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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.145 by root, Sun Jan 7 21:54:59 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
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	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" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	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
44	our $NEXT_TICK;	115	our $NEXT_TICK;
45	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);
46		124
47	our %CFG;	125	our %CFG;
48		126
49	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
51		130
52	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	133	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	134
56	our %EXT_CORO; # coroutines bound to extensions	135	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $REALLY_UNLOOP; # never set to true, please :)
57		147
58	binmode STDOUT;	148	binmode STDOUT;
59	binmode STDERR;	149	binmode STDERR;
60		150
61	# read virtual server time, if available	151	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
66	}	156	}
67		157
68	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		159
74	# a special map that is always available	160	mkdir $_
75	our $LINK_MAP;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
76	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::"} };
77		177
78	#############################################################################	178	#############################################################################
79		179
80	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
81		181
…		…
88	=item $cf::RUNTIME	188	=item $cf::RUNTIME
89		189
90	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
91	every server tick.	191	every server tick.
92		192
93	=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
94		196
95	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		201
98	=item $cf::NOW	202	=item $cf::NOW
99		203
100	The time of the last (current) server tick.	204	The time of the last (current) server tick.
101		205
102	=item $cf::TICK	206	=item $cf::TICK
103		207
104	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
105		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
106	=item %cf::CFG	220	=item %cf::CFG
107		221
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	223	from wherever your confdir points to.
110		224
		225	=item cf::wait_for_tick, cf::wait_for_tick_begin
		226
		227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		228	returns directly I<after> the tick processing (and consequently, can only wake one process
		229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
111	=back	243	=back
112		244
113	=cut	245	=cut
114		246
115	BEGIN {	247	$Coro::State::WARNHOOK = sub {
116	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	248	my $msg = join "", @_;
118	utf8::encode $msg;
119		249
120	$msg .= "\n"	250	$msg .= "\n"
121	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
122		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
123	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
124	};	256	};
125	}	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	};
126		271
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		279
134	# 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
135	# within the Safe compartment.	281	# within the Safe compartment.
136	for my $pkg (qw(	282	for my $pkg (qw(
137	cf::global cf::attachable	283	cf::global cf::attachable
138	cf::object cf::object::player	284	cf::object cf::object::player
139	cf::client cf::player	285	cf::client cf::player
140	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
141	cf::map cf::party cf::region	288	cf::party cf::region
142	)) {	289	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	291	}
146		292
147	$Event::DIED = sub {	293	$EV::DIED = sub {
148	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
149	};	295	};
150		296
151	my %ext_pkg;	297	#############################################################################
152	my @exts;
153	my @hook;
154		298
155	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
156		300
157	=over 4	301	=over 4
158		302
159	=cut	303	=item dumpval $ref
160		304
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
162		306
		307	sub dumpval {
		308	eval {
		309	local $SIG{__DIE__};
		310	my $d;
		311	if (1) {
		312	$d = new Data::Dumper([$_[0]], ["*var"]);
		313	$d->Terse(1);
		314	$d->Indent(2);
		315	$d->Quotekeys(0);
		316	$d->Useqq(1);
		317	#$d->Bless(...);
		318	$d->Seen($_[1]) if @_ > 1;
		319	$d = $d->Dump();
		320	}
		321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		322	$d
		323	} || "[unable to dump $_[0]: '$@']";
		324	}
		325
163	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
164		327
165	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
166		329
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
175		331
176	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
177		333
178	=cut	334	=cut
179		335
180	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
182	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;
183	}	353	}
184		354
185	=item cf::lock_wait $string	355	=item cf::lock_wait $string
186		356
187	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
188		358
189	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
190		360
191	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
192	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,
193	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
194	returned.	364	returned.
195		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
196	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
197	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
198		371
199	=cut	372	=item $locked = cf::lock_active $string
200		373
201	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
202		379
203	sub lock_wait($) {	380	sub lock_wait($) {
204	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	382	}
212		383
213	sub lock_acquire($) {	384	sub lock_acquire($) {
214	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
215		387
216	# wait, to be sure we are not locked	388	sub lock_active($) {
217	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	390	}
226		391
227	sub freeze_mainloop {	392	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
229		394
230	my $guard = Coro::guard { $TICK_WATCHER->start };	395	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	396	}
232	$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	$sig->wait;
233	}	478	}
234		479
235	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
236		481
237	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		487
243	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
244		489
245	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
246		491
247	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
250		496
251	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
254	fast or be very important.	500	fast or be very important.
…		…
257		503
258	sub sync_job(&) {	504	sub sync_job(&) {
259	my ($job) = @_;	505	my ($job) = @_;
260		506
261	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
262	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
264		512
265	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	514
267	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
268		516
269	my $busy = 1;	517	my $busy = 1;
270	my @res;	518	my @res;
271		519
272	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	522	@res = eval { $job->() };
274	warn $@ if $@;	523	warn $@ if $@;
275	undef $busy;	524	undef $busy;
276	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
277		526
278	while ($busy) {	527	while ($busy) {
279	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
280	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
281		538
282	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
283	} else {	540	} else {
284	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
285		542
…		…
287	}	544	}
288	}	545	}
289		546
290	=item $coro = cf::async_ext { BLOCK }	547	=item $coro = cf::async_ext { BLOCK }
291		548
292	Like async, but this coro is automcatially being canceled when the	549	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	550	extension calling this is being unloaded.
294		551
295	=cut	552	=cut
296		553
297	sub async_ext(&) {	554	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
306		563
307	$coro	564	$coro
308	}	565	}
309		566
310	sub write_runtime {	567	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		568
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	569	Executes the given code block with the given arguments in a seperate
314	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.
315		573
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	574	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		575
320	aio_fsync $fh	576	sub fork_call(&@) {
321	and return;	577	my ($cb, @args) = @_;
322		578
323	close $fh	579	# we seemingly have to make a local copy of the whole thing,
324	or return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
325		582
326	aio_rename "$runtime~", $runtime	583	my @res = Coro::Util::fork_eval {
327	and return;	584	reset_signals;
		585	&$cb
		586	}, @args;
328		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($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
329	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		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 => $type });
330	}	754	}
331		755
332	=back	756	=back
333		757
334	=cut	758	=cut
335		759
336	#############################################################################	760	#############################################################################
337		761
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
459		763
460	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
461	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")
462	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
463		767
464	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>
465	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
466	crossfire+).	770	Deliantra).
467		771
468	=over 4	772	=over 4
469		773
470	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
471		775
…		…
515	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
516		820
517	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
519		823
520	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
521	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.
522		826
523	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
524		828
525	=over 4	829	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	889	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	890	our @CB_MAP = ();
587		891
588	my %attachment;	892	my %attachment;
589		893
		894	sub cf::attachable::thawer_merge {
		895	# simply override everything except _meta
		896	local $_[0]{_meta};
		897	%{$_[0]} = %{$_[1]};
		898	}
		899
590	sub _attach_cb($$$$) {	900	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	901	my ($registry, $event, $prio, $cb) = @_;
592		902
593	use sort 'stable';	903	use sort 'stable';
594		904
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
629		939
630	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		944
635	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	946	my $pkg = shift @arg;
637		947
638	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
668	}	978	}
669		979
670	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
671	} else {	981	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	983	}
674		984
675	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
676	}	986	}
677		987
…		…
679	if (ref $_[0]) {	989	if (ref $_[0]) {
680	_object_attach @_;	990	_object_attach @_;
681	} else {	991	} else {
682	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
683	}	993	}
		994	_recalc_want;
684	};	995	};
685		996
686	# all those should be optimised	997	# all those should be optimised
687	sub cf::attachable::detach {	998	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1003	reattach ($obj);
693	} else {	1004	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
695	}	1006	}
		1007	_recalc_want;
696	};	1008	};
697		1009
698	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
700		1012
…		…
715	";	1027	";
716	die if $@;	1028	die if $@;
717	}	1029	}
718		1030
719	our $override;	1031	our $override;
720	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?
721		1033
722	sub override {	1034	sub override {
723	$override = 1;	1035	$override = 1;
724	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
725	}	1037	}
726		1038
727	sub do_invoke {	1039	sub do_invoke {
728	my $event = shift;	1040	my $event = shift;
729	my $callbacks = shift;	1041	my $callbacks = shift;
730		1042
731	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
732		1044
733	local $override;	1045	local $override;
734		1046
735	for (@$callbacks) {	1047	for (@$callbacks) {
736	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
745	}	1057	}
746		1058
747	0	1059	0
748	}	1060	}
749		1061
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1063
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1065
754	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
755		1067
756	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
757	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
758	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1071
760	=back	1072	=back
761		1073
762	=cut	1074	=cut
763		1075
764	#############################################################################	1076	#############################################################################
765	# 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	}
766		1120
767	sub reattach {	1121	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
769	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
770		1127
771	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
772		1129
773	@$registry = ();	1130	@$registry = ();
774		1131
…		…
789	cf::attachable->attach (	1146	cf::attachable->attach (
790	prio => -1000000,	1147	prio => -1000000,
791	on_instantiate => sub {	1148	on_instantiate => sub {
792	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
793		1150
794	$data = from_json $data;	1151	$data = decode_json $data;
795		1152
796	for (@$data) {	1153	for (@$data) {
797	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
798		1155
799	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1172	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
817		1174
818	sync_job {	1175	sync_job {
819	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
822		1180
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$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;
826	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
827	close $fh;	1188	aio_close $fh;
828		1189
829	if (@$objs) {	1190	if (@$objs) {
830	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) {
831	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	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;
834	aio_fsync $fh;	1197	aio_fsync $fh;
		1198	}
835	close $fh;	1199	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
837	}	1201	}
838	} else {	1202	} else {
839	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
840	}	1204	}
841		1205
842	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1210	} else {
844	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
845	}	1212	}
846	} else {	1213	} else {
847	aio_unlink $filename;	1214	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
849	}	1216	}
850	}	1217	};
851	}	1218	}
852		1219
853	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
855		1222
…		…
867	or return;	1234	or return;
868		1235
869	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
871	or return;	1238	or return;
		1239
872	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
873	}	1242	}
874		1243
		1244	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
877	return ($data, $av);	1248	($data, $av)
878	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
879		1256
880	#############################################################################	1257	#############################################################################
881	# command handling &c	1258	# command handling &c
882		1259
883	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1274	}
898		1275
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1277
901	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.
902		1283
903	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
904	called.	1285	called.
905		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
906	=cut	1298	=cut
907		1299
908	sub register_extcmd {	1300	sub register_extcmd {
909	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
910		1302
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1303	$EXTCMD{$name} = $cb;
915	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
916		1313
917	cf::player->attach (	1314	cf::player->attach (
918	on_command => sub {	1315	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
920		1317
921	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
922	or return;	1319	or return;
923		1320
…		…
928	cf::override;	1325	cf::override;
929	},	1326	},
930	on_extcmd => sub {	1327	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
932		1329
933	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1331
935	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
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
941	} else {	1347	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1349	}
944		1350
945	cf::override;	1351	cf::override;
946	},	1352	},
947	);	1353	);
948		1354
949	sub register {	1355	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1356	sub cache_extensions {
956	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
957		1358
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1362	}
1008	}	1363	};
1009		1364
1010	# remove extcmds	1365	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1366	}
1024		1367
1025	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
1026	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1373	next unless -r $path;
1028	eval {	1374
1029	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	}
1030	1	1435	}
1031	} 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	}
1032	}	1446	};
1033	}	1447	}
1034		1448
1035	#############################################################################	1449	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1450
1038	*cf::mapsupport::on_clean = sub {	1451	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1452
1073	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
1074		1454
1075	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
1076		1456
1077	=cut	1457	=cut
1078		1458
1079	package cf::player;	1459	package cf::player;
1080		1460
		1461	use Coro::AIO;
		1462
1081	=head3 cf::player	1463	=head3 cf::player
1082		1464
1083	=over 4	1465	=over 4
1084		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
1085	=item cf::player::find $login	1481	=item cf::player::find $login
1086		1482
1087	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
1088		1484
1089	=cut	1485	=cut
1090		1486
1091	sub playerdir($) {	1487	sub playerdir($) {
1092	cf::localdir	1488	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1490	}
1098		1491
1099	sub path($) {	1492	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1494
1102	(playerdir $login) . "/$login.pl"	1495	(playerdir $login) . "/playerdata"
1103	}	1496	}
1104		1497
1105	sub find_active($) {	1498	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
1110		1503
1111	sub exists($) {	1504	sub exists($) {
1112	my ($login) = @_;	1505	my ($login) = @_;
1113		1506
1114	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1508	or !aio_stat path $login
1116	}	1509	}
1117		1510
1118	sub find($) {	1511	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1513	my $login = $_[0];
1121		1514
1122	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
1123		1516
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1517	$cf::PLAYER{$_[0]} || do {
		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
		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;
		1533	$cf::PLAYER{$login} = $pl
		1534	}
1125	};	1535	}
1126	}	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	);
1127		1550
1128	sub save($) {	1551	sub save($) {
1129	my ($pl) = @_;	1552	my ($pl) = @_;
1130		1553
1131	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
1132		1555
1133	my $path = path $pl;	1556	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1557	my $guard = cf::lock_acquire "user_save:$path";
1135		1558
1136	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
		1560
		1561	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1138		1563
1139	Coro::cede;	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
		1596	=item $pl->quit_character
		1597
		1598	Nukes the player without looking back. If logged in, the connection will
		1599	be destroyed. May block for a long time.
		1600
		1601	=cut
		1602
1157	sub quit_character {	1603	sub quit_character {
1158	my ($pl) = @_;	1604	my ($pl) = @_;
1159		1605
		1606	my $name = $pl->ob->name;
		1607
1160	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1161	$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
1162		1610
1163	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1164	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1165	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1166	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1167		1617
1168	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1169	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
1170	IO::AIO::aio_rename $path, $temp, sub {	1620	aio_rename $path, $temp;
1171	delete $cf::PLAYER{$pl->ob->name};	1621	delete $cf::PLAYER{$pl->ob->name};
1172	$pl->destroy;	1622	$pl->destroy;
1173		1623
		1624	my $prefix = qr<^~\Q$name\E/>;
		1625
		1626	# nuke player maps
		1627	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1628
1174	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;
		1644	}
		1645
		1646	=item cf::player::list_logins
		1647
		1648	Returns am arrayref of all valid playernames in the system, can take a
		1649	while and may block, so not sync_job-capable, ever.
		1650
		1651	=cut
		1652
		1653	sub list_logins {
		1654	my $dirs = aio_readdir $PLAYERDIR
		1655	or return [];
		1656
		1657	my @logins;
		1658
		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") {
		1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1666	aio_read $fh, 0, 512, my $buf, 0 or next;
		1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
		1669
		1670	utf8::decode $login;
		1671	push @logins, $login;
1175	};	1672	}
1176	}
1177		1673
		1674	\@logins
		1675	}
		1676
		1677	=item $player->maps
		1678
		1679	Returns an arrayref of map paths that are private for this
		1680	player. May block.
		1681
		1682	=cut
		1683
		1684	sub maps($) {
		1685	my ($pl) = @_;
		1686
		1687	$pl = ref $pl ? $pl->ob->name : $pl;
		1688
		1689	my $files = aio_readdir playerdir $pl
		1690	or return;
		1691
		1692	my @paths;
		1693
		1694	for (@$files) {
		1695	utf8::decode $_;
		1696	next if /\.(?:pl|pst)$/;
		1697	next unless /^$PATH_SEP/o;
		1698
		1699	push @paths, cf::map::normalise "~$pl/$_";
		1700	}
		1701
		1702	\@paths
		1703	}
		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1178	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1179		1710
1180	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1181		1712
1182	=cut	1713	=cut
1183		1714
1184	sub ext_reply($$$%) {	1715	sub ext_reply($$@) {
1185	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1186		1717
1187	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1188
1189	$self->send ("ext " . cf::to_json \%msg);
1190	}	1719	}
1191		1720
1192	package cf;	1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		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	}
1193		1761
1194	=back	1762	=back
1195
1196		1763
1197	=head3 cf::map	1764	=head3 cf::map
1198		1765
1199	=over 4	1766	=over 4
1200		1767
…		…
1203	package cf::map;	1770	package cf::map;
1204		1771
1205	use Fcntl;	1772	use Fcntl;
1206	use Coro::AIO;	1773	use Coro::AIO;
1207		1774
		1775	use overload
		1776	'""' => \&as_string,
		1777	fallback => 1;
		1778
1208	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1209	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1210		1781
1211	sub generate_random_map {	1782	sub generate_random_map {
1212	my ($path, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1213		1786
1214	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1215	cf::map::_create_random_map	1788	$self->_create_random_map (
1216	$path,
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1224	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1796	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1225	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1797	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1226	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1798	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1227	(cf::region::find $rmp->{region})	1799	(cf::region::find $rmp->{region}), $rmp->{custom}
		1800	)
1228	}	1801	}
1229		1802
1230	# and all this just because we cannot iterate over	1803	=item cf::map->register ($regex, $prio)
1231	# all maps in C++...
1232	sub change_all_map_light {
1233	my ($change) = @_;
1234		1804
1235	$_->change_map_light ($change)	1805	Register a handler for the map path matching the given regex at the
1236	for grep $_->outdoor, values %cf::MAP;	1806	givne priority (higher is better, built-in handlers have priority 0, the
1237	}	1807	default).
1238		1808
1239	sub try_load_header($) {	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 {
1240	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) = @_;
1241		1948
1242	utf8::encode $path;	1949	utf8::encode $path;
1243	aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1244	or return;	1951	or return;
1245		1952
1246	my $map = cf::map::new	1953	$self->_load_header ($f)
1247	or return;	1954	or return;
1248		1955
1249	# for better error messages only, will be overwritten	1956	local $MAP_LOADING{$self->{path}} = $self;
1250	$map->path ($path);	1957	$f->resolve_delayed_derefs;
1251		1958
1252	$map->load_header ($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
1253	or return;	2002	or return;
		2003	$self->prepare_orig;
		2004	}
1254		2005
1255	$map->{load_path} = $path;	2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
1256		2008
1257	$map	2009	$self->default_region (cf::region::find_by_path $self->{path})
		2010	unless $self->default_region;
		2011
		2012	1
1258	}	2013	}
1259		2014
1260	sub find;	2015	sub find;
1261	sub find {	2016	sub find {
1262	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1263		2018
1264	#warn "find<$path,$origin>\n";#d#
1265
1266	$path = new cf::path $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1267	my $key = $path->as_string;
1268		2020
1269	cf::lock_wait "map_find:$key";	2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1270
1271	$cf::MAP{$key} || do {
1272	my $guard = cf::lock_acquire "map_find:$key";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1273		2023
1274	# do it the slow way	2024	$cf::MAP{$path} || do {
1275	my $map = try_load_header $path->save_path;	2025	my $map = new_from_path cf::map $path
1276
1277	Coro::cede;
1278
1279	if ($map) {
1280	$map->last_access ((delete $map->{last_access})
1281	|| $cf::RUNTIME); #d#
1282	# safety
1283	$map->{instantiate_time} = $cf::RUNTIME
1284	if $map->{instantiate_time} > $cf::RUNTIME;
1285	} else {
1286	if (my $rmp = $path->random_map_params) {
1287	$map = generate_random_map $key, $rmp;
1288	} else {
1289	$map = try_load_header $path->load_path;
1290	}
1291
1292	$map or return;	2026	or return;
1293		2027
1294	$map->{load_original} = 1;
1295	$map->{instantiate_time} = $cf::RUNTIME;
1296	$map->last_access ($cf::RUNTIME);
1297	$map->instantiate;
1298
1299	# per-player maps become, after loading, normal maps
1300	$map->per_player (0) if $path->{user_rel};
1301	}
1302
1303	$map->path ($key);
1304	$map->{path} = $path;
1305	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1306		2029
1307	Coro::cede;	2030	$map->load_header
		2031	or return;
1308		2032
1309	if ($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;
1310	$map->reset;	2038	$map->reset;
1311	undef $guard;
1312	$map = find $path	2039	return find $path;
1313	or return;
1314	}	2040	}
1315		2041
1316	$cf::MAP{$key} = $map	2042	$cf::MAP{$path} = $map
1317	}	2043	}
1318	}	2044	}
		2045
		2046	sub pre_load { }
		2047	#sub post_load { } # XS
1319		2048
1320	sub load {	2049	sub load {
1321	my ($self) = @_;	2050	my ($self) = @_;
1322		2051
		2052	local $self->{deny_reset} = 1; # loading can take a long time
		2053
1323	my $path = $self->{path};	2054	my $path = $self->{path};
		2055
		2056	{
1324	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2057	my $guard = cf::lock_acquire "map_data:$path";
1325		2058
		2059	return unless $self->valid;
1326	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1327		2061
1328	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1329		2063
1330	$self->alloc;	2064	$self->alloc;
1331	$self->load_objects ($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)
1332	or return;	2072	or return;
1333		2073
1334	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1335	if delete $self->{load_original};	2075	if delete $self->{load_original};
1336		2076
1337	if (my $uniq = $path->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1338	utf8::encode $uniq;	2078	utf8::encode $uniq;
1339	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1340	$self->clear_unique_items;	2081	$self->clear_unique_items;
1341	$self->load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1342	}	2085	}
1343	}	2086	}
1344		2087
1345	Coro::cede;	2088	$f->resolve_delayed_derefs;
1346		2089
		2090	cf::cede_to_tick;
1347	# now do the right thing for maps	2091	# now do the right thing for maps
1348	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1349
1350	if ($self->{path}->is_style_map) {
1351	$self->{deny_save} = 1;
1352	$self->{deny_reset} = 1;
1353	} else {
1354	$self->fix_auto_apply;
1355	$self->decay_objects;
1356	$self->update_buttons;
1357	$self->set_darkness_map;
1358	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1359	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;
1360	$self->activate;	2102	$self->activate;
1361	}	2103	}
1362		2104
1363	Coro::cede;	2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
1364		2107
1365	$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	$self
		2127	}
		2128
		2129	# find and load all maps in the 3x3 area around a map
		2130	sub load_neighbours {
		2131	my ($map) = @_;
		2132
		2133	my @neigh; # diagonal neighbours
		2134
		2135	for (0 .. 3) {
		2136	my $neigh = $map->tile_path ($_)
		2137	or next;
		2138	$neigh = find $neigh, $map
		2139	or next;
		2140	$neigh->load;
		2141
		2142	push @neigh,
		2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2145	}
		2146
		2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
		2149	my $neigh = find $path, $origin
		2150	or next;
		2151	$neigh->load;
		2152	}
1366	}	2153	}
1367		2154
1368	sub find_sync {	2155	sub find_sync {
1369	my ($path, $origin) = @_;	2156	my ($path, $origin) = @_;
1370		2157
1371	cf::sync_job { cf::map::find $path, $origin }	2158	cf::sync_job { find $path, $origin }
1372	}	2159	}
1373		2160
1374	sub do_load_sync {	2161	sub do_load_sync {
1375	my ($map) = @_;	2162	my ($map) = @_;
1376		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1377	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
		2168	}
		2169
		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
		2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
		2187	while (%MAP_PREFETCH) {
		2188	while (my ($k, $v) = each %MAP_PREFETCH) {
		2189	if (my $map = find $k) {
		2190	$map->load if $v;
		2191	}
		2192
		2193	delete $MAP_PREFETCH{$k};
		2194	}
		2195	}
		2196	undef $MAP_PREFETCHER;
		2197	};
		2198	$MAP_PREFETCHER->prio (6);
		2199
		2200	()
1378	}	2201	}
1379		2202
1380	sub save {	2203	sub save {
1381	my ($self) = @_;	2204	my ($self) = @_;
1382		2205
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2207
1385	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1386		2209
1387	return unless $self->dirty;	2210	return unless $self->dirty;
1388		2211
1389	my $save = $self->{path}->save_path; utf8::encode $save;	2212	my $save = $self->save_path; utf8::encode $save;
1390	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2213	my $uniq = $self->uniq_path; utf8::encode $uniq;
1391		2214
1392	$self->{load_path} = $save;	2215	$self->{load_path} = $save;
1393		2216
1394	return if $self->{deny_save};	2217	return if $self->{deny_save};
1395		2218
1396	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1397		2220
1398	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1399	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1400	};	2224	};
1401		2225
		2226	cf::get_slot 0.02;
		2227
1402	if ($uniq) {	2228	if ($uniq) {
1403	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1404	$self->save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1405	} else {	2231	} else {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1407	}	2233	}
1408	}	2234	}
1409		2235
1410	sub swap_out {	2236	sub swap_out {
1411	my ($self) = @_;	2237	my ($self) = @_;
1412		2238
1413	# save first because save cedes	2239	# save first because save cedes
1414	$self->save;	2240	$self->save;
1415		2241
1416	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1417		2243
1418	return if $self->players;	2244	return if $self->players;
1419	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1420	return if $self->{deny_save};	2246	return if $self->{deny_save};
1421		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1422	$self->clear;	2252	$self->clear;
1423	$self->in_memory (cf::MAP_SWAPPED);
1424	}	2253	}
1425		2254
1426	sub reset_at {	2255	sub reset_at {
1427	my ($self) = @_;	2256	my ($self) = @_;
1428		2257
1429	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1430	return 1e99 if $self->{path}{user_rel};
1431	return 1e99 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1432		2260
1433	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1434	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1435		2263
…		…
1440	my ($self) = @_;	2268	my ($self) = @_;
1441		2269
1442	$self->reset_at <= $cf::RUNTIME	2270	$self->reset_at <= $cf::RUNTIME
1443	}	2271	}
1444		2272
1445	sub unlink_save {
1446	my ($self) = @_;
1447
1448	utf8::encode (my $save = $self->{path}->save_path);
1449	aioreq_pri 3; IO::AIO::aio_unlink $save;
1450	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1451	}
1452
1453	sub rename {
1454	my ($self, $new_path) = @_;
1455
1456	$self->unlink_save;
1457
1458	delete $cf::MAP{$self->path};
1459	$self->{path} = new cf::path $new_path;
1460	$self->path ($self->{path}->as_string);
1461	$cf::MAP{$self->path} = $self;
1462
1463	$self->save;
1464	}
1465
1466	sub reset {	2273	sub reset {
1467	my ($self) = @_;	2274	my ($self) = @_;
1468		2275
1469	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1470		2277
1471	return if $self->players;	2278	return if $self->players;
1472	return if $self->{path}{user_rel};#d#
1473		2279
1474	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	}
1475		2291
1476	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1477		2293
		2294	$self->deactivate;
1478	$_->clear_links_to ($self) for values %cf::MAP;	2295	$_->clear_links_to ($self) for values %cf::MAP;
		2296	$self->clear;
1479		2297
1480	$self->unlink_save;	2298	$self->unlink_save;
1481	$self->destroy;	2299	$self->destroy;
1482	}	2300	}
1483		2301
1484	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1485		2303
1486	sub nuke {	2304	sub nuke {
1487	my ($self) = @_;	2305	my ($self) = @_;
1488		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};
1489	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1490	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1491	$self->rename ("{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2319
		2320	$cf::MAP{$self->path} = $self;
		2321	}
		2322
1492	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
1493	}	2324	}
1494		2325
1495	sub customise_for {	2326	=item $maps = cf::map::tmp_maps
1496	my ($map, $ob) = @_;
1497		2327
1498	if ($map->per_player) {	2328	Returns an arrayref with all map paths of currently instantiated and saved
1499	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
1500	}	2334	[
1501		2335	map {
1502	$map	2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
1503	}	2342	}
1504		2343
1505	sub emergency_save {	2344	=item $maps = cf::map::random_maps
1506	my $freeze_guard = cf::freeze_mainloop;
1507		2345
1508	warn "enter emergency perl save\n";	2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
1509		2348
1510	cf::sync_job {	2349	=cut
1511	warn "begin emergency player save\n";
1512	$_->save for values %cf::PLAYER;
1513	warn "end emergency player save\n";
1514		2350
1515	warn "begin emergency map save\n";	2351	sub random_maps() {
1516	$_->save for values %cf::MAP;	2352	[
1517	warn "end emergency map save\n";	2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
		2360	}
		2361
		2362	=item cf::map::unique_maps
		2363
		2364	Returns an arrayref of paths of all shared maps that have
		2365	instantiated unique items. May block.
		2366
		2367	=cut
		2368
		2369	sub unique_maps() {
		2370	[
		2371	map {
		2372	utf8::decode $_;
		2373	s/\.map$//; # TODO future compatibility hack
		2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2375	? ()
		2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
		2378	]
		2379	}
		2380
		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;
1518	};	2408	}
1519		2409
1520	warn "leave emergency perl save\n";	2410	\@maps
		2411	}
		2412
		2413	=back
		2414
		2415	=head3 cf::object
		2416
		2417	=cut
		2418
		2419	package cf::object;
		2420
		2421	=over 4
		2422
		2423	=item $ob->inv_recursive
		2424
		2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
		2427
		2428	=cut
		2429
		2430	sub inv_recursive_;
		2431	sub inv_recursive_ {
		2432	map { $_, inv_recursive_ $_->inv } @_
		2433	}
		2434
		2435	sub inv_recursive {
		2436	inv_recursive_ inv $_[0]
		2437	}
		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	}
1521	}	2465	}
1522		2466
1523	package cf;	2467	package cf;
1524		2468
1525	=back	2469	=back
1526
1527		2470
1528	=head3 cf::object::player	2471	=head3 cf::object::player
1529		2472
1530	=over 4	2473	=over 4
1531		2474
…		…
1534	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>
1535	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
1536	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1537		2480
1538	=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	};
1539		2496
1540	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1541	# with dialog boxes.	2498	# with dialog boxes.
1542	#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
1543	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1545		2502
1546	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1547		2504
1548	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1549	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1550	} 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 {
1551	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1552	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1553	}	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 (@_);
1554	}	2530	}
1555		2531
1556	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1557		2533
1558	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1571		2547
1572	=item $player_object->enter_link	2548	=item $player_object->enter_link
1573		2549
1574	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}>).
1575		2551
1576	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.
1577	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.
1578		2558
1579	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1580		2560
1581	Moves the player out of the specila link map onto the given map. If the	2561	Moves the player out of the special C<{link}> map onto the specified
1582	map is not valid (or omitted), the player will be moved back to the	2562	map. If the map is not valid (or omitted), the player will be moved back
1583	location he/she was before the call to C<enter_link>, or, if that fails,	2563	to the location he/she was before the call to C<enter_link>, or, if that
1584	to the emergency map position.	2564	fails, to the emergency map position.
1585		2565
1586	Might block.	2566	Might block.
1587		2567
1588	=cut	2568	=cut
		2569
		2570	sub link_map {
		2571	unless ($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	$LINK_MAP
		2578	}
1589		2579
1590	sub cf::object::player::enter_link {	2580	sub cf::object::player::enter_link {
1591	my ($self) = @_;	2581	my ($self) = @_;
1592		2582
1593	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
1594		2584
1595	return if $self->map == $LINK_MAP;	2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
1596		2586
1597	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1598	if $self->map;	2588	if $self->map && $self->map->{path} ne "{link}";
1599		2589
1600	$self->enter_map ($LINK_MAP, 20, 20);	2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1601	}	2591	}
1602		2592
1603	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1604	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
		2595
		2596	return unless $self->contr->active;
1605		2597
1606	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1607		2599
1608	unless ($map) {	2600	unless ($map) {
1609	# restore original map position	2601	# restore original map position
…		…
1620	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1621	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1622		2614
1623	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1624	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1625	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1626		2618
1627	$map->load;	2619	$map->load;
		2620	$map->load_neighbours;
1628		2621
1629	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
1630	$self->activate_recursive;	2628	$self->activate_recursive;
1631	$self->enter_map ($map, $x, $y);
1632	}	2629	}
1633		2630
1634	cf::player->attach (	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1635	on_logout => sub {
1636	my ($pl) = @_;
1637		2632
1638	# abort map switching before logout	2633	Moves the player to the given map-path and coordinates by first freezing
1639	if ($pl->ob->{_link_pos}) {	2634	her, loading and preparing them map, calling the provided $check callback
1640	cf::sync_job {	2635	that has to return the map if sucecssful, and then unfreezes the player on
1641	$pl->ob->leave_link	2636	the new (success) or old (failed) map position. In either case, $done will
1642	};	2637	be called at the end of this process.
1643	}
1644	},
1645	on_login => sub {
1646	my ($pl) = @_;
1647		2638
1648	# try to abort aborted map switching on player login :)	2639	Note that $check will be called with a potentially non-loaded map, so if
1649	# should happen only on crashes	2640	it needs a loaded map it has to call C<< ->load >>.
1650	if ($pl->ob->{_link_pos}) {
1651	$pl->ob->enter_link;
1652	(async {
1653	# we need this sleep as the login has a concurrent enter_exit running
1654	# and this sleep increases chances of the player not ending up in scorn
1655	$pl->ob->reply (undef,
1656	"There was an internal problem at your last logout, "
1657	. "the server will try to bring you to your intended destination in a second.",
1658	cf::NDI_RED);
1659	Coro::Timer::sleep 1;
1660	$pl->ob->leave_link;
1661	})->prio (2);
1662	}
1663	},
1664	);
1665		2641
1666	=item $player_object->goto ($path, $x, $y)
1667
1668	=cut	2642	=cut
		2643
		2644	our $GOTOGEN;
1669		2645
1670	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1671	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
		2648
		2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1672		2651
1673	$self->enter_link;	2652	$self->enter_link;
1674		2653
1675	(async {	2654	(async {
1676	$path = new cf::path $path;	2655	$Coro::current->{desc} = "player::goto $path $x $y";
1677		2656
1678	my $map = cf::map::find $path->as_string;	2657	# *tag paths override both path and x|y
		2658	if ($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) {
1679	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
1680		2681	$map = $check->($map) if $check && $map;
1681	# warn "entering ", $map->path, " at ($x, $y)\n"	2682	} else {
1682	# if $map;
1683
1684	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
1685		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};
1686	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1687	})->prio (1);	2700	})->prio (1);
1688	}	2701	}
1689		2702
1690	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1691		2704
…		…
1693		2706
1694	sub parse_random_map_params {	2707	sub parse_random_map_params {
1695	my ($spec) = @_;	2708	my ($spec) = @_;
1696		2709
1697	my $rmp = { # defaults	2710	my $rmp = { # defaults
1698	xsize => 10,	2711	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2712	ysize => (cf::rndm 15, 40),
		2713	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2714	#layout => string,
1700	};	2715	};
1701		2716
1702	for (split /\n/, $spec) {	2717	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2718	my ($k, $v) = split /\s+/, $_, 2;
1704		2719
…		…
1716	# that depends on the exit object	2731	# that depends on the exit object
1717		2732
1718	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
1719		2734
1720	if ($exit->map) {	2735	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2736	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1725	}	2742	}
1726		2743
1727	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1728		2745
1729	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1730	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
		2748	my $meta = "$RANDOMDIR/$md5.meta";
1731		2749
1732	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) {
1733	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;
1734		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1735	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1737	}	2761	}
1738	}	2762	}
1739		2763
1740	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
…		…
1743	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1744		2768
1745	$self->enter_link;	2769	$self->enter_link;
1746		2770
1747	(async {	2771	(async {
1748	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
1749	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
1750	prepare_random_map $exit	2781	prepare_random_map $exit
1751	if $exit->slaying eq "/!";	2782	if $exit->slaying eq "/!";
		2783	}
1752		2784
1753	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;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
1755		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
1756	1;	2795	1
1757	}) {	2796	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1759	. "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. "
1760	. "Please report this to the dungeon master",	2799	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2801
1763	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2803	$self->leave_link;
1765	}	2804	}
1766	})->prio (1);	2805	})->prio (1);
…		…
1779		2818
1780	sub cf::client::send_drawinfo {	2819	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2820	my ($self, $text, $flags) = @_;
1782		2821
1783	utf8::encode $text;	2822	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2824	}
1786		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	}
1787		3047
1788	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
1789		3049
1790	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
1791	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>,
1792	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>.
1793		3053
1794	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
1795	reliable at some point in the future.	3055	become reliable at some point in the future.
1796		3056
1797	=cut	3057	=cut
1798		3058
1799	sub cf::client::query {	3059	sub cf::client::query {
1800	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
1808	utf8::encode $text;	3068	utf8::encode $text;
1809	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1810		3070
1811	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
1812	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
1813	}	3075	}
1814		3076
1815	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
1816	on_reply => sub {	3083	on_reply => sub {
1817	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
1818		3085
1819	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
1820	# get handled first	3087	# get handled first
1821	my $queue = delete $ns->{query_queue}	3088	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	3089	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		3090
1824	(shift @$queue)->[1]->($msg);	3091	(shift @$queue)->[1]->($msg);
		3092	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		3093
1826	push @{ $ns->{query_queue} }, @$queue;	3094	push @{ $ns->{query_queue} }, @$queue;
1827		3095
1828	if (@{ $ns->{query_queue} } == @$queue) {	3096	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	3097	if (@$queue) {
…		…
1831	} else {	3099	} else {
1832	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1833	}	3101	}
1834	}	3102	}
1835	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($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	},
1836	);	3130	);
1837		3131
1838	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
1839		3133
1840	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
1856		3150
1857	$coro	3151	$coro
1858	}	3152	}
1859		3153
1860	cf::client->attach (	3154	cf::client->attach (
1861	on_destroy => sub {	3155	on_client_destroy => sub {
1862	my ($ns) = @_;	3156	my ($ns) = @_;
1863		3157
1864	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1865	},	3159	},
1866	);	3160	);
…		…
1881	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
1882	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
1883		3177
1884	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
1885		3179
1886	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
1887		3185
1888	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
1889		3187
1890	=pod	3188	=pod
1891		3189
1892	The following fucntions and emthods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
1893		3191
1894	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
1895	cf::object::player player	3197	cf::object::player
1896	cf::player peaceful	3198	player
1897	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
1898		3205
1899	=cut	3206	=cut
1900		3207
1901	for (	3208	for (
1902	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
1903	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
1904	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
1905	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
1906	) {	3215	) {
1907	no strict 'refs';	3216	no strict 'refs';
1908	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
1909	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1927		3236
1928	my $qcode = $code;	3237	my $qcode = $code;
1929	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1930	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
1931		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
1932	local $_;	3244	local $_;
1933	local @safe::cf::_safe_eval_args = values %vars;
1934		3245
1935	my $eval =	3246	my $eval =
1936	"do {\n"	3247	"do {\n"
1937	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1938	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
1939	. $code	3250	. $code
1940	. "\n}"	3251	. "\n}"
1941	;	3252	;
1942		3253
		3254	if ($CFG{safe_eval}) {
1943	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
1944	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1945	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
1946		3263
1947	if ($@) {	3264	if ($@) {
1948	warn "$@";	3265	warn "$@";
1949	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
1950	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1969	=cut	3286	=cut
1970		3287
1971	sub register_script_function {	3288	sub register_script_function {
1972	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
1973		3290
1974	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
1975	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
1976	}	3293	}
1977		3294
1978	=back	3295	=back
1979		3296
1980	=cut	3297	=cut
1981		3298
1982	#############################################################################	3299	#############################################################################
		3300	# the server's init and main functions
1983		3301
1984	=head2 EXTENSION DATABASE SUPPORT	3302	sub load_facedata($) {
		3303	my ($path) = @_;
1985		3304
1986	Crossfire maintains a very simple database for extension use. It can	3305	# HACK to clear player env face cache, we need some signal framework
1987	currently store anything that can be serialised using Storable, which	3306	# for this (global event?)
1988	excludes objects.	3307	%ext::player_env::MUSIC_FACE_CACHE = ();
1989		3308
1990	The parameter C<$family> should best start with the name of the extension	3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1991	using it, it should be unique.
1992		3310
1993	=over 4	3311	warn "loading facedata from $path\n";
1994		3312
1995	=item $hashref = cf::db_get $family	3313	my $facedata;
		3314	0 < aio_load $path, $facedata
		3315	or die "$path: $!";
1996		3316
1997	Return a hashref for use by the extension C<$family>, which can be	3317	$facedata = Coro::Storable::thaw $facedata;
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000		3318
2001	=item $value = cf::db_get $family => $key	3319	$facedata->{version} == 2
		3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
2002		3321
2003	Returns a single value from the database	3322	# patch in the exptable
2004		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2005	=item cf::db_put $family => $hashref	3324	$facedata->{resource}{"res/exp_table"} = {
2006		3325	type => FT_RSRC,
2007	Stores the given family hashref into the database. Updates are delayed, if	3326	data => $exp_table,
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3327	hash => (Digest::MD5::md5 $exp_table),
2009
2010	=item cf::db_put $family => $key => $value
2011
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022
2023	=cut
2024
2025	our $DB;
2026
2027	{
2028	my $path = cf::localdir . "/database.pst";
2029
2030	sub db_load() {
2031	$DB = stat $path ? Storable::retrieve $path : { };
2032	}
2033
2034	my $pid;
2035
2036	sub db_save() {
2037	waitpid $pid, 0 if $pid;
2038	if (0 == ($pid = fork)) {
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	3328	};
		3329	cf::cede_to_tick;
2056		3330
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}	3331	{
		3332	my $faces = $facedata->{faceinfo};
2061		3333
2062	sub db_get($;$) {	3334	while (my ($face, $info) = each %$faces) {
2063	@_ >= 2	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2064	? $DB->{$_[0]}{$_[1]}
2065	: ($DB->{$_[0]} ||= { })
2066	}
2067		3336
2068	sub db_put($$;$) {	3337	cf::face::set_visibility $idx, $info->{visibility};
2069	if (@_ >= 3) {	3338	cf::face::set_magicmap $idx, $info->{magicmap};
2070	$DB->{$_[0]}{$_[1]} = $_[2];	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2071	} else {	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076		3341
2077	cf::global->attach (	3342	cf::cede_to_tick;
2078	prio => 10000,
2079	on_cleanup => sub {
2080	db_sync;
2081	},	3343	}
2082	);
2083	}
2084		3344
2085	#############################################################################	3345	while (my ($face, $info) = each %$faces) {
2086	# the server's main()	3346	next unless $info->{smooth};
2087		3347
2088	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
2089	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	3477	or return;
2091		3478
2092	local $/;	3479	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2094		3481
2095	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2096		3483
2097	$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};
2098	$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};
2099		3486
2100	if (exists $CFG{mlockall}) {	3487	if (exists $CFG{mlockall}) {
2101	eval {	3488	eval {
2102	$CFG{mlockall} ? &mlockall : &munlockall	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2103	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2104	};	3491	};
2105	warn $@ if $@;	3492	warn $@ if $@;
2106	}	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;
2107	}	3524	}
2108		3525
2109	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
2110	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2112	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#
2113	async { Event::one_event };	3544	(async {
		3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
		3547	})->prio (Coro::PRIO_MAX);
2114	};	3548	};
2115		3549
2116	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
2117	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
2118	load_extensions;	3568	load_extensions;
2119	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;
2120	}	3580	}
2121		3581
2122	#############################################################################	3582	#############################################################################
2123	# initialisation	3583	# initialisation and cleanup
2124		3584
		3585	# install some emergency cleanup handlers
		3586	BEGIN {
		3587	our %SIGWATCHER = ();
		3588	for my $signal (qw(INT HUP TERM)) {
		3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3590	cf::cleanup "SIG$signal";
		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
		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 };
		3681	}
		3682
		3683	sub emergency_save() {
		3684	my $freeze_guard = cf::freeze_mainloop;
		3685
		3686	warn "emergency_perl_save: enter\n";
		3687
		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
		3694	# use a peculiar iteration method to avoid tripping on perl
		3695	# refcount bugs in for. also avoids problems with players
		3696	# and maps saved/destroyed asynchronously.
		3697	warn "emergency_perl_save: begin player save\n";
		3698	for my $login (keys %cf::PLAYER) {
		3699	my $pl = $cf::PLAYER{$login} or next;
		3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3702	$pl->save;
		3703	}
		3704	warn "emergency_perl_save: end player save\n";
		3705
		3706	warn "emergency_perl_save: begin map save\n";
		3707	for my $path (keys %cf::MAP) {
		3708	my $map = $cf::MAP{$path} or next;
		3709	$map->valid or next;
		3710	$map->save;
		3711	}
		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";
		3721	};
		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
		3728	warn "emergency_perl_save: leave\n";
		3729	}
		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 $pkg\n";#d#
		3765	}
		3766
2125	sub reload() {	3767	sub do_reload_perl() {
2126	# can/must only be called in main	3768	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	3770	warn "can only reload from main coroutine";
2129	return;	3771	return;
2130	}	3772	}
2131		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
2132	warn "reloading...";	3779	warn "reloading...";
2133		3780
2134	my $guard = freeze_mainloop;	3781	warn "entering sync_job";
		3782
		3783	cf::sync_job {
		3784	cf::write_runtime_sync; # external watchdog should not bark
2135	cf::emergency_save;	3785	cf::emergency_save;
		3786	cf::write_runtime_sync; # external watchdog should not bark
2136		3787
2137	eval {	3788	warn "syncing database to disk";
		3789	BDB::db_env_txn_checkpoint $DB_ENV;
		3790
2138	# 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
2139		3792
2140	# cancel all watchers	3793	warn "flushing outstanding aio requests";
2141	for (Event::all_watchers) {	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2143	}
2144
2145	# cancel all extension coros
2146	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();
2148
2149	# unload all extensions
2150	for (@exts) {
2151	warn "unloading <$_>";
2152	unload_extension $_;
2153	}
2154
2155	# unload all modules loaded from $LIBDIR
2156	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158
2159	warn "removing <$k>";
2160	delete $INC{$k};
2161
2162	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;
2164
2165	if (my $cb = $k->can ("unload_module")) {
2166	$cb->();
2167	}	3796	}
2168		3797
2169	Symbol::delete_package $k;	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) {
		3811	warn "... unloading $pkg";
		3812
		3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
		3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2170	}	3822	}
2171		3823
2172	# sync database to disk	3824	warn "unloading all perl modules loaded from $LIBDIR";
2173	cf::db_sync;	3825	while (my ($k, $v) = each %INC) {
2174	IO::AIO::flush;	3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2175		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 $k;
		3839	}
		3840
2176	# get rid of safe::, as good as possible	3841	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2178	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);
2179		3844
2180	# remove register_script_function callbacks	3845	warn "unloading cf.pm \"a bit\"";
2181	# TODO
2182
2183	# unload cf.pm "a bit"
2184	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2185		3848
2186	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2187	# and global variables created in xs	3850	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2189		3852
2190	# reload cf.pm	3853	warn "unload completed, starting to reload now";
		3854
2191	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2192	require cf;	3856	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2194		3858
2195	# load config and database again	3859	warn "loading config and database again";
2196	cf::cfg_load;	3860	cf::reload_config;
2197	cf::db_load;
2198		3861
2199	# load extensions
2200	warn "load extensions";	3862	warn "loading extensions";
2201	cf::load_extensions;	3863	cf::load_extensions;
2202		3864
2203	# reattach attachments to objects	3865	if ($REATTACH_ON_RELOAD) {
2204	warn "reattach";	3866	warn "reattaching attachments to objects/players";
2205	_global_reattach;	3867	_global_reattach; # objects, sockets
		3868	warn "reattaching attachments to maps";
2206	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 $RELOAD_WATCHER;
		3905	};
2207	};	3906	};
2208
2209	if ($@) {
2210	warn $@;
2211	warn "error while reloading, exiting.";
2212	exit 1;
2213	}
2214
2215	warn "reloaded successfully";
2216	};
2217
2218	#############################################################################
2219
2220	unless ($LINK_MAP) {
2221	$LINK_MAP = cf::map::new;
2222
2223	$LINK_MAP->width (41);
2224	$LINK_MAP->height (41);
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,
2233	cb => sub {
2234	$_[0]->w->cancel;
2235
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});
2254
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	3907	}
2260
2261	register "<global>", __PACKAGE__;
2262		3908
2263	register_command "reload" => sub {	3909	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2265		3911
2266	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	3913	$who->message ("reloading server.");
		3914	async {
		3915	$Coro::current->{desc} = "perl_reload";
		3916	reload_perl;
		3917	};
2270	}	3918	}
2271	};	3919	};
2272		3920
2273	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2274		3922
2275	$TICK_WATCHER = Event->timer (	3923	my $bug_warning = 0;
2276	reentrant => 0,	3924
2277	prio => 0,	3925	our @WAIT_FOR_TICK;
2278	at => $NEXT_TICK || $TICK,	3926	our @WAIT_FOR_TICK_BEGIN;
2279	data => WF_AUTOCANCEL,	3927
2280	cb => sub {	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
2281	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2282	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;
2284		3952
2285	# if we are delayed by four ticks or more, skip them all	3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2287		3954
2288	$TICK_WATCHER->at ($NEXT_TICK);	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2289	$TICK_WATCHER->start;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2290	},	3957	Coro::async_pool {
2291	);	3958	$Coro::current->{desc} = "runtime saver";
2292
2293	IO::AIO::max_poll_time $TICK * 0.2;
2294
2295	Event->io (
2296	fd => IO::AIO::poll_fileno,
2297	poll => 'r',
2298	prio => 5,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,
2305	after => 0,
2306	interval => 10,
2307	cb => sub {
2308	(Coro::unblock_sub {
2309	write_runtime	3959	write_runtime_sync
2310	or warn "ERROR: unable to write runtime file: $!";	3960	or warn "ERROR: unable to write runtime file: $!";
2311	})->();	3961	};
2312	},	3962	}
2313	);	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;
2314		4078
2315	END { cf::emergency_save }	4079	END { cf::emergency_save }
2316		4080
2317	1	4081	1
2318		4082

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