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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC vs.
Revision 1.494 by root, Mon Oct 26 05:18:00 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, $y)
1844		2526
…		…
1862	}	2544	}
1863		2545
1864	sub cf::object::player::enter_link {	2546	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2547	my ($self) = @_;
1866		2548
		2549	$self->deactivate_recursive;
		2550
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2552
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1871		2555
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1873	}	2557	}
1874		2558
1875	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1877		2563
1878	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1879		2565
1880	unless ($map) {	2566	unless ($map) {
1881	# restore original map position	2567	# restore original map position
…		…
1892	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1893	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1894		2580
1895	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1898		2584
1899	$map->load;	2585	$map->load;
1900	$map->load_diag;	2586	$map->load_neighbours;
1901		2587
1902	return unless $self->contr->active;	2588	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2589
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1907	}
1908		2592
1909	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2594	$self->activate_recursive;
1911	my ($pl) = @_;	2595	}
1912		2596
1913	# abort map switching before logout	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1914	if ($pl->ob->{_link_pos}) {
1915	cf::sync_job {
1916	$pl->ob->leave_link
1917	};
1918	}
1919	},
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2598
1923	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1924	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1925	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1926	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1927	(async {	2603	be called at the end of this process.
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940		2604
1941	=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 >>.
1942		2607
1943	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1944		2611
1945	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1946	my ($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;
1947		2617
1948	$self->enter_link;	2618	$self->enter_link;
1949		2619
1950	(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
1951	my $map = eval {	2642	my $map = eval {
1952	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1953	$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
1954	$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 $@;
1955	} or	2658	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1959	})->prio (1);	2666	})->prio (1);
1960	}	2667	}
1961		2668
1962	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1963		2670
…		…
1983	}	2690	}
1984		2691
1985	sub prepare_random_map {	2692	sub prepare_random_map {
1986	my ($exit) = @_;	2693	my ($exit) = @_;
1987		2694
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2697	# that depends on the exit object
1993		2698
1994	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	2701	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
2001	}	2708	}
2002		2709
2003	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
2004		2711
2005	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
2008		2715
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	2718	undef $fh;
2012	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
2013		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
2016	}	2727	}
2017	}	2728	}
2018		2729
2019	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
2021		2732
2022	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
2023		2734
2024	if ($exit->slaying eq "/!") {
2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
2026	# the problem is that $exit might not survive long enough
2027	# so it needs to be done right now, right here
2028	cf::sync_job { prepare_random_map $exit };
2029	}
2030
2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2032	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;
2034
2035	$self->enter_link;	2735	$self->enter_link;
2036		2736
2037	(async {	2737	(async {
2038	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
2039	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
2040	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
2041		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
2042	1;	2761	1
2043	}) {	2762	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "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. "
2046	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
2048		2767
2049	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2068		2787
2069	utf8::encode $text;	2788	utf8::encode $text;
2070	$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);
2071	}	2790	}
2072		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
2073	=item $client->ext_event ($type, %msg)	2979	=item $client->ext_msg ($type, @msg)
2074		2980
2075	Sends an exti event to the client.	2981	Sends an ext event to the client.
2076		2982
2077	=cut	2983	=cut
2078		2984
2079	sub cf::client::ext_event($$%) {	2985	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	2986	my ($self, $type, @msg) = @_;
2081		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	2991	push @msg, msgtype => "event_$type";
2083	$self->send_packet ("ext " . cf::to_json \%msg);	2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
2084	}	3012	}
2085		3013
2086	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
2087		3015
2088	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2090	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2091		3019
2092	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
2093	reliable at some point in the future.	3021	become reliable at some point in the future.
2094		3022
2095	=cut	3023	=cut
2096		3024
2097	sub cf::client::query {	3025	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	3034	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		3036
2109	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2111	}	3041	}
2112		3042
2113	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
2114	on_reply => sub {	3049	on_reply => sub {
2115	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2116		3051
2117	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2118	# get handled first	3053	# get handled first
…		…
2130	} else {	3065	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	3067	}
2133	}	3068	}
2134	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
2135	);	3096	);
2136		3097
2137	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2138		3099
2139	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2180	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2182		3143
2183	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2184		3145
2185	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
2186		3151
2187	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2188		3153
2189	=pod	3154	=pod
2190		3155
2191	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2192		3157
2193	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
2194	cf::object::player player	3163	cf::object::player
2195	cf::player peaceful	3164	player
2196	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2197		3171
2198	=cut	3172	=cut
2199		3173
2200	for (	3174	for (
2201	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
2202	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2205	) {	3181	) {
2206	no strict 'refs';	3182	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2225	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2226		3202
2227	my $qcode = $code;	3203	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2230		3208
2231	local $_;	3209	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2233		3211
2234	my $eval =	3212	my $eval =
…		…
2277	=back	3255	=back
2278		3256
2279	=cut	3257	=cut
2280		3258
2281	#############################################################################	3259	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453
2454	#############################################################################
2455	# the server's init and main functions	3260	# the server's init and main functions
2456		3261
2457	sub load_facedata($) {	3262	sub load_facedata($) {
2458	my ($path) = @_;	3263	my ($path) = @_;
		3264
		3265	# HACK to clear player env face cache, we need some signal framework
		3266	# for this (global event?)
		3267	%ext::player_env::MUSIC_FACE_CACHE = ();
		3268
		3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2459		3270
2460	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2461		3272
2462	my $facedata;	3273	my $facedata;
2463	0 < aio_load $path, $facedata	3274	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	3277	$facedata = Coro::Storable::thaw $facedata;
2467		3278
2468	$facedata->{version} == 2	3279	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		3281
		3282	# patch in the exptable
		3283	$facedata->{resource}{"res/exp_table"} = {
		3284	type => FT_RSRC,
		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3286	};
		3287	cf::cede_to_tick;
		3288
2471	{	3289	{
2472	my $faces = $facedata->{faceinfo};	3290	my $faces = $facedata->{faceinfo};
2473		3291
2474	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2479	Coro::cede;	3299
		3300	cf::cede_to_tick;
2480	}	3301	}
2481		3302
2482	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2484	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2485	or next;	3307	or next;
		3308
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3312	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3314	}
2491	Coro::cede;	3315
		3316	cf::cede_to_tick;
2492	}	3317	}
2493	}	3318	}
2494		3319
2495	{	3320	{
2496	my $anims = $facedata->{animinfo};	3321	my $anims = $facedata->{animinfo};
2497		3322
2498	while (my ($anim, $info) = each %$anims) {	3323	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	3325	cf::cede_to_tick;
2501	}	3326	}
2502		3327
2503	cf::anim::invalidate_all; # d'oh	3328	cf::anim::invalidate_all; # d'oh
2504	}	3329	}
2505		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
2506	1	3366	1
2507	}	3367	}
2508		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
2509	sub reload_regions {	3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
2510	load_resource_file "$MAPDIR/regions"	3412	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
2512	}	3419	}
2513		3420
2514	sub reload_facedata {	3421	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3422	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	3423	or die "unable to load facedata\n";
…		…
2527	}	3434	}
2528		3435
2529	sub reload_resources {	3436	sub reload_resources {
2530	warn "reloading resource files...\n";	3437	warn "reloading resource files...\n";
2531		3438
2532	reload_regions;
2533	reload_facedata;	3439	reload_facedata;
2534	reload_archetypes;	3440	reload_archetypes;
		3441	reload_regions;
2535	reload_treasures;	3442	reload_treasures;
2536		3443
2537	warn "finished reloading resource files\n";	3444	warn "finished reloading resource files\n";
2538	}	3445	}
2539		3446
2540	sub init {	3447	sub reload_config {
2541	reload_resources;	3448	warn "reloading config file...\n";
2542	}
2543		3449
2544	sub cfg_load {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3451	or return;
2547		3452
2548	local $/;	3453	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2550		3455
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2552		3457
2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2559	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2560	};	3465	};
2561	warn $@ if $@;	3466	warn $@ if $@;
2562	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2563	}	3498	}
2564		3499
2565	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2566	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2569	(async {	3518	(async {
2570	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2571	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2572	};	3522	};
2573		3523
2574	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	reload_resources;
		3528	reload_config;
2575	db_init;	3529	db_init;
		3530
		3531	cf::load_settings;
		3532	cf::load_materials;
		3533	cf::init_uuid;
		3534	cf::init_signals;
		3535	cf::init_commands;
		3536	cf::init_skills;
		3537
		3538	cf::init_beforeplay;
		3539
		3540	atomic;
		3541
2576	load_extensions;	3542	load_extensions;
2577		3543
2578	$TICK_WATCHER->start;	3544	utime time, time, $RUNTIMEFILE;
2579	Event::loop;	3545
		3546	# no (long-running) fork's whatsoever before this point(!)
		3547	use POSIX ();
		3548	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3549
		3550	(pop @POST_INIT)->(0) while @POST_INIT;
		3551	};
		3552
		3553	main_loop;
2580	}	3554	}
2581		3555
2582	#############################################################################	3556	#############################################################################
2583	# initialisation and cleanup	3557	# initialisation and cleanup
2584		3558
2585	# install some emergency cleanup handlers	3559	# install some emergency cleanup handlers
2586	BEGIN {	3560	BEGIN {
		3561	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	3562	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	3563	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2589	reentrant => 0,
2590	data => WF_AUTOCANCEL,
2591	signal => $signal,
2592	prio => 0,
2593	cb => sub {
2594	cf::cleanup "SIG$signal";	3564	cf::cleanup "SIG$signal";
2595	},
2596	);	3565	};
		3566	}
		3567	}
		3568
		3569	sub write_runtime_sync {
		3570	# first touch the runtime file to show we are still running:
		3571	# the fsync below can take a very very long time.
		3572
		3573	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3574
		3575	my $guard = cf::lock_acquire "write_runtime";
		3576
		3577	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3578	or return;
		3579
		3580	my $value = $cf::RUNTIME + 90 + 10;
		3581	# 10 is the runtime save interval, for a monotonic clock
		3582	# 60 allows for the watchdog to kill the server.
		3583
		3584	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3585	and return;
		3586
		3587	# always fsync - this file is important
		3588	aio_fsync $fh
		3589	and return;
		3590
		3591	# touch it again to show we are up-to-date
		3592	aio_utime $fh, undef, undef;
		3593
		3594	close $fh
		3595	or return;
		3596
		3597	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3598	and return;
		3599
		3600	warn "runtime file written.\n";
		3601
2597	}	3602	1
		3603	}
		3604
		3605	our $uuid_lock;
		3606	our $uuid_skip;
		3607
		3608	sub write_uuid_sync($) {
		3609	$uuid_skip ||= $_[0];
		3610
		3611	return if $uuid_lock;
		3612	local $uuid_lock = 1;
		3613
		3614	my $uuid = "$LOCALDIR/uuid";
		3615
		3616	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3617	or return;
		3618
		3619	my $value = uuid_seq uuid_cur;
		3620
		3621	unless ($value) {
		3622	warn "cowardly refusing to write zero uuid value!\n";
		3623	return;
		3624	}
		3625
		3626	my $value = uuid_str $value + $uuid_skip;
		3627	$uuid_skip = 0;
		3628
		3629	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3630	and return;
		3631
		3632	# always fsync - this file is important
		3633	aio_fsync $fh
		3634	and return;
		3635
		3636	close $fh
		3637	or return;
		3638
		3639	aio_rename "$uuid~", $uuid
		3640	and return;
		3641
		3642	warn "uuid file written ($value).\n";
		3643
		3644	1
		3645
		3646	}
		3647
		3648	sub write_uuid($$) {
		3649	my ($skip, $sync) = @_;
		3650
		3651	$sync ? write_uuid_sync $skip
		3652	: async { write_uuid_sync $skip };
2598	}	3653	}
2599		3654
2600	sub emergency_save() {	3655	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3656	my $freeze_guard = cf::freeze_mainloop;
2602		3657
2603	warn "enter emergency perl save\n";	3658	warn "emergency_perl_save: enter\n";
2604		3659
2605	cf::sync_job {	3660	cf::sync_job {
		3661	# this is a trade-off: we want to be very quick here, so
		3662	# save all maps without fsync, and later call a global sync
		3663	# (which in turn might be very very slow)
		3664	local $USE_FSYNC = 0;
		3665
2606	# use a peculiar iteration method to avoid tripping on perl	3666	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	3667	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	3668	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	3669	warn "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	3670	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	3671	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	3672	$pl->valid or next;
		3673	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	3674	$pl->save;
2614	}	3675	}
2615	warn "end emergency player save\n";	3676	warn "emergency_perl_save: end player save\n";
2616		3677
2617	warn "begin emergency map save\n";	3678	warn "emergency_perl_save: begin map save\n";
2618	for my $path (keys %cf::MAP) {	3679	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	3680	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	3681	$map->valid or next;
2621	$map->save;	3682	$map->save;
2622	}	3683	}
2623	warn "end emergency map save\n";	3684	warn "emergency_perl_save: end map save\n";
2624		3685
2625	warn "begin emergency database checkpoint\n";	3686	warn "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	3687	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	3688	warn "emergency_perl_save: end database checkpoint\n";
		3689
		3690	warn "emergency_perl_save: begin write uuid\n";
		3691	write_uuid_sync 1;
		3692	warn "emergency_perl_save: end write uuid\n";
2628	};	3693	};
2629		3694
		3695	warn "emergency_perl_save: starting sync()\n";
		3696	IO::AIO::aio_sync sub {
		3697	warn "emergency_perl_save: finished sync()\n";
		3698	};
		3699
2630	warn "leave emergency perl save\n";	3700	warn "emergency_perl_save: leave\n";
2631	}	3701	}
2632		3702
2633	sub post_cleanup {	3703	sub post_cleanup {
2634	my ($make_core) = @_;	3704	my ($make_core) = @_;
2635		3705
2636	warn Carp::longmess "post_cleanup backtrace"	3706	warn Carp::longmess "post_cleanup backtrace"
2637	if $make_core;	3707	if $make_core;
		3708
		3709	my $fh = pidfile;
		3710	unlink $PIDFILE if <$fh> == $$;
		3711	}
		3712
		3713	# a safer delete_package, copied from Symbol
		3714	sub clear_package($) {
		3715	my $pkg = shift;
		3716
		3717	# expand to full symbol table name if needed
		3718	unless ($pkg =~ /^main::.*::$/) {
		3719	$pkg = "main$pkg" if $pkg =~ /^::/;
		3720	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3721	$pkg .= '::' unless $pkg =~ /::$/;
		3722	}
		3723
		3724	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3725	my $stem_symtab = *{$stem}{HASH};
		3726
		3727	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3728	or return;
		3729
		3730	# clear all symbols
		3731	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3732	for my $name (keys %$leaf_symtab) {
		3733	_gv_clear *{"$pkg$name"};
		3734	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3735	}
		3736	warn "cleared package $pkg\n";#d#
2638	}	3737	}
2639		3738
2640	sub do_reload_perl() {	3739	sub do_reload_perl() {
2641	# can/must only be called in main	3740	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	3741	if ($Coro::current != $Coro::main) {
2643	warn "can only reload from main coroutine";	3742	warn "can only reload from main coroutine";
2644	return;	3743	return;
2645	}	3744	}
2646		3745
		3746	return if $RELOAD++;
		3747
		3748	my $t1 = EV::time;
		3749
		3750	while ($RELOAD) {
2647	warn "reloading...";	3751	warn "reloading...";
2648		3752
2649	warn "entering sync_job";	3753	warn "entering sync_job";
2650		3754
2651	cf::sync_job {	3755	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark	3756	cf::write_runtime_sync; # external watchdog should not bark
2653	cf::emergency_save;	3757	cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark	3758	cf::write_runtime_sync; # external watchdog should not bark
2655		3759
2656	warn "syncing database to disk";	3760	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3761	BDB::db_env_txn_checkpoint $DB_ENV;
2658		3762
2659	# if anything goes wrong in here, we should simply crash as we already saved	3763	# if anything goes wrong in here, we should simply crash as we already saved
2660		3764
2661	warn "cancelling all WF_AUTOCANCEL watchers";
2662	for (Event::all_watchers) {
2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2664	}
2665
2666	warn "flushing outstanding aio requests";	3765	warn "flushing outstanding aio requests";
2667	for (;;) {
2668	BDB::flush;
2669	IO::AIO::flush;
2670	Coro::cede;
2671	last unless IO::AIO::nreqs || BDB::nreqs;	3766	while (IO::AIO::nreqs || BDB::nreqs) {
2672	warn "iterate...";	3767	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2673	}
2674
2675	++$RELOAD;
2676
2677	warn "cancelling all extension coros";
2678	$_->cancel for values %EXT_CORO;
2679	%EXT_CORO = ();
2680
2681	warn "removing commands";
2682	%COMMAND = ();
2683
2684	warn "removing ext commands";
2685	%EXTCMD = ();
2686
2687	warn "unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";
2690
2691	if (my $cb = $pkg->can ("unload")) {
2692	eval {
2693	$cb->($pkg);
2694	1
2695	} or warn "$pkg unloaded, but with errors: $@";
2696	}	3768	}
2697		3769
2698	warn "... nuking $pkg";	3770	warn "cancelling all extension coros";
2699	Symbol::delete_package $pkg;	3771	$_->cancel for values %EXT_CORO;
2700	}	3772	%EXT_CORO = ();
2701		3773
2702	warn "unloading all perl modules loaded from $LIBDIR";	3774	warn "removing commands";
2703	while (my ($k, $v) = each %INC) {	3775	%COMMAND = ();
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		3776
		3777	warn "removing ext/exti commands";
		3778	%EXTCMD = ();
		3779	%EXTICMD = ();
		3780
		3781	warn "unloading/nuking all extensions";
		3782	for my $pkg (@EXTS) {
2706	warn "... unloading $k";	3783	warn "... unloading $pkg";
2707	delete $INC{$k};
2708		3784
2709	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;
2711
2712	if (my $cb = $k->can ("unload_module")) {	3785	if (my $cb = $pkg->can ("unload")) {
		3786	eval {
2713	$cb->();	3787	$cb->($pkg);
		3788	1
		3789	} or warn "$pkg unloaded, but with errors: $@";
		3790	}
		3791
		3792	warn "... clearing $pkg";
		3793	clear_package $pkg;
2714	}	3794	}
2715		3795
2716	Symbol::delete_package $k;	3796	warn "unloading all perl modules loaded from $LIBDIR";
		3797	while (my ($k, $v) = each %INC) {
		3798	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3799
		3800	warn "... unloading $k";
		3801	delete $INC{$k};
		3802
		3803	$k =~ s/\.pm$//;
		3804	$k =~ s/\//::/g;
		3805
		3806	if (my $cb = $k->can ("unload_module")) {
		3807	$cb->();
		3808	}
		3809
		3810	clear_package $k;
2717	}	3811	}
2718		3812
2719	warn "getting rid of safe::, as good as possible";	3813	warn "getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	3814	clear_package "safe::$_"
2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3815	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2722		3816
2723	warn "unloading cf.pm \"a bit\"";	3817	warn "unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	3818	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	3819	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		3820
2727	# don't, removes xs symbols, too,	3821	# don't, removes xs symbols, too,
2728	# and global variables created in xs	3822	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	3823	#clear_package __PACKAGE__;
2730		3824
2731	warn "unload completed, starting to reload now";	3825	warn "unload completed, starting to reload now";
2732		3826
2733	warn "reloading cf.pm";	3827	warn "reloading cf.pm";
2734	require cf;	3828	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3829	cf::_connect_to_perl_1;
2736		3830
2737	warn "loading config and database again";	3831	warn "loading config and database again";
2738	cf::cfg_load;	3832	cf::reload_config;
2739		3833
2740	warn "loading extensions";	3834	warn "loading extensions";
2741	cf::load_extensions;	3835	cf::load_extensions;
2742		3836
		3837	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	3838	warn "reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	3839	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	3840	warn "reattaching attachments to maps";
2746	reattach $_ for values %MAP;	3841	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	3842	warn "reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	3843	reattach $_ for values %PLAYER;
		3844	}
2749		3845
		3846	warn "running post_init jobs";
		3847	(pop @POST_INIT)->(1) while @POST_INIT;
		3848
2750	warn "leaving sync_job";	3849	warn "leaving sync_job";
2751		3850
2752	1	3851	1
2753	} or do {	3852	} or do {
2754	warn $@;	3853	warn $@;
2755	warn "error while reloading, exiting.";	3854	cf::cleanup "error while reloading, exiting.";
2756	exit 1;
2757	};	3855	};
2758		3856
2759	warn "reloaded";	3857	warn "reloaded";
		3858	--$RELOAD;
		3859	}
		3860
		3861	$t1 = EV::time - $t1;
		3862	warn "reload completed in ${t1}s\n";
2760	};	3863	};
2761		3864
2762	our $RELOAD_WATCHER; # used only during reload	3865	our $RELOAD_WATCHER; # used only during reload
2763		3866
2764	sub reload_perl() {	3867	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	3868	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	3869	# coro crashes during coro_state_free->destroy here.
2767		3870
2768	$RELOAD_WATCHER ||= Event->timer (	3871	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	3872	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	3873
2771	data => WF_AUTOCANCEL,	3874	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	3875	do_reload_perl;
2774	undef $RELOAD_WATCHER;	3876	undef $RELOAD_WATCHER;
2775	},	3877	};
2776	);	3878	};
2777	}	3879	}
2778		3880
2779	register_command "reload" => sub {	3881	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	3882	my ($who, $arg) = @_;
2781		3883
2782	if ($who->flag (FLAG_WIZ)) {	3884	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	3885	$who->message ("reloading server.");
		3886	async {
		3887	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	3888	reload_perl;
		3889	};
2785	}	3890	}
2786	};	3891	};
2787		3892
2788	unshift @INC, $LIBDIR;	3893	unshift @INC, $LIBDIR;
2789		3894
…		…
2791		3896
2792	our @WAIT_FOR_TICK;	3897	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;	3898	our @WAIT_FOR_TICK_BEGIN;
2794		3899
2795	sub wait_for_tick {	3900	sub wait_for_tick {
2796	return unless $TICK_WATCHER->is_active;
2797	return if $Coro::current == $Coro::main;	3901	return if tick_inhibit || $Coro::current == $Coro::main;
2798		3902
2799	my $signal = new Coro::Signal;	3903	my $signal = new Coro::Signal;
2800	push @WAIT_FOR_TICK, $signal;	3904	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;	3905	$signal->wait;
2802	}	3906	}
2803		3907
2804	sub wait_for_tick_begin {	3908	sub wait_for_tick_begin {
2805	return unless $TICK_WATCHER->is_active;
2806	return if $Coro::current == $Coro::main;	3909	return if tick_inhibit || $Coro::current == $Coro::main;
2807		3910
2808	my $signal = new Coro::Signal;	3911	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3912	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3913	$signal->wait;
2811	}	3914	}
2812		3915
2813	$TICK_WATCHER = Event->timer (	3916	sub tick {
2814	reentrant => 0,
2815	parked => 1,
2816	prio => 0,
2817	at => $NEXT_TICK || $TICK,
2818	data => WF_AUTOCANCEL,
2819	cb => sub {
2820	if ($Coro::current != $Coro::main) {	3917	if ($Coro::current != $Coro::main) {
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3918	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	3919	unless ++$bug_warning > 10;
2823	return;	3920	return;
2824	}	3921	}
2825		3922
2826	$NOW = Event::time;
2827
2828	cf::server_tick; # one server iteration	3923	cf::server_tick; # one server iteration
2829		3924
2830	$RUNTIME += $TICK;
2831	$NEXT_TICK += $TICK;
2832
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3925	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	3926	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	3927	Coro::async_pool {
		3928	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	3929	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	3930	or warn "ERROR: unable to write runtime file: $!";
2838	};
2839	}	3931	};
		3932	}
2840		3933
2841	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#
2843
2844	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2846
2847	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;
2849
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3934	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	3935	$sig->send;
2852	}	3936	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {	3937	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;	3938	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	3939	}
2859	);	3940
		3941	$LOAD = ($NOW - $TICK_START) / $TICK;
		3942	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3943
		3944	if (0) {
		3945	if ($NEXT_TICK) {
		3946	my $jitter = $TICK_START - $NEXT_TICK;
		3947	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3948	warn "jitter $JITTER\n";#d#
		3949	}
		3950	}
		3951	}
2860		3952
2861	{	3953	{
2862	BDB::max_poll_time $TICK * 0.1;	3954	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	3955
2864	reentrant => 0,
2865	fd => BDB::poll_fileno,
2866	poll => 'r',
2867	prio => 0,
2868	data => WF_AUTOCANCEL,
2869	cb => \&BDB::poll_cb,
2870	);
2871	BDB::min_parallel 8;	3956	BDB::min_parallel 8;
2872		3957	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	3958	$AnyEvent::BDB::WATCHER->priority (1);
2874	my $status;
2875	my $current = $Coro::current;
2876	(
2877	sub {
2878	$status = $!;
2879	$current->ready; undef $current;
2880	},
2881	sub {
2882	Coro::schedule while defined $current;
2883	$! = $status;
2884	},
2885	)
2886	};
2887		3959
2888	unless ($DB_ENV) {	3960	unless ($DB_ENV) {
2889	$DB_ENV = BDB::db_env_create;	3961	$DB_ENV = BDB::db_env_create;
		3962	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3963	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3964	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3965	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3966	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2890		3967
2891	cf::sync_job {	3968	cf::sync_job {
2892	eval {	3969	eval {
2893	BDB::db_env_open	3970	BDB::db_env_open
2894	$DB_ENV,	3971	$DB_ENV,
…		…
2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3973	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3974	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	3975	0666;
2899		3976
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3977	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2901
2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2903	$DB_ENV->set_lk_detect;
2904	};	3978	};
2905		3979
2906	cf::cleanup "db_env_open(db): $@" if $@;	3980	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	3981	};
2908	}	3982	}
		3983
		3984	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3985	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3986	};
		3987	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3988	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3989	};
		3990	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3991	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3992	};
2909	}	3993	}
2910		3994
2911	{	3995	{
		3996	# configure IO::AIO
		3997
2912	IO::AIO::min_parallel 8;	3998	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	3999	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	4000	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	4001	}
2918	data => WF_AUTOCANCEL,	4002
2919	fd => IO::AIO::poll_fileno,	4003	my $_log_backtrace;
2920	poll => 'r',	4004
2921	prio => 6,	4005	sub _log_backtrace {
2922	cb => \&IO::AIO::poll_cb,	4006	my ($msg, @addr) = @_;
2923	);	4007
		4008	$msg =~ s/\n//;
		4009
		4010	# limit the # of concurrent backtraces
		4011	if ($_log_backtrace < 2) {
		4012	++$_log_backtrace;
		4013	my $perl_bt = Carp::longmess $msg;
		4014	async {
		4015	$Coro::current->{desc} = "abt $msg";
		4016
		4017	my @bt = fork_call {
		4018	@addr = map { sprintf "%x", $_ } @addr;
		4019	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4020	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4021	or die "addr2line: $!";
		4022
		4023	my @funcs;
		4024	my @res = <$fh>;
		4025	chomp for @res;
		4026	while (@res) {
		4027	my ($func, $line) = splice @res, 0, 2, ();
		4028	push @funcs, "[$func] $line";
		4029	}
		4030
		4031	@funcs
		4032	};
		4033
		4034	LOG llevInfo, "[ABT] $perl_bt\n";
		4035	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4036	LOG llevInfo, "[ABT] $_\n" for @bt;
		4037	--$_log_backtrace;
		4038	};
		4039	} else {
		4040	LOG llevInfo, "[ABT] $msg\n";
		4041	LOG llevInfo, "[ABT] [suppressed]\n";
		4042	}
2924	}	4043	}
2925		4044
2926	# load additional modules	4045	# load additional modules
2927	use cf::pod;	4046	require "cf/$_.pm" for @EXTRA_MODULES;
		4047	cf::_connect_to_perl_2;
2928		4048
2929	END { cf::emergency_save }	4049	END { cf::emergency_save }
2930		4050
2931	1	4051	1
2932		4052

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