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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.511 by root, Wed Apr 7 18:35:56 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 Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		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";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	115	our $NEXT_TICK;
50	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
51		124
52	our %CFG;	125	our %CFG;
53		126
54	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
56		130
57	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	133	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		134
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	135	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
64		147
65	binmode STDOUT;	148	binmode STDOUT;
66	binmode STDERR;	149	binmode STDERR;
67		150
68	# read virtual server time, if available	151	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
73	}	156	}
74		157
75	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		159
81	# a special map that is always available	160	mkdir $_
82	our $LINK_MAP;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
83	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
		164
		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::"} };
84		177
85	#############################################################################	178	#############################################################################
86		179
87	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
88		181
…		…
95	=item $cf::RUNTIME	188	=item $cf::RUNTIME
96		189
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	191	every server tick.
99		192
100	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		196
102	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
104		201
105	=item $cf::NOW	202	=item $cf::NOW
106		203
107	The time of the last (current) server tick.	204	The time of the last (current) server tick.
108		205
109	=item $cf::TICK	206	=item $cf::TICK
110		207
111	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
112		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
113	=item %cf::CFG	220	=item %cf::CFG
114		221
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	223	from wherever your confdir points to.
117		224
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		226
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	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.
124		242
125	=back	243	=back
126		244
127	=cut	245	=cut
128		246
129	BEGIN {	247	$Coro::State::WARNHOOK = sub {
130	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	248	my $msg = join "", @_;
132	utf8::encode $msg;
133		249
134	$msg .= "\n"	250	$msg .= "\n"
135	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
136		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
137	LOG llevError, $msg;	255	LOG llevError, $msg;
138	};	256	};
139	}	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	};
140		271
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		279
148	# 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
149	# within the Safe compartment.	281	# within the Safe compartment.
150	for my $pkg (qw(	282	for my $pkg (qw(
151	cf::global cf::attachable	283	cf::global cf::attachable
152	cf::object cf::object::player	284	cf::object cf::object::player
153	cf::client cf::player	285	cf::client cf::player
154	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
155	cf::map cf::party cf::region	288	cf::party cf::region
156	)) {	289	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	291	}
160		292
161	$Event::DIED = sub {	293	$EV::DIED = sub {
162	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
163	};	295	};
		296
		297	#############################################################################
164		298
165	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
166		300
167	=over 4	301	=over 4
168		302
…		…
187	$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;
188	$d	322	$d
189	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
190	}	324	}
191		325
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
195		327
196	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
197		329
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
206		331
207	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
208		333
209	=cut	334	=cut
210		335
211	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
213	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[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;
214	}	353	}
215		354
216	=item cf::lock_wait $string	355	=item cf::lock_wait $string
217		356
218	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
219		358
220	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
221		360
222	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
223	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,
224	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
225	returned.	364	returned.
226		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
227	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
228	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
229		371
230	=cut	372	=item $locked = cf::lock_active $string
231		373
232	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
233		379
234	sub lock_wait($) {	380	sub lock_wait($) {
235	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	382	}
243		383
244	sub lock_acquire($) {	384	sub lock_acquire($) {
245	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
246		387
247	# wait, to be sure we are not locked	388	sub lock_active($) {
248	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	390	}
257		391
258	sub freeze_mainloop {	392	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
260		394
261	my $guard = Coro::guard { $TICK_WATCHER->start };	395	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	396	}
263	$guard	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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
		462	}
		463	};
		464
		465	sub get_slot($;$$) {
		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	$sig->wait;
264	}	478	}
265		479
266	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
267		481
268	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		487
274	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
275		489
276	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
277		491
278	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
281		496
282	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
285	fast or be very important.	500	fast or be very important.
…		…
288		503
289	sub sync_job(&) {	504	sub sync_job(&) {
290	my ($job) = @_;	505	my ($job) = @_;
291		506
292	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
293	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
295		512
296	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	514
298	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
299		516
300	my $busy = 1;	517	my $busy = 1;
301	my @res;	518	my @res;
302		519
303	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	522	@res = eval { $job->() };
305	warn $@ if $@;	523	warn $@ if $@;
306	undef $busy;	524	undef $busy;
307	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
308		526
309	while ($busy) {	527	while ($busy) {
310	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
311	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
312		538
313	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
314	} else {	540	} else {
315	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
316		542
…		…
336	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
337		563
338	$coro	564	$coro
339	}	565	}
340		566
341	sub write_runtime {	567	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		568
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	569	Executes the given code block with the given arguments in a seperate
345	or return;	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.
346		573
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	574	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		575
351	aio_fsync $fh	576	sub fork_call(&@) {
352	and return;	577	my ($cb, @args) = @_;
353		578
354	close $fh	579	# we seemingly have to make a local copy of the whole thing,
355	or return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
356		582
357	aio_rename "$runtime~", $runtime	583	my @res = Coro::Util::fork_eval {
358	and return;	584	reset_signals;
		585	&$cb
		586	}, @args;
359		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 $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
360	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		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"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	754	}
362		755
363	=back	756	=back
364		757
365	=cut	758	=cut
366		759
367	#############################################################################	760	#############################################################################
368		761
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522
523	#############################################################################
524
525	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
526		763
527	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
528	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")
529	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
530		767
531	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>
532	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
533	crossfire+).	770	Deliantra).
534		771
535	=over 4	772	=over 4
536		773
537	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
538		775
…		…
582	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
583		820
584	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
585	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
586		823
587	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
588	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.
589		826
590	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
591		828
592	=over 4	829	=over 4
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	889	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	890	our @CB_MAP = ();
654		891
655	my %attachment;	892	my %attachment;
656		893
		894	sub cf::attachable::thawer_merge {
		895	# simply override everything except _meta
		896	local $_[0]{_meta};
		897	%{$_[0]} = %{$_[1]};
		898	}
		899
657	sub _attach_cb($$$$) {	900	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	901	my ($registry, $event, $prio, $cb) = @_;
659		902
660	use sort 'stable';	903	use sort 'stable';
661		904
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
696		939
697	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		944
702	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	946	my $pkg = shift @arg;
704		947
705	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
735	}	978	}
736		979
737	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
738	} else {	981	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	983	}
741		984
742	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
743	}	986	}
744		987
…		…
746	if (ref $_[0]) {	989	if (ref $_[0]) {
747	_object_attach @_;	990	_object_attach @_;
748	} else {	991	} else {
749	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
750	}	993	}
		994	_recalc_want;
751	};	995	};
752		996
753	# all those should be optimised	997	# all those should be optimised
754	sub cf::attachable::detach {	998	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
759	reattach ($obj);	1003	reattach ($obj);
760	} else {	1004	} else {
761	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
762	}	1006	}
		1007	_recalc_want;
763	};	1008	};
764		1009
765	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
767		1012
…		…
782	";	1027	";
783	die if $@;	1028	die if $@;
784	}	1029	}
785		1030
786	our $override;	1031	our $override;
787	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?
788		1033
789	sub override {	1034	sub override {
790	$override = 1;	1035	$override = 1;
791	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
792	}	1037	}
793		1038
794	sub do_invoke {	1039	sub do_invoke {
795	my $event = shift;	1040	my $event = shift;
796	my $callbacks = shift;	1041	my $callbacks = shift;
797		1042
798	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
799		1044
800	local $override;	1045	local $override;
801		1046
802	for (@$callbacks) {	1047	for (@$callbacks) {
803	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
812	}	1057	}
813		1058
814	0	1059	0
815	}	1060	}
816		1061
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1063
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1065
821	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
822		1067
823	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
824	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
825	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1071
827	=back	1072	=back
828		1073
829	=cut	1074	=cut
830		1075
831	#############################################################################	1076	#############################################################################
832	# 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	}
833		1120
834	sub reattach {	1121	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	1123	my ($obj) = @_;
		1124
		1125	# no longer needed after getting rid of delete_package?
		1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		1127
838	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
839		1129
840	@$registry = ();	1130	@$registry = ();
841		1131
…		…
856	cf::attachable->attach (	1146	cf::attachable->attach (
857	prio => -1000000,	1147	prio => -1000000,
858	on_instantiate => sub {	1148	on_instantiate => sub {
859	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
860		1150
861	$data = from_json $data;	1151	$data = decode_json $data;
862		1152
863	for (@$data) {	1153	for (@$data) {
864	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
865		1155
866	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1172	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
884		1174
885	sync_job {	1175	sync_job {
886	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
889		1180
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		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;
893	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
894	close $fh;	1188	aio_close $fh;
895		1189
896	if (@$objs) {	1190	if (@$objs) {
897	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) {
898	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
		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;
901	aio_fsync $fh;	1197	aio_fsync $fh;
		1198	}
902	close $fh;	1199	aio_close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
904	}	1201	}
905	} else {	1202	} else {
906	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
907	}	1204	}
908		1205
909	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
910	} else {	1210	} else {
911	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
912	}	1212	}
913	} else {	1213	} else {
914	aio_unlink $filename;	1214	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
916	}	1216	}
917	}	1217	};
918	}	1218	}
919		1219
920	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
922		1222
…		…
934	or return;	1234	or return;
935		1235
936	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
938	or return;	1238	or return;
		1239
939	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
940	}	1242	}
941		1243
		1244	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
944	return ($data, $av);	1248	($data, $av)
945	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
946		1256
947	#############################################################################	1257	#############################################################################
948	# command handling &c	1258	# command handling &c
949		1259
950	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1274	}
965		1275
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1277
968	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.
969		1283
970	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
971	called.	1285	called.
972		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
973	=cut	1298	=cut
974		1299
975	sub register_extcmd {	1300	sub register_extcmd {
976	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
977		1302
978	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
979	}	1304	}
980		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
981	cf::player->attach (	1314	cf::player->attach (
982	on_command => sub {	1315	on_unknown_command => sub {
983	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
984		1317
985	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
986	or return;	1319	or return;
987		1320
…		…
992	cf::override;	1325	cf::override;
993	},	1326	},
994	on_extcmd => sub {	1327	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
996		1329
997	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1331
999	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
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
1005	} else {	1347	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1349	}
1008		1350
1009	cf::override;	1351	cf::override;
1010	},	1352	},
1011	);	1353	);
1012		1354
		1355	# "readahead" all extensions
1013	sub load_extension {	1356	sub cache_extensions {
1014	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
1015		1358
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1017	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
1018	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1019	$pkg =~ s/[^[:word:]]/_/g;	1362	}
1020	$pkg = "ext::$pkg";	1363	};
1021		1364
1022	warn "... loading '$path' into '$pkg'\n";	1365	$grp
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}	1366	}
1039		1367
1040	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
1041	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1373	next unless -r $path;
1043	eval {	1374
1044	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	}
1045	1	1435	}
1046	} 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	}
1047	}	1446	};
1048	}	1447	}
1049		1448
1050	#############################################################################	1449	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1450
1053	*cf::mapsupport::on_clean = sub {	1451	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1452
1066	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
1067		1454
1068	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
1069		1456
1070	=cut	1457	=cut
1071		1458
1072	package cf::player;	1459	package cf::player;
1073		1460
…		…
1075		1462
1076	=head3 cf::player	1463	=head3 cf::player
1077		1464
1078	=over 4	1465	=over 4
1079		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	}
		1480
1080	=item cf::player::find $login	1481	=item cf::player::find $login
1081		1482
1082	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
1083		1484
1084	=cut	1485	=cut
1085		1486
1086	sub playerdir($) {	1487	sub playerdir($) {
1087	cf::localdir	1488	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1490	}
1093		1491
1094	sub path($) {	1492	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1494
1097	(playerdir $login) . "/$login.pl"	1495	(playerdir $login) . "/playerdata"
1098	}	1496	}
1099		1497
1100	sub find_active($) {	1498	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
1105		1503
1106	sub exists($) {	1504	sub exists($) {
1107	my ($login) = @_;	1505	my ($login) = @_;
1108		1506
1109	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1508	or !aio_stat path $login
1111	}	1509	}
1112		1510
1113	sub find($) {	1511	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1513	my $login = $_[0];
1116		1514
1117	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
1118		1516
1119	$cf::PLAYER{$_[0]} || do {	1517	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
1121	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;
1122	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1123	}	1534	}
1124	}	1535	}
1125	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
1126		1550
1127	sub save($) {	1551	sub save($) {
1128	my ($pl) = @_;	1552	my ($pl) = @_;
1129		1553
1130	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
1135	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
1136		1560
1137	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1139		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
1140	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
1141	Coro::cede;	1570	cf::cede_to_tick;
1142	}	1571	}
1143		1572
1144	sub new($) {	1573	sub new($) {
1145	my ($login) = @_;	1574	my ($login) = @_;
1146		1575
…		…
1152	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1153		1582
1154	$self	1583	$self
1155	}	1584	}
1156		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1157	=item $pl->quit_character	1596	=item $pl->quit_character
1158		1597
1159	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1161		1600
1162	=cut	1601	=cut
1163		1602
1164	sub quit_character {	1603	sub quit_character {
1165	my ($pl) = @_;	1604	my ($pl) = @_;
1166		1605
		1606	my $name = $pl->ob->name;
		1607
1167	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1169		1610
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1171	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1173	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1174		1617
1175	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1620	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1621	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1622	$pl->destroy;
		1623
		1624	my $prefix = qr<^~\Q$name\E/>;
		1625
		1626	# nuke player maps
		1627	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1628
1180	IO::AIO::aio_rmtree $temp;	1629	IO::AIO::aio_rmtree $temp;
		1630	}
		1631
		1632	=item $pl->kick
		1633
		1634	Kicks a player out of the game. This destroys the connection.
		1635
		1636	=cut
		1637
		1638	sub kick {
		1639	my ($pl, $kicker) = @_;
		1640
		1641	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1642	$pl->killer ("kicked");
		1643	$pl->ns->destroy;
1181	}	1644	}
1182		1645
1183	=item cf::player::list_logins	1646	=item cf::player::list_logins
1184		1647
1185	Returns am arrayref of all valid playernames in the system, can take a	1648	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1649	while and may block, so not sync_job-capable, ever.
1187		1650
1188	=cut	1651	=cut
1189		1652
1190	sub list_logins {	1653	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1654	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1655	or return [];
1193		1656
1194	my @logins;	1657	my @logins;
1195		1658
1196	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1200		1669
1201	utf8::decode $login;	1670	utf8::decode $login;
1202	push @logins, $login;	1671	push @logins, $login;
1203	}	1672	}
1204		1673
1205	\@logins	1674	\@logins
1206	}	1675	}
1207		1676
1208	=item $player->maps	1677	=item $player->maps
1209		1678
1210	Returns an arrayref of cf::path's of all maps that are private for this	1679	Returns an arrayref of map paths that are private for this
1211	player. May block.	1680	player. May block.
1212		1681
1213	=cut	1682	=cut
1214		1683
1215	sub maps($) {	1684	sub maps($) {
1216	my ($pl) = @_;	1685	my ($pl) = @_;
		1686
		1687	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1688
1218	my $files = aio_readdir playerdir $pl	1689	my $files = aio_readdir playerdir $pl
1219	or return;	1690	or return;
1220		1691
1221	my @paths;	1692	my @paths;
…		…
1223	for (@$files) {	1694	for (@$files) {
1224	utf8::decode $_;	1695	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1696	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1697	next unless /^$PATH_SEP/o;
1227		1698
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1699	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1700	}
1230		1701
1231	\@paths	1702	\@paths
1232	}	1703	}
1233		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1235		1710
1236	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1237		1712
1238	=cut	1713	=cut
1239		1714
1240	sub ext_reply($$$%) {	1715	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1242		1717
1243	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1719	}
1247		1720
1248	package cf;	1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
		1748	my ($path) = @_;
		1749
		1750	my ($match, $specificity);
		1751
		1752	for my $region (list) {
		1753	if ($region->{match} && $path =~ $region->{match}) {
		1754	($match, $specificity) = ($region, $region->specificity)
		1755	if $region->specificity > $specificity;
		1756	}
		1757	}
		1758
		1759	$match
		1760	}
1249		1761
1250	=back	1762	=back
1251
1252		1763
1253	=head3 cf::map	1764	=head3 cf::map
1254		1765
1255	=over 4	1766	=over 4
1256		1767
…		…
1259	package cf::map;	1770	package cf::map;
1260		1771
1261	use Fcntl;	1772	use Fcntl;
1262	use Coro::AIO;	1773	use Coro::AIO;
1263		1774
		1775	use overload
		1776	'""' => \&as_string,
		1777	fallback => 1;
		1778
1264	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1266		1781
1267	sub generate_random_map {	1782	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1269		1786
1270	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1788	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1278	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1279	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1798	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1799	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1800	)
1285	}	1801	}
1286		1802
1287	# and all this just because we cannot iterate over	1803	=item cf::map->register ($regex, $prio)
1288	# all maps in C++...
1289	sub change_all_map_light {
1290	my ($change) = @_;
1291		1804
1292	$_->change_map_light ($change)	1805	Register a handler for the map path matching the given regex at the
1293	for grep $_->outdoor, values %cf::MAP;	1806	givne priority (higher is better, built-in handlers have priority 0, the
1294	}	1807	default).
1295		1808
1296	sub load_map_header($) {	1809	=cut
		1810
		1811	sub register {
		1812	my (undef, $regex, $prio) = @_;
		1813	my $pkg = caller;
		1814
		1815	no strict;
		1816	push @{"$pkg\::ISA"}, __PACKAGE__;
		1817
		1818	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1819	}
		1820
		1821	# also paths starting with '/'
		1822	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1823
		1824	sub thawer_merge {
		1825	my ($self, $merge) = @_;
		1826
		1827	# we have to keep some variables in memory intact
		1828	local $self->{path};
		1829	local $self->{load_path};
		1830
		1831	$self->SUPER::thawer_merge ($merge);
		1832	}
		1833
		1834	sub normalise {
1297	my ($path) = @_;	1835	my ($path, $base) = @_;
		1836
		1837	$path = "$path"; # make sure its a string
		1838
		1839	$path =~ s/\.map$//;
		1840
		1841	# map plan:
		1842	#
		1843	# /! non-realised random map exit (special hack!)
		1844	# {... are special paths that are not being touched
		1845	# ?xxx/... are special absolute paths
		1846	# ?random/... random maps
		1847	# /... normal maps
		1848	# ~user/... per-player map of a specific user
		1849
		1850	$path =~ s/$PATH_SEP/\//go;
		1851
		1852	# treat it as relative path if it starts with
		1853	# something that looks reasonable
		1854	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1855	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1856
		1857	$base =~ s{[^/]+/?$}{};
		1858	$path = "$base/$path";
		1859	}
		1860
		1861	for ($path) {
		1862	redo if s{//}{/};
		1863	redo if s{/\.?/}{/};
		1864	redo if s{/[^/]+/\.\./}{/};
		1865	}
		1866
		1867	$path
		1868	}
		1869
		1870	sub new_from_path {
		1871	my (undef, $path, $base) = @_;
		1872
		1873	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1874
		1875	$path = normalise $path, $base;
		1876
		1877	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1878	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1879	my $self = bless cf::map::new, $pkg;
		1880	$self->{path} = $path; $self->path ($path);
		1881	$self->init; # pass $1 etc.
		1882	return $self;
		1883	}
		1884	}
		1885
		1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1887	()
		1888	}
		1889
		1890	sub init {
		1891	my ($self) = @_;
		1892
		1893	$self
		1894	}
		1895
		1896	sub as_string {
		1897	my ($self) = @_;
		1898
		1899	"$self->{path}"
		1900	}
		1901
		1902	# the displayed name, this is a one way mapping
		1903	sub visible_name {
		1904	&as_string
		1905	}
		1906
		1907	# the original (read-only) location
		1908	sub load_path {
		1909	my ($self) = @_;
		1910
		1911	"$MAPDIR/$self->{path}.map"
		1912	}
		1913
		1914	# the temporary/swap location
		1915	sub save_path {
		1916	my ($self) = @_;
		1917
		1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1919	"$TMPDIR/$path.map"
		1920	}
		1921
		1922	# the unique path, undef == no special unique path
		1923	sub uniq_path {
		1924	my ($self) = @_;
		1925
		1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1927	"$UNIQUEDIR/$path"
		1928	}
		1929
		1930	sub decay_objects {
		1931	my ($self) = @_;
		1932
		1933	return if $self->{deny_reset};
		1934
		1935	$self->do_decay_objects;
		1936	}
		1937
		1938	sub unlink_save {
		1939	my ($self) = @_;
		1940
		1941	utf8::encode (my $save = $self->save_path);
		1942	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1943	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1944	}
		1945
		1946	sub load_header_from($) {
		1947	my ($self, $path) = @_;
1298		1948
1299	utf8::encode $path;	1949	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1301	or return;	1951	or return;
1302		1952
1303	my $map = cf::map::new	1953	$self->_load_header ($f)
1304	or return;	1954	or return;
1305		1955
1306	# for better error messages only, will be overwritten later	1956	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1957	$f->resolve_delayed_derefs;
1308		1958
1309	$map->load_header ($path)	1959	$self->{load_path} = $path;
		1960
		1961	1
		1962	}
		1963
		1964	sub load_header_orig {
		1965	my ($self) = @_;
		1966
		1967	$self->load_header_from ($self->load_path)
		1968	}
		1969
		1970	sub load_header_temp {
		1971	my ($self) = @_;
		1972
		1973	$self->load_header_from ($self->save_path)
		1974	}
		1975
		1976	sub prepare_temp {
		1977	my ($self) = @_;
		1978
		1979	$self->last_access ((delete $self->{last_access})
		1980	|| $cf::RUNTIME); #d#
		1981	# safety
		1982	$self->{instantiate_time} = $cf::RUNTIME
		1983	if $self->{instantiate_time} > $cf::RUNTIME;
		1984	}
		1985
		1986	sub prepare_orig {
		1987	my ($self) = @_;
		1988
		1989	$self->{load_original} = 1;
		1990	$self->{instantiate_time} = $cf::RUNTIME;
		1991	$self->last_access ($cf::RUNTIME);
		1992	$self->instantiate;
		1993	}
		1994
		1995	sub load_header {
		1996	my ($self) = @_;
		1997
		1998	if ($self->load_header_temp) {
		1999	$self->prepare_temp;
		2000	} else {
		2001	$self->load_header_orig
1310	or return;	2002	or return;
		2003	$self->prepare_orig;
		2004	}
1311		2005
1312	$map->{load_path} = $path;	2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
1313		2008
1314	$map	2009	$self->default_region (cf::region::find_by_path $self->{path})
		2010	unless $self->default_region;
		2011
		2012	1
1315	}	2013	}
1316		2014
1317	sub find;	2015	sub find;
1318	sub find {	2016	sub find {
1319	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1320		2018
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		2020
1326	cf::lock_wait "map_find:$key";	2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1327
1328	$cf::MAP{$key} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1330		2023
1331	# do it the slow way	2024	$cf::MAP{$path} || do {
1332	my $map = $path->load_temp;	2025	my $map = new_from_path cf::map $path
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2026	or return;
1345		2027
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1358		2029
1359	Coro::cede;	2030	$map->load_header
		2031	or return;
1360		2032
1361	if ($map->should_reset) {	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2034	# doing this can freeze the server in a sync job, obviously
		2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1362	$map->reset;	2038	$map->reset;
1363	undef $guard;
1364	$map = find $path	2039	return find $path;
1365	or return;
1366	}	2040	}
1367		2041
1368	$cf::MAP{$key} = $map	2042	$cf::MAP{$path} = $map
1369	}	2043	}
1370	}	2044	}
		2045
		2046	sub pre_load { }
		2047	#sub post_load { } # XS
1371		2048
1372	sub load {	2049	sub load {
1373	my ($self) = @_;	2050	my ($self) = @_;
1374		2051
		2052	local $self->{deny_reset} = 1; # loading can take a long time
		2053
1375	my $path = $self->{path};	2054	my $path = $self->{path};
		2055
		2056	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2057	my $guard = cf::lock_acquire "map_data:$path";
1377		2058
		2059	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		2061
1380	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1381		2063
1382	$self->alloc;	2064	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2065
		2066	$self->pre_load;
		2067	cf::cede_to_tick;
		2068
		2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
		2071	$self->_load_objects ($f)
1384	or return;	2072	or return;
1385		2073
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1387	if delete $self->{load_original};	2075	if delete $self->{load_original};
1388		2076
1389	if (my $uniq = $path->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2078	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2081	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1394	}	2085	}
1395	}	2086	}
1396		2087
1397	Coro::cede;	2088	$f->resolve_delayed_derefs;
1398		2089
		2090	cf::cede_to_tick;
1399	# now do the right thing for maps	2091	# now do the right thing for maps
1400	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2094	unless $self->difficulty;
		2095	cf::cede_to_tick;
		2096
		2097	unless ($self->{deny_activate}) {
		2098	$self->decay_objects;
		2099	$self->fix_auto_apply;
		2100	$self->update_buttons;
		2101	cf::cede_to_tick;
1412	$self->activate;	2102	$self->activate;
1413	}	2103	}
1414		2104
1415	Coro::cede;	2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
1416		2107
1417	$self->in_memory (cf::MAP_IN_MEMORY);	2108	$self->in_memory (cf::MAP_ACTIVE);
		2109	}
		2110
		2111	$self->post_load;
		2112	}
		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
		2117	sub customise_for {
		2118	my ($self, $ob) = @_;
		2119
		2120	return find "~" . $ob->name . "/" . $self->{path}
		2121	if $self->per_player;
		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
		2126	$self
1418	}	2127	}
1419		2128
1420	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	2130	sub load_neighbours {
1422	my ($map) = @_;	2131	my ($map) = @_;
1423		2132
1424	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1425		2134
1426	for (0 .. 3) {	2135	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1428	or next;	2137	or next;
1429	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1430	or next;	2139	or next;
1431	$neigh->load;	2140	$neigh->load;
1432		2141
		2142	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2145	}
1436		2146
1437	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1439	or next;	2150	or next;
1440	$neigh->load;	2151	$neigh->load;
1441	}	2152	}
1442	}	2153	}
1443		2154
…		…
1448	}	2159	}
1449		2160
1450	sub do_load_sync {	2161	sub do_load_sync {
1451	my ($map) = @_;	2162	my ($map) = @_;
1452		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1453	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1454	}	2168	}
1455		2169
1456	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
		2171	our $MAP_PREFETCHER = undef;
		2172
		2173	sub find_async {
		2174	my ($path, $origin, $load) = @_;
		2175
		2176	$path = normalise $path, $origin && $origin->{path};
		2177
		2178	if (my $map = $cf::MAP{$path}) {
		2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2180	}
		2181
		2182	$MAP_PREFETCH{$path} |= $load;
		2183
1457	our $MAP_PREFETCHER = Coro::async {	2184	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2185	$Coro::current->{desc} = "map prefetcher";
		2186
1459	while (%MAP_PREFETCH) {	2187	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2188	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2189	if (my $map = find $k) {
		2190	$map->load if $v;
		2191	}
		2192
1462	my $path = delete $MAP_PREFETCH{$key};	2193	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2194	}
1468	Coro::schedule;	2195	}
		2196	undef $MAP_PREFETCHER;
1469	}	2197	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2198	$MAP_PREFETCHER->prio (6);
1484		2199
1485	()	2200	()
1486	}	2201	}
1487		2202
1488	sub save {	2203	sub save {
1489	my ($self) = @_;	2204	my ($self) = @_;
1490		2205
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2207
1493	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1494		2209
1495	return unless $self->dirty;	2210	return unless $self->dirty;
1496		2211
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2212	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2213	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2214
1500	$self->{load_path} = $save;	2215	$self->{load_path} = $save;
1501		2216
1502	return if $self->{deny_save};	2217	return if $self->{deny_save};
1503		2218
1504	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1505		2220
1506	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1507	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1508	};	2224	};
1509		2225
		2226	cf::get_slot 0.02;
		2227
1510	if ($uniq) {	2228	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2231	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2233	}
1516	}	2234	}
1517		2235
1518	sub swap_out {	2236	sub swap_out {
1519	my ($self) = @_;	2237	my ($self) = @_;
1520		2238
1521	# save first because save cedes	2239	# save first because save cedes
1522	$self->save;	2240	$self->save;
1523		2241
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2243
1526	return if $self->players;	2244	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1528	return if $self->{deny_save};	2246	return if $self->{deny_save};
1529		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2252	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2253	}
1533		2254
1534	sub reset_at {	2255	sub reset_at {
1535	my ($self) = @_;	2256	my ($self) = @_;
1536		2257
1537	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1540		2260
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2263
…		…
1548	my ($self) = @_;	2268	my ($self) = @_;
1549		2269
1550	$self->reset_at <= $cf::RUNTIME	2270	$self->reset_at <= $cf::RUNTIME
1551	}	2271	}
1552		2272
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2273	sub reset {
1575	my ($self) = @_;	2274	my ($self) = @_;
1576		2275
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2277
1579	return if $self->players;	2278	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2279
1582	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
		2281
		2282	$self->in_memory (cf::MAP_SWAPPED);
		2283
		2284	# need to save uniques path
		2285	unless ($self->{deny_save}) {
		2286	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2287
		2288	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2289	if $uniq;
		2290	}
1583		2291
1584	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1585		2293
		2294	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2295	$_->clear_links_to ($self) for values %cf::MAP;
		2296	$self->clear;
1587		2297
1588	$self->unlink_save;	2298	$self->unlink_save;
1589	$self->destroy;	2299	$self->destroy;
1590	}	2300	}
1591		2301
1592	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1593		2303
1594	sub nuke {	2304	sub nuke {
1595	my ($self) = @_;	2305	my ($self) = @_;
1596		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
		2310	delete $cf::MAP{$self->path};
		2311
		2312	$self->unlink_save;
		2313
		2314	bless $self, "cf::map";
		2315	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2319
		2320	$cf::MAP{$self->path} = $self;
		2321	}
		2322
1600	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
1601	}	2324	}
1602		2325
1603	sub customise_for {	2326	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2327
1606	if ($map->per_player) {	2328	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
1608	}	2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
1609		2343
1610	$map	2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1611	}	2360	}
1612		2361
1613	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1614		2363
1615	Returns an arrayref of cf::path's of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2365	instantiated unique items. May block.
1617		2366
1618	=cut	2367	=cut
1619		2368
1620	sub unique_maps() {	2369	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2370	[
1622	or return;	2371	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2372	utf8::decode $_;
1628	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2375	? ()
1631	push @paths, new cf::path $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2378	]
1633
1634	\@paths
1635	}	2379	}
1636		2380
1637	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1638		2412
1639	=back	2413	=back
1640		2414
1641	=head3 cf::object	2415	=head3 cf::object
1642		2416
…		…
1646		2420
1647	=over 4	2421	=over 4
1648		2422
1649	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1650		2424
1651	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1652		2427
1653	=cut	2428	=cut
1654		2429
1655	sub inv_recursive_;	2430	sub inv_recursive_;
1656	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1659		2434
1660	sub inv_recursive {	2435	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1662	}	2437	}
1663		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1664	package cf;	2467	package cf;
1665		2468
1666	=back	2469	=back
1667		2470
1668	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1677		2480
1678	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1679		2496
1680	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2498	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1685		2502
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2504
1688	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1690	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1693	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1694	}	2530	}
1695		2531
1696	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1697		2533
1698	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1711		2547
1712	=item $player_object->enter_link	2548	=item $player_object->enter_link
1713		2549
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2551
1716	The player should be reaosnably safe there for short amounts of time. You	2552	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
		2556
		2557	Will never block.
1718		2558
1719	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1720		2560
1721	Moves the player out of the specila link map onto the given map. If the	2561	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2562	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2563	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2564	fails, to the emergency map position.
1725		2565
1726	Might block.	2566	Might block.
1727		2567
1728	=cut	2568	=cut
		2569
		2570	sub link_map {
		2571	unless ($LINK_MAP) {
		2572	$LINK_MAP = cf::map::find "{link}"
		2573	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2574	$LINK_MAP->load;
		2575	}
		2576
		2577	$LINK_MAP
		2578	}
1729		2579
1730	sub cf::object::player::enter_link {	2580	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2581	my ($self) = @_;
1732		2582
1733	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
1734		2584
1735	return if $self->map == $LINK_MAP;	2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2586
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2588	if $self->map && $self->map->{path} ne "{link}";
1739		2589
1740	$self->enter_map ($LINK_MAP, 20, 20);	2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2591	}
1742		2592
1743	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
		2595
		2596	return unless $self->contr->active;
1745		2597
1746	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1747		2599
1748	unless ($map) {	2600	unless ($map) {
1749	# restore original map position	2601	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1762		2614
1763	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1766		2618
1767	$map->load;	2619	$map->load;
1768	$map->load_diag;	2620	$map->load_neighbours;
1769		2621
1770	return unless $self->contr->active;	2622	return unless $self->contr->active;
		2623
		2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2625	$self->enter_map ($map, $x, $y);
		2626
		2627	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2628	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}	2629	}
1774		2630
1775	cf::player->attach (	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2632
1779	# abort map switching before logout	2633	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2634	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2635	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2636	the new (success) or old (failed) map position. In either case, $done will
1783	};	2637	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2638
1789	# try to abort aborted map switching on player login :)	2639	Note that $check will be called with a potentially non-loaded map, so if
1790	# should happen only on crashes	2640	it needs a loaded map it has to call C<< ->load >>.
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2641
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2642	=cut
		2643
		2644	our $GOTOGEN;
1810		2645
1811	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2648
1814	$path = new cf::path $path;	2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2651
1816	$self->enter_link;	2652	$self->enter_link;
1817		2653
1818	(async {	2654	(async {
1819	my $map = cf::map::find $path->as_string;	2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
		2676	my $map = eval {
		2677	my $map = defined $path ? cf::map::find $path : undef;
		2678
		2679	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
1821		2681	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2682	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
1826		2685
		2686	$map
		2687	};
		2688
		2689	if ($@) {
		2690	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2691	LOG llevError | logBacktrace, Carp::longmess $@;
		2692	}
		2693
		2694	if ($gen == $self->{_goto_generation}) {
		2695	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1828	})->prio (1);	2700	})->prio (1);
1829	}	2701	}
1830		2702
1831	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1832		2704
…		…
1834		2706
1835	sub parse_random_map_params {	2707	sub parse_random_map_params {
1836	my ($spec) = @_;	2708	my ($spec) = @_;
1837		2709
1838	my $rmp = { # defaults	2710	my $rmp = { # defaults
1839	xsize => 10,	2711	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2712	ysize => (cf::rndm 15, 40),
		2713	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2714	#layout => string,
1841	};	2715	};
1842		2716
1843	for (split /\n/, $spec) {	2717	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2718	my ($k, $v) = split /\s+/, $_, 2;
1845		2719
…		…
1857	# that depends on the exit object	2731	# that depends on the exit object
1858		2732
1859	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
1860		2734
1861	if ($exit->map) {	2735	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2736	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1866	}	2742	}
1867		2743
1868	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1869		2745
1870	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
		2748	my $meta = "$RANDOMDIR/$md5.meta";
1872		2749
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
		2752	undef $fh;
		2753	aio_rename "$meta~", $meta;
1875		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1878	}	2761	}
1879	}	2762	}
1880		2763
1881	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1885		2768
1886	$self->enter_link;	2769	$self->enter_link;
1887		2770
1888	(async {	2771	(async {
1889	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
1890	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
1891	prepare_random_map $exit	2781	prepare_random_map $exit
1892	if $exit->slaying eq "/!";	2782	if $exit->slaying eq "/!";
		2783	}
1893		2784
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
1896		2788
		2789	$self->goto ($map, $x, $y);
		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
1897	1;	2795	1
1898	}) {	2796	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2801
1904	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2803	$self->leave_link;
1906	}	2804	}
1907	})->prio (1);	2805	})->prio (1);
…		…
1920		2818
1921	sub cf::client::send_drawinfo {	2819	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2820	my ($self, $text, $flags) = @_;
1923		2821
1924	utf8::encode $text;	2822	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2824	}
1927		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
		3013	=item $client->ext_msg ($type, @msg)
		3014
		3015	Sends an ext event to the client.
		3016
		3017	=cut
		3018
		3019	sub cf::client::ext_msg($$@) {
		3020	my ($self, $type, @msg) = @_;
		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
		3025	push @msg, msgtype => "event_$type";
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
		3046	}
1928		3047
1929	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
1930		3049
1931	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		3053
1935	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	3055	become reliable at some point in the future.
1937		3056
1938	=cut	3057	=cut
1939		3058
1940	sub cf::client::query {	3059	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	3068	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		3070
1952	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
1954	}	3075	}
1955		3076
1956	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
1957	on_reply => sub {	3083	on_reply => sub {
1958	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
1959		3085
1960	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
1961	# get handled first	3087	# get handled first
1962	my $queue = delete $ns->{query_queue}	3088	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	3089	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		3090
1965	(shift @$queue)->[1]->($msg);	3091	(shift @$queue)->[1]->($msg);
		3092	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3093
1967	push @{ $ns->{query_queue} }, @$queue;	3094	push @{ $ns->{query_queue} }, @$queue;
1968		3095
1969	if (@{ $ns->{query_queue} } == @$queue) {	3096	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3097	if (@$queue) {
…		…
1972	} else {	3099	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3101	}
1975	}	3102	}
1976	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
1977	);	3130	);
1978		3131
1979	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
1980		3133
1981	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
1997		3150
1998	$coro	3151	$coro
1999	}	3152	}
2000		3153
2001	cf::client->attach (	3154	cf::client->attach (
2002	on_destroy => sub {	3155	on_client_destroy => sub {
2003	my ($ns) = @_;	3156	my ($ns) = @_;
2004		3157
2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2006	},	3159	},
2007	);	3160	);
…		…
2022	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
2024		3177
2025	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
2026		3179
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2028		3185
2029	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2030		3187
2031	=pod	3188	=pod
2032		3189
2033	The following fucntions and emthods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2034		3191
2035	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2036	cf::object::player player	3197	cf::object::player
2037	cf::player peaceful	3198	player
2038	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2039		3205
2040	=cut	3206	=cut
2041		3207
2042	for (	3208	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2044	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2046	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2047	) {	3215	) {
2048	no strict 'refs';	3216	no strict 'refs';
2049	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2068		3236
2069	my $qcode = $code;	3237	my $qcode = $code;
2070	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2071	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2072		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2073	local $_;	3244	local $_;
2074	local @safe::cf::_safe_eval_args = values %vars;
2075		3245
2076	my $eval =	3246	my $eval =
2077	"do {\n"	3247	"do {\n"
2078	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2079	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2080	. $code	3250	. $code
2081	. "\n}"	3251	. "\n}"
2082	;	3252	;
2083		3253
		3254	if ($CFG{safe_eval}) {
2084	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2085	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2086	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2087		3263
2088	if ($@) {	3264	if ($@) {
2089	warn "$@";	3265	warn "$@";
2090	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2091	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2110	=cut	3286	=cut
2111		3287
2112	sub register_script_function {	3288	sub register_script_function {
2113	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2114		3290
2115	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2116	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2117	}	3293	}
2118		3294
2119	=back	3295	=back
2120		3296
2121	=cut	3297	=cut
2122		3298
2123	#############################################################################	3299	#############################################################################
		3300	# the server's init and main functions
2124		3301
2125	=head2 EXTENSION DATABASE SUPPORT	3302	sub load_facedata($) {
		3303	my ($path) = @_;
2126		3304
2127	Crossfire maintains a very simple database for extension use. It can	3305	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3306	# for this (global event?)
2129	excludes objects.	3307	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3308
2131	The parameter C<$family> should best start with the name of the extension	3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3310
2134	=over 4	3311	warn "loading facedata from $path\n";
2135		3312
2136	=item $hashref = cf::db_get $family	3313	my $facedata;
		3314	0 < aio_load $path, $facedata
		3315	or die "$path: $!";
2137		3316
2138	Return a hashref for use by the extension C<$family>, which can be	3317	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3318
2142	=item $value = cf::db_get $family => $key	3319	$facedata->{version} == 2
		3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3321
2144	Returns a single value from the database	3322	# patch in the exptable
2145		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2146	=item cf::db_put $family => $hashref	3324	$facedata->{resource}{"res/exp_table"} = {
2147		3325	type => FT_RSRC,
2148	Stores the given family hashref into the database. Updates are delayed, if	3326	data => $exp_table,
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3327	hash => (Digest::MD5::md5 $exp_table),
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3328	};
		3329	cf::cede_to_tick;
2197		3330
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3331	{
		3332	my $faces = $facedata->{faceinfo};
2202		3333
2203	sub db_get($;$) {	3334	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3336
2209	sub db_put($$;$) {	3337	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3338	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2212	} else {	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		3341
2218	cf::global->attach (	3342	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3343	}
2223	);
2224	}
2225		3344
2226	#############################################################################	3345	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3346	next unless $info->{smooth};
2228		3347
2229	sub cfg_load {	3348	my $idx = cf::face::find $face
		3349	or next;
		3350
		3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
		3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3354	} else {
		3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	{
		3363	my $anims = $facedata->{animinfo};
		3364
		3365	while (my ($anim, $info) = each %$anims) {
		3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3367	cf::cede_to_tick;
		3368	}
		3369
		3370	cf::anim::invalidate_all; # d'oh
		3371	}
		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3391
		3392	1
		3393	}
		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
		3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
		3438	load_resource_file "$MAPDIR/regions"
		3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
		3445	}
		3446
		3447	sub reload_facedata {
		3448	load_facedata "$DATADIR/facedata"
		3449	or die "unable to load facedata\n";
		3450	}
		3451
		3452	sub reload_archetypes {
		3453	load_resource_file "$DATADIR/archetypes"
		3454	or die "unable to load archetypes\n";
		3455	}
		3456
		3457	sub reload_treasures {
		3458	load_resource_file "$DATADIR/treasures"
		3459	or die "unable to load treasurelists\n";
		3460	}
		3461
		3462	sub reload_resources {
		3463	warn "reloading resource files...\n";
		3464
		3465	reload_facedata;
		3466	reload_archetypes;
		3467	reload_regions;
		3468	reload_treasures;
		3469
		3470	warn "finished reloading resource files\n";
		3471	}
		3472
		3473	sub reload_config {
		3474	warn "reloading config file...\n";
		3475
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3477	or return;
2232		3478
2233	local $/;	3479	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2235		3481
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2237		3483
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2243	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2244	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2245	};	3491	};
2246	warn $@ if $@;	3492	warn $@ if $@;
2247	}	3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2248	}	3524	}
2249		3525
2250	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2251	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3544	(async {
		3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
		3547	})->prio (Coro::PRIO_MAX);
2255	};	3548	};
2256		3549
2257	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
2258	db_load;	3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
		3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2259	load_extensions;	3568	load_extensions;
2260	Event::loop;	3569
		3570	utime time, time, $RUNTIMEFILE;
		3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2261	}	3580	}
2262		3581
2263	#############################################################################	3582	#############################################################################
2264	# initialisation and cleanup	3583	# initialisation and cleanup
2265		3584
2266	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2267	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2274	},
2275	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = EV::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3629
2276	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2277	}	3681	}
2278		3682
2279	sub emergency_save() {	3683	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2281		3685
2282	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2283		3687
2284	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2285	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3702	$pl->save;
2293	}	3703	}
2294	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2295		3705
2296	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2297	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3709	$map->valid or next;
2300	$map->save;	3710	$map->save;
2301	}	3711	}
2302	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
		3713
		3714	warn "emergency_perl_save: begin database checkpoint\n";
		3715	BDB::db_env_txn_checkpoint $DB_ENV;
		3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2303	};	3721	};
2304		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2305	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2306	}	3729	}
2307		3730
		3731	sub post_cleanup {
		3732	my ($make_core) = @_;
		3733
		3734	warn Carp::longmess "post_cleanup backtrace"
		3735	if $make_core;
		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
		3765	}
		3766
2308	sub reload() {	3767	sub do_reload_perl() {
2309	# can/must only be called in main	3768	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3770	warn "can only reload from main coroutine";
2312	return;	3771	return;
2313	}	3772	}
2314		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
2315	warn "reloading...";	3779	warn "reloading...";
2316		3780
2317	warn "freezing server";	3781	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3782
		3783	cf::sync_job {
		3784	cf::write_runtime_sync; # external watchdog should not bark
2319	cf::emergency_save;	3785	cf::emergency_save;
		3786	cf::write_runtime_sync; # external watchdog should not bark
2320		3787
2321	warn "sync database to disk";	3788	warn "syncing database to disk";
2322	cf::db_sync;	3789	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3790
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2327		3792
2328	warn "cancel all watchers";	3793	warn "flushing outstanding aio requests";
2329	for (Event::all_watchers) {	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();
2336
2337	warn "remove commands";
2338	%COMMAND = ();
2339
2340	warn "remove ext commands";
2341	%EXTCMD = ();
2342
2343	warn "unload/nuke all extensions";
2344	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";
2346
2347	if (my $cb = $pkg->can ("unload")) {
2348	eval {
2349	$cb->($pkg);
2350	1
2351	} or warn "$pkg unloaded, but with errors: $@";
2352	}	3796	}
2353		3797
		3798	warn "cancelling all extension coros";
		3799	$_->cancel for values %EXT_CORO;
		3800	%EXT_CORO = ();
		3801
		3802	warn "removing commands";
		3803	%COMMAND = ();
		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2354	warn "... nuking $pkg";	3811	warn "... unloading $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357		3812
2358	warn "unload all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361
2362	warn "removing <$k>";
2363	delete $INC{$k};
2364
2365	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;
2367
2368	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2369	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2370	}	3822	}
2371		3823
2372	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2373	}	3839	}
2374		3840
2375	warn "get rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3844
2379	warn "unload cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2381		3848
2382	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3850	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2385		3852
		3853	warn "unload completed, starting to reload now";
		3854
2386	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2387	require cf;	3856	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2389		3858
2390	warn "load config and database again";	3859	warn "loading config and database again";
2391	cf::cfg_load;	3860	cf::reload_config;
2392	cf::db_load;
2393		3861
2394	warn "load extensions";	3862	warn "loading extensions";
2395	cf::load_extensions;	3863	cf::load_extensions;
2396		3864
		3865	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3867	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3868	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
		3870	warn "reattaching attachments to players";
		3871	reattach $_ for values %PLAYER;
		3872	}
		3873
		3874	warn "running post_init jobs";
		3875	(pop @POST_INIT)->(1) while @POST_INIT;
		3876
		3877	warn "leaving sync_job";
		3878
		3879	1
		3880	} or do {
		3881	warn $@;
		3882	cf::cleanup "error while reloading, exiting.";
		3883	};
		3884
		3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = EV::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
		3891	};
		3892
		3893	our $RELOAD_WATCHER; # used only during reload
		3894
		3895	sub reload_perl() {
		3896	# doing reload synchronously and two reloads happen back-to-back,
		3897	# coro crashes during coro_state_free->destroy here.
		3898
		3899	$RELOAD_WATCHER ||= cf::async {
		3900	Coro::AIO::aio_wait cache_extensions;
		3901
		3902	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3903	do_reload_perl;
		3904	undef $RELOAD_WATCHER;
		3905	};
2401	};	3906	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3907	}
2454		3908
2455	register_command "reload" => sub {	3909	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2457		3911
2458	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3913	$who->message ("reloading server.");
		3914	async {
		3915	$Coro::current->{desc} = "perl_reload";
		3916	reload_perl;
		3917	};
2462	}	3918	}
2463	};	3919	};
2464		3920
2465	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2466		3922
2467	$TICK_WATCHER = Event->timer (	3923	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		3924
		3925	our @WAIT_FOR_TICK;
		3926	our @WAIT_FOR_TICK_BEGIN;
		3927
		3928	sub wait_for_tick {
		3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3930
		3931	my $signal = new Coro::Signal;
		3932	push @WAIT_FOR_TICK, $signal;
		3933	$signal->wait;
		3934	}
		3935
		3936	sub wait_for_tick_begin {
		3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3938
		3939	my $signal = new Coro::Signal;
		3940	push @WAIT_FOR_TICK_BEGIN, $signal;
		3941	$signal->wait;
		3942	}
		3943
		3944	sub tick {
		3945	if ($Coro::current != $Coro::main) {
		3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3947	unless ++$bug_warning > 10;
		3948	return;
		3949	}
		3950
2475	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2476	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;
2478		3952
2479	$WAIT_FOR_TICK->broadcast;	3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2481		3954
2482	# if we are delayed by four ticks or more, skip them all	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2484		3957	Coro::async_pool {
2485	$TICK_WATCHER->at ($NEXT_TICK);	3958	$Coro::current->{desc} = "runtime saver";
2486	$TICK_WATCHER->start;
2487	},
2488	);
2489
2490	IO::AIO::max_poll_time $TICK * 0.2;
2491
2492	Event->io (
2493	fd => IO::AIO::poll_fileno,
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,
2502	after => 0,
2503	interval => 10,
2504	cb => sub {
2505	(Coro::unblock_sub {
2506	write_runtime	3959	write_runtime_sync
2507	or warn "ERROR: unable to write runtime file: $!";	3960	or warn "ERROR: unable to write runtime file: $!";
2508	})->();	3961	};
2509	},	3962	}
2510	);	3963
		3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3965	$sig->send;
		3966	}
		3967	while (my $sig = shift @WAIT_FOR_TICK) {
		3968	$sig->send;
		3969	}
		3970
		3971	$LOAD = ($NOW - $TICK_START) / $TICK;
		3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3973
		3974	if (0) {
		3975	if ($NEXT_TICK) {
		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
		3980	}
		3981	}
		3982
		3983	{
		3984	# configure BDB
		3985
		3986	BDB::min_parallel 16;
		3987	BDB::max_poll_reqs $TICK * 0.1;
		3988	$AnyEvent::BDB::WATCHER->priority (1);
		3989
		3990	unless ($DB_ENV) {
		3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3997
		3998	cf::sync_job {
		3999	eval {
		4000	BDB::db_env_open
		4001	$DB_ENV,
		4002	$BDBDIR,
		4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4005	0666;
		4006
		4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4008	};
		4009
		4010	cf::cleanup "db_env_open(db): $@" if $@;
		4011	};
		4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
		4023	}
		4024
		4025	{
		4026	# configure IO::AIO
		4027
		4028	IO::AIO::min_parallel 8;
		4029	IO::AIO::max_poll_time $TICK * 0.1;
		4030	undef $AnyEvent::AIO::WATCHER;
		4031	}
		4032
		4033	my $_log_backtrace;
		4034
		4035	sub _log_backtrace {
		4036	my ($msg, @addr) = @_;
		4037
		4038	$msg =~ s/\n//;
		4039
		4040	# limit the # of concurrent backtraces
		4041	if ($_log_backtrace < 2) {
		4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
		4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
		4047	my @bt = fork_call {
		4048	@addr = map { sprintf "%x", $_ } @addr;
		4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4051	or die "addr2line: $!";
		4052
		4053	my @funcs;
		4054	my @res = <$fh>;
		4055	chomp for @res;
		4056	while (@res) {
		4057	my ($func, $line) = splice @res, 0, 2, ();
		4058	push @funcs, "[$func] $line";
		4059	}
		4060
		4061	@funcs
		4062	};
		4063
		4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4066	LOG llevInfo, "[ABT] $_\n" for @bt;
		4067	--$_log_backtrace;
		4068	};
		4069	} else {
		4070	LOG llevInfo, "[ABT] $msg\n";
		4071	LOG llevInfo, "[ABT] [suppressed]\n";
		4072	}
		4073	}
		4074
		4075	# load additional modules
		4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
2511		4078
2512	END { cf::emergency_save }	4079	END { cf::emergency_save }
2513		4080
2514	1	4081	1
2515		4082

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