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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.266 by root, Fri May 18 01:01:02 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
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	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 $REALLY_UNLOOP; # never set to true, please :)
98		148
99	binmode STDOUT;	149	binmode STDOUT;
100	binmode STDERR;	150	binmode STDERR;
101		151
102	# read virtual server time, if available	152	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	154	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
107	}	157	}
		158
		159	eval "sub TICK() { $TICK } 1" or die;
108		160
109	mkdir $_	161	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		163
112	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
113		165
114	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::"} };
115		178
116	#############################################################################	179	#############################################################################
117		180
118	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
119		182
…		…
155		218
156	The raw value load value from the last tick.	219	The raw value load value from the last tick.
157		220
158	=item %cf::CFG	221	=item %cf::CFG
159		222
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	224	from wherever your confdir points to.
162		225
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		227
165	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
166	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
167	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.
168		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
169	=back	244	=back
170		245
171	=cut	246	=cut
172		247
173	BEGIN {	248	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	249	my $msg = join "", @_;
176		250
177	$msg .= "\n"	251	$msg .= "\n"
178	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
179		253
180	$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;
181		255
182	utf8::encode $msg;
183	LOG llevError, $msg;	256	LOG llevError, $msg;
184	};	257	};
185	}	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	};
186		272
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@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';
192	@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)
193		280
194	# 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
195	# within the Safe compartment.	282	# within the Safe compartment.
196	for my $pkg (qw(	283	for my $pkg (qw(
197	cf::global cf::attachable	284	cf::global cf::attachable
198	cf::object cf::object::player	285	cf::object cf::object::player
199	cf::client cf::player	286	cf::client cf::player
200	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
201	cf::map cf::party cf::region	289	cf::party cf::region
202	)) {	290	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	292	}
206		293
207	$Event::DIED = sub {	294	$EV::DIED = sub {
208	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
209	};	296	};
		297
		298	#############################################################################
210		299
211	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
212		301
213	=over 4	302	=over 4
214		303
…		…
233	$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;
234	$d	323	$d
235	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
236	}	325	}
237		326
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
241		328
242	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
243		330
244	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
245		332
246	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
247		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
248	=item cf::lock_wait $string	356	=item cf::lock_wait $string
249		357
250	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
251		359
252	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
253		361
254	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
255	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,
256	for example when the coroutine gets canceled), the lock is automatically	364	for example when the coroutine gets canceled), the lock is automatically
257	returned.	365	returned.
258		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
259	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
260	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
261		372
262	=item $locked = cf::lock_active $string	373	=item $locked = cf::lock_active $string
263		374
264	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.
265		376
266	=cut	377	=cut
267		378
268	our %LOCK;	379	our $LOCKS = new Coro::SemaphoreSet;
269		380
270	sub lock_wait($) {	381	sub lock_wait($) {
271	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	383	}
279		384
280	sub lock_acquire($) {	385	sub lock_acquire($) {
281	my ($key) = @_;	386	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	387	}
293		388
294	sub lock_active($) {	389	sub lock_active($) {
295	my ($key) = @_;	390	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	391	}
299		392
300	sub freeze_mainloop {	393	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
302		395
303	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
304	$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($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
305	};	457	}
306	$TICK_WATCHER->stop;	458	};
307	$guard	459
		460	sub get_slot($;$$) {
		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	$sig->wait;
308	}	472	}
309		473
310	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
311		475
312	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		481
318	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
319		483
320	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
321		485
322	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
325		490
326	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
329	fast or be very important.	494	fast or be very important.
…		…
332		497
333	sub sync_job(&) {	498	sub sync_job(&) {
334	my ($job) = @_;	499	my ($job) = @_;
335		500
336	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	502	my $time = EV::time;
338		503
339	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
341		506
342	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	508
344	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
345		510
346	my $busy = 1;	511	my $busy = 1;
347	my @res;	512	my @res;
348		513
349	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	516	@res = eval { $job->() };
351	warn $@ if $@;	517	warn $@ if $@;
352	undef $busy;	518	undef $busy;
353	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
354		520
355	while ($busy) {	521	while ($busy) {
356	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
357	}	526	}
		527	}
358		528
359	$time = Event::time - $time;	529	my $time = EV::time - $time;
360		530
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	531	$TICK_START += $time; # do not account sync jobs to server load
365		532
366	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
367	} else {	534	} else {
368	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
369		536
…		…
389	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
390		557
391	$coro	558	$coro
392	}	559	}
393		560
394	sub write_runtime {	561	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		562
397	# first touch the runtime file to show we are still running:	563	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	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.
399		567
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	568	=cut
401	utime undef, undef, $fh;	569
		570	sub fork_call(&@) {
		571	my ($cb, @args) = @_;
		572
		573	# we seemingly have to make a local copy of the whole thing,
		574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
		576
		577	my @res = Coro::Util::fork_eval {
		578	reset_signals;
		579	&$cb
		580	}, @args;
		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		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 $!;
402	}	639	};
		640	cf::cleanup "db_open(db): $@" if $@;
403		641
404	my $guard = cf::lock_acquire "write_runtime";	642	$db
		643	}
405		644
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	645	our $DB;
407	or return;
408		646
409	my $value = $cf::RUNTIME + 90 + 10;	647	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	648	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	649	$DB ||= db_table "db";
		650	};
		651	}
412		652
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	653	sub db_get($$) {
414	and return;	654	my $key = "$_[0]/$_[1]";
415		655
416	# always fsync - this file is important	656	cf::sync_job {
417	aio_fsync $fh	657	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		658
420	# touch it again to show we are up-to-date	659	$! ? ()
421	utime undef, undef, $fh;	660	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		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"
432	}	737	}
433		738
434	=item cf::datalog type => key => value, ...	739	=item cf::datalog type => key => value, ...
435		740
436	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.
…		…
448		753
449	#############################################################################	754	#############################################################################
450		755
451	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
452		757
453	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
454	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")
455	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
456		761
457	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>
458	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
459	crossfire+).	764	Deliantra).
460		765
461	=over 4	766	=over 4
462		767
463	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
464		769
…		…
508	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
509		814
510	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
512		817
513	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
514	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.
515		820
516	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
517		822
518	=over 4	823	=over 4
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
628		933
629	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		938
634	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	940	my $pkg = shift @arg;
636		941
637	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
667	}	972	}
668		973
669	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
670	} else {	975	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	977	}
673		978
674	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
675	}	980	}
676		981
…		…
678	if (ref $_[0]) {	983	if (ref $_[0]) {
679	_object_attach @_;	984	_object_attach @_;
680	} else {	985	} else {
681	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
682	}	987	}
		988	_recalc_want;
683	};	989	};
684		990
685	# all those should be optimised	991	# all those should be optimised
686	sub cf::attachable::detach {	992	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
691	reattach ($obj);	997	reattach ($obj);
692	} else {	998	} else {
693	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
694	}	1000	}
		1001	_recalc_want;
695	};	1002	};
696		1003
697	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
699		1006
…		…
714	";	1021	";
715	die if $@;	1022	die if $@;
716	}	1023	}
717		1024
718	our $override;	1025	our $override;
719	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?
720		1027
721	sub override {	1028	sub override {
722	$override = 1;	1029	$override = 1;
723	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
724	}	1031	}
725		1032
726	sub do_invoke {	1033	sub do_invoke {
727	my $event = shift;	1034	my $event = shift;
728	my $callbacks = shift;	1035	my $callbacks = shift;
729		1036
730	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
731		1038
732	local $override;	1039	local $override;
733		1040
734	for (@$callbacks) {	1041	for (@$callbacks) {
735	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
744	}	1051	}
745		1052
746	0	1053	0
747	}	1054	}
748		1055
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1057
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1059
753	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
754		1061
755	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
756	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
757	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1065
759	=back	1066	=back
760		1067
761	=cut	1068	=cut
762		1069
763	#############################################################################	1070	#############################################################################
764	# 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, $ob2
		1113	}
765		1114
766	sub reattach {	1115	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1117	my ($obj) = @_;
769		1118
		1119	# no longer needed after getting rid of delete_package?
770	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
771		1121
772	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
773		1123
774	@$registry = ();	1124	@$registry = ();
775		1125
…		…
790	cf::attachable->attach (	1140	cf::attachable->attach (
791	prio => -1000000,	1141	prio => -1000000,
792	on_instantiate => sub {	1142	on_instantiate => sub {
793	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
794		1144
795	$data = from_json $data;	1145	$data = decode_json $data;
796		1146
797	for (@$data) {	1147	for (@$data) {
798	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
799		1149
800	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1166	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
818		1168
819	sync_job {	1169	sync_job {
820	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
823		1174
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	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	}
828	close $fh;	1182	aio_close $fh;
829		1183
830	if (@$objs) {	1184	if (@$objs) {
831	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) {
832	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
835	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	}
836	close $fh;	1193	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
838	}	1195	}
839	} else {	1196	} else {
840	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
841	}	1198	}
842		1199
843	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1204	} else {
845	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
846	}	1206	}
847	} else {	1207	} else {
848	aio_unlink $filename;	1208	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
850	}	1210	}
851	}	1211	};
852	}	1212	}
853		1213
854	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
856		1216
…		…
868	or return;	1228	or return;
869		1229
870	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
872	or return;	1232	or return;
		1233
873	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
874	}	1236	}
875		1237
		1238	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
878	return ($data, $av);	1242	($data, $av)
879	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
880		1250
881	#############################################################################	1251	#############################################################################
882	# command handling &c	1252	# command handling &c
883		1253
884	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1268	}
899		1269
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1271
902	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.
903		1277
904	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
905	called.	1279	called.
906		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
907	=cut	1292	=cut
908		1293
909	sub register_extcmd {	1294	sub register_extcmd {
910	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
911		1296
912	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
913	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
914		1307
915	cf::player->attach (	1308	cf::player->attach (
916	on_command => sub {	1309	on_command => sub {
917	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
918		1311
…		…
926	cf::override;	1319	cf::override;
927	},	1320	},
928	on_extcmd => sub {	1321	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
930		1323
931	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1325
933	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
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
939	} else {	1341	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1343	}
942		1344
943	cf::override;	1345	cf::override;
944	},	1346	},
945	);	1347	);
946		1348
		1349	# "readahead" all extensions
947	sub load_extension {	1350	sub cache_extensions {
948	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
949		1352
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1356	}
975	die $@;
976	}	1357	};
977		1358
978	push @EXTS, $pkg;	1359	$grp
979	}	1360	}
980		1361
981	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
982	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1367	next unless -r $path;
984	eval {	1368
985	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	$progress = 1;
986	1	1425	}
987	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
988	}	1431	};
989	}	1432	}
990		1433
991	#############################################################################	1434	#############################################################################
992		1435
		1436	=back
		1437
993	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
994		1439
995	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
996		1441
997	=cut	1442	=cut
998		1443
999	package cf::player;	1444	package cf::player;
1000		1445
1001	use Coro::AIO;	1446	use Coro::AIO;
1002		1447
1003	=head3 cf::player	1448	=head3 cf::player
1004		1449
1005	=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	}
1006		1465
1007	=item cf::player::find $login	1466	=item cf::player::find $login
1008		1467
1009	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
1010		1469
…		…
1029		1488
1030	sub exists($) {	1489	sub exists($) {
1031	my ($login) = @_;	1490	my ($login) = @_;
1032		1491
1033	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
1035	}	1494	}
1036		1495
1037	sub find($) {	1496	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1498	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1508	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1509
1051	my $pl = load_pl path $login	1510	my $f = new_from_file cf::object::thawer path $login
1052	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;
1053	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
1054	}	1519	}
1055	}	1520	}
1056	}	1521	}
1057		1522
…		…
1066	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1067		1532
1068	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1070		1535
		1536	cf::get_slot 0.01;
		1537
1071	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1072	Coro::cede;	1539	cf::cede_to_tick;
1073	}	1540	}
1074		1541
1075	sub new($) {	1542	sub new($) {
1076	my ($login) = @_;	1543	my ($login) = @_;
1077		1544
…		…
1083	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1084		1551
1085	$self	1552	$self
1086	}	1553	}
1087		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
1088	=item $pl->quit_character	1565	=item $pl->quit_character
1089		1566
1090	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1092		1569
…		…
1096	my ($pl) = @_;	1573	my ($pl) = @_;
1097		1574
1098	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1099		1576
1100	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1101	$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
1102		1579
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1107		1586
1108	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1624	or return [];
1146		1625
1147	my @logins;	1626	my @logins;
1148		1627
1149	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") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1153		1638
1154	utf8::decode $login;	1639	utf8::decode $login;
1155	push @logins, $login;	1640	push @logins, $login;
1156	}	1641	}
1157		1642
…		…
1184	}	1669	}
1185		1670
1186	\@paths	1671	\@paths
1187	}	1672	}
1188		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1189	=item $player->ext_reply ($msgid, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1190		1679
1191	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1192		1681
1193	=cut	1682	=cut
1194		1683
1195	sub ext_reply($$%) {	1684	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1197		1686
1198	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1688	}
1202		1689
1203	=item $player->ext_event ($type, %msg)	1690	=item $player->ext_msg ($type, @msg)
1204		1691
1205	Sends an ext event to the client.	1692	Sends an ext event to the client.
1206		1693
1207	=cut	1694	=cut
1208		1695
1209	sub ext_event($$%) {	1696	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1697	my ($self, $type, @msg) = @_;
1211		1698
1212	$self->ns->ext_event ($type, %msg);	1699	$self->ns->ext_msg ($type, @msg);
1213	}	1700	}
1214		1701
1215	=head3 cf::region	1702	=head3 cf::region
1216		1703
1217	=over 4	1704	=over 4
…		…
1220		1707
1221	package cf::region;	1708	package cf::region;
1222		1709
1223	=item cf::region::find_by_path $path	1710	=item cf::region::find_by_path $path
1224		1711
1225	Tries to decuce the probable region for a map knowing only its path.	1712	Tries to decuce the likely region for a map knowing only its path.
1226		1713
1227	=cut	1714	=cut
1228		1715
1229	sub find_by_path($) {	1716	sub find_by_path($) {
1230	my ($path) = @_;	1717	my ($path) = @_;
1231		1718
1232	my ($match, $specificity);	1719	my ($match, $specificity);
1233		1720
1234	for my $region (list) {	1721	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1722	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1723	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1724	if $region->specificity > $specificity;
1238	}	1725	}
1239	}	1726	}
1240		1727
…		…
1261	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1263		1750
1264	sub generate_random_map {	1751	sub generate_random_map {
1265	my ($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
1266	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1757	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1304	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1305		1795
1306	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1307	local $self->{path};	1797	local $self->{path};
1308	local $self->{load_path};	1798	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1799
1312	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1313	}	1801	}
1314		1802
1315	sub normalise {	1803	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1363	return $self;	1851	return $self;
1364	}	1852	}
1365	}	1853	}
1366		1854
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1856	()
1369	}	1857	}
1370		1858
1371	sub init {	1859	sub init {
1372	my ($self) = @_;	1860	my ($self) = @_;
…		…
1394		1882
1395	# the temporary/swap location	1883	# the temporary/swap location
1396	sub save_path {	1884	sub save_path {
1397	my ($self) = @_;	1885	my ($self) = @_;
1398		1886
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1888	"$TMPDIR/$path.map"
1401	}	1889	}
1402		1890
1403	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1404	sub uniq_path {	1892	sub uniq_path {
1405	my ($self) = @_;	1893	my ($self) = @_;
1406		1894
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1896	"$UNIQUEDIR/$path"
1409	}	1897	}
1410		1898
1411	# and all this just because we cannot iterate over	1899	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1900	my ($self) = @_;
1415		1901
1416	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1418	}	1905	}
1419		1906
1420	sub unlink_save {	1907	sub unlink_save {
1421	my ($self) = @_;	1908	my ($self) = @_;
1422		1909
…		…
1427		1914
1428	sub load_header_from($) {	1915	sub load_header_from($) {
1429	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1430		1917
1431	utf8::encode $path;	1918	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	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;
1437		1927
1438	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1439		1929
1440	1	1930	1
1441	}	1931	}
…		…
1480	$self->load_header_orig	1970	$self->load_header_orig
1481	or return;	1971	or return;
1482	$self->prepare_orig;	1972	$self->prepare_orig;
1483	}	1973	}
1484		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
1485	$self->default_region (cf::region::find_by_path $self->{path})	1978	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1979	unless $self->default_region;
1487		1980
1488	1	1981	1
1489	}	1982	}
…		…
1492	sub find {	1985	sub find {
1493	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1494		1987
1495	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1496		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1498		1992
1499	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1502	or return;	1995	or return;
1503		1996
1504	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1505		1998
1506	$map->load_header	1999	$map->load_header
1507	or return;	2000	or return;
1508		2001
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1512	$map->reset;	2007	$map->reset;
1513	undef $guard;
1514	return find $path;	2008	return find $path;
1515	}	2009	}
1516		2010
1517	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1518	}	2012	}
…		…
1527	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1528		2022
1529	my $path = $self->{path};	2023	my $path = $self->{path};
1530		2024
1531	{	2025	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1533		2027
		2028	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2030
1536	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1537		2032
1538	$self->alloc;	2033	$self->alloc;
1539		2034
1540	$self->pre_load;	2035	$self->pre_load;
1541	Coro::cede;	2036	cf::cede_to_tick;
1542		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2040	$self->_load_objects ($f)
1544	or return;	2041	or return;
1545		2042
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1547	if delete $self->{load_original};	2044	if delete $self->{load_original};
1548		2045
1549	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2047	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2050	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1554	}	2054	}
1555	}	2055	}
1556		2056
1557	Coro::cede;	2057	$f->resolve_delayed_derefs;
		2058
		2059	cf::cede_to_tick;
1558	# now do the right thing for maps	2060	# now do the right thing for maps
1559	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2063	unless $self->difficulty;
1562	Coro::cede;	2064	cf::cede_to_tick;
1563		2065
1564	unless ($self->{deny_activate}) {	2066	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2067	$self->decay_objects;
1566	$self->fix_auto_apply;	2068	$self->fix_auto_apply;
1567	$self->update_buttons;	2069	$self->update_buttons;
1568	Coro::cede;	2070	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2071	$self->activate;
1572	}	2072	}
1573		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2078	}
1576		2079
1577	$self->post_load;	2080	$self->post_load;
1578	}	2081	}
1579		2082
…		…
1581	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1582		2085
1583	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2087	if $self->per_player;
1585		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1586	$self	2092	$self
1587	}	2093	}
1588		2094
1589	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2096	sub load_neighbours {
1591	my ($map) = @_;	2097	my ($map) = @_;
1592		2098
1593	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1594		2100
1595	for (0 .. 3) {	2101	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1597	or next;	2103	or next;
1598	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1599	or next;	2105	or next;
1600	$neigh->load;	2106	$neigh->load;
1601		2107
		2108	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2111	}
1605		2112
1606	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1608	or next;	2116	or next;
1609	$neigh->load;	2117	$neigh->load;
1610	}	2118	}
1611	}	2119	}
1612		2120
…		…
1617	}	2125	}
1618		2126
1619	sub do_load_sync {	2127	sub do_load_sync {
1620	my ($map) = @_;	2128	my ($map) = @_;
1621		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1622	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1623	}	2134	}
1624		2135
1625	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1627		2138
1628	sub find_async {	2139	sub find_async {
1629	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1630		2141
1631	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1632		2143
1633	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2146	}
1636		2147
1637	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1638	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1639	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2155	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2156	$map->load if $v;
		2157	}
1644		2158
1645	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1646	}	2160	}
1647	}	2161	}
1648	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1649	};	2163	};
1650	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1653	}	2167	}
1654		2168
1655	sub save {	2169	sub save {
1656	my ($self) = @_;	2170	my ($self) = @_;
1657		2171
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2173
1660	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1661		2175
1662	return unless $self->dirty;	2176	return unless $self->dirty;
1663		2177
…		…
1669	return if $self->{deny_save};	2183	return if $self->{deny_save};
1670		2184
1671	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1672		2186
1673	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1675	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1676		2193
1677	if ($uniq) {	2194	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2197	} else {
…		…
1686	my ($self) = @_;	2203	my ($self) = @_;
1687		2204
1688	# save first because save cedes	2205	# save first because save cedes
1689	$self->save;	2206	$self->save;
1690		2207
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2209
1693	return if $self->players;	2210	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1695	return if $self->{deny_save};	2212	return if $self->{deny_save};
1696		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1697	$self->clear;	2218	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2219	}
1700		2220
1701	sub reset_at {	2221	sub reset_at {
1702	my ($self) = @_;	2222	my ($self) = @_;
1703		2223
1704	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1707		2226
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2229
…		…
1721	my ($self) = @_;	2240	my ($self) = @_;
1722		2241
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2243
1725	return if $self->players;	2244	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2245
1728	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1729		2247
1730	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1731		2249
1732	# need to save uniques path	2250	# need to save uniques path
1733	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2255	if $uniq;
1738	}	2256	}
1739		2257
1740	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1741		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2262	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2263
1746	$self->unlink_save;	2264	$self->unlink_save;
1747	$self->destroy;	2265	$self->destroy;
1748	}	2266	}
1749		2267
1750	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1751		2269
1752	sub nuke {	2270	sub nuke {
1753	my ($self) = @_;	2271	my ($self) = @_;
1754		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1755	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1756		2277
1757	$self->unlink_save;	2278	$self->unlink_save;
1758		2279
1759	bless $self, "cf::map";	2280	bless $self, "cf::map";
1760	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2285
1765	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1766		2288
1767	$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	]
1768	}	2326	}
1769		2327
1770	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1771		2329
1772	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2331	instantiated unique items. May block.
1774		2332
1775	=cut	2333	=cut
1776		2334
1777	sub unique_maps() {	2335	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2336	[
1779	or return;	2337	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2338	utf8::decode $_;
1785	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2341	? ()
1788	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2344	]
1790
1791	\@paths
1792	}	2345	}
1793		2346
1794	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	}
1795		2378
1796	=back	2379	=back
1797		2380
1798	=head3 cf::object	2381	=head3 cf::object
1799		2382
…		…
1803		2386
1804	=over 4	2387	=over 4
1805		2388
1806	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1807		2390
1808	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.
1809		2393
1810	=cut	2394	=cut
1811		2395
1812	sub inv_recursive_;	2396	sub inv_recursive_;
1813	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1816		2400
1817	sub inv_recursive {	2401	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1819	}	2403	}
1820		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
1821	package cf;	2433	package cf;
1822		2434
1823	=back	2435	=back
1824		2436
1825	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1831	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>
1832	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
1833	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1834		2446
1835	=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	};
1836		2462
1837	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2464	# with dialog boxes.
1839	#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
1840	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1842		2468
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2470
1845	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1847	} 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 {
1848	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1850	}	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 (@_);
1851	}	2496	}
1852		2497
1853	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1854		2499
1855	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1868		2513
1869	=item $player_object->enter_link	2514	=item $player_object->enter_link
1870		2515
1871	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}>).
1872		2517
1873	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.
1874	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.
1875		2522
1876	Will never block.	2523	Will never block.
1877		2524
1878	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1879		2526
…		…
1902	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1903		2550
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2552
1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1908		2555
1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1910	}	2557	}
1911		2558
1912	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1914		2563
1915	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1916		2565
1917	unless ($map) {	2566	unless ($map) {
1918	# restore original map position	2567	# restore original map position
…		…
1929	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1930	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1931		2580
1932	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1933	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1934	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1935		2584
1936	$map->load;	2585	$map->load;
1937	$map->load_diag;	2586	$map->load_neighbours;
1938		2587
1939	return unless $self->contr->active;	2588	return unless $self->contr->active;
1940	$self->activate_recursive;
1941		2589
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1944	}
1945		2592
1946	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1947	on_logout => sub {	2594	$self->activate_recursive;
1948	my ($pl) = @_;	2595	}
1949		2596
1950	# abort map switching before logout	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1951	if ($pl->ob->{_link_pos}) {
1952	cf::sync_job {
1953	$pl->ob->leave_link
1954	};
1955	}
1956	},
1957	on_login => sub {
1958	my ($pl) = @_;
1959		2598
1960	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1961	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1962	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1963	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1964	(async {	2603	be called at the end of this process.
1965	$pl->ob->reply (undef,
1966	"There was an internal problem at your last logout, "
1967	. "the server will try to bring you to your intended destination in a second.",
1968	cf::NDI_RED);
1969	# we need this sleep as the login has a concurrent enter_exit running
1970	# and this sleep increases chances of the player not ending up in scorn
1971	Coro::Timer::sleep 1;
1972	$pl->ob->leave_link;
1973	})->prio (2);
1974	}
1975	},
1976	);
1977		2604
1978	=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 >>.
1979		2607
1980	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1981		2611
1982	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1983	my ($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;
1984		2617
1985	$self->enter_link;	2618	$self->enter_link;
1986		2619
1987	(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
1988	my $map = eval {	2642	my $map = eval {
1989	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1990	$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
1991	$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 $@;
1992	} or	2658	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1994		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1996	})->prio (1);	2666	})->prio (1);
1997	}	2667	}
1998		2668
1999	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
2000		2670
…		…
2020	}	2690	}
2021		2691
2022	sub prepare_random_map {	2692	sub prepare_random_map {
2023	my ($exit) = @_;	2693	my ($exit) = @_;
2024		2694
2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
2026
2027	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
2028	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
2029	# that depends on the exit object	2697	# that depends on the exit object
2030		2698
2031	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
2033	if ($exit->map) {	2701	if ($exit->map) {
2034	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
2035	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
2036	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
2037	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
2038	}	2708	}
2039		2709
2040	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
2041		2711
2042	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2043	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
2044	my $meta = "$RANDOMDIR/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
2045		2715
2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2047	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
2048	undef $fh;	2718	undef $fh;
2049	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
2050		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
2051	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
2052	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
2053	}	2727	}
2054	}	2728	}
2055		2729
2056	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
2057	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
2058		2732
2059	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
2060		2734
2061	if ($exit->slaying eq "/!") {
2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
2063	# the problem is that $exit might not survive long enough
2064	# so it needs to be done right now, right here
2065	cf::sync_job { prepare_random_map $exit };
2066	}
2067
2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2069	my $hp = $exit->stats->hp;
2070	my $sp = $exit->stats->sp;
2071
2072	$self->enter_link;	2735	$self->enter_link;
2073		2736
2074	(async {	2737	(async {
2075	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
2076	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
2077	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
2078		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
2079	1;	2761	1
2080	}) {	2762	}) {
2081	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
2082	. "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. "
2083	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
2084	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
2085		2767
2086	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2105		2787
2106	utf8::encode $text;	2788	utf8::encode $text;
2107	$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);
2108	}	2790	}
2109		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
2110	=item $client->ext_event ($type, %msg)	2979	=item $client->ext_msg ($type, @msg)
2111		2980
2112	Sends an exti event to the client.	2981	Sends an ext event to the client.
2113		2982
2114	=cut	2983	=cut
2115		2984
2116	sub cf::client::ext_event($$%) {	2985	sub cf::client::ext_msg($$@) {
2117	my ($self, $type, %msg) = @_;	2986	my ($self, $type, @msg) = @_;
2118		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
2119	$msg{msgtype} = "event_$type";	2991	push @msg, msgtype => "event_$type";
2120	$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	}
2121	}	3012	}
2122		3013
2123	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
2124		3015
2125	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
2126	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>,
2127	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>.
2128		3019
2129	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
2130	reliable at some point in the future.	3021	become reliable at some point in the future.
2131		3022
2132	=cut	3023	=cut
2133		3024
2134	sub cf::client::query {	3025	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	3034	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		3036
2146	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2148	}	3041	}
2149		3042
2150	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	},
2151	on_reply => sub {	3049	on_reply => sub {
2152	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2153		3051
2154	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2155	# get handled first	3053	# get handled first
…		…
2167	} else {	3065	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	3067	}
2170	}	3068	}
2171	},	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	},
2172	);	3096	);
2173		3097
2174	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2175		3099
2176	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2217	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2218	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2219		3143
2220	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2221		3145
2222	$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	));
2223		3151
2224	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2225		3153
2226	=pod	3154	=pod
2227		3155
2228	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2229		3157
2230	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
2231	cf::object::player player	3163	cf::object::player
2232	cf::player peaceful	3164	player
2233	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2234		3171
2235	=cut	3172	=cut
2236		3173
2237	for (	3174	for (
2238	["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)],
2239	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2241	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2242	) {	3181	) {
2243	no strict 'refs';	3182	no strict 'refs';
2244	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2245	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2262	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2263		3202
2264	my $qcode = $code;	3203	my $qcode = $code;
2265	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2266	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2267		3208
2268	local $_;	3209	local $_;
2269	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2270		3211
2271	my $eval =	3212	my $eval =
…		…
2314	=back	3255	=back
2315		3256
2316	=cut	3257	=cut
2317		3258
2318	#############################################################################	3259	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$family> should best start with the name of the extension
2327	using it, it should be unique.
2328
2329	=over 4
2330
2331	=item $value = cf::db_get $family => $key
2332
2333	Returns a single value from the database.
2334
2335	=item cf::db_put $family => $key => $value
2336
2337	Stores the given C<$value> in the family.
2338
2339	=cut
2340
2341	our $DB;
2342
2343	sub db_init {
2344	unless ($DB) {
2345	$DB = BDB::db_create $DB_ENV;
2346
2347	cf::sync_job {
2348	eval {
2349	$DB->set_flags (BDB::CHKSUM);
2350
2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2353	cf::cleanup "db_open(db): $!" if $!;
2354	};
2355	cf::cleanup "db_open(db): $@" if $@;
2356	};
2357	}
2358	}
2359
2360	sub db_get($$) {
2361	my $key = "$_[0]/$_[1]";
2362
2363	cf::sync_job {
2364	BDB::db_get $DB, undef, $key, my $data;
2365
2366	$! ? ()
2367	: $data
2368	}
2369	}
2370
2371	sub db_put($$$) {
2372	BDB::dbreq_pri 4;
2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2374	}
2375
2376	=item cf::cache $id => [$paths...], $processversion => $process
2377
2378	Generic caching function that returns the value of the resource $id,
2379	caching and regenerating as required.
2380
2381	This function can block.
2382
2383	=cut
2384
2385	sub cache {
2386	my ($id, $src, $processversion, $process) = @_;
2387
2388	my $meta =
2389	join "\x00",
2390	$processversion,
2391	map {
2392	aio_stat $_
2393	and Carp::croak "$_: $!";
2394
2395	($_, (stat _)[7,9])
2396	} @$src;
2397
2398	my $dbmeta = db_get cache => "$id/meta";
2399	if ($dbmeta ne $meta) {
2400	# changed, we may need to process
2401
2402	my @data;
2403	my $md5;
2404
2405	for (0 .. $#$src) {
2406	0 <= aio_load $src->[$_], $data[$_]
2407	or Carp::croak "$src->[$_]: $!";
2408	}
2409
2410	# if processing is expensive, check
2411	# checksum first
2412	if (1) {
2413	$md5 =
2414	join "\x00",
2415	$processversion,
2416	map {
2417	Coro::cede;
2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
2419	} 0.. $#$src;
2420
2421
2422	my $dbmd5 = db_get cache => "$id/md5";
2423	if ($dbmd5 eq $md5) {
2424	db_put cache => "$id/meta", $meta;
2425
2426	return db_get cache => "$id/data";
2427	}
2428	}
2429
2430	my $t1 = Time::HiRes::time;
2431	my $data = $process->(\@data);
2432	my $t2 = Time::HiRes::time;
2433
2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2435
2436	db_put cache => "$id/data", $data;
2437	db_put cache => "$id/md5" , $md5;
2438	db_put cache => "$id/meta", $meta;
2439
2440	return $data;
2441	}
2442
2443	db_get cache => "$id/data"
2444	}
2445
2446	=item fork_call { }, $args
2447
2448	Executes the given code block with the given arguments in a seperate
2449	process, returning the results. Everything must be serialisable with
2450	Coro::Storable. May, of course, block. Note that the executed sub may
2451	never block itself or use any form of Event handling.
2452
2453	=cut
2454
2455	sub fork_call(&@) {
2456	my ($cb, @args) = @_;
2457
2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2459	# or die "socketpair: $!";
2460	pipe my $fh1, my $fh2
2461	or die "pipe: $!";
2462
2463	if (my $pid = fork) {
2464	close $fh2;
2465
2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2467	$res = Coro::Storable::thaw $res;
2468
2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2470
2471	die $$res unless "ARRAY" eq ref $res;
2472
2473	return wantarray ? @$res : $res->[-1];
2474	} else {
2475	reset_signals;
2476	local $SIG{__WARN__};
2477	local $SIG{__DIE__};
2478	eval {
2479	close $fh1;
2480
2481	my @res = eval { $cb->(@args) };
2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2483	};
2484
2485	warn $@ if $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491
2492	#############################################################################
2493	# the server's init and main functions	3260	# the server's init and main functions
2494		3261
2495	sub load_facedata($) {	3262	sub load_facedata($) {
2496	my ($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;
2497		3270
2498	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2499		3272
2500	my $facedata;	3273	my $facedata;
2501	0 < aio_load $path, $facedata	3274	0 < aio_load $path, $facedata
…		…
2504	$facedata = Coro::Storable::thaw $facedata;	3277	$facedata = Coro::Storable::thaw $facedata;
2505		3278
2506	$facedata->{version} == 2	3279	$facedata->{version} == 2
2507	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2508		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
2509	{	3289	{
2510	my $faces = $facedata->{faceinfo};	3290	my $faces = $facedata->{faceinfo};
2511		3291
2512	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2517	Coro::cede;	3299
		3300	cf::cede_to_tick;
2518	}	3301	}
2519		3302
2520	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2522	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2523	or next;	3307	or next;
		3308
2524	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	3312	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	3314	}
2529	Coro::cede;	3315
		3316	cf::cede_to_tick;
2530	}	3317	}
2531	}	3318	}
2532		3319
2533	{	3320	{
2534	my $anims = $facedata->{animinfo};	3321	my $anims = $facedata->{animinfo};
2535		3322
2536	while (my ($anim, $info) = each %$anims) {	3323	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	3325	cf::cede_to_tick;
2539	}	3326	}
2540		3327
2541	cf::anim::invalidate_all; # d'oh	3328	cf::anim::invalidate_all; # d'oh
2542	}	3329	}
2543		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
2544	1	3366	1
2545	}	3367	}
2546		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	$status
		3405	}
		3406
2547	sub reload_regions {	3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
2548	load_resource_file "$MAPDIR/regions"	3412	load_resource_file "$MAPDIR/regions"
2549	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 $_->{match};
		3418	}
2550	}	3419	}
2551		3420
2552	sub reload_facedata {	3421	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	3422	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	3423	or die "unable to load facedata\n";
…		…
2565	}	3434	}
2566		3435
2567	sub reload_resources {	3436	sub reload_resources {
2568	warn "reloading resource files...\n";	3437	warn "reloading resource files...\n";
2569		3438
2570	reload_regions;
2571	reload_facedata;	3439	reload_facedata;
2572	reload_archetypes;	3440	reload_archetypes;
		3441	reload_regions;
2573	reload_treasures;	3442	reload_treasures;
2574		3443
2575	warn "finished reloading resource files\n";	3444	warn "finished reloading resource files\n";
2576	}	3445	}
2577		3446
2578	sub init {	3447	sub reload_config {
2579	reload_resources;	3448	warn "reloading config file...\n";
2580	}
2581		3449
2582	sub cfg_load {
2583	open my $fh, "<:utf8", "$CONFDIR/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2584	or return;	3451	or return;
2585		3452
2586	local $/;	3453	local $/;
2587	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2588		3455
2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2590		3457
2591	$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};
2592	$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};
…		…
2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2597	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2598	};	3465	};
2599	warn $@ if $@;	3466	warn $@ if $@;
2600	}	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;
2601	}	3498	}
2602		3499
2603	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
2604	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2605	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2606	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#
2607	(async {	3518	(async {
2608	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2609	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2610	};	3522	};
2611		3523
2612	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	reload_resources;
		3528	reload_config;
2613	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
2614	load_extensions;	3542	load_extensions;
2615		3543
2616	$TICK_WATCHER->start;	3544	utime time, time, $RUNTIMEFILE;
2617	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;
2618	}	3554	}
2619		3555
2620	#############################################################################	3556	#############################################################################
2621	# initialisation and cleanup	3557	# initialisation and cleanup
2622		3558
2623	# install some emergency cleanup handlers	3559	# install some emergency cleanup handlers
2624	BEGIN {	3560	BEGIN {
		3561	our %SIGWATCHER = ();
2625	for my $signal (qw(INT HUP TERM)) {	3562	for my $signal (qw(INT HUP TERM)) {
2626	Event->signal (	3563	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2627	reentrant => 0,
2628	data => WF_AUTOCANCEL,
2629	signal => $signal,
2630	prio => 0,
2631	cb => sub {
2632	cf::cleanup "SIG$signal";	3564	cf::cleanup "SIG$signal";
2633	},
2634	);	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
2635	}	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 };
2636	}	3653	}
2637		3654
2638	sub emergency_save() {	3655	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	3656	my $freeze_guard = cf::freeze_mainloop;
2640		3657
2641	warn "enter emergency perl save\n";	3658	warn "emergency_perl_save: enter\n";
2642		3659
2643	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
2644	# use a peculiar iteration method to avoid tripping on perl	3666	# use a peculiar iteration method to avoid tripping on perl
2645	# refcount bugs in for. also avoids problems with players	3667	# refcount bugs in for. also avoids problems with players
2646	# and maps saved/destroyed asynchronously.	3668	# and maps saved/destroyed asynchronously.
2647	warn "begin emergency player save\n";	3669	warn "emergency_perl_save: begin player save\n";
2648	for my $login (keys %cf::PLAYER) {	3670	for my $login (keys %cf::PLAYER) {
2649	my $pl = $cf::PLAYER{$login} or next;	3671	my $pl = $cf::PLAYER{$login} or next;
2650	$pl->valid or next;	3672	$pl->valid or next;
		3673	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2651	$pl->save;	3674	$pl->save;
2652	}	3675	}
2653	warn "end emergency player save\n";	3676	warn "emergency_perl_save: end player save\n";
2654		3677
2655	warn "begin emergency map save\n";	3678	warn "emergency_perl_save: begin map save\n";
2656	for my $path (keys %cf::MAP) {	3679	for my $path (keys %cf::MAP) {
2657	my $map = $cf::MAP{$path} or next;	3680	my $map = $cf::MAP{$path} or next;
2658	$map->valid or next;	3681	$map->valid or next;
2659	$map->save;	3682	$map->save;
2660	}	3683	}
2661	warn "end emergency map save\n";	3684	warn "emergency_perl_save: end map save\n";
2662		3685
2663	warn "begin emergency database checkpoint\n";	3686	warn "emergency_perl_save: begin database checkpoint\n";
2664	BDB::db_env_txn_checkpoint $DB_ENV;	3687	BDB::db_env_txn_checkpoint $DB_ENV;
2665	warn "end emergency database checkpoint\n";	3688	warn "emergency_perl_save: end database checkpoint\n";
		3689
		3690	warn "emergency_perl_save: begin write uuid\n";
		3691	write_uuid_sync 1;
		3692	warn "emergency_perl_save: end write uuid\n";
2666	};	3693	};
2667		3694
		3695	warn "emergency_perl_save: starting sync()\n";
		3696	IO::AIO::aio_sync sub {
		3697	warn "emergency_perl_save: finished sync()\n";
		3698	};
		3699
2668	warn "leave emergency perl save\n";	3700	warn "emergency_perl_save: leave\n";
2669	}	3701	}
2670		3702
2671	sub post_cleanup {	3703	sub post_cleanup {
2672	my ($make_core) = @_;	3704	my ($make_core) = @_;
2673		3705
2674	warn Carp::longmess "post_cleanup backtrace"	3706	warn Carp::longmess "post_cleanup backtrace"
2675	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#
2676	}	3737	}
2677		3738
2678	sub do_reload_perl() {	3739	sub do_reload_perl() {
2679	# can/must only be called in main	3740	# can/must only be called in main
2680	if ($Coro::current != $Coro::main) {	3741	if ($Coro::current != $Coro::main) {
2681	warn "can only reload from main coroutine";	3742	warn "can only reload from main coroutine";
2682	return;	3743	return;
2683	}	3744	}
2684		3745
		3746	return if $RELOAD++;
		3747
		3748	my $t1 = EV::time;
		3749
		3750	while ($RELOAD) {
2685	warn "reloading...";	3751	warn "reloading...";
2686		3752
2687	warn "entering sync_job";	3753	warn "entering sync_job";
2688		3754
2689	cf::sync_job {	3755	cf::sync_job {
2690	cf::write_runtime; # external watchdog should not bark	3756	cf::write_runtime_sync; # external watchdog should not bark
2691	cf::emergency_save;	3757	cf::emergency_save;
2692	cf::write_runtime; # external watchdog should not bark	3758	cf::write_runtime_sync; # external watchdog should not bark
2693		3759
2694	warn "syncing database to disk";	3760	warn "syncing database to disk";
2695	BDB::db_env_txn_checkpoint $DB_ENV;	3761	BDB::db_env_txn_checkpoint $DB_ENV;
2696		3762
2697	# 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
2698		3764
2699	warn "cancelling all WF_AUTOCANCEL watchers";
2700	for (Event::all_watchers) {
2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2702	}
2703
2704	warn "flushing outstanding aio requests";	3765	warn "flushing outstanding aio requests";
2705	for (;;) {
2706	BDB::flush;
2707	IO::AIO::flush;
2708	Coro::cede;
2709	last unless IO::AIO::nreqs || BDB::nreqs;	3766	while (IO::AIO::nreqs || BDB::nreqs) {
2710	warn "iterate...";	3767	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2711	}
2712
2713	++$RELOAD;
2714
2715	warn "cancelling all extension coros";
2716	$_->cancel for values %EXT_CORO;
2717	%EXT_CORO = ();
2718
2719	warn "removing commands";
2720	%COMMAND = ();
2721
2722	warn "removing ext commands";
2723	%EXTCMD = ();
2724
2725	warn "unloading/nuking all extensions";
2726	for my $pkg (@EXTS) {
2727	warn "... unloading $pkg";
2728
2729	if (my $cb = $pkg->can ("unload")) {
2730	eval {
2731	$cb->($pkg);
2732	1
2733	} or warn "$pkg unloaded, but with errors: $@";
2734	}	3768	}
2735		3769
2736	warn "... nuking $pkg";	3770	warn "cancelling all extension coros";
2737	Symbol::delete_package $pkg;	3771	$_->cancel for values %EXT_CORO;
2738	}	3772	%EXT_CORO = ();
2739		3773
2740	warn "unloading all perl modules loaded from $LIBDIR";	3774	warn "removing commands";
2741	while (my ($k, $v) = each %INC) {	3775	%COMMAND = ();
2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2743		3776
		3777	warn "removing ext/exti commands";
		3778	%EXTCMD = ();
		3779	%EXTICMD = ();
		3780
		3781	warn "unloading/nuking all extensions";
		3782	for my $pkg (@EXTS) {
2744	warn "... unloading $k";	3783	warn "... unloading $pkg";
2745	delete $INC{$k};
2746		3784
2747	$k =~ s/\.pm$//;
2748	$k =~ s/\//::/g;
2749
2750	if (my $cb = $k->can ("unload_module")) {	3785	if (my $cb = $pkg->can ("unload")) {
		3786	eval {
2751	$cb->();	3787	$cb->($pkg);
		3788	1
		3789	} or warn "$pkg unloaded, but with errors: $@";
		3790	}
		3791
		3792	warn "... clearing $pkg";
		3793	clear_package $pkg;
2752	}	3794	}
2753		3795
2754	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;
2755	}	3811	}
2756		3812
2757	warn "getting rid of safe::, as good as possible";	3813	warn "getting rid of safe::, as good as possible";
2758	Symbol::delete_package "safe::$_"	3814	clear_package "safe::$_"
2759	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);
2760		3816
2761	warn "unloading cf.pm \"a bit\"";	3817	warn "unloading cf.pm \"a bit\"";
2762	delete $INC{"cf.pm"};	3818	delete $INC{"cf.pm"};
2763	delete $INC{"cf/pod.pm"};	3819	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2764		3820
2765	# don't, removes xs symbols, too,	3821	# don't, removes xs symbols, too,
2766	# and global variables created in xs	3822	# and global variables created in xs
2767	#Symbol::delete_package __PACKAGE__;	3823	#clear_package __PACKAGE__;
2768		3824
2769	warn "unload completed, starting to reload now";	3825	warn "unload completed, starting to reload now";
2770		3826
2771	warn "reloading cf.pm";	3827	warn "reloading cf.pm";
2772	require cf;	3828	require cf;
2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3829	cf::_connect_to_perl_1;
2774		3830
2775	warn "loading config and database again";	3831	warn "loading config and database again";
2776	cf::cfg_load;	3832	cf::reload_config;
2777		3833
2778	warn "loading extensions";	3834	warn "loading extensions";
2779	cf::load_extensions;	3835	cf::load_extensions;
2780		3836
		3837	if ($REATTACH_ON_RELOAD) {
2781	warn "reattaching attachments to objects/players";	3838	warn "reattaching attachments to objects/players";
2782	_global_reattach; # objects, sockets	3839	_global_reattach; # objects, sockets
2783	warn "reattaching attachments to maps";	3840	warn "reattaching attachments to maps";
2784	reattach $_ for values %MAP;	3841	reattach $_ for values %MAP;
2785	warn "reattaching attachments to players";	3842	warn "reattaching attachments to players";
2786	reattach $_ for values %PLAYER;	3843	reattach $_ for values %PLAYER;
		3844	}
2787		3845
		3846	warn "running post_init jobs";
		3847	(pop @POST_INIT)->(1) while @POST_INIT;
		3848
2788	warn "leaving sync_job";	3849	warn "leaving sync_job";
2789		3850
2790	1	3851	1
2791	} or do {	3852	} or do {
2792	warn $@;	3853	warn $@;
2793	warn "error while reloading, exiting.";	3854	cf::cleanup "error while reloading, exiting.";
2794	exit 1;
2795	};	3855	};
2796		3856
2797	warn "reloaded";	3857	warn "reloaded";
		3858	--$RELOAD;
		3859	}
		3860
		3861	$t1 = EV::time - $t1;
		3862	warn "reload completed in ${t1}s\n";
2798	};	3863	};
2799		3864
2800	our $RELOAD_WATCHER; # used only during reload	3865	our $RELOAD_WATCHER; # used only during reload
2801		3866
2802	sub reload_perl() {	3867	sub reload_perl() {
2803	# doing reload synchronously and two reloads happen back-to-back,	3868	# doing reload synchronously and two reloads happen back-to-back,
2804	# coro crashes during coro_state_free->destroy here.	3869	# coro crashes during coro_state_free->destroy here.
2805		3870
2806	$RELOAD_WATCHER ||= Event->timer (	3871	$RELOAD_WATCHER ||= cf::async {
2807	reentrant => 0,	3872	Coro::AIO::aio_wait cache_extensions;
2808	after => 0,	3873
2809	data => WF_AUTOCANCEL,	3874	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2810	cb => sub {
2811	do_reload_perl;	3875	do_reload_perl;
2812	undef $RELOAD_WATCHER;	3876	undef $RELOAD_WATCHER;
2813	},	3877	};
2814	);	3878	};
2815	}	3879	}
2816		3880
2817	register_command "reload" => sub {	3881	register_command "reload" => sub {
2818	my ($who, $arg) = @_;	3882	my ($who, $arg) = @_;
2819		3883
2820	if ($who->flag (FLAG_WIZ)) {	3884	if ($who->flag (FLAG_WIZ)) {
2821	$who->message ("reloading server.");	3885	$who->message ("reloading server.");
		3886	async {
		3887	$Coro::current->{desc} = "perl_reload";
2822	async { reload_perl };	3888	reload_perl;
		3889	};
2823	}	3890	}
2824	};	3891	};
2825		3892
2826	unshift @INC, $LIBDIR;	3893	unshift @INC, $LIBDIR;
2827		3894
…		…
2829		3896
2830	our @WAIT_FOR_TICK;	3897	our @WAIT_FOR_TICK;
2831	our @WAIT_FOR_TICK_BEGIN;	3898	our @WAIT_FOR_TICK_BEGIN;
2832		3899
2833	sub wait_for_tick {	3900	sub wait_for_tick {
2834	return unless $TICK_WATCHER->is_active;
2835	return if $Coro::current == $Coro::main;	3901	return if tick_inhibit || $Coro::current == $Coro::main;
2836		3902
2837	my $signal = new Coro::Signal;	3903	my $signal = new Coro::Signal;
2838	push @WAIT_FOR_TICK, $signal;	3904	push @WAIT_FOR_TICK, $signal;
2839	$signal->wait;	3905	$signal->wait;
2840	}	3906	}
2841		3907
2842	sub wait_for_tick_begin {	3908	sub wait_for_tick_begin {
2843	return unless $TICK_WATCHER->is_active;
2844	return if $Coro::current == $Coro::main;	3909	return if tick_inhibit || $Coro::current == $Coro::main;
2845		3910
2846	my $signal = new Coro::Signal;	3911	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	3912	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	3913	$signal->wait;
2849	}	3914	}
2850		3915
2851	$TICK_WATCHER = Event->timer (	3916	sub tick {
2852	reentrant => 0,
2853	parked => 1,
2854	prio => 0,
2855	at => $NEXT_TICK || $TICK,
2856	data => WF_AUTOCANCEL,
2857	cb => sub {
2858	if ($Coro::current != $Coro::main) {	3917	if ($Coro::current != $Coro::main) {
2859	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"
2860	unless ++$bug_warning > 10;	3919	unless ++$bug_warning > 10;
2861	return;	3920	return;
2862	}	3921	}
2863		3922
2864	$NOW = $tick_start = Event::time;
2865
2866	cf::server_tick; # one server iteration	3923	cf::server_tick; # one server iteration
2867		3924
2868	$RUNTIME += $TICK;
2869	$NEXT_TICK += $TICK;
2870
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3925	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2872	$NEXT_RUNTIME_WRITE = $NOW + 10;	3926	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2873	Coro::async_pool {	3927	Coro::async_pool {
		3928	$Coro::current->{desc} = "runtime saver";
2874	write_runtime	3929	write_runtime_sync
2875	or warn "ERROR: unable to write runtime file: $!";	3930	or warn "ERROR: unable to write runtime file: $!";
2876	};
2877	}	3931	};
		3932	}
2878		3933
2879	# my $AFTER = Event::time;
2880	# warn $AFTER - $NOW;#d#
2881
2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3934	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2883	$sig->send;	3935	$sig->send;
2884	}	3936	}
2885	while (my $sig = shift @WAIT_FOR_TICK) {	3937	while (my $sig = shift @WAIT_FOR_TICK) {
2886	$sig->send;	3938	$sig->send;
2887	}	3939	}
2888		3940
2889	$NOW = Event::time;	3941	$LOAD = ($NOW - $TICK_START) / $TICK;
2890
2891	# if we are delayed by four ticks or more, skip them all
2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2893
2894	$TICK_WATCHER->at ($NEXT_TICK);
2895	$TICK_WATCHER->start;
2896
2897	$LOAD = ($NOW - $tick_start) / $TICK;
2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3942	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2899		3943
2900	_post_tick;	3944	if (0) {
2901		3945	if ($NEXT_TICK) {
2902		3946	my $jitter = $TICK_START - $NEXT_TICK;
		3947	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3948	warn "jitter $JITTER\n";#d#
		3949	}
2903	},	3950	}
2904	);	3951	}
2905		3952
2906	{	3953	{
2907	BDB::max_poll_time $TICK * 0.1;	3954	# configure BDB
2908	$BDB_POLL_WATCHER = Event->io (	3955
2909	reentrant => 0,
2910	fd => BDB::poll_fileno,
2911	poll => 'r',
2912	prio => 0,
2913	data => WF_AUTOCANCEL,
2914	cb => \&BDB::poll_cb,
2915	);
2916	BDB::min_parallel 8;	3956	BDB::min_parallel 8;
2917		3957	BDB::max_poll_reqs $TICK * 0.1;
2918	BDB::set_sync_prepare {	3958	$AnyEvent::BDB::WATCHER->priority (1);
2919	my $status;
2920	my $current = $Coro::current;
2921	(
2922	sub {
2923	$status = $!;
2924	$current->ready; undef $current;
2925	},
2926	sub {
2927	Coro::schedule while defined $current;
2928	$! = $status;
2929	},
2930	)
2931	};
2932		3959
2933	unless ($DB_ENV) {	3960	unless ($DB_ENV) {
2934	$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);
2935		3967
2936	cf::sync_job {	3968	cf::sync_job {
2937	eval {	3969	eval {
2938	BDB::db_env_open	3970	BDB::db_env_open
2939	$DB_ENV,	3971	$DB_ENV,
…		…
2941	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
2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3974	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2943	0666;	3975	0666;
2944		3976
2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3977	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2946
2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2948	$DB_ENV->set_lk_detect;
2949	};	3978	};
2950		3979
2951	cf::cleanup "db_env_open(db): $@" if $@;	3980	cf::cleanup "db_env_open(db): $@" if $@;
2952	};	3981	};
2953	}	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	};
2954	}	3993	}
2955		3994
2956	{	3995	{
		3996	# configure IO::AIO
		3997
2957	IO::AIO::min_parallel 8;	3998	IO::AIO::min_parallel 8;
2958
2959	undef $Coro::AIO::WATCHER;
2960	IO::AIO::max_poll_time $TICK * 0.1;	3999	IO::AIO::max_poll_time $TICK * 0.1;
2961	$AIO_POLL_WATCHER = Event->io (	4000	undef $AnyEvent::AIO::WATCHER;
2962	reentrant => 0,
2963	data => WF_AUTOCANCEL,
2964	fd => IO::AIO::poll_fileno,
2965	poll => 'r',
2966	prio => 6,
2967	cb => \&IO::AIO::poll_cb,
2968	);
2969	}	4001	}
2970		4002
2971	my $_log_backtrace;	4003	my $_log_backtrace;
2972		4004
2973	sub _log_backtrace {	4005	sub _log_backtrace {
…		…
2976	$msg =~ s/\n//;	4008	$msg =~ s/\n//;
2977		4009
2978	# limit the # of concurrent backtraces	4010	# limit the # of concurrent backtraces
2979	if ($_log_backtrace < 2) {	4011	if ($_log_backtrace < 2) {
2980	++$_log_backtrace;	4012	++$_log_backtrace;
		4013	my $perl_bt = Carp::longmess $msg;
2981	async {	4014	async {
		4015	$Coro::current->{desc} = "abt $msg";
		4016
2982	my @bt = fork_call {	4017	my @bt = fork_call {
2983	@addr = map { sprintf "%x", $_ } @addr;	4018	@addr = map { sprintf "%x", $_ } @addr;
2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4019	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4020	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2986	or die "addr2line: $!";	4021	or die "addr2line: $!";
…		…
2994	}	4029	}
2995		4030
2996	@funcs	4031	@funcs
2997	};	4032	};
2998		4033
2999	LOG llevInfo, "[ABT] $msg\n";	4034	LOG llevInfo, "[ABT] $perl_bt\n";
		4035	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3000	LOG llevInfo, "[ABT] $_\n" for @bt;	4036	LOG llevInfo, "[ABT] $_\n" for @bt;
3001	--$_log_backtrace;	4037	--$_log_backtrace;
3002	};	4038	};
3003	} else {	4039	} else {
3004	LOG llevInfo, "[ABT] $msg\n";	4040	LOG llevInfo, "[ABT] $msg\n";
3005	LOG llevInfo, "[ABT] [suppressed]\n";	4041	LOG llevInfo, "[ABT] [suppressed]\n";
3006	}	4042	}
3007	}	4043	}
3008		4044
3009	# load additional modules	4045	# load additional modules
3010	use cf::pod;	4046	require "cf/$_.pm" for @EXTRA_MODULES;
		4047	cf::_connect_to_perl_2;
3011		4048
3012	END { cf::emergency_save }	4049	END { cf::emergency_save }
3013		4050
3014	1	4051	1
3015		4052

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