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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC vs.
Revision 1.506 by root, Wed Feb 3 20:48:22 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
98		147
99	binmode STDOUT;	148	binmode STDOUT;
100	binmode STDERR;	149	binmode STDERR;
101		150
102	# read virtual server time, if available	151	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
107	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
108		159
109	mkdir $_	160	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		162
112	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
113		164
114	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		177
116	#############################################################################	178	#############################################################################
117		179
118	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
119		181
…		…
155		217
156	The raw value load value from the last tick.	218	The raw value load value from the last tick.
157		219
158	=item %cf::CFG	220	=item %cf::CFG
159		221
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	223	from wherever your confdir points to.
162		224
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		226
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
169	=back	243	=back
170		244
171	=cut	245	=cut
172		246
173	BEGIN {	247	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	248	my $msg = join "", @_;
176		249
177	$msg .= "\n"	250	$msg .= "\n"
178	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
179		252
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		254
182	utf8::encode $msg;
183	LOG llevError, $msg;	255	LOG llevError, $msg;
184	};	256	};
185	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
186		271
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		279
194	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	281	# within the Safe compartment.
196	for my $pkg (qw(	282	for my $pkg (qw(
197	cf::global cf::attachable	283	cf::global cf::attachable
198	cf::object cf::object::player	284	cf::object cf::object::player
199	cf::client cf::player	285	cf::client cf::player
200	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
201	cf::map cf::party cf::region	288	cf::party cf::region
202	)) {	289	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	291	}
206		292
207	$Event::DIED = sub {	293	$EV::DIED = sub {
208	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
209	};	295	};
		296
		297	#############################################################################
210		298
211	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
212		300
213	=over 4	301	=over 4
214		302
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	322	$d
235	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
236	}	324	}
237		325
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
241		327
242	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
243		329
244	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
245		331
246	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
247		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
248	=item cf::lock_wait $string	355	=item cf::lock_wait $string
249		356
250	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
251		358
252	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
253		360
254	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
256	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
257	returned.	364	returned.
258		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
259	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
261		371
262	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
263		373
264	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
265		375
266	=cut	376	=cut
267		377
268	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
269		379
270	sub lock_wait($) {	380	sub lock_wait($) {
271	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	382	}
279		383
280	sub lock_acquire($) {	384	sub lock_acquire($) {
281	my ($key) = @_;	385	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	386	}
293		387
294	sub lock_active($) {	388	sub lock_active($) {
295	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	390	}
299		391
300	sub freeze_mainloop {	392	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
302		394
303	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
305	};	462	}
306	$TICK_WATCHER->stop;	463	};
307	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
308	}	478	}
309		479
310	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
311		481
312	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		487
318	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
319		489
320	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
321		491
322	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
325		496
326	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
329	fast or be very important.	500	fast or be very important.
…		…
332		503
333	sub sync_job(&) {	504	sub sync_job(&) {
334	my ($job) = @_;	505	my ($job) = @_;
335		506
336	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	508	my $time = EV::time;
338		509
339	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
341		512
342	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	514
344	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
345		516
346	my $busy = 1;	517	my $busy = 1;
347	my @res;	518	my @res;
348		519
349	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	522	@res = eval { $job->() };
351	warn $@ if $@;	523	warn $@ if $@;
352	undef $busy;	524	undef $busy;
353	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
354		526
355	while ($busy) {	527	while ($busy) {
356	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
357	}	532	}
		533	}
358		534
359	$time = Event::time - $time;	535	my $time = EV::time - $time;
360		536
361	LOG llevError | logBacktrace, "long sync job\n"
362	if $time > $TICK * 0.5;
363
364	$tick_start += $time; # do not account sync jobs to server load	537	$TICK_START += $time; # do not account sync jobs to server load
365		538
366	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
367	} else {	540	} else {
368	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
369		542
…		…
389	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
390		563
391	$coro	564	$coro
392	}	565	}
393		566
394	sub write_runtime {	567	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		568
397	# first touch the runtime file to show we are still running:	569	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
399		573
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	574	=cut
401	utime undef, undef, $fh;	575
		576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
		578
		579	# we seemingly have to make a local copy of the whole thing,
		580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
		582
		583	my @res = Coro::Util::fork_eval {
		584	reset_signals;
		585	&$cb
		586	}, @args;
		587
		588	wantarray ? @res : $res[-1]
		589	}
		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
402	}	645	};
		646	cf::cleanup "db_open(db): $@" if $@;
403		647
404	my $guard = cf::lock_acquire "write_runtime";	648	$db
		649	}
405		650
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	651	our $DB;
407	or return;
408		652
409	my $value = $cf::RUNTIME + 90 + 10;	653	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	654	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	655	$DB ||= db_table "db";
		656	};
		657	}
412		658
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	659	sub db_get($$) {
414	and return;	660	my $key = "$_[0]/$_[1]";
415		661
416	# always fsync - this file is important	662	cf::sync_job {
417	aio_fsync $fh	663	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		664
420	# touch it again to show we are up-to-date	665	$! ? ()
421	utime undef, undef, $fh;	666	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
432	}	743	}
433		744
434	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
435		746
436	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
448		759
449	#############################################################################	760	#############################################################################
450		761
451	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
452		763
453	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
456		767
457	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	770	Deliantra).
460		771
461	=over 4	772	=over 4
462		773
463	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
464		775
…		…
508	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
509		820
510	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
512		823
513	Some classes such as crossfire maps and objects can specify attachments	824	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.	825	that are attached at load/instantiate time, thus the need for a name.
515		826
516	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
517		828
518	=over 4	829	=over 4
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
628		939
629	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		944
634	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	946	my $pkg = shift @arg;
636		947
637	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
667	}	978	}
668		979
669	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
670	} else {	981	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	983	}
673		984
674	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
675	}	986	}
676		987
…		…
678	if (ref $_[0]) {	989	if (ref $_[0]) {
679	_object_attach @_;	990	_object_attach @_;
680	} else {	991	} else {
681	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
682	}	993	}
		994	_recalc_want;
683	};	995	};
684		996
685	# all those should be optimised	997	# all those should be optimised
686	sub cf::attachable::detach {	998	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
691	reattach ($obj);	1003	reattach ($obj);
692	} else {	1004	} else {
693	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
694	}	1006	}
		1007	_recalc_want;
695	};	1008	};
696		1009
697	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
699		1012
…		…
714	";	1027	";
715	die if $@;	1028	die if $@;
716	}	1029	}
717		1030
718	our $override;	1031	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1033
721	sub override {	1034	sub override {
722	$override = 1;	1035	$override = 1;
723	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
724	}	1037	}
725		1038
726	sub do_invoke {	1039	sub do_invoke {
727	my $event = shift;	1040	my $event = shift;
728	my $callbacks = shift;	1041	my $callbacks = shift;
729		1042
730	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
731		1044
732	local $override;	1045	local $override;
733		1046
734	for (@$callbacks) {	1047	for (@$callbacks) {
735	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
744	}	1057	}
745		1058
746	0	1059	0
747	}	1060	}
748		1061
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1063
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1065
753	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
754		1067
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1071
759	=back	1072	=back
760		1073
761	=cut	1074	=cut
762		1075
763	#############################################################################	1076	#############################################################################
764	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
765		1120
766	sub reattach {	1121	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1123	my ($obj) = @_;
769		1124
		1125	# no longer needed after getting rid of delete_package?
770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
771		1127
772	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
773		1129
774	@$registry = ();	1130	@$registry = ();
775		1131
…		…
790	cf::attachable->attach (	1146	cf::attachable->attach (
791	prio => -1000000,	1147	prio => -1000000,
792	on_instantiate => sub {	1148	on_instantiate => sub {
793	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
794		1150
795	$data = from_json $data;	1151	$data = decode_json $data;
796		1152
797	for (@$data) {	1153	for (@$data) {
798	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
799		1155
800	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1172	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
818		1174
819	sync_job {	1175	sync_job {
820	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
823		1180
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1186	aio_fsync $fh;
		1187	}
828	close $fh;	1188	aio_close $fh;
829		1189
830	if (@$objs) {	1190	if (@$objs) {
831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
832	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
835	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1197	aio_fsync $fh;
		1198	}
836	close $fh;	1199	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
838	}	1201	}
839	} else {	1202	} else {
840	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
841	}	1204	}
842		1205
843	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1210	} else {
845	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
846	}	1212	}
847	} else {	1213	} else {
848	aio_unlink $filename;	1214	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
850	}	1216	}
851	}	1217	};
852	}	1218	}
853		1219
854	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
856		1222
…		…
868	or return;	1234	or return;
869		1235
870	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
872	or return;	1238	or return;
		1239
873	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
874	}	1242	}
875		1243
		1244	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
878	return ($data, $av);	1248	($data, $av)
879	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
880		1256
881	#############################################################################	1257	#############################################################################
882	# command handling &c	1258	# command handling &c
883		1259
884	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1274	}
899		1275
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1277
902	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
903		1283
904	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
905	called.	1285	called.
906		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
907	=cut	1298	=cut
908		1299
909	sub register_extcmd {	1300	sub register_extcmd {
910	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
911		1302
912	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
913	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
914		1313
915	cf::player->attach (	1314	cf::player->attach (
916	on_command => sub {	1315	on_command => sub {
917	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
918		1317
…		…
926	cf::override;	1325	cf::override;
927	},	1326	},
928	on_extcmd => sub {	1327	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
930		1329
931	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1331
933	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
939	} else {	1347	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1349	}
942		1350
943	cf::override;	1351	cf::override;
944	},	1352	},
945	);	1353	);
946		1354
		1355	# "readahead" all extensions
947	sub load_extension {	1356	sub cache_extensions {
948	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
949		1358
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1362	}
975	die $@;
976	}	1363	};
977		1364
978	push @EXTS, $pkg;	1365	$grp
979	}	1366	}
980		1367
981	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
982	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1373	next unless -r $path;
984	eval {	1374
985	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
986	1	1435	}
987	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
988	}	1446	};
989	}	1447	}
990		1448
991	#############################################################################	1449	#############################################################################
992		1450
		1451	=back
		1452
993	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
994		1454
995	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
996		1456
997	=cut	1457	=cut
998		1458
999	package cf::player;	1459	package cf::player;
1000		1460
1001	use Coro::AIO;	1461	use Coro::AIO;
1002		1462
1003	=head3 cf::player	1463	=head3 cf::player
1004		1464
1005	=over 4	1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
1006		1480
1007	=item cf::player::find $login	1481	=item cf::player::find $login
1008		1482
1009	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
1010		1484
…		…
1029		1503
1030	sub exists($) {	1504	sub exists($) {
1031	my ($login) = @_;	1505	my ($login) = @_;
1032		1506
1033	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
1035	}	1509	}
1036		1510
1037	sub find($) {	1511	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1513	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1524
1051	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1052	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
1053	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1054	}	1534	}
1055	}	1535	}
1056	}	1536	}
1057		1537
…		…
1066	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1067		1547
1068	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1070		1550
		1551	cf::get_slot 0.01;
		1552
1071	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1072	Coro::cede;	1554	cf::cede_to_tick;
1073	}	1555	}
1074		1556
1075	sub new($) {	1557	sub new($) {
1076	my ($login) = @_;	1558	my ($login) = @_;
1077		1559
…		…
1083	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1084		1566
1085	$self	1567	$self
1086	}	1568	}
1087		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
1088	=item $pl->quit_character	1580	=item $pl->quit_character
1089		1581
1090	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1092		1584
…		…
1096	my ($pl) = @_;	1588	my ($pl) = @_;
1097		1589
1098	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1099		1591
1100	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1101	$pl->password ("*"); # this should lock out the player until we nuked the dir	1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1102		1594
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1107		1601
1108	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1639	or return [];
1146		1640
1147	my @logins;	1641	my @logins;
1148		1642
1149	for my $login (@$dirs) {	1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1153		1653
1154	utf8::decode $login;	1654	utf8::decode $login;
1155	push @logins, $login;	1655	push @logins, $login;
1156	}	1656	}
1157		1657
…		…
1184	}	1684	}
1185		1685
1186	\@paths	1686	\@paths
1187	}	1687	}
1188		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1189	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1190		1694
1191	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1192		1696
1193	=cut	1697	=cut
1194		1698
1195	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1197		1701
1198	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1703	}
1202		1704
1203	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1204		1706
1205	Sends an ext event to the client.	1707	Sends an ext event to the client.
1206		1708
1207	=cut	1709	=cut
1208		1710
1209	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1211		1713
1212	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1213	}	1715	}
1214		1716
1215	=head3 cf::region	1717	=head3 cf::region
1216		1718
1217	=over 4	1719	=over 4
…		…
1220		1722
1221	package cf::region;	1723	package cf::region;
1222		1724
1223	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1224		1726
1225	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1226		1728
1227	=cut	1729	=cut
1228		1730
1229	sub find_by_path($) {	1731	sub find_by_path($) {
1230	my ($path) = @_;	1732	my ($path) = @_;
1231		1733
1232	my ($match, $specificity);	1734	my ($match, $specificity);
1233		1735
1234	for my $region (list) {	1736	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1238	}	1740	}
1239	}	1741	}
1240		1742
…		…
1261	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1263		1765
1264	sub generate_random_map {	1766	sub generate_random_map {
1265	my ($self, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
1266	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1772	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1304	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1305		1810
1306	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1307	local $self->{path};	1812	local $self->{path};
1308	local $self->{load_path};	1813	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1814
1312	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1313	}	1816	}
1314		1817
1315	sub normalise {	1818	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1363	return $self;	1866	return $self;
1364	}	1867	}
1365	}	1868	}
1366		1869
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1871	()
1369	}	1872	}
1370		1873
1371	sub init {	1874	sub init {
1372	my ($self) = @_;	1875	my ($self) = @_;
…		…
1394		1897
1395	# the temporary/swap location	1898	# the temporary/swap location
1396	sub save_path {	1899	sub save_path {
1397	my ($self) = @_;	1900	my ($self) = @_;
1398		1901
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1903	"$TMPDIR/$path.map"
1401	}	1904	}
1402		1905
1403	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1404	sub uniq_path {	1907	sub uniq_path {
1405	my ($self) = @_;	1908	my ($self) = @_;
1406		1909
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1911	"$UNIQUEDIR/$path"
1409	}	1912	}
1410		1913
1411	# and all this just because we cannot iterate over	1914	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1915	my ($self) = @_;
1415		1916
1416	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1418	}	1920	}
1419		1921
1420	sub unlink_save {	1922	sub unlink_save {
1421	my ($self) = @_;	1923	my ($self) = @_;
1422		1924
…		…
1427		1929
1428	sub load_header_from($) {	1930	sub load_header_from($) {
1429	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1430		1932
1431	utf8::encode $path;	1933	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	or return;	1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
1437		1942
1438	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1439		1944
1440	1	1945	1
1441	}	1946	}
…		…
1480	$self->load_header_orig	1985	$self->load_header_orig
1481	or return;	1986	or return;
1482	$self->prepare_orig;	1987	$self->prepare_orig;
1483	}	1988	}
1484		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1485	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1994	unless $self->default_region;
1487		1995
1488	1	1996	1
1489	}	1997	}
…		…
1492	sub find {	2000	sub find {
1493	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1494		2002
1495	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1496		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1498		2007
1499	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1502	or return;	2010	or return;
1503		2011
1504	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1505		2013
1506	$map->load_header	2014	$map->load_header
1507	or return;	2015	or return;
1508		2016
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1512	$map->reset;	2022	$map->reset;
1513	undef $guard;
1514	return find $path;	2023	return find $path;
1515	}	2024	}
1516		2025
1517	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1518	}	2027	}
1519	}	2028	}
1520		2029
1521	sub pre_load { }	2030	sub pre_load { }
1522	sub post_load { }	2031	#sub post_load { } # XS
1523		2032
1524	sub load {	2033	sub load {
1525	my ($self) = @_;	2034	my ($self) = @_;
1526		2035
1527	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1528		2037
1529	my $path = $self->{path};	2038	my $path = $self->{path};
1530		2039
1531	{	2040	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1533		2042
		2043	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2045
1536	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1537		2047
1538	$self->alloc;	2048	$self->alloc;
1539		2049
1540	$self->pre_load;	2050	$self->pre_load;
1541	Coro::cede;	2051	cf::cede_to_tick;
1542		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2055	$self->_load_objects ($f)
1544	or return;	2056	or return;
1545		2057
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1547	if delete $self->{load_original};	2059	if delete $self->{load_original};
1548		2060
1549	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2062	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2065	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1554	}	2069	}
1555	}	2070	}
1556		2071
1557	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1558	# now do the right thing for maps	2075	# now do the right thing for maps
1559	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2078	unless $self->difficulty;
1562	Coro::cede;	2079	cf::cede_to_tick;
1563		2080
1564	unless ($self->{deny_activate}) {	2081	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2082	$self->decay_objects;
1566	$self->fix_auto_apply;	2083	$self->fix_auto_apply;
1567	$self->update_buttons;	2084	$self->update_buttons;
1568	Coro::cede;	2085	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2086	$self->activate;
1572	}	2087	}
1573		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2092	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2093	}
1576		2094
1577	$self->post_load;	2095	$self->post_load;
1578	}	2096	}
1579		2097
…		…
1581	my ($self, $ob) = @_;	2099	my ($self, $ob) = @_;
1582		2100
1583	return find "~" . $ob->name . "/" . $self->{path}	2101	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2102	if $self->per_player;
1585		2103
		2104	# return find "?party/" . $ob->name . "/" . $self->{path}
		2105	# if $self->per_party;
		2106
1586	$self	2107	$self
1587	}	2108	}
1588		2109
1589	# find and load all maps in the 3x3 area around a map	2110	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2111	sub load_neighbours {
1591	my ($map) = @_;	2112	my ($map) = @_;
1592		2113
1593	my @diag; # diagonal neighbours	2114	my @neigh; # diagonal neighbours
1594		2115
1595	for (0 .. 3) {	2116	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2117	my $neigh = $map->tile_path ($_)
1597	or next;	2118	or next;
1598	$neigh = find $neigh, $map	2119	$neigh = find $neigh, $map
1599	or next;	2120	or next;
1600	$neigh->load;	2121	$neigh->load;
1601		2122
		2123	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2124	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2125	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2126	}
1605		2127
1606	for (@diag) {	2128	for (grep defined $_->[0], @neigh) {
		2129	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2130	my $neigh = find $path, $origin
1608	or next;	2131	or next;
1609	$neigh->load;	2132	$neigh->load;
1610	}	2133	}
1611	}	2134	}
1612		2135
…		…
1617	}	2140	}
1618		2141
1619	sub do_load_sync {	2142	sub do_load_sync {
1620	my ($map) = @_;	2143	my ($map) = @_;
1621		2144
		2145	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2146	if $Coro::current == $Coro::main;
		2147
1622	cf::sync_job { $map->load };	2148	cf::sync_job { $map->load };
1623	}	2149	}
1624		2150
1625	our %MAP_PREFETCH;	2151	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2152	our $MAP_PREFETCHER = undef;
1627		2153
1628	sub find_async {	2154	sub find_async {
1629	my ($path, $origin) = @_;	2155	my ($path, $origin, $load) = @_;
1630		2156
1631	$path = normalise $path, $origin && $origin->{path};	2157	$path = normalise $path, $origin && $origin->{path};
1632		2158
1633	if (my $map = $cf::MAP{$path}) {	2159	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2160	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2161	}
1636		2162
1637	undef $MAP_PREFETCH{$path};	2163	$MAP_PREFETCH{$path} |= $load;
		2164
1638	$MAP_PREFETCHER ||= cf::async {	2165	$MAP_PREFETCHER ||= cf::async {
		2166	$Coro::current->{desc} = "map prefetcher";
		2167
1639	while (%MAP_PREFETCH) {	2168	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2169	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2170	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2171	$map->load if $v;
		2172	}
1644		2173
1645	delete $MAP_PREFETCH{$path};	2174	delete $MAP_PREFETCH{$k};
1646	}	2175	}
1647	}	2176	}
1648	undef $MAP_PREFETCHER;	2177	undef $MAP_PREFETCHER;
1649	};	2178	};
1650	$MAP_PREFETCHER->prio (6);	2179	$MAP_PREFETCHER->prio (6);
…		…
1653	}	2182	}
1654		2183
1655	sub save {	2184	sub save {
1656	my ($self) = @_;	2185	my ($self) = @_;
1657		2186
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2188
1660	$self->{last_save} = $cf::RUNTIME;	2189	$self->{last_save} = $cf::RUNTIME;
1661		2190
1662	return unless $self->dirty;	2191	return unless $self->dirty;
1663		2192
…		…
1669	return if $self->{deny_save};	2198	return if $self->{deny_save};
1670		2199
1671	local $self->{last_access} = $self->last_access;#d#	2200	local $self->{last_access} = $self->last_access;#d#
1672		2201
1673	cf::async {	2202	cf::async {
		2203	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2204	$_->contr->save for $self->players;
1675	};	2205	};
		2206
		2207	cf::get_slot 0.02;
1676		2208
1677	if ($uniq) {	2209	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2210	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2211	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2212	} else {
…		…
1686	my ($self) = @_;	2218	my ($self) = @_;
1687		2219
1688	# save first because save cedes	2220	# save first because save cedes
1689	$self->save;	2221	$self->save;
1690		2222
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2223	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2224
1693	return if $self->players;	2225	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;	2226	return if $self->in_memory != cf::MAP_ACTIVE;
1695	return if $self->{deny_save};	2227	return if $self->{deny_save};
1696		2228
		2229	$self->in_memory (cf::MAP_SWAPPED);
		2230
		2231	$self->deactivate;
		2232	$_->clear_links_to ($self) for values %cf::MAP;
1697	$self->clear;	2233	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2234	}
1700		2235
1701	sub reset_at {	2236	sub reset_at {
1702	my ($self) = @_;	2237	my ($self) = @_;
1703		2238
1704	# TODO: safety, remove and allow resettable per-player maps	2239	# 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};	2240	return 1e99 if $self->{deny_reset};
1707		2241
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2242	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2243	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2244
…		…
1721	my ($self) = @_;	2255	my ($self) = @_;
1722		2256
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2257	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2258
1725	return if $self->players;	2259	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2260
1728	warn "resetting map ", $self->path;#d#	2261	warn "resetting map ", $self->path, "\n";
1729		2262
1730	$self->in_memory (cf::MAP_SWAPPED);	2263	$self->in_memory (cf::MAP_SWAPPED);
1731		2264
1732	# need to save uniques path	2265	# need to save uniques path
1733	unless ($self->{deny_save}) {	2266	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2270	if $uniq;
1738	}	2271	}
1739		2272
1740	delete $cf::MAP{$self->path};	2273	delete $cf::MAP{$self->path};
1741		2274
		2275	$self->deactivate;
		2276	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2277	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2278
1746	$self->unlink_save;	2279	$self->unlink_save;
1747	$self->destroy;	2280	$self->destroy;
1748	}	2281	}
1749		2282
1750	my $nuke_counter = "aaaa";	2283	my $nuke_counter = "aaaa";
1751		2284
1752	sub nuke {	2285	sub nuke {
1753	my ($self) = @_;	2286	my ($self) = @_;
1754		2287
		2288	{
		2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2290
1755	delete $cf::MAP{$self->path};	2291	delete $cf::MAP{$self->path};
1756		2292
1757	$self->unlink_save;	2293	$self->unlink_save;
1758		2294
1759	bless $self, "cf::map";	2295	bless $self, "cf::map";
1760	delete $self->{deny_reset};	2296	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2297	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2298	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2299	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2300
1765	$cf::MAP{$self->path} = $self;	2301	$cf::MAP{$self->path} = $self;
		2302	}
1766		2303
1767	$self->reset; # polite request, might not happen	2304	$self->reset; # polite request, might not happen
		2305	}
		2306
		2307	=item $maps = cf::map::tmp_maps
		2308
		2309	Returns an arrayref with all map paths of currently instantiated and saved
		2310	maps. May block.
		2311
		2312	=cut
		2313
		2314	sub tmp_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	/\.map$/
		2319	? normalise $_
		2320	: ()
		2321	} @{ aio_readdir $TMPDIR or [] }
		2322	]
		2323	}
		2324
		2325	=item $maps = cf::map::random_maps
		2326
		2327	Returns an arrayref with all map paths of currently instantiated and saved
		2328	random maps. May block.
		2329
		2330	=cut
		2331
		2332	sub random_maps() {
		2333	[
		2334	map {
		2335	utf8::decode $_;
		2336	/\.map$/
		2337	? normalise "?random/$_"
		2338	: ()
		2339	} @{ aio_readdir $RANDOMDIR or [] }
		2340	]
1768	}	2341	}
1769		2342
1770	=item cf::map::unique_maps	2343	=item cf::map::unique_maps
1771		2344
1772	Returns an arrayref of paths of all shared maps that have	2345	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2346	instantiated unique items. May block.
1774		2347
1775	=cut	2348	=cut
1776		2349
1777	sub unique_maps() {	2350	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2351	[
1779	or return;	2352	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2353	utf8::decode $_;
1785	next if /\.pst$/;	2354	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2355	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2356	? ()
1788	push @paths, cf::map::normalise $_;	2357	: normalise $_
		2358	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2359	]
1790
1791	\@paths
1792	}	2360	}
1793		2361
1794	package cf;	2362	=item cf::map::static_maps
		2363
		2364	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2365	file in the shared directory excluding F</styles> and F</editor>). May
		2366	block.
		2367
		2368	=cut
		2369
		2370	sub static_maps() {
		2371	my @dirs = "";
		2372	my @maps;
		2373
		2374	while (@dirs) {
		2375	my $dir = shift @dirs;
		2376
		2377	next if $dir eq "/styles" || $dir eq "/editor";
		2378
		2379	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2380	or return;
		2381
		2382	for (@$files) {
		2383	s/\.map$// or next;
		2384	utf8::decode $_;
		2385	push @maps, "$dir/$_";
		2386	}
		2387
		2388	push @dirs, map "$dir/$_", @$dirs;
		2389	}
		2390
		2391	\@maps
		2392	}
1795		2393
1796	=back	2394	=back
1797		2395
1798	=head3 cf::object	2396	=head3 cf::object
1799		2397
…		…
1803		2401
1804	=over 4	2402	=over 4
1805		2403
1806	=item $ob->inv_recursive	2404	=item $ob->inv_recursive
1807		2405
1808	Returns the inventory of the object _and_ their inventories, recursively.	2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
1809		2408
1810	=cut	2409	=cut
1811		2410
1812	sub inv_recursive_;	2411	sub inv_recursive_;
1813	sub inv_recursive_ {	2412	sub inv_recursive_ {
…		…
1816		2415
1817	sub inv_recursive {	2416	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2417	inv_recursive_ inv $_[0]
1819	}	2418	}
1820		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
		2445	}
		2446	}
		2447
1821	package cf;	2448	package cf;
1822		2449
1823	=back	2450	=back
1824		2451
1825	=head3 cf::object::player	2452	=head3 cf::object::player
…		…
1831	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2458	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	2459	can be C<undef>. Does the right thing when the player is currently in a
1833	dialogue with the given NPC character.	2460	dialogue with the given NPC character.
1834		2461
1835	=cut	2462	=cut
		2463
		2464	our $SAY_CHANNEL = {
		2465	id => "say",
		2466	title => "Map",
		2467	reply => "say ",
		2468	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2469	};
		2470
		2471	our $CHAT_CHANNEL = {
		2472	id => "chat",
		2473	title => "Chat",
		2474	reply => "chat ",
		2475	tooltip => "Player chat and shouts, global to the server.",
		2476	};
1836		2477
1837	# rough implementation of a future "reply" method that works	2478	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2479	# with dialog boxes.
1839	#TODO: the first argument must go, split into a $npc->reply_to ( method	2480	#TODO: the first argument must go, split into a $npc->reply_to ( method
1840	sub cf::object::player::reply($$$;$) {	2481	sub cf::object::player::reply($$$;$) {
…		…
1842		2483
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2484	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2485
1845	if ($self->{record_replies}) {	2486	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2487	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2488
1847	} else {	2489	} else {
		2490	my $pl = $self->contr;
		2491
		2492	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2493	my $dialog = $pl->{npc_dialog};
		2494	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2495
		2496	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2497	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2498	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2499	}
1850	}	2500	}
		2501	}
		2502
		2503	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	=cut
		2506
		2507	sub cf::object::send_msg {
		2508	my $pl = shift->contr
		2509	or return;
		2510	$pl->send_msg (@_);
1851	}	2511	}
1852		2512
1853	=item $player_object->may ("access")	2513	=item $player_object->may ("access")
1854		2514
1855	Returns wether the given player is authorized to access resource "access"	2515	Returns wether the given player is authorized to access resource "access"
…		…
1868		2528
1869	=item $player_object->enter_link	2529	=item $player_object->enter_link
1870		2530
1871	Freezes the player and moves him/her to a special map (C<{link}>).	2531	Freezes the player and moves him/her to a special map (C<{link}>).
1872		2532
1873	The player should be reasonably safe there for short amounts of time. You	2533	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.	2534	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2535	though, as the palyer cannot control the character while it is on the link
		2536	map.
1875		2537
1876	Will never block.	2538	Will never block.
1877		2539
1878	=item $player_object->leave_link ($map, $x, $y)	2540	=item $player_object->leave_link ($map, $x, $y)
1879		2541
…		…
1902	$self->deactivate_recursive;	2564	$self->deactivate_recursive;
1903		2565
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2566	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2567
1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2568	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2569	if $self->map && $self->map->{path} ne "{link}";
1908		2570
1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2571	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1910	}	2572	}
1911		2573
1912	sub cf::object::player::leave_link {	2574	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2575	my ($self, $map, $x, $y) = @_;
		2576
		2577	return unless $self->contr->active;
1914		2578
1915	my $link_pos = delete $self->{_link_pos};	2579	my $link_pos = delete $self->{_link_pos};
1916		2580
1917	unless ($map) {	2581	unless ($map) {
1918	# restore original map position	2582	# restore original map position
…		…
1929	($x, $y) = (-1, -1)	2593	($x, $y) = (-1, -1)
1930	unless (defined $x) && (defined $y);	2594	unless (defined $x) && (defined $y);
1931		2595
1932	# use -1 or undef as default coordinates, not 0, 0	2596	# use -1 or undef as default coordinates, not 0, 0
1933	($x, $y) = ($map->enter_x, $map->enter_y)	2597	($x, $y) = ($map->enter_x, $map->enter_y)
1934	if $x <=0 && $y <= 0;	2598	if $x <= 0 && $y <= 0;
1935		2599
1936	$map->load;	2600	$map->load;
1937	$map->load_diag;	2601	$map->load_neighbours;
1938		2602
1939	return unless $self->contr->active;	2603	return unless $self->contr->active;
1940	$self->activate_recursive;
1941		2604
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2605	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2606	$self->enter_map ($map, $x, $y);
1944	}
1945		2607
1946	cf::player->attach (	2608	# only activate afterwards, to support waiting in hooks
1947	on_logout => sub {	2609	$self->activate_recursive;
1948	my ($pl) = @_;	2610	}
1949		2611
1950	# abort map switching before logout	2612	=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		2613
1960	# try to abort aborted map switching on player login :)	2614	Moves the player to the given map-path and coordinates by first freezing
1961	# should happen only on crashes	2615	her, loading and preparing them map, calling the provided $check callback
1962	if ($pl->ob->{_link_pos}) {	2616	that has to return the map if sucecssful, and then unfreezes the player on
1963	$pl->ob->enter_link;	2617	the new (success) or old (failed) map position. In either case, $done will
1964	(async {	2618	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		2619
1978	=item $player_object->goto ($path, $x, $y)	2620	Note that $check will be called with a potentially non-loaded map, so if
		2621	it needs a loaded map it has to call C<< ->load >>.
1979		2622
1980	=cut	2623	=cut
		2624
		2625	our $GOTOGEN;
1981		2626
1982	sub cf::object::player::goto {	2627	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y) = @_;	2628	my ($self, $path, $x, $y, $check, $done) = @_;
		2629
		2630	# do generation counting so two concurrent goto's will be executed in-order
		2631	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1984		2632
1985	$self->enter_link;	2633	$self->enter_link;
1986		2634
1987	(async {	2635	(async {
		2636	$Coro::current->{desc} = "player::goto $path $x $y";
		2637
		2638	# *tag paths override both path and x|y
		2639	if ($path =~ /^\*(.*)$/) {
		2640	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2641	my $ob = $obs[rand @obs];
		2642
		2643	# see if we actually can go there
		2644	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2645	$ob = $obs[rand @obs];
		2646	} else {
		2647	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649	# else put us there anyways for now #d#
		2650
		2651	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2652	} else {
		2653	($path, $x, $y) = (undef, undef, undef);
		2654	}
		2655	}
		2656
1988	my $map = eval {	2657	my $map = eval {
1989	my $map = cf::map::find $path;	2658	my $map = defined $path ? cf::map::find $path : undef;
		2659
		2660	if ($map) {
1990	$map = $map->customise_for ($self) if $map;	2661	$map = $map->customise_for ($self);
		2662	$map = $check->($map) if $check && $map;
		2663	} else {
		2664	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2665	}
		2666
1991	$map	2667	$map
		2668	};
		2669
		2670	if ($@) {
		2671	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2672	LOG llevError | logBacktrace, Carp::longmess $@;
1992	} or	2673	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1994		2674
		2675	if ($gen == $self->{_goto_generation}) {
		2676	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2677	$self->leave_link ($map, $x, $y);
		2678	}
		2679
		2680	$done->() if $done;
1996	})->prio (1);	2681	})->prio (1);
1997	}	2682	}
1998		2683
1999	=item $player_object->enter_exit ($exit_object)	2684	=item $player_object->enter_exit ($exit_object)
2000		2685
…		…
2020	}	2705	}
2021		2706
2022	sub prepare_random_map {	2707	sub prepare_random_map {
2023	my ($exit) = @_;	2708	my ($exit) = @_;
2024		2709
2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
2026
2027	# all this does is basically replace the /! path by	2710	# all this does is basically replace the /! path by
2028	# a new random map path (?random/...) with a seed	2711	# a new random map path (?random/...) with a seed
2029	# that depends on the exit object	2712	# that depends on the exit object
2030		2713
2031	my $rmp = parse_random_map_params $exit->msg;	2714	my $rmp = parse_random_map_params $exit->msg;
…		…
2033	if ($exit->map) {	2716	if ($exit->map) {
2034	$rmp->{region} = $exit->region->name;	2717	$rmp->{region} = $exit->region->name;
2035	$rmp->{origin_map} = $exit->map->path;	2718	$rmp->{origin_map} = $exit->map->path;
2036	$rmp->{origin_x} = $exit->x;	2719	$rmp->{origin_x} = $exit->x;
2037	$rmp->{origin_y} = $exit->y;	2720	$rmp->{origin_y} = $exit->y;
		2721
		2722	$exit->map->touch;
2038	}	2723	}
2039		2724
2040	$rmp->{random_seed} ||= $exit->random_seed;	2725	$rmp->{random_seed} ||= $exit->random_seed;
2041		2726
2042	my $data = cf::to_json $rmp;	2727	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2043	my $md5 = Digest::MD5::md5_hex $data;	2728	my $md5 = Digest::MD5::md5_hex $data;
2044	my $meta = "$RANDOMDIR/$md5.meta";	2729	my $meta = "$RANDOMDIR/$md5.meta";
2045		2730
2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2731	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2047	aio_write $fh, 0, (length $data), $data, 0;	2732	aio_write $fh, 0, (length $data), $data, 0;
2048	undef $fh;	2733	undef $fh;
2049	aio_rename "$meta~", $meta;	2734	aio_rename "$meta~", $meta;
2050		2735
		2736	my $slaying = "?random/$md5";
		2737
		2738	if ($exit->valid) {
2051	$exit->slaying ("?random/$md5");	2739	$exit->slaying ("?random/$md5");
2052	$exit->msg (undef);	2740	$exit->msg (undef);
		2741	}
2053	}	2742	}
2054	}	2743	}
2055		2744
2056	sub cf::object::player::enter_exit {	2745	sub cf::object::player::enter_exit {
2057	my ($self, $exit) = @_;	2746	my ($self, $exit) = @_;
2058		2747
2059	return unless $self->type == cf::PLAYER;	2748	return unless $self->type == cf::PLAYER;
2060		2749
2061	if ($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;	2750	$self->enter_link;
2073		2751
2074	(async {	2752	(async {
2075	$self->deactivate_recursive; # just to be sure	2753	$Coro::current->{desc} = "enter_exit";
		2754
2076	unless (eval {	2755	unless (eval {
		2756	$self->deactivate_recursive; # just to be sure
		2757
		2758	# random map handling
		2759	{
		2760	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2761
		2762	prepare_random_map $exit
		2763	if $exit->slaying eq "/!";
		2764	}
		2765
		2766	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2767	my $x = $exit->stats->hp;
		2768	my $y = $exit->stats->sp;
		2769
2077	$self->goto ($slaying, $hp, $sp);	2770	$self->goto ($map, $x, $y);
2078		2771
		2772	# if exit is damned, update players death & WoR home-position
		2773	$self->contr->savebed ($map, $x, $y)
		2774	if $exit->flag (cf::FLAG_DAMNED);
		2775
2079	1;	2776	1
2080	}) {	2777	}) {
2081	$self->message ("Something went wrong deep within the crossfire server. "	2778	$self->message ("Something went wrong deep within the deliantra server. "
2082	. "I'll try to bring you back to the map you were before. "	2779	. "I'll try to bring you back to the map you were before. "
2083	. "Please report this to the dungeon master!",	2780	. "Please report this to the dungeon master!",
2084	cf::NDI_UNIQUE | cf::NDI_RED);	2781	cf::NDI_UNIQUE | cf::NDI_RED);
2085		2782
2086	warn "ERROR in enter_exit: $@";	2783	warn "ERROR in enter_exit: $@";
…		…
2105		2802
2106	utf8::encode $text;	2803	utf8::encode $text;
2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2804	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2108	}	2805	}
2109		2806
		2807	=item $client->send_big_packet ($pkt)
		2808
		2809	Like C<send_packet>, but tries to compress large packets, and fragments
		2810	them as required.
		2811
		2812	=cut
		2813
		2814	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2815
		2816	sub cf::client::send_big_packet {
		2817	my ($self, $pkt) = @_;
		2818
		2819	# try lzf for large packets
		2820	$pkt = "lzf " . Compress::LZF::compress $pkt
		2821	if 1024 <= length $pkt and $self->{can_lzf};
		2822
		2823	# split very large packets
		2824	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2825	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2826	$pkt = "frag";
		2827	}
		2828
		2829	$self->send_packet ($pkt);
		2830	}
		2831
		2832	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2833
		2834	Send a drawinfo or msg packet to the client, formatting the msg for the
		2835	client if neccessary. C<$type> should be a string identifying the type of
		2836	the message, with C<log> being the default. If C<$color> is negative, suppress
		2837	the message unless the client supports the msg packet.
		2838
		2839	=cut
		2840
		2841	# non-persistent channels (usually the info channel)
		2842	our %CHANNEL = (
		2843	"c/motd" => {
		2844	id => "infobox",
		2845	title => "MOTD",
		2846	reply => undef,
		2847	tooltip => "The message of the day",
		2848	},
		2849	"c/identify" => {
		2850	id => "infobox",
		2851	title => "Identify",
		2852	reply => undef,
		2853	tooltip => "Items recently identified",
		2854	},
		2855	"c/examine" => {
		2856	id => "infobox",
		2857	title => "Examine",
		2858	reply => undef,
		2859	tooltip => "Signs and other items you examined",
		2860	},
		2861	"c/shopinfo" => {
		2862	id => "infobox",
		2863	title => "Shop Info",
		2864	reply => undef,
		2865	tooltip => "What your bargaining skill tells you about the shop",
		2866	},
		2867	"c/book" => {
		2868	id => "infobox",
		2869	title => "Book",
		2870	reply => undef,
		2871	tooltip => "The contents of a note or book",
		2872	},
		2873	"c/lookat" => {
		2874	id => "infobox",
		2875	title => "Look",
		2876	reply => undef,
		2877	tooltip => "What you saw there",
		2878	},
		2879	"c/who" => {
		2880	id => "infobox",
		2881	title => "Players",
		2882	reply => undef,
		2883	tooltip => "Shows players who are currently online",
		2884	},
		2885	"c/body" => {
		2886	id => "infobox",
		2887	title => "Body Parts",
		2888	reply => undef,
		2889	tooltip => "Shows which body parts you posess and are available",
		2890	},
		2891	"c/statistics" => {
		2892	id => "infobox",
		2893	title => "Statistics",
		2894	reply => undef,
		2895	tooltip => "Shows your primary statistics",
		2896	},
		2897	"c/skills" => {
		2898	id => "infobox",
		2899	title => "Skills",
		2900	reply => undef,
		2901	tooltip => "Shows your experience per skill and item power",
		2902	},
		2903	"c/shopitems" => {
		2904	id => "infobox",
		2905	title => "Shop Items",
		2906	reply => undef,
		2907	tooltip => "Shows the items currently for sale in this shop",
		2908	},
		2909	"c/resistances" => {
		2910	id => "infobox",
		2911	title => "Resistances",
		2912	reply => undef,
		2913	tooltip => "Shows your resistances",
		2914	},
		2915	"c/pets" => {
		2916	id => "infobox",
		2917	title => "Pets",
		2918	reply => undef,
		2919	tooltip => "Shows information abotu your pets/a specific pet",
		2920	},
		2921	"c/perceiveself" => {
		2922	id => "infobox",
		2923	title => "Perceive Self",
		2924	reply => undef,
		2925	tooltip => "You gained detailed knowledge about yourself",
		2926	},
		2927	"c/uptime" => {
		2928	id => "infobox",
		2929	title => "Uptime",
		2930	reply => undef,
		2931	tooltip => "How long the server has been running since last restart",
		2932	},
		2933	"c/mapinfo" => {
		2934	id => "infobox",
		2935	title => "Map Info",
		2936	reply => undef,
		2937	tooltip => "Information related to the maps",
		2938	},
		2939	"c/party" => {
		2940	id => "party",
		2941	title => "Party",
		2942	reply => "gsay ",
		2943	tooltip => "Messages and chat related to your party",
		2944	},
		2945	"c/death" => {
		2946	id => "death",
		2947	title => "Death",
		2948	reply => undef,
		2949	tooltip => "Reason for and more info about your most recent death",
		2950	},
		2951	"c/say" => $SAY_CHANNEL,
		2952	"c/chat" => $CHAT_CHANNEL,
		2953	);
		2954
		2955	sub cf::client::send_msg {
		2956	my ($self, $channel, $msg, $color, @extra) = @_;
		2957
		2958	$msg = $self->pl->expand_cfpod ($msg)
		2959	unless $color & cf::NDI_VERBATIM;
		2960
		2961	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2962
		2963	# check predefined channels, for the benefit of C
		2964	if ($CHANNEL{$channel}) {
		2965	$channel = $CHANNEL{$channel};
		2966
		2967	$self->ext_msg (channel_info => $channel);
		2968	$channel = $channel->{id};
		2969
		2970	} elsif (ref $channel) {
		2971	# send meta info to client, if not yet sent
		2972	unless (exists $self->{channel}{$channel->{id}}) {
		2973	$self->{channel}{$channel->{id}} = $channel;
		2974	$self->ext_msg (channel_info => $channel);
		2975	}
		2976
		2977	$channel = $channel->{id};
		2978	}
		2979
		2980	return unless @extra || length $msg;
		2981
		2982	# default colour, mask it out
		2983	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2984	if $color & cf::NDI_DEF;
		2985
		2986	my $pkt = "msg "
		2987	. $self->{json_coder}->encode (
		2988	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2989	);
		2990
		2991	$self->send_big_packet ($pkt);
		2992	}
		2993
2110	=item $client->ext_event ($type, %msg)	2994	=item $client->ext_msg ($type, @msg)
2111		2995
2112	Sends an exti event to the client.	2996	Sends an ext event to the client.
2113		2997
2114	=cut	2998	=cut
2115		2999
2116	sub cf::client::ext_event($$%) {	3000	sub cf::client::ext_msg($$@) {
2117	my ($self, $type, %msg) = @_;	3001	my ($self, $type, @msg) = @_;
2118		3002
		3003	if ($self->extcmd == 2) {
		3004	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3005	} elsif ($self->extcmd == 1) { # TODO: remove
2119	$msg{msgtype} = "event_$type";	3006	push @msg, msgtype => "event_$type";
2120	$self->send_packet ("ext " . cf::to_json \%msg);	3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3008	}
		3009	}
		3010
		3011	=item $client->ext_reply ($msgid, @msg)
		3012
		3013	Sends an ext reply to the client.
		3014
		3015	=cut
		3016
		3017	sub cf::client::ext_reply($$@) {
		3018	my ($self, $id, @msg) = @_;
		3019
		3020	if ($self->extcmd == 2) {
		3021	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3022	} elsif ($self->extcmd == 1) {
		3023	#TODO: version 1, remove
		3024	unshift @msg, msgtype => "reply", msgid => $id;
		3025	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3026	}
2121	}	3027	}
2122		3028
2123	=item $success = $client->query ($flags, "text", \&cb)	3029	=item $success = $client->query ($flags, "text", \&cb)
2124		3030
2125	Queues a query to the client, calling the given callback with	3031	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>,	3032	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>.	3033	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2128		3034
2129	Queries can fail, so check the return code. Or don't, as queries will become	3035	Queries can fail, so check the return code. Or don't, as queries will
2130	reliable at some point in the future.	3036	become reliable at some point in the future.
2131		3037
2132	=cut	3038	=cut
2133		3039
2134	sub cf::client::query {	3040	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	3041	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	3049	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3050	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		3051
2146	$self->send_packet ($self->{query_queue}[0][0])	3052	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	3053	if @{ $self->{query_queue} } == 1;
		3054
		3055	1
2148	}	3056	}
2149		3057
2150	cf::client->attach (	3058	cf::client->attach (
		3059	on_connect => sub {
		3060	my ($ns) = @_;
		3061
		3062	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3063	},
2151	on_reply => sub {	3064	on_reply => sub {
2152	my ($ns, $msg) = @_;	3065	my ($ns, $msg) = @_;
2153		3066
2154	# this weird shuffling is so that direct followup queries	3067	# this weird shuffling is so that direct followup queries
2155	# get handled first	3068	# get handled first
…		…
2167	} else {	3080	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3081	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	3082	}
2170	}	3083	}
2171	},	3084	},
		3085	on_exticmd => sub {
		3086	my ($ns, $buf) = @_;
		3087
		3088	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3089
		3090	if (ref $msg) {
		3091	my ($type, $reply, @payload) =
		3092	"ARRAY" eq ref $msg
		3093	? @$msg
		3094	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3095
		3096	my @reply;
		3097
		3098	if (my $cb = $EXTICMD{$type}) {
		3099	@reply = $cb->($ns, @payload);
		3100	}
		3101
		3102	$ns->ext_reply ($reply, @reply)
		3103	if $reply;
		3104
		3105	} else {
		3106	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3107	}
		3108
		3109	cf::override;
		3110	},
2172	);	3111	);
2173		3112
2174	=item $client->async (\&cb)	3113	=item $client->async (\&cb)
2175		3114
2176	Create a new coroutine, running the specified callback. The coroutine will	3115	Create a new coroutine, running the specified callback. The coroutine will
…		…
2217	our $safe = new Safe "safe";	3156	our $safe = new Safe "safe";
2218	our $safe_hole = new Safe::Hole;	3157	our $safe_hole = new Safe::Hole;
2219		3158
2220	$SIG{FPE} = 'IGNORE';	3159	$SIG{FPE} = 'IGNORE';
2221		3160
2222	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3161	$safe->permit_only (Opcode::opset qw(
		3162	:base_core :base_mem :base_orig :base_math :base_loop
		3163	grepstart grepwhile mapstart mapwhile
		3164	sort time
		3165	));
2223		3166
2224	# here we export the classes and methods available to script code	3167	# here we export the classes and methods available to script code
2225		3168
2226	=pod	3169	=pod
2227		3170
2228	The following functions and methods are available within a safe environment:	3171	The following functions and methods are available within a safe environment:
2229		3172
2230	cf::object contr pay_amount pay_player map	3173	cf::object
		3174	contr pay_amount pay_player map x y force_find force_add destroy
		3175	insert remove name archname title slaying race decrease split
		3176	value
		3177
2231	cf::object::player player	3178	cf::object::player
2232	cf::player peaceful	3179	player
2233	cf::map trigger	3180
		3181	cf::player
		3182	peaceful
		3183
		3184	cf::map
		3185	trigger
2234		3186
2235	=cut	3187	=cut
2236		3188
2237	for (	3189	for (
2238	["cf::object" => qw(contr pay_amount pay_player map)],	3190	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3191	insert remove inv nrof name archname title slaying race
		3192	decrease split destroy change_exp value msg lore send_msg)],
2239	["cf::object::player" => qw(player)],	3193	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	3194	["cf::player" => qw(peaceful send_msg)],
2241	["cf::map" => qw(trigger)],	3195	["cf::map" => qw(trigger)],
2242	) {	3196	) {
2243	no strict 'refs';	3197	no strict 'refs';
2244	my ($pkg, @funs) = @$_;	3198	my ($pkg, @funs) = @$_;
2245	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3199	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2263		3217
2264	my $qcode = $code;	3218	my $qcode = $code;
2265	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3219	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2266	$qcode =~ s/\n/\\n/g;	3220	$qcode =~ s/\n/\\n/g;
2267		3221
		3222	%vars = (_dummy => 0) unless %vars;
		3223
		3224	my @res;
2268	local $_;	3225	local $_;
2269	local @safe::cf::_safe_eval_args = values %vars;
2270		3226
2271	my $eval =	3227	my $eval =
2272	"do {\n"	3228	"do {\n"
2273	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3229	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2274	. "#line 0 \"{$qcode}\"\n"	3230	. "#line 0 \"{$qcode}\"\n"
2275	. $code	3231	. $code
2276	. "\n}"	3232	. "\n}"
2277	;	3233	;
2278		3234
		3235	if ($CFG{safe_eval}) {
2279	sub_generation_inc;	3236	sub_generation_inc;
		3237	local @safe::cf::_safe_eval_args = values %vars;
2280	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3238	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2281	sub_generation_inc;	3239	sub_generation_inc;
		3240	} else {
		3241	local @cf::_safe_eval_args = values %vars;
		3242	@res = wantarray ? eval eval : scalar eval $eval;
		3243	}
2282		3244
2283	if ($@) {	3245	if ($@) {
2284	warn "$@";	3246	warn "$@";
2285	warn "while executing safe code '$code'\n";	3247	warn "while executing safe code '$code'\n";
2286	warn "with arguments " . (join " ", %vars) . "\n";	3248	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2305	=cut	3267	=cut
2306		3268
2307	sub register_script_function {	3269	sub register_script_function {
2308	my ($fun, $cb) = @_;	3270	my ($fun, $cb) = @_;
2309		3271
2310	no strict 'refs';	3272	$fun = "safe::$fun" if $CFG{safe_eval};
2311	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3273	*$fun = $safe_hole->wrap ($cb);
2312	}	3274	}
2313		3275
2314	=back	3276	=back
2315		3277
2316	=cut	3278	=cut
2317
2318	#############################################################################
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 $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491		3279
2492	#############################################################################	3280	#############################################################################
2493	# the server's init and main functions	3281	# the server's init and main functions
2494		3282
2495	sub load_facedata($) {	3283	sub load_facedata($) {
2496	my ($path) = @_;	3284	my ($path) = @_;
		3285
		3286	# HACK to clear player env face cache, we need some signal framework
		3287	# for this (global event?)
		3288	%ext::player_env::MUSIC_FACE_CACHE = ();
		3289
		3290	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2497		3291
2498	warn "loading facedata from $path\n";	3292	warn "loading facedata from $path\n";
2499		3293
2500	my $facedata;	3294	my $facedata;
2501	0 < aio_load $path, $facedata	3295	0 < aio_load $path, $facedata
…		…
2504	$facedata = Coro::Storable::thaw $facedata;	3298	$facedata = Coro::Storable::thaw $facedata;
2505		3299
2506	$facedata->{version} == 2	3300	$facedata->{version} == 2
2507	or cf::cleanup "$path: version mismatch, cannot proceed.";	3301	or cf::cleanup "$path: version mismatch, cannot proceed.";
2508		3302
		3303	# patch in the exptable
		3304	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3305	$facedata->{resource}{"res/exp_table"} = {
		3306	type => FT_RSRC,
		3307	data => $exp_table,
		3308	hash => (Digest::MD5::md5 $exp_table),
		3309	};
		3310	cf::cede_to_tick;
		3311
2509	{	3312	{
2510	my $faces = $facedata->{faceinfo};	3313	my $faces = $facedata->{faceinfo};
2511		3314
2512	while (my ($face, $info) = each %$faces) {	3315	while (my ($face, $info) = each %$faces) {
2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3316	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3317
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3318	cf::face::set_visibility $idx, $info->{visibility};
		3319	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3320	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3321	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2517	Coro::cede;	3322
		3323	cf::cede_to_tick;
2518	}	3324	}
2519		3325
2520	while (my ($face, $info) = each %$faces) {	3326	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	3327	next unless $info->{smooth};
		3328
2522	my $idx = cf::face::find $face	3329	my $idx = cf::face::find $face
2523	or next;	3330	or next;
		3331
2524	if (my $smooth = cf::face::find $info->{smooth}) {	3332	if (my $smooth = cf::face::find $info->{smooth}) {
		3333	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3334	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	3335	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	3336	warn "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	3337	}
2529	Coro::cede;	3338
		3339	cf::cede_to_tick;
2530	}	3340	}
2531	}	3341	}
2532		3342
2533	{	3343	{
2534	my $anims = $facedata->{animinfo};	3344	my $anims = $facedata->{animinfo};
2535		3345
2536	while (my ($anim, $info) = each %$anims) {	3346	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	3347	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	3348	cf::cede_to_tick;
2539	}	3349	}
2540		3350
2541	cf::anim::invalidate_all; # d'oh	3351	cf::anim::invalidate_all; # d'oh
2542	}	3352	}
2543		3353
		3354	{
		3355	my $res = $facedata->{resource};
		3356
		3357	while (my ($name, $info) = each %$res) {
		3358	if (defined $info->{type}) {
		3359	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3360
		3361	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3362	cf::face::set_type $idx, $info->{type};
		3363	} else {
		3364	$RESOURCE{$name} = $info;
		3365	}
		3366
		3367	cf::cede_to_tick;
		3368	}
		3369	}
		3370
		3371	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3372
2544	1	3373	1
2545	}	3374	}
2546		3375
		3376	cf::global->attach (on_resource_update => sub {
		3377	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3378	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3379
		3380	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3381	my $sound = $soundconf->{compat}[$_]
		3382	or next;
		3383
		3384	my $face = cf::face::find "sound/$sound->[1]";
		3385	cf::sound::set $sound->[0] => $face;
		3386	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3387	}
		3388
		3389	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3390	my $face = cf::face::find "sound/$v";
		3391	cf::sound::set $k => $face;
		3392	}
		3393	}
		3394	});
		3395
		3396	register_exticmd fx_want => sub {
		3397	my ($ns, $want) = @_;
		3398
		3399	while (my ($k, $v) = each %$want) {
		3400	$ns->fx_want ($k, $v);
		3401	}
		3402	};
		3403
		3404	sub load_resource_file($) {
		3405	my $guard = lock_acquire "load_resource_file";
		3406
		3407	my $status = load_resource_file_ $_[0];
		3408	get_slot 0.1, 100;
		3409	cf::arch::commit_load;
		3410
		3411	$status
		3412	}
		3413
2547	sub reload_regions {	3414	sub reload_regions {
		3415	# HACK to clear player env face cache, we need some signal framework
		3416	# for this (global event?)
		3417	%ext::player_env::MUSIC_FACE_CACHE = ();
		3418
2548	load_resource_file "$MAPDIR/regions"	3419	load_resource_file "$MAPDIR/regions"
2549	or die "unable to load regions file\n";	3420	or die "unable to load regions file\n";
		3421
		3422	for (cf::region::list) {
		3423	$_->{match} = qr/$_->{match}/
		3424	if exists $_->{match};
		3425	}
2550	}	3426	}
2551		3427
2552	sub reload_facedata {	3428	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	3429	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	3430	or die "unable to load facedata\n";
…		…
2565	}	3441	}
2566		3442
2567	sub reload_resources {	3443	sub reload_resources {
2568	warn "reloading resource files...\n";	3444	warn "reloading resource files...\n";
2569		3445
2570	reload_regions;
2571	reload_facedata;	3446	reload_facedata;
2572	reload_archetypes;	3447	reload_archetypes;
		3448	reload_regions;
2573	reload_treasures;	3449	reload_treasures;
2574		3450
2575	warn "finished reloading resource files\n";	3451	warn "finished reloading resource files\n";
2576	}	3452	}
2577		3453
2578	sub init {	3454	sub reload_config {
2579	reload_resources;	3455	warn "reloading config file...\n";
2580	}
2581		3456
2582	sub cfg_load {
2583	open my $fh, "<:utf8", "$CONFDIR/config"	3457	open my $fh, "<:utf8", "$CONFDIR/config"
2584	or return;	3458	or return;
2585		3459
2586	local $/;	3460	local $/;
2587	*CFG = YAML::Syck::Load <$fh>;	3461	*CFG = YAML::XS::Load scalar <$fh>;
2588		3462
2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3463	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2590		3464
2591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3465	$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};	3466	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3470	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2597	and die "WARNING: m(un)lockall failed: $!\n";	3471	and die "WARNING: m(un)lockall failed: $!\n";
2598	};	3472	};
2599	warn $@ if $@;	3473	warn $@ if $@;
2600	}	3474	}
		3475
		3476	warn "finished reloading resource files\n";
		3477	}
		3478
		3479	sub pidfile() {
		3480	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3481	or die "$PIDFILE: $!";
		3482	flock $fh, &Fcntl::LOCK_EX
		3483	or die "$PIDFILE: flock: $!";
		3484	$fh
		3485	}
		3486
		3487	# make sure only one server instance is running at any one time
		3488	sub atomic {
		3489	my $fh = pidfile;
		3490
		3491	my $pid = <$fh>;
		3492	kill 9, $pid if $pid > 0;
		3493
		3494	seek $fh, 0, 0;
		3495	print $fh $$;
		3496	}
		3497
		3498	sub main_loop {
		3499	warn "EV::loop starting\n";
		3500	if (1) {
		3501	EV::loop;
		3502	}
		3503	warn "EV::loop returned\n";
		3504	goto &main_loop unless $REALLY_UNLOOP;
2601	}	3505	}
2602		3506
2603	sub main {	3507	sub main {
		3508	cf::init_globals; # initialise logging
		3509
		3510	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3511	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3512	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3513	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3514
		3515	cf::init_experience;
		3516	cf::init_anim;
		3517	cf::init_attackmess;
		3518	cf::init_dynamic;
		3519
		3520	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3521
2604	# we must not ever block the main coroutine	3522	# we must not ever block the main coroutine
2605	local $Coro::idle = sub {	3523	local $Coro::idle = sub {
2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3524	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2607	(async {	3525	(async {
2608	Event::one_event;	3526	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3527	EV::loop EV::LOOP_ONESHOT;
2609	})->prio (Coro::PRIO_MAX);	3528	})->prio (Coro::PRIO_MAX);
2610	};	3529	};
2611		3530
2612	cfg_load;	3531	evthread_start IO::AIO::poll_fileno;
		3532
		3533	cf::sync_job {
		3534	cf::load_settings;
		3535	cf::load_materials;
		3536
		3537	reload_resources;
		3538	reload_config;
2613	db_init;	3539	db_init;
		3540
		3541	cf::init_uuid;
		3542	cf::init_signals;
		3543	cf::init_commands;
		3544	cf::init_skills;
		3545
		3546	cf::init_beforeplay;
		3547
		3548	atomic;
		3549
2614	load_extensions;	3550	load_extensions;
2615		3551
2616	$TICK_WATCHER->start;	3552	utime time, time, $RUNTIMEFILE;
2617	Event::loop;	3553
		3554	# no (long-running) fork's whatsoever before this point(!)
		3555	use POSIX ();
		3556	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3557
		3558	(pop @POST_INIT)->(0) while @POST_INIT;
		3559	};
		3560
		3561	main_loop;
2618	}	3562	}
2619		3563
2620	#############################################################################	3564	#############################################################################
2621	# initialisation and cleanup	3565	# initialisation and cleanup
2622		3566
2623	# install some emergency cleanup handlers	3567	# install some emergency cleanup handlers
2624	BEGIN {	3568	BEGIN {
		3569	our %SIGWATCHER = ();
2625	for my $signal (qw(INT HUP TERM)) {	3570	for my $signal (qw(INT HUP TERM)) {
2626	Event->signal (	3571	$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";	3572	cf::cleanup "SIG$signal";
2633	},
2634	);	3573	};
		3574	}
		3575	}
		3576
		3577	sub write_runtime_sync {
		3578	my $t0 = EV::time;
		3579
		3580	# first touch the runtime file to show we are still running:
		3581	# the fsync below can take a very very long time.
		3582
		3583	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3584
		3585	my $guard = cf::lock_acquire "write_runtime";
		3586
		3587	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3588	or return;
		3589
		3590	my $value = $cf::RUNTIME + 90 + 10;
		3591	# 10 is the runtime save interval, for a monotonic clock
		3592	# 60 allows for the watchdog to kill the server.
		3593
		3594	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3595	and return;
		3596
		3597	# always fsync - this file is important
		3598	aio_fsync $fh
		3599	and return;
		3600
		3601	# touch it again to show we are up-to-date
		3602	aio_utime $fh, undef, undef;
		3603
		3604	close $fh
		3605	or return;
		3606
		3607	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3608	and return;
		3609
		3610	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3611
2635	}	3612	1
		3613	}
		3614
		3615	our $uuid_lock;
		3616	our $uuid_skip;
		3617
		3618	sub write_uuid_sync($) {
		3619	$uuid_skip ||= $_[0];
		3620
		3621	return if $uuid_lock;
		3622	local $uuid_lock = 1;
		3623
		3624	my $uuid = "$LOCALDIR/uuid";
		3625
		3626	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3627	or return;
		3628
		3629	my $value = uuid_seq uuid_cur;
		3630
		3631	unless ($value) {
		3632	warn "cowardly refusing to write zero uuid value!\n";
		3633	return;
		3634	}
		3635
		3636	my $value = uuid_str $value + $uuid_skip;
		3637	$uuid_skip = 0;
		3638
		3639	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3640	and return;
		3641
		3642	# always fsync - this file is important
		3643	aio_fsync $fh
		3644	and return;
		3645
		3646	close $fh
		3647	or return;
		3648
		3649	aio_rename "$uuid~", $uuid
		3650	and return;
		3651
		3652	warn "uuid file written ($value).\n";
		3653
		3654	1
		3655
		3656	}
		3657
		3658	sub write_uuid($$) {
		3659	my ($skip, $sync) = @_;
		3660
		3661	$sync ? write_uuid_sync $skip
		3662	: async { write_uuid_sync $skip };
2636	}	3663	}
2637		3664
2638	sub emergency_save() {	3665	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	3666	my $freeze_guard = cf::freeze_mainloop;
2640		3667
2641	warn "enter emergency perl save\n";	3668	warn "emergency_perl_save: enter\n";
2642		3669
2643	cf::sync_job {	3670	cf::sync_job {
		3671	# this is a trade-off: we want to be very quick here, so
		3672	# save all maps without fsync, and later call a global sync
		3673	# (which in turn might be very very slow)
		3674	local $USE_FSYNC = 0;
		3675
2644	# use a peculiar iteration method to avoid tripping on perl	3676	# use a peculiar iteration method to avoid tripping on perl
2645	# refcount bugs in for. also avoids problems with players	3677	# refcount bugs in for. also avoids problems with players
2646	# and maps saved/destroyed asynchronously.	3678	# and maps saved/destroyed asynchronously.
2647	warn "begin emergency player save\n";	3679	warn "emergency_perl_save: begin player save\n";
2648	for my $login (keys %cf::PLAYER) {	3680	for my $login (keys %cf::PLAYER) {
2649	my $pl = $cf::PLAYER{$login} or next;	3681	my $pl = $cf::PLAYER{$login} or next;
2650	$pl->valid or next;	3682	$pl->valid or next;
		3683	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2651	$pl->save;	3684	$pl->save;
2652	}	3685	}
2653	warn "end emergency player save\n";	3686	warn "emergency_perl_save: end player save\n";
2654		3687
2655	warn "begin emergency map save\n";	3688	warn "emergency_perl_save: begin map save\n";
2656	for my $path (keys %cf::MAP) {	3689	for my $path (keys %cf::MAP) {
2657	my $map = $cf::MAP{$path} or next;	3690	my $map = $cf::MAP{$path} or next;
2658	$map->valid or next;	3691	$map->valid or next;
2659	$map->save;	3692	$map->save;
2660	}	3693	}
2661	warn "end emergency map save\n";	3694	warn "emergency_perl_save: end map save\n";
2662		3695
2663	warn "begin emergency database checkpoint\n";	3696	warn "emergency_perl_save: begin database checkpoint\n";
2664	BDB::db_env_txn_checkpoint $DB_ENV;	3697	BDB::db_env_txn_checkpoint $DB_ENV;
2665	warn "end emergency database checkpoint\n";	3698	warn "emergency_perl_save: end database checkpoint\n";
		3699
		3700	warn "emergency_perl_save: begin write uuid\n";
		3701	write_uuid_sync 1;
		3702	warn "emergency_perl_save: end write uuid\n";
2666	};	3703	};
2667		3704
		3705	warn "emergency_perl_save: starting sync()\n";
		3706	IO::AIO::aio_sync sub {
		3707	warn "emergency_perl_save: finished sync()\n";
		3708	};
		3709
2668	warn "leave emergency perl save\n";	3710	warn "emergency_perl_save: leave\n";
2669	}	3711	}
2670		3712
2671	sub post_cleanup {	3713	sub post_cleanup {
2672	my ($make_core) = @_;	3714	my ($make_core) = @_;
2673		3715
2674	warn Carp::longmess "post_cleanup backtrace"	3716	warn Carp::longmess "post_cleanup backtrace"
2675	if $make_core;	3717	if $make_core;
		3718
		3719	my $fh = pidfile;
		3720	unlink $PIDFILE if <$fh> == $$;
		3721	}
		3722
		3723	# a safer delete_package, copied from Symbol
		3724	sub clear_package($) {
		3725	my $pkg = shift;
		3726
		3727	# expand to full symbol table name if needed
		3728	unless ($pkg =~ /^main::.*::$/) {
		3729	$pkg = "main$pkg" if $pkg =~ /^::/;
		3730	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3731	$pkg .= '::' unless $pkg =~ /::$/;
		3732	}
		3733
		3734	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3735	my $stem_symtab = *{$stem}{HASH};
		3736
		3737	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3738	or return;
		3739
		3740	# clear all symbols
		3741	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3742	for my $name (keys %$leaf_symtab) {
		3743	_gv_clear *{"$pkg$name"};
		3744	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3745	}
		3746	warn "cleared package $pkg\n";#d#
2676	}	3747	}
2677		3748
2678	sub do_reload_perl() {	3749	sub do_reload_perl() {
2679	# can/must only be called in main	3750	# can/must only be called in main
2680	if ($Coro::current != $Coro::main) {	3751	if ($Coro::current != $Coro::main) {
2681	warn "can only reload from main coroutine";	3752	warn "can only reload from main coroutine";
2682	return;	3753	return;
2683	}	3754	}
2684		3755
		3756	return if $RELOAD++;
		3757
		3758	my $t1 = EV::time;
		3759
		3760	while ($RELOAD) {
2685	warn "reloading...";	3761	warn "reloading...";
2686		3762
2687	warn "entering sync_job";	3763	warn "entering sync_job";
2688		3764
2689	cf::sync_job {	3765	cf::sync_job {
2690	cf::write_runtime; # external watchdog should not bark	3766	cf::write_runtime_sync; # external watchdog should not bark
2691	cf::emergency_save;	3767	cf::emergency_save;
2692	cf::write_runtime; # external watchdog should not bark	3768	cf::write_runtime_sync; # external watchdog should not bark
2693		3769
2694	warn "syncing database to disk";	3770	warn "syncing database to disk";
2695	BDB::db_env_txn_checkpoint $DB_ENV;	3771	BDB::db_env_txn_checkpoint $DB_ENV;
2696		3772
2697	# if anything goes wrong in here, we should simply crash as we already saved	3773	# if anything goes wrong in here, we should simply crash as we already saved
2698		3774
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";	3775	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;	3776	while (IO::AIO::nreqs || BDB::nreqs) {
2710	warn "iterate...";	3777	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	}	3778	}
2735		3779
2736	warn "... nuking $pkg";	3780	warn "cancelling all extension coros";
2737	Symbol::delete_package $pkg;	3781	$_->cancel for values %EXT_CORO;
2738	}	3782	%EXT_CORO = ();
2739		3783
2740	warn "unloading all perl modules loaded from $LIBDIR";	3784	warn "removing commands";
2741	while (my ($k, $v) = each %INC) {	3785	%COMMAND = ();
2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2743		3786
		3787	warn "removing ext/exti commands";
		3788	%EXTCMD = ();
		3789	%EXTICMD = ();
		3790
		3791	warn "unloading/nuking all extensions";
		3792	for my $pkg (@EXTS) {
2744	warn "... unloading $k";	3793	warn "... unloading $pkg";
2745	delete $INC{$k};
2746		3794
2747	$k =~ s/\.pm$//;
2748	$k =~ s/\//::/g;
2749
2750	if (my $cb = $k->can ("unload_module")) {	3795	if (my $cb = $pkg->can ("unload")) {
		3796	eval {
2751	$cb->();	3797	$cb->($pkg);
		3798	1
		3799	} or warn "$pkg unloaded, but with errors: $@";
		3800	}
		3801
		3802	warn "... clearing $pkg";
		3803	clear_package $pkg;
2752	}	3804	}
2753		3805
2754	Symbol::delete_package $k;	3806	warn "unloading all perl modules loaded from $LIBDIR";
		3807	while (my ($k, $v) = each %INC) {
		3808	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3809
		3810	warn "... unloading $k";
		3811	delete $INC{$k};
		3812
		3813	$k =~ s/\.pm$//;
		3814	$k =~ s/\//::/g;
		3815
		3816	if (my $cb = $k->can ("unload_module")) {
		3817	$cb->();
		3818	}
		3819
		3820	clear_package $k;
2755	}	3821	}
2756		3822
2757	warn "getting rid of safe::, as good as possible";	3823	warn "getting rid of safe::, as good as possible";
2758	Symbol::delete_package "safe::$_"	3824	clear_package "safe::$_"
2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3825	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2760		3826
2761	warn "unloading cf.pm \"a bit\"";	3827	warn "unloading cf.pm \"a bit\"";
2762	delete $INC{"cf.pm"};	3828	delete $INC{"cf.pm"};
2763	delete $INC{"cf/pod.pm"};	3829	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2764		3830
2765	# don't, removes xs symbols, too,	3831	# don't, removes xs symbols, too,
2766	# and global variables created in xs	3832	# and global variables created in xs
2767	#Symbol::delete_package __PACKAGE__;	3833	#clear_package __PACKAGE__;
2768		3834
2769	warn "unload completed, starting to reload now";	3835	warn "unload completed, starting to reload now";
2770		3836
2771	warn "reloading cf.pm";	3837	warn "reloading cf.pm";
2772	require cf;	3838	require cf;
2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3839	cf::_connect_to_perl_1;
2774		3840
2775	warn "loading config and database again";	3841	warn "loading config and database again";
2776	cf::cfg_load;	3842	cf::reload_config;
2777		3843
2778	warn "loading extensions";	3844	warn "loading extensions";
2779	cf::load_extensions;	3845	cf::load_extensions;
2780		3846
		3847	if ($REATTACH_ON_RELOAD) {
2781	warn "reattaching attachments to objects/players";	3848	warn "reattaching attachments to objects/players";
2782	_global_reattach; # objects, sockets	3849	_global_reattach; # objects, sockets
2783	warn "reattaching attachments to maps";	3850	warn "reattaching attachments to maps";
2784	reattach $_ for values %MAP;	3851	reattach $_ for values %MAP;
2785	warn "reattaching attachments to players";	3852	warn "reattaching attachments to players";
2786	reattach $_ for values %PLAYER;	3853	reattach $_ for values %PLAYER;
		3854	}
2787		3855
		3856	warn "running post_init jobs";
		3857	(pop @POST_INIT)->(1) while @POST_INIT;
		3858
2788	warn "leaving sync_job";	3859	warn "leaving sync_job";
2789		3860
2790	1	3861	1
2791	} or do {	3862	} or do {
2792	warn $@;	3863	warn $@;
2793	warn "error while reloading, exiting.";	3864	cf::cleanup "error while reloading, exiting.";
2794	exit 1;
2795	};	3865	};
2796		3866
2797	warn "reloaded";	3867	warn "reloaded";
		3868	--$RELOAD;
		3869	}
		3870
		3871	$t1 = EV::time - $t1;
		3872	warn "reload completed in ${t1}s\n";
2798	};	3873	};
2799		3874
2800	our $RELOAD_WATCHER; # used only during reload	3875	our $RELOAD_WATCHER; # used only during reload
2801		3876
2802	sub reload_perl() {	3877	sub reload_perl() {
2803	# doing reload synchronously and two reloads happen back-to-back,	3878	# doing reload synchronously and two reloads happen back-to-back,
2804	# coro crashes during coro_state_free->destroy here.	3879	# coro crashes during coro_state_free->destroy here.
2805		3880
2806	$RELOAD_WATCHER ||= Event->timer (	3881	$RELOAD_WATCHER ||= cf::async {
2807	reentrant => 0,	3882	Coro::AIO::aio_wait cache_extensions;
2808	after => 0,	3883
2809	data => WF_AUTOCANCEL,	3884	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2810	cb => sub {
2811	do_reload_perl;	3885	do_reload_perl;
2812	undef $RELOAD_WATCHER;	3886	undef $RELOAD_WATCHER;
2813	},	3887	};
2814	);	3888	};
2815	}	3889	}
2816		3890
2817	register_command "reload" => sub {	3891	register_command "reload" => sub {
2818	my ($who, $arg) = @_;	3892	my ($who, $arg) = @_;
2819		3893
2820	if ($who->flag (FLAG_WIZ)) {	3894	if ($who->flag (FLAG_WIZ)) {
2821	$who->message ("reloading server.");	3895	$who->message ("reloading server.");
		3896	async {
		3897	$Coro::current->{desc} = "perl_reload";
2822	async { reload_perl };	3898	reload_perl;
		3899	};
2823	}	3900	}
2824	};	3901	};
2825		3902
2826	unshift @INC, $LIBDIR;	3903	unshift @INC, $LIBDIR;
2827		3904
…		…
2829		3906
2830	our @WAIT_FOR_TICK;	3907	our @WAIT_FOR_TICK;
2831	our @WAIT_FOR_TICK_BEGIN;	3908	our @WAIT_FOR_TICK_BEGIN;
2832		3909
2833	sub wait_for_tick {	3910	sub wait_for_tick {
2834	return unless $TICK_WATCHER->is_active;
2835	return if $Coro::current == $Coro::main;	3911	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2836		3912
2837	my $signal = new Coro::Signal;	3913	my $signal = new Coro::Signal;
2838	push @WAIT_FOR_TICK, $signal;	3914	push @WAIT_FOR_TICK, $signal;
2839	$signal->wait;	3915	$signal->wait;
2840	}	3916	}
2841		3917
2842	sub wait_for_tick_begin {	3918	sub wait_for_tick_begin {
2843	return unless $TICK_WATCHER->is_active;
2844	return if $Coro::current == $Coro::main;	3919	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2845		3920
2846	my $signal = new Coro::Signal;	3921	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	3922	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	3923	$signal->wait;
2849	}	3924	}
2850		3925
2851	$TICK_WATCHER = Event->timer (	3926	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) {	3927	if ($Coro::current != $Coro::main) {
2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3928	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2860	unless ++$bug_warning > 10;	3929	unless ++$bug_warning > 10;
2861	return;	3930	return;
2862	}	3931	}
2863		3932
2864	$NOW = $tick_start = Event::time;
2865
2866	cf::server_tick; # one server iteration	3933	cf::server_tick; # one server iteration
2867		3934
2868	$RUNTIME += $TICK;	3935	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2869	$NEXT_TICK += $TICK;
2870		3936
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3937	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2872	$NEXT_RUNTIME_WRITE = $NOW + 10;	3938	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2873	Coro::async_pool {	3939	Coro::async_pool {
		3940	$Coro::current->{desc} = "runtime saver";
2874	write_runtime	3941	write_runtime_sync
2875	or warn "ERROR: unable to write runtime file: $!";	3942	or warn "ERROR: unable to write runtime file: $!";
2876	};
2877	}	3943	};
		3944	}
2878		3945
2879	# my $AFTER = Event::time;
2880	# warn $AFTER - $NOW;#d#
2881
2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3946	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2883	$sig->send;	3947	$sig->send;
2884	}	3948	}
2885	while (my $sig = shift @WAIT_FOR_TICK) {	3949	while (my $sig = shift @WAIT_FOR_TICK) {
2886	$sig->send;	3950	$sig->send;
2887	}	3951	}
2888		3952
2889	$NOW = Event::time;	3953	$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;	3954	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2899		3955
2900	_post_tick;	3956	if (0) {
2901		3957	if ($NEXT_TICK) {
2902		3958	my $jitter = $TICK_START - $NEXT_TICK;
		3959	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3960	warn "jitter $JITTER\n";#d#
		3961	}
2903	},	3962	}
2904	);	3963	}
2905		3964
2906	{	3965	{
2907	BDB::max_poll_time $TICK * 0.1;	3966	# configure BDB
2908	$BDB_POLL_WATCHER = Event->io (	3967
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;	3968	BDB::min_parallel 16;
2917		3969	BDB::max_poll_reqs $TICK * 0.1;
2918	BDB::set_sync_prepare {	3970	$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		3971
2933	unless ($DB_ENV) {	3972	unless ($DB_ENV) {
2934	$DB_ENV = BDB::db_env_create;	3973	$DB_ENV = BDB::db_env_create;
		3974	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3975	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3976	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3977	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3978	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2935		3979
2936	cf::sync_job {	3980	cf::sync_job {
2937	eval {	3981	eval {
2938	BDB::db_env_open	3982	BDB::db_env_open
2939	$DB_ENV,	3983	$DB_ENV,
…		…
2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3985	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3986	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2943	0666;	3987	0666;
2944		3988
2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3989	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	};	3990	};
2950		3991
2951	cf::cleanup "db_env_open(db): $@" if $@;	3992	cf::cleanup "db_env_open(db): $@" if $@;
2952	};	3993	};
2953	}	3994	}
		3995
		3996	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3997	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3998	};
		3999	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4000	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4001	};
		4002	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4003	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4004	};
2954	}	4005	}
2955		4006
2956	{	4007	{
		4008	# configure IO::AIO
		4009
2957	IO::AIO::min_parallel 8;	4010	IO::AIO::min_parallel 8;
2958
2959	undef $Coro::AIO::WATCHER;
2960	IO::AIO::max_poll_time $TICK * 0.1;	4011	IO::AIO::max_poll_time $TICK * 0.1;
2961	$AIO_POLL_WATCHER = Event->io (	4012	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	}	4013	}
2970		4014
2971	my $_log_backtrace;	4015	my $_log_backtrace;
2972		4016
2973	sub _log_backtrace {	4017	sub _log_backtrace {
…		…
2976	$msg =~ s/\n//;	4020	$msg =~ s/\n//;
2977		4021
2978	# limit the # of concurrent backtraces	4022	# limit the # of concurrent backtraces
2979	if ($_log_backtrace < 2) {	4023	if ($_log_backtrace < 2) {
2980	++$_log_backtrace;	4024	++$_log_backtrace;
		4025	my $perl_bt = Carp::longmess $msg;
2981	async {	4026	async {
		4027	$Coro::current->{desc} = "abt $msg";
		4028
2982	my @bt = fork_call {	4029	my @bt = fork_call {
2983	@addr = map { sprintf "%x", $_ } @addr;	4030	@addr = map { sprintf "%x", $_ } @addr;
2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4031	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4032	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2986	or die "addr2line: $!";	4033	or die "addr2line: $!";
…		…
2994	}	4041	}
2995		4042
2996	@funcs	4043	@funcs
2997	};	4044	};
2998		4045
2999	LOG llevInfo, "[ABT] $msg\n";	4046	LOG llevInfo, "[ABT] $perl_bt\n";
		4047	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3000	LOG llevInfo, "[ABT] $_\n" for @bt;	4048	LOG llevInfo, "[ABT] $_\n" for @bt;
3001	--$_log_backtrace;	4049	--$_log_backtrace;
3002	};	4050	};
3003	} else {	4051	} else {
3004	LOG llevInfo, "[ABT] $msg\n";	4052	LOG llevInfo, "[ABT] $msg\n";
3005	LOG llevInfo, "[ABT] [suppressed]\n";	4053	LOG llevInfo, "[ABT] [suppressed]\n";
3006	}	4054	}
3007	}	4055	}
3008		4056
3009	# load additional modules	4057	# load additional modules
3010	use cf::pod;	4058	require "cf/$_.pm" for @EXTRA_MODULES;
		4059	cf::_connect_to_perl_2;
3011		4060
3012	END { cf::emergency_save }	4061	END { cf::emergency_save }
3013		4062
3014	1	4063	1
3015		4064

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