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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.262 by root, Sat Apr 28 05:55:55 2007 UTC vs.
Revision 1.493 by root, Mon Oct 26 02:34:37 2009 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;	58	use Digest::MD5;
28	use Fcntl;	59	use Fcntl;
29	use YAML::Syck ();	60	use YAML::XS ();
30	use IO::AIO 2.32 ();	61	use IO::AIO ();
31	use Time::HiRes;	62	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	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	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$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		81
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		83
49	our %COMMAND = ();	84	our %COMMAND = ();
50	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
51		86
52	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
56		92
57	our $RELOAD; # number of reloads so far	93	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	94	our @EVENT;
		95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
59		97
60	our $CONFDIR = confdir;	98	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	99	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	100	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	101	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	102	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	103	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	107	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
71		113
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	114	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	115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	116	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	121	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
82		125
83	our %CFG;	126	our %CFG;
84		127
85	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
87		131
88	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	134	our $LINK_MAP; # the special {link} map, which is always available
91		135
92	# used to convert map paths into valid unix filenames by replacing / by ∕	136	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
		148
95	binmode STDOUT;	149	binmode STDOUT;
96	binmode STDERR;	150	binmode STDERR;
97		151
98	# read virtual server time, if available	152	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	154	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
103	}	157	}
		158
		159	eval "sub TICK() { $TICK } 1" or die;
104		160
105	mkdir $_	161	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		163
108	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
109		165
110	sub cf::map::normalise;	166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
111		178
112	#############################################################################	179	#############################################################################
113		180
114	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
115		182
…		…
139		206
140	=item $cf::TICK	207	=item $cf::TICK
141		208
142	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
143		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
144	=item %cf::CFG	221	=item %cf::CFG
145		222
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	224	from wherever your confdir points to.
148		225
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		227
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	228	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	229	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.	230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
		243
155	=back	244	=back
156		245
157	=cut	246	=cut
158		247
159	BEGIN {	248	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	249	my $msg = join "", @_;
162		250
163	$msg .= "\n"	251	$msg .= "\n"
164	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
165		253
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		255
168	utf8::encode $msg;
169	LOG llevError, $msg;	256	LOG llevError, $msg;
170	};	257	};
171	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
172		272
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		280
180	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	282	# within the Safe compartment.
182	for my $pkg (qw(	283	for my $pkg (qw(
183	cf::global cf::attachable	284	cf::global cf::attachable
184	cf::object cf::object::player	285	cf::object cf::object::player
185	cf::client cf::player	286	cf::client cf::player
186	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
187	cf::map cf::party cf::region	289	cf::party cf::region
188	)) {	290	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	292	}
192		293
193	$Event::DIED = sub {	294	$EV::DIED = sub {
194	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
195	};	296	};
		297
		298	#############################################################################
196		299
197	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
198		301
199	=over 4	302	=over 4
200		303
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	323	$d
221	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
222	}	325	}
223		326
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
227		328
228	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
229		330
230	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
231		332
232	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
233		334
		335	=cut
		336
		337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		338
		339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
		354	}
		355
234	=item cf::lock_wait $string	356	=item cf::lock_wait $string
235		357
236	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
237		359
238	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
239		361
240	Wait until the given lock is available and then acquires it and returns	362	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,	363	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	364	for example when the coroutine gets canceled), the lock is automatically
243	returned.	365	returned.
244		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
245	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
247		372
248	=item $locked = cf::lock_active $string	373	=item $locked = cf::lock_active $string
249		374
250	Return true if the lock is currently active, i.e. somebody has locked it.	375	Return true if the lock is currently active, i.e. somebody has locked it.
251		376
252	=cut	377	=cut
253		378
254	our %LOCK;	379	our $LOCKS = new Coro::SemaphoreSet;
255		380
256	sub lock_wait($) {	381	sub lock_wait($) {
257	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	383	}
265		384
266	sub lock_acquire($) {	385	sub lock_acquire($) {
267	my ($key) = @_;	386	$LOCKS->guard ($_[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	}	387	}
279		388
280	sub lock_active($) {	389	sub lock_active($) {
281	my ($key) = @_;	390	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	391	}
285		392
286	sub freeze_mainloop {	393	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
288		395
289	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	397	}
		398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
291	};	457	}
292	$TICK_WATCHER->stop;	458	};
293	$guard	459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
294	}	472	}
295		473
296	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
297		475
298	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		481
304	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
305		483
306	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
307		485
308	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
311		490
312	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
315	fast or be very important.	494	fast or be very important.
…		…
318		497
319	sub sync_job(&) {	498	sub sync_job(&) {
320	my ($job) = @_;	499	my ($job) = @_;
321		500
322	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
323	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
325		506
326	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	508
328	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
329		510
330	my $busy = 1;	511	my $busy = 1;
331	my @res;	512	my @res;
332		513
333	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	516	@res = eval { $job->() };
335	warn $@ if $@;	517	warn $@ if $@;
336	undef $busy;	518	undef $busy;
337	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
338		520
339	while ($busy) {	521	while ($busy) {
340	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
341	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
342		532
343	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
344	} else {	534	} else {
345	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
346		536
…		…
366	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
367		557
368	$coro	558	$coro
369	}	559	}
370		560
371	sub write_runtime {	561	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		562
374	my $runtime = "$LOCALDIR/runtime";	563	Executes the given code block with the given arguments in a seperate
		564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
375		567
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	568	=cut
377	or return;
378		569
379	my $value = $cf::RUNTIME + 90 + 10;	570	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	571	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		572
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	573	# we seemingly have to make a local copy of the whole thing,
384	and return;	574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
385		576
386	# always fsync - this file is important	577	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	578	reset_signals;
388	and return;	579	&$cb
		580	}, @args;
389		581
390	close $fh	582	wantarray ? @res : $res[-1]
391	or return;	583	}
392		584
393	aio_rename "$runtime~", $runtime	585	=item $coin = coin_from_name $name
394	and return;
395		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
396	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
397	}	737	}
398		738
399	=item cf::datalog type => key => value, ...	739	=item cf::datalog type => key => value, ...
400		740
401	Log a datalog packet of the given type with the given key-value pairs.	741	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		753
414	#############################################################################	754	#############################################################################
415		755
416	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
417		757
418	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
421		761
422	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	764	Deliantra).
425		765
426	=over 4	766	=over 4
427		767
428	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
429		769
…		…
473	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
474		814
475	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
477		817
478	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
480		820
481	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
482		822
483	=over 4	823	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
593		933
594	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		938
599	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	940	my $pkg = shift @arg;
601		941
602	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
632	}	972	}
633		973
634	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
635	} else {	975	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	977	}
638		978
639	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
640	}	980	}
641		981
…		…
643	if (ref $_[0]) {	983	if (ref $_[0]) {
644	_object_attach @_;	984	_object_attach @_;
645	} else {	985	} else {
646	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
647	}	987	}
		988	_recalc_want;
648	};	989	};
649		990
650	# all those should be optimised	991	# all those should be optimised
651	sub cf::attachable::detach {	992	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
656	reattach ($obj);	997	reattach ($obj);
657	} else {	998	} else {
658	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
659	}	1000	}
		1001	_recalc_want;
660	};	1002	};
661		1003
662	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
664		1006
…		…
679	";	1021	";
680	die if $@;	1022	die if $@;
681	}	1023	}
682		1024
683	our $override;	1025	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1027
686	sub override {	1028	sub override {
687	$override = 1;	1029	$override = 1;
688	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
689	}	1031	}
690		1032
691	sub do_invoke {	1033	sub do_invoke {
692	my $event = shift;	1034	my $event = shift;
693	my $callbacks = shift;	1035	my $callbacks = shift;
694		1036
695	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
696		1038
697	local $override;	1039	local $override;
698		1040
699	for (@$callbacks) {	1041	for (@$callbacks) {
700	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
709	}	1051	}
710		1052
711	0	1053	0
712	}	1054	}
713		1055
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1057
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1059
718	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
719		1061
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1065
724	=back	1066	=back
725		1067
726	=cut	1068	=cut
727		1069
728	#############################################################################	1070	#############################################################################
729	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
730		1114
731	sub reattach {	1115	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1117	my ($obj) = @_;
734		1118
		1119	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1121
737	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
738		1123
739	@$registry = ();	1124	@$registry = ();
740		1125
…		…
755	cf::attachable->attach (	1140	cf::attachable->attach (
756	prio => -1000000,	1141	prio => -1000000,
757	on_instantiate => sub {	1142	on_instantiate => sub {
758	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
759		1144
760	$data = from_json $data;	1145	$data = decode_json $data;
761		1146
762	for (@$data) {	1147	for (@$data) {
763	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
764		1149
765	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1166	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
783		1168
784	sync_job {	1169	sync_job {
785	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
788		1174
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1178	if ($cf::USE_FSYNC) {
		1179	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;
		1180	aio_fsync $fh;
		1181	}
793	close $fh;	1182	aio_close $fh;
794		1183
795	if (@$objs) {	1184	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1189	if ($cf::USE_FSYNC) {
		1190	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;
		1191	aio_fsync $fh;
		1192	}
801	close $fh;	1193	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
803	}	1195	}
804	} else {	1196	} else {
805	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
806	}	1198	}
807		1199
808	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1204	} else {
810	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
811	}	1206	}
812	} else {	1207	} else {
813	aio_unlink $filename;	1208	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
815	}	1210	}
816	}	1211	};
817	}	1212	}
818		1213
819	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
821		1216
…		…
833	or return;	1228	or return;
834		1229
835	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
837	or return;	1232	or return;
		1233
838	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
839	}	1236	}
840		1237
		1238	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
843	return ($data, $av);	1242	($data, $av)
844	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
845		1250
846	#############################################################################	1251	#############################################################################
847	# command handling &c	1252	# command handling &c
848		1253
849	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1268	}
864		1269
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1271
867	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
868		1277
869	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
870	called.	1279	called.
871		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
872	=cut	1292	=cut
873		1293
874	sub register_extcmd {	1294	sub register_extcmd {
875	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
876		1296
877	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
878	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
879		1307
880	cf::player->attach (	1308	cf::player->attach (
881	on_command => sub {	1309	on_command => sub {
882	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
883		1311
…		…
891	cf::override;	1319	cf::override;
892	},	1320	},
893	on_extcmd => sub {	1321	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
895		1323
896	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1325
898	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
904	} else {	1341	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1343	}
907		1344
908	cf::override;	1345	cf::override;
909	},	1346	},
910	);	1347	);
911		1348
		1349	# "readahead" all extensions
912	sub load_extension {	1350	sub cache_extensions {
913	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
914		1352
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1356	}
940	die $@;
941	}	1357	};
942		1358
943	push @EXTS, $pkg;	1359	$grp
944	}	1360	}
945		1361
946	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
947	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1367	next unless -r $path;
949	eval {	1368
950	load_extension $ext;	1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
951	1	1425	}
952	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
953	}	1431	};
954	}	1432	}
955		1433
956	#############################################################################	1434	#############################################################################
957		1435
		1436	=back
		1437
958	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
959		1439
960	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
961		1441
962	=cut	1442	=cut
963		1443
964	package cf::player;	1444	package cf::player;
965		1445
966	use Coro::AIO;	1446	use Coro::AIO;
967		1447
968	=head3 cf::player	1448	=head3 cf::player
969		1449
970	=over 4	1450	=over 4
		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
971		1465
972	=item cf::player::find $login	1466	=item cf::player::find $login
973		1467
974	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
975		1469
…		…
994		1488
995	sub exists($) {	1489	sub exists($) {
996	my ($login) = @_;	1490	my ($login) = @_;
997		1491
998	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
1000	}	1494	}
1001		1495
1002	sub find($) {	1496	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1498	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1508	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1509
1016	my $pl = load_pl path $login	1510	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
1019	}	1519	}
1020	}	1520	}
1021	}	1521	}
1022		1522
…		…
1031	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1032		1532
1033	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1035		1535
		1536	cf::get_slot 0.01;
		1537
1036	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1037	Coro::cede;	1539	cf::cede_to_tick;
1038	}	1540	}
1039		1541
1040	sub new($) {	1542	sub new($) {
1041	my ($login) = @_;	1543	my ($login) = @_;
1042		1544
…		…
1048	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1049		1551
1050	$self	1552	$self
1051	}	1553	}
1052		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
1053	=item $pl->quit_character	1565	=item $pl->quit_character
1054		1566
1055	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1057		1569
…		…
1061	my ($pl) = @_;	1573	my ($pl) = @_;
1062		1574
1063	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1064		1576
1065	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1579
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1072		1586
1073	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1624	or return [];
1111		1625
1112	my @logins;	1626	my @logins;
1113		1627
1114	for my $login (@$dirs) {	1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1118		1638
1119	utf8::decode $login;	1639	utf8::decode $login;
1120	push @logins, $login;	1640	push @logins, $login;
1121	}	1641	}
1122		1642
…		…
1149	}	1669	}
1150		1670
1151	\@paths	1671	\@paths
1152	}	1672	}
1153		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1154	=item $player->ext_reply ($msgid, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1155		1679
1156	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1157		1681
1158	=cut	1682	=cut
1159		1683
1160	sub ext_reply($$%) {	1684	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1162		1686
1163	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1688	}
1167		1689
1168	=item $player->ext_event ($type, %msg)	1690	=item $player->ext_msg ($type, @msg)
1169		1691
1170	Sends an ext event to the client.	1692	Sends an ext event to the client.
1171		1693
1172	=cut	1694	=cut
1173		1695
1174	sub ext_event($$%) {	1696	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1697	my ($self, $type, @msg) = @_;
1176		1698
1177	$self->ns->ext_event ($type, %msg);	1699	$self->ns->ext_msg ($type, @msg);
1178	}	1700	}
1179		1701
1180	=head3 cf::region	1702	=head3 cf::region
1181		1703
1182	=over 4	1704	=over 4
…		…
1185		1707
1186	package cf::region;	1708	package cf::region;
1187		1709
1188	=item cf::region::find_by_path $path	1710	=item cf::region::find_by_path $path
1189		1711
1190	Tries to decuce the probable region for a map knowing only its path.	1712	Tries to decuce the likely region for a map knowing only its path.
1191		1713
1192	=cut	1714	=cut
1193		1715
1194	sub find_by_path($) {	1716	sub find_by_path($) {
1195	my ($path) = @_;	1717	my ($path) = @_;
1196		1718
1197	my ($match, $specificity);	1719	my ($match, $specificity);
1198		1720
1199	for my $region (list) {	1721	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1722	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1723	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1724	if $region->specificity > $specificity;
1203	}	1725	}
1204	}	1726	}
1205		1727
…		…
1226	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1228		1750
1229	sub generate_random_map {	1751	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1755
1231	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1757	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1270		1795
1271	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1272	local $self->{path};	1797	local $self->{path};
1273	local $self->{load_path};	1798	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1799
1277	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1278	}	1801	}
1279		1802
1280	sub normalise {	1803	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1328	return $self;	1851	return $self;
1329	}	1852	}
1330	}	1853	}
1331		1854
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1856	()
1334	}	1857	}
1335		1858
1336	sub init {	1859	sub init {
1337	my ($self) = @_;	1860	my ($self) = @_;
…		…
1359		1882
1360	# the temporary/swap location	1883	# the temporary/swap location
1361	sub save_path {	1884	sub save_path {
1362	my ($self) = @_;	1885	my ($self) = @_;
1363		1886
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1888	"$TMPDIR/$path.map"
1366	}	1889	}
1367		1890
1368	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1369	sub uniq_path {	1892	sub uniq_path {
1370	my ($self) = @_;	1893	my ($self) = @_;
1371		1894
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1896	"$UNIQUEDIR/$path"
1374	}	1897	}
1375		1898
1376	# and all this just because we cannot iterate over	1899	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1900	my ($self) = @_;
1380		1901
1381	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1383	}	1905	}
1384		1906
1385	sub unlink_save {	1907	sub unlink_save {
1386	my ($self) = @_;	1908	my ($self) = @_;
1387		1909
…		…
1392		1914
1393	sub load_header_from($) {	1915	sub load_header_from($) {
1394	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1395		1917
1396	utf8::encode $path;	1918	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1920	or return;
		1921
		1922	$self->_load_header ($f)
		1923	or return;
		1924
		1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
1402		1927
1403	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1404		1929
1405	1	1930	1
1406	}	1931	}
…		…
1445	$self->load_header_orig	1970	$self->load_header_orig
1446	or return;	1971	or return;
1447	$self->prepare_orig;	1972	$self->prepare_orig;
1448	}	1973	}
1449		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
1450	$self->default_region (cf::region::find_by_path $self->{path})	1978	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1979	unless $self->default_region;
1452		1980
1453	1	1981	1
1454	}	1982	}
…		…
1457	sub find {	1985	sub find {
1458	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1459		1987
1460	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1461		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1992
1464	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1467	or return;	1995	or return;
1468		1996
1469	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1470		1998
1471	$map->load_header	1999	$map->load_header
1472	or return;	2000	or return;
1473		2001
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1477	$map->reset;	2007	$map->reset;
1478	undef $guard;
1479	return find $path;	2008	return find $path;
1480	}	2009	}
1481		2010
1482	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1483	}	2012	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1493		2022
1494	my $path = $self->{path};	2023	my $path = $self->{path};
1495		2024
1496	{	2025	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1498		2027
		2028	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2030
1501	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1502		2032
1503	$self->alloc;	2033	$self->alloc;
1504		2034
1505	$self->pre_load;	2035	$self->pre_load;
1506	Coro::cede;	2036	cf::cede_to_tick;
1507		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2040	$self->_load_objects ($f)
1509	or return;	2041	or return;
1510		2042
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1512	if delete $self->{load_original};	2044	if delete $self->{load_original};
1513		2045
1514	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2047	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2050	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1519	}	2054	}
1520	}	2055	}
1521		2056
1522	Coro::cede;	2057	$f->resolve_delayed_derefs;
		2058
		2059	cf::cede_to_tick;
1523	# now do the right thing for maps	2060	# now do the right thing for maps
1524	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2063	unless $self->difficulty;
1527	Coro::cede;	2064	cf::cede_to_tick;
1528		2065
1529	unless ($self->{deny_activate}) {	2066	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2067	$self->decay_objects;
1531	$self->fix_auto_apply;	2068	$self->fix_auto_apply;
1532	$self->update_buttons;	2069	$self->update_buttons;
1533	Coro::cede;	2070	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2071	$self->activate;
1537	}	2072	}
1538		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2078	}
1541		2079
1542	$self->post_load;	2080	$self->post_load;
1543	}	2081	}
1544		2082
…		…
1546	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1547		2085
1548	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2087	if $self->per_player;
1550		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1551	$self	2092	$self
1552	}	2093	}
1553		2094
1554	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2096	sub load_neighbours {
1556	my ($map) = @_;	2097	my ($map) = @_;
1557		2098
1558	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1559		2100
1560	for (0 .. 3) {	2101	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1562	or next;	2103	or next;
1563	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1564	or next;	2105	or next;
1565	$neigh->load;	2106	$neigh->load;
1566		2107
		2108	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2111	}
1570		2112
1571	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1573	or next;	2116	or next;
1574	$neigh->load;	2117	$neigh->load;
1575	}	2118	}
1576	}	2119	}
1577		2120
…		…
1582	}	2125	}
1583		2126
1584	sub do_load_sync {	2127	sub do_load_sync {
1585	my ($map) = @_;	2128	my ($map) = @_;
1586		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1587	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1588	}	2134	}
1589		2135
1590	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1592		2138
1593	sub find_async {	2139	sub find_async {
1594	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1595		2141
1596	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1597		2143
1598	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2146	}
1601		2147
1602	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1603	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1604	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2155	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2156	$map->load if $v;
		2157	}
1609		2158
1610	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1611	}	2160	}
1612	}	2161	}
1613	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1614	};	2163	};
1615	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2167	}
1619		2168
1620	sub save {	2169	sub save {
1621	my ($self) = @_;	2170	my ($self) = @_;
1622		2171
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2173
1625	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1626		2175
1627	return unless $self->dirty;	2176	return unless $self->dirty;
1628		2177
…		…
1634	return if $self->{deny_save};	2183	return if $self->{deny_save};
1635		2184
1636	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1637		2186
1638	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1640	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1641		2193
1642	if ($uniq) {	2194	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2197	} else {
…		…
1651	my ($self) = @_;	2203	my ($self) = @_;
1652		2204
1653	# save first because save cedes	2205	# save first because save cedes
1654	$self->save;	2206	$self->save;
1655		2207
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2209
1658	return if $self->players;	2210	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2212	return if $self->{deny_save};
1661		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2218	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2219	}
1665		2220
1666	sub reset_at {	2221	sub reset_at {
1667	my ($self) = @_;	2222	my ($self) = @_;
1668		2223
1669	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1672		2226
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2229
…		…
1686	my ($self) = @_;	2240	my ($self) = @_;
1687		2241
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2243
1690	return if $self->players;	2244	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2245
1693	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1694		2247
1695	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1696		2249
1697	# need to save uniques path	2250	# need to save uniques path
1698	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2255	if $uniq;
1703	}	2256	}
1704		2257
1705	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1706		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2262	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2263
1711	$self->unlink_save;	2264	$self->unlink_save;
1712	$self->destroy;	2265	$self->destroy;
1713	}	2266	}
1714		2267
1715	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1716		2269
1717	sub nuke {	2270	sub nuke {
1718	my ($self) = @_;	2271	my ($self) = @_;
1719		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1720	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1721		2277
1722	$self->unlink_save;	2278	$self->unlink_save;
1723		2279
1724	bless $self, "cf::map";	2280	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2285
1730	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1731		2288
1732	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
		2290	}
		2291
		2292	=item $maps = cf::map::tmp_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
		2308	}
		2309
		2310	=item $maps = cf::map::random_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
		2314
		2315	=cut
		2316
		2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
1733	}	2326	}
1734		2327
1735	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1736		2329
1737	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2331	instantiated unique items. May block.
1739		2332
1740	=cut	2333	=cut
1741		2334
1742	sub unique_maps() {	2335	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2336	[
1744	or return;	2337	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2338	utf8::decode $_;
1750	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2341	? ()
1753	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2344	]
1755
1756	\@paths
1757	}	2345	}
1758		2346
1759	package cf;	2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
		2374	}
		2375
		2376	\@maps
		2377	}
1760		2378
1761	=back	2379	=back
1762		2380
1763	=head3 cf::object	2381	=head3 cf::object
1764		2382
…		…
1768		2386
1769	=over 4	2387	=over 4
1770		2388
1771	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1772		2390
1773	Returns the inventory of the object _and_ their inventories, recursively.	2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
1774		2393
1775	=cut	2394	=cut
1776		2395
1777	sub inv_recursive_;	2396	sub inv_recursive_;
1778	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1781		2400
1782	sub inv_recursive {	2401	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1784	}	2403	}
1785		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
		2431	}
		2432
1786	package cf;	2433	package cf;
1787		2434
1788	=back	2435	=back
1789		2436
1790	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1799		2446
1800	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1801		2462
1802	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2464	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1807		2468
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2470
1810	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1812	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1815	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1816	}	2496	}
1817		2497
1818	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1819		2499
1820	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1833		2513
1834	=item $player_object->enter_link	2514	=item $player_object->enter_link
1835		2515
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2517
1838	The player should be reasonably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
1840		2522
1841	Will never block.	2523	Will never block.
1842		2524
1843	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1844		2526
…		…
1867	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1868		2550
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2552
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1873		2555
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2557	}
1876		2558
1877	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1879		2563
1880	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1881		2565
1882	unless ($map) {	2566	unless ($map) {
1883	# restore original map position	2567	# restore original map position
…		…
1894	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1895	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1896		2580
1897	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1898	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1899	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1900		2584
1901	$map->load;	2585	$map->load;
1902	$map->load_diag;	2586	$map->load_neighbours;
1903		2587
1904	return unless $self->contr->active;	2588	return unless $self->contr->active;
1905	$self->activate_recursive;
1906		2589
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1909	}
1910		2592
1911	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1912	on_logout => sub {	2594	$self->activate_recursive;
1913	my ($pl) = @_;	2595	}
1914		2596
1915	# abort map switching before logout	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1916	if ($pl->ob->{_link_pos}) {
1917	cf::sync_job {
1918	$pl->ob->leave_link
1919	};
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2598
1925	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1926	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1927	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1928	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1929	(async {	2603	be called at the end of this process.
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942		2604
1943	=item $player_object->goto ($path, $x, $y)	2605	Note that $check will be called with a potentially non-loaded map, so if
		2606	it needs a loaded map it has to call C<< ->load >>.
1944		2607
1945	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1946		2611
1947	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2617
1950	$self->enter_link;	2618	$self->enter_link;
1951		2619
1952	(async {	2620	(async {
		2621	$Coro::current->{desc} = "player::goto $path $x $y";
		2622
		2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
1953	my $map = eval {	2642	my $map = eval {
1954	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
		2647	$map = $check->($map) if $check && $map;
		2648	} else {
		2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
		2651
1956	$map	2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
1957	} or	2658	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1961	})->prio (1);	2666	})->prio (1);
1962	}	2667	}
1963		2668
1964	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1965		2670
…		…
1985	}	2690	}
1986		2691
1987	sub prepare_random_map {	2692	sub prepare_random_map {
1988	my ($exit) = @_;	2693	my ($exit) = @_;
1989		2694
1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1991
1992	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
1993	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
1994	# that depends on the exit object	2697	# that depends on the exit object
1995		2698
1996	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
1998	if ($exit->map) {	2701	if ($exit->map) {
1999	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
2000	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
2001	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
2002	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
2003	}	2708	}
2004		2709
2005	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
2006		2711
2007	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2008	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
2009	my $meta = "$RANDOMDIR/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
2010		2715
2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2012	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
2013	undef $fh;	2718	undef $fh;
2014	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
2015		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
2016	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
2017	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
2018	}	2727	}
2019	}	2728	}
2020		2729
2021	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
2022	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
2023		2732
2024	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
2025		2734
2026	if ($exit->slaying eq "/!") {
2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
2028	# the problem is that $exit might not survive long enough
2029	# so it needs to be done right now, right here
2030	cf::sync_job { prepare_random_map $exit };
2031	}
2032
2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2034	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;
2036
2037	$self->enter_link;	2735	$self->enter_link;
2038		2736
2039	(async {	2737	(async {
2040	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
2041	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
		2747	prepare_random_map $exit
		2748	if $exit->slaying eq "/!";
		2749	}
		2750
		2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
		2754
2042	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
2043		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
2044	1;	2761	1
2045	}) {	2762	}) {
2046	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
2047	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
2048	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
2049	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
2050		2767
2051	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2070		2787
2071	utf8::encode $text;	2788	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073	}	2790	}
2074		2791
		2792	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2793
		2794	Send a drawinfo or msg packet to the client, formatting the msg for the
		2795	client if neccessary. C<$type> should be a string identifying the type of
		2796	the message, with C<log> being the default. If C<$color> is negative, suppress
		2797	the message unless the client supports the msg packet.
		2798
		2799	=cut
		2800
		2801	# non-persistent channels (usually the info channel)
		2802	our %CHANNEL = (
		2803	"c/motd" => {
		2804	id => "infobox",
		2805	title => "MOTD",
		2806	reply => undef,
		2807	tooltip => "The message of the day",
		2808	},
		2809	"c/identify" => {
		2810	id => "infobox",
		2811	title => "Identify",
		2812	reply => undef,
		2813	tooltip => "Items recently identified",
		2814	},
		2815	"c/examine" => {
		2816	id => "infobox",
		2817	title => "Examine",
		2818	reply => undef,
		2819	tooltip => "Signs and other items you examined",
		2820	},
		2821	"c/shopinfo" => {
		2822	id => "infobox",
		2823	title => "Shop Info",
		2824	reply => undef,
		2825	tooltip => "What your bargaining skill tells you about the shop",
		2826	},
		2827	"c/book" => {
		2828	id => "infobox",
		2829	title => "Book",
		2830	reply => undef,
		2831	tooltip => "The contents of a note or book",
		2832	},
		2833	"c/lookat" => {
		2834	id => "infobox",
		2835	title => "Look",
		2836	reply => undef,
		2837	tooltip => "What you saw there",
		2838	},
		2839	"c/who" => {
		2840	id => "infobox",
		2841	title => "Players",
		2842	reply => undef,
		2843	tooltip => "Shows players who are currently online",
		2844	},
		2845	"c/body" => {
		2846	id => "infobox",
		2847	title => "Body Parts",
		2848	reply => undef,
		2849	tooltip => "Shows which body parts you posess and are available",
		2850	},
		2851	"c/statistics" => {
		2852	id => "infobox",
		2853	title => "Statistics",
		2854	reply => undef,
		2855	tooltip => "Shows your primary statistics",
		2856	},
		2857	"c/skills" => {
		2858	id => "infobox",
		2859	title => "Skills",
		2860	reply => undef,
		2861	tooltip => "Shows your experience per skill and item power",
		2862	},
		2863	"c/shopitems" => {
		2864	id => "infobox",
		2865	title => "Shop Items",
		2866	reply => undef,
		2867	tooltip => "Shows the items currently for sale in this shop",
		2868	},
		2869	"c/resistances" => {
		2870	id => "infobox",
		2871	title => "Resistances",
		2872	reply => undef,
		2873	tooltip => "Shows your resistances",
		2874	},
		2875	"c/pets" => {
		2876	id => "infobox",
		2877	title => "Pets",
		2878	reply => undef,
		2879	tooltip => "Shows information abotu your pets/a specific pet",
		2880	},
		2881	"c/perceiveself" => {
		2882	id => "infobox",
		2883	title => "Perceive Self",
		2884	reply => undef,
		2885	tooltip => "You gained detailed knowledge about yourself",
		2886	},
		2887	"c/uptime" => {
		2888	id => "infobox",
		2889	title => "Uptime",
		2890	reply => undef,
		2891	tooltip => "How long the server has been running since last restart",
		2892	},
		2893	"c/mapinfo" => {
		2894	id => "infobox",
		2895	title => "Map Info",
		2896	reply => undef,
		2897	tooltip => "Information related to the maps",
		2898	},
		2899	"c/party" => {
		2900	id => "party",
		2901	title => "Party",
		2902	reply => "gsay ",
		2903	tooltip => "Messages and chat related to your party",
		2904	},
		2905	"c/death" => {
		2906	id => "death",
		2907	title => "Death",
		2908	reply => undef,
		2909	tooltip => "Reason for and more info about your most recent death",
		2910	},
		2911	"c/say" => $SAY_CHANNEL,
		2912	"c/chat" => $CHAT_CHANNEL,
		2913	);
		2914
		2915	sub cf::client::send_msg {
		2916	my ($self, $channel, $msg, $color, @extra) = @_;
		2917
		2918	$msg = $self->pl->expand_cfpod ($msg)
		2919	unless $color & cf::NDI_VERBATIM;
		2920
		2921	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2922
		2923	# check predefined channels, for the benefit of C
		2924	if ($CHANNEL{$channel}) {
		2925	$channel = $CHANNEL{$channel};
		2926
		2927	$self->ext_msg (channel_info => $channel);
		2928	$channel = $channel->{id};
		2929
		2930	} elsif (ref $channel) {
		2931	# send meta info to client, if not yet sent
		2932	unless (exists $self->{channel}{$channel->{id}}) {
		2933	$self->{channel}{$channel->{id}} = $channel;
		2934	$self->ext_msg (channel_info => $channel);
		2935	}
		2936
		2937	$channel = $channel->{id};
		2938	}
		2939
		2940	return unless @extra || length $msg;
		2941
		2942	# default colour, mask it out
		2943	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2944	if $color & cf::NDI_DEF;
		2945
		2946	my $pkt = "msg "
		2947	. $self->{json_coder}->encode (
		2948	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2949	);
		2950
		2951	# try lzf for large packets
		2952	$pkt = "lzf " . Compress::LZF::compress $pkt
		2953	if 1024 <= length $pkt and $self->{can_lzf};
		2954
		2955	# split very large packets
		2956	if (8192 < length $pkt and $self->{can_lzf}) {
		2957	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2958	$pkt = "frag";
		2959	}
		2960
		2961	$self->send_packet ($pkt);
		2962	}
		2963
2075	=item $client->ext_event ($type, %msg)	2964	=item $client->ext_msg ($type, @msg)
2076		2965
2077	Sends an exti event to the client.	2966	Sends an ext event to the client.
2078		2967
2079	=cut	2968	=cut
2080		2969
2081	sub cf::client::ext_event($$%) {	2970	sub cf::client::ext_msg($$@) {
2082	my ($self, $type, %msg) = @_;	2971	my ($self, $type, @msg) = @_;
2083		2972
		2973	if ($self->extcmd == 2) {
		2974	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2975	} elsif ($self->extcmd == 1) { # TODO: remove
2084	$msg{msgtype} = "event_$type";	2976	push @msg, msgtype => "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	2977	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2978	}
		2979	}
		2980
		2981	=item $client->ext_reply ($msgid, @msg)
		2982
		2983	Sends an ext reply to the client.
		2984
		2985	=cut
		2986
		2987	sub cf::client::ext_reply($$@) {
		2988	my ($self, $id, @msg) = @_;
		2989
		2990	if ($self->extcmd == 2) {
		2991	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2992	} elsif ($self->extcmd == 1) {
		2993	#TODO: version 1, remove
		2994	unshift @msg, msgtype => "reply", msgid => $id;
		2995	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2996	}
2086	}	2997	}
2087		2998
2088	=item $success = $client->query ($flags, "text", \&cb)	2999	=item $success = $client->query ($flags, "text", \&cb)
2089		3000
2090	Queues a query to the client, calling the given callback with	3001	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3002	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3003	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		3004
2094	Queries can fail, so check the return code. Or don't, as queries will become	3005	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	3006	become reliable at some point in the future.
2096		3007
2097	=cut	3008	=cut
2098		3009
2099	sub cf::client::query {	3010	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	3011	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	3019	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3020	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		3021
2111	$self->send_packet ($self->{query_queue}[0][0])	3022	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	3023	if @{ $self->{query_queue} } == 1;
		3024
		3025	1
2113	}	3026	}
2114		3027
2115	cf::client->attach (	3028	cf::client->attach (
		3029	on_connect => sub {
		3030	my ($ns) = @_;
		3031
		3032	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3033	},
2116	on_reply => sub {	3034	on_reply => sub {
2117	my ($ns, $msg) = @_;	3035	my ($ns, $msg) = @_;
2118		3036
2119	# this weird shuffling is so that direct followup queries	3037	# this weird shuffling is so that direct followup queries
2120	# get handled first	3038	# get handled first
…		…
2132	} else {	3050	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3051	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	3052	}
2135	}	3053	}
2136	},	3054	},
		3055	on_exticmd => sub {
		3056	my ($ns, $buf) = @_;
		3057
		3058	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3059
		3060	if (ref $msg) {
		3061	my ($type, $reply, @payload) =
		3062	"ARRAY" eq ref $msg
		3063	? @$msg
		3064	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3065
		3066	my @reply;
		3067
		3068	if (my $cb = $EXTICMD{$type}) {
		3069	@reply = $cb->($ns, @payload);
		3070	}
		3071
		3072	$ns->ext_reply ($reply, @reply)
		3073	if $reply;
		3074
		3075	} else {
		3076	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3077	}
		3078
		3079	cf::override;
		3080	},
2137	);	3081	);
2138		3082
2139	=item $client->async (\&cb)	3083	=item $client->async (\&cb)
2140		3084
2141	Create a new coroutine, running the specified callback. The coroutine will	3085	Create a new coroutine, running the specified callback. The coroutine will
…		…
2182	our $safe = new Safe "safe";	3126	our $safe = new Safe "safe";
2183	our $safe_hole = new Safe::Hole;	3127	our $safe_hole = new Safe::Hole;
2184		3128
2185	$SIG{FPE} = 'IGNORE';	3129	$SIG{FPE} = 'IGNORE';
2186		3130
2187	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3131	$safe->permit_only (Opcode::opset qw(
		3132	:base_core :base_mem :base_orig :base_math
		3133	grepstart grepwhile mapstart mapwhile
		3134	sort time
		3135	));
2188		3136
2189	# here we export the classes and methods available to script code	3137	# here we export the classes and methods available to script code
2190		3138
2191	=pod	3139	=pod
2192		3140
2193	The following functions and methods are available within a safe environment:	3141	The following functions and methods are available within a safe environment:
2194		3142
2195	cf::object contr pay_amount pay_player map	3143	cf::object
		3144	contr pay_amount pay_player map x y force_find force_add destroy
		3145	insert remove name archname title slaying race decrease split
		3146	value
		3147
2196	cf::object::player player	3148	cf::object::player
2197	cf::player peaceful	3149	player
2198	cf::map trigger	3150
		3151	cf::player
		3152	peaceful
		3153
		3154	cf::map
		3155	trigger
2199		3156
2200	=cut	3157	=cut
2201		3158
2202	for (	3159	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	3160	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3161	insert remove inv nrof name archname title slaying race
		3162	decrease split destroy change_exp value msg lore send_msg)],
2204	["cf::object::player" => qw(player)],	3163	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	3164	["cf::player" => qw(peaceful send_msg)],
2206	["cf::map" => qw(trigger)],	3165	["cf::map" => qw(trigger)],
2207	) {	3166	) {
2208	no strict 'refs';	3167	no strict 'refs';
2209	my ($pkg, @funs) = @$_;	3168	my ($pkg, @funs) = @$_;
2210	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3169	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2227	my ($code, %vars) = @_;	3186	my ($code, %vars) = @_;
2228		3187
2229	my $qcode = $code;	3188	my $qcode = $code;
2230	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3189	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2231	$qcode =~ s/\n/\\n/g;	3190	$qcode =~ s/\n/\\n/g;
		3191
		3192	%vars = (_dummy => 0) unless %vars;
2232		3193
2233	local $_;	3194	local $_;
2234	local @safe::cf::_safe_eval_args = values %vars;	3195	local @safe::cf::_safe_eval_args = values %vars;
2235		3196
2236	my $eval =	3197	my $eval =
…		…
2279	=back	3240	=back
2280		3241
2281	=cut	3242	=cut
2282		3243
2283	#############################################################################	3244	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	reset_signals;
2441	local $SIG{__WARN__};
2442	local $SIG{__DIE__};
2443	eval {
2444	close $fh1;
2445
2446	my @res = eval { $cb->(@args) };
2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2448	};
2449
2450	warn $@ if $@;
2451	_exit 0;
2452	}
2453	}
2454
2455
2456
2457	#############################################################################
2458	# the server's init and main functions	3245	# the server's init and main functions
2459		3246
2460	sub load_facedata($) {	3247	sub load_facedata($) {
2461	my ($path) = @_;	3248	my ($path) = @_;
		3249
		3250	# HACK to clear player env face cache, we need some signal framework
		3251	# for this (global event?)
		3252	%ext::player_env::MUSIC_FACE_CACHE = ();
		3253
		3254	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2462		3255
2463	warn "loading facedata from $path\n";	3256	warn "loading facedata from $path\n";
2464		3257
2465	my $facedata;	3258	my $facedata;
2466	0 < aio_load $path, $facedata	3259	0 < aio_load $path, $facedata
…		…
2469	$facedata = Coro::Storable::thaw $facedata;	3262	$facedata = Coro::Storable::thaw $facedata;
2470		3263
2471	$facedata->{version} == 2	3264	$facedata->{version} == 2
2472	or cf::cleanup "$path: version mismatch, cannot proceed.";	3265	or cf::cleanup "$path: version mismatch, cannot proceed.";
2473		3266
		3267	# patch in the exptable
		3268	$facedata->{resource}{"res/exp_table"} = {
		3269	type => FT_RSRC,
		3270	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3271	};
		3272	cf::cede_to_tick;
		3273
2474	{	3274	{
2475	my $faces = $facedata->{faceinfo};	3275	my $faces = $facedata->{faceinfo};
2476		3276
2477	while (my ($face, $info) = each %$faces) {	3277	while (my ($face, $info) = each %$faces) {
2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3278	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3279
2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3280	cf::face::set_visibility $idx, $info->{visibility};
		3281	cf::face::set_magicmap $idx, $info->{magicmap};
2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3282	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3283	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2482	Coro::cede;	3284
		3285	cf::cede_to_tick;
2483	}	3286	}
2484		3287
2485	while (my ($face, $info) = each %$faces) {	3288	while (my ($face, $info) = each %$faces) {
2486	next unless $info->{smooth};	3289	next unless $info->{smooth};
		3290
2487	my $idx = cf::face::find $face	3291	my $idx = cf::face::find $face
2488	or next;	3292	or next;
		3293
2489	if (my $smooth = cf::face::find $info->{smooth}) {	3294	if (my $smooth = cf::face::find $info->{smooth}) {
		3295	cf::face::set_smooth $idx, $smooth;
2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3296	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2491	} else {	3297	} else {
2492	warn "smooth face '$info->{smooth}' not found for face '$face'";	3298	warn "smooth face '$info->{smooth}' not found for face '$face'";
2493	}	3299	}
2494	Coro::cede;	3300
		3301	cf::cede_to_tick;
2495	}	3302	}
2496	}	3303	}
2497		3304
2498	{	3305	{
2499	my $anims = $facedata->{animinfo};	3306	my $anims = $facedata->{animinfo};
2500		3307
2501	while (my ($anim, $info) = each %$anims) {	3308	while (my ($anim, $info) = each %$anims) {
2502	cf::anim::set $anim, $info->{frames}, $info->{facings};	3309	cf::anim::set $anim, $info->{frames}, $info->{facings};
2503	Coro::cede;	3310	cf::cede_to_tick;
2504	}	3311	}
2505		3312
2506	cf::anim::invalidate_all; # d'oh	3313	cf::anim::invalidate_all; # d'oh
2507	}	3314	}
2508		3315
		3316	{
		3317	# TODO: for gcfclient pleasure, we should give resources
		3318	# that gcfclient doesn't grok a >10000 face index.
		3319	my $res = $facedata->{resource};
		3320
		3321	while (my ($name, $info) = each %$res) {
		3322	if (defined $info->{type}) {
		3323	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3324	my $data;
		3325
		3326	if ($info->{type} & 1) {
		3327	# prepend meta info
		3328
		3329	my $meta = $enc->encode ({
		3330	name => $name,
		3331	%{ $info->{meta} || {} },
		3332	});
		3333
		3334	$data = pack "(w/a*)*", $meta, $info->{data};
		3335	} else {
		3336	$data = $info->{data};
		3337	}
		3338
		3339	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3340	cf::face::set_type $idx, $info->{type};
		3341	} else {
		3342	$RESOURCE{$name} = $info;
		3343	}
		3344
		3345	cf::cede_to_tick;
		3346	}
		3347	}
		3348
		3349	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3350
2509	1	3351	1
2510	}	3352	}
2511		3353
		3354	cf::global->attach (on_resource_update => sub {
		3355	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3356	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3357
		3358	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3359	my $sound = $soundconf->{compat}[$_]
		3360	or next;
		3361
		3362	my $face = cf::face::find "sound/$sound->[1]";
		3363	cf::sound::set $sound->[0] => $face;
		3364	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3365	}
		3366
		3367	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3368	my $face = cf::face::find "sound/$v";
		3369	cf::sound::set $k => $face;
		3370	}
		3371	}
		3372	});
		3373
		3374	register_exticmd fx_want => sub {
		3375	my ($ns, $want) = @_;
		3376
		3377	while (my ($k, $v) = each %$want) {
		3378	$ns->fx_want ($k, $v);
		3379	}
		3380	};
		3381
		3382	sub load_resource_file($) {
		3383	my $guard = lock_acquire "load_resource_file";
		3384
		3385	my $status = load_resource_file_ $_[0];
		3386	get_slot 0.1, 100;
		3387	cf::arch::commit_load;
		3388
		3389	$status
		3390	}
		3391
2512	sub reload_regions {	3392	sub reload_regions {
		3393	# HACK to clear player env face cache, we need some signal framework
		3394	# for this (global event?)
		3395	%ext::player_env::MUSIC_FACE_CACHE = ();
		3396
2513	load_resource_file "$MAPDIR/regions"	3397	load_resource_file "$MAPDIR/regions"
2514	or die "unable to load regions file\n";	3398	or die "unable to load regions file\n";
		3399
		3400	for (cf::region::list) {
		3401	$_->{match} = qr/$_->{match}/
		3402	if exists $_->{match};
		3403	}
2515	}	3404	}
2516		3405
2517	sub reload_facedata {	3406	sub reload_facedata {
2518	load_facedata "$DATADIR/facedata"	3407	load_facedata "$DATADIR/facedata"
2519	or die "unable to load facedata\n";	3408	or die "unable to load facedata\n";
…		…
2530	}	3419	}
2531		3420
2532	sub reload_resources {	3421	sub reload_resources {
2533	warn "reloading resource files...\n";	3422	warn "reloading resource files...\n";
2534		3423
2535	reload_regions;
2536	reload_facedata;	3424	reload_facedata;
2537	reload_archetypes;	3425	reload_archetypes;
		3426	reload_regions;
2538	reload_treasures;	3427	reload_treasures;
2539		3428
2540	warn "finished reloading resource files\n";	3429	warn "finished reloading resource files\n";
2541	}	3430	}
2542		3431
2543	sub init {	3432	sub reload_config {
2544	reload_resources;	3433	warn "reloading config file...\n";
2545	}
2546		3434
2547	sub cfg_load {
2548	open my $fh, "<:utf8", "$CONFDIR/config"	3435	open my $fh, "<:utf8", "$CONFDIR/config"
2549	or return;	3436	or return;
2550		3437
2551	local $/;	3438	local $/;
2552	*CFG = YAML::Syck::Load <$fh>;	3439	*CFG = YAML::XS::Load scalar <$fh>;
2553		3440
2554	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3441	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2555		3442
2556	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3443	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2557	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3444	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2561	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3448	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2562	and die "WARNING: m(un)lockall failed: $!\n";	3449	and die "WARNING: m(un)lockall failed: $!\n";
2563	};	3450	};
2564	warn $@ if $@;	3451	warn $@ if $@;
2565	}	3452	}
		3453
		3454	warn "finished reloading resource files\n";
		3455	}
		3456
		3457	sub pidfile() {
		3458	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3459	or die "$PIDFILE: $!";
		3460	flock $fh, &Fcntl::LOCK_EX
		3461	or die "$PIDFILE: flock: $!";
		3462	$fh
		3463	}
		3464
		3465	# make sure only one server instance is running at any one time
		3466	sub atomic {
		3467	my $fh = pidfile;
		3468
		3469	my $pid = <$fh>;
		3470	kill 9, $pid if $pid > 0;
		3471
		3472	seek $fh, 0, 0;
		3473	print $fh $$;
		3474	}
		3475
		3476	sub main_loop {
		3477	warn "EV::loop starting\n";
		3478	if (1) {
		3479	EV::loop;
		3480	}
		3481	warn "EV::loop returned\n";
		3482	goto &main_loop unless $REALLY_UNLOOP;
2566	}	3483	}
2567		3484
2568	sub main {	3485	sub main {
		3486	cf::init_globals; # initialise logging
		3487
		3488	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3489	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3490	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3491	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3492
		3493	cf::init_experience;
		3494	cf::init_anim;
		3495	cf::init_attackmess;
		3496	cf::init_dynamic;
		3497
		3498	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3499
2569	# we must not ever block the main coroutine	3500	# we must not ever block the main coroutine
2570	local $Coro::idle = sub {	3501	local $Coro::idle = sub {
2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3502	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2572	(async {	3503	(async {
2573	Event::one_event;	3504	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3505	EV::loop EV::LOOP_ONESHOT;
2574	})->prio (Coro::PRIO_MAX);	3506	})->prio (Coro::PRIO_MAX);
2575	};	3507	};
2576		3508
2577	cfg_load;	3509	evthread_start IO::AIO::poll_fileno;
		3510
		3511	cf::sync_job {
		3512	reload_resources;
		3513	reload_config;
2578	db_init;	3514	db_init;
		3515
		3516	cf::load_settings;
		3517	cf::load_materials;
		3518	cf::init_uuid;
		3519	cf::init_signals;
		3520	cf::init_commands;
		3521	cf::init_skills;
		3522
		3523	cf::init_beforeplay;
		3524
		3525	atomic;
		3526
2579	load_extensions;	3527	load_extensions;
2580		3528
2581	$TICK_WATCHER->start;	3529	utime time, time, $RUNTIMEFILE;
2582	Event::loop;	3530
		3531	# no (long-running) fork's whatsoever before this point(!)
		3532	use POSIX ();
		3533	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3534
		3535	(pop @POST_INIT)->(0) while @POST_INIT;
		3536	};
		3537
		3538	main_loop;
2583	}	3539	}
2584		3540
2585	#############################################################################	3541	#############################################################################
2586	# initialisation and cleanup	3542	# initialisation and cleanup
2587		3543
2588	# install some emergency cleanup handlers	3544	# install some emergency cleanup handlers
2589	BEGIN {	3545	BEGIN {
		3546	our %SIGWATCHER = ();
2590	for my $signal (qw(INT HUP TERM)) {	3547	for my $signal (qw(INT HUP TERM)) {
2591	Event->signal (	3548	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2592	reentrant => 0,
2593	data => WF_AUTOCANCEL,
2594	signal => $signal,
2595	prio => 0,
2596	cb => sub {
2597	cf::cleanup "SIG$signal";	3549	cf::cleanup "SIG$signal";
2598	},
2599	);	3550	};
		3551	}
		3552	}
		3553
		3554	sub write_runtime_sync {
		3555	# first touch the runtime file to show we are still running:
		3556	# the fsync below can take a very very long time.
		3557
		3558	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3559
		3560	my $guard = cf::lock_acquire "write_runtime";
		3561
		3562	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3563	or return;
		3564
		3565	my $value = $cf::RUNTIME + 90 + 10;
		3566	# 10 is the runtime save interval, for a monotonic clock
		3567	# 60 allows for the watchdog to kill the server.
		3568
		3569	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3570	and return;
		3571
		3572	# always fsync - this file is important
		3573	aio_fsync $fh
		3574	and return;
		3575
		3576	# touch it again to show we are up-to-date
		3577	aio_utime $fh, undef, undef;
		3578
		3579	close $fh
		3580	or return;
		3581
		3582	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3583	and return;
		3584
		3585	warn "runtime file written.\n";
		3586
2600	}	3587	1
		3588	}
		3589
		3590	our $uuid_lock;
		3591	our $uuid_skip;
		3592
		3593	sub write_uuid_sync($) {
		3594	$uuid_skip ||= $_[0];
		3595
		3596	return if $uuid_lock;
		3597	local $uuid_lock = 1;
		3598
		3599	my $uuid = "$LOCALDIR/uuid";
		3600
		3601	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3602	or return;
		3603
		3604	my $value = uuid_seq uuid_cur;
		3605
		3606	unless ($value) {
		3607	warn "cowardly refusing to write zero uuid value!\n";
		3608	return;
		3609	}
		3610
		3611	my $value = uuid_str $value + $uuid_skip;
		3612	$uuid_skip = 0;
		3613
		3614	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3615	and return;
		3616
		3617	# always fsync - this file is important
		3618	aio_fsync $fh
		3619	and return;
		3620
		3621	close $fh
		3622	or return;
		3623
		3624	aio_rename "$uuid~", $uuid
		3625	and return;
		3626
		3627	warn "uuid file written ($value).\n";
		3628
		3629	1
		3630
		3631	}
		3632
		3633	sub write_uuid($$) {
		3634	my ($skip, $sync) = @_;
		3635
		3636	$sync ? write_uuid_sync $skip
		3637	: async { write_uuid_sync $skip };
2601	}	3638	}
2602		3639
2603	sub emergency_save() {	3640	sub emergency_save() {
2604	my $freeze_guard = cf::freeze_mainloop;	3641	my $freeze_guard = cf::freeze_mainloop;
2605		3642
2606	warn "enter emergency perl save\n";	3643	warn "emergency_perl_save: enter\n";
2607		3644
2608	cf::sync_job {	3645	cf::sync_job {
		3646	# this is a trade-off: we want to be very quick here, so
		3647	# save all maps without fsync, and later call a global sync
		3648	# (which in turn might be very very slow)
		3649	local $USE_FSYNC = 0;
		3650
2609	# use a peculiar iteration method to avoid tripping on perl	3651	# use a peculiar iteration method to avoid tripping on perl
2610	# refcount bugs in for. also avoids problems with players	3652	# refcount bugs in for. also avoids problems with players
2611	# and maps saved/destroyed asynchronously.	3653	# and maps saved/destroyed asynchronously.
2612	warn "begin emergency player save\n";	3654	warn "emergency_perl_save: begin player save\n";
2613	for my $login (keys %cf::PLAYER) {	3655	for my $login (keys %cf::PLAYER) {
2614	my $pl = $cf::PLAYER{$login} or next;	3656	my $pl = $cf::PLAYER{$login} or next;
2615	$pl->valid or next;	3657	$pl->valid or next;
		3658	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2616	$pl->save;	3659	$pl->save;
2617	}	3660	}
2618	warn "end emergency player save\n";	3661	warn "emergency_perl_save: end player save\n";
2619		3662
2620	warn "begin emergency map save\n";	3663	warn "emergency_perl_save: begin map save\n";
2621	for my $path (keys %cf::MAP) {	3664	for my $path (keys %cf::MAP) {
2622	my $map = $cf::MAP{$path} or next;	3665	my $map = $cf::MAP{$path} or next;
2623	$map->valid or next;	3666	$map->valid or next;
2624	$map->save;	3667	$map->save;
2625	}	3668	}
2626	warn "end emergency map save\n";	3669	warn "emergency_perl_save: end map save\n";
2627		3670
2628	warn "begin emergency database checkpoint\n";	3671	warn "emergency_perl_save: begin database checkpoint\n";
2629	BDB::db_env_txn_checkpoint $DB_ENV;	3672	BDB::db_env_txn_checkpoint $DB_ENV;
2630	warn "end emergency database checkpoint\n";	3673	warn "emergency_perl_save: end database checkpoint\n";
		3674
		3675	warn "emergency_perl_save: begin write uuid\n";
		3676	write_uuid_sync 1;
		3677	warn "emergency_perl_save: end write uuid\n";
2631	};	3678	};
2632		3679
		3680	warn "emergency_perl_save: starting sync()\n";
		3681	IO::AIO::aio_sync sub {
		3682	warn "emergency_perl_save: finished sync()\n";
		3683	};
		3684
2633	warn "leave emergency perl save\n";	3685	warn "emergency_perl_save: leave\n";
2634	}	3686	}
2635		3687
2636	sub post_cleanup {	3688	sub post_cleanup {
2637	my ($make_core) = @_;	3689	my ($make_core) = @_;
2638		3690
2639	warn Carp::longmess "post_cleanup backtrace"	3691	warn Carp::longmess "post_cleanup backtrace"
2640	if $make_core;	3692	if $make_core;
		3693
		3694	my $fh = pidfile;
		3695	unlink $PIDFILE if <$fh> == $$;
		3696	}
		3697
		3698	# a safer delete_package, copied from Symbol
		3699	sub clear_package($) {
		3700	my $pkg = shift;
		3701
		3702	# expand to full symbol table name if needed
		3703	unless ($pkg =~ /^main::.*::$/) {
		3704	$pkg = "main$pkg" if $pkg =~ /^::/;
		3705	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3706	$pkg .= '::' unless $pkg =~ /::$/;
		3707	}
		3708
		3709	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3710	my $stem_symtab = *{$stem}{HASH};
		3711
		3712	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3713	or return;
		3714
		3715	# clear all symbols
		3716	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3717	for my $name (keys %$leaf_symtab) {
		3718	_gv_clear *{"$pkg$name"};
		3719	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3720	}
		3721	warn "cleared package $pkg\n";#d#
2641	}	3722	}
2642		3723
2643	sub do_reload_perl() {	3724	sub do_reload_perl() {
2644	# can/must only be called in main	3725	# can/must only be called in main
2645	if ($Coro::current != $Coro::main) {	3726	if ($Coro::current != $Coro::main) {
2646	warn "can only reload from main coroutine";	3727	warn "can only reload from main coroutine";
2647	return;	3728	return;
2648	}	3729	}
2649		3730
		3731	return if $RELOAD++;
		3732
		3733	my $t1 = EV::time;
		3734
		3735	while ($RELOAD) {
2650	warn "reloading...";	3736	warn "reloading...";
2651		3737
2652	warn "entering sync_job";	3738	warn "entering sync_job";
2653		3739
2654	cf::sync_job {	3740	cf::sync_job {
2655	cf::write_runtime; # external watchdog should not bark	3741	cf::write_runtime_sync; # external watchdog should not bark
2656	cf::emergency_save;	3742	cf::emergency_save;
2657	cf::write_runtime; # external watchdog should not bark	3743	cf::write_runtime_sync; # external watchdog should not bark
2658		3744
2659	warn "syncing database to disk";	3745	warn "syncing database to disk";
2660	BDB::db_env_txn_checkpoint $DB_ENV;	3746	BDB::db_env_txn_checkpoint $DB_ENV;
2661		3747
2662	# if anything goes wrong in here, we should simply crash as we already saved	3748	# if anything goes wrong in here, we should simply crash as we already saved
2663		3749
2664	warn "cancelling all WF_AUTOCANCEL watchers";
2665	for (Event::all_watchers) {
2666	$_->cancel if $_->data & WF_AUTOCANCEL;
2667	}
2668
2669	warn "flushing outstanding aio requests";	3750	warn "flushing outstanding aio requests";
2670	for (;;) {
2671	BDB::flush;
2672	IO::AIO::flush;
2673	Coro::cede;
2674	last unless IO::AIO::nreqs || BDB::nreqs;	3751	while (IO::AIO::nreqs || BDB::nreqs) {
2675	warn "iterate...";	3752	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2676	}
2677
2678	++$RELOAD;
2679
2680	warn "cancelling all extension coros";
2681	$_->cancel for values %EXT_CORO;
2682	%EXT_CORO = ();
2683
2684	warn "removing commands";
2685	%COMMAND = ();
2686
2687	warn "removing ext commands";
2688	%EXTCMD = ();
2689
2690	warn "unloading/nuking all extensions";
2691	for my $pkg (@EXTS) {
2692	warn "... unloading $pkg";
2693
2694	if (my $cb = $pkg->can ("unload")) {
2695	eval {
2696	$cb->($pkg);
2697	1
2698	} or warn "$pkg unloaded, but with errors: $@";
2699	}	3753	}
2700		3754
2701	warn "... nuking $pkg";	3755	warn "cancelling all extension coros";
2702	Symbol::delete_package $pkg;	3756	$_->cancel for values %EXT_CORO;
2703	}	3757	%EXT_CORO = ();
2704		3758
2705	warn "unloading all perl modules loaded from $LIBDIR";	3759	warn "removing commands";
2706	while (my ($k, $v) = each %INC) {	3760	%COMMAND = ();
2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2708		3761
		3762	warn "removing ext/exti commands";
		3763	%EXTCMD = ();
		3764	%EXTICMD = ();
		3765
		3766	warn "unloading/nuking all extensions";
		3767	for my $pkg (@EXTS) {
2709	warn "... unloading $k";	3768	warn "... unloading $pkg";
2710	delete $INC{$k};
2711		3769
2712	$k =~ s/\.pm$//;
2713	$k =~ s/\//::/g;
2714
2715	if (my $cb = $k->can ("unload_module")) {	3770	if (my $cb = $pkg->can ("unload")) {
		3771	eval {
2716	$cb->();	3772	$cb->($pkg);
		3773	1
		3774	} or warn "$pkg unloaded, but with errors: $@";
		3775	}
		3776
		3777	warn "... clearing $pkg";
		3778	clear_package $pkg;
2717	}	3779	}
2718		3780
2719	Symbol::delete_package $k;	3781	warn "unloading all perl modules loaded from $LIBDIR";
		3782	while (my ($k, $v) = each %INC) {
		3783	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3784
		3785	warn "... unloading $k";
		3786	delete $INC{$k};
		3787
		3788	$k =~ s/\.pm$//;
		3789	$k =~ s/\//::/g;
		3790
		3791	if (my $cb = $k->can ("unload_module")) {
		3792	$cb->();
		3793	}
		3794
		3795	clear_package $k;
2720	}	3796	}
2721		3797
2722	warn "getting rid of safe::, as good as possible";	3798	warn "getting rid of safe::, as good as possible";
2723	Symbol::delete_package "safe::$_"	3799	clear_package "safe::$_"
2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3800	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2725		3801
2726	warn "unloading cf.pm \"a bit\"";	3802	warn "unloading cf.pm \"a bit\"";
2727	delete $INC{"cf.pm"};	3803	delete $INC{"cf.pm"};
2728	delete $INC{"cf/pod.pm"};	3804	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2729		3805
2730	# don't, removes xs symbols, too,	3806	# don't, removes xs symbols, too,
2731	# and global variables created in xs	3807	# and global variables created in xs
2732	#Symbol::delete_package __PACKAGE__;	3808	#clear_package __PACKAGE__;
2733		3809
2734	warn "unload completed, starting to reload now";	3810	warn "unload completed, starting to reload now";
2735		3811
2736	warn "reloading cf.pm";	3812	warn "reloading cf.pm";
2737	require cf;	3813	require cf;
2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3814	cf::_connect_to_perl_1;
2739		3815
2740	warn "loading config and database again";	3816	warn "loading config and database again";
2741	cf::cfg_load;	3817	cf::reload_config;
2742		3818
2743	warn "loading extensions";	3819	warn "loading extensions";
2744	cf::load_extensions;	3820	cf::load_extensions;
2745		3821
		3822	if ($REATTACH_ON_RELOAD) {
2746	warn "reattaching attachments to objects/players";	3823	warn "reattaching attachments to objects/players";
2747	_global_reattach; # objects, sockets	3824	_global_reattach; # objects, sockets
2748	warn "reattaching attachments to maps";	3825	warn "reattaching attachments to maps";
2749	reattach $_ for values %MAP;	3826	reattach $_ for values %MAP;
2750	warn "reattaching attachments to players";	3827	warn "reattaching attachments to players";
2751	reattach $_ for values %PLAYER;	3828	reattach $_ for values %PLAYER;
		3829	}
2752		3830
		3831	warn "running post_init jobs";
		3832	(pop @POST_INIT)->(1) while @POST_INIT;
		3833
2753	warn "leaving sync_job";	3834	warn "leaving sync_job";
2754		3835
2755	1	3836	1
2756	} or do {	3837	} or do {
2757	warn $@;	3838	warn $@;
2758	warn "error while reloading, exiting.";	3839	cf::cleanup "error while reloading, exiting.";
2759	exit 1;
2760	};	3840	};
2761		3841
2762	warn "reloaded";	3842	warn "reloaded";
		3843	--$RELOAD;
		3844	}
		3845
		3846	$t1 = EV::time - $t1;
		3847	warn "reload completed in ${t1}s\n";
2763	};	3848	};
2764		3849
2765	our $RELOAD_WATCHER; # used only during reload	3850	our $RELOAD_WATCHER; # used only during reload
2766		3851
2767	sub reload_perl() {	3852	sub reload_perl() {
2768	# doing reload synchronously and two reloads happen back-to-back,	3853	# doing reload synchronously and two reloads happen back-to-back,
2769	# coro crashes during coro_state_free->destroy here.	3854	# coro crashes during coro_state_free->destroy here.
2770		3855
2771	$RELOAD_WATCHER ||= Event->timer (	3856	$RELOAD_WATCHER ||= cf::async {
2772	reentrant => 0,	3857	Coro::AIO::aio_wait cache_extensions;
2773	after => 0,	3858
2774	data => WF_AUTOCANCEL,	3859	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2775	cb => sub {
2776	do_reload_perl;	3860	do_reload_perl;
2777	undef $RELOAD_WATCHER;	3861	undef $RELOAD_WATCHER;
2778	},	3862	};
2779	);	3863	};
2780	}	3864	}
2781		3865
2782	register_command "reload" => sub {	3866	register_command "reload" => sub {
2783	my ($who, $arg) = @_;	3867	my ($who, $arg) = @_;
2784		3868
2785	if ($who->flag (FLAG_WIZ)) {	3869	if ($who->flag (FLAG_WIZ)) {
2786	$who->message ("reloading server.");	3870	$who->message ("reloading server.");
		3871	async {
		3872	$Coro::current->{desc} = "perl_reload";
2787	async { reload_perl };	3873	reload_perl;
		3874	};
2788	}	3875	}
2789	};	3876	};
2790		3877
2791	unshift @INC, $LIBDIR;	3878	unshift @INC, $LIBDIR;
2792		3879
…		…
2794		3881
2795	our @WAIT_FOR_TICK;	3882	our @WAIT_FOR_TICK;
2796	our @WAIT_FOR_TICK_BEGIN;	3883	our @WAIT_FOR_TICK_BEGIN;
2797		3884
2798	sub wait_for_tick {	3885	sub wait_for_tick {
2799	return unless $TICK_WATCHER->is_active;
2800	return if $Coro::current == $Coro::main;	3886	return if tick_inhibit || $Coro::current == $Coro::main;
2801		3887
2802	my $signal = new Coro::Signal;	3888	my $signal = new Coro::Signal;
2803	push @WAIT_FOR_TICK, $signal;	3889	push @WAIT_FOR_TICK, $signal;
2804	$signal->wait;	3890	$signal->wait;
2805	}	3891	}
2806		3892
2807	sub wait_for_tick_begin {	3893	sub wait_for_tick_begin {
2808	return unless $TICK_WATCHER->is_active;
2809	return if $Coro::current == $Coro::main;	3894	return if tick_inhibit || $Coro::current == $Coro::main;
2810		3895
2811	my $signal = new Coro::Signal;	3896	my $signal = new Coro::Signal;
2812	push @WAIT_FOR_TICK_BEGIN, $signal;	3897	push @WAIT_FOR_TICK_BEGIN, $signal;
2813	$signal->wait;	3898	$signal->wait;
2814	}	3899	}
2815		3900
2816	$TICK_WATCHER = Event->timer (	3901	sub tick {
2817	reentrant => 0,
2818	parked => 1,
2819	prio => 0,
2820	at => $NEXT_TICK || $TICK,
2821	data => WF_AUTOCANCEL,
2822	cb => sub {
2823	if ($Coro::current != $Coro::main) {	3902	if ($Coro::current != $Coro::main) {
2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3903	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2825	unless ++$bug_warning > 10;	3904	unless ++$bug_warning > 10;
2826	return;	3905	return;
2827	}	3906	}
2828		3907
2829	$NOW = Event::time;
2830
2831	cf::server_tick; # one server iteration	3908	cf::server_tick; # one server iteration
2832		3909
2833	$RUNTIME += $TICK;
2834	$NEXT_TICK += $TICK;
2835
2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3910	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2837	$NEXT_RUNTIME_WRITE = $NOW + 10;	3911	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2838	Coro::async_pool {	3912	Coro::async_pool {
		3913	$Coro::current->{desc} = "runtime saver";
2839	write_runtime	3914	write_runtime_sync
2840	or warn "ERROR: unable to write runtime file: $!";	3915	or warn "ERROR: unable to write runtime file: $!";
2841	};
2842	}	3916	};
		3917	}
2843		3918
2844	# my $AFTER = Event::time;
2845	# warn $AFTER - $NOW;#d#
2846
2847	# if we are delayed by four ticks or more, skip them all
2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2849
2850	$TICK_WATCHER->at ($NEXT_TICK);
2851	$TICK_WATCHER->start;
2852
2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3919	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2854	$sig->send;	3920	$sig->send;
2855	}	3921	}
2856	while (my $sig = shift @WAIT_FOR_TICK) {	3922	while (my $sig = shift @WAIT_FOR_TICK) {
2857	$sig->send;	3923	$sig->send;
2858	}
2859
2860	_post_tick;
2861	},	3924	}
2862	);	3925
		3926	$LOAD = ($NOW - $TICK_START) / $TICK;
		3927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3928
		3929	if (0) {
		3930	if ($NEXT_TICK) {
		3931	my $jitter = $TICK_START - $NEXT_TICK;
		3932	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3933	warn "jitter $JITTER\n";#d#
		3934	}
		3935	}
		3936	}
2863		3937
2864	{	3938	{
2865	BDB::max_poll_time $TICK * 0.1;	3939	# configure BDB
2866	$BDB_POLL_WATCHER = Event->io (	3940
2867	reentrant => 0,
2868	fd => BDB::poll_fileno,
2869	poll => 'r',
2870	prio => 0,
2871	data => WF_AUTOCANCEL,
2872	cb => \&BDB::poll_cb,
2873	);
2874	BDB::min_parallel 8;	3941	BDB::min_parallel 8;
2875		3942	BDB::max_poll_reqs $TICK * 0.1;
2876	BDB::set_sync_prepare {	3943	$AnyEvent::BDB::WATCHER->priority (1);
2877	my $status;
2878	my $current = $Coro::current;
2879	(
2880	sub {
2881	$status = $!;
2882	$current->ready; undef $current;
2883	},
2884	sub {
2885	Coro::schedule while defined $current;
2886	$! = $status;
2887	},
2888	)
2889	};
2890		3944
2891	unless ($DB_ENV) {	3945	unless ($DB_ENV) {
2892	$DB_ENV = BDB::db_env_create;	3946	$DB_ENV = BDB::db_env_create;
		3947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3948	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3949	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3950	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3951	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2893		3952
2894	cf::sync_job {	3953	cf::sync_job {
2895	eval {	3954	eval {
2896	BDB::db_env_open	3955	BDB::db_env_open
2897	$DB_ENV,	3956	$DB_ENV,
…		…
2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2901	0666;	3960	0666;
2902		3961
2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2904
2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2906	$DB_ENV->set_lk_detect;
2907	};	3963	};
2908		3964
2909	cf::cleanup "db_env_open(db): $@" if $@;	3965	cf::cleanup "db_env_open(db): $@" if $@;
2910	};	3966	};
2911	}	3967	}
		3968
		3969	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3970	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3971	};
		3972	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3973	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3974	};
		3975	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3976	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3977	};
2912	}	3978	}
2913		3979
2914	{	3980	{
		3981	# configure IO::AIO
		3982
2915	IO::AIO::min_parallel 8;	3983	IO::AIO::min_parallel 8;
2916
2917	undef $Coro::AIO::WATCHER;
2918	IO::AIO::max_poll_time $TICK * 0.1;	3984	IO::AIO::max_poll_time $TICK * 0.1;
2919	$AIO_POLL_WATCHER = Event->io (	3985	undef $AnyEvent::AIO::WATCHER;
2920	reentrant => 0,
2921	data => WF_AUTOCANCEL,
2922	fd => IO::AIO::poll_fileno,
2923	poll => 'r',
2924	prio => 6,
2925	cb => \&IO::AIO::poll_cb,
2926	);
2927	}	3986	}
2928		3987
2929	my $_log_backtrace;	3988	my $_log_backtrace;
2930		3989
2931	sub _log_backtrace {	3990	sub _log_backtrace {
…		…
2934	$msg =~ s/\n//;	3993	$msg =~ s/\n//;
2935		3994
2936	# limit the # of concurrent backtraces	3995	# limit the # of concurrent backtraces
2937	if ($_log_backtrace < 2) {	3996	if ($_log_backtrace < 2) {
2938	++$_log_backtrace;	3997	++$_log_backtrace;
		3998	my $perl_bt = Carp::longmess $msg;
2939	async {	3999	async {
		4000	$Coro::current->{desc} = "abt $msg";
		4001
2940	my @bt = fork_call {	4002	my @bt = fork_call {
2941	@addr = map { sprintf "%x", $_ } @addr;	4003	@addr = map { sprintf "%x", $_ } @addr;
2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4004	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4005	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2944	or die "addr2line: $!";	4006	or die "addr2line: $!";
…		…
2952	}	4014	}
2953		4015
2954	@funcs	4016	@funcs
2955	};	4017	};
2956		4018
2957	LOG llevInfo, "[ABT] $msg\n";	4019	LOG llevInfo, "[ABT] $perl_bt\n";
		4020	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2958	LOG llevInfo, "[ABT] $_\n" for @bt;	4021	LOG llevInfo, "[ABT] $_\n" for @bt;
2959	--$_log_backtrace;	4022	--$_log_backtrace;
2960	};	4023	};
2961	} else {	4024	} else {
2962	LOG llevInfo, "[ABT] $msg\n";	4025	LOG llevInfo, "[ABT] $msg\n";
2963	LOG llevInfo, "[ABT] [suppressed]\n";	4026	LOG llevInfo, "[ABT] [suppressed]\n";
2964	}	4027	}
2965	}	4028	}
2966		4029
2967	# load additional modules	4030	# load additional modules
2968	use cf::pod;	4031	require "cf/$_.pm" for @EXTRA_MODULES;
		4032	cf::_connect_to_perl_2;
2969		4033
2970	END { cf::emergency_save }	4034	END { cf::emergency_save }
2971		4035
2972	1	4036	1
2973		4037

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