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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.144 by root, Sun Jan 7 18:01:10 2007 UTC vs.
Revision 1.507 by root, Sat Mar 20 02:24:38 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 2.31 ();
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_command => sub {
919	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
920		1317
…		…
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
		1487	sub playerdir($) {
		1488	"$PLAYERDIR/"
		1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1490	}
		1491
1091	sub path($) {	1492	sub path($) {
1092	sprintf "%s/%s/%s/%s.pl",	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1093	cf::localdir, cf::playerdir,	1494
1094	(ref $_[0] ? $_[0]->ob->name : $_[0]) x 2	1495	(playerdir $login) . "/playerdata"
1095	}	1496	}
1096		1497
1097	sub find_active($) {	1498	sub find_active($) {
1098	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
1099	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
1102		1503
1103	sub exists($) {	1504	sub exists($) {
1104	my ($login) = @_;	1505	my ($login) = @_;
1105		1506
1106	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1107	or cf::sync_job { !aio_stat $login }	1508	or !aio_stat path $login
1108	}	1509	}
1109		1510
1110	sub find($) {	1511	sub find($) {
1111	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1112	my $login = $_[0];	1513	my $login = $_[0];
1113		1514
1114	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
1115		1516
1116	$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	}
1117	};	1535	}
1118	}	1536	}
1119		1537
1120	sub save($) {	1538	sub save($) {
1121	my ($pl) = @_;	1539	my ($pl) = @_;
1122		1540
…		…
1124		1542
1125	my $path = path $pl;	1543	my $path = path $pl;
1126	my $guard = cf::lock_acquire "user_save:$path";	1544	my $guard = cf::lock_acquire "user_save:$path";
1127		1545
1128	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
		1547
		1548	aio_mkdir playerdir $pl, 0770;
1129	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1130		1550
1131	Coro::cede;	1551	cf::get_slot 0.01;
		1552
1132	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1133	Coro::cede;	1554	cf::cede_to_tick;
1134	}	1555	}
1135		1556
1136	sub new($) {	1557	sub new($) {
1137	my ($login) = @_;	1558	my ($login) = @_;
1138		1559
…		…
1144	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1145		1566
1146	$self	1567	$self
1147	}	1568	}
1148		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
		1580	=item $pl->quit_character
		1581
		1582	Nukes the player without looking back. If logged in, the connection will
		1583	be destroyed. May block for a long time.
		1584
		1585	=cut
		1586
		1587	sub quit_character {
		1588	my ($pl) = @_;
		1589
		1590	my $name = $pl->ob->name;
		1591
		1592	$pl->{deny_save} = 1;
		1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1594
		1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
		1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1600	$pl->ns->destroy if $pl->ns;
		1601
		1602	my $path = playerdir $pl;
		1603	my $temp = "$path~$cf::RUNTIME~deleting~";
		1604	aio_rename $path, $temp;
		1605	delete $cf::PLAYER{$pl->ob->name};
		1606	$pl->destroy;
		1607
		1608	my $prefix = qr<^~\Q$name\E/>;
		1609
		1610	# nuke player maps
		1611	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1612
		1613	IO::AIO::aio_rmtree $temp;
		1614	}
		1615
		1616	=item $pl->kick
		1617
		1618	Kicks a player out of the game. This destroys the connection.
		1619
		1620	=cut
		1621
		1622	sub kick {
		1623	my ($pl, $kicker) = @_;
		1624
		1625	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1626	$pl->killer ("kicked");
		1627	$pl->ns->destroy;
		1628	}
		1629
		1630	=item cf::player::list_logins
		1631
		1632	Returns am arrayref of all valid playernames in the system, can take a
		1633	while and may block, so not sync_job-capable, ever.
		1634
		1635	=cut
		1636
		1637	sub list_logins {
		1638	my $dirs = aio_readdir $PLAYERDIR
		1639	or return [];
		1640
		1641	my @logins;
		1642
		1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
		1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1650	aio_read $fh, 0, 512, my $buf, 0 or next;
		1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
		1653
		1654	utf8::decode $login;
		1655	push @logins, $login;
		1656	}
		1657
		1658	\@logins
		1659	}
		1660
		1661	=item $player->maps
		1662
		1663	Returns an arrayref of map paths that are private for this
		1664	player. May block.
		1665
		1666	=cut
		1667
		1668	sub maps($) {
		1669	my ($pl) = @_;
		1670
		1671	$pl = ref $pl ? $pl->ob->name : $pl;
		1672
		1673	my $files = aio_readdir playerdir $pl
		1674	or return;
		1675
		1676	my @paths;
		1677
		1678	for (@$files) {
		1679	utf8::decode $_;
		1680	next if /\.(?:pl|pst)$/;
		1681	next unless /^$PATH_SEP/o;
		1682
		1683	push @paths, cf::map::normalise "~$pl/$_";
		1684	}
		1685
		1686	\@paths
		1687	}
		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1149	=item $player->ext_reply ($msgid, $msgtype, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1150		1694
1151	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1152		1696
1153	=cut	1697	=cut
1154		1698
1155	sub ext_reply($$$%) {	1699	sub ext_reply($$@) {
1156	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1157		1701
1158	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1159
1160	$self->send ("ext " . cf::to_json \%msg);
1161	}	1703	}
1162		1704
1163	package cf;	1705	=item $player->ext_msg ($type, @msg)
		1706
		1707	Sends an ext event to the client.
		1708
		1709	=cut
		1710
		1711	sub ext_msg($$@) {
		1712	my ($self, $type, @msg) = @_;
		1713
		1714	$self->ns->ext_msg ($type, @msg);
		1715	}
		1716
		1717	=head3 cf::region
		1718
		1719	=over 4
		1720
		1721	=cut
		1722
		1723	package cf::region;
		1724
		1725	=item cf::region::find_by_path $path
		1726
		1727	Tries to decuce the likely region for a map knowing only its path.
		1728
		1729	=cut
		1730
		1731	sub find_by_path($) {
		1732	my ($path) = @_;
		1733
		1734	my ($match, $specificity);
		1735
		1736	for my $region (list) {
		1737	if ($region->{match} && $path =~ $region->{match}) {
		1738	($match, $specificity) = ($region, $region->specificity)
		1739	if $region->specificity > $specificity;
		1740	}
		1741	}
		1742
		1743	$match
		1744	}
1164		1745
1165	=back	1746	=back
1166
1167		1747
1168	=head3 cf::map	1748	=head3 cf::map
1169		1749
1170	=over 4	1750	=over 4
1171		1751
…		…
1174	package cf::map;	1754	package cf::map;
1175		1755
1176	use Fcntl;	1756	use Fcntl;
1177	use Coro::AIO;	1757	use Coro::AIO;
1178		1758
		1759	use overload
		1760	'""' => \&as_string,
		1761	fallback => 1;
		1762
1179	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1181		1765
1182	sub generate_random_map {	1766	sub generate_random_map {
1183	my ($path, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1184		1770
1185	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1186	cf::map::_create_random_map	1772	$self->_create_random_map (
1187	$path,
1188	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1189	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1190	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1191	$rmp->{exit_on_final_map},	1776	$rmp->{exit_on_final_map},
1192	$rmp->{xsize}, $rmp->{ysize},	1777	$rmp->{xsize}, $rmp->{ysize},
1193	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1778	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1194	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1779	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1195	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1780	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1196	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1781	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1197	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1782	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1198	(cf::region::find $rmp->{region})	1783	(cf::region::find $rmp->{region}), $rmp->{custom}
		1784	)
1199	}	1785	}
1200		1786
1201	# and all this just because we cannot iterate over	1787	=item cf::map->register ($regex, $prio)
1202	# all maps in C++...
1203	sub change_all_map_light {
1204	my ($change) = @_;
1205		1788
1206	$_->change_map_light ($change)	1789	Register a handler for the map path matching the given regex at the
1207	for grep $_->outdoor, values %cf::MAP;	1790	givne priority (higher is better, built-in handlers have priority 0, the
1208	}	1791	default).
1209		1792
1210	sub try_load_header($) {	1793	=cut
		1794
		1795	sub register {
		1796	my (undef, $regex, $prio) = @_;
		1797	my $pkg = caller;
		1798
		1799	no strict;
		1800	push @{"$pkg\::ISA"}, __PACKAGE__;
		1801
		1802	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1803	}
		1804
		1805	# also paths starting with '/'
		1806	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1807
		1808	sub thawer_merge {
		1809	my ($self, $merge) = @_;
		1810
		1811	# we have to keep some variables in memory intact
		1812	local $self->{path};
		1813	local $self->{load_path};
		1814
		1815	$self->SUPER::thawer_merge ($merge);
		1816	}
		1817
		1818	sub normalise {
1211	my ($path) = @_;	1819	my ($path, $base) = @_;
		1820
		1821	$path = "$path"; # make sure its a string
		1822
		1823	$path =~ s/\.map$//;
		1824
		1825	# map plan:
		1826	#
		1827	# /! non-realised random map exit (special hack!)
		1828	# {... are special paths that are not being touched
		1829	# ?xxx/... are special absolute paths
		1830	# ?random/... random maps
		1831	# /... normal maps
		1832	# ~user/... per-player map of a specific user
		1833
		1834	$path =~ s/$PATH_SEP/\//go;
		1835
		1836	# treat it as relative path if it starts with
		1837	# something that looks reasonable
		1838	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1839	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1840
		1841	$base =~ s{[^/]+/?$}{};
		1842	$path = "$base/$path";
		1843	}
		1844
		1845	for ($path) {
		1846	redo if s{//}{/};
		1847	redo if s{/\.?/}{/};
		1848	redo if s{/[^/]+/\.\./}{/};
		1849	}
		1850
		1851	$path
		1852	}
		1853
		1854	sub new_from_path {
		1855	my (undef, $path, $base) = @_;
		1856
		1857	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1858
		1859	$path = normalise $path, $base;
		1860
		1861	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1862	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1863	my $self = bless cf::map::new, $pkg;
		1864	$self->{path} = $path; $self->path ($path);
		1865	$self->init; # pass $1 etc.
		1866	return $self;
		1867	}
		1868	}
		1869
		1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1871	()
		1872	}
		1873
		1874	sub init {
		1875	my ($self) = @_;
		1876
		1877	$self
		1878	}
		1879
		1880	sub as_string {
		1881	my ($self) = @_;
		1882
		1883	"$self->{path}"
		1884	}
		1885
		1886	# the displayed name, this is a one way mapping
		1887	sub visible_name {
		1888	&as_string
		1889	}
		1890
		1891	# the original (read-only) location
		1892	sub load_path {
		1893	my ($self) = @_;
		1894
		1895	"$MAPDIR/$self->{path}.map"
		1896	}
		1897
		1898	# the temporary/swap location
		1899	sub save_path {
		1900	my ($self) = @_;
		1901
		1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1903	"$TMPDIR/$path.map"
		1904	}
		1905
		1906	# the unique path, undef == no special unique path
		1907	sub uniq_path {
		1908	my ($self) = @_;
		1909
		1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1911	"$UNIQUEDIR/$path"
		1912	}
		1913
		1914	sub decay_objects {
		1915	my ($self) = @_;
		1916
		1917	return if $self->{deny_reset};
		1918
		1919	$self->do_decay_objects;
		1920	}
		1921
		1922	sub unlink_save {
		1923	my ($self) = @_;
		1924
		1925	utf8::encode (my $save = $self->save_path);
		1926	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1927	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1928	}
		1929
		1930	sub load_header_from($) {
		1931	my ($self, $path) = @_;
1212		1932
1213	utf8::encode $path;	1933	utf8::encode $path;
1214	aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1215	or return;	1935	or return;
1216		1936
1217	my $map = cf::map::new	1937	$self->_load_header ($f)
1218	or return;	1938	or return;
1219		1939
1220	# for better error messages only, will be overwritten	1940	local $MAP_LOADING{$self->{path}} = $self;
1221	$map->path ($path);	1941	$f->resolve_delayed_derefs;
1222		1942
1223	$map->load_header ($path)	1943	$self->{load_path} = $path;
		1944
		1945	1
		1946	}
		1947
		1948	sub load_header_orig {
		1949	my ($self) = @_;
		1950
		1951	$self->load_header_from ($self->load_path)
		1952	}
		1953
		1954	sub load_header_temp {
		1955	my ($self) = @_;
		1956
		1957	$self->load_header_from ($self->save_path)
		1958	}
		1959
		1960	sub prepare_temp {
		1961	my ($self) = @_;
		1962
		1963	$self->last_access ((delete $self->{last_access})
		1964	|| $cf::RUNTIME); #d#
		1965	# safety
		1966	$self->{instantiate_time} = $cf::RUNTIME
		1967	if $self->{instantiate_time} > $cf::RUNTIME;
		1968	}
		1969
		1970	sub prepare_orig {
		1971	my ($self) = @_;
		1972
		1973	$self->{load_original} = 1;
		1974	$self->{instantiate_time} = $cf::RUNTIME;
		1975	$self->last_access ($cf::RUNTIME);
		1976	$self->instantiate;
		1977	}
		1978
		1979	sub load_header {
		1980	my ($self) = @_;
		1981
		1982	if ($self->load_header_temp) {
		1983	$self->prepare_temp;
		1984	} else {
		1985	$self->load_header_orig
1224	or return;	1986	or return;
		1987	$self->prepare_orig;
		1988	}
1225		1989
1226	$map->{load_path} = $path;	1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
1227		1992
1228	$map	1993	$self->default_region (cf::region::find_by_path $self->{path})
		1994	unless $self->default_region;
		1995
		1996	1
1229	}	1997	}
1230		1998
1231	sub find;	1999	sub find;
1232	sub find {	2000	sub find {
1233	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1234		2002
1235	#warn "find<$path,$origin>\n";#d#
1236
1237	$path = new cf::path $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1238	my $key = $path->as_string;
1239		2004
1240	cf::lock_wait "map_find:$key";	2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1241
1242	$cf::MAP{$key} || do {
1243	my $guard = cf::lock_acquire "map_find:$key";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1244		2007
1245	# do it the slow way	2008	$cf::MAP{$path} || do {
1246	my $map = try_load_header $path->save_path;	2009	my $map = new_from_path cf::map $path
1247
1248	Coro::cede;
1249
1250	if ($map) {
1251	$map->last_access ((delete $map->{last_access})
1252	|| $cf::RUNTIME); #d#
1253	# safety
1254	$map->{instantiate_time} = $cf::RUNTIME
1255	if $map->{instantiate_time} > $cf::RUNTIME;
1256	} else {
1257	if (my $rmp = $path->random_map_params) {
1258	$map = generate_random_map $key, $rmp;
1259	} else {
1260	$map = try_load_header $path->load_path;
1261	}
1262
1263	$map or return;	2010	or return;
1264		2011
1265	$map->{load_original} = 1;
1266	$map->{instantiate_time} = $cf::RUNTIME;
1267	$map->last_access ($cf::RUNTIME);
1268	$map->instantiate;
1269
1270	# per-player maps become, after loading, normal maps
1271	$map->per_player (0) if $path->{user_rel};
1272	}
1273
1274	$map->path ($key);
1275	$map->{path} = $path;
1276	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1277		2013
1278	Coro::cede;	2014	$map->load_header
		2015	or return;
1279		2016
1280	if ($map->should_reset) {	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2018	# doing this can freeze the server in a sync job, obviously
		2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1281	$map->reset;	2022	$map->reset;
1282	undef $guard;
1283	$map = find $path	2023	return find $path;
1284	or return;
1285	}	2024	}
1286		2025
1287	$cf::MAP{$key} = $map	2026	$cf::MAP{$path} = $map
1288	}	2027	}
1289	}	2028	}
		2029
		2030	sub pre_load { }
		2031	#sub post_load { } # XS
1290		2032
1291	sub load {	2033	sub load {
1292	my ($self) = @_;	2034	my ($self) = @_;
1293		2035
		2036	local $self->{deny_reset} = 1; # loading can take a long time
		2037
1294	my $path = $self->{path};	2038	my $path = $self->{path};
		2039
		2040	{
1295	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2041	my $guard = cf::lock_acquire "map_data:$path";
1296		2042
		2043	return unless $self->valid;
1297	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1298		2045
1299	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1300		2047
1301	$self->alloc;	2048	$self->alloc;
1302	$self->load_objects ($self->{load_path}, 1)	2049
		2050	$self->pre_load;
		2051	cf::cede_to_tick;
		2052
		2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
		2055	$self->_load_objects ($f)
1303	or return;	2056	or return;
1304		2057
1305	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1306	if delete $self->{load_original};	2059	if delete $self->{load_original};
1307		2060
1308	if (my $uniq = $path->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1309	utf8::encode $uniq;	2062	utf8::encode $uniq;
1310	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1311	$self->clear_unique_items;	2065	$self->clear_unique_items;
1312	$self->load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1313	}	2069	}
1314	}	2070	}
1315		2071
1316	Coro::cede;	2072	$f->resolve_delayed_derefs;
1317		2073
		2074	cf::cede_to_tick;
1318	# now do the right thing for maps	2075	# now do the right thing for maps
1319	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1320
1321	if ($self->{path}->is_style_map) {
1322	$self->{deny_save} = 1;
1323	$self->{deny_reset} = 1;
1324	} else {
1325	$self->fix_auto_apply;
1326	$self->decay_objects;
1327	$self->update_buttons;
1328	$self->set_darkness_map;
1329	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1330	unless $self->difficulty;	2078	unless $self->difficulty;
		2079	cf::cede_to_tick;
		2080
		2081	unless ($self->{deny_activate}) {
		2082	$self->decay_objects;
		2083	$self->fix_auto_apply;
		2084	$self->update_buttons;
		2085	cf::cede_to_tick;
1331	$self->activate;	2086	$self->activate;
1332	}	2087	}
1333		2088
1334	Coro::cede;	2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
1335		2091
1336	$self->in_memory (cf::MAP_IN_MEMORY);	2092	$self->in_memory (cf::MAP_ACTIVE);
		2093	}
		2094
		2095	$self->post_load;
		2096	}
		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
		2101	sub customise_for {
		2102	my ($self, $ob) = @_;
		2103
		2104	return find "~" . $ob->name . "/" . $self->{path}
		2105	if $self->per_player;
		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
		2110	$self
		2111	}
		2112
		2113	# find and load all maps in the 3x3 area around a map
		2114	sub load_neighbours {
		2115	my ($map) = @_;
		2116
		2117	my @neigh; # diagonal neighbours
		2118
		2119	for (0 .. 3) {
		2120	my $neigh = $map->tile_path ($_)
		2121	or next;
		2122	$neigh = find $neigh, $map
		2123	or next;
		2124	$neigh->load;
		2125
		2126	push @neigh,
		2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2129	}
		2130
		2131	for (grep defined $_->[0], @neigh) {
		2132	my ($path, $origin) = @$_;
		2133	my $neigh = find $path, $origin
		2134	or next;
		2135	$neigh->load;
		2136	}
1337	}	2137	}
1338		2138
1339	sub find_sync {	2139	sub find_sync {
1340	my ($path, $origin) = @_;	2140	my ($path, $origin) = @_;
1341		2141
1342	cf::sync_job { cf::map::find $path, $origin }	2142	cf::sync_job { find $path, $origin }
1343	}	2143	}
1344		2144
1345	sub do_load_sync {	2145	sub do_load_sync {
1346	my ($map) = @_;	2146	my ($map) = @_;
1347		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
1348	cf::sync_job { $map->load };	2151	cf::sync_job { $map->load };
		2152	}
		2153
		2154	our %MAP_PREFETCH;
		2155	our $MAP_PREFETCHER = undef;
		2156
		2157	sub find_async {
		2158	my ($path, $origin, $load) = @_;
		2159
		2160	$path = normalise $path, $origin && $origin->{path};
		2161
		2162	if (my $map = $cf::MAP{$path}) {
		2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2164	}
		2165
		2166	$MAP_PREFETCH{$path} |= $load;
		2167
		2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
		2171	while (%MAP_PREFETCH) {
		2172	while (my ($k, $v) = each %MAP_PREFETCH) {
		2173	if (my $map = find $k) {
		2174	$map->load if $v;
		2175	}
		2176
		2177	delete $MAP_PREFETCH{$k};
		2178	}
		2179	}
		2180	undef $MAP_PREFETCHER;
		2181	};
		2182	$MAP_PREFETCHER->prio (6);
		2183
		2184	()
1349	}	2185	}
1350		2186
1351	sub save {	2187	sub save {
1352	my ($self) = @_;	2188	my ($self) = @_;
1353		2189
1354	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1355		2191
1356	$self->{last_save} = $cf::RUNTIME;	2192	$self->{last_save} = $cf::RUNTIME;
1357		2193
1358	return unless $self->dirty;	2194	return unless $self->dirty;
1359		2195
1360	my $save = $self->{path}->save_path; utf8::encode $save;	2196	my $save = $self->save_path; utf8::encode $save;
1361	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2197	my $uniq = $self->uniq_path; utf8::encode $uniq;
1362		2198
1363	$self->{load_path} = $save;	2199	$self->{load_path} = $save;
1364		2200
1365	return if $self->{deny_save};	2201	return if $self->{deny_save};
1366		2202
1367	local $self->{last_access} = $self->last_access;#d#	2203	local $self->{last_access} = $self->last_access;#d#
1368		2204
1369	cf::async {	2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
1370	$_->contr->save for $self->players;	2207	$_->contr->save for $self->players;
1371	};	2208	};
1372		2209
		2210	cf::get_slot 0.02;
		2211
1373	if ($uniq) {	2212	if ($uniq) {
1374	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1375	$self->save_objects ($uniq, cf::IO_UNIQUES);	2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1376	} else {	2215	} else {
1377	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2216	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1378	}	2217	}
1379	}	2218	}
1380		2219
1381	sub swap_out {	2220	sub swap_out {
1382	my ($self) = @_;	2221	my ($self) = @_;
1383		2222
1384	# save first because save cedes	2223	# save first because save cedes
1385	$self->save;	2224	$self->save;
1386		2225
1387	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1388		2227
1389	return if $self->players;	2228	return if $self->players;
1390	return if $self->in_memory != cf::MAP_IN_MEMORY;	2229	return if $self->in_memory != cf::MAP_ACTIVE;
1391	return if $self->{deny_save};	2230	return if $self->{deny_save};
1392		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
1393	$self->clear;	2236	$self->clear;
1394	$self->in_memory (cf::MAP_SWAPPED);
1395	}	2237	}
1396		2238
1397	sub reset_at {	2239	sub reset_at {
1398	my ($self) = @_;	2240	my ($self) = @_;
1399		2241
1400	# TODO: safety, remove and allow resettable per-player maps	2242	# TODO: safety, remove and allow resettable per-player maps
1401	return 1e99 if $self->{path}{user_rel};
1402	return 1e99 if $self->{deny_reset};	2243	return 1e99 if $self->{deny_reset};
1403		2244
1404	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1405	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1406		2247
…		…
1411	my ($self) = @_;	2252	my ($self) = @_;
1412		2253
1413	$self->reset_at <= $cf::RUNTIME	2254	$self->reset_at <= $cf::RUNTIME
1414	}	2255	}
1415		2256
1416	sub unlink_save {
1417	my ($self) = @_;
1418
1419	utf8::encode (my $save = $self->{path}->save_path);
1420	aioreq_pri 3; IO::AIO::aio_unlink $save;
1421	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1422	}
1423
1424	sub rename {
1425	my ($self, $new_path) = @_;
1426
1427	$self->unlink_save;
1428
1429	delete $cf::MAP{$self->path};
1430	$self->{path} = new cf::path $new_path;
1431	$self->path ($self->{path}->as_string);
1432	$cf::MAP{$self->path} = $self;
1433
1434	$self->save;
1435	}
1436
1437	sub reset {	2257	sub reset {
1438	my ($self) = @_;	2258	my ($self) = @_;
1439		2259
1440	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1441		2261
1442	return if $self->players;	2262	return if $self->players;
1443	return if $self->{path}{user_rel};#d#
1444		2263
1445	warn "resetting map ", $self->path;#d#	2264	warn "resetting map ", $self->path, "\n";
		2265
		2266	$self->in_memory (cf::MAP_SWAPPED);
		2267
		2268	# need to save uniques path
		2269	unless ($self->{deny_save}) {
		2270	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2271
		2272	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2273	if $uniq;
		2274	}
1446		2275
1447	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1448		2277
		2278	$self->deactivate;
1449	$_->clear_links_to ($self) for values %cf::MAP;	2279	$_->clear_links_to ($self) for values %cf::MAP;
		2280	$self->clear;
1450		2281
1451	$self->unlink_save;	2282	$self->unlink_save;
1452	$self->destroy;	2283	$self->destroy;
1453	}	2284	}
1454		2285
1455	my $nuke_counter = "aaaa";	2286	my $nuke_counter = "aaaa";
1456		2287
1457	sub nuke {	2288	sub nuke {
1458	my ($self) = @_;	2289	my ($self) = @_;
1459		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
		2294	delete $cf::MAP{$self->path};
		2295
		2296	$self->unlink_save;
		2297
		2298	bless $self, "cf::map";
		2299	delete $self->{deny_reset};
1460	$self->{deny_save} = 1;	2300	$self->{deny_save} = 1;
1461	$self->reset_timeout (1);	2301	$self->reset_timeout (1);
1462	$self->rename ("{nuke}/" . ($nuke_counter++));	2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2303
		2304	$cf::MAP{$self->path} = $self;
		2305	}
		2306
1463	$self->reset; # polite request, might not happen	2307	$self->reset; # polite request, might not happen
1464	}	2308	}
1465		2309
1466	sub customise_for {	2310	=item $maps = cf::map::tmp_maps
1467	my ($map, $ob) = @_;
1468		2311
1469	if ($map->per_player) {	2312	Returns an arrayref with all map paths of currently instantiated and saved
1470	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2313	maps. May block.
		2314
		2315	=cut
		2316
		2317	sub tmp_maps() {
1471	}	2318	[
1472		2319	map {
1473	$map	2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise $_
		2323	: ()
		2324	} @{ aio_readdir $TMPDIR or [] }
		2325	]
1474	}	2326	}
1475		2327
1476	sub emergency_save {	2328	=item $maps = cf::map::random_maps
1477	my $freeze_guard = cf::freeze_mainloop;
1478		2329
1479	warn "enter emergency perl save\n";	2330	Returns an arrayref with all map paths of currently instantiated and saved
		2331	random maps. May block.
1480		2332
1481	cf::sync_job {	2333	=cut
1482	warn "begin emergency player save\n";
1483	$_->save for values %cf::PLAYER;
1484	warn "end emergency player save\n";
1485		2334
1486	warn "begin emergency map save\n";	2335	sub random_maps() {
1487	$_->save for values %cf::MAP;	2336	[
1488	warn "end emergency map save\n";	2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise "?random/$_"
		2341	: ()
		2342	} @{ aio_readdir $RANDOMDIR or [] }
		2343	]
		2344	}
		2345
		2346	=item cf::map::unique_maps
		2347
		2348	Returns an arrayref of paths of all shared maps that have
		2349	instantiated unique items. May block.
		2350
		2351	=cut
		2352
		2353	sub unique_maps() {
		2354	[
		2355	map {
		2356	utf8::decode $_;
		2357	s/\.map$//; # TODO future compatibility hack
		2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2359	? ()
		2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
		2362	]
		2363	}
		2364
		2365	=item cf::map::static_maps
		2366
		2367	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2368	file in the shared directory excluding F</styles> and F</editor>). May
		2369	block.
		2370
		2371	=cut
		2372
		2373	sub static_maps() {
		2374	my @dirs = "";
		2375	my @maps;
		2376
		2377	while (@dirs) {
		2378	my $dir = shift @dirs;
		2379
		2380	next if $dir eq "/styles" || $dir eq "/editor";
		2381
		2382	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2383	or return;
		2384
		2385	for (@$files) {
		2386	s/\.map$// or next;
		2387	utf8::decode $_;
		2388	push @maps, "$dir/$_";
		2389	}
		2390
		2391	push @dirs, map "$dir/$_", @$dirs;
1489	};	2392	}
1490		2393
1491	warn "leave emergency perl save\n";	2394	\@maps
		2395	}
		2396
		2397	=back
		2398
		2399	=head3 cf::object
		2400
		2401	=cut
		2402
		2403	package cf::object;
		2404
		2405	=over 4
		2406
		2407	=item $ob->inv_recursive
		2408
		2409	Returns the inventory of the object I<and> their inventories, recursively,
		2410	but I<not> the object itself.
		2411
		2412	=cut
		2413
		2414	sub inv_recursive_;
		2415	sub inv_recursive_ {
		2416	map { $_, inv_recursive_ $_->inv } @_
		2417	}
		2418
		2419	sub inv_recursive {
		2420	inv_recursive_ inv $_[0]
		2421	}
		2422
		2423	=item $ref = $ob->ref
		2424
		2425	Creates and returns a persistent reference to an object that can be stored as a string.
		2426
		2427	=item $ob = cf::object::deref ($refstring)
		2428
		2429	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2430	even if the object actually exists. May block.
		2431
		2432	=cut
		2433
		2434	sub deref {
		2435	my ($ref) = @_;
		2436
		2437	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2438	my ($uuid, $name) = ($1, $2);
		2439	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2440	or return;
		2441	$pl->ob->uuid eq $uuid
		2442	or return;
		2443
		2444	$pl->ob
		2445	} else {
		2446	warn "$ref: cannot resolve object reference\n";
		2447	undef
		2448	}
1492	}	2449	}
1493		2450
1494	package cf;	2451	package cf;
1495		2452
1496	=back	2453	=back
1497
1498		2454
1499	=head3 cf::object::player	2455	=head3 cf::object::player
1500		2456
1501	=over 4	2457	=over 4
1502		2458
…		…
1505	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2461	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1506	can be C<undef>. Does the right thing when the player is currently in a	2462	can be C<undef>. Does the right thing when the player is currently in a
1507	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
1508		2464
1509	=cut	2465	=cut
		2466
		2467	our $SAY_CHANNEL = {
		2468	id => "say",
		2469	title => "Map",
		2470	reply => "say ",
		2471	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2472	};
		2473
		2474	our $CHAT_CHANNEL = {
		2475	id => "chat",
		2476	title => "Chat",
		2477	reply => "chat ",
		2478	tooltip => "Player chat and shouts, global to the server.",
		2479	};
1510		2480
1511	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
1512	# with dialog boxes.	2482	# with dialog boxes.
1513	#TODO: the first argument must go, split into a $npc->reply_to ( method	2483	#TODO: the first argument must go, split into a $npc->reply_to ( method
1514	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
1516		2486
1517	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1518		2488
1519	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
1520	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
1521	} else {	2492	} else {
		2493	my $pl = $self->contr;
		2494
		2495	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2496	my $dialog = $pl->{npc_dialog};
		2497	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2498
		2499	} else {
1522	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
1523	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
1524	}	2503	}
		2504	}
		2505
		2506	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	=cut
		2509
		2510	sub cf::object::send_msg {
		2511	my $pl = shift->contr
		2512	or return;
		2513	$pl->send_msg (@_);
1525	}	2514	}
1526		2515
1527	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
1528		2517
1529	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
1542		2531
1543	=item $player_object->enter_link	2532	=item $player_object->enter_link
1544		2533
1545	Freezes the player and moves him/her to a special map (C<{link}>).	2534	Freezes the player and moves him/her to a special map (C<{link}>).
1546		2535
1547	The player should be reaosnably safe there for short amounts of time. You	2536	The player should be reasonably safe there for short amounts of time (e.g.
1548	I<MUST> call C<leave_link> as soon as possible, though.	2537	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2538	though, as the palyer cannot control the character while it is on the link
		2539	map.
		2540
		2541	Will never block.
1549		2542
1550	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1551		2544
1552	Moves the player out of the specila link map onto the given map. If the	2545	Moves the player out of the special C<{link}> map onto the specified
1553	map is not valid (or omitted), the player will be moved back to the	2546	map. If the map is not valid (or omitted), the player will be moved back
1554	location he/she was before the call to C<enter_link>, or, if that fails,	2547	to the location he/she was before the call to C<enter_link>, or, if that
1555	to the emergency map position.	2548	fails, to the emergency map position.
1556		2549
1557	Might block.	2550	Might block.
1558		2551
1559	=cut	2552	=cut
		2553
		2554	sub link_map {
		2555	unless ($LINK_MAP) {
		2556	$LINK_MAP = cf::map::find "{link}"
		2557	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2558	$LINK_MAP->load;
		2559	}
		2560
		2561	$LINK_MAP
		2562	}
1560		2563
1561	sub cf::object::player::enter_link {	2564	sub cf::object::player::enter_link {
1562	my ($self) = @_;	2565	my ($self) = @_;
1563		2566
1564	$self->deactivate_recursive;	2567	$self->deactivate_recursive;
1565		2568
1566	return if $self->map == $LINK_MAP;	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1567		2570
1568	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1569	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1570		2573
1571	$self->enter_map ($LINK_MAP, 20, 20);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1572	}	2575	}
1573		2576
1574	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1575	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1576		2581
1577	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1578		2583
1579	unless ($map) {	2584	unless ($map) {
1580	# restore original map position	2585	# restore original map position
…		…
1591	($x, $y) = (-1, -1)	2596	($x, $y) = (-1, -1)
1592	unless (defined $x) && (defined $y);	2597	unless (defined $x) && (defined $y);
1593		2598
1594	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1595	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1596	if $x <=0 && $y <= 0;	2601	if $x <= 0 && $y <= 0;
1597		2602
1598	$map->load;	2603	$map->load;
		2604	$map->load_neighbours;
1599		2605
1600	return unless $self->contr->active;	2606	return unless $self->contr->active;
		2607
		2608	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2609	$self->enter_map ($map, $x, $y);
		2610
		2611	# only activate afterwards, to support waiting in hooks
1601	$self->activate_recursive;	2612	$self->activate_recursive;
1602	$self->enter_map ($map, $x, $y);
1603	}	2613	}
1604		2614
1605	cf::player->attach (	2615	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1606	on_logout => sub {
1607	my ($pl) = @_;
1608		2616
1609	# abort map switching before logout	2617	Moves the player to the given map-path and coordinates by first freezing
1610	if ($pl->ob->{_link_pos}) {	2618	her, loading and preparing them map, calling the provided $check callback
1611	cf::sync_job {	2619	that has to return the map if sucecssful, and then unfreezes the player on
1612	$pl->ob->leave_link	2620	the new (success) or old (failed) map position. In either case, $done will
1613	};	2621	be called at the end of this process.
1614	}
1615	},
1616	on_login => sub {
1617	my ($pl) = @_;
1618		2622
1619	# try to abort aborted map switching on player login :)	2623	Note that $check will be called with a potentially non-loaded map, so if
1620	# should happen only on crashes	2624	it needs a loaded map it has to call C<< ->load >>.
1621	if ($pl->ob->{_link_pos}) {
1622	$pl->ob->enter_link;
1623	(async {
1624	# we need this sleep as the login has a concurrent enter_exit running
1625	# and this sleep increases chances of the player not ending up in scorn
1626	$pl->ob->reply (undef,
1627	"There was an internal problem at your last logout, "
1628	. "the server will try to bring you to your intended destination in a second.",
1629	cf::NDI_RED);
1630	Coro::Timer::sleep 1;
1631	$pl->ob->leave_link;
1632	})->prio (2);
1633	}
1634	},
1635	);
1636		2625
1637	=item $player_object->goto ($path, $x, $y)
1638
1639	=cut	2626	=cut
		2627
		2628	our $GOTOGEN;
1640		2629
1641	sub cf::object::player::goto {	2630	sub cf::object::player::goto {
1642	my ($self, $path, $x, $y) = @_;	2631	my ($self, $path, $x, $y, $check, $done) = @_;
		2632
		2633	# do generation counting so two concurrent goto's will be executed in-order
		2634	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1643		2635
1644	$self->enter_link;	2636	$self->enter_link;
1645		2637
1646	(async {	2638	(async {
1647	$path = new cf::path $path;	2639	$Coro::current->{desc} = "player::goto $path $x $y";
1648		2640
1649	my $map = cf::map::find $path->as_string;	2641	# *tag paths override both path and x|y
		2642	if ($path =~ /^\*(.*)$/) {
		2643	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2644	my $ob = $obs[rand @obs];
		2645
		2646	# see if we actually can go there
		2647	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2648	$ob = $obs[rand @obs];
		2649	} else {
		2650	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	}
		2652	# else put us there anyways for now #d#
		2653
		2654	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2655	} else {
		2656	($path, $x, $y) = (undef, undef, undef);
		2657	}
		2658	}
		2659
		2660	my $map = eval {
		2661	my $map = defined $path ? cf::map::find $path : undef;
		2662
		2663	if ($map) {
1650	$map = $map->customise_for ($self) if $map;	2664	$map = $map->customise_for ($self);
1651		2665	$map = $check->($map) if $check && $map;
1652	# warn "entering ", $map->path, " at ($x, $y)\n"	2666	} else {
1653	# if $map;
1654
1655	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2667	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2668	}
1656		2669
		2670	$map
		2671	};
		2672
		2673	if ($@) {
		2674	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2675	LOG llevError | logBacktrace, Carp::longmess $@;
		2676	}
		2677
		2678	if ($gen == $self->{_goto_generation}) {
		2679	delete $self->{_goto_generation};
1657	$self->leave_link ($map, $x, $y);	2680	$self->leave_link ($map, $x, $y);
		2681	}
		2682
		2683	$done->() if $done;
1658	})->prio (1);	2684	})->prio (1);
1659	}	2685	}
1660		2686
1661	=item $player_object->enter_exit ($exit_object)	2687	=item $player_object->enter_exit ($exit_object)
1662		2688
…		…
1664		2690
1665	sub parse_random_map_params {	2691	sub parse_random_map_params {
1666	my ($spec) = @_;	2692	my ($spec) = @_;
1667		2693
1668	my $rmp = { # defaults	2694	my $rmp = { # defaults
1669	xsize => 10,	2695	xsize => (cf::rndm 15, 40),
1670	ysize => 10,	2696	ysize => (cf::rndm 15, 40),
		2697	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2698	#layout => string,
1671	};	2699	};
1672		2700
1673	for (split /\n/, $spec) {	2701	for (split /\n/, $spec) {
1674	my ($k, $v) = split /\s+/, $_, 2;	2702	my ($k, $v) = split /\s+/, $_, 2;
1675		2703
…		…
1687	# that depends on the exit object	2715	# that depends on the exit object
1688		2716
1689	my $rmp = parse_random_map_params $exit->msg;	2717	my $rmp = parse_random_map_params $exit->msg;
1690		2718
1691	if ($exit->map) {	2719	if ($exit->map) {
1692	$rmp->{region} = $exit->map->region_name;	2720	$rmp->{region} = $exit->region->name;
1693	$rmp->{origin_map} = $exit->map->path;	2721	$rmp->{origin_map} = $exit->map->path;
1694	$rmp->{origin_x} = $exit->x;	2722	$rmp->{origin_x} = $exit->x;
1695	$rmp->{origin_y} = $exit->y;	2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
1696	}	2726	}
1697		2727
1698	$rmp->{random_seed} ||= $exit->random_seed;	2728	$rmp->{random_seed} ||= $exit->random_seed;
1699		2729
1700	my $data = cf::to_json $rmp;	2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1701	my $md5 = Digest::MD5::md5_hex $data;	2731	my $md5 = Digest::MD5::md5_hex $data;
		2732	my $meta = "$RANDOMDIR/$md5.meta";
1702		2733
1703	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1704	aio_write $fh, 0, (length $data), $data, 0;	2735	aio_write $fh, 0, (length $data), $data, 0;
		2736	undef $fh;
		2737	aio_rename "$meta~", $meta;
1705		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
1706	$exit->slaying ("?random/$md5");	2742	$exit->slaying ("?random/$md5");
1707	$exit->msg (undef);	2743	$exit->msg (undef);
		2744	}
1708	}	2745	}
1709	}	2746	}
1710		2747
1711	sub cf::object::player::enter_exit {	2748	sub cf::object::player::enter_exit {
1712	my ($self, $exit) = @_;	2749	my ($self, $exit) = @_;
…		…
1714	return unless $self->type == cf::PLAYER;	2751	return unless $self->type == cf::PLAYER;
1715		2752
1716	$self->enter_link;	2753	$self->enter_link;
1717		2754
1718	(async {	2755	(async {
1719	$self->deactivate_recursive; # just to be sure	2756	$Coro::current->{desc} = "enter_exit";
		2757
1720	unless (eval {	2758	unless (eval {
		2759	$self->deactivate_recursive; # just to be sure
		2760
		2761	# random map handling
		2762	{
		2763	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2764
1721	prepare_random_map $exit	2765	prepare_random_map $exit
1722	if $exit->slaying eq "/!";	2766	if $exit->slaying eq "/!";
		2767	}
1723		2768
1724	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2769	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1725	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2770	my $x = $exit->stats->hp;
		2771	my $y = $exit->stats->sp;
1726		2772
		2773	$self->goto ($map, $x, $y);
		2774
		2775	# if exit is damned, update players death & WoR home-position
		2776	$self->contr->savebed ($map, $x, $y)
		2777	if $exit->flag (cf::FLAG_DAMNED);
		2778
1727	1;	2779	1
1728	}) {	2780	}) {
1729	$self->message ("Something went wrong deep within the crossfire server. "	2781	$self->message ("Something went wrong deep within the deliantra server. "
1730	. "I'll try to bring you back to the map you were before. "	2782	. "I'll try to bring you back to the map you were before. "
1731	. "Please report this to the dungeon master",	2783	. "Please report this to the dungeon master!",
1732	cf::NDI_UNIQUE | cf::NDI_RED);	2784	cf::NDI_UNIQUE | cf::NDI_RED);
1733		2785
1734	warn "ERROR in enter_exit: $@";	2786	warn "ERROR in enter_exit: $@";
1735	$self->leave_link;	2787	$self->leave_link;
1736	}	2788	}
1737	})->prio (1);	2789	})->prio (1);
…		…
1750		2802
1751	sub cf::client::send_drawinfo {	2803	sub cf::client::send_drawinfo {
1752	my ($self, $text, $flags) = @_;	2804	my ($self, $text, $flags) = @_;
1753		2805
1754	utf8::encode $text;	2806	utf8::encode $text;
1755	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2807	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1756	}	2808	}
1757		2809
		2810	=item $client->send_big_packet ($pkt)
		2811
		2812	Like C<send_packet>, but tries to compress large packets, and fragments
		2813	them as required.
		2814
		2815	=cut
		2816
		2817	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2818
		2819	sub cf::client::send_big_packet {
		2820	my ($self, $pkt) = @_;
		2821
		2822	# try lzf for large packets
		2823	$pkt = "lzf " . Compress::LZF::compress $pkt
		2824	if 1024 <= length $pkt and $self->{can_lzf};
		2825
		2826	# split very large packets
		2827	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2828	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2829	$pkt = "frag";
		2830	}
		2831
		2832	$self->send_packet ($pkt);
		2833	}
		2834
		2835	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2836
		2837	Send a drawinfo or msg packet to the client, formatting the msg for the
		2838	client if neccessary. C<$type> should be a string identifying the type of
		2839	the message, with C<log> being the default. If C<$color> is negative, suppress
		2840	the message unless the client supports the msg packet.
		2841
		2842	=cut
		2843
		2844	# non-persistent channels (usually the info channel)
		2845	our %CHANNEL = (
		2846	"c/motd" => {
		2847	id => "infobox",
		2848	title => "MOTD",
		2849	reply => undef,
		2850	tooltip => "The message of the day",
		2851	},
		2852	"c/identify" => {
		2853	id => "infobox",
		2854	title => "Identify",
		2855	reply => undef,
		2856	tooltip => "Items recently identified",
		2857	},
		2858	"c/examine" => {
		2859	id => "infobox",
		2860	title => "Examine",
		2861	reply => undef,
		2862	tooltip => "Signs and other items you examined",
		2863	},
		2864	"c/shopinfo" => {
		2865	id => "infobox",
		2866	title => "Shop Info",
		2867	reply => undef,
		2868	tooltip => "What your bargaining skill tells you about the shop",
		2869	},
		2870	"c/book" => {
		2871	id => "infobox",
		2872	title => "Book",
		2873	reply => undef,
		2874	tooltip => "The contents of a note or book",
		2875	},
		2876	"c/lookat" => {
		2877	id => "infobox",
		2878	title => "Look",
		2879	reply => undef,
		2880	tooltip => "What you saw there",
		2881	},
		2882	"c/who" => {
		2883	id => "infobox",
		2884	title => "Players",
		2885	reply => undef,
		2886	tooltip => "Shows players who are currently online",
		2887	},
		2888	"c/body" => {
		2889	id => "infobox",
		2890	title => "Body Parts",
		2891	reply => undef,
		2892	tooltip => "Shows which body parts you posess and are available",
		2893	},
		2894	"c/statistics" => {
		2895	id => "infobox",
		2896	title => "Statistics",
		2897	reply => undef,
		2898	tooltip => "Shows your primary statistics",
		2899	},
		2900	"c/skills" => {
		2901	id => "infobox",
		2902	title => "Skills",
		2903	reply => undef,
		2904	tooltip => "Shows your experience per skill and item power",
		2905	},
		2906	"c/shopitems" => {
		2907	id => "infobox",
		2908	title => "Shop Items",
		2909	reply => undef,
		2910	tooltip => "Shows the items currently for sale in this shop",
		2911	},
		2912	"c/resistances" => {
		2913	id => "infobox",
		2914	title => "Resistances",
		2915	reply => undef,
		2916	tooltip => "Shows your resistances",
		2917	},
		2918	"c/pets" => {
		2919	id => "infobox",
		2920	title => "Pets",
		2921	reply => undef,
		2922	tooltip => "Shows information abotu your pets/a specific pet",
		2923	},
		2924	"c/perceiveself" => {
		2925	id => "infobox",
		2926	title => "Perceive Self",
		2927	reply => undef,
		2928	tooltip => "You gained detailed knowledge about yourself",
		2929	},
		2930	"c/uptime" => {
		2931	id => "infobox",
		2932	title => "Uptime",
		2933	reply => undef,
		2934	tooltip => "How long the server has been running since last restart",
		2935	},
		2936	"c/mapinfo" => {
		2937	id => "infobox",
		2938	title => "Map Info",
		2939	reply => undef,
		2940	tooltip => "Information related to the maps",
		2941	},
		2942	"c/party" => {
		2943	id => "party",
		2944	title => "Party",
		2945	reply => "gsay ",
		2946	tooltip => "Messages and chat related to your party",
		2947	},
		2948	"c/death" => {
		2949	id => "death",
		2950	title => "Death",
		2951	reply => undef,
		2952	tooltip => "Reason for and more info about your most recent death",
		2953	},
		2954	"c/say" => $SAY_CHANNEL,
		2955	"c/chat" => $CHAT_CHANNEL,
		2956	);
		2957
		2958	sub cf::client::send_msg {
		2959	my ($self, $channel, $msg, $color, @extra) = @_;
		2960
		2961	$msg = $self->pl->expand_cfpod ($msg)
		2962	unless $color & cf::NDI_VERBATIM;
		2963
		2964	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2965
		2966	# check predefined channels, for the benefit of C
		2967	if ($CHANNEL{$channel}) {
		2968	$channel = $CHANNEL{$channel};
		2969
		2970	$self->ext_msg (channel_info => $channel);
		2971	$channel = $channel->{id};
		2972
		2973	} elsif (ref $channel) {
		2974	# send meta info to client, if not yet sent
		2975	unless (exists $self->{channel}{$channel->{id}}) {
		2976	$self->{channel}{$channel->{id}} = $channel;
		2977	$self->ext_msg (channel_info => $channel);
		2978	}
		2979
		2980	$channel = $channel->{id};
		2981	}
		2982
		2983	return unless @extra || length $msg;
		2984
		2985	# default colour, mask it out
		2986	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2987	if $color & cf::NDI_DEF;
		2988
		2989	my $pkt = "msg "
		2990	. $self->{json_coder}->encode (
		2991	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2992	);
		2993
		2994	$self->send_big_packet ($pkt);
		2995	}
		2996
		2997	=item $client->ext_msg ($type, @msg)
		2998
		2999	Sends an ext event to the client.
		3000
		3001	=cut
		3002
		3003	sub cf::client::ext_msg($$@) {
		3004	my ($self, $type, @msg) = @_;
		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
		3009	push @msg, msgtype => "event_$type";
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
		3013
		3014	=item $client->ext_reply ($msgid, @msg)
		3015
		3016	Sends an ext reply to the client.
		3017
		3018	=cut
		3019
		3020	sub cf::client::ext_reply($$@) {
		3021	my ($self, $id, @msg) = @_;
		3022
		3023	if ($self->extcmd == 2) {
		3024	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3025	} elsif ($self->extcmd == 1) {
		3026	#TODO: version 1, remove
		3027	unshift @msg, msgtype => "reply", msgid => $id;
		3028	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3029	}
		3030	}
1758		3031
1759	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
1760		3033
1761	Queues a query to the client, calling the given callback with	3034	Queues a query to the client, calling the given callback with
1762	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3035	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1763	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3036	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1764		3037
1765	Queries can fail, so check the return code. Or don't, as queries will become	3038	Queries can fail, so check the return code. Or don't, as queries will
1766	reliable at some point in the future.	3039	become reliable at some point in the future.
1767		3040
1768	=cut	3041	=cut
1769		3042
1770	sub cf::client::query {	3043	sub cf::client::query {
1771	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
1779	utf8::encode $text;	3052	utf8::encode $text;
1780	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1781		3054
1782	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
1783	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
1784	}	3059	}
1785		3060
1786	cf::client->attach (	3061	cf::client->attach (
		3062	on_connect => sub {
		3063	my ($ns) = @_;
		3064
		3065	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3066	},
1787	on_reply => sub {	3067	on_reply => sub {
1788	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
1789		3069
1790	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
1791	# get handled first	3071	# get handled first
1792	my $queue = delete $ns->{query_queue}	3072	my $queue = delete $ns->{query_queue}
1793	or return; # be conservative, not sure how that can happen, but we saw a crash here	3073	or return; # be conservative, not sure how that can happen, but we saw a crash here
1794		3074
1795	(shift @$queue)->[1]->($msg);	3075	(shift @$queue)->[1]->($msg);
		3076	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1796		3077
1797	push @{ $ns->{query_queue} }, @$queue;	3078	push @{ $ns->{query_queue} }, @$queue;
1798		3079
1799	if (@{ $ns->{query_queue} } == @$queue) {	3080	if (@{ $ns->{query_queue} } == @$queue) {
1800	if (@$queue) {	3081	if (@$queue) {
…		…
1802	} else {	3083	} else {
1803	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1804	}	3085	}
1805	}	3086	}
1806	},	3087	},
		3088	on_exticmd => sub {
		3089	my ($ns, $buf) = @_;
		3090
		3091	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3092
		3093	if (ref $msg) {
		3094	my ($type, $reply, @payload) =
		3095	"ARRAY" eq ref $msg
		3096	? @$msg
		3097	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3098
		3099	my @reply;
		3100
		3101	if (my $cb = $EXTICMD{$type}) {
		3102	@reply = $cb->($ns, @payload);
		3103	}
		3104
		3105	$ns->ext_reply ($reply, @reply)
		3106	if $reply;
		3107
		3108	} else {
		3109	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3110	}
		3111
		3112	cf::override;
		3113	},
1807	);	3114	);
1808		3115
1809	=item $client->async (\&cb)	3116	=item $client->async (\&cb)
1810		3117
1811	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
…		…
1852	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
1853	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
1854		3161
1855	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
1856		3163
1857	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3164	$safe->permit_only (Opcode::opset qw(
		3165	:base_core :base_mem :base_orig :base_math :base_loop
		3166	grepstart grepwhile mapstart mapwhile
		3167	sort time
		3168	));
1858		3169
1859	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
1860		3171
1861	=pod	3172	=pod
1862		3173
1863	The following fucntions and emthods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
1864		3175
1865	cf::object contr pay_amount pay_player map	3176	cf::object
		3177	contr pay_amount pay_player map x y force_find force_add destroy
		3178	insert remove name archname title slaying race decrease split
		3179	value
		3180
1866	cf::object::player player	3181	cf::object::player
1867	cf::player peaceful	3182	player
1868	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
1869		3189
1870	=cut	3190	=cut
1871		3191
1872	for (	3192	for (
1873	["cf::object" => qw(contr pay_amount pay_player map)],	3193	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3194	insert remove inv nrof name archname title slaying race
		3195	decrease split destroy change_exp value msg lore send_msg)],
1874	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
1875	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
1876	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
1877	) {	3199	) {
1878	no strict 'refs';	3200	no strict 'refs';
1879	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
1880	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1898		3220
1899	my $qcode = $code;	3221	my $qcode = $code;
1900	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1901	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
1902		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
1903	local $_;	3228	local $_;
1904	local @safe::cf::_safe_eval_args = values %vars;
1905		3229
1906	my $eval =	3230	my $eval =
1907	"do {\n"	3231	"do {\n"
1908	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1909	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
1910	. $code	3234	. $code
1911	. "\n}"	3235	. "\n}"
1912	;	3236	;
1913		3237
		3238	if ($CFG{safe_eval}) {
1914	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
1915	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1916	sub_generation_inc;	3242	sub_generation_inc;
		3243	} else {
		3244	local @cf::_safe_eval_args = values %vars;
		3245	@res = wantarray ? eval eval : scalar eval $eval;
		3246	}
1917		3247
1918	if ($@) {	3248	if ($@) {
1919	warn "$@";	3249	warn "$@";
1920	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
1921	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1940	=cut	3270	=cut
1941		3271
1942	sub register_script_function {	3272	sub register_script_function {
1943	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
1944		3274
1945	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
1946	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
1947	}	3277	}
1948		3278
1949	=back	3279	=back
1950		3280
1951	=cut	3281	=cut
1952		3282
1953	#############################################################################	3283	#############################################################################
		3284	# the server's init and main functions
1954		3285
1955	=head2 EXTENSION DATABASE SUPPORT	3286	sub load_facedata($) {
		3287	my ($path) = @_;
1956		3288
1957	Crossfire maintains a very simple database for extension use. It can	3289	# HACK to clear player env face cache, we need some signal framework
1958	currently store anything that can be serialised using Storable, which	3290	# for this (global event?)
1959	excludes objects.	3291	%ext::player_env::MUSIC_FACE_CACHE = ();
1960		3292
1961	The parameter C<$family> should best start with the name of the extension	3293	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1962	using it, it should be unique.
1963		3294
1964	=over 4	3295	warn "loading facedata from $path\n";
1965		3296
1966	=item $hashref = cf::db_get $family	3297	my $facedata;
		3298	0 < aio_load $path, $facedata
		3299	or die "$path: $!";
1967		3300
1968	Return a hashref for use by the extension C<$family>, which can be	3301	$facedata = Coro::Storable::thaw $facedata;
1969	modified. After modifications, you have to call C<cf::db_dirty> or
1970	C<cf::db_sync>.
1971		3302
1972	=item $value = cf::db_get $family => $key	3303	$facedata->{version} == 2
		3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
1973		3305
1974	Returns a single value from the database	3306	# patch in the exptable
1975		3307	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1976	=item cf::db_put $family => $hashref	3308	$facedata->{resource}{"res/exp_table"} = {
1977		3309	type => FT_RSRC,
1978	Stores the given family hashref into the database. Updates are delayed, if	3310	data => $exp_table,
1979	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3311	hash => (Digest::MD5::md5 $exp_table),
1980
1981	=item cf::db_put $family => $key => $value
1982
1983	Stores the given C<$value> in the family hash. Updates are delayed, if you
1984	want the data to be synced to disk immediately, use C<cf::db_sync>.
1985
1986	=item cf::db_dirty
1987
1988	Marks the database as dirty, to be updated at a later time.
1989
1990	=item cf::db_sync
1991
1992	Immediately write the database to disk I<if it is dirty>.
1993
1994	=cut
1995
1996	our $DB;
1997
1998	{
1999	my $path = cf::localdir . "/database.pst";
2000
2001	sub db_load() {
2002	$DB = stat $path ? Storable::retrieve $path : { };
2003	}
2004
2005	my $pid;
2006
2007	sub db_save() {
2008	waitpid $pid, 0 if $pid;
2009	if (0 == ($pid = fork)) {
2010	$DB->{_meta}{version} = 1;
2011	Storable::nstore $DB, "$path~";
2012	rename "$path~", $path;
2013	cf::_exit 0 if defined $pid;
2014	}
2015	}
2016
2017	my $dirty;
2018
2019	sub db_sync() {
2020	db_save if $dirty;
2021	undef $dirty;
2022	}
2023
2024	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2025	db_sync;
2026	});	3312	};
		3313	cf::cede_to_tick;
2027		3314
2028	sub db_dirty() {
2029	$dirty = 1;
2030	$idle->start;
2031	}	3315	{
		3316	my $faces = $facedata->{faceinfo};
2032		3317
2033	sub db_get($;$) {	3318	while (my ($face, $info) = each %$faces) {
2034	@_ >= 2	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2035	? $DB->{$_[0]}{$_[1]}
2036	: ($DB->{$_[0]} ||= { })
2037	}
2038		3320
2039	sub db_put($$;$) {	3321	cf::face::set_visibility $idx, $info->{visibility};
2040	if (@_ >= 3) {	3322	cf::face::set_magicmap $idx, $info->{magicmap};
2041	$DB->{$_[0]}{$_[1]} = $_[2];	3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2042	} else {	3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2043	$DB->{$_[0]} = $_[1];
2044	}
2045	db_dirty;
2046	}
2047		3325
2048	cf::global->attach (	3326	cf::cede_to_tick;
2049	prio => 10000,
2050	on_cleanup => sub {
2051	db_sync;
2052	},	3327	}
2053	);
2054	}
2055		3328
2056	#############################################################################	3329	while (my ($face, $info) = each %$faces) {
2057	# the server's main()	3330	next unless $info->{smooth};
2058		3331
2059	sub cfg_load {	3332	my $idx = cf::face::find $face
		3333	or next;
		3334
		3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
		3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3338	} else {
		3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3340	}
		3341
		3342	cf::cede_to_tick;
		3343	}
		3344	}
		3345
		3346	{
		3347	my $anims = $facedata->{animinfo};
		3348
		3349	while (my ($anim, $info) = each %$anims) {
		3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3351	cf::cede_to_tick;
		3352	}
		3353
		3354	cf::anim::invalidate_all; # d'oh
		3355	}
		3356
		3357	{
		3358	my $res = $facedata->{resource};
		3359
		3360	while (my ($name, $info) = each %$res) {
		3361	if (defined $info->{type}) {
		3362	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3363
		3364	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3365	cf::face::set_type $idx, $info->{type};
		3366	} else {
		3367	$RESOURCE{$name} = $info;
		3368	}
		3369
		3370	cf::cede_to_tick;
		3371	}
		3372	}
		3373
		3374	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3375
		3376	1
		3377	}
		3378
		3379	cf::global->attach (on_resource_update => sub {
		3380	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3381	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3382
		3383	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3384	my $sound = $soundconf->{compat}[$_]
		3385	or next;
		3386
		3387	my $face = cf::face::find "sound/$sound->[1]";
		3388	cf::sound::set $sound->[0] => $face;
		3389	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3390	}
		3391
		3392	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3393	my $face = cf::face::find "sound/$v";
		3394	cf::sound::set $k => $face;
		3395	}
		3396	}
		3397	});
		3398
		3399	register_exticmd fx_want => sub {
		3400	my ($ns, $want) = @_;
		3401
		3402	while (my ($k, $v) = each %$want) {
		3403	$ns->fx_want ($k, $v);
		3404	}
		3405	};
		3406
		3407	sub load_resource_file($) {
		3408	my $guard = lock_acquire "load_resource_file";
		3409
		3410	my $status = load_resource_file_ $_[0];
		3411	get_slot 0.1, 100;
		3412	cf::arch::commit_load;
		3413
		3414	$status
		3415	}
		3416
		3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
		3422	load_resource_file "$MAPDIR/regions"
		3423	or die "unable to load regions file\n";
		3424
		3425	for (cf::region::list) {
		3426	$_->{match} = qr/$_->{match}/
		3427	if exists $_->{match};
		3428	}
		3429	}
		3430
		3431	sub reload_facedata {
		3432	load_facedata "$DATADIR/facedata"
		3433	or die "unable to load facedata\n";
		3434	}
		3435
		3436	sub reload_archetypes {
		3437	load_resource_file "$DATADIR/archetypes"
		3438	or die "unable to load archetypes\n";
		3439	}
		3440
		3441	sub reload_treasures {
		3442	load_resource_file "$DATADIR/treasures"
		3443	or die "unable to load treasurelists\n";
		3444	}
		3445
		3446	sub reload_resources {
		3447	warn "reloading resource files...\n";
		3448
		3449	reload_facedata;
		3450	reload_archetypes;
		3451	reload_regions;
		3452	reload_treasures;
		3453
		3454	warn "finished reloading resource files\n";
		3455	}
		3456
		3457	sub reload_config {
		3458	warn "reloading config file...\n";
		3459
2060	open my $fh, "<:utf8", cf::confdir . "/config"	3460	open my $fh, "<:utf8", "$CONFDIR/config"
2061	or return;	3461	or return;
2062		3462
2063	local $/;	3463	local $/;
2064	*CFG = YAML::Syck::Load <$fh>;	3464	*CFG = YAML::XS::Load scalar <$fh>;
2065		3465
2066	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2067		3467
2068	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3468	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2069	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3469	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2070		3470
2071	if (exists $CFG{mlockall}) {	3471	if (exists $CFG{mlockall}) {
2072	eval {	3472	eval {
2073	$CFG{mlockall} ? &mlockall : &munlockall	3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2074	and die "WARNING: m(un)lockall failed: $!\n";	3474	and die "WARNING: m(un)lockall failed: $!\n";
2075	};	3475	};
2076	warn $@ if $@;	3476	warn $@ if $@;
2077	}	3477	}
		3478
		3479	warn "finished reloading resource files\n";
		3480	}
		3481
		3482	sub pidfile() {
		3483	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3484	or die "$PIDFILE: $!";
		3485	flock $fh, &Fcntl::LOCK_EX
		3486	or die "$PIDFILE: flock: $!";
		3487	$fh
		3488	}
		3489
		3490	# make sure only one server instance is running at any one time
		3491	sub atomic {
		3492	my $fh = pidfile;
		3493
		3494	my $pid = <$fh>;
		3495	kill 9, $pid if $pid > 0;
		3496
		3497	seek $fh, 0, 0;
		3498	print $fh $$;
		3499	}
		3500
		3501	sub main_loop {
		3502	warn "EV::loop starting\n";
		3503	if (1) {
		3504	EV::loop;
		3505	}
		3506	warn "EV::loop returned\n";
		3507	goto &main_loop unless $REALLY_UNLOOP;
2078	}	3508	}
2079		3509
2080	sub main {	3510	sub main {
		3511	cf::init_globals; # initialise logging
		3512
		3513	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3514	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3515	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3516	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3517
		3518	cf::init_experience;
		3519	cf::init_anim;
		3520	cf::init_attackmess;
		3521	cf::init_dynamic;
		3522
		3523	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3524
2081	# we must not ever block the main coroutine	3525	# we must not ever block the main coroutine
2082	local $Coro::idle = sub {	3526	local $Coro::idle = sub {
2083	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3527	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2084	async { Event::one_event };	3528	(async {
		3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
		3531	})->prio (Coro::PRIO_MAX);
2085	};	3532	};
2086		3533
2087	cfg_load;	3534	evthread_start IO::AIO::poll_fileno;
2088	db_load;	3535
		3536	cf::sync_job {
		3537	cf::load_settings;
		3538	cf::load_materials;
		3539
		3540	reload_resources;
		3541	reload_config;
		3542	db_init;
		3543
		3544	cf::init_uuid;
		3545	cf::init_signals;
		3546	cf::init_commands;
		3547	cf::init_skills;
		3548
		3549	cf::init_beforeplay;
		3550
		3551	atomic;
		3552
2089	load_extensions;	3553	load_extensions;
2090	Event::loop;	3554
		3555	utime time, time, $RUNTIMEFILE;
		3556
		3557	# no (long-running) fork's whatsoever before this point(!)
		3558	use POSIX ();
		3559	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3560
		3561	(pop @POST_INIT)->(0) while @POST_INIT;
		3562	};
		3563
		3564	main_loop;
2091	}	3565	}
2092		3566
2093	#############################################################################	3567	#############################################################################
2094	# initialisation	3568	# initialisation and cleanup
2095		3569
		3570	# install some emergency cleanup handlers
		3571	BEGIN {
		3572	our %SIGWATCHER = ();
		3573	for my $signal (qw(INT HUP TERM)) {
		3574	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3575	cf::cleanup "SIG$signal";
		3576	};
		3577	}
		3578	}
		3579
		3580	sub write_runtime_sync {
		3581	my $t0 = EV::time;
		3582
		3583	# first touch the runtime file to show we are still running:
		3584	# the fsync below can take a very very long time.
		3585
		3586	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3587
		3588	my $guard = cf::lock_acquire "write_runtime";
		3589
		3590	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3591	or return;
		3592
		3593	my $value = $cf::RUNTIME + 90 + 10;
		3594	# 10 is the runtime save interval, for a monotonic clock
		3595	# 60 allows for the watchdog to kill the server.
		3596
		3597	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3598	and return;
		3599
		3600	# always fsync - this file is important
		3601	aio_fsync $fh
		3602	and return;
		3603
		3604	# touch it again to show we are up-to-date
		3605	aio_utime $fh, undef, undef;
		3606
		3607	close $fh
		3608	or return;
		3609
		3610	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3611	and return;
		3612
		3613	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3614
		3615	1
		3616	}
		3617
		3618	our $uuid_lock;
		3619	our $uuid_skip;
		3620
		3621	sub write_uuid_sync($) {
		3622	$uuid_skip ||= $_[0];
		3623
		3624	return if $uuid_lock;
		3625	local $uuid_lock = 1;
		3626
		3627	my $uuid = "$LOCALDIR/uuid";
		3628
		3629	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3630	or return;
		3631
		3632	my $value = uuid_seq uuid_cur;
		3633
		3634	unless ($value) {
		3635	warn "cowardly refusing to write zero uuid value!\n";
		3636	return;
		3637	}
		3638
		3639	my $value = uuid_str $value + $uuid_skip;
		3640	$uuid_skip = 0;
		3641
		3642	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3643	and return;
		3644
		3645	# always fsync - this file is important
		3646	aio_fsync $fh
		3647	and return;
		3648
		3649	close $fh
		3650	or return;
		3651
		3652	aio_rename "$uuid~", $uuid
		3653	and return;
		3654
		3655	warn "uuid file written ($value).\n";
		3656
		3657	1
		3658
		3659	}
		3660
		3661	sub write_uuid($$) {
		3662	my ($skip, $sync) = @_;
		3663
		3664	$sync ? write_uuid_sync $skip
		3665	: async { write_uuid_sync $skip };
		3666	}
		3667
		3668	sub emergency_save() {
		3669	my $freeze_guard = cf::freeze_mainloop;
		3670
		3671	warn "emergency_perl_save: enter\n";
		3672
		3673	cf::sync_job {
		3674	# this is a trade-off: we want to be very quick here, so
		3675	# save all maps without fsync, and later call a global sync
		3676	# (which in turn might be very very slow)
		3677	local $USE_FSYNC = 0;
		3678
		3679	# use a peculiar iteration method to avoid tripping on perl
		3680	# refcount bugs in for. also avoids problems with players
		3681	# and maps saved/destroyed asynchronously.
		3682	warn "emergency_perl_save: begin player save\n";
		3683	for my $login (keys %cf::PLAYER) {
		3684	my $pl = $cf::PLAYER{$login} or next;
		3685	$pl->valid or next;
		3686	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3687	$pl->save;
		3688	}
		3689	warn "emergency_perl_save: end player save\n";
		3690
		3691	warn "emergency_perl_save: begin map save\n";
		3692	for my $path (keys %cf::MAP) {
		3693	my $map = $cf::MAP{$path} or next;
		3694	$map->valid or next;
		3695	$map->save;
		3696	}
		3697	warn "emergency_perl_save: end map save\n";
		3698
		3699	warn "emergency_perl_save: begin database checkpoint\n";
		3700	BDB::db_env_txn_checkpoint $DB_ENV;
		3701	warn "emergency_perl_save: end database checkpoint\n";
		3702
		3703	warn "emergency_perl_save: begin write uuid\n";
		3704	write_uuid_sync 1;
		3705	warn "emergency_perl_save: end write uuid\n";
		3706	};
		3707
		3708	warn "emergency_perl_save: starting sync()\n";
		3709	IO::AIO::aio_sync sub {
		3710	warn "emergency_perl_save: finished sync()\n";
		3711	};
		3712
		3713	warn "emergency_perl_save: leave\n";
		3714	}
		3715
		3716	sub post_cleanup {
		3717	my ($make_core) = @_;
		3718
		3719	warn Carp::longmess "post_cleanup backtrace"
		3720	if $make_core;
		3721
		3722	my $fh = pidfile;
		3723	unlink $PIDFILE if <$fh> == $$;
		3724	}
		3725
		3726	# a safer delete_package, copied from Symbol
		3727	sub clear_package($) {
		3728	my $pkg = shift;
		3729
		3730	# expand to full symbol table name if needed
		3731	unless ($pkg =~ /^main::.*::$/) {
		3732	$pkg = "main$pkg" if $pkg =~ /^::/;
		3733	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3734	$pkg .= '::' unless $pkg =~ /::$/;
		3735	}
		3736
		3737	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3738	my $stem_symtab = *{$stem}{HASH};
		3739
		3740	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3741	or return;
		3742
		3743	# clear all symbols
		3744	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3745	for my $name (keys %$leaf_symtab) {
		3746	_gv_clear *{"$pkg$name"};
		3747	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3748	}
		3749	warn "cleared package $pkg\n";#d#
		3750	}
		3751
2096	sub reload() {	3752	sub do_reload_perl() {
2097	# can/must only be called in main	3753	# can/must only be called in main
2098	if ($Coro::current != $Coro::main) {	3754	if ($Coro::current != $Coro::main) {
2099	warn "can only reload from main coroutine\n";	3755	warn "can only reload from main coroutine";
2100	return;	3756	return;
2101	}	3757	}
2102		3758
		3759	return if $RELOAD++;
		3760
		3761	my $t1 = EV::time;
		3762
		3763	while ($RELOAD) {
2103	warn "reloading...";	3764	warn "reloading...";
2104		3765
2105	my $guard = freeze_mainloop;	3766	warn "entering sync_job";
		3767
		3768	cf::sync_job {
		3769	cf::write_runtime_sync; # external watchdog should not bark
2106	cf::emergency_save;	3770	cf::emergency_save;
		3771	cf::write_runtime_sync; # external watchdog should not bark
2107		3772
2108	eval {	3773	warn "syncing database to disk";
		3774	BDB::db_env_txn_checkpoint $DB_ENV;
		3775
2109	# if anything goes wrong in here, we should simply crash as we already saved	3776	# if anything goes wrong in here, we should simply crash as we already saved
2110		3777
2111	# cancel all watchers	3778	warn "flushing outstanding aio requests";
2112	for (Event::all_watchers) {	3779	while (IO::AIO::nreqs || BDB::nreqs) {
2113	$_->cancel if $_->data & WF_AUTOCANCEL;	3780	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2114	}
2115
2116	# cancel all extension coros
2117	$_->cancel for values %EXT_CORO;
2118	%EXT_CORO = ();
2119
2120	# unload all extensions
2121	for (@exts) {
2122	warn "unloading <$_>";
2123	unload_extension $_;
2124	}
2125
2126	# unload all modules loaded from $LIBDIR
2127	while (my ($k, $v) = each %INC) {
2128	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2129
2130	warn "removing <$k>";
2131	delete $INC{$k};
2132
2133	$k =~ s/\.pm$//;
2134	$k =~ s/\//::/g;
2135
2136	if (my $cb = $k->can ("unload_module")) {
2137	$cb->();
2138	}	3781	}
2139		3782
2140	Symbol::delete_package $k;	3783	warn "cancelling all extension coros";
		3784	$_->cancel for values %EXT_CORO;
		3785	%EXT_CORO = ();
		3786
		3787	warn "removing commands";
		3788	%COMMAND = ();
		3789
		3790	warn "removing ext/exti commands";
		3791	%EXTCMD = ();
		3792	%EXTICMD = ();
		3793
		3794	warn "unloading/nuking all extensions";
		3795	for my $pkg (@EXTS) {
		3796	warn "... unloading $pkg";
		3797
		3798	if (my $cb = $pkg->can ("unload")) {
		3799	eval {
		3800	$cb->($pkg);
		3801	1
		3802	} or warn "$pkg unloaded, but with errors: $@";
		3803	}
		3804
		3805	warn "... clearing $pkg";
		3806	clear_package $pkg;
2141	}	3807	}
2142		3808
2143	# sync database to disk	3809	warn "unloading all perl modules loaded from $LIBDIR";
2144	cf::db_sync;	3810	while (my ($k, $v) = each %INC) {
2145	IO::AIO::flush;	3811	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2146		3812
		3813	warn "... unloading $k";
		3814	delete $INC{$k};
		3815
		3816	$k =~ s/\.pm$//;
		3817	$k =~ s/\//::/g;
		3818
		3819	if (my $cb = $k->can ("unload_module")) {
		3820	$cb->();
		3821	}
		3822
		3823	clear_package $k;
		3824	}
		3825
2147	# get rid of safe::, as good as possible	3826	warn "getting rid of safe::, as good as possible";
2148	Symbol::delete_package "safe::$_"	3827	clear_package "safe::$_"
2149	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3828	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2150		3829
2151	# remove register_script_function callbacks	3830	warn "unloading cf.pm \"a bit\"";
2152	# TODO
2153
2154	# unload cf.pm "a bit"
2155	delete $INC{"cf.pm"};	3831	delete $INC{"cf.pm"};
		3832	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2156		3833
2157	# don't, removes xs symbols, too,	3834	# don't, removes xs symbols, too,
2158	# and global variables created in xs	3835	# and global variables created in xs
2159	#Symbol::delete_package __PACKAGE__;	3836	#clear_package __PACKAGE__;
2160		3837
2161	# reload cf.pm	3838	warn "unload completed, starting to reload now";
		3839
2162	warn "reloading cf.pm";	3840	warn "reloading cf.pm";
2163	require cf;	3841	require cf;
2164	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3842	cf::_connect_to_perl_1;
2165		3843
2166	# load config and database again	3844	warn "loading config and database again";
2167	cf::cfg_load;	3845	cf::reload_config;
2168	cf::db_load;
2169		3846
2170	# load extensions
2171	warn "load extensions";	3847	warn "loading extensions";
2172	cf::load_extensions;	3848	cf::load_extensions;
2173		3849
2174	# reattach attachments to objects	3850	if ($REATTACH_ON_RELOAD) {
2175	warn "reattach";	3851	warn "reattaching attachments to objects/players";
2176	_global_reattach;	3852	_global_reattach; # objects, sockets
		3853	warn "reattaching attachments to maps";
2177	reattach $_ for values %MAP;	3854	reattach $_ for values %MAP;
		3855	warn "reattaching attachments to players";
		3856	reattach $_ for values %PLAYER;
		3857	}
		3858
		3859	warn "running post_init jobs";
		3860	(pop @POST_INIT)->(1) while @POST_INIT;
		3861
		3862	warn "leaving sync_job";
		3863
		3864	1
		3865	} or do {
		3866	warn $@;
		3867	cf::cleanup "error while reloading, exiting.";
		3868	};
		3869
		3870	warn "reloaded";
		3871	--$RELOAD;
		3872	}
		3873
		3874	$t1 = EV::time - $t1;
		3875	warn "reload completed in ${t1}s\n";
		3876	};
		3877
		3878	our $RELOAD_WATCHER; # used only during reload
		3879
		3880	sub reload_perl() {
		3881	# doing reload synchronously and two reloads happen back-to-back,
		3882	# coro crashes during coro_state_free->destroy here.
		3883
		3884	$RELOAD_WATCHER ||= cf::async {
		3885	Coro::AIO::aio_wait cache_extensions;
		3886
		3887	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3888	do_reload_perl;
		3889	undef $RELOAD_WATCHER;
		3890	};
2178	};	3891	};
2179
2180	if ($@) {
2181	warn $@;
2182	warn "error while reloading, exiting.";
2183	exit 1;
2184	}
2185
2186	warn "reloaded successfully";
2187	};
2188
2189	#############################################################################
2190
2191	unless ($LINK_MAP) {
2192	$LINK_MAP = cf::map::new;
2193
2194	$LINK_MAP->width (41);
2195	$LINK_MAP->height (41);
2196	$LINK_MAP->alloc;
2197	$LINK_MAP->path ("{link}");
2198	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2199	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2200
2201	# dirty hack because... archetypes are not yet loaded
2202	Event->timer (
2203	after => 10,
2204	cb => sub {
2205	$_[0]->w->cancel;
2206
2207	# provide some exits "home"
2208	my $exit = cf::object::new "exit";
2209
2210	$exit->slaying ($EMERGENCY_POSITION->[0]);
2211	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2212	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2213
2214	$LINK_MAP->insert ($exit->clone, 19, 19);
2215	$LINK_MAP->insert ($exit->clone, 19, 20);
2216	$LINK_MAP->insert ($exit->clone, 19, 21);
2217	$LINK_MAP->insert ($exit->clone, 20, 19);
2218	$LINK_MAP->insert ($exit->clone, 20, 21);
2219	$LINK_MAP->insert ($exit->clone, 21, 19);
2220	$LINK_MAP->insert ($exit->clone, 21, 20);
2221	$LINK_MAP->insert ($exit->clone, 21, 21);
2222
2223	$exit->destroy;
2224	});
2225
2226	$LINK_MAP->{deny_save} = 1;
2227	$LINK_MAP->{deny_reset} = 1;
2228
2229	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2230	}	3892	}
2231
2232	register "<global>", __PACKAGE__;
2233		3893
2234	register_command "reload" => sub {	3894	register_command "reload" => sub {
2235	my ($who, $arg) = @_;	3895	my ($who, $arg) = @_;
2236		3896
2237	if ($who->flag (FLAG_WIZ)) {	3897	if ($who->flag (FLAG_WIZ)) {
2238	$who->message ("start of reload.");
2239	reload;
2240	$who->message ("end of reload.");	3898	$who->message ("reloading server.");
		3899	async {
		3900	$Coro::current->{desc} = "perl_reload";
		3901	reload_perl;
		3902	};
2241	}	3903	}
2242	};	3904	};
2243		3905
2244	unshift @INC, $LIBDIR;	3906	unshift @INC, $LIBDIR;
2245		3907
2246	$TICK_WATCHER = Event->timer (	3908	my $bug_warning = 0;
2247	reentrant => 0,	3909
2248	prio => 0,	3910	our @WAIT_FOR_TICK;
2249	at => $NEXT_TICK || $TICK,	3911	our @WAIT_FOR_TICK_BEGIN;
2250	data => WF_AUTOCANCEL,	3912
2251	cb => sub {	3913	sub wait_for_tick {
		3914	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3915
		3916	my $signal = new Coro::Signal;
		3917	push @WAIT_FOR_TICK, $signal;
		3918	$signal->wait;
		3919	}
		3920
		3921	sub wait_for_tick_begin {
		3922	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3923
		3924	my $signal = new Coro::Signal;
		3925	push @WAIT_FOR_TICK_BEGIN, $signal;
		3926	$signal->wait;
		3927	}
		3928
		3929	sub tick {
		3930	if ($Coro::current != $Coro::main) {
		3931	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3932	unless ++$bug_warning > 10;
		3933	return;
		3934	}
		3935
2252	cf::server_tick; # one server iteration	3936	cf::server_tick; # one server iteration
2253	$RUNTIME += $TICK;
2254	$NEXT_TICK += $TICK;
2255		3937
2256	# if we are delayed by four ticks or more, skip them all	3938	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2257	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2258		3939
2259	$TICK_WATCHER->at ($NEXT_TICK);	3940	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2260	$TICK_WATCHER->start;	3941	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2261	},	3942	Coro::async_pool {
2262	);	3943	$Coro::current->{desc} = "runtime saver";
2263
2264	IO::AIO::max_poll_time $TICK * 0.2;
2265
2266	Event->io (
2267	fd => IO::AIO::poll_fileno,
2268	poll => 'r',
2269	prio => 5,
2270	data => WF_AUTOCANCEL,
2271	cb => \&IO::AIO::poll_cb,
2272	);
2273
2274	Event->timer (
2275	data => WF_AUTOCANCEL,
2276	after => 0,
2277	interval => 10,
2278	cb => sub {
2279	(Coro::unblock_sub {
2280	write_runtime	3944	write_runtime_sync
2281	or warn "ERROR: unable to write runtime file: $!";	3945	or warn "ERROR: unable to write runtime file: $!";
2282	})->();	3946	};
2283	},	3947	}
2284	);	3948
		3949	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3950	$sig->send;
		3951	}
		3952	while (my $sig = shift @WAIT_FOR_TICK) {
		3953	$sig->send;
		3954	}
		3955
		3956	$LOAD = ($NOW - $TICK_START) / $TICK;
		3957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3958
		3959	if (0) {
		3960	if ($NEXT_TICK) {
		3961	my $jitter = $TICK_START - $NEXT_TICK;
		3962	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3963	warn "jitter $JITTER\n";#d#
		3964	}
		3965	}
		3966	}
		3967
		3968	{
		3969	# configure BDB
		3970
		3971	BDB::min_parallel 16;
		3972	BDB::max_poll_reqs $TICK * 0.1;
		3973	$AnyEvent::BDB::WATCHER->priority (1);
		3974
		3975	unless ($DB_ENV) {
		3976	$DB_ENV = BDB::db_env_create;
		3977	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3978	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3979	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3980	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3981	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3982
		3983	cf::sync_job {
		3984	eval {
		3985	BDB::db_env_open
		3986	$DB_ENV,
		3987	$BDBDIR,
		3988	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3989	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3990	0666;
		3991
		3992	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3993	};
		3994
		3995	cf::cleanup "db_env_open(db): $@" if $@;
		3996	};
		3997	}
		3998
		3999	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4000	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4001	};
		4002	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4003	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4004	};
		4005	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4006	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4007	};
		4008	}
		4009
		4010	{
		4011	# configure IO::AIO
		4012
		4013	IO::AIO::min_parallel 8;
		4014	IO::AIO::max_poll_time $TICK * 0.1;
		4015	undef $AnyEvent::AIO::WATCHER;
		4016	}
		4017
		4018	my $_log_backtrace;
		4019
		4020	sub _log_backtrace {
		4021	my ($msg, @addr) = @_;
		4022
		4023	$msg =~ s/\n//;
		4024
		4025	# limit the # of concurrent backtraces
		4026	if ($_log_backtrace < 2) {
		4027	++$_log_backtrace;
		4028	my $perl_bt = Carp::longmess $msg;
		4029	async {
		4030	$Coro::current->{desc} = "abt $msg";
		4031
		4032	my @bt = fork_call {
		4033	@addr = map { sprintf "%x", $_ } @addr;
		4034	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4035	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4036	or die "addr2line: $!";
		4037
		4038	my @funcs;
		4039	my @res = <$fh>;
		4040	chomp for @res;
		4041	while (@res) {
		4042	my ($func, $line) = splice @res, 0, 2, ();
		4043	push @funcs, "[$func] $line";
		4044	}
		4045
		4046	@funcs
		4047	};
		4048
		4049	LOG llevInfo, "[ABT] $perl_bt\n";
		4050	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4051	LOG llevInfo, "[ABT] $_\n" for @bt;
		4052	--$_log_backtrace;
		4053	};
		4054	} else {
		4055	LOG llevInfo, "[ABT] $msg\n";
		4056	LOG llevInfo, "[ABT] [suppressed]\n";
		4057	}
		4058	}
		4059
		4060	# load additional modules
		4061	require "cf/$_.pm" for @EXTRA_MODULES;
		4062	cf::_connect_to_perl_2;
2285		4063
2286	END { cf::emergency_save }	4064	END { cf::emergency_save }
2287		4065
2288	1	4066	1
2289		4067

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