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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.498 by elmex, Tue Jan 5 16:16:37 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 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
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		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 $REALLY_UNLOOP; # never set to true, please :)
		147
95	binmode STDOUT;	148	binmode STDOUT;
96	binmode STDERR;	149	binmode STDERR;
97		150
98	# read virtual server time, if available	151	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
103	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
104		159
105	mkdir $_	160	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		162
108	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
109		164
110	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::"} };
111		177
112	#############################################################################	178	#############################################################################
113		179
114	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
115		181
…		…
139		205
140	=item $cf::TICK	206	=item $cf::TICK
141		207
142	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
143		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
144	=item %cf::CFG	220	=item %cf::CFG
145		221
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	223	from wherever your confdir points to.
148		224
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		226
151	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
152	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
153	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.
154		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
155	=back	243	=back
156		244
157	=cut	245	=cut
158		246
159	BEGIN {	247	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	248	my $msg = join "", @_;
162		249
163	$msg .= "\n"	250	$msg .= "\n"
164	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
165		252
166	$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;
167		254
168	utf8::encode $msg;
169	LOG llevError, $msg;	255	LOG llevError, $msg;
170	};	256	};
171	}	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	};
172		271
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		279
180	# 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
181	# within the Safe compartment.	281	# within the Safe compartment.
182	for my $pkg (qw(	282	for my $pkg (qw(
183	cf::global cf::attachable	283	cf::global cf::attachable
184	cf::object cf::object::player	284	cf::object cf::object::player
185	cf::client cf::player	285	cf::client cf::player
186	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
187	cf::map cf::party cf::region	288	cf::party cf::region
188	)) {	289	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	291	}
192		292
193	$Event::DIED = sub {	293	$EV::DIED = sub {
194	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
195	};	295	};
		296
		297	#############################################################################
196		298
197	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
198		300
199	=over 4	301	=over 4
200		302
…		…
219	$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;
220	$d	322	$d
221	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
222	}	324	}
223		325
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
227		327
228	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
229		329
230	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
231		331
232	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
233		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
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	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
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
249		373
250	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.
251		375
252	=cut	376	=cut
253		377
254	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
255		379
256	sub lock_wait($) {	380	sub lock_wait($) {
257	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	382	}
265		383
266	sub lock_acquire($) {	384	sub lock_acquire($) {
267	my ($key) = @_;	385	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	386	}
279		387
280	sub lock_active($) {	388	sub lock_active($) {
281	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	390	}
285		391
286	sub freeze_mainloop {	392	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
288		394
289	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
290	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
291	};	456	}
292	$TICK_WATCHER->stop;	457	};
293	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
294	}	471	}
295		472
296	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
297		474
298	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		480
304	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
305		482
306	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
307		484
308	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
311		489
312	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
315	fast or be very important.	493	fast or be very important.
…		…
318		496
319	sub sync_job(&) {	497	sub sync_job(&) {
320	my ($job) = @_;	498	my ($job) = @_;
321		499
322	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
323	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
325		505
326	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	507
328	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
329		509
330	my $busy = 1;	510	my $busy = 1;
331	my @res;	511	my @res;
332		512
333	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	515	@res = eval { $job->() };
335	warn $@ if $@;	516	warn $@ if $@;
336	undef $busy;	517	undef $busy;
337	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
338		519
339	while ($busy) {	520	while ($busy) {
340	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
341	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
342		531
343	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
344	} else {	533	} else {
345	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
346		535
…		…
366	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
367		556
368	$coro	557	$coro
369	}	558	}
370		559
371	sub write_runtime {	560	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		561
374	my $runtime = "$LOCALDIR/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
375		566
376	warn "starting to write runtime...\n";#d#	567	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
378	or return;
379		568
380	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		571
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
385	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
386		575
387	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
388	aio_fsync $fh	577	reset_signals;
389	and return;	578	&$cb
		579	}, @args;
390		580
391	close $fh	581	wantarray ? @res : $res[-1]
392	or return;	582	}
393		583
394	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
395	and return;
396		585
397	warn "... done writing runtime.\n";#d#	586	=cut
398		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
399	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
400	}	736	}
401		737
402	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
403		739
404	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
416		752
417	#############################################################################	753	#############################################################################
418		754
419	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
420		756
421	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
422	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
423	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
424		760
425	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
426	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
427	crossfire+).	763	Deliantra).
428		764
429	=over 4	765	=over 4
430		766
431	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
432		768
…		…
476	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
477		813
478	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
479	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
480		816
481	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
482	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
483		819
484	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
485		821
486	=over 4	822	=over 4
…		…
595	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
596		932
597	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
601		937
602	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	939	my $pkg = shift @arg;
604		940
605	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
635	}	971	}
636		972
637	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
638	} else {	974	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	976	}
641		977
642	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
643	}	979	}
644		980
…		…
646	if (ref $_[0]) {	982	if (ref $_[0]) {
647	_object_attach @_;	983	_object_attach @_;
648	} else {	984	} else {
649	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
650	}	986	}
		987	_recalc_want;
651	};	988	};
652		989
653	# all those should be optimised	990	# all those should be optimised
654	sub cf::attachable::detach {	991	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
659	reattach ($obj);	996	reattach ($obj);
660	} else {	997	} else {
661	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
662	}	999	}
		1000	_recalc_want;
663	};	1001	};
664		1002
665	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
667		1005
…		…
682	";	1020	";
683	die if $@;	1021	die if $@;
684	}	1022	}
685		1023
686	our $override;	1024	our $override;
687	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
688		1026
689	sub override {	1027	sub override {
690	$override = 1;	1028	$override = 1;
691	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
692	}	1030	}
693		1031
694	sub do_invoke {	1032	sub do_invoke {
695	my $event = shift;	1033	my $event = shift;
696	my $callbacks = shift;	1034	my $callbacks = shift;
697		1035
698	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
699		1037
700	local $override;	1038	local $override;
701		1039
702	for (@$callbacks) {	1040	for (@$callbacks) {
703	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
712	}	1050	}
713		1051
714	0	1052	0
715	}	1053	}
716		1054
717	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
718		1056
719	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
720		1058
721	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
722		1060
723	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
724	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
725	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
726		1064
727	=back	1065	=back
728		1066
729	=cut	1067	=cut
730		1068
731	#############################################################################	1069	#############################################################################
732	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
733		1113
734	sub reattach {	1114	sub reattach {
735	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
736	my ($obj) = @_;	1116	my ($obj) = @_;
737		1117
		1118	# no longer needed after getting rid of delete_package?
738	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
739		1120
740	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
741		1122
742	@$registry = ();	1123	@$registry = ();
743		1124
…		…
758	cf::attachable->attach (	1139	cf::attachable->attach (
759	prio => -1000000,	1140	prio => -1000000,
760	on_instantiate => sub {	1141	on_instantiate => sub {
761	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
762		1143
763	$data = from_json $data;	1144	$data = decode_json $data;
764		1145
765	for (@$data) {	1146	for (@$data) {
766	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
767		1148
768	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
784	sub object_freezer_save {	1165	sub object_freezer_save {
785	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
786		1167
787	sync_job {	1168	sync_job {
788	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
789	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
790	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
791		1173
792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
793	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
795	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	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;
		1179	aio_fsync $fh;
		1180	}
796	close $fh;	1181	aio_close $fh;
797		1182
798	if (@$objs) {	1183	if (@$objs) {
799	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
800	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
801	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
802	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
803	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	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;
		1190	aio_fsync $fh;
		1191	}
804	close $fh;	1192	aio_close $fh;
805	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
806	}	1194	}
807	} else {	1195	} else {
808	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
809	}	1197	}
810		1198
811	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
812	} else {	1203	} else {
813	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
814	}	1205	}
815	} else {	1206	} else {
816	aio_unlink $filename;	1207	aio_unlink $filename;
817	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
818	}	1209	}
819	}	1210	};
820	}	1211	}
821		1212
822	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
823	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
824		1215
…		…
836	or return;	1227	or return;
837		1228
838	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
839	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
840	or return;	1231	or return;
		1232
841	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
842	}	1235	}
843		1236
		1237	utf8::decode (my $decname = $filename);
844	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
845	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
846	return ($data, $av);	1241	($data, $av)
847	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
848		1249
849	#############################################################################	1250	#############################################################################
850	# command handling &c	1251	# command handling &c
851		1252
852	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1267	}
867		1268
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1270
870	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
871		1276
872	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
873	called.	1278	called.
874		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
875	=cut	1291	=cut
876		1292
877	sub register_extcmd {	1293	sub register_extcmd {
878	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
879		1295
880	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
881	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
882		1306
883	cf::player->attach (	1307	cf::player->attach (
884	on_command => sub {	1308	on_command => sub {
885	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
886		1310
…		…
894	cf::override;	1318	cf::override;
895	},	1319	},
896	on_extcmd => sub {	1320	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
898		1322
899	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1324
901	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
903	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
904	$pl->ext_reply ($msg->{msgid}, %reply);
905	}
906	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
907	} else {	1340	} else {
908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
909	}	1342	}
910		1343
911	cf::override;	1344	cf::override;
912	},	1345	},
913	);	1346	);
914		1347
		1348	# "readahead" all extensions
915	sub load_extension {	1349	sub cache_extensions {
916	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
917		1351
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
919	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
920	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}	1355	}
943	die $@;
944	}	1356	};
945		1357
946	push @EXTS, $pkg;	1358	$grp
947	}	1359	}
948		1360
949	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
950	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1366	next unless -r $path;
952	eval {	1367
953	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
954	1	1424	}
955	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
956	}	1430	};
957	}	1431	}
958		1432
959	#############################################################################	1433	#############################################################################
960		1434
		1435	=back
		1436
961	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
962		1438
963	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
964		1440
965	=cut	1441	=cut
966		1442
967	package cf::player;	1443	package cf::player;
968		1444
969	use Coro::AIO;	1445	use Coro::AIO;
970		1446
971	=head3 cf::player	1447	=head3 cf::player
972		1448
973	=over 4	1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
974		1464
975	=item cf::player::find $login	1465	=item cf::player::find $login
976		1466
977	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
978		1468
…		…
997		1487
998	sub exists($) {	1488	sub exists($) {
999	my ($login) = @_;	1489	my ($login) = @_;
1000		1490
1001	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
1002	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1003	}	1493	}
1004		1494
1005	sub find($) {	1495	sub find($) {
1006	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1007	my $login = $_[0];	1497	my $login = $_[0];
…		…
1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1017	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1018		1508
1019	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1020	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1021	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1022	}	1518	}
1023	}	1519	}
1024	}	1520	}
1025		1521
…		…
1034	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1035		1531
1036	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1037	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1038		1534
		1535	cf::get_slot 0.01;
		1536
1039	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1040	Coro::cede;	1538	cf::cede_to_tick;
1041	}	1539	}
1042		1540
1043	sub new($) {	1541	sub new($) {
1044	my ($login) = @_;	1542	my ($login) = @_;
1045		1543
…		…
1051	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1052		1550
1053	$self	1551	$self
1054	}	1552	}
1055		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1056	=item $pl->quit_character	1564	=item $pl->quit_character
1057		1565
1058	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1059	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1060		1568
…		…
1064	my ($pl) = @_;	1572	my ($pl) = @_;
1065		1573
1066	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1067		1575
1068	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1069	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1070		1578
1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1072	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1074	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1075		1585
1076	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1077	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1113	or return [];	1623	or return [];
1114		1624
1115	my @logins;	1625	my @logins;
1116		1626
1117	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1119	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1120	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1121		1637
1122	utf8::decode $login;	1638	utf8::decode $login;
1123	push @logins, $login;	1639	push @logins, $login;
1124	}	1640	}
1125		1641
…		…
1152	}	1668	}
1153		1669
1154	\@paths	1670	\@paths
1155	}	1671	}
1156		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1157	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1158		1678
1159	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1160		1680
1161	=cut	1681	=cut
1162		1682
1163	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1164	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1165		1685
1166	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1167
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1687	}
1170		1688
1171	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1172		1690
1173	Sends an ext event to the client.	1691	Sends an ext event to the client.
1174		1692
1175	=cut	1693	=cut
1176		1694
1177	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1178	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1179		1697
1180	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1181	}	1699	}
1182		1700
1183	=head3 cf::region	1701	=head3 cf::region
1184		1702
1185	=over 4	1703	=over 4
…		…
1188		1706
1189	package cf::region;	1707	package cf::region;
1190		1708
1191	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1192		1710
1193	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1194		1712
1195	=cut	1713	=cut
1196		1714
1197	sub find_by_path($) {	1715	sub find_by_path($) {
1198	my ($path) = @_;	1716	my ($path) = @_;
1199		1717
1200	my ($match, $specificity);	1718	my ($match, $specificity);
1201		1719
1202	for my $region (list) {	1720	for my $region (list) {
1203	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1204	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1205	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1206	}	1724	}
1207	}	1725	}
1208		1726
…		…
1229	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1230	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1231		1749
1232	sub generate_random_map {	1750	sub generate_random_map {
1233	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1234	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1235	$self->_create_random_map (	1756	$self->_create_random_map (
1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1272	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1273		1794
1274	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1275	local $self->{path};	1796	local $self->{path};
1276	local $self->{load_path};	1797	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1798
1280	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1281	}	1800	}
1282		1801
1283	sub normalise {	1802	sub normalise {
…		…
1330	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1331	return $self;	1850	return $self;
1332	}	1851	}
1333	}	1852	}
1334		1853
1335	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1336	()	1855	()
1337	}	1856	}
1338		1857
1339	sub init {	1858	sub init {
1340	my ($self) = @_;	1859	my ($self) = @_;
…		…
1362		1881
1363	# the temporary/swap location	1882	# the temporary/swap location
1364	sub save_path {	1883	sub save_path {
1365	my ($self) = @_;	1884	my ($self) = @_;
1366		1885
1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1368	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1369	}	1888	}
1370		1889
1371	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1372	sub uniq_path {	1891	sub uniq_path {
1373	my ($self) = @_;	1892	my ($self) = @_;
1374		1893
1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1376	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1377	}	1896	}
1378		1897
1379	# and all this just because we cannot iterate over	1898	sub decay_objects {
1380	# all maps in C++...
1381	sub change_all_map_light {
1382	my ($change) = @_;	1899	my ($self) = @_;
1383		1900
1384	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1385	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1386	}	1904	}
1387		1905
1388	sub unlink_save {	1906	sub unlink_save {
1389	my ($self) = @_;	1907	my ($self) = @_;
1390		1908
…		…
1395		1913
1396	sub load_header_from($) {	1914	sub load_header_from($) {
1397	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1398		1916
1399	utf8::encode $path;	1917	utf8::encode $path;
1400	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1401	# or return;
1402
1403	$self->_load_header ($path)
1404	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1405		1926
1406	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1407		1928
1408	1	1929	1
1409	}	1930	}
…		…
1448	$self->load_header_orig	1969	$self->load_header_orig
1449	or return;	1970	or return;
1450	$self->prepare_orig;	1971	$self->prepare_orig;
1451	}	1972	}
1452		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1453	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1978	unless $self->default_region;
1455		1979
1456	1	1980	1
1457	}	1981	}
…		…
1460	sub find {	1984	sub find {
1461	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1462		1986
1463	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1464		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1465	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1466		1991
1467	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1468	my $guard = cf::lock_acquire "map_find:$path";
1469	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1470	or return;	1994	or return;
1471		1995
1472	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1473		1997
1474	$map->load_header	1998	$map->load_header
1475	or return;	1999	or return;
1476		2000
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1480	$map->reset;	2006	$map->reset;
1481	undef $guard;
1482	return find $path;	2007	return find $path;
1483	}	2008	}
1484		2009
1485	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1486	}	2011	}
…		…
1495	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1496		2021
1497	my $path = $self->{path};	2022	my $path = $self->{path};
1498		2023
1499	{	2024	{
1500	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1501		2026
		2027	return unless $self->valid;
1502	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1503		2029
1504	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1505		2031
1506	$self->alloc;	2032	$self->alloc;
1507		2033
1508	$self->pre_load;	2034	$self->pre_load;
1509	Coro::cede;	2035	cf::cede_to_tick;
1510		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1511	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1512	or return;	2040	or return;
1513		2041
1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1515	if delete $self->{load_original};	2043	if delete $self->{load_original};
1516		2044
1517	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1518	utf8::encode $uniq;	2046	utf8::encode $uniq;
1519	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1520	$self->clear_unique_items;	2049	$self->clear_unique_items;
1521	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1522	}	2053	}
1523	}	2054	}
1524		2055
1525	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1526	# now do the right thing for maps	2059	# now do the right thing for maps
1527	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1528	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1529	unless $self->difficulty;	2062	unless $self->difficulty;
1530	Coro::cede;	2063	cf::cede_to_tick;
1531		2064
1532	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1533	$self->decay_objects;	2066	$self->decay_objects;
1534	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1535	$self->update_buttons;	2068	$self->update_buttons;
1536	Coro::cede;	2069	cf::cede_to_tick;
1537	$self->set_darkness_map;
1538	Coro::cede;
1539	$self->activate;	2070	$self->activate;
1540	}	2071	}
1541		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1542	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1543	}	2077	}
1544		2078
1545	$self->post_load;	2079	$self->post_load;
1546	}	2080	}
1547		2081
…		…
1549	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1550		2084
1551	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	2086	if $self->per_player;
1553		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1554	$self	2091	$self
1555	}	2092	}
1556		2093
1557	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	2095	sub load_neighbours {
1559	my ($map) = @_;	2096	my ($map) = @_;
1560		2097
1561	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1562		2099
1563	for (0 .. 3) {	2100	for (0 .. 3) {
1564	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1565	or next;	2102	or next;
1566	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1567	or next;	2104	or next;
1568	$neigh->load;	2105	$neigh->load;
1569		2106
		2107	push @neigh,
1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1572	}	2110	}
1573		2111
1574	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1575	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1576	or next;	2115	or next;
1577	$neigh->load;	2116	$neigh->load;
1578	}	2117	}
1579	}	2118	}
1580		2119
…		…
1585	}	2124	}
1586		2125
1587	sub do_load_sync {	2126	sub do_load_sync {
1588	my ($map) = @_;	2127	my ($map) = @_;
1589		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1590	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1591	}	2133	}
1592		2134
1593	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1594	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1595		2137
1596	sub find_async {	2138	sub find_async {
1597	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1598		2140
1599	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1600		2142
1601	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1603	}	2145	}
1604		2146
1605	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1606	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1607	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1608	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1609	my $map = find $path	2154	if (my $map = find $k) {
1610	or next;
1611	$map->load;	2155	$map->load if $v;
		2156	}
1612		2157
1613	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1614	}	2159	}
1615	}	2160	}
1616	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1617	};	2162	};
1618	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1621	}	2166	}
1622		2167
1623	sub save {	2168	sub save {
1624	my ($self) = @_;	2169	my ($self) = @_;
1625		2170
1626	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1627		2172
1628	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1629		2174
1630	return unless $self->dirty;	2175	return unless $self->dirty;
1631		2176
…		…
1637	return if $self->{deny_save};	2182	return if $self->{deny_save};
1638		2183
1639	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1640		2185
1641	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1642	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1643	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1644		2192
1645	if ($uniq) {	2193	if ($uniq) {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1648	} else {	2196	} else {
…		…
1654	my ($self) = @_;	2202	my ($self) = @_;
1655		2203
1656	# save first because save cedes	2204	# save first because save cedes
1657	$self->save;	2205	$self->save;
1658		2206
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2208
1661	return if $self->players;	2209	return if $self->players;
1662	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1663	return if $self->{deny_save};	2211	return if $self->{deny_save};
1664		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1665	$self->clear;	2217	$self->clear;
1666	$self->in_memory (cf::MAP_SWAPPED);
1667	}	2218	}
1668		2219
1669	sub reset_at {	2220	sub reset_at {
1670	my ($self) = @_;	2221	my ($self) = @_;
1671		2222
1672	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1675		2225
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1678		2228
…		…
1689	my ($self) = @_;	2239	my ($self) = @_;
1690		2240
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2242
1693	return if $self->players;	2243	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		2244
1696	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1697		2246
1698	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1699		2248
1700	# need to save uniques path	2249	# need to save uniques path
1701	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1705	if $uniq;	2254	if $uniq;
1706	}	2255	}
1707		2256
1708	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1709		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1710	$self->clear;	2261	$self->clear;
1711
1712	$_->clear_links_to ($self) for values %cf::MAP;
1713		2262
1714	$self->unlink_save;	2263	$self->unlink_save;
1715	$self->destroy;	2264	$self->destroy;
1716	}	2265	}
1717		2266
1718	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1719		2268
1720	sub nuke {	2269	sub nuke {
1721	my ($self) = @_;	2270	my ($self) = @_;
1722		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1723	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1724		2276
1725	$self->unlink_save;	2277	$self->unlink_save;
1726		2278
1727	bless $self, "cf::map";	2279	bless $self, "cf::map";
1728	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1729	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1730	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1732		2284
1733	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1734		2287
1735	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1736	}	2325	}
1737		2326
1738	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1739		2328
1740	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2330	instantiated unique items. May block.
1742		2331
1743	=cut	2332	=cut
1744		2333
1745	sub unique_maps() {	2334	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2335	[
1747	or return;	2336	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2337	utf8::decode $_;
1753	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1754	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1755		2340	? ()
1756	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2343	]
1758
1759	\@paths
1760	}	2344	}
1761		2345
1762	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
		2367	s/\.map$// or next;
		2368	utf8::decode $_;
		2369	push @maps, "$dir/$_";
		2370	}
		2371
		2372	push @dirs, map "$dir/$_", @$dirs;
		2373	}
		2374
		2375	\@maps
		2376	}
1763		2377
1764	=back	2378	=back
1765		2379
1766	=head3 cf::object	2380	=head3 cf::object
1767		2381
…		…
1771		2385
1772	=over 4	2386	=over 4
1773		2387
1774	=item $ob->inv_recursive	2388	=item $ob->inv_recursive
1775		2389
1776	Returns the inventory of the object _and_ their inventories, recursively.	2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
1777		2392
1778	=cut	2393	=cut
1779		2394
1780	sub inv_recursive_;	2395	sub inv_recursive_;
1781	sub inv_recursive_ {	2396	sub inv_recursive_ {
…		…
1784		2399
1785	sub inv_recursive {	2400	sub inv_recursive {
1786	inv_recursive_ inv $_[0]	2401	inv_recursive_ inv $_[0]
1787	}	2402	}
1788		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
		2430	}
		2431
1789	package cf;	2432	package cf;
1790		2433
1791	=back	2434	=back
1792		2435
1793	=head3 cf::object::player	2436	=head3 cf::object::player
…		…
1799	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1800	can be C<undef>. Does the right thing when the player is currently in a	2443	can be C<undef>. Does the right thing when the player is currently in a
1801	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1802		2445
1803	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1804		2461
1805	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1806	# with dialog boxes.	2463	# with dialog boxes.
1807	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1808	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1810		2467
1811	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1812		2469
1813	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1815	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1816	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1818	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1819	}	2495	}
1820		2496
1821	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1822		2498
1823	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1836		2512
1837	=item $player_object->enter_link	2513	=item $player_object->enter_link
1838		2514
1839	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1840		2516
1841	The player should be reasonably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time (e.g.
1842	I<MUST> call C<leave_link> as soon as possible, though.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
1843		2521
1844	Will never block.	2522	Will never block.
1845		2523
1846	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1847		2525
…		…
1870	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1871		2549
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2551
1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1876		2554
1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1878	}	2556	}
1879		2557
1880	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1882		2562
1883	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1884		2564
1885	unless ($map) {	2565	unless ($map) {
1886	# restore original map position	2566	# restore original map position
…		…
1897	($x, $y) = (-1, -1)	2577	($x, $y) = (-1, -1)
1898	unless (defined $x) && (defined $y);	2578	unless (defined $x) && (defined $y);
1899		2579
1900	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1901	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1902	if $x <=0 && $y <= 0;	2582	if $x <= 0 && $y <= 0;
1903		2583
1904	$map->load;	2584	$map->load;
1905	$map->load_diag;	2585	$map->load_neighbours;
1906		2586
1907	return unless $self->contr->active;	2587	return unless $self->contr->active;
1908	$self->activate_recursive;
1909		2588
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2590	$self->enter_map ($map, $x, $y);
1912	}
1913		2591
1914	cf::player->attach (	2592	# only activate afterwards, to support waiting in hooks
1915	on_logout => sub {	2593	$self->activate_recursive;
1916	my ($pl) = @_;	2594	}
1917		2595
1918	# abort map switching before logout	2596	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1919	if ($pl->ob->{_link_pos}) {
1920	cf::sync_job {
1921	$pl->ob->leave_link
1922	};
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927		2597
1928	# try to abort aborted map switching on player login :)	2598	Moves the player to the given map-path and coordinates by first freezing
1929	# should happen only on crashes	2599	her, loading and preparing them map, calling the provided $check callback
1930	if ($pl->ob->{_link_pos}) {	2600	that has to return the map if sucecssful, and then unfreezes the player on
1931	$pl->ob->enter_link;	2601	the new (success) or old (failed) map position. In either case, $done will
1932	(async {	2602	be called at the end of this process.
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945		2603
1946	=item $player_object->goto ($path, $x, $y)	2604	Note that $check will be called with a potentially non-loaded map, so if
		2605	it needs a loaded map it has to call C<< ->load >>.
1947		2606
1948	=cut	2607	=cut
		2608
		2609	our $GOTOGEN;
1949		2610
1950	sub cf::object::player::goto {	2611	sub cf::object::player::goto {
1951	my ($self, $path, $x, $y) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
		2613
		2614	# do generation counting so two concurrent goto's will be executed in-order
		2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1952		2616
1953	$self->enter_link;	2617	$self->enter_link;
1954		2618
1955	(async {	2619	(async {
		2620	$Coro::current->{desc} = "player::goto $path $x $y";
		2621
		2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
1956	my $map = eval {	2641	my $map = eval {
1957	my $map = cf::map::find $path;	2642	my $map = defined $path ? cf::map::find $path : undef;
		2643
		2644	if ($map) {
1958	$map = $map->customise_for ($self) if $map;	2645	$map = $map->customise_for ($self);
		2646	$map = $check->($map) if $check && $map;
		2647	} else {
		2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	}
		2650
1959	$map	2651	$map
		2652	};
		2653
		2654	if ($@) {
		2655	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	LOG llevError | logBacktrace, Carp::longmess $@;
1960	} or	2657	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1962		2658
		2659	if ($gen == $self->{_goto_generation}) {
		2660	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
		2662	}
		2663
		2664	$done->() if $done;
1964	})->prio (1);	2665	})->prio (1);
1965	}	2666	}
1966		2667
1967	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
1968		2669
…		…
1988	}	2689	}
1989		2690
1990	sub prepare_random_map {	2691	sub prepare_random_map {
1991	my ($exit) = @_;	2692	my ($exit) = @_;
1992		2693
1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1994
1995	# all this does is basically replace the /! path by	2694	# all this does is basically replace the /! path by
1996	# a new random map path (?random/...) with a seed	2695	# a new random map path (?random/...) with a seed
1997	# that depends on the exit object	2696	# that depends on the exit object
1998		2697
1999	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
…		…
2001	if ($exit->map) {	2700	if ($exit->map) {
2002	$rmp->{region} = $exit->region->name;	2701	$rmp->{region} = $exit->region->name;
2003	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
2004	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
2005	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
2006	}	2707	}
2007		2708
2008	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
2009		2710
2010	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2011	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
2012	my $meta = "$RANDOMDIR/$md5.meta";	2713	my $meta = "$RANDOMDIR/$md5.meta";
2013		2714
2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2015	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
2016	undef $fh;	2717	undef $fh;
2017	aio_rename "$meta~", $meta;	2718	aio_rename "$meta~", $meta;
2018		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
2019	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
2020	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
2021	}	2726	}
2022	}	2727	}
2023		2728
2024	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
2025	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
2026		2731
2027	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
2028		2733
2029	if ($exit->slaying eq "/!") {
2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
2031	# the problem is that $exit might not survive long enough
2032	# so it needs to be done right now, right here
2033	cf::sync_job { prepare_random_map $exit };
2034	}
2035
2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2037	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;
2039
2040	$self->enter_link;	2734	$self->enter_link;
2041		2735
2042	(async {	2736	(async {
2043	$self->deactivate_recursive; # just to be sure	2737	$Coro::current->{desc} = "enter_exit";
		2738
2044	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
		2746	prepare_random_map $exit
		2747	if $exit->slaying eq "/!";
		2748	}
		2749
		2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
		2753
2045	$self->goto ($slaying, $hp, $sp);	2754	$self->goto ($map, $x, $y);
2046		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
2047	1;	2760	1
2048	}) {	2761	}) {
2049	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
2050	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
2051	. "Please report this to the dungeon master!",	2764	. "Please report this to the dungeon master!",
2052	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
2053		2766
2054	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
…		…
2073		2786
2074	utf8::encode $text;	2787	utf8::encode $text;
2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2076	}	2789	}
2077		2790
		2791	=item $client->send_big_packet ($pkt)
		2792
		2793	Like C<send_packet>, but tries to compress large packets, and fragments
		2794	them as required.
		2795
		2796	=cut
		2797
		2798	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2799
		2800	sub cf::client::send_big_packet {
		2801	my ($self, $pkt) = @_;
		2802
		2803	# try lzf for large packets
		2804	$pkt = "lzf " . Compress::LZF::compress $pkt
		2805	if 1024 <= length $pkt and $self->{can_lzf};
		2806
		2807	# split very large packets
		2808	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2809	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2810	$pkt = "frag";
		2811	}
		2812
		2813	$self->send_packet ($pkt);
		2814	}
		2815
		2816	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2817
		2818	Send a drawinfo or msg packet to the client, formatting the msg for the
		2819	client if neccessary. C<$type> should be a string identifying the type of
		2820	the message, with C<log> being the default. If C<$color> is negative, suppress
		2821	the message unless the client supports the msg packet.
		2822
		2823	=cut
		2824
		2825	# non-persistent channels (usually the info channel)
		2826	our %CHANNEL = (
		2827	"c/motd" => {
		2828	id => "infobox",
		2829	title => "MOTD",
		2830	reply => undef,
		2831	tooltip => "The message of the day",
		2832	},
		2833	"c/identify" => {
		2834	id => "infobox",
		2835	title => "Identify",
		2836	reply => undef,
		2837	tooltip => "Items recently identified",
		2838	},
		2839	"c/examine" => {
		2840	id => "infobox",
		2841	title => "Examine",
		2842	reply => undef,
		2843	tooltip => "Signs and other items you examined",
		2844	},
		2845	"c/shopinfo" => {
		2846	id => "infobox",
		2847	title => "Shop Info",
		2848	reply => undef,
		2849	tooltip => "What your bargaining skill tells you about the shop",
		2850	},
		2851	"c/book" => {
		2852	id => "infobox",
		2853	title => "Book",
		2854	reply => undef,
		2855	tooltip => "The contents of a note or book",
		2856	},
		2857	"c/lookat" => {
		2858	id => "infobox",
		2859	title => "Look",
		2860	reply => undef,
		2861	tooltip => "What you saw there",
		2862	},
		2863	"c/who" => {
		2864	id => "infobox",
		2865	title => "Players",
		2866	reply => undef,
		2867	tooltip => "Shows players who are currently online",
		2868	},
		2869	"c/body" => {
		2870	id => "infobox",
		2871	title => "Body Parts",
		2872	reply => undef,
		2873	tooltip => "Shows which body parts you posess and are available",
		2874	},
		2875	"c/statistics" => {
		2876	id => "infobox",
		2877	title => "Statistics",
		2878	reply => undef,
		2879	tooltip => "Shows your primary statistics",
		2880	},
		2881	"c/skills" => {
		2882	id => "infobox",
		2883	title => "Skills",
		2884	reply => undef,
		2885	tooltip => "Shows your experience per skill and item power",
		2886	},
		2887	"c/shopitems" => {
		2888	id => "infobox",
		2889	title => "Shop Items",
		2890	reply => undef,
		2891	tooltip => "Shows the items currently for sale in this shop",
		2892	},
		2893	"c/resistances" => {
		2894	id => "infobox",
		2895	title => "Resistances",
		2896	reply => undef,
		2897	tooltip => "Shows your resistances",
		2898	},
		2899	"c/pets" => {
		2900	id => "infobox",
		2901	title => "Pets",
		2902	reply => undef,
		2903	tooltip => "Shows information abotu your pets/a specific pet",
		2904	},
		2905	"c/perceiveself" => {
		2906	id => "infobox",
		2907	title => "Perceive Self",
		2908	reply => undef,
		2909	tooltip => "You gained detailed knowledge about yourself",
		2910	},
		2911	"c/uptime" => {
		2912	id => "infobox",
		2913	title => "Uptime",
		2914	reply => undef,
		2915	tooltip => "How long the server has been running since last restart",
		2916	},
		2917	"c/mapinfo" => {
		2918	id => "infobox",
		2919	title => "Map Info",
		2920	reply => undef,
		2921	tooltip => "Information related to the maps",
		2922	},
		2923	"c/party" => {
		2924	id => "party",
		2925	title => "Party",
		2926	reply => "gsay ",
		2927	tooltip => "Messages and chat related to your party",
		2928	},
		2929	"c/death" => {
		2930	id => "death",
		2931	title => "Death",
		2932	reply => undef,
		2933	tooltip => "Reason for and more info about your most recent death",
		2934	},
		2935	"c/say" => $SAY_CHANNEL,
		2936	"c/chat" => $CHAT_CHANNEL,
		2937	);
		2938
		2939	sub cf::client::send_msg {
		2940	my ($self, $channel, $msg, $color, @extra) = @_;
		2941
		2942	$msg = $self->pl->expand_cfpod ($msg)
		2943	unless $color & cf::NDI_VERBATIM;
		2944
		2945	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2946
		2947	# check predefined channels, for the benefit of C
		2948	if ($CHANNEL{$channel}) {
		2949	$channel = $CHANNEL{$channel};
		2950
		2951	$self->ext_msg (channel_info => $channel);
		2952	$channel = $channel->{id};
		2953
		2954	} elsif (ref $channel) {
		2955	# send meta info to client, if not yet sent
		2956	unless (exists $self->{channel}{$channel->{id}}) {
		2957	$self->{channel}{$channel->{id}} = $channel;
		2958	$self->ext_msg (channel_info => $channel);
		2959	}
		2960
		2961	$channel = $channel->{id};
		2962	}
		2963
		2964	return unless @extra || length $msg;
		2965
		2966	# default colour, mask it out
		2967	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2968	if $color & cf::NDI_DEF;
		2969
		2970	my $pkt = "msg "
		2971	. $self->{json_coder}->encode (
		2972	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2973	);
		2974
		2975	$self->send_big_packet ($pkt);
		2976	}
		2977
2078	=item $client->ext_event ($type, %msg)	2978	=item $client->ext_msg ($type, @msg)
2079		2979
2080	Sends an exti event to the client.	2980	Sends an ext event to the client.
2081		2981
2082	=cut	2982	=cut
2083		2983
2084	sub cf::client::ext_event($$%) {	2984	sub cf::client::ext_msg($$@) {
2085	my ($self, $type, %msg) = @_;	2985	my ($self, $type, @msg) = @_;
2086		2986
		2987	if ($self->extcmd == 2) {
		2988	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2989	} elsif ($self->extcmd == 1) { # TODO: remove
2087	$msg{msgtype} = "event_$type";	2990	push @msg, msgtype => "event_$type";
2088	$self->send_packet ("ext " . cf::to_json \%msg);	2991	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
		2994
		2995	=item $client->ext_reply ($msgid, @msg)
		2996
		2997	Sends an ext reply to the client.
		2998
		2999	=cut
		3000
		3001	sub cf::client::ext_reply($$@) {
		3002	my ($self, $id, @msg) = @_;
		3003
		3004	if ($self->extcmd == 2) {
		3005	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3006	} elsif ($self->extcmd == 1) {
		3007	#TODO: version 1, remove
		3008	unshift @msg, msgtype => "reply", msgid => $id;
		3009	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3010	}
2089	}	3011	}
2090		3012
2091	=item $success = $client->query ($flags, "text", \&cb)	3013	=item $success = $client->query ($flags, "text", \&cb)
2092		3014
2093	Queues a query to the client, calling the given callback with	3015	Queues a query to the client, calling the given callback with
2094	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3016	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2095	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3017	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2096		3018
2097	Queries can fail, so check the return code. Or don't, as queries will become	3019	Queries can fail, so check the return code. Or don't, as queries will
2098	reliable at some point in the future.	3020	become reliable at some point in the future.
2099		3021
2100	=cut	3022	=cut
2101		3023
2102	sub cf::client::query {	3024	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	3025	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	3033	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3034	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		3035
2114	$self->send_packet ($self->{query_queue}[0][0])	3036	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	3037	if @{ $self->{query_queue} } == 1;
		3038
		3039	1
2116	}	3040	}
2117		3041
2118	cf::client->attach (	3042	cf::client->attach (
		3043	on_connect => sub {
		3044	my ($ns) = @_;
		3045
		3046	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3047	},
2119	on_reply => sub {	3048	on_reply => sub {
2120	my ($ns, $msg) = @_;	3049	my ($ns, $msg) = @_;
2121		3050
2122	# this weird shuffling is so that direct followup queries	3051	# this weird shuffling is so that direct followup queries
2123	# get handled first	3052	# get handled first
…		…
2135	} else {	3064	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	3066	}
2138	}	3067	}
2139	},	3068	},
		3069	on_exticmd => sub {
		3070	my ($ns, $buf) = @_;
		3071
		3072	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3073
		3074	if (ref $msg) {
		3075	my ($type, $reply, @payload) =
		3076	"ARRAY" eq ref $msg
		3077	? @$msg
		3078	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3079
		3080	my @reply;
		3081
		3082	if (my $cb = $EXTICMD{$type}) {
		3083	@reply = $cb->($ns, @payload);
		3084	}
		3085
		3086	$ns->ext_reply ($reply, @reply)
		3087	if $reply;
		3088
		3089	} else {
		3090	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3091	}
		3092
		3093	cf::override;
		3094	},
2140	);	3095	);
2141		3096
2142	=item $client->async (\&cb)	3097	=item $client->async (\&cb)
2143		3098
2144	Create a new coroutine, running the specified callback. The coroutine will	3099	Create a new coroutine, running the specified callback. The coroutine will
…		…
2185	our $safe = new Safe "safe";	3140	our $safe = new Safe "safe";
2186	our $safe_hole = new Safe::Hole;	3141	our $safe_hole = new Safe::Hole;
2187		3142
2188	$SIG{FPE} = 'IGNORE';	3143	$SIG{FPE} = 'IGNORE';
2189		3144
2190	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3145	$safe->permit_only (Opcode::opset qw(
		3146	:base_core :base_mem :base_orig :base_math :base_loop
		3147	grepstart grepwhile mapstart mapwhile
		3148	sort time
		3149	));
2191		3150
2192	# here we export the classes and methods available to script code	3151	# here we export the classes and methods available to script code
2193		3152
2194	=pod	3153	=pod
2195		3154
2196	The following functions and methods are available within a safe environment:	3155	The following functions and methods are available within a safe environment:
2197		3156
2198	cf::object contr pay_amount pay_player map	3157	cf::object
		3158	contr pay_amount pay_player map x y force_find force_add destroy
		3159	insert remove name archname title slaying race decrease split
		3160	value
		3161
2199	cf::object::player player	3162	cf::object::player
2200	cf::player peaceful	3163	player
2201	cf::map trigger	3164
		3165	cf::player
		3166	peaceful
		3167
		3168	cf::map
		3169	trigger
2202		3170
2203	=cut	3171	=cut
2204		3172
2205	for (	3173	for (
2206	["cf::object" => qw(contr pay_amount pay_player map)],	3174	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3175	insert remove inv nrof name archname title slaying race
		3176	decrease split destroy change_exp value msg lore send_msg)],
2207	["cf::object::player" => qw(player)],	3177	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	3178	["cf::player" => qw(peaceful send_msg)],
2209	["cf::map" => qw(trigger)],	3179	["cf::map" => qw(trigger)],
2210	) {	3180	) {
2211	no strict 'refs';	3181	no strict 'refs';
2212	my ($pkg, @funs) = @$_;	3182	my ($pkg, @funs) = @$_;
2213	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3183	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2230	my ($code, %vars) = @_;	3200	my ($code, %vars) = @_;
2231		3201
2232	my $qcode = $code;	3202	my $qcode = $code;
2233	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3203	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2234	$qcode =~ s/\n/\\n/g;	3204	$qcode =~ s/\n/\\n/g;
		3205
		3206	%vars = (_dummy => 0) unless %vars;
2235		3207
2236	local $_;	3208	local $_;
2237	local @safe::cf::_safe_eval_args = values %vars;	3209	local @safe::cf::_safe_eval_args = values %vars;
2238		3210
2239	my $eval =	3211	my $eval =
…		…
2282	=back	3254	=back
2283		3255
2284	=cut	3256	=cut
2285		3257
2286	#############################################################################	3258	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459
2460	#############################################################################
2461	# the server's init and main functions	3259	# the server's init and main functions
2462		3260
2463	sub load_facedata($) {	3261	sub load_facedata($) {
2464	my ($path) = @_;	3262	my ($path) = @_;
		3263
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2465		3269
2466	warn "loading facedata from $path\n";	3270	warn "loading facedata from $path\n";
2467		3271
2468	my $facedata;	3272	my $facedata;
2469	0 < aio_load $path, $facedata	3273	0 < aio_load $path, $facedata
…		…
2472	$facedata = Coro::Storable::thaw $facedata;	3276	$facedata = Coro::Storable::thaw $facedata;
2473		3277
2474	$facedata->{version} == 2	3278	$facedata->{version} == 2
2475	or cf::cleanup "$path: version mismatch, cannot proceed.";	3279	or cf::cleanup "$path: version mismatch, cannot proceed.";
2476		3280
		3281	# patch in the exptable
		3282	$facedata->{resource}{"res/exp_table"} = {
		3283	type => FT_RSRC,
		3284	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3285	};
		3286	cf::cede_to_tick;
		3287
2477	{	3288	{
2478	my $faces = $facedata->{faceinfo};	3289	my $faces = $facedata->{faceinfo};
2479		3290
2480	while (my ($face, $info) = each %$faces) {	3291	while (my ($face, $info) = each %$faces) {
2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3292	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3293
2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3294	cf::face::set_visibility $idx, $info->{visibility};
		3295	cf::face::set_magicmap $idx, $info->{magicmap};
2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3296	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3297	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2485	Coro::cede;	3298
		3299	cf::cede_to_tick;
2486	}	3300	}
2487		3301
2488	while (my ($face, $info) = each %$faces) {	3302	while (my ($face, $info) = each %$faces) {
2489	next unless $info->{smooth};	3303	next unless $info->{smooth};
		3304
2490	my $idx = cf::face::find $face	3305	my $idx = cf::face::find $face
2491	or next;	3306	or next;
		3307
2492	if (my $smooth = cf::face::find $info->{smooth}) {	3308	if (my $smooth = cf::face::find $info->{smooth}) {
		3309	cf::face::set_smooth $idx, $smooth;
2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3310	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2494	} else {	3311	} else {
2495	warn "smooth face '$info->{smooth}' not found for face '$face'";	3312	warn "smooth face '$info->{smooth}' not found for face '$face'";
2496	}	3313	}
2497	Coro::cede;	3314
		3315	cf::cede_to_tick;
2498	}	3316	}
2499	}	3317	}
2500		3318
2501	{	3319	{
2502	my $anims = $facedata->{animinfo};	3320	my $anims = $facedata->{animinfo};
2503		3321
2504	while (my ($anim, $info) = each %$anims) {	3322	while (my ($anim, $info) = each %$anims) {
2505	cf::anim::set $anim, $info->{frames}, $info->{facings};	3323	cf::anim::set $anim, $info->{frames}, $info->{facings};
2506	Coro::cede;	3324	cf::cede_to_tick;
2507	}	3325	}
2508		3326
2509	cf::anim::invalidate_all; # d'oh	3327	cf::anim::invalidate_all; # d'oh
2510	}	3328	}
2511		3329
		3330	{
		3331	my $res = $facedata->{resource};
		3332
		3333	while (my ($name, $info) = each %$res) {
		3334	if (defined $info->{type}) {
		3335	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3336
		3337	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3338	cf::face::set_type $idx, $info->{type};
		3339	} else {
		3340	$RESOURCE{$name} = $info;
		3341	}
		3342
		3343	cf::cede_to_tick;
		3344	}
		3345	}
		3346
		3347	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3348
2512	1	3349	1
2513	}	3350	}
2514		3351
		3352	cf::global->attach (on_resource_update => sub {
		3353	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3354	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3355
		3356	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3357	my $sound = $soundconf->{compat}[$_]
		3358	or next;
		3359
		3360	my $face = cf::face::find "sound/$sound->[1]";
		3361	cf::sound::set $sound->[0] => $face;
		3362	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3363	}
		3364
		3365	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3366	my $face = cf::face::find "sound/$v";
		3367	cf::sound::set $k => $face;
		3368	}
		3369	}
		3370	});
		3371
		3372	register_exticmd fx_want => sub {
		3373	my ($ns, $want) = @_;
		3374
		3375	while (my ($k, $v) = each %$want) {
		3376	$ns->fx_want ($k, $v);
		3377	}
		3378	};
		3379
		3380	sub load_resource_file($) {
		3381	my $guard = lock_acquire "load_resource_file";
		3382
		3383	my $status = load_resource_file_ $_[0];
		3384	get_slot 0.1, 100;
		3385	cf::arch::commit_load;
		3386
		3387	$status
		3388	}
		3389
2515	sub reload_regions {	3390	sub reload_regions {
		3391	# HACK to clear player env face cache, we need some signal framework
		3392	# for this (global event?)
		3393	%ext::player_env::MUSIC_FACE_CACHE = ();
		3394
2516	load_resource_file "$MAPDIR/regions"	3395	load_resource_file "$MAPDIR/regions"
2517	or die "unable to load regions file\n";	3396	or die "unable to load regions file\n";
		3397
		3398	for (cf::region::list) {
		3399	$_->{match} = qr/$_->{match}/
		3400	if exists $_->{match};
		3401	}
2518	}	3402	}
2519		3403
2520	sub reload_facedata {	3404	sub reload_facedata {
2521	load_facedata "$DATADIR/facedata"	3405	load_facedata "$DATADIR/facedata"
2522	or die "unable to load facedata\n";	3406	or die "unable to load facedata\n";
…		…
2533	}	3417	}
2534		3418
2535	sub reload_resources {	3419	sub reload_resources {
2536	warn "reloading resource files...\n";	3420	warn "reloading resource files...\n";
2537		3421
2538	reload_regions;
2539	reload_facedata;	3422	reload_facedata;
2540	reload_archetypes;	3423	reload_archetypes;
		3424	reload_regions;
2541	reload_treasures;	3425	reload_treasures;
2542		3426
2543	warn "finished reloading resource files\n";	3427	warn "finished reloading resource files\n";
2544	}	3428	}
2545		3429
2546	sub init {	3430	sub reload_config {
2547	reload_resources;	3431	warn "reloading config file...\n";
2548	}
2549		3432
2550	sub cfg_load {
2551	open my $fh, "<:utf8", "$CONFDIR/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2552	or return;	3434	or return;
2553		3435
2554	local $/;	3436	local $/;
2555	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2556		3438
2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2558		3440
2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3441	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3442	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2564	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2565	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2566	};	3448	};
2567	warn $@ if $@;	3449	warn $@ if $@;
2568	}	3450	}
		3451
		3452	warn "finished reloading resource files\n";
		3453	}
		3454
		3455	sub pidfile() {
		3456	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3457	or die "$PIDFILE: $!";
		3458	flock $fh, &Fcntl::LOCK_EX
		3459	or die "$PIDFILE: flock: $!";
		3460	$fh
		3461	}
		3462
		3463	# make sure only one server instance is running at any one time
		3464	sub atomic {
		3465	my $fh = pidfile;
		3466
		3467	my $pid = <$fh>;
		3468	kill 9, $pid if $pid > 0;
		3469
		3470	seek $fh, 0, 0;
		3471	print $fh $$;
		3472	}
		3473
		3474	sub main_loop {
		3475	warn "EV::loop starting\n";
		3476	if (1) {
		3477	EV::loop;
		3478	}
		3479	warn "EV::loop returned\n";
		3480	goto &main_loop unless $REALLY_UNLOOP;
2569	}	3481	}
2570		3482
2571	sub main {	3483	sub main {
		3484	cf::init_globals; # initialise logging
		3485
		3486	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3487	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3488	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3489	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3490
		3491	cf::init_experience;
		3492	cf::init_anim;
		3493	cf::init_attackmess;
		3494	cf::init_dynamic;
		3495
		3496	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3497
2572	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2573	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3500	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2575	(async {	3501	(async {
2576	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3503	EV::loop EV::LOOP_ONESHOT;
2577	})->prio (Coro::PRIO_MAX);	3504	})->prio (Coro::PRIO_MAX);
2578	};	3505	};
2579		3506
2580	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
		3508
		3509	cf::sync_job {
		3510	cf::load_settings;
		3511	cf::load_materials;
		3512
		3513	reload_resources;
		3514	reload_config;
2581	db_init;	3515	db_init;
		3516
		3517	cf::init_uuid;
		3518	cf::init_signals;
		3519	cf::init_commands;
		3520	cf::init_skills;
		3521
		3522	cf::init_beforeplay;
		3523
		3524	atomic;
		3525
2582	load_extensions;	3526	load_extensions;
2583		3527
2584	$TICK_WATCHER->start;	3528	utime time, time, $RUNTIMEFILE;
2585	Event::loop;	3529
		3530	# no (long-running) fork's whatsoever before this point(!)
		3531	use POSIX ();
		3532	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3533
		3534	(pop @POST_INIT)->(0) while @POST_INIT;
		3535	};
		3536
		3537	main_loop;
2586	}	3538	}
2587		3539
2588	#############################################################################	3540	#############################################################################
2589	# initialisation and cleanup	3541	# initialisation and cleanup
2590		3542
2591	# install some emergency cleanup handlers	3543	# install some emergency cleanup handlers
2592	BEGIN {	3544	BEGIN {
		3545	our %SIGWATCHER = ();
2593	for my $signal (qw(INT HUP TERM)) {	3546	for my $signal (qw(INT HUP TERM)) {
2594	Event->signal (	3547	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2595	reentrant => 0,
2596	data => WF_AUTOCANCEL,
2597	signal => $signal,
2598	prio => 0,
2599	cb => sub {
2600	cf::cleanup "SIG$signal";	3548	cf::cleanup "SIG$signal";
2601	},
2602	);	3549	};
		3550	}
		3551	}
		3552
		3553	sub write_runtime_sync {
		3554	# first touch the runtime file to show we are still running:
		3555	# the fsync below can take a very very long time.
		3556
		3557	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3558
		3559	my $guard = cf::lock_acquire "write_runtime";
		3560
		3561	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3562	or return;
		3563
		3564	my $value = $cf::RUNTIME + 90 + 10;
		3565	# 10 is the runtime save interval, for a monotonic clock
		3566	# 60 allows for the watchdog to kill the server.
		3567
		3568	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3569	and return;
		3570
		3571	# always fsync - this file is important
		3572	aio_fsync $fh
		3573	and return;
		3574
		3575	# touch it again to show we are up-to-date
		3576	aio_utime $fh, undef, undef;
		3577
		3578	close $fh
		3579	or return;
		3580
		3581	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3582	and return;
		3583
		3584	warn "runtime file written.\n";
		3585
2603	}	3586	1
		3587	}
		3588
		3589	our $uuid_lock;
		3590	our $uuid_skip;
		3591
		3592	sub write_uuid_sync($) {
		3593	$uuid_skip ||= $_[0];
		3594
		3595	return if $uuid_lock;
		3596	local $uuid_lock = 1;
		3597
		3598	my $uuid = "$LOCALDIR/uuid";
		3599
		3600	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3601	or return;
		3602
		3603	my $value = uuid_seq uuid_cur;
		3604
		3605	unless ($value) {
		3606	warn "cowardly refusing to write zero uuid value!\n";
		3607	return;
		3608	}
		3609
		3610	my $value = uuid_str $value + $uuid_skip;
		3611	$uuid_skip = 0;
		3612
		3613	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3614	and return;
		3615
		3616	# always fsync - this file is important
		3617	aio_fsync $fh
		3618	and return;
		3619
		3620	close $fh
		3621	or return;
		3622
		3623	aio_rename "$uuid~", $uuid
		3624	and return;
		3625
		3626	warn "uuid file written ($value).\n";
		3627
		3628	1
		3629
		3630	}
		3631
		3632	sub write_uuid($$) {
		3633	my ($skip, $sync) = @_;
		3634
		3635	$sync ? write_uuid_sync $skip
		3636	: async { write_uuid_sync $skip };
2604	}	3637	}
2605		3638
2606	sub emergency_save() {	3639	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	3640	my $freeze_guard = cf::freeze_mainloop;
2608		3641
2609	warn "enter emergency perl save\n";	3642	warn "emergency_perl_save: enter\n";
2610		3643
2611	cf::sync_job {	3644	cf::sync_job {
		3645	# this is a trade-off: we want to be very quick here, so
		3646	# save all maps without fsync, and later call a global sync
		3647	# (which in turn might be very very slow)
		3648	local $USE_FSYNC = 0;
		3649
2612	# use a peculiar iteration method to avoid tripping on perl	3650	# use a peculiar iteration method to avoid tripping on perl
2613	# refcount bugs in for. also avoids problems with players	3651	# refcount bugs in for. also avoids problems with players
2614	# and maps saved/destroyed asynchronously.	3652	# and maps saved/destroyed asynchronously.
2615	warn "begin emergency player save\n";	3653	warn "emergency_perl_save: begin player save\n";
2616	for my $login (keys %cf::PLAYER) {	3654	for my $login (keys %cf::PLAYER) {
2617	my $pl = $cf::PLAYER{$login} or next;	3655	my $pl = $cf::PLAYER{$login} or next;
2618	$pl->valid or next;	3656	$pl->valid or next;
		3657	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2619	$pl->save;	3658	$pl->save;
2620	}	3659	}
2621	warn "end emergency player save\n";	3660	warn "emergency_perl_save: end player save\n";
2622		3661
2623	warn "begin emergency map save\n";	3662	warn "emergency_perl_save: begin map save\n";
2624	for my $path (keys %cf::MAP) {	3663	for my $path (keys %cf::MAP) {
2625	my $map = $cf::MAP{$path} or next;	3664	my $map = $cf::MAP{$path} or next;
2626	$map->valid or next;	3665	$map->valid or next;
2627	$map->save;	3666	$map->save;
2628	}	3667	}
2629	warn "end emergency map save\n";	3668	warn "emergency_perl_save: end map save\n";
2630		3669
2631	warn "begin emergency database checkpoint\n";	3670	warn "emergency_perl_save: begin database checkpoint\n";
2632	BDB::db_env_txn_checkpoint $DB_ENV;	3671	BDB::db_env_txn_checkpoint $DB_ENV;
2633	warn "end emergency database checkpoint\n";	3672	warn "emergency_perl_save: end database checkpoint\n";
		3673
		3674	warn "emergency_perl_save: begin write uuid\n";
		3675	write_uuid_sync 1;
		3676	warn "emergency_perl_save: end write uuid\n";
2634	};	3677	};
2635		3678
		3679	warn "emergency_perl_save: starting sync()\n";
		3680	IO::AIO::aio_sync sub {
		3681	warn "emergency_perl_save: finished sync()\n";
		3682	};
		3683
2636	warn "leave emergency perl save\n";	3684	warn "emergency_perl_save: leave\n";
2637	}	3685	}
2638		3686
2639	sub post_cleanup {	3687	sub post_cleanup {
2640	my ($make_core) = @_;	3688	my ($make_core) = @_;
2641		3689
2642	warn Carp::longmess "post_cleanup backtrace"	3690	warn Carp::longmess "post_cleanup backtrace"
2643	if $make_core;	3691	if $make_core;
		3692
		3693	my $fh = pidfile;
		3694	unlink $PIDFILE if <$fh> == $$;
		3695	}
		3696
		3697	# a safer delete_package, copied from Symbol
		3698	sub clear_package($) {
		3699	my $pkg = shift;
		3700
		3701	# expand to full symbol table name if needed
		3702	unless ($pkg =~ /^main::.*::$/) {
		3703	$pkg = "main$pkg" if $pkg =~ /^::/;
		3704	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3705	$pkg .= '::' unless $pkg =~ /::$/;
		3706	}
		3707
		3708	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3709	my $stem_symtab = *{$stem}{HASH};
		3710
		3711	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3712	or return;
		3713
		3714	# clear all symbols
		3715	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3716	for my $name (keys %$leaf_symtab) {
		3717	_gv_clear *{"$pkg$name"};
		3718	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3719	}
		3720	warn "cleared package $pkg\n";#d#
2644	}	3721	}
2645		3722
2646	sub do_reload_perl() {	3723	sub do_reload_perl() {
2647	# can/must only be called in main	3724	# can/must only be called in main
2648	if ($Coro::current != $Coro::main) {	3725	if ($Coro::current != $Coro::main) {
2649	warn "can only reload from main coroutine";	3726	warn "can only reload from main coroutine";
2650	return;	3727	return;
2651	}	3728	}
2652		3729
		3730	return if $RELOAD++;
		3731
		3732	my $t1 = EV::time;
		3733
		3734	while ($RELOAD) {
2653	warn "reloading...";	3735	warn "reloading...";
2654		3736
2655	warn "entering sync_job";	3737	warn "entering sync_job";
2656		3738
2657	cf::sync_job {	3739	cf::sync_job {
2658	cf::write_runtime; # external watchdog should not bark	3740	cf::write_runtime_sync; # external watchdog should not bark
2659	cf::emergency_save;	3741	cf::emergency_save;
2660	cf::write_runtime; # external watchdog should not bark	3742	cf::write_runtime_sync; # external watchdog should not bark
2661		3743
2662	warn "syncing database to disk";	3744	warn "syncing database to disk";
2663	BDB::db_env_txn_checkpoint $DB_ENV;	3745	BDB::db_env_txn_checkpoint $DB_ENV;
2664		3746
2665	# if anything goes wrong in here, we should simply crash as we already saved	3747	# if anything goes wrong in here, we should simply crash as we already saved
2666		3748
2667	warn "cancelling all WF_AUTOCANCEL watchers";
2668	for (Event::all_watchers) {
2669	$_->cancel if $_->data & WF_AUTOCANCEL;
2670	}
2671
2672	warn "flushing outstanding aio requests";	3749	warn "flushing outstanding aio requests";
2673	for (;;) {
2674	BDB::flush;
2675	IO::AIO::flush;
2676	Coro::cede;
2677	last unless IO::AIO::nreqs || BDB::nreqs;	3750	while (IO::AIO::nreqs || BDB::nreqs) {
2678	warn "iterate...";	3751	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2679	}
2680
2681	++$RELOAD;
2682
2683	warn "cancelling all extension coros";
2684	$_->cancel for values %EXT_CORO;
2685	%EXT_CORO = ();
2686
2687	warn "removing commands";
2688	%COMMAND = ();
2689
2690	warn "removing ext commands";
2691	%EXTCMD = ();
2692
2693	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";
2696
2697	if (my $cb = $pkg->can ("unload")) {
2698	eval {
2699	$cb->($pkg);
2700	1
2701	} or warn "$pkg unloaded, but with errors: $@";
2702	}	3752	}
2703		3753
2704	warn "... nuking $pkg";	3754	warn "cancelling all extension coros";
2705	Symbol::delete_package $pkg;	3755	$_->cancel for values %EXT_CORO;
2706	}	3756	%EXT_CORO = ();
2707		3757
2708	warn "unloading all perl modules loaded from $LIBDIR";	3758	warn "removing commands";
2709	while (my ($k, $v) = each %INC) {	3759	%COMMAND = ();
2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2711		3760
		3761	warn "removing ext/exti commands";
		3762	%EXTCMD = ();
		3763	%EXTICMD = ();
		3764
		3765	warn "unloading/nuking all extensions";
		3766	for my $pkg (@EXTS) {
2712	warn "... unloading $k";	3767	warn "... unloading $pkg";
2713	delete $INC{$k};
2714		3768
2715	$k =~ s/\.pm$//;
2716	$k =~ s/\//::/g;
2717
2718	if (my $cb = $k->can ("unload_module")) {	3769	if (my $cb = $pkg->can ("unload")) {
		3770	eval {
2719	$cb->();	3771	$cb->($pkg);
		3772	1
		3773	} or warn "$pkg unloaded, but with errors: $@";
		3774	}
		3775
		3776	warn "... clearing $pkg";
		3777	clear_package $pkg;
2720	}	3778	}
2721		3779
2722	Symbol::delete_package $k;	3780	warn "unloading all perl modules loaded from $LIBDIR";
		3781	while (my ($k, $v) = each %INC) {
		3782	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3783
		3784	warn "... unloading $k";
		3785	delete $INC{$k};
		3786
		3787	$k =~ s/\.pm$//;
		3788	$k =~ s/\//::/g;
		3789
		3790	if (my $cb = $k->can ("unload_module")) {
		3791	$cb->();
		3792	}
		3793
		3794	clear_package $k;
2723	}	3795	}
2724		3796
2725	warn "getting rid of safe::, as good as possible";	3797	warn "getting rid of safe::, as good as possible";
2726	Symbol::delete_package "safe::$_"	3798	clear_package "safe::$_"
2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3799	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2728		3800
2729	warn "unloading cf.pm \"a bit\"";	3801	warn "unloading cf.pm \"a bit\"";
2730	delete $INC{"cf.pm"};	3802	delete $INC{"cf.pm"};
2731	delete $INC{"cf/pod.pm"};	3803	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2732		3804
2733	# don't, removes xs symbols, too,	3805	# don't, removes xs symbols, too,
2734	# and global variables created in xs	3806	# and global variables created in xs
2735	#Symbol::delete_package __PACKAGE__;	3807	#clear_package __PACKAGE__;
2736		3808
2737	warn "unload completed, starting to reload now";	3809	warn "unload completed, starting to reload now";
2738		3810
2739	warn "reloading cf.pm";	3811	warn "reloading cf.pm";
2740	require cf;	3812	require cf;
2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3813	cf::_connect_to_perl_1;
2742		3814
2743	warn "loading config and database again";	3815	warn "loading config and database again";
2744	cf::cfg_load;	3816	cf::reload_config;
2745		3817
2746	warn "loading extensions";	3818	warn "loading extensions";
2747	cf::load_extensions;	3819	cf::load_extensions;
2748		3820
		3821	if ($REATTACH_ON_RELOAD) {
2749	warn "reattaching attachments to objects/players";	3822	warn "reattaching attachments to objects/players";
2750	_global_reattach; # objects, sockets	3823	_global_reattach; # objects, sockets
2751	warn "reattaching attachments to maps";	3824	warn "reattaching attachments to maps";
2752	reattach $_ for values %MAP;	3825	reattach $_ for values %MAP;
2753	warn "reattaching attachments to players";	3826	warn "reattaching attachments to players";
2754	reattach $_ for values %PLAYER;	3827	reattach $_ for values %PLAYER;
		3828	}
2755		3829
		3830	warn "running post_init jobs";
		3831	(pop @POST_INIT)->(1) while @POST_INIT;
		3832
2756	warn "leaving sync_job";	3833	warn "leaving sync_job";
2757		3834
2758	1	3835	1
2759	} or do {	3836	} or do {
2760	warn $@;	3837	warn $@;
2761	warn "error while reloading, exiting.";	3838	cf::cleanup "error while reloading, exiting.";
2762	exit 1;
2763	};	3839	};
2764		3840
2765	warn "reloaded";	3841	warn "reloaded";
		3842	--$RELOAD;
		3843	}
		3844
		3845	$t1 = EV::time - $t1;
		3846	warn "reload completed in ${t1}s\n";
2766	};	3847	};
2767		3848
2768	our $RELOAD_WATCHER; # used only during reload	3849	our $RELOAD_WATCHER; # used only during reload
2769		3850
2770	sub reload_perl() {	3851	sub reload_perl() {
2771	# doing reload synchronously and two reloads happen back-to-back,	3852	# doing reload synchronously and two reloads happen back-to-back,
2772	# coro crashes during coro_state_free->destroy here.	3853	# coro crashes during coro_state_free->destroy here.
2773		3854
2774	$RELOAD_WATCHER ||= Event->timer (	3855	$RELOAD_WATCHER ||= cf::async {
2775	reentrant => 0,	3856	Coro::AIO::aio_wait cache_extensions;
2776	after => 0,	3857
2777	data => WF_AUTOCANCEL,	3858	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2778	cb => sub {
2779	do_reload_perl;	3859	do_reload_perl;
2780	undef $RELOAD_WATCHER;	3860	undef $RELOAD_WATCHER;
2781	},	3861	};
2782	);	3862	};
2783	}	3863	}
2784		3864
2785	register_command "reload" => sub {	3865	register_command "reload" => sub {
2786	my ($who, $arg) = @_;	3866	my ($who, $arg) = @_;
2787		3867
2788	if ($who->flag (FLAG_WIZ)) {	3868	if ($who->flag (FLAG_WIZ)) {
2789	$who->message ("reloading server.");	3869	$who->message ("reloading server.");
		3870	async {
		3871	$Coro::current->{desc} = "perl_reload";
2790	async { reload_perl };	3872	reload_perl;
		3873	};
2791	}	3874	}
2792	};	3875	};
2793		3876
2794	unshift @INC, $LIBDIR;	3877	unshift @INC, $LIBDIR;
2795		3878
…		…
2797		3880
2798	our @WAIT_FOR_TICK;	3881	our @WAIT_FOR_TICK;
2799	our @WAIT_FOR_TICK_BEGIN;	3882	our @WAIT_FOR_TICK_BEGIN;
2800		3883
2801	sub wait_for_tick {	3884	sub wait_for_tick {
2802	return unless $TICK_WATCHER->is_active;
2803	return if $Coro::current == $Coro::main;	3885	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2804		3886
2805	my $signal = new Coro::Signal;	3887	my $signal = new Coro::Signal;
2806	push @WAIT_FOR_TICK, $signal;	3888	push @WAIT_FOR_TICK, $signal;
2807	$signal->wait;	3889	$signal->wait;
2808	}	3890	}
2809		3891
2810	sub wait_for_tick_begin {	3892	sub wait_for_tick_begin {
2811	return unless $TICK_WATCHER->is_active;
2812	return if $Coro::current == $Coro::main;	3893	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2813		3894
2814	my $signal = new Coro::Signal;	3895	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3896	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3897	$signal->wait;
2817	}	3898	}
2818		3899
2819	$TICK_WATCHER = Event->timer (	3900	sub tick {
2820	reentrant => 0,
2821	parked => 1,
2822	prio => 0,
2823	at => $NEXT_TICK || $TICK,
2824	data => WF_AUTOCANCEL,
2825	cb => sub {
2826	if ($Coro::current != $Coro::main) {	3901	if ($Coro::current != $Coro::main) {
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3902	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3903	unless ++$bug_warning > 10;
2829	return;	3904	return;
2830	}	3905	}
2831		3906
2832	$NOW = Event::time;
2833
2834	cf::server_tick; # one server iteration	3907	cf::server_tick; # one server iteration
2835		3908
2836	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;
2838
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3909	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2840	$NEXT_RUNTIME_WRITE = $NOW + 10;	3910	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2841	Coro::async_pool {	3911	Coro::async_pool {
		3912	$Coro::current->{desc} = "runtime saver";
2842	write_runtime	3913	write_runtime_sync
2843	or warn "ERROR: unable to write runtime file: $!";	3914	or warn "ERROR: unable to write runtime file: $!";
2844	};
2845	}	3915	};
		3916	}
2846		3917
2847	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#
2849
2850	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2852
2853	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;
2855
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3918	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2857	$sig->send;	3919	$sig->send;
2858	}	3920	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {	3921	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;	3922	$sig->send;
2861	}
2862
2863	_post_tick;
2864	},	3923	}
2865	);	3924
		3925	$LOAD = ($NOW - $TICK_START) / $TICK;
		3926	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3927
		3928	if (0) {
		3929	if ($NEXT_TICK) {
		3930	my $jitter = $TICK_START - $NEXT_TICK;
		3931	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3932	warn "jitter $JITTER\n";#d#
		3933	}
		3934	}
		3935	}
2866		3936
2867	{	3937	{
2868	BDB::max_poll_time $TICK * 0.1;	3938	# configure BDB
2869	$BDB_POLL_WATCHER = Event->io (	3939
2870	reentrant => 0,
2871	fd => BDB::poll_fileno,
2872	poll => 'r',
2873	prio => 0,
2874	data => WF_AUTOCANCEL,
2875	cb => \&BDB::poll_cb,
2876	);
2877	BDB::min_parallel 8;	3940	BDB::min_parallel 8;
2878		3941	BDB::max_poll_reqs $TICK * 0.1;
2879	BDB::set_sync_prepare {	3942	$AnyEvent::BDB::WATCHER->priority (1);
2880	my $status;
2881	my $current = $Coro::current;
2882	(
2883	sub {
2884	$status = $!;
2885	$current->ready; undef $current;
2886	},
2887	sub {
2888	Coro::schedule while defined $current;
2889	$! = $status;
2890	},
2891	)
2892	};
2893		3943
2894	unless ($DB_ENV) {	3944	unless ($DB_ENV) {
2895	$DB_ENV = BDB::db_env_create;	3945	$DB_ENV = BDB::db_env_create;
		3946	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3947	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3948	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3949	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3950	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2896		3951
2897	cf::sync_job {	3952	cf::sync_job {
2898	eval {	3953	eval {
2899	BDB::db_env_open	3954	BDB::db_env_open
2900	$DB_ENV,	3955	$DB_ENV,
…		…
2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3957	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3958	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2904	0666;	3959	0666;
2905		3960
2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3961	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2907
2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2909	$DB_ENV->set_lk_detect;
2910	};	3962	};
2911		3963
2912	cf::cleanup "db_env_open(db): $@" if $@;	3964	cf::cleanup "db_env_open(db): $@" if $@;
2913	};	3965	};
2914	}	3966	}
		3967
		3968	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3969	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3970	};
		3971	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3972	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3973	};
		3974	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3975	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3976	};
2915	}	3977	}
2916		3978
2917	{	3979	{
		3980	# configure IO::AIO
		3981
2918	IO::AIO::min_parallel 8;	3982	IO::AIO::min_parallel 8;
2919
2920	undef $Coro::AIO::WATCHER;
2921	IO::AIO::max_poll_time $TICK * 0.1;	3983	IO::AIO::max_poll_time $TICK * 0.1;
2922	$AIO_POLL_WATCHER = Event->io (	3984	undef $AnyEvent::AIO::WATCHER;
2923	reentrant => 0,
2924	data => WF_AUTOCANCEL,
2925	fd => IO::AIO::poll_fileno,
2926	poll => 'r',
2927	prio => 6,
2928	cb => \&IO::AIO::poll_cb,
2929	);
2930	}	3985	}
2931		3986
2932	my $_log_backtrace;	3987	my $_log_backtrace;
2933		3988
2934	sub _log_backtrace {	3989	sub _log_backtrace {
…		…
2937	$msg =~ s/\n//;	3992	$msg =~ s/\n//;
2938		3993
2939	# limit the # of concurrent backtraces	3994	# limit the # of concurrent backtraces
2940	if ($_log_backtrace < 2) {	3995	if ($_log_backtrace < 2) {
2941	++$_log_backtrace;	3996	++$_log_backtrace;
		3997	my $perl_bt = Carp::longmess $msg;
2942	async {	3998	async {
		3999	$Coro::current->{desc} = "abt $msg";
		4000
2943	my @bt = fork_call {	4001	my @bt = fork_call {
2944	@addr = map { sprintf "%x", $_ } @addr;	4002	@addr = map { sprintf "%x", $_ } @addr;
2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2947	or die "addr2line: $!";	4005	or die "addr2line: $!";
…		…
2955	}	4013	}
2956		4014
2957	@funcs	4015	@funcs
2958	};	4016	};
2959		4017
2960	LOG llevInfo, "[ABT] $msg\n";	4018	LOG llevInfo, "[ABT] $perl_bt\n";
		4019	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2961	LOG llevInfo, "[ABT] $_\n" for @bt;	4020	LOG llevInfo, "[ABT] $_\n" for @bt;
2962	--$_log_backtrace;	4021	--$_log_backtrace;
2963	};	4022	};
2964	} else {	4023	} else {
2965	LOG llevInfo, "[ABT] $msg\n";	4024	LOG llevInfo, "[ABT] $msg\n";
2966	LOG llevInfo, "[ABT] [suppressed]\n";	4025	LOG llevInfo, "[ABT] [suppressed]\n";
2967	}	4026	}
2968	}	4027	}
2969		4028
2970	# load additional modules	4029	# load additional modules
2971	use cf::pod;	4030	require "cf/$_.pm" for @EXTRA_MODULES;
		4031	cf::_connect_to_perl_2;
2972		4032
2973	END { cf::emergency_save }	4033	END { cf::emergency_save }
2974		4034
2975	1	4035	1
2976		4036

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