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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.495 by root, Tue Nov 10 04:38:45 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
20	use Digest::MD5;	58	use Digest::MD5;
21	use Fcntl;	59	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	60	use YAML::XS ();
		61	use IO::AIO ();
24	use Time::HiRes;	62	use Time::HiRes;
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		83
35	our %COMMAND = ();	84	our %COMMAND = ();
36	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
		86
		87	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
		90	our %EXT_CORO = (); # coroutines bound to extensions
		91	our %EXT_MAP = (); # pluggable maps
38		92
		93	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	94	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
41		97
42	our $TICK = MAX_TIME * 1e-6;	98	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103	our $LOCALDIR = localdir;
		104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		107	our $RANDOMDIR = "$LOCALDIR/random";
		108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
		113
		114	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	116	our $NEXT_TICK;
45	our $NOW;	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
		121	our $BDB_TRICKLE_WATCHER;
		122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
46		125
47	our %CFG;	126	our %CFG;
48		127
49	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
51		131
52	our %MAP; # all maps	132	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	133	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	134	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	135
		136	# used to convert map paths into valid unix filenames by replacing / by ∕
		137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
56		148
57	binmode STDOUT;	149	binmode STDOUT;
58	binmode STDERR;	150	binmode STDERR;
59		151
60	# read virtual server time, if available	152	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	154	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
65	}	157	}
66		158
67	mkdir cf::localdir;	159	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		160
73	# a special map that is always available	161	mkdir $_
74	our $LINK_MAP;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		163
75	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
		165
		166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		178
77	#############################################################################	179	#############################################################################
78		180
79	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
80		182
…		…
87	=item $cf::RUNTIME	189	=item $cf::RUNTIME
88		190
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	191	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	192	every server tick.
91		193
92	=item $cf::LIBDIR	194	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		195	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		196	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		197
94	The perl library directory, where extensions and cf-specific modules can	198	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	199	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		200	unique-items directory, player file directory, random maps directory and
		201	database environment.
96		202
97	=item $cf::NOW	203	=item $cf::NOW
98		204
99	The time of the last (current) server tick.	205	The time of the last (current) server tick.
100		206
101	=item $cf::TICK	207	=item $cf::TICK
102		208
103	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
104		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
105	=item %cf::CFG	221	=item %cf::CFG
106		222
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	224	from wherever your confdir points to.
109		225
		226	=item cf::wait_for_tick, cf::wait_for_tick_begin
		227
		228	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		229	returns directly I<after> the tick processing (and consequently, can only wake one process
		230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
		243
110	=back	244	=back
111		245
112	=cut	246	=cut
113		247
114	BEGIN {	248	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	249	my $msg = join "", @_;
117	utf8::encode $msg;
118		250
119	$msg .= "\n"	251	$msg .= "\n"
120	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
121		253
		254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		255
122	LOG llevError, "cfperl: $msg";	256	LOG llevError, $msg;
123	};	257	};
124	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
125		272
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		280
133	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	282	# within the Safe compartment.
135	for my $pkg (qw(	283	for my $pkg (qw(
136	cf::global cf::attachable	284	cf::global cf::attachable
137	cf::object cf::object::player	285	cf::object cf::object::player
138	cf::client cf::player	286	cf::client cf::player
139	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
140	cf::map cf::party cf::region	289	cf::party cf::region
141	)) {	290	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	292	}
145		293
146	$Event::DIED = sub {	294	$EV::DIED = sub {
147	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
148	};	296	};
149		297
150	my %ext_pkg;	298	#############################################################################
151	my @exts;
152	my @hook;
153		299
154	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
155		301
156	=over 4	302	=over 4
157		303
158	=cut	304	=item dumpval $ref
159		305
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	306	=cut
161		307
		308	sub dumpval {
		309	eval {
		310	local $SIG{__DIE__};
		311	my $d;
		312	if (1) {
		313	$d = new Data::Dumper([$_[0]], ["*var"]);
		314	$d->Terse(1);
		315	$d->Indent(2);
		316	$d->Quotekeys(0);
		317	$d->Useqq(1);
		318	#$d->Bless(...);
		319	$d->Seen($_[1]) if @_ > 1;
		320	$d = $d->Dump();
		321	}
		322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		323	$d
		324	} || "[unable to dump $_[0]: '$@']";
		325	}
		326
162	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
163		328
164	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
165		330
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
174		332
175	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
176		334
177	=cut	335	=cut
178		336
179	sub to_json($) {	337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	338
181	JSON::Syck::Dump $_[0]	339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
182	}	354	}
183		355
184	=item cf::lock_wait $string	356	=item cf::lock_wait $string
185		357
186	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
187		359
188	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
189		361
190	Wait until the given lock is available and then acquires it and returns	362	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	363	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	364	for example when the coroutine gets canceled), the lock is automatically
193	returned.	365	returned.
194		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
195	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
197		372
198	=cut	373	=item $locked = cf::lock_active $string
199		374
200	our %LOCK;	375	Return true if the lock is currently active, i.e. somebody has locked it.
		376
		377	=cut
		378
		379	our $LOCKS = new Coro::SemaphoreSet;
201		380
202	sub lock_wait($) {	381	sub lock_wait($) {
203	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	383	}
211		384
212	sub lock_acquire($) {	385	sub lock_acquire($) {
213	my ($key) = @_;	386	$LOCKS->guard ($_[0])
		387	}
214		388
215	# wait, to be sure we are not locked	389	sub lock_active($) {
216	lock_wait $key;	390	$LOCKS->count ($_[0]) < 1
		391	}
217		392
218	$LOCK{$key} = [];	393	sub freeze_mainloop {
		394	tick_inhibit_inc;
219		395
220	Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	397	}
222	$_->ready for @{ delete $LOCK{$key} };	398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
223	}	457	}
		458	};
		459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
224	}	472	}
225		473
226	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
227		475
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	476	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	477	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		478	thing you are allowed to do is call C<prio> on it.
230		479
231	=cut	480	=cut
232		481
233	sub async(&) {	482	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		483
250	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
251		485
252	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
255		490
256	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
259	fast or be very important.	494	fast or be very important.
…		…
262		497
263	sub sync_job(&) {	498	sub sync_job(&) {
264	my ($job) = @_;	499	my ($job) = @_;
265		500
266	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
267	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
269		506
270	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	508
272	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
273		510
274	my $busy = 1;	511	my $busy = 1;
275	my @res;	512	my @res;
276		513
277	(Coro::async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	516	@res = eval { $job->() };
279	warn $@ if $@;	517	warn $@ if $@;
280	undef $busy;	518	undef $busy;
281	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
282		520
283	while ($busy) {	521	while ($busy) {
		522	if (Coro::nready) {
284	Coro::cede_notself;	523	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
286	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
287		532
288	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
289	} else {	534	} else {
290	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
291		536
292	$job->()	537	$job->()
293	}	538	}
294	}	539	}
295		540
296	=item $coro = cf::coro { BLOCK }	541	=item $coro = cf::async_ext { BLOCK }
297		542
298	Creates and returns a new coro. This coro is automcatially being canceled	543	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	544	extension calling this is being unloaded.
300		545
301	=cut	546	=cut
302		547
303	sub coro(&) {	548	sub async_ext(&) {
304	my $cb = shift;	549	my $cb = shift;
305		550
306	my $coro = &cf::async ($cb);	551	my $coro = &Coro::async ($cb);
307		552
308	$coro->on_destroy (sub {	553	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	554	delete $EXT_CORO{$coro+0};
310	});	555	});
311	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
312		557
313	$coro	558	$coro
314	}	559	}
315		560
316	sub write_runtime {	561	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		562
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	563	Executes the given code block with the given arguments in a seperate
320	or return;	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
321		567
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	568	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		569
326	aio_fsync $fh	570	sub fork_call(&@) {
327	and return;	571	my ($cb, @args) = @_;
328		572
329	close $fh	573	# we seemingly have to make a local copy of the whole thing,
330	or return;	574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
331		576
332	aio_rename "$runtime~", $runtime	577	my @res = Coro::Util::fork_eval {
333	and return;	578	reset_signals;
		579	&$cb
		580	}, @args;
334		581
		582	wantarray ? @res : $res[-1]
		583	}
		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
335	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
		737	}
		738
		739	=item cf::datalog type => key => value, ...
		740
		741	Log a datalog packet of the given type with the given key-value pairs.
		742
		743	=cut
		744
		745	sub datalog($@) {
		746	my ($type, %kv) = @_;
		747	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	748	}
337		749
338	=back	750	=back
339		751
340	=cut	752	=cut
341		753
342	#############################################################################	754	#############################################################################
343		755
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
465		757
466	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
467	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
469		761
470	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	764	Deliantra).
473		765
474	=over 4	766	=over 4
475		767
476	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
477		769
…		…
521	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
522		814
523	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
525		817
526	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
527	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
528		820
529	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
530		822
531	=over 4	823	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	883	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	884	our @CB_MAP = ();
593		885
594	my %attachment;	886	my %attachment;
595		887
		888	sub cf::attachable::thawer_merge {
		889	# simply override everything except _meta
		890	local $_[0]{_meta};
		891	%{$_[0]} = %{$_[1]};
		892	}
		893
596	sub _attach_cb($$$$) {	894	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	895	my ($registry, $event, $prio, $cb) = @_;
598		896
599	use sort 'stable';	897	use sort 'stable';
600		898
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
635		933
636	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		938
641	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	940	my $pkg = shift @arg;
643		941
644	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
674	}	972	}
675		973
676	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
677	} else {	975	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	977	}
680		978
681	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
682	}	980	}
683		981
…		…
685	if (ref $_[0]) {	983	if (ref $_[0]) {
686	_object_attach @_;	984	_object_attach @_;
687	} else {	985	} else {
688	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
689	}	987	}
		988	_recalc_want;
690	};	989	};
691		990
692	# all those should be optimised	991	# all those should be optimised
693	sub cf::attachable::detach {	992	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
698	reattach ($obj);	997	reattach ($obj);
699	} else {	998	} else {
700	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
701	}	1000	}
		1001	_recalc_want;
702	};	1002	};
703		1003
704	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
706		1006
…		…
721	";	1021	";
722	die if $@;	1022	die if $@;
723	}	1023	}
724		1024
725	our $override;	1025	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1027
728	sub override {	1028	sub override {
729	$override = 1;	1029	$override = 1;
730	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
731	}	1031	}
732		1032
733	sub do_invoke {	1033	sub do_invoke {
734	my $event = shift;	1034	my $event = shift;
735	my $callbacks = shift;	1035	my $callbacks = shift;
736		1036
737	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
738		1038
739	local $override;	1039	local $override;
740		1040
741	for (@$callbacks) {	1041	for (@$callbacks) {
742	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
751	}	1051	}
752		1052
753	0	1053	0
754	}	1054	}
755		1055
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1057
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1059
760	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
761		1061
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1065
766	=back	1066	=back
767		1067
768	=cut	1068	=cut
769		1069
770	#############################################################################	1070	#############################################################################
771	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
772		1114
773	sub reattach {	1115	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1117	my ($obj) = @_;
		1118
		1119	# no longer needed after getting rid of delete_package?
		1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1121
777	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
778		1123
779	@$registry = ();	1124	@$registry = ();
780		1125
…		…
795	cf::attachable->attach (	1140	cf::attachable->attach (
796	prio => -1000000,	1141	prio => -1000000,
797	on_instantiate => sub {	1142	on_instantiate => sub {
798	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
799		1144
800	$data = from_json $data;	1145	$data = decode_json $data;
801		1146
802	for (@$data) {	1147	for (@$data) {
803	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
804		1149
805	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1166	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
823		1168
824	sync_job {	1169	sync_job {
825	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
828		1174
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1178	if ($cf::USE_FSYNC) {
		1179	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
832	aio_fsync $fh;	1180	aio_fsync $fh;
		1181	}
833	close $fh;	1182	aio_close $fh;
834		1183
835	if (@$objs) {	1184	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
		1189	if ($cf::USE_FSYNC) {
		1190	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
840	aio_fsync $fh;	1191	aio_fsync $fh;
		1192	}
841	close $fh;	1193	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
843	}	1195	}
844	} else {	1196	} else {
845	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
846	}	1198	}
847		1199
848	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1204	} else {
850	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
851	}	1206	}
852	} else {	1207	} else {
853	aio_unlink $filename;	1208	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
855	}	1210	}
856	}	1211	};
857	}	1212	}
858		1213
859	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
861		1216
…		…
873	or return;	1228	or return;
874		1229
875	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
877	or return;	1232	or return;
		1233
878	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
879	}	1236	}
880		1237
		1238	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
883	return ($data, $av);	1242	($data, $av)
884	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
885		1250
886	#############################################################################	1251	#############################################################################
887	# command handling &c	1252	# command handling &c
888		1253
889	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1268	}
904		1269
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1271
907	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
908		1277
909	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
910	called.	1279	called.
911		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
912	=cut	1292	=cut
913		1293
914	sub register_extcmd {	1294	sub register_extcmd {
915	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
916		1296
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1297	$EXTCMD{$name} = $cb;
921	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
922		1307
923	cf::player->attach (	1308	cf::player->attach (
924	on_command => sub {	1309	on_command => sub {
925	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
926		1311
…		…
934	cf::override;	1319	cf::override;
935	},	1320	},
936	on_extcmd => sub {	1321	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
938		1323
939	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1325
941	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
947	} else {	1341	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1343	}
950		1344
951	cf::override;	1345	cf::override;
952	},	1346	},
953	);	1347	);
954		1348
955	sub register {	1349	# "readahead" all extensions
956	my ($base, $pkg) = @_;	1350	sub cache_extensions {
		1351	my $grp = IO::AIO::aio_group;
957		1352
958	#TODO	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	}	1354	for (grep /\.ext$/, @{$_[0]}) {
		1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1356	}
		1357	};
960		1358
		1359	$grp
		1360	}
		1361
961	sub load_extension {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
		1366	for my $path (<$LIBDIR/*.ext>) {
		1367	next unless -r $path;
		1368
		1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
		1425	}
		1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
		1431	};
		1432	}
		1433
		1434	#############################################################################
		1435
		1436	=back
		1437
		1438	=head2 CORE EXTENSIONS
		1439
		1440	Functions and methods that extend core deliantra objects.
		1441
		1442	=cut
		1443
		1444	package cf::player;
		1445
		1446	use Coro::AIO;
		1447
		1448	=head3 cf::player
		1449
		1450	=over 4
		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
		1465
		1466	=item cf::player::find $login
		1467
		1468	Returns the given player object, loading it if necessary (might block).
		1469
		1470	=cut
		1471
		1472	sub playerdir($) {
		1473	"$PLAYERDIR/"
		1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1475	}
		1476
		1477	sub path($) {
		1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1479
		1480	(playerdir $login) . "/playerdata"
		1481	}
		1482
		1483	sub find_active($) {
		1484	$cf::PLAYER{$_[0]}
		1485	and $cf::PLAYER{$_[0]}->active
		1486	and $cf::PLAYER{$_[0]}
		1487	}
		1488
		1489	sub exists($) {
		1490	my ($login) = @_;
		1491
		1492	$cf::PLAYER{$login}
		1493	or !aio_stat path $login
		1494	}
		1495
		1496	sub find($) {
		1497	return $cf::PLAYER{$_[0]} || do {
		1498	my $login = $_[0];
		1499
		1500	my $guard = cf::lock_acquire "user_find:$login";
		1501
		1502	$cf::PLAYER{$_[0]} || do {
		1503	# rename old playerfiles to new ones
		1504	#TODO: remove when no longer required
		1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1508	aio_unlink +(playerdir $login) . "/$login.pl";
		1509
		1510	my $f = new_from_file cf::object::thawer path $login
		1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
		1518	$cf::PLAYER{$login} = $pl
		1519	}
		1520	}
		1521	}
		1522
		1523	sub save($) {
		1524	my ($pl) = @_;
		1525
		1526	return if $pl->{deny_save};
		1527
		1528	my $path = path $pl;
		1529	my $guard = cf::lock_acquire "user_save:$path";
		1530
		1531	return if $pl->{deny_save};
		1532
		1533	aio_mkdir playerdir $pl, 0770;
		1534	$pl->{last_save} = $cf::RUNTIME;
		1535
		1536	cf::get_slot 0.01;
		1537
		1538	$pl->save_pl ($path);
		1539	cf::cede_to_tick;
		1540	}
		1541
		1542	sub new($) {
		1543	my ($login) = @_;
		1544
		1545	my $self = create;
		1546
		1547	$self->ob->name ($login);
		1548	$self->{deny_save} = 1;
		1549
		1550	$cf::PLAYER{$login} = $self;
		1551
		1552	$self
		1553	}
		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
		1565	=item $pl->quit_character
		1566
		1567	Nukes the player without looking back. If logged in, the connection will
		1568	be destroyed. May block for a long time.
		1569
		1570	=cut
		1571
		1572	sub quit_character {
		1573	my ($pl) = @_;
		1574
		1575	my $name = $pl->ob->name;
		1576
		1577	$pl->{deny_save} = 1;
		1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1579
		1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
		1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1585	$pl->ns->destroy if $pl->ns;
		1586
		1587	my $path = playerdir $pl;
		1588	my $temp = "$path~$cf::RUNTIME~deleting~";
		1589	aio_rename $path, $temp;
		1590	delete $cf::PLAYER{$pl->ob->name};
		1591	$pl->destroy;
		1592
		1593	my $prefix = qr<^~\Q$name\E/>;
		1594
		1595	# nuke player maps
		1596	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1597
		1598	IO::AIO::aio_rmtree $temp;
		1599	}
		1600
		1601	=item $pl->kick
		1602
		1603	Kicks a player out of the game. This destroys the connection.
		1604
		1605	=cut
		1606
		1607	sub kick {
		1608	my ($pl, $kicker) = @_;
		1609
		1610	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1611	$pl->killer ("kicked");
		1612	$pl->ns->destroy;
		1613	}
		1614
		1615	=item cf::player::list_logins
		1616
		1617	Returns am arrayref of all valid playernames in the system, can take a
		1618	while and may block, so not sync_job-capable, ever.
		1619
		1620	=cut
		1621
		1622	sub list_logins {
		1623	my $dirs = aio_readdir $PLAYERDIR
		1624	or return [];
		1625
		1626	my @logins;
		1627
		1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
		1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1635	aio_read $fh, 0, 512, my $buf, 0 or next;
		1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
		1638
		1639	utf8::decode $login;
		1640	push @logins, $login;
		1641	}
		1642
		1643	\@logins
		1644	}
		1645
		1646	=item $player->maps
		1647
		1648	Returns an arrayref of map paths that are private for this
		1649	player. May block.
		1650
		1651	=cut
		1652
		1653	sub maps($) {
		1654	my ($pl) = @_;
		1655
		1656	$pl = ref $pl ? $pl->ob->name : $pl;
		1657
		1658	my $files = aio_readdir playerdir $pl
		1659	or return;
		1660
		1661	my @paths;
		1662
		1663	for (@$files) {
		1664	utf8::decode $_;
		1665	next if /\.(?:pl|pst)$/;
		1666	next unless /^$PATH_SEP/o;
		1667
		1668	push @paths, cf::map::normalise "~$pl/$_";
		1669	}
		1670
		1671	\@paths
		1672	}
		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
		1678	=item $player->ext_reply ($msgid, @msg)
		1679
		1680	Sends an ext reply to the player.
		1681
		1682	=cut
		1683
		1684	sub ext_reply($$@) {
		1685	my ($self, $id, @msg) = @_;
		1686
		1687	$self->ns->ext_reply ($id, @msg)
		1688	}
		1689
		1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
962	my ($path) = @_;	1717	my ($path) = @_;
963		1718
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1719	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1720
970	warn "loading '$path' into '$pkg'\n";	1721	for my $region (list) {
971		1722	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1723	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1724	if $region->specificity > $specificity;
974		1725	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1726	}
1004		1727
1005	# remove commands	1728	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1729	}
1111		1730
1112	=back	1731	=back
1113
1114		1732
1115	=head3 cf::map	1733	=head3 cf::map
1116		1734
1117	=over 4	1735	=over 4
1118		1736
…		…
1121	package cf::map;	1739	package cf::map;
1122		1740
1123	use Fcntl;	1741	use Fcntl;
1124	use Coro::AIO;	1742	use Coro::AIO;
1125		1743
		1744	use overload
		1745	'""' => \&as_string,
		1746	fallback => 1;
		1747
1126	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1128		1750
1129	sub generate_random_map {	1751	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1131		1755
1132	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1757	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1761	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1762	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1763	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1764	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1765	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1766	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1767	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1768	(cf::region::find $rmp->{region}), $rmp->{custom}
		1769	)
1146	}	1770	}
1147		1771
1148	# and all this just because we cannot iterate over	1772	=item cf::map->register ($regex, $prio)
1149	# all maps in C++...
1150	sub change_all_map_light {
1151	my ($change) = @_;
1152		1773
1153	$_->change_map_light ($change)	1774	Register a handler for the map path matching the given regex at the
1154	for grep $_->outdoor, values %cf::MAP;	1775	givne priority (higher is better, built-in handlers have priority 0, the
1155	}	1776	default).
1156		1777
1157	sub try_load_header($) {	1778	=cut
		1779
		1780	sub register {
		1781	my (undef, $regex, $prio) = @_;
		1782	my $pkg = caller;
		1783
		1784	no strict;
		1785	push @{"$pkg\::ISA"}, __PACKAGE__;
		1786
		1787	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1788	}
		1789
		1790	# also paths starting with '/'
		1791	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1792
		1793	sub thawer_merge {
		1794	my ($self, $merge) = @_;
		1795
		1796	# we have to keep some variables in memory intact
		1797	local $self->{path};
		1798	local $self->{load_path};
		1799
		1800	$self->SUPER::thawer_merge ($merge);
		1801	}
		1802
		1803	sub normalise {
1158	my ($path) = @_;	1804	my ($path, $base) = @_;
		1805
		1806	$path = "$path"; # make sure its a string
		1807
		1808	$path =~ s/\.map$//;
		1809
		1810	# map plan:
		1811	#
		1812	# /! non-realised random map exit (special hack!)
		1813	# {... are special paths that are not being touched
		1814	# ?xxx/... are special absolute paths
		1815	# ?random/... random maps
		1816	# /... normal maps
		1817	# ~user/... per-player map of a specific user
		1818
		1819	$path =~ s/$PATH_SEP/\//go;
		1820
		1821	# treat it as relative path if it starts with
		1822	# something that looks reasonable
		1823	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1824	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1825
		1826	$base =~ s{[^/]+/?$}{};
		1827	$path = "$base/$path";
		1828	}
		1829
		1830	for ($path) {
		1831	redo if s{//}{/};
		1832	redo if s{/\.?/}{/};
		1833	redo if s{/[^/]+/\.\./}{/};
		1834	}
		1835
		1836	$path
		1837	}
		1838
		1839	sub new_from_path {
		1840	my (undef, $path, $base) = @_;
		1841
		1842	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1843
		1844	$path = normalise $path, $base;
		1845
		1846	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1847	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1848	my $self = bless cf::map::new, $pkg;
		1849	$self->{path} = $path; $self->path ($path);
		1850	$self->init; # pass $1 etc.
		1851	return $self;
		1852	}
		1853	}
		1854
		1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1856	()
		1857	}
		1858
		1859	sub init {
		1860	my ($self) = @_;
		1861
		1862	$self
		1863	}
		1864
		1865	sub as_string {
		1866	my ($self) = @_;
		1867
		1868	"$self->{path}"
		1869	}
		1870
		1871	# the displayed name, this is a one way mapping
		1872	sub visible_name {
		1873	&as_string
		1874	}
		1875
		1876	# the original (read-only) location
		1877	sub load_path {
		1878	my ($self) = @_;
		1879
		1880	"$MAPDIR/$self->{path}.map"
		1881	}
		1882
		1883	# the temporary/swap location
		1884	sub save_path {
		1885	my ($self) = @_;
		1886
		1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1888	"$TMPDIR/$path.map"
		1889	}
		1890
		1891	# the unique path, undef == no special unique path
		1892	sub uniq_path {
		1893	my ($self) = @_;
		1894
		1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1896	"$UNIQUEDIR/$path"
		1897	}
		1898
		1899	sub decay_objects {
		1900	my ($self) = @_;
		1901
		1902	return if $self->{deny_reset};
		1903
		1904	$self->do_decay_objects;
		1905	}
		1906
		1907	sub unlink_save {
		1908	my ($self) = @_;
		1909
		1910	utf8::encode (my $save = $self->save_path);
		1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1912	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1913	}
		1914
		1915	sub load_header_from($) {
		1916	my ($self, $path) = @_;
1159		1917
1160	utf8::encode $path;	1918	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1162	or return;	1920	or return;
1163		1921
1164	my $map = cf::map::new	1922	$self->_load_header ($f)
1165	or return;	1923	or return;
1166		1924
1167	# for better error messages only, will be overwritten	1925	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1926	$f->resolve_delayed_derefs;
1169		1927
1170	$map->load_header ($path)	1928	$self->{load_path} = $path;
		1929
		1930	1
		1931	}
		1932
		1933	sub load_header_orig {
		1934	my ($self) = @_;
		1935
		1936	$self->load_header_from ($self->load_path)
		1937	}
		1938
		1939	sub load_header_temp {
		1940	my ($self) = @_;
		1941
		1942	$self->load_header_from ($self->save_path)
		1943	}
		1944
		1945	sub prepare_temp {
		1946	my ($self) = @_;
		1947
		1948	$self->last_access ((delete $self->{last_access})
		1949	|| $cf::RUNTIME); #d#
		1950	# safety
		1951	$self->{instantiate_time} = $cf::RUNTIME
		1952	if $self->{instantiate_time} > $cf::RUNTIME;
		1953	}
		1954
		1955	sub prepare_orig {
		1956	my ($self) = @_;
		1957
		1958	$self->{load_original} = 1;
		1959	$self->{instantiate_time} = $cf::RUNTIME;
		1960	$self->last_access ($cf::RUNTIME);
		1961	$self->instantiate;
		1962	}
		1963
		1964	sub load_header {
		1965	my ($self) = @_;
		1966
		1967	if ($self->load_header_temp) {
		1968	$self->prepare_temp;
		1969	} else {
		1970	$self->load_header_orig
1171	or return;	1971	or return;
		1972	$self->prepare_orig;
		1973	}
1172		1974
1173	$map->{load_path} = $path;	1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
1174		1977
1175	$map	1978	$self->default_region (cf::region::find_by_path $self->{path})
		1979	unless $self->default_region;
		1980
		1981	1
1176	}	1982	}
1177		1983
1178	sub find;	1984	sub find;
1179	sub find {	1985	sub find {
1180	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1181		1987
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1989
1187	cf::lock_wait "map_find:$key";	1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1191		1992
1192	# do it the slow way	1993	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	1994	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1995	or return;
1211		1996
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1224		1998
1225	Coro::cede;	1999	$map->load_header
		2000	or return;
1226		2001
1227	if ($map->should_reset) {	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2003	# doing this can freeze the server in a sync job, obviously
		2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1228	$map->reset;	2007	$map->reset;
1229	undef $guard;
1230	$map = find $path	2008	return find $path;
1231	or return;
1232	}	2009	}
1233		2010
1234	$cf::MAP{$key} = $map	2011	$cf::MAP{$path} = $map
1235	}	2012	}
1236	}	2013	}
		2014
		2015	sub pre_load { }
		2016	sub post_load { }
1237		2017
1238	sub load {	2018	sub load {
1239	my ($self) = @_;	2019	my ($self) = @_;
1240		2020
		2021	local $self->{deny_reset} = 1; # loading can take a long time
		2022
1241	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2026	my $guard = cf::lock_acquire "map_data:$path";
1243		2027
		2028	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2030
1246	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1247		2032
1248	$self->alloc;	2033	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2034
		2035	$self->pre_load;
		2036	cf::cede_to_tick;
		2037
		2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
		2040	$self->_load_objects ($f)
1250	or return;	2041	or return;
1251		2042
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1253	if delete $self->{load_original};	2044	if delete $self->{load_original};
1254		2045
1255	if (my $uniq = $path->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2047	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2050	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1260	}	2054	}
1261	}	2055	}
1262		2056
1263	Coro::cede;	2057	$f->resolve_delayed_derefs;
1264		2058
		2059	cf::cede_to_tick;
1265	# now do the right thing for maps	2060	# now do the right thing for maps
1266	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2063	unless $self->difficulty;
		2064	cf::cede_to_tick;
		2065
		2066	unless ($self->{deny_activate}) {
		2067	$self->decay_objects;
		2068	$self->fix_auto_apply;
		2069	$self->update_buttons;
		2070	cf::cede_to_tick;
1278	$self->activate;	2071	$self->activate;
1279	}	2072	}
1280		2073
1281	Coro::cede;	2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
1282		2076
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_ACTIVE);
		2078	}
		2079
		2080	$self->post_load;
		2081	}
		2082
		2083	sub customise_for {
		2084	my ($self, $ob) = @_;
		2085
		2086	return find "~" . $ob->name . "/" . $self->{path}
		2087	if $self->per_player;
		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
		2092	$self
		2093	}
		2094
		2095	# find and load all maps in the 3x3 area around a map
		2096	sub load_neighbours {
		2097	my ($map) = @_;
		2098
		2099	my @neigh; # diagonal neighbours
		2100
		2101	for (0 .. 3) {
		2102	my $neigh = $map->tile_path ($_)
		2103	or next;
		2104	$neigh = find $neigh, $map
		2105	or next;
		2106	$neigh->load;
		2107
		2108	push @neigh,
		2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2111	}
		2112
		2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
		2115	my $neigh = find $path, $origin
		2116	or next;
		2117	$neigh->load;
		2118	}
1284	}	2119	}
1285		2120
1286	sub find_sync {	2121	sub find_sync {
1287	my ($path, $origin) = @_;	2122	my ($path, $origin) = @_;
1288		2123
1289	cf::sync_job { cf::map::find $path, $origin }	2124	cf::sync_job { find $path, $origin }
1290	}	2125	}
1291		2126
1292	sub do_load_sync {	2127	sub do_load_sync {
1293	my ($map) = @_;	2128	my ($map) = @_;
1294		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1295	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
		2134	}
		2135
		2136	our %MAP_PREFETCH;
		2137	our $MAP_PREFETCHER = undef;
		2138
		2139	sub find_async {
		2140	my ($path, $origin, $load) = @_;
		2141
		2142	$path = normalise $path, $origin && $origin->{path};
		2143
		2144	if (my $map = $cf::MAP{$path}) {
		2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2146	}
		2147
		2148	$MAP_PREFETCH{$path} |= $load;
		2149
		2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
		2153	while (%MAP_PREFETCH) {
		2154	while (my ($k, $v) = each %MAP_PREFETCH) {
		2155	if (my $map = find $k) {
		2156	$map->load if $v;
		2157	}
		2158
		2159	delete $MAP_PREFETCH{$k};
		2160	}
		2161	}
		2162	undef $MAP_PREFETCHER;
		2163	};
		2164	$MAP_PREFETCHER->prio (6);
		2165
		2166	()
1296	}	2167	}
1297		2168
1298	sub save {	2169	sub save {
1299	my ($self) = @_;	2170	my ($self) = @_;
1300		2171
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2173
1303	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1304		2175
1305	return unless $self->dirty;	2176	return unless $self->dirty;
1306		2177
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2178	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2179	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2180
1310	$self->{load_path} = $save;	2181	$self->{load_path} = $save;
1311		2182
1312	return if $self->{deny_save};	2183	return if $self->{deny_save};
1313		2184
1314	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1315		2186
		2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
		2189	$_->contr->save for $self->players;
		2190	};
		2191
		2192	cf::get_slot 0.02;
		2193
1316	if ($uniq) {	2194	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2197	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2198	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2199	}
1322	}	2200	}
1323		2201
1324	sub swap_out {	2202	sub swap_out {
1325	my ($self) = @_;	2203	my ($self) = @_;
1326		2204
1327	# save first because save cedes	2205	# save first because save cedes
1328	$self->save;	2206	$self->save;
1329		2207
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2209
1332	return if $self->players;	2210	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1334	return if $self->{deny_save};	2212	return if $self->{deny_save};
1335		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2218	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2219	}
1339		2220
1340	sub reset_at {	2221	sub reset_at {
1341	my ($self) = @_;	2222	my ($self) = @_;
1342		2223
1343	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1346		2226
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2229
…		…
1354	my ($self) = @_;	2234	my ($self) = @_;
1355		2235
1356	$self->reset_at <= $cf::RUNTIME	2236	$self->reset_at <= $cf::RUNTIME
1357	}	2237	}
1358		2238
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2239	sub reset {
1381	my ($self) = @_;	2240	my ($self) = @_;
1382		2241
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2243
1385	return if $self->players;	2244	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2245
1388	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	# need to save uniques path
		2251	unless ($self->{deny_save}) {
		2252	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2253
		2254	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2255	if $uniq;
		2256	}
1389		2257
1390	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1391		2259
		2260	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2261	$_->clear_links_to ($self) for values %cf::MAP;
		2262	$self->clear;
1393		2263
1394	$self->unlink_save;	2264	$self->unlink_save;
1395	$self->destroy;	2265	$self->destroy;
1396	}	2266	}
1397		2267
1398	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1399		2269
1400	sub nuke {	2270	sub nuke {
1401	my ($self) = @_;	2271	my ($self) = @_;
1402		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
		2276	delete $cf::MAP{$self->path};
		2277
		2278	$self->unlink_save;
		2279
		2280	bless $self, "cf::map";
		2281	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2285
		2286	$cf::MAP{$self->path} = $self;
		2287	}
		2288
1406	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
1407	}	2290	}
1408		2291
1409	sub customise_for {	2292	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2293
1412	if ($map->per_player) {	2294	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
1414	}	2300	[
1415		2301	map {
1416	$map	2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
1417	}	2308	}
1418		2309
1419	sub emergency_save {	2310	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2311
1422	warn "enter emergency map save\n";	2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
1423		2314
1424	cf::sync_job {	2315	=cut
1425	warn "begin emergency map save\n";	2316
1426	$_->save for values %cf::MAP;	2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
		2326	}
		2327
		2328	=item cf::map::unique_maps
		2329
		2330	Returns an arrayref of paths of all shared maps that have
		2331	instantiated unique items. May block.
		2332
		2333	=cut
		2334
		2335	sub unique_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	s/\.map$//; # TODO future compatibility hack
		2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2341	? ()
		2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
1427	};	2374	}
1428		2375
1429	warn "end emergency map save\n";	2376	\@maps
		2377	}
		2378
		2379	=back
		2380
		2381	=head3 cf::object
		2382
		2383	=cut
		2384
		2385	package cf::object;
		2386
		2387	=over 4
		2388
		2389	=item $ob->inv_recursive
		2390
		2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
		2393
		2394	=cut
		2395
		2396	sub inv_recursive_;
		2397	sub inv_recursive_ {
		2398	map { $_, inv_recursive_ $_->inv } @_
		2399	}
		2400
		2401	sub inv_recursive {
		2402	inv_recursive_ inv $_[0]
		2403	}
		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
1430	}	2431	}
1431		2432
1432	package cf;	2433	package cf;
1433		2434
1434	=back	2435	=back
1435
1436		2436
1437	=head3 cf::object::player	2437	=head3 cf::object::player
1438		2438
1439	=over 4	2439	=over 4
1440		2440
…		…
1443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1444	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1445	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1446		2446
1447	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1448		2462
1449	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1450	# with dialog boxes.	2464	# with dialog boxes.
1451	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1452	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1454		2468
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2470
1457	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1459	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1462	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1463	}	2496	}
1464		2497
1465	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1466		2499
1467	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1480		2513
1481	=item $player_object->enter_link	2514	=item $player_object->enter_link
1482		2515
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2517
1485	The player should be reaosnably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1486	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
		2522
		2523	Will never block.
1487		2524
1488	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1489		2526
1490	Moves the player out of the specila link map onto the given map. If the	2527	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2528	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2529	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2530	fails, to the emergency map position.
1494		2531
1495	Might block.	2532	Might block.
1496		2533
1497	=cut	2534	=cut
		2535
		2536	sub link_map {
		2537	unless ($LINK_MAP) {
		2538	$LINK_MAP = cf::map::find "{link}"
		2539	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2540	$LINK_MAP->load;
		2541	}
		2542
		2543	$LINK_MAP
		2544	}
1498		2545
1499	sub cf::object::player::enter_link {	2546	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2547	my ($self) = @_;
1501		2548
1502	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1503		2550
1504	return if $self->map == $LINK_MAP;	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2552
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1508		2555
1509	$self->enter_map ($LINK_MAP, 20, 20);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2557	}
1511		2558
1512	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1514		2563
1515	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1516		2565
1517	unless ($map) {	2566	unless ($map) {
1518	# restore original map position	2567	# restore original map position
…		…
1529	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1530	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1531		2580
1532	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1535		2584
1536	$map->load;	2585	$map->load;
		2586	$map->load_neighbours;
1537		2587
		2588	return unless $self->contr->active;
		2589
		2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2591	$self->enter_map ($map, $x, $y);
		2592
		2593	# only activate afterwards, to support waiting in hooks
1538	$self->activate_recursive;	2594	$self->activate_recursive;
1539	$self->enter_map ($map, $x, $y);
1540	}	2595	}
1541		2596
1542	cf::player->attach (	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2598
1546	# abort map switching before logout	2599	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2600	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2602	the new (success) or old (failed) map position. In either case, $done will
1550	};	2603	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2604
1556	# try to abort aborted map switching on player login :)	2605	Note that $check will be called with a potentially non-loaded map, so if
1557	# should happen only on crashes	2606	it needs a loaded map it has to call C<< ->load >>.
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569		2607
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1573		2611
1574	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2617
1577	$self->enter_link;	2618	$self->enter_link;
1578		2619
1579	(cf::async {	2620	(async {
1580	$path = new cf::path $path;	2621	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2622
1582	my $map = cf::map::find $path->as_string;	2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
		2642	my $map = eval {
		2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
1584		2647	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2648	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
1589		2651
		2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
		2658	}
		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1591	})->prio (1);	2666	})->prio (1);
1592	}	2667	}
1593		2668
1594	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1595		2670
…		…
1597		2672
1598	sub parse_random_map_params {	2673	sub parse_random_map_params {
1599	my ($spec) = @_;	2674	my ($spec) = @_;
1600		2675
1601	my $rmp = { # defaults	2676	my $rmp = { # defaults
1602	xsize => 10,	2677	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2678	ysize => (cf::rndm 15, 40),
		2679	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2680	#layout => string,
1604	};	2681	};
1605		2682
1606	for (split /\n/, $spec) {	2683	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2684	my ($k, $v) = split /\s+/, $_, 2;
1608		2685
…		…
1620	# that depends on the exit object	2697	# that depends on the exit object
1621		2698
1622	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
1623		2700
1624	if ($exit->map) {	2701	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2702	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1629	}	2708	}
1630		2709
1631	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1632		2711
1633	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1634	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
		2714	my $meta = "$RANDOMDIR/$md5.meta";
1635		2715
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
		2718	undef $fh;
		2719	aio_rename "$meta~", $meta;
1638		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1639	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
1641	}	2727	}
1642	}	2728	}
1643		2729
1644	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
1646		2732
1647	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
1648		2734
1649	$self->enter_link;	2735	$self->enter_link;
1650		2736
1651	(cf::async {	2737	(async {
1652	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
1653	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
1654	prepare_random_map $exit	2747	prepare_random_map $exit
1655	if $exit->slaying eq "/!";	2748	if $exit->slaying eq "/!";
		2749	}
1656		2750
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
1659		2754
		2755	$self->goto ($map, $x, $y);
		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
1660	1;	2761	1
1661	}) {	2762	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
1663	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2765	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2767
1667	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2769	$self->leave_link;
1669	}	2770	}
1670	})->prio (1);	2771	})->prio (1);
…		…
1683		2784
1684	sub cf::client::send_drawinfo {	2785	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2786	my ($self, $text, $flags) = @_;
1686		2787
1687	utf8::encode $text;	2788	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2790	}
1690		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
		2979	=item $client->ext_msg ($type, @msg)
		2980
		2981	Sends an ext event to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_msg($$@) {
		2986	my ($self, $type, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
		2991	push @msg, msgtype => "event_$type";
		2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
1691		3013
1692	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
1693		3015
1694	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		3019
1698	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	3021	become reliable at some point in the future.
1700		3022
1701	=cut	3023	=cut
1702		3024
1703	sub cf::client::query {	3025	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	3034	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		3036
1715	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
1717	}	3041	}
1718		3042
1719	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
1720	on_reply => sub {	3049	on_reply => sub {
1721	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
1722		3051
1723	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
1724	# get handled first	3053	# get handled first
1725	my $queue = delete $ns->{query_queue}	3054	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	3055	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		3056
1728	(shift @$queue)->[1]->($msg);	3057	(shift @$queue)->[1]->($msg);
		3058	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		3059
1730	push @{ $ns->{query_queue} }, @$queue;	3060	push @{ $ns->{query_queue} }, @$queue;
1731		3061
1732	if (@{ $ns->{query_queue} } == @$queue) {	3062	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	3063	if (@$queue) {
…		…
1735	} else {	3065	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	3067	}
1738	}	3068	}
1739	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
1740	);	3096	);
1741		3097
1742	=item $client->coro (\&cb)	3098	=item $client->async (\&cb)
1743		3099
1744	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3101	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3102	or loss of connection).
1747		3103
1748	=cut	3104	=cut
1749		3105
1750	sub cf::client::coro {	3106	sub cf::client::async {
1751	my ($self, $cb) = @_;	3107	my ($self, $cb) = @_;
1752		3108
1753	my $coro = &cf::async ($cb);	3109	my $coro = &Coro::async ($cb);
1754		3110
1755	$coro->on_destroy (sub {	3111	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3112	delete $self->{_coro}{$coro+0};
1757	});	3113	});
1758		3114
…		…
1785	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
1787		3143
1788	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
1789		3145
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
1791		3151
1792	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
1793		3153
1794	=pod	3154	=pod
1795		3155
1796	The following fucntions and emthods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
1797		3157
1798	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
1799	cf::object::player player	3163	cf::object::player
1800	cf::player peaceful	3164	player
1801	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
1802		3171
1803	=cut	3172	=cut
1804		3173
1805	for (	3174	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
1807	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
1809	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
1810	) {	3181	) {
1811	no strict 'refs';	3182	no strict 'refs';
1812	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
1813	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1830	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
1831		3202
1832	my $qcode = $code;	3203	my $qcode = $code;
1833	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1834	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
1835		3208
1836	local $_;	3209	local $_;
1837	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
1838		3211
1839	my $eval =	3212	my $eval =
…		…
1882	=back	3255	=back
1883		3256
1884	=cut	3257	=cut
1885		3258
1886	#############################################################################	3259	#############################################################################
		3260	# the server's init and main functions
1887		3261
1888	=head2 EXTENSION DATABASE SUPPORT	3262	sub load_facedata($) {
		3263	my ($path) = @_;
1889		3264
1890	Crossfire maintains a very simple database for extension use. It can	3265	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3266	# for this (global event?)
1892	excludes objects.	3267	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3268
1894	The parameter C<$family> should best start with the name of the extension	3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3270
1897	=over 4	3271	warn "loading facedata from $path\n";
1898		3272
1899	=item $hashref = cf::db_get $family	3273	my $facedata;
		3274	0 < aio_load $path, $facedata
		3275	or die "$path: $!";
1900		3276
1901	Return a hashref for use by the extension C<$family>, which can be	3277	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3278
1905	=item $value = cf::db_get $family => $key	3279	$facedata->{version} == 2
		3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3281
1907	Returns a single value from the database	3282	# patch in the exptable
1908		3283	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	3284	type => FT_RSRC,
1910		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3286	};
		3287	cf::cede_to_tick;
1960		3288
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3289	{
		3290	my $faces = $facedata->{faceinfo};
1965		3291
1966	sub db_get($;$) {	3292	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3294
1972	sub db_put($$;$) {	3295	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3296	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1975	} else {	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		3299
1981	cf::global->attach (	3300	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3301	}
1986	);
1987	}
1988		3302
1989	#############################################################################	3303	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3304	next unless $info->{smooth};
1991		3305
1992	sub cfg_load {	3306	my $idx = cf::face::find $face
		3307	or next;
		3308
		3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
		3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3312	} else {
		3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3314	}
		3315
		3316	cf::cede_to_tick;
		3317	}
		3318	}
		3319
		3320	{
		3321	my $anims = $facedata->{animinfo};
		3322
		3323	while (my ($anim, $info) = each %$anims) {
		3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3325	cf::cede_to_tick;
		3326	}
		3327
		3328	cf::anim::invalidate_all; # d'oh
		3329	}
		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
		3366	1
		3367	}
		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
		3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
		3412	load_resource_file "$MAPDIR/regions"
		3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
		3419	}
		3420
		3421	sub reload_facedata {
		3422	load_facedata "$DATADIR/facedata"
		3423	or die "unable to load facedata\n";
		3424	}
		3425
		3426	sub reload_archetypes {
		3427	load_resource_file "$DATADIR/archetypes"
		3428	or die "unable to load archetypes\n";
		3429	}
		3430
		3431	sub reload_treasures {
		3432	load_resource_file "$DATADIR/treasures"
		3433	or die "unable to load treasurelists\n";
		3434	}
		3435
		3436	sub reload_resources {
		3437	warn "reloading resource files...\n";
		3438
		3439	reload_facedata;
		3440	reload_archetypes;
		3441	reload_regions;
		3442	reload_treasures;
		3443
		3444	warn "finished reloading resource files\n";
		3445	}
		3446
		3447	sub reload_config {
		3448	warn "reloading config file...\n";
		3449
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3451	or return;
1995		3452
1996	local $/;	3453	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
1998		3455
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3457
		3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3460
2001	if (exists $CFG{mlockall}) {	3461	if (exists $CFG{mlockall}) {
2002	eval {	3462	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3465	};
2006	warn $@ if $@;	3466	warn $@ if $@;
2007	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2008	}	3498	}
2009		3499
2010	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2011	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3518	(async {
2015	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3520	EV::loop EV::LOOP_ONESHOT;
		3521	})->prio (Coro::PRIO_MAX);
2017	};	3522	};
2018		3523
2019	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
2020	db_load;	3525
		3526	cf::sync_job {
		3527	cf::load_settings;
		3528	cf::load_materials;
		3529
		3530	reload_resources;
		3531	reload_config;
		3532	db_init;
		3533
		3534	cf::init_uuid;
		3535	cf::init_signals;
		3536	cf::init_commands;
		3537	cf::init_skills;
		3538
		3539	cf::init_beforeplay;
		3540
		3541	atomic;
		3542
2021	load_extensions;	3543	load_extensions;
2022	Event::loop;	3544
		3545	utime time, time, $RUNTIMEFILE;
		3546
		3547	# no (long-running) fork's whatsoever before this point(!)
		3548	use POSIX ();
		3549	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3550
		3551	(pop @POST_INIT)->(0) while @POST_INIT;
		3552	};
		3553
		3554	main_loop;
2023	}	3555	}
2024		3556
2025	#############################################################################	3557	#############################################################################
2026	# initialisation	3558	# initialisation and cleanup
2027		3559
		3560	# install some emergency cleanup handlers
		3561	BEGIN {
		3562	our %SIGWATCHER = ();
		3563	for my $signal (qw(INT HUP TERM)) {
		3564	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3565	cf::cleanup "SIG$signal";
		3566	};
		3567	}
		3568	}
		3569
		3570	sub write_runtime_sync {
		3571	# first touch the runtime file to show we are still running:
		3572	# the fsync below can take a very very long time.
		3573
		3574	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3575
		3576	my $guard = cf::lock_acquire "write_runtime";
		3577
		3578	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3579	or return;
		3580
		3581	my $value = $cf::RUNTIME + 90 + 10;
		3582	# 10 is the runtime save interval, for a monotonic clock
		3583	# 60 allows for the watchdog to kill the server.
		3584
		3585	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3586	and return;
		3587
		3588	# always fsync - this file is important
		3589	aio_fsync $fh
		3590	and return;
		3591
		3592	# touch it again to show we are up-to-date
		3593	aio_utime $fh, undef, undef;
		3594
		3595	close $fh
		3596	or return;
		3597
		3598	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3599	and return;
		3600
		3601	warn "runtime file written.\n";
		3602
		3603	1
		3604	}
		3605
		3606	our $uuid_lock;
		3607	our $uuid_skip;
		3608
		3609	sub write_uuid_sync($) {
		3610	$uuid_skip ||= $_[0];
		3611
		3612	return if $uuid_lock;
		3613	local $uuid_lock = 1;
		3614
		3615	my $uuid = "$LOCALDIR/uuid";
		3616
		3617	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3618	or return;
		3619
		3620	my $value = uuid_seq uuid_cur;
		3621
		3622	unless ($value) {
		3623	warn "cowardly refusing to write zero uuid value!\n";
		3624	return;
		3625	}
		3626
		3627	my $value = uuid_str $value + $uuid_skip;
		3628	$uuid_skip = 0;
		3629
		3630	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3631	and return;
		3632
		3633	# always fsync - this file is important
		3634	aio_fsync $fh
		3635	and return;
		3636
		3637	close $fh
		3638	or return;
		3639
		3640	aio_rename "$uuid~", $uuid
		3641	and return;
		3642
		3643	warn "uuid file written ($value).\n";
		3644
		3645	1
		3646
		3647	}
		3648
		3649	sub write_uuid($$) {
		3650	my ($skip, $sync) = @_;
		3651
		3652	$sync ? write_uuid_sync $skip
		3653	: async { write_uuid_sync $skip };
		3654	}
		3655
		3656	sub emergency_save() {
		3657	my $freeze_guard = cf::freeze_mainloop;
		3658
		3659	warn "emergency_perl_save: enter\n";
		3660
		3661	cf::sync_job {
		3662	# this is a trade-off: we want to be very quick here, so
		3663	# save all maps without fsync, and later call a global sync
		3664	# (which in turn might be very very slow)
		3665	local $USE_FSYNC = 0;
		3666
		3667	# use a peculiar iteration method to avoid tripping on perl
		3668	# refcount bugs in for. also avoids problems with players
		3669	# and maps saved/destroyed asynchronously.
		3670	warn "emergency_perl_save: begin player save\n";
		3671	for my $login (keys %cf::PLAYER) {
		3672	my $pl = $cf::PLAYER{$login} or next;
		3673	$pl->valid or next;
		3674	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3675	$pl->save;
		3676	}
		3677	warn "emergency_perl_save: end player save\n";
		3678
		3679	warn "emergency_perl_save: begin map save\n";
		3680	for my $path (keys %cf::MAP) {
		3681	my $map = $cf::MAP{$path} or next;
		3682	$map->valid or next;
		3683	$map->save;
		3684	}
		3685	warn "emergency_perl_save: end map save\n";
		3686
		3687	warn "emergency_perl_save: begin database checkpoint\n";
		3688	BDB::db_env_txn_checkpoint $DB_ENV;
		3689	warn "emergency_perl_save: end database checkpoint\n";
		3690
		3691	warn "emergency_perl_save: begin write uuid\n";
		3692	write_uuid_sync 1;
		3693	warn "emergency_perl_save: end write uuid\n";
		3694	};
		3695
		3696	warn "emergency_perl_save: starting sync()\n";
		3697	IO::AIO::aio_sync sub {
		3698	warn "emergency_perl_save: finished sync()\n";
		3699	};
		3700
		3701	warn "emergency_perl_save: leave\n";
		3702	}
		3703
		3704	sub post_cleanup {
		3705	my ($make_core) = @_;
		3706
		3707	warn Carp::longmess "post_cleanup backtrace"
		3708	if $make_core;
		3709
		3710	my $fh = pidfile;
		3711	unlink $PIDFILE if <$fh> == $$;
		3712	}
		3713
		3714	# a safer delete_package, copied from Symbol
		3715	sub clear_package($) {
		3716	my $pkg = shift;
		3717
		3718	# expand to full symbol table name if needed
		3719	unless ($pkg =~ /^main::.*::$/) {
		3720	$pkg = "main$pkg" if $pkg =~ /^::/;
		3721	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3722	$pkg .= '::' unless $pkg =~ /::$/;
		3723	}
		3724
		3725	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3726	my $stem_symtab = *{$stem}{HASH};
		3727
		3728	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3729	or return;
		3730
		3731	# clear all symbols
		3732	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3733	for my $name (keys %$leaf_symtab) {
		3734	_gv_clear *{"$pkg$name"};
		3735	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3736	}
		3737	warn "cleared package $pkg\n";#d#
		3738	}
		3739
2028	sub reload() {	3740	sub do_reload_perl() {
2029	# can/must only be called in main	3741	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3742	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3743	warn "can only reload from main coroutine";
2032	return;	3744	return;
2033	}	3745	}
2034		3746
		3747	return if $RELOAD++;
		3748
		3749	my $t1 = EV::time;
		3750
		3751	while ($RELOAD) {
2035	warn "reloading...";	3752	warn "reloading...";
2036		3753
2037	my $guard = freeze_mainloop;	3754	warn "entering sync_job";
		3755
		3756	cf::sync_job {
		3757	cf::write_runtime_sync; # external watchdog should not bark
2038	cf::emergency_save;	3758	cf::emergency_save;
		3759	cf::write_runtime_sync; # external watchdog should not bark
2039		3760
2040	eval {	3761	warn "syncing database to disk";
		3762	BDB::db_env_txn_checkpoint $DB_ENV;
		3763
2041	# if anything goes wrong in here, we should simply crash as we already saved	3764	# if anything goes wrong in here, we should simply crash as we already saved
2042		3765
2043	# cancel all watchers	3766	warn "flushing outstanding aio requests";
2044	for (Event::all_watchers) {	3767	while (IO::AIO::nreqs || BDB::nreqs) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3768	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2046	}
2047
2048	# cancel all extension coros
2049	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();
2051
2052	# unload all extensions
2053	for (@exts) {
2054	warn "unloading <$_>";
2055	unload_extension $_;
2056	}
2057
2058	# unload all modules loaded from $LIBDIR
2059	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061
2062	warn "removing <$k>";
2063	delete $INC{$k};
2064
2065	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;
2067
2068	if (my $cb = $k->can ("unload_module")) {
2069	$cb->();
2070	}	3769	}
2071		3770
2072	Symbol::delete_package $k;	3771	warn "cancelling all extension coros";
		3772	$_->cancel for values %EXT_CORO;
		3773	%EXT_CORO = ();
		3774
		3775	warn "removing commands";
		3776	%COMMAND = ();
		3777
		3778	warn "removing ext/exti commands";
		3779	%EXTCMD = ();
		3780	%EXTICMD = ();
		3781
		3782	warn "unloading/nuking all extensions";
		3783	for my $pkg (@EXTS) {
		3784	warn "... unloading $pkg";
		3785
		3786	if (my $cb = $pkg->can ("unload")) {
		3787	eval {
		3788	$cb->($pkg);
		3789	1
		3790	} or warn "$pkg unloaded, but with errors: $@";
		3791	}
		3792
		3793	warn "... clearing $pkg";
		3794	clear_package $pkg;
2073	}	3795	}
2074		3796
2075	# sync database to disk	3797	warn "unloading all perl modules loaded from $LIBDIR";
2076	cf::db_sync;	3798	while (my ($k, $v) = each %INC) {
2077	IO::AIO::flush;	3799	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2078		3800
		3801	warn "... unloading $k";
		3802	delete $INC{$k};
		3803
		3804	$k =~ s/\.pm$//;
		3805	$k =~ s/\//::/g;
		3806
		3807	if (my $cb = $k->can ("unload_module")) {
		3808	$cb->();
		3809	}
		3810
		3811	clear_package $k;
		3812	}
		3813
2079	# get rid of safe::, as good as possible	3814	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3815	clear_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3816	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3817
2083	# remove register_script_function callbacks	3818	warn "unloading cf.pm \"a bit\"";
2084	# TODO
2085
2086	# unload cf.pm "a bit"
2087	delete $INC{"cf.pm"};	3819	delete $INC{"cf.pm"};
		3820	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2088		3821
2089	# don't, removes xs symbols, too,	3822	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3823	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3824	#clear_package __PACKAGE__;
2092		3825
2093	# reload cf.pm	3826	warn "unload completed, starting to reload now";
		3827
2094	warn "reloading cf.pm";	3828	warn "reloading cf.pm";
2095	require cf;	3829	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3830	cf::_connect_to_perl_1;
2097		3831
2098	# load config and database again	3832	warn "loading config and database again";
2099	cf::cfg_load;	3833	cf::reload_config;
2100	cf::db_load;
2101		3834
2102	# load extensions
2103	warn "load extensions";	3835	warn "loading extensions";
2104	cf::load_extensions;	3836	cf::load_extensions;
2105		3837
2106	# reattach attachments to objects	3838	if ($REATTACH_ON_RELOAD) {
		3839	warn "reattaching attachments to objects/players";
		3840	_global_reattach; # objects, sockets
		3841	warn "reattaching attachments to maps";
		3842	reattach $_ for values %MAP;
		3843	warn "reattaching attachments to players";
		3844	reattach $_ for values %PLAYER;
		3845	}
		3846
		3847	warn "running post_init jobs";
		3848	(pop @POST_INIT)->(1) while @POST_INIT;
		3849
		3850	warn "leaving sync_job";
		3851
		3852	1
		3853	} or do {
		3854	warn $@;
		3855	cf::cleanup "error while reloading, exiting.";
		3856	};
		3857
2107	warn "reattach";	3858	warn "reloaded";
2108	_global_reattach;	3859	--$RELOAD;
		3860	}
		3861
		3862	$t1 = EV::time - $t1;
		3863	warn "reload completed in ${t1}s\n";
		3864	};
		3865
		3866	our $RELOAD_WATCHER; # used only during reload
		3867
		3868	sub reload_perl() {
		3869	# doing reload synchronously and two reloads happen back-to-back,
		3870	# coro crashes during coro_state_free->destroy here.
		3871
		3872	$RELOAD_WATCHER ||= cf::async {
		3873	Coro::AIO::aio_wait cache_extensions;
		3874
		3875	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3876	do_reload_perl;
		3877	undef $RELOAD_WATCHER;
		3878	};
2109	};	3879	};
2110
2111	if ($@) {
2112	warn $@;
2113	warn "error while reloading, exiting.";
2114	exit 1;
2115	}
2116
2117	warn "reloaded successfully";
2118	};
2119
2120	#############################################################################
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3880	}
2162
2163	register "<global>", __PACKAGE__;
2164		3881
2165	register_command "reload" => sub {	3882	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3883	my ($who, $arg) = @_;
2167		3884
2168	if ($who->flag (FLAG_WIZ)) {	3885	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3886	$who->message ("reloading server.");
		3887	async {
		3888	$Coro::current->{desc} = "perl_reload";
		3889	reload_perl;
		3890	};
2172	}	3891	}
2173	};	3892	};
2174		3893
2175	unshift @INC, $LIBDIR;	3894	unshift @INC, $LIBDIR;
2176		3895
2177	$TICK_WATCHER = Event->timer (	3896	my $bug_warning = 0;
2178	reentrant => 0,	3897
2179	prio => 0,	3898	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	3899	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	3900
2182	cb => sub {	3901	sub wait_for_tick {
		3902	return if tick_inhibit || $Coro::current == $Coro::main;
		3903
		3904	my $signal = new Coro::Signal;
		3905	push @WAIT_FOR_TICK, $signal;
		3906	$signal->wait;
		3907	}
		3908
		3909	sub wait_for_tick_begin {
		3910	return if tick_inhibit || $Coro::current == $Coro::main;
		3911
		3912	my $signal = new Coro::Signal;
		3913	push @WAIT_FOR_TICK_BEGIN, $signal;
		3914	$signal->wait;
		3915	}
		3916
		3917	sub tick {
		3918	if ($Coro::current != $Coro::main) {
		3919	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3920	unless ++$bug_warning > 10;
		3921	return;
		3922	}
		3923
2183	cf::server_tick; # one server iteration	3924	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		3925
2187	# if we are delayed by four ticks or more, skip them all	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2189		3928	Coro::async_pool {
2190	$TICK_WATCHER->at ($NEXT_TICK);	3929	$Coro::current->{desc} = "runtime saver";
2191	$TICK_WATCHER->start;
2192	},
2193	);
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	3930	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2213	})->();	3932	};
2214	},	3933	}
2215	);	3934
		3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3936	$sig->send;
		3937	}
		3938	while (my $sig = shift @WAIT_FOR_TICK) {
		3939	$sig->send;
		3940	}
		3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
		3953
		3954	{
		3955	# configure BDB
		3956
		3957	BDB::min_parallel 8;
		3958	BDB::max_poll_reqs $TICK * 0.1;
		3959	$AnyEvent::BDB::WATCHER->priority (1);
		3960
		3961	unless ($DB_ENV) {
		3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3968
		3969	cf::sync_job {
		3970	eval {
		3971	BDB::db_env_open
		3972	$DB_ENV,
		3973	$BDBDIR,
		3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3976	0666;
		3977
		3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3979	};
		3980
		3981	cf::cleanup "db_env_open(db): $@" if $@;
		3982	};
		3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
		3994	}
		3995
		3996	{
		3997	# configure IO::AIO
		3998
		3999	IO::AIO::min_parallel 8;
		4000	IO::AIO::max_poll_time $TICK * 0.1;
		4001	undef $AnyEvent::AIO::WATCHER;
		4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
		4007	my ($msg, @addr) = @_;
		4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
		4044	}
		4045
		4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2216		4049
2217	END { cf::emergency_save }	4050	END { cf::emergency_save }
2218		4051
2219	1	4052	1
2220		4053

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