633	if (my $map = $cf::MAP{$path}) {	2178	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2180	}
1636		2181
1637	undef $MAP_PREFETCH{$path};	2182	$MAP_PREFETCH{$path} |= $load;
		2183
1638	$MAP_PREFETCHER ||= cf::async {	2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
1639	while (%MAP_PREFETCH) {	2187	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2188	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2189	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2190	$map->load if $v;
		2191	}
1644		2192
1645	delete $MAP_PREFETCH{$path};	2193	delete $MAP_PREFETCH{$k};
1646	}	2194	}
1647	}	2195	}
1648	undef $MAP_PREFETCHER;	2196	undef $MAP_PREFETCHER;
1649	};	2197	};
1650	$MAP_PREFETCHER->prio (6);	2198	$MAP_PREFETCHER->prio (6);
…		…
1653	}	2201	}
1654		2202
1655	sub save {	2203	sub save {
1656	my ($self) = @_;	2204	my ($self) = @_;
1657		2205
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2207
1660	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1661		2209
1662	return unless $self->dirty;	2210	return unless $self->dirty;
1663		2211
…		…
1669	return if $self->{deny_save};	2217	return if $self->{deny_save};
1670		2218
1671	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1672		2220
1673	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1675	};	2224	};
		2225
		2226	cf::get_slot 0.02;
1676		2227
1677	if ($uniq) {	2228	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2231	} else {
…		…
1686	my ($self) = @_;	2237	my ($self) = @_;
1687		2238
1688	# save first because save cedes	2239	# save first because save cedes
1689	$self->save;	2240	$self->save;
1690		2241
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2243
1693	return if $self->players;	2244	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1695	return if $self->{deny_save};	2246	return if $self->{deny_save};
1696		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1697	$self->clear;	2252	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2253	}
1700		2254
1701	sub reset_at {	2255	sub reset_at {
1702	my ($self) = @_;	2256	my ($self) = @_;
1703		2257
1704	# TODO: safety, remove and allow resettable per-player maps	2258	# 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};	2259	return 1e99 if $self->{deny_reset};
1707		2260
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2263
…		…
1721	my ($self) = @_;	2274	my ($self) = @_;
1722		2275
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2277
1725	return if $self->players;	2278	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2279
1728	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
1729		2281
1730	$self->in_memory (cf::MAP_SWAPPED);	2282	$self->in_memory (cf::MAP_SWAPPED);
1731		2283
1732	# need to save uniques path	2284	# need to save uniques path
1733	unless ($self->{deny_save}) {	2285	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2289	if $uniq;
1738	}	2290	}
1739		2291
1740	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1741		2293
		2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2296	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2297
1746	$self->unlink_save;	2298	$self->unlink_save;
1747	$self->destroy;	2299	$self->destroy;
1748	}	2300	}
1749		2301
1750	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1751		2303
1752	sub nuke {	2304	sub nuke {
1753	my ($self) = @_;	2305	my ($self) = @_;
1754		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
1755	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1756		2311
1757	$self->unlink_save;	2312	$self->unlink_save;
1758		2313
1759	bless $self, "cf::map";	2314	bless $self, "cf::map";
1760	delete $self->{deny_reset};	2315	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2319
1765	$cf::MAP{$self->path} = $self;	2320	$cf::MAP{$self->path} = $self;
		2321	}
1766		2322
1767	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1768	}	2360	}
1769		2361
1770	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1771		2363
1772	Returns an arrayref of paths of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2365	instantiated unique items. May block.
1774		2366
1775	=cut	2367	=cut
1776		2368
1777	sub unique_maps() {	2369	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2370	[
1779	or return;	2371	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2372	utf8::decode $_;
1785	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2375	? ()
1788	push @paths, cf::map::normalise $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2378	]
1790
1791	\@paths
1792	}	2379	}
1793		2380
1794	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1795		2412
1796	=back	2413	=back
1797		2414
1798	=head3 cf::object	2415	=head3 cf::object
1799		2416
…		…
1803		2420
1804	=over 4	2421	=over 4
1805		2422
1806	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1807		2424
1808	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1809		2427
1810	=cut	2428	=cut
1811		2429
1812	sub inv_recursive_;	2430	sub inv_recursive_;
1813	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1816		2434
1817	sub inv_recursive {	2435	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1819	}	2437	}
1820		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1821	package cf;	2467	package cf;
1822		2468
1823	=back	2469	=back
1824		2470
1825	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1831	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	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	2478	can be C<undef>. Does the right thing when the player is currently in a
1833	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1834		2480
1835	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1836		2496
1837	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2498	# with dialog boxes.
1839	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1840	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1842		2502
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2504
1845	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1847	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1850	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1851	}	2530	}
1852		2531
1853	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1854		2533
1855	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1868		2547
1869	=item $player_object->enter_link	2548	=item $player_object->enter_link
1870		2549
1871	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1872		2551
1873	The player should be reasonably safe there for short amounts of time. You	2552	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.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
1875		2556
1876	Will never block.	2557	Will never block.
1877		2558
1878	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1879		2560
…		…
1931	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1933		2614
1934	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1937		2618
1938	$map->load;	2619	$map->load;
1939	$map->load_diag;	2620	$map->load_neighbours;
1940		2621
1941	return unless $self->contr->active;	2622	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2623
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2625	$self->enter_map ($map, $x, $y);
1946	}
1947		2626
		2627	# only activate afterwards, to support waiting in hooks
		2628	$self->activate_recursive;
		2629	}
		2630
1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1949		2632
1950	Moves the player to the given map-path and coordinates by first freezing	2633	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	2634	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	2635	that has to return the map if sucecssful, and then unfreezes the player on
1953	the new (success) or old (failed) map position.	2636	the new (success) or old (failed) map position. In either case, $done will
		2637	be called at the end of this process.
		2638
		2639	Note that $check will be called with a potentially non-loaded map, so if
		2640	it needs a loaded map it has to call C<< ->load >>.
1954		2641
1955	=cut	2642	=cut
1956		2643
1957	our $GOTOGEN;	2644	our $GOTOGEN;
1958		2645
1959	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1960	my ($self, $path, $x, $y, $check) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
1961		2648
1962	# do generation counting so two concurrent goto's will be executed in-order	2649	# do generation counting so two concurrent goto's will be executed in-order
1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1964		2651
1965	$self->enter_link;	2652	$self->enter_link;
1966		2653
1967	(async {	2654	(async {
		2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
1968	my $map = eval {	2676	my $map = eval {
1969	my $map = cf::map::find $path;	2677	my $map = defined $path ? cf::map::find $path : undef;
1970		2678
1971	if ($map) {	2679	if ($map) {
1972	$map = $map->customise_for ($self);	2680	$map = $map->customise_for ($self);
1973	$map = $check->($map) if $check && $map;	2681	$map = $check->($map) if $check && $map;
1974	} else {	2682	} else {
1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1976	}	2684	}
1977		2685
1978	$map	2686	$map
1979	};	2687	};
1980		2688
…		…
1985		2693
1986	if ($gen == $self->{_goto_generation}) {	2694	if ($gen == $self->{_goto_generation}) {
1987	delete $self->{_goto_generation};	2695	delete $self->{_goto_generation};
1988	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
1989	}	2697	}
		2698
		2699	$done->() if $done;
1990	})->prio (1);	2700	})->prio (1);
1991	}	2701	}
1992		2702
1993	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1994		2704
…		…
2014	}	2724	}
2015		2725
2016	sub prepare_random_map {	2726	sub prepare_random_map {
2017	my ($exit) = @_;	2727	my ($exit) = @_;
2018		2728
2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
2020
2021	# all this does is basically replace the /! path by	2729	# all this does is basically replace the /! path by
2022	# a new random map path (?random/...) with a seed	2730	# a new random map path (?random/...) with a seed
2023	# that depends on the exit object	2731	# that depends on the exit object
2024		2732
2025	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
…		…
2027	if ($exit->map) {	2735	if ($exit->map) {
2028	$rmp->{region} = $exit->region->name;	2736	$rmp->{region} = $exit->region->name;
2029	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
2030	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
2031	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
2032	}	2742	}
2033		2743
2034	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
2035		2745
2036	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2037	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
2038	my $meta = "$RANDOMDIR/$md5.meta";	2748	my $meta = "$RANDOMDIR/$md5.meta";
2039		2749
2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2041	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
2042	undef $fh;	2752	undef $fh;
2043	aio_rename "$meta~", $meta;	2753	aio_rename "$meta~", $meta;
2044		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
2045	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
2046	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
2047	}	2761	}
2048	}	2762	}
2049		2763
2050	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
2051	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
2052		2766
2053	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
2054		2768
2055	if ($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;	2769	$self->enter_link;
2067		2770
2068	(async {	2771	(async {
2069	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
2070	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
		2781	prepare_random_map $exit
		2782	if $exit->slaying eq "/!";
		2783	}
		2784
		2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
		2788
2071	$self->goto ($slaying, $hp, $sp);	2789	$self->goto ($map, $x, $y);
2072		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
2073	1;	2795	1
2074	}) {	2796	}) {
2075	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
2076	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
2077	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
2078	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
2079		2801
2080	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
…		…
2099		2821
2100	utf8::encode $text;	2822	utf8::encode $text;
2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2102	}	2824	}
2103		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
2104	=item $client->ext_event ($type, %msg)	3013	=item $client->ext_msg ($type, @msg)
2105		3014
2106	Sends an exti event to the client.	3015	Sends an ext event to the client.
2107		3016
2108	=cut	3017	=cut
2109		3018
2110	sub cf::client::ext_event($$%) {	3019	sub cf::client::ext_msg($$@) {
2111	my ($self, $type, %msg) = @_;	3020	my ($self, $type, @msg) = @_;
2112		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
2113	$msg{msgtype} = "event_$type";	3025	push @msg, msgtype => "event_$type";
2114	$self->send_packet ("ext " . cf::to_json \%msg);	3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
2115	}	3046	}
2116		3047
2117	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
2118		3049
2119	Queues a query to the client, calling the given callback with	3050	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>,	3051	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>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2122		3053
2123	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
2124	reliable at some point in the future.	3055	become reliable at some point in the future.
2125		3056
2126	=cut	3057	=cut
2127		3058
2128	sub cf::client::query {	3059	sub cf::client::query {
2129	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
2137	utf8::encode $text;	3068	utf8::encode $text;
2138	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2139		3070
2140	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
2141	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
2142	}	3075	}
2143		3076
2144	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
2145	on_reply => sub {	3083	on_reply => sub {
2146	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
2147		3085
2148	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
2149	# get handled first	3087	# get handled first
…		…
2161	} else {	3099	} else {
2162	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2163	}	3101	}
2164	}	3102	}
2165	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
2166	);	3130	);
2167		3131
2168	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
2169		3133
2170	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
2186		3150
2187	$coro	3151	$coro
2188	}	3152	}
2189		3153
2190	cf::client->attach (	3154	cf::client->attach (
2191	on_destroy => sub {	3155	on_client_destroy => sub {
2192	my ($ns) = @_;	3156	my ($ns) = @_;
2193		3157
2194	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2195	},	3159	},
2196	);	3160	);
…		…
2211	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
2212	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
2213		3177
2214	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
2215		3179
2216	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2217		3185
2218	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2219		3187
2220	=pod	3188	=pod
2221		3189
2222	The following functions and methods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2223		3191
2224	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2225	cf::object::player player	3197	cf::object::player
2226	cf::player peaceful	3198	player
2227	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2228		3205
2229	=cut	3206	=cut
2230		3207
2231	for (	3208	for (
2232	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2233	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2234	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2235	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2236	) {	3215	) {
2237	no strict 'refs';	3216	no strict 'refs';
2238	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2239	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2257		3236
2258	my $qcode = $code;	3237	my $qcode = $code;
2259	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2260	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2261		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2262	local $_;	3244	local $_;
2263	local @safe::cf::_safe_eval_args = values %vars;
2264		3245
2265	my $eval =	3246	my $eval =
2266	"do {\n"	3247	"do {\n"
2267	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2268	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2269	. $code	3250	. $code
2270	. "\n}"	3251	. "\n}"
2271	;	3252	;
2272		3253
		3254	if ($CFG{safe_eval}) {
2273	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2274	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2275	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2276		3263
2277	if ($@) {	3264	if ($@) {
2278	warn "$@";	3265	warn "$@";
2279	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2280	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2299	=cut	3286	=cut
2300		3287
2301	sub register_script_function {	3288	sub register_script_function {
2302	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2303		3290
2304	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2305	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2306	}	3293	}
2307		3294
2308	=back	3295	=back
2309		3296
2310	=cut	3297	=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 $@;
2480	_exit 0;
2481	}
2482	}
2483		3298
2484	#############################################################################	3299	#############################################################################
2485	# the server's init and main functions	3300	# the server's init and main functions
2486		3301
2487	sub load_facedata($) {	3302	sub load_facedata($) {
2488	my ($path) = @_;	3303	my ($path) = @_;
		3304
		3305	# HACK to clear player env face cache, we need some signal framework
		3306	# for this (global event?)
		3307	%ext::player_env::MUSIC_FACE_CACHE = ();
		3308
		3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2489		3310
2490	warn "loading facedata from $path\n";	3311	warn "loading facedata from $path\n";
2491		3312
2492	my $facedata;	3313	my $facedata;
2493	0 < aio_load $path, $facedata	3314	0 < aio_load $path, $facedata
…		…
2496	$facedata = Coro::Storable::thaw $facedata;	3317	$facedata = Coro::Storable::thaw $facedata;
2497		3318
2498	$facedata->{version} == 2	3319	$facedata->{version} == 2
2499	or cf::cleanup "$path: version mismatch, cannot proceed.";	3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
2500		3321
		3322	# patch in the exptable
		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3324	$facedata->{resource}{"res/exp_table"} = {
		3325	type => FT_RSRC,
		3326	data => $exp_table,
		3327	hash => (Digest::MD5::md5 $exp_table),
		3328	};
		3329	cf::cede_to_tick;
		3330
2501	{	3331	{
2502	my $faces = $facedata->{faceinfo};	3332	my $faces = $facedata->{faceinfo};
2503		3333
2504	while (my ($face, $info) = each %$faces) {	3334	while (my ($face, $info) = each %$faces) {
2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2506	warn "$face $info->{magicmap}\n" if $face =~ /obol/;#d#	3336
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3337	cf::face::set_visibility $idx, $info->{visibility};
		3338	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2510	Coro::cede;	3341
		3342	cf::cede_to_tick;
2511	}	3343	}
2512		3344
2513	while (my ($face, $info) = each %$faces) {	3345	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	3346	next unless $info->{smooth};
		3347
2515	my $idx = cf::face::find $face	3348	my $idx = cf::face::find $face
2516	or next;	3349	or next;
		3350
2517	if (my $smooth = cf::face::find $info->{smooth}) {	3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	3354	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	3356	}
2522	Coro::cede;	3357
		3358	cf::cede_to_tick;
2523	}	3359	}
2524	}	3360	}
2525		3361
2526	{	3362	{
2527	my $anims = $facedata->{animinfo};	3363	my $anims = $facedata->{animinfo};
2528		3364
2529	while (my ($anim, $info) = each %$anims) {	3365	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	3367	cf::cede_to_tick;
2532	}	3368	}
2533		3369
2534	cf::anim::invalidate_all; # d'oh	3370	cf::anim::invalidate_all; # d'oh
2535	}	3371	}
2536		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3391
2537	1	3392	1
2538	}	3393	}
2539		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
2540	sub reload_regions {	3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
2541	load_resource_file "$MAPDIR/regions"	3438	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
2543	}	3445	}
2544		3446
2545	sub reload_facedata {	3447	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	3448	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	3449	or die "unable to load facedata\n";
…		…
2558	}	3460	}
2559		3461
2560	sub reload_resources {	3462	sub reload_resources {
2561	warn "reloading resource files...\n";	3463	warn "reloading resource files...\n";
2562		3464
2563	reload_regions;
2564	reload_facedata;	3465	reload_facedata;
2565	reload_archetypes;	3466	reload_archetypes;
		3467	reload_regions;
2566	reload_treasures;	3468	reload_treasures;
2567		3469
2568	warn "finished reloading resource files\n";	3470	warn "finished reloading resource files\n";
2569	}	3471	}
2570		3472
2571	sub init {	3473	sub reload_config {
2572	reload_resources;	3474	warn "reloading config file...\n";
2573	}
2574		3475
2575	sub cfg_load {
2576	open my $fh, "<:utf8", "$CONFDIR/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2577	or return;	3477	or return;
2578		3478
2579	local $/;	3479	local $/;
2580	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2581		3481
2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2583		3483
2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2590	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2591	};	3491	};
2592	warn $@ if $@;	3492	warn $@ if $@;
2593	}	3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2594	}	3524	}
2595		3525
2596	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2597	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2598	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2600	(async {	3544	(async {
2601	Event::one_event;	3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
2602	})->prio (Coro::PRIO_MAX);	3547	})->prio (Coro::PRIO_MAX);
2603	};	3548	};
2604		3549
2605	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
		3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
2606	db_init;	3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2607	load_extensions;	3568	load_extensions;
2608		3569
2609	$TICK_WATCHER->start;	3570	utime time, time, $RUNTIMEFILE;
2610	Event::loop;	3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2611	}	3580	}
2612		3581
2613	#############################################################################	3582	#############################################################################
2614	# initialisation and cleanup	3583	# initialisation and cleanup
2615		3584
2616	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2617	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2618	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2619	Event->signal (	3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2620	reentrant => 0,
2621	data => WF_AUTOCANCEL,
2622	signal => $signal,
2623	prio => 0,
2624	cb => sub {
2625	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2626	},
2627	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = EV::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3629
2628	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2629	}	3681	}
2630		3682
2631	sub emergency_save() {	3683	sub emergency_save() {
2632	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2633		3685
2634	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2635		3687
2636	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2637	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2638	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2639	# and maps saved/destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2640	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2641	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2642	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2643	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2644	$pl->save;	3702	$pl->save;
2645	}	3703	}
2646	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2647		3705
2648	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2649	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2650	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2651	$map->valid or next;	3709	$map->valid or next;
2652	$map->save;	3710	$map->save;
2653	}	3711	}
2654	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
2655		3713
2656	warn "begin emergency database checkpoint\n";	3714	warn "emergency_perl_save: begin database checkpoint\n";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3715	BDB::db_env_txn_checkpoint $DB_ENV;
2658	warn "end emergency database checkpoint\n";	3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2659	};	3721	};
2660		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2661	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2662	}	3729	}
2663		3730
2664	sub post_cleanup {	3731	sub post_cleanup {
2665	my ($make_core) = @_;	3732	my ($make_core) = @_;
2666		3733
2667	warn Carp::longmess "post_cleanup backtrace"	3734	warn Carp::longmess "post_cleanup backtrace"
2668	if $make_core;	3735	if $make_core;
		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
2669	}	3765	}
2670		3766
2671	sub do_reload_perl() {	3767	sub do_reload_perl() {
2672	# can/must only be called in main	3768	# can/must only be called in main
2673	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2674	warn "can only reload from main coroutine";	3770	warn "can only reload from main coroutine";
2675	return;	3771	return;
2676	}	3772	}
2677		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
2678	warn "reloading...";	3779	warn "reloading...";
2679		3780
2680	warn "entering sync_job";	3781	warn "entering sync_job";
2681		3782
2682	cf::sync_job {	3783	cf::sync_job {
2683	cf::write_runtime; # external watchdog should not bark	3784	cf::write_runtime_sync; # external watchdog should not bark
2684	cf::emergency_save;	3785	cf::emergency_save;
2685	cf::write_runtime; # external watchdog should not bark	3786	cf::write_runtime_sync; # external watchdog should not bark
2686		3787
2687	warn "syncing database to disk";	3788	warn "syncing database to disk";
2688	BDB::db_env_txn_checkpoint $DB_ENV;	3789	BDB::db_env_txn_checkpoint $DB_ENV;
2689		3790
2690	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2691		3792
2692	warn "cancelling all WF_AUTOCANCEL watchers";
2693	for (Event::all_watchers) {
2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2695	}
2696
2697	warn "flushing outstanding aio requests";	3793	warn "flushing outstanding aio requests";
2698	for (;;) {
2699	BDB::flush;
2700	IO::AIO::flush;
2701	Coro::cede;
2702	last unless IO::AIO::nreqs || BDB::nreqs;	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2703	warn "iterate...";	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2704	}
2705
2706	++$RELOAD;
2707
2708	warn "cancelling all extension coros";
2709	$_->cancel for values %EXT_CORO;
2710	%EXT_CORO = ();
2711
2712	warn "removing commands";
2713	%COMMAND = ();
2714
2715	warn "removing ext commands";
2716	%EXTCMD = ();
2717
2718	warn "unloading/nuking all extensions";
2719	for my $pkg (@EXTS) {
2720	warn "... unloading $pkg";
2721
2722	if (my $cb = $pkg->can ("unload")) {
2723	eval {
2724	$cb->($pkg);
2725	1
2726	} or warn "$pkg unloaded, but with errors: $@";
2727	}	3796	}
2728		3797
2729	warn "... nuking $pkg";	3798	warn "cancelling all extension coros";
2730	Symbol::delete_package $pkg;	3799	$_->cancel for values %EXT_CORO;
2731	}	3800	%EXT_CORO = ();
2732		3801
2733	warn "unloading all perl modules loaded from $LIBDIR";	3802	warn "removing commands";
2734	while (my ($k, $v) = each %INC) {	3803	%COMMAND = ();
2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2736		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2737	warn "... unloading $k";	3811	warn "... unloading $pkg";
2738	delete $INC{$k};
2739		3812
2740	$k =~ s/\.pm$//;
2741	$k =~ s/\//::/g;
2742
2743	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2744	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2745	}	3822	}
2746		3823
2747	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2748	}	3839	}
2749		3840
2750	warn "getting rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2751	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2753		3844
2754	warn "unloading cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2755	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
2756	delete $INC{"cf/pod.pm"};	3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2757		3848
2758	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2759	# and global variables created in xs	3850	# and global variables created in xs
2760	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2761		3852
2762	warn "unload completed, starting to reload now";	3853	warn "unload completed, starting to reload now";
2763		3854
2764	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2765	require cf;	3856	require cf;
2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2767		3858
2768	warn "loading config and database again";	3859	warn "loading config and database again";
2769	cf::cfg_load;	3860	cf::reload_config;
2770		3861
2771	warn "loading extensions";	3862	warn "loading extensions";
2772	cf::load_extensions;	3863	cf::load_extensions;
2773		3864
		3865	if ($REATTACH_ON_RELOAD) {
2774	warn "reattaching attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2775	_global_reattach; # objects, sockets	3867	_global_reattach; # objects, sockets
2776	warn "reattaching attachments to maps";	3868	warn "reattaching attachments to maps";
2777	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
2778	warn "reattaching attachments to players";	3870	warn "reattaching attachments to players";
2779	reattach $_ for values %PLAYER;	3871	reattach $_ for values %PLAYER;
		3872	}
2780		3873
		3874	warn "running post_init jobs";
		3875	(pop @POST_INIT)->(1) while @POST_INIT;
		3876
2781	warn "leaving sync_job";	3877	warn "leaving sync_job";
2782		3878
2783	1	3879	1
2784	} or do {	3880	} or do {
2785	warn $@;	3881	warn $@;
2786	warn "error while reloading, exiting.";	3882	cf::cleanup "error while reloading, exiting.";
2787	exit 1;
2788	};	3883	};
2789		3884
2790	warn "reloaded";	3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = EV::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
2791	};	3891	};
2792		3892
2793	our $RELOAD_WATCHER; # used only during reload	3893	our $RELOAD_WATCHER; # used only during reload
2794		3894
2795	sub reload_perl() {	3895	sub reload_perl() {
2796	# doing reload synchronously and two reloads happen back-to-back,	3896	# doing reload synchronously and two reloads happen back-to-back,
2797	# coro crashes during coro_state_free->destroy here.	3897	# coro crashes during coro_state_free->destroy here.
2798		3898
2799	$RELOAD_WATCHER ||= Event->timer (	3899	$RELOAD_WATCHER ||= cf::async {
2800	reentrant => 0,	3900	Coro::AIO::aio_wait cache_extensions;
2801	after => 0,	3901
2802	data => WF_AUTOCANCEL,	3902	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2803	cb => sub {
2804	do_reload_perl;	3903	do_reload_perl;
2805	undef $RELOAD_WATCHER;	3904	undef $RELOAD_WATCHER;
2806	},	3905	};
2807	);	3906	};
2808	}	3907	}
2809		3908
2810	register_command "reload" => sub {	3909	register_command "reload" => sub {
2811	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2812		3911
2813	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2814	$who->message ("reloading server.");	3913	$who->message ("reloading server.");
		3914	async {
		3915	$Coro::current->{desc} = "perl_reload";
2815	async { reload_perl };	3916	reload_perl;
		3917	};
2816	}	3918	}
2817	};	3919	};
2818		3920
2819	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2820		3922
…		…
2822		3924
2823	our @WAIT_FOR_TICK;	3925	our @WAIT_FOR_TICK;
2824	our @WAIT_FOR_TICK_BEGIN;	3926	our @WAIT_FOR_TICK_BEGIN;
2825		3927
2826	sub wait_for_tick {	3928	sub wait_for_tick {
2827	return unless $TICK_WATCHER->is_active;
2828	return if $Coro::current == $Coro::main;	3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2829		3930
2830	my $signal = new Coro::Signal;	3931	my $signal = new Coro::Signal;
2831	push @WAIT_FOR_TICK, $signal;	3932	push @WAIT_FOR_TICK, $signal;
2832	$signal->wait;	3933	$signal->wait;
2833	}	3934	}
2834		3935
2835	sub wait_for_tick_begin {	3936	sub wait_for_tick_begin {
2836	return unless $TICK_WATCHER->is_active;
2837	return if $Coro::current == $Coro::main;	3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2838		3938
2839	my $signal = new Coro::Signal;	3939	my $signal = new Coro::Signal;
2840	push @WAIT_FOR_TICK_BEGIN, $signal;	3940	push @WAIT_FOR_TICK_BEGIN, $signal;
2841	$signal->wait;	3941	$signal->wait;
2842	}	3942	}
2843		3943
2844	my $min = 1e6;#d#	3944	sub tick {
2845	my $avg = 10;
2846	$TICK_WATCHER = Event->timer (
2847	reentrant => 0,
2848	parked => 1,
2849	prio => 0,
2850	at => $NEXT_TICK || $TICK,
2851	data => WF_AUTOCANCEL,
2852	cb => sub {
2853	if ($Coro::current != $Coro::main) {	3945	if ($Coro::current != $Coro::main) {
2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2855	unless ++$bug_warning > 10;	3947	unless ++$bug_warning > 10;
2856	return;	3948	return;
2857	}	3949	}
2858		3950
2859	$NOW = $tick_start = Event::time;
2860
2861	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2862		3952
2863	0 && sync_job {#d#	3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2864	for(1..10) {
2865	my $t = Event::time;
2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2867	or die;
2868		3954
2869	$map->width (50);	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2870	$map->height (50);	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2871	$map->alloc;	3957	Coro::async_pool {
2872	$map->_load_objects ("/tmp/x.map", 1);	3958	$Coro::current->{desc} = "runtime saver";
2873	my $t = Event::time - $t;	3959	write_runtime_sync
2874		3960	or warn "ERROR: unable to write runtime file: $!";
2875	#next unless $t < 0.0013;#d#
2876	if ($t < $min) {
2877	$min = $t;
2878	}
2879	$avg = $avg * 0.99 + $t * 0.01;
2880	}
2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2882	exit 0;
2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2884	};	3961	};
		3962	}
2885		3963
2886	$RUNTIME += $TICK;
2887	$NEXT_TICK += $TICK;
2888
2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
2891	Coro::async_pool {
2892	write_runtime
2893	or warn "ERROR: unable to write runtime file: $!";
2894	};
2895	}
2896
2897	# my $AFTER = Event::time;
2898	# warn $AFTER - $NOW;#d#
2899
2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2901	$sig->send;	3965	$sig->send;
2902	}	3966	}
2903	while (my $sig = shift @WAIT_FOR_TICK) {	3967	while (my $sig = shift @WAIT_FOR_TICK) {
2904	$sig->send;	3968	$sig->send;
2905	}	3969	}
2906		3970
2907	$NOW = Event::time;	3971	$LOAD = ($NOW - $TICK_START) / $TICK;
2908
2909	# if we are delayed by four ticks or more, skip them all
2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2911
2912	$TICK_WATCHER->at ($NEXT_TICK);
2913	$TICK_WATCHER->start;
2914
2915	$LOAD = ($NOW - $tick_start) / $TICK;
2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2917		3973
2918	_post_tick;	3974	if (0) {
2919		3975	if ($NEXT_TICK) {
2920		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
2921	},	3980	}
2922	);	3981	}
2923		3982
2924	{	3983	{
2925	BDB::max_poll_time $TICK * 0.1;	3984	# configure BDB
2926	$BDB_POLL_WATCHER = Event->io (	3985
2927	reentrant => 0,
2928	fd => BDB::poll_fileno,
2929	poll => 'r',
2930	prio => 0,
2931	data => WF_AUTOCANCEL,
2932	cb => \&BDB::poll_cb,
2933	);
2934	BDB::min_parallel 8;	3986	BDB::min_parallel 16;
2935		3987	BDB::max_poll_reqs $TICK * 0.1;
2936	BDB::set_sync_prepare {	3988	$AnyEvent::BDB::WATCHER->priority (1);
2937	my $status;
2938	my $current = $Coro::current;
2939	(
2940	sub {
2941	$status = $!;
2942	$current->ready; undef $current;
2943	},
2944	sub {
2945	Coro::schedule while defined $current;
2946	$! = $status;
2947	},
2948	)
2949	};
2950		3989
2951	unless ($DB_ENV) {	3990	unless ($DB_ENV) {
2952	$DB_ENV = BDB::db_env_create;	3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2953		3997
2954	cf::sync_job {	3998	cf::sync_job {
2955	eval {	3999	eval {
2956	BDB::db_env_open	4000	BDB::db_env_open
2957	$DB_ENV,	4001	$DB_ENV,
…		…
2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2961	0666;	4005	0666;
2962		4006
2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2964
2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2966	$DB_ENV->set_lk_detect;
2967	};	4008	};
2968		4009
2969	cf::cleanup "db_env_open(db): $@" if $@;	4010	cf::cleanup "db_env_open(db): $@" if $@;
2970	};	4011	};
2971	}	4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
2972	}	4023	}
2973		4024
2974	{	4025	{
		4026	# configure IO::AIO
		4027
2975	IO::AIO::min_parallel 8;	4028	IO::AIO::min_parallel 8;
2976
2977	undef $Coro::AIO::WATCHER;
2978	IO::AIO::max_poll_time $TICK * 0.1;	4029	IO::AIO::max_poll_time $TICK * 0.1;
2979	$AIO_POLL_WATCHER = Event->io (	4030	undef $AnyEvent::AIO::WATCHER;
2980	reentrant => 0,
2981	data => WF_AUTOCANCEL,
2982	fd => IO::AIO::poll_fileno,
2983	poll => 'r',
2984	prio => 6,
2985	cb => \&IO::AIO::poll_cb,
2986	);
2987	}	4031	}
2988		4032
2989	my $_log_backtrace;	4033	my $_log_backtrace;
2990		4034
2991	sub _log_backtrace {	4035	sub _log_backtrace {
…		…
2994	$msg =~ s/\n//;	4038	$msg =~ s/\n//;
2995		4039
2996	# limit the # of concurrent backtraces	4040	# limit the # of concurrent backtraces
2997	if ($_log_backtrace < 2) {	4041	if ($_log_backtrace < 2) {
2998	++$_log_backtrace;	4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
2999	async {	4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
3000	my @bt = fork_call {	4047	my @bt = fork_call {
3001	@addr = map { sprintf "%x", $_ } @addr;	4048	@addr = map { sprintf "%x", $_ } @addr;
3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3004	or die "addr2line: $!";	4051	or die "addr2line: $!";
…		…
3012	}	4059	}
3013		4060
3014	@funcs	4061	@funcs
3015	};	4062	};
3016		4063
3017	LOG llevInfo, "[ABT] $msg\n";	4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3018	LOG llevInfo, "[ABT] $_\n" for @bt;	4066	LOG llevInfo, "[ABT] $_\n" for @bt;
3019	--$_log_backtrace;	4067	--$_log_backtrace;
3020	};	4068	};
3021	} else {	4069	} else {
3022	LOG llevInfo, "[ABT] $msg\n";	4070	LOG llevInfo, "[ABT] $msg\n";
3023	LOG llevInfo, "[ABT] [suppressed]\n";	4071	LOG llevInfo, "[ABT] [suppressed]\n";
3024	}	4072	}
3025	}	4073	}
3026		4074
3027	# load additional modules	4075	# load additional modules
3028	use cf::pod;	4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
3029		4078
3030	END { cf::emergency_save }	4079	END { cf::emergency_save }
3031		4080
3032	1	4081	1
3033		4082

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